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AWS = require('../core');\n\nvar STS = require('../../clients/sts');\n/**\n * Represents temporary credentials retrieved from {AWS.STS}. Without any\n * extra parameters, credentials will be fetched from the\n * {AWS.STS.getSessionToken} operation. If an IAM role is provided, the\n * {AWS.STS.assumeRole} operation will be used to fetch credentials for the\n * role instead.\n *\n * AWS.ChainableTemporaryCredentials differs from AWS.TemporaryCredentials in\n * the way masterCredentials and refreshes are handled.\n * AWS.ChainableTemporaryCredentials refreshes expired credentials using the\n * masterCredentials passed by the user to support chaining of STS credentials.\n * However, AWS.TemporaryCredentials recursively collapses the masterCredentials\n * during instantiation, precluding the ability to refresh credentials which\n * require intermediate, temporary credentials.\n *\n * For example, if the application should use RoleA, which must be assumed from\n * RoleB, and the environment provides credentials which can assume RoleB, then\n * AWS.ChainableTemporaryCredentials must be used to support refreshing the\n * temporary credentials for RoleA:\n *\n * ```javascript\n * var roleACreds = new AWS.ChainableTemporaryCredentials({\n *   params: {RoleArn: 'RoleA'},\n *   masterCredentials: new AWS.ChainableTemporaryCredentials({\n *     params: {RoleArn: 'RoleB'},\n *     masterCredentials: new AWS.EnvironmentCredentials('AWS')\n *   })\n * });\n * ```\n *\n * If AWS.TemporaryCredentials had been used in the previous example,\n * `roleACreds` would fail to refresh because `roleACreds` would\n * use the environment credentials for the AssumeRole request.\n *\n * Another difference is that AWS.ChainableTemporaryCredentials creates the STS\n * service instance during instantiation while AWS.TemporaryCredentials creates\n * the STS service instance during the first refresh. Creating the service\n * instance during instantiation effectively captures the master credentials\n * from the global config, so that subsequent changes to the global config do\n * not affect the master credentials used to refresh the temporary credentials.\n *\n * This allows an instance of AWS.ChainableTemporaryCredentials to be assigned\n * to AWS.config.credentials:\n *\n * ```javascript\n * var envCreds = new AWS.EnvironmentCredentials('AWS');\n * AWS.config.credentials = envCreds;\n * // masterCredentials will be envCreds\n * AWS.config.credentials = new AWS.ChainableTemporaryCredentials({\n *   params: {RoleArn: '...'}\n * });\n * ```\n *\n * Similarly, to use the CredentialProviderChain's default providers as the\n * master credentials, simply create a new instance of\n * AWS.ChainableTemporaryCredentials:\n *\n * ```javascript\n * AWS.config.credentials = new ChainableTemporaryCredentials({\n *   params: {RoleArn: '...'}\n * });\n * ```\n *\n * @!attribute service\n *   @return [AWS.STS] the STS service instance used to\n *     get and refresh temporary credentials from AWS STS.\n * @note (see constructor)\n */\n\n\nAWS.ChainableTemporaryCredentials = AWS.util.inherit(AWS.Credentials, {\n  /**\n   * Creates a new temporary credentials object.\n   *\n   * @param options [map] a set of options\n   * @option options params [map] ({}) a map of options that are passed to the\n   *   {AWS.STS.assumeRole} or {AWS.STS.getSessionToken} operations.\n   *   If a `RoleArn` parameter is passed in, credentials will be based on the\n   *   IAM role. If a `SerialNumber` parameter is passed in, {tokenCodeFn} must\n   *   also be passed in or an error will be thrown.\n   * @option options masterCredentials [AWS.Credentials] the master credentials\n   *   used to get and refresh temporary credentials from AWS STS. By default,\n   *   AWS.config.credentials or AWS.config.credentialProvider will be used.\n   * @option options tokenCodeFn [Function] (null) Function to provide\n   *   `TokenCode`, if `SerialNumber` is provided for profile in {params}. Function\n   *   is called with value of `SerialNumber` and `callback`, and should provide\n   *   the `TokenCode` or an error to the callback in the format\n   *   `callback(err, token)`.\n   * @example Creating a new credentials object for generic temporary credentials\n   *   AWS.config.credentials = new AWS.ChainableTemporaryCredentials();\n   * @example Creating a new credentials object for an IAM role\n   *   AWS.config.credentials = new AWS.ChainableTemporaryCredentials({\n   *     params: {\n   *       RoleArn: 'arn:aws:iam::1234567890:role/TemporaryCredentials'\n   *     }\n   *   });\n   * @see AWS.STS.assumeRole\n   * @see AWS.STS.getSessionToken\n   */\n  constructor: function ChainableTemporaryCredentials(options) {\n    AWS.Credentials.call(this);\n    options = options || {};\n    this.errorCode = 'ChainableTemporaryCredentialsProviderFailure';\n    this.expired = true;\n    this.tokenCodeFn = null;\n    var params = AWS.util.copy(options.params) || {};\n\n    if (params.RoleArn) {\n      params.RoleSessionName = params.RoleSessionName || 'temporary-credentials';\n    }\n\n    if (params.SerialNumber) {\n      if (!options.tokenCodeFn || typeof options.tokenCodeFn !== 'function') {\n        throw new AWS.util.error(new Error('tokenCodeFn must be a function when params.SerialNumber is given'), {\n          code: this.errorCode\n        });\n      } else {\n        this.tokenCodeFn = options.tokenCodeFn;\n      }\n    }\n\n    config = AWS.util.merge({\n      params: params,\n      credentials: options.masterCredentials || AWS.config.credentials\n    }, options.stsConfig || {});\n    this.service = new STS(config);\n  },\n\n  /**\n   * Refreshes credentials using {AWS.STS.assumeRole} or\n   * {AWS.STS.getSessionToken}, depending on whether an IAM role ARN was passed\n   * to the credentials {constructor}.\n   *\n   * @callback callback function(err)\n   *   Called when the STS service responds (or fails). When\n   *   this callback is called with no error, it means that the credentials\n   *   information has been loaded into the object (as the `accessKeyId`,\n   *   `secretAccessKey`, and `sessionToken` properties).\n   *   @param err [Error] if an error occurred, this value will be filled\n   * @see AWS.Credentials.get\n   */\n  refresh: function refresh(callback) {\n    this.coalesceRefresh(callback || AWS.util.fn.callback);\n  },\n\n  /**\n   * @api private\n   * @param callback\n   */\n  load: function load(callback) {\n    var self = this;\n    var operation = self.service.config.params.RoleArn ? 'assumeRole' : 'getSessionToken';\n    this.getTokenCode(function (err, tokenCode) {\n      var params = {};\n\n      if (err) {\n        callback(err);\n        return;\n      }\n\n      if (tokenCode) {\n        params.TokenCode = tokenCode;\n      }\n\n      self.service[operation](params, function (err, data) {\n        if (!err) {\n          self.service.credentialsFrom(data, self);\n        }\n\n        callback(err);\n      });\n    });\n  },\n\n  /**\n   * @api private\n   */\n  getTokenCode: function getTokenCode(callback) {\n    var self = this;\n\n    if (this.tokenCodeFn) {\n      this.tokenCodeFn(this.service.config.params.SerialNumber, function (err, token) {\n        if (err) {\n          var message = err;\n\n          if (err instanceof Error) {\n            message = err.message;\n          }\n\n          callback(AWS.util.error(new Error('Error fetching MFA token: ' + message), {\n            code: self.errorCode\n          }));\n          return;\n        }\n\n        callback(null, token);\n      });\n    } else {\n      callback(null);\n    }\n  }\n});","var util = require('../util');\n\nvar populateHostPrefix = require('./helpers').populateHostPrefix;\n\nfunction populateMethod(req) {\n  req.httpRequest.method = req.service.api.operations[req.operation].httpMethod;\n}\n\nfunction generateURI(endpointPath, operationPath, input, params) {\n  var uri = [endpointPath, operationPath].join('/');\n  uri = uri.replace(/\\/+/g, '/');\n  var queryString = {},\n      queryStringSet = false;\n  util.each(input.members, function (name, member) {\n    var paramValue = params[name];\n    if (paramValue === null || paramValue === undefined) return;\n\n    if (member.location === 'uri') {\n      var regex = new RegExp('\\\\{' + member.name + '(\\\\+)?\\\\}');\n      uri = uri.replace(regex, function (_, plus) {\n        var fn = plus ? util.uriEscapePath : util.uriEscape;\n        return fn(String(paramValue));\n      });\n    } else if (member.location === 'querystring') {\n      queryStringSet = true;\n\n      if (member.type === 'list') {\n        queryString[member.name] = paramValue.map(function (val) {\n          return util.uriEscape(member.member.toWireFormat(val).toString());\n        });\n      } else if (member.type === 'map') {\n        util.each(paramValue, function (key, value) {\n          if (Array.isArray(value)) {\n            queryString[key] = value.map(function (val) {\n              return util.uriEscape(String(val));\n            });\n          } else {\n            queryString[key] = util.uriEscape(String(value));\n          }\n        });\n      } else {\n        queryString[member.name] = util.uriEscape(member.toWireFormat(paramValue).toString());\n      }\n    }\n  });\n\n  if (queryStringSet) {\n    uri += uri.indexOf('?') >= 0 ? '&' : '?';\n    var parts = [];\n    util.arrayEach(Object.keys(queryString).sort(), function (key) {\n      if (!Array.isArray(queryString[key])) {\n        queryString[key] = [queryString[key]];\n      }\n\n      for (var i = 0; i < queryString[key].length; i++) {\n        parts.push(util.uriEscape(String(key)) + '=' + queryString[key][i]);\n      }\n    });\n    uri += parts.join('&');\n  }\n\n  return uri;\n}\n\nfunction populateURI(req) {\n  var operation = req.service.api.operations[req.operation];\n  var input = operation.input;\n  var uri = generateURI(req.httpRequest.endpoint.path, operation.httpPath, input, req.params);\n  req.httpRequest.path = uri;\n}\n\nfunction populateHeaders(req) {\n  var operation = req.service.api.operations[req.operation];\n  util.each(operation.input.members, function (name, member) {\n    var value = req.params[name];\n    if (value === null || value === undefined) return;\n\n    if (member.location === 'headers' && member.type === 'map') {\n      util.each(value, function (key, memberValue) {\n        req.httpRequest.headers[member.name + key] = memberValue;\n      });\n    } else if (member.location === 'header') {\n      value = member.toWireFormat(value).toString();\n\n      if (member.isJsonValue) {\n        value = util.base64.encode(value);\n      }\n\n      req.httpRequest.headers[member.name] = value;\n    }\n  });\n}\n\nfunction buildRequest(req) {\n  populateMethod(req);\n  populateURI(req);\n  populateHeaders(req);\n  populateHostPrefix(req);\n}\n\nfunction extractError() {}\n\nfunction extractData(resp) {\n  var req = resp.request;\n  var data = {};\n  var r = resp.httpResponse;\n  var operation = req.service.api.operations[req.operation];\n  var output = operation.output; // normalize headers names to lower-cased keys for matching\n\n  var headers = {};\n  util.each(r.headers, function (k, v) {\n    headers[k.toLowerCase()] = v;\n  });\n  util.each(output.members, function (name, member) {\n    var header = (member.name || name).toLowerCase();\n\n    if (member.location === 'headers' && member.type === 'map') {\n      data[name] = {};\n      var location = member.isLocationName ? member.name : '';\n      var pattern = new RegExp('^' + location + '(.+)', 'i');\n      util.each(r.headers, function (k, v) {\n        var result = k.match(pattern);\n\n        if (result !== null) {\n          data[name][result[1]] = v;\n        }\n      });\n    } else if (member.location === 'header') {\n      if (headers[header] !== undefined) {\n        var value = member.isJsonValue ? util.base64.decode(headers[header]) : headers[header];\n        data[name] = member.toType(value);\n      }\n    } else if (member.location === 'statusCode') {\n      data[name] = parseInt(r.statusCode, 10);\n    }\n  });\n  resp.data = data;\n}\n/**\n * @api private\n */\n\n\nmodule.exports = {\n  buildRequest: buildRequest,\n  extractError: extractError,\n  extractData: extractData,\n  generateURI: generateURI\n};","var util = require('../core').util;\n\nvar toBuffer = util.buffer.toBuffer;\n/**\n * A lossless representation of a signed, 64-bit integer. Instances of this\n * class may be used in arithmetic expressions as if they were numeric\n * primitives, but the binary representation will be preserved unchanged as the\n * `bytes` property of the object. The bytes should be encoded as big-endian,\n * two's complement integers.\n * @param {Buffer} bytes\n *\n * @api private\n */\n\nfunction Int64(bytes) {\n  if (bytes.length !== 8) {\n    throw new Error('Int64 buffers must be exactly 8 bytes');\n  }\n\n  if (!util.Buffer.isBuffer(bytes)) bytes = toBuffer(bytes);\n  this.bytes = bytes;\n}\n/**\n * @param {number} number\n * @returns {Int64}\n *\n * @api private\n */\n\n\nInt64.fromNumber = function (number) {\n  if (number > 9223372036854775807 || number < -9223372036854775808) {\n    throw new Error(number + ' is too large (or, if negative, too small) to represent as an Int64');\n  }\n\n  var bytes = new Uint8Array(8);\n\n  for (var i = 7, remaining = Math.abs(Math.round(number)); i > -1 && remaining > 0; i--, remaining /= 256) {\n    bytes[i] = remaining;\n  }\n\n  if (number < 0) {\n    negate(bytes);\n  }\n\n  return new Int64(bytes);\n};\n/**\n * @returns {number}\n *\n * @api private\n */\n\n\nInt64.prototype.valueOf = function () {\n  var bytes = this.bytes.slice(0);\n  var negative = bytes[0] & 128;\n\n  if (negative) {\n    negate(bytes);\n  }\n\n  return parseInt(bytes.toString('hex'), 16) * (negative ? -1 : 1);\n};\n\nInt64.prototype.toString = function () {\n  return String(this.valueOf());\n};\n/**\n * @param {Buffer} bytes\n *\n * @api private\n */\n\n\nfunction negate(bytes) {\n  for (var i = 0; i < 8; i++) {\n    bytes[i] ^= 0xFF;\n  }\n\n  for (var i = 7; i > -1; i--) {\n    bytes[i]++;\n\n    if (bytes[i] !== 0) {\n      break;\n    }\n  }\n}\n/**\n * @api private\n */\n\n\nmodule.exports = {\n  Int64: Int64\n};","var AWS = require('./core');\n\nrequire('./credentials');\n\nrequire('./credentials/credential_provider_chain');\n\nvar PromisesDependency;\n/**\n * The main configuration class used by all service objects to set\n * the region, credentials, and other options for requests.\n *\n * By default, credentials and region settings are left unconfigured.\n * This should be configured by the application before using any\n * AWS service APIs.\n *\n * In order to set global configuration options, properties should\n * be assigned to the global {AWS.config} object.\n *\n * @see AWS.config\n *\n * @!group General Configuration Options\n *\n * @!attribute credentials\n *   @return [AWS.Credentials] the AWS credentials to sign requests with.\n *\n * @!attribute region\n *   @example Set the global region setting to us-west-2\n *     AWS.config.update({region: 'us-west-2'});\n *   @return [AWS.Credentials] The region to send service requests to.\n *   @see http://docs.amazonwebservices.com/general/latest/gr/rande.html\n *     A list of available endpoints for each AWS service\n *\n * @!attribute maxRetries\n *   @return [Integer] the maximum amount of retries to perform for a\n *     service request. By default this value is calculated by the specific\n *     service object that the request is being made to.\n *\n * @!attribute maxRedirects\n *   @return [Integer] the maximum amount of redirects to follow for a\n *     service request. Defaults to 10.\n *\n * @!attribute paramValidation\n *   @return [Boolean|map] whether input parameters should be validated against\n *     the operation description before sending the request. Defaults to true.\n *     Pass a map to enable any of the following specific validation features:\n *\n *     * **min** [Boolean] &mdash; Validates that a value meets the min\n *       constraint. This is enabled by default when paramValidation is set\n *       to `true`.\n *     * **max** [Boolean] &mdash; Validates that a value meets the max\n *       constraint.\n *     * **pattern** [Boolean] &mdash; Validates that a string value matches a\n *       regular expression.\n *     * **enum** [Boolean] &mdash; Validates that a string value matches one\n *       of the allowable enum values.\n *\n * @!attribute computeChecksums\n *   @return [Boolean] whether to compute checksums for payload bodies when\n *     the service accepts it (currently supported in S3 only).\n *\n * @!attribute convertResponseTypes\n *   @return [Boolean] whether types are converted when parsing response data.\n *     Currently only supported for JSON based services. Turning this off may\n *     improve performance on large response payloads. Defaults to `true`.\n *\n * @!attribute correctClockSkew\n *   @return [Boolean] whether to apply a clock skew correction and retry\n *     requests that fail because of an skewed client clock. Defaults to\n *     `false`.\n *\n * @!attribute sslEnabled\n *   @return [Boolean] whether SSL is enabled for requests\n *\n * @!attribute s3ForcePathStyle\n *   @return [Boolean] whether to force path style URLs for S3 objects\n *\n * @!attribute s3BucketEndpoint\n *   @note Setting this configuration option requires an `endpoint` to be\n *     provided explicitly to the service constructor.\n *   @return [Boolean] whether the provided endpoint addresses an individual\n *     bucket (false if it addresses the root API endpoint).\n *\n * @!attribute s3DisableBodySigning\n *   @return [Boolean] whether to disable S3 body signing when using signature version `v4`.\n *     Body signing can only be disabled when using https. Defaults to `true`.\n *\n * @!attribute useAccelerateEndpoint\n *   @note This configuration option is only compatible with S3 while accessing\n *     dns-compatible buckets.\n *   @return [Boolean] Whether to use the Accelerate endpoint with the S3 service.\n *     Defaults to `false`.\n *\n * @!attribute retryDelayOptions\n *   @example Set the base retry delay for all services to 300 ms\n *     AWS.config.update({retryDelayOptions: {base: 300}});\n *     // Delays with maxRetries = 3: 300, 600, 1200\n *   @example Set a custom backoff function to provide delay values on retries\n *     AWS.config.update({retryDelayOptions: {customBackoff: function(retryCount) {\n *       // returns delay in ms\n *     }}});\n *   @return [map] A set of options to configure the retry delay on retryable errors.\n *     Currently supported options are:\n *\n *     * **base** [Integer] &mdash; The base number of milliseconds to use in the\n *       exponential backoff for operation retries. Defaults to 100 ms for all services except\n *       DynamoDB, where it defaults to 50ms.\n *     * **customBackoff ** [function] &mdash; A custom function that accepts a retry count\n *       and returns the amount of time to delay in milliseconds. The `base` option will be\n *       ignored if this option is supplied.\n *\n * @!attribute httpOptions\n *   @return [map] A set of options to pass to the low-level HTTP request.\n *     Currently supported options are:\n *\n *     * **proxy** [String] &mdash; the URL to proxy requests through\n *     * **agent** [http.Agent, https.Agent] &mdash; the Agent object to perform\n *       HTTP requests with. Used for connection pooling. Note that for\n *       SSL connections, a special Agent object is used in order to enable\n *       peer certificate verification. This feature is only supported in the\n *       Node.js environment.\n *     * **connectTimeout** [Integer] &mdash; Sets the socket to timeout after\n *       failing to establish a connection with the server after\n *       `connectTimeout` milliseconds. This timeout has no effect once a socket\n *       connection has been established.\n *     * **timeout** [Integer] &mdash; Sets the socket to timeout after timeout\n *       milliseconds of inactivity on the socket. Defaults to two minutes\n *       (120000)\n *     * **xhrAsync** [Boolean] &mdash; Whether the SDK will send asynchronous\n *       HTTP requests. Used in the browser environment only. Set to false to\n *       send requests synchronously. Defaults to true (async on).\n *     * **xhrWithCredentials** [Boolean] &mdash; Sets the \"withCredentials\"\n *       property of an XMLHttpRequest object. Used in the browser environment\n *       only. Defaults to false.\n * @!attribute logger\n *   @return [#write,#log] an object that responds to .write() (like a stream)\n *     or .log() (like the console object) in order to log information about\n *     requests\n *\n * @!attribute systemClockOffset\n *   @return [Number] an offset value in milliseconds to apply to all signing\n *     times. Use this to compensate for clock skew when your system may be\n *     out of sync with the service time. Note that this configuration option\n *     can only be applied to the global `AWS.config` object and cannot be\n *     overridden in service-specific configuration. Defaults to 0 milliseconds.\n *\n * @!attribute signatureVersion\n *   @return [String] the signature version to sign requests with (overriding\n *     the API configuration). Possible values are: 'v2', 'v3', 'v4'.\n *\n * @!attribute signatureCache\n *   @return [Boolean] whether the signature to sign requests with (overriding\n *     the API configuration) is cached. Only applies to the signature version 'v4'.\n *     Defaults to `true`.\n *\n * @!attribute endpointDiscoveryEnabled\n *   @return [Boolean] whether to enable endpoint discovery for operations that\n *     allow optionally using an endpoint returned by the service.\n *     Defaults to 'false'\n *\n * @!attribute endpointCacheSize\n *   @return [Number] the size of the global cache storing endpoints from endpoint\n *     discovery operations. Once endpoint cache is created, updating this setting\n *     cannot change existing cache size.\n *     Defaults to 1000\n *\n * @!attribute hostPrefixEnabled\n *   @return [Boolean] whether to marshal request parameters to the prefix of\n *     hostname. Defaults to `true`.\n */\n\nAWS.Config = AWS.util.inherit({\n  /**\n   * @!endgroup\n   */\n\n  /**\n   * Creates a new configuration object. This is the object that passes\n   * option data along to service requests, including credentials, security,\n   * region information, and some service specific settings.\n   *\n   * @example Creating a new configuration object with credentials and region\n   *   var config = new AWS.Config({\n   *     accessKeyId: 'AKID', secretAccessKey: 'SECRET', region: 'us-west-2'\n   *   });\n   * @option options accessKeyId [String] your AWS access key ID.\n   * @option options secretAccessKey [String] your AWS secret access key.\n   * @option options sessionToken [AWS.Credentials] the optional AWS\n   *   session token to sign requests with.\n   * @option options credentials [AWS.Credentials] the AWS credentials\n   *   to sign requests with. You can either specify this object, or\n   *   specify the accessKeyId and secretAccessKey options directly.\n   * @option options credentialProvider [AWS.CredentialProviderChain] the\n   *   provider chain used to resolve credentials if no static `credentials`\n   *   property is set.\n   * @option options region [String] the region to send service requests to.\n   *   See {region} for more information.\n   * @option options maxRetries [Integer] the maximum amount of retries to\n   *   attempt with a request. See {maxRetries} for more information.\n   * @option options maxRedirects [Integer] the maximum amount of redirects to\n   *   follow with a request. See {maxRedirects} for more information.\n   * @option options sslEnabled [Boolean] whether to enable SSL for\n   *   requests.\n   * @option options paramValidation [Boolean|map] whether input parameters\n   *   should be validated against the operation description before sending\n   *   the request. Defaults to true. Pass a map to enable any of the\n   *   following specific validation features:\n   *\n   *   * **min** [Boolean] &mdash; Validates that a value meets the min\n   *     constraint. This is enabled by default when paramValidation is set\n   *     to `true`.\n   *   * **max** [Boolean] &mdash; Validates that a value meets the max\n   *     constraint.\n   *   * **pattern** [Boolean] &mdash; Validates that a string value matches a\n   *     regular expression.\n   *   * **enum** [Boolean] &mdash; Validates that a string value matches one\n   *     of the allowable enum values.\n   * @option options computeChecksums [Boolean] whether to compute checksums\n   *   for payload bodies when the service accepts it (currently supported\n   *   in S3 only)\n   * @option options convertResponseTypes [Boolean] whether types are converted\n   *     when parsing response data. Currently only supported for JSON based\n   *     services. Turning this off may improve performance on large response\n   *     payloads. Defaults to `true`.\n   * @option options correctClockSkew [Boolean] whether to apply a clock skew\n   *     correction and retry requests that fail because of an skewed client\n   *     clock. Defaults to `false`.\n   * @option options s3ForcePathStyle [Boolean] whether to force path\n   *   style URLs for S3 objects.\n   * @option options s3BucketEndpoint [Boolean] whether the provided endpoint\n   *   addresses an individual bucket (false if it addresses the root API\n   *   endpoint). Note that setting this configuration option requires an\n   *   `endpoint` to be provided explicitly to the service constructor.\n   * @option options s3DisableBodySigning [Boolean] whether S3 body signing\n   *   should be disabled when using signature version `v4`. Body signing\n   *   can only be disabled when using https. Defaults to `true`.\n   *\n   * @option options retryDelayOptions [map] A set of options to configure\n   *   the retry delay on retryable errors. Currently supported options are:\n   *\n   *   * **base** [Integer] &mdash; The base number of milliseconds to use in the\n   *     exponential backoff for operation retries. Defaults to 100 ms for all\n   *     services except DynamoDB, where it defaults to 50ms.\n   *   * **customBackoff ** [function] &mdash; A custom function that accepts a retry count\n   *     and returns the amount of time to delay in milliseconds. The `base` option will be\n   *     ignored if this option is supplied.\n   * @option options httpOptions [map] A set of options to pass to the low-level\n   *   HTTP request. Currently supported options are:\n   *\n   *   * **proxy** [String] &mdash; the URL to proxy requests through\n   *   * **agent** [http.Agent, https.Agent] &mdash; the Agent object to perform\n   *     HTTP requests with. Used for connection pooling. Defaults to the global\n   *     agent (`http.globalAgent`) for non-SSL connections. Note that for\n   *     SSL connections, a special Agent object is used in order to enable\n   *     peer certificate verification. This feature is only available in the\n   *     Node.js environment.\n   *   * **connectTimeout** [Integer] &mdash; Sets the socket to timeout after\n   *     failing to establish a connection with the server after\n   *     `connectTimeout` milliseconds. This timeout has no effect once a socket\n   *     connection has been established.\n   *   * **timeout** [Integer] &mdash; Sets the socket to timeout after timeout\n   *     milliseconds of inactivity on the socket. Defaults to two minutes\n   *     (120000).\n   *   * **xhrAsync** [Boolean] &mdash; Whether the SDK will send asynchronous\n   *     HTTP requests. Used in the browser environment only. Set to false to\n   *     send requests synchronously. Defaults to true (async on).\n   *   * **xhrWithCredentials** [Boolean] &mdash; Sets the \"withCredentials\"\n   *     property of an XMLHttpRequest object. Used in the browser environment\n   *     only. Defaults to false.\n   * @option options apiVersion [String, Date] a String in YYYY-MM-DD format\n   *   (or a date) that represents the latest possible API version that can be\n   *   used in all services (unless overridden by `apiVersions`). Specify\n   *   'latest' to use the latest possible version.\n   * @option options apiVersions [map<String, String|Date>] a map of service\n   *   identifiers (the lowercase service class name) with the API version to\n   *   use when instantiating a service. Specify 'latest' for each individual\n   *   that can use the latest available version.\n   * @option options logger [#write,#log] an object that responds to .write()\n   *   (like a stream) or .log() (like the console object) in order to log\n   *   information about requests\n   * @option options systemClockOffset [Number] an offset value in milliseconds\n   *   to apply to all signing times. Use this to compensate for clock skew\n   *   when your system may be out of sync with the service time. Note that\n   *   this configuration option can only be applied to the global `AWS.config`\n   *   object and cannot be overridden in service-specific configuration.\n   *   Defaults to 0 milliseconds.\n   * @option options signatureVersion [String] the signature version to sign\n   *   requests with (overriding the API configuration). Possible values are:\n   *   'v2', 'v3', 'v4'.\n   * @option options signatureCache [Boolean] whether the signature to sign\n   *   requests with (overriding the API configuration) is cached. Only applies\n   *   to the signature version 'v4'. Defaults to `true`.\n   * @option options dynamoDbCrc32 [Boolean] whether to validate the CRC32\n   *   checksum of HTTP response bodies returned by DynamoDB. Default: `true`.\n   * @option options useAccelerateEndpoint [Boolean] Whether to use the\n   *   S3 Transfer Acceleration endpoint with the S3 service. Default: `false`.\n   * @option options clientSideMonitoring [Boolean] whether to collect and\n   *   publish this client's performance metrics of all its API requests.\n   * @option options endpointDiscoveryEnabled [Boolean] whether to enable endpoint\n   *   discovery for operations that allow optionally using an endpoint returned by\n   *   the service.\n   *   Defaults to 'false'\n   * @option options endpointCacheSize [Number] the size of the global cache storing\n   *   endpoints from endpoint discovery operations. Once endpoint cache is created,\n   *   updating this setting cannot change existing cache size.\n   *   Defaults to 1000\n   * @option options hostPrefixEnabled [Boolean] whether to marshal request\n   *   parameters to the prefix of hostname.\n   *   Defaults to `true`.\n   */\n  constructor: function Config(options) {\n    if (options === undefined) options = {};\n    options = this.extractCredentials(options);\n    AWS.util.each.call(this, this.keys, function (key, value) {\n      this.set(key, options[key], value);\n    });\n  },\n\n  /**\n   * @!group Managing Credentials\n   */\n\n  /**\n   * Loads credentials from the configuration object. This is used internally\n   * by the SDK to ensure that refreshable {Credentials} objects are properly\n   * refreshed and loaded when sending a request. If you want to ensure that\n   * your credentials are loaded prior to a request, you can use this method\n   * directly to provide accurate credential data stored in the object.\n   *\n   * @note If you configure the SDK with static or environment credentials,\n   *   the credential data should already be present in {credentials} attribute.\n   *   This method is primarily necessary to load credentials from asynchronous\n   *   sources, or sources that can refresh credentials periodically.\n   * @example Getting your access key\n   *   AWS.config.getCredentials(function(err) {\n   *     if (err) console.log(err.stack); // credentials not loaded\n   *     else console.log(\"Access Key:\", AWS.config.credentials.accessKeyId);\n   *   })\n   * @callback callback function(err)\n   *   Called when the {credentials} have been properly set on the configuration\n   *   object.\n   *\n   *   @param err [Error] if this is set, credentials were not successfully\n   *     loaded and this error provides information why.\n   * @see credentials\n   * @see Credentials\n   */\n  getCredentials: function getCredentials(callback) {\n    var self = this;\n\n    function finish(err) {\n      callback(err, err ? null : self.credentials);\n    }\n\n    function credError(msg, err) {\n      return new AWS.util.error(err || new Error(), {\n        code: 'CredentialsError',\n        message: msg,\n        name: 'CredentialsError'\n      });\n    }\n\n    function getAsyncCredentials() {\n      self.credentials.get(function (err) {\n        if (err) {\n          var msg = 'Could not load credentials from ' + self.credentials.constructor.name;\n          err = credError(msg, err);\n        }\n\n        finish(err);\n      });\n    }\n\n    function getStaticCredentials() {\n      var err = null;\n\n      if (!self.credentials.accessKeyId || !self.credentials.secretAccessKey) {\n        err = credError('Missing credentials');\n      }\n\n      finish(err);\n    }\n\n    if (self.credentials) {\n      if (typeof self.credentials.get === 'function') {\n        getAsyncCredentials();\n      } else {\n        // static credentials\n        getStaticCredentials();\n      }\n    } else if (self.credentialProvider) {\n      self.credentialProvider.resolve(function (err, creds) {\n        if (err) {\n          err = credError('Could not load credentials from any providers', err);\n        }\n\n        self.credentials = creds;\n        finish(err);\n      });\n    } else {\n      finish(credError('No credentials to load'));\n    }\n  },\n\n  /**\n   * @!group Loading and Setting Configuration Options\n   */\n\n  /**\n   * @overload update(options, allowUnknownKeys = false)\n   *   Updates the current configuration object with new options.\n   *\n   *   @example Update maxRetries property of a configuration object\n   *     config.update({maxRetries: 10});\n   *   @param [Object] options a map of option keys and values.\n   *   @param [Boolean] allowUnknownKeys whether unknown keys can be set on\n   *     the configuration object. Defaults to `false`.\n   *   @see constructor\n   */\n  update: function update(options, allowUnknownKeys) {\n    allowUnknownKeys = allowUnknownKeys || false;\n    options = this.extractCredentials(options);\n    AWS.util.each.call(this, options, function (key, value) {\n      if (allowUnknownKeys || Object.prototype.hasOwnProperty.call(this.keys, key) || AWS.Service.hasService(key)) {\n        this.set(key, value);\n      }\n    });\n  },\n\n  /**\n   * Loads configuration data from a JSON file into this config object.\n   * @note Loading configuration will reset all existing configuration\n   *   on the object.\n   * @!macro nobrowser\n   * @param path [String] the path relative to your process's current\n   *    working directory to load configuration from.\n   * @return [AWS.Config] the same configuration object\n   */\n  loadFromPath: function loadFromPath(path) {\n    this.clear();\n    var options = JSON.parse(AWS.util.readFileSync(path));\n    var fileSystemCreds = new AWS.FileSystemCredentials(path);\n    var chain = new AWS.CredentialProviderChain();\n    chain.providers.unshift(fileSystemCreds);\n    chain.resolve(function (err, creds) {\n      if (err) throw err;else options.credentials = creds;\n    });\n    this.constructor(options);\n    return this;\n  },\n\n  /**\n   * Clears configuration data on this object\n   *\n   * @api private\n   */\n  clear: function clear() {\n    /*jshint forin:false */\n    AWS.util.each.call(this, this.keys, function (key) {\n      delete this[key];\n    }); // reset credential provider\n\n    this.set('credentials', undefined);\n    this.set('credentialProvider', undefined);\n  },\n\n  /**\n   * Sets a property on the configuration object, allowing for a\n   * default value\n   * @api private\n   */\n  set: function set(property, value, defaultValue) {\n    if (value === undefined) {\n      if (defaultValue === undefined) {\n        defaultValue = this.keys[property];\n      }\n\n      if (typeof defaultValue === 'function') {\n        this[property] = defaultValue.call(this);\n      } else {\n        this[property] = defaultValue;\n      }\n    } else if (property === 'httpOptions' && this[property]) {\n      // deep merge httpOptions\n      this[property] = AWS.util.merge(this[property], value);\n    } else {\n      this[property] = value;\n    }\n  },\n\n  /**\n   * All of the keys with their default values.\n   *\n   * @constant\n   * @api private\n   */\n  keys: {\n    credentials: null,\n    credentialProvider: null,\n    region: null,\n    logger: null,\n    apiVersions: {},\n    apiVersion: null,\n    endpoint: undefined,\n    httpOptions: {\n      timeout: 120000\n    },\n    maxRetries: undefined,\n    maxRedirects: 10,\n    paramValidation: true,\n    sslEnabled: true,\n    s3ForcePathStyle: false,\n    s3BucketEndpoint: false,\n    s3DisableBodySigning: true,\n    computeChecksums: true,\n    convertResponseTypes: true,\n    correctClockSkew: false,\n    customUserAgent: null,\n    dynamoDbCrc32: true,\n    systemClockOffset: 0,\n    signatureVersion: null,\n    signatureCache: true,\n    retryDelayOptions: {},\n    useAccelerateEndpoint: false,\n    clientSideMonitoring: false,\n    endpointDiscoveryEnabled: false,\n    endpointCacheSize: 1000,\n    hostPrefixEnabled: true\n  },\n\n  /**\n   * Extracts accessKeyId, secretAccessKey and sessionToken\n   * from a configuration hash.\n   *\n   * @api private\n   */\n  extractCredentials: function extractCredentials(options) {\n    if (options.accessKeyId && options.secretAccessKey) {\n      options = AWS.util.copy(options);\n      options.credentials = new AWS.Credentials(options);\n    }\n\n    return options;\n  },\n\n  /**\n   * Sets the promise dependency the SDK will use wherever Promises are returned.\n   * Passing `null` will force the SDK to use native Promises if they are available.\n   * If native Promises are not available, passing `null` will have no effect.\n   * @param [Constructor] dep A reference to a Promise constructor\n   */\n  setPromisesDependency: function setPromisesDependency(dep) {\n    PromisesDependency = dep; // if null was passed in, we should try to use native promises\n\n    if (dep === null && typeof Promise === 'function') {\n      PromisesDependency = Promise;\n    }\n\n    var constructors = [AWS.Request, AWS.Credentials, AWS.CredentialProviderChain];\n    if (AWS.S3 && AWS.S3.ManagedUpload) constructors.push(AWS.S3.ManagedUpload);\n    AWS.util.addPromises(constructors, PromisesDependency);\n  },\n\n  /**\n   * Gets the promise dependency set by `AWS.config.setPromisesDependency`.\n   */\n  getPromisesDependency: function getPromisesDependency() {\n    return PromisesDependency;\n  }\n});\n/**\n * @return [AWS.Config] The global configuration object singleton instance\n * @readonly\n * @see AWS.Config\n */\n\nAWS.config = new AWS.Config();","module.exports = function isBuffer(arg) {\n  return arg && typeof arg === 'object' && typeof arg.copy === 'function' && typeof arg.fill === 'function' && typeof arg.readUInt8 === 'function';\n};","var Buffer = require('buffer/').Buffer;\n\nvar hashUtils = require('./browserHashUtils');\n\nvar BLOCK_SIZE = 64;\nvar DIGEST_LENGTH = 20;\nvar KEY = new Uint32Array([0x5a827999, 0x6ed9eba1, 0x8f1bbcdc | 0, 0xca62c1d6 | 0]);\nvar INIT = [0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19];\nvar MAX_HASHABLE_LENGTH = Math.pow(2, 53) - 1;\n/**\n * @api private\n */\n\nfunction Sha1() {\n  this.h0 = 0x67452301;\n  this.h1 = 0xEFCDAB89;\n  this.h2 = 0x98BADCFE;\n  this.h3 = 0x10325476;\n  this.h4 = 0xC3D2E1F0; // The first 64 bytes (16 words) is the data chunk\n\n  this.block = new Uint32Array(80);\n  this.offset = 0;\n  this.shift = 24;\n  this.totalLength = 0;\n}\n/**\n * @api private\n */\n\n\nmodule.exports = exports = Sha1;\nSha1.BLOCK_SIZE = BLOCK_SIZE;\n\nSha1.prototype.update = function (data) {\n  if (this.finished) {\n    throw new Error('Attempted to update an already finished hash.');\n  }\n\n  if (hashUtils.isEmptyData(data)) {\n    return this;\n  }\n\n  data = hashUtils.convertToBuffer(data);\n  var length = data.length;\n  this.totalLength += length * 8;\n\n  for (var i = 0; i < length; i++) {\n    this.write(data[i]);\n  }\n\n  return this;\n};\n\nSha1.prototype.write = function write(byte) {\n  this.block[this.offset] |= (byte & 0xff) << this.shift;\n\n  if (this.shift) {\n    this.shift -= 8;\n  } else {\n    this.offset++;\n    this.shift = 24;\n  }\n\n  if (this.offset === 16) this.processBlock();\n};\n\nSha1.prototype.digest = function (encoding) {\n  // Pad\n  this.write(0x80);\n\n  if (this.offset > 14 || this.offset === 14 && this.shift < 24) {\n    this.processBlock();\n  }\n\n  this.offset = 14;\n  this.shift = 24; // 64-bit length big-endian\n\n  this.write(0x00); // numbers this big aren't accurate in javascript anyway\n\n  this.write(0x00); // ..So just hard-code to zero.\n\n  this.write(this.totalLength > 0xffffffffff ? this.totalLength / 0x10000000000 : 0x00);\n  this.write(this.totalLength > 0xffffffff ? this.totalLength / 0x100000000 : 0x00);\n\n  for (var s = 24; s >= 0; s -= 8) {\n    this.write(this.totalLength >> s);\n  } // The value in state is little-endian rather than big-endian, so flip\n  // each word into a new Uint8Array\n\n\n  var out = new Buffer(DIGEST_LENGTH);\n  var outView = new DataView(out.buffer);\n  outView.setUint32(0, this.h0, false);\n  outView.setUint32(4, this.h1, false);\n  outView.setUint32(8, this.h2, false);\n  outView.setUint32(12, this.h3, false);\n  outView.setUint32(16, this.h4, false);\n  return encoding ? out.toString(encoding) : out;\n};\n\nSha1.prototype.processBlock = function processBlock() {\n  // Extend the sixteen 32-bit words into eighty 32-bit words:\n  for (var i = 16; i < 80; i++) {\n    var w = this.block[i - 3] ^ this.block[i - 8] ^ this.block[i - 14] ^ this.block[i - 16];\n    this.block[i] = w << 1 | w >>> 31;\n  } // Initialize hash value for this chunk:\n\n\n  var a = this.h0;\n  var b = this.h1;\n  var c = this.h2;\n  var d = this.h3;\n  var e = this.h4;\n  var f, k; // Main loop:\n\n  for (i = 0; i < 80; i++) {\n    if (i < 20) {\n      f = d ^ b & (c ^ d);\n      k = 0x5A827999;\n    } else if (i < 40) {\n      f = b ^ c ^ d;\n      k = 0x6ED9EBA1;\n    } else if (i < 60) {\n      f = b & c | d & (b | c);\n      k = 0x8F1BBCDC;\n    } else {\n      f = b ^ c ^ d;\n      k = 0xCA62C1D6;\n    }\n\n    var temp = (a << 5 | a >>> 27) + f + e + k + (this.block[i] | 0);\n    e = d;\n    d = c;\n    c = b << 30 | b >>> 2;\n    b = a;\n    a = temp;\n  } // Add this chunk's hash to result so far:\n\n\n  this.h0 = this.h0 + a | 0;\n  this.h1 = this.h1 + b | 0;\n  this.h2 = this.h2 + c | 0;\n  this.h3 = this.h3 + d | 0;\n  this.h4 = this.h4 + e | 0; // The block is now reusable.\n\n  this.offset = 0;\n\n  for (i = 0; i < 16; i++) {\n    this.block[i] = 0;\n  }\n};","var AWS = require('../core');\n\nvar CognitoIdentity = require('../../clients/cognitoidentity');\n\nvar STS = require('../../clients/sts');\n/**\n * Represents credentials retrieved from STS Web Identity Federation using\n * the Amazon Cognito Identity service.\n *\n * By default this provider gets credentials using the\n * {AWS.CognitoIdentity.getCredentialsForIdentity} service operation, which\n * requires either an `IdentityId` or an `IdentityPoolId` (Amazon Cognito\n * Identity Pool ID), which is used to call {AWS.CognitoIdentity.getId} to\n * obtain an `IdentityId`. If the identity or identity pool is not configured in\n * the Amazon Cognito Console to use IAM roles with the appropriate permissions,\n * then additionally a `RoleArn` is required containing the ARN of the IAM trust\n * policy for the Amazon Cognito role that the user will log into. If a `RoleArn`\n * is provided, then this provider gets credentials using the\n * {AWS.STS.assumeRoleWithWebIdentity} service operation, after first getting an\n * Open ID token from {AWS.CognitoIdentity.getOpenIdToken}.\n *\n * In addition, if this credential provider is used to provide authenticated\n * login, the `Logins` map may be set to the tokens provided by the respective\n * identity providers. See {constructor} for an example on creating a credentials\n * object with proper property values.\n *\n * ## Refreshing Credentials from Identity Service\n *\n * In addition to AWS credentials expiring after a given amount of time, the\n * login token from the identity provider will also expire. Once this token\n * expires, it will not be usable to refresh AWS credentials, and another\n * token will be needed. The SDK does not manage refreshing of the token value,\n * but this can be done through a \"refresh token\" supported by most identity\n * providers. Consult the documentation for the identity provider for refreshing\n * tokens. Once the refreshed token is acquired, you should make sure to update\n * this new token in the credentials object's {params} property. The following\n * code will update the WebIdentityToken, assuming you have retrieved an updated\n * token from the identity provider:\n *\n * ```javascript\n * AWS.config.credentials.params.Logins['graph.facebook.com'] = updatedToken;\n * ```\n *\n * Future calls to `credentials.refresh()` will now use the new token.\n *\n * @!attribute params\n *   @return [map] the map of params passed to\n *     {AWS.CognitoIdentity.getId},\n *     {AWS.CognitoIdentity.getOpenIdToken}, and\n *     {AWS.STS.assumeRoleWithWebIdentity}. To update the token, set the\n *     `params.WebIdentityToken` property.\n * @!attribute data\n *   @return [map] the raw data response from the call to\n *     {AWS.CognitoIdentity.getCredentialsForIdentity}, or\n *     {AWS.STS.assumeRoleWithWebIdentity}. Use this if you want to get\n *     access to other properties from the response.\n * @!attribute identityId\n *   @return [String] the Cognito ID returned by the last call to\n *     {AWS.CognitoIdentity.getOpenIdToken}. This ID represents the actual\n *     final resolved identity ID from Amazon Cognito.\n */\n\n\nAWS.CognitoIdentityCredentials = AWS.util.inherit(AWS.Credentials, {\n  /**\n   * @api private\n   */\n  localStorageKey: {\n    id: 'aws.cognito.identity-id.',\n    providers: 'aws.cognito.identity-providers.'\n  },\n\n  /**\n   * Creates a new credentials object.\n   * @example Creating a new credentials object\n   *   AWS.config.credentials = new AWS.CognitoIdentityCredentials({\n   *\n   *     // either IdentityPoolId or IdentityId is required\n   *     // See the IdentityPoolId param for AWS.CognitoIdentity.getID (linked below)\n   *     // See the IdentityId param for AWS.CognitoIdentity.getCredentialsForIdentity\n   *     // or AWS.CognitoIdentity.getOpenIdToken (linked below)\n   *     IdentityPoolId: 'us-east-1:1699ebc0-7900-4099-b910-2df94f52a030',\n   *     IdentityId: 'us-east-1:128d0a74-c82f-4553-916d-90053e4a8b0f'\n   *\n   *     // optional, only necessary when the identity pool is not configured\n   *     // to use IAM roles in the Amazon Cognito Console\n   *     // See the RoleArn param for AWS.STS.assumeRoleWithWebIdentity (linked below)\n   *     RoleArn: 'arn:aws:iam::1234567890:role/MYAPP-CognitoIdentity',\n   *\n   *     // optional tokens, used for authenticated login\n   *     // See the Logins param for AWS.CognitoIdentity.getID (linked below)\n   *     Logins: {\n   *       'graph.facebook.com': 'FBTOKEN',\n   *       'www.amazon.com': 'AMAZONTOKEN',\n   *       'accounts.google.com': 'GOOGLETOKEN',\n   *       'api.twitter.com': 'TWITTERTOKEN',\n   *       'www.digits.com': 'DIGITSTOKEN'\n   *     },\n   *\n   *     // optional name, defaults to web-identity\n   *     // See the RoleSessionName param for AWS.STS.assumeRoleWithWebIdentity (linked below)\n   *     RoleSessionName: 'web',\n   *\n   *     // optional, only necessary when application runs in a browser\n   *     // and multiple users are signed in at once, used for caching\n   *     LoginId: 'example@gmail.com'\n   *\n   *   }, {\n   *      // optionally provide configuration to apply to the underlying service clients\n   *      // if configuration is not provided, then configuration will be pulled from AWS.config\n   *\n   *      // region should match the region your identity pool is located in\n   *      region: 'us-east-1',\n   *\n   *      // specify timeout options\n   *      httpOptions: {\n   *        timeout: 100\n   *      }\n   *   });\n   * @see AWS.CognitoIdentity.getId\n   * @see AWS.CognitoIdentity.getCredentialsForIdentity\n   * @see AWS.STS.assumeRoleWithWebIdentity\n   * @see AWS.CognitoIdentity.getOpenIdToken\n   * @see AWS.Config\n   * @note If a region is not provided in the global AWS.config, or\n   *   specified in the `clientConfig` to the CognitoIdentityCredentials\n   *   constructor, you may encounter a 'Missing credentials in config' error\n   *   when calling making a service call.\n   */\n  constructor: function CognitoIdentityCredentials(params, clientConfig) {\n    AWS.Credentials.call(this);\n    this.expired = true;\n    this.params = params;\n    this.data = null;\n    this._identityId = null;\n    this._clientConfig = AWS.util.copy(clientConfig || {});\n    this.loadCachedId();\n    var self = this;\n    Object.defineProperty(this, 'identityId', {\n      get: function get() {\n        self.loadCachedId();\n        return self._identityId || self.params.IdentityId;\n      },\n      set: function set(identityId) {\n        self._identityId = identityId;\n      }\n    });\n  },\n\n  /**\n   * Refreshes credentials using {AWS.CognitoIdentity.getCredentialsForIdentity},\n   * or {AWS.STS.assumeRoleWithWebIdentity}.\n   *\n   * @callback callback function(err)\n   *   Called when the STS service responds (or fails). When\n   *   this callback is called with no error, it means that the credentials\n   *   information has been loaded into the object (as the `accessKeyId`,\n   *   `secretAccessKey`, and `sessionToken` properties).\n   *   @param err [Error] if an error occurred, this value will be filled\n   * @see AWS.Credentials.get\n   */\n  refresh: function refresh(callback) {\n    this.coalesceRefresh(callback || AWS.util.fn.callback);\n  },\n\n  /**\n   * @api private\n   * @param callback\n   */\n  load: function load(callback) {\n    var self = this;\n    self.createClients();\n    self.data = null;\n    self._identityId = null;\n    self.getId(function (err) {\n      if (!err) {\n        if (!self.params.RoleArn) {\n          self.getCredentialsForIdentity(callback);\n        } else {\n          self.getCredentialsFromSTS(callback);\n        }\n      } else {\n        self.clearIdOnNotAuthorized(err);\n        callback(err);\n      }\n    });\n  },\n\n  /**\n   * Clears the cached Cognito ID associated with the currently configured\n   * identity pool ID. Use this to manually invalidate your cache if\n   * the identity pool ID was deleted.\n   */\n  clearCachedId: function clearCache() {\n    this._identityId = null;\n    delete this.params.IdentityId;\n    var poolId = this.params.IdentityPoolId;\n    var loginId = this.params.LoginId || '';\n    delete this.storage[this.localStorageKey.id + poolId + loginId];\n    delete this.storage[this.localStorageKey.providers + poolId + loginId];\n  },\n\n  /**\n   * @api private\n   */\n  clearIdOnNotAuthorized: function clearIdOnNotAuthorized(err) {\n    var self = this;\n\n    if (err.code == 'NotAuthorizedException') {\n      self.clearCachedId();\n    }\n  },\n\n  /**\n   * Retrieves a Cognito ID, loading from cache if it was already retrieved\n   * on this device.\n   *\n   * @callback callback function(err, identityId)\n   *   @param err [Error, null] an error object if the call failed or null if\n   *     it succeeded.\n   *   @param identityId [String, null] if successful, the callback will return\n   *     the Cognito ID.\n   * @note If not loaded explicitly, the Cognito ID is loaded and stored in\n   *   localStorage in the browser environment of a device.\n   * @api private\n   */\n  getId: function getId(callback) {\n    var self = this;\n\n    if (typeof self.params.IdentityId === 'string') {\n      return callback(null, self.params.IdentityId);\n    }\n\n    self.cognito.getId(function (err, data) {\n      if (!err && data.IdentityId) {\n        self.params.IdentityId = data.IdentityId;\n        callback(null, data.IdentityId);\n      } else {\n        callback(err);\n      }\n    });\n  },\n\n  /**\n   * @api private\n   */\n  loadCredentials: function loadCredentials(data, credentials) {\n    if (!data || !credentials) return;\n    credentials.expired = false;\n    credentials.accessKeyId = data.Credentials.AccessKeyId;\n    credentials.secretAccessKey = data.Credentials.SecretKey;\n    credentials.sessionToken = data.Credentials.SessionToken;\n    credentials.expireTime = data.Credentials.Expiration;\n  },\n\n  /**\n   * @api private\n   */\n  getCredentialsForIdentity: function getCredentialsForIdentity(callback) {\n    var self = this;\n    self.cognito.getCredentialsForIdentity(function (err, data) {\n      if (!err) {\n        self.cacheId(data);\n        self.data = data;\n        self.loadCredentials(self.data, self);\n      } else {\n        self.clearIdOnNotAuthorized(err);\n      }\n\n      callback(err);\n    });\n  },\n\n  /**\n   * @api private\n   */\n  getCredentialsFromSTS: function getCredentialsFromSTS(callback) {\n    var self = this;\n    self.cognito.getOpenIdToken(function (err, data) {\n      if (!err) {\n        self.cacheId(data);\n        self.params.WebIdentityToken = data.Token;\n        self.webIdentityCredentials.refresh(function (webErr) {\n          if (!webErr) {\n            self.data = self.webIdentityCredentials.data;\n            self.sts.credentialsFrom(self.data, self);\n          }\n\n          callback(webErr);\n        });\n      } else {\n        self.clearIdOnNotAuthorized(err);\n        callback(err);\n      }\n    });\n  },\n\n  /**\n   * @api private\n   */\n  loadCachedId: function loadCachedId() {\n    var self = this; // in the browser we source default IdentityId from localStorage\n\n    if (AWS.util.isBrowser() && !self.params.IdentityId) {\n      var id = self.getStorage('id');\n\n      if (id && self.params.Logins) {\n        var actualProviders = Object.keys(self.params.Logins);\n        var cachedProviders = (self.getStorage('providers') || '').split(','); // only load ID if at least one provider used this ID before\n\n        var intersect = cachedProviders.filter(function (n) {\n          return actualProviders.indexOf(n) !== -1;\n        });\n\n        if (intersect.length !== 0) {\n          self.params.IdentityId = id;\n        }\n      } else if (id) {\n        self.params.IdentityId = id;\n      }\n    }\n  },\n\n  /**\n   * @api private\n   */\n  createClients: function createClients() {\n    var clientConfig = this._clientConfig;\n    this.webIdentityCredentials = this.webIdentityCredentials || new AWS.WebIdentityCredentials(this.params, clientConfig);\n\n    if (!this.cognito) {\n      var cognitoConfig = AWS.util.merge({}, clientConfig);\n      cognitoConfig.params = this.params;\n      this.cognito = new CognitoIdentity(cognitoConfig);\n    }\n\n    this.sts = this.sts || new STS(clientConfig);\n  },\n\n  /**\n   * @api private\n   */\n  cacheId: function cacheId(data) {\n    this._identityId = data.IdentityId;\n    this.params.IdentityId = this._identityId; // cache this IdentityId in browser localStorage if possible\n\n    if (AWS.util.isBrowser()) {\n      this.setStorage('id', data.IdentityId);\n\n      if (this.params.Logins) {\n        this.setStorage('providers', Object.keys(this.params.Logins).join(','));\n      }\n    }\n  },\n\n  /**\n   * @api private\n   */\n  getStorage: function getStorage(key) {\n    return this.storage[this.localStorageKey[key] + this.params.IdentityPoolId + (this.params.LoginId || '')];\n  },\n\n  /**\n   * @api private\n   */\n  setStorage: function setStorage(key, val) {\n    try {\n      this.storage[this.localStorageKey[key] + this.params.IdentityPoolId + (this.params.LoginId || '')] = val;\n    } catch (_) {}\n  },\n\n  /**\n   * @api private\n   */\n  storage: function () {\n    try {\n      var storage = AWS.util.isBrowser() && window.localStorage !== null && typeof window.localStorage === 'object' ? window.localStorage : {}; // Test set/remove which would throw an error in Safari's private browsing\n\n      storage['aws.test-storage'] = 'foobar';\n      delete storage['aws.test-storage'];\n      return storage;\n    } catch (_) {\n      return {};\n    }\n  }()\n});","function apiLoader(svc, version) {\n  if (!apiLoader.services.hasOwnProperty(svc)) {\n    throw new Error('InvalidService: Failed to load api for ' + svc);\n  }\n\n  return apiLoader.services[svc][version];\n}\n/**\n * @api private\n *\n * This member of AWS.apiLoader is private, but changing it will necessitate a\n * change to ../scripts/services-table-generator.ts\n */\n\n\napiLoader.services = {};\n/**\n * @api private\n */\n\nmodule.exports = apiLoader;","var AWS = require('../core');\n\nvar STS = require('../../clients/sts');\n/**\n * Represents credentials retrieved from STS SAML support.\n *\n * By default this provider gets credentials using the\n * {AWS.STS.assumeRoleWithSAML} service operation. This operation\n * requires a `RoleArn` containing the ARN of the IAM trust policy for the\n * application for which credentials will be given, as well as a `PrincipalArn`\n * representing the ARN for the SAML identity provider. In addition, the\n * `SAMLAssertion` must be set to the token provided by the identity\n * provider. See {constructor} for an example on creating a credentials\n * object with proper `RoleArn`, `PrincipalArn`, and `SAMLAssertion` values.\n *\n * ## Refreshing Credentials from Identity Service\n *\n * In addition to AWS credentials expiring after a given amount of time, the\n * login token from the identity provider will also expire. Once this token\n * expires, it will not be usable to refresh AWS credentials, and another\n * token will be needed. The SDK does not manage refreshing of the token value,\n * but this can be done through a \"refresh token\" supported by most identity\n * providers. Consult the documentation for the identity provider for refreshing\n * tokens. Once the refreshed token is acquired, you should make sure to update\n * this new token in the credentials object's {params} property. The following\n * code will update the SAMLAssertion, assuming you have retrieved an updated\n * token from the identity provider:\n *\n * ```javascript\n * AWS.config.credentials.params.SAMLAssertion = updatedToken;\n * ```\n *\n * Future calls to `credentials.refresh()` will now use the new token.\n *\n * @!attribute params\n *   @return [map] the map of params passed to\n *     {AWS.STS.assumeRoleWithSAML}. To update the token, set the\n *     `params.SAMLAssertion` property.\n */\n\n\nAWS.SAMLCredentials = AWS.util.inherit(AWS.Credentials, {\n  /**\n   * Creates a new credentials object.\n   * @param (see AWS.STS.assumeRoleWithSAML)\n   * @example Creating a new credentials object\n   *   AWS.config.credentials = new AWS.SAMLCredentials({\n   *     RoleArn: 'arn:aws:iam::1234567890:role/SAMLRole',\n   *     PrincipalArn: 'arn:aws:iam::1234567890:role/SAMLPrincipal',\n   *     SAMLAssertion: 'base64-token', // base64-encoded token from IdP\n   *   });\n   * @see AWS.STS.assumeRoleWithSAML\n   */\n  constructor: function SAMLCredentials(params) {\n    AWS.Credentials.call(this);\n    this.expired = true;\n    this.params = params;\n  },\n\n  /**\n   * Refreshes credentials using {AWS.STS.assumeRoleWithSAML}\n   *\n   * @callback callback function(err)\n   *   Called when the STS service responds (or fails). When\n   *   this callback is called with no error, it means that the credentials\n   *   information has been loaded into the object (as the `accessKeyId`,\n   *   `secretAccessKey`, and `sessionToken` properties).\n   *   @param err [Error] if an error occurred, this value will be filled\n   * @see get\n   */\n  refresh: function refresh(callback) {\n    this.coalesceRefresh(callback || AWS.util.fn.callback);\n  },\n\n  /**\n   * @api private\n   */\n  load: function load(callback) {\n    var self = this;\n    self.createClients();\n    self.service.assumeRoleWithSAML(function (err, data) {\n      if (!err) {\n        self.service.credentialsFrom(data, self);\n      }\n\n      callback(err);\n    });\n  },\n\n  /**\n   * @api private\n   */\n  createClients: function createClients() {\n    this.service = this.service || new STS({\n      params: this.params\n    });\n  }\n});","var util = require('../util');\n\nvar JsonBuilder = require('../json/builder');\n\nvar JsonParser = require('../json/parser');\n\nvar populateHostPrefix = require('./helpers').populateHostPrefix;\n\nfunction buildRequest(req) {\n  var httpRequest = req.httpRequest;\n  var api = req.service.api;\n  var target = api.targetPrefix + '.' + api.operations[req.operation].name;\n  var version = api.jsonVersion || '1.0';\n  var input = api.operations[req.operation].input;\n  var builder = new JsonBuilder();\n  if (version === 1) version = '1.0';\n  httpRequest.body = builder.build(req.params || {}, input);\n  httpRequest.headers['Content-Type'] = 'application/x-amz-json-' + version;\n  httpRequest.headers['X-Amz-Target'] = target;\n  populateHostPrefix(req);\n}\n\nfunction extractError(resp) {\n  var error = {};\n  var httpResponse = resp.httpResponse;\n  error.code = httpResponse.headers['x-amzn-errortype'] || 'UnknownError';\n\n  if (typeof error.code === 'string') {\n    error.code = error.code.split(':')[0];\n  }\n\n  if (httpResponse.body.length > 0) {\n    try {\n      var e = JSON.parse(httpResponse.body.toString());\n\n      if (e.__type || e.code) {\n        error.code = (e.__type || e.code).split('#').pop();\n      }\n\n      if (error.code === 'RequestEntityTooLarge') {\n        error.message = 'Request body must be less than 1 MB';\n      } else {\n        error.message = e.message || e.Message || null;\n      }\n    } catch (e) {\n      error.statusCode = httpResponse.statusCode;\n      error.message = httpResponse.statusMessage;\n    }\n  } else {\n    error.statusCode = httpResponse.statusCode;\n    error.message = httpResponse.statusCode.toString();\n  }\n\n  resp.error = util.error(new Error(), error);\n}\n\nfunction extractData(resp) {\n  var body = resp.httpResponse.body.toString() || '{}';\n\n  if (resp.request.service.config.convertResponseTypes === false) {\n    resp.data = JSON.parse(body);\n  } else {\n    var operation = resp.request.service.api.operations[resp.request.operation];\n    var shape = operation.output || {};\n    var parser = new JsonParser();\n    resp.data = parser.parse(body, shape);\n  }\n}\n/**\n * @api private\n */\n\n\nmodule.exports = {\n  buildRequest: buildRequest,\n  extractError: extractError,\n  extractData: extractData\n};","var Shape = require('./shape');\n\nvar util = require('../util');\n\nvar property = util.property;\nvar memoizedProperty = util.memoizedProperty;\n\nfunction Operation(name, operation, options) {\n  var self = this;\n  options = options || {};\n  property(this, 'name', operation.name || name);\n  property(this, 'api', options.api, false);\n  operation.http = operation.http || {};\n  property(this, 'endpoint', operation.endpoint);\n  property(this, 'httpMethod', operation.http.method || 'POST');\n  property(this, 'httpPath', operation.http.requestUri || '/');\n  property(this, 'authtype', operation.authtype || '');\n  property(this, 'endpointDiscoveryRequired', operation.endpointdiscovery ? operation.endpointdiscovery.required ? 'REQUIRED' : 'OPTIONAL' : 'NULL');\n  memoizedProperty(this, 'input', function () {\n    if (!operation.input) {\n      return new Shape.create({\n        type: 'structure'\n      }, options);\n    }\n\n    return Shape.create(operation.input, options);\n  });\n  memoizedProperty(this, 'output', function () {\n    if (!operation.output) {\n      return new Shape.create({\n        type: 'structure'\n      }, options);\n    }\n\n    return Shape.create(operation.output, options);\n  });\n  memoizedProperty(this, 'errors', function () {\n    var list = [];\n    if (!operation.errors) return null;\n\n    for (var i = 0; i < operation.errors.length; i++) {\n      list.push(Shape.create(operation.errors[i], options));\n    }\n\n    return list;\n  });\n  memoizedProperty(this, 'paginator', function () {\n    return options.api.paginators[name];\n  });\n\n  if (options.documentation) {\n    property(this, 'documentation', operation.documentation);\n    property(this, 'documentationUrl', operation.documentationUrl);\n  } // idempotentMembers only tracks top-level input shapes\n\n\n  memoizedProperty(this, 'idempotentMembers', function () {\n    var idempotentMembers = [];\n    var input = self.input;\n    var members = input.members;\n\n    if (!input.members) {\n      return idempotentMembers;\n    }\n\n    for (var name in members) {\n      if (!members.hasOwnProperty(name)) {\n        continue;\n      }\n\n      if (members[name].isIdempotent === true) {\n        idempotentMembers.push(name);\n      }\n    }\n\n    return idempotentMembers;\n  });\n  memoizedProperty(this, 'hasEventOutput', function () {\n    var output = self.output;\n    return hasEventStream(output);\n  });\n}\n\nfunction hasEventStream(topLevelShape) {\n  var members = topLevelShape.members;\n  var payload = topLevelShape.payload;\n\n  if (!topLevelShape.members) {\n    return false;\n  }\n\n  if (payload) {\n    var payloadMember = members[payload];\n    return payloadMember.isEventStream;\n  } // check if any member is an event stream\n\n\n  for (var name in members) {\n    if (!members.hasOwnProperty(name)) {\n      if (members[name].isEventStream === true) {\n        return true;\n      }\n    }\n  }\n\n  return false;\n}\n/**\n * @api private\n */\n\n\nmodule.exports = Operation;","function AcceptorStateMachine(states, state) {\n  this.currentState = state || null;\n  this.states = states || {};\n}\n\nAcceptorStateMachine.prototype.runTo = function runTo(finalState, done, bindObject, inputError) {\n  if (typeof finalState === 'function') {\n    inputError = bindObject;\n    bindObject = done;\n    done = finalState;\n    finalState = null;\n  }\n\n  var self = this;\n  var state = self.states[self.currentState];\n  state.fn.call(bindObject || self, inputError, function (err) {\n    if (err) {\n      if (state.fail) self.currentState = state.fail;else return done ? done.call(bindObject, err) : null;\n    } else {\n      if (state.accept) self.currentState = state.accept;else return done ? done.call(bindObject) : null;\n    }\n\n    if (self.currentState === finalState) {\n      return done ? done.call(bindObject, err) : null;\n    }\n\n    self.runTo(finalState, done, bindObject, err);\n  });\n};\n\nAcceptorStateMachine.prototype.addState = function addState(name, acceptState, failState, fn) {\n  if (typeof acceptState === 'function') {\n    fn = acceptState;\n    acceptState = null;\n    failState = null;\n  } else if (typeof failState === 'function') {\n    fn = failState;\n    failState = null;\n  }\n\n  if (!this.currentState) this.currentState = name;\n  this.states[name] = {\n    accept: acceptState,\n    fail: failState,\n    fn: fn\n  };\n  return this;\n};\n/**\n * @api private\n */\n\n\nmodule.exports = AcceptorStateMachine;","var toString = {}.toString;\n\nmodule.exports = Array.isArray || function (arr) {\n  return toString.call(arr) == '[object Array]';\n};","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n'use strict';\n\nvar stringifyPrimitive = function stringifyPrimitive(v) {\n  switch (typeof v) {\n    case 'string':\n      return v;\n\n    case 'boolean':\n      return v ? 'true' : 'false';\n\n    case 'number':\n      return isFinite(v) ? v : '';\n\n    default:\n      return '';\n  }\n};\n\nmodule.exports = function (obj, sep, eq, name) {\n  sep = sep || '&';\n  eq = eq || '=';\n\n  if (obj === null) {\n    obj = undefined;\n  }\n\n  if (typeof obj === 'object') {\n    return map(objectKeys(obj), function (k) {\n      var ks = encodeURIComponent(stringifyPrimitive(k)) + eq;\n\n      if (isArray(obj[k])) {\n        return map(obj[k], function (v) {\n          return ks + encodeURIComponent(stringifyPrimitive(v));\n        }).join(sep);\n      } else {\n        return ks + encodeURIComponent(stringifyPrimitive(obj[k]));\n      }\n    }).join(sep);\n  }\n\n  if (!name) return '';\n  return encodeURIComponent(stringifyPrimitive(name)) + eq + encodeURIComponent(stringifyPrimitive(obj));\n};\n\nvar isArray = Array.isArray || function (xs) {\n  return Object.prototype.toString.call(xs) === '[object Array]';\n};\n\nfunction map(xs, f) {\n  if (xs.map) return xs.map(f);\n  var res = [];\n\n  for (var i = 0; i < xs.length; i++) {\n    res.push(f(xs[i], i));\n  }\n\n  return res;\n}\n\nvar objectKeys = Object.keys || function (obj) {\n  var res = [];\n\n  for (var key in obj) {\n    if (Object.prototype.hasOwnProperty.call(obj, key)) res.push(key);\n  }\n\n  return res;\n};","var Buffer = require('buffer/').Buffer;\n\nvar hashUtils = require('./browserHashUtils');\n\nvar BLOCK_SIZE = 64;\nvar DIGEST_LENGTH = 32;\nvar KEY = new Uint32Array([0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5, 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da, 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967, 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070, 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3, 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2]);\nvar INIT = [0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19];\nvar MAX_HASHABLE_LENGTH = Math.pow(2, 53) - 1;\n/**\n * @private\n */\n\nfunction Sha256() {\n  this.state = [0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19];\n  this.temp = new Int32Array(64);\n  this.buffer = new Uint8Array(64);\n  this.bufferLength = 0;\n  this.bytesHashed = 0;\n  /**\n   * @private\n   */\n\n  this.finished = false;\n}\n/**\n * @api private\n */\n\n\nmodule.exports = exports = Sha256;\nSha256.BLOCK_SIZE = BLOCK_SIZE;\n\nSha256.prototype.update = function (data) {\n  if (this.finished) {\n    throw new Error('Attempted to update an already finished hash.');\n  }\n\n  if (hashUtils.isEmptyData(data)) {\n    return this;\n  }\n\n  data = hashUtils.convertToBuffer(data);\n  var position = 0;\n  var byteLength = data.byteLength;\n  this.bytesHashed += byteLength;\n\n  if (this.bytesHashed * 8 > MAX_HASHABLE_LENGTH) {\n    throw new Error('Cannot hash more than 2^53 - 1 bits');\n  }\n\n  while (byteLength > 0) {\n    this.buffer[this.bufferLength++] = data[position++];\n    byteLength--;\n\n    if (this.bufferLength === BLOCK_SIZE) {\n      this.hashBuffer();\n      this.bufferLength = 0;\n    }\n  }\n\n  return this;\n};\n\nSha256.prototype.digest = function (encoding) {\n  if (!this.finished) {\n    var bitsHashed = this.bytesHashed * 8;\n    var bufferView = new DataView(this.buffer.buffer, this.buffer.byteOffset, this.buffer.byteLength);\n    var undecoratedLength = this.bufferLength;\n    bufferView.setUint8(this.bufferLength++, 0x80); // Ensure the final block has enough room for the hashed length\n\n    if (undecoratedLength % BLOCK_SIZE >= BLOCK_SIZE - 8) {\n      for (var i = this.bufferLength; i < BLOCK_SIZE; i++) {\n        bufferView.setUint8(i, 0);\n      }\n\n      this.hashBuffer();\n      this.bufferLength = 0;\n    }\n\n    for (var i = this.bufferLength; i < BLOCK_SIZE - 8; i++) {\n      bufferView.setUint8(i, 0);\n    }\n\n    bufferView.setUint32(BLOCK_SIZE - 8, Math.floor(bitsHashed / 0x100000000), true);\n    bufferView.setUint32(BLOCK_SIZE - 4, bitsHashed);\n    this.hashBuffer();\n    this.finished = true;\n  } // The value in state is little-endian rather than big-endian, so flip\n  // each word into a new Uint8Array\n\n\n  var out = new Buffer(DIGEST_LENGTH);\n\n  for (var i = 0; i < 8; i++) {\n    out[i * 4] = this.state[i] >>> 24 & 0xff;\n    out[i * 4 + 1] = this.state[i] >>> 16 & 0xff;\n    out[i * 4 + 2] = this.state[i] >>> 8 & 0xff;\n    out[i * 4 + 3] = this.state[i] >>> 0 & 0xff;\n  }\n\n  return encoding ? out.toString(encoding) : out;\n};\n\nSha256.prototype.hashBuffer = function () {\n  var _a = this,\n      buffer = _a.buffer,\n      state = _a.state;\n\n  var state0 = state[0],\n      state1 = state[1],\n      state2 = state[2],\n      state3 = state[3],\n      state4 = state[4],\n      state5 = state[5],\n      state6 = state[6],\n      state7 = state[7];\n\n  for (var i = 0; i < BLOCK_SIZE; i++) {\n    if (i < 16) {\n      this.temp[i] = (buffer[i * 4] & 0xff) << 24 | (buffer[i * 4 + 1] & 0xff) << 16 | (buffer[i * 4 + 2] & 0xff) << 8 | buffer[i * 4 + 3] & 0xff;\n    } else {\n      var u = this.temp[i - 2];\n      var t1_1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ u >>> 10;\n      u = this.temp[i - 15];\n      var t2_1 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ u >>> 3;\n      this.temp[i] = (t1_1 + this.temp[i - 7] | 0) + (t2_1 + this.temp[i - 16] | 0);\n    }\n\n    var t1 = (((state4 >>> 6 | state4 << 26) ^ (state4 >>> 11 | state4 << 21) ^ (state4 >>> 25 | state4 << 7)) + (state4 & state5 ^ ~state4 & state6) | 0) + (state7 + (KEY[i] + this.temp[i] | 0) | 0) | 0;\n    var t2 = ((state0 >>> 2 | state0 << 30) ^ (state0 >>> 13 | state0 << 19) ^ (state0 >>> 22 | state0 << 10)) + (state0 & state1 ^ state0 & state2 ^ state1 & state2) | 0;\n    state7 = state6;\n    state6 = state5;\n    state5 = state4;\n    state4 = state3 + t1 | 0;\n    state3 = state2;\n    state2 = state1;\n    state1 = state0;\n    state0 = t1 + t2 | 0;\n  }\n\n  state[0] += state0;\n  state[1] += state1;\n  state[2] += state2;\n  state[3] += state3;\n  state[4] += state4;\n  state[5] += state5;\n  state[6] += state6;\n  state[7] += state7;\n};","var fails = require('../internals/fails');\nvar whitespaces = require('../internals/whitespaces');\n\nvar non = '\\u200B\\u0085\\u180E';\n\n// check that a method works with the correct list\n// of whitespaces and has a correct name\nmodule.exports = function (METHOD_NAME) {\n  return fails(function () {\n    return !!whitespaces[METHOD_NAME]() || non[METHOD_NAME]() != non || whitespaces[METHOD_NAME].name !== METHOD_NAME;\n  });\n};\n","var escapeElement = require('./escape-element').escapeElement;\n/**\n * Represents an XML text value.\n * @api private\n */\n\n\nfunction XmlText(value) {\n  this.value = value;\n}\n\nXmlText.prototype.toString = function () {\n  return escapeElement('' + this.value);\n};\n/**\n * @api private\n */\n\n\nmodule.exports = {\n  XmlText: XmlText\n};","var hashUtils = require('./browserHashUtils');\n/**\n * @api private\n */\n\n\nfunction Hmac(hashCtor, secret) {\n  this.hash = new hashCtor();\n  this.outer = new hashCtor();\n  var inner = bufferFromSecret(hashCtor, secret);\n  var outer = new Uint8Array(hashCtor.BLOCK_SIZE);\n  outer.set(inner);\n\n  for (var i = 0; i < hashCtor.BLOCK_SIZE; i++) {\n    inner[i] ^= 0x36;\n    outer[i] ^= 0x5c;\n  }\n\n  this.hash.update(inner);\n  this.outer.update(outer); // Zero out the copied key buffer.\n\n  for (var i = 0; i < inner.byteLength; i++) {\n    inner[i] = 0;\n  }\n}\n/**\n * @api private\n */\n\n\nmodule.exports = exports = Hmac;\n\nHmac.prototype.update = function (toHash) {\n  if (hashUtils.isEmptyData(toHash) || this.error) {\n    return this;\n  }\n\n  try {\n    this.hash.update(hashUtils.convertToBuffer(toHash));\n  } catch (e) {\n    this.error = e;\n  }\n\n  return this;\n};\n\nHmac.prototype.digest = function (encoding) {\n  if (!this.outer.finished) {\n    this.outer.update(this.hash.digest());\n  }\n\n  return this.outer.digest(encoding);\n};\n\nfunction bufferFromSecret(hashCtor, secret) {\n  var input = hashUtils.convertToBuffer(secret);\n\n  if (input.byteLength > hashCtor.BLOCK_SIZE) {\n    var bufferHash = new hashCtor();\n    bufferHash.update(input);\n    input = bufferHash.digest();\n  }\n\n  var buffer = new Uint8Array(hashCtor.BLOCK_SIZE);\n  buffer.set(input);\n  return buffer;\n}",";\n\n(function (root, factory, undef) {\n  if (typeof exports === \"object\") {\n    // CommonJS\n    module.exports = exports = factory(require(\"./core\"), require(\"./sha256\"), require(\"./hmac\"));\n  } else if (typeof define === \"function\" && define.amd) {\n    // AMD\n    define([\"./core\", \"./sha256\", \"./hmac\"], factory);\n  } else {\n    // Global (browser)\n    factory(root.CryptoJS);\n  }\n})(this, function (CryptoJS) {\n  return CryptoJS.HmacSHA256;\n});","var AWS = require('../core');\n\nAWS.util.update(AWS.STS.prototype, {\n  /**\n   * @overload credentialsFrom(data, credentials = null)\n   *   Creates a credentials object from STS response data containing\n   *   credentials information. Useful for quickly setting AWS credentials.\n   *\n   *   @note This is a low-level utility function. If you want to load temporary\n   *     credentials into your process for subsequent requests to AWS resources,\n   *     you should use {AWS.TemporaryCredentials} instead.\n   *   @param data [map] data retrieved from a call to {getFederatedToken},\n   *     {getSessionToken}, {assumeRole}, or {assumeRoleWithWebIdentity}.\n   *   @param credentials [AWS.Credentials] an optional credentials object to\n   *     fill instead of creating a new object. Useful when modifying an\n   *     existing credentials object from a refresh call.\n   *   @return [AWS.TemporaryCredentials] the set of temporary credentials\n   *     loaded from a raw STS operation response.\n   *   @example Using credentialsFrom to load global AWS credentials\n   *     var sts = new AWS.STS();\n   *     sts.getSessionToken(function (err, data) {\n   *       if (err) console.log(\"Error getting credentials\");\n   *       else {\n   *         AWS.config.credentials = sts.credentialsFrom(data);\n   *       }\n   *     });\n   *   @see AWS.TemporaryCredentials\n   */\n  credentialsFrom: function credentialsFrom(data, credentials) {\n    if (!data) return null;\n    if (!credentials) credentials = new AWS.TemporaryCredentials();\n    credentials.expired = false;\n    credentials.accessKeyId = data.Credentials.AccessKeyId;\n    credentials.secretAccessKey = data.Credentials.SecretAccessKey;\n    credentials.sessionToken = data.Credentials.SessionToken;\n    credentials.expireTime = data.Credentials.Expiration;\n    return credentials;\n  },\n  assumeRoleWithWebIdentity: function assumeRoleWithWebIdentity(params, callback) {\n    return this.makeUnauthenticatedRequest('assumeRoleWithWebIdentity', params, callback);\n  },\n  assumeRoleWithSAML: function assumeRoleWithSAML(params, callback) {\n    return this.makeUnauthenticatedRequest('assumeRoleWithSAML', params, callback);\n  }\n});","/**\n * Escapes characters that can not be in an XML element.\n */\nfunction escapeElement(value) {\n  return value.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');\n}\n/**\n * @api private\n */\n\n\nmodule.exports = {\n  escapeElement: escapeElement\n};","var v1 = require('./v1');\n\nvar v4 = require('./v4');\n\nvar uuid = v4;\nuuid.v1 = v1;\nuuid.v4 = v4;\nmodule.exports = uuid;","var Int64 = require('./int64').Int64;\n\nvar splitMessage = require('./split-message').splitMessage;\n\nvar BOOLEAN_TAG = 'boolean';\nvar BYTE_TAG = 'byte';\nvar SHORT_TAG = 'short';\nvar INT_TAG = 'integer';\nvar LONG_TAG = 'long';\nvar BINARY_TAG = 'binary';\nvar STRING_TAG = 'string';\nvar TIMESTAMP_TAG = 'timestamp';\nvar UUID_TAG = 'uuid';\n/**\n * @api private\n *\n * @param {Buffer} headers\n */\n\nfunction parseHeaders(headers) {\n  var out = {};\n  var position = 0;\n\n  while (position < headers.length) {\n    var nameLength = headers.readUInt8(position++);\n    var name = headers.slice(position, position + nameLength).toString();\n    position += nameLength;\n\n    switch (headers.readUInt8(position++)) {\n      case 0\n      /* boolTrue */\n      :\n        out[name] = {\n          type: BOOLEAN_TAG,\n          value: true\n        };\n        break;\n\n      case 1\n      /* boolFalse */\n      :\n        out[name] = {\n          type: BOOLEAN_TAG,\n          value: false\n        };\n        break;\n\n      case 2\n      /* byte */\n      :\n        out[name] = {\n          type: BYTE_TAG,\n          value: headers.readInt8(position++)\n        };\n        break;\n\n      case 3\n      /* short */\n      :\n        out[name] = {\n          type: SHORT_TAG,\n          value: headers.readInt16BE(position)\n        };\n        position += 2;\n        break;\n\n      case 4\n      /* integer */\n      :\n        out[name] = {\n          type: INT_TAG,\n          value: headers.readInt32BE(position)\n        };\n        position += 4;\n        break;\n\n      case 5\n      /* long */\n      :\n        out[name] = {\n          type: LONG_TAG,\n          value: new Int64(headers.slice(position, position + 8))\n        };\n        position += 8;\n        break;\n\n      case 6\n      /* byteArray */\n      :\n        var binaryLength = headers.readUInt16BE(position);\n        position += 2;\n        out[name] = {\n          type: BINARY_TAG,\n          value: headers.slice(position, position + binaryLength)\n        };\n        position += binaryLength;\n        break;\n\n      case 7\n      /* string */\n      :\n        var stringLength = headers.readUInt16BE(position);\n        position += 2;\n        out[name] = {\n          type: STRING_TAG,\n          value: headers.slice(position, position + stringLength).toString()\n        };\n        position += stringLength;\n        break;\n\n      case 8\n      /* timestamp */\n      :\n        out[name] = {\n          type: TIMESTAMP_TAG,\n          value: new Date(new Int64(headers.slice(position, position + 8)).valueOf())\n        };\n        position += 8;\n        break;\n\n      case 9\n      /* uuid */\n      :\n        var uuidChars = headers.slice(position, position + 16).toString('hex');\n        position += 16;\n        out[name] = {\n          type: UUID_TAG,\n          value: uuidChars.substr(0, 8) + '-' + uuidChars.substr(8, 4) + '-' + uuidChars.substr(12, 4) + '-' + uuidChars.substr(16, 4) + '-' + uuidChars.substr(20)\n        };\n        break;\n\n      default:\n        throw new Error('Unrecognized header type tag');\n    }\n  }\n\n  return out;\n}\n\nfunction parseMessage(message) {\n  var parsed = splitMessage(message);\n  return {\n    headers: parseHeaders(parsed.headers),\n    body: parsed.body\n  };\n}\n/**\n * @api private\n */\n\n\nmodule.exports = {\n  parseMessage: parseMessage\n};","var Hmac = require('./browserHmac');\n\nvar Md5 = require('./browserMd5');\n\nvar Sha1 = require('./browserSha1');\n\nvar Sha256 = require('./browserSha256');\n/**\n * @api private\n */\n\n\nmodule.exports = exports = {\n  createHash: function createHash(alg) {\n    alg = alg.toLowerCase();\n\n    if (alg === 'md5') {\n      return new Md5();\n    } else if (alg === 'sha256') {\n      return new Sha256();\n    } else if (alg === 'sha1') {\n      return new Sha1();\n    }\n\n    throw new Error('Hash algorithm ' + alg + ' is not supported in the browser SDK');\n  },\n  createHmac: function createHmac(alg, key) {\n    alg = alg.toLowerCase();\n\n    if (alg === 'md5') {\n      return new Hmac(Md5, key);\n    } else if (alg === 'sha256') {\n      return new Hmac(Sha256, key);\n    } else if (alg === 'sha1') {\n      return new Hmac(Sha1, key);\n    }\n\n    throw new Error('HMAC algorithm ' + alg + ' is not supported in the browser SDK');\n  },\n  createSign: function createSign() {\n    throw new Error('createSign is not implemented in the browser');\n  }\n};","var AWS = require('./core');\n\nvar AcceptorStateMachine = require('./state_machine');\n\nvar inherit = AWS.util.inherit;\nvar domain = AWS.util.domain;\n\nvar jmespath = require('jmespath');\n/**\n * @api private\n */\n\n\nvar hardErrorStates = {\n  success: 1,\n  error: 1,\n  complete: 1\n};\n\nfunction isTerminalState(machine) {\n  return Object.prototype.hasOwnProperty.call(hardErrorStates, machine._asm.currentState);\n}\n\nvar fsm = new AcceptorStateMachine();\n\nfsm.setupStates = function () {\n  var transition = function transition(_, done) {\n    var self = this;\n    self._haltHandlersOnError = false;\n    self.emit(self._asm.currentState, function (err) {\n      if (err) {\n        if (isTerminalState(self)) {\n          if (domain && self.domain instanceof domain.Domain) {\n            err.domainEmitter = self;\n            err.domain = self.domain;\n            err.domainThrown = false;\n            self.domain.emit('error', err);\n          } else {\n            throw err;\n          }\n        } else {\n          self.response.error = err;\n          done(err);\n        }\n      } else {\n        done(self.response.error);\n      }\n    });\n  };\n\n  this.addState('validate', 'build', 'error', transition);\n  this.addState('build', 'afterBuild', 'restart', transition);\n  this.addState('afterBuild', 'sign', 'restart', transition);\n  this.addState('sign', 'send', 'retry', transition);\n  this.addState('retry', 'afterRetry', 'afterRetry', transition);\n  this.addState('afterRetry', 'sign', 'error', transition);\n  this.addState('send', 'validateResponse', 'retry', transition);\n  this.addState('validateResponse', 'extractData', 'extractError', transition);\n  this.addState('extractError', 'extractData', 'retry', transition);\n  this.addState('extractData', 'success', 'retry', transition);\n  this.addState('restart', 'build', 'error', transition);\n  this.addState('success', 'complete', 'complete', transition);\n  this.addState('error', 'complete', 'complete', transition);\n  this.addState('complete', null, null, transition);\n};\n\nfsm.setupStates();\n/**\n * ## Asynchronous Requests\n *\n * All requests made through the SDK are asynchronous and use a\n * callback interface. Each service method that kicks off a request\n * returns an `AWS.Request` object that you can use to register\n * callbacks.\n *\n * For example, the following service method returns the request\n * object as \"request\", which can be used to register callbacks:\n *\n * ```javascript\n * // request is an AWS.Request object\n * var request = ec2.describeInstances();\n *\n * // register callbacks on request to retrieve response data\n * request.on('success', function(response) {\n *   console.log(response.data);\n * });\n * ```\n *\n * When a request is ready to be sent, the {send} method should\n * be called:\n *\n * ```javascript\n * request.send();\n * ```\n *\n * Since registered callbacks may or may not be idempotent, requests should only\n * be sent once. To perform the same operation multiple times, you will need to\n * create multiple request objects, each with its own registered callbacks.\n *\n * ## Removing Default Listeners for Events\n *\n * Request objects are built with default listeners for the various events,\n * depending on the service type. In some cases, you may want to remove\n * some built-in listeners to customize behaviour. Doing this requires\n * access to the built-in listener functions, which are exposed through\n * the {AWS.EventListeners.Core} namespace. For instance, you may\n * want to customize the HTTP handler used when sending a request. In this\n * case, you can remove the built-in listener associated with the 'send'\n * event, the {AWS.EventListeners.Core.SEND} listener and add your own.\n *\n * ## Multiple Callbacks and Chaining\n *\n * You can register multiple callbacks on any request object. The\n * callbacks can be registered for different events, or all for the\n * same event. In addition, you can chain callback registration, for\n * example:\n *\n * ```javascript\n * request.\n *   on('success', function(response) {\n *     console.log(\"Success!\");\n *   }).\n *   on('error', function(error, response) {\n *     console.log(\"Error!\");\n *   }).\n *   on('complete', function(response) {\n *     console.log(\"Always!\");\n *   }).\n *   send();\n * ```\n *\n * The above example will print either \"Success! Always!\", or \"Error! Always!\",\n * depending on whether the request succeeded or not.\n *\n * @!attribute httpRequest\n *   @readonly\n *   @!group HTTP Properties\n *   @return [AWS.HttpRequest] the raw HTTP request object\n *     containing request headers and body information\n *     sent by the service.\n *\n * @!attribute startTime\n *   @readonly\n *   @!group Operation Properties\n *   @return [Date] the time that the request started\n *\n * @!group Request Building Events\n *\n * @!event validate(request)\n *   Triggered when a request is being validated. Listeners\n *   should throw an error if the request should not be sent.\n *   @param request [Request] the request object being sent\n *   @see AWS.EventListeners.Core.VALIDATE_CREDENTIALS\n *   @see AWS.EventListeners.Core.VALIDATE_REGION\n *   @example Ensuring that a certain parameter is set before sending a request\n *     var req = s3.putObject(params);\n *     req.on('validate', function() {\n *       if (!req.params.Body.match(/^Hello\\s/)) {\n *         throw new Error('Body must start with \"Hello \"');\n *       }\n *     });\n *     req.send(function(err, data) { ... });\n *\n * @!event build(request)\n *   Triggered when the request payload is being built. Listeners\n *   should fill the necessary information to send the request\n *   over HTTP.\n *   @param (see AWS.Request~validate)\n *   @example Add a custom HTTP header to a request\n *     var req = s3.putObject(params);\n *     req.on('build', function() {\n *       req.httpRequest.headers['Custom-Header'] = 'value';\n *     });\n *     req.send(function(err, data) { ... });\n *\n * @!event sign(request)\n *   Triggered when the request is being signed. Listeners should\n *   add the correct authentication headers and/or adjust the body,\n *   depending on the authentication mechanism being used.\n *   @param (see AWS.Request~validate)\n *\n * @!group Request Sending Events\n *\n * @!event send(response)\n *   Triggered when the request is ready to be sent. Listeners\n *   should call the underlying transport layer to initiate\n *   the sending of the request.\n *   @param response [Response] the response object\n *   @context [Request] the request object that was sent\n *   @see AWS.EventListeners.Core.SEND\n *\n * @!event retry(response)\n *   Triggered when a request failed and might need to be retried or redirected.\n *   If the response is retryable, the listener should set the\n *   `response.error.retryable` property to `true`, and optionally set\n *   `response.error.retryDelay` to the millisecond delay for the next attempt.\n *   In the case of a redirect, `response.error.redirect` should be set to\n *   `true` with `retryDelay` set to an optional delay on the next request.\n *\n *   If a listener decides that a request should not be retried,\n *   it should set both `retryable` and `redirect` to false.\n *\n *   Note that a retryable error will be retried at most\n *   {AWS.Config.maxRetries} times (based on the service object's config).\n *   Similarly, a request that is redirected will only redirect at most\n *   {AWS.Config.maxRedirects} times.\n *\n *   @param (see AWS.Request~send)\n *   @context (see AWS.Request~send)\n *   @example Adding a custom retry for a 404 response\n *     request.on('retry', function(response) {\n *       // this resource is not yet available, wait 10 seconds to get it again\n *       if (response.httpResponse.statusCode === 404 && response.error) {\n *         response.error.retryable = true;   // retry this error\n *         response.error.retryDelay = 10000; // wait 10 seconds\n *       }\n *     });\n *\n * @!group Data Parsing Events\n *\n * @!event extractError(response)\n *   Triggered on all non-2xx requests so that listeners can extract\n *   error details from the response body. Listeners to this event\n *   should set the `response.error` property.\n *   @param (see AWS.Request~send)\n *   @context (see AWS.Request~send)\n *\n * @!event extractData(response)\n *   Triggered in successful requests to allow listeners to\n *   de-serialize the response body into `response.data`.\n *   @param (see AWS.Request~send)\n *   @context (see AWS.Request~send)\n *\n * @!group Completion Events\n *\n * @!event success(response)\n *   Triggered when the request completed successfully.\n *   `response.data` will contain the response data and\n *   `response.error` will be null.\n *   @param (see AWS.Request~send)\n *   @context (see AWS.Request~send)\n *\n * @!event error(error, response)\n *   Triggered when an error occurs at any point during the\n *   request. `response.error` will contain details about the error\n *   that occurred. `response.data` will be null.\n *   @param error [Error] the error object containing details about\n *     the error that occurred.\n *   @param (see AWS.Request~send)\n *   @context (see AWS.Request~send)\n *\n * @!event complete(response)\n *   Triggered whenever a request cycle completes. `response.error`\n *   should be checked, since the request may have failed.\n *   @param (see AWS.Request~send)\n *   @context (see AWS.Request~send)\n *\n * @!group HTTP Events\n *\n * @!event httpHeaders(statusCode, headers, response, statusMessage)\n *   Triggered when headers are sent by the remote server\n *   @param statusCode [Integer] the HTTP response code\n *   @param headers [map<String,String>] the response headers\n *   @param (see AWS.Request~send)\n *   @param statusMessage [String] A status message corresponding to the HTTP\n *                                 response code\n *   @context (see AWS.Request~send)\n *\n * @!event httpData(chunk, response)\n *   Triggered when data is sent by the remote server\n *   @param chunk [Buffer] the buffer data containing the next data chunk\n *     from the server\n *   @param (see AWS.Request~send)\n *   @context (see AWS.Request~send)\n *   @see AWS.EventListeners.Core.HTTP_DATA\n *\n * @!event httpUploadProgress(progress, response)\n *   Triggered when the HTTP request has uploaded more data\n *   @param progress [map] An object containing the `loaded` and `total` bytes\n *     of the request.\n *   @param (see AWS.Request~send)\n *   @context (see AWS.Request~send)\n *   @note This event will not be emitted in Node.js 0.8.x.\n *\n * @!event httpDownloadProgress(progress, response)\n *   Triggered when the HTTP request has downloaded more data\n *   @param progress [map] An object containing the `loaded` and `total` bytes\n *     of the request.\n *   @param (see AWS.Request~send)\n *   @context (see AWS.Request~send)\n *   @note This event will not be emitted in Node.js 0.8.x.\n *\n * @!event httpError(error, response)\n *   Triggered when the HTTP request failed\n *   @param error [Error] the error object that was thrown\n *   @param (see AWS.Request~send)\n *   @context (see AWS.Request~send)\n *\n * @!event httpDone(response)\n *   Triggered when the server is finished sending data\n *   @param (see AWS.Request~send)\n *   @context (see AWS.Request~send)\n *\n * @see AWS.Response\n */\n\nAWS.Request = inherit({\n  /**\n   * Creates a request for an operation on a given service with\n   * a set of input parameters.\n   *\n   * @param service [AWS.Service] the service to perform the operation on\n   * @param operation [String] the operation to perform on the service\n   * @param params [Object] parameters to send to the operation.\n   *   See the operation's documentation for the format of the\n   *   parameters.\n   */\n  constructor: function Request(service, operation, params) {\n    var endpoint = service.endpoint;\n    var region = service.config.region;\n    var customUserAgent = service.config.customUserAgent; // global endpoints sign as us-east-1\n\n    if (service.isGlobalEndpoint) region = 'us-east-1';\n    this.domain = domain && domain.active;\n    this.service = service;\n    this.operation = operation;\n    this.params = params || {};\n    this.httpRequest = new AWS.HttpRequest(endpoint, region);\n    this.httpRequest.appendToUserAgent(customUserAgent);\n    this.startTime = service.getSkewCorrectedDate();\n    this.response = new AWS.Response(this);\n    this._asm = new AcceptorStateMachine(fsm.states, 'validate');\n    this._haltHandlersOnError = false;\n    AWS.SequentialExecutor.call(this);\n    this.emit = this.emitEvent;\n  },\n\n  /**\n   * @!group Sending a Request\n   */\n\n  /**\n   * @overload send(callback = null)\n   *   Sends the request object.\n   *\n   *   @callback callback function(err, data)\n   *     If a callback is supplied, it is called when a response is returned\n   *     from the service.\n   *     @context [AWS.Request] the request object being sent.\n   *     @param err [Error] the error object returned from the request.\n   *       Set to `null` if the request is successful.\n   *     @param data [Object] the de-serialized data returned from\n   *       the request. Set to `null` if a request error occurs.\n   *   @example Sending a request with a callback\n   *     request = s3.putObject({Bucket: 'bucket', Key: 'key'});\n   *     request.send(function(err, data) { console.log(err, data); });\n   *   @example Sending a request with no callback (using event handlers)\n   *     request = s3.putObject({Bucket: 'bucket', Key: 'key'});\n   *     request.on('complete', function(response) { ... }); // register a callback\n   *     request.send();\n   */\n  send: function send(callback) {\n    if (callback) {\n      // append to user agent\n      this.httpRequest.appendToUserAgent('callback');\n      this.on('complete', function (resp) {\n        callback.call(resp, resp.error, resp.data);\n      });\n    }\n\n    this.runTo();\n    return this.response;\n  },\n\n  /**\n   * @!method  promise()\n   *   Sends the request and returns a 'thenable' promise.\n   *\n   *   Two callbacks can be provided to the `then` method on the returned promise.\n   *   The first callback will be called if the promise is fulfilled, and the second\n   *   callback will be called if the promise is rejected.\n   *   @callback fulfilledCallback function(data)\n   *     Called if the promise is fulfilled.\n   *     @param data [Object] the de-serialized data returned from the request.\n   *   @callback rejectedCallback function(error)\n   *     Called if the promise is rejected.\n   *     @param error [Error] the error object returned from the request.\n   *   @return [Promise] A promise that represents the state of the request.\n   *   @example Sending a request using promises.\n   *     var request = s3.putObject({Bucket: 'bucket', Key: 'key'});\n   *     var result = request.promise();\n   *     result.then(function(data) { ... }, function(error) { ... });\n   */\n\n  /**\n   * @api private\n   */\n  build: function build(callback) {\n    return this.runTo('send', callback);\n  },\n\n  /**\n   * @api private\n   */\n  runTo: function runTo(state, done) {\n    this._asm.runTo(state, done, this);\n\n    return this;\n  },\n\n  /**\n   * Aborts a request, emitting the error and complete events.\n   *\n   * @!macro nobrowser\n   * @example Aborting a request after sending\n   *   var params = {\n   *     Bucket: 'bucket', Key: 'key',\n   *     Body: Buffer.alloc(1024 * 1024 * 5) // 5MB payload\n   *   };\n   *   var request = s3.putObject(params);\n   *   request.send(function (err, data) {\n   *     if (err) console.log(\"Error:\", err.code, err.message);\n   *     else console.log(data);\n   *   });\n   *\n   *   // abort request in 1 second\n   *   setTimeout(request.abort.bind(request), 1000);\n   *\n   *   // prints \"Error: RequestAbortedError Request aborted by user\"\n   * @return [AWS.Request] the same request object, for chaining.\n   * @since v1.4.0\n   */\n  abort: function abort() {\n    this.removeAllListeners('validateResponse');\n    this.removeAllListeners('extractError');\n    this.on('validateResponse', function addAbortedError(resp) {\n      resp.error = AWS.util.error(new Error('Request aborted by user'), {\n        code: 'RequestAbortedError',\n        retryable: false\n      });\n    });\n\n    if (this.httpRequest.stream && !this.httpRequest.stream.didCallback) {\n      // abort HTTP stream\n      this.httpRequest.stream.abort();\n\n      if (this.httpRequest._abortCallback) {\n        this.httpRequest._abortCallback();\n      } else {\n        this.removeAllListeners('send'); // haven't sent yet, so let's not\n      }\n    }\n\n    return this;\n  },\n\n  /**\n   * Iterates over each page of results given a pageable request, calling\n   * the provided callback with each page of data. After all pages have been\n   * retrieved, the callback is called with `null` data.\n   *\n   * @note This operation can generate multiple requests to a service.\n   * @example Iterating over multiple pages of objects in an S3 bucket\n   *   var pages = 1;\n   *   s3.listObjects().eachPage(function(err, data) {\n   *     if (err) return;\n   *     console.log(\"Page\", pages++);\n   *     console.log(data);\n   *   });\n   * @example Iterating over multiple pages with an asynchronous callback\n   *   s3.listObjects(params).eachPage(function(err, data, done) {\n   *     doSomethingAsyncAndOrExpensive(function() {\n   *       // The next page of results isn't fetched until done is called\n   *       done();\n   *     });\n   *   });\n   * @callback callback function(err, data, [doneCallback])\n   *   Called with each page of resulting data from the request. If the\n   *   optional `doneCallback` is provided in the function, it must be called\n   *   when the callback is complete.\n   *\n   *   @param err [Error] an error object, if an error occurred.\n   *   @param data [Object] a single page of response data. If there is no\n   *     more data, this object will be `null`.\n   *   @param doneCallback [Function] an optional done callback. If this\n   *     argument is defined in the function declaration, it should be called\n   *     when the next page is ready to be retrieved. This is useful for\n   *     controlling serial pagination across asynchronous operations.\n   *   @return [Boolean] if the callback returns `false`, pagination will\n   *     stop.\n   *\n   * @see AWS.Request.eachItem\n   * @see AWS.Response.nextPage\n   * @since v1.4.0\n   */\n  eachPage: function eachPage(callback) {\n    // Make all callbacks async-ish\n    callback = AWS.util.fn.makeAsync(callback, 3);\n\n    function wrappedCallback(response) {\n      callback.call(response, response.error, response.data, function (result) {\n        if (result === false) return;\n\n        if (response.hasNextPage()) {\n          response.nextPage().on('complete', wrappedCallback).send();\n        } else {\n          callback.call(response, null, null, AWS.util.fn.noop);\n        }\n      });\n    }\n\n    this.on('complete', wrappedCallback).send();\n  },\n\n  /**\n   * Enumerates over individual items of a request, paging the responses if\n   * necessary.\n   *\n   * @api experimental\n   * @since v1.4.0\n   */\n  eachItem: function eachItem(callback) {\n    var self = this;\n\n    function wrappedCallback(err, data) {\n      if (err) return callback(err, null);\n      if (data === null) return callback(null, null);\n      var config = self.service.paginationConfig(self.operation);\n      var resultKey = config.resultKey;\n      if (Array.isArray(resultKey)) resultKey = resultKey[0];\n      var items = jmespath.search(data, resultKey);\n      var continueIteration = true;\n      AWS.util.arrayEach(items, function (item) {\n        continueIteration = callback(null, item);\n\n        if (continueIteration === false) {\n          return AWS.util.abort;\n        }\n      });\n      return continueIteration;\n    }\n\n    this.eachPage(wrappedCallback);\n  },\n\n  /**\n   * @return [Boolean] whether the operation can return multiple pages of\n   *   response data.\n   * @see AWS.Response.eachPage\n   * @since v1.4.0\n   */\n  isPageable: function isPageable() {\n    return this.service.paginationConfig(this.operation) ? true : false;\n  },\n\n  /**\n   * Sends the request and converts the request object into a readable stream\n   * that can be read from or piped into a writable stream.\n   *\n   * @note The data read from a readable stream contains only\n   *   the raw HTTP body contents.\n   * @example Manually reading from a stream\n   *   request.createReadStream().on('data', function(data) {\n   *     console.log(\"Got data:\", data.toString());\n   *   });\n   * @example Piping a request body into a file\n   *   var out = fs.createWriteStream('/path/to/outfile.jpg');\n   *   s3.service.getObject(params).createReadStream().pipe(out);\n   * @return [Stream] the readable stream object that can be piped\n   *   or read from (by registering 'data' event listeners).\n   * @!macro nobrowser\n   */\n  createReadStream: function createReadStream() {\n    var streams = AWS.util.stream;\n    var req = this;\n    var stream = null;\n\n    if (AWS.HttpClient.streamsApiVersion === 2) {\n      stream = new streams.PassThrough();\n      process.nextTick(function () {\n        req.send();\n      });\n    } else {\n      stream = new streams.Stream();\n      stream.readable = true;\n      stream.sent = false;\n      stream.on('newListener', function (event) {\n        if (!stream.sent && event === 'data') {\n          stream.sent = true;\n          process.nextTick(function () {\n            req.send();\n          });\n        }\n      });\n    }\n\n    this.on('error', function (err) {\n      stream.emit('error', err);\n    });\n    this.on('httpHeaders', function streamHeaders(statusCode, headers, resp) {\n      if (statusCode < 300) {\n        req.removeListener('httpData', AWS.EventListeners.Core.HTTP_DATA);\n        req.removeListener('httpError', AWS.EventListeners.Core.HTTP_ERROR);\n        req.on('httpError', function streamHttpError(error) {\n          resp.error = error;\n          resp.error.retryable = false;\n        });\n        var shouldCheckContentLength = false;\n        var expectedLen;\n\n        if (req.httpRequest.method !== 'HEAD') {\n          expectedLen = parseInt(headers['content-length'], 10);\n        }\n\n        if (expectedLen !== undefined && !isNaN(expectedLen) && expectedLen >= 0) {\n          shouldCheckContentLength = true;\n          var receivedLen = 0;\n        }\n\n        var checkContentLengthAndEmit = function checkContentLengthAndEmit() {\n          if (shouldCheckContentLength && receivedLen !== expectedLen) {\n            stream.emit('error', AWS.util.error(new Error('Stream content length mismatch. Received ' + receivedLen + ' of ' + expectedLen + ' bytes.'), {\n              code: 'StreamContentLengthMismatch'\n            }));\n          } else if (AWS.HttpClient.streamsApiVersion === 2) {\n            stream.end();\n          } else {\n            stream.emit('end');\n          }\n        };\n\n        var httpStream = resp.httpResponse.createUnbufferedStream();\n\n        if (AWS.HttpClient.streamsApiVersion === 2) {\n          if (shouldCheckContentLength) {\n            var lengthAccumulator = new streams.PassThrough();\n\n            lengthAccumulator._write = function (chunk) {\n              if (chunk && chunk.length) {\n                receivedLen += chunk.length;\n              }\n\n              return streams.PassThrough.prototype._write.apply(this, arguments);\n            };\n\n            lengthAccumulator.on('end', checkContentLengthAndEmit);\n            stream.on('error', function (err) {\n              shouldCheckContentLength = false;\n              httpStream.unpipe(lengthAccumulator);\n              lengthAccumulator.emit('end');\n              lengthAccumulator.end();\n            });\n            httpStream.pipe(lengthAccumulator).pipe(stream, {\n              end: false\n            });\n          } else {\n            httpStream.pipe(stream);\n          }\n        } else {\n          if (shouldCheckContentLength) {\n            httpStream.on('data', function (arg) {\n              if (arg && arg.length) {\n                receivedLen += arg.length;\n              }\n            });\n          }\n\n          httpStream.on('data', function (arg) {\n            stream.emit('data', arg);\n          });\n          httpStream.on('end', checkContentLengthAndEmit);\n        }\n\n        httpStream.on('error', function (err) {\n          shouldCheckContentLength = false;\n          stream.emit('error', err);\n        });\n      }\n    });\n    return stream;\n  },\n\n  /**\n   * @param [Array,Response] args This should be the response object,\n   *   or an array of args to send to the event.\n   * @api private\n   */\n  emitEvent: function emit(eventName, args, done) {\n    if (typeof args === 'function') {\n      done = args;\n      args = null;\n    }\n\n    if (!done) done = function done() {};\n    if (!args) args = this.eventParameters(eventName, this.response);\n    var origEmit = AWS.SequentialExecutor.prototype.emit;\n    origEmit.call(this, eventName, args, function (err) {\n      if (err) this.response.error = err;\n      done.call(this, err);\n    });\n  },\n\n  /**\n   * @api private\n   */\n  eventParameters: function eventParameters(eventName) {\n    switch (eventName) {\n      case 'restart':\n      case 'validate':\n      case 'sign':\n      case 'build':\n      case 'afterValidate':\n      case 'afterBuild':\n        return [this];\n\n      case 'error':\n        return [this.response.error, this.response];\n\n      default:\n        return [this.response];\n    }\n  },\n\n  /**\n   * @api private\n   */\n  presign: function presign(expires, callback) {\n    if (!callback && typeof expires === 'function') {\n      callback = expires;\n      expires = null;\n    }\n\n    return new AWS.Signers.Presign().sign(this.toGet(), expires, callback);\n  },\n\n  /**\n   * @api private\n   */\n  isPresigned: function isPresigned() {\n    return Object.prototype.hasOwnProperty.call(this.httpRequest.headers, 'presigned-expires');\n  },\n\n  /**\n   * @api private\n   */\n  toUnauthenticated: function toUnauthenticated() {\n    this._unAuthenticated = true;\n    this.removeListener('validate', AWS.EventListeners.Core.VALIDATE_CREDENTIALS);\n    this.removeListener('sign', AWS.EventListeners.Core.SIGN);\n    return this;\n  },\n\n  /**\n   * @api private\n   */\n  toGet: function toGet() {\n    if (this.service.api.protocol === 'query' || this.service.api.protocol === 'ec2') {\n      this.removeListener('build', this.buildAsGet);\n      this.addListener('build', this.buildAsGet);\n    }\n\n    return this;\n  },\n\n  /**\n   * @api private\n   */\n  buildAsGet: function buildAsGet(request) {\n    request.httpRequest.method = 'GET';\n    request.httpRequest.path = request.service.endpoint.path + '?' + request.httpRequest.body;\n    request.httpRequest.body = ''; // don't need these headers on a GET request\n\n    delete request.httpRequest.headers['Content-Length'];\n    delete request.httpRequest.headers['Content-Type'];\n  },\n\n  /**\n   * @api private\n   */\n  haltHandlersOnError: function haltHandlersOnError() {\n    this._haltHandlersOnError = true;\n  }\n});\n/**\n * @api private\n */\n\nAWS.Request.addPromisesToClass = function addPromisesToClass(PromiseDependency) {\n  this.prototype.promise = function promise() {\n    var self = this; // append to user agent\n\n    this.httpRequest.appendToUserAgent('promise');\n    return new PromiseDependency(function (resolve, reject) {\n      self.on('complete', function (resp) {\n        if (resp.error) {\n          reject(resp.error);\n        } else {\n          // define $response property so that it is not enumberable\n          // this prevents circular reference errors when stringifying the JSON object\n          resolve(Object.defineProperty(resp.data || {}, '$response', {\n            value: resp\n          }));\n        }\n      });\n      self.runTo();\n    });\n  };\n};\n/**\n * @api private\n */\n\n\nAWS.Request.deletePromisesFromClass = function deletePromisesFromClass() {\n  delete this.prototype.promise;\n};\n\nAWS.util.addPromises(AWS.Request);\nAWS.util.mixin(AWS.Request, AWS.SequentialExecutor);","var AWS = require('../core');\n\nvar inherit = AWS.util.inherit;\n/**\n * @api private\n */\n\nvar expiresHeader = 'presigned-expires';\n/**\n * @api private\n */\n\nfunction signedUrlBuilder(request) {\n  var expires = request.httpRequest.headers[expiresHeader];\n  var signerClass = request.service.getSignerClass(request);\n  delete request.httpRequest.headers['User-Agent'];\n  delete request.httpRequest.headers['X-Amz-User-Agent'];\n\n  if (signerClass === AWS.Signers.V4) {\n    if (expires > 604800) {\n      // one week expiry is invalid\n      var message = 'Presigning does not support expiry time greater ' + 'than a week with SigV4 signing.';\n      throw AWS.util.error(new Error(), {\n        code: 'InvalidExpiryTime',\n        message: message,\n        retryable: false\n      });\n    }\n\n    request.httpRequest.headers[expiresHeader] = expires;\n  } else if (signerClass === AWS.Signers.S3) {\n    var now = request.service ? request.service.getSkewCorrectedDate() : AWS.util.date.getDate();\n    request.httpRequest.headers[expiresHeader] = parseInt(AWS.util.date.unixTimestamp(now) + expires, 10).toString();\n  } else {\n    throw AWS.util.error(new Error(), {\n      message: 'Presigning only supports S3 or SigV4 signing.',\n      code: 'UnsupportedSigner',\n      retryable: false\n    });\n  }\n}\n/**\n * @api private\n */\n\n\nfunction signedUrlSigner(request) {\n  var endpoint = request.httpRequest.endpoint;\n  var parsedUrl = AWS.util.urlParse(request.httpRequest.path);\n  var queryParams = {};\n\n  if (parsedUrl.search) {\n    queryParams = AWS.util.queryStringParse(parsedUrl.search.substr(1));\n  }\n\n  var auth = request.httpRequest.headers['Authorization'].split(' ');\n\n  if (auth[0] === 'AWS') {\n    auth = auth[1].split(':');\n    queryParams['AWSAccessKeyId'] = auth[0];\n    queryParams['Signature'] = auth[1];\n    AWS.util.each(request.httpRequest.headers, function (key, value) {\n      if (key === expiresHeader) key = 'Expires';\n\n      if (key.indexOf('x-amz-meta-') === 0) {\n        // Delete existing, potentially not normalized key\n        delete queryParams[key];\n        key = key.toLowerCase();\n      }\n\n      queryParams[key] = value;\n    });\n    delete request.httpRequest.headers[expiresHeader];\n    delete queryParams['Authorization'];\n    delete queryParams['Host'];\n  } else if (auth[0] === 'AWS4-HMAC-SHA256') {\n    // SigV4 signing\n    auth.shift();\n    var rest = auth.join(' ');\n    var signature = rest.match(/Signature=(.*?)(?:,|\\s|\\r?\\n|$)/)[1];\n    queryParams['X-Amz-Signature'] = signature;\n    delete queryParams['Expires'];\n  } // build URL\n\n\n  endpoint.pathname = parsedUrl.pathname;\n  endpoint.search = AWS.util.queryParamsToString(queryParams);\n}\n/**\n * @api private\n */\n\n\nAWS.Signers.Presign = inherit({\n  /**\n   * @api private\n   */\n  sign: function sign(request, expireTime, callback) {\n    request.httpRequest.headers[expiresHeader] = expireTime || 3600;\n    request.on('build', signedUrlBuilder);\n    request.on('sign', signedUrlSigner);\n    request.removeListener('afterBuild', AWS.EventListeners.Core.SET_CONTENT_LENGTH);\n    request.removeListener('afterBuild', AWS.EventListeners.Core.COMPUTE_SHA256);\n    request.emit('beforePresign', [request]);\n\n    if (callback) {\n      request.build(function () {\n        if (this.response.error) callback(this.response.error);else {\n          callback(null, AWS.util.urlFormat(request.httpRequest.endpoint));\n        }\n      });\n    } else {\n      request.build();\n      if (request.response.error) throw request.response.error;\n      return AWS.util.urlFormat(request.httpRequest.endpoint);\n    }\n  }\n});\n/**\n * @api private\n */\n\nmodule.exports = AWS.Signers.Presign;","/*\n * Copyright 2017-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n *     http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nexport var CognitoHostedUIIdentityProvider;\n\n(function (CognitoHostedUIIdentityProvider) {\n  CognitoHostedUIIdentityProvider[\"Cognito\"] = \"COGNITO\";\n  CognitoHostedUIIdentityProvider[\"Google\"] = \"Google\";\n  CognitoHostedUIIdentityProvider[\"Facebook\"] = \"Facebook\";\n  CognitoHostedUIIdentityProvider[\"Amazon\"] = \"LoginWithAmazon\";\n})(CognitoHostedUIIdentityProvider || (CognitoHostedUIIdentityProvider = {}));\n\nexport function isFederatedSignInOptions(obj) {\n  var keys = ['provider', 'customState'];\n  return obj && !!keys.find(function (k) {\n    return obj.hasOwnProperty(k);\n  });\n}\nexport function isFederatedSignInOptionsCustom(obj) {\n  var keys = ['customProvider', 'customState'];\n  return obj && !!keys.find(function (k) {\n    return obj.hasOwnProperty(k);\n  });\n}\nexport function isCognitoHostedOpts(oauth) {\n  return oauth.redirectSignIn !== undefined;\n}\nexport var AuthErrorTypes;\n\n(function (AuthErrorTypes) {\n  AuthErrorTypes[\"NoConfig\"] = \"noConfig\";\n  AuthErrorTypes[\"MissingAuthConfig\"] = \"missingAuthConfig\";\n  AuthErrorTypes[\"EmptyUsername\"] = \"emptyUsername\";\n  AuthErrorTypes[\"InvalidUsername\"] = \"invalidUsername\";\n  AuthErrorTypes[\"EmptyPassword\"] = \"emptyPassword\";\n  AuthErrorTypes[\"EmptyCode\"] = \"emptyCode\";\n  AuthErrorTypes[\"SignUpError\"] = \"signUpError\";\n  AuthErrorTypes[\"NoMFA\"] = \"noMFA\";\n  AuthErrorTypes[\"InvalidMFA\"] = \"invalidMFA\";\n  AuthErrorTypes[\"EmptyChallengeResponse\"] = \"emptyChallengeResponse\";\n  AuthErrorTypes[\"NoUserSession\"] = \"noUserSession\";\n  AuthErrorTypes[\"Default\"] = \"default\";\n})(AuthErrorTypes || (AuthErrorTypes = {}));\n\nexport function isUsernamePasswordOpts(obj) {\n  return !!obj.username;\n}","function _classCallCheck(instance, Constructor) {\n  if (!(instance instanceof Constructor)) {\n    throw new TypeError(\"Cannot call a class as a function\");\n  }\n}\n/*!\n * Copyright 2016 Amazon.com,\n * Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Amazon Software License (the \"License\").\n * You may not use this file except in compliance with the\n * License. A copy of the License is located at\n *\n *     http://aws.amazon.com/asl/\n *\n * or in the \"license\" file accompanying this file. This file is\n * distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, express or implied. See the License\n * for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** @class */\n\n\nvar AuthenticationDetails = function () {\n  /**\n   * Constructs a new AuthenticationDetails object\n   * @param {object=} data Creation options.\n   * @param {string} data.Username User being authenticated.\n   * @param {string} data.Password Plain-text password to authenticate with.\n   * @param {(AttributeArg[])?} data.ValidationData Application extra metadata.\n   * @param {(AttributeArg[])?} data.AuthParamaters Authentication paramaters for custom auth.\n   */\n  function AuthenticationDetails(data) {\n    _classCallCheck(this, AuthenticationDetails);\n\n    var _ref = data || {},\n        ValidationData = _ref.ValidationData,\n        Username = _ref.Username,\n        Password = _ref.Password,\n        AuthParameters = _ref.AuthParameters,\n        ClientMetadata = _ref.ClientMetadata;\n\n    this.validationData = ValidationData || {};\n    this.authParameters = AuthParameters || {};\n    this.clientMetadata = ClientMetadata || {};\n    this.username = Username;\n    this.password = Password;\n  }\n  /**\n   * @returns {string} the record's username\n   */\n\n\n  AuthenticationDetails.prototype.getUsername = function getUsername() {\n    return this.username;\n  };\n  /**\n   * @returns {string} the record's password\n   */\n\n\n  AuthenticationDetails.prototype.getPassword = function getPassword() {\n    return this.password;\n  };\n  /**\n   * @returns {Array} the record's validationData\n   */\n\n\n  AuthenticationDetails.prototype.getValidationData = function getValidationData() {\n    return this.validationData;\n  };\n  /**\n   * @returns {Array} the record's authParameters\n   */\n\n\n  AuthenticationDetails.prototype.getAuthParameters = function getAuthParameters() {\n    return this.authParameters;\n  };\n  /**\n   * @returns {ClientMetadata} the clientMetadata for a Lambda trigger\n   */\n\n\n  AuthenticationDetails.prototype.getClientMetadata = function getClientMetadata() {\n    return this.clientMetadata;\n  };\n\n  return AuthenticationDetails;\n}();\n\nexport default AuthenticationDetails;","import \"core-js/modules/es.array.reduce.js\";\n// A small implementation of BigInteger based on http://www-cs-students.stanford.edu/~tjw/jsbn/\n//\n// All public methods have been removed except the following:\n//   new BigInteger(a, b) (only radix 2, 4, 8, 16 and 32 supported)\n//   toString (only radix 2, 4, 8, 16 and 32 supported)\n//   negate\n//   abs\n//   compareTo\n//   bitLength\n//   mod\n//   equals\n//   add\n//   subtract\n//   multiply\n//   divide\n//   modPow\nexport default BigInteger;\n/*\n * Copyright (c) 2003-2005  Tom Wu\n * All Rights Reserved.\n *\n * Permission is hereby granted, free of charge, to any person obtaining\n * a copy of this software and associated documentation files (the\n * \"Software\"), to deal in the Software without restriction, including\n * without limitation the rights to use, copy, modify, merge, publish,\n * distribute, sublicense, and/or sell copies of the Software, and to\n * permit persons to whom the Software is furnished to do so, subject to\n * the following conditions:\n *\n * The above copyright notice and this permission notice shall be\n * included in all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS-IS\" AND WITHOUT WARRANTY OF ANY KIND,\n * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY\n * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.\n *\n * IN NO EVENT SHALL TOM WU BE LIABLE FOR ANY SPECIAL, INCIDENTAL,\n * INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER\n * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR NOT ADVISED OF\n * THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF LIABILITY, ARISING OUT\n * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.\n *\n * In addition, the following condition applies:\n *\n * All redistributions must retain an intact copy of this copyright notice\n * and disclaimer.\n */\n// (public) Constructor\n\nfunction BigInteger(a, b) {\n  if (a != null) this.fromString(a, b);\n} // return new, unset BigInteger\n\n\nfunction nbi() {\n  return new BigInteger(null);\n} // Bits per digit\n\n\nvar dbits; // JavaScript engine analysis\n\nvar canary = 0xdeadbeefcafe;\nvar j_lm = (canary & 0xffffff) == 0xefcafe; // am: Compute w_j += (x*this_i), propagate carries,\n// c is initial carry, returns final carry.\n// c < 3*dvalue, x < 2*dvalue, this_i < dvalue\n// We need to select the fastest one that works in this environment.\n// am1: use a single mult and divide to get the high bits,\n// max digit bits should be 26 because\n// max internal value = 2*dvalue^2-2*dvalue (< 2^53)\n\nfunction am1(i, x, w, j, c, n) {\n  while (--n >= 0) {\n    var v = x * this[i++] + w[j] + c;\n    c = Math.floor(v / 0x4000000);\n    w[j++] = v & 0x3ffffff;\n  }\n\n  return c;\n} // am2 avoids a big mult-and-extract completely.\n// Max digit bits should be <= 30 because we do bitwise ops\n// on values up to 2*hdvalue^2-hdvalue-1 (< 2^31)\n\n\nfunction am2(i, x, w, j, c, n) {\n  var xl = x & 0x7fff,\n      xh = x >> 15;\n\n  while (--n >= 0) {\n    var l = this[i] & 0x7fff;\n    var h = this[i++] >> 15;\n    var m = xh * l + h * xl;\n    l = xl * l + ((m & 0x7fff) << 15) + w[j] + (c & 0x3fffffff);\n    c = (l >>> 30) + (m >>> 15) + xh * h + (c >>> 30);\n    w[j++] = l & 0x3fffffff;\n  }\n\n  return c;\n} // Alternately, set max digit bits to 28 since some\n// browsers slow down when dealing with 32-bit numbers.\n\n\nfunction am3(i, x, w, j, c, n) {\n  var xl = x & 0x3fff,\n      xh = x >> 14;\n\n  while (--n >= 0) {\n    var l = this[i] & 0x3fff;\n    var h = this[i++] >> 14;\n    var m = xh * l + h * xl;\n    l = xl * l + ((m & 0x3fff) << 14) + w[j] + c;\n    c = (l >> 28) + (m >> 14) + xh * h;\n    w[j++] = l & 0xfffffff;\n  }\n\n  return c;\n}\n\nvar inBrowser = typeof navigator !== 'undefined';\n\nif (inBrowser && j_lm && navigator.appName == 'Microsoft Internet Explorer') {\n  BigInteger.prototype.am = am2;\n  dbits = 30;\n} else if (inBrowser && j_lm && navigator.appName != 'Netscape') {\n  BigInteger.prototype.am = am1;\n  dbits = 26;\n} else {\n  // Mozilla/Netscape seems to prefer am3\n  BigInteger.prototype.am = am3;\n  dbits = 28;\n}\n\nBigInteger.prototype.DB = dbits;\nBigInteger.prototype.DM = (1 << dbits) - 1;\nBigInteger.prototype.DV = 1 << dbits;\nvar BI_FP = 52;\nBigInteger.prototype.FV = Math.pow(2, BI_FP);\nBigInteger.prototype.F1 = BI_FP - dbits;\nBigInteger.prototype.F2 = 2 * dbits - BI_FP; // Digit conversions\n\nvar BI_RM = '0123456789abcdefghijklmnopqrstuvwxyz';\nvar BI_RC = new Array();\nvar rr, vv;\nrr = '0'.charCodeAt(0);\n\nfor (vv = 0; vv <= 9; ++vv) {\n  BI_RC[rr++] = vv;\n}\n\nrr = 'a'.charCodeAt(0);\n\nfor (vv = 10; vv < 36; ++vv) {\n  BI_RC[rr++] = vv;\n}\n\nrr = 'A'.charCodeAt(0);\n\nfor (vv = 10; vv < 36; ++vv) {\n  BI_RC[rr++] = vv;\n}\n\nfunction int2char(n) {\n  return BI_RM.charAt(n);\n}\n\nfunction intAt(s, i) {\n  var c = BI_RC[s.charCodeAt(i)];\n  return c == null ? -1 : c;\n} // (protected) copy this to r\n\n\nfunction bnpCopyTo(r) {\n  for (var i = this.t - 1; i >= 0; --i) {\n    r[i] = this[i];\n  }\n\n  r.t = this.t;\n  r.s = this.s;\n} // (protected) set from integer value x, -DV <= x < DV\n\n\nfunction bnpFromInt(x) {\n  this.t = 1;\n  this.s = x < 0 ? -1 : 0;\n  if (x > 0) this[0] = x;else if (x < -1) this[0] = x + this.DV;else this.t = 0;\n} // return bigint initialized to value\n\n\nfunction nbv(i) {\n  var r = nbi();\n  r.fromInt(i);\n  return r;\n} // (protected) set from string and radix\n\n\nfunction bnpFromString(s, b) {\n  var k;\n  if (b == 16) k = 4;else if (b == 8) k = 3;else if (b == 2) k = 1;else if (b == 32) k = 5;else if (b == 4) k = 2;else throw new Error('Only radix 2, 4, 8, 16, 32 are supported');\n  this.t = 0;\n  this.s = 0;\n  var i = s.length,\n      mi = false,\n      sh = 0;\n\n  while (--i >= 0) {\n    var x = intAt(s, i);\n\n    if (x < 0) {\n      if (s.charAt(i) == '-') mi = true;\n      continue;\n    }\n\n    mi = false;\n    if (sh == 0) this[this.t++] = x;else if (sh + k > this.DB) {\n      this[this.t - 1] |= (x & (1 << this.DB - sh) - 1) << sh;\n      this[this.t++] = x >> this.DB - sh;\n    } else this[this.t - 1] |= x << sh;\n    sh += k;\n    if (sh >= this.DB) sh -= this.DB;\n  }\n\n  this.clamp();\n  if (mi) BigInteger.ZERO.subTo(this, this);\n} // (protected) clamp off excess high words\n\n\nfunction bnpClamp() {\n  var c = this.s & this.DM;\n\n  while (this.t > 0 && this[this.t - 1] == c) {\n    --this.t;\n  }\n} // (public) return string representation in given radix\n\n\nfunction bnToString(b) {\n  if (this.s < 0) return '-' + this.negate().toString();\n  var k;\n  if (b == 16) k = 4;else if (b == 8) k = 3;else if (b == 2) k = 1;else if (b == 32) k = 5;else if (b == 4) k = 2;else throw new Error('Only radix 2, 4, 8, 16, 32 are supported');\n  var km = (1 << k) - 1,\n      d,\n      m = false,\n      r = '',\n      i = this.t;\n  var p = this.DB - i * this.DB % k;\n\n  if (i-- > 0) {\n    if (p < this.DB && (d = this[i] >> p) > 0) {\n      m = true;\n      r = int2char(d);\n    }\n\n    while (i >= 0) {\n      if (p < k) {\n        d = (this[i] & (1 << p) - 1) << k - p;\n        d |= this[--i] >> (p += this.DB - k);\n      } else {\n        d = this[i] >> (p -= k) & km;\n\n        if (p <= 0) {\n          p += this.DB;\n          --i;\n        }\n      }\n\n      if (d > 0) m = true;\n      if (m) r += int2char(d);\n    }\n  }\n\n  return m ? r : '0';\n} // (public) -this\n\n\nfunction bnNegate() {\n  var r = nbi();\n  BigInteger.ZERO.subTo(this, r);\n  return r;\n} // (public) |this|\n\n\nfunction bnAbs() {\n  return this.s < 0 ? this.negate() : this;\n} // (public) return + if this > a, - if this < a, 0 if equal\n\n\nfunction bnCompareTo(a) {\n  var r = this.s - a.s;\n  if (r != 0) return r;\n  var i = this.t;\n  r = i - a.t;\n  if (r != 0) return this.s < 0 ? -r : r;\n\n  while (--i >= 0) {\n    if ((r = this[i] - a[i]) != 0) return r;\n  }\n\n  return 0;\n} // returns bit length of the integer x\n\n\nfunction nbits(x) {\n  var r = 1,\n      t;\n\n  if ((t = x >>> 16) != 0) {\n    x = t;\n    r += 16;\n  }\n\n  if ((t = x >> 8) != 0) {\n    x = t;\n    r += 8;\n  }\n\n  if ((t = x >> 4) != 0) {\n    x = t;\n    r += 4;\n  }\n\n  if ((t = x >> 2) != 0) {\n    x = t;\n    r += 2;\n  }\n\n  if ((t = x >> 1) != 0) {\n    x = t;\n    r += 1;\n  }\n\n  return r;\n} // (public) return the number of bits in \"this\"\n\n\nfunction bnBitLength() {\n  if (this.t <= 0) return 0;\n  return this.DB * (this.t - 1) + nbits(this[this.t - 1] ^ this.s & this.DM);\n} // (protected) r = this << n*DB\n\n\nfunction bnpDLShiftTo(n, r) {\n  var i;\n\n  for (i = this.t - 1; i >= 0; --i) {\n    r[i + n] = this[i];\n  }\n\n  for (i = n - 1; i >= 0; --i) {\n    r[i] = 0;\n  }\n\n  r.t = this.t + n;\n  r.s = this.s;\n} // (protected) r = this >> n*DB\n\n\nfunction bnpDRShiftTo(n, r) {\n  for (var i = n; i < this.t; ++i) {\n    r[i - n] = this[i];\n  }\n\n  r.t = Math.max(this.t - n, 0);\n  r.s = this.s;\n} // (protected) r = this << n\n\n\nfunction bnpLShiftTo(n, r) {\n  var bs = n % this.DB;\n  var cbs = this.DB - bs;\n  var bm = (1 << cbs) - 1;\n  var ds = Math.floor(n / this.DB),\n      c = this.s << bs & this.DM,\n      i;\n\n  for (i = this.t - 1; i >= 0; --i) {\n    r[i + ds + 1] = this[i] >> cbs | c;\n    c = (this[i] & bm) << bs;\n  }\n\n  for (i = ds - 1; i >= 0; --i) {\n    r[i] = 0;\n  }\n\n  r[ds] = c;\n  r.t = this.t + ds + 1;\n  r.s = this.s;\n  r.clamp();\n} // (protected) r = this >> n\n\n\nfunction bnpRShiftTo(n, r) {\n  r.s = this.s;\n  var ds = Math.floor(n / this.DB);\n\n  if (ds >= this.t) {\n    r.t = 0;\n    return;\n  }\n\n  var bs = n % this.DB;\n  var cbs = this.DB - bs;\n  var bm = (1 << bs) - 1;\n  r[0] = this[ds] >> bs;\n\n  for (var i = ds + 1; i < this.t; ++i) {\n    r[i - ds - 1] |= (this[i] & bm) << cbs;\n    r[i - ds] = this[i] >> bs;\n  }\n\n  if (bs > 0) r[this.t - ds - 1] |= (this.s & bm) << cbs;\n  r.t = this.t - ds;\n  r.clamp();\n} // (protected) r = this - a\n\n\nfunction bnpSubTo(a, r) {\n  var i = 0,\n      c = 0,\n      m = Math.min(a.t, this.t);\n\n  while (i < m) {\n    c += this[i] - a[i];\n    r[i++] = c & this.DM;\n    c >>= this.DB;\n  }\n\n  if (a.t < this.t) {\n    c -= a.s;\n\n    while (i < this.t) {\n      c += this[i];\n      r[i++] = c & this.DM;\n      c >>= this.DB;\n    }\n\n    c += this.s;\n  } else {\n    c += this.s;\n\n    while (i < a.t) {\n      c -= a[i];\n      r[i++] = c & this.DM;\n      c >>= this.DB;\n    }\n\n    c -= a.s;\n  }\n\n  r.s = c < 0 ? -1 : 0;\n  if (c < -1) r[i++] = this.DV + c;else if (c > 0) r[i++] = c;\n  r.t = i;\n  r.clamp();\n} // (protected) r = this * a, r != this,a (HAC 14.12)\n// \"this\" should be the larger one if appropriate.\n\n\nfunction bnpMultiplyTo(a, r) {\n  var x = this.abs(),\n      y = a.abs();\n  var i = x.t;\n  r.t = i + y.t;\n\n  while (--i >= 0) {\n    r[i] = 0;\n  }\n\n  for (i = 0; i < y.t; ++i) {\n    r[i + x.t] = x.am(0, y[i], r, i, 0, x.t);\n  }\n\n  r.s = 0;\n  r.clamp();\n  if (this.s != a.s) BigInteger.ZERO.subTo(r, r);\n} // (protected) r = this^2, r != this (HAC 14.16)\n\n\nfunction bnpSquareTo(r) {\n  var x = this.abs();\n  var i = r.t = 2 * x.t;\n\n  while (--i >= 0) {\n    r[i] = 0;\n  }\n\n  for (i = 0; i < x.t - 1; ++i) {\n    var c = x.am(i, x[i], r, 2 * i, 0, 1);\n\n    if ((r[i + x.t] += x.am(i + 1, 2 * x[i], r, 2 * i + 1, c, x.t - i - 1)) >= x.DV) {\n      r[i + x.t] -= x.DV;\n      r[i + x.t + 1] = 1;\n    }\n  }\n\n  if (r.t > 0) r[r.t - 1] += x.am(i, x[i], r, 2 * i, 0, 1);\n  r.s = 0;\n  r.clamp();\n} // (protected) divide this by m, quotient and remainder to q, r (HAC 14.20)\n// r != q, this != m.  q or r may be null.\n\n\nfunction bnpDivRemTo(m, q, r) {\n  var pm = m.abs();\n  if (pm.t <= 0) return;\n  var pt = this.abs();\n\n  if (pt.t < pm.t) {\n    if (q != null) q.fromInt(0);\n    if (r != null) this.copyTo(r);\n    return;\n  }\n\n  if (r == null) r = nbi();\n  var y = nbi(),\n      ts = this.s,\n      ms = m.s;\n  var nsh = this.DB - nbits(pm[pm.t - 1]); // normalize modulus\n\n  if (nsh > 0) {\n    pm.lShiftTo(nsh, y);\n    pt.lShiftTo(nsh, r);\n  } else {\n    pm.copyTo(y);\n    pt.copyTo(r);\n  }\n\n  var ys = y.t;\n  var y0 = y[ys - 1];\n  if (y0 == 0) return;\n  var yt = y0 * (1 << this.F1) + (ys > 1 ? y[ys - 2] >> this.F2 : 0);\n  var d1 = this.FV / yt,\n      d2 = (1 << this.F1) / yt,\n      e = 1 << this.F2;\n  var i = r.t,\n      j = i - ys,\n      t = q == null ? nbi() : q;\n  y.dlShiftTo(j, t);\n\n  if (r.compareTo(t) >= 0) {\n    r[r.t++] = 1;\n    r.subTo(t, r);\n  }\n\n  BigInteger.ONE.dlShiftTo(ys, t);\n  t.subTo(y, y); // \"negative\" y so we can replace sub with am later\n\n  while (y.t < ys) {\n    y[y.t++] = 0;\n  }\n\n  while (--j >= 0) {\n    // Estimate quotient digit\n    var qd = r[--i] == y0 ? this.DM : Math.floor(r[i] * d1 + (r[i - 1] + e) * d2);\n\n    if ((r[i] += y.am(0, qd, r, j, 0, ys)) < qd) {\n      // Try it out\n      y.dlShiftTo(j, t);\n      r.subTo(t, r);\n\n      while (r[i] < --qd) {\n        r.subTo(t, r);\n      }\n    }\n  }\n\n  if (q != null) {\n    r.drShiftTo(ys, q);\n    if (ts != ms) BigInteger.ZERO.subTo(q, q);\n  }\n\n  r.t = ys;\n  r.clamp();\n  if (nsh > 0) r.rShiftTo(nsh, r); // Denormalize remainder\n\n  if (ts < 0) BigInteger.ZERO.subTo(r, r);\n} // (public) this mod a\n\n\nfunction bnMod(a) {\n  var r = nbi();\n  this.abs().divRemTo(a, null, r);\n  if (this.s < 0 && r.compareTo(BigInteger.ZERO) > 0) a.subTo(r, r);\n  return r;\n} // (protected) return \"-1/this % 2^DB\"; useful for Mont. reduction\n// justification:\n//         xy == 1 (mod m)\n//         xy =  1+km\n//   xy(2-xy) = (1+km)(1-km)\n// x[y(2-xy)] = 1-k^2m^2\n// x[y(2-xy)] == 1 (mod m^2)\n// if y is 1/x mod m, then y(2-xy) is 1/x mod m^2\n// should reduce x and y(2-xy) by m^2 at each step to keep size bounded.\n// JS multiply \"overflows\" differently from C/C++, so care is needed here.\n\n\nfunction bnpInvDigit() {\n  if (this.t < 1) return 0;\n  var x = this[0];\n  if ((x & 1) == 0) return 0;\n  var y = x & 3; // y == 1/x mod 2^2\n\n  y = y * (2 - (x & 0xf) * y) & 0xf; // y == 1/x mod 2^4\n\n  y = y * (2 - (x & 0xff) * y) & 0xff; // y == 1/x mod 2^8\n\n  y = y * (2 - ((x & 0xffff) * y & 0xffff)) & 0xffff; // y == 1/x mod 2^16\n  // last step - calculate inverse mod DV directly;\n  // assumes 16 < DB <= 32 and assumes ability to handle 48-bit ints\n\n  y = y * (2 - x * y % this.DV) % this.DV; // y == 1/x mod 2^dbits\n  // we really want the negative inverse, and -DV < y < DV\n\n  return y > 0 ? this.DV - y : -y;\n}\n\nfunction bnEquals(a) {\n  return this.compareTo(a) == 0;\n} // (protected) r = this + a\n\n\nfunction bnpAddTo(a, r) {\n  var i = 0,\n      c = 0,\n      m = Math.min(a.t, this.t);\n\n  while (i < m) {\n    c += this[i] + a[i];\n    r[i++] = c & this.DM;\n    c >>= this.DB;\n  }\n\n  if (a.t < this.t) {\n    c += a.s;\n\n    while (i < this.t) {\n      c += this[i];\n      r[i++] = c & this.DM;\n      c >>= this.DB;\n    }\n\n    c += this.s;\n  } else {\n    c += this.s;\n\n    while (i < a.t) {\n      c += a[i];\n      r[i++] = c & this.DM;\n      c >>= this.DB;\n    }\n\n    c += a.s;\n  }\n\n  r.s = c < 0 ? -1 : 0;\n  if (c > 0) r[i++] = c;else if (c < -1) r[i++] = this.DV + c;\n  r.t = i;\n  r.clamp();\n} // (public) this + a\n\n\nfunction bnAdd(a) {\n  var r = nbi();\n  this.addTo(a, r);\n  return r;\n} // (public) this - a\n\n\nfunction bnSubtract(a) {\n  var r = nbi();\n  this.subTo(a, r);\n  return r;\n} // (public) this * a\n\n\nfunction bnMultiply(a) {\n  var r = nbi();\n  this.multiplyTo(a, r);\n  return r;\n} // (public) this / a\n\n\nfunction bnDivide(a) {\n  var r = nbi();\n  this.divRemTo(a, r, null);\n  return r;\n} // Montgomery reduction\n\n\nfunction Montgomery(m) {\n  this.m = m;\n  this.mp = m.invDigit();\n  this.mpl = this.mp & 0x7fff;\n  this.mph = this.mp >> 15;\n  this.um = (1 << m.DB - 15) - 1;\n  this.mt2 = 2 * m.t;\n} // xR mod m\n\n\nfunction montConvert(x) {\n  var r = nbi();\n  x.abs().dlShiftTo(this.m.t, r);\n  r.divRemTo(this.m, null, r);\n  if (x.s < 0 && r.compareTo(BigInteger.ZERO) > 0) this.m.subTo(r, r);\n  return r;\n} // x/R mod m\n\n\nfunction montRevert(x) {\n  var r = nbi();\n  x.copyTo(r);\n  this.reduce(r);\n  return r;\n} // x = x/R mod m (HAC 14.32)\n\n\nfunction montReduce(x) {\n  while (x.t <= this.mt2) {\n    // pad x so am has enough room later\n    x[x.t++] = 0;\n  }\n\n  for (var i = 0; i < this.m.t; ++i) {\n    // faster way of calculating u0 = x[i]*mp mod DV\n    var j = x[i] & 0x7fff;\n    var u0 = j * this.mpl + ((j * this.mph + (x[i] >> 15) * this.mpl & this.um) << 15) & x.DM; // use am to combine the multiply-shift-add into one call\n\n    j = i + this.m.t;\n    x[j] += this.m.am(0, u0, x, i, 0, this.m.t); // propagate carry\n\n    while (x[j] >= x.DV) {\n      x[j] -= x.DV;\n      x[++j]++;\n    }\n  }\n\n  x.clamp();\n  x.drShiftTo(this.m.t, x);\n  if (x.compareTo(this.m) >= 0) x.subTo(this.m, x);\n} // r = \"x^2/R mod m\"; x != r\n\n\nfunction montSqrTo(x, r) {\n  x.squareTo(r);\n  this.reduce(r);\n} // r = \"xy/R mod m\"; x,y != r\n\n\nfunction montMulTo(x, y, r) {\n  x.multiplyTo(y, r);\n  this.reduce(r);\n}\n\nMontgomery.prototype.convert = montConvert;\nMontgomery.prototype.revert = montRevert;\nMontgomery.prototype.reduce = montReduce;\nMontgomery.prototype.mulTo = montMulTo;\nMontgomery.prototype.sqrTo = montSqrTo; // (public) this^e % m (HAC 14.85)\n\nfunction bnModPow(e, m, callback) {\n  var i = e.bitLength(),\n      k,\n      r = nbv(1),\n      z = new Montgomery(m);\n  if (i <= 0) return r;else if (i < 18) k = 1;else if (i < 48) k = 3;else if (i < 144) k = 4;else if (i < 768) k = 5;else k = 6; // precomputation\n\n  var g = new Array(),\n      n = 3,\n      k1 = k - 1,\n      km = (1 << k) - 1;\n  g[1] = z.convert(this);\n\n  if (k > 1) {\n    var g2 = nbi();\n    z.sqrTo(g[1], g2);\n\n    while (n <= km) {\n      g[n] = nbi();\n      z.mulTo(g2, g[n - 2], g[n]);\n      n += 2;\n    }\n  }\n\n  var j = e.t - 1,\n      w,\n      is1 = true,\n      r2 = nbi(),\n      t;\n  i = nbits(e[j]) - 1;\n\n  while (j >= 0) {\n    if (i >= k1) w = e[j] >> i - k1 & km;else {\n      w = (e[j] & (1 << i + 1) - 1) << k1 - i;\n      if (j > 0) w |= e[j - 1] >> this.DB + i - k1;\n    }\n    n = k;\n\n    while ((w & 1) == 0) {\n      w >>= 1;\n      --n;\n    }\n\n    if ((i -= n) < 0) {\n      i += this.DB;\n      --j;\n    }\n\n    if (is1) {\n      // ret == 1, don't bother squaring or multiplying it\n      g[w].copyTo(r);\n      is1 = false;\n    } else {\n      while (n > 1) {\n        z.sqrTo(r, r2);\n        z.sqrTo(r2, r);\n        n -= 2;\n      }\n\n      if (n > 0) z.sqrTo(r, r2);else {\n        t = r;\n        r = r2;\n        r2 = t;\n      }\n      z.mulTo(r2, g[w], r);\n    }\n\n    while (j >= 0 && (e[j] & 1 << i) == 0) {\n      z.sqrTo(r, r2);\n      t = r;\n      r = r2;\n      r2 = t;\n\n      if (--i < 0) {\n        i = this.DB - 1;\n        --j;\n      }\n    }\n  }\n\n  var result = z.revert(r);\n  callback(null, result);\n  return result;\n} // protected\n\n\nBigInteger.prototype.copyTo = bnpCopyTo;\nBigInteger.prototype.fromInt = bnpFromInt;\nBigInteger.prototype.fromString = bnpFromString;\nBigInteger.prototype.clamp = bnpClamp;\nBigInteger.prototype.dlShiftTo = bnpDLShiftTo;\nBigInteger.prototype.drShiftTo = bnpDRShiftTo;\nBigInteger.prototype.lShiftTo = bnpLShiftTo;\nBigInteger.prototype.rShiftTo = bnpRShiftTo;\nBigInteger.prototype.subTo = bnpSubTo;\nBigInteger.prototype.multiplyTo = bnpMultiplyTo;\nBigInteger.prototype.squareTo = bnpSquareTo;\nBigInteger.prototype.divRemTo = bnpDivRemTo;\nBigInteger.prototype.invDigit = bnpInvDigit;\nBigInteger.prototype.addTo = bnpAddTo; // public\n\nBigInteger.prototype.toString = bnToString;\nBigInteger.prototype.negate = bnNegate;\nBigInteger.prototype.abs = bnAbs;\nBigInteger.prototype.compareTo = bnCompareTo;\nBigInteger.prototype.bitLength = bnBitLength;\nBigInteger.prototype.mod = bnMod;\nBigInteger.prototype.equals = bnEquals;\nBigInteger.prototype.add = bnAdd;\nBigInteger.prototype.subtract = bnSubtract;\nBigInteger.prototype.multiply = bnMultiply;\nBigInteger.prototype.divide = bnDivide;\nBigInteger.prototype.modPow = bnModPow; // \"constants\"\n\nBigInteger.ZERO = nbv(0);\nBigInteger.ONE = nbv(1);","function _classCallCheck(instance, Constructor) {\n  if (!(instance instanceof Constructor)) {\n    throw new TypeError(\"Cannot call a class as a function\");\n  }\n}\n/*!\n * Copyright 2016 Amazon.com,\n * Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Amazon Software License (the \"License\").\n * You may not use this file except in compliance with the\n * License. A copy of the License is located at\n *\n *     http://aws.amazon.com/asl/\n *\n * or in the \"license\" file accompanying this file. This file is\n * distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, express or implied. See the License\n * for the specific language governing permissions and\n * limitations under the License.\n */\n\n\nimport { Buffer } from 'buffer/';\nimport CryptoJS from 'crypto-js/core';\nimport 'crypto-js/lib-typedarrays'; // necessary for crypto js\n\nimport SHA256 from 'crypto-js/sha256';\nimport HmacSHA256 from 'crypto-js/hmac-sha256';\n\nvar randomBytes = function randomBytes(nBytes) {\n  return Buffer.from(CryptoJS.lib.WordArray.random(nBytes).toString(), 'hex');\n};\n\nimport BigInteger from './BigInteger';\nvar initN = 'FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1' + '29024E088A67CC74020BBEA63B139B22514A08798E3404DD' + 'EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245' + 'E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED' + 'EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3D' + 'C2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F' + '83655D23DCA3AD961C62F356208552BB9ED529077096966D' + '670C354E4ABC9804F1746C08CA18217C32905E462E36CE3B' + 'E39E772C180E86039B2783A2EC07A28FB5C55DF06F4C52C9' + 'DE2BCBF6955817183995497CEA956AE515D2261898FA0510' + '15728E5A8AAAC42DAD33170D04507A33A85521ABDF1CBA64' + 'ECFB850458DBEF0A8AEA71575D060C7DB3970F85A6E1E4C7' + 'ABF5AE8CDB0933D71E8C94E04A25619DCEE3D2261AD2EE6B' + 'F12FFA06D98A0864D87602733EC86A64521F2B18177B200C' + 'BBE117577A615D6C770988C0BAD946E208E24FA074E5AB31' + '43DB5BFCE0FD108E4B82D120A93AD2CAFFFFFFFFFFFFFFFF';\nvar newPasswordRequiredChallengeUserAttributePrefix = 'userAttributes.';\n/** @class */\n\nvar AuthenticationHelper = function () {\n  /**\n   * Constructs a new AuthenticationHelper object\n   * @param {string} PoolName Cognito user pool name.\n   */\n  function AuthenticationHelper(PoolName) {\n    _classCallCheck(this, AuthenticationHelper);\n\n    this.N = new BigInteger(initN, 16);\n    this.g = new BigInteger('2', 16);\n    this.k = new BigInteger(this.hexHash('00' + this.N.toString(16) + '0' + this.g.toString(16)), 16);\n    this.smallAValue = this.generateRandomSmallA();\n    this.getLargeAValue(function () {});\n    this.infoBits = Buffer.from('Caldera Derived Key', 'utf8');\n    this.poolName = PoolName;\n  }\n  /**\n   * @returns {BigInteger} small A, a random number\n   */\n\n\n  AuthenticationHelper.prototype.getSmallAValue = function getSmallAValue() {\n    return this.smallAValue;\n  };\n  /**\n   * @param {nodeCallback<BigInteger>} callback Called with (err, largeAValue)\n   * @returns {void}\n   */\n\n\n  AuthenticationHelper.prototype.getLargeAValue = function getLargeAValue(callback) {\n    var _this = this;\n\n    if (this.largeAValue) {\n      callback(null, this.largeAValue);\n    } else {\n      this.calculateA(this.smallAValue, function (err, largeAValue) {\n        if (err) {\n          callback(err, null);\n        }\n\n        _this.largeAValue = largeAValue;\n        callback(null, _this.largeAValue);\n      });\n    }\n  };\n  /**\n   * helper function to generate a random big integer\n   * @returns {BigInteger} a random value.\n   * @private\n   */\n\n\n  AuthenticationHelper.prototype.generateRandomSmallA = function generateRandomSmallA() {\n    var hexRandom = randomBytes(128).toString('hex');\n    var randomBigInt = new BigInteger(hexRandom, 16);\n    var smallABigInt = randomBigInt.mod(this.N);\n    return smallABigInt;\n  };\n  /**\n   * helper function to generate a random string\n   * @returns {string} a random value.\n   * @private\n   */\n\n\n  AuthenticationHelper.prototype.generateRandomString = function generateRandomString() {\n    return randomBytes(40).toString('base64');\n  };\n  /**\n   * @returns {string} Generated random value included in password hash.\n   */\n\n\n  AuthenticationHelper.prototype.getRandomPassword = function getRandomPassword() {\n    return this.randomPassword;\n  };\n  /**\n   * @returns {string} Generated random value included in devices hash.\n   */\n\n\n  AuthenticationHelper.prototype.getSaltDevices = function getSaltDevices() {\n    return this.SaltToHashDevices;\n  };\n  /**\n   * @returns {string} Value used to verify devices.\n   */\n\n\n  AuthenticationHelper.prototype.getVerifierDevices = function getVerifierDevices() {\n    return this.verifierDevices;\n  };\n  /**\n   * Generate salts and compute verifier.\n   * @param {string} deviceGroupKey Devices to generate verifier for.\n   * @param {string} username User to generate verifier for.\n   * @param {nodeCallback<null>} callback Called with (err, null)\n   * @returns {void}\n   */\n\n\n  AuthenticationHelper.prototype.generateHashDevice = function generateHashDevice(deviceGroupKey, username, callback) {\n    var _this2 = this;\n\n    this.randomPassword = this.generateRandomString();\n    var combinedString = '' + deviceGroupKey + username + ':' + this.randomPassword;\n    var hashedString = this.hash(combinedString);\n    var hexRandom = randomBytes(16).toString('hex');\n    this.SaltToHashDevices = this.padHex(new BigInteger(hexRandom, 16));\n    this.g.modPow(new BigInteger(this.hexHash(this.SaltToHashDevices + hashedString), 16), this.N, function (err, verifierDevicesNotPadded) {\n      if (err) {\n        callback(err, null);\n      }\n\n      _this2.verifierDevices = _this2.padHex(verifierDevicesNotPadded);\n      callback(null, null);\n    });\n  };\n  /**\n   * Calculate the client's public value A = g^a%N\n   * with the generated random number a\n   * @param {BigInteger} a Randomly generated small A.\n   * @param {nodeCallback<BigInteger>} callback Called with (err, largeAValue)\n   * @returns {void}\n   * @private\n   */\n\n\n  AuthenticationHelper.prototype.calculateA = function calculateA(a, callback) {\n    var _this3 = this;\n\n    this.g.modPow(a, this.N, function (err, A) {\n      if (err) {\n        callback(err, null);\n      }\n\n      if (A.mod(_this3.N).equals(BigInteger.ZERO)) {\n        callback(new Error('Illegal paramater. A mod N cannot be 0.'), null);\n      }\n\n      callback(null, A);\n    });\n  };\n  /**\n   * Calculate the client's value U which is the hash of A and B\n   * @param {BigInteger} A Large A value.\n   * @param {BigInteger} B Server B value.\n   * @returns {BigInteger} Computed U value.\n   * @private\n   */\n\n\n  AuthenticationHelper.prototype.calculateU = function calculateU(A, B) {\n    this.UHexHash = this.hexHash(this.padHex(A) + this.padHex(B));\n    var finalU = new BigInteger(this.UHexHash, 16);\n    return finalU;\n  };\n  /**\n   * Calculate a hash from a bitArray\n   * @param {Buffer} buf Value to hash.\n   * @returns {String} Hex-encoded hash.\n   * @private\n   */\n\n\n  AuthenticationHelper.prototype.hash = function hash(buf) {\n    var str = buf instanceof Buffer ? CryptoJS.lib.WordArray.create(buf) : buf;\n    var hashHex = SHA256(str).toString();\n    return new Array(64 - hashHex.length).join('0') + hashHex;\n  };\n  /**\n   * Calculate a hash from a hex string\n   * @param {String} hexStr Value to hash.\n   * @returns {String} Hex-encoded hash.\n   * @private\n   */\n\n\n  AuthenticationHelper.prototype.hexHash = function hexHash(hexStr) {\n    return this.hash(Buffer.from(hexStr, 'hex'));\n  };\n  /**\n   * Standard hkdf algorithm\n   * @param {Buffer} ikm Input key material.\n   * @param {Buffer} salt Salt value.\n   * @returns {Buffer} Strong key material.\n   * @private\n   */\n\n\n  AuthenticationHelper.prototype.computehkdf = function computehkdf(ikm, salt) {\n    var infoBitsWordArray = CryptoJS.lib.WordArray.create(Buffer.concat([this.infoBits, Buffer.from(String.fromCharCode(1), 'utf8')]));\n    var ikmWordArray = ikm instanceof Buffer ? CryptoJS.lib.WordArray.create(ikm) : ikm;\n    var saltWordArray = salt instanceof Buffer ? CryptoJS.lib.WordArray.create(salt) : salt;\n    var prk = HmacSHA256(ikmWordArray, saltWordArray);\n    var hmac = HmacSHA256(infoBitsWordArray, prk);\n    return Buffer.from(hmac.toString(), 'hex').slice(0, 16);\n  };\n  /**\n   * Calculates the final hkdf based on computed S value, and computed U value and the key\n   * @param {String} username Username.\n   * @param {String} password Password.\n   * @param {BigInteger} serverBValue Server B value.\n   * @param {BigInteger} salt Generated salt.\n   * @param {nodeCallback<Buffer>} callback Called with (err, hkdfValue)\n   * @returns {void}\n   */\n\n\n  AuthenticationHelper.prototype.getPasswordAuthenticationKey = function getPasswordAuthenticationKey(username, password, serverBValue, salt, callback) {\n    var _this4 = this;\n\n    if (serverBValue.mod(this.N).equals(BigInteger.ZERO)) {\n      throw new Error('B cannot be zero.');\n    }\n\n    this.UValue = this.calculateU(this.largeAValue, serverBValue);\n\n    if (this.UValue.equals(BigInteger.ZERO)) {\n      throw new Error('U cannot be zero.');\n    }\n\n    var usernamePassword = '' + this.poolName + username + ':' + password;\n    var usernamePasswordHash = this.hash(usernamePassword);\n    var xValue = new BigInteger(this.hexHash(this.padHex(salt) + usernamePasswordHash), 16);\n    this.calculateS(xValue, serverBValue, function (err, sValue) {\n      if (err) {\n        callback(err, null);\n      }\n\n      var hkdf = _this4.computehkdf(Buffer.from(_this4.padHex(sValue), 'hex'), Buffer.from(_this4.padHex(_this4.UValue.toString(16)), 'hex'));\n\n      callback(null, hkdf);\n    });\n  };\n  /**\n   * Calculates the S value used in getPasswordAuthenticationKey\n   * @param {BigInteger} xValue Salted password hash value.\n   * @param {BigInteger} serverBValue Server B value.\n   * @param {nodeCallback<string>} callback Called on success or error.\n   * @returns {void}\n   */\n\n\n  AuthenticationHelper.prototype.calculateS = function calculateS(xValue, serverBValue, callback) {\n    var _this5 = this;\n\n    this.g.modPow(xValue, this.N, function (err, gModPowXN) {\n      if (err) {\n        callback(err, null);\n      }\n\n      var intValue2 = serverBValue.subtract(_this5.k.multiply(gModPowXN));\n      intValue2.modPow(_this5.smallAValue.add(_this5.UValue.multiply(xValue)), _this5.N, function (err2, result) {\n        if (err2) {\n          callback(err2, null);\n        }\n\n        callback(null, result.mod(_this5.N));\n      });\n    });\n  };\n  /**\n   * Return constant newPasswordRequiredChallengeUserAttributePrefix\n   * @return {newPasswordRequiredChallengeUserAttributePrefix} constant prefix value\n   */\n\n\n  AuthenticationHelper.prototype.getNewPasswordRequiredChallengeUserAttributePrefix = function getNewPasswordRequiredChallengeUserAttributePrefix() {\n    return newPasswordRequiredChallengeUserAttributePrefix;\n  };\n  /**\n   * Converts a BigInteger (or hex string) to hex format padded with zeroes for hashing\n   * @param {BigInteger|String} bigInt Number or string to pad.\n   * @returns {String} Padded hex string.\n   */\n\n\n  AuthenticationHelper.prototype.padHex = function padHex(bigInt) {\n    var hashStr = bigInt.toString(16);\n\n    if (hashStr.length % 2 === 1) {\n      hashStr = '0' + hashStr;\n    } else if ('89ABCDEFabcdef'.indexOf(hashStr[0]) !== -1) {\n      hashStr = '00' + hashStr;\n    }\n\n    return hashStr;\n  };\n\n  return AuthenticationHelper;\n}();\n\nexport default AuthenticationHelper;","function _classCallCheck(instance, Constructor) {\n  if (!(instance instanceof Constructor)) {\n    throw new TypeError(\"Cannot call a class as a function\");\n  }\n}\n/*!\n * Copyright 2016 Amazon.com,\n * Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Amazon Software License (the \"License\").\n * You may not use this file except in compliance with the\n * License. A copy of the License is located at\n *\n *     http://aws.amazon.com/asl/\n *\n * or in the \"license\" file accompanying this file. This file is\n * distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, express or implied. See the License\n * for the specific language governing permissions and\n * limitations under the License.\n */\n\n\nimport { Buffer } from 'buffer/';\n/** @class */\n\nvar CognitoJwtToken = function () {\n  /**\n   * Constructs a new CognitoJwtToken object\n   * @param {string=} token The JWT token.\n   */\n  function CognitoJwtToken(token) {\n    _classCallCheck(this, CognitoJwtToken); // Assign object\n\n\n    this.jwtToken = token || '';\n    this.payload = this.decodePayload();\n  }\n  /**\n   * @returns {string} the record's token.\n   */\n\n\n  CognitoJwtToken.prototype.getJwtToken = function getJwtToken() {\n    return this.jwtToken;\n  };\n  /**\n   * @returns {int} the token's expiration (exp member).\n   */\n\n\n  CognitoJwtToken.prototype.getExpiration = function getExpiration() {\n    return this.payload.exp;\n  };\n  /**\n   * @returns {int} the token's \"issued at\" (iat member).\n   */\n\n\n  CognitoJwtToken.prototype.getIssuedAt = function getIssuedAt() {\n    return this.payload.iat;\n  };\n  /**\n   * @returns {object} the token's payload.\n   */\n\n\n  CognitoJwtToken.prototype.decodePayload = function decodePayload() {\n    var payload = this.jwtToken.split('.')[1];\n\n    try {\n      return JSON.parse(Buffer.from(payload, 'base64').toString('utf8'));\n    } catch (err) {\n      return {};\n    }\n  };\n\n  return CognitoJwtToken;\n}();\n\nexport default CognitoJwtToken;","function _classCallCheck(instance, Constructor) {\n  if (!(instance instanceof Constructor)) {\n    throw new TypeError(\"Cannot call a class as a function\");\n  }\n}\n\nfunction _possibleConstructorReturn(self, call) {\n  if (!self) {\n    throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");\n  }\n\n  return call && (typeof call === \"object\" || typeof call === \"function\") ? call : self;\n}\n\nfunction _inherits(subClass, superClass) {\n  if (typeof superClass !== \"function\" && superClass !== null) {\n    throw new TypeError(\"Super expression must either be null or a function, not \" + typeof superClass);\n  }\n\n  subClass.prototype = Object.create(superClass && superClass.prototype, {\n    constructor: {\n      value: subClass,\n      enumerable: false,\n      writable: true,\n      configurable: true\n    }\n  });\n  if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;\n}\n/*\n * Copyright 2016 Amazon.com,\n * Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Amazon Software License (the \"License\").\n * You may not use this file except in compliance with the\n * License. A copy of the License is located at\n *\n *     http://aws.amazon.com/asl/\n *\n * or in the \"license\" file accompanying this file. This file is\n * distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, express or implied. See the License\n * for the specific language governing permissions and\n * limitations under the License.\n */\n\n\nimport CognitoJwtToken from './CognitoJwtToken';\n/** @class */\n\nvar CognitoAccessToken = function (_CognitoJwtToken) {\n  _inherits(CognitoAccessToken, _CognitoJwtToken);\n  /**\n   * Constructs a new CognitoAccessToken object\n   * @param {string=} AccessToken The JWT access token.\n   */\n\n\n  function CognitoAccessToken() {\n    var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},\n        AccessToken = _ref.AccessToken;\n\n    _classCallCheck(this, CognitoAccessToken);\n\n    return _possibleConstructorReturn(this, _CognitoJwtToken.call(this, AccessToken || ''));\n  }\n\n  return CognitoAccessToken;\n}(CognitoJwtToken);\n\nexport default CognitoAccessToken;","function _classCallCheck(instance, Constructor) {\n  if (!(instance instanceof Constructor)) {\n    throw new TypeError(\"Cannot call a class as a function\");\n  }\n}\n\nfunction _possibleConstructorReturn(self, call) {\n  if (!self) {\n    throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");\n  }\n\n  return call && (typeof call === \"object\" || typeof call === \"function\") ? call : self;\n}\n\nfunction _inherits(subClass, superClass) {\n  if (typeof superClass !== \"function\" && superClass !== null) {\n    throw new TypeError(\"Super expression must either be null or a function, not \" + typeof superClass);\n  }\n\n  subClass.prototype = Object.create(superClass && superClass.prototype, {\n    constructor: {\n      value: subClass,\n      enumerable: false,\n      writable: true,\n      configurable: true\n    }\n  });\n  if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;\n}\n/*!\n * Copyright 2016 Amazon.com,\n * Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Amazon Software License (the \"License\").\n * You may not use this file except in compliance with the\n * License. A copy of the License is located at\n *\n *     http://aws.amazon.com/asl/\n *\n * or in the \"license\" file accompanying this file. This file is\n * distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, express or implied. See the License\n * for the specific language governing permissions and\n * limitations under the License.\n */\n\n\nimport CognitoJwtToken from './CognitoJwtToken';\n/** @class */\n\nvar CognitoIdToken = function (_CognitoJwtToken) {\n  _inherits(CognitoIdToken, _CognitoJwtToken);\n  /**\n   * Constructs a new CognitoIdToken object\n   * @param {string=} IdToken The JWT Id token\n   */\n\n\n  function CognitoIdToken() {\n    var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},\n        IdToken = _ref.IdToken;\n\n    _classCallCheck(this, CognitoIdToken);\n\n    return _possibleConstructorReturn(this, _CognitoJwtToken.call(this, IdToken || ''));\n  }\n\n  return CognitoIdToken;\n}(CognitoJwtToken);\n\nexport default CognitoIdToken;","function _classCallCheck(instance, Constructor) {\n  if (!(instance instanceof Constructor)) {\n    throw new TypeError(\"Cannot call a class as a function\");\n  }\n}\n/*!\n * Copyright 2016 Amazon.com,\n * Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Amazon Software License (the \"License\").\n * You may not use this file except in compliance with the\n * License. A copy of the License is located at\n *\n *     http://aws.amazon.com/asl/\n *\n * or in the \"license\" file accompanying this file. This file is\n * distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, express or implied. See the License\n * for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** @class */\n\n\nvar CognitoRefreshToken = function () {\n  /**\n   * Constructs a new CognitoRefreshToken object\n   * @param {string=} RefreshToken The JWT refresh token.\n   */\n  function CognitoRefreshToken() {\n    var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},\n        RefreshToken = _ref.RefreshToken;\n\n    _classCallCheck(this, CognitoRefreshToken); // Assign object\n\n\n    this.token = RefreshToken || '';\n  }\n  /**\n   * @returns {string} the record's token.\n   */\n\n\n  CognitoRefreshToken.prototype.getToken = function getToken() {\n    return this.token;\n  };\n\n  return CognitoRefreshToken;\n}();\n\nexport default CognitoRefreshToken;","function _classCallCheck(instance, Constructor) {\n  if (!(instance instanceof Constructor)) {\n    throw new TypeError(\"Cannot call a class as a function\");\n  }\n}\n/*!\n * Copyright 2016 Amazon.com,\n * Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Amazon Software License (the \"License\").\n * You may not use this file except in compliance with the\n * License. A copy of the License is located at\n *\n *     http://aws.amazon.com/asl/\n *\n * or in the \"license\" file accompanying this file. This file is\n * distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, express or implied. See the License\n * for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** @class */\n\n\nvar CognitoUserSession = function () {\n  /**\n   * Constructs a new CognitoUserSession object\n   * @param {CognitoIdToken} IdToken The session's Id token.\n   * @param {CognitoRefreshToken=} RefreshToken The session's refresh token.\n   * @param {CognitoAccessToken} AccessToken The session's access token.\n   * @param {int} ClockDrift The saved computer's clock drift or undefined to force calculation.\n   */\n  function CognitoUserSession() {\n    var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},\n        IdToken = _ref.IdToken,\n        RefreshToken = _ref.RefreshToken,\n        AccessToken = _ref.AccessToken,\n        ClockDrift = _ref.ClockDrift;\n\n    _classCallCheck(this, CognitoUserSession);\n\n    if (AccessToken == null || IdToken == null) {\n      throw new Error('Id token and Access Token must be present.');\n    }\n\n    this.idToken = IdToken;\n    this.refreshToken = RefreshToken;\n    this.accessToken = AccessToken;\n    this.clockDrift = ClockDrift === undefined ? this.calculateClockDrift() : ClockDrift;\n  }\n  /**\n   * @returns {CognitoIdToken} the session's Id token\n   */\n\n\n  CognitoUserSession.prototype.getIdToken = function getIdToken() {\n    return this.idToken;\n  };\n  /**\n   * @returns {CognitoRefreshToken} the session's refresh token\n   */\n\n\n  CognitoUserSession.prototype.getRefreshToken = function getRefreshToken() {\n    return this.refreshToken;\n  };\n  /**\n   * @returns {CognitoAccessToken} the session's access token\n   */\n\n\n  CognitoUserSession.prototype.getAccessToken = function getAccessToken() {\n    return this.accessToken;\n  };\n  /**\n   * @returns {int} the session's clock drift\n   */\n\n\n  CognitoUserSession.prototype.getClockDrift = function getClockDrift() {\n    return this.clockDrift;\n  };\n  /**\n   * @returns {int} the computer's clock drift\n   */\n\n\n  CognitoUserSession.prototype.calculateClockDrift = function calculateClockDrift() {\n    var now = Math.floor(new Date() / 1000);\n    var iat = Math.min(this.accessToken.getIssuedAt(), this.idToken.getIssuedAt());\n    return now - iat;\n  };\n  /**\n   * Checks to see if the session is still valid based on session expiry information found\n   * in tokens and the current time (adjusted with clock drift)\n   * @returns {boolean} if the session is still valid\n   */\n\n\n  CognitoUserSession.prototype.isValid = function isValid() {\n    var now = Math.floor(new Date() / 1000);\n    var adjusted = now - this.clockDrift;\n    return adjusted < this.accessToken.getExpiration() && adjusted < this.idToken.getExpiration();\n  };\n\n  return CognitoUserSession;\n}();\n\nexport default CognitoUserSession;","function _classCallCheck(instance, Constructor) {\n  if (!(instance instanceof Constructor)) {\n    throw new TypeError(\"Cannot call a class as a function\");\n  }\n}\n/*!\n * Copyright 2016 Amazon.com,\n * Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Amazon Software License (the \"License\").\n * You may not use this file except in compliance with the\n * License. A copy of the License is located at\n *\n *     http://aws.amazon.com/asl/\n *\n * or in the \"license\" file accompanying this file. This file is\n * distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, express or implied. See the License\n * for the specific language governing permissions and\n * limitations under the License.\n */\n\n\nvar monthNames = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];\nvar weekNames = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'];\n/** @class */\n\nvar DateHelper = function () {\n  function DateHelper() {\n    _classCallCheck(this, DateHelper);\n  }\n  /**\n   * @returns {string} The current time in \"ddd MMM D HH:mm:ss UTC YYYY\" format.\n   */\n\n\n  DateHelper.prototype.getNowString = function getNowString() {\n    var now = new Date();\n    var weekDay = weekNames[now.getUTCDay()];\n    var month = monthNames[now.getUTCMonth()];\n    var day = now.getUTCDate();\n    var hours = now.getUTCHours();\n\n    if (hours < 10) {\n      hours = '0' + hours;\n    }\n\n    var minutes = now.getUTCMinutes();\n\n    if (minutes < 10) {\n      minutes = '0' + minutes;\n    }\n\n    var seconds = now.getUTCSeconds();\n\n    if (seconds < 10) {\n      seconds = '0' + seconds;\n    }\n\n    var year = now.getUTCFullYear(); // ddd MMM D HH:mm:ss UTC YYYY\n\n    var dateNow = weekDay + ' ' + month + ' ' + day + ' ' + hours + ':' + minutes + ':' + seconds + ' UTC ' + year;\n    return dateNow;\n  };\n\n  return DateHelper;\n}();\n\nexport default DateHelper;","function _classCallCheck(instance, Constructor) {\n  if (!(instance instanceof Constructor)) {\n    throw new TypeError(\"Cannot call a class as a function\");\n  }\n}\n/*!\n * Copyright 2016 Amazon.com,\n * Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Amazon Software License (the \"License\").\n * You may not use this file except in compliance with the\n * License. A copy of the License is located at\n *\n *     http://aws.amazon.com/asl/\n *\n * or in the \"license\" file accompanying this file. This file is\n * distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, express or implied. See the License\n * for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** @class */\n\n\nvar CognitoUserAttribute = function () {\n  /**\n   * Constructs a new CognitoUserAttribute object\n   * @param {string=} Name The record's name\n   * @param {string=} Value The record's value\n   */\n  function CognitoUserAttribute() {\n    var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},\n        Name = _ref.Name,\n        Value = _ref.Value;\n\n    _classCallCheck(this, CognitoUserAttribute);\n\n    this.Name = Name || '';\n    this.Value = Value || '';\n  }\n  /**\n   * @returns {string} the record's value.\n   */\n\n\n  CognitoUserAttribute.prototype.getValue = function getValue() {\n    return this.Value;\n  };\n  /**\n   * Sets the record's value.\n   * @param {string} value The new value.\n   * @returns {CognitoUserAttribute} The record for method chaining.\n   */\n\n\n  CognitoUserAttribute.prototype.setValue = function setValue(value) {\n    this.Value = value;\n    return this;\n  };\n  /**\n   * @returns {string} the record's name.\n   */\n\n\n  CognitoUserAttribute.prototype.getName = function getName() {\n    return this.Name;\n  };\n  /**\n   * Sets the record's name\n   * @param {string} name The new name.\n   * @returns {CognitoUserAttribute} The record for method chaining.\n   */\n\n\n  CognitoUserAttribute.prototype.setName = function setName(name) {\n    this.Name = name;\n    return this;\n  };\n  /**\n   * @returns {string} a string representation of the record.\n   */\n\n\n  CognitoUserAttribute.prototype.toString = function toString() {\n    return JSON.stringify(this);\n  };\n  /**\n   * @returns {object} a flat object representing the record.\n   */\n\n\n  CognitoUserAttribute.prototype.toJSON = function toJSON() {\n    return {\n      Name: this.Name,\n      Value: this.Value\n    };\n  };\n\n  return CognitoUserAttribute;\n}();\n\nexport default CognitoUserAttribute;","function _classCallCheck(instance, Constructor) {\n  if (!(instance instanceof Constructor)) {\n    throw new TypeError(\"Cannot call a class as a function\");\n  }\n}\n/*!\n * Copyright 2016 Amazon.com,\n * Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Amazon Software License (the \"License\").\n * You may not use this file except in compliance with the\n * License. A copy of the License is located at\n *\n *     http://aws.amazon.com/asl/\n *\n * or in the \"license\" file accompanying this file. This file is\n * distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, express or implied. See the License\n * for the specific language governing permissions and\n * limitations under the License.\n */\n\n\nvar dataMemory = {};\n/** @class */\n\nvar MemoryStorage = function () {\n  function MemoryStorage() {\n    _classCallCheck(this, MemoryStorage);\n  }\n  /**\n   * This is used to set a specific item in storage\n   * @param {string} key - the key for the item\n   * @param {object} value - the value\n   * @returns {string} value that was set\n   */\n\n\n  MemoryStorage.setItem = function setItem(key, value) {\n    dataMemory[key] = value;\n    return dataMemory[key];\n  };\n  /**\n   * This is used to get a specific key from storage\n   * @param {string} key - the key for the item\n   * This is used to clear the storage\n   * @returns {string} the data item\n   */\n\n\n  MemoryStorage.getItem = function getItem(key) {\n    return Object.prototype.hasOwnProperty.call(dataMemory, key) ? dataMemory[key] : undefined;\n  };\n  /**\n   * This is used to remove an item from storage\n   * @param {string} key - the key being set\n   * @returns {string} value - value that was deleted\n   */\n\n\n  MemoryStorage.removeItem = function removeItem(key) {\n    return delete dataMemory[key];\n  };\n  /**\n   * This is used to clear the storage\n   * @returns {string} nothing\n   */\n\n\n  MemoryStorage.clear = function clear() {\n    dataMemory = {};\n    return dataMemory;\n  };\n\n  return MemoryStorage;\n}();\n/** @class */\n\n\nvar StorageHelper = function () {\n  /**\n   * This is used to get a storage object\n   * @returns {object} the storage\n   */\n  function StorageHelper() {\n    _classCallCheck(this, StorageHelper);\n\n    try {\n      this.storageWindow = window.localStorage;\n      this.storageWindow.setItem('aws.cognito.test-ls', 1);\n      this.storageWindow.removeItem('aws.cognito.test-ls');\n    } catch (exception) {\n      this.storageWindow = MemoryStorage;\n    }\n  }\n  /**\n   * This is used to return the storage\n   * @returns {object} the storage\n   */\n\n\n  StorageHelper.prototype.getStorage = function getStorage() {\n    return this.storageWindow;\n  };\n\n  return StorageHelper;\n}();\n\nexport default StorageHelper;","function _classCallCheck(instance, Constructor) {\n  if (!(instance instanceof Constructor)) {\n    throw new TypeError(\"Cannot call a class as a function\");\n  }\n}\n/*!\n * Copyright 2016 Amazon.com,\n * Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Amazon Software License (the \"License\").\n * You may not use this file except in compliance with the\n * License. A copy of the License is located at\n *\n *     http://aws.amazon.com/asl/\n *\n * or in the \"license\" file accompanying this file. This file is\n * distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, express or implied. See the License\n * for the specific language governing permissions and\n * limitations under the License.\n */\n\n\nimport { Buffer } from 'buffer/';\nimport CryptoJS from 'crypto-js/core';\nimport TypedArrays from 'crypto-js/lib-typedarrays'; // necessary for crypto js\n\nimport Base64 from 'crypto-js/enc-base64';\nimport HmacSHA256 from 'crypto-js/hmac-sha256';\nimport BigInteger from './BigInteger';\nimport AuthenticationHelper from './AuthenticationHelper';\nimport CognitoAccessToken from './CognitoAccessToken';\nimport CognitoIdToken from './CognitoIdToken';\nimport CognitoRefreshToken from './CognitoRefreshToken';\nimport CognitoUserSession from './CognitoUserSession';\nimport DateHelper from './DateHelper';\nimport CognitoUserAttribute from './CognitoUserAttribute';\nimport StorageHelper from './StorageHelper';\n/**\n * @callback nodeCallback\n * @template T result\n * @param {*} err The operation failure reason, or null.\n * @param {T} result The operation result.\n */\n\n/**\n * @callback onFailure\n * @param {*} err Failure reason.\n */\n\n/**\n * @callback onSuccess\n * @template T result\n * @param {T} result The operation result.\n */\n\n/**\n * @callback mfaRequired\n * @param {*} details MFA challenge details.\n */\n\n/**\n * @callback customChallenge\n * @param {*} details Custom challenge details.\n */\n\n/**\n * @callback inputVerificationCode\n * @param {*} data Server response.\n */\n\n/**\n * @callback authSuccess\n * @param {CognitoUserSession} session The new session.\n * @param {bool=} userConfirmationNecessary User must be confirmed.\n */\n\n/** @class */\n\nvar CognitoUser = function () {\n  /**\n   * Constructs a new CognitoUser object\n   * @param {object} data Creation options\n   * @param {string} data.Username The user's username.\n   * @param {CognitoUserPool} data.Pool Pool containing the user.\n   * @param {object} data.Storage Optional storage object.\n   */\n  function CognitoUser(data) {\n    _classCallCheck(this, CognitoUser);\n\n    if (data == null || data.Username == null || data.Pool == null) {\n      throw new Error('Username and pool information are required.');\n    }\n\n    this.username = data.Username || '';\n    this.pool = data.Pool;\n    this.Session = null;\n    this.client = data.Pool.client;\n    this.signInUserSession = null;\n    this.authenticationFlowType = 'USER_SRP_AUTH';\n    this.storage = data.Storage || new StorageHelper().getStorage();\n    this.keyPrefix = 'CognitoIdentityServiceProvider.' + this.pool.getClientId();\n    this.userDataKey = this.keyPrefix + '.' + this.username + '.userData';\n  }\n  /**\n   * Sets the session for this user\n   * @param {CognitoUserSession} signInUserSession the session\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.setSignInUserSession = function setSignInUserSession(signInUserSession) {\n    this.clearCachedUserData();\n    this.signInUserSession = signInUserSession;\n    this.cacheTokens();\n  };\n  /**\n   * @returns {CognitoUserSession} the current session for this user\n   */\n\n\n  CognitoUser.prototype.getSignInUserSession = function getSignInUserSession() {\n    return this.signInUserSession;\n  };\n  /**\n   * @returns {string} the user's username\n   */\n\n\n  CognitoUser.prototype.getUsername = function getUsername() {\n    return this.username;\n  };\n  /**\n   * @returns {String} the authentication flow type\n   */\n\n\n  CognitoUser.prototype.getAuthenticationFlowType = function getAuthenticationFlowType() {\n    return this.authenticationFlowType;\n  };\n  /**\n   * sets authentication flow type\n   * @param {string} authenticationFlowType New value.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.setAuthenticationFlowType = function setAuthenticationFlowType(authenticationFlowType) {\n    this.authenticationFlowType = authenticationFlowType;\n  };\n  /**\n   * This is used for authenticating the user through the custom authentication flow.\n   * @param {AuthenticationDetails} authDetails Contains the authentication data\n   * @param {object} callback Result callback map.\n   * @param {onFailure} callback.onFailure Called on any error.\n   * @param {customChallenge} callback.customChallenge Custom challenge\n   *        response required to continue.\n   * @param {authSuccess} callback.onSuccess Called on success with the new session.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.initiateAuth = function initiateAuth(authDetails, callback) {\n    var _this = this;\n\n    var authParameters = authDetails.getAuthParameters();\n    authParameters.USERNAME = this.username;\n    var clientMetaData = Object.keys(authDetails.getValidationData()).length !== 0 ? authDetails.getValidationData() : authDetails.getClientMetadata();\n    var jsonReq = {\n      AuthFlow: 'CUSTOM_AUTH',\n      ClientId: this.pool.getClientId(),\n      AuthParameters: authParameters,\n      ClientMetadata: clientMetaData\n    };\n\n    if (this.getUserContextData()) {\n      jsonReq.UserContextData = this.getUserContextData();\n    }\n\n    this.client.request('InitiateAuth', jsonReq, function (err, data) {\n      if (err) {\n        return callback.onFailure(err);\n      }\n\n      var challengeName = data.ChallengeName;\n      var challengeParameters = data.ChallengeParameters;\n\n      if (challengeName === 'CUSTOM_CHALLENGE') {\n        _this.Session = data.Session;\n        return callback.customChallenge(challengeParameters);\n      }\n\n      _this.signInUserSession = _this.getCognitoUserSession(data.AuthenticationResult);\n\n      _this.cacheTokens();\n\n      return callback.onSuccess(_this.signInUserSession);\n    });\n  };\n  /**\n   * This is used for authenticating the user.\n   * stuff\n   * @param {AuthenticationDetails} authDetails Contains the authentication data\n   * @param {object} callback Result callback map.\n   * @param {onFailure} callback.onFailure Called on any error.\n   * @param {newPasswordRequired} callback.newPasswordRequired new\n   *        password and any required attributes are required to continue\n   * @param {mfaRequired} callback.mfaRequired MFA code\n   *        required to continue.\n   * @param {customChallenge} callback.customChallenge Custom challenge\n   *        response required to continue.\n   * @param {authSuccess} callback.onSuccess Called on success with the new session.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.authenticateUser = function authenticateUser(authDetails, callback) {\n    if (this.authenticationFlowType === 'USER_PASSWORD_AUTH') {\n      return this.authenticateUserPlainUsernamePassword(authDetails, callback);\n    } else if (this.authenticationFlowType === 'USER_SRP_AUTH' || this.authenticationFlowType === 'CUSTOM_AUTH') {\n      return this.authenticateUserDefaultAuth(authDetails, callback);\n    }\n\n    return callback.onFailure(new Error('Authentication flow type is invalid.'));\n  };\n  /**\n   * PRIVATE ONLY: This is an internal only method and should not\n   * be directly called by the consumers.\n   * It calls the AuthenticationHelper for SRP related\n   * stuff\n   * @param {AuthenticationDetails} authDetails Contains the authentication data\n   * @param {object} callback Result callback map.\n   * @param {onFailure} callback.onFailure Called on any error.\n   * @param {newPasswordRequired} callback.newPasswordRequired new\n   *        password and any required attributes are required to continue\n   * @param {mfaRequired} callback.mfaRequired MFA code\n   *        required to continue.\n   * @param {customChallenge} callback.customChallenge Custom challenge\n   *        response required to continue.\n   * @param {authSuccess} callback.onSuccess Called on success with the new session.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.authenticateUserDefaultAuth = function authenticateUserDefaultAuth(authDetails, callback) {\n    var _this2 = this;\n\n    var authenticationHelper = new AuthenticationHelper(this.pool.getUserPoolId().split('_')[1]);\n    var dateHelper = new DateHelper();\n    var serverBValue = void 0;\n    var salt = void 0;\n    var authParameters = {};\n\n    if (this.deviceKey != null) {\n      authParameters.DEVICE_KEY = this.deviceKey;\n    }\n\n    authParameters.USERNAME = this.username;\n    authenticationHelper.getLargeAValue(function (errOnAValue, aValue) {\n      // getLargeAValue callback start\n      if (errOnAValue) {\n        callback.onFailure(errOnAValue);\n      }\n\n      authParameters.SRP_A = aValue.toString(16);\n\n      if (_this2.authenticationFlowType === 'CUSTOM_AUTH') {\n        authParameters.CHALLENGE_NAME = 'SRP_A';\n      }\n\n      var clientMetaData = Object.keys(authDetails.getValidationData()).length !== 0 ? authDetails.getValidationData() : authDetails.getClientMetadata();\n      var jsonReq = {\n        AuthFlow: _this2.authenticationFlowType,\n        ClientId: _this2.pool.getClientId(),\n        AuthParameters: authParameters,\n        ClientMetadata: clientMetaData\n      };\n\n      if (_this2.getUserContextData(_this2.username)) {\n        jsonReq.UserContextData = _this2.getUserContextData(_this2.username);\n      }\n\n      _this2.client.request('InitiateAuth', jsonReq, function (err, data) {\n        if (err) {\n          return callback.onFailure(err);\n        }\n\n        var challengeParameters = data.ChallengeParameters;\n        _this2.username = challengeParameters.USER_ID_FOR_SRP;\n        serverBValue = new BigInteger(challengeParameters.SRP_B, 16);\n        salt = new BigInteger(challengeParameters.SALT, 16);\n\n        _this2.getCachedDeviceKeyAndPassword();\n\n        authenticationHelper.getPasswordAuthenticationKey(_this2.username, authDetails.getPassword(), serverBValue, salt, function (errOnHkdf, hkdf) {\n          // getPasswordAuthenticationKey callback start\n          if (errOnHkdf) {\n            callback.onFailure(errOnHkdf);\n          }\n\n          var dateNow = dateHelper.getNowString();\n          var message = CryptoJS.lib.WordArray.create(Buffer.concat([Buffer.from(_this2.pool.getUserPoolId().split('_')[1], 'utf8'), Buffer.from(_this2.username, 'utf8'), Buffer.from(challengeParameters.SECRET_BLOCK, 'base64'), Buffer.from(dateNow, 'utf8')]));\n          var key = CryptoJS.lib.WordArray.create(hkdf);\n          var signatureString = Base64.stringify(HmacSHA256(message, key));\n          var challengeResponses = {};\n          challengeResponses.USERNAME = _this2.username;\n          challengeResponses.PASSWORD_CLAIM_SECRET_BLOCK = challengeParameters.SECRET_BLOCK;\n          challengeResponses.TIMESTAMP = dateNow;\n          challengeResponses.PASSWORD_CLAIM_SIGNATURE = signatureString;\n\n          if (_this2.deviceKey != null) {\n            challengeResponses.DEVICE_KEY = _this2.deviceKey;\n          }\n\n          var respondToAuthChallenge = function respondToAuthChallenge(challenge, challengeCallback) {\n            return _this2.client.request('RespondToAuthChallenge', challenge, function (errChallenge, dataChallenge) {\n              if (errChallenge && errChallenge.code === 'ResourceNotFoundException' && errChallenge.message.toLowerCase().indexOf('device') !== -1) {\n                challengeResponses.DEVICE_KEY = null;\n                _this2.deviceKey = null;\n                _this2.randomPassword = null;\n                _this2.deviceGroupKey = null;\n\n                _this2.clearCachedDeviceKeyAndPassword();\n\n                return respondToAuthChallenge(challenge, challengeCallback);\n              }\n\n              return challengeCallback(errChallenge, dataChallenge);\n            });\n          };\n\n          var jsonReqResp = {\n            ChallengeName: 'PASSWORD_VERIFIER',\n            ClientId: _this2.pool.getClientId(),\n            ChallengeResponses: challengeResponses,\n            Session: data.Session,\n            ClientMetadata: clientMetaData\n          };\n\n          if (_this2.getUserContextData()) {\n            jsonReqResp.UserContextData = _this2.getUserContextData();\n          }\n\n          respondToAuthChallenge(jsonReqResp, function (errAuthenticate, dataAuthenticate) {\n            if (errAuthenticate) {\n              return callback.onFailure(errAuthenticate);\n            }\n\n            return _this2.authenticateUserInternal(dataAuthenticate, authenticationHelper, callback);\n          });\n          return undefined; // getPasswordAuthenticationKey callback end\n        });\n        return undefined;\n      }); // getLargeAValue callback end\n\n    });\n  };\n  /**\n   * PRIVATE ONLY: This is an internal only method and should not\n   * be directly called by the consumers.\n   * @param {AuthenticationDetails} authDetails Contains the authentication data.\n   * @param {object} callback Result callback map.\n   * @param {onFailure} callback.onFailure Called on any error.\n   * @param {mfaRequired} callback.mfaRequired MFA code\n   *        required to continue.\n   * @param {authSuccess} callback.onSuccess Called on success with the new session.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.authenticateUserPlainUsernamePassword = function authenticateUserPlainUsernamePassword(authDetails, callback) {\n    var _this3 = this;\n\n    var authParameters = {};\n    authParameters.USERNAME = this.username;\n    authParameters.PASSWORD = authDetails.getPassword();\n\n    if (!authParameters.PASSWORD) {\n      callback.onFailure(new Error('PASSWORD parameter is required'));\n      return;\n    }\n\n    var authenticationHelper = new AuthenticationHelper(this.pool.getUserPoolId().split('_')[1]);\n    this.getCachedDeviceKeyAndPassword();\n\n    if (this.deviceKey != null) {\n      authParameters.DEVICE_KEY = this.deviceKey;\n    }\n\n    var clientMetaData = Object.keys(authDetails.getValidationData()).length !== 0 ? authDetails.getValidationData() : authDetails.getClientMetadata();\n    var jsonReq = {\n      AuthFlow: 'USER_PASSWORD_AUTH',\n      ClientId: this.pool.getClientId(),\n      AuthParameters: authParameters,\n      ClientMetadata: clientMetaData\n    };\n\n    if (this.getUserContextData(this.username)) {\n      jsonReq.UserContextData = this.getUserContextData(this.username);\n    } // USER_PASSWORD_AUTH happens in a single round-trip: client sends userName and password,\n    // Cognito UserPools verifies password and returns tokens.\n\n\n    this.client.request('InitiateAuth', jsonReq, function (err, authResult) {\n      if (err) {\n        return callback.onFailure(err);\n      }\n\n      return _this3.authenticateUserInternal(authResult, authenticationHelper, callback);\n    });\n  };\n  /**\n   * PRIVATE ONLY: This is an internal only method and should not\n   * be directly called by the consumers.\n   * @param {object} dataAuthenticate authentication data\n   * @param {object} authenticationHelper helper created\n   * @param {callback} callback passed on from caller\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.authenticateUserInternal = function authenticateUserInternal(dataAuthenticate, authenticationHelper, callback) {\n    var _this4 = this;\n\n    var challengeName = dataAuthenticate.ChallengeName;\n    var challengeParameters = dataAuthenticate.ChallengeParameters;\n\n    if (challengeName === 'SMS_MFA') {\n      this.Session = dataAuthenticate.Session;\n      return callback.mfaRequired(challengeName, challengeParameters);\n    }\n\n    if (challengeName === 'SELECT_MFA_TYPE') {\n      this.Session = dataAuthenticate.Session;\n      return callback.selectMFAType(challengeName, challengeParameters);\n    }\n\n    if (challengeName === 'MFA_SETUP') {\n      this.Session = dataAuthenticate.Session;\n      return callback.mfaSetup(challengeName, challengeParameters);\n    }\n\n    if (challengeName === 'SOFTWARE_TOKEN_MFA') {\n      this.Session = dataAuthenticate.Session;\n      return callback.totpRequired(challengeName, challengeParameters);\n    }\n\n    if (challengeName === 'CUSTOM_CHALLENGE') {\n      this.Session = dataAuthenticate.Session;\n      return callback.customChallenge(challengeParameters);\n    }\n\n    if (challengeName === 'NEW_PASSWORD_REQUIRED') {\n      this.Session = dataAuthenticate.Session;\n      var userAttributes = null;\n      var rawRequiredAttributes = null;\n      var requiredAttributes = [];\n      var userAttributesPrefix = authenticationHelper.getNewPasswordRequiredChallengeUserAttributePrefix();\n\n      if (challengeParameters) {\n        userAttributes = JSON.parse(dataAuthenticate.ChallengeParameters.userAttributes);\n        rawRequiredAttributes = JSON.parse(dataAuthenticate.ChallengeParameters.requiredAttributes);\n      }\n\n      if (rawRequiredAttributes) {\n        for (var i = 0; i < rawRequiredAttributes.length; i++) {\n          requiredAttributes[i] = rawRequiredAttributes[i].substr(userAttributesPrefix.length);\n        }\n      }\n\n      return callback.newPasswordRequired(userAttributes, requiredAttributes);\n    }\n\n    if (challengeName === 'DEVICE_SRP_AUTH') {\n      this.getDeviceResponse(callback);\n      return undefined;\n    }\n\n    this.signInUserSession = this.getCognitoUserSession(dataAuthenticate.AuthenticationResult);\n    this.challengeName = challengeName;\n    this.cacheTokens();\n    var newDeviceMetadata = dataAuthenticate.AuthenticationResult.NewDeviceMetadata;\n\n    if (newDeviceMetadata == null) {\n      return callback.onSuccess(this.signInUserSession);\n    }\n\n    authenticationHelper.generateHashDevice(dataAuthenticate.AuthenticationResult.NewDeviceMetadata.DeviceGroupKey, dataAuthenticate.AuthenticationResult.NewDeviceMetadata.DeviceKey, function (errGenHash) {\n      if (errGenHash) {\n        return callback.onFailure(errGenHash);\n      }\n\n      var deviceSecretVerifierConfig = {\n        Salt: Buffer.from(authenticationHelper.getSaltDevices(), 'hex').toString('base64'),\n        PasswordVerifier: Buffer.from(authenticationHelper.getVerifierDevices(), 'hex').toString('base64')\n      };\n      _this4.verifierDevices = deviceSecretVerifierConfig.PasswordVerifier;\n      _this4.deviceGroupKey = newDeviceMetadata.DeviceGroupKey;\n      _this4.randomPassword = authenticationHelper.getRandomPassword();\n\n      _this4.client.request('ConfirmDevice', {\n        DeviceKey: newDeviceMetadata.DeviceKey,\n        AccessToken: _this4.signInUserSession.getAccessToken().getJwtToken(),\n        DeviceSecretVerifierConfig: deviceSecretVerifierConfig,\n        DeviceName: navigator.userAgent\n      }, function (errConfirm, dataConfirm) {\n        if (errConfirm) {\n          return callback.onFailure(errConfirm);\n        }\n\n        _this4.deviceKey = dataAuthenticate.AuthenticationResult.NewDeviceMetadata.DeviceKey;\n\n        _this4.cacheDeviceKeyAndPassword();\n\n        if (dataConfirm.UserConfirmationNecessary === true) {\n          return callback.onSuccess(_this4.signInUserSession, dataConfirm.UserConfirmationNecessary);\n        }\n\n        return callback.onSuccess(_this4.signInUserSession);\n      });\n\n      return undefined;\n    });\n    return undefined;\n  };\n  /**\n   * This method is user to complete the NEW_PASSWORD_REQUIRED challenge.\n   * Pass the new password with any new user attributes to be updated.\n   * User attribute keys must be of format userAttributes.<attribute_name>.\n   * @param {string} newPassword new password for this user\n   * @param {object} requiredAttributeData map with values for all required attributes\n   * @param {object} callback Result callback map.\n   * @param {onFailure} callback.onFailure Called on any error.\n   * @param {mfaRequired} callback.mfaRequired MFA code required to continue.\n   * @param {customChallenge} callback.customChallenge Custom challenge\n   *         response required to continue.\n   * @param {authSuccess} callback.onSuccess Called on success with the new session.\n   * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.completeNewPasswordChallenge = function completeNewPasswordChallenge(newPassword, requiredAttributeData, callback, clientMetadata) {\n    var _this5 = this;\n\n    if (!newPassword) {\n      return callback.onFailure(new Error('New password is required.'));\n    }\n\n    var authenticationHelper = new AuthenticationHelper(this.pool.getUserPoolId().split('_')[1]);\n    var userAttributesPrefix = authenticationHelper.getNewPasswordRequiredChallengeUserAttributePrefix();\n    var finalUserAttributes = {};\n\n    if (requiredAttributeData) {\n      Object.keys(requiredAttributeData).forEach(function (key) {\n        finalUserAttributes[userAttributesPrefix + key] = requiredAttributeData[key];\n      });\n    }\n\n    finalUserAttributes.NEW_PASSWORD = newPassword;\n    finalUserAttributes.USERNAME = this.username;\n    var jsonReq = {\n      ChallengeName: 'NEW_PASSWORD_REQUIRED',\n      ClientId: this.pool.getClientId(),\n      ChallengeResponses: finalUserAttributes,\n      Session: this.Session,\n      ClientMetadata: clientMetadata\n    };\n\n    if (this.getUserContextData()) {\n      jsonReq.UserContextData = this.getUserContextData();\n    }\n\n    this.client.request('RespondToAuthChallenge', jsonReq, function (errAuthenticate, dataAuthenticate) {\n      if (errAuthenticate) {\n        return callback.onFailure(errAuthenticate);\n      }\n\n      return _this5.authenticateUserInternal(dataAuthenticate, authenticationHelper, callback);\n    });\n    return undefined;\n  };\n  /**\n   * This is used to get a session using device authentication. It is called at the end of user\n   * authentication\n   *\n   * @param {object} callback Result callback map.\n   * @param {onFailure} callback.onFailure Called on any error.\n   * @param {authSuccess} callback.onSuccess Called on success with the new session.\n   * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n   * @returns {void}\n   * @private\n   */\n\n\n  CognitoUser.prototype.getDeviceResponse = function getDeviceResponse(callback, clientMetadata) {\n    var _this6 = this;\n\n    var authenticationHelper = new AuthenticationHelper(this.deviceGroupKey);\n    var dateHelper = new DateHelper();\n    var authParameters = {};\n    authParameters.USERNAME = this.username;\n    authParameters.DEVICE_KEY = this.deviceKey;\n    authenticationHelper.getLargeAValue(function (errAValue, aValue) {\n      // getLargeAValue callback start\n      if (errAValue) {\n        callback.onFailure(errAValue);\n      }\n\n      authParameters.SRP_A = aValue.toString(16);\n      var jsonReq = {\n        ChallengeName: 'DEVICE_SRP_AUTH',\n        ClientId: _this6.pool.getClientId(),\n        ChallengeResponses: authParameters,\n        ClientMetadata: clientMetadata\n      };\n\n      if (_this6.getUserContextData()) {\n        jsonReq.UserContextData = _this6.getUserContextData();\n      }\n\n      _this6.client.request('RespondToAuthChallenge', jsonReq, function (err, data) {\n        if (err) {\n          return callback.onFailure(err);\n        }\n\n        var challengeParameters = data.ChallengeParameters;\n        var serverBValue = new BigInteger(challengeParameters.SRP_B, 16);\n        var salt = new BigInteger(challengeParameters.SALT, 16);\n        authenticationHelper.getPasswordAuthenticationKey(_this6.deviceKey, _this6.randomPassword, serverBValue, salt, function (errHkdf, hkdf) {\n          // getPasswordAuthenticationKey callback start\n          if (errHkdf) {\n            return callback.onFailure(errHkdf);\n          }\n\n          var dateNow = dateHelper.getNowString();\n          var message = CryptoJS.lib.WordArray.create(Buffer.concat([Buffer.from(_this6.deviceGroupKey, 'utf8'), Buffer.from(_this6.deviceKey, 'utf8'), Buffer.from(challengeParameters.SECRET_BLOCK, 'base64'), Buffer.from(dateNow, 'utf8')]));\n          var key = CryptoJS.lib.WordArray.create(hkdf);\n          var signatureString = Base64.stringify(HmacSHA256(message, key));\n          var challengeResponses = {};\n          challengeResponses.USERNAME = _this6.username;\n          challengeResponses.PASSWORD_CLAIM_SECRET_BLOCK = challengeParameters.SECRET_BLOCK;\n          challengeResponses.TIMESTAMP = dateNow;\n          challengeResponses.PASSWORD_CLAIM_SIGNATURE = signatureString;\n          challengeResponses.DEVICE_KEY = _this6.deviceKey;\n          var jsonReqResp = {\n            ChallengeName: 'DEVICE_PASSWORD_VERIFIER',\n            ClientId: _this6.pool.getClientId(),\n            ChallengeResponses: challengeResponses,\n            Session: data.Session\n          };\n\n          if (_this6.getUserContextData()) {\n            jsonReqResp.UserContextData = _this6.getUserContextData();\n          }\n\n          _this6.client.request('RespondToAuthChallenge', jsonReqResp, function (errAuthenticate, dataAuthenticate) {\n            if (errAuthenticate) {\n              return callback.onFailure(errAuthenticate);\n            }\n\n            _this6.signInUserSession = _this6.getCognitoUserSession(dataAuthenticate.AuthenticationResult);\n\n            _this6.cacheTokens();\n\n            return callback.onSuccess(_this6.signInUserSession);\n          });\n\n          return undefined; // getPasswordAuthenticationKey callback end\n        });\n        return undefined;\n      }); // getLargeAValue callback end\n\n    });\n  };\n  /**\n   * This is used for a certain user to confirm the registration by using a confirmation code\n   * @param {string} confirmationCode Code entered by user.\n   * @param {bool} forceAliasCreation Allow migrating from an existing email / phone number.\n   * @param {nodeCallback<string>} callback Called on success or error.\n   * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.confirmRegistration = function confirmRegistration(confirmationCode, forceAliasCreation, callback, clientMetadata) {\n    var jsonReq = {\n      ClientId: this.pool.getClientId(),\n      ConfirmationCode: confirmationCode,\n      Username: this.username,\n      ForceAliasCreation: forceAliasCreation,\n      ClientMetadata: clientMetadata\n    };\n\n    if (this.getUserContextData()) {\n      jsonReq.UserContextData = this.getUserContextData();\n    }\n\n    this.client.request('ConfirmSignUp', jsonReq, function (err) {\n      if (err) {\n        return callback(err, null);\n      }\n\n      return callback(null, 'SUCCESS');\n    });\n  };\n  /**\n   * This is used by the user once he has the responses to a custom challenge\n   * @param {string} answerChallenge The custom challenge answer.\n   * @param {object} callback Result callback map.\n   * @param {onFailure} callback.onFailure Called on any error.\n   * @param {customChallenge} callback.customChallenge\n   *    Custom challenge response required to continue.\n   * @param {authSuccess} callback.onSuccess Called on success with the new session.\n   * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.sendCustomChallengeAnswer = function sendCustomChallengeAnswer(answerChallenge, callback, clientMetadata) {\n    var _this7 = this;\n\n    var challengeResponses = {};\n    challengeResponses.USERNAME = this.username;\n    challengeResponses.ANSWER = answerChallenge;\n    var authenticationHelper = new AuthenticationHelper(this.pool.getUserPoolId().split('_')[1]);\n    this.getCachedDeviceKeyAndPassword();\n\n    if (this.deviceKey != null) {\n      challengeResponses.DEVICE_KEY = this.deviceKey;\n    }\n\n    var jsonReq = {\n      ChallengeName: 'CUSTOM_CHALLENGE',\n      ChallengeResponses: challengeResponses,\n      ClientId: this.pool.getClientId(),\n      Session: this.Session,\n      ClientMetadata: clientMetadata\n    };\n\n    if (this.getUserContextData()) {\n      jsonReq.UserContextData = this.getUserContextData();\n    }\n\n    this.client.request('RespondToAuthChallenge', jsonReq, function (err, data) {\n      if (err) {\n        return callback.onFailure(err);\n      }\n\n      return _this7.authenticateUserInternal(data, authenticationHelper, callback);\n    });\n  };\n  /**\n   * This is used by the user once he has an MFA code\n   * @param {string} confirmationCode The MFA code entered by the user.\n   * @param {object} callback Result callback map.\n   * @param {string} mfaType The mfa we are replying to.\n   * @param {onFailure} callback.onFailure Called on any error.\n   * @param {authSuccess} callback.onSuccess Called on success with the new session.\n   * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.sendMFACode = function sendMFACode(confirmationCode, callback, mfaType, clientMetadata) {\n    var _this8 = this;\n\n    var challengeResponses = {};\n    challengeResponses.USERNAME = this.username;\n    challengeResponses.SMS_MFA_CODE = confirmationCode;\n    var mfaTypeSelection = mfaType || 'SMS_MFA';\n\n    if (mfaTypeSelection === 'SOFTWARE_TOKEN_MFA') {\n      challengeResponses.SOFTWARE_TOKEN_MFA_CODE = confirmationCode;\n    }\n\n    if (this.deviceKey != null) {\n      challengeResponses.DEVICE_KEY = this.deviceKey;\n    }\n\n    var jsonReq = {\n      ChallengeName: mfaTypeSelection,\n      ChallengeResponses: challengeResponses,\n      ClientId: this.pool.getClientId(),\n      Session: this.Session,\n      ClientMetadata: clientMetadata\n    };\n\n    if (this.getUserContextData()) {\n      jsonReq.UserContextData = this.getUserContextData();\n    }\n\n    this.client.request('RespondToAuthChallenge', jsonReq, function (err, dataAuthenticate) {\n      if (err) {\n        return callback.onFailure(err);\n      }\n\n      var challengeName = dataAuthenticate.ChallengeName;\n\n      if (challengeName === 'DEVICE_SRP_AUTH') {\n        _this8.getDeviceResponse(callback);\n\n        return undefined;\n      }\n\n      _this8.signInUserSession = _this8.getCognitoUserSession(dataAuthenticate.AuthenticationResult);\n\n      _this8.cacheTokens();\n\n      if (dataAuthenticate.AuthenticationResult.NewDeviceMetadata == null) {\n        return callback.onSuccess(_this8.signInUserSession);\n      }\n\n      var authenticationHelper = new AuthenticationHelper(_this8.pool.getUserPoolId().split('_')[1]);\n      authenticationHelper.generateHashDevice(dataAuthenticate.AuthenticationResult.NewDeviceMetadata.DeviceGroupKey, dataAuthenticate.AuthenticationResult.NewDeviceMetadata.DeviceKey, function (errGenHash) {\n        if (errGenHash) {\n          return callback.onFailure(errGenHash);\n        }\n\n        var deviceSecretVerifierConfig = {\n          Salt: Buffer.from(authenticationHelper.getSaltDevices(), 'hex').toString('base64'),\n          PasswordVerifier: Buffer.from(authenticationHelper.getVerifierDevices(), 'hex').toString('base64')\n        };\n        _this8.verifierDevices = deviceSecretVerifierConfig.PasswordVerifier;\n        _this8.deviceGroupKey = dataAuthenticate.AuthenticationResult.NewDeviceMetadata.DeviceGroupKey;\n        _this8.randomPassword = authenticationHelper.getRandomPassword();\n\n        _this8.client.request('ConfirmDevice', {\n          DeviceKey: dataAuthenticate.AuthenticationResult.NewDeviceMetadata.DeviceKey,\n          AccessToken: _this8.signInUserSession.getAccessToken().getJwtToken(),\n          DeviceSecretVerifierConfig: deviceSecretVerifierConfig,\n          DeviceName: navigator.userAgent\n        }, function (errConfirm, dataConfirm) {\n          if (errConfirm) {\n            return callback.onFailure(errConfirm);\n          }\n\n          _this8.deviceKey = dataAuthenticate.AuthenticationResult.NewDeviceMetadata.DeviceKey;\n\n          _this8.cacheDeviceKeyAndPassword();\n\n          if (dataConfirm.UserConfirmationNecessary === true) {\n            return callback.onSuccess(_this8.signInUserSession, dataConfirm.UserConfirmationNecessary);\n          }\n\n          return callback.onSuccess(_this8.signInUserSession);\n        });\n\n        return undefined;\n      });\n      return undefined;\n    });\n  };\n  /**\n   * This is used by an authenticated user to change the current password\n   * @param {string} oldUserPassword The current password.\n   * @param {string} newUserPassword The requested new password.\n   * @param {nodeCallback<string>} callback Called on success or error.\n   * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.changePassword = function changePassword(oldUserPassword, newUserPassword, callback, clientMetadata) {\n    if (!(this.signInUserSession != null && this.signInUserSession.isValid())) {\n      return callback(new Error('User is not authenticated'), null);\n    }\n\n    this.client.request('ChangePassword', {\n      PreviousPassword: oldUserPassword,\n      ProposedPassword: newUserPassword,\n      AccessToken: this.signInUserSession.getAccessToken().getJwtToken(),\n      ClientMetadata: clientMetadata\n    }, function (err) {\n      if (err) {\n        return callback(err, null);\n      }\n\n      return callback(null, 'SUCCESS');\n    });\n    return undefined;\n  };\n  /**\n   * This is used by an authenticated user to enable MFA for itself\n   * @deprecated\n   * @param {nodeCallback<string>} callback Called on success or error.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.enableMFA = function enableMFA(callback) {\n    if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n      return callback(new Error('User is not authenticated'), null);\n    }\n\n    var mfaOptions = [];\n    var mfaEnabled = {\n      DeliveryMedium: 'SMS',\n      AttributeName: 'phone_number'\n    };\n    mfaOptions.push(mfaEnabled);\n    this.client.request('SetUserSettings', {\n      MFAOptions: mfaOptions,\n      AccessToken: this.signInUserSession.getAccessToken().getJwtToken()\n    }, function (err) {\n      if (err) {\n        return callback(err, null);\n      }\n\n      return callback(null, 'SUCCESS');\n    });\n    return undefined;\n  };\n  /**\n   * This is used by an authenticated user to enable MFA for itself\n   * @param {IMfaSettings} smsMfaSettings the sms mfa settings\n   * @param {IMFASettings} softwareTokenMfaSettings the software token mfa settings\n   * @param {nodeCallback<string>} callback Called on success or error.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.setUserMfaPreference = function setUserMfaPreference(smsMfaSettings, softwareTokenMfaSettings, callback) {\n    if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n      return callback(new Error('User is not authenticated'), null);\n    }\n\n    this.client.request('SetUserMFAPreference', {\n      SMSMfaSettings: smsMfaSettings,\n      SoftwareTokenMfaSettings: softwareTokenMfaSettings,\n      AccessToken: this.signInUserSession.getAccessToken().getJwtToken()\n    }, function (err) {\n      if (err) {\n        return callback(err, null);\n      }\n\n      return callback(null, 'SUCCESS');\n    });\n    return undefined;\n  };\n  /**\n   * This is used by an authenticated user to disable MFA for itself\n   * @deprecated\n   * @param {nodeCallback<string>} callback Called on success or error.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.disableMFA = function disableMFA(callback) {\n    if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n      return callback(new Error('User is not authenticated'), null);\n    }\n\n    var mfaOptions = [];\n    this.client.request('SetUserSettings', {\n      MFAOptions: mfaOptions,\n      AccessToken: this.signInUserSession.getAccessToken().getJwtToken()\n    }, function (err) {\n      if (err) {\n        return callback(err, null);\n      }\n\n      return callback(null, 'SUCCESS');\n    });\n    return undefined;\n  };\n  /**\n   * This is used by an authenticated user to delete itself\n   * @param {nodeCallback<string>} callback Called on success or error.\n   * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.deleteUser = function deleteUser(callback, clientMetadata) {\n    var _this9 = this;\n\n    if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n      return callback(new Error('User is not authenticated'), null);\n    }\n\n    this.client.request('DeleteUser', {\n      AccessToken: this.signInUserSession.getAccessToken().getJwtToken(),\n      ClientMetadata: clientMetadata\n    }, function (err) {\n      if (err) {\n        return callback(err, null);\n      }\n\n      _this9.clearCachedUser();\n\n      return callback(null, 'SUCCESS');\n    });\n    return undefined;\n  };\n  /**\n   * @typedef {CognitoUserAttribute | { Name:string, Value:string }} AttributeArg\n   */\n\n  /**\n   * This is used by an authenticated user to change a list of attributes\n   * @param {AttributeArg[]} attributes A list of the new user attributes.\n   * @param {nodeCallback<string>} callback Called on success or error.\n   * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.updateAttributes = function updateAttributes(attributes, callback, clientMetadata) {\n    if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n      return callback(new Error('User is not authenticated'), null);\n    }\n\n    this.client.request('UpdateUserAttributes', {\n      AccessToken: this.signInUserSession.getAccessToken().getJwtToken(),\n      UserAttributes: attributes,\n      ClientMetadata: clientMetadata\n    }, function (err) {\n      if (err) {\n        return callback(err, null);\n      }\n\n      return callback(null, 'SUCCESS');\n    });\n    return undefined;\n  };\n  /**\n   * This is used by an authenticated user to get a list of attributes\n   * @param {nodeCallback<CognitoUserAttribute[]>} callback Called on success or error.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.getUserAttributes = function getUserAttributes(callback) {\n    if (!(this.signInUserSession != null && this.signInUserSession.isValid())) {\n      return callback(new Error('User is not authenticated'), null);\n    }\n\n    this.client.request('GetUser', {\n      AccessToken: this.signInUserSession.getAccessToken().getJwtToken()\n    }, function (err, userData) {\n      if (err) {\n        return callback(err, null);\n      }\n\n      var attributeList = [];\n\n      for (var i = 0; i < userData.UserAttributes.length; i++) {\n        var attribute = {\n          Name: userData.UserAttributes[i].Name,\n          Value: userData.UserAttributes[i].Value\n        };\n        var userAttribute = new CognitoUserAttribute(attribute);\n        attributeList.push(userAttribute);\n      }\n\n      return callback(null, attributeList);\n    });\n    return undefined;\n  };\n  /**\n   * This is used by an authenticated user to get the MFAOptions\n   * @param {nodeCallback<MFAOptions>} callback Called on success or error.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.getMFAOptions = function getMFAOptions(callback) {\n    if (!(this.signInUserSession != null && this.signInUserSession.isValid())) {\n      return callback(new Error('User is not authenticated'), null);\n    }\n\n    this.client.request('GetUser', {\n      AccessToken: this.signInUserSession.getAccessToken().getJwtToken()\n    }, function (err, userData) {\n      if (err) {\n        return callback(err, null);\n      }\n\n      return callback(null, userData.MFAOptions);\n    });\n    return undefined;\n  };\n  /**\n   * This is used by an authenticated users to get the userData\n   * @param {nodeCallback<UserData>} callback Called on success or error.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.getUserData = function getUserData(callback, params) {\n    var _this10 = this;\n\n    if (!(this.signInUserSession != null && this.signInUserSession.isValid())) {\n      this.clearCachedUserData();\n      return callback(new Error('User is not authenticated'), null);\n    }\n\n    var bypassCache = params ? params.bypassCache : false;\n    var userData = this.storage.getItem(this.userDataKey); // get the cached user data\n\n    if (!userData || bypassCache) {\n      this.client.request('GetUser', {\n        AccessToken: this.signInUserSession.getAccessToken().getJwtToken()\n      }, function (err, latestUserData) {\n        if (err) {\n          return callback(err, null);\n        }\n\n        _this10.cacheUserData(latestUserData);\n\n        var refresh = _this10.signInUserSession.getRefreshToken();\n\n        if (refresh && refresh.getToken()) {\n          _this10.refreshSession(refresh, function (refreshError, data) {\n            if (refreshError) {\n              return callback(refreshError, null);\n            }\n\n            return callback(null, latestUserData);\n          });\n        } else {\n          return callback(null, latestUserData);\n        }\n      });\n    } else {\n      try {\n        return callback(null, JSON.parse(userData));\n      } catch (err) {\n        this.clearCachedUserData();\n        return callback(err, null);\n      }\n    }\n\n    return undefined;\n  };\n  /**\n   * This is used by an authenticated user to delete a list of attributes\n   * @param {string[]} attributeList Names of the attributes to delete.\n   * @param {nodeCallback<string>} callback Called on success or error.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.deleteAttributes = function deleteAttributes(attributeList, callback) {\n    if (!(this.signInUserSession != null && this.signInUserSession.isValid())) {\n      return callback(new Error('User is not authenticated'), null);\n    }\n\n    this.client.request('DeleteUserAttributes', {\n      UserAttributeNames: attributeList,\n      AccessToken: this.signInUserSession.getAccessToken().getJwtToken()\n    }, function (err) {\n      if (err) {\n        return callback(err, null);\n      }\n\n      return callback(null, 'SUCCESS');\n    });\n    return undefined;\n  };\n  /**\n   * This is used by a user to resend a confirmation code\n   * @param {nodeCallback<string>} callback Called on success or error.\n   * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.resendConfirmationCode = function resendConfirmationCode(callback, clientMetadata) {\n    var jsonReq = {\n      ClientId: this.pool.getClientId(),\n      Username: this.username,\n      ClientMetadata: clientMetadata\n    };\n    this.client.request('ResendConfirmationCode', jsonReq, function (err, result) {\n      if (err) {\n        return callback(err, null);\n      }\n\n      return callback(null, result);\n    });\n  };\n  /**\n   * This is used to get a session, either from the session object\n   * or from  the local storage, or by using a refresh token\n   *\n   * @param {nodeCallback<CognitoUserSession>} callback Called on success or error.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.getSession = function getSession(callback) {\n    if (this.username == null) {\n      return callback(new Error('Username is null. Cannot retrieve a new session'), null);\n    }\n\n    if (this.signInUserSession != null && this.signInUserSession.isValid()) {\n      return callback(null, this.signInUserSession);\n    }\n\n    var keyPrefix = 'CognitoIdentityServiceProvider.' + this.pool.getClientId() + '.' + this.username;\n    var idTokenKey = keyPrefix + '.idToken';\n    var accessTokenKey = keyPrefix + '.accessToken';\n    var refreshTokenKey = keyPrefix + '.refreshToken';\n    var clockDriftKey = keyPrefix + '.clockDrift';\n\n    if (this.storage.getItem(idTokenKey)) {\n      var idToken = new CognitoIdToken({\n        IdToken: this.storage.getItem(idTokenKey)\n      });\n      var accessToken = new CognitoAccessToken({\n        AccessToken: this.storage.getItem(accessTokenKey)\n      });\n      var refreshToken = new CognitoRefreshToken({\n        RefreshToken: this.storage.getItem(refreshTokenKey)\n      });\n      var clockDrift = parseInt(this.storage.getItem(clockDriftKey), 0) || 0;\n      var sessionData = {\n        IdToken: idToken,\n        AccessToken: accessToken,\n        RefreshToken: refreshToken,\n        ClockDrift: clockDrift\n      };\n      var cachedSession = new CognitoUserSession(sessionData);\n\n      if (cachedSession.isValid()) {\n        this.signInUserSession = cachedSession;\n        return callback(null, this.signInUserSession);\n      }\n\n      if (!refreshToken.getToken()) {\n        return callback(new Error('Cannot retrieve a new session. Please authenticate.'), null);\n      }\n\n      this.refreshSession(refreshToken, callback);\n    } else {\n      callback(new Error('Local storage is missing an ID Token, Please authenticate'), null);\n    }\n\n    return undefined;\n  };\n  /**\n   * This uses the refreshToken to retrieve a new session\n   * @param {CognitoRefreshToken} refreshToken A previous session's refresh token.\n   * @param {nodeCallback<CognitoUserSession>} callback Called on success or error.\n   * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.refreshSession = function refreshSession(refreshToken, callback, clientMetadata) {\n    var _this11 = this;\n\n    var authParameters = {};\n    authParameters.REFRESH_TOKEN = refreshToken.getToken();\n    var keyPrefix = 'CognitoIdentityServiceProvider.' + this.pool.getClientId();\n    var lastUserKey = keyPrefix + '.LastAuthUser';\n\n    if (this.storage.getItem(lastUserKey)) {\n      this.username = this.storage.getItem(lastUserKey);\n      var deviceKeyKey = keyPrefix + '.' + this.username + '.deviceKey';\n      this.deviceKey = this.storage.getItem(deviceKeyKey);\n      authParameters.DEVICE_KEY = this.deviceKey;\n    }\n\n    var jsonReq = {\n      ClientId: this.pool.getClientId(),\n      AuthFlow: 'REFRESH_TOKEN_AUTH',\n      AuthParameters: authParameters,\n      ClientMetadata: clientMetadata\n    };\n\n    if (this.getUserContextData()) {\n      jsonReq.UserContextData = this.getUserContextData();\n    }\n\n    this.client.request('InitiateAuth', jsonReq, function (err, authResult) {\n      if (err) {\n        if (err.code === 'NotAuthorizedException') {\n          _this11.clearCachedUser();\n        }\n\n        return callback(err, null);\n      }\n\n      if (authResult) {\n        var authenticationResult = authResult.AuthenticationResult;\n\n        if (!Object.prototype.hasOwnProperty.call(authenticationResult, 'RefreshToken')) {\n          authenticationResult.RefreshToken = refreshToken.getToken();\n        }\n\n        _this11.signInUserSession = _this11.getCognitoUserSession(authenticationResult);\n\n        _this11.cacheTokens();\n\n        return callback(null, _this11.signInUserSession);\n      }\n\n      return undefined;\n    });\n  };\n  /**\n   * This is used to save the session tokens to local storage\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.cacheTokens = function cacheTokens() {\n    var keyPrefix = 'CognitoIdentityServiceProvider.' + this.pool.getClientId();\n    var idTokenKey = keyPrefix + '.' + this.username + '.idToken';\n    var accessTokenKey = keyPrefix + '.' + this.username + '.accessToken';\n    var refreshTokenKey = keyPrefix + '.' + this.username + '.refreshToken';\n    var clockDriftKey = keyPrefix + '.' + this.username + '.clockDrift';\n    var lastUserKey = keyPrefix + '.LastAuthUser';\n    this.storage.setItem(idTokenKey, this.signInUserSession.getIdToken().getJwtToken());\n    this.storage.setItem(accessTokenKey, this.signInUserSession.getAccessToken().getJwtToken());\n    this.storage.setItem(refreshTokenKey, this.signInUserSession.getRefreshToken().getToken());\n    this.storage.setItem(clockDriftKey, '' + this.signInUserSession.getClockDrift());\n    this.storage.setItem(lastUserKey, this.username);\n  };\n  /**\n   * This is to cache user data\n   */\n\n\n  CognitoUser.prototype.cacheUserData = function cacheUserData(userData) {\n    this.storage.setItem(this.userDataKey, JSON.stringify(userData));\n  };\n  /**\n   * This is to remove cached user data\n   */\n\n\n  CognitoUser.prototype.clearCachedUserData = function clearCachedUserData() {\n    this.storage.removeItem(this.userDataKey);\n  };\n\n  CognitoUser.prototype.clearCachedUser = function clearCachedUser() {\n    this.clearCachedTokens();\n    this.clearCachedUserData();\n  };\n  /**\n   * This is used to cache the device key and device group and device password\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.cacheDeviceKeyAndPassword = function cacheDeviceKeyAndPassword() {\n    var keyPrefix = 'CognitoIdentityServiceProvider.' + this.pool.getClientId() + '.' + this.username;\n    var deviceKeyKey = keyPrefix + '.deviceKey';\n    var randomPasswordKey = keyPrefix + '.randomPasswordKey';\n    var deviceGroupKeyKey = keyPrefix + '.deviceGroupKey';\n    this.storage.setItem(deviceKeyKey, this.deviceKey);\n    this.storage.setItem(randomPasswordKey, this.randomPassword);\n    this.storage.setItem(deviceGroupKeyKey, this.deviceGroupKey);\n  };\n  /**\n   * This is used to get current device key and device group and device password\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.getCachedDeviceKeyAndPassword = function getCachedDeviceKeyAndPassword() {\n    var keyPrefix = 'CognitoIdentityServiceProvider.' + this.pool.getClientId() + '.' + this.username;\n    var deviceKeyKey = keyPrefix + '.deviceKey';\n    var randomPasswordKey = keyPrefix + '.randomPasswordKey';\n    var deviceGroupKeyKey = keyPrefix + '.deviceGroupKey';\n\n    if (this.storage.getItem(deviceKeyKey)) {\n      this.deviceKey = this.storage.getItem(deviceKeyKey);\n      this.randomPassword = this.storage.getItem(randomPasswordKey);\n      this.deviceGroupKey = this.storage.getItem(deviceGroupKeyKey);\n    }\n  };\n  /**\n   * This is used to clear the device key info from local storage\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.clearCachedDeviceKeyAndPassword = function clearCachedDeviceKeyAndPassword() {\n    var keyPrefix = 'CognitoIdentityServiceProvider.' + this.pool.getClientId() + '.' + this.username;\n    var deviceKeyKey = keyPrefix + '.deviceKey';\n    var randomPasswordKey = keyPrefix + '.randomPasswordKey';\n    var deviceGroupKeyKey = keyPrefix + '.deviceGroupKey';\n    this.storage.removeItem(deviceKeyKey);\n    this.storage.removeItem(randomPasswordKey);\n    this.storage.removeItem(deviceGroupKeyKey);\n  };\n  /**\n   * This is used to clear the session tokens from local storage\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.clearCachedTokens = function clearCachedTokens() {\n    var keyPrefix = 'CognitoIdentityServiceProvider.' + this.pool.getClientId();\n    var idTokenKey = keyPrefix + '.' + this.username + '.idToken';\n    var accessTokenKey = keyPrefix + '.' + this.username + '.accessToken';\n    var refreshTokenKey = keyPrefix + '.' + this.username + '.refreshToken';\n    var lastUserKey = keyPrefix + '.LastAuthUser';\n    var clockDriftKey = keyPrefix + '.' + this.username + '.clockDrift';\n    this.storage.removeItem(idTokenKey);\n    this.storage.removeItem(accessTokenKey);\n    this.storage.removeItem(refreshTokenKey);\n    this.storage.removeItem(lastUserKey);\n    this.storage.removeItem(clockDriftKey);\n  };\n  /**\n   * This is used to build a user session from tokens retrieved in the authentication result\n   * @param {object} authResult Successful auth response from server.\n   * @returns {CognitoUserSession} The new user session.\n   * @private\n   */\n\n\n  CognitoUser.prototype.getCognitoUserSession = function getCognitoUserSession(authResult) {\n    var idToken = new CognitoIdToken(authResult);\n    var accessToken = new CognitoAccessToken(authResult);\n    var refreshToken = new CognitoRefreshToken(authResult);\n    var sessionData = {\n      IdToken: idToken,\n      AccessToken: accessToken,\n      RefreshToken: refreshToken\n    };\n    return new CognitoUserSession(sessionData);\n  };\n  /**\n   * This is used to initiate a forgot password request\n   * @param {object} callback Result callback map.\n   * @param {onFailure} callback.onFailure Called on any error.\n   * @param {inputVerificationCode?} callback.inputVerificationCode\n   *    Optional callback raised instead of onSuccess with response data.\n   * @param {onSuccess} callback.onSuccess Called on success.\n   * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.forgotPassword = function forgotPassword(callback, clientMetadata) {\n    var jsonReq = {\n      ClientId: this.pool.getClientId(),\n      Username: this.username,\n      ClientMetadata: clientMetadata\n    };\n\n    if (this.getUserContextData()) {\n      jsonReq.UserContextData = this.getUserContextData();\n    }\n\n    this.client.request('ForgotPassword', jsonReq, function (err, data) {\n      if (err) {\n        return callback.onFailure(err);\n      }\n\n      if (typeof callback.inputVerificationCode === 'function') {\n        return callback.inputVerificationCode(data);\n      }\n\n      return callback.onSuccess(data);\n    });\n  };\n  /**\n   * This is used to confirm a new password using a confirmationCode\n   * @param {string} confirmationCode Code entered by user.\n   * @param {string} newPassword Confirm new password.\n   * @param {object} callback Result callback map.\n   * @param {onFailure} callback.onFailure Called on any error.\n   * @param {onSuccess<void>} callback.onSuccess Called on success.\n   * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.confirmPassword = function confirmPassword(confirmationCode, newPassword, callback, clientMetadata) {\n    var jsonReq = {\n      ClientId: this.pool.getClientId(),\n      Username: this.username,\n      ConfirmationCode: confirmationCode,\n      Password: newPassword,\n      ClientMetadata: clientMetadata\n    };\n\n    if (this.getUserContextData()) {\n      jsonReq.UserContextData = this.getUserContextData();\n    }\n\n    this.client.request('ConfirmForgotPassword', jsonReq, function (err) {\n      if (err) {\n        return callback.onFailure(err);\n      }\n\n      return callback.onSuccess();\n    });\n  };\n  /**\n   * This is used to initiate an attribute confirmation request\n   * @param {string} attributeName User attribute that needs confirmation.\n   * @param {object} callback Result callback map.\n   * @param {onFailure} callback.onFailure Called on any error.\n   * @param {inputVerificationCode} callback.inputVerificationCode Called on success.\n   * @param {ClientMetadata} clientMetadata object which is passed from client to Cognito Lambda trigger\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.getAttributeVerificationCode = function getAttributeVerificationCode(attributeName, callback, clientMetadata) {\n    if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n      return callback.onFailure(new Error('User is not authenticated'));\n    }\n\n    this.client.request('GetUserAttributeVerificationCode', {\n      AttributeName: attributeName,\n      AccessToken: this.signInUserSession.getAccessToken().getJwtToken(),\n      ClientMetadata: clientMetadata\n    }, function (err, data) {\n      if (err) {\n        return callback.onFailure(err);\n      }\n\n      if (typeof callback.inputVerificationCode === 'function') {\n        return callback.inputVerificationCode(data);\n      }\n\n      return callback.onSuccess();\n    });\n    return undefined;\n  };\n  /**\n   * This is used to confirm an attribute using a confirmation code\n   * @param {string} attributeName Attribute being confirmed.\n   * @param {string} confirmationCode Code entered by user.\n   * @param {object} callback Result callback map.\n   * @param {onFailure} callback.onFailure Called on any error.\n   * @param {onSuccess<string>} callback.onSuccess Called on success.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.verifyAttribute = function verifyAttribute(attributeName, confirmationCode, callback) {\n    if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n      return callback.onFailure(new Error('User is not authenticated'));\n    }\n\n    this.client.request('VerifyUserAttribute', {\n      AttributeName: attributeName,\n      Code: confirmationCode,\n      AccessToken: this.signInUserSession.getAccessToken().getJwtToken()\n    }, function (err) {\n      if (err) {\n        return callback.onFailure(err);\n      }\n\n      return callback.onSuccess('SUCCESS');\n    });\n    return undefined;\n  };\n  /**\n   * This is used to get the device information using the current device key\n   * @param {object} callback Result callback map.\n   * @param {onFailure} callback.onFailure Called on any error.\n   * @param {onSuccess<*>} callback.onSuccess Called on success with device data.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.getDevice = function getDevice(callback) {\n    if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n      return callback.onFailure(new Error('User is not authenticated'));\n    }\n\n    this.client.request('GetDevice', {\n      AccessToken: this.signInUserSession.getAccessToken().getJwtToken(),\n      DeviceKey: this.deviceKey\n    }, function (err, data) {\n      if (err) {\n        return callback.onFailure(err);\n      }\n\n      return callback.onSuccess(data);\n    });\n    return undefined;\n  };\n  /**\n   * This is used to forget a specific device\n   * @param {string} deviceKey Device key.\n   * @param {object} callback Result callback map.\n   * @param {onFailure} callback.onFailure Called on any error.\n   * @param {onSuccess<string>} callback.onSuccess Called on success.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.forgetSpecificDevice = function forgetSpecificDevice(deviceKey, callback) {\n    if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n      return callback.onFailure(new Error('User is not authenticated'));\n    }\n\n    this.client.request('ForgetDevice', {\n      AccessToken: this.signInUserSession.getAccessToken().getJwtToken(),\n      DeviceKey: deviceKey\n    }, function (err) {\n      if (err) {\n        return callback.onFailure(err);\n      }\n\n      return callback.onSuccess('SUCCESS');\n    });\n    return undefined;\n  };\n  /**\n   * This is used to forget the current device\n   * @param {object} callback Result callback map.\n   * @param {onFailure} callback.onFailure Called on any error.\n   * @param {onSuccess<string>} callback.onSuccess Called on success.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.forgetDevice = function forgetDevice(callback) {\n    var _this12 = this;\n\n    this.forgetSpecificDevice(this.deviceKey, {\n      onFailure: callback.onFailure,\n      onSuccess: function onSuccess(result) {\n        _this12.deviceKey = null;\n        _this12.deviceGroupKey = null;\n        _this12.randomPassword = null;\n\n        _this12.clearCachedDeviceKeyAndPassword();\n\n        return callback.onSuccess(result);\n      }\n    });\n  };\n  /**\n   * This is used to set the device status as remembered\n   * @param {object} callback Result callback map.\n   * @param {onFailure} callback.onFailure Called on any error.\n   * @param {onSuccess<string>} callback.onSuccess Called on success.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.setDeviceStatusRemembered = function setDeviceStatusRemembered(callback) {\n    if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n      return callback.onFailure(new Error('User is not authenticated'));\n    }\n\n    this.client.request('UpdateDeviceStatus', {\n      AccessToken: this.signInUserSession.getAccessToken().getJwtToken(),\n      DeviceKey: this.deviceKey,\n      DeviceRememberedStatus: 'remembered'\n    }, function (err) {\n      if (err) {\n        return callback.onFailure(err);\n      }\n\n      return callback.onSuccess('SUCCESS');\n    });\n    return undefined;\n  };\n  /**\n   * This is used to set the device status as not remembered\n   * @param {object} callback Result callback map.\n   * @param {onFailure} callback.onFailure Called on any error.\n   * @param {onSuccess<string>} callback.onSuccess Called on success.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.setDeviceStatusNotRemembered = function setDeviceStatusNotRemembered(callback) {\n    if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n      return callback.onFailure(new Error('User is not authenticated'));\n    }\n\n    this.client.request('UpdateDeviceStatus', {\n      AccessToken: this.signInUserSession.getAccessToken().getJwtToken(),\n      DeviceKey: this.deviceKey,\n      DeviceRememberedStatus: 'not_remembered'\n    }, function (err) {\n      if (err) {\n        return callback.onFailure(err);\n      }\n\n      return callback.onSuccess('SUCCESS');\n    });\n    return undefined;\n  };\n  /**\n   * This is used to list all devices for a user\n   *\n   * @param {int} limit the number of devices returned in a call\n   * @param {string} paginationToken the pagination token in case any was returned before\n   * @param {object} callback Result callback map.\n   * @param {onFailure} callback.onFailure Called on any error.\n   * @param {onSuccess<*>} callback.onSuccess Called on success with device list.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.listDevices = function listDevices(limit, paginationToken, callback) {\n    if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n      return callback.onFailure(new Error('User is not authenticated'));\n    }\n\n    this.client.request('ListDevices', {\n      AccessToken: this.signInUserSession.getAccessToken().getJwtToken(),\n      Limit: limit,\n      PaginationToken: paginationToken\n    }, function (err, data) {\n      if (err) {\n        return callback.onFailure(err);\n      }\n\n      return callback.onSuccess(data);\n    });\n    return undefined;\n  };\n  /**\n   * This is used to globally revoke all tokens issued to a user\n   * @param {object} callback Result callback map.\n   * @param {onFailure} callback.onFailure Called on any error.\n   * @param {onSuccess<string>} callback.onSuccess Called on success.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.globalSignOut = function globalSignOut(callback) {\n    var _this13 = this;\n\n    if (this.signInUserSession == null || !this.signInUserSession.isValid()) {\n      return callback.onFailure(new Error('User is not authenticated'));\n    }\n\n    this.client.request('GlobalSignOut', {\n      AccessToken: this.signInUserSession.getAccessToken().getJwtToken()\n    }, function (err) {\n      if (err) {\n        return callback.onFailure(err);\n      }\n\n      _this13.clearCachedUser();\n\n      return callback.onSuccess('SUCCESS');\n    });\n    return undefined;\n  };\n  /**\n   * This is used for the user to signOut of the application and clear the cached tokens.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.signOut = function signOut() {\n    this.signInUserSession = null;\n    this.clearCachedUser();\n  };\n  /**\n   * This is used by a user trying to select a given MFA\n   * @param {string} answerChallenge the mfa the user wants\n   * @param {nodeCallback<string>} callback Called on success or error.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.sendMFASelectionAnswer = function sendMFASelectionAnswer(answerChallenge, callback) {\n    var _this14 = this;\n\n    var challengeResponses = {};\n    challengeResponses.USERNAME = this.username;\n    challengeResponses.ANSWER = answerChallenge;\n    var jsonReq = {\n      ChallengeName: 'SELECT_MFA_TYPE',\n      ChallengeResponses: challengeResponses,\n      ClientId: this.pool.getClientId(),\n      Session: this.Session\n    };\n\n    if (this.getUserContextData()) {\n      jsonReq.UserContextData = this.getUserContextData();\n    }\n\n    this.client.request('RespondToAuthChallenge', jsonReq, function (err, data) {\n      if (err) {\n        return callback.onFailure(err);\n      }\n\n      _this14.Session = data.Session;\n\n      if (answerChallenge === 'SMS_MFA') {\n        return callback.mfaRequired(data.challengeName, data.challengeParameters);\n      }\n\n      if (answerChallenge === 'SOFTWARE_TOKEN_MFA') {\n        return callback.totpRequired(data.challengeName, data.challengeParameters);\n      }\n\n      return undefined;\n    });\n  };\n  /**\n   * This returns the user context data for advanced security feature.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.getUserContextData = function getUserContextData() {\n    var pool = this.pool;\n    return pool.getUserContextData(this.username);\n  };\n  /**\n   * This is used by an authenticated or a user trying to authenticate to associate a TOTP MFA\n   * @param {nodeCallback<string>} callback Called on success or error.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.associateSoftwareToken = function associateSoftwareToken(callback) {\n    var _this15 = this;\n\n    if (!(this.signInUserSession != null && this.signInUserSession.isValid())) {\n      this.client.request('AssociateSoftwareToken', {\n        Session: this.Session\n      }, function (err, data) {\n        if (err) {\n          return callback.onFailure(err);\n        }\n\n        _this15.Session = data.Session;\n        return callback.associateSecretCode(data.SecretCode);\n      });\n    } else {\n      this.client.request('AssociateSoftwareToken', {\n        AccessToken: this.signInUserSession.getAccessToken().getJwtToken()\n      }, function (err, data) {\n        if (err) {\n          return callback.onFailure(err);\n        }\n\n        return callback.associateSecretCode(data.SecretCode);\n      });\n    }\n  };\n  /**\n   * This is used by an authenticated or a user trying to authenticate to verify a TOTP MFA\n   * @param {string} totpCode The MFA code entered by the user.\n   * @param {string} friendlyDeviceName The device name we are assigning to the device.\n   * @param {nodeCallback<string>} callback Called on success or error.\n   * @returns {void}\n   */\n\n\n  CognitoUser.prototype.verifySoftwareToken = function verifySoftwareToken(totpCode, friendlyDeviceName, callback) {\n    var _this16 = this;\n\n    if (!(this.signInUserSession != null && this.signInUserSession.isValid())) {\n      this.client.request('VerifySoftwareToken', {\n        Session: this.Session,\n        UserCode: totpCode,\n        FriendlyDeviceName: friendlyDeviceName\n      }, function (err, data) {\n        if (err) {\n          return callback.onFailure(err);\n        }\n\n        _this16.Session = data.Session;\n        var challengeResponses = {};\n        challengeResponses.USERNAME = _this16.username;\n        var jsonReq = {\n          ChallengeName: 'MFA_SETUP',\n          ClientId: _this16.pool.getClientId(),\n          ChallengeResponses: challengeResponses,\n          Session: _this16.Session\n        };\n\n        if (_this16.getUserContextData()) {\n          jsonReq.UserContextData = _this16.getUserContextData();\n        }\n\n        _this16.client.request('RespondToAuthChallenge', jsonReq, function (errRespond, dataRespond) {\n          if (errRespond) {\n            return callback.onFailure(errRespond);\n          }\n\n          _this16.signInUserSession = _this16.getCognitoUserSession(dataRespond.AuthenticationResult);\n\n          _this16.cacheTokens();\n\n          return callback.onSuccess(_this16.signInUserSession);\n        });\n\n        return undefined;\n      });\n    } else {\n      this.client.request('VerifySoftwareToken', {\n        AccessToken: this.signInUserSession.getAccessToken().getJwtToken(),\n        UserCode: totpCode,\n        FriendlyDeviceName: friendlyDeviceName\n      }, function (err, data) {\n        if (err) {\n          return callback.onFailure(err);\n        }\n\n        return callback.onSuccess(data);\n      });\n    }\n  };\n\n  return CognitoUser;\n}();\n\nexport default CognitoUser;","// class for defining the amzn user-agent\nexport default UserAgent; // constructor\n\nfunction UserAgent() {} // public\n\n\nUserAgent.prototype.userAgent = 'aws-amplify/0.1.x js';","function _classCallCheck(instance, Constructor) {\n  if (!(instance instanceof Constructor)) {\n    throw new TypeError(\"Cannot call a class as a function\");\n  }\n}\n\nimport UserAgent from './UserAgent';\n/** @class */\n\nvar Client = function () {\n  /**\n   * Constructs a new AWS Cognito Identity Provider client object\n   * @param {string} region AWS region\n   * @param {string} endpoint endpoint\n   */\n  function Client(region, endpoint) {\n    _classCallCheck(this, Client);\n\n    this.endpoint = endpoint || 'https://cognito-idp.' + region + '.amazonaws.com/';\n    this.userAgent = UserAgent.prototype.userAgent || 'aws-amplify/0.1.x js';\n  }\n  /**\n   * Makes an unauthenticated request on AWS Cognito Identity Provider API\n   * using fetch\n   * @param {string} operation API operation\n   * @param {object} params Input parameters\n   * @param {function} callback Callback called when a response is returned\n   * @returns {void}\n   */\n\n\n  Client.prototype.request = function request(operation, params, callback) {\n    var headers = {\n      'Content-Type': 'application/x-amz-json-1.1',\n      'X-Amz-Target': 'AWSCognitoIdentityProviderService.' + operation,\n      'X-Amz-User-Agent': this.userAgent\n    };\n    var options = {\n      headers: headers,\n      method: 'POST',\n      mode: 'cors',\n      cache: 'no-cache',\n      body: JSON.stringify(params)\n    };\n    var response = void 0;\n    var responseJsonData = void 0;\n    fetch(this.endpoint, options).then(function (resp) {\n      response = resp;\n      return resp;\n    }, function (err) {\n      // If error happens here, the request failed\n      // if it is TypeError throw network error\n      if (err instanceof TypeError) {\n        throw new Error('Network error');\n      }\n\n      throw err;\n    }).then(function (resp) {\n      return resp.json().catch(function () {\n        return {};\n      });\n    }).then(function (data) {\n      // return parsed body stream\n      if (response.ok) return callback(null, data);\n      responseJsonData = data; // Taken from aws-sdk-js/lib/protocol/json.js\n      // eslint-disable-next-line no-underscore-dangle\n\n      var code = (data.__type || data.code).split('#').pop();\n      var error = {\n        code: code,\n        name: code,\n        message: data.message || data.Message || null\n      };\n      return callback(error);\n    }).catch(function (err) {\n      // first check if we have a service error\n      if (response && response.headers && response.headers.get('x-amzn-errortype')) {\n        try {\n          var code = response.headers.get('x-amzn-errortype').split(':')[0];\n          var error = {\n            code: code,\n            name: code,\n            statusCode: response.status,\n            message: response.status ? response.status.toString() : null\n          };\n          return callback(error);\n        } catch (ex) {\n          return callback(err);\n        } // otherwise check if error is Network error\n\n      } else if (err instanceof Error && err.message === 'Network error') {\n        var _error = {\n          code: 'NetworkError',\n          name: err.name,\n          message: err.message\n        };\n        return callback(_error);\n      } else {\n        return callback(err);\n      }\n    });\n  };\n\n  return Client;\n}();\n\nexport default Client;","function _classCallCheck(instance, Constructor) {\n  if (!(instance instanceof Constructor)) {\n    throw new TypeError(\"Cannot call a class as a function\");\n  }\n}\n/*!\n * Copyright 2016 Amazon.com,\n * Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Amazon Software License (the \"License\").\n * You may not use this file except in compliance with the\n * License. A copy of the License is located at\n *\n *     http://aws.amazon.com/asl/\n *\n * or in the \"license\" file accompanying this file. This file is\n * distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, express or implied. See the License\n * for the specific language governing permissions and\n * limitations under the License.\n */\n\n\nimport Client from './Client';\nimport CognitoUser from './CognitoUser';\nimport StorageHelper from './StorageHelper';\n/** @class */\n\nvar CognitoUserPool = function () {\n  /**\n   * Constructs a new CognitoUserPool object\n   * @param {object} data Creation options.\n   * @param {string} data.UserPoolId Cognito user pool id.\n   * @param {string} data.ClientId User pool application client id.\n   * @param {object} data.Storage Optional storage object.\n   * @param {boolean} data.AdvancedSecurityDataCollectionFlag Optional:\n   *        boolean flag indicating if the data collection is enabled\n   *        to support cognito advanced security features. By default, this\n   *        flag is set to true.\n   */\n  function CognitoUserPool(data) {\n    _classCallCheck(this, CognitoUserPool);\n\n    var _ref = data || {},\n        UserPoolId = _ref.UserPoolId,\n        ClientId = _ref.ClientId,\n        endpoint = _ref.endpoint,\n        AdvancedSecurityDataCollectionFlag = _ref.AdvancedSecurityDataCollectionFlag;\n\n    if (!UserPoolId || !ClientId) {\n      throw new Error('Both UserPoolId and ClientId are required.');\n    }\n\n    if (!/^[\\w-]+_.+$/.test(UserPoolId)) {\n      throw new Error('Invalid UserPoolId format.');\n    }\n\n    var region = UserPoolId.split('_')[0];\n    this.userPoolId = UserPoolId;\n    this.clientId = ClientId;\n    this.client = new Client(region, endpoint);\n    /**\n     * By default, AdvancedSecurityDataCollectionFlag is set to true,\n     * if no input value is provided.\n     */\n\n    this.advancedSecurityDataCollectionFlag = AdvancedSecurityDataCollectionFlag !== false;\n    this.storage = data.Storage || new StorageHelper().getStorage();\n  }\n  /**\n   * @returns {string} the user pool id\n   */\n\n\n  CognitoUserPool.prototype.getUserPoolId = function getUserPoolId() {\n    return this.userPoolId;\n  };\n  /**\n   * @returns {string} the client id\n   */\n\n\n  CognitoUserPool.prototype.getClientId = function getClientId() {\n    return this.clientId;\n  };\n  /**\n   * @typedef {object} SignUpResult\n   * @property {CognitoUser} user New user.\n   * @property {bool} userConfirmed If the user is already confirmed.\n   */\n\n  /**\n   * method for signing up a user\n   * @param {string} username User's username.\n   * @param {string} password Plain-text initial password entered by user.\n   * @param {(AttributeArg[])=} userAttributes New user attributes.\n   * @param {(AttributeArg[])=} validationData Application metadata.\n   * @param {(AttributeArg[])=} clientMetadata Client metadata.\n   * @param {nodeCallback<SignUpResult>} callback Called on error or with the new user.\n   * @returns {void}\n   */\n\n\n  CognitoUserPool.prototype.signUp = function signUp(username, password, userAttributes, validationData, callback, clientMetadata) {\n    var _this = this;\n\n    var jsonReq = {\n      ClientId: this.clientId,\n      Username: username,\n      Password: password,\n      UserAttributes: userAttributes,\n      ValidationData: validationData,\n      ClientMetadata: clientMetadata\n    };\n\n    if (this.getUserContextData(username)) {\n      jsonReq.UserContextData = this.getUserContextData(username);\n    }\n\n    this.client.request('SignUp', jsonReq, function (err, data) {\n      if (err) {\n        return callback(err, null);\n      }\n\n      var cognitoUser = {\n        Username: username,\n        Pool: _this,\n        Storage: _this.storage\n      };\n      var returnData = {\n        user: new CognitoUser(cognitoUser),\n        userConfirmed: data.UserConfirmed,\n        userSub: data.UserSub,\n        codeDeliveryDetails: data.CodeDeliveryDetails\n      };\n      return callback(null, returnData);\n    });\n  };\n  /**\n   * method for getting the current user of the application from the local storage\n   *\n   * @returns {CognitoUser} the user retrieved from storage\n   */\n\n\n  CognitoUserPool.prototype.getCurrentUser = function getCurrentUser() {\n    var lastUserKey = 'CognitoIdentityServiceProvider.' + this.clientId + '.LastAuthUser';\n    var lastAuthUser = this.storage.getItem(lastUserKey);\n\n    if (lastAuthUser) {\n      var cognitoUser = {\n        Username: lastAuthUser,\n        Pool: this,\n        Storage: this.storage\n      };\n      return new CognitoUser(cognitoUser);\n    }\n\n    return null;\n  };\n  /**\n   * This method returns the encoded data string used for cognito advanced security feature.\n   * This would be generated only when developer has included the JS used for collecting the\n   * data on their client. Please refer to documentation to know more about using AdvancedSecurity\n   * features\n   * @param {string} username the username for the context data\n   * @returns {string} the user context data\n   **/\n\n\n  CognitoUserPool.prototype.getUserContextData = function getUserContextData(username) {\n    if (typeof AmazonCognitoAdvancedSecurityData === 'undefined') {\n      return undefined;\n    }\n    /* eslint-disable */\n\n\n    var amazonCognitoAdvancedSecurityDataConst = AmazonCognitoAdvancedSecurityData;\n    /* eslint-enable */\n\n    if (this.advancedSecurityDataCollectionFlag) {\n      var advancedSecurityData = amazonCognitoAdvancedSecurityDataConst.getData(username, this.userPoolId, this.clientId);\n\n      if (advancedSecurityData) {\n        var userContextData = {\n          EncodedData: advancedSecurityData\n        };\n        return userContextData;\n      }\n    }\n\n    return {};\n  };\n\n  return CognitoUserPool;\n}();\n\nexport default CognitoUserPool;","function _classCallCheck(instance, Constructor) {\n  if (!(instance instanceof Constructor)) {\n    throw new TypeError(\"Cannot call a class as a function\");\n  }\n}\n\nimport * as Cookies from 'js-cookie';\n/** @class */\n\nvar CookieStorage = function () {\n  /**\n   * Constructs a new CookieStorage object\n   * @param {object} data Creation options.\n   * @param {string} data.domain Cookies domain (mandatory).\n   * @param {string} data.path Cookies path (default: '/')\n   * @param {integer} data.expires Cookie expiration (in days, default: 365)\n   * @param {boolean} data.secure Cookie secure flag (default: true)\n   */\n  function CookieStorage(data) {\n    _classCallCheck(this, CookieStorage);\n\n    if (data.domain) {\n      this.domain = data.domain;\n    } else {\n      throw new Error('The domain of cookieStorage can not be undefined.');\n    }\n\n    if (data.path) {\n      this.path = data.path;\n    } else {\n      this.path = '/';\n    }\n\n    if (Object.prototype.hasOwnProperty.call(data, 'expires')) {\n      this.expires = data.expires;\n    } else {\n      this.expires = 365;\n    }\n\n    if (Object.prototype.hasOwnProperty.call(data, 'secure')) {\n      this.secure = data.secure;\n    } else {\n      this.secure = true;\n    }\n  }\n  /**\n   * This is used to set a specific item in storage\n   * @param {string} key - the key for the item\n   * @param {object} value - the value\n   * @returns {string} value that was set\n   */\n\n\n  CookieStorage.prototype.setItem = function setItem(key, value) {\n    Cookies.set(key, value, {\n      path: this.path,\n      expires: this.expires,\n      domain: this.domain,\n      secure: this.secure\n    });\n    return Cookies.get(key);\n  };\n  /**\n   * This is used to get a specific key from storage\n   * @param {string} key - the key for the item\n   * This is used to clear the storage\n   * @returns {string} the data item\n   */\n\n\n  CookieStorage.prototype.getItem = function getItem(key) {\n    return Cookies.get(key);\n  };\n  /**\n   * This is used to remove an item from storage\n   * @param {string} key - the key being set\n   * @returns {string} value - value that was deleted\n   */\n\n\n  CookieStorage.prototype.removeItem = function removeItem(key) {\n    return Cookies.remove(key, {\n      path: this.path,\n      domain: this.domain,\n      secure: this.secure\n    });\n  };\n  /**\n   * This is used to clear the storage\n   * @returns {string} nothing\n   */\n\n\n  CookieStorage.prototype.clear = function clear() {\n    var cookies = Cookies.get();\n    var index = void 0;\n\n    for (index = 0; index < cookies.length; ++index) {\n      Cookies.remove(cookies[index]);\n    }\n\n    return {};\n  };\n\n  return CookieStorage;\n}();\n\nexport default CookieStorage;","/*\n * Copyright 2019-2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n *     http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nvar __extends = this && this.__extends || function () {\n  var _extendStatics = function extendStatics(d, b) {\n    _extendStatics = Object.setPrototypeOf || {\n      __proto__: []\n    } instanceof Array && function (d, b) {\n      d.__proto__ = b;\n    } || function (d, b) {\n      for (var p in b) {\n        if (b.hasOwnProperty(p)) d[p] = b[p];\n      }\n    };\n\n    return _extendStatics(d, b);\n  };\n\n  return function (d, b) {\n    _extendStatics(d, b);\n\n    function __() {\n      this.constructor = d;\n    }\n\n    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n  };\n}();\n\nimport { ConsoleLogger as Logger } from '@aws-amplify/core';\nvar logger = new Logger('AuthError');\nvar DEFAULT_MSG = 'Authentication Error';\n\nvar AuthError =\n/** @class */\nfunction (_super) {\n  __extends(AuthError, _super);\n\n  function AuthError(type) {\n    var _this = this;\n\n    var _a = authErrorMessages[type],\n        message = _a.message,\n        log = _a.log;\n    _this = _super.call(this, message) || this; // Hack for making the custom error class work when transpiled to es5\n    // TODO: Delete the following 2 lines after we change the build target to >= es2015\n\n    _this.constructor = AuthError;\n    Object.setPrototypeOf(_this, AuthError.prototype);\n    _this.name = 'AuthError';\n    _this.log = log || message;\n    logger.error(_this.log);\n    return _this;\n  }\n\n  return AuthError;\n}(Error);\n\nexport { AuthError };\n\nvar NoUserPoolError =\n/** @class */\nfunction (_super) {\n  __extends(NoUserPoolError, _super);\n\n  function NoUserPoolError(type) {\n    var _this = _super.call(this, type) || this; // Hack for making the custom error class work when transpiled to es5\n    // TODO: Delete the following 2 lines after we change the build target to >= es2015\n\n\n    _this.constructor = NoUserPoolError;\n    Object.setPrototypeOf(_this, NoUserPoolError.prototype);\n    _this.name = 'NoUserPoolError';\n    return _this;\n  }\n\n  return NoUserPoolError;\n}(AuthError);\n\nexport { NoUserPoolError };\nexport var authErrorMessages = {\n  noConfig: {\n    message: DEFAULT_MSG,\n    log: \"\\n            Error: Amplify has not been configured correctly.\\n            This error is typically caused by one of the following scenarios:\\n\\n            1. Make sure you're passing the awsconfig object to Amplify.configure() in your app's entry point\\n                See https://aws-amplify.github.io/docs/js/authentication#configure-your-app for more information\\n            \\n            2. There might be multiple conflicting versions of aws-amplify or amplify packages in your node_modules.\\n                Try deleting your node_modules folder and reinstalling the dependencies with `yarn install`\\n        \"\n  },\n  missingAuthConfig: {\n    message: DEFAULT_MSG,\n    log: \"\\n            Error: Amplify has not been configured correctly. \\n            The configuration object is missing required auth properties. \\n            Did you run `amplify push` after adding auth via `amplify add auth`?\\n            See https://aws-amplify.github.io/docs/js/authentication#amplify-project-setup for more information\\n        \"\n  },\n  emptyUsername: {\n    message: 'Username cannot be empty'\n  },\n  // TODO: should include a list of valid sign-in types\n  invalidUsername: {\n    message: 'The username should either be a string or one of the sign in types'\n  },\n  emptyPassword: {\n    message: 'Password cannot be empty'\n  },\n  emptyCode: {\n    message: 'Confirmation code cannot be empty'\n  },\n  signUpError: {\n    message: 'Error creating account',\n    log: 'The first parameter should either be non-null string or object'\n  },\n  noMFA: {\n    message: 'No valid MFA method provided'\n  },\n  invalidMFA: {\n    message: 'Invalid MFA type'\n  },\n  emptyChallengeResponse: {\n    message: 'Challenge response cannot be empty'\n  },\n  noUserSession: {\n    message: 'Failed to get the session because the user is empty'\n  },\n  default: {\n    message: DEFAULT_MSG\n  }\n};","/*\n * Copyright 2017-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n *     http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nvar __awaiter = this && this.__awaiter || function (thisArg, _arguments, P, generator) {\n  function adopt(value) {\n    return value instanceof P ? value : new P(function (resolve) {\n      resolve(value);\n    });\n  }\n\n  return new (P || (P = Promise))(function (resolve, reject) {\n    function fulfilled(value) {\n      try {\n        step(generator.next(value));\n      } catch (e) {\n        reject(e);\n      }\n    }\n\n    function rejected(value) {\n      try {\n        step(generator[\"throw\"](value));\n      } catch (e) {\n        reject(e);\n      }\n    }\n\n    function step(result) {\n      result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected);\n    }\n\n    step((generator = generator.apply(thisArg, _arguments || [])).next());\n  });\n};\n\nvar __generator = this && this.__generator || function (thisArg, body) {\n  var _ = {\n    label: 0,\n    sent: function sent() {\n      if (t[0] & 1) throw t[1];\n      return t[1];\n    },\n    trys: [],\n    ops: []\n  },\n      f,\n      y,\n      t,\n      g;\n  return g = {\n    next: verb(0),\n    \"throw\": verb(1),\n    \"return\": verb(2)\n  }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function () {\n    return this;\n  }), g;\n\n  function verb(n) {\n    return function (v) {\n      return step([n, v]);\n    };\n  }\n\n  function step(op) {\n    if (f) throw new TypeError(\"Generator is already executing.\");\n\n    while (_) {\n      try {\n        if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\n        if (y = 0, t) op = [op[0] & 2, t.value];\n\n        switch (op[0]) {\n          case 0:\n          case 1:\n            t = op;\n            break;\n\n          case 4:\n            _.label++;\n            return {\n              value: op[1],\n              done: false\n            };\n\n          case 5:\n            _.label++;\n            y = op[1];\n            op = [0];\n            continue;\n\n          case 7:\n            op = _.ops.pop();\n\n            _.trys.pop();\n\n            continue;\n\n          default:\n            if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) {\n              _ = 0;\n              continue;\n            }\n\n            if (op[0] === 3 && (!t || op[1] > t[0] && op[1] < t[3])) {\n              _.label = op[1];\n              break;\n            }\n\n            if (op[0] === 6 && _.label < t[1]) {\n              _.label = t[1];\n              t = op;\n              break;\n            }\n\n            if (t && _.label < t[2]) {\n              _.label = t[2];\n\n              _.ops.push(op);\n\n              break;\n            }\n\n            if (t[2]) _.ops.pop();\n\n            _.trys.pop();\n\n            continue;\n        }\n\n        op = body.call(thisArg, _);\n      } catch (e) {\n        op = [6, e];\n        y = 0;\n      } finally {\n        f = t = 0;\n      }\n    }\n\n    if (op[0] & 5) throw op[1];\n    return {\n      value: op[0] ? op[1] : void 0,\n      done: true\n    };\n  }\n};\n\nimport { isUsernamePasswordOpts, isCognitoHostedOpts, isFederatedSignInOptions, isFederatedSignInOptionsCustom } from './types';\nimport { AWS, ConsoleLogger as Logger, Constants, Hub, JS, Parser, Credentials, StorageHelper } from '@aws-amplify/core';\nimport { CookieStorage, CognitoUserPool, AuthenticationDetails, CognitoUser, CognitoUserSession, CognitoUserAttribute, CognitoIdToken, CognitoRefreshToken, CognitoAccessToken } from 'amazon-cognito-identity-js';\nimport { parse } from 'url';\nimport OAuth from './OAuth/OAuth';\nimport { default as urlListener } from './urlListener';\nimport { AuthError, NoUserPoolError } from './Errors';\nimport { AuthErrorTypes } from './types/Auth';\nvar logger = new Logger('AuthClass');\nvar USER_ADMIN_SCOPE = 'aws.cognito.signin.user.admin';\nvar AMPLIFY_SYMBOL = typeof Symbol !== 'undefined' && typeof Symbol.for === 'function' ? Symbol.for('amplify_default') : '@@amplify_default';\n\nvar dispatchAuthEvent = function dispatchAuthEvent(event, data, message) {\n  Hub.dispatch('auth', {\n    event: event,\n    data: data,\n    message: message\n  }, 'Auth', AMPLIFY_SYMBOL);\n};\n\nexport var CognitoHostedUIIdentityProvider;\n\n(function (CognitoHostedUIIdentityProvider) {\n  CognitoHostedUIIdentityProvider[\"Cognito\"] = \"COGNITO\";\n  CognitoHostedUIIdentityProvider[\"Google\"] = \"Google\";\n  CognitoHostedUIIdentityProvider[\"Facebook\"] = \"Facebook\";\n  CognitoHostedUIIdentityProvider[\"Amazon\"] = \"LoginWithAmazon\";\n})(CognitoHostedUIIdentityProvider || (CognitoHostedUIIdentityProvider = {}));\n/**\n * Provide authentication steps\n */\n\n\nvar AuthClass =\n/** @class */\nfunction () {\n  /**\n   * Initialize Auth with AWS configurations\n   * @param {Object} config - Configuration of the Auth\n   */\n  function AuthClass(config) {\n    var _this = this;\n\n    this.userPool = null;\n    this.user = null;\n    this.configure(config);\n    this.currentUserCredentials = this.currentUserCredentials.bind(this);\n\n    if (AWS.config) {\n      AWS.config.update({\n        customUserAgent: Constants.userAgent\n      });\n    } else {\n      logger.warn('No AWS.config');\n    }\n\n    Hub.listen('auth', function (_a) {\n      var payload = _a.payload;\n      var event = payload.event;\n\n      switch (event) {\n        case 'signIn':\n          _this._storage.setItem('amplify-signin-with-hostedUI', 'false');\n\n          break;\n\n        case 'signOut':\n          _this._storage.removeItem('amplify-signin-with-hostedUI');\n\n          break;\n\n        case 'cognitoHostedUI':\n          _this._storage.setItem('amplify-signin-with-hostedUI', 'true');\n\n          break;\n      }\n    });\n  }\n\n  AuthClass.prototype.getModuleName = function () {\n    return 'Auth';\n  };\n\n  AuthClass.prototype.configure = function (config) {\n    var _this = this;\n\n    if (!config) return this._config || {};\n    logger.debug('configure Auth');\n    var conf = Object.assign({}, this._config, Parser.parseMobilehubConfig(config).Auth, config);\n    this._config = conf;\n    var _a = this._config,\n        userPoolId = _a.userPoolId,\n        userPoolWebClientId = _a.userPoolWebClientId,\n        cookieStorage = _a.cookieStorage,\n        oauth = _a.oauth,\n        region = _a.region,\n        identityPoolId = _a.identityPoolId,\n        mandatorySignIn = _a.mandatorySignIn,\n        refreshHandlers = _a.refreshHandlers,\n        identityPoolRegion = _a.identityPoolRegion,\n        clientMetadata = _a.clientMetadata;\n\n    if (!this._config.storage) {\n      // backward compatbility\n      if (cookieStorage) this._storage = new CookieStorage(cookieStorage);else {\n        this._storage = new StorageHelper().getStorage();\n      }\n    } else {\n      if (!this._isValidAuthStorage(this._config.storage)) {\n        logger.error('The storage in the Auth config is not valid!');\n        throw new Error('Empty storage object');\n      }\n\n      this._storage = this._config.storage;\n    }\n\n    this._storageSync = Promise.resolve();\n\n    if (typeof this._storage['sync'] === 'function') {\n      this._storageSync = this._storage['sync']();\n    }\n\n    if (userPoolId) {\n      var userPoolData = {\n        UserPoolId: userPoolId,\n        ClientId: userPoolWebClientId\n      };\n      userPoolData.Storage = this._storage;\n      this.userPool = new CognitoUserPool(userPoolData);\n    }\n\n    Credentials.configure({\n      mandatorySignIn: mandatorySignIn,\n      region: identityPoolRegion || region,\n      userPoolId: userPoolId,\n      identityPoolId: identityPoolId,\n      refreshHandlers: refreshHandlers,\n      storage: this._storage\n    }); // initiailize cognitoauth client if hosted ui options provided\n    // to keep backward compatibility:\n\n    var cognitoHostedUIConfig = oauth ? isCognitoHostedOpts(this._config.oauth) ? oauth : oauth.awsCognito : undefined;\n\n    if (cognitoHostedUIConfig) {\n      var cognitoAuthParams = Object.assign({\n        cognitoClientId: userPoolWebClientId,\n        UserPoolId: userPoolId,\n        domain: cognitoHostedUIConfig['domain'],\n        scopes: cognitoHostedUIConfig['scope'],\n        redirectSignIn: cognitoHostedUIConfig['redirectSignIn'],\n        redirectSignOut: cognitoHostedUIConfig['redirectSignOut'],\n        responseType: cognitoHostedUIConfig['responseType'],\n        Storage: this._storage,\n        urlOpener: cognitoHostedUIConfig['urlOpener'],\n        clientMetadata: clientMetadata\n      }, cognitoHostedUIConfig['options']);\n      this._oAuthHandler = new OAuth({\n        scopes: cognitoAuthParams.scopes,\n        config: cognitoAuthParams,\n        cognitoClientId: cognitoAuthParams.cognitoClientId\n      }); // **NOTE** - Remove this in a future major release as it is a breaking change\n\n      urlListener(function (_a) {\n        var url = _a.url;\n\n        _this._handleAuthResponse(url);\n      });\n    }\n\n    dispatchAuthEvent('configured', null, \"The Auth category has been configured successfully\");\n    return this._config;\n  };\n  /**\n   * Sign up with username, password and other attrbutes like phone, email\n   * @param {String | object} params - The user attirbutes used for signin\n   * @param {String[]} restOfAttrs - for the backward compatability\n   * @return - A promise resolves callback data if success\n   */\n\n\n  AuthClass.prototype.signUp = function (params) {\n    var _this = this;\n\n    var restOfAttrs = [];\n\n    for (var _i = 1; _i < arguments.length; _i++) {\n      restOfAttrs[_i - 1] = arguments[_i];\n    }\n\n    if (!this.userPool) {\n      return this.rejectNoUserPool();\n    }\n\n    var username = null;\n    var password = null;\n    var attributes = [];\n    var validationData = null;\n    var clientMetadata;\n\n    if (params && typeof params === 'string') {\n      username = params;\n      password = restOfAttrs ? restOfAttrs[0] : null;\n      var email = restOfAttrs ? restOfAttrs[1] : null;\n      var phone_number = restOfAttrs ? restOfAttrs[2] : null;\n      if (email) attributes.push({\n        Name: 'email',\n        Value: email\n      });\n      if (phone_number) attributes.push({\n        Name: 'phone_number',\n        Value: phone_number\n      });\n    } else if (params && typeof params === 'object') {\n      username = params['username'];\n      password = params['password'];\n\n      if (params && params.clientMetadata) {\n        clientMetadata = params.clientMetadata;\n      } else if (this._config.clientMetadata) {\n        clientMetadata = this._config.clientMetadata;\n      }\n\n      var attrs_1 = params['attributes'];\n\n      if (attrs_1) {\n        Object.keys(attrs_1).map(function (key) {\n          var ele = {\n            Name: key,\n            Value: attrs_1[key]\n          };\n          attributes.push(ele);\n        });\n      }\n\n      validationData = params['validationData'] || null;\n    } else {\n      return this.rejectAuthError(AuthErrorTypes.SignUpError);\n    }\n\n    if (!username) {\n      return this.rejectAuthError(AuthErrorTypes.EmptyUsername);\n    }\n\n    if (!password) {\n      return this.rejectAuthError(AuthErrorTypes.EmptyPassword);\n    }\n\n    logger.debug('signUp attrs:', attributes);\n    logger.debug('signUp validation data:', validationData);\n    return new Promise(function (resolve, reject) {\n      _this.userPool.signUp(username, password, attributes, validationData, function (err, data) {\n        if (err) {\n          dispatchAuthEvent('signUp_failure', err, username + \" failed to signup\");\n          reject(err);\n        } else {\n          dispatchAuthEvent('signUp', data, username + \" has signed up successfully\");\n          resolve(data);\n        }\n      }, clientMetadata);\n    });\n  };\n  /**\n   * Send the verfication code to confirm sign up\n   * @param {String} username - The username to be confirmed\n   * @param {String} code - The verification code\n   * @param {ConfirmSignUpOptions} options - other options for confirm signup\n   * @return - A promise resolves callback data if success\n   */\n\n\n  AuthClass.prototype.confirmSignUp = function (username, code, options) {\n    if (!this.userPool) {\n      return this.rejectNoUserPool();\n    }\n\n    if (!username) {\n      return this.rejectAuthError(AuthErrorTypes.EmptyUsername);\n    }\n\n    if (!code) {\n      return this.rejectAuthError(AuthErrorTypes.EmptyCode);\n    }\n\n    var user = this.createCognitoUser(username);\n    var forceAliasCreation = options && typeof options.forceAliasCreation === 'boolean' ? options.forceAliasCreation : true;\n    var clientMetadata;\n\n    if (options && options.clientMetadata) {\n      clientMetadata = options.clientMetadata;\n    } else if (this._config.clientMetadata) {\n      clientMetadata = this._config.clientMetadata;\n    }\n\n    return new Promise(function (resolve, reject) {\n      user.confirmRegistration(code, forceAliasCreation, function (err, data) {\n        if (err) {\n          reject(err);\n        } else {\n          resolve(data);\n        }\n      }, clientMetadata);\n    });\n  };\n  /**\n   * Resend the verification code\n   * @param {String} username - The username to be confirmed\n   * @param {ClientMetadata} clientMetadata - Metadata to be passed to Cognito Lambda triggers\n   * @return - A promise resolves data if success\n   */\n\n\n  AuthClass.prototype.resendSignUp = function (username, clientMetadata) {\n    if (clientMetadata === void 0) {\n      clientMetadata = this._config.clientMetadata;\n    }\n\n    if (!this.userPool) {\n      return this.rejectNoUserPool();\n    }\n\n    if (!username) {\n      return this.rejectAuthError(AuthErrorTypes.EmptyUsername);\n    }\n\n    var user = this.createCognitoUser(username);\n    return new Promise(function (resolve, reject) {\n      user.resendConfirmationCode(function (err, data) {\n        if (err) {\n          reject(err);\n        } else {\n          resolve(data);\n        }\n      }, clientMetadata);\n    });\n  };\n  /**\n   * Sign in\n   * @param {String | SignInOpts} usernameOrSignInOpts - The username to be signed in or the sign in options\n   * @param {String} password - The password of the username\n   * @return - A promise resolves the CognitoUser\n   */\n\n\n  AuthClass.prototype.signIn = function (usernameOrSignInOpts, pw, clientMetadata) {\n    if (clientMetadata === void 0) {\n      clientMetadata = this._config.clientMetadata;\n    }\n\n    if (!this.userPool) {\n      return this.rejectNoUserPool();\n    }\n\n    var username = null;\n    var password = null;\n    var validationData = {}; // for backward compatibility\n\n    if (typeof usernameOrSignInOpts === 'string') {\n      username = usernameOrSignInOpts;\n      password = pw;\n    } else if (isUsernamePasswordOpts(usernameOrSignInOpts)) {\n      if (typeof pw !== 'undefined') {\n        logger.warn('The password should be defined under the first parameter object!');\n      }\n\n      username = usernameOrSignInOpts.username;\n      password = usernameOrSignInOpts.password;\n      validationData = usernameOrSignInOpts.validationData;\n    } else {\n      return this.rejectAuthError(AuthErrorTypes.InvalidUsername);\n    }\n\n    if (!username) {\n      return this.rejectAuthError(AuthErrorTypes.EmptyUsername);\n    }\n\n    var authDetails = new AuthenticationDetails({\n      Username: username,\n      Password: password,\n      ValidationData: validationData,\n      ClientMetadata: clientMetadata\n    });\n\n    if (password) {\n      return this.signInWithPassword(authDetails);\n    } else {\n      return this.signInWithoutPassword(authDetails);\n    }\n  };\n  /**\n   * Return an object with the authentication callbacks\n   * @param {CognitoUser} user - the cognito user object\n   * @param {} resolve - function called when resolving the current step\n   * @param {} reject - function called when rejecting the current step\n   * @return - an object with the callback methods for user authentication\n   */\n\n\n  AuthClass.prototype.authCallbacks = function (user, resolve, reject) {\n    var _this = this;\n\n    var that = this;\n    return {\n      onSuccess: function onSuccess(session) {\n        return __awaiter(_this, void 0, void 0, function () {\n          var cred, e_1, currentUser, e_2;\n          return __generator(this, function (_a) {\n            switch (_a.label) {\n              case 0:\n                logger.debug(session);\n                delete user['challengeName'];\n                delete user['challengeParam'];\n                _a.label = 1;\n\n              case 1:\n                _a.trys.push([1, 4, 5, 9]);\n\n                return [4\n                /*yield*/\n                , Credentials.clear()];\n\n              case 2:\n                _a.sent();\n\n                return [4\n                /*yield*/\n                , Credentials.set(session, 'session')];\n\n              case 3:\n                cred = _a.sent();\n                logger.debug('succeed to get cognito credentials', cred);\n                return [3\n                /*break*/\n                , 9];\n\n              case 4:\n                e_1 = _a.sent();\n                logger.debug('cannot get cognito credentials', e_1);\n                return [3\n                /*break*/\n                , 9];\n\n              case 5:\n                _a.trys.push([5, 7,, 8]);\n\n                return [4\n                /*yield*/\n                , this.currentUserPoolUser()];\n\n              case 6:\n                currentUser = _a.sent();\n                that.user = currentUser;\n                dispatchAuthEvent('signIn', currentUser, \"A user \" + user.getUsername() + \" has been signed in\");\n                resolve(currentUser);\n                return [3\n                /*break*/\n                , 8];\n\n              case 7:\n                e_2 = _a.sent();\n                logger.error('Failed to get the signed in user', e_2);\n                reject(e_2);\n                return [3\n                /*break*/\n                , 8];\n\n              case 8:\n                return [7\n                /*endfinally*/\n                ];\n\n              case 9:\n                return [2\n                /*return*/\n                ];\n            }\n          });\n        });\n      },\n      onFailure: function onFailure(err) {\n        logger.debug('signIn failure', err);\n        dispatchAuthEvent('signIn_failure', err, user.getUsername() + \" failed to signin\");\n        reject(err);\n      },\n      customChallenge: function customChallenge(challengeParam) {\n        logger.debug('signIn custom challenge answer required');\n        user['challengeName'] = 'CUSTOM_CHALLENGE';\n        user['challengeParam'] = challengeParam;\n        resolve(user);\n      },\n      mfaRequired: function mfaRequired(challengeName, challengeParam) {\n        logger.debug('signIn MFA required');\n        user['challengeName'] = challengeName;\n        user['challengeParam'] = challengeParam;\n        resolve(user);\n      },\n      mfaSetup: function mfaSetup(challengeName, challengeParam) {\n        logger.debug('signIn mfa setup', challengeName);\n        user['challengeName'] = challengeName;\n        user['challengeParam'] = challengeParam;\n        resolve(user);\n      },\n      newPasswordRequired: function newPasswordRequired(userAttributes, requiredAttributes) {\n        logger.debug('signIn new password');\n        user['challengeName'] = 'NEW_PASSWORD_REQUIRED';\n        user['challengeParam'] = {\n          userAttributes: userAttributes,\n          requiredAttributes: requiredAttributes\n        };\n        resolve(user);\n      },\n      totpRequired: function totpRequired(challengeName, challengeParam) {\n        logger.debug('signIn totpRequired');\n        user['challengeName'] = challengeName;\n        user['challengeParam'] = challengeParam;\n        resolve(user);\n      },\n      selectMFAType: function selectMFAType(challengeName, challengeParam) {\n        logger.debug('signIn selectMFAType', challengeName);\n        user['challengeName'] = challengeName;\n        user['challengeParam'] = challengeParam;\n        resolve(user);\n      }\n    };\n  };\n  /**\n   * Sign in with a password\n   * @private\n   * @param {AuthenticationDetails} authDetails - the user sign in data\n   * @return - A promise resolves the CognitoUser object if success or mfa required\n   */\n\n\n  AuthClass.prototype.signInWithPassword = function (authDetails) {\n    var _this = this;\n\n    var user = this.createCognitoUser(authDetails.getUsername());\n    return new Promise(function (resolve, reject) {\n      user.authenticateUser(authDetails, _this.authCallbacks(user, resolve, reject));\n    });\n  };\n  /**\n   * Sign in without a password\n   * @private\n   * @param {AuthenticationDetails} authDetails - the user sign in data\n   * @return - A promise resolves the CognitoUser object if success or mfa required\n   */\n\n\n  AuthClass.prototype.signInWithoutPassword = function (authDetails) {\n    var _this = this;\n\n    var user = this.createCognitoUser(authDetails.getUsername());\n    user.setAuthenticationFlowType('CUSTOM_AUTH');\n    return new Promise(function (resolve, reject) {\n      user.initiateAuth(authDetails, _this.authCallbacks(user, resolve, reject));\n    });\n  };\n  /**\n   * get user current preferred mfa option\n   * this method doesn't work with totp, we need to deprecate it.\n   * @deprecated\n   * @param {CognitoUser} user - the current user\n   * @return - A promise resolves the current preferred mfa option if success\n   */\n\n\n  AuthClass.prototype.getMFAOptions = function (user) {\n    return new Promise(function (res, rej) {\n      user.getMFAOptions(function (err, mfaOptions) {\n        if (err) {\n          logger.debug('get MFA Options failed', err);\n          rej(err);\n          return;\n        }\n\n        logger.debug('get MFA options success', mfaOptions);\n        res(mfaOptions);\n        return;\n      });\n    });\n  };\n  /**\n   * get preferred mfa method\n   * @param {CognitoUser} user - the current cognito user\n   * @param {GetPreferredMFAOpts} params - options for getting the current user preferred MFA\n   */\n\n\n  AuthClass.prototype.getPreferredMFA = function (user, params) {\n    var that = this;\n    return new Promise(function (res, rej) {\n      var bypassCache = params ? params.bypassCache : false;\n      user.getUserData(function (err, data) {\n        if (err) {\n          logger.debug('getting preferred mfa failed', err);\n          rej(err);\n          return;\n        }\n\n        var mfaType = that._getMfaTypeFromUserData(data);\n\n        if (!mfaType) {\n          rej('invalid MFA Type');\n          return;\n        } else {\n          res(mfaType);\n          return;\n        }\n      }, {\n        bypassCache: bypassCache\n      });\n    });\n  };\n\n  AuthClass.prototype._getMfaTypeFromUserData = function (data) {\n    var ret = null;\n    var preferredMFA = data.PreferredMfaSetting; // if the user has used Auth.setPreferredMFA() to setup the mfa type\n    // then the \"PreferredMfaSetting\" would exist in the response\n\n    if (preferredMFA) {\n      ret = preferredMFA;\n    } else {\n      // if mfaList exists but empty, then its noMFA\n      var mfaList = data.UserMFASettingList;\n\n      if (!mfaList) {\n        // if SMS was enabled by using Auth.enableSMS(),\n        // the response would contain MFAOptions\n        // as for now Cognito only supports for SMS, so we will say it is 'SMS_MFA'\n        // if it does not exist, then it should be NOMFA\n        var MFAOptions = data.MFAOptions;\n\n        if (MFAOptions) {\n          ret = 'SMS_MFA';\n        } else {\n          ret = 'NOMFA';\n        }\n      } else if (mfaList.length === 0) {\n        ret = 'NOMFA';\n      } else {\n        logger.debug('invalid case for getPreferredMFA', data);\n      }\n    }\n\n    return ret;\n  };\n\n  AuthClass.prototype._getUserData = function (user, params) {\n    return new Promise(function (res, rej) {\n      user.getUserData(function (err, data) {\n        if (err) {\n          logger.debug('getting user data failed', err);\n          rej(err);\n          return;\n        } else {\n          res(data);\n          return;\n        }\n      }, params);\n    });\n  };\n  /**\n   * set preferred MFA method\n   * @param {CognitoUser} user - the current Cognito user\n   * @param {string} mfaMethod - preferred mfa method\n   * @return - A promise resolve if success\n   */\n\n\n  AuthClass.prototype.setPreferredMFA = function (user, mfaMethod) {\n    return __awaiter(this, void 0, void 0, function () {\n      var userData, smsMfaSettings, totpMfaSettings, _a, mfaList, currentMFAType, that;\n\n      return __generator(this, function (_b) {\n        switch (_b.label) {\n          case 0:\n            return [4\n            /*yield*/\n            , this._getUserData(user, {\n              bypassCache: true\n            })];\n\n          case 1:\n            userData = _b.sent();\n            smsMfaSettings = null;\n            totpMfaSettings = null;\n            _a = mfaMethod;\n\n            switch (_a) {\n              case 'TOTP' || 'SOFTWARE_TOKEN_MFA':\n                return [3\n                /*break*/\n                , 2];\n\n              case 'SMS' || 'SMS_MFA':\n                return [3\n                /*break*/\n                , 3];\n\n              case 'NOMFA':\n                return [3\n                /*break*/\n                , 4];\n            }\n\n            return [3\n            /*break*/\n            , 6];\n\n          case 2:\n            totpMfaSettings = {\n              PreferredMfa: true,\n              Enabled: true\n            };\n            return [3\n            /*break*/\n            , 7];\n\n          case 3:\n            smsMfaSettings = {\n              PreferredMfa: true,\n              Enabled: true\n            };\n            return [3\n            /*break*/\n            , 7];\n\n          case 4:\n            mfaList = userData['UserMFASettingList'];\n            return [4\n            /*yield*/\n            , this._getMfaTypeFromUserData(userData)];\n\n          case 5:\n            currentMFAType = _b.sent();\n\n            if (currentMFAType === 'NOMFA') {\n              return [2\n              /*return*/\n              , Promise.resolve('No change for mfa type')];\n            } else if (currentMFAType === 'SMS_MFA') {\n              smsMfaSettings = {\n                PreferredMfa: false,\n                Enabled: false\n              };\n            } else if (currentMFAType === 'SOFTWARE_TOKEN_MFA') {\n              totpMfaSettings = {\n                PreferredMfa: false,\n                Enabled: false\n              };\n            } else {\n              return [2\n              /*return*/\n              , this.rejectAuthError(AuthErrorTypes.InvalidMFA)];\n            } // if there is a UserMFASettingList in the response\n            // we need to disable every mfa type in that list\n\n\n            if (mfaList && mfaList.length !== 0) {\n              // to disable SMS or TOTP if exists in that list\n              mfaList.forEach(function (mfaType) {\n                if (mfaType === 'SMS_MFA') {\n                  smsMfaSettings = {\n                    PreferredMfa: false,\n                    Enabled: false\n                  };\n                } else if (mfaType === 'SOFTWARE_TOKEN_MFA') {\n                  totpMfaSettings = {\n                    PreferredMfa: false,\n                    Enabled: false\n                  };\n                }\n              });\n            }\n\n            return [3\n            /*break*/\n            , 7];\n\n          case 6:\n            logger.debug('no validmfa method provided');\n            return [2\n            /*return*/\n            , this.rejectAuthError(AuthErrorTypes.NoMFA)];\n\n          case 7:\n            that = this;\n            return [2\n            /*return*/\n            , new Promise(function (res, rej) {\n              user.setUserMfaPreference(smsMfaSettings, totpMfaSettings, function (err, result) {\n                if (err) {\n                  logger.debug('Set user mfa preference error', err);\n                  return rej(err);\n                }\n\n                logger.debug('Set user mfa success', result);\n                logger.debug('Caching the latest user data into local'); // cache the latest result into user data\n\n                user.getUserData(function (err, data) {\n                  if (err) {\n                    logger.debug('getting user data failed', err);\n                    return rej(err);\n                  } else {\n                    return res(result);\n                  }\n                }, {\n                  bypassCache: true\n                });\n              });\n            })];\n        }\n      });\n    });\n  };\n  /**\n   * diable SMS\n   * @deprecated\n   * @param {CognitoUser} user - the current user\n   * @return - A promise resolves is success\n   */\n\n\n  AuthClass.prototype.disableSMS = function (user) {\n    return new Promise(function (res, rej) {\n      user.disableMFA(function (err, data) {\n        if (err) {\n          logger.debug('disable mfa failed', err);\n          rej(err);\n          return;\n        }\n\n        logger.debug('disable mfa succeed', data);\n        res(data);\n        return;\n      });\n    });\n  };\n  /**\n   * enable SMS\n   * @deprecated\n   * @param {CognitoUser} user - the current user\n   * @return - A promise resolves is success\n   */\n\n\n  AuthClass.prototype.enableSMS = function (user) {\n    return new Promise(function (res, rej) {\n      user.enableMFA(function (err, data) {\n        if (err) {\n          logger.debug('enable mfa failed', err);\n          rej(err);\n          return;\n        }\n\n        logger.debug('enable mfa succeed', data);\n        res(data);\n        return;\n      });\n    });\n  };\n  /**\n   * Setup TOTP\n   * @param {CognitoUser} user - the current user\n   * @return - A promise resolves with the secret code if success\n   */\n\n\n  AuthClass.prototype.setupTOTP = function (user) {\n    return new Promise(function (res, rej) {\n      user.associateSoftwareToken({\n        onFailure: function onFailure(err) {\n          logger.debug('associateSoftwareToken failed', err);\n          rej(err);\n          return;\n        },\n        associateSecretCode: function associateSecretCode(secretCode) {\n          logger.debug('associateSoftwareToken sucess', secretCode);\n          res(secretCode);\n          return;\n        }\n      });\n    });\n  };\n  /**\n   * verify TOTP setup\n   * @param {CognitoUser} user - the current user\n   * @param {string} challengeAnswer - challenge answer\n   * @return - A promise resolves is success\n   */\n\n\n  AuthClass.prototype.verifyTotpToken = function (user, challengeAnswer) {\n    logger.debug('verfication totp token', user, challengeAnswer);\n    return new Promise(function (res, rej) {\n      user.verifySoftwareToken(challengeAnswer, 'My TOTP device', {\n        onFailure: function onFailure(err) {\n          logger.debug('verifyTotpToken failed', err);\n          rej(err);\n          return;\n        },\n        onSuccess: function onSuccess(data) {\n          logger.debug('verifyTotpToken success', data);\n          res(data);\n          return;\n        }\n      });\n    });\n  };\n  /**\n   * Send MFA code to confirm sign in\n   * @param {Object} user - The CognitoUser object\n   * @param {String} code - The confirmation code\n   */\n\n\n  AuthClass.prototype.confirmSignIn = function (user, code, mfaType, clientMetadata) {\n    var _this = this;\n\n    if (clientMetadata === void 0) {\n      clientMetadata = this._config.clientMetadata;\n    }\n\n    if (!code) {\n      return this.rejectAuthError(AuthErrorTypes.EmptyCode);\n    }\n\n    var that = this;\n    return new Promise(function (resolve, reject) {\n      user.sendMFACode(code, {\n        onSuccess: function onSuccess(session) {\n          return __awaiter(_this, void 0, void 0, function () {\n            var cred, e_3;\n            return __generator(this, function (_a) {\n              switch (_a.label) {\n                case 0:\n                  logger.debug(session);\n                  _a.label = 1;\n\n                case 1:\n                  _a.trys.push([1, 4, 5, 6]);\n\n                  return [4\n                  /*yield*/\n                  , Credentials.clear()];\n\n                case 2:\n                  _a.sent();\n\n                  return [4\n                  /*yield*/\n                  , Credentials.set(session, 'session')];\n\n                case 3:\n                  cred = _a.sent();\n                  logger.debug('succeed to get cognito credentials', cred);\n                  return [3\n                  /*break*/\n                  , 6];\n\n                case 4:\n                  e_3 = _a.sent();\n                  logger.debug('cannot get cognito credentials', e_3);\n                  return [3\n                  /*break*/\n                  , 6];\n\n                case 5:\n                  that.user = user;\n                  dispatchAuthEvent('signIn', user, user + \" has signed in\");\n                  resolve(user);\n                  return [7\n                  /*endfinally*/\n                  ];\n\n                case 6:\n                  return [2\n                  /*return*/\n                  ];\n              }\n            });\n          });\n        },\n        onFailure: function onFailure(err) {\n          logger.debug('confirm signIn failure', err);\n          reject(err);\n        }\n      }, mfaType, clientMetadata);\n    });\n  };\n\n  AuthClass.prototype.completeNewPassword = function (user, password, requiredAttributes, clientMetadata) {\n    var _this = this;\n\n    if (clientMetadata === void 0) {\n      clientMetadata = this._config.clientMetadata;\n    }\n\n    if (!password) {\n      return this.rejectAuthError(AuthErrorTypes.EmptyPassword);\n    }\n\n    var that = this;\n    return new Promise(function (resolve, reject) {\n      user.completeNewPasswordChallenge(password, requiredAttributes, {\n        onSuccess: function onSuccess(session) {\n          return __awaiter(_this, void 0, void 0, function () {\n            var cred, e_4;\n            return __generator(this, function (_a) {\n              switch (_a.label) {\n                case 0:\n                  logger.debug(session);\n                  _a.label = 1;\n\n                case 1:\n                  _a.trys.push([1, 4, 5, 6]);\n\n                  return [4\n                  /*yield*/\n                  , Credentials.clear()];\n\n                case 2:\n                  _a.sent();\n\n                  return [4\n                  /*yield*/\n                  , Credentials.set(session, 'session')];\n\n                case 3:\n                  cred = _a.sent();\n                  logger.debug('succeed to get cognito credentials', cred);\n                  return [3\n                  /*break*/\n                  , 6];\n\n                case 4:\n                  e_4 = _a.sent();\n                  logger.debug('cannot get cognito credentials', e_4);\n                  return [3\n                  /*break*/\n                  , 6];\n\n                case 5:\n                  that.user = user;\n                  dispatchAuthEvent('signIn', user, user + \" has signed in\");\n                  resolve(user);\n                  return [7\n                  /*endfinally*/\n                  ];\n\n                case 6:\n                  return [2\n                  /*return*/\n                  ];\n              }\n            });\n          });\n        },\n        onFailure: function onFailure(err) {\n          logger.debug('completeNewPassword failure', err);\n          dispatchAuthEvent('completeNewPassword_failure', err, _this.user + \" failed to complete the new password flow\");\n          reject(err);\n        },\n        mfaRequired: function mfaRequired(challengeName, challengeParam) {\n          logger.debug('signIn MFA required');\n          user['challengeName'] = challengeName;\n          user['challengeParam'] = challengeParam;\n          resolve(user);\n        },\n        mfaSetup: function mfaSetup(challengeName, challengeParam) {\n          logger.debug('signIn mfa setup', challengeName);\n          user['challengeName'] = challengeName;\n          user['challengeParam'] = challengeParam;\n          resolve(user);\n        }\n      }, clientMetadata);\n    });\n  };\n  /**\n   * Send the answer to a custom challenge\n   * @param {CognitoUser} user - The CognitoUser object\n   * @param {String} challengeResponses - The confirmation code\n   */\n\n\n  AuthClass.prototype.sendCustomChallengeAnswer = function (user, challengeResponses, clientMetadata) {\n    var _this = this;\n\n    if (clientMetadata === void 0) {\n      clientMetadata = this._config.clientMetadata;\n    }\n\n    if (!this.userPool) {\n      return this.rejectNoUserPool();\n    }\n\n    if (!challengeResponses) {\n      return this.rejectAuthError(AuthErrorTypes.EmptyChallengeResponse);\n    }\n\n    var that = this;\n    return new Promise(function (resolve, reject) {\n      user.sendCustomChallengeAnswer(challengeResponses, _this.authCallbacks(user, resolve, reject), clientMetadata);\n    });\n  };\n  /**\n   * Update an authenticated users' attributes\n   * @param {CognitoUser} - The currently logged in user object\n   * @return {Promise}\n   **/\n\n\n  AuthClass.prototype.updateUserAttributes = function (user, attributes, clientMetadata) {\n    if (clientMetadata === void 0) {\n      clientMetadata = this._config.clientMetadata;\n    }\n\n    var attributeList = [];\n    var that = this;\n    return new Promise(function (resolve, reject) {\n      that.userSession(user).then(function (session) {\n        for (var key in attributes) {\n          if (key !== 'sub' && key.indexOf('_verified') < 0) {\n            var attr = {\n              Name: key,\n              Value: attributes[key]\n            };\n            attributeList.push(attr);\n          }\n        }\n\n        user.updateAttributes(attributeList, function (err, result) {\n          if (err) {\n            return reject(err);\n          } else {\n            return resolve(result);\n          }\n        }, clientMetadata);\n      });\n    });\n  };\n  /**\n   * Return user attributes\n   * @param {Object} user - The CognitoUser object\n   * @return - A promise resolves to user attributes if success\n   */\n\n\n  AuthClass.prototype.userAttributes = function (user) {\n    var _this = this;\n\n    return new Promise(function (resolve, reject) {\n      _this.userSession(user).then(function (session) {\n        user.getUserAttributes(function (err, attributes) {\n          if (err) {\n            reject(err);\n          } else {\n            resolve(attributes);\n          }\n        });\n      });\n    });\n  };\n\n  AuthClass.prototype.verifiedContact = function (user) {\n    var that = this;\n    return this.userAttributes(user).then(function (attributes) {\n      var attrs = that.attributesToObject(attributes);\n      var unverified = {};\n      var verified = {};\n\n      if (attrs['email']) {\n        if (attrs['email_verified']) {\n          verified['email'] = attrs['email'];\n        } else {\n          unverified['email'] = attrs['email'];\n        }\n      }\n\n      if (attrs['phone_number']) {\n        if (attrs['phone_number_verified']) {\n          verified['phone_number'] = attrs['phone_number'];\n        } else {\n          unverified['phone_number'] = attrs['phone_number'];\n        }\n      }\n\n      return {\n        verified: verified,\n        unverified: unverified\n      };\n    });\n  };\n  /**\n   * Get current authenticated user\n   * @return - A promise resolves to current authenticated CognitoUser if success\n   */\n\n\n  AuthClass.prototype.currentUserPoolUser = function (params) {\n    var _this = this;\n\n    if (!this.userPool) {\n      return this.rejectNoUserPool();\n    }\n\n    var that = this;\n    return new Promise(function (res, rej) {\n      _this._storageSync.then(function () {\n        var user = that.userPool.getCurrentUser();\n\n        if (!user) {\n          logger.debug('Failed to get user from user pool');\n          rej('No current user');\n          return;\n        } // refresh the session if the session expired.\n\n\n        user.getSession(function (err, session) {\n          if (err) {\n            logger.debug('Failed to get the user session', err);\n            rej(err);\n            return;\n          } // get user data from Cognito\n\n\n          var bypassCache = params ? params.bypassCache : false; // validate the token's scope fisrt before calling this function\n\n          var _a = session.getAccessToken().decodePayload().scope,\n              scope = _a === void 0 ? '' : _a;\n\n          if (scope.split(' ').includes(USER_ADMIN_SCOPE)) {\n            user.getUserData(function (err, data) {\n              if (err) {\n                logger.debug('getting user data failed', err); // Make sure the user is still valid\n\n                if (err.message === 'User is disabled' || err.message === 'User does not exist.') {\n                  rej(err);\n                } else {\n                  // the error may also be thrown when lack of permissions to get user info etc\n                  // in that case we just bypass the error\n                  res(user);\n                }\n\n                return;\n              }\n\n              var preferredMFA = data.PreferredMfaSetting || 'NOMFA';\n              var attributeList = [];\n\n              for (var i = 0; i < data.UserAttributes.length; i++) {\n                var attribute = {\n                  Name: data.UserAttributes[i].Name,\n                  Value: data.UserAttributes[i].Value\n                };\n                var userAttribute = new CognitoUserAttribute(attribute);\n                attributeList.push(userAttribute);\n              }\n\n              var attributes = that.attributesToObject(attributeList);\n              Object.assign(user, {\n                attributes: attributes,\n                preferredMFA: preferredMFA\n              });\n              return res(user);\n            }, {\n              bypassCache: bypassCache\n            });\n          } else {\n            logger.debug(\"Unable to get the user data because the \" + USER_ADMIN_SCOPE + \" \" + \"is not in the scopes of the access token\");\n            return res(user);\n          }\n        });\n      }).catch(function (e) {\n        logger.debug('Failed to sync cache info into memory', e);\n        return rej(e);\n      });\n    });\n  };\n  /**\n   * Get current authenticated user\n   * @param {CurrentUserOpts} - options for getting the current user\n   * @return - A promise resolves to current authenticated CognitoUser if success\n   */\n\n\n  AuthClass.prototype.currentAuthenticatedUser = function (params) {\n    return __awaiter(this, void 0, void 0, function () {\n      var federatedUser, e_5, user, e_6;\n      return __generator(this, function (_a) {\n        switch (_a.label) {\n          case 0:\n            logger.debug('getting current authenticated user');\n            federatedUser = null;\n            _a.label = 1;\n\n          case 1:\n            _a.trys.push([1, 3,, 4]);\n\n            return [4\n            /*yield*/\n            , this._storageSync];\n\n          case 2:\n            _a.sent();\n\n            return [3\n            /*break*/\n            , 4];\n\n          case 3:\n            e_5 = _a.sent();\n            logger.debug('Failed to sync cache info into memory', e_5);\n            throw e_5;\n\n          case 4:\n            try {\n              federatedUser = JSON.parse(this._storage.getItem('aws-amplify-federatedInfo')).user;\n            } catch (e) {\n              logger.debug('cannot load federated user from auth storage');\n            }\n\n            if (!federatedUser) return [3\n            /*break*/\n            , 5];\n            this.user = federatedUser;\n            logger.debug('get current authenticated federated user', this.user);\n            return [2\n            /*return*/\n            , this.user];\n\n          case 5:\n            logger.debug('get current authenticated userpool user');\n            user = null;\n            _a.label = 6;\n\n          case 6:\n            _a.trys.push([6, 8,, 9]);\n\n            return [4\n            /*yield*/\n            , this.currentUserPoolUser(params)];\n\n          case 7:\n            user = _a.sent();\n            return [3\n            /*break*/\n            , 9];\n\n          case 8:\n            e_6 = _a.sent();\n\n            if (e_6 === 'No userPool') {\n              logger.error('Cannot get the current user because the user pool is missing. ' + 'Please make sure the Auth module is configured with a valid Cognito User Pool ID');\n            }\n\n            logger.debug('The user is not authenticated by the error', e_6);\n            throw 'not authenticated';\n\n          case 9:\n            this.user = user;\n            return [2\n            /*return*/\n            , this.user];\n        }\n      });\n    });\n  };\n  /**\n   * Get current user's session\n   * @return - A promise resolves to session object if success\n   */\n\n\n  AuthClass.prototype.currentSession = function () {\n    var that = this;\n    logger.debug('Getting current session'); // Purposely not calling the reject method here because we don't need a console error\n\n    if (!this.userPool) {\n      return Promise.reject();\n    }\n\n    return new Promise(function (res, rej) {\n      that.currentUserPoolUser().then(function (user) {\n        that.userSession(user).then(function (session) {\n          res(session);\n          return;\n        }).catch(function (e) {\n          logger.debug('Failed to get the current session', e);\n          rej(e);\n          return;\n        });\n      }).catch(function (e) {\n        logger.debug('Failed to get the current user', e);\n        rej(e);\n        return;\n      });\n    });\n  };\n  /**\n   * Get the corresponding user session\n   * @param {Object} user - The CognitoUser object\n   * @return - A promise resolves to the session\n   */\n\n\n  AuthClass.prototype.userSession = function (user) {\n    if (!user) {\n      logger.debug('the user is null');\n      return this.rejectAuthError(AuthErrorTypes.NoUserSession);\n    }\n\n    return new Promise(function (resolve, reject) {\n      logger.debug('Getting the session from this user:', user);\n      user.getSession(function (err, session) {\n        if (err) {\n          logger.debug('Failed to get the session from user', user);\n          reject(err);\n          return;\n        } else {\n          logger.debug('Succeed to get the user session', session);\n          resolve(session);\n          return;\n        }\n      });\n    });\n  };\n  /**\n   * Get  authenticated credentials of current user.\n   * @return - A promise resolves to be current user's credentials\n   */\n\n\n  AuthClass.prototype.currentUserCredentials = function () {\n    return __awaiter(this, void 0, void 0, function () {\n      var that, e_7, federatedInfo;\n      return __generator(this, function (_a) {\n        switch (_a.label) {\n          case 0:\n            that = this;\n            logger.debug('Getting current user credentials');\n            _a.label = 1;\n\n          case 1:\n            _a.trys.push([1, 3,, 4]);\n\n            return [4\n            /*yield*/\n            , this._storageSync];\n\n          case 2:\n            _a.sent();\n\n            return [3\n            /*break*/\n            , 4];\n\n          case 3:\n            e_7 = _a.sent();\n            logger.debug('Failed to sync cache info into memory', e_7);\n            throw e_7;\n\n          case 4:\n            federatedInfo = null;\n\n            try {\n              federatedInfo = JSON.parse(this._storage.getItem('aws-amplify-federatedInfo'));\n            } catch (e) {\n              logger.debug('failed to get or parse item aws-amplify-federatedInfo', e);\n            }\n\n            if (federatedInfo) {\n              // refresh the jwt token here if necessary\n              return [2\n              /*return*/\n              , Credentials.refreshFederatedToken(federatedInfo)];\n            } else {\n              return [2\n              /*return*/\n              , this.currentSession().then(function (session) {\n                logger.debug('getting session success', session);\n                return Credentials.set(session, 'session');\n              }).catch(function (error) {\n                logger.debug('getting session failed', error);\n                return Credentials.set(null, 'guest');\n              })];\n            }\n\n            return [2\n            /*return*/\n            ];\n        }\n      });\n    });\n  };\n\n  AuthClass.prototype.currentCredentials = function () {\n    logger.debug('getting current credntials');\n    return Credentials.get();\n  };\n  /**\n   * Initiate an attribute confirmation request\n   * @param {Object} user - The CognitoUser\n   * @param {Object} attr - The attributes to be verified\n   * @return - A promise resolves to callback data if success\n   */\n\n\n  AuthClass.prototype.verifyUserAttribute = function (user, attr, clientMetadata) {\n    if (clientMetadata === void 0) {\n      clientMetadata = this._config.clientMetadata;\n    }\n\n    return new Promise(function (resolve, reject) {\n      user.getAttributeVerificationCode(attr, {\n        onSuccess: function onSuccess() {\n          return resolve();\n        },\n        onFailure: function onFailure(err) {\n          return reject(err);\n        },\n        clientMetadata: clientMetadata\n      });\n    });\n  };\n  /**\n   * Confirm an attribute using a confirmation code\n   * @param {Object} user - The CognitoUser\n   * @param {Object} attr - The attribute to be verified\n   * @param {String} code - The confirmation code\n   * @return - A promise resolves to callback data if success\n   */\n\n\n  AuthClass.prototype.verifyUserAttributeSubmit = function (user, attr, code) {\n    if (!code) {\n      return this.rejectAuthError(AuthErrorTypes.EmptyCode);\n    }\n\n    return new Promise(function (resolve, reject) {\n      user.verifyAttribute(attr, code, {\n        onSuccess: function onSuccess(data) {\n          resolve(data);\n          return;\n        },\n        onFailure: function onFailure(err) {\n          reject(err);\n          return;\n        }\n      });\n    });\n  };\n\n  AuthClass.prototype.verifyCurrentUserAttribute = function (attr) {\n    var that = this;\n    return that.currentUserPoolUser().then(function (user) {\n      return that.verifyUserAttribute(user, attr);\n    });\n  };\n  /**\n   * Confirm current user's attribute using a confirmation code\n   * @param {Object} attr - The attribute to be verified\n   * @param {String} code - The confirmation code\n   * @return - A promise resolves to callback data if success\n   */\n\n\n  AuthClass.prototype.verifyCurrentUserAttributeSubmit = function (attr, code) {\n    var that = this;\n    return that.currentUserPoolUser().then(function (user) {\n      return that.verifyUserAttributeSubmit(user, attr, code);\n    });\n  };\n\n  AuthClass.prototype.cognitoIdentitySignOut = function (opts, user) {\n    return __awaiter(this, void 0, void 0, function () {\n      var e_8, isSignedInHostedUI;\n\n      var _this = this;\n\n      return __generator(this, function (_a) {\n        switch (_a.label) {\n          case 0:\n            _a.trys.push([0, 2,, 3]);\n\n            return [4\n            /*yield*/\n            , this._storageSync];\n\n          case 1:\n            _a.sent();\n\n            return [3\n            /*break*/\n            , 3];\n\n          case 2:\n            e_8 = _a.sent();\n            logger.debug('Failed to sync cache info into memory', e_8);\n            throw e_8;\n\n          case 3:\n            isSignedInHostedUI = this._oAuthHandler && this._storage.getItem('amplify-signin-with-hostedUI') === 'true';\n            return [2\n            /*return*/\n            , new Promise(function (res, rej) {\n              if (opts && opts.global) {\n                logger.debug('user global sign out', user); // in order to use global signout\n                // we must validate the user as an authenticated user by using getSession\n\n                user.getSession(function (err, result) {\n                  if (err) {\n                    logger.debug('failed to get the user session', err);\n                    return rej(err);\n                  }\n\n                  user.globalSignOut({\n                    onSuccess: function onSuccess(data) {\n                      logger.debug('global sign out success');\n\n                      if (isSignedInHostedUI) {\n                        return res(_this._oAuthHandler.signOut());\n                      } else {\n                        return res();\n                      }\n                    },\n                    onFailure: function onFailure(err) {\n                      logger.debug('global sign out failed', err);\n                      return rej(err);\n                    }\n                  });\n                });\n              } else {\n                logger.debug('user sign out', user);\n                user.signOut();\n\n                if (isSignedInHostedUI) {\n                  return res(_this._oAuthHandler.signOut());\n                } else {\n                  return res();\n                }\n              }\n            })];\n        }\n      });\n    });\n  };\n  /**\n   * Sign out method\n   * @\n   * @return - A promise resolved if success\n   */\n\n\n  AuthClass.prototype.signOut = function (opts) {\n    return __awaiter(this, void 0, void 0, function () {\n      var e_9, user;\n      return __generator(this, function (_a) {\n        switch (_a.label) {\n          case 0:\n            _a.trys.push([0, 2,, 3]);\n\n            return [4\n            /*yield*/\n            , this.cleanCachedItems()];\n\n          case 1:\n            _a.sent();\n\n            return [3\n            /*break*/\n            , 3];\n\n          case 2:\n            e_9 = _a.sent();\n            logger.debug('failed to clear cached items');\n            return [3\n            /*break*/\n            , 3];\n\n          case 3:\n            if (!this.userPool) return [3\n            /*break*/\n            , 7];\n            user = this.userPool.getCurrentUser();\n            if (!user) return [3\n            /*break*/\n            , 5];\n            return [4\n            /*yield*/\n            , this.cognitoIdentitySignOut(opts, user)];\n\n          case 4:\n            _a.sent();\n\n            return [3\n            /*break*/\n            , 6];\n\n          case 5:\n            logger.debug('no current Cognito user');\n            _a.label = 6;\n\n          case 6:\n            return [3\n            /*break*/\n            , 8];\n\n          case 7:\n            logger.debug('no Congito User pool');\n            _a.label = 8;\n\n          case 8:\n            /**\n             * Note for future refactor - no reliable way to get username with\n             * Cognito User Pools vs Identity when federating with Social Providers\n             * This is why we need a well structured session object that can be inspected\n             * and information passed back in the message below for Hub dispatch\n             */\n            dispatchAuthEvent('signOut', this.user, \"A user has been signed out\");\n            this.user = null;\n            return [2\n            /*return*/\n            ];\n        }\n      });\n    });\n  };\n\n  AuthClass.prototype.cleanCachedItems = function () {\n    return __awaiter(this, void 0, void 0, function () {\n      return __generator(this, function (_a) {\n        switch (_a.label) {\n          case 0:\n            // clear cognito cached item\n            return [4\n            /*yield*/\n            , Credentials.clear()];\n\n          case 1:\n            // clear cognito cached item\n            _a.sent();\n\n            return [2\n            /*return*/\n            ];\n        }\n      });\n    });\n  };\n  /**\n   * Change a password for an authenticated user\n   * @param {Object} user - The CognitoUser object\n   * @param {String} oldPassword - the current password\n   * @param {String} newPassword - the requested new password\n   * @return - A promise resolves if success\n   */\n\n\n  AuthClass.prototype.changePassword = function (user, oldPassword, newPassword, clientMetadata) {\n    var _this = this;\n\n    if (clientMetadata === void 0) {\n      clientMetadata = this._config.clientMetadata;\n    }\n\n    return new Promise(function (resolve, reject) {\n      _this.userSession(user).then(function (session) {\n        user.changePassword(oldPassword, newPassword, function (err, data) {\n          if (err) {\n            logger.debug('change password failure', err);\n            return reject(err);\n          } else {\n            return resolve(data);\n          }\n        }, clientMetadata);\n      });\n    });\n  };\n  /**\n   * Initiate a forgot password request\n   * @param {String} username - the username to change password\n   * @return - A promise resolves if success\n   */\n\n\n  AuthClass.prototype.forgotPassword = function (username, clientMetadata) {\n    if (clientMetadata === void 0) {\n      clientMetadata = this._config.clientMetadata;\n    }\n\n    if (!this.userPool) {\n      return this.rejectNoUserPool();\n    }\n\n    if (!username) {\n      return this.rejectAuthError(AuthErrorTypes.EmptyUsername);\n    }\n\n    var user = this.createCognitoUser(username);\n    return new Promise(function (resolve, reject) {\n      user.forgotPassword({\n        onSuccess: function onSuccess() {\n          resolve();\n          return;\n        },\n        onFailure: function onFailure(err) {\n          logger.debug('forgot password failure', err);\n          dispatchAuthEvent('forgotPassword_failure', err, username + \" forgotPassword failed\");\n          reject(err);\n          return;\n        },\n        inputVerificationCode: function inputVerificationCode(data) {\n          dispatchAuthEvent('forgotPassword', user, username + \" has initiated forgot password flow\");\n          resolve(data);\n          return;\n        }\n      }, clientMetadata);\n    });\n  };\n  /**\n   * Confirm a new password using a confirmation Code\n   * @param {String} username - The username\n   * @param {String} code - The confirmation code\n   * @param {String} password - The new password\n   * @return - A promise that resolves if success\n   */\n\n\n  AuthClass.prototype.forgotPasswordSubmit = function (username, code, password, clientMetadata) {\n    if (clientMetadata === void 0) {\n      clientMetadata = this._config.clientMetadata;\n    }\n\n    if (!this.userPool) {\n      return this.rejectNoUserPool();\n    }\n\n    if (!username) {\n      return this.rejectAuthError(AuthErrorTypes.EmptyUsername);\n    }\n\n    if (!code) {\n      return this.rejectAuthError(AuthErrorTypes.EmptyCode);\n    }\n\n    if (!password) {\n      return this.rejectAuthError(AuthErrorTypes.EmptyPassword);\n    }\n\n    var user = this.createCognitoUser(username);\n    return new Promise(function (resolve, reject) {\n      user.confirmPassword(code, password, {\n        onSuccess: function onSuccess() {\n          dispatchAuthEvent('forgotPasswordSubmit', user, username + \" forgotPasswordSubmit successful\");\n          resolve();\n          return;\n        },\n        onFailure: function onFailure(err) {\n          dispatchAuthEvent('forgotPasswordSubmit_failure', err, username + \" forgotPasswordSubmit failed\");\n          reject(err);\n          return;\n        }\n      }, clientMetadata);\n    });\n  };\n  /**\n   * Get user information\n   * @async\n   * @return {Object }- current User's information\n   */\n\n\n  AuthClass.prototype.currentUserInfo = function () {\n    return __awaiter(this, void 0, void 0, function () {\n      var source, user, attributes, userAttrs, credentials, e_10, info, err_1, user;\n      return __generator(this, function (_a) {\n        switch (_a.label) {\n          case 0:\n            source = Credentials.getCredSource();\n            if (!(!source || source === 'aws' || source === 'userPool')) return [3\n            /*break*/\n            , 9];\n            return [4\n            /*yield*/\n            , this.currentUserPoolUser().catch(function (err) {\n              return logger.debug(err);\n            })];\n\n          case 1:\n            user = _a.sent();\n\n            if (!user) {\n              return [2\n              /*return*/\n              , null];\n            }\n\n            _a.label = 2;\n\n          case 2:\n            _a.trys.push([2, 8,, 9]);\n\n            return [4\n            /*yield*/\n            , this.userAttributes(user)];\n\n          case 3:\n            attributes = _a.sent();\n            userAttrs = this.attributesToObject(attributes);\n            credentials = null;\n            _a.label = 4;\n\n          case 4:\n            _a.trys.push([4, 6,, 7]);\n\n            return [4\n            /*yield*/\n            , this.currentCredentials()];\n\n          case 5:\n            credentials = _a.sent();\n            return [3\n            /*break*/\n            , 7];\n\n          case 6:\n            e_10 = _a.sent();\n            logger.debug('Failed to retrieve credentials while getting current user info', e_10);\n            return [3\n            /*break*/\n            , 7];\n\n          case 7:\n            info = {\n              id: credentials ? credentials.identityId : undefined,\n              username: user.getUsername(),\n              attributes: userAttrs\n            };\n            return [2\n            /*return*/\n            , info];\n\n          case 8:\n            err_1 = _a.sent();\n            logger.debug('currentUserInfo error', err_1);\n            return [2\n            /*return*/\n            , {}];\n\n          case 9:\n            if (source === 'federated') {\n              user = this.user;\n              return [2\n              /*return*/\n              , user ? user : {}];\n            }\n\n            return [2\n            /*return*/\n            ];\n        }\n      });\n    });\n  };\n\n  AuthClass.prototype.federatedSignIn = function (providerOrOptions, response, user) {\n    return __awaiter(this, void 0, void 0, function () {\n      var options, provider, customState, client_id, redirect_uri, provider, loggedInUser, token, identity_id, expires_at, credentials, currentUser;\n      return __generator(this, function (_a) {\n        switch (_a.label) {\n          case 0:\n            if (!this._config.identityPoolId && !this._config.userPoolId) {\n              throw new Error(\"Federation requires either a User Pool or Identity Pool in config\");\n            } // Ensure backwards compatability\n\n\n            if (typeof providerOrOptions === 'undefined') {\n              if (this._config.identityPoolId && !this._config.userPoolId) {\n                throw new Error(\"Federation with Identity Pools requires tokens passed as arguments\");\n              }\n            }\n\n            if (!(isFederatedSignInOptions(providerOrOptions) || isFederatedSignInOptionsCustom(providerOrOptions) || typeof providerOrOptions === 'undefined')) return [3\n            /*break*/\n            , 1];\n            options = providerOrOptions || {\n              provider: CognitoHostedUIIdentityProvider.Cognito\n            };\n            provider = isFederatedSignInOptions(options) ? options.provider : options.customProvider;\n            customState = isFederatedSignInOptions(options) ? options.customState : options.customState;\n\n            if (this._config.userPoolId) {\n              client_id = isCognitoHostedOpts(this._config.oauth) ? this._config.userPoolWebClientId : this._config.oauth.clientID;\n              redirect_uri = isCognitoHostedOpts(this._config.oauth) ? this._config.oauth.redirectSignIn : this._config.oauth.redirectUri;\n\n              this._oAuthHandler.oauthSignIn(this._config.oauth.responseType, this._config.oauth.domain, redirect_uri, client_id, provider, customState);\n            }\n\n            return [3\n            /*break*/\n            , 4];\n\n          case 1:\n            provider = providerOrOptions; // To check if the user is already logged in\n\n            try {\n              loggedInUser = JSON.stringify(JSON.parse(this._storage.getItem('aws-amplify-federatedInfo')).user);\n\n              if (loggedInUser) {\n                logger.warn(\"There is already a signed in user: \" + loggedInUser + \" in your app.\\n\\t\\t\\t\\t\\t\\t\\t\\t\\t\\t\\t\\t\\t\\t\\t\\t\\tYou should not call Auth.federatedSignIn method again as it may cause unexpected behavior.\");\n              }\n            } catch (e) {}\n\n            token = response.token, identity_id = response.identity_id, expires_at = response.expires_at;\n            return [4\n            /*yield*/\n            , Credentials.set({\n              provider: provider,\n              token: token,\n              identity_id: identity_id,\n              user: user,\n              expires_at: expires_at\n            }, 'federation')];\n\n          case 2:\n            credentials = _a.sent();\n            return [4\n            /*yield*/\n            , this.currentAuthenticatedUser()];\n\n          case 3:\n            currentUser = _a.sent();\n            dispatchAuthEvent('signIn', currentUser, \"A user \" + currentUser.username + \" has been signed in\");\n            logger.debug('federated sign in credentials', credentials);\n            return [2\n            /*return*/\n            , credentials];\n\n          case 4:\n            return [2\n            /*return*/\n            ];\n        }\n      });\n    });\n  };\n  /**\n   * Used to complete the OAuth flow with or without the Cognito Hosted UI\n   * @param {String} URL - optional parameter for customers to pass in the response URL\n   */\n\n\n  AuthClass.prototype._handleAuthResponse = function (URL) {\n    return __awaiter(this, void 0, void 0, function () {\n      var currentUrl, hasCodeOrError, hasTokenOrError, _a, accessToken, idToken, refreshToken, state, session, credentials, isCustomStateIncluded, currentUser, _b, customState, err_2;\n\n      return __generator(this, function (_c) {\n        switch (_c.label) {\n          case 0:\n            if (!this._config.userPoolId) {\n              throw new Error(\"OAuth responses require a User Pool defined in config\");\n            }\n\n            dispatchAuthEvent('parsingCallbackUrl', {\n              url: URL\n            }, \"The callback url is being parsed\");\n            currentUrl = URL || (JS.browserOrNode().isBrowser ? window.location.href : '');\n            hasCodeOrError = !!(parse(currentUrl).query || '').split('&').map(function (entry) {\n              return entry.split('=');\n            }).find(function (_a) {\n              var k = _a[0];\n              return k === 'code' || k === 'error';\n            });\n            hasTokenOrError = !!(parse(currentUrl).hash || '#').substr(1).split('&').map(function (entry) {\n              return entry.split('=');\n            }).find(function (_a) {\n              var k = _a[0];\n              return k === 'access_token' || k === 'error';\n            });\n            if (!(hasCodeOrError || hasTokenOrError)) return [3\n            /*break*/\n            , 6];\n            _c.label = 1;\n\n          case 1:\n            _c.trys.push([1, 5,, 6]);\n\n            return [4\n            /*yield*/\n            , this._oAuthHandler.handleAuthResponse(currentUrl)];\n\n          case 2:\n            _a = _c.sent(), accessToken = _a.accessToken, idToken = _a.idToken, refreshToken = _a.refreshToken, state = _a.state;\n            session = new CognitoUserSession({\n              IdToken: new CognitoIdToken({\n                IdToken: idToken\n              }),\n              RefreshToken: new CognitoRefreshToken({\n                RefreshToken: refreshToken\n              }),\n              AccessToken: new CognitoAccessToken({\n                AccessToken: accessToken\n              })\n            });\n            credentials = void 0;\n            if (!this._config.identityPoolId) return [3\n            /*break*/\n            , 4];\n            return [4\n            /*yield*/\n            , Credentials.set(session, 'session')];\n\n          case 3:\n            credentials = _c.sent();\n            logger.debug('AWS credentials', credentials);\n            _c.label = 4;\n\n          case 4:\n            isCustomStateIncluded = /-/.test(state);\n            currentUser = this.createCognitoUser(session.getIdToken().decodePayload()['cognito:username']);\n            dispatchAuthEvent('signIn', currentUser, \"A user \" + currentUser.getUsername() + \" has been signed in\");\n            dispatchAuthEvent('cognitoHostedUI', currentUser, \"A user \" + currentUser.getUsername() + \" has been signed in via Cognito Hosted UI\");\n\n            if (isCustomStateIncluded) {\n              _b = state.split('-'), customState = _b[1];\n              dispatchAuthEvent('customOAuthState', customState, \"State for user \" + currentUser.getUsername());\n            } // This calls cacheTokens() in Cognito SDK\n\n\n            currentUser.setSignInUserSession(session); //#endregion\n\n            if (window && typeof window.history !== 'undefined') {\n              window.history.replaceState({}, null, this._config.oauth.redirectSignIn);\n            }\n\n            return [2\n            /*return*/\n            , credentials];\n\n          case 5:\n            err_2 = _c.sent();\n            logger.debug('Error in cognito hosted auth response', err_2);\n            dispatchAuthEvent('signIn_failure', err_2, \"The OAuth response flow failed\");\n            dispatchAuthEvent('cognitoHostedUI_failure', err_2, \"A failure occurred when returning to the Cognito Hosted UI\");\n            dispatchAuthEvent('customState_failure', err_2, \"A failure occurred when returning state\");\n            throw err_2;\n\n          case 6:\n            return [2\n            /*return*/\n            ];\n        }\n      });\n    });\n  };\n  /**\n   * Compact version of credentials\n   * @param {Object} credentials\n   * @return {Object} - Credentials\n   */\n\n\n  AuthClass.prototype.essentialCredentials = function (credentials) {\n    return {\n      accessKeyId: credentials.accessKeyId,\n      sessionToken: credentials.sessionToken,\n      secretAccessKey: credentials.secretAccessKey,\n      identityId: credentials.identityId,\n      authenticated: credentials.authenticated\n    };\n  };\n\n  AuthClass.prototype.attributesToObject = function (attributes) {\n    var obj = {};\n\n    if (attributes) {\n      attributes.map(function (attribute) {\n        if (attribute.Value === 'true') {\n          obj[attribute.Name] = true;\n        } else if (attribute.Value === 'false') {\n          obj[attribute.Name] = false;\n        } else {\n          obj[attribute.Name] = attribute.Value;\n        }\n      });\n    }\n\n    return obj;\n  };\n\n  AuthClass.prototype.createCognitoUser = function (username) {\n    var userData = {\n      Username: username,\n      Pool: this.userPool\n    };\n    userData.Storage = this._storage;\n    var authenticationFlowType = this._config.authenticationFlowType;\n    var user = new CognitoUser(userData);\n\n    if (authenticationFlowType) {\n      user.setAuthenticationFlowType(authenticationFlowType);\n    }\n\n    return user;\n  };\n\n  AuthClass.prototype._isValidAuthStorage = function (obj) {\n    // We need to check if the obj has the functions of Storage\n    return !!obj && typeof obj.getItem === 'function' && typeof obj.setItem === 'function' && typeof obj.removeItem === 'function' && typeof obj.clear === 'function';\n  };\n\n  AuthClass.prototype.noUserPoolErrorHandler = function (config) {\n    if (config) {\n      if (!config.userPoolId || !config.identityPoolId) {\n        return AuthErrorTypes.MissingAuthConfig;\n      }\n    }\n\n    return AuthErrorTypes.NoConfig;\n  };\n\n  AuthClass.prototype.rejectAuthError = function (type) {\n    return Promise.reject(new AuthError(type));\n  };\n\n  AuthClass.prototype.rejectNoUserPool = function () {\n    var type = this.noUserPoolErrorHandler(this._config);\n    return Promise.reject(new NoUserPoolError(type));\n  };\n\n  return AuthClass;\n}();\n\nexport default AuthClass;","/*\n * Copyright 2017-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n *     http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nvar SELF = '_self';\nexport var launchUri = function launchUri(url) {\n  var windowProxy = window.open(url, SELF);\n\n  if (windowProxy) {\n    return Promise.resolve(windowProxy);\n  } else {\n    return Promise.reject();\n  }\n};","import \"core-js/modules/es.array.reduce.js\";\n\n/*\n * Copyright 2017-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n *     http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nvar __assign = this && this.__assign || function () {\n  __assign = Object.assign || function (t) {\n    for (var s, i = 1, n = arguments.length; i < n; i++) {\n      s = arguments[i];\n\n      for (var p in s) {\n        if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\n      }\n    }\n\n    return t;\n  };\n\n  return __assign.apply(this, arguments);\n};\n\nvar __awaiter = this && this.__awaiter || function (thisArg, _arguments, P, generator) {\n  function adopt(value) {\n    return value instanceof P ? value : new P(function (resolve) {\n      resolve(value);\n    });\n  }\n\n  return new (P || (P = Promise))(function (resolve, reject) {\n    function fulfilled(value) {\n      try {\n        step(generator.next(value));\n      } catch (e) {\n        reject(e);\n      }\n    }\n\n    function rejected(value) {\n      try {\n        step(generator[\"throw\"](value));\n      } catch (e) {\n        reject(e);\n      }\n    }\n\n    function step(result) {\n      result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected);\n    }\n\n    step((generator = generator.apply(thisArg, _arguments || [])).next());\n  });\n};\n\nvar __generator = this && this.__generator || function (thisArg, body) {\n  var _ = {\n    label: 0,\n    sent: function sent() {\n      if (t[0] & 1) throw t[1];\n      return t[1];\n    },\n    trys: [],\n    ops: []\n  },\n      f,\n      y,\n      t,\n      g;\n  return g = {\n    next: verb(0),\n    \"throw\": verb(1),\n    \"return\": verb(2)\n  }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function () {\n    return this;\n  }), g;\n\n  function verb(n) {\n    return function (v) {\n      return step([n, v]);\n    };\n  }\n\n  function step(op) {\n    if (f) throw new TypeError(\"Generator is already executing.\");\n\n    while (_) {\n      try {\n        if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\n        if (y = 0, t) op = [op[0] & 2, t.value];\n\n        switch (op[0]) {\n          case 0:\n          case 1:\n            t = op;\n            break;\n\n          case 4:\n            _.label++;\n            return {\n              value: op[1],\n              done: false\n            };\n\n          case 5:\n            _.label++;\n            y = op[1];\n            op = [0];\n            continue;\n\n          case 7:\n            op = _.ops.pop();\n\n            _.trys.pop();\n\n            continue;\n\n          default:\n            if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) {\n              _ = 0;\n              continue;\n            }\n\n            if (op[0] === 3 && (!t || op[1] > t[0] && op[1] < t[3])) {\n              _.label = op[1];\n              break;\n            }\n\n            if (op[0] === 6 && _.label < t[1]) {\n              _.label = t[1];\n              t = op;\n              break;\n            }\n\n            if (t && _.label < t[2]) {\n              _.label = t[2];\n\n              _.ops.push(op);\n\n              break;\n            }\n\n            if (t[2]) _.ops.pop();\n\n            _.trys.pop();\n\n            continue;\n        }\n\n        op = body.call(thisArg, _);\n      } catch (e) {\n        op = [6, e];\n        y = 0;\n      } finally {\n        f = t = 0;\n      }\n    }\n\n    if (op[0] & 5) throw op[1];\n    return {\n      value: op[0] ? op[1] : void 0,\n      done: true\n    };\n  }\n};\n\nimport { parse } from 'url'; // Used for OAuth parsing of Cognito Hosted UI\n\nimport { launchUri } from './urlOpener';\nimport * as oAuthStorage from './oauthStorage';\nimport { isCognitoHostedOpts, CognitoHostedUIIdentityProvider } from '../types/Auth';\nimport { ConsoleLogger as Logger, Hub } from '@aws-amplify/core';\n\nvar SHA256 = require('crypto-js/sha256');\n\nvar Base64 = require('crypto-js/enc-base64');\n\nvar AMPLIFY_SYMBOL = typeof Symbol !== 'undefined' && typeof Symbol.for === 'function' ? Symbol.for('amplify_default') : '@@amplify_default';\n\nvar dispatchAuthEvent = function dispatchAuthEvent(event, data, message) {\n  Hub.dispatch('auth', {\n    event: event,\n    data: data,\n    message: message\n  }, 'Auth', AMPLIFY_SYMBOL);\n};\n\nvar logger = new Logger('OAuth');\n\nvar OAuth =\n/** @class */\nfunction () {\n  function OAuth(_a) {\n    var config = _a.config,\n        cognitoClientId = _a.cognitoClientId,\n        _b = _a.scopes,\n        scopes = _b === void 0 ? [] : _b;\n    this._urlOpener = config.urlOpener || launchUri;\n    this._config = config;\n    this._cognitoClientId = cognitoClientId;\n    this._scopes = scopes;\n  }\n\n  OAuth.prototype.oauthSignIn = function (responseType, domain, redirectSignIn, clientId, provider, customState) {\n    if (responseType === void 0) {\n      responseType = 'code';\n    }\n\n    if (provider === void 0) {\n      provider = CognitoHostedUIIdentityProvider.Cognito;\n    }\n\n    var generatedState = this._generateState(32);\n\n    var state = customState ? generatedState + \"-\" + customState : generatedState;\n    oAuthStorage.setState(encodeURIComponent(state));\n\n    var pkce_key = this._generateRandom(128);\n\n    oAuthStorage.setPKCE(pkce_key);\n\n    var code_challenge = this._generateChallenge(pkce_key);\n\n    var code_challenge_method = 'S256';\n    var queryString = Object.entries(__assign(__assign({\n      redirect_uri: redirectSignIn,\n      response_type: responseType,\n      client_id: clientId,\n      identity_provider: provider,\n      scopes: this._scopes,\n      state: state\n    }, responseType === 'code' ? {\n      code_challenge: code_challenge\n    } : {}), responseType === 'code' ? {\n      code_challenge_method: code_challenge_method\n    } : {})).map(function (_a) {\n      var k = _a[0],\n          v = _a[1];\n      return encodeURIComponent(k) + \"=\" + encodeURIComponent(v);\n    }).join('&');\n    var URL = \"https://\" + domain + \"/oauth2/authorize?\" + queryString;\n    logger.debug(\"Redirecting to \" + URL);\n\n    this._urlOpener(URL, redirectSignIn);\n  };\n\n  OAuth.prototype._handleCodeFlow = function (currentUrl) {\n    return __awaiter(this, void 0, void 0, function () {\n      var code, oAuthTokenEndpoint, client_id, redirect_uri, code_verifier, oAuthTokenBody, body, _a, access_token, refresh_token, id_token, error;\n\n      return __generator(this, function (_b) {\n        switch (_b.label) {\n          case 0:\n            code = (parse(currentUrl).query || '').split('&').map(function (pairings) {\n              return pairings.split('=');\n            }).reduce(function (accum, _a) {\n              var _b;\n\n              var k = _a[0],\n                  v = _a[1];\n              return __assign(__assign({}, accum), (_b = {}, _b[k] = v, _b));\n            }, {\n              code: undefined\n            }).code;\n\n            if (!code) {\n              return [2\n              /*return*/\n              ];\n            }\n\n            oAuthTokenEndpoint = 'https://' + this._config.domain + '/oauth2/token';\n            dispatchAuthEvent('codeFlow', {}, \"Retrieving tokens from \" + oAuthTokenEndpoint);\n            client_id = isCognitoHostedOpts(this._config) ? this._cognitoClientId : this._config.clientID;\n            redirect_uri = isCognitoHostedOpts(this._config) ? this._config.redirectSignIn : this._config.redirectUri;\n            code_verifier = oAuthStorage.getPKCE();\n            oAuthTokenBody = __assign({\n              grant_type: 'authorization_code',\n              code: code,\n              client_id: client_id,\n              redirect_uri: redirect_uri\n            }, code_verifier ? {\n              code_verifier: code_verifier\n            } : {});\n            logger.debug(\"Calling token endpoint: \" + oAuthTokenEndpoint + \" with\", oAuthTokenBody);\n            body = Object.entries(oAuthTokenBody).map(function (_a) {\n              var k = _a[0],\n                  v = _a[1];\n              return encodeURIComponent(k) + \"=\" + encodeURIComponent(v);\n            }).join('&');\n            return [4\n            /*yield*/\n            , fetch(oAuthTokenEndpoint, {\n              method: 'POST',\n              headers: {\n                'Content-Type': 'application/x-www-form-urlencoded'\n              },\n              body: body\n            })];\n\n          case 1:\n            return [4\n            /*yield*/\n            , _b.sent().json()];\n\n          case 2:\n            _a = _b.sent(), access_token = _a.access_token, refresh_token = _a.refresh_token, id_token = _a.id_token, error = _a.error;\n\n            if (error) {\n              throw new Error(error);\n            }\n\n            return [2\n            /*return*/\n            , {\n              accessToken: access_token,\n              refreshToken: refresh_token,\n              idToken: id_token\n            }];\n        }\n      });\n    });\n  };\n\n  OAuth.prototype._handleImplicitFlow = function (currentUrl) {\n    return __awaiter(this, void 0, void 0, function () {\n      var _a, id_token, access_token;\n\n      return __generator(this, function (_b) {\n        _a = parse(currentUrl).hash.substr(1) // Remove # from returned code\n        .split('&').map(function (pairings) {\n          return pairings.split('=');\n        }).reduce(function (accum, _a) {\n          var _b;\n\n          var k = _a[0],\n              v = _a[1];\n          return __assign(__assign({}, accum), (_b = {}, _b[k] = v, _b));\n        }, {\n          id_token: undefined,\n          access_token: undefined\n        }), id_token = _a.id_token, access_token = _a.access_token;\n        dispatchAuthEvent('implicitFlow', {}, \"Got tokens from \" + currentUrl);\n        logger.debug(\"Retrieving implicit tokens from \" + currentUrl + \" with\");\n        return [2\n        /*return*/\n        , {\n          accessToken: access_token,\n          idToken: id_token,\n          refreshToken: null\n        }];\n      });\n    });\n  };\n\n  OAuth.prototype.handleAuthResponse = function (currentUrl) {\n    return __awaiter(this, void 0, void 0, function () {\n      var urlParams, error, error_description, state, _a, _b, e_1;\n\n      return __generator(this, function (_c) {\n        switch (_c.label) {\n          case 0:\n            _c.trys.push([0, 5,, 6]);\n\n            urlParams = currentUrl ? __assign(__assign({}, (parse(currentUrl).hash || '#').substr(1).split('&').map(function (entry) {\n              return entry.split('=');\n            }).reduce(function (acc, _a) {\n              var k = _a[0],\n                  v = _a[1];\n              return acc[k] = v, acc;\n            }, {})), (parse(currentUrl).query || '').split('&').map(function (entry) {\n              return entry.split('=');\n            }).reduce(function (acc, _a) {\n              var k = _a[0],\n                  v = _a[1];\n              return acc[k] = v, acc;\n            }, {})) : {};\n            error = urlParams.error, error_description = urlParams.error_description;\n\n            if (error) {\n              throw new Error(error_description);\n            }\n\n            state = this._validateState(urlParams);\n            logger.debug(\"Starting \" + this._config.responseType + \" flow with \" + currentUrl);\n            if (!(this._config.responseType === 'code')) return [3\n            /*break*/\n            , 2];\n            _a = [{}];\n            return [4\n            /*yield*/\n            , this._handleCodeFlow(currentUrl)];\n\n          case 1:\n            return [2\n            /*return*/\n            , __assign.apply(void 0, [__assign.apply(void 0, _a.concat([_c.sent()])), {\n              state: state\n            }])];\n\n          case 2:\n            _b = [{}];\n            return [4\n            /*yield*/\n            , this._handleImplicitFlow(currentUrl)];\n\n          case 3:\n            return [2\n            /*return*/\n            , __assign.apply(void 0, [__assign.apply(void 0, _b.concat([_c.sent()])), {\n              state: state\n            }])];\n\n          case 4:\n            return [3\n            /*break*/\n            , 6];\n\n          case 5:\n            e_1 = _c.sent();\n            logger.error(\"Error handling auth response.\", e_1);\n            return [3\n            /*break*/\n            , 6];\n\n          case 6:\n            return [2\n            /*return*/\n            ];\n        }\n      });\n    });\n  };\n\n  OAuth.prototype._validateState = function (urlParams) {\n    if (!urlParams) {\n      return;\n    }\n\n    var savedState = oAuthStorage.getState();\n    var returnedState = urlParams.state; // This is because savedState only exists if the flow was initiated by Amplify\n\n    if (savedState && savedState !== returnedState) {\n      throw new Error('Invalid state in OAuth flow');\n    }\n\n    return returnedState;\n  };\n\n  OAuth.prototype.signOut = function () {\n    return __awaiter(this, void 0, void 0, function () {\n      var oAuthLogoutEndpoint, client_id, signout_uri;\n      return __generator(this, function (_a) {\n        oAuthLogoutEndpoint = 'https://' + this._config.domain + '/logout?';\n        client_id = isCognitoHostedOpts(this._config) ? this._cognitoClientId : this._config.oauth.clientID;\n        signout_uri = isCognitoHostedOpts(this._config) ? this._config.redirectSignOut : this._config.returnTo;\n        oAuthLogoutEndpoint += Object.entries({\n          client_id: client_id,\n          logout_uri: encodeURIComponent(signout_uri)\n        }).map(function (_a) {\n          var k = _a[0],\n              v = _a[1];\n          return k + \"=\" + v;\n        }).join('&');\n        dispatchAuthEvent('oAuthSignOut', {\n          oAuth: 'signOut'\n        }, \"Signing out from \" + oAuthLogoutEndpoint);\n        logger.debug(\"Signing out from \" + oAuthLogoutEndpoint);\n        return [2\n        /*return*/\n        , this._urlOpener(oAuthLogoutEndpoint)];\n      });\n    });\n  };\n\n  OAuth.prototype._generateState = function (length) {\n    var result = '';\n    var i = length;\n    var chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';\n\n    for (; i > 0; --i) {\n      result += chars[Math.round(Math.random() * (chars.length - 1))];\n    }\n\n    return result;\n  };\n\n  OAuth.prototype._generateChallenge = function (code) {\n    return this._base64URL(SHA256(code));\n  };\n\n  OAuth.prototype._base64URL = function (string) {\n    return string.toString(Base64).replace(/=/g, '').replace(/\\+/g, '-').replace(/\\//g, '_');\n  };\n\n  OAuth.prototype._generateRandom = function (size) {\n    var CHARSET = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~';\n    var buffer = new Uint8Array(size);\n\n    if (typeof window !== 'undefined' && !!window.crypto) {\n      window.crypto.getRandomValues(buffer);\n    } else {\n      for (var i = 0; i < size; i += 1) {\n        buffer[i] = Math.random() * CHARSET.length | 0;\n      }\n    }\n\n    return this._bufferToString(buffer);\n  };\n\n  OAuth.prototype._bufferToString = function (buffer) {\n    var CHARSET = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';\n    var state = [];\n\n    for (var i = 0; i < buffer.byteLength; i += 1) {\n      var index = buffer[i] % CHARSET.length;\n      state.push(CHARSET[index]);\n    }\n\n    return state.join('');\n  };\n\n  return OAuth;\n}();\n\nexport default OAuth;","/*\n * Copyright 2017-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n *     http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nexport var setState = function setState(state) {\n  window.sessionStorage.setItem('oauth_state', state);\n};\nexport var getState = function getState() {\n  var oauth_state = window.sessionStorage.getItem('oauth_state');\n  window.sessionStorage.removeItem('oauth_state');\n  return oauth_state;\n};\nexport var setPKCE = function setPKCE(private_key) {\n  window.sessionStorage.setItem('ouath_pkce_key', private_key);\n};\nexport var getPKCE = function getPKCE() {\n  var ouath_pkce_key = window.sessionStorage.getItem('ouath_pkce_key');\n  window.sessionStorage.removeItem('ouath_pkce_key');\n  return ouath_pkce_key;\n};\nexport var clearAll = function clearAll() {\n  window.sessionStorage.removeItem('ouath_pkce_key');\n  window.sessionStorage.removeItem('oauth_state');\n};","/*\n * Copyright 2017-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n *     http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nimport { JS } from '@aws-amplify/core';\nexport default (function (callback) {\n  if (JS.browserOrNode().isBrowser && window.location) {\n    var url = window.location.href;\n    callback({\n      url: url\n    });\n  } else if (JS.browserOrNode().isNode) {\n    // continue building on ssr\n    (function () {}); // noop\n\n  } else {\n    throw new Error('Not supported');\n  }\n});","/*\n * Copyright 2017-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n *     http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nimport AuthClass, { CognitoHostedUIIdentityProvider } from './Auth';\nimport { CognitoUser, CookieStorage } from 'amazon-cognito-identity-js';\nimport Amplify, { ConsoleLogger as Logger } from '@aws-amplify/core';\nvar logger = new Logger('Auth');\nvar _instance = null;\n\nif (!_instance) {\n  logger.debug('Create Auth Instance');\n  _instance = new AuthClass(null);\n}\n\nvar Auth = _instance;\nAmplify.register(Auth);\nexport default Auth;\nexport { AuthClass, CognitoUser, CookieStorage, CognitoHostedUIIdentityProvider };","var util = require('../util');\n\nvar XmlNode = require('./xml-node').XmlNode;\n\nvar XmlText = require('./xml-text').XmlText;\n\nfunction XmlBuilder() {}\n\nXmlBuilder.prototype.toXML = function (params, shape, rootElement, noEmpty) {\n  var xml = new XmlNode(rootElement);\n  applyNamespaces(xml, shape, true);\n  serialize(xml, params, shape);\n  return xml.children.length > 0 || noEmpty ? xml.toString() : '';\n};\n\nfunction serialize(xml, value, shape) {\n  switch (shape.type) {\n    case 'structure':\n      return serializeStructure(xml, value, shape);\n\n    case 'map':\n      return serializeMap(xml, value, shape);\n\n    case 'list':\n      return serializeList(xml, value, shape);\n\n    default:\n      return serializeScalar(xml, value, shape);\n  }\n}\n\nfunction serializeStructure(xml, params, shape) {\n  util.arrayEach(shape.memberNames, function (memberName) {\n    var memberShape = shape.members[memberName];\n    if (memberShape.location !== 'body') return;\n    var value = params[memberName];\n    var name = memberShape.name;\n\n    if (value !== undefined && value !== null) {\n      if (memberShape.isXmlAttribute) {\n        xml.addAttribute(name, value);\n      } else if (memberShape.flattened) {\n        serialize(xml, value, memberShape);\n      } else {\n        var element = new XmlNode(name);\n        xml.addChildNode(element);\n        applyNamespaces(element, memberShape);\n        serialize(element, value, memberShape);\n      }\n    }\n  });\n}\n\nfunction serializeMap(xml, map, shape) {\n  var xmlKey = shape.key.name || 'key';\n  var xmlValue = shape.value.name || 'value';\n  util.each(map, function (key, value) {\n    var entry = new XmlNode(shape.flattened ? shape.name : 'entry');\n    xml.addChildNode(entry);\n    var entryKey = new XmlNode(xmlKey);\n    var entryValue = new XmlNode(xmlValue);\n    entry.addChildNode(entryKey);\n    entry.addChildNode(entryValue);\n    serialize(entryKey, key, shape.key);\n    serialize(entryValue, value, shape.value);\n  });\n}\n\nfunction serializeList(xml, list, shape) {\n  if (shape.flattened) {\n    util.arrayEach(list, function (value) {\n      var name = shape.member.name || shape.name;\n      var element = new XmlNode(name);\n      xml.addChildNode(element);\n      serialize(element, value, shape.member);\n    });\n  } else {\n    util.arrayEach(list, function (value) {\n      var name = shape.member.name || 'member';\n      var element = new XmlNode(name);\n      xml.addChildNode(element);\n      serialize(element, value, shape.member);\n    });\n  }\n}\n\nfunction serializeScalar(xml, value, shape) {\n  xml.addChildNode(new XmlText(shape.toWireFormat(value)));\n}\n\nfunction applyNamespaces(xml, shape, isRoot) {\n  var uri,\n      prefix = 'xmlns';\n\n  if (shape.xmlNamespaceUri) {\n    uri = shape.xmlNamespaceUri;\n    if (shape.xmlNamespacePrefix) prefix += ':' + shape.xmlNamespacePrefix;\n  } else if (isRoot && shape.api.xmlNamespaceUri) {\n    uri = shape.api.xmlNamespaceUri;\n  }\n\n  if (uri) xml.addAttribute(prefix, uri);\n}\n/**\n * @api private\n */\n\n\nmodule.exports = XmlBuilder;","var AWS = require('../core');\n\nvar inherit = AWS.util.inherit;\n/**\n * @api private\n */\n\nAWS.Signers.S3 = inherit(AWS.Signers.RequestSigner, {\n  /**\n   * When building the stringToSign, these sub resource params should be\n   * part of the canonical resource string with their NON-decoded values\n   */\n  subResources: {\n    'acl': 1,\n    'accelerate': 1,\n    'analytics': 1,\n    'cors': 1,\n    'lifecycle': 1,\n    'delete': 1,\n    'inventory': 1,\n    'location': 1,\n    'logging': 1,\n    'metrics': 1,\n    'notification': 1,\n    'partNumber': 1,\n    'policy': 1,\n    'requestPayment': 1,\n    'replication': 1,\n    'restore': 1,\n    'tagging': 1,\n    'torrent': 1,\n    'uploadId': 1,\n    'uploads': 1,\n    'versionId': 1,\n    'versioning': 1,\n    'versions': 1,\n    'website': 1\n  },\n  // when building the stringToSign, these querystring params should be\n  // part of the canonical resource string with their NON-encoded values\n  responseHeaders: {\n    'response-content-type': 1,\n    'response-content-language': 1,\n    'response-expires': 1,\n    'response-cache-control': 1,\n    'response-content-disposition': 1,\n    'response-content-encoding': 1\n  },\n  addAuthorization: function addAuthorization(credentials, date) {\n    if (!this.request.headers['presigned-expires']) {\n      this.request.headers['X-Amz-Date'] = AWS.util.date.rfc822(date);\n    }\n\n    if (credentials.sessionToken) {\n      // presigned URLs require this header to be lowercased\n      this.request.headers['x-amz-security-token'] = credentials.sessionToken;\n    }\n\n    var signature = this.sign(credentials.secretAccessKey, this.stringToSign());\n    var auth = 'AWS ' + credentials.accessKeyId + ':' + signature;\n    this.request.headers['Authorization'] = auth;\n  },\n  stringToSign: function stringToSign() {\n    var r = this.request;\n    var parts = [];\n    parts.push(r.method);\n    parts.push(r.headers['Content-MD5'] || '');\n    parts.push(r.headers['Content-Type'] || ''); // This is the \"Date\" header, but we use X-Amz-Date.\n    // The S3 signing mechanism requires us to pass an empty\n    // string for this Date header regardless.\n\n    parts.push(r.headers['presigned-expires'] || '');\n    var headers = this.canonicalizedAmzHeaders();\n    if (headers) parts.push(headers);\n    parts.push(this.canonicalizedResource());\n    return parts.join('\\n');\n  },\n  canonicalizedAmzHeaders: function canonicalizedAmzHeaders() {\n    var amzHeaders = [];\n    AWS.util.each(this.request.headers, function (name) {\n      if (name.match(/^x-amz-/i)) amzHeaders.push(name);\n    });\n    amzHeaders.sort(function (a, b) {\n      return a.toLowerCase() < b.toLowerCase() ? -1 : 1;\n    });\n    var parts = [];\n    AWS.util.arrayEach.call(this, amzHeaders, function (name) {\n      parts.push(name.toLowerCase() + ':' + String(this.request.headers[name]));\n    });\n    return parts.join('\\n');\n  },\n  canonicalizedResource: function canonicalizedResource() {\n    var r = this.request;\n    var parts = r.path.split('?');\n    var path = parts[0];\n    var querystring = parts[1];\n    var resource = '';\n    if (r.virtualHostedBucket) resource += '/' + r.virtualHostedBucket;\n    resource += path;\n\n    if (querystring) {\n      // collect a list of sub resources and query params that need to be signed\n      var resources = [];\n      AWS.util.arrayEach.call(this, querystring.split('&'), function (param) {\n        var name = param.split('=')[0];\n        var value = param.split('=')[1];\n\n        if (this.subResources[name] || this.responseHeaders[name]) {\n          var subresource = {\n            name: name\n          };\n\n          if (value !== undefined) {\n            if (this.subResources[name]) {\n              subresource.value = value;\n            } else {\n              subresource.value = decodeURIComponent(value);\n            }\n          }\n\n          resources.push(subresource);\n        }\n      });\n      resources.sort(function (a, b) {\n        return a.name < b.name ? -1 : 1;\n      });\n\n      if (resources.length) {\n        querystring = [];\n        AWS.util.arrayEach(resources, function (res) {\n          if (res.value === undefined) {\n            querystring.push(res.name);\n          } else {\n            querystring.push(res.name + '=' + res.value);\n          }\n        });\n        resource += '?' + querystring.join('&');\n      }\n    }\n\n    return resource;\n  },\n  sign: function sign(secret, string) {\n    return AWS.util.crypto.hmac(secret, string, 'base64', 'sha1');\n  }\n});\n/**\n * @api private\n */\n\nmodule.exports = AWS.Signers.S3;","require(\"core-js/modules/es.string.trim-start.js\");\n\n(function (exports) {\n  \"use strict\";\n\n  function isArray(obj) {\n    if (obj !== null) {\n      return Object.prototype.toString.call(obj) === \"[object Array]\";\n    } else {\n      return false;\n    }\n  }\n\n  function isObject(obj) {\n    if (obj !== null) {\n      return Object.prototype.toString.call(obj) === \"[object Object]\";\n    } else {\n      return false;\n    }\n  }\n\n  function strictDeepEqual(first, second) {\n    // Check the scalar case first.\n    if (first === second) {\n      return true;\n    } // Check if they are the same type.\n\n\n    var firstType = Object.prototype.toString.call(first);\n\n    if (firstType !== Object.prototype.toString.call(second)) {\n      return false;\n    } // We know that first and second have the same type so we can just check the\n    // first type from now on.\n\n\n    if (isArray(first) === true) {\n      // Short circuit if they're not the same length;\n      if (first.length !== second.length) {\n        return false;\n      }\n\n      for (var i = 0; i < first.length; i++) {\n        if (strictDeepEqual(first[i], second[i]) === false) {\n          return false;\n        }\n      }\n\n      return true;\n    }\n\n    if (isObject(first) === true) {\n      // An object is equal if it has the same key/value pairs.\n      var keysSeen = {};\n\n      for (var key in first) {\n        if (hasOwnProperty.call(first, key)) {\n          if (strictDeepEqual(first[key], second[key]) === false) {\n            return false;\n          }\n\n          keysSeen[key] = true;\n        }\n      } // Now check that there aren't any keys in second that weren't\n      // in first.\n\n\n      for (var key2 in second) {\n        if (hasOwnProperty.call(second, key2)) {\n          if (keysSeen[key2] !== true) {\n            return false;\n          }\n        }\n      }\n\n      return true;\n    }\n\n    return false;\n  }\n\n  function isFalse(obj) {\n    // From the spec:\n    // A false value corresponds to the following values:\n    // Empty list\n    // Empty object\n    // Empty string\n    // False boolean\n    // null value\n    // First check the scalar values.\n    if (obj === \"\" || obj === false || obj === null) {\n      return true;\n    } else if (isArray(obj) && obj.length === 0) {\n      // Check for an empty array.\n      return true;\n    } else if (isObject(obj)) {\n      // Check for an empty object.\n      for (var key in obj) {\n        // If there are any keys, then\n        // the object is not empty so the object\n        // is not false.\n        if (obj.hasOwnProperty(key)) {\n          return false;\n        }\n      }\n\n      return true;\n    } else {\n      return false;\n    }\n  }\n\n  function objValues(obj) {\n    var keys = Object.keys(obj);\n    var values = [];\n\n    for (var i = 0; i < keys.length; i++) {\n      values.push(obj[keys[i]]);\n    }\n\n    return values;\n  }\n\n  function merge(a, b) {\n    var merged = {};\n\n    for (var key in a) {\n      merged[key] = a[key];\n    }\n\n    for (var key2 in b) {\n      merged[key2] = b[key2];\n    }\n\n    return merged;\n  }\n\n  var trimLeft;\n\n  if (typeof String.prototype.trimLeft === \"function\") {\n    trimLeft = function trimLeft(str) {\n      return str.trimLeft();\n    };\n  } else {\n    trimLeft = function trimLeft(str) {\n      return str.match(/^\\s*(.*)/)[1];\n    };\n  } // Type constants used to define functions.\n\n\n  var TYPE_NUMBER = 0;\n  var TYPE_ANY = 1;\n  var TYPE_STRING = 2;\n  var TYPE_ARRAY = 3;\n  var TYPE_OBJECT = 4;\n  var TYPE_BOOLEAN = 5;\n  var TYPE_EXPREF = 6;\n  var TYPE_NULL = 7;\n  var TYPE_ARRAY_NUMBER = 8;\n  var TYPE_ARRAY_STRING = 9;\n  var TOK_EOF = \"EOF\";\n  var TOK_UNQUOTEDIDENTIFIER = \"UnquotedIdentifier\";\n  var TOK_QUOTEDIDENTIFIER = \"QuotedIdentifier\";\n  var TOK_RBRACKET = \"Rbracket\";\n  var TOK_RPAREN = \"Rparen\";\n  var TOK_COMMA = \"Comma\";\n  var TOK_COLON = \"Colon\";\n  var TOK_RBRACE = \"Rbrace\";\n  var TOK_NUMBER = \"Number\";\n  var TOK_CURRENT = \"Current\";\n  var TOK_EXPREF = \"Expref\";\n  var TOK_PIPE = \"Pipe\";\n  var TOK_OR = \"Or\";\n  var TOK_AND = \"And\";\n  var TOK_EQ = \"EQ\";\n  var TOK_GT = \"GT\";\n  var TOK_LT = \"LT\";\n  var TOK_GTE = \"GTE\";\n  var TOK_LTE = \"LTE\";\n  var TOK_NE = \"NE\";\n  var TOK_FLATTEN = \"Flatten\";\n  var TOK_STAR = \"Star\";\n  var TOK_FILTER = \"Filter\";\n  var TOK_DOT = \"Dot\";\n  var TOK_NOT = \"Not\";\n  var TOK_LBRACE = \"Lbrace\";\n  var TOK_LBRACKET = \"Lbracket\";\n  var TOK_LPAREN = \"Lparen\";\n  var TOK_LITERAL = \"Literal\"; // The \"&\", \"[\", \"<\", \">\" tokens\n  // are not in basicToken because\n  // there are two token variants\n  // (\"&&\", \"[?\", \"<=\", \">=\").  This is specially handled\n  // below.\n\n  var basicTokens = {\n    \".\": TOK_DOT,\n    \"*\": TOK_STAR,\n    \",\": TOK_COMMA,\n    \":\": TOK_COLON,\n    \"{\": TOK_LBRACE,\n    \"}\": TOK_RBRACE,\n    \"]\": TOK_RBRACKET,\n    \"(\": TOK_LPAREN,\n    \")\": TOK_RPAREN,\n    \"@\": TOK_CURRENT\n  };\n  var operatorStartToken = {\n    \"<\": true,\n    \">\": true,\n    \"=\": true,\n    \"!\": true\n  };\n  var skipChars = {\n    \" \": true,\n    \"\\t\": true,\n    \"\\n\": true\n  };\n\n  function isAlpha(ch) {\n    return ch >= \"a\" && ch <= \"z\" || ch >= \"A\" && ch <= \"Z\" || ch === \"_\";\n  }\n\n  function isNum(ch) {\n    return ch >= \"0\" && ch <= \"9\" || ch === \"-\";\n  }\n\n  function isAlphaNum(ch) {\n    return ch >= \"a\" && ch <= \"z\" || ch >= \"A\" && ch <= \"Z\" || ch >= \"0\" && ch <= \"9\" || ch === \"_\";\n  }\n\n  function Lexer() {}\n\n  Lexer.prototype = {\n    tokenize: function tokenize(stream) {\n      var tokens = [];\n      this._current = 0;\n      var start;\n      var identifier;\n      var token;\n\n      while (this._current < stream.length) {\n        if (isAlpha(stream[this._current])) {\n          start = this._current;\n          identifier = this._consumeUnquotedIdentifier(stream);\n          tokens.push({\n            type: TOK_UNQUOTEDIDENTIFIER,\n            value: identifier,\n            start: start\n          });\n        } else if (basicTokens[stream[this._current]] !== undefined) {\n          tokens.push({\n            type: basicTokens[stream[this._current]],\n            value: stream[this._current],\n            start: this._current\n          });\n          this._current++;\n        } else if (isNum(stream[this._current])) {\n          token = this._consumeNumber(stream);\n          tokens.push(token);\n        } else if (stream[this._current] === \"[\") {\n          // No need to increment this._current.  This happens\n          // in _consumeLBracket\n          token = this._consumeLBracket(stream);\n          tokens.push(token);\n        } else if (stream[this._current] === \"\\\"\") {\n          start = this._current;\n          identifier = this._consumeQuotedIdentifier(stream);\n          tokens.push({\n            type: TOK_QUOTEDIDENTIFIER,\n            value: identifier,\n            start: start\n          });\n        } else if (stream[this._current] === \"'\") {\n          start = this._current;\n          identifier = this._consumeRawStringLiteral(stream);\n          tokens.push({\n            type: TOK_LITERAL,\n            value: identifier,\n            start: start\n          });\n        } else if (stream[this._current] === \"`\") {\n          start = this._current;\n\n          var literal = this._consumeLiteral(stream);\n\n          tokens.push({\n            type: TOK_LITERAL,\n            value: literal,\n            start: start\n          });\n        } else if (operatorStartToken[stream[this._current]] !== undefined) {\n          tokens.push(this._consumeOperator(stream));\n        } else if (skipChars[stream[this._current]] !== undefined) {\n          // Ignore whitespace.\n          this._current++;\n        } else if (stream[this._current] === \"&\") {\n          start = this._current;\n          this._current++;\n\n          if (stream[this._current] === \"&\") {\n            this._current++;\n            tokens.push({\n              type: TOK_AND,\n              value: \"&&\",\n              start: start\n            });\n          } else {\n            tokens.push({\n              type: TOK_EXPREF,\n              value: \"&\",\n              start: start\n            });\n          }\n        } else if (stream[this._current] === \"|\") {\n          start = this._current;\n          this._current++;\n\n          if (stream[this._current] === \"|\") {\n            this._current++;\n            tokens.push({\n              type: TOK_OR,\n              value: \"||\",\n              start: start\n            });\n          } else {\n            tokens.push({\n              type: TOK_PIPE,\n              value: \"|\",\n              start: start\n            });\n          }\n        } else {\n          var error = new Error(\"Unknown character:\" + stream[this._current]);\n          error.name = \"LexerError\";\n          throw error;\n        }\n      }\n\n      return tokens;\n    },\n    _consumeUnquotedIdentifier: function _consumeUnquotedIdentifier(stream) {\n      var start = this._current;\n      this._current++;\n\n      while (this._current < stream.length && isAlphaNum(stream[this._current])) {\n        this._current++;\n      }\n\n      return stream.slice(start, this._current);\n    },\n    _consumeQuotedIdentifier: function _consumeQuotedIdentifier(stream) {\n      var start = this._current;\n      this._current++;\n      var maxLength = stream.length;\n\n      while (stream[this._current] !== \"\\\"\" && this._current < maxLength) {\n        // You can escape a double quote and you can escape an escape.\n        var current = this._current;\n\n        if (stream[current] === \"\\\\\" && (stream[current + 1] === \"\\\\\" || stream[current + 1] === \"\\\"\")) {\n          current += 2;\n        } else {\n          current++;\n        }\n\n        this._current = current;\n      }\n\n      this._current++;\n      return JSON.parse(stream.slice(start, this._current));\n    },\n    _consumeRawStringLiteral: function _consumeRawStringLiteral(stream) {\n      var start = this._current;\n      this._current++;\n      var maxLength = stream.length;\n\n      while (stream[this._current] !== \"'\" && this._current < maxLength) {\n        // You can escape a single quote and you can escape an escape.\n        var current = this._current;\n\n        if (stream[current] === \"\\\\\" && (stream[current + 1] === \"\\\\\" || stream[current + 1] === \"'\")) {\n          current += 2;\n        } else {\n          current++;\n        }\n\n        this._current = current;\n      }\n\n      this._current++;\n      var literal = stream.slice(start + 1, this._current - 1);\n      return literal.replace(\"\\\\'\", \"'\");\n    },\n    _consumeNumber: function _consumeNumber(stream) {\n      var start = this._current;\n      this._current++;\n      var maxLength = stream.length;\n\n      while (isNum(stream[this._current]) && this._current < maxLength) {\n        this._current++;\n      }\n\n      var value = parseInt(stream.slice(start, this._current));\n      return {\n        type: TOK_NUMBER,\n        value: value,\n        start: start\n      };\n    },\n    _consumeLBracket: function _consumeLBracket(stream) {\n      var start = this._current;\n      this._current++;\n\n      if (stream[this._current] === \"?\") {\n        this._current++;\n        return {\n          type: TOK_FILTER,\n          value: \"[?\",\n          start: start\n        };\n      } else if (stream[this._current] === \"]\") {\n        this._current++;\n        return {\n          type: TOK_FLATTEN,\n          value: \"[]\",\n          start: start\n        };\n      } else {\n        return {\n          type: TOK_LBRACKET,\n          value: \"[\",\n          start: start\n        };\n      }\n    },\n    _consumeOperator: function _consumeOperator(stream) {\n      var start = this._current;\n      var startingChar = stream[start];\n      this._current++;\n\n      if (startingChar === \"!\") {\n        if (stream[this._current] === \"=\") {\n          this._current++;\n          return {\n            type: TOK_NE,\n            value: \"!=\",\n            start: start\n          };\n        } else {\n          return {\n            type: TOK_NOT,\n            value: \"!\",\n            start: start\n          };\n        }\n      } else if (startingChar === \"<\") {\n        if (stream[this._current] === \"=\") {\n          this._current++;\n          return {\n            type: TOK_LTE,\n            value: \"<=\",\n            start: start\n          };\n        } else {\n          return {\n            type: TOK_LT,\n            value: \"<\",\n            start: start\n          };\n        }\n      } else if (startingChar === \">\") {\n        if (stream[this._current] === \"=\") {\n          this._current++;\n          return {\n            type: TOK_GTE,\n            value: \">=\",\n            start: start\n          };\n        } else {\n          return {\n            type: TOK_GT,\n            value: \">\",\n            start: start\n          };\n        }\n      } else if (startingChar === \"=\") {\n        if (stream[this._current] === \"=\") {\n          this._current++;\n          return {\n            type: TOK_EQ,\n            value: \"==\",\n            start: start\n          };\n        }\n      }\n    },\n    _consumeLiteral: function _consumeLiteral(stream) {\n      this._current++;\n      var start = this._current;\n      var maxLength = stream.length;\n      var literal;\n\n      while (stream[this._current] !== \"`\" && this._current < maxLength) {\n        // You can escape a literal char or you can escape the escape.\n        var current = this._current;\n\n        if (stream[current] === \"\\\\\" && (stream[current + 1] === \"\\\\\" || stream[current + 1] === \"`\")) {\n          current += 2;\n        } else {\n          current++;\n        }\n\n        this._current = current;\n      }\n\n      var literalString = trimLeft(stream.slice(start, this._current));\n      literalString = literalString.replace(\"\\\\`\", \"`\");\n\n      if (this._looksLikeJSON(literalString)) {\n        literal = JSON.parse(literalString);\n      } else {\n        // Try to JSON parse it as \"<literal>\"\n        literal = JSON.parse(\"\\\"\" + literalString + \"\\\"\");\n      } // +1 gets us to the ending \"`\", +1 to move on to the next char.\n\n\n      this._current++;\n      return literal;\n    },\n    _looksLikeJSON: function _looksLikeJSON(literalString) {\n      var startingChars = \"[{\\\"\";\n      var jsonLiterals = [\"true\", \"false\", \"null\"];\n      var numberLooking = \"-0123456789\";\n\n      if (literalString === \"\") {\n        return false;\n      } else if (startingChars.indexOf(literalString[0]) >= 0) {\n        return true;\n      } else if (jsonLiterals.indexOf(literalString) >= 0) {\n        return true;\n      } else if (numberLooking.indexOf(literalString[0]) >= 0) {\n        try {\n          JSON.parse(literalString);\n          return true;\n        } catch (ex) {\n          return false;\n        }\n      } else {\n        return false;\n      }\n    }\n  };\n  var bindingPower = {};\n  bindingPower[TOK_EOF] = 0;\n  bindingPower[TOK_UNQUOTEDIDENTIFIER] = 0;\n  bindingPower[TOK_QUOTEDIDENTIFIER] = 0;\n  bindingPower[TOK_RBRACKET] = 0;\n  bindingPower[TOK_RPAREN] = 0;\n  bindingPower[TOK_COMMA] = 0;\n  bindingPower[TOK_RBRACE] = 0;\n  bindingPower[TOK_NUMBER] = 0;\n  bindingPower[TOK_CURRENT] = 0;\n  bindingPower[TOK_EXPREF] = 0;\n  bindingPower[TOK_PIPE] = 1;\n  bindingPower[TOK_OR] = 2;\n  bindingPower[TOK_AND] = 3;\n  bindingPower[TOK_EQ] = 5;\n  bindingPower[TOK_GT] = 5;\n  bindingPower[TOK_LT] = 5;\n  bindingPower[TOK_GTE] = 5;\n  bindingPower[TOK_LTE] = 5;\n  bindingPower[TOK_NE] = 5;\n  bindingPower[TOK_FLATTEN] = 9;\n  bindingPower[TOK_STAR] = 20;\n  bindingPower[TOK_FILTER] = 21;\n  bindingPower[TOK_DOT] = 40;\n  bindingPower[TOK_NOT] = 45;\n  bindingPower[TOK_LBRACE] = 50;\n  bindingPower[TOK_LBRACKET] = 55;\n  bindingPower[TOK_LPAREN] = 60;\n\n  function Parser() {}\n\n  Parser.prototype = {\n    parse: function parse(expression) {\n      this._loadTokens(expression);\n\n      this.index = 0;\n      var ast = this.expression(0);\n\n      if (this._lookahead(0) !== TOK_EOF) {\n        var t = this._lookaheadToken(0);\n\n        var error = new Error(\"Unexpected token type: \" + t.type + \", value: \" + t.value);\n        error.name = \"ParserError\";\n        throw error;\n      }\n\n      return ast;\n    },\n    _loadTokens: function _loadTokens(expression) {\n      var lexer = new Lexer();\n      var tokens = lexer.tokenize(expression);\n      tokens.push({\n        type: TOK_EOF,\n        value: \"\",\n        start: expression.length\n      });\n      this.tokens = tokens;\n    },\n    expression: function expression(rbp) {\n      var leftToken = this._lookaheadToken(0);\n\n      this._advance();\n\n      var left = this.nud(leftToken);\n\n      var currentToken = this._lookahead(0);\n\n      while (rbp < bindingPower[currentToken]) {\n        this._advance();\n\n        left = this.led(currentToken, left);\n        currentToken = this._lookahead(0);\n      }\n\n      return left;\n    },\n    _lookahead: function _lookahead(number) {\n      return this.tokens[this.index + number].type;\n    },\n    _lookaheadToken: function _lookaheadToken(number) {\n      return this.tokens[this.index + number];\n    },\n    _advance: function _advance() {\n      this.index++;\n    },\n    nud: function nud(token) {\n      var left;\n      var right;\n      var expression;\n\n      switch (token.type) {\n        case TOK_LITERAL:\n          return {\n            type: \"Literal\",\n            value: token.value\n          };\n\n        case TOK_UNQUOTEDIDENTIFIER:\n          return {\n            type: \"Field\",\n            name: token.value\n          };\n\n        case TOK_QUOTEDIDENTIFIER:\n          var node = {\n            type: \"Field\",\n            name: token.value\n          };\n\n          if (this._lookahead(0) === TOK_LPAREN) {\n            throw new Error(\"Quoted identifier not allowed for function names.\");\n          } else {\n            return node;\n          }\n\n          break;\n\n        case TOK_NOT:\n          right = this.expression(bindingPower.Not);\n          return {\n            type: \"NotExpression\",\n            children: [right]\n          };\n\n        case TOK_STAR:\n          left = {\n            type: \"Identity\"\n          };\n          right = null;\n\n          if (this._lookahead(0) === TOK_RBRACKET) {\n            // This can happen in a multiselect,\n            // [a, b, *]\n            right = {\n              type: \"Identity\"\n            };\n          } else {\n            right = this._parseProjectionRHS(bindingPower.Star);\n          }\n\n          return {\n            type: \"ValueProjection\",\n            children: [left, right]\n          };\n\n        case TOK_FILTER:\n          return this.led(token.type, {\n            type: \"Identity\"\n          });\n\n        case TOK_LBRACE:\n          return this._parseMultiselectHash();\n\n        case TOK_FLATTEN:\n          left = {\n            type: TOK_FLATTEN,\n            children: [{\n              type: \"Identity\"\n            }]\n          };\n          right = this._parseProjectionRHS(bindingPower.Flatten);\n          return {\n            type: \"Projection\",\n            children: [left, right]\n          };\n\n        case TOK_LBRACKET:\n          if (this._lookahead(0) === TOK_NUMBER || this._lookahead(0) === TOK_COLON) {\n            right = this._parseIndexExpression();\n            return this._projectIfSlice({\n              type: \"Identity\"\n            }, right);\n          } else if (this._lookahead(0) === TOK_STAR && this._lookahead(1) === TOK_RBRACKET) {\n            this._advance();\n\n            this._advance();\n\n            right = this._parseProjectionRHS(bindingPower.Star);\n            return {\n              type: \"Projection\",\n              children: [{\n                type: \"Identity\"\n              }, right]\n            };\n          } else {\n            return this._parseMultiselectList();\n          }\n\n          break;\n\n        case TOK_CURRENT:\n          return {\n            type: TOK_CURRENT\n          };\n\n        case TOK_EXPREF:\n          expression = this.expression(bindingPower.Expref);\n          return {\n            type: \"ExpressionReference\",\n            children: [expression]\n          };\n\n        case TOK_LPAREN:\n          var args = [];\n\n          while (this._lookahead(0) !== TOK_RPAREN) {\n            if (this._lookahead(0) === TOK_CURRENT) {\n              expression = {\n                type: TOK_CURRENT\n              };\n\n              this._advance();\n            } else {\n              expression = this.expression(0);\n            }\n\n            args.push(expression);\n          }\n\n          this._match(TOK_RPAREN);\n\n          return args[0];\n\n        default:\n          this._errorToken(token);\n\n      }\n    },\n    led: function led(tokenName, left) {\n      var right;\n\n      switch (tokenName) {\n        case TOK_DOT:\n          var rbp = bindingPower.Dot;\n\n          if (this._lookahead(0) !== TOK_STAR) {\n            right = this._parseDotRHS(rbp);\n            return {\n              type: \"Subexpression\",\n              children: [left, right]\n            };\n          } else {\n            // Creating a projection.\n            this._advance();\n\n            right = this._parseProjectionRHS(rbp);\n            return {\n              type: \"ValueProjection\",\n              children: [left, right]\n            };\n          }\n\n          break;\n\n        case TOK_PIPE:\n          right = this.expression(bindingPower.Pipe);\n          return {\n            type: TOK_PIPE,\n            children: [left, right]\n          };\n\n        case TOK_OR:\n          right = this.expression(bindingPower.Or);\n          return {\n            type: \"OrExpression\",\n            children: [left, right]\n          };\n\n        case TOK_AND:\n          right = this.expression(bindingPower.And);\n          return {\n            type: \"AndExpression\",\n            children: [left, right]\n          };\n\n        case TOK_LPAREN:\n          var name = left.name;\n          var args = [];\n          var expression, node;\n\n          while (this._lookahead(0) !== TOK_RPAREN) {\n            if (this._lookahead(0) === TOK_CURRENT) {\n              expression = {\n                type: TOK_CURRENT\n              };\n\n              this._advance();\n            } else {\n              expression = this.expression(0);\n            }\n\n            if (this._lookahead(0) === TOK_COMMA) {\n              this._match(TOK_COMMA);\n            }\n\n            args.push(expression);\n          }\n\n          this._match(TOK_RPAREN);\n\n          node = {\n            type: \"Function\",\n            name: name,\n            children: args\n          };\n          return node;\n\n        case TOK_FILTER:\n          var condition = this.expression(0);\n\n          this._match(TOK_RBRACKET);\n\n          if (this._lookahead(0) === TOK_FLATTEN) {\n            right = {\n              type: \"Identity\"\n            };\n          } else {\n            right = this._parseProjectionRHS(bindingPower.Filter);\n          }\n\n          return {\n            type: \"FilterProjection\",\n            children: [left, right, condition]\n          };\n\n        case TOK_FLATTEN:\n          var leftNode = {\n            type: TOK_FLATTEN,\n            children: [left]\n          };\n\n          var rightNode = this._parseProjectionRHS(bindingPower.Flatten);\n\n          return {\n            type: \"Projection\",\n            children: [leftNode, rightNode]\n          };\n\n        case TOK_EQ:\n        case TOK_NE:\n        case TOK_GT:\n        case TOK_GTE:\n        case TOK_LT:\n        case TOK_LTE:\n          return this._parseComparator(left, tokenName);\n\n        case TOK_LBRACKET:\n          var token = this._lookaheadToken(0);\n\n          if (token.type === TOK_NUMBER || token.type === TOK_COLON) {\n            right = this._parseIndexExpression();\n            return this._projectIfSlice(left, right);\n          } else {\n            this._match(TOK_STAR);\n\n            this._match(TOK_RBRACKET);\n\n            right = this._parseProjectionRHS(bindingPower.Star);\n            return {\n              type: \"Projection\",\n              children: [left, right]\n            };\n          }\n\n          break;\n\n        default:\n          this._errorToken(this._lookaheadToken(0));\n\n      }\n    },\n    _match: function _match(tokenType) {\n      if (this._lookahead(0) === tokenType) {\n        this._advance();\n      } else {\n        var t = this._lookaheadToken(0);\n\n        var error = new Error(\"Expected \" + tokenType + \", got: \" + t.type);\n        error.name = \"ParserError\";\n        throw error;\n      }\n    },\n    _errorToken: function _errorToken(token) {\n      var error = new Error(\"Invalid token (\" + token.type + \"): \\\"\" + token.value + \"\\\"\");\n      error.name = \"ParserError\";\n      throw error;\n    },\n    _parseIndexExpression: function _parseIndexExpression() {\n      if (this._lookahead(0) === TOK_COLON || this._lookahead(1) === TOK_COLON) {\n        return this._parseSliceExpression();\n      } else {\n        var node = {\n          type: \"Index\",\n          value: this._lookaheadToken(0).value\n        };\n\n        this._advance();\n\n        this._match(TOK_RBRACKET);\n\n        return node;\n      }\n    },\n    _projectIfSlice: function _projectIfSlice(left, right) {\n      var indexExpr = {\n        type: \"IndexExpression\",\n        children: [left, right]\n      };\n\n      if (right.type === \"Slice\") {\n        return {\n          type: \"Projection\",\n          children: [indexExpr, this._parseProjectionRHS(bindingPower.Star)]\n        };\n      } else {\n        return indexExpr;\n      }\n    },\n    _parseSliceExpression: function _parseSliceExpression() {\n      // [start:end:step] where each part is optional, as well as the last\n      // colon.\n      var parts = [null, null, null];\n      var index = 0;\n\n      var currentToken = this._lookahead(0);\n\n      while (currentToken !== TOK_RBRACKET && index < 3) {\n        if (currentToken === TOK_COLON) {\n          index++;\n\n          this._advance();\n        } else if (currentToken === TOK_NUMBER) {\n          parts[index] = this._lookaheadToken(0).value;\n\n          this._advance();\n        } else {\n          var t = this._lookahead(0);\n\n          var error = new Error(\"Syntax error, unexpected token: \" + t.value + \"(\" + t.type + \")\");\n          error.name = \"Parsererror\";\n          throw error;\n        }\n\n        currentToken = this._lookahead(0);\n      }\n\n      this._match(TOK_RBRACKET);\n\n      return {\n        type: \"Slice\",\n        children: parts\n      };\n    },\n    _parseComparator: function _parseComparator(left, comparator) {\n      var right = this.expression(bindingPower[comparator]);\n      return {\n        type: \"Comparator\",\n        name: comparator,\n        children: [left, right]\n      };\n    },\n    _parseDotRHS: function _parseDotRHS(rbp) {\n      var lookahead = this._lookahead(0);\n\n      var exprTokens = [TOK_UNQUOTEDIDENTIFIER, TOK_QUOTEDIDENTIFIER, TOK_STAR];\n\n      if (exprTokens.indexOf(lookahead) >= 0) {\n        return this.expression(rbp);\n      } else if (lookahead === TOK_LBRACKET) {\n        this._match(TOK_LBRACKET);\n\n        return this._parseMultiselectList();\n      } else if (lookahead === TOK_LBRACE) {\n        this._match(TOK_LBRACE);\n\n        return this._parseMultiselectHash();\n      }\n    },\n    _parseProjectionRHS: function _parseProjectionRHS(rbp) {\n      var right;\n\n      if (bindingPower[this._lookahead(0)] < 10) {\n        right = {\n          type: \"Identity\"\n        };\n      } else if (this._lookahead(0) === TOK_LBRACKET) {\n        right = this.expression(rbp);\n      } else if (this._lookahead(0) === TOK_FILTER) {\n        right = this.expression(rbp);\n      } else if (this._lookahead(0) === TOK_DOT) {\n        this._match(TOK_DOT);\n\n        right = this._parseDotRHS(rbp);\n      } else {\n        var t = this._lookaheadToken(0);\n\n        var error = new Error(\"Sytanx error, unexpected token: \" + t.value + \"(\" + t.type + \")\");\n        error.name = \"ParserError\";\n        throw error;\n      }\n\n      return right;\n    },\n    _parseMultiselectList: function _parseMultiselectList() {\n      var expressions = [];\n\n      while (this._lookahead(0) !== TOK_RBRACKET) {\n        var expression = this.expression(0);\n        expressions.push(expression);\n\n        if (this._lookahead(0) === TOK_COMMA) {\n          this._match(TOK_COMMA);\n\n          if (this._lookahead(0) === TOK_RBRACKET) {\n            throw new Error(\"Unexpected token Rbracket\");\n          }\n        }\n      }\n\n      this._match(TOK_RBRACKET);\n\n      return {\n        type: \"MultiSelectList\",\n        children: expressions\n      };\n    },\n    _parseMultiselectHash: function _parseMultiselectHash() {\n      var pairs = [];\n      var identifierTypes = [TOK_UNQUOTEDIDENTIFIER, TOK_QUOTEDIDENTIFIER];\n      var keyToken, keyName, value, node;\n\n      for (;;) {\n        keyToken = this._lookaheadToken(0);\n\n        if (identifierTypes.indexOf(keyToken.type) < 0) {\n          throw new Error(\"Expecting an identifier token, got: \" + keyToken.type);\n        }\n\n        keyName = keyToken.value;\n\n        this._advance();\n\n        this._match(TOK_COLON);\n\n        value = this.expression(0);\n        node = {\n          type: \"KeyValuePair\",\n          name: keyName,\n          value: value\n        };\n        pairs.push(node);\n\n        if (this._lookahead(0) === TOK_COMMA) {\n          this._match(TOK_COMMA);\n        } else if (this._lookahead(0) === TOK_RBRACE) {\n          this._match(TOK_RBRACE);\n\n          break;\n        }\n      }\n\n      return {\n        type: \"MultiSelectHash\",\n        children: pairs\n      };\n    }\n  };\n\n  function TreeInterpreter(runtime) {\n    this.runtime = runtime;\n  }\n\n  TreeInterpreter.prototype = {\n    search: function search(node, value) {\n      return this.visit(node, value);\n    },\n    visit: function visit(node, value) {\n      var matched, current, result, first, second, field, left, right, collected, i;\n\n      switch (node.type) {\n        case \"Field\":\n          if (value === null) {\n            return null;\n          } else if (isObject(value)) {\n            field = value[node.name];\n\n            if (field === undefined) {\n              return null;\n            } else {\n              return field;\n            }\n          } else {\n            return null;\n          }\n\n          break;\n\n        case \"Subexpression\":\n          result = this.visit(node.children[0], value);\n\n          for (i = 1; i < node.children.length; i++) {\n            result = this.visit(node.children[1], result);\n\n            if (result === null) {\n              return null;\n            }\n          }\n\n          return result;\n\n        case \"IndexExpression\":\n          left = this.visit(node.children[0], value);\n          right = this.visit(node.children[1], left);\n          return right;\n\n        case \"Index\":\n          if (!isArray(value)) {\n            return null;\n          }\n\n          var index = node.value;\n\n          if (index < 0) {\n            index = value.length + index;\n          }\n\n          result = value[index];\n\n          if (result === undefined) {\n            result = null;\n          }\n\n          return result;\n\n        case \"Slice\":\n          if (!isArray(value)) {\n            return null;\n          }\n\n          var sliceParams = node.children.slice(0);\n          var computed = this.computeSliceParams(value.length, sliceParams);\n          var start = computed[0];\n          var stop = computed[1];\n          var step = computed[2];\n          result = [];\n\n          if (step > 0) {\n            for (i = start; i < stop; i += step) {\n              result.push(value[i]);\n            }\n          } else {\n            for (i = start; i > stop; i += step) {\n              result.push(value[i]);\n            }\n          }\n\n          return result;\n\n        case \"Projection\":\n          // Evaluate left child.\n          var base = this.visit(node.children[0], value);\n\n          if (!isArray(base)) {\n            return null;\n          }\n\n          collected = [];\n\n          for (i = 0; i < base.length; i++) {\n            current = this.visit(node.children[1], base[i]);\n\n            if (current !== null) {\n              collected.push(current);\n            }\n          }\n\n          return collected;\n\n        case \"ValueProjection\":\n          // Evaluate left child.\n          base = this.visit(node.children[0], value);\n\n          if (!isObject(base)) {\n            return null;\n          }\n\n          collected = [];\n          var values = objValues(base);\n\n          for (i = 0; i < values.length; i++) {\n            current = this.visit(node.children[1], values[i]);\n\n            if (current !== null) {\n              collected.push(current);\n            }\n          }\n\n          return collected;\n\n        case \"FilterProjection\":\n          base = this.visit(node.children[0], value);\n\n          if (!isArray(base)) {\n            return null;\n          }\n\n          var filtered = [];\n          var finalResults = [];\n\n          for (i = 0; i < base.length; i++) {\n            matched = this.visit(node.children[2], base[i]);\n\n            if (!isFalse(matched)) {\n              filtered.push(base[i]);\n            }\n          }\n\n          for (var j = 0; j < filtered.length; j++) {\n            current = this.visit(node.children[1], filtered[j]);\n\n            if (current !== null) {\n              finalResults.push(current);\n            }\n          }\n\n          return finalResults;\n\n        case \"Comparator\":\n          first = this.visit(node.children[0], value);\n          second = this.visit(node.children[1], value);\n\n          switch (node.name) {\n            case TOK_EQ:\n              result = strictDeepEqual(first, second);\n              break;\n\n            case TOK_NE:\n              result = !strictDeepEqual(first, second);\n              break;\n\n            case TOK_GT:\n              result = first > second;\n              break;\n\n            case TOK_GTE:\n              result = first >= second;\n              break;\n\n            case TOK_LT:\n              result = first < second;\n              break;\n\n            case TOK_LTE:\n              result = first <= second;\n              break;\n\n            default:\n              throw new Error(\"Unknown comparator: \" + node.name);\n          }\n\n          return result;\n\n        case TOK_FLATTEN:\n          var original = this.visit(node.children[0], value);\n\n          if (!isArray(original)) {\n            return null;\n          }\n\n          var merged = [];\n\n          for (i = 0; i < original.length; i++) {\n            current = original[i];\n\n            if (isArray(current)) {\n              merged.push.apply(merged, current);\n            } else {\n              merged.push(current);\n            }\n          }\n\n          return merged;\n\n        case \"Identity\":\n          return value;\n\n        case \"MultiSelectList\":\n          if (value === null) {\n            return null;\n          }\n\n          collected = [];\n\n          for (i = 0; i < node.children.length; i++) {\n            collected.push(this.visit(node.children[i], value));\n          }\n\n          return collected;\n\n        case \"MultiSelectHash\":\n          if (value === null) {\n            return null;\n          }\n\n          collected = {};\n          var child;\n\n          for (i = 0; i < node.children.length; i++) {\n            child = node.children[i];\n            collected[child.name] = this.visit(child.value, value);\n          }\n\n          return collected;\n\n        case \"OrExpression\":\n          matched = this.visit(node.children[0], value);\n\n          if (isFalse(matched)) {\n            matched = this.visit(node.children[1], value);\n          }\n\n          return matched;\n\n        case \"AndExpression\":\n          first = this.visit(node.children[0], value);\n\n          if (isFalse(first) === true) {\n            return first;\n          }\n\n          return this.visit(node.children[1], value);\n\n        case \"NotExpression\":\n          first = this.visit(node.children[0], value);\n          return isFalse(first);\n\n        case \"Literal\":\n          return node.value;\n\n        case TOK_PIPE:\n          left = this.visit(node.children[0], value);\n          return this.visit(node.children[1], left);\n\n        case TOK_CURRENT:\n          return value;\n\n        case \"Function\":\n          var resolvedArgs = [];\n\n          for (i = 0; i < node.children.length; i++) {\n            resolvedArgs.push(this.visit(node.children[i], value));\n          }\n\n          return this.runtime.callFunction(node.name, resolvedArgs);\n\n        case \"ExpressionReference\":\n          var refNode = node.children[0]; // Tag the node with a specific attribute so the type\n          // checker verify the type.\n\n          refNode.jmespathType = TOK_EXPREF;\n          return refNode;\n\n        default:\n          throw new Error(\"Unknown node type: \" + node.type);\n      }\n    },\n    computeSliceParams: function computeSliceParams(arrayLength, sliceParams) {\n      var start = sliceParams[0];\n      var stop = sliceParams[1];\n      var step = sliceParams[2];\n      var computed = [null, null, null];\n\n      if (step === null) {\n        step = 1;\n      } else if (step === 0) {\n        var error = new Error(\"Invalid slice, step cannot be 0\");\n        error.name = \"RuntimeError\";\n        throw error;\n      }\n\n      var stepValueNegative = step < 0 ? true : false;\n\n      if (start === null) {\n        start = stepValueNegative ? arrayLength - 1 : 0;\n      } else {\n        start = this.capSliceRange(arrayLength, start, step);\n      }\n\n      if (stop === null) {\n        stop = stepValueNegative ? -1 : arrayLength;\n      } else {\n        stop = this.capSliceRange(arrayLength, stop, step);\n      }\n\n      computed[0] = start;\n      computed[1] = stop;\n      computed[2] = step;\n      return computed;\n    },\n    capSliceRange: function capSliceRange(arrayLength, actualValue, step) {\n      if (actualValue < 0) {\n        actualValue += arrayLength;\n\n        if (actualValue < 0) {\n          actualValue = step < 0 ? -1 : 0;\n        }\n      } else if (actualValue >= arrayLength) {\n        actualValue = step < 0 ? arrayLength - 1 : arrayLength;\n      }\n\n      return actualValue;\n    }\n  };\n\n  function Runtime(interpreter) {\n    this._interpreter = interpreter;\n    this.functionTable = {\n      // name: [function, <signature>]\n      // The <signature> can be:\n      //\n      // {\n      //   args: [[type1, type2], [type1, type2]],\n      //   variadic: true|false\n      // }\n      //\n      // Each arg in the arg list is a list of valid types\n      // (if the function is overloaded and supports multiple\n      // types.  If the type is \"any\" then no type checking\n      // occurs on the argument.  Variadic is optional\n      // and if not provided is assumed to be false.\n      abs: {\n        _func: this._functionAbs,\n        _signature: [{\n          types: [TYPE_NUMBER]\n        }]\n      },\n      avg: {\n        _func: this._functionAvg,\n        _signature: [{\n          types: [TYPE_ARRAY_NUMBER]\n        }]\n      },\n      ceil: {\n        _func: this._functionCeil,\n        _signature: [{\n          types: [TYPE_NUMBER]\n        }]\n      },\n      contains: {\n        _func: this._functionContains,\n        _signature: [{\n          types: [TYPE_STRING, TYPE_ARRAY]\n        }, {\n          types: [TYPE_ANY]\n        }]\n      },\n      \"ends_with\": {\n        _func: this._functionEndsWith,\n        _signature: [{\n          types: [TYPE_STRING]\n        }, {\n          types: [TYPE_STRING]\n        }]\n      },\n      floor: {\n        _func: this._functionFloor,\n        _signature: [{\n          types: [TYPE_NUMBER]\n        }]\n      },\n      length: {\n        _func: this._functionLength,\n        _signature: [{\n          types: [TYPE_STRING, TYPE_ARRAY, TYPE_OBJECT]\n        }]\n      },\n      map: {\n        _func: this._functionMap,\n        _signature: [{\n          types: [TYPE_EXPREF]\n        }, {\n          types: [TYPE_ARRAY]\n        }]\n      },\n      max: {\n        _func: this._functionMax,\n        _signature: [{\n          types: [TYPE_ARRAY_NUMBER, TYPE_ARRAY_STRING]\n        }]\n      },\n      \"merge\": {\n        _func: this._functionMerge,\n        _signature: [{\n          types: [TYPE_OBJECT],\n          variadic: true\n        }]\n      },\n      \"max_by\": {\n        _func: this._functionMaxBy,\n        _signature: [{\n          types: [TYPE_ARRAY]\n        }, {\n          types: [TYPE_EXPREF]\n        }]\n      },\n      sum: {\n        _func: this._functionSum,\n        _signature: [{\n          types: [TYPE_ARRAY_NUMBER]\n        }]\n      },\n      \"starts_with\": {\n        _func: this._functionStartsWith,\n        _signature: [{\n          types: [TYPE_STRING]\n        }, {\n          types: [TYPE_STRING]\n        }]\n      },\n      min: {\n        _func: this._functionMin,\n        _signature: [{\n          types: [TYPE_ARRAY_NUMBER, TYPE_ARRAY_STRING]\n        }]\n      },\n      \"min_by\": {\n        _func: this._functionMinBy,\n        _signature: [{\n          types: [TYPE_ARRAY]\n        }, {\n          types: [TYPE_EXPREF]\n        }]\n      },\n      type: {\n        _func: this._functionType,\n        _signature: [{\n          types: [TYPE_ANY]\n        }]\n      },\n      keys: {\n        _func: this._functionKeys,\n        _signature: [{\n          types: [TYPE_OBJECT]\n        }]\n      },\n      values: {\n        _func: this._functionValues,\n        _signature: [{\n          types: [TYPE_OBJECT]\n        }]\n      },\n      sort: {\n        _func: this._functionSort,\n        _signature: [{\n          types: [TYPE_ARRAY_STRING, TYPE_ARRAY_NUMBER]\n        }]\n      },\n      \"sort_by\": {\n        _func: this._functionSortBy,\n        _signature: [{\n          types: [TYPE_ARRAY]\n        }, {\n          types: [TYPE_EXPREF]\n        }]\n      },\n      join: {\n        _func: this._functionJoin,\n        _signature: [{\n          types: [TYPE_STRING]\n        }, {\n          types: [TYPE_ARRAY_STRING]\n        }]\n      },\n      reverse: {\n        _func: this._functionReverse,\n        _signature: [{\n          types: [TYPE_STRING, TYPE_ARRAY]\n        }]\n      },\n      \"to_array\": {\n        _func: this._functionToArray,\n        _signature: [{\n          types: [TYPE_ANY]\n        }]\n      },\n      \"to_string\": {\n        _func: this._functionToString,\n        _signature: [{\n          types: [TYPE_ANY]\n        }]\n      },\n      \"to_number\": {\n        _func: this._functionToNumber,\n        _signature: [{\n          types: [TYPE_ANY]\n        }]\n      },\n      \"not_null\": {\n        _func: this._functionNotNull,\n        _signature: [{\n          types: [TYPE_ANY],\n          variadic: true\n        }]\n      }\n    };\n  }\n\n  Runtime.prototype = {\n    callFunction: function callFunction(name, resolvedArgs) {\n      var functionEntry = this.functionTable[name];\n\n      if (functionEntry === undefined) {\n        throw new Error(\"Unknown function: \" + name + \"()\");\n      }\n\n      this._validateArgs(name, resolvedArgs, functionEntry._signature);\n\n      return functionEntry._func.call(this, resolvedArgs);\n    },\n    _validateArgs: function _validateArgs(name, args, signature) {\n      // Validating the args requires validating\n      // the correct arity and the correct type of each arg.\n      // If the last argument is declared as variadic, then we need\n      // a minimum number of args to be required.  Otherwise it has to\n      // be an exact amount.\n      var pluralized;\n\n      if (signature[signature.length - 1].variadic) {\n        if (args.length < signature.length) {\n          pluralized = signature.length === 1 ? \" argument\" : \" arguments\";\n          throw new Error(\"ArgumentError: \" + name + \"() \" + \"takes at least\" + signature.length + pluralized + \" but received \" + args.length);\n        }\n      } else if (args.length !== signature.length) {\n        pluralized = signature.length === 1 ? \" argument\" : \" arguments\";\n        throw new Error(\"ArgumentError: \" + name + \"() \" + \"takes \" + signature.length + pluralized + \" but received \" + args.length);\n      }\n\n      var currentSpec;\n      var actualType;\n      var typeMatched;\n\n      for (var i = 0; i < signature.length; i++) {\n        typeMatched = false;\n        currentSpec = signature[i].types;\n        actualType = this._getTypeName(args[i]);\n\n        for (var j = 0; j < currentSpec.length; j++) {\n          if (this._typeMatches(actualType, currentSpec[j], args[i])) {\n            typeMatched = true;\n            break;\n          }\n        }\n\n        if (!typeMatched) {\n          throw new Error(\"TypeError: \" + name + \"() \" + \"expected argument \" + (i + 1) + \" to be type \" + currentSpec + \" but received type \" + actualType + \" instead.\");\n        }\n      }\n    },\n    _typeMatches: function _typeMatches(actual, expected, argValue) {\n      if (expected === TYPE_ANY) {\n        return true;\n      }\n\n      if (expected === TYPE_ARRAY_STRING || expected === TYPE_ARRAY_NUMBER || expected === TYPE_ARRAY) {\n        // The expected type can either just be array,\n        // or it can require a specific subtype (array of numbers).\n        //\n        // The simplest case is if \"array\" with no subtype is specified.\n        if (expected === TYPE_ARRAY) {\n          return actual === TYPE_ARRAY;\n        } else if (actual === TYPE_ARRAY) {\n          // Otherwise we need to check subtypes.\n          // I think this has potential to be improved.\n          var subtype;\n\n          if (expected === TYPE_ARRAY_NUMBER) {\n            subtype = TYPE_NUMBER;\n          } else if (expected === TYPE_ARRAY_STRING) {\n            subtype = TYPE_STRING;\n          }\n\n          for (var i = 0; i < argValue.length; i++) {\n            if (!this._typeMatches(this._getTypeName(argValue[i]), subtype, argValue[i])) {\n              return false;\n            }\n          }\n\n          return true;\n        }\n      } else {\n        return actual === expected;\n      }\n    },\n    _getTypeName: function _getTypeName(obj) {\n      switch (Object.prototype.toString.call(obj)) {\n        case \"[object String]\":\n          return TYPE_STRING;\n\n        case \"[object Number]\":\n          return TYPE_NUMBER;\n\n        case \"[object Array]\":\n          return TYPE_ARRAY;\n\n        case \"[object Boolean]\":\n          return TYPE_BOOLEAN;\n\n        case \"[object Null]\":\n          return TYPE_NULL;\n\n        case \"[object Object]\":\n          // Check if it's an expref.  If it has, it's been\n          // tagged with a jmespathType attr of 'Expref';\n          if (obj.jmespathType === TOK_EXPREF) {\n            return TYPE_EXPREF;\n          } else {\n            return TYPE_OBJECT;\n          }\n\n      }\n    },\n    _functionStartsWith: function _functionStartsWith(resolvedArgs) {\n      return resolvedArgs[0].lastIndexOf(resolvedArgs[1]) === 0;\n    },\n    _functionEndsWith: function _functionEndsWith(resolvedArgs) {\n      var searchStr = resolvedArgs[0];\n      var suffix = resolvedArgs[1];\n      return searchStr.indexOf(suffix, searchStr.length - suffix.length) !== -1;\n    },\n    _functionReverse: function _functionReverse(resolvedArgs) {\n      var typeName = this._getTypeName(resolvedArgs[0]);\n\n      if (typeName === TYPE_STRING) {\n        var originalStr = resolvedArgs[0];\n        var reversedStr = \"\";\n\n        for (var i = originalStr.length - 1; i >= 0; i--) {\n          reversedStr += originalStr[i];\n        }\n\n        return reversedStr;\n      } else {\n        var reversedArray = resolvedArgs[0].slice(0);\n        reversedArray.reverse();\n        return reversedArray;\n      }\n    },\n    _functionAbs: function _functionAbs(resolvedArgs) {\n      return Math.abs(resolvedArgs[0]);\n    },\n    _functionCeil: function _functionCeil(resolvedArgs) {\n      return Math.ceil(resolvedArgs[0]);\n    },\n    _functionAvg: function _functionAvg(resolvedArgs) {\n      var sum = 0;\n      var inputArray = resolvedArgs[0];\n\n      for (var i = 0; i < inputArray.length; i++) {\n        sum += inputArray[i];\n      }\n\n      return sum / inputArray.length;\n    },\n    _functionContains: function _functionContains(resolvedArgs) {\n      return resolvedArgs[0].indexOf(resolvedArgs[1]) >= 0;\n    },\n    _functionFloor: function _functionFloor(resolvedArgs) {\n      return Math.floor(resolvedArgs[0]);\n    },\n    _functionLength: function _functionLength(resolvedArgs) {\n      if (!isObject(resolvedArgs[0])) {\n        return resolvedArgs[0].length;\n      } else {\n        // As far as I can tell, there's no way to get the length\n        // of an object without O(n) iteration through the object.\n        return Object.keys(resolvedArgs[0]).length;\n      }\n    },\n    _functionMap: function _functionMap(resolvedArgs) {\n      var mapped = [];\n      var interpreter = this._interpreter;\n      var exprefNode = resolvedArgs[0];\n      var elements = resolvedArgs[1];\n\n      for (var i = 0; i < elements.length; i++) {\n        mapped.push(interpreter.visit(exprefNode, elements[i]));\n      }\n\n      return mapped;\n    },\n    _functionMerge: function _functionMerge(resolvedArgs) {\n      var merged = {};\n\n      for (var i = 0; i < resolvedArgs.length; i++) {\n        var current = resolvedArgs[i];\n\n        for (var key in current) {\n          merged[key] = current[key];\n        }\n      }\n\n      return merged;\n    },\n    _functionMax: function _functionMax(resolvedArgs) {\n      if (resolvedArgs[0].length > 0) {\n        var typeName = this._getTypeName(resolvedArgs[0][0]);\n\n        if (typeName === TYPE_NUMBER) {\n          return Math.max.apply(Math, resolvedArgs[0]);\n        } else {\n          var elements = resolvedArgs[0];\n          var maxElement = elements[0];\n\n          for (var i = 1; i < elements.length; i++) {\n            if (maxElement.localeCompare(elements[i]) < 0) {\n              maxElement = elements[i];\n            }\n          }\n\n          return maxElement;\n        }\n      } else {\n        return null;\n      }\n    },\n    _functionMin: function _functionMin(resolvedArgs) {\n      if (resolvedArgs[0].length > 0) {\n        var typeName = this._getTypeName(resolvedArgs[0][0]);\n\n        if (typeName === TYPE_NUMBER) {\n          return Math.min.apply(Math, resolvedArgs[0]);\n        } else {\n          var elements = resolvedArgs[0];\n          var minElement = elements[0];\n\n          for (var i = 1; i < elements.length; i++) {\n            if (elements[i].localeCompare(minElement) < 0) {\n              minElement = elements[i];\n            }\n          }\n\n          return minElement;\n        }\n      } else {\n        return null;\n      }\n    },\n    _functionSum: function _functionSum(resolvedArgs) {\n      var sum = 0;\n      var listToSum = resolvedArgs[0];\n\n      for (var i = 0; i < listToSum.length; i++) {\n        sum += listToSum[i];\n      }\n\n      return sum;\n    },\n    _functionType: function _functionType(resolvedArgs) {\n      switch (this._getTypeName(resolvedArgs[0])) {\n        case TYPE_NUMBER:\n          return \"number\";\n\n        case TYPE_STRING:\n          return \"string\";\n\n        case TYPE_ARRAY:\n          return \"array\";\n\n        case TYPE_OBJECT:\n          return \"object\";\n\n        case TYPE_BOOLEAN:\n          return \"boolean\";\n\n        case TYPE_EXPREF:\n          return \"expref\";\n\n        case TYPE_NULL:\n          return \"null\";\n      }\n    },\n    _functionKeys: function _functionKeys(resolvedArgs) {\n      return Object.keys(resolvedArgs[0]);\n    },\n    _functionValues: function _functionValues(resolvedArgs) {\n      var obj = resolvedArgs[0];\n      var keys = Object.keys(obj);\n      var values = [];\n\n      for (var i = 0; i < keys.length; i++) {\n        values.push(obj[keys[i]]);\n      }\n\n      return values;\n    },\n    _functionJoin: function _functionJoin(resolvedArgs) {\n      var joinChar = resolvedArgs[0];\n      var listJoin = resolvedArgs[1];\n      return listJoin.join(joinChar);\n    },\n    _functionToArray: function _functionToArray(resolvedArgs) {\n      if (this._getTypeName(resolvedArgs[0]) === TYPE_ARRAY) {\n        return resolvedArgs[0];\n      } else {\n        return [resolvedArgs[0]];\n      }\n    },\n    _functionToString: function _functionToString(resolvedArgs) {\n      if (this._getTypeName(resolvedArgs[0]) === TYPE_STRING) {\n        return resolvedArgs[0];\n      } else {\n        return JSON.stringify(resolvedArgs[0]);\n      }\n    },\n    _functionToNumber: function _functionToNumber(resolvedArgs) {\n      var typeName = this._getTypeName(resolvedArgs[0]);\n\n      var convertedValue;\n\n      if (typeName === TYPE_NUMBER) {\n        return resolvedArgs[0];\n      } else if (typeName === TYPE_STRING) {\n        convertedValue = +resolvedArgs[0];\n\n        if (!isNaN(convertedValue)) {\n          return convertedValue;\n        }\n      }\n\n      return null;\n    },\n    _functionNotNull: function _functionNotNull(resolvedArgs) {\n      for (var i = 0; i < resolvedArgs.length; i++) {\n        if (this._getTypeName(resolvedArgs[i]) !== TYPE_NULL) {\n          return resolvedArgs[i];\n        }\n      }\n\n      return null;\n    },\n    _functionSort: function _functionSort(resolvedArgs) {\n      var sortedArray = resolvedArgs[0].slice(0);\n      sortedArray.sort();\n      return sortedArray;\n    },\n    _functionSortBy: function _functionSortBy(resolvedArgs) {\n      var sortedArray = resolvedArgs[0].slice(0);\n\n      if (sortedArray.length === 0) {\n        return sortedArray;\n      }\n\n      var interpreter = this._interpreter;\n      var exprefNode = resolvedArgs[1];\n\n      var requiredType = this._getTypeName(interpreter.visit(exprefNode, sortedArray[0]));\n\n      if ([TYPE_NUMBER, TYPE_STRING].indexOf(requiredType) < 0) {\n        throw new Error(\"TypeError\");\n      }\n\n      var that = this; // In order to get a stable sort out of an unstable\n      // sort algorithm, we decorate/sort/undecorate (DSU)\n      // by creating a new list of [index, element] pairs.\n      // In the cmp function, if the evaluated elements are\n      // equal, then the index will be used as the tiebreaker.\n      // After the decorated list has been sorted, it will be\n      // undecorated to extract the original elements.\n\n      var decorated = [];\n\n      for (var i = 0; i < sortedArray.length; i++) {\n        decorated.push([i, sortedArray[i]]);\n      }\n\n      decorated.sort(function (a, b) {\n        var exprA = interpreter.visit(exprefNode, a[1]);\n        var exprB = interpreter.visit(exprefNode, b[1]);\n\n        if (that._getTypeName(exprA) !== requiredType) {\n          throw new Error(\"TypeError: expected \" + requiredType + \", received \" + that._getTypeName(exprA));\n        } else if (that._getTypeName(exprB) !== requiredType) {\n          throw new Error(\"TypeError: expected \" + requiredType + \", received \" + that._getTypeName(exprB));\n        }\n\n        if (exprA > exprB) {\n          return 1;\n        } else if (exprA < exprB) {\n          return -1;\n        } else {\n          // If they're equal compare the items by their\n          // order to maintain relative order of equal keys\n          // (i.e. to get a stable sort).\n          return a[0] - b[0];\n        }\n      }); // Undecorate: extract out the original list elements.\n\n      for (var j = 0; j < decorated.length; j++) {\n        sortedArray[j] = decorated[j][1];\n      }\n\n      return sortedArray;\n    },\n    _functionMaxBy: function _functionMaxBy(resolvedArgs) {\n      var exprefNode = resolvedArgs[1];\n      var resolvedArray = resolvedArgs[0];\n      var keyFunction = this.createKeyFunction(exprefNode, [TYPE_NUMBER, TYPE_STRING]);\n      var maxNumber = -Infinity;\n      var maxRecord;\n      var current;\n\n      for (var i = 0; i < resolvedArray.length; i++) {\n        current = keyFunction(resolvedArray[i]);\n\n        if (current > maxNumber) {\n          maxNumber = current;\n          maxRecord = resolvedArray[i];\n        }\n      }\n\n      return maxRecord;\n    },\n    _functionMinBy: function _functionMinBy(resolvedArgs) {\n      var exprefNode = resolvedArgs[1];\n      var resolvedArray = resolvedArgs[0];\n      var keyFunction = this.createKeyFunction(exprefNode, [TYPE_NUMBER, TYPE_STRING]);\n      var minNumber = Infinity;\n      var minRecord;\n      var current;\n\n      for (var i = 0; i < resolvedArray.length; i++) {\n        current = keyFunction(resolvedArray[i]);\n\n        if (current < minNumber) {\n          minNumber = current;\n          minRecord = resolvedArray[i];\n        }\n      }\n\n      return minRecord;\n    },\n    createKeyFunction: function createKeyFunction(exprefNode, allowedTypes) {\n      var that = this;\n      var interpreter = this._interpreter;\n\n      var keyFunc = function keyFunc(x) {\n        var current = interpreter.visit(exprefNode, x);\n\n        if (allowedTypes.indexOf(that._getTypeName(current)) < 0) {\n          var msg = \"TypeError: expected one of \" + allowedTypes + \", received \" + that._getTypeName(current);\n\n          throw new Error(msg);\n        }\n\n        return current;\n      };\n\n      return keyFunc;\n    }\n  };\n\n  function compile(stream) {\n    var parser = new Parser();\n    var ast = parser.parse(stream);\n    return ast;\n  }\n\n  function tokenize(stream) {\n    var lexer = new Lexer();\n    return lexer.tokenize(stream);\n  }\n\n  function search(data, expression) {\n    var parser = new Parser(); // This needs to be improved.  Both the interpreter and runtime depend on\n    // each other.  The runtime needs the interpreter to support exprefs.\n    // There's likely a clean way to avoid the cyclic dependency.\n\n    var runtime = new Runtime();\n    var interpreter = new TreeInterpreter(runtime);\n    runtime._interpreter = interpreter;\n    var node = parser.parse(expression);\n    return interpreter.search(node, data);\n  }\n\n  exports.tokenize = tokenize;\n  exports.compile = compile;\n  exports.search = search;\n  exports.strictDeepEqual = strictDeepEqual;\n})(typeof exports === \"undefined\" ? this.jmespath = {} : exports);","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n'use strict';\n\nvar punycode = require('punycode');\n\nvar util = require('./util');\n\nexports.parse = urlParse;\nexports.resolve = urlResolve;\nexports.resolveObject = urlResolveObject;\nexports.format = urlFormat;\nexports.Url = Url;\n\nfunction Url() {\n  this.protocol = null;\n  this.slashes = null;\n  this.auth = null;\n  this.host = null;\n  this.port = null;\n  this.hostname = null;\n  this.hash = null;\n  this.search = null;\n  this.query = null;\n  this.pathname = null;\n  this.path = null;\n  this.href = null;\n} // Reference: RFC 3986, RFC 1808, RFC 2396\n// define these here so at least they only have to be\n// compiled once on the first module load.\n\n\nvar protocolPattern = /^([a-z0-9.+-]+:)/i,\n    portPattern = /:[0-9]*$/,\n    // Special case for a simple path URL\nsimplePathPattern = /^(\\/\\/?(?!\\/)[^\\?\\s]*)(\\?[^\\s]*)?$/,\n    // RFC 2396: characters reserved for delimiting URLs.\n// We actually just auto-escape these.\ndelims = ['<', '>', '\"', '`', ' ', '\\r', '\\n', '\\t'],\n    // RFC 2396: characters not allowed for various reasons.\nunwise = ['{', '}', '|', '\\\\', '^', '`'].concat(delims),\n    // Allowed by RFCs, but cause of XSS attacks.  Always escape these.\nautoEscape = ['\\''].concat(unwise),\n    // Characters that are never ever allowed in a hostname.\n// Note that any invalid chars are also handled, but these\n// are the ones that are *expected* to be seen, so we fast-path\n// them.\nnonHostChars = ['%', '/', '?', ';', '#'].concat(autoEscape),\n    hostEndingChars = ['/', '?', '#'],\n    hostnameMaxLen = 255,\n    hostnamePartPattern = /^[+a-z0-9A-Z_-]{0,63}$/,\n    hostnamePartStart = /^([+a-z0-9A-Z_-]{0,63})(.*)$/,\n    // protocols that can allow \"unsafe\" and \"unwise\" chars.\nunsafeProtocol = {\n  'javascript': true,\n  'javascript:': true\n},\n    // protocols that never have a hostname.\nhostlessProtocol = {\n  'javascript': true,\n  'javascript:': true\n},\n    // protocols that always contain a // bit.\nslashedProtocol = {\n  'http': true,\n  'https': true,\n  'ftp': true,\n  'gopher': true,\n  'file': true,\n  'http:': true,\n  'https:': true,\n  'ftp:': true,\n  'gopher:': true,\n  'file:': true\n},\n    querystring = require('querystring');\n\nfunction urlParse(url, parseQueryString, slashesDenoteHost) {\n  if (url && util.isObject(url) && url instanceof Url) return url;\n  var u = new Url();\n  u.parse(url, parseQueryString, slashesDenoteHost);\n  return u;\n}\n\nUrl.prototype.parse = function (url, parseQueryString, slashesDenoteHost) {\n  if (!util.isString(url)) {\n    throw new TypeError(\"Parameter 'url' must be a string, not \" + typeof url);\n  } // Copy chrome, IE, opera backslash-handling behavior.\n  // Back slashes before the query string get converted to forward slashes\n  // See: https://code.google.com/p/chromium/issues/detail?id=25916\n\n\n  var queryIndex = url.indexOf('?'),\n      splitter = queryIndex !== -1 && queryIndex < url.indexOf('#') ? '?' : '#',\n      uSplit = url.split(splitter),\n      slashRegex = /\\\\/g;\n  uSplit[0] = uSplit[0].replace(slashRegex, '/');\n  url = uSplit.join(splitter);\n  var rest = url; // trim before proceeding.\n  // This is to support parse stuff like \"  http://foo.com  \\n\"\n\n  rest = rest.trim();\n\n  if (!slashesDenoteHost && url.split('#').length === 1) {\n    // Try fast path regexp\n    var simplePath = simplePathPattern.exec(rest);\n\n    if (simplePath) {\n      this.path = rest;\n      this.href = rest;\n      this.pathname = simplePath[1];\n\n      if (simplePath[2]) {\n        this.search = simplePath[2];\n\n        if (parseQueryString) {\n          this.query = querystring.parse(this.search.substr(1));\n        } else {\n          this.query = this.search.substr(1);\n        }\n      } else if (parseQueryString) {\n        this.search = '';\n        this.query = {};\n      }\n\n      return this;\n    }\n  }\n\n  var proto = protocolPattern.exec(rest);\n\n  if (proto) {\n    proto = proto[0];\n    var lowerProto = proto.toLowerCase();\n    this.protocol = lowerProto;\n    rest = rest.substr(proto.length);\n  } // figure out if it's got a host\n  // user@server is *always* interpreted as a hostname, and url\n  // resolution will treat //foo/bar as host=foo,path=bar because that's\n  // how the browser resolves relative URLs.\n\n\n  if (slashesDenoteHost || proto || rest.match(/^\\/\\/[^@\\/]+@[^@\\/]+/)) {\n    var slashes = rest.substr(0, 2) === '//';\n\n    if (slashes && !(proto && hostlessProtocol[proto])) {\n      rest = rest.substr(2);\n      this.slashes = true;\n    }\n  }\n\n  if (!hostlessProtocol[proto] && (slashes || proto && !slashedProtocol[proto])) {\n    // there's a hostname.\n    // the first instance of /, ?, ;, or # ends the host.\n    //\n    // If there is an @ in the hostname, then non-host chars *are* allowed\n    // to the left of the last @ sign, unless some host-ending character\n    // comes *before* the @-sign.\n    // URLs are obnoxious.\n    //\n    // ex:\n    // http://a@b@c/ => user:a@b host:c\n    // http://a@b?@c => user:a host:c path:/?@c\n    // v0.12 TODO(isaacs): This is not quite how Chrome does things.\n    // Review our test case against browsers more comprehensively.\n    // find the first instance of any hostEndingChars\n    var hostEnd = -1;\n\n    for (var i = 0; i < hostEndingChars.length; i++) {\n      var hec = rest.indexOf(hostEndingChars[i]);\n      if (hec !== -1 && (hostEnd === -1 || hec < hostEnd)) hostEnd = hec;\n    } // at this point, either we have an explicit point where the\n    // auth portion cannot go past, or the last @ char is the decider.\n\n\n    var auth, atSign;\n\n    if (hostEnd === -1) {\n      // atSign can be anywhere.\n      atSign = rest.lastIndexOf('@');\n    } else {\n      // atSign must be in auth portion.\n      // http://a@b/c@d => host:b auth:a path:/c@d\n      atSign = rest.lastIndexOf('@', hostEnd);\n    } // Now we have a portion which is definitely the auth.\n    // Pull that off.\n\n\n    if (atSign !== -1) {\n      auth = rest.slice(0, atSign);\n      rest = rest.slice(atSign + 1);\n      this.auth = decodeURIComponent(auth);\n    } // the host is the remaining to the left of the first non-host char\n\n\n    hostEnd = -1;\n\n    for (var i = 0; i < nonHostChars.length; i++) {\n      var hec = rest.indexOf(nonHostChars[i]);\n      if (hec !== -1 && (hostEnd === -1 || hec < hostEnd)) hostEnd = hec;\n    } // if we still have not hit it, then the entire thing is a host.\n\n\n    if (hostEnd === -1) hostEnd = rest.length;\n    this.host = rest.slice(0, hostEnd);\n    rest = rest.slice(hostEnd); // pull out port.\n\n    this.parseHost(); // we've indicated that there is a hostname,\n    // so even if it's empty, it has to be present.\n\n    this.hostname = this.hostname || ''; // if hostname begins with [ and ends with ]\n    // assume that it's an IPv6 address.\n\n    var ipv6Hostname = this.hostname[0] === '[' && this.hostname[this.hostname.length - 1] === ']'; // validate a little.\n\n    if (!ipv6Hostname) {\n      var hostparts = this.hostname.split(/\\./);\n\n      for (var i = 0, l = hostparts.length; i < l; i++) {\n        var part = hostparts[i];\n        if (!part) continue;\n\n        if (!part.match(hostnamePartPattern)) {\n          var newpart = '';\n\n          for (var j = 0, k = part.length; j < k; j++) {\n            if (part.charCodeAt(j) > 127) {\n              // we replace non-ASCII char with a temporary placeholder\n              // we need this to make sure size of hostname is not\n              // broken by replacing non-ASCII by nothing\n              newpart += 'x';\n            } else {\n              newpart += part[j];\n            }\n          } // we test again with ASCII char only\n\n\n          if (!newpart.match(hostnamePartPattern)) {\n            var validParts = hostparts.slice(0, i);\n            var notHost = hostparts.slice(i + 1);\n            var bit = part.match(hostnamePartStart);\n\n            if (bit) {\n              validParts.push(bit[1]);\n              notHost.unshift(bit[2]);\n            }\n\n            if (notHost.length) {\n              rest = '/' + notHost.join('.') + rest;\n            }\n\n            this.hostname = validParts.join('.');\n            break;\n          }\n        }\n      }\n    }\n\n    if (this.hostname.length > hostnameMaxLen) {\n      this.hostname = '';\n    } else {\n      // hostnames are always lower case.\n      this.hostname = this.hostname.toLowerCase();\n    }\n\n    if (!ipv6Hostname) {\n      // IDNA Support: Returns a punycoded representation of \"domain\".\n      // It only converts parts of the domain name that\n      // have non-ASCII characters, i.e. it doesn't matter if\n      // you call it with a domain that already is ASCII-only.\n      this.hostname = punycode.toASCII(this.hostname);\n    }\n\n    var p = this.port ? ':' + this.port : '';\n    var h = this.hostname || '';\n    this.host = h + p;\n    this.href += this.host; // strip [ and ] from the hostname\n    // the host field still retains them, though\n\n    if (ipv6Hostname) {\n      this.hostname = this.hostname.substr(1, this.hostname.length - 2);\n\n      if (rest[0] !== '/') {\n        rest = '/' + rest;\n      }\n    }\n  } // now rest is set to the post-host stuff.\n  // chop off any delim chars.\n\n\n  if (!unsafeProtocol[lowerProto]) {\n    // First, make 100% sure that any \"autoEscape\" chars get\n    // escaped, even if encodeURIComponent doesn't think they\n    // need to be.\n    for (var i = 0, l = autoEscape.length; i < l; i++) {\n      var ae = autoEscape[i];\n      if (rest.indexOf(ae) === -1) continue;\n      var esc = encodeURIComponent(ae);\n\n      if (esc === ae) {\n        esc = escape(ae);\n      }\n\n      rest = rest.split(ae).join(esc);\n    }\n  } // chop off from the tail first.\n\n\n  var hash = rest.indexOf('#');\n\n  if (hash !== -1) {\n    // got a fragment string.\n    this.hash = rest.substr(hash);\n    rest = rest.slice(0, hash);\n  }\n\n  var qm = rest.indexOf('?');\n\n  if (qm !== -1) {\n    this.search = rest.substr(qm);\n    this.query = rest.substr(qm + 1);\n\n    if (parseQueryString) {\n      this.query = querystring.parse(this.query);\n    }\n\n    rest = rest.slice(0, qm);\n  } else if (parseQueryString) {\n    // no query string, but parseQueryString still requested\n    this.search = '';\n    this.query = {};\n  }\n\n  if (rest) this.pathname = rest;\n\n  if (slashedProtocol[lowerProto] && this.hostname && !this.pathname) {\n    this.pathname = '/';\n  } //to support http.request\n\n\n  if (this.pathname || this.search) {\n    var p = this.pathname || '';\n    var s = this.search || '';\n    this.path = p + s;\n  } // finally, reconstruct the href based on what has been validated.\n\n\n  this.href = this.format();\n  return this;\n}; // format a parsed object into a url string\n\n\nfunction urlFormat(obj) {\n  // ensure it's an object, and not a string url.\n  // If it's an obj, this is a no-op.\n  // this way, you can call url_format() on strings\n  // to clean up potentially wonky urls.\n  if (util.isString(obj)) obj = urlParse(obj);\n  if (!(obj instanceof Url)) return Url.prototype.format.call(obj);\n  return obj.format();\n}\n\nUrl.prototype.format = function () {\n  var auth = this.auth || '';\n\n  if (auth) {\n    auth = encodeURIComponent(auth);\n    auth = auth.replace(/%3A/i, ':');\n    auth += '@';\n  }\n\n  var protocol = this.protocol || '',\n      pathname = this.pathname || '',\n      hash = this.hash || '',\n      host = false,\n      query = '';\n\n  if (this.host) {\n    host = auth + this.host;\n  } else if (this.hostname) {\n    host = auth + (this.hostname.indexOf(':') === -1 ? this.hostname : '[' + this.hostname + ']');\n\n    if (this.port) {\n      host += ':' + this.port;\n    }\n  }\n\n  if (this.query && util.isObject(this.query) && Object.keys(this.query).length) {\n    query = querystring.stringify(this.query);\n  }\n\n  var search = this.search || query && '?' + query || '';\n  if (protocol && protocol.substr(-1) !== ':') protocol += ':'; // only the slashedProtocols get the //.  Not mailto:, xmpp:, etc.\n  // unless they had them to begin with.\n\n  if (this.slashes || (!protocol || slashedProtocol[protocol]) && host !== false) {\n    host = '//' + (host || '');\n    if (pathname && pathname.charAt(0) !== '/') pathname = '/' + pathname;\n  } else if (!host) {\n    host = '';\n  }\n\n  if (hash && hash.charAt(0) !== '#') hash = '#' + hash;\n  if (search && search.charAt(0) !== '?') search = '?' + search;\n  pathname = pathname.replace(/[?#]/g, function (match) {\n    return encodeURIComponent(match);\n  });\n  search = search.replace('#', '%23');\n  return protocol + host + pathname + search + hash;\n};\n\nfunction urlResolve(source, relative) {\n  return urlParse(source, false, true).resolve(relative);\n}\n\nUrl.prototype.resolve = function (relative) {\n  return this.resolveObject(urlParse(relative, false, true)).format();\n};\n\nfunction urlResolveObject(source, relative) {\n  if (!source) return relative;\n  return urlParse(source, false, true).resolveObject(relative);\n}\n\nUrl.prototype.resolveObject = function (relative) {\n  if (util.isString(relative)) {\n    var rel = new Url();\n    rel.parse(relative, false, true);\n    relative = rel;\n  }\n\n  var result = new Url();\n  var tkeys = Object.keys(this);\n\n  for (var tk = 0; tk < tkeys.length; tk++) {\n    var tkey = tkeys[tk];\n    result[tkey] = this[tkey];\n  } // hash is always overridden, no matter what.\n  // even href=\"\" will remove it.\n\n\n  result.hash = relative.hash; // if the relative url is empty, then there's nothing left to do here.\n\n  if (relative.href === '') {\n    result.href = result.format();\n    return result;\n  } // hrefs like //foo/bar always cut to the protocol.\n\n\n  if (relative.slashes && !relative.protocol) {\n    // take everything except the protocol from relative\n    var rkeys = Object.keys(relative);\n\n    for (var rk = 0; rk < rkeys.length; rk++) {\n      var rkey = rkeys[rk];\n      if (rkey !== 'protocol') result[rkey] = relative[rkey];\n    } //urlParse appends trailing / to urls like http://www.example.com\n\n\n    if (slashedProtocol[result.protocol] && result.hostname && !result.pathname) {\n      result.path = result.pathname = '/';\n    }\n\n    result.href = result.format();\n    return result;\n  }\n\n  if (relative.protocol && relative.protocol !== result.protocol) {\n    // if it's a known url protocol, then changing\n    // the protocol does weird things\n    // first, if it's not file:, then we MUST have a host,\n    // and if there was a path\n    // to begin with, then we MUST have a path.\n    // if it is file:, then the host is dropped,\n    // because that's known to be hostless.\n    // anything else is assumed to be absolute.\n    if (!slashedProtocol[relative.protocol]) {\n      var keys = Object.keys(relative);\n\n      for (var v = 0; v < keys.length; v++) {\n        var k = keys[v];\n        result[k] = relative[k];\n      }\n\n      result.href = result.format();\n      return result;\n    }\n\n    result.protocol = relative.protocol;\n\n    if (!relative.host && !hostlessProtocol[relative.protocol]) {\n      var relPath = (relative.pathname || '').split('/');\n\n      while (relPath.length && !(relative.host = relPath.shift())) {\n        ;\n      }\n\n      if (!relative.host) relative.host = '';\n      if (!relative.hostname) relative.hostname = '';\n      if (relPath[0] !== '') relPath.unshift('');\n      if (relPath.length < 2) relPath.unshift('');\n      result.pathname = relPath.join('/');\n    } else {\n      result.pathname = relative.pathname;\n    }\n\n    result.search = relative.search;\n    result.query = relative.query;\n    result.host = relative.host || '';\n    result.auth = relative.auth;\n    result.hostname = relative.hostname || relative.host;\n    result.port = relative.port; // to support http.request\n\n    if (result.pathname || result.search) {\n      var p = result.pathname || '';\n      var s = result.search || '';\n      result.path = p + s;\n    }\n\n    result.slashes = result.slashes || relative.slashes;\n    result.href = result.format();\n    return result;\n  }\n\n  var isSourceAbs = result.pathname && result.pathname.charAt(0) === '/',\n      isRelAbs = relative.host || relative.pathname && relative.pathname.charAt(0) === '/',\n      mustEndAbs = isRelAbs || isSourceAbs || result.host && relative.pathname,\n      removeAllDots = mustEndAbs,\n      srcPath = result.pathname && result.pathname.split('/') || [],\n      relPath = relative.pathname && relative.pathname.split('/') || [],\n      psychotic = result.protocol && !slashedProtocol[result.protocol]; // if the url is a non-slashed url, then relative\n  // links like ../.. should be able\n  // to crawl up to the hostname, as well.  This is strange.\n  // result.protocol has already been set by now.\n  // Later on, put the first path part into the host field.\n\n  if (psychotic) {\n    result.hostname = '';\n    result.port = null;\n\n    if (result.host) {\n      if (srcPath[0] === '') srcPath[0] = result.host;else srcPath.unshift(result.host);\n    }\n\n    result.host = '';\n\n    if (relative.protocol) {\n      relative.hostname = null;\n      relative.port = null;\n\n      if (relative.host) {\n        if (relPath[0] === '') relPath[0] = relative.host;else relPath.unshift(relative.host);\n      }\n\n      relative.host = null;\n    }\n\n    mustEndAbs = mustEndAbs && (relPath[0] === '' || srcPath[0] === '');\n  }\n\n  if (isRelAbs) {\n    // it's absolute.\n    result.host = relative.host || relative.host === '' ? relative.host : result.host;\n    result.hostname = relative.hostname || relative.hostname === '' ? relative.hostname : result.hostname;\n    result.search = relative.search;\n    result.query = relative.query;\n    srcPath = relPath; // fall through to the dot-handling below.\n  } else if (relPath.length) {\n    // it's relative\n    // throw away the existing file, and take the new path instead.\n    if (!srcPath) srcPath = [];\n    srcPath.pop();\n    srcPath = srcPath.concat(relPath);\n    result.search = relative.search;\n    result.query = relative.query;\n  } else if (!util.isNullOrUndefined(relative.search)) {\n    // just pull out the search.\n    // like href='?foo'.\n    // Put this after the other two cases because it simplifies the booleans\n    if (psychotic) {\n      result.hostname = result.host = srcPath.shift(); //occationaly the auth can get stuck only in host\n      //this especially happens in cases like\n      //url.resolveObject('mailto:local1@domain1', 'local2@domain2')\n\n      var authInHost = result.host && result.host.indexOf('@') > 0 ? result.host.split('@') : false;\n\n      if (authInHost) {\n        result.auth = authInHost.shift();\n        result.host = result.hostname = authInHost.shift();\n      }\n    }\n\n    result.search = relative.search;\n    result.query = relative.query; //to support http.request\n\n    if (!util.isNull(result.pathname) || !util.isNull(result.search)) {\n      result.path = (result.pathname ? result.pathname : '') + (result.search ? result.search : '');\n    }\n\n    result.href = result.format();\n    return result;\n  }\n\n  if (!srcPath.length) {\n    // no path at all.  easy.\n    // we've already handled the other stuff above.\n    result.pathname = null; //to support http.request\n\n    if (result.search) {\n      result.path = '/' + result.search;\n    } else {\n      result.path = null;\n    }\n\n    result.href = result.format();\n    return result;\n  } // if a url ENDs in . or .., then it must get a trailing slash.\n  // however, if it ends in anything else non-slashy,\n  // then it must NOT get a trailing slash.\n\n\n  var last = srcPath.slice(-1)[0];\n  var hasTrailingSlash = (result.host || relative.host || srcPath.length > 1) && (last === '.' || last === '..') || last === ''; // strip single dots, resolve double dots to parent dir\n  // if the path tries to go above the root, `up` ends up > 0\n\n  var up = 0;\n\n  for (var i = srcPath.length; i >= 0; i--) {\n    last = srcPath[i];\n\n    if (last === '.') {\n      srcPath.splice(i, 1);\n    } else if (last === '..') {\n      srcPath.splice(i, 1);\n      up++;\n    } else if (up) {\n      srcPath.splice(i, 1);\n      up--;\n    }\n  } // if the path is allowed to go above the root, restore leading ..s\n\n\n  if (!mustEndAbs && !removeAllDots) {\n    for (; up--; up) {\n      srcPath.unshift('..');\n    }\n  }\n\n  if (mustEndAbs && srcPath[0] !== '' && (!srcPath[0] || srcPath[0].charAt(0) !== '/')) {\n    srcPath.unshift('');\n  }\n\n  if (hasTrailingSlash && srcPath.join('/').substr(-1) !== '/') {\n    srcPath.push('');\n  }\n\n  var isAbsolute = srcPath[0] === '' || srcPath[0] && srcPath[0].charAt(0) === '/'; // put the host back\n\n  if (psychotic) {\n    result.hostname = result.host = isAbsolute ? '' : srcPath.length ? srcPath.shift() : ''; //occationaly the auth can get stuck only in host\n    //this especially happens in cases like\n    //url.resolveObject('mailto:local1@domain1', 'local2@domain2')\n\n    var authInHost = result.host && result.host.indexOf('@') > 0 ? result.host.split('@') : false;\n\n    if (authInHost) {\n      result.auth = authInHost.shift();\n      result.host = result.hostname = authInHost.shift();\n    }\n  }\n\n  mustEndAbs = mustEndAbs || result.host && srcPath.length;\n\n  if (mustEndAbs && !isAbsolute) {\n    srcPath.unshift('');\n  }\n\n  if (!srcPath.length) {\n    result.pathname = null;\n    result.path = null;\n  } else {\n    result.pathname = srcPath.join('/');\n  } //to support request.http\n\n\n  if (!util.isNull(result.pathname) || !util.isNull(result.search)) {\n    result.path = (result.pathname ? result.pathname : '') + (result.search ? result.search : '');\n  }\n\n  result.auth = relative.auth || result.auth;\n  result.slashes = result.slashes || relative.slashes;\n  result.href = result.format();\n  return result;\n};\n\nUrl.prototype.parseHost = function () {\n  var host = this.host;\n  var port = portPattern.exec(host);\n\n  if (port) {\n    port = port[0];\n\n    if (port !== ':') {\n      this.port = port.substr(1);\n    }\n\n    host = host.substr(0, host.length - port.length);\n  }\n\n  if (host) this.hostname = host;\n};","/* eslint guard-for-in:0 */\nvar AWS;\n/**\n * A set of utility methods for use with the AWS SDK.\n *\n * @!attribute abort\n *   Return this value from an iterator function {each} or {arrayEach}\n *   to break out of the iteration.\n *   @example Breaking out of an iterator function\n *     AWS.util.each({a: 1, b: 2, c: 3}, function(key, value) {\n *       if (key == 'b') return AWS.util.abort;\n *     });\n *   @see each\n *   @see arrayEach\n * @api private\n */\n\nvar util = {\n  environment: 'nodejs',\n  engine: function engine() {\n    if (util.isBrowser() && typeof navigator !== 'undefined') {\n      return navigator.userAgent;\n    } else {\n      var engine = process.platform + '/' + process.version;\n\n      if (process.env.AWS_EXECUTION_ENV) {\n        engine += ' exec-env/' + process.env.AWS_EXECUTION_ENV;\n      }\n\n      return engine;\n    }\n  },\n  userAgent: function userAgent() {\n    var name = util.environment;\n\n    var agent = 'aws-sdk-' + name + '/' + require('./core').VERSION;\n\n    if (name === 'nodejs') agent += ' ' + util.engine();\n    return agent;\n  },\n  uriEscape: function uriEscape(string) {\n    var output = encodeURIComponent(string);\n    output = output.replace(/[^A-Za-z0-9_.~\\-%]+/g, escape); // AWS percent-encodes some extra non-standard characters in a URI\n\n    output = output.replace(/[*]/g, function (ch) {\n      return '%' + ch.charCodeAt(0).toString(16).toUpperCase();\n    });\n    return output;\n  },\n  uriEscapePath: function uriEscapePath(string) {\n    var parts = [];\n    util.arrayEach(string.split('/'), function (part) {\n      parts.push(util.uriEscape(part));\n    });\n    return parts.join('/');\n  },\n  urlParse: function urlParse(url) {\n    return util.url.parse(url);\n  },\n  urlFormat: function urlFormat(url) {\n    return util.url.format(url);\n  },\n  queryStringParse: function queryStringParse(qs) {\n    return util.querystring.parse(qs);\n  },\n  queryParamsToString: function queryParamsToString(params) {\n    var items = [];\n    var escape = util.uriEscape;\n    var sortedKeys = Object.keys(params).sort();\n    util.arrayEach(sortedKeys, function (name) {\n      var value = params[name];\n      var ename = escape(name);\n      var result = ename + '=';\n\n      if (Array.isArray(value)) {\n        var vals = [];\n        util.arrayEach(value, function (item) {\n          vals.push(escape(item));\n        });\n        result = ename + '=' + vals.sort().join('&' + ename + '=');\n      } else if (value !== undefined && value !== null) {\n        result = ename + '=' + escape(value);\n      }\n\n      items.push(result);\n    });\n    return items.join('&');\n  },\n  readFileSync: function readFileSync(path) {\n    if (util.isBrowser()) return null;\n    return require('fs').readFileSync(path, 'utf-8');\n  },\n  base64: {\n    encode: function encode64(string) {\n      if (typeof string === 'number') {\n        throw util.error(new Error('Cannot base64 encode number ' + string));\n      }\n\n      if (string === null || typeof string === 'undefined') {\n        return string;\n      }\n\n      var buf = util.buffer.toBuffer(string);\n      return buf.toString('base64');\n    },\n    decode: function decode64(string) {\n      if (typeof string === 'number') {\n        throw util.error(new Error('Cannot base64 decode number ' + string));\n      }\n\n      if (string === null || typeof string === 'undefined') {\n        return string;\n      }\n\n      return util.buffer.toBuffer(string, 'base64');\n    }\n  },\n  buffer: {\n    /**\n     * Buffer constructor for Node buffer and buffer pollyfill\n     */\n    toBuffer: function toBuffer(data, encoding) {\n      return typeof util.Buffer.from === 'function' && util.Buffer.from !== Uint8Array.from ? util.Buffer.from(data, encoding) : new util.Buffer(data, encoding);\n    },\n    alloc: function alloc(size, fill, encoding) {\n      if (typeof size !== 'number') {\n        throw new Error('size passed to alloc must be a number.');\n      }\n\n      if (typeof util.Buffer.alloc === 'function') {\n        return util.Buffer.alloc(size, fill, encoding);\n      } else {\n        var buf = new util.Buffer(size);\n\n        if (fill !== undefined && typeof buf.fill === 'function') {\n          buf.fill(fill, undefined, undefined, encoding);\n        }\n\n        return buf;\n      }\n    },\n    toStream: function toStream(buffer) {\n      if (!util.Buffer.isBuffer(buffer)) buffer = util.buffer.toBuffer(buffer);\n      var readable = new util.stream.Readable();\n      var pos = 0;\n\n      readable._read = function (size) {\n        if (pos >= buffer.length) return readable.push(null);\n        var end = pos + size;\n        if (end > buffer.length) end = buffer.length;\n        readable.push(buffer.slice(pos, end));\n        pos = end;\n      };\n\n      return readable;\n    },\n\n    /**\n     * Concatenates a list of Buffer objects.\n     */\n    concat: function concat(buffers) {\n      var length = 0,\n          offset = 0,\n          buffer = null,\n          i;\n\n      for (i = 0; i < buffers.length; i++) {\n        length += buffers[i].length;\n      }\n\n      buffer = util.buffer.alloc(length);\n\n      for (i = 0; i < buffers.length; i++) {\n        buffers[i].copy(buffer, offset);\n        offset += buffers[i].length;\n      }\n\n      return buffer;\n    }\n  },\n  string: {\n    byteLength: function byteLength(string) {\n      if (string === null || string === undefined) return 0;\n      if (typeof string === 'string') string = util.buffer.toBuffer(string);\n\n      if (typeof string.byteLength === 'number') {\n        return string.byteLength;\n      } else if (typeof string.length === 'number') {\n        return string.length;\n      } else if (typeof string.size === 'number') {\n        return string.size;\n      } else if (typeof string.path === 'string') {\n        return require('fs').lstatSync(string.path).size;\n      } else {\n        throw util.error(new Error('Cannot determine length of ' + string), {\n          object: string\n        });\n      }\n    },\n    upperFirst: function upperFirst(string) {\n      return string[0].toUpperCase() + string.substr(1);\n    },\n    lowerFirst: function lowerFirst(string) {\n      return string[0].toLowerCase() + string.substr(1);\n    }\n  },\n  ini: {\n    parse: function string(ini) {\n      var currentSection,\n          map = {};\n      util.arrayEach(ini.split(/\\r?\\n/), function (line) {\n        line = line.split(/(^|\\s)[;#]/)[0]; // remove comments\n\n        var section = line.match(/^\\s*\\[([^\\[\\]]+)\\]\\s*$/);\n\n        if (section) {\n          currentSection = section[1];\n        } else if (currentSection) {\n          var item = line.match(/^\\s*(.+?)\\s*=\\s*(.+?)\\s*$/);\n\n          if (item) {\n            map[currentSection] = map[currentSection] || {};\n            map[currentSection][item[1]] = item[2];\n          }\n        }\n      });\n      return map;\n    }\n  },\n  fn: {\n    noop: function noop() {},\n    callback: function callback(err) {\n      if (err) throw err;\n    },\n\n    /**\n     * Turn a synchronous function into as \"async\" function by making it call\n     * a callback. The underlying function is called with all but the last argument,\n     * which is treated as the callback. The callback is passed passed a first argument\n     * of null on success to mimick standard node callbacks.\n     */\n    makeAsync: function makeAsync(fn, expectedArgs) {\n      if (expectedArgs && expectedArgs <= fn.length) {\n        return fn;\n      }\n\n      return function () {\n        var args = Array.prototype.slice.call(arguments, 0);\n        var callback = args.pop();\n        var result = fn.apply(null, args);\n        callback(result);\n      };\n    }\n  },\n\n  /**\n   * Date and time utility functions.\n   */\n  date: {\n    /**\n     * @return [Date] the current JavaScript date object. Since all\n     *   AWS services rely on this date object, you can override\n     *   this function to provide a special time value to AWS service\n     *   requests.\n     */\n    getDate: function getDate() {\n      if (!AWS) AWS = require('./core');\n\n      if (AWS.config.systemClockOffset) {\n        // use offset when non-zero\n        return new Date(new Date().getTime() + AWS.config.systemClockOffset);\n      } else {\n        return new Date();\n      }\n    },\n\n    /**\n     * @return [String] the date in ISO-8601 format\n     */\n    iso8601: function iso8601(date) {\n      if (date === undefined) {\n        date = util.date.getDate();\n      }\n\n      return date.toISOString().replace(/\\.\\d{3}Z$/, 'Z');\n    },\n\n    /**\n     * @return [String] the date in RFC 822 format\n     */\n    rfc822: function rfc822(date) {\n      if (date === undefined) {\n        date = util.date.getDate();\n      }\n\n      return date.toUTCString();\n    },\n\n    /**\n     * @return [Integer] the UNIX timestamp value for the current time\n     */\n    unixTimestamp: function unixTimestamp(date) {\n      if (date === undefined) {\n        date = util.date.getDate();\n      }\n\n      return date.getTime() / 1000;\n    },\n\n    /**\n     * @param [String,number,Date] date\n     * @return [Date]\n     */\n    from: function format(date) {\n      if (typeof date === 'number') {\n        return new Date(date * 1000); // unix timestamp\n      } else {\n        return new Date(date);\n      }\n    },\n\n    /**\n     * Given a Date or date-like value, this function formats the\n     * date into a string of the requested value.\n     * @param [String,number,Date] date\n     * @param [String] formatter Valid formats are:\n     #   * 'iso8601'\n     #   * 'rfc822'\n     #   * 'unixTimestamp'\n     * @return [String]\n     */\n    format: function format(date, formatter) {\n      if (!formatter) formatter = 'iso8601';\n      return util.date[formatter](util.date.from(date));\n    },\n    parseTimestamp: function parseTimestamp(value) {\n      if (typeof value === 'number') {\n        // unix timestamp (number)\n        return new Date(value * 1000);\n      } else if (value.match(/^\\d+$/)) {\n        // unix timestamp\n        return new Date(value * 1000);\n      } else if (value.match(/^\\d{4}/)) {\n        // iso8601\n        return new Date(value);\n      } else if (value.match(/^\\w{3},/)) {\n        // rfc822\n        return new Date(value);\n      } else {\n        throw util.error(new Error('unhandled timestamp format: ' + value), {\n          code: 'TimestampParserError'\n        });\n      }\n    }\n  },\n  crypto: {\n    crc32Table: [0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3, 0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988, 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91, 0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE, 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7, 0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, 0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5, 0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172, 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B, 0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940, 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59, 0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116, 0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F, 0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924, 0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D, 0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433, 0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, 0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01, 0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E, 0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457, 0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65, 0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2, 0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB, 0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0, 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9, 0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086, 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F, 0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD, 0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A, 0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683, 0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8, 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1, 0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE, 0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7, 0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC, 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5, 0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B, 0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, 0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79, 0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236, 0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F, 0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D, 0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A, 0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713, 0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38, 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21, 0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777, 0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, 0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45, 0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2, 0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB, 0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9, 0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF, 0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94, 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D],\n    crc32: function crc32(data) {\n      var tbl = util.crypto.crc32Table;\n      var crc = 0 ^ -1;\n\n      if (typeof data === 'string') {\n        data = util.buffer.toBuffer(data);\n      }\n\n      for (var i = 0; i < data.length; i++) {\n        var code = data.readUInt8(i);\n        crc = crc >>> 8 ^ tbl[(crc ^ code) & 0xFF];\n      }\n\n      return (crc ^ -1) >>> 0;\n    },\n    hmac: function hmac(key, string, digest, fn) {\n      if (!digest) digest = 'binary';\n\n      if (digest === 'buffer') {\n        digest = undefined;\n      }\n\n      if (!fn) fn = 'sha256';\n      if (typeof string === 'string') string = util.buffer.toBuffer(string);\n      return util.crypto.lib.createHmac(fn, key).update(string).digest(digest);\n    },\n    md5: function md5(data, digest, callback) {\n      return util.crypto.hash('md5', data, digest, callback);\n    },\n    sha256: function sha256(data, digest, callback) {\n      return util.crypto.hash('sha256', data, digest, callback);\n    },\n    hash: function hash(algorithm, data, digest, callback) {\n      var hash = util.crypto.createHash(algorithm);\n\n      if (!digest) {\n        digest = 'binary';\n      }\n\n      if (digest === 'buffer') {\n        digest = undefined;\n      }\n\n      if (typeof data === 'string') data = util.buffer.toBuffer(data);\n      var sliceFn = util.arraySliceFn(data);\n      var isBuffer = util.Buffer.isBuffer(data); //Identifying objects with an ArrayBuffer as buffers\n\n      if (util.isBrowser() && typeof ArrayBuffer !== 'undefined' && data && data.buffer instanceof ArrayBuffer) isBuffer = true;\n\n      if (callback && typeof data === 'object' && typeof data.on === 'function' && !isBuffer) {\n        data.on('data', function (chunk) {\n          hash.update(chunk);\n        });\n        data.on('error', function (err) {\n          callback(err);\n        });\n        data.on('end', function () {\n          callback(null, hash.digest(digest));\n        });\n      } else if (callback && sliceFn && !isBuffer && typeof FileReader !== 'undefined') {\n        // this might be a File/Blob\n        var index = 0,\n            size = 1024 * 512;\n        var reader = new FileReader();\n\n        reader.onerror = function () {\n          callback(new Error('Failed to read data.'));\n        };\n\n        reader.onload = function () {\n          var buf = new util.Buffer(new Uint8Array(reader.result));\n          hash.update(buf);\n          index += buf.length;\n\n          reader._continueReading();\n        };\n\n        reader._continueReading = function () {\n          if (index >= data.size) {\n            callback(null, hash.digest(digest));\n            return;\n          }\n\n          var back = index + size;\n          if (back > data.size) back = data.size;\n          reader.readAsArrayBuffer(sliceFn.call(data, index, back));\n        };\n\n        reader._continueReading();\n      } else {\n        if (util.isBrowser() && typeof data === 'object' && !isBuffer) {\n          data = new util.Buffer(new Uint8Array(data));\n        }\n\n        var out = hash.update(data).digest(digest);\n        if (callback) callback(null, out);\n        return out;\n      }\n    },\n    toHex: function toHex(data) {\n      var out = [];\n\n      for (var i = 0; i < data.length; i++) {\n        out.push(('0' + data.charCodeAt(i).toString(16)).substr(-2, 2));\n      }\n\n      return out.join('');\n    },\n    createHash: function createHash(algorithm) {\n      return util.crypto.lib.createHash(algorithm);\n    }\n  },\n\n  /** @!ignore */\n\n  /* Abort constant */\n  abort: {},\n  each: function each(object, iterFunction) {\n    for (var key in object) {\n      if (Object.prototype.hasOwnProperty.call(object, key)) {\n        var ret = iterFunction.call(this, key, object[key]);\n        if (ret === util.abort) break;\n      }\n    }\n  },\n  arrayEach: function arrayEach(array, iterFunction) {\n    for (var idx in array) {\n      if (Object.prototype.hasOwnProperty.call(array, idx)) {\n        var ret = iterFunction.call(this, array[idx], parseInt(idx, 10));\n        if (ret === util.abort) break;\n      }\n    }\n  },\n  update: function update(obj1, obj2) {\n    util.each(obj2, function iterator(key, item) {\n      obj1[key] = item;\n    });\n    return obj1;\n  },\n  merge: function merge(obj1, obj2) {\n    return util.update(util.copy(obj1), obj2);\n  },\n  copy: function copy(object) {\n    if (object === null || object === undefined) return object;\n    var dupe = {}; // jshint forin:false\n\n    for (var key in object) {\n      dupe[key] = object[key];\n    }\n\n    return dupe;\n  },\n  isEmpty: function isEmpty(obj) {\n    for (var prop in obj) {\n      if (Object.prototype.hasOwnProperty.call(obj, prop)) {\n        return false;\n      }\n    }\n\n    return true;\n  },\n  arraySliceFn: function arraySliceFn(obj) {\n    var fn = obj.slice || obj.webkitSlice || obj.mozSlice;\n    return typeof fn === 'function' ? fn : null;\n  },\n  isType: function isType(obj, type) {\n    // handle cross-\"frame\" objects\n    if (typeof type === 'function') type = util.typeName(type);\n    return Object.prototype.toString.call(obj) === '[object ' + type + ']';\n  },\n  typeName: function typeName(type) {\n    if (Object.prototype.hasOwnProperty.call(type, 'name')) return type.name;\n    var str = type.toString();\n    var match = str.match(/^\\s*function (.+)\\(/);\n    return match ? match[1] : str;\n  },\n  error: function error(err, options) {\n    var originalError = null;\n\n    if (typeof err.message === 'string' && err.message !== '') {\n      if (typeof options === 'string' || options && options.message) {\n        originalError = util.copy(err);\n        originalError.message = err.message;\n      }\n    }\n\n    err.message = err.message || null;\n\n    if (typeof options === 'string') {\n      err.message = options;\n    } else if (typeof options === 'object' && options !== null) {\n      util.update(err, options);\n      if (options.message) err.message = options.message;\n      if (options.code || options.name) err.code = options.code || options.name;\n      if (options.stack) err.stack = options.stack;\n    }\n\n    if (typeof Object.defineProperty === 'function') {\n      Object.defineProperty(err, 'name', {\n        writable: true,\n        enumerable: false\n      });\n      Object.defineProperty(err, 'message', {\n        enumerable: true\n      });\n    }\n\n    err.name = options && options.name || err.name || err.code || 'Error';\n    err.time = new Date();\n    if (originalError) err.originalError = originalError;\n    return err;\n  },\n\n  /**\n   * @api private\n   */\n  inherit: function inherit(klass, features) {\n    var newObject = null;\n\n    if (features === undefined) {\n      features = klass;\n      klass = Object;\n      newObject = {};\n    } else {\n      var ctor = function ConstructorWrapper() {};\n\n      ctor.prototype = klass.prototype;\n      newObject = new ctor();\n    } // constructor not supplied, create pass-through ctor\n\n\n    if (features.constructor === Object) {\n      features.constructor = function () {\n        if (klass !== Object) {\n          return klass.apply(this, arguments);\n        }\n      };\n    }\n\n    features.constructor.prototype = newObject;\n    util.update(features.constructor.prototype, features);\n    features.constructor.__super__ = klass;\n    return features.constructor;\n  },\n\n  /**\n   * @api private\n   */\n  mixin: function mixin() {\n    var klass = arguments[0];\n\n    for (var i = 1; i < arguments.length; i++) {\n      // jshint forin:false\n      for (var prop in arguments[i].prototype) {\n        var fn = arguments[i].prototype[prop];\n\n        if (prop !== 'constructor') {\n          klass.prototype[prop] = fn;\n        }\n      }\n    }\n\n    return klass;\n  },\n\n  /**\n   * @api private\n   */\n  hideProperties: function hideProperties(obj, props) {\n    if (typeof Object.defineProperty !== 'function') return;\n    util.arrayEach(props, function (key) {\n      Object.defineProperty(obj, key, {\n        enumerable: false,\n        writable: true,\n        configurable: true\n      });\n    });\n  },\n\n  /**\n   * @api private\n   */\n  property: function property(obj, name, value, enumerable, isValue) {\n    var opts = {\n      configurable: true,\n      enumerable: enumerable !== undefined ? enumerable : true\n    };\n\n    if (typeof value === 'function' && !isValue) {\n      opts.get = value;\n    } else {\n      opts.value = value;\n      opts.writable = true;\n    }\n\n    Object.defineProperty(obj, name, opts);\n  },\n\n  /**\n   * @api private\n   */\n  memoizedProperty: function memoizedProperty(obj, name, get, enumerable) {\n    var cachedValue = null; // build enumerable attribute for each value with lazy accessor.\n\n    util.property(obj, name, function () {\n      if (cachedValue === null) {\n        cachedValue = get();\n      }\n\n      return cachedValue;\n    }, enumerable);\n  },\n\n  /**\n   * TODO Remove in major version revision\n   * This backfill populates response data without the\n   * top-level payload name.\n   *\n   * @api private\n   */\n  hoistPayloadMember: function hoistPayloadMember(resp) {\n    var req = resp.request;\n    var operationName = req.operation;\n    var operation = req.service.api.operations[operationName];\n    var output = operation.output;\n\n    if (output.payload && !operation.hasEventOutput) {\n      var payloadMember = output.members[output.payload];\n      var responsePayload = resp.data[output.payload];\n\n      if (payloadMember.type === 'structure') {\n        util.each(responsePayload, function (key, value) {\n          util.property(resp.data, key, value, false);\n        });\n      }\n    }\n  },\n\n  /**\n   * Compute SHA-256 checksums of streams\n   *\n   * @api private\n   */\n  computeSha256: function computeSha256(body, done) {\n    if (util.isNode()) {\n      var Stream = util.stream.Stream;\n\n      var fs = require('fs');\n\n      if (typeof Stream === 'function' && body instanceof Stream) {\n        if (typeof body.path === 'string') {\n          // assume file object\n          var settings = {};\n\n          if (typeof body.start === 'number') {\n            settings.start = body.start;\n          }\n\n          if (typeof body.end === 'number') {\n            settings.end = body.end;\n          }\n\n          body = fs.createReadStream(body.path, settings);\n        } else {\n          // TODO support other stream types\n          return done(new Error('Non-file stream objects are ' + 'not supported with SigV4'));\n        }\n      }\n    }\n\n    util.crypto.sha256(body, 'hex', function (err, sha) {\n      if (err) done(err);else done(null, sha);\n    });\n  },\n\n  /**\n   * @api private\n   */\n  isClockSkewed: function isClockSkewed(serverTime) {\n    if (serverTime) {\n      util.property(AWS.config, 'isClockSkewed', Math.abs(new Date().getTime() - serverTime) >= 300000, false);\n      return AWS.config.isClockSkewed;\n    }\n  },\n  applyClockOffset: function applyClockOffset(serverTime) {\n    if (serverTime) AWS.config.systemClockOffset = serverTime - new Date().getTime();\n  },\n\n  /**\n   * @api private\n   */\n  extractRequestId: function extractRequestId(resp) {\n    var requestId = resp.httpResponse.headers['x-amz-request-id'] || resp.httpResponse.headers['x-amzn-requestid'];\n\n    if (!requestId && resp.data && resp.data.ResponseMetadata) {\n      requestId = resp.data.ResponseMetadata.RequestId;\n    }\n\n    if (requestId) {\n      resp.requestId = requestId;\n    }\n\n    if (resp.error) {\n      resp.error.requestId = requestId;\n    }\n  },\n\n  /**\n   * @api private\n   */\n  addPromises: function addPromises(constructors, PromiseDependency) {\n    var deletePromises = false;\n\n    if (PromiseDependency === undefined && AWS && AWS.config) {\n      PromiseDependency = AWS.config.getPromisesDependency();\n    }\n\n    if (PromiseDependency === undefined && typeof Promise !== 'undefined') {\n      PromiseDependency = Promise;\n    }\n\n    if (typeof PromiseDependency !== 'function') deletePromises = true;\n    if (!Array.isArray(constructors)) constructors = [constructors];\n\n    for (var ind = 0; ind < constructors.length; ind++) {\n      var constructor = constructors[ind];\n\n      if (deletePromises) {\n        if (constructor.deletePromisesFromClass) {\n          constructor.deletePromisesFromClass();\n        }\n      } else if (constructor.addPromisesToClass) {\n        constructor.addPromisesToClass(PromiseDependency);\n      }\n    }\n  },\n\n  /**\n   * @api private\n   */\n  promisifyMethod: function promisifyMethod(methodName, PromiseDependency) {\n    return function promise() {\n      var self = this;\n      return new PromiseDependency(function (resolve, reject) {\n        self[methodName](function (err, data) {\n          if (err) {\n            reject(err);\n          } else {\n            resolve(data);\n          }\n        });\n      });\n    };\n  },\n\n  /**\n   * @api private\n   */\n  isDualstackAvailable: function isDualstackAvailable(service) {\n    if (!service) return false;\n\n    var metadata = require('../apis/metadata.json');\n\n    if (typeof service !== 'string') service = service.serviceIdentifier;\n    if (typeof service !== 'string' || !metadata.hasOwnProperty(service)) return false;\n    return !!metadata[service].dualstackAvailable;\n  },\n\n  /**\n   * @api private\n   */\n  calculateRetryDelay: function calculateRetryDelay(retryCount, retryDelayOptions) {\n    if (!retryDelayOptions) retryDelayOptions = {};\n    var customBackoff = retryDelayOptions.customBackoff || null;\n\n    if (typeof customBackoff === 'function') {\n      return customBackoff(retryCount);\n    }\n\n    var base = typeof retryDelayOptions.base === 'number' ? retryDelayOptions.base : 100;\n    var delay = Math.random() * (Math.pow(2, retryCount) * base);\n    return delay;\n  },\n\n  /**\n   * @api private\n   */\n  handleRequestWithRetries: function handleRequestWithRetries(httpRequest, options, cb) {\n    if (!options) options = {};\n    var http = AWS.HttpClient.getInstance();\n    var httpOptions = options.httpOptions || {};\n    var retryCount = 0;\n\n    var errCallback = function errCallback(err) {\n      var maxRetries = options.maxRetries || 0;\n      if (err && err.code === 'TimeoutError') err.retryable = true;\n\n      if (err && err.retryable && retryCount < maxRetries) {\n        retryCount++;\n        var delay = util.calculateRetryDelay(retryCount, options.retryDelayOptions);\n        setTimeout(sendRequest, delay + (err.retryAfter || 0));\n      } else {\n        cb(err);\n      }\n    };\n\n    var sendRequest = function sendRequest() {\n      var data = '';\n      http.handleRequest(httpRequest, httpOptions, function (httpResponse) {\n        httpResponse.on('data', function (chunk) {\n          data += chunk.toString();\n        });\n        httpResponse.on('end', function () {\n          var statusCode = httpResponse.statusCode;\n\n          if (statusCode < 300) {\n            cb(null, data);\n          } else {\n            var retryAfter = parseInt(httpResponse.headers['retry-after'], 10) * 1000 || 0;\n            var err = util.error(new Error(), {\n              retryable: statusCode >= 500 || statusCode === 429\n            });\n            if (retryAfter && err.retryable) err.retryAfter = retryAfter;\n            errCallback(err);\n          }\n        });\n      }, errCallback);\n    };\n\n    AWS.util.defer(sendRequest);\n  },\n\n  /**\n   * @api private\n   */\n  uuid: {\n    v4: function uuidV4() {\n      return require('uuid').v4();\n    }\n  },\n\n  /**\n   * @api private\n   */\n  convertPayloadToString: function convertPayloadToString(resp) {\n    var req = resp.request;\n    var operation = req.operation;\n    var rules = req.service.api.operations[operation].output || {};\n\n    if (rules.payload && resp.data[rules.payload]) {\n      resp.data[rules.payload] = resp.data[rules.payload].toString();\n    }\n  },\n\n  /**\n   * @api private\n   */\n  defer: function defer(callback) {\n    if (typeof process === 'object' && typeof process.nextTick === 'function') {\n      process.nextTick(callback);\n    } else if (typeof setImmediate === 'function') {\n      setImmediate(callback);\n    } else {\n      setTimeout(callback, 0);\n    }\n  },\n\n  /**\n   * @api private\n   */\n  getRequestPayloadShape: function getRequestPayloadShape(req) {\n    var operations = req.service.api.operations;\n    if (!operations) return undefined;\n    var operation = (operations || {})[req.operation];\n    if (!operation || !operation.input || !operation.input.payload) return undefined;\n    return operation.input.members[operation.input.payload];\n  },\n  getProfilesFromSharedConfig: function getProfilesFromSharedConfig(iniLoader, filename) {\n    var profiles = {};\n    var profilesFromConfig = {};\n\n    if (process.env[util.configOptInEnv]) {\n      var profilesFromConfig = iniLoader.loadFrom({\n        isConfig: true,\n        filename: process.env[util.sharedConfigFileEnv]\n      });\n    }\n\n    var profilesFromCreds = iniLoader.loadFrom({\n      filename: filename || process.env[util.configOptInEnv] && process.env[util.sharedCredentialsFileEnv]\n    });\n\n    for (var i = 0, profileNames = Object.keys(profilesFromConfig); i < profileNames.length; i++) {\n      profiles[profileNames[i]] = profilesFromConfig[profileNames[i]];\n    }\n\n    for (var i = 0, profileNames = Object.keys(profilesFromCreds); i < profileNames.length; i++) {\n      profiles[profileNames[i]] = profilesFromCreds[profileNames[i]];\n    }\n\n    return profiles;\n  },\n\n  /**\n   * @api private\n   */\n  defaultProfile: 'default',\n\n  /**\n   * @api private\n   */\n  configOptInEnv: 'AWS_SDK_LOAD_CONFIG',\n\n  /**\n   * @api private\n   */\n  sharedCredentialsFileEnv: 'AWS_SHARED_CREDENTIALS_FILE',\n\n  /**\n   * @api private\n   */\n  sharedConfigFileEnv: 'AWS_CONFIG_FILE',\n\n  /**\n   * @api private\n   */\n  imdsDisabledEnv: 'AWS_EC2_METADATA_DISABLED'\n};\n/**\n * @api private\n */\n\nmodule.exports = util;",";\n\n(function (root, factory) {\n  if (typeof exports === \"object\") {\n    // CommonJS\n    module.exports = exports = factory(require(\"./core\"));\n  } else if (typeof define === \"function\" && define.amd) {\n    // AMD\n    define([\"./core\"], factory);\n  } else {\n    // Global (browser)\n    factory(root.CryptoJS);\n  }\n})(this, function (CryptoJS) {\n  (function () {\n    // Shortcuts\n    var C = CryptoJS;\n    var C_lib = C.lib;\n    var WordArray = C_lib.WordArray;\n    var C_enc = C.enc;\n    /**\n     * Base64 encoding strategy.\n     */\n\n    var Base64 = C_enc.Base64 = {\n      /**\n       * Converts a word array to a Base64 string.\n       *\n       * @param {WordArray} wordArray The word array.\n       *\n       * @return {string} The Base64 string.\n       *\n       * @static\n       *\n       * @example\n       *\n       *     var base64String = CryptoJS.enc.Base64.stringify(wordArray);\n       */\n      stringify: function stringify(wordArray) {\n        // Shortcuts\n        var words = wordArray.words;\n        var sigBytes = wordArray.sigBytes;\n        var map = this._map; // Clamp excess bits\n\n        wordArray.clamp(); // Convert\n\n        var base64Chars = [];\n\n        for (var i = 0; i < sigBytes; i += 3) {\n          var byte1 = words[i >>> 2] >>> 24 - i % 4 * 8 & 0xff;\n          var byte2 = words[i + 1 >>> 2] >>> 24 - (i + 1) % 4 * 8 & 0xff;\n          var byte3 = words[i + 2 >>> 2] >>> 24 - (i + 2) % 4 * 8 & 0xff;\n          var triplet = byte1 << 16 | byte2 << 8 | byte3;\n\n          for (var j = 0; j < 4 && i + j * 0.75 < sigBytes; j++) {\n            base64Chars.push(map.charAt(triplet >>> 6 * (3 - j) & 0x3f));\n          }\n        } // Add padding\n\n\n        var paddingChar = map.charAt(64);\n\n        if (paddingChar) {\n          while (base64Chars.length % 4) {\n            base64Chars.push(paddingChar);\n          }\n        }\n\n        return base64Chars.join('');\n      },\n\n      /**\n       * Converts a Base64 string to a word array.\n       *\n       * @param {string} base64Str The Base64 string.\n       *\n       * @return {WordArray} The word array.\n       *\n       * @static\n       *\n       * @example\n       *\n       *     var wordArray = CryptoJS.enc.Base64.parse(base64String);\n       */\n      parse: function parse(base64Str) {\n        // Shortcuts\n        var base64StrLength = base64Str.length;\n        var map = this._map;\n        var reverseMap = this._reverseMap;\n\n        if (!reverseMap) {\n          reverseMap = this._reverseMap = [];\n\n          for (var j = 0; j < map.length; j++) {\n            reverseMap[map.charCodeAt(j)] = j;\n          }\n        } // Ignore padding\n\n\n        var paddingChar = map.charAt(64);\n\n        if (paddingChar) {\n          var paddingIndex = base64Str.indexOf(paddingChar);\n\n          if (paddingIndex !== -1) {\n            base64StrLength = paddingIndex;\n          }\n        } // Convert\n\n\n        return parseLoop(base64Str, base64StrLength, reverseMap);\n      },\n      _map: 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/='\n    };\n\n    function parseLoop(base64Str, base64StrLength, reverseMap) {\n      var words = [];\n      var nBytes = 0;\n\n      for (var i = 0; i < base64StrLength; i++) {\n        if (i % 4) {\n          var bits1 = reverseMap[base64Str.charCodeAt(i - 1)] << i % 4 * 2;\n          var bits2 = reverseMap[base64Str.charCodeAt(i)] >>> 6 - i % 4 * 2;\n          words[nBytes >>> 2] |= (bits1 | bits2) << 24 - nBytes % 4 * 8;\n          nBytes++;\n        }\n      }\n\n      return WordArray.create(words, nBytes);\n    }\n  })();\n\n  return CryptoJS.enc.Base64;\n});","var AWS = require('../core');\n\nvar inherit = AWS.util.inherit;\n/**\n * @api private\n */\n\nAWS.Signers.V2 = inherit(AWS.Signers.RequestSigner, {\n  addAuthorization: function addAuthorization(credentials, date) {\n    if (!date) date = AWS.util.date.getDate();\n    var r = this.request;\n    r.params.Timestamp = AWS.util.date.iso8601(date);\n    r.params.SignatureVersion = '2';\n    r.params.SignatureMethod = 'HmacSHA256';\n    r.params.AWSAccessKeyId = credentials.accessKeyId;\n\n    if (credentials.sessionToken) {\n      r.params.SecurityToken = credentials.sessionToken;\n    }\n\n    delete r.params.Signature; // delete old Signature for re-signing\n\n    r.params.Signature = this.signature(credentials);\n    r.body = AWS.util.queryParamsToString(r.params);\n    r.headers['Content-Length'] = r.body.length;\n  },\n  signature: function signature(credentials) {\n    return AWS.util.crypto.hmac(credentials.secretAccessKey, this.stringToSign(), 'base64');\n  },\n  stringToSign: function stringToSign() {\n    var parts = [];\n    parts.push(this.request.method);\n    parts.push(this.request.endpoint.host.toLowerCase());\n    parts.push(this.request.pathname());\n    parts.push(AWS.util.queryParamsToString(this.request.params));\n    return parts.join('\\n');\n  }\n});\n/**\n * @api private\n */\n\nmodule.exports = AWS.Signers.V2;",";\n\n(function (root, factory) {\n  if (typeof exports === \"object\") {\n    // CommonJS\n    module.exports = exports = factory(require(\"./core\"));\n  } else if (typeof define === \"function\" && define.amd) {\n    // AMD\n    define([\"./core\"], factory);\n  } else {\n    // Global (browser)\n    factory(root.CryptoJS);\n  }\n})(this, function (CryptoJS) {\n  (function () {\n    // Check if typed arrays are supported\n    if (typeof ArrayBuffer != 'function') {\n      return;\n    } // Shortcuts\n\n\n    var C = CryptoJS;\n    var C_lib = C.lib;\n    var WordArray = C_lib.WordArray; // Reference original init\n\n    var superInit = WordArray.init; // Augment WordArray.init to handle typed arrays\n\n    var subInit = WordArray.init = function (typedArray) {\n      // Convert buffers to uint8\n      if (typedArray instanceof ArrayBuffer) {\n        typedArray = new Uint8Array(typedArray);\n      } // Convert other array views to uint8\n\n\n      if (typedArray instanceof Int8Array || typeof Uint8ClampedArray !== \"undefined\" && typedArray instanceof Uint8ClampedArray || typedArray instanceof Int16Array || typedArray instanceof Uint16Array || typedArray instanceof Int32Array || typedArray instanceof Uint32Array || typedArray instanceof Float32Array || typedArray instanceof Float64Array) {\n        typedArray = new Uint8Array(typedArray.buffer, typedArray.byteOffset, typedArray.byteLength);\n      } // Handle Uint8Array\n\n\n      if (typedArray instanceof Uint8Array) {\n        // Shortcut\n        var typedArrayByteLength = typedArray.byteLength; // Extract bytes\n\n        var words = [];\n\n        for (var i = 0; i < typedArrayByteLength; i++) {\n          words[i >>> 2] |= typedArray[i] << 24 - i % 4 * 8;\n        } // Initialize this word array\n\n\n        superInit.call(this, words, typedArrayByteLength);\n      } else {\n        // Else call normal init\n        superInit.apply(this, arguments);\n      }\n    };\n\n    subInit.prototype = WordArray;\n  })();\n\n  return CryptoJS.lib.WordArray;\n});","var util = require('../util');\n\nfunction JsonBuilder() {}\n\nJsonBuilder.prototype.build = function (value, shape) {\n  return JSON.stringify(translate(value, shape));\n};\n\nfunction translate(value, shape) {\n  if (!shape || value === undefined || value === null) return undefined;\n\n  switch (shape.type) {\n    case 'structure':\n      return translateStructure(value, shape);\n\n    case 'map':\n      return translateMap(value, shape);\n\n    case 'list':\n      return translateList(value, shape);\n\n    default:\n      return translateScalar(value, shape);\n  }\n}\n\nfunction translateStructure(structure, shape) {\n  var struct = {};\n  util.each(structure, function (name, value) {\n    var memberShape = shape.members[name];\n\n    if (memberShape) {\n      if (memberShape.location !== 'body') return;\n      var locationName = memberShape.isLocationName ? memberShape.name : name;\n      var result = translate(value, memberShape);\n      if (result !== undefined) struct[locationName] = result;\n    }\n  });\n  return struct;\n}\n\nfunction translateList(list, shape) {\n  var out = [];\n  util.arrayEach(list, function (value) {\n    var result = translate(value, shape.member);\n    if (result !== undefined) out.push(result);\n  });\n  return out;\n}\n\nfunction translateMap(map, shape) {\n  var out = {};\n  util.each(map, function (key, value) {\n    var result = translate(value, shape.value);\n    if (result !== undefined) out[key] = result;\n  });\n  return out;\n}\n\nfunction translateScalar(value, shape) {\n  return shape.toWireFormat(value);\n}\n/**\n * @api private\n */\n\n\nmodule.exports = JsonBuilder;","var AWS = require('../core');\n\nvar STS = require('../../clients/sts');\n/**\n * Represents temporary credentials retrieved from {AWS.STS}. Without any\n * extra parameters, credentials will be fetched from the\n * {AWS.STS.getSessionToken} operation. If an IAM role is provided, the\n * {AWS.STS.assumeRole} operation will be used to fetch credentials for the\n * role instead.\n *\n * @note AWS.TemporaryCredentials is deprecated, but remains available for\n *   backwards compatibility. {AWS.ChainableTemporaryCredentials} is the\n *   preferred class for temporary credentials.\n *\n * To setup temporary credentials, configure a set of master credentials\n * using the standard credentials providers (environment, EC2 instance metadata,\n * or from the filesystem), then set the global credentials to a new\n * temporary credentials object:\n *\n * ```javascript\n * // Note that environment credentials are loaded by default,\n * // the following line is shown for clarity:\n * AWS.config.credentials = new AWS.EnvironmentCredentials('AWS');\n *\n * // Now set temporary credentials seeded from the master credentials\n * AWS.config.credentials = new AWS.TemporaryCredentials();\n *\n * // subsequent requests will now use temporary credentials from AWS STS.\n * new AWS.S3().listBucket(function(err, data) { ... });\n * ```\n *\n * @!attribute masterCredentials\n *   @return [AWS.Credentials] the master (non-temporary) credentials used to\n *     get and refresh temporary credentials from AWS STS.\n * @note (see constructor)\n */\n\n\nAWS.TemporaryCredentials = AWS.util.inherit(AWS.Credentials, {\n  /**\n   * Creates a new temporary credentials object.\n   *\n   * @note In order to create temporary credentials, you first need to have\n   *   \"master\" credentials configured in {AWS.Config.credentials}. These\n   *   master credentials are necessary to retrieve the temporary credentials,\n   *   as well as refresh the credentials when they expire.\n   * @param params [map] a map of options that are passed to the\n   *   {AWS.STS.assumeRole} or {AWS.STS.getSessionToken} operations.\n   *   If a `RoleArn` parameter is passed in, credentials will be based on the\n   *   IAM role.\n   * @param masterCredentials [AWS.Credentials] the master (non-temporary) credentials\n   *  used to get and refresh temporary credentials from AWS STS.\n   * @example Creating a new credentials object for generic temporary credentials\n   *   AWS.config.credentials = new AWS.TemporaryCredentials();\n   * @example Creating a new credentials object for an IAM role\n   *   AWS.config.credentials = new AWS.TemporaryCredentials({\n   *     RoleArn: 'arn:aws:iam::1234567890:role/TemporaryCredentials',\n   *   });\n   * @see AWS.STS.assumeRole\n   * @see AWS.STS.getSessionToken\n   */\n  constructor: function TemporaryCredentials(params, masterCredentials) {\n    AWS.Credentials.call(this);\n    this.loadMasterCredentials(masterCredentials);\n    this.expired = true;\n    this.params = params || {};\n\n    if (this.params.RoleArn) {\n      this.params.RoleSessionName = this.params.RoleSessionName || 'temporary-credentials';\n    }\n  },\n\n  /**\n   * Refreshes credentials using {AWS.STS.assumeRole} or\n   * {AWS.STS.getSessionToken}, depending on whether an IAM role ARN was passed\n   * to the credentials {constructor}.\n   *\n   * @callback callback function(err)\n   *   Called when the STS service responds (or fails). When\n   *   this callback is called with no error, it means that the credentials\n   *   information has been loaded into the object (as the `accessKeyId`,\n   *   `secretAccessKey`, and `sessionToken` properties).\n   *   @param err [Error] if an error occurred, this value will be filled\n   * @see get\n   */\n  refresh: function refresh(callback) {\n    this.coalesceRefresh(callback || AWS.util.fn.callback);\n  },\n\n  /**\n   * @api private\n   */\n  load: function load(callback) {\n    var self = this;\n    self.createClients();\n    self.masterCredentials.get(function () {\n      self.service.config.credentials = self.masterCredentials;\n      var operation = self.params.RoleArn ? self.service.assumeRole : self.service.getSessionToken;\n      operation.call(self.service, function (err, data) {\n        if (!err) {\n          self.service.credentialsFrom(data, self);\n        }\n\n        callback(err);\n      });\n    });\n  },\n\n  /**\n   * @api private\n   */\n  loadMasterCredentials: function loadMasterCredentials(masterCredentials) {\n    this.masterCredentials = masterCredentials || AWS.config.credentials;\n\n    while (this.masterCredentials.masterCredentials) {\n      this.masterCredentials = this.masterCredentials.masterCredentials;\n    }\n\n    if (typeof this.masterCredentials.get !== 'function') {\n      this.masterCredentials = new AWS.Credentials(this.masterCredentials);\n    }\n  },\n\n  /**\n   * @api private\n   */\n  createClients: function createClients() {\n    this.service = this.service || new STS({\n      params: this.params\n    });\n  }\n});","require('../lib/node_loader');\n\nvar AWS = require('../lib/core');\n\nvar Service = AWS.Service;\nvar apiLoader = AWS.apiLoader;\napiLoader.services['cognitoidentity'] = {};\nAWS.CognitoIdentity = Service.defineService('cognitoidentity', ['2014-06-30']);\n\nrequire('../lib/services/cognitoidentity');\n\nObject.defineProperty(apiLoader.services['cognitoidentity'], '2014-06-30', {\n  get: function get() {\n    var model = require('../apis/cognito-identity-2014-06-30.min.json');\n\n    model.paginators = require('../apis/cognito-identity-2014-06-30.paginators.json').pagination;\n    return model;\n  },\n  enumerable: true,\n  configurable: true\n});\nmodule.exports = AWS.CognitoIdentity;","var AWS = require('../core');\n\nAWS.util.update(AWS.CognitoIdentity.prototype, {\n  getOpenIdToken: function getOpenIdToken(params, callback) {\n    return this.makeUnauthenticatedRequest('getOpenIdToken', params, callback);\n  },\n  getId: function getId(params, callback) {\n    return this.makeUnauthenticatedRequest('getId', params, callback);\n  },\n  getCredentialsForIdentity: function getCredentialsForIdentity(params, callback) {\n    return this.makeUnauthenticatedRequest('getCredentialsForIdentity', params, callback);\n  }\n});","/*\n * Copyright 2017-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n *     http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nvar __spreadArrays = this && this.__spreadArrays || function () {\n  for (var s = 0, i = 0, il = arguments.length; i < il; i++) {\n    s += arguments[i].length;\n  }\n\n  for (var r = Array(s), k = 0, i = 0; i < il; i++) {\n    for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++) {\n      r[k] = a[j];\n    }\n  }\n\n  return r;\n};\n\nvar LOG_LEVELS = {\n  VERBOSE: 1,\n  DEBUG: 2,\n  INFO: 3,\n  WARN: 4,\n  ERROR: 5\n};\n/**\n * Write logs\n * @class Logger\n */\n\nvar ConsoleLogger =\n/** @class */\nfunction () {\n  /**\n   * @constructor\n   * @param {string} name - Name of the logger\n   */\n  function ConsoleLogger(name, level) {\n    if (level === void 0) {\n      level = 'WARN';\n    }\n\n    this.name = name;\n    this.level = level;\n  }\n\n  ConsoleLogger.prototype._padding = function (n) {\n    return n < 10 ? '0' + n : '' + n;\n  };\n\n  ConsoleLogger.prototype._ts = function () {\n    var dt = new Date();\n    return [this._padding(dt.getMinutes()), this._padding(dt.getSeconds())].join(':') + '.' + dt.getMilliseconds();\n  };\n  /**\n   * Write log\n   * @method\n   * @memeberof Logger\n   * @param {string} type - log type, default INFO\n   * @param {string|object} msg - Logging message or object\n   */\n\n\n  ConsoleLogger.prototype._log = function (type) {\n    var msg = [];\n\n    for (var _i = 1; _i < arguments.length; _i++) {\n      msg[_i - 1] = arguments[_i];\n    }\n\n    var logger_level_name = this.level;\n\n    if (ConsoleLogger.LOG_LEVEL) {\n      logger_level_name = ConsoleLogger.LOG_LEVEL;\n    }\n\n    if (typeof window !== 'undefined' && window.LOG_LEVEL) {\n      logger_level_name = window.LOG_LEVEL;\n    }\n\n    var logger_level = LOG_LEVELS[logger_level_name];\n    var type_level = LOG_LEVELS[type];\n\n    if (!(type_level >= logger_level)) {\n      // Do nothing if type is not greater than or equal to logger level (handle undefined)\n      return;\n    }\n\n    var log = console.log.bind(console);\n\n    if (type === 'ERROR' && console.error) {\n      log = console.error.bind(console);\n    }\n\n    if (type === 'WARN' && console.warn) {\n      log = console.warn.bind(console);\n    }\n\n    var prefix = \"[\" + type + \"] \" + this._ts() + \" \" + this.name;\n\n    if (msg.length === 1 && typeof msg[0] === 'string') {\n      log(prefix + \" - \" + msg[0]);\n    } else if (msg.length === 1) {\n      log(prefix, msg[0]);\n    } else if (typeof msg[0] === 'string') {\n      var obj = msg.slice(1);\n\n      if (obj.length === 1) {\n        obj = obj[0];\n      }\n\n      log(prefix + \" - \" + msg[0], obj);\n    } else {\n      log(prefix, msg);\n    }\n  };\n  /**\n   * Write General log. Default to INFO\n   * @method\n   * @memeberof Logger\n   * @param {string|object} msg - Logging message or object\n   */\n\n\n  ConsoleLogger.prototype.log = function () {\n    var msg = [];\n\n    for (var _i = 0; _i < arguments.length; _i++) {\n      msg[_i] = arguments[_i];\n    }\n\n    this._log.apply(this, __spreadArrays(['INFO'], msg));\n  };\n  /**\n   * Write INFO log\n   * @method\n   * @memeberof Logger\n   * @param {string|object} msg - Logging message or object\n   */\n\n\n  ConsoleLogger.prototype.info = function () {\n    var msg = [];\n\n    for (var _i = 0; _i < arguments.length; _i++) {\n      msg[_i] = arguments[_i];\n    }\n\n    this._log.apply(this, __spreadArrays(['INFO'], msg));\n  };\n  /**\n   * Write WARN log\n   * @method\n   * @memeberof Logger\n   * @param {string|object} msg - Logging message or object\n   */\n\n\n  ConsoleLogger.prototype.warn = function () {\n    var msg = [];\n\n    for (var _i = 0; _i < arguments.length; _i++) {\n      msg[_i] = arguments[_i];\n    }\n\n    this._log.apply(this, __spreadArrays(['WARN'], msg));\n  };\n  /**\n   * Write ERROR log\n   * @method\n   * @memeberof Logger\n   * @param {string|object} msg - Logging message or object\n   */\n\n\n  ConsoleLogger.prototype.error = function () {\n    var msg = [];\n\n    for (var _i = 0; _i < arguments.length; _i++) {\n      msg[_i] = arguments[_i];\n    }\n\n    this._log.apply(this, __spreadArrays(['ERROR'], msg));\n  };\n  /**\n   * Write DEBUG log\n   * @method\n   * @memeberof Logger\n   * @param {string|object} msg - Logging message or object\n   */\n\n\n  ConsoleLogger.prototype.debug = function () {\n    var msg = [];\n\n    for (var _i = 0; _i < arguments.length; _i++) {\n      msg[_i] = arguments[_i];\n    }\n\n    this._log.apply(this, __spreadArrays(['DEBUG'], msg));\n  };\n  /**\n   * Write VERBOSE log\n   * @method\n   * @memeberof Logger\n   * @param {string|object} msg - Logging message or object\n   */\n\n\n  ConsoleLogger.prototype.verbose = function () {\n    var msg = [];\n\n    for (var _i = 0; _i < arguments.length; _i++) {\n      msg[_i] = arguments[_i];\n    }\n\n    this._log.apply(this, __spreadArrays(['VERBOSE'], msg));\n  };\n\n  ConsoleLogger.LOG_LEVEL = null;\n  return ConsoleLogger;\n}();\n\nexport { ConsoleLogger };","import { ConsoleLogger as LoggerClass } from './Logger';\nvar logger = new LoggerClass('Amplify');\n\nvar Amplify =\n/** @class */\nfunction () {\n  function Amplify() {}\n\n  Amplify.register = function (comp) {\n    logger.debug('component registered in amplify', comp);\n\n    this._components.push(comp);\n\n    if (typeof comp.getModuleName === 'function') {\n      Amplify[comp.getModuleName()] = comp;\n    } else {\n      logger.debug('no getModuleName method for component', comp);\n    }\n  };\n\n  Amplify.configure = function (config) {\n    var _this = this;\n\n    if (!config) return this._config;\n    this._config = Object.assign(this._config, config);\n    logger.debug('amplify config', this._config);\n\n    this._components.map(function (comp) {\n      comp.configure(_this._config);\n    });\n\n    return this._config;\n  };\n\n  Amplify.addPluggable = function (pluggable) {\n    if (pluggable && pluggable['getCategory'] && typeof pluggable['getCategory'] === 'function') {\n      this._components.map(function (comp) {\n        if (comp['addPluggable'] && typeof comp['addPluggable'] === 'function') {\n          comp.addPluggable(pluggable);\n        }\n      });\n    }\n  };\n\n  Amplify._components = [];\n  Amplify._config = {}; // for backward compatibility to avoid breaking change\n  // if someone is using like Amplify.Auth\n\n  Amplify.Auth = null;\n  Amplify.Analytics = null;\n  Amplify.API = null;\n  Amplify.Storage = null;\n  Amplify.I18n = null;\n  Amplify.Cache = null;\n  Amplify.PubSub = null;\n  Amplify.Interactions = null;\n  Amplify.Pushnotification = null;\n  Amplify.UI = null;\n  Amplify.XR = null;\n  Amplify.Predictions = null;\n  Amplify.Logger = LoggerClass;\n  Amplify.ServiceWorker = null;\n  return Amplify;\n}();\n\nexport default Amplify;","/*\n * Copyright 2017-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n *     http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nimport { ConsoleLogger as Logger } from '../Logger';\nvar logger = new Logger('ClientDevice_Browser');\nexport function clientInfo() {\n  if (typeof window === 'undefined') {\n    return {};\n  }\n\n  return browserClientInfo();\n}\n\nfunction browserClientInfo() {\n  if (typeof window === 'undefined') {\n    logger.warn('No window object available to get browser client info');\n    return {};\n  }\n\n  var nav = window.navigator;\n\n  if (!nav) {\n    logger.warn('No navigator object available to get browser client info');\n    return {};\n  }\n\n  var platform = nav.platform,\n      product = nav.product,\n      vendor = nav.vendor,\n      userAgent = nav.userAgent,\n      language = nav.language;\n  var type = browserType(userAgent);\n  var timezone = browserTimezone();\n  return {\n    platform: platform,\n    make: product || vendor,\n    model: type.type,\n    version: type.version,\n    appVersion: [type.type, type.version].join('/'),\n    language: language,\n    timezone: timezone\n  };\n}\n\nexport function dimension() {\n  if (typeof window === 'undefined') {\n    logger.warn('No window object available to get browser client info');\n    return {\n      width: 320,\n      height: 320\n    };\n  }\n\n  return {\n    width: window.innerWidth,\n    height: window.innerHeight\n  };\n}\n\nfunction browserTimezone() {\n  var tzMatch = /\\(([A-Za-z\\s].*)\\)/.exec(new Date().toString());\n  return tzMatch ? tzMatch[1] || '' : '';\n}\n\nfunction browserType(userAgent) {\n  var operaMatch = /.+(Opera[\\s[A-Z]*|OPR[\\sA-Z]*)\\/([0-9\\.]+).*/i.exec(userAgent);\n\n  if (operaMatch) {\n    return {\n      type: operaMatch[1],\n      version: operaMatch[2]\n    };\n  }\n\n  var ieMatch = /.+(Trident|Edge)\\/([0-9\\.]+).*/i.exec(userAgent);\n\n  if (ieMatch) {\n    return {\n      type: ieMatch[1],\n      version: ieMatch[2]\n    };\n  }\n\n  var cfMatch = /.+(Chrome|Firefox|FxiOS)\\/([0-9\\.]+).*/i.exec(userAgent);\n\n  if (cfMatch) {\n    return {\n      type: cfMatch[1],\n      version: cfMatch[2]\n    };\n  }\n\n  var sMatch = /.+(Safari)\\/([0-9\\.]+).*/i.exec(userAgent);\n\n  if (sMatch) {\n    return {\n      type: sMatch[1],\n      version: sMatch[2]\n    };\n  }\n\n  var awkMatch = /.+(AppleWebKit)\\/([0-9\\.]+).*/i.exec(userAgent);\n\n  if (awkMatch) {\n    return {\n      type: awkMatch[1],\n      version: awkMatch[2]\n    };\n  }\n\n  var anyMatch = /.*([A-Z]+)\\/([0-9\\.]+).*/i.exec(userAgent);\n\n  if (anyMatch) {\n    return {\n      type: anyMatch[1],\n      version: anyMatch[2]\n    };\n  }\n\n  return {\n    type: '',\n    version: ''\n  };\n}","/*\n * Copyright 2017-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n *     http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nimport * as Browser from './browser';\n\nvar ClientDevice =\n/** @class */\nfunction () {\n  function ClientDevice() {}\n\n  ClientDevice.clientInfo = function () {\n    return Browser.clientInfo();\n  };\n\n  ClientDevice.dimension = function () {\n    return Browser.dimension();\n  };\n\n  return ClientDevice;\n}();\n\nexport default ClientDevice;","/*\n * Copyright 2017-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n *     http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nvar __assign = this && this.__assign || function () {\n  __assign = Object.assign || function (t) {\n    for (var s, i = 1, n = arguments.length; i < n; i++) {\n      s = arguments[i];\n\n      for (var p in s) {\n        if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\n      }\n    }\n\n    return t;\n  };\n\n  return __assign.apply(this, arguments);\n};\n\nvar __spreadArrays = this && this.__spreadArrays || function () {\n  for (var s = 0, i = 0, il = arguments.length; i < il; i++) {\n    s += arguments[i].length;\n  }\n\n  for (var r = Array(s), k = 0, i = 0; i < il; i++) {\n    for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++) {\n      r[k] = a[j];\n    }\n  }\n\n  return r;\n};\n\nimport { ConsoleLogger as Logger } from './Logger';\nvar logger = new Logger('Hub');\nvar AMPLIFY_SYMBOL = typeof Symbol !== 'undefined' && typeof Symbol.for === 'function' ? Symbol.for('amplify_default') : '@@amplify_default';\n\nfunction isLegacyCallback(callback) {\n  return callback.onHubCapsule !== undefined;\n}\n\nvar HubClass =\n/** @class */\nfunction () {\n  function HubClass(name) {\n    this.listeners = [];\n    this.patterns = [];\n    this.protectedChannels = ['core', 'auth', 'api', 'analytics', 'interactions', 'pubsub', 'storage', 'xr'];\n    this.name = name;\n  } // Note - Need to pass channel as a reference for removal to work and not anonymous function\n\n\n  HubClass.prototype.remove = function (channel, listener) {\n    if (channel instanceof RegExp) {\n      var pattern_1 = this.patterns.find(function (_a) {\n        var pattern = _a.pattern;\n        return pattern.source === channel.source;\n      });\n\n      if (!pattern_1) {\n        logger.warn(\"No listeners for \" + channel);\n        return;\n      }\n\n      this.patterns = __spreadArrays(this.patterns.filter(function (x) {\n        return x !== pattern_1;\n      }));\n    } else {\n      var holder = this.listeners[channel];\n\n      if (!holder) {\n        logger.warn(\"No listeners for \" + channel);\n        return;\n      }\n\n      this.listeners[channel] = __spreadArrays(holder.filter(function (_a) {\n        var callback = _a.callback;\n        return callback !== listener;\n      }));\n    }\n  };\n\n  HubClass.prototype.dispatch = function (channel, payload, source, ampSymbol) {\n    if (source === void 0) {\n      source = '';\n    }\n\n    if (this.protectedChannels.indexOf(channel) > -1) {\n      var hasAccess = ampSymbol === AMPLIFY_SYMBOL;\n\n      if (!hasAccess) {\n        logger.warn(\"WARNING: \" + channel + \" is protected and dispatching on it can have unintended consequences\");\n      }\n    }\n\n    var capsule = {\n      channel: channel,\n      payload: __assign({}, payload),\n      source: source,\n      patternInfo: []\n    };\n\n    try {\n      this._toListeners(capsule);\n    } catch (e) {\n      logger.error(e);\n    }\n  };\n\n  HubClass.prototype.listen = function (channel, callback, listenerName) {\n    if (listenerName === void 0) {\n      listenerName = 'noname';\n    }\n\n    var cb; // Check for legacy onHubCapsule callback for backwards compatability\n\n    if (isLegacyCallback(callback)) {\n      logger.warn(\"WARNING onHubCapsule is Deprecated. Please pass in a callback.\");\n      cb = callback.onHubCapsule.bind(callback);\n    } else if (typeof callback !== 'function') {\n      throw new Error('No callback supplied to Hub');\n    } else {\n      cb = callback;\n    }\n\n    if (channel instanceof RegExp) {\n      this.patterns.push({\n        pattern: channel,\n        callback: cb\n      });\n    } else {\n      var holder = this.listeners[channel];\n\n      if (!holder) {\n        holder = [];\n        this.listeners[channel] = holder;\n      }\n\n      holder.push({\n        name: listenerName,\n        callback: cb\n      });\n    }\n  };\n\n  HubClass.prototype._toListeners = function (capsule) {\n    var channel = capsule.channel,\n        payload = capsule.payload;\n    var holder = this.listeners[channel];\n\n    if (holder) {\n      holder.forEach(function (listener) {\n        logger.debug(\"Dispatching to \" + channel + \" with \", payload);\n\n        try {\n          listener.callback(capsule);\n        } catch (e) {\n          logger.error(e);\n        }\n      });\n    }\n\n    if (this.patterns.length > 0) {\n      if (!payload.message) {\n        logger.warn(\"Cannot perform pattern matching without a message key\");\n        return;\n      }\n\n      var payloadStr_1 = payload.message;\n      this.patterns.forEach(function (pattern) {\n        var match = payloadStr_1.match(pattern.pattern);\n\n        if (match) {\n          var groups = match.slice(1);\n\n          var dispatchingCapsule = __assign(__assign({}, capsule), {\n            patternInfo: groups\n          });\n\n          try {\n            pattern.callback(dispatchingCapsule);\n          } catch (e) {\n            logger.error(e);\n          }\n        }\n      });\n    }\n  };\n\n  return HubClass;\n}();\n\nexport { HubClass };\n/*We export a __default__ instance of HubClass to use it as a\npsuedo Singleton for the main messaging bus, however you can still create\nyour own instance of HubClass() for a separate \"private bus\" of events.*/\n\nvar Hub = new HubClass('__default__');\nexport default Hub;","/*\n * Copyright 2017-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n *     http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nimport { ConsoleLogger as Logger } from '../Logger';\nvar logger = new Logger('I18n');\n/**\n * Language transition class\n */\n\nvar I18n =\n/** @class */\nfunction () {\n  /**\n   * @constructor\n   * Initialize with configurations\n   * @param {Object} options\n   */\n  function I18n(options) {\n    /**\n     * @private\n     */\n    this._options = null;\n    /**\n     * @private\n     */\n\n    this._lang = null;\n    /**\n     * @private\n     */\n\n    this._dict = {};\n    this._options = Object.assign({}, options);\n    this._lang = this._options.language;\n\n    if (!this._lang && typeof window !== 'undefined' && window && window.navigator) {\n      this._lang = window.navigator.language;\n    }\n\n    logger.debug(this._lang);\n  }\n  /**\n   * @method\n   * Explicitly setting language\n   * @param {String} lang\n   */\n\n\n  I18n.prototype.setLanguage = function (lang) {\n    this._lang = lang;\n  };\n  /**\n   * @method\n   * Get value\n   * @param {String} key\n   * @param {String} defVal - Default value\n   */\n\n\n  I18n.prototype.get = function (key, defVal) {\n    if (defVal === void 0) {\n      defVal = undefined;\n    }\n\n    if (!this._lang) {\n      return typeof defVal !== 'undefined' ? defVal : key;\n    }\n\n    var lang = this._lang;\n    var val = this.getByLanguage(key, lang);\n\n    if (val) {\n      return val;\n    }\n\n    if (lang.indexOf('-') > 0) {\n      val = this.getByLanguage(key, lang.split('-')[0]);\n    }\n\n    if (val) {\n      return val;\n    }\n\n    return typeof defVal !== 'undefined' ? defVal : key;\n  };\n  /**\n   * @method\n   * Get value according to specified language\n   * @param {String} key\n   * @param {String} language - Specified langurage to be used\n   * @param {String} defVal - Default value\n   */\n\n\n  I18n.prototype.getByLanguage = function (key, language, defVal) {\n    if (defVal === void 0) {\n      defVal = null;\n    }\n\n    if (!language) {\n      return defVal;\n    }\n\n    var lang_dict = this._dict[language];\n\n    if (!lang_dict) {\n      return defVal;\n    }\n\n    return lang_dict[key];\n  };\n  /**\n   * @method\n   * Add vocabularies for one language\n   * @param {String} langurage - Language of the dictionary\n   * @param {Object} vocabularies - Object that has key-value as dictionary entry\n   */\n\n\n  I18n.prototype.putVocabulariesForLanguage = function (language, vocabularies) {\n    var lang_dict = this._dict[language];\n\n    if (!lang_dict) {\n      lang_dict = this._dict[language] = {};\n    }\n\n    Object.assign(lang_dict, vocabularies);\n  };\n  /**\n   * @method\n   * Add vocabularies for one language\n   * @param {Object} vocabularies - Object that has language as key,\n   *                                vocabularies of each language as value\n   */\n\n\n  I18n.prototype.putVocabularies = function (vocabularies) {\n    var _this = this;\n\n    Object.keys(vocabularies).map(function (key) {\n      _this.putVocabulariesForLanguage(key, vocabularies[key]);\n    });\n  };\n\n  return I18n;\n}();\n\nexport { I18n };","/*\n * Copyright 2017-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n *     http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nimport { I18n as I18nClass } from './I18n';\nimport { ConsoleLogger as Logger } from '../Logger';\nimport Amplify from '../Amplify';\nvar logger = new Logger('I18n');\nvar _config = null;\nvar _i18n = null;\n/**\n * Export I18n APIs\n */\n\nvar I18n =\n/** @class */\nfunction () {\n  function I18n() {}\n  /**\n   * @static\n   * @method\n   * Configure I18n part\n   * @param {Object} config - Configuration of the I18n\n   */\n\n\n  I18n.configure = function (config) {\n    logger.debug('configure I18n');\n\n    if (!config) {\n      return _config;\n    }\n\n    _config = Object.assign({}, _config, config.I18n || config);\n    I18n.createInstance();\n    return _config;\n  };\n\n  I18n.getModuleName = function () {\n    return 'I18n';\n  };\n  /**\n   * @static\n   * @method\n   * Create an instance of I18n for the library\n   */\n\n\n  I18n.createInstance = function () {\n    logger.debug('create I18n instance');\n\n    if (_i18n) {\n      return;\n    }\n\n    _i18n = new I18nClass(_config);\n  };\n  /**\n   * @static @method\n   * Explicitly setting language\n   * @param {String} lang\n   */\n\n\n  I18n.setLanguage = function (lang) {\n    I18n.checkConfig();\n    return _i18n.setLanguage(lang);\n  };\n  /**\n   * @static @method\n   * Get value\n   * @param {String} key\n   * @param {String} defVal - Default value\n   */\n\n\n  I18n.get = function (key, defVal) {\n    if (!I18n.checkConfig()) {\n      return typeof defVal === 'undefined' ? key : defVal;\n    }\n\n    return _i18n.get(key, defVal);\n  };\n  /**\n   * @static\n   * @method\n   * Add vocabularies for one language\n   * @param {String} langurage - Language of the dictionary\n   * @param {Object} vocabularies - Object that has key-value as dictionary entry\n   */\n\n\n  I18n.putVocabulariesForLanguage = function (language, vocabularies) {\n    I18n.checkConfig();\n    return _i18n.putVocabulariesForLanguage(language, vocabularies);\n  };\n  /**\n   * @static\n   * @method\n   * Add vocabularies for one language\n   * @param {Object} vocabularies - Object that has language as key,\n   *                                vocabularies of each language as value\n   */\n\n\n  I18n.putVocabularies = function (vocabularies) {\n    I18n.checkConfig();\n    return _i18n.putVocabularies(vocabularies);\n  };\n\n  I18n.checkConfig = function () {\n    if (!_i18n) {\n      _i18n = new I18nClass(_config);\n    }\n\n    return true;\n  };\n\n  return I18n;\n}();\n\nAmplify.register(I18n);\nexport default I18n;","/*\n * Copyright 2017-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n *     http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nvar __assign = this && this.__assign || function () {\n  __assign = Object.assign || function (t) {\n    for (var s, i = 1, n = arguments.length; i < n; i++) {\n      s = arguments[i];\n\n      for (var p in s) {\n        if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\n      }\n    }\n\n    return t;\n  };\n\n  return __assign.apply(this, arguments);\n};\n\nvar __rest = this && this.__rest || function (s, e) {\n  var t = {};\n\n  for (var p in s) {\n    if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0) t[p] = s[p];\n  }\n\n  if (s != null && typeof Object.getOwnPropertySymbols === \"function\") for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\n    if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i])) t[p[i]] = s[p[i]];\n  }\n  return t;\n};\n\nimport { ConsoleLogger as Logger } from './Logger';\nimport { AWS } from './Facet';\n\nvar logger = new Logger('Signer'),\n    url = require('url'),\n    crypto = AWS['util'].crypto;\n\nvar DEFAULT_ALGORITHM = 'AWS4-HMAC-SHA256';\nvar IOT_SERVICE_NAME = 'iotdevicegateway';\n\nvar encrypt = function encrypt(key, src, encoding) {\n  return crypto.lib.createHmac('sha256', key).update(src, 'utf8').digest(encoding);\n};\n\nvar hash = function hash(src) {\n  var arg = src || '';\n  return crypto.createHash('sha256').update(arg, 'utf8').digest('hex');\n};\n/**\n * @private\n * RFC 3986 compliant version of encodeURIComponent\n */\n\n\nvar escape_RFC3986 = function escape_RFC3986(component) {\n  return component.replace(/[!'()*]/g, function (c) {\n    return '%' + c.charCodeAt(0).toString(16).toUpperCase();\n  });\n};\n/**\n * @private\n * Create canonical query string\n *\n */\n\n\nvar canonical_query = function canonical_query(query) {\n  if (!query || query.length === 0) {\n    return '';\n  }\n\n  return query.split('&').map(function (e) {\n    var key_val = e.split('=');\n\n    if (key_val.length === 1) {\n      return e;\n    } else {\n      var reencoded_val = escape_RFC3986(key_val[1]);\n      return key_val[0] + '=' + reencoded_val;\n    }\n  }).sort(function (a, b) {\n    var key_a = a.split('=')[0];\n    var key_b = b.split('=')[0];\n\n    if (key_a === key_b) {\n      return a < b ? -1 : 1;\n    } else {\n      return key_a < key_b ? -1 : 1;\n    }\n  }).join('&');\n};\n/**\n* @private\n* Create canonical headers\n*\n<pre>\nCanonicalHeaders =\n    CanonicalHeadersEntry0 + CanonicalHeadersEntry1 + ... + CanonicalHeadersEntryN\nCanonicalHeadersEntry =\n    Lowercase(HeaderName) + ':' + Trimall(HeaderValue) + '\\n'\n</pre>\n*/\n\n\nvar canonical_headers = function canonical_headers(headers) {\n  if (!headers || Object.keys(headers).length === 0) {\n    return '';\n  }\n\n  return Object.keys(headers).map(function (key) {\n    return {\n      key: key.toLowerCase(),\n      value: headers[key] ? headers[key].trim().replace(/\\s+/g, ' ') : ''\n    };\n  }).sort(function (a, b) {\n    return a.key < b.key ? -1 : 1;\n  }).map(function (item) {\n    return item.key + ':' + item.value;\n  }).join('\\n') + '\\n';\n};\n/**\n * List of header keys included in the canonical headers.\n * @access private\n */\n\n\nvar signed_headers = function signed_headers(headers) {\n  return Object.keys(headers).map(function (key) {\n    return key.toLowerCase();\n  }).sort().join(';');\n};\n/**\n* @private\n* Create canonical request\n* Refer to\n* {@link http://docs.aws.amazon.com/general/latest/gr/sigv4-create-canonical-request.html|Create a Canonical Request}\n*\n<pre>\nCanonicalRequest =\n    HTTPRequestMethod + '\\n' +\n    CanonicalURI + '\\n' +\n    CanonicalQueryString + '\\n' +\n    CanonicalHeaders + '\\n' +\n    SignedHeaders + '\\n' +\n    HexEncode(Hash(RequestPayload))\n</pre>\n*/\n\n\nvar canonical_request = function canonical_request(request) {\n  var url_info = url.parse(request.url);\n  return [request.method || '/', encodeURIComponent(url_info.pathname).replace(/%2F/gi, '/'), canonical_query(url_info.query), canonical_headers(request.headers), signed_headers(request.headers), hash(request.data)].join('\\n');\n};\n\nvar parse_service_info = function parse_service_info(request) {\n  var url_info = url.parse(request.url),\n      host = url_info.host;\n  var matched = host.match(/([^\\.]+)\\.(?:([^\\.]*)\\.)?amazonaws\\.com$/);\n  var parsed = (matched || []).slice(1, 3);\n\n  if (parsed[1] === 'es') {\n    // Elastic Search\n    parsed = parsed.reverse();\n  }\n\n  return {\n    service: request.service || parsed[0],\n    region: request.region || parsed[1]\n  };\n};\n\nvar credential_scope = function credential_scope(d_str, region, service) {\n  return [d_str, region, service, 'aws4_request'].join('/');\n};\n/**\n* @private\n* Create a string to sign\n* Refer to\n* {@link http://docs.aws.amazon.com/general/latest/gr/sigv4-create-string-to-sign.html|Create String to Sign}\n*\n<pre>\nStringToSign =\n    Algorithm + \\n +\n    RequestDateTime + \\n +\n    CredentialScope + \\n +\n    HashedCanonicalRequest\n</pre>\n*/\n\n\nvar string_to_sign = function string_to_sign(algorithm, canonical_request, dt_str, scope) {\n  return [algorithm, dt_str, scope, hash(canonical_request)].join('\\n');\n};\n/**\n* @private\n* Create signing key\n* Refer to\n* {@link http://docs.aws.amazon.com/general/latest/gr/sigv4-calculate-signature.html|Calculate Signature}\n*\n<pre>\nkSecret = your secret access key\nkDate = HMAC(\"AWS4\" + kSecret, Date)\nkRegion = HMAC(kDate, Region)\nkService = HMAC(kRegion, Service)\nkSigning = HMAC(kService, \"aws4_request\")\n</pre>\n*/\n\n\nvar get_signing_key = function get_signing_key(secret_key, d_str, service_info) {\n  logger.debug(service_info);\n  var k = 'AWS4' + secret_key,\n      k_date = encrypt(k, d_str),\n      k_region = encrypt(k_date, service_info.region),\n      k_service = encrypt(k_region, service_info.service),\n      k_signing = encrypt(k_service, 'aws4_request');\n  return k_signing;\n};\n\nvar get_signature = function get_signature(signing_key, str_to_sign) {\n  return encrypt(signing_key, str_to_sign, 'hex');\n};\n/**\n * @private\n * Create authorization header\n * Refer to\n * {@link http://docs.aws.amazon.com/general/latest/gr/sigv4-add-signature-to-request.html|Add the Signing Information}\n */\n\n\nvar get_authorization_header = function get_authorization_header(algorithm, access_key, scope, signed_headers, signature) {\n  return [algorithm + ' ' + 'Credential=' + access_key + '/' + scope, 'SignedHeaders=' + signed_headers, 'Signature=' + signature].join(', ');\n};\n/**\n * AWS request signer.\n * Refer to {@link http://docs.aws.amazon.com/general/latest/gr/sigv4_signing.html|Signature Version 4}\n *\n * @class Signer\n */\n\n\nvar Signer =\n/** @class */\nfunction () {\n  function Signer() {}\n  /**\n  * Sign a HTTP request, add 'Authorization' header to request param\n  * @method sign\n  * @memberof Signer\n  * @static\n  *\n  * @param {object} request - HTTP request object\n  <pre>\n  request: {\n      method: GET | POST | PUT ...\n      url: ...,\n      headers: {\n          header1: ...\n      },\n      data: data\n  }\n  </pre>\n  * @param {object} access_info - AWS access credential info\n  <pre>\n  access_info: {\n      access_key: ...,\n      secret_key: ...,\n      session_token: ...\n  }\n  </pre>\n  * @param {object} [service_info] - AWS service type and region, optional,\n  *                                  if not provided then parse out from url\n  <pre>\n  service_info: {\n      service: ...,\n      region: ...\n  }\n  </pre>\n  *\n  * @returns {object} Signed HTTP request\n  */\n\n\n  Signer.sign = function (request, access_info, service_info) {\n    if (service_info === void 0) {\n      service_info = null;\n    }\n\n    request.headers = request.headers || {}; // datetime string and date string\n\n    var dt = new Date(),\n        dt_str = dt.toISOString().replace(/[:\\-]|\\.\\d{3}/g, ''),\n        d_str = dt_str.substr(0, 8);\n    var url_info = url.parse(request.url);\n    request.headers['host'] = url_info.host;\n    request.headers['x-amz-date'] = dt_str;\n\n    if (access_info.session_token) {\n      request.headers['X-Amz-Security-Token'] = access_info.session_token;\n    } // Task 1: Create a Canonical Request\n\n\n    var request_str = canonical_request(request);\n    logger.debug(request_str); // Task 2: Create a String to Sign\n\n    var serviceInfo = service_info || parse_service_info(request),\n        scope = credential_scope(d_str, serviceInfo.region, serviceInfo.service),\n        str_to_sign = string_to_sign(DEFAULT_ALGORITHM, request_str, dt_str, scope); // Task 3: Calculate the Signature\n\n    var signing_key = get_signing_key(access_info.secret_key, d_str, serviceInfo),\n        signature = get_signature(signing_key, str_to_sign); // Task 4: Adding the Signing information to the Request\n\n    var authorization_header = get_authorization_header(DEFAULT_ALGORITHM, access_info.access_key, scope, signed_headers(request.headers), signature);\n    request.headers['Authorization'] = authorization_header;\n    return request;\n  };\n\n  Signer.signUrl = function (urlOrRequest, accessInfo, serviceInfo, expiration) {\n    var urlToSign = typeof urlOrRequest === 'object' ? urlOrRequest.url : urlOrRequest;\n    var method = typeof urlOrRequest === 'object' ? urlOrRequest.method : 'GET';\n    var body = typeof urlOrRequest === 'object' ? urlOrRequest.body : undefined;\n    var now = new Date().toISOString().replace(/[:\\-]|\\.\\d{3}/g, '');\n    var today = now.substr(0, 8); // Intentionally discarding search\n\n    var _a = url.parse(urlToSign, true, true),\n        search = _a.search,\n        parsedUrl = __rest(_a, [\"search\"]);\n\n    var host = parsedUrl.host;\n    var signedHeaders = {\n      host: host\n    };\n\n    var _b = serviceInfo || parse_service_info({\n      url: url.format(parsedUrl)\n    }),\n        region = _b.region,\n        service = _b.service;\n\n    var credentialScope = credential_scope(today, region, service); // IoT service does not allow the session token in the canonical request\n    // https://docs.aws.amazon.com/general/latest/gr/sigv4-add-signature-to-request.html\n\n    var sessionTokenRequired = accessInfo.session_token && service !== IOT_SERVICE_NAME;\n\n    var queryParams = __assign(__assign(__assign({\n      'X-Amz-Algorithm': DEFAULT_ALGORITHM,\n      'X-Amz-Credential': [accessInfo.access_key, credentialScope].join('/'),\n      'X-Amz-Date': now.substr(0, 16)\n    }, sessionTokenRequired ? {\n      'X-Amz-Security-Token': \"\" + accessInfo.session_token\n    } : {}), expiration ? {\n      'X-Amz-Expires': \"\" + expiration\n    } : {}), {\n      'X-Amz-SignedHeaders': Object.keys(signedHeaders).join(',')\n    });\n\n    var canonicalRequest = canonical_request({\n      method: method,\n      url: url.format(__assign(__assign({}, parsedUrl), {\n        query: __assign(__assign({}, parsedUrl.query), queryParams)\n      })),\n      headers: signedHeaders,\n      data: body\n    });\n    var stringToSign = string_to_sign(DEFAULT_ALGORITHM, canonicalRequest, now, credentialScope);\n    var signing_key = get_signing_key(accessInfo.secret_key, today, {\n      region: region,\n      service: service\n    });\n    var signature = get_signature(signing_key, stringToSign);\n\n    var additionalQueryParams = __assign({\n      'X-Amz-Signature': signature\n    }, accessInfo.session_token && {\n      'X-Amz-Security-Token': accessInfo.session_token\n    });\n\n    var result = url.format({\n      protocol: parsedUrl.protocol,\n      slashes: true,\n      hostname: parsedUrl.hostname,\n      port: parsedUrl.port,\n      pathname: parsedUrl.pathname,\n      query: __assign(__assign(__assign({}, parsedUrl.query), queryParams), additionalQueryParams)\n    });\n    return result;\n  };\n\n  return Signer;\n}();\n\nexport default Signer;","import { ConsoleLogger as Logger } from './Logger';\nvar logger = new Logger('Parser');\n\nvar Parser =\n/** @class */\nfunction () {\n  function Parser() {}\n\n  Parser.parseMobilehubConfig = function (config) {\n    var amplifyConfig = {}; // Analytics\n\n    if (config['aws_mobile_analytics_app_id']) {\n      var Analytics = {\n        AWSPinpoint: {\n          appId: config['aws_mobile_analytics_app_id'],\n          region: config['aws_mobile_analytics_app_region']\n        }\n      };\n      amplifyConfig.Analytics = Analytics;\n    } // Auth\n\n\n    if (config['aws_cognito_identity_pool_id'] || config['aws_user_pools_id']) {\n      var Auth = {\n        userPoolId: config['aws_user_pools_id'],\n        userPoolWebClientId: config['aws_user_pools_web_client_id'],\n        region: config['aws_cognito_region'],\n        identityPoolId: config['aws_cognito_identity_pool_id'],\n        mandatorySignIn: config['aws_mandatory_sign_in'] === 'enable' ? true : false\n      };\n      amplifyConfig.Auth = Auth;\n    } // Storage\n\n\n    var storageConfig;\n\n    if (config['aws_user_files_s3_bucket']) {\n      storageConfig = {\n        AWSS3: {\n          bucket: config['aws_user_files_s3_bucket'],\n          region: config['aws_user_files_s3_bucket_region'],\n          dangerouslyConnectToHttpEndpointForTesting: config['aws_user_files_s3_dangerously_connect_to_http_endpoint_for_testing']\n        }\n      };\n    } else {\n      storageConfig = config ? config.Storage || config : {};\n    }\n\n    amplifyConfig.Analytics = Object.assign({}, amplifyConfig.Analytics, config.Analytics);\n    amplifyConfig.Auth = Object.assign({}, amplifyConfig.Auth, config.Auth);\n    amplifyConfig.Storage = Object.assign({}, storageConfig);\n    logger.debug('parse config', config, 'to amplifyconfig', amplifyConfig);\n    return amplifyConfig;\n  };\n\n  return Parser;\n}();\n\nexport default Parser;","var __awaiter = this && this.__awaiter || function (thisArg, _arguments, P, generator) {\n  function adopt(value) {\n    return value instanceof P ? value : new P(function (resolve) {\n      resolve(value);\n    });\n  }\n\n  return new (P || (P = Promise))(function (resolve, reject) {\n    function fulfilled(value) {\n      try {\n        step(generator.next(value));\n      } catch (e) {\n        reject(e);\n      }\n    }\n\n    function rejected(value) {\n      try {\n        step(generator[\"throw\"](value));\n      } catch (e) {\n        reject(e);\n      }\n    }\n\n    function step(result) {\n      result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected);\n    }\n\n    step((generator = generator.apply(thisArg, _arguments || [])).next());\n  });\n};\n\nvar __generator = this && this.__generator || function (thisArg, body) {\n  var _ = {\n    label: 0,\n    sent: function sent() {\n      if (t[0] & 1) throw t[1];\n      return t[1];\n    },\n    trys: [],\n    ops: []\n  },\n      f,\n      y,\n      t,\n      g;\n  return g = {\n    next: verb(0),\n    \"throw\": verb(1),\n    \"return\": verb(2)\n  }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function () {\n    return this;\n  }), g;\n\n  function verb(n) {\n    return function (v) {\n      return step([n, v]);\n    };\n  }\n\n  function step(op) {\n    if (f) throw new TypeError(\"Generator is already executing.\");\n\n    while (_) {\n      try {\n        if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\n        if (y = 0, t) op = [op[0] & 2, t.value];\n\n        switch (op[0]) {\n          case 0:\n          case 1:\n            t = op;\n            break;\n\n          case 4:\n            _.label++;\n            return {\n              value: op[1],\n              done: false\n            };\n\n          case 5:\n            _.label++;\n            y = op[1];\n            op = [0];\n            continue;\n\n          case 7:\n            op = _.ops.pop();\n\n            _.trys.pop();\n\n            continue;\n\n          default:\n            if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) {\n              _ = 0;\n              continue;\n            }\n\n            if (op[0] === 3 && (!t || op[1] > t[0] && op[1] < t[3])) {\n              _.label = op[1];\n              break;\n            }\n\n            if (op[0] === 6 && _.label < t[1]) {\n              _.label = t[1];\n              t = op;\n              break;\n            }\n\n            if (t && _.label < t[2]) {\n              _.label = t[2];\n\n              _.ops.push(op);\n\n              break;\n            }\n\n            if (t[2]) _.ops.pop();\n\n            _.trys.pop();\n\n            continue;\n        }\n\n        op = body.call(thisArg, _);\n      } catch (e) {\n        op = [6, e];\n        y = 0;\n      } finally {\n        f = t = 0;\n      }\n    }\n\n    if (op[0] & 5) throw op[1];\n    return {\n      value: op[0] ? op[1] : void 0,\n      done: true\n    };\n  }\n};\n/*\n * Copyright 2017-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n *     http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\n\n\nimport { ConsoleLogger as Logger } from '../Logger';\nimport JS from '../JS';\nvar logger = new Logger('CognitoCredentials');\nvar waitForInit = new Promise(function (res, rej) {\n  if (!JS.browserOrNode().isBrowser) {\n    logger.debug('not in the browser, directly resolved');\n    return res();\n  }\n\n  var ga = window['gapi'] && window['gapi'].auth2 ? window['gapi'].auth2 : null;\n\n  if (ga) {\n    logger.debug('google api already loaded');\n    return res();\n  } else {\n    setTimeout(function () {\n      return res();\n    }, 2000);\n  }\n});\n\nvar GoogleOAuth =\n/** @class */\nfunction () {\n  function GoogleOAuth() {\n    this.initialized = false;\n    this.refreshGoogleToken = this.refreshGoogleToken.bind(this);\n    this._refreshGoogleTokenImpl = this._refreshGoogleTokenImpl.bind(this);\n  }\n\n  GoogleOAuth.prototype.refreshGoogleToken = function () {\n    return __awaiter(this, void 0, void 0, function () {\n      return __generator(this, function (_a) {\n        switch (_a.label) {\n          case 0:\n            if (!!this.initialized) return [3\n            /*break*/\n            , 2];\n            logger.debug('need to wait for the Google SDK loaded');\n            return [4\n            /*yield*/\n            , waitForInit];\n\n          case 1:\n            _a.sent();\n\n            this.initialized = true;\n            logger.debug('finish waiting');\n            _a.label = 2;\n\n          case 2:\n            return [2\n            /*return*/\n            , this._refreshGoogleTokenImpl()];\n        }\n      });\n    });\n  };\n\n  GoogleOAuth.prototype._refreshGoogleTokenImpl = function () {\n    var ga = null;\n    if (JS.browserOrNode().isBrowser) ga = window['gapi'] && window['gapi'].auth2 ? window['gapi'].auth2 : null;\n\n    if (!ga) {\n      logger.debug('no gapi auth2 available');\n      return Promise.reject('no gapi auth2 available');\n    }\n\n    return new Promise(function (res, rej) {\n      ga.getAuthInstance().then(function (googleAuth) {\n        if (!googleAuth) {\n          console.log('google Auth undefiend');\n          rej('google Auth undefiend');\n        }\n\n        var googleUser = googleAuth.currentUser.get(); // refresh the token\n\n        if (googleUser.isSignedIn()) {\n          logger.debug('refreshing the google access token');\n          googleUser.reloadAuthResponse().then(function (authResponse) {\n            var id_token = authResponse.id_token,\n                expires_at = authResponse.expires_at;\n            var profile = googleUser.getBasicProfile();\n            var user = {\n              email: profile.getEmail(),\n              name: profile.getName()\n            };\n            res({\n              token: id_token,\n              expires_at: expires_at\n            });\n          });\n        } else {\n          rej('User is not signed in with Google');\n        }\n      }).catch(function (err) {\n        logger.debug('Failed to refresh google token', err);\n        rej('Failed to refresh google token');\n      });\n    });\n  };\n\n  return GoogleOAuth;\n}();\n\nexport default GoogleOAuth;","var __awaiter = this && this.__awaiter || function (thisArg, _arguments, P, generator) {\n  function adopt(value) {\n    return value instanceof P ? value : new P(function (resolve) {\n      resolve(value);\n    });\n  }\n\n  return new (P || (P = Promise))(function (resolve, reject) {\n    function fulfilled(value) {\n      try {\n        step(generator.next(value));\n      } catch (e) {\n        reject(e);\n      }\n    }\n\n    function rejected(value) {\n      try {\n        step(generator[\"throw\"](value));\n      } catch (e) {\n        reject(e);\n      }\n    }\n\n    function step(result) {\n      result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected);\n    }\n\n    step((generator = generator.apply(thisArg, _arguments || [])).next());\n  });\n};\n\nvar __generator = this && this.__generator || function (thisArg, body) {\n  var _ = {\n    label: 0,\n    sent: function sent() {\n      if (t[0] & 1) throw t[1];\n      return t[1];\n    },\n    trys: [],\n    ops: []\n  },\n      f,\n      y,\n      t,\n      g;\n  return g = {\n    next: verb(0),\n    \"throw\": verb(1),\n    \"return\": verb(2)\n  }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function () {\n    return this;\n  }), g;\n\n  function verb(n) {\n    return function (v) {\n      return step([n, v]);\n    };\n  }\n\n  function step(op) {\n    if (f) throw new TypeError(\"Generator is already executing.\");\n\n    while (_) {\n      try {\n        if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\n        if (y = 0, t) op = [op[0] & 2, t.value];\n\n        switch (op[0]) {\n          case 0:\n          case 1:\n            t = op;\n            break;\n\n          case 4:\n            _.label++;\n            return {\n              value: op[1],\n              done: false\n            };\n\n          case 5:\n            _.label++;\n            y = op[1];\n            op = [0];\n            continue;\n\n          case 7:\n            op = _.ops.pop();\n\n            _.trys.pop();\n\n            continue;\n\n          default:\n            if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) {\n              _ = 0;\n              continue;\n            }\n\n            if (op[0] === 3 && (!t || op[1] > t[0] && op[1] < t[3])) {\n              _.label = op[1];\n              break;\n            }\n\n            if (op[0] === 6 && _.label < t[1]) {\n              _.label = t[1];\n              t = op;\n              break;\n            }\n\n            if (t && _.label < t[2]) {\n              _.label = t[2];\n\n              _.ops.push(op);\n\n              break;\n            }\n\n            if (t[2]) _.ops.pop();\n\n            _.trys.pop();\n\n            continue;\n        }\n\n        op = body.call(thisArg, _);\n      } catch (e) {\n        op = [6, e];\n        y = 0;\n      } finally {\n        f = t = 0;\n      }\n    }\n\n    if (op[0] & 5) throw op[1];\n    return {\n      value: op[0] ? op[1] : void 0,\n      done: true\n    };\n  }\n};\n/*\n * Copyright 2017-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n *     http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\n\n\nimport { ConsoleLogger as Logger } from '../Logger';\nimport JS from '../JS';\nvar logger = new Logger('CognitoCredentials');\nvar waitForInit = new Promise(function (res, rej) {\n  if (!JS.browserOrNode().isBrowser) {\n    logger.debug('not in the browser, directly resolved');\n    return res();\n  }\n\n  var fb = window['FB'];\n\n  if (fb) {\n    logger.debug('FB SDK already loaded');\n    return res();\n  } else {\n    setTimeout(function () {\n      return res();\n    }, 2000);\n  }\n});\n\nvar FacebookOAuth =\n/** @class */\nfunction () {\n  function FacebookOAuth() {\n    this.initialized = false;\n    this.refreshFacebookToken = this.refreshFacebookToken.bind(this);\n    this._refreshFacebookTokenImpl = this._refreshFacebookTokenImpl.bind(this);\n  }\n\n  FacebookOAuth.prototype.refreshFacebookToken = function () {\n    return __awaiter(this, void 0, void 0, function () {\n      return __generator(this, function (_a) {\n        switch (_a.label) {\n          case 0:\n            if (!!this.initialized) return [3\n            /*break*/\n            , 2];\n            logger.debug('need to wait for the Facebook SDK loaded');\n            return [4\n            /*yield*/\n            , waitForInit];\n\n          case 1:\n            _a.sent();\n\n            this.initialized = true;\n            logger.debug('finish waiting');\n            _a.label = 2;\n\n          case 2:\n            return [2\n            /*return*/\n            , this._refreshFacebookTokenImpl()];\n        }\n      });\n    });\n  };\n\n  FacebookOAuth.prototype._refreshFacebookTokenImpl = function () {\n    var fb = null;\n    if (JS.browserOrNode().isBrowser) fb = window['FB'];\n\n    if (!fb) {\n      logger.debug('no fb sdk available');\n      return Promise.reject('no fb sdk available');\n    }\n\n    return new Promise(function (res, rej) {\n      fb.getLoginStatus(function (fbResponse) {\n        if (!fbResponse || !fbResponse.authResponse) {\n          logger.debug('no response from facebook when refreshing the jwt token');\n          rej('no response from facebook when refreshing the jwt token');\n        }\n\n        var response = fbResponse.authResponse;\n        var accessToken = response.accessToken,\n            expiresIn = response.expiresIn;\n        var date = new Date();\n        var expires_at = expiresIn * 1000 + date.getTime();\n\n        if (!accessToken) {\n          logger.debug('the jwtToken is undefined');\n          rej('the jwtToken is undefined');\n        }\n\n        res({\n          token: accessToken,\n          expires_at: expires_at\n        });\n      }, {\n        scope: 'public_profile,email'\n      });\n    });\n  };\n\n  return FacebookOAuth;\n}();\n\nexport default FacebookOAuth;","/*\n * Copyright 2017-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n *     http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nimport GoogleOAuthClass from './GoogleOAuth';\nimport FacebookOAuthClass from './FacebookOAuth';\nvar GoogleOAuth = new GoogleOAuthClass();\nvar FacebookOAuth = new FacebookOAuthClass();\nexport { GoogleOAuth, FacebookOAuth };","/*\n * Copyright 2017-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n *     http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nvar dataMemory = {};\n/** @class */\n\nvar MemoryStorage =\n/** @class */\nfunction () {\n  function MemoryStorage() {}\n  /**\n   * This is used to set a specific item in storage\n   * @param {string} key - the key for the item\n   * @param {object} value - the value\n   * @returns {string} value that was set\n   */\n\n\n  MemoryStorage.setItem = function (key, value) {\n    dataMemory[key] = value;\n    return dataMemory[key];\n  };\n  /**\n   * This is used to get a specific key from storage\n   * @param {string} key - the key for the item\n   * This is used to clear the storage\n   * @returns {string} the data item\n   */\n\n\n  MemoryStorage.getItem = function (key) {\n    return Object.prototype.hasOwnProperty.call(dataMemory, key) ? dataMemory[key] : undefined;\n  };\n  /**\n   * This is used to remove an item from storage\n   * @param {string} key - the key being set\n   * @returns {string} value - value that was deleted\n   */\n\n\n  MemoryStorage.removeItem = function (key) {\n    return delete dataMemory[key];\n  };\n  /**\n   * This is used to clear the storage\n   * @returns {string} nothing\n   */\n\n\n  MemoryStorage.clear = function () {\n    dataMemory = {};\n    return dataMemory;\n  };\n\n  return MemoryStorage;\n}();\n\nexport { MemoryStorage };\n\nvar StorageHelper =\n/** @class */\nfunction () {\n  /**\n   * This is used to get a storage object\n   * @returns {object} the storage\n   */\n  function StorageHelper() {\n    try {\n      this.storageWindow = window.localStorage;\n      this.storageWindow.setItem('aws.amplify.test-ls', 1);\n      this.storageWindow.removeItem('aws.amplify.test-ls');\n    } catch (exception) {\n      this.storageWindow = MemoryStorage;\n    }\n  }\n  /**\n   * This is used to return the storage\n   * @returns {object} the storage\n   */\n\n\n  StorageHelper.prototype.getStorage = function () {\n    return this.storageWindow;\n  };\n\n  return StorageHelper;\n}();\n\nexport default StorageHelper;","var __assign = this && this.__assign || function () {\n  __assign = Object.assign || function (t) {\n    for (var s, i = 1, n = arguments.length; i < n; i++) {\n      s = arguments[i];\n\n      for (var p in s) {\n        if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\n      }\n    }\n\n    return t;\n  };\n\n  return __assign.apply(this, arguments);\n};\n\nvar __awaiter = this && this.__awaiter || function (thisArg, _arguments, P, generator) {\n  function adopt(value) {\n    return value instanceof P ? value : new P(function (resolve) {\n      resolve(value);\n    });\n  }\n\n  return new (P || (P = Promise))(function (resolve, reject) {\n    function fulfilled(value) {\n      try {\n        step(generator.next(value));\n      } catch (e) {\n        reject(e);\n      }\n    }\n\n    function rejected(value) {\n      try {\n        step(generator[\"throw\"](value));\n      } catch (e) {\n        reject(e);\n      }\n    }\n\n    function step(result) {\n      result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected);\n    }\n\n    step((generator = generator.apply(thisArg, _arguments || [])).next());\n  });\n};\n\nvar __generator = this && this.__generator || function (thisArg, body) {\n  var _ = {\n    label: 0,\n    sent: function sent() {\n      if (t[0] & 1) throw t[1];\n      return t[1];\n    },\n    trys: [],\n    ops: []\n  },\n      f,\n      y,\n      t,\n      g;\n  return g = {\n    next: verb(0),\n    \"throw\": verb(1),\n    \"return\": verb(2)\n  }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function () {\n    return this;\n  }), g;\n\n  function verb(n) {\n    return function (v) {\n      return step([n, v]);\n    };\n  }\n\n  function step(op) {\n    if (f) throw new TypeError(\"Generator is already executing.\");\n\n    while (_) {\n      try {\n        if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\n        if (y = 0, t) op = [op[0] & 2, t.value];\n\n        switch (op[0]) {\n          case 0:\n          case 1:\n            t = op;\n            break;\n\n          case 4:\n            _.label++;\n            return {\n              value: op[1],\n              done: false\n            };\n\n          case 5:\n            _.label++;\n            y = op[1];\n            op = [0];\n            continue;\n\n          case 7:\n            op = _.ops.pop();\n\n            _.trys.pop();\n\n            continue;\n\n          default:\n            if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) {\n              _ = 0;\n              continue;\n            }\n\n            if (op[0] === 3 && (!t || op[1] > t[0] && op[1] < t[3])) {\n              _.label = op[1];\n              break;\n            }\n\n            if (op[0] === 6 && _.label < t[1]) {\n              _.label = t[1];\n              t = op;\n              break;\n            }\n\n            if (t && _.label < t[2]) {\n              _.label = t[2];\n\n              _.ops.push(op);\n\n              break;\n            }\n\n            if (t[2]) _.ops.pop();\n\n            _.trys.pop();\n\n            continue;\n        }\n\n        op = body.call(thisArg, _);\n      } catch (e) {\n        op = [6, e];\n        y = 0;\n      } finally {\n        f = t = 0;\n      }\n    }\n\n    if (op[0] & 5) throw op[1];\n    return {\n      value: op[0] ? op[1] : void 0,\n      done: true\n    };\n  }\n};\n\nimport { ConsoleLogger as Logger } from './Logger';\nimport StorageHelper from './StorageHelper';\nimport { AWS } from './Facet';\nimport JS from './JS';\nimport { FacebookOAuth, GoogleOAuth } from './OAuthHelper';\nimport Amplify from './Amplify';\nvar logger = new Logger('Credentials');\n\nvar Credentials =\n/** @class */\nfunction () {\n  function Credentials(config) {\n    this._gettingCredPromise = null;\n    this._refreshHandlers = {};\n    this.configure(config);\n    this._refreshHandlers['google'] = GoogleOAuth.refreshGoogleToken;\n    this._refreshHandlers['facebook'] = FacebookOAuth.refreshFacebookToken;\n  }\n\n  Credentials.prototype.getCredSource = function () {\n    return this._credentials_source;\n  };\n\n  Credentials.prototype.configure = function (config) {\n    if (!config) return this._config || {};\n    this._config = Object.assign({}, this._config, config);\n    var refreshHandlers = this._config.refreshHandlers; // If the developer has provided an object of refresh handlers,\n    // then we can merge the provided handlers with the current handlers.\n\n    if (refreshHandlers) {\n      this._refreshHandlers = __assign(__assign({}, this._refreshHandlers), refreshHandlers);\n    }\n\n    this._storage = this._config.storage;\n\n    if (!this._storage) {\n      this._storage = new StorageHelper().getStorage();\n    }\n\n    this._storageSync = Promise.resolve();\n\n    if (typeof this._storage['sync'] === 'function') {\n      this._storageSync = this._storage['sync']();\n    }\n\n    return this._config;\n  };\n\n  Credentials.prototype.get = function () {\n    logger.debug('getting credentials');\n    return this._pickupCredentials();\n  };\n\n  Credentials.prototype._pickupCredentials = function () {\n    logger.debug('picking up credentials');\n\n    if (!this._gettingCredPromise || !this._gettingCredPromise.isPending()) {\n      logger.debug('getting new cred promise');\n\n      if (AWS.config && AWS.config.credentials && AWS.config.credentials instanceof AWS.Credentials) {\n        this._gettingCredPromise = JS.makeQuerablePromise(this._setCredentialsFromAWS());\n      } else {\n        this._gettingCredPromise = JS.makeQuerablePromise(this._keepAlive());\n      }\n    } else {\n      logger.debug('getting old cred promise');\n    }\n\n    return this._gettingCredPromise;\n  };\n\n  Credentials.prototype._keepAlive = function () {\n    logger.debug('checking if credentials exists and not expired');\n    var cred = this._credentials;\n\n    if (cred && !this._isExpired(cred)) {\n      logger.debug('credentials not changed and not expired, directly return');\n      return Promise.resolve(cred);\n    }\n\n    logger.debug('need to get a new credential or refresh the existing one');\n\n    if (Amplify.Auth && typeof Amplify.Auth.currentUserCredentials === 'function') {\n      return Amplify.Auth.currentUserCredentials();\n    } else {\n      return Promise.reject('No Auth module registered in Amplify');\n    }\n  };\n\n  Credentials.prototype.refreshFederatedToken = function (federatedInfo) {\n    var _this = this;\n\n    logger.debug('Getting federated credentials');\n    var provider = federatedInfo.provider,\n        user = federatedInfo.user;\n    var token = federatedInfo.token;\n    var expires_at = federatedInfo.expires_at;\n    var identity_id = federatedInfo.identity_id;\n    var that = this;\n    logger.debug('checking if federated jwt token expired');\n\n    if (expires_at > new Date().getTime()) {\n      // if not expired\n      logger.debug('token not expired');\n      return this._setCredentialsFromFederation({\n        provider: provider,\n        token: token,\n        user: user,\n        identity_id: identity_id,\n        expires_at: expires_at\n      });\n    } else {\n      // if refresh handler exists\n      if (that._refreshHandlers[provider] && typeof that._refreshHandlers[provider] === 'function') {\n        logger.debug('getting refreshed jwt token from federation provider');\n        return that._refreshHandlers[provider]().then(function (data) {\n          logger.debug('refresh federated token sucessfully', data);\n          token = data.token;\n          identity_id = data.identity_id;\n          expires_at = data.expires_at;\n          return that._setCredentialsFromFederation({\n            provider: provider,\n            token: token,\n            user: user,\n            identity_id: identity_id,\n            expires_at: expires_at\n          });\n        }).catch(function (e) {\n          logger.debug('refresh federated token failed', e);\n\n          _this.clear();\n\n          return Promise.reject('refreshing federation token failed: ' + e);\n        });\n      } else {\n        logger.debug('no refresh handler for provider:', provider);\n        this.clear();\n        return Promise.reject('no refresh handler for provider');\n      }\n    }\n  };\n\n  Credentials.prototype._isExpired = function (credentials) {\n    if (!credentials) {\n      logger.debug('no credentials for expiration check');\n      return true;\n    }\n\n    logger.debug('is this credentials expired?', credentials);\n    var ts = new Date().getTime();\n    var delta = 10 * 60 * 1000; // 10 minutes\n\n    var expired = credentials.expired,\n        expireTime = credentials.expireTime;\n\n    if (!expired && expireTime > ts + delta) {\n      return false;\n    }\n\n    return true;\n  };\n\n  Credentials.prototype._setCredentialsForGuest = function () {\n    return __awaiter(this, void 0, void 0, function () {\n      var attempted, _a, identityPoolId, region, mandatorySignIn, identityId, e_1, credentials, that;\n\n      var _this = this;\n\n      return __generator(this, function (_b) {\n        switch (_b.label) {\n          case 0:\n            attempted = false;\n            logger.debug('setting credentials for guest');\n            _a = this._config, identityPoolId = _a.identityPoolId, region = _a.region, mandatorySignIn = _a.mandatorySignIn;\n\n            if (mandatorySignIn) {\n              return [2\n              /*return*/\n              , Promise.reject('cannot get guest credentials when mandatory signin enabled')];\n            }\n\n            if (!identityPoolId) {\n              logger.debug('No Cognito Federated Identity pool provided');\n              return [2\n              /*return*/\n              , Promise.reject('No Cognito Federated Identity pool provided')];\n            }\n\n            identityId = undefined;\n            _b.label = 1;\n\n          case 1:\n            _b.trys.push([1, 3,, 4]);\n\n            return [4\n            /*yield*/\n            , this._storageSync];\n\n          case 2:\n            _b.sent();\n\n            identityId = this._storage.getItem('CognitoIdentityId-' + identityPoolId);\n            return [3\n            /*break*/\n            , 4];\n\n          case 3:\n            e_1 = _b.sent();\n            logger.debug('Failed to get the cached identityId', e_1);\n            return [3\n            /*break*/\n            , 4];\n\n          case 4:\n            credentials = new AWS.CognitoIdentityCredentials({\n              IdentityPoolId: identityPoolId,\n              IdentityId: identityId ? identityId : undefined\n            }, {\n              region: region\n            });\n            that = this;\n            return [2\n            /*return*/\n            , this._loadCredentials(credentials, 'guest', false, null).then(function (res) {\n              return res;\n            }).catch(function (e) {\n              return __awaiter(_this, void 0, void 0, function () {\n                var newCredentials;\n                return __generator(this, function (_a) {\n                  // If identity id is deleted in the console, we make one attempt to recreate it\n                  // and remove existing id from cache.\n                  if (e.code === 'ResourceNotFoundException' && e.message === \"Identity '\" + identityId + \"' not found.\" && !attempted) {\n                    attempted = true;\n                    logger.debug('Failed to load guest credentials');\n\n                    this._storage.removeItem('CognitoIdentityId-' + identityPoolId);\n\n                    credentials.clearCachedId();\n                    newCredentials = new AWS.CognitoIdentityCredentials({\n                      IdentityPoolId: identityPoolId,\n                      IdentityId: undefined\n                    }, {\n                      region: region\n                    });\n                    return [2\n                    /*return*/\n                    , this._loadCredentials(newCredentials, 'guest', false, null)];\n                  } else {\n                    return [2\n                    /*return*/\n                    , e];\n                  }\n\n                  return [2\n                  /*return*/\n                  ];\n                });\n              });\n            })];\n        }\n      });\n    });\n  };\n\n  Credentials.prototype._setCredentialsFromAWS = function () {\n    var credentials = AWS.config.credentials;\n    logger.debug('setting credentials from aws');\n    var that = this;\n\n    if (credentials instanceof AWS.Credentials) {\n      return Promise.resolve(credentials);\n    } else {\n      logger.debug('AWS.config.credentials is not an instance of AWS Credentials');\n      return Promise.reject('AWS.config.credentials is not an instance of AWS Credentials');\n    }\n  };\n\n  Credentials.prototype._setCredentialsFromFederation = function (params) {\n    var provider = params.provider,\n        token = params.token,\n        identity_id = params.identity_id,\n        user = params.user,\n        expires_at = params.expires_at;\n    var domains = {\n      google: 'accounts.google.com',\n      facebook: 'graph.facebook.com',\n      amazon: 'www.amazon.com',\n      developer: 'cognito-identity.amazonaws.com'\n    }; // Use custom provider url instead of the predefined ones\n\n    var domain = domains[provider] || provider;\n\n    if (!domain) {\n      return Promise.reject('You must specify a federated provider');\n    }\n\n    var logins = {};\n    logins[domain] = token;\n    var _a = this._config,\n        identityPoolId = _a.identityPoolId,\n        region = _a.region;\n\n    if (!identityPoolId) {\n      logger.debug('No Cognito Federated Identity pool provided');\n      return Promise.reject('No Cognito Federated Identity pool provided');\n    }\n\n    var credentials = new AWS.CognitoIdentityCredentials({\n      IdentityPoolId: identityPoolId,\n      IdentityId: identity_id,\n      Logins: logins\n    }, {\n      region: region\n    });\n    return this._loadCredentials(credentials, 'federated', true, params);\n  };\n\n  Credentials.prototype._setCredentialsFromSession = function (session) {\n    logger.debug('set credentials from session');\n    var idToken = session.getIdToken().getJwtToken();\n    var _a = this._config,\n        region = _a.region,\n        userPoolId = _a.userPoolId,\n        identityPoolId = _a.identityPoolId;\n\n    if (!identityPoolId) {\n      logger.debug('No Cognito Federated Identity pool provided');\n      return Promise.reject('No Cognito Federated Identity pool provided');\n    }\n\n    var key = 'cognito-idp.' + region + '.amazonaws.com/' + userPoolId;\n    var logins = {};\n    logins[key] = idToken;\n    var credentials = new AWS.CognitoIdentityCredentials({\n      IdentityPoolId: identityPoolId,\n      Logins: logins\n    }, {\n      region: region\n    });\n    return this._loadCredentials(credentials, 'userPool', true, null);\n  };\n\n  Credentials.prototype._loadCredentials = function (credentials, source, authenticated, info) {\n    var _this = this;\n\n    var that = this;\n    var identityPoolId = this._config.identityPoolId;\n    return new Promise(function (res, rej) {\n      credentials.get(function (err) {\n        return __awaiter(_this, void 0, void 0, function () {\n          var user, provider, token, expires_at, identity_id, e_2;\n          return __generator(this, function (_a) {\n            switch (_a.label) {\n              case 0:\n                if (err) {\n                  logger.debug('Failed to load credentials', credentials);\n                  rej(err);\n                  return [2\n                  /*return*/\n                  ];\n                }\n\n                logger.debug('Load credentials successfully', credentials);\n                that._credentials = credentials;\n                that._credentials.authenticated = authenticated;\n                that._credentials_source = source;\n                if (!(source === 'federated')) return [3\n                /*break*/\n                , 3];\n                user = Object.assign({\n                  id: this._credentials.identityId\n                }, info.user);\n                provider = info.provider, token = info.token, expires_at = info.expires_at, identity_id = info.identity_id;\n\n                try {\n                  this._storage.setItem('aws-amplify-federatedInfo', JSON.stringify({\n                    provider: provider,\n                    token: token,\n                    user: user,\n                    expires_at: expires_at,\n                    identity_id: identity_id\n                  }));\n                } catch (e) {\n                  logger.debug('Failed to put federated info into auth storage', e);\n                }\n\n                if (!(Amplify.Cache && typeof Amplify.Cache.setItem === 'function')) return [3\n                /*break*/\n                , 2];\n                return [4\n                /*yield*/\n                , Amplify.Cache.setItem('federatedInfo', {\n                  provider: provider,\n                  token: token,\n                  user: user,\n                  expires_at: expires_at,\n                  identity_id: identity_id\n                }, {\n                  priority: 1\n                })];\n\n              case 1:\n                _a.sent();\n\n                return [3\n                /*break*/\n                , 3];\n\n              case 2:\n                logger.debug('No Cache module registered in Amplify');\n                _a.label = 3;\n\n              case 3:\n                if (!(source === 'guest')) return [3\n                /*break*/\n                , 7];\n                _a.label = 4;\n\n              case 4:\n                _a.trys.push([4, 6,, 7]);\n\n                return [4\n                /*yield*/\n                , this._storageSync];\n\n              case 5:\n                _a.sent();\n\n                this._storage.setItem('CognitoIdentityId-' + identityPoolId, credentials.identityId);\n\n                return [3\n                /*break*/\n                , 7];\n\n              case 6:\n                e_2 = _a.sent();\n                logger.debug('Failed to cache identityId', e_2);\n                return [3\n                /*break*/\n                , 7];\n\n              case 7:\n                res(that._credentials);\n                return [2\n                /*return*/\n                ];\n            }\n          });\n        });\n      });\n    });\n  };\n\n  Credentials.prototype.set = function (params, source) {\n    if (source === 'session') {\n      return this._setCredentialsFromSession(params);\n    } else if (source === 'federation') {\n      return this._setCredentialsFromFederation(params);\n    } else if (source === 'guest') {\n      return this._setCredentialsForGuest();\n    } else {\n      logger.debug('no source specified for setting credentials');\n      return Promise.reject('invalid source');\n    }\n  };\n\n  Credentials.prototype.clear = function () {\n    return __awaiter(this, void 0, void 0, function () {\n      var _a, identityPoolId, region, credentials;\n\n      return __generator(this, function (_b) {\n        switch (_b.label) {\n          case 0:\n            _a = this._config, identityPoolId = _a.identityPoolId, region = _a.region;\n\n            if (identityPoolId) {\n              credentials = new AWS.CognitoIdentityCredentials({\n                IdentityPoolId: identityPoolId\n              }, {\n                region: region\n              });\n              credentials.clearCachedId();\n            }\n\n            this._credentials = null;\n            this._credentials_source = null;\n\n            this._storage.removeItem('aws-amplify-federatedInfo');\n\n            if (!(Amplify.Cache && typeof Amplify.Cache.setItem === 'function')) return [3\n            /*break*/\n            , 2];\n            return [4\n            /*yield*/\n            , Amplify.Cache.removeItem('federatedInfo')];\n\n          case 1:\n            _b.sent();\n\n            return [3\n            /*break*/\n            , 3];\n\n          case 2:\n            logger.debug('No Cache module registered in Amplify');\n            _b.label = 3;\n\n          case 3:\n            return [2\n            /*return*/\n            ];\n        }\n      });\n    });\n  };\n  /**\n   * Compact version of credentials\n   * @param {Object} credentials\n   * @return {Object} - Credentials\n   */\n\n\n  Credentials.prototype.shear = function (credentials) {\n    return {\n      accessKeyId: credentials.accessKeyId,\n      sessionToken: credentials.sessionToken,\n      secretAccessKey: credentials.secretAccessKey,\n      identityId: credentials.identityId,\n      authenticated: credentials.authenticated\n    };\n  };\n\n  return Credentials;\n}();\n\nexport { Credentials };\nvar instance = new Credentials(null);\nexport default instance;","/*\n * Copyright 2017-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n *     http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nimport JS from '../JS';\nimport MemoryStorage from '../StorageHelper';\nvar Linking = {};\nvar AppState = {\n  addEventListener: function addEventListener(action, handler) {\n    return;\n  }\n}; // if not in react native, just use local storage\n\nvar AsyncStorage = JS.browserOrNode().isBrowser ? new MemoryStorage().getStorage() : undefined;\nexport { Linking, AppState, AsyncStorage };","/*\n * Copyright 2017-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n *     http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nvar packageInfo = require('../../package.json');\n\nvar Platform = {\n  userAgent: \"aws-amplify/\" + packageInfo.version + \" js\",\n  product: '',\n  navigator: null,\n  isReactNative: false\n};\n\nif (typeof navigator !== 'undefined' && navigator.product) {\n  Platform.product = navigator.product || '';\n  Platform.navigator = navigator || null;\n\n  switch (navigator.product) {\n    case 'ReactNative':\n      Platform.userAgent = \"aws-amplify/\" + packageInfo.version + \" react-native\";\n      Platform.isReactNative = true;\n      break;\n\n    default:\n      Platform.userAgent = \"aws-amplify/\" + packageInfo.version + \" js\";\n      Platform.isReactNative = false;\n      break;\n  }\n}\n\nexport default Platform;","/**\n * Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n *     http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nimport { ConsoleLogger as Logger } from '../Logger';\nimport JS from '../JS';\nimport Amplify from '../Amplify';\n/**\n * Provides a means to registering a service worker in the browser\n * and communicating with it via postMessage events.\n * https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API/\n *\n * postMessage events are currently not supported in all browsers. See:\n * https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API\n *\n * At the minmum this class will register the service worker and listen\n * and attempt to dispatch messages on state change and record analytics\n * events based on the service worker lifecycle.\n */\n\nvar ServiceWorkerClass =\n/** @class */\nfunction () {\n  function ServiceWorkerClass() {\n    // The AWS Amplify logger\n    this._logger = new Logger('ServiceWorker');\n  }\n\n  Object.defineProperty(ServiceWorkerClass.prototype, \"serviceWorker\", {\n    /**\n     * Get the currently active service worker\n     */\n    get: function get() {\n      return this._serviceWorker;\n    },\n    enumerable: true,\n    configurable: true\n  });\n  /**\n   * Register the service-worker.js file in the browser\n   * Make sure the service-worker.js is part of the build\n   * for example with Angular, modify the angular-cli.json file\n   * and add to \"assets\" array \"service-worker.js\"\n   * @param {string} - (optional) Service worker file. Defaults to \"/service-worker.js\"\n   * @param {string} - (optional) The service worker scope. Defaults to \"/\"\n   *  - API Doc: https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorkerContainer/register\n   * @returns {Promise}\n   *\t- resolve(ServiceWorkerRegistration)\n   *\t- reject(Error)\n   **/\n\n  ServiceWorkerClass.prototype.register = function (filePath, scope) {\n    var _this = this;\n\n    if (filePath === void 0) {\n      filePath = '/service-worker.js';\n    }\n\n    if (scope === void 0) {\n      scope = '/';\n    }\n\n    this._logger.debug(\"registering \" + filePath);\n\n    this._logger.debug(\"registering service worker with scope \" + scope);\n\n    return new Promise(function (resolve, reject) {\n      if (navigator && 'serviceWorker' in navigator) {\n        navigator.serviceWorker.register(filePath, {\n          scope: scope\n        }).then(function (registration) {\n          if (registration.installing) {\n            _this._serviceWorker = registration.installing;\n          } else if (registration.waiting) {\n            _this._serviceWorker = registration.waiting;\n          } else if (registration.active) {\n            _this._serviceWorker = registration.active;\n          }\n\n          _this._registration = registration;\n\n          _this._setupListeners();\n\n          _this._logger.debug(\"Service Worker Registration Success: \" + registration);\n\n          return resolve(registration);\n        }).catch(function (error) {\n          _this._logger.debug(\"Service Worker Registration Failed \" + error);\n\n          return reject(error);\n        });\n      } else {\n        return reject(new Error('Service Worker not available'));\n      }\n    });\n  };\n  /**\n   * Enable web push notifications. If not subscribed, a new subscription will\n   * be created and registered.\n   * \tTest Push Server: https://web-push-codelab.glitch.me/\n   * \tPush Server Libraries: https://github.com/web-push-libs/\n   * \tAPI Doc: https://developers.google.com/web/fundamentals/codelabs/push-notifications/\n   * @param publicKey\n   * @returns {Promise}\n   * \t- resolve(PushSubscription)\n   *  - reject(Error)\n   */\n\n\n  ServiceWorkerClass.prototype.enablePush = function (publicKey) {\n    var _this = this;\n\n    if (!this._registration) throw new Error('Service Worker not registered');\n    this._publicKey = publicKey;\n    return new Promise(function (resolve, reject) {\n      if (JS.browserOrNode().isBrowser) {\n        _this._registration.pushManager.getSubscription().then(function (subscription) {\n          if (subscription) {\n            _this._subscription = subscription;\n\n            _this._logger.debug(\"User is subscribed to push: \" + JSON.stringify(subscription));\n\n            resolve(subscription);\n          } else {\n            _this._logger.debug(\"User is NOT subscribed to push\");\n\n            return _this._registration.pushManager.subscribe({\n              userVisibleOnly: true,\n              applicationServerKey: _this._urlB64ToUint8Array(publicKey)\n            }).then(function (subscription) {\n              _this._subscription = subscription;\n\n              _this._logger.debug(\"User subscribed: \" + JSON.stringify(subscription));\n\n              resolve(subscription);\n            }).catch(function (error) {\n              _this._logger.error(error);\n            });\n          }\n        });\n      } else {\n        return reject(new Error('Service Worker not available'));\n      }\n    });\n  };\n  /**\n   * Convert a base64 encoded string to a Uint8 array for the push server key\n   * @param base64String\n   */\n\n\n  ServiceWorkerClass.prototype._urlB64ToUint8Array = function (base64String) {\n    var padding = '='.repeat((4 - base64String.length % 4) % 4);\n    var base64 = (base64String + padding).replace(/\\-/g, '+').replace(/_/g, '/');\n    var rawData = window.atob(base64);\n    var outputArray = new Uint8Array(rawData.length);\n\n    for (var i = 0; i < rawData.length; ++i) {\n      outputArray[i] = rawData.charCodeAt(i);\n    }\n\n    return outputArray;\n  };\n  /**\n   * Send a message to the service worker. The service worker needs\n   * to implement `self.addEventListener('message') to handle the\n   * message. This ***currently*** does not work in Safari or IE.\n   * @param {object | string} - An arbitrary JSON object or string message to send to the service worker\n   *\t- see: https://developer.mozilla.org/en-US/docs/Web/API/Transferable\n   * @returns {Promise}\n   **/\n\n\n  ServiceWorkerClass.prototype.send = function (message) {\n    if (this._serviceWorker) {\n      this._serviceWorker.postMessage(typeof message === 'object' ? JSON.stringify(message) : message);\n    }\n  };\n  /**\n   * Listen for service worker state change and message events\n   * https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorker/state\n   **/\n\n\n  ServiceWorkerClass.prototype._setupListeners = function () {\n    var _this = this;\n\n    this._serviceWorker.addEventListener('statechange', function (event) {\n      var currentState = _this._serviceWorker.state;\n\n      _this._logger.debug(\"ServiceWorker statechange: \" + currentState);\n\n      if (Amplify.Analytics && typeof Amplify.Analytics.record === 'function') {\n        Amplify.Analytics.record({\n          name: 'ServiceWorker',\n          attributes: {\n            state: currentState\n          }\n        });\n      }\n    });\n\n    this._serviceWorker.addEventListener('message', function (event) {\n      _this._logger.debug(\"ServiceWorker message event: \" + event);\n    });\n  };\n\n  return ServiceWorkerClass;\n}();\n\nexport default ServiceWorkerClass;","/*\n * Copyright 2017-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n *     http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nimport { AWS } from './Facet';\nimport { ConsoleLogger as Logger } from './Logger';\nimport Amplify from './Amplify';\nexport * from './Facet';\nexport { default as ClientDevice } from './ClientDevice';\nexport { ConsoleLogger, ConsoleLogger as Logger } from './Logger';\nexport * from './Errors';\nexport { default as Hub } from './Hub';\nexport { default as I18n } from './I18n';\nexport { default as JS } from './JS';\nexport { default as Signer } from './Signer';\nexport { default as Parser } from './Parser';\nexport { FacebookOAuth, GoogleOAuth } from './OAuthHelper';\nexport * from './RNComponents';\nexport { default as Credentials } from './Credentials';\nexport { default as ServiceWorker } from './ServiceWorker';\nexport { default as StorageHelper, MemoryStorage } from './StorageHelper';\nexport { default as Platform } from './Platform';\nimport Platform from './Platform';\nexport var Constants = {\n  userAgent: Platform.userAgent\n};\nexport default Amplify;\nvar logger = new Logger('Core');\n\nif (AWS['util']) {\n  AWS['util'].userAgent = function () {\n    return Constants.userAgent;\n  };\n} else if (AWS.config) {\n  AWS.config.update({\n    customUserAgent: Constants.userAgent\n  });\n} else {\n  logger.warn('No AWS.config');\n}","var AWS = require('../core');\n\nvar util = require('../util');\n\nvar Rest = require('./rest');\n\nfunction populateBody(req) {\n  var input = req.service.api.operations[req.operation].input;\n  var builder = new AWS.XML.Builder();\n  var params = req.params;\n  var payload = input.payload;\n\n  if (payload) {\n    var payloadMember = input.members[payload];\n    params = params[payload];\n    if (params === undefined) return;\n\n    if (payloadMember.type === 'structure') {\n      var rootElement = payloadMember.name;\n      req.httpRequest.body = builder.toXML(params, payloadMember, rootElement, true);\n    } else {\n      // non-xml payload\n      req.httpRequest.body = params;\n    }\n  } else {\n    req.httpRequest.body = builder.toXML(params, input, input.name || input.shape || util.string.upperFirst(req.operation) + 'Request');\n  }\n}\n\nfunction buildRequest(req) {\n  Rest.buildRequest(req); // never send body payload on GET/HEAD\n\n  if (['GET', 'HEAD'].indexOf(req.httpRequest.method) < 0) {\n    populateBody(req);\n  }\n}\n\nfunction extractError(resp) {\n  Rest.extractError(resp);\n  var data;\n\n  try {\n    data = new AWS.XML.Parser().parse(resp.httpResponse.body.toString());\n  } catch (e) {\n    data = {\n      Code: resp.httpResponse.statusCode,\n      Message: resp.httpResponse.statusMessage\n    };\n  }\n\n  if (data.Errors) data = data.Errors;\n  if (data.Error) data = data.Error;\n\n  if (data.Code) {\n    resp.error = util.error(new Error(), {\n      code: data.Code,\n      message: data.Message\n    });\n  } else {\n    resp.error = util.error(new Error(), {\n      code: resp.httpResponse.statusCode,\n      message: null\n    });\n  }\n}\n\nfunction extractData(resp) {\n  Rest.extractData(resp);\n  var parser;\n  var req = resp.request;\n  var body = resp.httpResponse.body;\n  var operation = req.service.api.operations[req.operation];\n  var output = operation.output;\n  var hasEventOutput = operation.hasEventOutput;\n  var payload = output.payload;\n\n  if (payload) {\n    var payloadMember = output.members[payload];\n\n    if (payloadMember.isEventStream) {\n      parser = new AWS.XML.Parser();\n      resp.data[payload] = util.createEventStream(AWS.HttpClient.streamsApiVersion === 2 ? resp.httpResponse.stream : resp.httpResponse.body, parser, payloadMember);\n    } else if (payloadMember.type === 'structure') {\n      parser = new AWS.XML.Parser();\n      resp.data[payload] = parser.parse(body.toString(), payloadMember);\n    } else if (payloadMember.type === 'binary' || payloadMember.isStreaming) {\n      resp.data[payload] = body;\n    } else {\n      resp.data[payload] = payloadMember.toType(body);\n    }\n  } else if (body.length > 0) {\n    parser = new AWS.XML.Parser();\n    var data = parser.parse(body.toString(), output);\n    util.update(resp.data, data);\n  }\n}\n/**\n * @api private\n */\n\n\nmodule.exports = {\n  buildRequest: buildRequest,\n  extractError: extractError,\n  extractData: extractData\n};","/**\n * Copyright 2012-2013 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You\n * may not use this file except in compliance with the License. A copy of\n * the License is located at\n *\n *     http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is\n * distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF\n * ANY KIND, either express or implied. See the License for the specific\n * language governing permissions and limitations under the License.\n */\nvar AWS = require('./core');\n\nvar inherit = AWS.util.inherit;\n\nvar jmespath = require('jmespath');\n/**\n * @api private\n */\n\n\nfunction CHECK_ACCEPTORS(resp) {\n  var waiter = resp.request._waiter;\n  var acceptors = waiter.config.acceptors;\n  var acceptorMatched = false;\n  var state = 'retry';\n  acceptors.forEach(function (acceptor) {\n    if (!acceptorMatched) {\n      var matcher = waiter.matchers[acceptor.matcher];\n\n      if (matcher && matcher(resp, acceptor.expected, acceptor.argument)) {\n        acceptorMatched = true;\n        state = acceptor.state;\n      }\n    }\n  });\n  if (!acceptorMatched && resp.error) state = 'failure';\n\n  if (state === 'success') {\n    waiter.setSuccess(resp);\n  } else {\n    waiter.setError(resp, state === 'retry');\n  }\n}\n/**\n * @api private\n */\n\n\nAWS.ResourceWaiter = inherit({\n  /**\n   * Waits for a given state on a service object\n   * @param service [Service] the service object to wait on\n   * @param state [String] the state (defined in waiter configuration) to wait\n   *   for.\n   * @example Create a waiter for running EC2 instances\n   *   var ec2 = new AWS.EC2;\n   *   var waiter = new AWS.ResourceWaiter(ec2, 'instanceRunning');\n   */\n  constructor: function constructor(service, state) {\n    this.service = service;\n    this.state = state;\n    this.loadWaiterConfig(this.state);\n  },\n  service: null,\n  state: null,\n  config: null,\n  matchers: {\n    path: function path(resp, expected, argument) {\n      try {\n        var result = jmespath.search(resp.data, argument);\n      } catch (err) {\n        return false;\n      }\n\n      return jmespath.strictDeepEqual(result, expected);\n    },\n    pathAll: function pathAll(resp, expected, argument) {\n      try {\n        var results = jmespath.search(resp.data, argument);\n      } catch (err) {\n        return false;\n      }\n\n      if (!Array.isArray(results)) results = [results];\n      var numResults = results.length;\n      if (!numResults) return false;\n\n      for (var ind = 0; ind < numResults; ind++) {\n        if (!jmespath.strictDeepEqual(results[ind], expected)) {\n          return false;\n        }\n      }\n\n      return true;\n    },\n    pathAny: function pathAny(resp, expected, argument) {\n      try {\n        var results = jmespath.search(resp.data, argument);\n      } catch (err) {\n        return false;\n      }\n\n      if (!Array.isArray(results)) results = [results];\n      var numResults = results.length;\n\n      for (var ind = 0; ind < numResults; ind++) {\n        if (jmespath.strictDeepEqual(results[ind], expected)) {\n          return true;\n        }\n      }\n\n      return false;\n    },\n    status: function status(resp, expected) {\n      var statusCode = resp.httpResponse.statusCode;\n      return typeof statusCode === 'number' && statusCode === expected;\n    },\n    error: function error(resp, expected) {\n      if (typeof expected === 'string' && resp.error) {\n        return expected === resp.error.code;\n      } // if expected is not string, can be boolean indicating presence of error\n\n\n      return expected === !!resp.error;\n    }\n  },\n  listeners: new AWS.SequentialExecutor().addNamedListeners(function (add) {\n    add('RETRY_CHECK', 'retry', function (resp) {\n      var waiter = resp.request._waiter;\n\n      if (resp.error && resp.error.code === 'ResourceNotReady') {\n        resp.error.retryDelay = (waiter.config.delay || 0) * 1000;\n      }\n    });\n    add('CHECK_OUTPUT', 'extractData', CHECK_ACCEPTORS);\n    add('CHECK_ERROR', 'extractError', CHECK_ACCEPTORS);\n  }),\n\n  /**\n   * @return [AWS.Request]\n   */\n  wait: function wait(params, callback) {\n    if (typeof params === 'function') {\n      callback = params;\n      params = undefined;\n    }\n\n    if (params && params.$waiter) {\n      params = AWS.util.copy(params);\n\n      if (typeof params.$waiter.delay === 'number') {\n        this.config.delay = params.$waiter.delay;\n      }\n\n      if (typeof params.$waiter.maxAttempts === 'number') {\n        this.config.maxAttempts = params.$waiter.maxAttempts;\n      }\n\n      delete params.$waiter;\n    }\n\n    var request = this.service.makeRequest(this.config.operation, params);\n    request._waiter = this;\n    request.response.maxRetries = this.config.maxAttempts;\n    request.addListeners(this.listeners);\n    if (callback) request.send(callback);\n    return request;\n  },\n  setSuccess: function setSuccess(resp) {\n    resp.error = null;\n    resp.data = resp.data || {};\n    resp.request.removeAllListeners('extractData');\n  },\n  setError: function setError(resp, retryable) {\n    resp.data = null;\n    resp.error = AWS.util.error(resp.error || new Error(), {\n      code: 'ResourceNotReady',\n      message: 'Resource is not in the state ' + this.state,\n      retryable: retryable\n    });\n  },\n\n  /**\n   * Loads waiter configuration from API configuration\n   *\n   * @api private\n   */\n  loadWaiterConfig: function loadWaiterConfig(state) {\n    if (!this.service.api.waiters[state]) {\n      throw new AWS.util.error(new Error(), {\n        code: 'StateNotFoundError',\n        message: 'State ' + state + ' not found.'\n      });\n    }\n\n    this.config = AWS.util.copy(this.service.api.waiters[state]);\n  }\n});","'use strict';\n\nexports.byteLength = byteLength;\nexports.toByteArray = toByteArray;\nexports.fromByteArray = fromByteArray;\nvar lookup = [];\nvar revLookup = [];\nvar Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array;\nvar code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\n\nfor (var i = 0, len = code.length; i < len; ++i) {\n  lookup[i] = code[i];\n  revLookup[code.charCodeAt(i)] = i;\n} // Support decoding URL-safe base64 strings, as Node.js does.\n// See: https://en.wikipedia.org/wiki/Base64#URL_applications\n\n\nrevLookup['-'.charCodeAt(0)] = 62;\nrevLookup['_'.charCodeAt(0)] = 63;\n\nfunction getLens(b64) {\n  var len = b64.length;\n\n  if (len % 4 > 0) {\n    throw new Error('Invalid string. Length must be a multiple of 4');\n  } // Trim off extra bytes after placeholder bytes are found\n  // See: https://github.com/beatgammit/base64-js/issues/42\n\n\n  var validLen = b64.indexOf('=');\n  if (validLen === -1) validLen = len;\n  var placeHoldersLen = validLen === len ? 0 : 4 - validLen % 4;\n  return [validLen, placeHoldersLen];\n} // base64 is 4/3 + up to two characters of the original data\n\n\nfunction byteLength(b64) {\n  var lens = getLens(b64);\n  var validLen = lens[0];\n  var placeHoldersLen = lens[1];\n  return (validLen + placeHoldersLen) * 3 / 4 - placeHoldersLen;\n}\n\nfunction _byteLength(b64, validLen, placeHoldersLen) {\n  return (validLen + placeHoldersLen) * 3 / 4 - placeHoldersLen;\n}\n\nfunction toByteArray(b64) {\n  var tmp;\n  var lens = getLens(b64);\n  var validLen = lens[0];\n  var placeHoldersLen = lens[1];\n  var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen));\n  var curByte = 0; // if there are placeholders, only get up to the last complete 4 chars\n\n  var len = placeHoldersLen > 0 ? validLen - 4 : validLen;\n  var i;\n\n  for (i = 0; i < len; i += 4) {\n    tmp = revLookup[b64.charCodeAt(i)] << 18 | revLookup[b64.charCodeAt(i + 1)] << 12 | revLookup[b64.charCodeAt(i + 2)] << 6 | revLookup[b64.charCodeAt(i + 3)];\n    arr[curByte++] = tmp >> 16 & 0xFF;\n    arr[curByte++] = tmp >> 8 & 0xFF;\n    arr[curByte++] = tmp & 0xFF;\n  }\n\n  if (placeHoldersLen === 2) {\n    tmp = revLookup[b64.charCodeAt(i)] << 2 | revLookup[b64.charCodeAt(i + 1)] >> 4;\n    arr[curByte++] = tmp & 0xFF;\n  }\n\n  if (placeHoldersLen === 1) {\n    tmp = revLookup[b64.charCodeAt(i)] << 10 | revLookup[b64.charCodeAt(i + 1)] << 4 | revLookup[b64.charCodeAt(i + 2)] >> 2;\n    arr[curByte++] = tmp >> 8 & 0xFF;\n    arr[curByte++] = tmp & 0xFF;\n  }\n\n  return arr;\n}\n\nfunction tripletToBase64(num) {\n  return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F];\n}\n\nfunction encodeChunk(uint8, start, end) {\n  var tmp;\n  var output = [];\n\n  for (var i = start; i < end; i += 3) {\n    tmp = (uint8[i] << 16 & 0xFF0000) + (uint8[i + 1] << 8 & 0xFF00) + (uint8[i + 2] & 0xFF);\n    output.push(tripletToBase64(tmp));\n  }\n\n  return output.join('');\n}\n\nfunction fromByteArray(uint8) {\n  var tmp;\n  var len = uint8.length;\n  var extraBytes = len % 3; // if we have 1 byte left, pad 2 bytes\n\n  var parts = [];\n  var maxChunkLength = 16383; // must be multiple of 3\n  // go through the array every three bytes, we'll deal with trailing stuff later\n\n  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {\n    parts.push(encodeChunk(uint8, i, i + maxChunkLength > len2 ? len2 : i + maxChunkLength));\n  } // pad the end with zeros, but make sure to not forget the extra bytes\n\n\n  if (extraBytes === 1) {\n    tmp = uint8[len - 1];\n    parts.push(lookup[tmp >> 2] + lookup[tmp << 4 & 0x3F] + '==');\n  } else if (extraBytes === 2) {\n    tmp = (uint8[len - 2] << 8) + uint8[len - 1];\n    parts.push(lookup[tmp >> 10] + lookup[tmp >> 4 & 0x3F] + lookup[tmp << 2 & 0x3F] + '=');\n  }\n\n  return parts.join('');\n}","var util = require('../util');\n\nvar Rest = require('./rest');\n\nvar Json = require('./json');\n\nvar JsonBuilder = require('../json/builder');\n\nvar JsonParser = require('../json/parser');\n\nfunction populateBody(req) {\n  var builder = new JsonBuilder();\n  var input = req.service.api.operations[req.operation].input;\n\n  if (input.payload) {\n    var params = {};\n    var payloadShape = input.members[input.payload];\n    params = req.params[input.payload];\n    if (params === undefined) return;\n\n    if (payloadShape.type === 'structure') {\n      req.httpRequest.body = builder.build(params, payloadShape);\n      applyContentTypeHeader(req);\n    } else {\n      // non-JSON payload\n      req.httpRequest.body = params;\n\n      if (payloadShape.type === 'binary' || payloadShape.isStreaming) {\n        applyContentTypeHeader(req, true);\n      }\n    }\n  } else {\n    var body = builder.build(req.params, input);\n\n    if (body !== '{}' || req.httpRequest.method !== 'GET') {\n      //don't send empty body for GET method\n      req.httpRequest.body = body;\n    }\n\n    applyContentTypeHeader(req);\n  }\n}\n\nfunction applyContentTypeHeader(req, isBinary) {\n  var operation = req.service.api.operations[req.operation];\n  var input = operation.input;\n\n  if (!req.httpRequest.headers['Content-Type']) {\n    var type = isBinary ? 'binary/octet-stream' : 'application/json';\n    req.httpRequest.headers['Content-Type'] = type;\n  }\n}\n\nfunction buildRequest(req) {\n  Rest.buildRequest(req); // never send body payload on HEAD/DELETE\n\n  if (['HEAD', 'DELETE'].indexOf(req.httpRequest.method) < 0) {\n    populateBody(req);\n  }\n}\n\nfunction extractError(resp) {\n  Json.extractError(resp);\n}\n\nfunction extractData(resp) {\n  Rest.extractData(resp);\n  var req = resp.request;\n  var operation = req.service.api.operations[req.operation];\n  var rules = req.service.api.operations[req.operation].output || {};\n  var parser;\n  var hasEventOutput = operation.hasEventOutput;\n\n  if (rules.payload) {\n    var payloadMember = rules.members[rules.payload];\n    var body = resp.httpResponse.body;\n\n    if (payloadMember.isEventStream) {\n      parser = new JsonParser();\n      resp.data[payload] = util.createEventStream(AWS.HttpClient.streamsApiVersion === 2 ? resp.httpResponse.stream : body, parser, payloadMember);\n    } else if (payloadMember.type === 'structure' || payloadMember.type === 'list') {\n      var parser = new JsonParser();\n      resp.data[rules.payload] = parser.parse(body, payloadMember);\n    } else if (payloadMember.type === 'binary' || payloadMember.isStreaming) {\n      resp.data[rules.payload] = body;\n    } else {\n      resp.data[rules.payload] = payloadMember.toType(body);\n    }\n  } else {\n    var data = resp.data;\n    Json.extractData(resp);\n    resp.data = util.merge(data, resp.data);\n  }\n}\n/**\n * @api private\n */\n\n\nmodule.exports = {\n  buildRequest: buildRequest,\n  extractError: extractError,\n  extractData: extractData\n};","/*\n * Copyright 2017-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\"). You may not use this file except in compliance with\n * the License. A copy of the License is located at\n *\n *     http://aws.amazon.com/apache2.0/\n *\n * or in the \"license\" file accompanying this file. This file is distributed on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR\n * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions\n * and limitations under the License.\n */\nvar MIME_MAP = [{\n  type: 'text/plain',\n  ext: 'txt'\n}, {\n  type: 'text/html',\n  ext: 'html'\n}, {\n  type: 'text/javascript',\n  ext: 'js'\n}, {\n  type: 'text/css',\n  ext: 'css'\n}, {\n  type: 'text/csv',\n  ext: 'csv'\n}, {\n  type: 'text/yaml',\n  ext: 'yml'\n}, {\n  type: 'text/yaml',\n  ext: 'yaml'\n}, {\n  type: 'text/calendar',\n  ext: 'ics'\n}, {\n  type: 'text/calendar',\n  ext: 'ical'\n}, {\n  type: 'image/png',\n  ext: 'png'\n}, {\n  type: 'image/gif',\n  ext: 'gif'\n}, {\n  type: 'image/jpeg',\n  ext: 'jpg'\n}, {\n  type: 'image/jpeg',\n  ext: 'jpeg'\n}, {\n  type: 'image/bmp',\n  ext: 'bmp'\n}, {\n  type: 'image/x-icon',\n  ext: 'ico'\n}, {\n  type: 'image/tiff',\n  ext: 'tif'\n}, {\n  type: 'image/tiff',\n  ext: 'tiff'\n}, {\n  type: 'image/svg+xml',\n  ext: 'svg'\n}, {\n  type: 'application/json',\n  ext: 'json'\n}, {\n  type: 'application/xml',\n  ext: 'xml'\n}, {\n  type: 'application/x-sh',\n  ext: 'sh'\n}, {\n  type: 'application/zip',\n  ext: 'zip'\n}, {\n  type: 'application/x-rar-compressed',\n  ext: 'rar'\n}, {\n  type: 'application/x-tar',\n  ext: 'tar'\n}, {\n  type: 'application/x-bzip',\n  ext: 'bz'\n}, {\n  type: 'application/x-bzip2',\n  ext: 'bz2'\n}, {\n  type: 'application/pdf',\n  ext: 'pdf'\n}, {\n  type: 'application/java-archive',\n  ext: 'jar'\n}, {\n  type: 'application/msword',\n  ext: 'doc'\n}, {\n  type: 'application/vnd.ms-excel',\n  ext: 'xls'\n}, {\n  type: 'application/vnd.ms-excel',\n  ext: 'xlsx'\n}, {\n  type: 'message/rfc822',\n  ext: 'eml'\n}];\n\nvar JS =\n/** @class */\nfunction () {\n  function JS() {}\n\n  JS.isEmpty = function (obj) {\n    return Object.keys(obj).length === 0;\n  };\n\n  JS.sortByField = function (list, field, dir) {\n    if (!list || !list.sort) {\n      return false;\n    }\n\n    var dirX = dir && dir === 'desc' ? -1 : 1;\n    list.sort(function (a, b) {\n      var a_val = a[field];\n      var b_val = b[field];\n\n      if (typeof b_val === 'undefined') {\n        return typeof a_val === 'undefined' ? 0 : 1 * dirX;\n      }\n\n      if (typeof a_val === 'undefined') {\n        return -1 * dirX;\n      }\n\n      if (a_val < b_val) {\n        return -1 * dirX;\n      }\n\n      if (a_val > b_val) {\n        return 1 * dirX;\n      }\n\n      return 0;\n    });\n    return true;\n  };\n\n  JS.objectLessAttributes = function (obj, less) {\n    var ret = Object.assign({}, obj);\n\n    if (less) {\n      if (typeof less === 'string') {\n        delete ret[less];\n      } else {\n        less.forEach(function (attr) {\n          delete ret[attr];\n        });\n      }\n    }\n\n    return ret;\n  };\n\n  JS.filenameToContentType = function (filename, defVal) {\n    if (defVal === void 0) {\n      defVal = 'application/octet-stream';\n    }\n\n    var name = filename.toLowerCase();\n    var filtered = MIME_MAP.filter(function (mime) {\n      return name.endsWith('.' + mime.ext);\n    });\n    return filtered.length > 0 ? filtered[0].type : defVal;\n  };\n\n  JS.isTextFile = function (contentType) {\n    var type = contentType.toLowerCase();\n\n    if (type.startsWith('text/')) {\n      return true;\n    }\n\n    return 'application/json' === type || 'application/xml' === type || 'application/sh' === type;\n  };\n  /**\n   * generate random string\n   */\n\n\n  JS.generateRandomString = function () {\n    var result = '';\n    var chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';\n\n    for (var i = 32; i > 0; i -= 1) {\n      result += chars[Math.floor(Math.random() * chars.length)];\n    }\n\n    return result;\n  };\n\n  JS.makeQuerablePromise = function (promise) {\n    if (promise.isResolved) return promise;\n    var isPending = true;\n    var isRejected = false;\n    var isFullfilled = false;\n    var result = promise.then(function (data) {\n      isFullfilled = true;\n      isPending = false;\n      return data;\n    }, function (e) {\n      isRejected = true;\n      isPending = false;\n      throw e;\n    });\n\n    result.isFullfilled = function () {\n      return isFullfilled;\n    };\n\n    result.isPending = function () {\n      return isPending;\n    };\n\n    result.isRejected = function () {\n      return isRejected;\n    };\n\n    return result;\n  };\n\n  JS.browserOrNode = function () {\n    var isBrowser = typeof window !== 'undefined' && typeof window.document !== 'undefined';\n    var isNode = typeof process !== 'undefined' && process.versions != null && process.versions.node != null;\n    return {\n      isBrowser: isBrowser,\n      isNode: isNode\n    };\n  };\n  /**\n   * transfer the first letter of the keys to lowercase\n   * @param {Object} obj - the object need to be transferred\n   * @param {Array} whiteListForItself - whitelist itself from being transferred\n   * @param {Array} whiteListForChildren - whitelist its children keys from being transferred\n   */\n\n\n  JS.transferKeyToLowerCase = function (obj, whiteListForItself, whiteListForChildren) {\n    if (whiteListForItself === void 0) {\n      whiteListForItself = [];\n    }\n\n    if (whiteListForChildren === void 0) {\n      whiteListForChildren = [];\n    }\n\n    if (!JS.isStrictObject(obj)) return obj;\n    var ret = {};\n\n    for (var key in obj) {\n      if (obj.hasOwnProperty(key)) {\n        var transferedKey = whiteListForItself.includes(key) ? key : key[0].toLowerCase() + key.slice(1);\n        ret[transferedKey] = whiteListForChildren.includes(key) ? obj[key] : JS.transferKeyToLowerCase(obj[key], whiteListForItself, whiteListForChildren);\n      }\n    }\n\n    return ret;\n  };\n  /**\n   * transfer the first letter of the keys to lowercase\n   * @param {Object} obj - the object need to be transferred\n   * @param {Array} whiteListForItself - whitelist itself from being transferred\n   * @param {Array} whiteListForChildren - whitelist its children keys from being transferred\n   */\n\n\n  JS.transferKeyToUpperCase = function (obj, whiteListForItself, whiteListForChildren) {\n    if (whiteListForItself === void 0) {\n      whiteListForItself = [];\n    }\n\n    if (whiteListForChildren === void 0) {\n      whiteListForChildren = [];\n    }\n\n    if (!JS.isStrictObject(obj)) return obj;\n    var ret = {};\n\n    for (var key in obj) {\n      if (obj.hasOwnProperty(key)) {\n        var transferedKey = whiteListForItself.includes(key) ? key : key[0].toUpperCase() + key.slice(1);\n        ret[transferedKey] = whiteListForChildren.includes(key) ? obj[key] : JS.transferKeyToUpperCase(obj[key], whiteListForItself, whiteListForChildren);\n      }\n    }\n\n    return ret;\n  };\n  /**\n   * Return true if the object is a strict object\n   * which means it's not Array, Function, Number, String, Boolean or Null\n   * @param obj the Object\n   */\n\n\n  JS.isStrictObject = function (obj) {\n    return obj instanceof Object && !(obj instanceof Array) && !(obj instanceof Function) && !(obj instanceof Number) && !(obj instanceof String) && !(obj instanceof Boolean);\n  };\n\n  return JS;\n}();\n\nexport default JS;","var hashUtils = require('./browserHashUtils');\n\nvar Buffer = require('buffer/').Buffer;\n\nvar BLOCK_SIZE = 64;\nvar DIGEST_LENGTH = 16;\nvar INIT = [0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476];\n/**\n * @api private\n */\n\nfunction Md5() {\n  this.state = [0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476];\n  this.buffer = new DataView(new ArrayBuffer(BLOCK_SIZE));\n  this.bufferLength = 0;\n  this.bytesHashed = 0;\n  this.finished = false;\n}\n/**\n * @api private\n */\n\n\nmodule.exports = exports = Md5;\nMd5.BLOCK_SIZE = BLOCK_SIZE;\n\nMd5.prototype.update = function (sourceData) {\n  if (hashUtils.isEmptyData(sourceData)) {\n    return this;\n  } else if (this.finished) {\n    throw new Error('Attempted to update an already finished hash.');\n  }\n\n  var data = hashUtils.convertToBuffer(sourceData);\n  var position = 0;\n  var byteLength = data.byteLength;\n  this.bytesHashed += byteLength;\n\n  while (byteLength > 0) {\n    this.buffer.setUint8(this.bufferLength++, data[position++]);\n    byteLength--;\n\n    if (this.bufferLength === BLOCK_SIZE) {\n      this.hashBuffer();\n      this.bufferLength = 0;\n    }\n  }\n\n  return this;\n};\n\nMd5.prototype.digest = function (encoding) {\n  if (!this.finished) {\n    var _a = this,\n        buffer = _a.buffer,\n        undecoratedLength = _a.bufferLength,\n        bytesHashed = _a.bytesHashed;\n\n    var bitsHashed = bytesHashed * 8;\n    buffer.setUint8(this.bufferLength++, 128); // Ensure the final block has enough room for the hashed length\n\n    if (undecoratedLength % BLOCK_SIZE >= BLOCK_SIZE - 8) {\n      for (var i = this.bufferLength; i < BLOCK_SIZE; i++) {\n        buffer.setUint8(i, 0);\n      }\n\n      this.hashBuffer();\n      this.bufferLength = 0;\n    }\n\n    for (var i = this.bufferLength; i < BLOCK_SIZE - 8; i++) {\n      buffer.setUint8(i, 0);\n    }\n\n    buffer.setUint32(BLOCK_SIZE - 8, bitsHashed >>> 0, true);\n    buffer.setUint32(BLOCK_SIZE - 4, Math.floor(bitsHashed / 0x100000000), true);\n    this.hashBuffer();\n    this.finished = true;\n  }\n\n  var out = new DataView(new ArrayBuffer(DIGEST_LENGTH));\n\n  for (var i = 0; i < 4; i++) {\n    out.setUint32(i * 4, this.state[i], true);\n  }\n\n  var buff = new Buffer(out.buffer, out.byteOffset, out.byteLength);\n  return encoding ? buff.toString(encoding) : buff;\n};\n\nMd5.prototype.hashBuffer = function () {\n  var _a = this,\n      buffer = _a.buffer,\n      state = _a.state;\n\n  var a = state[0],\n      b = state[1],\n      c = state[2],\n      d = state[3];\n  a = ff(a, b, c, d, buffer.getUint32(0, true), 7, 0xd76aa478);\n  d = ff(d, a, b, c, buffer.getUint32(4, true), 12, 0xe8c7b756);\n  c = ff(c, d, a, b, buffer.getUint32(8, true), 17, 0x242070db);\n  b = ff(b, c, d, a, buffer.getUint32(12, true), 22, 0xc1bdceee);\n  a = ff(a, b, c, d, buffer.getUint32(16, true), 7, 0xf57c0faf);\n  d = ff(d, a, b, c, buffer.getUint32(20, true), 12, 0x4787c62a);\n  c = ff(c, d, a, b, buffer.getUint32(24, true), 17, 0xa8304613);\n  b = ff(b, c, d, a, buffer.getUint32(28, true), 22, 0xfd469501);\n  a = ff(a, b, c, d, buffer.getUint32(32, true), 7, 0x698098d8);\n  d = ff(d, a, b, c, buffer.getUint32(36, true), 12, 0x8b44f7af);\n  c = ff(c, d, a, b, buffer.getUint32(40, true), 17, 0xffff5bb1);\n  b = ff(b, c, d, a, buffer.getUint32(44, true), 22, 0x895cd7be);\n  a = ff(a, b, c, d, buffer.getUint32(48, true), 7, 0x6b901122);\n  d = ff(d, a, b, c, buffer.getUint32(52, true), 12, 0xfd987193);\n  c = ff(c, d, a, b, buffer.getUint32(56, true), 17, 0xa679438e);\n  b = ff(b, c, d, a, buffer.getUint32(60, true), 22, 0x49b40821);\n  a = gg(a, b, c, d, buffer.getUint32(4, true), 5, 0xf61e2562);\n  d = gg(d, a, b, c, buffer.getUint32(24, true), 9, 0xc040b340);\n  c = gg(c, d, a, b, buffer.getUint32(44, true), 14, 0x265e5a51);\n  b = gg(b, c, d, a, buffer.getUint32(0, true), 20, 0xe9b6c7aa);\n  a = gg(a, b, c, d, buffer.getUint32(20, true), 5, 0xd62f105d);\n  d = gg(d, a, b, c, buffer.getUint32(40, true), 9, 0x02441453);\n  c = gg(c, d, a, b, buffer.getUint32(60, true), 14, 0xd8a1e681);\n  b = gg(b, c, d, a, buffer.getUint32(16, true), 20, 0xe7d3fbc8);\n  a = gg(a, b, c, d, buffer.getUint32(36, true), 5, 0x21e1cde6);\n  d = gg(d, a, b, c, buffer.getUint32(56, true), 9, 0xc33707d6);\n  c = gg(c, d, a, b, buffer.getUint32(12, true), 14, 0xf4d50d87);\n  b = gg(b, c, d, a, buffer.getUint32(32, true), 20, 0x455a14ed);\n  a = gg(a, b, c, d, buffer.getUint32(52, true), 5, 0xa9e3e905);\n  d = gg(d, a, b, c, buffer.getUint32(8, true), 9, 0xfcefa3f8);\n  c = gg(c, d, a, b, buffer.getUint32(28, true), 14, 0x676f02d9);\n  b = gg(b, c, d, a, buffer.getUint32(48, true), 20, 0x8d2a4c8a);\n  a = hh(a, b, c, d, buffer.getUint32(20, true), 4, 0xfffa3942);\n  d = hh(d, a, b, c, buffer.getUint32(32, true), 11, 0x8771f681);\n  c = hh(c, d, a, b, buffer.getUint32(44, true), 16, 0x6d9d6122);\n  b = hh(b, c, d, a, buffer.getUint32(56, true), 23, 0xfde5380c);\n  a = hh(a, b, c, d, buffer.getUint32(4, true), 4, 0xa4beea44);\n  d = hh(d, a, b, c, buffer.getUint32(16, true), 11, 0x4bdecfa9);\n  c = hh(c, d, a, b, buffer.getUint32(28, true), 16, 0xf6bb4b60);\n  b = hh(b, c, d, a, buffer.getUint32(40, true), 23, 0xbebfbc70);\n  a = hh(a, b, c, d, buffer.getUint32(52, true), 4, 0x289b7ec6);\n  d = hh(d, a, b, c, buffer.getUint32(0, true), 11, 0xeaa127fa);\n  c = hh(c, d, a, b, buffer.getUint32(12, true), 16, 0xd4ef3085);\n  b = hh(b, c, d, a, buffer.getUint32(24, true), 23, 0x04881d05);\n  a = hh(a, b, c, d, buffer.getUint32(36, true), 4, 0xd9d4d039);\n  d = hh(d, a, b, c, buffer.getUint32(48, true), 11, 0xe6db99e5);\n  c = hh(c, d, a, b, buffer.getUint32(60, true), 16, 0x1fa27cf8);\n  b = hh(b, c, d, a, buffer.getUint32(8, true), 23, 0xc4ac5665);\n  a = ii(a, b, c, d, buffer.getUint32(0, true), 6, 0xf4292244);\n  d = ii(d, a, b, c, buffer.getUint32(28, true), 10, 0x432aff97);\n  c = ii(c, d, a, b, buffer.getUint32(56, true), 15, 0xab9423a7);\n  b = ii(b, c, d, a, buffer.getUint32(20, true), 21, 0xfc93a039);\n  a = ii(a, b, c, d, buffer.getUint32(48, true), 6, 0x655b59c3);\n  d = ii(d, a, b, c, buffer.getUint32(12, true), 10, 0x8f0ccc92);\n  c = ii(c, d, a, b, buffer.getUint32(40, true), 15, 0xffeff47d);\n  b = ii(b, c, d, a, buffer.getUint32(4, true), 21, 0x85845dd1);\n  a = ii(a, b, c, d, buffer.getUint32(32, true), 6, 0x6fa87e4f);\n  d = ii(d, a, b, c, buffer.getUint32(60, true), 10, 0xfe2ce6e0);\n  c = ii(c, d, a, b, buffer.getUint32(24, true), 15, 0xa3014314);\n  b = ii(b, c, d, a, buffer.getUint32(52, true), 21, 0x4e0811a1);\n  a = ii(a, b, c, d, buffer.getUint32(16, true), 6, 0xf7537e82);\n  d = ii(d, a, b, c, buffer.getUint32(44, true), 10, 0xbd3af235);\n  c = ii(c, d, a, b, buffer.getUint32(8, true), 15, 0x2ad7d2bb);\n  b = ii(b, c, d, a, buffer.getUint32(36, true), 21, 0xeb86d391);\n  state[0] = a + state[0] & 0xFFFFFFFF;\n  state[1] = b + state[1] & 0xFFFFFFFF;\n  state[2] = c + state[2] & 0xFFFFFFFF;\n  state[3] = d + state[3] & 0xFFFFFFFF;\n};\n\nfunction cmn(q, a, b, x, s, t) {\n  a = (a + q & 0xFFFFFFFF) + (x + t & 0xFFFFFFFF) & 0xFFFFFFFF;\n  return (a << s | a >>> 32 - s) + b & 0xFFFFFFFF;\n}\n\nfunction ff(a, b, c, d, x, s, t) {\n  return cmn(b & c | ~b & d, a, b, x, s, t);\n}\n\nfunction gg(a, b, c, d, x, s, t) {\n  return cmn(b & d | c & ~d, a, b, x, s, t);\n}\n\nfunction hh(a, b, c, d, x, s, t) {\n  return cmn(b ^ c ^ d, a, b, x, s, t);\n}\n\nfunction ii(a, b, c, d, x, s, t) {\n  return cmn(c ^ (b | ~d), a, b, x, s, t);\n}","var util = require('./util'); // browser specific modules\n\n\nutil.crypto.lib = require('./browserCryptoLib');\nutil.Buffer = require('buffer/').Buffer;\nutil.url = require('url/');\nutil.querystring = require('querystring/');\nutil.realClock = require('./realclock/browserClock');\nutil.environment = 'js';\nutil.createEventStream = require('./event-stream/buffered-create-event-stream').createEventStream;\n\nutil.isBrowser = function () {\n  return true;\n};\n\nutil.isNode = function () {\n  return false;\n};\n\nvar AWS = require('./core');\n/**\n * @api private\n */\n\n\nmodule.exports = AWS;\n\nrequire('./credentials');\n\nrequire('./credentials/credential_provider_chain');\n\nrequire('./credentials/temporary_credentials');\n\nrequire('./credentials/chainable_temporary_credentials');\n\nrequire('./credentials/web_identity_credentials');\n\nrequire('./credentials/cognito_identity_credentials');\n\nrequire('./credentials/saml_credentials'); // Load the DOMParser XML parser\n\n\nAWS.XML.Parser = require('./xml/browser_parser'); // Load the XHR HttpClient\n\nrequire('./http/xhr');\n\nif (typeof process === 'undefined') {\n  var process = {\n    browser: true\n  };\n}",";\n\n(function (root, factory) {\n  if (typeof exports === \"object\") {\n    // CommonJS\n    module.exports = exports = factory();\n  } else if (typeof define === \"function\" && define.amd) {\n    // AMD\n    define([], factory);\n  } else {\n    // Global (browser)\n    root.CryptoJS = factory();\n  }\n})(this, function () {\n  /**\n   * CryptoJS core components.\n   */\n  var CryptoJS = CryptoJS || function (Math, undefined) {\n    /*\n     * Local polyfil of Object.create\n     */\n    var create = Object.create || function () {\n      function F() {}\n\n      ;\n      return function (obj) {\n        var subtype;\n        F.prototype = obj;\n        subtype = new F();\n        F.prototype = null;\n        return subtype;\n      };\n    }();\n    /**\n     * CryptoJS namespace.\n     */\n\n\n    var C = {};\n    /**\n     * Library namespace.\n     */\n\n    var C_lib = C.lib = {};\n    /**\n     * Base object for prototypal inheritance.\n     */\n\n    var Base = C_lib.Base = function () {\n      return {\n        /**\n         * Creates a new object that inherits from this object.\n         *\n         * @param {Object} overrides Properties to copy into the new object.\n         *\n         * @return {Object} The new object.\n         *\n         * @static\n         *\n         * @example\n         *\n         *     var MyType = CryptoJS.lib.Base.extend({\n         *         field: 'value',\n         *\n         *         method: function () {\n         *         }\n         *     });\n         */\n        extend: function extend(overrides) {\n          // Spawn\n          var subtype = create(this); // Augment\n\n          if (overrides) {\n            subtype.mixIn(overrides);\n          } // Create default initializer\n\n\n          if (!subtype.hasOwnProperty('init') || this.init === subtype.init) {\n            subtype.init = function () {\n              subtype.$super.init.apply(this, arguments);\n            };\n          } // Initializer's prototype is the subtype object\n\n\n          subtype.init.prototype = subtype; // Reference supertype\n\n          subtype.$super = this;\n          return subtype;\n        },\n\n        /**\n         * Extends this object and runs the init method.\n         * Arguments to create() will be passed to init().\n         *\n         * @return {Object} The new object.\n         *\n         * @static\n         *\n         * @example\n         *\n         *     var instance = MyType.create();\n         */\n        create: function create() {\n          var instance = this.extend();\n          instance.init.apply(instance, arguments);\n          return instance;\n        },\n\n        /**\n         * Initializes a newly created object.\n         * Override this method to add some logic when your objects are created.\n         *\n         * @example\n         *\n         *     var MyType = CryptoJS.lib.Base.extend({\n         *         init: function () {\n         *             // ...\n         *         }\n         *     });\n         */\n        init: function init() {},\n\n        /**\n         * Copies properties into this object.\n         *\n         * @param {Object} properties The properties to mix in.\n         *\n         * @example\n         *\n         *     MyType.mixIn({\n         *         field: 'value'\n         *     });\n         */\n        mixIn: function mixIn(properties) {\n          for (var propertyName in properties) {\n            if (properties.hasOwnProperty(propertyName)) {\n              this[propertyName] = properties[propertyName];\n            }\n          } // IE won't copy toString using the loop above\n\n\n          if (properties.hasOwnProperty('toString')) {\n            this.toString = properties.toString;\n          }\n        },\n\n        /**\n         * Creates a copy of this object.\n         *\n         * @return {Object} The clone.\n         *\n         * @example\n         *\n         *     var clone = instance.clone();\n         */\n        clone: function clone() {\n          return this.init.prototype.extend(this);\n        }\n      };\n    }();\n    /**\n     * An array of 32-bit words.\n     *\n     * @property {Array} words The array of 32-bit words.\n     * @property {number} sigBytes The number of significant bytes in this word array.\n     */\n\n\n    var WordArray = C_lib.WordArray = Base.extend({\n      /**\n       * Initializes a newly created word array.\n       *\n       * @param {Array} words (Optional) An array of 32-bit words.\n       * @param {number} sigBytes (Optional) The number of significant bytes in the words.\n       *\n       * @example\n       *\n       *     var wordArray = CryptoJS.lib.WordArray.create();\n       *     var wordArray = CryptoJS.lib.WordArray.create([0x00010203, 0x04050607]);\n       *     var wordArray = CryptoJS.lib.WordArray.create([0x00010203, 0x04050607], 6);\n       */\n      init: function init(words, sigBytes) {\n        words = this.words = words || [];\n\n        if (sigBytes != undefined) {\n          this.sigBytes = sigBytes;\n        } else {\n          this.sigBytes = words.length * 4;\n        }\n      },\n\n      /**\n       * Converts this word array to a string.\n       *\n       * @param {Encoder} encoder (Optional) The encoding strategy to use. Default: CryptoJS.enc.Hex\n       *\n       * @return {string} The stringified word array.\n       *\n       * @example\n       *\n       *     var string = wordArray + '';\n       *     var string = wordArray.toString();\n       *     var string = wordArray.toString(CryptoJS.enc.Utf8);\n       */\n      toString: function toString(encoder) {\n        return (encoder || Hex).stringify(this);\n      },\n\n      /**\n       * Concatenates a word array to this word array.\n       *\n       * @param {WordArray} wordArray The word array to append.\n       *\n       * @return {WordArray} This word array.\n       *\n       * @example\n       *\n       *     wordArray1.concat(wordArray2);\n       */\n      concat: function concat(wordArray) {\n        // Shortcuts\n        var thisWords = this.words;\n        var thatWords = wordArray.words;\n        var thisSigBytes = this.sigBytes;\n        var thatSigBytes = wordArray.sigBytes; // Clamp excess bits\n\n        this.clamp(); // Concat\n\n        if (thisSigBytes % 4) {\n          // Copy one byte at a time\n          for (var i = 0; i < thatSigBytes; i++) {\n            var thatByte = thatWords[i >>> 2] >>> 24 - i % 4 * 8 & 0xff;\n            thisWords[thisSigBytes + i >>> 2] |= thatByte << 24 - (thisSigBytes + i) % 4 * 8;\n          }\n        } else {\n          // Copy one word at a time\n          for (var i = 0; i < thatSigBytes; i += 4) {\n            thisWords[thisSigBytes + i >>> 2] = thatWords[i >>> 2];\n          }\n        }\n\n        this.sigBytes += thatSigBytes; // Chainable\n\n        return this;\n      },\n\n      /**\n       * Removes insignificant bits.\n       *\n       * @example\n       *\n       *     wordArray.clamp();\n       */\n      clamp: function clamp() {\n        // Shortcuts\n        var words = this.words;\n        var sigBytes = this.sigBytes; // Clamp\n\n        words[sigBytes >>> 2] &= 0xffffffff << 32 - sigBytes % 4 * 8;\n        words.length = Math.ceil(sigBytes / 4);\n      },\n\n      /**\n       * Creates a copy of this word array.\n       *\n       * @return {WordArray} The clone.\n       *\n       * @example\n       *\n       *     var clone = wordArray.clone();\n       */\n      clone: function clone() {\n        var clone = Base.clone.call(this);\n        clone.words = this.words.slice(0);\n        return clone;\n      },\n\n      /**\n       * Creates a word array filled with random bytes.\n       *\n       * @param {number} nBytes The number of random bytes to generate.\n       *\n       * @return {WordArray} The random word array.\n       *\n       * @static\n       *\n       * @example\n       *\n       *     var wordArray = CryptoJS.lib.WordArray.random(16);\n       */\n      random: function random(nBytes) {\n        var words = [];\n\n        var r = function r(m_w) {\n          var m_w = m_w;\n          var m_z = 0x3ade68b1;\n          var mask = 0xffffffff;\n          return function () {\n            m_z = 0x9069 * (m_z & 0xFFFF) + (m_z >> 0x10) & mask;\n            m_w = 0x4650 * (m_w & 0xFFFF) + (m_w >> 0x10) & mask;\n            var result = (m_z << 0x10) + m_w & mask;\n            result /= 0x100000000;\n            result += 0.5;\n            return result * (Math.random() > .5 ? 1 : -1);\n          };\n        };\n\n        for (var i = 0, rcache; i < nBytes; i += 4) {\n          var _r = r((rcache || Math.random()) * 0x100000000);\n\n          rcache = _r() * 0x3ade67b7;\n          words.push(_r() * 0x100000000 | 0);\n        }\n\n        return new WordArray.init(words, nBytes);\n      }\n    });\n    /**\n     * Encoder namespace.\n     */\n\n    var C_enc = C.enc = {};\n    /**\n     * Hex encoding strategy.\n     */\n\n    var Hex = C_enc.Hex = {\n      /**\n       * Converts a word array to a hex string.\n       *\n       * @param {WordArray} wordArray The word array.\n       *\n       * @return {string} The hex string.\n       *\n       * @static\n       *\n       * @example\n       *\n       *     var hexString = CryptoJS.enc.Hex.stringify(wordArray);\n       */\n      stringify: function stringify(wordArray) {\n        // Shortcuts\n        var words = wordArray.words;\n        var sigBytes = wordArray.sigBytes; // Convert\n\n        var hexChars = [];\n\n        for (var i = 0; i < sigBytes; i++) {\n          var bite = words[i >>> 2] >>> 24 - i % 4 * 8 & 0xff;\n          hexChars.push((bite >>> 4).toString(16));\n          hexChars.push((bite & 0x0f).toString(16));\n        }\n\n        return hexChars.join('');\n      },\n\n      /**\n       * Converts a hex string to a word array.\n       *\n       * @param {string} hexStr The hex string.\n       *\n       * @return {WordArray} The word array.\n       *\n       * @static\n       *\n       * @example\n       *\n       *     var wordArray = CryptoJS.enc.Hex.parse(hexString);\n       */\n      parse: function parse(hexStr) {\n        // Shortcut\n        var hexStrLength = hexStr.length; // Convert\n\n        var words = [];\n\n        for (var i = 0; i < hexStrLength; i += 2) {\n          words[i >>> 3] |= parseInt(hexStr.substr(i, 2), 16) << 24 - i % 8 * 4;\n        }\n\n        return new WordArray.init(words, hexStrLength / 2);\n      }\n    };\n    /**\n     * Latin1 encoding strategy.\n     */\n\n    var Latin1 = C_enc.Latin1 = {\n      /**\n       * Converts a word array to a Latin1 string.\n       *\n       * @param {WordArray} wordArray The word array.\n       *\n       * @return {string} The Latin1 string.\n       *\n       * @static\n       *\n       * @example\n       *\n       *     var latin1String = CryptoJS.enc.Latin1.stringify(wordArray);\n       */\n      stringify: function stringify(wordArray) {\n        // Shortcuts\n        var words = wordArray.words;\n        var sigBytes = wordArray.sigBytes; // Convert\n\n        var latin1Chars = [];\n\n        for (var i = 0; i < sigBytes; i++) {\n          var bite = words[i >>> 2] >>> 24 - i % 4 * 8 & 0xff;\n          latin1Chars.push(String.fromCharCode(bite));\n        }\n\n        return latin1Chars.join('');\n      },\n\n      /**\n       * Converts a Latin1 string to a word array.\n       *\n       * @param {string} latin1Str The Latin1 string.\n       *\n       * @return {WordArray} The word array.\n       *\n       * @static\n       *\n       * @example\n       *\n       *     var wordArray = CryptoJS.enc.Latin1.parse(latin1String);\n       */\n      parse: function parse(latin1Str) {\n        // Shortcut\n        var latin1StrLength = latin1Str.length; // Convert\n\n        var words = [];\n\n        for (var i = 0; i < latin1StrLength; i++) {\n          words[i >>> 2] |= (latin1Str.charCodeAt(i) & 0xff) << 24 - i % 4 * 8;\n        }\n\n        return new WordArray.init(words, latin1StrLength);\n      }\n    };\n    /**\n     * UTF-8 encoding strategy.\n     */\n\n    var Utf8 = C_enc.Utf8 = {\n      /**\n       * Converts a word array to a UTF-8 string.\n       *\n       * @param {WordArray} wordArray The word array.\n       *\n       * @return {string} The UTF-8 string.\n       *\n       * @static\n       *\n       * @example\n       *\n       *     var utf8String = CryptoJS.enc.Utf8.stringify(wordArray);\n       */\n      stringify: function stringify(wordArray) {\n        try {\n          return decodeURIComponent(escape(Latin1.stringify(wordArray)));\n        } catch (e) {\n          throw new Error('Malformed UTF-8 data');\n        }\n      },\n\n      /**\n       * Converts a UTF-8 string to a word array.\n       *\n       * @param {string} utf8Str The UTF-8 string.\n       *\n       * @return {WordArray} The word array.\n       *\n       * @static\n       *\n       * @example\n       *\n       *     var wordArray = CryptoJS.enc.Utf8.parse(utf8String);\n       */\n      parse: function parse(utf8Str) {\n        return Latin1.parse(unescape(encodeURIComponent(utf8Str)));\n      }\n    };\n    /**\n     * Abstract buffered block algorithm template.\n     *\n     * The property blockSize must be implemented in a concrete subtype.\n     *\n     * @property {number} _minBufferSize The number of blocks that should be kept unprocessed in the buffer. Default: 0\n     */\n\n    var BufferedBlockAlgorithm = C_lib.BufferedBlockAlgorithm = Base.extend({\n      /**\n       * Resets this block algorithm's data buffer to its initial state.\n       *\n       * @example\n       *\n       *     bufferedBlockAlgorithm.reset();\n       */\n      reset: function reset() {\n        // Initial values\n        this._data = new WordArray.init();\n        this._nDataBytes = 0;\n      },\n\n      /**\n       * Adds new data to this block algorithm's buffer.\n       *\n       * @param {WordArray|string} data The data to append. Strings are converted to a WordArray using UTF-8.\n       *\n       * @example\n       *\n       *     bufferedBlockAlgorithm._append('data');\n       *     bufferedBlockAlgorithm._append(wordArray);\n       */\n      _append: function _append(data) {\n        // Convert string to WordArray, else assume WordArray already\n        if (typeof data == 'string') {\n          data = Utf8.parse(data);\n        } // Append\n\n\n        this._data.concat(data);\n\n        this._nDataBytes += data.sigBytes;\n      },\n\n      /**\n       * Processes available data blocks.\n       *\n       * This method invokes _doProcessBlock(offset), which must be implemented by a concrete subtype.\n       *\n       * @param {boolean} doFlush Whether all blocks and partial blocks should be processed.\n       *\n       * @return {WordArray} The processed data.\n       *\n       * @example\n       *\n       *     var processedData = bufferedBlockAlgorithm._process();\n       *     var processedData = bufferedBlockAlgorithm._process(!!'flush');\n       */\n      _process: function _process(doFlush) {\n        // Shortcuts\n        var data = this._data;\n        var dataWords = data.words;\n        var dataSigBytes = data.sigBytes;\n        var blockSize = this.blockSize;\n        var blockSizeBytes = blockSize * 4; // Count blocks ready\n\n        var nBlocksReady = dataSigBytes / blockSizeBytes;\n\n        if (doFlush) {\n          // Round up to include partial blocks\n          nBlocksReady = Math.ceil(nBlocksReady);\n        } else {\n          // Round down to include only full blocks,\n          // less the number of blocks that must remain in the buffer\n          nBlocksReady = Math.max((nBlocksReady | 0) - this._minBufferSize, 0);\n        } // Count words ready\n\n\n        var nWordsReady = nBlocksReady * blockSize; // Count bytes ready\n\n        var nBytesReady = Math.min(nWordsReady * 4, dataSigBytes); // Process blocks\n\n        if (nWordsReady) {\n          for (var offset = 0; offset < nWordsReady; offset += blockSize) {\n            // Perform concrete-algorithm logic\n            this._doProcessBlock(dataWords, offset);\n          } // Remove processed words\n\n\n          var processedWords = dataWords.splice(0, nWordsReady);\n          data.sigBytes -= nBytesReady;\n        } // Return processed words\n\n\n        return new WordArray.init(processedWords, nBytesReady);\n      },\n\n      /**\n       * Creates a copy of this object.\n       *\n       * @return {Object} The clone.\n       *\n       * @example\n       *\n       *     var clone = bufferedBlockAlgorithm.clone();\n       */\n      clone: function clone() {\n        var clone = Base.clone.call(this);\n        clone._data = this._data.clone();\n        return clone;\n      },\n      _minBufferSize: 0\n    });\n    /**\n     * Abstract hasher template.\n     *\n     * @property {number} blockSize The number of 32-bit words this hasher operates on. Default: 16 (512 bits)\n     */\n\n    var Hasher = C_lib.Hasher = BufferedBlockAlgorithm.extend({\n      /**\n       * Configuration options.\n       */\n      cfg: Base.extend(),\n\n      /**\n       * Initializes a newly created hasher.\n       *\n       * @param {Object} cfg (Optional) The configuration options to use for this hash computation.\n       *\n       * @example\n       *\n       *     var hasher = CryptoJS.algo.SHA256.create();\n       */\n      init: function init(cfg) {\n        // Apply config defaults\n        this.cfg = this.cfg.extend(cfg); // Set initial values\n\n        this.reset();\n      },\n\n      /**\n       * Resets this hasher to its initial state.\n       *\n       * @example\n       *\n       *     hasher.reset();\n       */\n      reset: function reset() {\n        // Reset data buffer\n        BufferedBlockAlgorithm.reset.call(this); // Perform concrete-hasher logic\n\n        this._doReset();\n      },\n\n      /**\n       * Updates this hasher with a message.\n       *\n       * @param {WordArray|string} messageUpdate The message to append.\n       *\n       * @return {Hasher} This hasher.\n       *\n       * @example\n       *\n       *     hasher.update('message');\n       *     hasher.update(wordArray);\n       */\n      update: function update(messageUpdate) {\n        // Append\n        this._append(messageUpdate); // Update the hash\n\n\n        this._process(); // Chainable\n\n\n        return this;\n      },\n\n      /**\n       * Finalizes the hash computation.\n       * Note that the finalize operation is effectively a destructive, read-once operation.\n       *\n       * @param {WordArray|string} messageUpdate (Optional) A final message update.\n       *\n       * @return {WordArray} The hash.\n       *\n       * @example\n       *\n       *     var hash = hasher.finalize();\n       *     var hash = hasher.finalize('message');\n       *     var hash = hasher.finalize(wordArray);\n       */\n      finalize: function finalize(messageUpdate) {\n        // Final message update\n        if (messageUpdate) {\n          this._append(messageUpdate);\n        } // Perform concrete-hasher logic\n\n\n        var hash = this._doFinalize();\n\n        return hash;\n      },\n      blockSize: 512 / 32,\n\n      /**\n       * Creates a shortcut function to a hasher's object interface.\n       *\n       * @param {Hasher} hasher The hasher to create a helper for.\n       *\n       * @return {Function} The shortcut function.\n       *\n       * @static\n       *\n       * @example\n       *\n       *     var SHA256 = CryptoJS.lib.Hasher._createHelper(CryptoJS.algo.SHA256);\n       */\n      _createHelper: function _createHelper(hasher) {\n        return function (message, cfg) {\n          return new hasher.init(cfg).finalize(message);\n        };\n      },\n\n      /**\n       * Creates a shortcut function to the HMAC's object interface.\n       *\n       * @param {Hasher} hasher The hasher to use in this HMAC helper.\n       *\n       * @return {Function} The shortcut function.\n       *\n       * @static\n       *\n       * @example\n       *\n       *     var HmacSHA256 = CryptoJS.lib.Hasher._createHmacHelper(CryptoJS.algo.SHA256);\n       */\n      _createHmacHelper: function _createHmacHelper(hasher) {\n        return function (message, key) {\n          return new C_algo.HMAC.init(hasher, key).finalize(message);\n        };\n      }\n    });\n    /**\n     * Algorithm namespace.\n     */\n\n    var C_algo = C.algo = {};\n    return C;\n  }(Math);\n\n  return CryptoJS;\n});","var util = require('../util');\n\nfunction QueryParamSerializer() {}\n\nQueryParamSerializer.prototype.serialize = function (params, shape, fn) {\n  serializeStructure('', params, shape, fn);\n};\n\nfunction ucfirst(shape) {\n  if (shape.isQueryName || shape.api.protocol !== 'ec2') {\n    return shape.name;\n  } else {\n    return shape.name[0].toUpperCase() + shape.name.substr(1);\n  }\n}\n\nfunction serializeStructure(prefix, struct, rules, fn) {\n  util.each(rules.members, function (name, member) {\n    var value = struct[name];\n    if (value === null || value === undefined) return;\n    var memberName = ucfirst(member);\n    memberName = prefix ? prefix + '.' + memberName : memberName;\n    serializeMember(memberName, value, member, fn);\n  });\n}\n\nfunction serializeMap(name, map, rules, fn) {\n  var i = 1;\n  util.each(map, function (key, value) {\n    var prefix = rules.flattened ? '.' : '.entry.';\n    var position = prefix + i++ + '.';\n    var keyName = position + (rules.key.name || 'key');\n    var valueName = position + (rules.value.name || 'value');\n    serializeMember(name + keyName, key, rules.key, fn);\n    serializeMember(name + valueName, value, rules.value, fn);\n  });\n}\n\nfunction serializeList(name, list, rules, fn) {\n  var memberRules = rules.member || {};\n\n  if (list.length === 0) {\n    fn.call(this, name, null);\n    return;\n  }\n\n  util.arrayEach(list, function (v, n) {\n    var suffix = '.' + (n + 1);\n\n    if (rules.api.protocol === 'ec2') {\n      // Do nothing for EC2\n      suffix = suffix + ''; // make linter happy\n    } else if (rules.flattened) {\n      if (memberRules.name) {\n        var parts = name.split('.');\n        parts.pop();\n        parts.push(ucfirst(memberRules));\n        name = parts.join('.');\n      }\n    } else {\n      suffix = '.' + (memberRules.name ? memberRules.name : 'member') + suffix;\n    }\n\n    serializeMember(name + suffix, v, memberRules, fn);\n  });\n}\n\nfunction serializeMember(name, value, rules, fn) {\n  if (value === null || value === undefined) return;\n\n  if (rules.type === 'structure') {\n    serializeStructure(name, value, rules, fn);\n  } else if (rules.type === 'list') {\n    serializeList(name, value, rules, fn);\n  } else if (rules.type === 'map') {\n    serializeMap(name, value, rules, fn);\n  } else {\n    fn(name, rules.toWireFormat(value).toString());\n  }\n}\n/**\n * @api private\n */\n\n\nmodule.exports = QueryParamSerializer;","var AWS = require('../core');\n\nvar v4Credentials = require('./v4_credentials');\n\nvar inherit = AWS.util.inherit;\n/**\n * @api private\n */\n\nvar expiresHeader = 'presigned-expires';\n/**\n * @api private\n */\n\nAWS.Signers.V4 = inherit(AWS.Signers.RequestSigner, {\n  constructor: function V4(request, serviceName, options) {\n    AWS.Signers.RequestSigner.call(this, request);\n    this.serviceName = serviceName;\n    options = options || {};\n    this.signatureCache = typeof options.signatureCache === 'boolean' ? options.signatureCache : true;\n    this.operation = options.operation;\n    this.signatureVersion = options.signatureVersion;\n  },\n  algorithm: 'AWS4-HMAC-SHA256',\n  addAuthorization: function addAuthorization(credentials, date) {\n    var datetime = AWS.util.date.iso8601(date).replace(/[:\\-]|\\.\\d{3}/g, '');\n\n    if (this.isPresigned()) {\n      this.updateForPresigned(credentials, datetime);\n    } else {\n      this.addHeaders(credentials, datetime);\n    }\n\n    this.request.headers['Authorization'] = this.authorization(credentials, datetime);\n  },\n  addHeaders: function addHeaders(credentials, datetime) {\n    this.request.headers['X-Amz-Date'] = datetime;\n\n    if (credentials.sessionToken) {\n      this.request.headers['x-amz-security-token'] = credentials.sessionToken;\n    }\n  },\n  updateForPresigned: function updateForPresigned(credentials, datetime) {\n    var credString = this.credentialString(datetime);\n    var qs = {\n      'X-Amz-Date': datetime,\n      'X-Amz-Algorithm': this.algorithm,\n      'X-Amz-Credential': credentials.accessKeyId + '/' + credString,\n      'X-Amz-Expires': this.request.headers[expiresHeader],\n      'X-Amz-SignedHeaders': this.signedHeaders()\n    };\n\n    if (credentials.sessionToken) {\n      qs['X-Amz-Security-Token'] = credentials.sessionToken;\n    }\n\n    if (this.request.headers['Content-Type']) {\n      qs['Content-Type'] = this.request.headers['Content-Type'];\n    }\n\n    if (this.request.headers['Content-MD5']) {\n      qs['Content-MD5'] = this.request.headers['Content-MD5'];\n    }\n\n    if (this.request.headers['Cache-Control']) {\n      qs['Cache-Control'] = this.request.headers['Cache-Control'];\n    } // need to pull in any other X-Amz-* headers\n\n\n    AWS.util.each.call(this, this.request.headers, function (key, value) {\n      if (key === expiresHeader) return;\n\n      if (this.isSignableHeader(key)) {\n        var lowerKey = key.toLowerCase(); // Metadata should be normalized\n\n        if (lowerKey.indexOf('x-amz-meta-') === 0) {\n          qs[lowerKey] = value;\n        } else if (lowerKey.indexOf('x-amz-') === 0) {\n          qs[key] = value;\n        }\n      }\n    });\n    var sep = this.request.path.indexOf('?') >= 0 ? '&' : '?';\n    this.request.path += sep + AWS.util.queryParamsToString(qs);\n  },\n  authorization: function authorization(credentials, datetime) {\n    var parts = [];\n    var credString = this.credentialString(datetime);\n    parts.push(this.algorithm + ' Credential=' + credentials.accessKeyId + '/' + credString);\n    parts.push('SignedHeaders=' + this.signedHeaders());\n    parts.push('Signature=' + this.signature(credentials, datetime));\n    return parts.join(', ');\n  },\n  signature: function signature(credentials, datetime) {\n    var signingKey = v4Credentials.getSigningKey(credentials, datetime.substr(0, 8), this.request.region, this.serviceName, this.signatureCache);\n    return AWS.util.crypto.hmac(signingKey, this.stringToSign(datetime), 'hex');\n  },\n  stringToSign: function stringToSign(datetime) {\n    var parts = [];\n    parts.push('AWS4-HMAC-SHA256');\n    parts.push(datetime);\n    parts.push(this.credentialString(datetime));\n    parts.push(this.hexEncodedHash(this.canonicalString()));\n    return parts.join('\\n');\n  },\n  canonicalString: function canonicalString() {\n    var parts = [],\n        pathname = this.request.pathname();\n    if (this.serviceName !== 's3' && this.signatureVersion !== 's3v4') pathname = AWS.util.uriEscapePath(pathname);\n    parts.push(this.request.method);\n    parts.push(pathname);\n    parts.push(this.request.search());\n    parts.push(this.canonicalHeaders() + '\\n');\n    parts.push(this.signedHeaders());\n    parts.push(this.hexEncodedBodyHash());\n    return parts.join('\\n');\n  },\n  canonicalHeaders: function canonicalHeaders() {\n    var headers = [];\n    AWS.util.each.call(this, this.request.headers, function (key, item) {\n      headers.push([key, item]);\n    });\n    headers.sort(function (a, b) {\n      return a[0].toLowerCase() < b[0].toLowerCase() ? -1 : 1;\n    });\n    var parts = [];\n    AWS.util.arrayEach.call(this, headers, function (item) {\n      var key = item[0].toLowerCase();\n\n      if (this.isSignableHeader(key)) {\n        var value = item[1];\n\n        if (typeof value === 'undefined' || value === null || typeof value.toString !== 'function') {\n          throw AWS.util.error(new Error('Header ' + key + ' contains invalid value'), {\n            code: 'InvalidHeader'\n          });\n        }\n\n        parts.push(key + ':' + this.canonicalHeaderValues(value.toString()));\n      }\n    });\n    return parts.join('\\n');\n  },\n  canonicalHeaderValues: function canonicalHeaderValues(values) {\n    return values.replace(/\\s+/g, ' ').replace(/^\\s+|\\s+$/g, '');\n  },\n  signedHeaders: function signedHeaders() {\n    var keys = [];\n    AWS.util.each.call(this, this.request.headers, function (key) {\n      key = key.toLowerCase();\n      if (this.isSignableHeader(key)) keys.push(key);\n    });\n    return keys.sort().join(';');\n  },\n  credentialString: function credentialString(datetime) {\n    return v4Credentials.createScope(datetime.substr(0, 8), this.request.region, this.serviceName);\n  },\n  hexEncodedHash: function hash(string) {\n    return AWS.util.crypto.sha256(string, 'hex');\n  },\n  hexEncodedBodyHash: function hexEncodedBodyHash() {\n    var request = this.request;\n\n    if (this.isPresigned() && this.serviceName === 's3' && !request.body) {\n      return 'UNSIGNED-PAYLOAD';\n    } else if (request.headers['X-Amz-Content-Sha256']) {\n      return request.headers['X-Amz-Content-Sha256'];\n    } else {\n      return this.hexEncodedHash(this.request.body || '');\n    }\n  },\n  unsignableHeaders: ['authorization', 'content-type', 'content-length', 'user-agent', expiresHeader, 'expect', 'x-amzn-trace-id'],\n  isSignableHeader: function isSignableHeader(key) {\n    if (key.toLowerCase().indexOf('x-amz-') === 0) return true;\n    return this.unsignableHeaders.indexOf(key) < 0;\n  },\n  isPresigned: function isPresigned() {\n    return this.request.headers[expiresHeader] ? true : false;\n  }\n});\n/**\n * @api private\n */\n\nmodule.exports = AWS.Signers.V4;","if (typeof Object.create === 'function') {\n  // implementation from standard node.js 'util' module\n  module.exports = function inherits(ctor, superCtor) {\n    ctor.super_ = superCtor;\n    ctor.prototype = Object.create(superCtor.prototype, {\n      constructor: {\n        value: ctor,\n        enumerable: false,\n        writable: true,\n        configurable: true\n      }\n    });\n  };\n} else {\n  // old school shim for old browsers\n  module.exports = function inherits(ctor, superCtor) {\n    ctor.super_ = superCtor;\n\n    var TempCtor = function TempCtor() {};\n\n    TempCtor.prototype = superCtor.prototype;\n    ctor.prototype = new TempCtor();\n    ctor.prototype.constructor = ctor;\n  };\n}","module.exports = {\n  //provide realtime clock for performance measurement\n  now: function now() {\n    if (typeof performance !== 'undefined' && typeof performance.now === 'function') {\n      return performance.now();\n    }\n\n    return Date.now();\n  }\n};","var util = require('../util');\n\nfunction JsonParser() {}\n\nJsonParser.prototype.parse = function (value, shape) {\n  return translate(JSON.parse(value), shape);\n};\n\nfunction translate(value, shape) {\n  if (!shape || value === undefined) return undefined;\n\n  switch (shape.type) {\n    case 'structure':\n      return translateStructure(value, shape);\n\n    case 'map':\n      return translateMap(value, shape);\n\n    case 'list':\n      return translateList(value, shape);\n\n    default:\n      return translateScalar(value, shape);\n  }\n}\n\nfunction translateStructure(structure, shape) {\n  if (structure == null) return undefined;\n  var struct = {};\n  var shapeMembers = shape.members;\n  util.each(shapeMembers, function (name, memberShape) {\n    var locationName = memberShape.isLocationName ? memberShape.name : name;\n\n    if (Object.prototype.hasOwnProperty.call(structure, locationName)) {\n      var value = structure[locationName];\n      var result = translate(value, memberShape);\n      if (result !== undefined) struct[name] = result;\n    }\n  });\n  return struct;\n}\n\nfunction translateList(list, shape) {\n  if (list == null) return undefined;\n  var out = [];\n  util.arrayEach(list, function (value) {\n    var result = translate(value, shape.member);\n    if (result === undefined) out.push(null);else out.push(result);\n  });\n  return out;\n}\n\nfunction translateMap(map, shape) {\n  if (map == null) return undefined;\n  var out = {};\n  util.each(map, function (key, value) {\n    var result = translate(value, shape.value);\n    if (result === undefined) out[key] = null;else out[key] = result;\n  });\n  return out;\n}\n\nfunction translateScalar(value, shape) {\n  return shape.toType(value);\n}\n/**\n * @api private\n */\n\n\nmodule.exports = JsonParser;","require(\"core-js/modules/es.array.reduce.js\");\n\n// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\nvar getOwnPropertyDescriptors = Object.getOwnPropertyDescriptors || function getOwnPropertyDescriptors(obj) {\n  var keys = Object.keys(obj);\n  var descriptors = {};\n\n  for (var i = 0; i < keys.length; i++) {\n    descriptors[keys[i]] = Object.getOwnPropertyDescriptor(obj, keys[i]);\n  }\n\n  return descriptors;\n};\n\nvar formatRegExp = /%[sdj%]/g;\n\nexports.format = function (f) {\n  if (!isString(f)) {\n    var objects = [];\n\n    for (var i = 0; i < arguments.length; i++) {\n      objects.push(inspect(arguments[i]));\n    }\n\n    return objects.join(' ');\n  }\n\n  var i = 1;\n  var args = arguments;\n  var len = args.length;\n  var str = String(f).replace(formatRegExp, function (x) {\n    if (x === '%%') return '%';\n    if (i >= len) return x;\n\n    switch (x) {\n      case '%s':\n        return String(args[i++]);\n\n      case '%d':\n        return Number(args[i++]);\n\n      case '%j':\n        try {\n          return JSON.stringify(args[i++]);\n        } catch (_) {\n          return '[Circular]';\n        }\n\n      default:\n        return x;\n    }\n  });\n\n  for (var x = args[i]; i < len; x = args[++i]) {\n    if (isNull(x) || !isObject(x)) {\n      str += ' ' + x;\n    } else {\n      str += ' ' + inspect(x);\n    }\n  }\n\n  return str;\n}; // Mark that a method should not be used.\n// Returns a modified function which warns once by default.\n// If --no-deprecation is set, then it is a no-op.\n\n\nexports.deprecate = function (fn, msg) {\n  if (typeof process !== 'undefined' && process.noDeprecation === true) {\n    return fn;\n  } // Allow for deprecating things in the process of starting up.\n\n\n  if (typeof process === 'undefined') {\n    return function () {\n      return exports.deprecate(fn, msg).apply(this, arguments);\n    };\n  }\n\n  var warned = false;\n\n  function deprecated() {\n    if (!warned) {\n      if (process.throwDeprecation) {\n        throw new Error(msg);\n      } else if (process.traceDeprecation) {\n        console.trace(msg);\n      } else {\n        console.error(msg);\n      }\n\n      warned = true;\n    }\n\n    return fn.apply(this, arguments);\n  }\n\n  return deprecated;\n};\n\nvar debugs = {};\nvar debugEnviron;\n\nexports.debuglog = function (set) {\n  if (isUndefined(debugEnviron)) debugEnviron = process.env.NODE_DEBUG || '';\n  set = set.toUpperCase();\n\n  if (!debugs[set]) {\n    if (new RegExp('\\\\b' + set + '\\\\b', 'i').test(debugEnviron)) {\n      var pid = process.pid;\n\n      debugs[set] = function () {\n        var msg = exports.format.apply(exports, arguments);\n        console.error('%s %d: %s', set, pid, msg);\n      };\n    } else {\n      debugs[set] = function () {};\n    }\n  }\n\n  return debugs[set];\n};\n/**\n * Echos the value of a value. Trys to print the value out\n * in the best way possible given the different types.\n *\n * @param {Object} obj The object to print out.\n * @param {Object} opts Optional options object that alters the output.\n */\n\n/* legacy: obj, showHidden, depth, colors*/\n\n\nfunction inspect(obj, opts) {\n  // default options\n  var ctx = {\n    seen: [],\n    stylize: stylizeNoColor\n  }; // legacy...\n\n  if (arguments.length >= 3) ctx.depth = arguments[2];\n  if (arguments.length >= 4) ctx.colors = arguments[3];\n\n  if (isBoolean(opts)) {\n    // legacy...\n    ctx.showHidden = opts;\n  } else if (opts) {\n    // got an \"options\" object\n    exports._extend(ctx, opts);\n  } // set default options\n\n\n  if (isUndefined(ctx.showHidden)) ctx.showHidden = false;\n  if (isUndefined(ctx.depth)) ctx.depth = 2;\n  if (isUndefined(ctx.colors)) ctx.colors = false;\n  if (isUndefined(ctx.customInspect)) ctx.customInspect = true;\n  if (ctx.colors) ctx.stylize = stylizeWithColor;\n  return formatValue(ctx, obj, ctx.depth);\n}\n\nexports.inspect = inspect; // http://en.wikipedia.org/wiki/ANSI_escape_code#graphics\n\ninspect.colors = {\n  'bold': [1, 22],\n  'italic': [3, 23],\n  'underline': [4, 24],\n  'inverse': [7, 27],\n  'white': [37, 39],\n  'grey': [90, 39],\n  'black': [30, 39],\n  'blue': [34, 39],\n  'cyan': [36, 39],\n  'green': [32, 39],\n  'magenta': [35, 39],\n  'red': [31, 39],\n  'yellow': [33, 39]\n}; // Don't use 'blue' not visible on cmd.exe\n\ninspect.styles = {\n  'special': 'cyan',\n  'number': 'yellow',\n  'boolean': 'yellow',\n  'undefined': 'grey',\n  'null': 'bold',\n  'string': 'green',\n  'date': 'magenta',\n  // \"name\": intentionally not styling\n  'regexp': 'red'\n};\n\nfunction stylizeWithColor(str, styleType) {\n  var style = inspect.styles[styleType];\n\n  if (style) {\n    return \"\\x1B[\" + inspect.colors[style][0] + 'm' + str + \"\\x1B[\" + inspect.colors[style][1] + 'm';\n  } else {\n    return str;\n  }\n}\n\nfunction stylizeNoColor(str, styleType) {\n  return str;\n}\n\nfunction arrayToHash(array) {\n  var hash = {};\n  array.forEach(function (val, idx) {\n    hash[val] = true;\n  });\n  return hash;\n}\n\nfunction formatValue(ctx, value, recurseTimes) {\n  // Provide a hook for user-specified inspect functions.\n  // Check that value is an object with an inspect function on it\n  if (ctx.customInspect && value && isFunction(value.inspect) && // Filter out the util module, it's inspect function is special\n  value.inspect !== exports.inspect && // Also filter out any prototype objects using the circular check.\n  !(value.constructor && value.constructor.prototype === value)) {\n    var ret = value.inspect(recurseTimes, ctx);\n\n    if (!isString(ret)) {\n      ret = formatValue(ctx, ret, recurseTimes);\n    }\n\n    return ret;\n  } // Primitive types cannot have properties\n\n\n  var primitive = formatPrimitive(ctx, value);\n\n  if (primitive) {\n    return primitive;\n  } // Look up the keys of the object.\n\n\n  var keys = Object.keys(value);\n  var visibleKeys = arrayToHash(keys);\n\n  if (ctx.showHidden) {\n    keys = Object.getOwnPropertyNames(value);\n  } // IE doesn't make error fields non-enumerable\n  // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx\n\n\n  if (isError(value) && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {\n    return formatError(value);\n  } // Some type of object without properties can be shortcutted.\n\n\n  if (keys.length === 0) {\n    if (isFunction(value)) {\n      var name = value.name ? ': ' + value.name : '';\n      return ctx.stylize('[Function' + name + ']', 'special');\n    }\n\n    if (isRegExp(value)) {\n      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');\n    }\n\n    if (isDate(value)) {\n      return ctx.stylize(Date.prototype.toString.call(value), 'date');\n    }\n\n    if (isError(value)) {\n      return formatError(value);\n    }\n  }\n\n  var base = '',\n      array = false,\n      braces = ['{', '}']; // Make Array say that they are Array\n\n  if (isArray(value)) {\n    array = true;\n    braces = ['[', ']'];\n  } // Make functions say that they are functions\n\n\n  if (isFunction(value)) {\n    var n = value.name ? ': ' + value.name : '';\n    base = ' [Function' + n + ']';\n  } // Make RegExps say that they are RegExps\n\n\n  if (isRegExp(value)) {\n    base = ' ' + RegExp.prototype.toString.call(value);\n  } // Make dates with properties first say the date\n\n\n  if (isDate(value)) {\n    base = ' ' + Date.prototype.toUTCString.call(value);\n  } // Make error with message first say the error\n\n\n  if (isError(value)) {\n    base = ' ' + formatError(value);\n  }\n\n  if (keys.length === 0 && (!array || value.length == 0)) {\n    return braces[0] + base + braces[1];\n  }\n\n  if (recurseTimes < 0) {\n    if (isRegExp(value)) {\n      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');\n    } else {\n      return ctx.stylize('[Object]', 'special');\n    }\n  }\n\n  ctx.seen.push(value);\n  var output;\n\n  if (array) {\n    output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);\n  } else {\n    output = keys.map(function (key) {\n      return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);\n    });\n  }\n\n  ctx.seen.pop();\n  return reduceToSingleString(output, base, braces);\n}\n\nfunction formatPrimitive(ctx, value) {\n  if (isUndefined(value)) return ctx.stylize('undefined', 'undefined');\n\n  if (isString(value)) {\n    var simple = '\\'' + JSON.stringify(value).replace(/^\"|\"$/g, '').replace(/'/g, \"\\\\'\").replace(/\\\\\"/g, '\"') + '\\'';\n    return ctx.stylize(simple, 'string');\n  }\n\n  if (isNumber(value)) return ctx.stylize('' + value, 'number');\n  if (isBoolean(value)) return ctx.stylize('' + value, 'boolean'); // For some reason typeof null is \"object\", so special case here.\n\n  if (isNull(value)) return ctx.stylize('null', 'null');\n}\n\nfunction formatError(value) {\n  return '[' + Error.prototype.toString.call(value) + ']';\n}\n\nfunction formatArray(ctx, value, recurseTimes, visibleKeys, keys) {\n  var output = [];\n\n  for (var i = 0, l = value.length; i < l; ++i) {\n    if (hasOwnProperty(value, String(i))) {\n      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, String(i), true));\n    } else {\n      output.push('');\n    }\n  }\n\n  keys.forEach(function (key) {\n    if (!key.match(/^\\d+$/)) {\n      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, key, true));\n    }\n  });\n  return output;\n}\n\nfunction formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {\n  var name, str, desc;\n  desc = Object.getOwnPropertyDescriptor(value, key) || {\n    value: value[key]\n  };\n\n  if (desc.get) {\n    if (desc.set) {\n      str = ctx.stylize('[Getter/Setter]', 'special');\n    } else {\n      str = ctx.stylize('[Getter]', 'special');\n    }\n  } else {\n    if (desc.set) {\n      str = ctx.stylize('[Setter]', 'special');\n    }\n  }\n\n  if (!hasOwnProperty(visibleKeys, key)) {\n    name = '[' + key + ']';\n  }\n\n  if (!str) {\n    if (ctx.seen.indexOf(desc.value) < 0) {\n      if (isNull(recurseTimes)) {\n        str = formatValue(ctx, desc.value, null);\n      } else {\n        str = formatValue(ctx, desc.value, recurseTimes - 1);\n      }\n\n      if (str.indexOf('\\n') > -1) {\n        if (array) {\n          str = str.split('\\n').map(function (line) {\n            return '  ' + line;\n          }).join('\\n').substr(2);\n        } else {\n          str = '\\n' + str.split('\\n').map(function (line) {\n            return '   ' + line;\n          }).join('\\n');\n        }\n      }\n    } else {\n      str = ctx.stylize('[Circular]', 'special');\n    }\n  }\n\n  if (isUndefined(name)) {\n    if (array && key.match(/^\\d+$/)) {\n      return str;\n    }\n\n    name = JSON.stringify('' + key);\n\n    if (name.match(/^\"([a-zA-Z_][a-zA-Z_0-9]*)\"$/)) {\n      name = name.substr(1, name.length - 2);\n      name = ctx.stylize(name, 'name');\n    } else {\n      name = name.replace(/'/g, \"\\\\'\").replace(/\\\\\"/g, '\"').replace(/(^\"|\"$)/g, \"'\");\n      name = ctx.stylize(name, 'string');\n    }\n  }\n\n  return name + ': ' + str;\n}\n\nfunction reduceToSingleString(output, base, braces) {\n  var numLinesEst = 0;\n  var length = output.reduce(function (prev, cur) {\n    numLinesEst++;\n    if (cur.indexOf('\\n') >= 0) numLinesEst++;\n    return prev + cur.replace(/\\u001b\\[\\d\\d?m/g, '').length + 1;\n  }, 0);\n\n  if (length > 60) {\n    return braces[0] + (base === '' ? '' : base + '\\n ') + ' ' + output.join(',\\n  ') + ' ' + braces[1];\n  }\n\n  return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];\n} // NOTE: These type checking functions intentionally don't use `instanceof`\n// because it is fragile and can be easily faked with `Object.create()`.\n\n\nfunction isArray(ar) {\n  return Array.isArray(ar);\n}\n\nexports.isArray = isArray;\n\nfunction isBoolean(arg) {\n  return typeof arg === 'boolean';\n}\n\nexports.isBoolean = isBoolean;\n\nfunction isNull(arg) {\n  return arg === null;\n}\n\nexports.isNull = isNull;\n\nfunction isNullOrUndefined(arg) {\n  return arg == null;\n}\n\nexports.isNullOrUndefined = isNullOrUndefined;\n\nfunction isNumber(arg) {\n  return typeof arg === 'number';\n}\n\nexports.isNumber = isNumber;\n\nfunction isString(arg) {\n  return typeof arg === 'string';\n}\n\nexports.isString = isString;\n\nfunction isSymbol(arg) {\n  return typeof arg === 'symbol';\n}\n\nexports.isSymbol = isSymbol;\n\nfunction isUndefined(arg) {\n  return arg === void 0;\n}\n\nexports.isUndefined = isUndefined;\n\nfunction isRegExp(re) {\n  return isObject(re) && objectToString(re) === '[object RegExp]';\n}\n\nexports.isRegExp = isRegExp;\n\nfunction isObject(arg) {\n  return typeof arg === 'object' && arg !== null;\n}\n\nexports.isObject = isObject;\n\nfunction isDate(d) {\n  return isObject(d) && objectToString(d) === '[object Date]';\n}\n\nexports.isDate = isDate;\n\nfunction isError(e) {\n  return isObject(e) && (objectToString(e) === '[object Error]' || e instanceof Error);\n}\n\nexports.isError = isError;\n\nfunction isFunction(arg) {\n  return typeof arg === 'function';\n}\n\nexports.isFunction = isFunction;\n\nfunction isPrimitive(arg) {\n  return arg === null || typeof arg === 'boolean' || typeof arg === 'number' || typeof arg === 'string' || typeof arg === 'symbol' || // ES6 symbol\n  typeof arg === 'undefined';\n}\n\nexports.isPrimitive = isPrimitive;\nexports.isBuffer = require('./support/isBuffer');\n\nfunction objectToString(o) {\n  return Object.prototype.toString.call(o);\n}\n\nfunction pad(n) {\n  return n < 10 ? '0' + n.toString(10) : n.toString(10);\n}\n\nvar months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']; // 26 Feb 16:19:34\n\nfunction timestamp() {\n  var d = new Date();\n  var time = [pad(d.getHours()), pad(d.getMinutes()), pad(d.getSeconds())].join(':');\n  return [d.getDate(), months[d.getMonth()], time].join(' ');\n} // log is just a thin wrapper to console.log that prepends a timestamp\n\n\nexports.log = function () {\n  console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));\n};\n/**\n * Inherit the prototype methods from one constructor into another.\n *\n * The Function.prototype.inherits from lang.js rewritten as a standalone\n * function (not on Function.prototype). NOTE: If this file is to be loaded\n * during bootstrapping this function needs to be rewritten using some native\n * functions as prototype setup using normal JavaScript does not work as\n * expected during bootstrapping (see mirror.js in r114903).\n *\n * @param {function} ctor Constructor function which needs to inherit the\n *     prototype.\n * @param {function} superCtor Constructor function to inherit prototype from.\n */\n\n\nexports.inherits = require('inherits');\n\nexports._extend = function (origin, add) {\n  // Don't do anything if add isn't an object\n  if (!add || !isObject(add)) return origin;\n  var keys = Object.keys(add);\n  var i = keys.length;\n\n  while (i--) {\n    origin[keys[i]] = add[keys[i]];\n  }\n\n  return origin;\n};\n\nfunction hasOwnProperty(obj, prop) {\n  return Object.prototype.hasOwnProperty.call(obj, prop);\n}\n\nvar kCustomPromisifiedSymbol = typeof Symbol !== 'undefined' ? Symbol('util.promisify.custom') : undefined;\n\nexports.promisify = function promisify(original) {\n  if (typeof original !== 'function') throw new TypeError('The \"original\" argument must be of type Function');\n\n  if (kCustomPromisifiedSymbol && original[kCustomPromisifiedSymbol]) {\n    var fn = original[kCustomPromisifiedSymbol];\n\n    if (typeof fn !== 'function') {\n      throw new TypeError('The \"util.promisify.custom\" argument must be of type Function');\n    }\n\n    Object.defineProperty(fn, kCustomPromisifiedSymbol, {\n      value: fn,\n      enumerable: false,\n      writable: false,\n      configurable: true\n    });\n    return fn;\n  }\n\n  function fn() {\n    var promiseResolve, promiseReject;\n    var promise = new Promise(function (resolve, reject) {\n      promiseResolve = resolve;\n      promiseReject = reject;\n    });\n    var args = [];\n\n    for (var i = 0; i < arguments.length; i++) {\n      args.push(arguments[i]);\n    }\n\n    args.push(function (err, value) {\n      if (err) {\n        promiseReject(err);\n      } else {\n        promiseResolve(value);\n      }\n    });\n\n    try {\n      original.apply(this, args);\n    } catch (err) {\n      promiseReject(err);\n    }\n\n    return promise;\n  }\n\n  Object.setPrototypeOf(fn, Object.getPrototypeOf(original));\n  if (kCustomPromisifiedSymbol) Object.defineProperty(fn, kCustomPromisifiedSymbol, {\n    value: fn,\n    enumerable: false,\n    writable: false,\n    configurable: true\n  });\n  return Object.defineProperties(fn, getOwnPropertyDescriptors(original));\n};\n\nexports.promisify.custom = kCustomPromisifiedSymbol;\n\nfunction callbackifyOnRejected(reason, cb) {\n  // `!reason` guard inspired by bluebird (Ref: https://goo.gl/t5IS6M).\n  // Because `null` is a special error value in callbacks which means \"no error\n  // occurred\", we error-wrap so the callback consumer can distinguish between\n  // \"the promise rejected with null\" or \"the promise fulfilled with undefined\".\n  if (!reason) {\n    var newReason = new Error('Promise was rejected with a falsy value');\n    newReason.reason = reason;\n    reason = newReason;\n  }\n\n  return cb(reason);\n}\n\nfunction callbackify(original) {\n  if (typeof original !== 'function') {\n    throw new TypeError('The \"original\" argument must be of type Function');\n  } // We DO NOT return the promise as it gives the user a false sense that\n  // the promise is actually somehow related to the callback's execution\n  // and that the callback throwing will reject the promise.\n\n\n  function callbackified() {\n    var args = [];\n\n    for (var i = 0; i < arguments.length; i++) {\n      args.push(arguments[i]);\n    }\n\n    var maybeCb = args.pop();\n\n    if (typeof maybeCb !== 'function') {\n      throw new TypeError('The last argument must be of type Function');\n    }\n\n    var self = this;\n\n    var cb = function cb() {\n      return maybeCb.apply(self, arguments);\n    }; // In true node style we process the callback on `nextTick` with all the\n    // implications (stack, `uncaughtException`, `async_hooks`)\n\n\n    original.apply(this, args).then(function (ret) {\n      process.nextTick(cb, null, ret);\n    }, function (rej) {\n      process.nextTick(callbackifyOnRejected, rej, cb);\n    });\n  }\n\n  Object.setPrototypeOf(callbackified, Object.getPrototypeOf(original));\n  Object.defineProperties(callbackified, getOwnPropertyDescriptors(original));\n  return callbackified;\n}\n\nexports.callbackify = callbackify;","'use strict';\n\nmodule.exports = {\n  isString: function isString(arg) {\n    return typeof arg === 'string';\n  },\n  isObject: function isObject(arg) {\n    return typeof arg === 'object' && arg !== null;\n  },\n  isNull: function isNull(arg) {\n    return arg === null;\n  },\n  isNullOrUndefined: function isNullOrUndefined(arg) {\n    return arg == null;\n  }\n};","\"use strict\";\n\nObject.defineProperty(exports, \"__esModule\", {\n  value: true\n});\n\nvar LinkedListNode =\n/** @class */\nfunction () {\n  function LinkedListNode(key, value) {\n    this.key = key;\n    this.value = value;\n  }\n\n  return LinkedListNode;\n}();\n\nvar LRUCache =\n/** @class */\nfunction () {\n  function LRUCache(size) {\n    this.nodeMap = {};\n    this.size = 0;\n\n    if (typeof size !== 'number' || size < 1) {\n      throw new Error('Cache size can only be positive number');\n    }\n\n    this.sizeLimit = size;\n  }\n\n  Object.defineProperty(LRUCache.prototype, \"length\", {\n    get: function get() {\n      return this.size;\n    },\n    enumerable: true,\n    configurable: true\n  });\n\n  LRUCache.prototype.prependToList = function (node) {\n    if (!this.headerNode) {\n      this.tailNode = node;\n    } else {\n      this.headerNode.prev = node;\n      node.next = this.headerNode;\n    }\n\n    this.headerNode = node;\n    this.size++;\n  };\n\n  LRUCache.prototype.removeFromTail = function () {\n    if (!this.tailNode) {\n      return undefined;\n    }\n\n    var node = this.tailNode;\n    var prevNode = node.prev;\n\n    if (prevNode) {\n      prevNode.next = undefined;\n    }\n\n    node.prev = undefined;\n    this.tailNode = prevNode;\n    this.size--;\n    return node;\n  };\n\n  LRUCache.prototype.detachFromList = function (node) {\n    if (this.headerNode === node) {\n      this.headerNode = node.next;\n    }\n\n    if (this.tailNode === node) {\n      this.tailNode = node.prev;\n    }\n\n    if (node.prev) {\n      node.prev.next = node.next;\n    }\n\n    if (node.next) {\n      node.next.prev = node.prev;\n    }\n\n    node.next = undefined;\n    node.prev = undefined;\n    this.size--;\n  };\n\n  LRUCache.prototype.get = function (key) {\n    if (this.nodeMap[key]) {\n      var node = this.nodeMap[key];\n      this.detachFromList(node);\n      this.prependToList(node);\n      return node.value;\n    }\n  };\n\n  LRUCache.prototype.remove = function (key) {\n    if (this.nodeMap[key]) {\n      var node = this.nodeMap[key];\n      this.detachFromList(node);\n      delete this.nodeMap[key];\n    }\n  };\n\n  LRUCache.prototype.put = function (key, value) {\n    if (this.nodeMap[key]) {\n      this.remove(key);\n    } else if (this.size === this.sizeLimit) {\n      var tailNode = this.removeFromTail();\n      var key_1 = tailNode.key;\n      delete this.nodeMap[key_1];\n    }\n\n    var newNode = new LinkedListNode(key, value);\n    this.nodeMap[key] = newNode;\n    this.prependToList(newNode);\n  };\n\n  LRUCache.prototype.empty = function () {\n    var keys = Object.keys(this.nodeMap);\n\n    for (var i = 0; i < keys.length; i++) {\n      var key = keys[i];\n      var node = this.nodeMap[key];\n      this.detachFromList(node);\n      delete this.nodeMap[key];\n    }\n  };\n\n  return LRUCache;\n}();\n\nexports.LRUCache = LRUCache;","var AWS = require('../core');\n/**\n * Creates a credential provider chain that searches for AWS credentials\n * in a list of credential providers specified by the {providers} property.\n *\n * By default, the chain will use the {defaultProviders} to resolve credentials.\n * These providers will look in the environment using the\n * {AWS.EnvironmentCredentials} class with the 'AWS' and 'AMAZON' prefixes.\n *\n * ## Setting Providers\n *\n * Each provider in the {providers} list should be a function that returns\n * a {AWS.Credentials} object, or a hardcoded credentials object. The function\n * form allows for delayed execution of the credential construction.\n *\n * ## Resolving Credentials from a Chain\n *\n * Call {resolve} to return the first valid credential object that can be\n * loaded by the provider chain.\n *\n * For example, to resolve a chain with a custom provider that checks a file\n * on disk after the set of {defaultProviders}:\n *\n * ```javascript\n * var diskProvider = new AWS.FileSystemCredentials('./creds.json');\n * var chain = new AWS.CredentialProviderChain();\n * chain.providers.push(diskProvider);\n * chain.resolve();\n * ```\n *\n * The above code will return the `diskProvider` object if the\n * file contains credentials and the `defaultProviders` do not contain\n * any credential settings.\n *\n * @!attribute providers\n *   @return [Array<AWS.Credentials, Function>]\n *     a list of credentials objects or functions that return credentials\n *     objects. If the provider is a function, the function will be\n *     executed lazily when the provider needs to be checked for valid\n *     credentials. By default, this object will be set to the\n *     {defaultProviders}.\n *   @see defaultProviders\n */\n\n\nAWS.CredentialProviderChain = AWS.util.inherit(AWS.Credentials, {\n  /**\n   * Creates a new CredentialProviderChain with a default set of providers\n   * specified by {defaultProviders}.\n   */\n  constructor: function CredentialProviderChain(providers) {\n    if (providers) {\n      this.providers = providers;\n    } else {\n      this.providers = AWS.CredentialProviderChain.defaultProviders.slice(0);\n    }\n\n    this.resolveCallbacks = [];\n  },\n\n  /**\n   * @!method  resolvePromise()\n   *   Returns a 'thenable' promise.\n   *   Resolves the provider chain by searching for the first set of\n   *   credentials in {providers}.\n   *\n   *   Two callbacks can be provided to the `then` method on the returned promise.\n   *   The first callback will be called if the promise is fulfilled, and the second\n   *   callback will be called if the promise is rejected.\n   *   @callback fulfilledCallback function(credentials)\n   *     Called if the promise is fulfilled and the provider resolves the chain\n   *     to a credentials object\n   *     @param credentials [AWS.Credentials] the credentials object resolved\n   *       by the provider chain.\n   *   @callback rejectedCallback function(error)\n   *     Called if the promise is rejected.\n   *     @param err [Error] the error object returned if no credentials are found.\n   *   @return [Promise] A promise that represents the state of the `resolve` method call.\n   *   @example Calling the `resolvePromise` method.\n   *     var promise = chain.resolvePromise();\n   *     promise.then(function(credentials) { ... }, function(err) { ... });\n   */\n\n  /**\n   * Resolves the provider chain by searching for the first set of\n   * credentials in {providers}.\n   *\n   * @callback callback function(err, credentials)\n   *   Called when the provider resolves the chain to a credentials object\n   *   or null if no credentials can be found.\n   *\n   *   @param err [Error] the error object returned if no credentials are\n   *     found.\n   *   @param credentials [AWS.Credentials] the credentials object resolved\n   *     by the provider chain.\n   * @return [AWS.CredentialProviderChain] the provider, for chaining.\n   */\n  resolve: function resolve(callback) {\n    var self = this;\n\n    if (self.providers.length === 0) {\n      callback(new Error('No providers'));\n      return self;\n    }\n\n    if (self.resolveCallbacks.push(callback) === 1) {\n      var index = 0;\n      var providers = self.providers.slice(0);\n\n      function resolveNext(err, creds) {\n        if (!err && creds || index === providers.length) {\n          AWS.util.arrayEach(self.resolveCallbacks, function (callback) {\n            callback(err, creds);\n          });\n          self.resolveCallbacks.length = 0;\n          return;\n        }\n\n        var provider = providers[index++];\n\n        if (typeof provider === 'function') {\n          creds = provider.call();\n        } else {\n          creds = provider;\n        }\n\n        if (creds.get) {\n          creds.get(function (getErr) {\n            resolveNext(getErr, getErr ? null : creds);\n          });\n        } else {\n          resolveNext(null, creds);\n        }\n      }\n\n      resolveNext();\n    }\n\n    return self;\n  }\n});\n/**\n * The default set of providers used by a vanilla CredentialProviderChain.\n *\n * In the browser:\n *\n * ```javascript\n * AWS.CredentialProviderChain.defaultProviders = []\n * ```\n *\n * In Node.js:\n *\n * ```javascript\n * AWS.CredentialProviderChain.defaultProviders = [\n *   function () { return new AWS.EnvironmentCredentials('AWS'); },\n *   function () { return new AWS.EnvironmentCredentials('AMAZON'); },\n *   function () { return new AWS.SharedIniFileCredentials(); },\n *   function () { return new AWS.ECSCredentials(); },\n *   function () { return new AWS.ProcessCredentials(); },\n *   function () { return new AWS.EC2MetadataCredentials() }\n * ]\n * ```\n */\n\nAWS.CredentialProviderChain.defaultProviders = [];\n/**\n * @api private\n */\n\nAWS.CredentialProviderChain.addPromisesToClass = function addPromisesToClass(PromiseDependency) {\n  this.prototype.resolvePromise = AWS.util.promisifyMethod('resolve', PromiseDependency);\n};\n/**\n * @api private\n */\n\n\nAWS.CredentialProviderChain.deletePromisesFromClass = function deletePromisesFromClass() {\n  delete this.prototype.resolvePromise;\n};\n\nAWS.util.addPromises(AWS.CredentialProviderChain);","var AWS = require('../core');\n\nvar inherit = AWS.util.inherit;\n/**\n * @api private\n */\n\nAWS.Signers.V3 = inherit(AWS.Signers.RequestSigner, {\n  addAuthorization: function addAuthorization(credentials, date) {\n    var datetime = AWS.util.date.rfc822(date);\n    this.request.headers['X-Amz-Date'] = datetime;\n\n    if (credentials.sessionToken) {\n      this.request.headers['x-amz-security-token'] = credentials.sessionToken;\n    }\n\n    this.request.headers['X-Amzn-Authorization'] = this.authorization(credentials, datetime);\n  },\n  authorization: function authorization(credentials) {\n    return 'AWS3 ' + 'AWSAccessKeyId=' + credentials.accessKeyId + ',' + 'Algorithm=HmacSHA256,' + 'SignedHeaders=' + this.signedHeaders() + ',' + 'Signature=' + this.signature(credentials);\n  },\n  signedHeaders: function signedHeaders() {\n    var headers = [];\n    AWS.util.arrayEach(this.headersToSign(), function iterator(h) {\n      headers.push(h.toLowerCase());\n    });\n    return headers.sort().join(';');\n  },\n  canonicalHeaders: function canonicalHeaders() {\n    var headers = this.request.headers;\n    var parts = [];\n    AWS.util.arrayEach(this.headersToSign(), function iterator(h) {\n      parts.push(h.toLowerCase().trim() + ':' + String(headers[h]).trim());\n    });\n    return parts.sort().join('\\n') + '\\n';\n  },\n  headersToSign: function headersToSign() {\n    var headers = [];\n    AWS.util.each(this.request.headers, function iterator(k) {\n      if (k === 'Host' || k === 'Content-Encoding' || k.match(/^X-Amz/i)) {\n        headers.push(k);\n      }\n    });\n    return headers;\n  },\n  signature: function signature(credentials) {\n    return AWS.util.crypto.hmac(credentials.secretAccessKey, this.stringToSign(), 'base64');\n  },\n  stringToSign: function stringToSign() {\n    var parts = [];\n    parts.push(this.request.method);\n    parts.push('/');\n    parts.push('');\n    parts.push(this.canonicalHeaders());\n    parts.push(this.request.body);\n    return AWS.util.crypto.sha256(parts.join('\\n'));\n  }\n});\n/**\n * @api private\n */\n\nmodule.exports = AWS.Signers.V3;","var AWS = require('../core');\n\nvar inherit = AWS.util.inherit;\n/**\n * @api private\n */\n\nAWS.Signers.RequestSigner = inherit({\n  constructor: function RequestSigner(request) {\n    this.request = request;\n  },\n  setServiceClientId: function setServiceClientId(id) {\n    this.serviceClientId = id;\n  },\n  getServiceClientId: function getServiceClientId() {\n    return this.serviceClientId;\n  }\n});\n\nAWS.Signers.RequestSigner.getVersion = function getVersion(version) {\n  switch (version) {\n    case 'v2':\n      return AWS.Signers.V2;\n\n    case 'v3':\n      return AWS.Signers.V3;\n\n    case 's3v4':\n      return AWS.Signers.V4;\n\n    case 'v4':\n      return AWS.Signers.V4;\n\n    case 's3':\n      return AWS.Signers.S3;\n\n    case 'v3https':\n      return AWS.Signers.V3Https;\n  }\n\n  throw new Error('Unknown signing version ' + version);\n};\n\nrequire('./v2');\n\nrequire('./v3');\n\nrequire('./v3https');\n\nrequire('./v4');\n\nrequire('./s3');\n\nrequire('./presign');","var scope = typeof global !== \"undefined\" && global || typeof self !== \"undefined\" && self || window;\nvar apply = Function.prototype.apply; // DOM APIs, for completeness\n\nexports.setTimeout = function () {\n  return new Timeout(apply.call(setTimeout, scope, arguments), clearTimeout);\n};\n\nexports.setInterval = function () {\n  return new Timeout(apply.call(setInterval, scope, arguments), clearInterval);\n};\n\nexports.clearTimeout = exports.clearInterval = function (timeout) {\n  if (timeout) {\n    timeout.close();\n  }\n};\n\nfunction Timeout(id, clearFn) {\n  this._id = id;\n  this._clearFn = clearFn;\n}\n\nTimeout.prototype.unref = Timeout.prototype.ref = function () {};\n\nTimeout.prototype.close = function () {\n  this._clearFn.call(scope, this._id);\n}; // Does not start the time, just sets up the members needed.\n\n\nexports.enroll = function (item, msecs) {\n  clearTimeout(item._idleTimeoutId);\n  item._idleTimeout = msecs;\n};\n\nexports.unenroll = function (item) {\n  clearTimeout(item._idleTimeoutId);\n  item._idleTimeout = -1;\n};\n\nexports._unrefActive = exports.active = function (item) {\n  clearTimeout(item._idleTimeoutId);\n  var msecs = item._idleTimeout;\n\n  if (msecs >= 0) {\n    item._idleTimeoutId = setTimeout(function onTimeout() {\n      if (item._onTimeout) item._onTimeout();\n    }, msecs);\n  }\n}; // setimmediate attaches itself to the global object\n\n\nrequire(\"setimmediate\"); // On some exotic environments, it's not clear which object `setimmediate` was\n// able to install onto.  Search each possibility in the same order as the\n// `setimmediate` library.\n\n\nexports.setImmediate = typeof self !== \"undefined\" && self.setImmediate || typeof global !== \"undefined\" && global.setImmediate || this && this.setImmediate;\nexports.clearImmediate = typeof self !== \"undefined\" && self.clearImmediate || typeof global !== \"undefined\" && global.clearImmediate || this && this.clearImmediate;","var AWS = require('../core');\n/**\n * @api private\n */\n\n\nvar cachedSecret = {};\n/**\n * @api private\n */\n\nvar cacheQueue = [];\n/**\n * @api private\n */\n\nvar maxCacheEntries = 50;\n/**\n * @api private\n */\n\nvar v4Identifier = 'aws4_request';\n/**\n * @api private\n */\n\nmodule.exports = {\n  /**\n   * @api private\n   *\n   * @param date [String]\n   * @param region [String]\n   * @param serviceName [String]\n   * @return [String]\n   */\n  createScope: function createScope(date, region, serviceName) {\n    return [date.substr(0, 8), region, serviceName, v4Identifier].join('/');\n  },\n\n  /**\n   * @api private\n   *\n   * @param credentials [Credentials]\n   * @param date [String]\n   * @param region [String]\n   * @param service [String]\n   * @param shouldCache [Boolean]\n   * @return [String]\n   */\n  getSigningKey: function getSigningKey(credentials, date, region, service, shouldCache) {\n    var credsIdentifier = AWS.util.crypto.hmac(credentials.secretAccessKey, credentials.accessKeyId, 'base64');\n    var cacheKey = [credsIdentifier, date, region, service].join('_');\n    shouldCache = shouldCache !== false;\n\n    if (shouldCache && cacheKey in cachedSecret) {\n      return cachedSecret[cacheKey];\n    }\n\n    var kDate = AWS.util.crypto.hmac('AWS4' + credentials.secretAccessKey, date, 'buffer');\n    var kRegion = AWS.util.crypto.hmac(kDate, region, 'buffer');\n    var kService = AWS.util.crypto.hmac(kRegion, service, 'buffer');\n    var signingKey = AWS.util.crypto.hmac(kService, v4Identifier, 'buffer');\n\n    if (shouldCache) {\n      cachedSecret[cacheKey] = signingKey;\n      cacheQueue.push(cacheKey);\n\n      if (cacheQueue.length > maxCacheEntries) {\n        // remove the oldest entry (not the least recently used)\n        delete cachedSecret[cacheQueue.shift()];\n      }\n    }\n\n    return signingKey;\n  },\n\n  /**\n   * @api private\n   *\n   * Empties the derived signing key cache. Made available for testing purposes\n   * only.\n   */\n  emptyCache: function emptyCache() {\n    cachedSecret = {};\n    cacheQueue = [];\n  }\n};","/**\n * Convert array of 16 byte values to UUID string format of the form:\n * XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX\n */\nvar byteToHex = [];\n\nfor (var i = 0; i < 256; ++i) {\n  byteToHex[i] = (i + 0x100).toString(16).substr(1);\n}\n\nfunction bytesToUuid(buf, offset) {\n  var i = offset || 0;\n  var bth = byteToHex; // join used to fix memory issue caused by concatenation: https://bugs.chromium.org/p/v8/issues/detail?id=3175#c4\n\n  return [bth[buf[i++]], bth[buf[i++]], bth[buf[i++]], bth[buf[i++]], '-', bth[buf[i++]], bth[buf[i++]], '-', bth[buf[i++]], bth[buf[i++]], '-', bth[buf[i++]], bth[buf[i++]], '-', bth[buf[i++]], bth[buf[i++]], bth[buf[i++]], bth[buf[i++]], bth[buf[i++]], bth[buf[i++]]].join('');\n}\n\nmodule.exports = bytesToUuid;",";\n\n(function (root, factory) {\n  if (typeof exports === \"object\") {\n    // CommonJS\n    module.exports = exports = factory(require(\"./core\"));\n  } else if (typeof define === \"function\" && define.amd) {\n    // AMD\n    define([\"./core\"], factory);\n  } else {\n    // Global (browser)\n    factory(root.CryptoJS);\n  }\n})(this, function (CryptoJS) {\n  (function () {\n    // Shortcuts\n    var C = CryptoJS;\n    var C_lib = C.lib;\n    var Base = C_lib.Base;\n    var C_enc = C.enc;\n    var Utf8 = C_enc.Utf8;\n    var C_algo = C.algo;\n    /**\n     * HMAC algorithm.\n     */\n\n    var HMAC = C_algo.HMAC = Base.extend({\n      /**\n       * Initializes a newly created HMAC.\n       *\n       * @param {Hasher} hasher The hash algorithm to use.\n       * @param {WordArray|string} key The secret key.\n       *\n       * @example\n       *\n       *     var hmacHasher = CryptoJS.algo.HMAC.create(CryptoJS.algo.SHA256, key);\n       */\n      init: function init(hasher, key) {\n        // Init hasher\n        hasher = this._hasher = new hasher.init(); // Convert string to WordArray, else assume WordArray already\n\n        if (typeof key == 'string') {\n          key = Utf8.parse(key);\n        } // Shortcuts\n\n\n        var hasherBlockSize = hasher.blockSize;\n        var hasherBlockSizeBytes = hasherBlockSize * 4; // Allow arbitrary length keys\n\n        if (key.sigBytes > hasherBlockSizeBytes) {\n          key = hasher.finalize(key);\n        } // Clamp excess bits\n\n\n        key.clamp(); // Clone key for inner and outer pads\n\n        var oKey = this._oKey = key.clone();\n        var iKey = this._iKey = key.clone(); // Shortcuts\n\n        var oKeyWords = oKey.words;\n        var iKeyWords = iKey.words; // XOR keys with pad constants\n\n        for (var i = 0; i < hasherBlockSize; i++) {\n          oKeyWords[i] ^= 0x5c5c5c5c;\n          iKeyWords[i] ^= 0x36363636;\n        }\n\n        oKey.sigBytes = iKey.sigBytes = hasherBlockSizeBytes; // Set initial values\n\n        this.reset();\n      },\n\n      /**\n       * Resets this HMAC to its initial state.\n       *\n       * @example\n       *\n       *     hmacHasher.reset();\n       */\n      reset: function reset() {\n        // Shortcut\n        var hasher = this._hasher; // Reset\n\n        hasher.reset();\n        hasher.update(this._iKey);\n      },\n\n      /**\n       * Updates this HMAC with a message.\n       *\n       * @param {WordArray|string} messageUpdate The message to append.\n       *\n       * @return {HMAC} This HMAC instance.\n       *\n       * @example\n       *\n       *     hmacHasher.update('message');\n       *     hmacHasher.update(wordArray);\n       */\n      update: function update(messageUpdate) {\n        this._hasher.update(messageUpdate); // Chainable\n\n\n        return this;\n      },\n\n      /**\n       * Finalizes the HMAC computation.\n       * Note that the finalize operation is effectively a destructive, read-once operation.\n       *\n       * @param {WordArray|string} messageUpdate (Optional) A final message update.\n       *\n       * @return {WordArray} The HMAC.\n       *\n       * @example\n       *\n       *     var hmac = hmacHasher.finalize();\n       *     var hmac = hmacHasher.finalize('message');\n       *     var hmac = hmacHasher.finalize(wordArray);\n       */\n      finalize: function finalize(messageUpdate) {\n        // Shortcut\n        var hasher = this._hasher; // Compute HMAC\n\n        var innerHash = hasher.finalize(messageUpdate);\n        hasher.reset();\n        var hmac = hasher.finalize(this._oKey.clone().concat(innerHash));\n        return hmac;\n      }\n    });\n  })();\n});","var AWS = require('../core');\n\nvar util = require('../util');\n\nvar QueryParamSerializer = require('../query/query_param_serializer');\n\nvar Shape = require('../model/shape');\n\nvar populateHostPrefix = require('./helpers').populateHostPrefix;\n\nfunction buildRequest(req) {\n  var operation = req.service.api.operations[req.operation];\n  var httpRequest = req.httpRequest;\n  httpRequest.headers['Content-Type'] = 'application/x-www-form-urlencoded; charset=utf-8';\n  httpRequest.params = {\n    Version: req.service.api.apiVersion,\n    Action: operation.name\n  }; // convert the request parameters into a list of query params,\n  // e.g. Deeply.NestedParam.0.Name=value\n\n  var builder = new QueryParamSerializer();\n  builder.serialize(req.params, operation.input, function (name, value) {\n    httpRequest.params[name] = value;\n  });\n  httpRequest.body = util.queryParamsToString(httpRequest.params);\n  populateHostPrefix(req);\n}\n\nfunction extractError(resp) {\n  var data,\n      body = resp.httpResponse.body.toString();\n\n  if (body.match('<UnknownOperationException')) {\n    data = {\n      Code: 'UnknownOperation',\n      Message: 'Unknown operation ' + resp.request.operation\n    };\n  } else {\n    try {\n      data = new AWS.XML.Parser().parse(body);\n    } catch (e) {\n      data = {\n        Code: resp.httpResponse.statusCode,\n        Message: resp.httpResponse.statusMessage\n      };\n    }\n  }\n\n  if (data.requestId && !resp.requestId) resp.requestId = data.requestId;\n  if (data.Errors) data = data.Errors;\n  if (data.Error) data = data.Error;\n\n  if (data.Code) {\n    resp.error = util.error(new Error(), {\n      code: data.Code,\n      message: data.Message\n    });\n  } else {\n    resp.error = util.error(new Error(), {\n      code: resp.httpResponse.statusCode,\n      message: null\n    });\n  }\n}\n\nfunction extractData(resp) {\n  var req = resp.request;\n  var operation = req.service.api.operations[req.operation];\n  var shape = operation.output || {};\n  var origRules = shape;\n\n  if (origRules.resultWrapper) {\n    var tmp = Shape.create({\n      type: 'structure'\n    });\n    tmp.members[origRules.resultWrapper] = shape;\n    tmp.memberNames = [origRules.resultWrapper];\n    util.property(shape, 'name', shape.resultWrapper);\n    shape = tmp;\n  }\n\n  var parser = new AWS.XML.Parser(); // TODO: Refactor XML Parser to parse RequestId from response.\n\n  if (shape && shape.members && !shape.members._XAMZRequestId) {\n    var requestIdShape = Shape.create({\n      type: 'string'\n    }, {\n      api: {\n        protocol: 'query'\n      }\n    }, 'requestId');\n    shape.members._XAMZRequestId = requestIdShape;\n  }\n\n  var data = parser.parse(resp.httpResponse.body.toString(), shape);\n  resp.requestId = data._XAMZRequestId || data.requestId;\n  if (data._XAMZRequestId) delete data._XAMZRequestId;\n\n  if (origRules.resultWrapper) {\n    if (data[origRules.resultWrapper]) {\n      util.update(data, data[origRules.resultWrapper]);\n      delete data[origRules.resultWrapper];\n    }\n  }\n\n  resp.data = data;\n}\n/**\n * @api private\n */\n\n\nmodule.exports = {\n  buildRequest: buildRequest,\n  extractError: extractError,\n  extractData: extractData\n};","(function (global, undefined) {\n  \"use strict\";\n\n  if (global.setImmediate) {\n    return;\n  }\n\n  var nextHandle = 1; // Spec says greater than zero\n\n  var tasksByHandle = {};\n  var currentlyRunningATask = false;\n  var doc = global.document;\n  var registerImmediate;\n\n  function setImmediate(callback) {\n    // Callback can either be a function or a string\n    if (typeof callback !== \"function\") {\n      callback = new Function(\"\" + callback);\n    } // Copy function arguments\n\n\n    var args = new Array(arguments.length - 1);\n\n    for (var i = 0; i < args.length; i++) {\n      args[i] = arguments[i + 1];\n    } // Store and register the task\n\n\n    var task = {\n      callback: callback,\n      args: args\n    };\n    tasksByHandle[nextHandle] = task;\n    registerImmediate(nextHandle);\n    return nextHandle++;\n  }\n\n  function clearImmediate(handle) {\n    delete tasksByHandle[handle];\n  }\n\n  function run(task) {\n    var callback = task.callback;\n    var args = task.args;\n\n    switch (args.length) {\n      case 0:\n        callback();\n        break;\n\n      case 1:\n        callback(args[0]);\n        break;\n\n      case 2:\n        callback(args[0], args[1]);\n        break;\n\n      case 3:\n        callback(args[0], args[1], args[2]);\n        break;\n\n      default:\n        callback.apply(undefined, args);\n        break;\n    }\n  }\n\n  function runIfPresent(handle) {\n    // From the spec: \"Wait until any invocations of this algorithm started before this one have completed.\"\n    // So if we're currently running a task, we'll need to delay this invocation.\n    if (currentlyRunningATask) {\n      // Delay by doing a setTimeout. setImmediate was tried instead, but in Firefox 7 it generated a\n      // \"too much recursion\" error.\n      setTimeout(runIfPresent, 0, handle);\n    } else {\n      var task = tasksByHandle[handle];\n\n      if (task) {\n        currentlyRunningATask = true;\n\n        try {\n          run(task);\n        } finally {\n          clearImmediate(handle);\n          currentlyRunningATask = false;\n        }\n      }\n    }\n  }\n\n  function installNextTickImplementation() {\n    registerImmediate = function registerImmediate(handle) {\n      process.nextTick(function () {\n        runIfPresent(handle);\n      });\n    };\n  }\n\n  function canUsePostMessage() {\n    // The test against `importScripts` prevents this implementation from being installed inside a web worker,\n    // where `global.postMessage` means something completely different and can't be used for this purpose.\n    if (global.postMessage && !global.importScripts) {\n      var postMessageIsAsynchronous = true;\n      var oldOnMessage = global.onmessage;\n\n      global.onmessage = function () {\n        postMessageIsAsynchronous = false;\n      };\n\n      global.postMessage(\"\", \"*\");\n      global.onmessage = oldOnMessage;\n      return postMessageIsAsynchronous;\n    }\n  }\n\n  function installPostMessageImplementation() {\n    // Installs an event handler on `global` for the `message` event: see\n    // * https://developer.mozilla.org/en/DOM/window.postMessage\n    // * http://www.whatwg.org/specs/web-apps/current-work/multipage/comms.html#crossDocumentMessages\n    var messagePrefix = \"setImmediate$\" + Math.random() + \"$\";\n\n    var onGlobalMessage = function onGlobalMessage(event) {\n      if (event.source === global && typeof event.data === \"string\" && event.data.indexOf(messagePrefix) === 0) {\n        runIfPresent(+event.data.slice(messagePrefix.length));\n      }\n    };\n\n    if (global.addEventListener) {\n      global.addEventListener(\"message\", onGlobalMessage, false);\n    } else {\n      global.attachEvent(\"onmessage\", onGlobalMessage);\n    }\n\n    registerImmediate = function registerImmediate(handle) {\n      global.postMessage(messagePrefix + handle, \"*\");\n    };\n  }\n\n  function installMessageChannelImplementation() {\n    var channel = new MessageChannel();\n\n    channel.port1.onmessage = function (event) {\n      var handle = event.data;\n      runIfPresent(handle);\n    };\n\n    registerImmediate = function registerImmediate(handle) {\n      channel.port2.postMessage(handle);\n    };\n  }\n\n  function installReadyStateChangeImplementation() {\n    var html = doc.documentElement;\n\n    registerImmediate = function registerImmediate(handle) {\n      // Create a <script> element; its readystatechange event will be fired asynchronously once it is inserted\n      // into the document. Do so, thus queuing up the task. Remember to clean up once it's been called.\n      var script = doc.createElement(\"script\");\n\n      script.onreadystatechange = function () {\n        runIfPresent(handle);\n        script.onreadystatechange = null;\n        html.removeChild(script);\n        script = null;\n      };\n\n      html.appendChild(script);\n    };\n  }\n\n  function installSetTimeoutImplementation() {\n    registerImmediate = function registerImmediate(handle) {\n      setTimeout(runIfPresent, 0, handle);\n    };\n  } // If supported, we should attach to the prototype of global, since that is where setTimeout et al. live.\n\n\n  var attachTo = Object.getPrototypeOf && Object.getPrototypeOf(global);\n  attachTo = attachTo && attachTo.setTimeout ? attachTo : global; // Don't get fooled by e.g. browserify environments.\n\n  if ({}.toString.call(global.process) === \"[object process]\") {\n    // For Node.js before 0.9\n    installNextTickImplementation();\n  } else if (canUsePostMessage()) {\n    // For non-IE10 modern browsers\n    installPostMessageImplementation();\n  } else if (global.MessageChannel) {\n    // For web workers, where supported\n    installMessageChannelImplementation();\n  } else if (doc && \"onreadystatechange\" in doc.createElement(\"script\")) {\n    // For IE 6–8\n    installReadyStateChangeImplementation();\n  } else {\n    // For older browsers\n    installSetTimeoutImplementation();\n  }\n\n  attachTo.setImmediate = setImmediate;\n  attachTo.clearImmediate = clearImmediate;\n})(typeof self === \"undefined\" ? typeof global === \"undefined\" ? this : global : self);","var Collection = require('./collection');\n\nvar Operation = require('./operation');\n\nvar Shape = require('./shape');\n\nvar Paginator = require('./paginator');\n\nvar ResourceWaiter = require('./resource_waiter');\n\nvar util = require('../util');\n\nvar property = util.property;\nvar memoizedProperty = util.memoizedProperty;\n\nfunction Api(api, options) {\n  var self = this;\n  api = api || {};\n  options = options || {};\n  options.api = this;\n  api.metadata = api.metadata || {};\n  property(this, 'isApi', true, false);\n  property(this, 'apiVersion', api.metadata.apiVersion);\n  property(this, 'endpointPrefix', api.metadata.endpointPrefix);\n  property(this, 'signingName', api.metadata.signingName);\n  property(this, 'globalEndpoint', api.metadata.globalEndpoint);\n  property(this, 'signatureVersion', api.metadata.signatureVersion);\n  property(this, 'jsonVersion', api.metadata.jsonVersion);\n  property(this, 'targetPrefix', api.metadata.targetPrefix);\n  property(this, 'protocol', api.metadata.protocol);\n  property(this, 'timestampFormat', api.metadata.timestampFormat);\n  property(this, 'xmlNamespaceUri', api.metadata.xmlNamespace);\n  property(this, 'abbreviation', api.metadata.serviceAbbreviation);\n  property(this, 'fullName', api.metadata.serviceFullName);\n  property(this, 'serviceId', api.metadata.serviceId);\n  memoizedProperty(this, 'className', function () {\n    var name = api.metadata.serviceAbbreviation || api.metadata.serviceFullName;\n    if (!name) return null;\n    name = name.replace(/^Amazon|AWS\\s*|\\(.*|\\s+|\\W+/g, '');\n    if (name === 'ElasticLoadBalancing') name = 'ELB';\n    return name;\n  });\n\n  function addEndpointOperation(name, operation) {\n    if (operation.endpointoperation === true) {\n      property(self, 'endpointOperation', util.string.lowerFirst(name));\n    }\n  }\n\n  property(this, 'operations', new Collection(api.operations, options, function (name, operation) {\n    return new Operation(name, operation, options);\n  }, util.string.lowerFirst, addEndpointOperation));\n  property(this, 'shapes', new Collection(api.shapes, options, function (name, shape) {\n    return Shape.create(shape, options);\n  }));\n  property(this, 'paginators', new Collection(api.paginators, options, function (name, paginator) {\n    return new Paginator(name, paginator, options);\n  }));\n  property(this, 'waiters', new Collection(api.waiters, options, function (name, waiter) {\n    return new ResourceWaiter(name, waiter, options);\n  }, util.string.lowerFirst));\n\n  if (options.documentation) {\n    property(this, 'documentation', api.documentation);\n    property(this, 'documentationUrl', api.documentationUrl);\n  }\n}\n/**\n * @api private\n */\n\n\nmodule.exports = Api;","module.exports = function(module) {\n\tif (!module.webpackPolyfill) {\n\t\tmodule.deprecate = function() {};\n\t\tmodule.paths = [];\n\t\t// module.parent = undefined by default\n\t\tif (!module.children) module.children = [];\n\t\tObject.defineProperty(module, \"loaded\", {\n\t\t\tenumerable: true,\n\t\t\tget: function() {\n\t\t\t\treturn module.l;\n\t\t\t}\n\t\t});\n\t\tObject.defineProperty(module, \"id\", {\n\t\t\tenumerable: true,\n\t\t\tget: function() {\n\t\t\t\treturn module.i;\n\t\t\t}\n\t\t});\n\t\tmodule.webpackPolyfill = 1;\n\t}\n\treturn module;\n};\n","var AWS = require('../core');\n\nvar EventEmitter = require('events').EventEmitter;\n\nrequire('../http');\n/**\n * @api private\n */\n\n\nAWS.XHRClient = AWS.util.inherit({\n  handleRequest: function handleRequest(httpRequest, httpOptions, callback, errCallback) {\n    var self = this;\n    var endpoint = httpRequest.endpoint;\n    var emitter = new EventEmitter();\n    var href = endpoint.protocol + '//' + endpoint.hostname;\n\n    if (endpoint.port !== 80 && endpoint.port !== 443) {\n      href += ':' + endpoint.port;\n    }\n\n    href += httpRequest.path;\n    var xhr = new XMLHttpRequest(),\n        headersEmitted = false;\n    httpRequest.stream = xhr;\n    xhr.addEventListener('readystatechange', function () {\n      try {\n        if (xhr.status === 0) return; // 0 code is invalid\n      } catch (e) {\n        return;\n      }\n\n      if (this.readyState >= this.HEADERS_RECEIVED && !headersEmitted) {\n        emitter.statusCode = xhr.status;\n        emitter.headers = self.parseHeaders(xhr.getAllResponseHeaders());\n        emitter.emit('headers', emitter.statusCode, emitter.headers, xhr.statusText);\n        headersEmitted = true;\n      }\n\n      if (this.readyState === this.DONE) {\n        self.finishRequest(xhr, emitter);\n      }\n    }, false);\n    xhr.upload.addEventListener('progress', function (evt) {\n      emitter.emit('sendProgress', evt);\n    });\n    xhr.addEventListener('progress', function (evt) {\n      emitter.emit('receiveProgress', evt);\n    }, false);\n    xhr.addEventListener('timeout', function () {\n      errCallback(AWS.util.error(new Error('Timeout'), {\n        code: 'TimeoutError'\n      }));\n    }, false);\n    xhr.addEventListener('error', function () {\n      errCallback(AWS.util.error(new Error('Network Failure'), {\n        code: 'NetworkingError'\n      }));\n    }, false);\n    xhr.addEventListener('abort', function () {\n      errCallback(AWS.util.error(new Error('Request aborted'), {\n        code: 'RequestAbortedError'\n      }));\n    }, false);\n    callback(emitter);\n    xhr.open(httpRequest.method, href, httpOptions.xhrAsync !== false);\n    AWS.util.each(httpRequest.headers, function (key, value) {\n      if (key !== 'Content-Length' && key !== 'User-Agent' && key !== 'Host') {\n        xhr.setRequestHeader(key, value);\n      }\n    });\n\n    if (httpOptions.timeout && httpOptions.xhrAsync !== false) {\n      xhr.timeout = httpOptions.timeout;\n    }\n\n    if (httpOptions.xhrWithCredentials) {\n      xhr.withCredentials = true;\n    }\n\n    try {\n      xhr.responseType = 'arraybuffer';\n    } catch (e) {}\n\n    try {\n      if (httpRequest.body) {\n        xhr.send(httpRequest.body);\n      } else {\n        xhr.send();\n      }\n    } catch (err) {\n      if (httpRequest.body && typeof httpRequest.body.buffer === 'object') {\n        xhr.send(httpRequest.body.buffer); // send ArrayBuffer directly\n      } else {\n        throw err;\n      }\n    }\n\n    return emitter;\n  },\n  parseHeaders: function parseHeaders(rawHeaders) {\n    var headers = {};\n    AWS.util.arrayEach(rawHeaders.split(/\\r?\\n/), function (line) {\n      var key = line.split(':', 1)[0];\n      var value = line.substring(key.length + 2);\n      if (key.length > 0) headers[key.toLowerCase()] = value;\n    });\n    return headers;\n  },\n  finishRequest: function finishRequest(xhr, emitter) {\n    var buffer;\n\n    if (xhr.responseType === 'arraybuffer' && xhr.response) {\n      var ab = xhr.response;\n      buffer = new AWS.util.Buffer(ab.byteLength);\n      var view = new Uint8Array(ab);\n\n      for (var i = 0; i < buffer.length; ++i) {\n        buffer[i] = view[i];\n      }\n    }\n\n    try {\n      if (!buffer && typeof xhr.responseText === 'string') {\n        buffer = new AWS.util.Buffer(xhr.responseText);\n      }\n    } catch (e) {}\n\n    if (buffer) emitter.emit('data', buffer);\n    emitter.emit('end');\n  }\n});\n/**\n * @api private\n */\n\nAWS.HttpClient.prototype = AWS.XHRClient.prototype;\n/**\n * @api private\n */\n\nAWS.HttpClient.streamsApiVersion = 1;","var memoizedProperty = require('../util').memoizedProperty;\n\nfunction memoize(name, value, factory, nameTr) {\n  memoizedProperty(this, nameTr(name), function () {\n    return factory(name, value);\n  });\n}\n\nfunction Collection(iterable, options, factory, nameTr, callback) {\n  nameTr = nameTr || String;\n  var self = this;\n\n  for (var id in iterable) {\n    if (Object.prototype.hasOwnProperty.call(iterable, id)) {\n      memoize.call(self, id, iterable[id], factory, nameTr);\n      if (callback) callback(id, iterable[id]);\n    }\n  }\n}\n/**\n * @api private\n */\n\n\nmodule.exports = Collection;","var AWS = require('./core');\n/**\n * @api private\n */\n\n\nAWS.ParamValidator = AWS.util.inherit({\n  /**\n   * Create a new validator object.\n   *\n   * @param validation [Boolean|map] whether input parameters should be\n   *     validated against the operation description before sending the\n   *     request. Pass a map to enable any of the following specific\n   *     validation features:\n   *\n   *     * **min** [Boolean] &mdash; Validates that a value meets the min\n   *       constraint. This is enabled by default when paramValidation is set\n   *       to `true`.\n   *     * **max** [Boolean] &mdash; Validates that a value meets the max\n   *       constraint.\n   *     * **pattern** [Boolean] &mdash; Validates that a string value matches a\n   *       regular expression.\n   *     * **enum** [Boolean] &mdash; Validates that a string value matches one\n   *       of the allowable enum values.\n   */\n  constructor: function ParamValidator(validation) {\n    if (validation === true || validation === undefined) {\n      validation = {\n        'min': true\n      };\n    }\n\n    this.validation = validation;\n  },\n  validate: function validate(shape, params, context) {\n    this.errors = [];\n    this.validateMember(shape, params || {}, context || 'params');\n\n    if (this.errors.length > 1) {\n      var msg = this.errors.join('\\n* ');\n      msg = 'There were ' + this.errors.length + ' validation errors:\\n* ' + msg;\n      throw AWS.util.error(new Error(msg), {\n        code: 'MultipleValidationErrors',\n        errors: this.errors\n      });\n    } else if (this.errors.length === 1) {\n      throw this.errors[0];\n    } else {\n      return true;\n    }\n  },\n  fail: function fail(code, message) {\n    this.errors.push(AWS.util.error(new Error(message), {\n      code: code\n    }));\n  },\n  validateStructure: function validateStructure(shape, params, context) {\n    this.validateType(params, context, ['object'], 'structure');\n    var paramName;\n\n    for (var i = 0; shape.required && i < shape.required.length; i++) {\n      paramName = shape.required[i];\n      var value = params[paramName];\n\n      if (value === undefined || value === null) {\n        this.fail('MissingRequiredParameter', 'Missing required key \\'' + paramName + '\\' in ' + context);\n      }\n    } // validate hash members\n\n\n    for (paramName in params) {\n      if (!Object.prototype.hasOwnProperty.call(params, paramName)) continue;\n      var paramValue = params[paramName],\n          memberShape = shape.members[paramName];\n\n      if (memberShape !== undefined) {\n        var memberContext = [context, paramName].join('.');\n        this.validateMember(memberShape, paramValue, memberContext);\n      } else {\n        this.fail('UnexpectedParameter', 'Unexpected key \\'' + paramName + '\\' found in ' + context);\n      }\n    }\n\n    return true;\n  },\n  validateMember: function validateMember(shape, param, context) {\n    switch (shape.type) {\n      case 'structure':\n        return this.validateStructure(shape, param, context);\n\n      case 'list':\n        return this.validateList(shape, param, context);\n\n      case 'map':\n        return this.validateMap(shape, param, context);\n\n      default:\n        return this.validateScalar(shape, param, context);\n    }\n  },\n  validateList: function validateList(shape, params, context) {\n    if (this.validateType(params, context, [Array])) {\n      this.validateRange(shape, params.length, context, 'list member count'); // validate array members\n\n      for (var i = 0; i < params.length; i++) {\n        this.validateMember(shape.member, params[i], context + '[' + i + ']');\n      }\n    }\n  },\n  validateMap: function validateMap(shape, params, context) {\n    if (this.validateType(params, context, ['object'], 'map')) {\n      // Build up a count of map members to validate range traits.\n      var mapCount = 0;\n\n      for (var param in params) {\n        if (!Object.prototype.hasOwnProperty.call(params, param)) continue; // Validate any map key trait constraints\n\n        this.validateMember(shape.key, param, context + '[key=\\'' + param + '\\']');\n        this.validateMember(shape.value, params[param], context + '[\\'' + param + '\\']');\n        mapCount++;\n      }\n\n      this.validateRange(shape, mapCount, context, 'map member count');\n    }\n  },\n  validateScalar: function validateScalar(shape, value, context) {\n    switch (shape.type) {\n      case null:\n      case undefined:\n      case 'string':\n        return this.validateString(shape, value, context);\n\n      case 'base64':\n      case 'binary':\n        return this.validatePayload(value, context);\n\n      case 'integer':\n      case 'float':\n        return this.validateNumber(shape, value, context);\n\n      case 'boolean':\n        return this.validateType(value, context, ['boolean']);\n\n      case 'timestamp':\n        return this.validateType(value, context, [Date, /^\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}(\\.\\d+)?Z$/, 'number'], 'Date object, ISO-8601 string, or a UNIX timestamp');\n\n      default:\n        return this.fail('UnkownType', 'Unhandled type ' + shape.type + ' for ' + context);\n    }\n  },\n  validateString: function validateString(shape, value, context) {\n    var validTypes = ['string'];\n\n    if (shape.isJsonValue) {\n      validTypes = validTypes.concat(['number', 'object', 'boolean']);\n    }\n\n    if (value !== null && this.validateType(value, context, validTypes)) {\n      this.validateEnum(shape, value, context);\n      this.validateRange(shape, value.length, context, 'string length');\n      this.validatePattern(shape, value, context);\n      this.validateUri(shape, value, context);\n    }\n  },\n  validateUri: function validateUri(shape, value, context) {\n    if (shape['location'] === 'uri') {\n      if (value.length === 0) {\n        this.fail('UriParameterError', 'Expected uri parameter to have length >= 1,' + ' but found \"' + value + '\" for ' + context);\n      }\n    }\n  },\n  validatePattern: function validatePattern(shape, value, context) {\n    if (this.validation['pattern'] && shape['pattern'] !== undefined) {\n      if (!new RegExp(shape['pattern']).test(value)) {\n        this.fail('PatternMatchError', 'Provided value \"' + value + '\" ' + 'does not match regex pattern /' + shape['pattern'] + '/ for ' + context);\n      }\n    }\n  },\n  validateRange: function validateRange(shape, value, context, descriptor) {\n    if (this.validation['min']) {\n      if (shape['min'] !== undefined && value < shape['min']) {\n        this.fail('MinRangeError', 'Expected ' + descriptor + ' >= ' + shape['min'] + ', but found ' + value + ' for ' + context);\n      }\n    }\n\n    if (this.validation['max']) {\n      if (shape['max'] !== undefined && value > shape['max']) {\n        this.fail('MaxRangeError', 'Expected ' + descriptor + ' <= ' + shape['max'] + ', but found ' + value + ' for ' + context);\n      }\n    }\n  },\n  validateEnum: function validateRange(shape, value, context) {\n    if (this.validation['enum'] && shape['enum'] !== undefined) {\n      // Fail if the string value is not present in the enum list\n      if (shape['enum'].indexOf(value) === -1) {\n        this.fail('EnumError', 'Found string value of ' + value + ', but ' + 'expected ' + shape['enum'].join('|') + ' for ' + context);\n      }\n    }\n  },\n  validateType: function validateType(value, context, acceptedTypes, type) {\n    // We will not log an error for null or undefined, but we will return\n    // false so that callers know that the expected type was not strictly met.\n    if (value === null || value === undefined) return false;\n    var foundInvalidType = false;\n\n    for (var i = 0; i < acceptedTypes.length; i++) {\n      if (typeof acceptedTypes[i] === 'string') {\n        if (typeof value === acceptedTypes[i]) return true;\n      } else if (acceptedTypes[i] instanceof RegExp) {\n        if ((value || '').toString().match(acceptedTypes[i])) return true;\n      } else {\n        if (value instanceof acceptedTypes[i]) return true;\n        if (AWS.util.isType(value, acceptedTypes[i])) return true;\n        if (!type && !foundInvalidType) acceptedTypes = acceptedTypes.slice();\n        acceptedTypes[i] = AWS.util.typeName(acceptedTypes[i]);\n      }\n\n      foundInvalidType = true;\n    }\n\n    var acceptedType = type;\n\n    if (!acceptedType) {\n      acceptedType = acceptedTypes.join(', ').replace(/,([^,]+)$/, ', or$1');\n    }\n\n    var vowel = acceptedType.match(/^[aeiou]/i) ? 'n' : '';\n    this.fail('InvalidParameterType', 'Expected ' + context + ' to be a' + vowel + ' ' + acceptedType);\n    return false;\n  },\n  validateNumber: function validateNumber(shape, value, context) {\n    if (value === null || value === undefined) return;\n\n    if (typeof value === 'string') {\n      var castedValue = parseFloat(value);\n      if (castedValue.toString() === value) value = castedValue;\n    }\n\n    if (this.validateType(value, context, ['number'])) {\n      this.validateRange(shape, value, context, 'numeric value');\n    }\n  },\n  validatePayload: function validatePayload(value, context) {\n    if (value === null || value === undefined) return;\n    if (typeof value === 'string') return;\n    if (value && typeof value.byteLength === 'number') return; // typed arrays\n\n    if (AWS.util.isNode()) {\n      // special check for buffer/stream in Node.js\n      var Stream = AWS.util.stream.Stream;\n      if (AWS.util.Buffer.isBuffer(value) || value instanceof Stream) return;\n    } else {\n      if (typeof Blob !== void 0 && value instanceof Blob) return;\n    }\n\n    var types = ['Buffer', 'Stream', 'File', 'Blob', 'ArrayBuffer', 'DataView'];\n\n    if (value) {\n      for (var i = 0; i < types.length; i++) {\n        if (AWS.util.isType(value, types[i])) return;\n        if (AWS.util.typeName(value.constructor) === types[i]) return;\n      }\n    }\n\n    this.fail('InvalidParameterType', 'Expected ' + context + ' to be a ' + 'string, Buffer, Stream, Blob, or typed array object');\n  }\n});","var AWS = require('./core');\n\nvar inherit = AWS.util.inherit;\n\nvar jmespath = require('jmespath');\n/**\n * This class encapsulates the response information\n * from a service request operation sent through {AWS.Request}.\n * The response object has two main properties for getting information\n * back from a request:\n *\n * ## The `data` property\n *\n * The `response.data` property contains the serialized object data\n * retrieved from the service request. For instance, for an\n * Amazon DynamoDB `listTables` method call, the response data might\n * look like:\n *\n * ```\n * > resp.data\n * { TableNames:\n *    [ 'table1', 'table2', ... ] }\n * ```\n *\n * The `data` property can be null if an error occurs (see below).\n *\n * ## The `error` property\n *\n * In the event of a service error (or transfer error), the\n * `response.error` property will be filled with the given\n * error data in the form:\n *\n * ```\n * { code: 'SHORT_UNIQUE_ERROR_CODE',\n *   message: 'Some human readable error message' }\n * ```\n *\n * In the case of an error, the `data` property will be `null`.\n * Note that if you handle events that can be in a failure state,\n * you should always check whether `response.error` is set\n * before attempting to access the `response.data` property.\n *\n * @!attribute data\n *   @readonly\n *   @!group Data Properties\n *   @note Inside of a {AWS.Request~httpData} event, this\n *     property contains a single raw packet instead of the\n *     full de-serialized service response.\n *   @return [Object] the de-serialized response data\n *     from the service.\n *\n * @!attribute error\n *   An structure containing information about a service\n *   or networking error.\n *   @readonly\n *   @!group Data Properties\n *   @note This attribute is only filled if a service or\n *     networking error occurs.\n *   @return [Error]\n *     * code [String] a unique short code representing the\n *       error that was emitted.\n *     * message [String] a longer human readable error message\n *     * retryable [Boolean] whether the error message is\n *       retryable.\n *     * statusCode [Numeric] in the case of a request that reached the service,\n *       this value contains the response status code.\n *     * time [Date] the date time object when the error occurred.\n *     * hostname [String] set when a networking error occurs to easily\n *       identify the endpoint of the request.\n *     * region [String] set when a networking error occurs to easily\n *       identify the region of the request.\n *\n * @!attribute requestId\n *   @readonly\n *   @!group Data Properties\n *   @return [String] the unique request ID associated with the response.\n *     Log this value when debugging requests for AWS support.\n *\n * @!attribute retryCount\n *   @readonly\n *   @!group Operation Properties\n *   @return [Integer] the number of retries that were\n *     attempted before the request was completed.\n *\n * @!attribute redirectCount\n *   @readonly\n *   @!group Operation Properties\n *   @return [Integer] the number of redirects that were\n *     followed before the request was completed.\n *\n * @!attribute httpResponse\n *   @readonly\n *   @!group HTTP Properties\n *   @return [AWS.HttpResponse] the raw HTTP response object\n *     containing the response headers and body information\n *     from the server.\n *\n * @see AWS.Request\n */\n\n\nAWS.Response = inherit({\n  /**\n   * @api private\n   */\n  constructor: function Response(request) {\n    this.request = request;\n    this.data = null;\n    this.error = null;\n    this.retryCount = 0;\n    this.redirectCount = 0;\n    this.httpResponse = new AWS.HttpResponse();\n\n    if (request) {\n      this.maxRetries = request.service.numRetries();\n      this.maxRedirects = request.service.config.maxRedirects;\n    }\n  },\n\n  /**\n   * Creates a new request for the next page of response data, calling the\n   * callback with the page data if a callback is provided.\n   *\n   * @callback callback function(err, data)\n   *   Called when a page of data is returned from the next request.\n   *\n   *   @param err [Error] an error object, if an error occurred in the request\n   *   @param data [Object] the next page of data, or null, if there are no\n   *     more pages left.\n   * @return [AWS.Request] the request object for the next page of data\n   * @return [null] if no callback is provided and there are no pages left\n   *   to retrieve.\n   * @since v1.4.0\n   */\n  nextPage: function nextPage(callback) {\n    var config;\n    var service = this.request.service;\n    var operation = this.request.operation;\n\n    try {\n      config = service.paginationConfig(operation, true);\n    } catch (e) {\n      this.error = e;\n    }\n\n    if (!this.hasNextPage()) {\n      if (callback) callback(this.error, null);else if (this.error) throw this.error;\n      return null;\n    }\n\n    var params = AWS.util.copy(this.request.params);\n\n    if (!this.nextPageTokens) {\n      return callback ? callback(null, null) : null;\n    } else {\n      var inputTokens = config.inputToken;\n      if (typeof inputTokens === 'string') inputTokens = [inputTokens];\n\n      for (var i = 0; i < inputTokens.length; i++) {\n        params[inputTokens[i]] = this.nextPageTokens[i];\n      }\n\n      return service.makeRequest(this.request.operation, params, callback);\n    }\n  },\n\n  /**\n   * @return [Boolean] whether more pages of data can be returned by further\n   *   requests\n   * @since v1.4.0\n   */\n  hasNextPage: function hasNextPage() {\n    this.cacheNextPageTokens();\n    if (this.nextPageTokens) return true;\n    if (this.nextPageTokens === undefined) return undefined;else return false;\n  },\n\n  /**\n   * @api private\n   */\n  cacheNextPageTokens: function cacheNextPageTokens() {\n    if (Object.prototype.hasOwnProperty.call(this, 'nextPageTokens')) return this.nextPageTokens;\n    this.nextPageTokens = undefined;\n    var config = this.request.service.paginationConfig(this.request.operation);\n    if (!config) return this.nextPageTokens;\n    this.nextPageTokens = null;\n\n    if (config.moreResults) {\n      if (!jmespath.search(this.data, config.moreResults)) {\n        return this.nextPageTokens;\n      }\n    }\n\n    var exprs = config.outputToken;\n    if (typeof exprs === 'string') exprs = [exprs];\n    AWS.util.arrayEach.call(this, exprs, function (expr) {\n      var output = jmespath.search(this.data, expr);\n\n      if (output) {\n        this.nextPageTokens = this.nextPageTokens || [];\n        this.nextPageTokens.push(output);\n      }\n    });\n    return this.nextPageTokens;\n  }\n});","var Buffer = require('buffer/').Buffer;\n/**\n * This is a polyfill for the static method `isView` of `ArrayBuffer`, which is\n * e.g. missing in IE 10.\n *\n * @api private\n */\n\n\nif (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'undefined') {\n  ArrayBuffer.isView = function (arg) {\n    return viewStrings.indexOf(Object.prototype.toString.call(arg)) > -1;\n  };\n}\n/**\n * @api private\n */\n\n\nvar viewStrings = ['[object Int8Array]', '[object Uint8Array]', '[object Uint8ClampedArray]', '[object Int16Array]', '[object Uint16Array]', '[object Int32Array]', '[object Uint32Array]', '[object Float32Array]', '[object Float64Array]', '[object DataView]'];\n/**\n * @api private\n */\n\nfunction isEmptyData(data) {\n  if (typeof data === 'string') {\n    return data.length === 0;\n  }\n\n  return data.byteLength === 0;\n}\n/**\n * @api private\n */\n\n\nfunction convertToBuffer(data) {\n  if (typeof data === 'string') {\n    data = new Buffer(data, 'utf8');\n  }\n\n  if (ArrayBuffer.isView(data)) {\n    return new Uint8Array(data.buffer, data.byteOffset, data.byteLength / Uint8Array.BYTES_PER_ELEMENT);\n  }\n\n  return new Uint8Array(data);\n}\n/**\n * @api private\n */\n\n\nmodule.exports = exports = {\n  isEmptyData: isEmptyData,\n  convertToBuffer: convertToBuffer\n};","// Unique ID creation requires a high quality random # generator.  In the\n// browser this is a little complicated due to unknown quality of Math.random()\n// and inconsistent support for the `crypto` API.  We do the best we can via\n// feature-detection\n// getRandomValues needs to be invoked in a context where \"this\" is a Crypto\n// implementation. Also, find the complete implementation of crypto on IE11.\nvar getRandomValues = typeof crypto != 'undefined' && crypto.getRandomValues && crypto.getRandomValues.bind(crypto) || typeof msCrypto != 'undefined' && typeof window.msCrypto.getRandomValues == 'function' && msCrypto.getRandomValues.bind(msCrypto);\n\nif (getRandomValues) {\n  // WHATWG crypto RNG - http://wiki.whatwg.org/wiki/Crypto\n  var rnds8 = new Uint8Array(16); // eslint-disable-line no-undef\n\n  module.exports = function whatwgRNG() {\n    getRandomValues(rnds8);\n    return rnds8;\n  };\n} else {\n  // Math.random()-based (RNG)\n  //\n  // If all else fails, use Math.random().  It's fast, but is of unspecified\n  // quality.\n  var rnds = new Array(16);\n\n  module.exports = function mathRNG() {\n    for (var i = 0, r; i < 16; i++) {\n      if ((i & 0x03) === 0) r = Math.random() * 0x100000000;\n      rnds[i] = r >>> ((i & 0x03) << 3) & 0xff;\n    }\n\n    return rnds;\n  };\n}","var escapeAttribute = require('./escape-attribute').escapeAttribute;\n/**\n * Represents an XML node.\n * @api private\n */\n\n\nfunction XmlNode(name, children) {\n  if (children === void 0) {\n    children = [];\n  }\n\n  this.name = name;\n  this.children = children;\n  this.attributes = {};\n}\n\nXmlNode.prototype.addAttribute = function (name, value) {\n  this.attributes[name] = value;\n  return this;\n};\n\nXmlNode.prototype.addChildNode = function (child) {\n  this.children.push(child);\n  return this;\n};\n\nXmlNode.prototype.removeAttribute = function (name) {\n  delete this.attributes[name];\n  return this;\n};\n\nXmlNode.prototype.toString = function () {\n  var hasChildren = Boolean(this.children.length);\n  var xmlText = '<' + this.name; // add attributes\n\n  var attributes = this.attributes;\n\n  for (var i = 0, attributeNames = Object.keys(attributes); i < attributeNames.length; i++) {\n    var attributeName = attributeNames[i];\n    var attribute = attributes[attributeName];\n\n    if (typeof attribute !== 'undefined' && attribute !== null) {\n      xmlText += ' ' + attributeName + '=\\\"' + escapeAttribute('' + attribute) + '\\\"';\n    }\n  }\n\n  return xmlText += !hasChildren ? '/>' : '>' + this.children.map(function (c) {\n    return c.toString();\n  }).join('') + '</' + this.name + '>';\n};\n/**\n * @api private\n */\n\n\nmodule.exports = {\n  XmlNode: XmlNode\n};","var AWS = require('./core');\n/**\n * @api private\n * @!method on(eventName, callback)\n *   Registers an event listener callback for the event given by `eventName`.\n *   Parameters passed to the callback function depend on the individual event\n *   being triggered. See the event documentation for those parameters.\n *\n *   @param eventName [String] the event name to register the listener for\n *   @param callback [Function] the listener callback function\n *   @param toHead [Boolean] attach the listener callback to the head of callback array if set to true.\n *     Default to be false.\n *   @return [AWS.SequentialExecutor] the same object for chaining\n */\n\n\nAWS.SequentialExecutor = AWS.util.inherit({\n  constructor: function SequentialExecutor() {\n    this._events = {};\n  },\n\n  /**\n   * @api private\n   */\n  listeners: function listeners(eventName) {\n    return this._events[eventName] ? this._events[eventName].slice(0) : [];\n  },\n  on: function on(eventName, listener, toHead) {\n    if (this._events[eventName]) {\n      toHead ? this._events[eventName].unshift(listener) : this._events[eventName].push(listener);\n    } else {\n      this._events[eventName] = [listener];\n    }\n\n    return this;\n  },\n  onAsync: function onAsync(eventName, listener, toHead) {\n    listener._isAsync = true;\n    return this.on(eventName, listener, toHead);\n  },\n  removeListener: function removeListener(eventName, listener) {\n    var listeners = this._events[eventName];\n\n    if (listeners) {\n      var length = listeners.length;\n      var position = -1;\n\n      for (var i = 0; i < length; ++i) {\n        if (listeners[i] === listener) {\n          position = i;\n        }\n      }\n\n      if (position > -1) {\n        listeners.splice(position, 1);\n      }\n    }\n\n    return this;\n  },\n  removeAllListeners: function removeAllListeners(eventName) {\n    if (eventName) {\n      delete this._events[eventName];\n    } else {\n      this._events = {};\n    }\n\n    return this;\n  },\n\n  /**\n   * @api private\n   */\n  emit: function emit(eventName, eventArgs, doneCallback) {\n    if (!doneCallback) doneCallback = function doneCallback() {};\n    var listeners = this.listeners(eventName);\n    var count = listeners.length;\n    this.callListeners(listeners, eventArgs, doneCallback);\n    return count > 0;\n  },\n\n  /**\n   * @api private\n   */\n  callListeners: function callListeners(listeners, args, doneCallback, prevError) {\n    var self = this;\n    var error = prevError || null;\n\n    function callNextListener(err) {\n      if (err) {\n        error = AWS.util.error(error || new Error(), err);\n\n        if (self._haltHandlersOnError) {\n          return doneCallback.call(self, error);\n        }\n      }\n\n      self.callListeners(listeners, args, doneCallback, error);\n    }\n\n    while (listeners.length > 0) {\n      var listener = listeners.shift();\n\n      if (listener._isAsync) {\n        // asynchronous listener\n        listener.apply(self, args.concat([callNextListener]));\n        return; // stop here, callNextListener will continue\n      } else {\n        // synchronous listener\n        try {\n          listener.apply(self, args);\n        } catch (err) {\n          error = AWS.util.error(error || new Error(), err);\n        }\n\n        if (error && self._haltHandlersOnError) {\n          doneCallback.call(self, error);\n          return;\n        }\n      }\n    }\n\n    doneCallback.call(self, error);\n  },\n\n  /**\n   * Adds or copies a set of listeners from another list of\n   * listeners or SequentialExecutor object.\n   *\n   * @param listeners [map<String,Array<Function>>, AWS.SequentialExecutor]\n   *   a list of events and callbacks, or an event emitter object\n   *   containing listeners to add to this emitter object.\n   * @return [AWS.SequentialExecutor] the emitter object, for chaining.\n   * @example Adding listeners from a map of listeners\n   *   emitter.addListeners({\n   *     event1: [function() { ... }, function() { ... }],\n   *     event2: [function() { ... }]\n   *   });\n   *   emitter.emit('event1'); // emitter has event1\n   *   emitter.emit('event2'); // emitter has event2\n   * @example Adding listeners from another emitter object\n   *   var emitter1 = new AWS.SequentialExecutor();\n   *   emitter1.on('event1', function() { ... });\n   *   emitter1.on('event2', function() { ... });\n   *   var emitter2 = new AWS.SequentialExecutor();\n   *   emitter2.addListeners(emitter1);\n   *   emitter2.emit('event1'); // emitter2 has event1\n   *   emitter2.emit('event2'); // emitter2 has event2\n   */\n  addListeners: function addListeners(listeners) {\n    var self = this; // extract listeners if parameter is an SequentialExecutor object\n\n    if (listeners._events) listeners = listeners._events;\n    AWS.util.each(listeners, function (event, callbacks) {\n      if (typeof callbacks === 'function') callbacks = [callbacks];\n      AWS.util.arrayEach(callbacks, function (callback) {\n        self.on(event, callback);\n      });\n    });\n    return self;\n  },\n\n  /**\n   * Registers an event with {on} and saves the callback handle function\n   * as a property on the emitter object using a given `name`.\n   *\n   * @param name [String] the property name to set on this object containing\n   *   the callback function handle so that the listener can be removed in\n   *   the future.\n   * @param (see on)\n   * @return (see on)\n   * @example Adding a named listener DATA_CALLBACK\n   *   var listener = function() { doSomething(); };\n   *   emitter.addNamedListener('DATA_CALLBACK', 'data', listener);\n   *\n   *   // the following prints: true\n   *   console.log(emitter.DATA_CALLBACK == listener);\n   */\n  addNamedListener: function addNamedListener(name, eventName, callback, toHead) {\n    this[name] = callback;\n    this.addListener(eventName, callback, toHead);\n    return this;\n  },\n\n  /**\n   * @api private\n   */\n  addNamedAsyncListener: function addNamedAsyncListener(name, eventName, callback, toHead) {\n    callback._isAsync = true;\n    return this.addNamedListener(name, eventName, callback, toHead);\n  },\n\n  /**\n   * Helper method to add a set of named listeners using\n   * {addNamedListener}. The callback contains a parameter\n   * with a handle to the `addNamedListener` method.\n   *\n   * @callback callback function(add)\n   *   The callback function is called immediately in order to provide\n   *   the `add` function to the block. This simplifies the addition of\n   *   a large group of named listeners.\n   *   @param add [Function] the {addNamedListener} function to call\n   *     when registering listeners.\n   * @example Adding a set of named listeners\n   *   emitter.addNamedListeners(function(add) {\n   *     add('DATA_CALLBACK', 'data', function() { ... });\n   *     add('OTHER', 'otherEvent', function() { ... });\n   *     add('LAST', 'lastEvent', function() { ... });\n   *   });\n   *\n   *   // these properties are now set:\n   *   emitter.DATA_CALLBACK;\n   *   emitter.OTHER;\n   *   emitter.LAST;\n   */\n  addNamedListeners: function addNamedListeners(callback) {\n    var self = this;\n    callback(function () {\n      self.addNamedListener.apply(self, arguments);\n    }, function () {\n      self.addNamedAsyncListener.apply(self, arguments);\n    });\n    return this;\n  }\n});\n/**\n * {on} is the prefered method.\n * @api private\n */\n\nAWS.SequentialExecutor.prototype.addListener = AWS.SequentialExecutor.prototype.on;\n/**\n * @api private\n */\n\nmodule.exports = AWS.SequentialExecutor;","/**\n * Takes in a buffer of event messages and splits them into individual messages.\n * @param {Buffer} buffer\n * @api private\n */\nfunction eventMessageChunker(buffer) {\n  /** @type Buffer[] */\n  var messages = [];\n  var offset = 0;\n\n  while (offset < buffer.length) {\n    var totalLength = buffer.readInt32BE(offset); // create new buffer for individual message (shares memory with original)\n\n    var message = buffer.slice(offset, totalLength + offset); // increment offset to it starts at the next message\n\n    offset += totalLength;\n    messages.push(message);\n  }\n\n  return messages;\n}\n/**\n * @api private\n */\n\n\nmodule.exports = {\n  eventMessageChunker: eventMessageChunker\n};","'use strict';\nvar $ = require('../internals/export');\nvar $trimStart = require('../internals/string-trim').start;\nvar forcedStringTrimMethod = require('../internals/string-trim-forced');\n\nvar FORCED = forcedStringTrimMethod('trimStart');\n\nvar trimStart = FORCED ? function trimStart() {\n  return $trimStart(this);\n} : ''.trimStart;\n\n// `String.prototype.{ trimStart, trimLeft }` methods\n// https://tc39.es/ecma262/#sec-string.prototype.trimstart\n// https://tc39.es/ecma262/#String.prototype.trimleft\n$({ target: 'String', proto: true, forced: FORCED }, {\n  trimStart: trimStart,\n  trimLeft: trimStart\n});\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n'use strict';\n\nvar R = typeof Reflect === 'object' ? Reflect : null;\nvar ReflectApply = R && typeof R.apply === 'function' ? R.apply : function ReflectApply(target, receiver, args) {\n  return Function.prototype.apply.call(target, receiver, args);\n};\nvar ReflectOwnKeys;\n\nif (R && typeof R.ownKeys === 'function') {\n  ReflectOwnKeys = R.ownKeys;\n} else if (Object.getOwnPropertySymbols) {\n  ReflectOwnKeys = function ReflectOwnKeys(target) {\n    return Object.getOwnPropertyNames(target).concat(Object.getOwnPropertySymbols(target));\n  };\n} else {\n  ReflectOwnKeys = function ReflectOwnKeys(target) {\n    return Object.getOwnPropertyNames(target);\n  };\n}\n\nfunction ProcessEmitWarning(warning) {\n  if (console && console.warn) console.warn(warning);\n}\n\nvar NumberIsNaN = Number.isNaN || function NumberIsNaN(value) {\n  return value !== value;\n};\n\nfunction EventEmitter() {\n  EventEmitter.init.call(this);\n}\n\nmodule.exports = EventEmitter;\nmodule.exports.once = once; // Backwards-compat with node 0.10.x\n\nEventEmitter.EventEmitter = EventEmitter;\nEventEmitter.prototype._events = undefined;\nEventEmitter.prototype._eventsCount = 0;\nEventEmitter.prototype._maxListeners = undefined; // By default EventEmitters will print a warning if more than 10 listeners are\n// added to it. This is a useful default which helps finding memory leaks.\n\nvar defaultMaxListeners = 10;\n\nfunction checkListener(listener) {\n  if (typeof listener !== 'function') {\n    throw new TypeError('The \"listener\" argument must be of type Function. Received type ' + typeof listener);\n  }\n}\n\nObject.defineProperty(EventEmitter, 'defaultMaxListeners', {\n  enumerable: true,\n  get: function get() {\n    return defaultMaxListeners;\n  },\n  set: function set(arg) {\n    if (typeof arg !== 'number' || arg < 0 || NumberIsNaN(arg)) {\n      throw new RangeError('The value of \"defaultMaxListeners\" is out of range. It must be a non-negative number. Received ' + arg + '.');\n    }\n\n    defaultMaxListeners = arg;\n  }\n});\n\nEventEmitter.init = function () {\n  if (this._events === undefined || this._events === Object.getPrototypeOf(this)._events) {\n    this._events = Object.create(null);\n    this._eventsCount = 0;\n  }\n\n  this._maxListeners = this._maxListeners || undefined;\n}; // Obviously not all Emitters should be limited to 10. This function allows\n// that to be increased. Set to zero for unlimited.\n\n\nEventEmitter.prototype.setMaxListeners = function setMaxListeners(n) {\n  if (typeof n !== 'number' || n < 0 || NumberIsNaN(n)) {\n    throw new RangeError('The value of \"n\" is out of range. It must be a non-negative number. Received ' + n + '.');\n  }\n\n  this._maxListeners = n;\n  return this;\n};\n\nfunction _getMaxListeners(that) {\n  if (that._maxListeners === undefined) return EventEmitter.defaultMaxListeners;\n  return that._maxListeners;\n}\n\nEventEmitter.prototype.getMaxListeners = function getMaxListeners() {\n  return _getMaxListeners(this);\n};\n\nEventEmitter.prototype.emit = function emit(type) {\n  var args = [];\n\n  for (var i = 1; i < arguments.length; i++) {\n    args.push(arguments[i]);\n  }\n\n  var doError = type === 'error';\n  var events = this._events;\n  if (events !== undefined) doError = doError && events.error === undefined;else if (!doError) return false; // If there is no 'error' event listener then throw.\n\n  if (doError) {\n    var er;\n    if (args.length > 0) er = args[0];\n\n    if (er instanceof Error) {\n      // Note: The comments on the `throw` lines are intentional, they show\n      // up in Node's output if this results in an unhandled exception.\n      throw er; // Unhandled 'error' event\n    } // At least give some kind of context to the user\n\n\n    var err = new Error('Unhandled error.' + (er ? ' (' + er.message + ')' : ''));\n    err.context = er;\n    throw err; // Unhandled 'error' event\n  }\n\n  var handler = events[type];\n  if (handler === undefined) return false;\n\n  if (typeof handler === 'function') {\n    ReflectApply(handler, this, args);\n  } else {\n    var len = handler.length;\n    var listeners = arrayClone(handler, len);\n\n    for (var i = 0; i < len; ++i) {\n      ReflectApply(listeners[i], this, args);\n    }\n  }\n\n  return true;\n};\n\nfunction _addListener(target, type, listener, prepend) {\n  var m;\n  var events;\n  var existing;\n  checkListener(listener);\n  events = target._events;\n\n  if (events === undefined) {\n    events = target._events = Object.create(null);\n    target._eventsCount = 0;\n  } else {\n    // To avoid recursion in the case that type === \"newListener\"! Before\n    // adding it to the listeners, first emit \"newListener\".\n    if (events.newListener !== undefined) {\n      target.emit('newListener', type, listener.listener ? listener.listener : listener); // Re-assign `events` because a newListener handler could have caused the\n      // this._events to be assigned to a new object\n\n      events = target._events;\n    }\n\n    existing = events[type];\n  }\n\n  if (existing === undefined) {\n    // Optimize the case of one listener. Don't need the extra array object.\n    existing = events[type] = listener;\n    ++target._eventsCount;\n  } else {\n    if (typeof existing === 'function') {\n      // Adding the second element, need to change to array.\n      existing = events[type] = prepend ? [listener, existing] : [existing, listener]; // If we've already got an array, just append.\n    } else if (prepend) {\n      existing.unshift(listener);\n    } else {\n      existing.push(listener);\n    } // Check for listener leak\n\n\n    m = _getMaxListeners(target);\n\n    if (m > 0 && existing.length > m && !existing.warned) {\n      existing.warned = true; // No error code for this since it is a Warning\n      // eslint-disable-next-line no-restricted-syntax\n\n      var w = new Error('Possible EventEmitter memory leak detected. ' + existing.length + ' ' + String(type) + ' listeners ' + 'added. Use emitter.setMaxListeners() to ' + 'increase limit');\n      w.name = 'MaxListenersExceededWarning';\n      w.emitter = target;\n      w.type = type;\n      w.count = existing.length;\n      ProcessEmitWarning(w);\n    }\n  }\n\n  return target;\n}\n\nEventEmitter.prototype.addListener = function addListener(type, listener) {\n  return _addListener(this, type, listener, false);\n};\n\nEventEmitter.prototype.on = EventEmitter.prototype.addListener;\n\nEventEmitter.prototype.prependListener = function prependListener(type, listener) {\n  return _addListener(this, type, listener, true);\n};\n\nfunction onceWrapper() {\n  if (!this.fired) {\n    this.target.removeListener(this.type, this.wrapFn);\n    this.fired = true;\n    if (arguments.length === 0) return this.listener.call(this.target);\n    return this.listener.apply(this.target, arguments);\n  }\n}\n\nfunction _onceWrap(target, type, listener) {\n  var state = {\n    fired: false,\n    wrapFn: undefined,\n    target: target,\n    type: type,\n    listener: listener\n  };\n  var wrapped = onceWrapper.bind(state);\n  wrapped.listener = listener;\n  state.wrapFn = wrapped;\n  return wrapped;\n}\n\nEventEmitter.prototype.once = function once(type, listener) {\n  checkListener(listener);\n  this.on(type, _onceWrap(this, type, listener));\n  return this;\n};\n\nEventEmitter.prototype.prependOnceListener = function prependOnceListener(type, listener) {\n  checkListener(listener);\n  this.prependListener(type, _onceWrap(this, type, listener));\n  return this;\n}; // Emits a 'removeListener' event if and only if the listener was removed.\n\n\nEventEmitter.prototype.removeListener = function removeListener(type, listener) {\n  var list, events, position, i, originalListener;\n  checkListener(listener);\n  events = this._events;\n  if (events === undefined) return this;\n  list = events[type];\n  if (list === undefined) return this;\n\n  if (list === listener || list.listener === listener) {\n    if (--this._eventsCount === 0) this._events = Object.create(null);else {\n      delete events[type];\n      if (events.removeListener) this.emit('removeListener', type, list.listener || listener);\n    }\n  } else if (typeof list !== 'function') {\n    position = -1;\n\n    for (i = list.length - 1; i >= 0; i--) {\n      if (list[i] === listener || list[i].listener === listener) {\n        originalListener = list[i].listener;\n        position = i;\n        break;\n      }\n    }\n\n    if (position < 0) return this;\n    if (position === 0) list.shift();else {\n      spliceOne(list, position);\n    }\n    if (list.length === 1) events[type] = list[0];\n    if (events.removeListener !== undefined) this.emit('removeListener', type, originalListener || listener);\n  }\n\n  return this;\n};\n\nEventEmitter.prototype.off = EventEmitter.prototype.removeListener;\n\nEventEmitter.prototype.removeAllListeners = function removeAllListeners(type) {\n  var listeners, events, i;\n  events = this._events;\n  if (events === undefined) return this; // not listening for removeListener, no need to emit\n\n  if (events.removeListener === undefined) {\n    if (arguments.length === 0) {\n      this._events = Object.create(null);\n      this._eventsCount = 0;\n    } else if (events[type] !== undefined) {\n      if (--this._eventsCount === 0) this._events = Object.create(null);else delete events[type];\n    }\n\n    return this;\n  } // emit removeListener for all listeners on all events\n\n\n  if (arguments.length === 0) {\n    var keys = Object.keys(events);\n    var key;\n\n    for (i = 0; i < keys.length; ++i) {\n      key = keys[i];\n      if (key === 'removeListener') continue;\n      this.removeAllListeners(key);\n    }\n\n    this.removeAllListeners('removeListener');\n    this._events = Object.create(null);\n    this._eventsCount = 0;\n    return this;\n  }\n\n  listeners = events[type];\n\n  if (typeof listeners === 'function') {\n    this.removeListener(type, listeners);\n  } else if (listeners !== undefined) {\n    // LIFO order\n    for (i = listeners.length - 1; i >= 0; i--) {\n      this.removeListener(type, listeners[i]);\n    }\n  }\n\n  return this;\n};\n\nfunction _listeners(target, type, unwrap) {\n  var events = target._events;\n  if (events === undefined) return [];\n  var evlistener = events[type];\n  if (evlistener === undefined) return [];\n  if (typeof evlistener === 'function') return unwrap ? [evlistener.listener || evlistener] : [evlistener];\n  return unwrap ? unwrapListeners(evlistener) : arrayClone(evlistener, evlistener.length);\n}\n\nEventEmitter.prototype.listeners = function listeners(type) {\n  return _listeners(this, type, true);\n};\n\nEventEmitter.prototype.rawListeners = function rawListeners(type) {\n  return _listeners(this, type, false);\n};\n\nEventEmitter.listenerCount = function (emitter, type) {\n  if (typeof emitter.listenerCount === 'function') {\n    return emitter.listenerCount(type);\n  } else {\n    return listenerCount.call(emitter, type);\n  }\n};\n\nEventEmitter.prototype.listenerCount = listenerCount;\n\nfunction listenerCount(type) {\n  var events = this._events;\n\n  if (events !== undefined) {\n    var evlistener = events[type];\n\n    if (typeof evlistener === 'function') {\n      return 1;\n    } else if (evlistener !== undefined) {\n      return evlistener.length;\n    }\n  }\n\n  return 0;\n}\n\nEventEmitter.prototype.eventNames = function eventNames() {\n  return this._eventsCount > 0 ? ReflectOwnKeys(this._events) : [];\n};\n\nfunction arrayClone(arr, n) {\n  var copy = new Array(n);\n\n  for (var i = 0; i < n; ++i) {\n    copy[i] = arr[i];\n  }\n\n  return copy;\n}\n\nfunction spliceOne(list, index) {\n  for (; index + 1 < list.length; index++) {\n    list[index] = list[index + 1];\n  }\n\n  list.pop();\n}\n\nfunction unwrapListeners(arr) {\n  var ret = new Array(arr.length);\n\n  for (var i = 0; i < ret.length; ++i) {\n    ret[i] = arr[i].listener || arr[i];\n  }\n\n  return ret;\n}\n\nfunction once(emitter, name) {\n  return new Promise(function (resolve, reject) {\n    function eventListener() {\n      if (errorListener !== undefined) {\n        emitter.removeListener('error', errorListener);\n      }\n\n      resolve([].slice.call(arguments));\n    }\n\n    ;\n    var errorListener; // Adding an error listener is not optional because\n    // if an error is thrown on an event emitter we cannot\n    // guarantee that the actual event we are waiting will\n    // be fired. The result could be a silent way to create\n    // memory or file descriptor leaks, which is something\n    // we should avoid.\n\n    if (name !== 'error') {\n      errorListener = function errorListener(err) {\n        emitter.removeListener(name, eventListener);\n        reject(err);\n      };\n\n      emitter.once('error', errorListener);\n    }\n\n    emitter.once(name, eventListener);\n  });\n}","/**\n * The main AWS namespace\n */\nvar AWS = {\n  util: require('./util')\n};\n/**\n * @api private\n * @!macro [new] nobrowser\n *   @note This feature is not supported in the browser environment of the SDK.\n */\n\nvar _hidden = {};\n\n_hidden.toString(); // hack to parse macro\n\n/**\n * @api private\n */\n\n\nmodule.exports = AWS;\nAWS.util.update(AWS, {\n  /**\n   * @constant\n   */\n  VERSION: '2.518.0',\n\n  /**\n   * @api private\n   */\n  Signers: {},\n\n  /**\n   * @api private\n   */\n  Protocol: {\n    Json: require('./protocol/json'),\n    Query: require('./protocol/query'),\n    Rest: require('./protocol/rest'),\n    RestJson: require('./protocol/rest_json'),\n    RestXml: require('./protocol/rest_xml')\n  },\n\n  /**\n   * @api private\n   */\n  XML: {\n    Builder: require('./xml/builder'),\n    Parser: null // conditionally set based on environment\n\n  },\n\n  /**\n   * @api private\n   */\n  JSON: {\n    Builder: require('./json/builder'),\n    Parser: require('./json/parser')\n  },\n\n  /**\n   * @api private\n   */\n  Model: {\n    Api: require('./model/api'),\n    Operation: require('./model/operation'),\n    Shape: require('./model/shape'),\n    Paginator: require('./model/paginator'),\n    ResourceWaiter: require('./model/resource_waiter')\n  },\n\n  /**\n   * @api private\n   */\n  apiLoader: require('./api_loader'),\n\n  /**\n   * @api private\n   */\n  EndpointCache: require('../vendor/endpoint-cache').EndpointCache\n});\n\nrequire('./sequential_executor');\n\nrequire('./service');\n\nrequire('./config');\n\nrequire('./http');\n\nrequire('./event_listeners');\n\nrequire('./request');\n\nrequire('./response');\n\nrequire('./resource_waiter');\n\nrequire('./signers/request_signer');\n\nrequire('./param_validator');\n/**\n * @readonly\n * @return [AWS.SequentialExecutor] a collection of global event listeners that\n *   are attached to every sent request.\n * @see AWS.Request AWS.Request for a list of events to listen for\n * @example Logging the time taken to send a request\n *   AWS.events.on('send', function startSend(resp) {\n *     resp.startTime = new Date().getTime();\n *   }).on('complete', function calculateTime(resp) {\n *     var time = (new Date().getTime() - resp.startTime) / 1000;\n *     console.log('Request took ' + time + ' seconds');\n *   });\n *\n *   new AWS.S3().listBuckets(); // prints 'Request took 0.285 seconds'\n */\n\n\nAWS.events = new AWS.SequentialExecutor(); //create endpoint cache lazily\n\nAWS.util.memoizedProperty(AWS, 'endpointCache', function () {\n  return new AWS.EndpointCache(AWS.config.endpointCacheSize);\n}, true);","require('../lib/node_loader');\n\nvar AWS = require('../lib/core');\n\nvar Service = AWS.Service;\nvar apiLoader = AWS.apiLoader;\napiLoader.services['sts'] = {};\nAWS.STS = Service.defineService('sts', ['2011-06-15']);\n\nrequire('../lib/services/sts');\n\nObject.defineProperty(apiLoader.services['sts'], '2011-06-15', {\n  get: function get() {\n    var model = require('../apis/sts-2011-06-15.min.json');\n\n    model.paginators = require('../apis/sts-2011-06-15.paginators.json').pagination;\n    return model;\n  },\n  enumerable: true,\n  configurable: true\n});\nmodule.exports = AWS.STS;","var AWS = require('./core');\n/**\n * Represents your AWS security credentials, specifically the\n * {accessKeyId}, {secretAccessKey}, and optional {sessionToken}.\n * Creating a `Credentials` object allows you to pass around your\n * security information to configuration and service objects.\n *\n * Note that this class typically does not need to be constructed manually,\n * as the {AWS.Config} and {AWS.Service} classes both accept simple\n * options hashes with the three keys. These structures will be converted\n * into Credentials objects automatically.\n *\n * ## Expiring and Refreshing Credentials\n *\n * Occasionally credentials can expire in the middle of a long-running\n * application. In this case, the SDK will automatically attempt to\n * refresh the credentials from the storage location if the Credentials\n * class implements the {refresh} method.\n *\n * If you are implementing a credential storage location, you\n * will want to create a subclass of the `Credentials` class and\n * override the {refresh} method. This method allows credentials to be\n * retrieved from the backing store, be it a file system, database, or\n * some network storage. The method should reset the credential attributes\n * on the object.\n *\n * @!attribute expired\n *   @return [Boolean] whether the credentials have been expired and\n *     require a refresh. Used in conjunction with {expireTime}.\n * @!attribute expireTime\n *   @return [Date] a time when credentials should be considered expired. Used\n *     in conjunction with {expired}.\n * @!attribute accessKeyId\n *   @return [String] the AWS access key ID\n * @!attribute secretAccessKey\n *   @return [String] the AWS secret access key\n * @!attribute sessionToken\n *   @return [String] an optional AWS session token\n */\n\n\nAWS.Credentials = AWS.util.inherit({\n  /**\n   * A credentials object can be created using positional arguments or an options\n   * hash.\n   *\n   * @overload AWS.Credentials(accessKeyId, secretAccessKey, sessionToken=null)\n   *   Creates a Credentials object with a given set of credential information\n   *   as positional arguments.\n   *   @param accessKeyId [String] the AWS access key ID\n   *   @param secretAccessKey [String] the AWS secret access key\n   *   @param sessionToken [String] the optional AWS session token\n   *   @example Create a credentials object with AWS credentials\n   *     var creds = new AWS.Credentials('akid', 'secret', 'session');\n   * @overload AWS.Credentials(options)\n   *   Creates a Credentials object with a given set of credential information\n   *   as an options hash.\n   *   @option options accessKeyId [String] the AWS access key ID\n   *   @option options secretAccessKey [String] the AWS secret access key\n   *   @option options sessionToken [String] the optional AWS session token\n   *   @example Create a credentials object with AWS credentials\n   *     var creds = new AWS.Credentials({\n   *       accessKeyId: 'akid', secretAccessKey: 'secret', sessionToken: 'session'\n   *     });\n   */\n  constructor: function Credentials() {\n    // hide secretAccessKey from being displayed with util.inspect\n    AWS.util.hideProperties(this, ['secretAccessKey']);\n    this.expired = false;\n    this.expireTime = null;\n    this.refreshCallbacks = [];\n\n    if (arguments.length === 1 && typeof arguments[0] === 'object') {\n      var creds = arguments[0].credentials || arguments[0];\n      this.accessKeyId = creds.accessKeyId;\n      this.secretAccessKey = creds.secretAccessKey;\n      this.sessionToken = creds.sessionToken;\n    } else {\n      this.accessKeyId = arguments[0];\n      this.secretAccessKey = arguments[1];\n      this.sessionToken = arguments[2];\n    }\n  },\n\n  /**\n   * @return [Integer] the number of seconds before {expireTime} during which\n   *   the credentials will be considered expired.\n   */\n  expiryWindow: 15,\n\n  /**\n   * @return [Boolean] whether the credentials object should call {refresh}\n   * @note Subclasses should override this method to provide custom refresh\n   *   logic.\n   */\n  needsRefresh: function needsRefresh() {\n    var currentTime = AWS.util.date.getDate().getTime();\n    var adjustedTime = new Date(currentTime + this.expiryWindow * 1000);\n\n    if (this.expireTime && adjustedTime > this.expireTime) {\n      return true;\n    } else {\n      return this.expired || !this.accessKeyId || !this.secretAccessKey;\n    }\n  },\n\n  /**\n   * Gets the existing credentials, refreshing them if they are not yet loaded\n   * or have expired. Users should call this method before using {refresh},\n   * as this will not attempt to reload credentials when they are already\n   * loaded into the object.\n   *\n   * @callback callback function(err)\n   *   When this callback is called with no error, it means either credentials\n   *   do not need to be refreshed or refreshed credentials information has\n   *   been loaded into the object (as the `accessKeyId`, `secretAccessKey`,\n   *   and `sessionToken` properties).\n   *   @param err [Error] if an error occurred, this value will be filled\n   */\n  get: function get(callback) {\n    var self = this;\n\n    if (this.needsRefresh()) {\n      this.refresh(function (err) {\n        if (!err) self.expired = false; // reset expired flag\n\n        if (callback) callback(err);\n      });\n    } else if (callback) {\n      callback();\n    }\n  },\n\n  /**\n   * @!method  getPromise()\n   *   Returns a 'thenable' promise.\n   *   Gets the existing credentials, refreshing them if they are not yet loaded\n   *   or have expired. Users should call this method before using {refresh},\n   *   as this will not attempt to reload credentials when they are already\n   *   loaded into the object.\n   *\n   *   Two callbacks can be provided to the `then` method on the returned promise.\n   *   The first callback will be called if the promise is fulfilled, and the second\n   *   callback will be called if the promise is rejected.\n   *   @callback fulfilledCallback function()\n   *     Called if the promise is fulfilled. When this callback is called, it\n   *     means either credentials do not need to be refreshed or refreshed\n   *     credentials information has been loaded into the object (as the\n   *     `accessKeyId`, `secretAccessKey`, and `sessionToken` properties).\n   *   @callback rejectedCallback function(err)\n   *     Called if the promise is rejected.\n   *     @param err [Error] if an error occurred, this value will be filled\n   *   @return [Promise] A promise that represents the state of the `get` call.\n   *   @example Calling the `getPromise` method.\n   *     var promise = credProvider.getPromise();\n   *     promise.then(function() { ... }, function(err) { ... });\n   */\n\n  /**\n   * @!method  refreshPromise()\n   *   Returns a 'thenable' promise.\n   *   Refreshes the credentials. Users should call {get} before attempting\n   *   to forcibly refresh credentials.\n   *\n   *   Two callbacks can be provided to the `then` method on the returned promise.\n   *   The first callback will be called if the promise is fulfilled, and the second\n   *   callback will be called if the promise is rejected.\n   *   @callback fulfilledCallback function()\n   *     Called if the promise is fulfilled. When this callback is called, it\n   *     means refreshed credentials information has been loaded into the object\n   *     (as the `accessKeyId`, `secretAccessKey`, and `sessionToken` properties).\n   *   @callback rejectedCallback function(err)\n   *     Called if the promise is rejected.\n   *     @param err [Error] if an error occurred, this value will be filled\n   *   @return [Promise] A promise that represents the state of the `refresh` call.\n   *   @example Calling the `refreshPromise` method.\n   *     var promise = credProvider.refreshPromise();\n   *     promise.then(function() { ... }, function(err) { ... });\n   */\n\n  /**\n   * Refreshes the credentials. Users should call {get} before attempting\n   * to forcibly refresh credentials.\n   *\n   * @callback callback function(err)\n   *   When this callback is called with no error, it means refreshed\n   *   credentials information has been loaded into the object (as the\n   *   `accessKeyId`, `secretAccessKey`, and `sessionToken` properties).\n   *   @param err [Error] if an error occurred, this value will be filled\n   * @note Subclasses should override this class to reset the\n   *   {accessKeyId}, {secretAccessKey} and optional {sessionToken}\n   *   on the credentials object and then call the callback with\n   *   any error information.\n   * @see get\n   */\n  refresh: function refresh(callback) {\n    this.expired = false;\n    callback();\n  },\n\n  /**\n   * @api private\n   * @param callback\n   */\n  coalesceRefresh: function coalesceRefresh(callback, sync) {\n    var self = this;\n\n    if (self.refreshCallbacks.push(callback) === 1) {\n      self.load(function onLoad(err) {\n        AWS.util.arrayEach(self.refreshCallbacks, function (callback) {\n          if (sync) {\n            callback(err);\n          } else {\n            // callback could throw, so defer to ensure all callbacks are notified\n            AWS.util.defer(function () {\n              callback(err);\n            });\n          }\n        });\n        self.refreshCallbacks.length = 0;\n      });\n    }\n  },\n\n  /**\n   * @api private\n   * @param callback\n   */\n  load: function load(callback) {\n    callback();\n  }\n});\n/**\n * @api private\n */\n\nAWS.Credentials.addPromisesToClass = function addPromisesToClass(PromiseDependency) {\n  this.prototype.getPromise = AWS.util.promisifyMethod('get', PromiseDependency);\n  this.prototype.refreshPromise = AWS.util.promisifyMethod('refresh', PromiseDependency);\n};\n/**\n * @api private\n */\n\n\nAWS.Credentials.deletePromisesFromClass = function deletePromisesFromClass() {\n  delete this.prototype.getPromise;\n  delete this.prototype.refreshPromise;\n};\n\nAWS.util.addPromises(AWS.Credentials);","var eventMessageChunker = require('../event-stream/event-message-chunker').eventMessageChunker;\n\nvar parseEvent = require('./parse-event').parseEvent;\n\nfunction createEventStream(body, parser, model) {\n  var eventMessages = eventMessageChunker(body);\n  var events = [];\n\n  for (var i = 0; i < eventMessages.length; i++) {\n    events.push(parseEvent(parser, eventMessages[i], model));\n  }\n\n  return events;\n}\n/**\n * @api private\n */\n\n\nmodule.exports = {\n  createEventStream: createEventStream\n};","var parseMessage = require('./parse-message').parseMessage;\n/**\n *\n * @param {*} parser\n * @param {Buffer} message\n * @param {*} shape\n * @api private\n */\n\n\nfunction parseEvent(parser, message, shape) {\n  var parsedMessage = parseMessage(message); // check if message is an event or error\n\n  var messageType = parsedMessage.headers[':message-type'];\n\n  if (messageType) {\n    if (messageType.value === 'error') {\n      throw parseError(parsedMessage);\n    } else if (messageType.value !== 'event') {\n      // not sure how to parse non-events/non-errors, ignore for now\n      return;\n    }\n  } // determine event type\n\n\n  var eventType = parsedMessage.headers[':event-type']; // check that the event type is modeled\n\n  var eventModel = shape.members[eventType.value];\n\n  if (!eventModel) {\n    return;\n  }\n\n  var result = {}; // check if an event payload exists\n\n  var eventPayloadMemberName = eventModel.eventPayloadMemberName;\n\n  if (eventPayloadMemberName) {\n    var payloadShape = eventModel.members[eventPayloadMemberName]; // if the shape is binary, return the byte array\n\n    if (payloadShape.type === 'binary') {\n      result[eventPayloadMemberName] = parsedMessage.body;\n    } else {\n      result[eventPayloadMemberName] = parser.parse(parsedMessage.body.toString(), payloadShape);\n    }\n  } // read event headers\n\n\n  var eventHeaderNames = eventModel.eventHeaderMemberNames;\n\n  for (var i = 0; i < eventHeaderNames.length; i++) {\n    var name = eventHeaderNames[i];\n\n    if (parsedMessage.headers[name]) {\n      // parse the header!\n      result[name] = eventModel.members[name].toType(parsedMessage.headers[name].value);\n    }\n  }\n\n  var output = {};\n  output[eventType.value] = result;\n  return output;\n}\n\nfunction parseError(message) {\n  var errorCode = message.headers[':error-code'];\n  var errorMessage = message.headers[':error-message'];\n  var error = new Error(errorMessage.value || errorMessage);\n  error.code = error.name = errorCode.value || errorCode;\n  return error;\n}\n/**\n * @api private\n */\n\n\nmodule.exports = {\n  parseEvent: parseEvent\n};","exports.read = function (buffer, offset, isLE, mLen, nBytes) {\n  var e, m;\n  var eLen = nBytes * 8 - mLen - 1;\n  var eMax = (1 << eLen) - 1;\n  var eBias = eMax >> 1;\n  var nBits = -7;\n  var i = isLE ? nBytes - 1 : 0;\n  var d = isLE ? -1 : 1;\n  var s = buffer[offset + i];\n  i += d;\n  e = s & (1 << -nBits) - 1;\n  s >>= -nBits;\n  nBits += eLen;\n\n  for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}\n\n  m = e & (1 << -nBits) - 1;\n  e >>= -nBits;\n  nBits += mLen;\n\n  for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}\n\n  if (e === 0) {\n    e = 1 - eBias;\n  } else if (e === eMax) {\n    return m ? NaN : (s ? -1 : 1) * Infinity;\n  } else {\n    m = m + Math.pow(2, mLen);\n    e = e - eBias;\n  }\n\n  return (s ? -1 : 1) * m * Math.pow(2, e - mLen);\n};\n\nexports.write = function (buffer, value, offset, isLE, mLen, nBytes) {\n  var e, m, c;\n  var eLen = nBytes * 8 - mLen - 1;\n  var eMax = (1 << eLen) - 1;\n  var eBias = eMax >> 1;\n  var rt = mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0;\n  var i = isLE ? 0 : nBytes - 1;\n  var d = isLE ? 1 : -1;\n  var s = value < 0 || value === 0 && 1 / value < 0 ? 1 : 0;\n  value = Math.abs(value);\n\n  if (isNaN(value) || value === Infinity) {\n    m = isNaN(value) ? 1 : 0;\n    e = eMax;\n  } else {\n    e = Math.floor(Math.log(value) / Math.LN2);\n\n    if (value * (c = Math.pow(2, -e)) < 1) {\n      e--;\n      c *= 2;\n    }\n\n    if (e + eBias >= 1) {\n      value += rt / c;\n    } else {\n      value += rt * Math.pow(2, 1 - eBias);\n    }\n\n    if (value * c >= 2) {\n      e++;\n      c /= 2;\n    }\n\n    if (e + eBias >= eMax) {\n      m = 0;\n      e = eMax;\n    } else if (e + eBias >= 1) {\n      m = (value * c - 1) * Math.pow(2, mLen);\n      e = e + eBias;\n    } else {\n      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen);\n      e = 0;\n    }\n  }\n\n  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}\n\n  e = e << mLen | m;\n  eLen += mLen;\n\n  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}\n\n  buffer[offset + i - d] |= s * 128;\n};","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n'use strict'; // If obj.hasOwnProperty has been overridden, then calling\n// obj.hasOwnProperty(prop) will break.\n// See: https://github.com/joyent/node/issues/1707\n\nfunction hasOwnProperty(obj, prop) {\n  return Object.prototype.hasOwnProperty.call(obj, prop);\n}\n\nmodule.exports = function (qs, sep, eq, options) {\n  sep = sep || '&';\n  eq = eq || '=';\n  var obj = {};\n\n  if (typeof qs !== 'string' || qs.length === 0) {\n    return obj;\n  }\n\n  var regexp = /\\+/g;\n  qs = qs.split(sep);\n  var maxKeys = 1000;\n\n  if (options && typeof options.maxKeys === 'number') {\n    maxKeys = options.maxKeys;\n  }\n\n  var len = qs.length; // maxKeys <= 0 means that we should not limit keys count\n\n  if (maxKeys > 0 && len > maxKeys) {\n    len = maxKeys;\n  }\n\n  for (var i = 0; i < len; ++i) {\n    var x = qs[i].replace(regexp, '%20'),\n        idx = x.indexOf(eq),\n        kstr,\n        vstr,\n        k,\n        v;\n\n    if (idx >= 0) {\n      kstr = x.substr(0, idx);\n      vstr = x.substr(idx + 1);\n    } else {\n      kstr = x;\n      vstr = '';\n    }\n\n    k = decodeURIComponent(kstr);\n    v = decodeURIComponent(vstr);\n\n    if (!hasOwnProperty(obj, k)) {\n      obj[k] = v;\n    } else if (isArray(obj[k])) {\n      obj[k].push(v);\n    } else {\n      obj[k] = [obj[k], v];\n    }\n  }\n\n  return obj;\n};\n\nvar isArray = Array.isArray || function (xs) {\n  return Object.prototype.toString.call(xs) === '[object Array]';\n};","var rng = require('./lib/rng');\n\nvar bytesToUuid = require('./lib/bytesToUuid'); // **`v1()` - Generate time-based UUID**\n//\n// Inspired by https://github.com/LiosK/UUID.js\n// and http://docs.python.org/library/uuid.html\n\n\nvar _nodeId;\n\nvar _clockseq; // Previous uuid creation time\n\n\nvar _lastMSecs = 0;\nvar _lastNSecs = 0; // See https://github.com/broofa/node-uuid for API details\n\nfunction v1(options, buf, offset) {\n  var i = buf && offset || 0;\n  var b = buf || [];\n  options = options || {};\n  var node = options.node || _nodeId;\n  var clockseq = options.clockseq !== undefined ? options.clockseq : _clockseq; // node and clockseq need to be initialized to random values if they're not\n  // specified.  We do this lazily to minimize issues related to insufficient\n  // system entropy.  See #189\n\n  if (node == null || clockseq == null) {\n    var seedBytes = rng();\n\n    if (node == null) {\n      // Per 4.5, create and 48-bit node id, (47 random bits + multicast bit = 1)\n      node = _nodeId = [seedBytes[0] | 0x01, seedBytes[1], seedBytes[2], seedBytes[3], seedBytes[4], seedBytes[5]];\n    }\n\n    if (clockseq == null) {\n      // Per 4.2.2, randomize (14 bit) clockseq\n      clockseq = _clockseq = (seedBytes[6] << 8 | seedBytes[7]) & 0x3fff;\n    }\n  } // UUID timestamps are 100 nano-second units since the Gregorian epoch,\n  // (1582-10-15 00:00).  JSNumbers aren't precise enough for this, so\n  // time is handled internally as 'msecs' (integer milliseconds) and 'nsecs'\n  // (100-nanoseconds offset from msecs) since unix epoch, 1970-01-01 00:00.\n\n\n  var msecs = options.msecs !== undefined ? options.msecs : new Date().getTime(); // Per 4.2.1.2, use count of uuid's generated during the current clock\n  // cycle to simulate higher resolution clock\n\n  var nsecs = options.nsecs !== undefined ? options.nsecs : _lastNSecs + 1; // Time since last uuid creation (in msecs)\n\n  var dt = msecs - _lastMSecs + (nsecs - _lastNSecs) / 10000; // Per 4.2.1.2, Bump clockseq on clock regression\n\n  if (dt < 0 && options.clockseq === undefined) {\n    clockseq = clockseq + 1 & 0x3fff;\n  } // Reset nsecs if clock regresses (new clockseq) or we've moved onto a new\n  // time interval\n\n\n  if ((dt < 0 || msecs > _lastMSecs) && options.nsecs === undefined) {\n    nsecs = 0;\n  } // Per 4.2.1.2 Throw error if too many uuids are requested\n\n\n  if (nsecs >= 10000) {\n    throw new Error('uuid.v1(): Can\\'t create more than 10M uuids/sec');\n  }\n\n  _lastMSecs = msecs;\n  _lastNSecs = nsecs;\n  _clockseq = clockseq; // Per 4.1.4 - Convert from unix epoch to Gregorian epoch\n\n  msecs += 12219292800000; // `time_low`\n\n  var tl = ((msecs & 0xfffffff) * 10000 + nsecs) % 0x100000000;\n  b[i++] = tl >>> 24 & 0xff;\n  b[i++] = tl >>> 16 & 0xff;\n  b[i++] = tl >>> 8 & 0xff;\n  b[i++] = tl & 0xff; // `time_mid`\n\n  var tmh = msecs / 0x100000000 * 10000 & 0xfffffff;\n  b[i++] = tmh >>> 8 & 0xff;\n  b[i++] = tmh & 0xff; // `time_high_and_version`\n\n  b[i++] = tmh >>> 24 & 0xf | 0x10; // include version\n\n  b[i++] = tmh >>> 16 & 0xff; // `clock_seq_hi_and_reserved` (Per 4.2.2 - include variant)\n\n  b[i++] = clockseq >>> 8 | 0x80; // `clock_seq_low`\n\n  b[i++] = clockseq & 0xff; // `node`\n\n  for (var n = 0; n < 6; ++n) {\n    b[i + n] = node[n];\n  }\n\n  return buf ? buf : bytesToUuid(b);\n}\n\nmodule.exports = v1;","var property = require('../util').property;\n\nfunction Paginator(name, paginator) {\n  property(this, 'inputToken', paginator.input_token);\n  property(this, 'limitKey', paginator.limit_key);\n  property(this, 'moreResults', paginator.more_results);\n  property(this, 'outputToken', paginator.output_token);\n  property(this, 'resultKey', paginator.result_key);\n}\n/**\n * @api private\n */\n\n\nmodule.exports = Paginator;",";\n\n(function (root, factory) {\n  if (typeof exports === \"object\") {\n    // CommonJS\n    module.exports = exports = factory(require(\"./core\"));\n  } else if (typeof define === \"function\" && define.amd) {\n    // AMD\n    define([\"./core\"], factory);\n  } else {\n    // Global (browser)\n    factory(root.CryptoJS);\n  }\n})(this, function (CryptoJS) {\n  (function (Math) {\n    // Shortcuts\n    var C = CryptoJS;\n    var C_lib = C.lib;\n    var WordArray = C_lib.WordArray;\n    var Hasher = C_lib.Hasher;\n    var C_algo = C.algo; // Initialization and round constants tables\n\n    var H = [];\n    var K = []; // Compute constants\n\n    (function () {\n      function isPrime(n) {\n        var sqrtN = Math.sqrt(n);\n\n        for (var factor = 2; factor <= sqrtN; factor++) {\n          if (!(n % factor)) {\n            return false;\n          }\n        }\n\n        return true;\n      }\n\n      function getFractionalBits(n) {\n        return (n - (n | 0)) * 0x100000000 | 0;\n      }\n\n      var n = 2;\n      var nPrime = 0;\n\n      while (nPrime < 64) {\n        if (isPrime(n)) {\n          if (nPrime < 8) {\n            H[nPrime] = getFractionalBits(Math.pow(n, 1 / 2));\n          }\n\n          K[nPrime] = getFractionalBits(Math.pow(n, 1 / 3));\n          nPrime++;\n        }\n\n        n++;\n      }\n    })(); // Reusable object\n\n\n    var W = [];\n    /**\n     * SHA-256 hash algorithm.\n     */\n\n    var SHA256 = C_algo.SHA256 = Hasher.extend({\n      _doReset: function _doReset() {\n        this._hash = new WordArray.init(H.slice(0));\n      },\n      _doProcessBlock: function _doProcessBlock(M, offset) {\n        // Shortcut\n        var H = this._hash.words; // Working variables\n\n        var a = H[0];\n        var b = H[1];\n        var c = H[2];\n        var d = H[3];\n        var e = H[4];\n        var f = H[5];\n        var g = H[6];\n        var h = H[7]; // Computation\n\n        for (var i = 0; i < 64; i++) {\n          if (i < 16) {\n            W[i] = M[offset + i] | 0;\n          } else {\n            var gamma0x = W[i - 15];\n            var gamma0 = (gamma0x << 25 | gamma0x >>> 7) ^ (gamma0x << 14 | gamma0x >>> 18) ^ gamma0x >>> 3;\n            var gamma1x = W[i - 2];\n            var gamma1 = (gamma1x << 15 | gamma1x >>> 17) ^ (gamma1x << 13 | gamma1x >>> 19) ^ gamma1x >>> 10;\n            W[i] = gamma0 + W[i - 7] + gamma1 + W[i - 16];\n          }\n\n          var ch = e & f ^ ~e & g;\n          var maj = a & b ^ a & c ^ b & c;\n          var sigma0 = (a << 30 | a >>> 2) ^ (a << 19 | a >>> 13) ^ (a << 10 | a >>> 22);\n          var sigma1 = (e << 26 | e >>> 6) ^ (e << 21 | e >>> 11) ^ (e << 7 | e >>> 25);\n          var t1 = h + sigma1 + ch + K[i] + W[i];\n          var t2 = sigma0 + maj;\n          h = g;\n          g = f;\n          f = e;\n          e = d + t1 | 0;\n          d = c;\n          c = b;\n          b = a;\n          a = t1 + t2 | 0;\n        } // Intermediate hash value\n\n\n        H[0] = H[0] + a | 0;\n        H[1] = H[1] + b | 0;\n        H[2] = H[2] + c | 0;\n        H[3] = H[3] + d | 0;\n        H[4] = H[4] + e | 0;\n        H[5] = H[5] + f | 0;\n        H[6] = H[6] + g | 0;\n        H[7] = H[7] + h | 0;\n      },\n      _doFinalize: function _doFinalize() {\n        // Shortcuts\n        var data = this._data;\n        var dataWords = data.words;\n        var nBitsTotal = this._nDataBytes * 8;\n        var nBitsLeft = data.sigBytes * 8; // Add padding\n\n        dataWords[nBitsLeft >>> 5] |= 0x80 << 24 - nBitsLeft % 32;\n        dataWords[(nBitsLeft + 64 >>> 9 << 4) + 14] = Math.floor(nBitsTotal / 0x100000000);\n        dataWords[(nBitsLeft + 64 >>> 9 << 4) + 15] = nBitsTotal;\n        data.sigBytes = dataWords.length * 4; // Hash final blocks\n\n        this._process(); // Return final computed hash\n\n\n        return this._hash;\n      },\n      clone: function clone() {\n        var clone = Hasher.clone.call(this);\n        clone._hash = this._hash.clone();\n        return clone;\n      }\n    });\n    /**\n     * Shortcut function to the hasher's object interface.\n     *\n     * @param {WordArray|string} message The message to hash.\n     *\n     * @return {WordArray} The hash.\n     *\n     * @static\n     *\n     * @example\n     *\n     *     var hash = CryptoJS.SHA256('message');\n     *     var hash = CryptoJS.SHA256(wordArray);\n     */\n\n    C.SHA256 = Hasher._createHelper(SHA256);\n    /**\n     * Shortcut function to the HMAC's object interface.\n     *\n     * @param {WordArray|string} message The message to hash.\n     * @param {WordArray|string} key The secret key.\n     *\n     * @return {WordArray} The HMAC.\n     *\n     * @static\n     *\n     * @example\n     *\n     *     var hmac = CryptoJS.HmacSHA256(message, key);\n     */\n\n    C.HmacSHA256 = Hasher._createHmacHelper(SHA256);\n  })(Math);\n\n  return CryptoJS.SHA256;\n});","var AWS = require('./core');\n\nvar Api = require('./model/api');\n\nvar regionConfig = require('./region_config');\n\nvar inherit = AWS.util.inherit;\nvar clientCount = 0;\n/**\n * The service class representing an AWS service.\n *\n * @class_abstract This class is an abstract class.\n *\n * @!attribute apiVersions\n *   @return [Array<String>] the list of API versions supported by this service.\n *   @readonly\n */\n\nAWS.Service = inherit({\n  /**\n   * Create a new service object with a configuration object\n   *\n   * @param config [map] a map of configuration options\n   */\n  constructor: function Service(config) {\n    if (!this.loadServiceClass) {\n      throw AWS.util.error(new Error(), 'Service must be constructed with `new\\' operator');\n    }\n\n    var ServiceClass = this.loadServiceClass(config || {});\n\n    if (ServiceClass) {\n      var originalConfig = AWS.util.copy(config);\n      var svc = new ServiceClass(config);\n      Object.defineProperty(svc, '_originalConfig', {\n        get: function get() {\n          return originalConfig;\n        },\n        enumerable: false,\n        configurable: true\n      });\n      svc._clientId = ++clientCount;\n      return svc;\n    }\n\n    this.initialize(config);\n  },\n\n  /**\n   * @api private\n   */\n  initialize: function initialize(config) {\n    var svcConfig = AWS.config[this.serviceIdentifier];\n    this.config = new AWS.Config(AWS.config);\n    if (svcConfig) this.config.update(svcConfig, true);\n    if (config) this.config.update(config, true);\n    this.validateService();\n    if (!this.config.endpoint) regionConfig(this);\n    this.config.endpoint = this.endpointFromTemplate(this.config.endpoint);\n    this.setEndpoint(this.config.endpoint); //enable attaching listeners to service client\n\n    AWS.SequentialExecutor.call(this);\n    AWS.Service.addDefaultMonitoringListeners(this);\n\n    if ((this.config.clientSideMonitoring || AWS.Service._clientSideMonitoring) && this.publisher) {\n      var publisher = this.publisher;\n      this.addNamedListener('PUBLISH_API_CALL', 'apiCall', function PUBLISH_API_CALL(event) {\n        process.nextTick(function () {\n          publisher.eventHandler(event);\n        });\n      });\n      this.addNamedListener('PUBLISH_API_ATTEMPT', 'apiCallAttempt', function PUBLISH_API_ATTEMPT(event) {\n        process.nextTick(function () {\n          publisher.eventHandler(event);\n        });\n      });\n    }\n  },\n\n  /**\n   * @api private\n   */\n  validateService: function validateService() {},\n\n  /**\n   * @api private\n   */\n  loadServiceClass: function loadServiceClass(serviceConfig) {\n    var config = serviceConfig;\n\n    if (!AWS.util.isEmpty(this.api)) {\n      return null;\n    } else if (config.apiConfig) {\n      return AWS.Service.defineServiceApi(this.constructor, config.apiConfig);\n    } else if (!this.constructor.services) {\n      return null;\n    } else {\n      config = new AWS.Config(AWS.config);\n      config.update(serviceConfig, true);\n      var version = config.apiVersions[this.constructor.serviceIdentifier];\n      version = version || config.apiVersion;\n      return this.getLatestServiceClass(version);\n    }\n  },\n\n  /**\n   * @api private\n   */\n  getLatestServiceClass: function getLatestServiceClass(version) {\n    version = this.getLatestServiceVersion(version);\n\n    if (this.constructor.services[version] === null) {\n      AWS.Service.defineServiceApi(this.constructor, version);\n    }\n\n    return this.constructor.services[version];\n  },\n\n  /**\n   * @api private\n   */\n  getLatestServiceVersion: function getLatestServiceVersion(version) {\n    if (!this.constructor.services || this.constructor.services.length === 0) {\n      throw new Error('No services defined on ' + this.constructor.serviceIdentifier);\n    }\n\n    if (!version) {\n      version = 'latest';\n    } else if (AWS.util.isType(version, Date)) {\n      version = AWS.util.date.iso8601(version).split('T')[0];\n    }\n\n    if (Object.hasOwnProperty(this.constructor.services, version)) {\n      return version;\n    }\n\n    var keys = Object.keys(this.constructor.services).sort();\n    var selectedVersion = null;\n\n    for (var i = keys.length - 1; i >= 0; i--) {\n      // versions that end in \"*\" are not available on disk and can be\n      // skipped, so do not choose these as selectedVersions\n      if (keys[i][keys[i].length - 1] !== '*') {\n        selectedVersion = keys[i];\n      }\n\n      if (keys[i].substr(0, 10) <= version) {\n        return selectedVersion;\n      }\n    }\n\n    throw new Error('Could not find ' + this.constructor.serviceIdentifier + ' API to satisfy version constraint `' + version + '\\'');\n  },\n\n  /**\n   * @api private\n   */\n  api: {},\n\n  /**\n   * @api private\n   */\n  defaultRetryCount: 3,\n\n  /**\n   * @api private\n   */\n  customizeRequests: function customizeRequests(callback) {\n    if (!callback) {\n      this.customRequestHandler = null;\n    } else if (typeof callback === 'function') {\n      this.customRequestHandler = callback;\n    } else {\n      throw new Error('Invalid callback type \\'' + typeof callback + '\\' provided in customizeRequests');\n    }\n  },\n\n  /**\n   * Calls an operation on a service with the given input parameters.\n   *\n   * @param operation [String] the name of the operation to call on the service.\n   * @param params [map] a map of input options for the operation\n   * @callback callback function(err, data)\n   *   If a callback is supplied, it is called when a response is returned\n   *   from the service.\n   *   @param err [Error] the error object returned from the request.\n   *     Set to `null` if the request is successful.\n   *   @param data [Object] the de-serialized data returned from\n   *     the request. Set to `null` if a request error occurs.\n   */\n  makeRequest: function makeRequest(operation, params, callback) {\n    if (typeof params === 'function') {\n      callback = params;\n      params = null;\n    }\n\n    params = params || {};\n\n    if (this.config.params) {\n      // copy only toplevel bound params\n      var rules = this.api.operations[operation];\n\n      if (rules) {\n        params = AWS.util.copy(params);\n        AWS.util.each(this.config.params, function (key, value) {\n          if (rules.input.members[key]) {\n            if (params[key] === undefined || params[key] === null) {\n              params[key] = value;\n            }\n          }\n        });\n      }\n    }\n\n    var request = new AWS.Request(this, operation, params);\n    this.addAllRequestListeners(request);\n    this.attachMonitoringEmitter(request);\n    if (callback) request.send(callback);\n    return request;\n  },\n\n  /**\n   * Calls an operation on a service with the given input parameters, without\n   * any authentication data. This method is useful for \"public\" API operations.\n   *\n   * @param operation [String] the name of the operation to call on the service.\n   * @param params [map] a map of input options for the operation\n   * @callback callback function(err, data)\n   *   If a callback is supplied, it is called when a response is returned\n   *   from the service.\n   *   @param err [Error] the error object returned from the request.\n   *     Set to `null` if the request is successful.\n   *   @param data [Object] the de-serialized data returned from\n   *     the request. Set to `null` if a request error occurs.\n   */\n  makeUnauthenticatedRequest: function makeUnauthenticatedRequest(operation, params, callback) {\n    if (typeof params === 'function') {\n      callback = params;\n      params = {};\n    }\n\n    var request = this.makeRequest(operation, params).toUnauthenticated();\n    return callback ? request.send(callback) : request;\n  },\n\n  /**\n   * Waits for a given state\n   *\n   * @param state [String] the state on the service to wait for\n   * @param params [map] a map of parameters to pass with each request\n   * @option params $waiter [map] a map of configuration options for the waiter\n   * @option params $waiter.delay [Number] The number of seconds to wait between\n   *                                       requests\n   * @option params $waiter.maxAttempts [Number] The maximum number of requests\n   *                                             to send while waiting\n   * @callback callback function(err, data)\n   *   If a callback is supplied, it is called when a response is returned\n   *   from the service.\n   *   @param err [Error] the error object returned from the request.\n   *     Set to `null` if the request is successful.\n   *   @param data [Object] the de-serialized data returned from\n   *     the request. Set to `null` if a request error occurs.\n   */\n  waitFor: function waitFor(state, params, callback) {\n    var waiter = new AWS.ResourceWaiter(this, state);\n    return waiter.wait(params, callback);\n  },\n\n  /**\n   * @api private\n   */\n  addAllRequestListeners: function addAllRequestListeners(request) {\n    var list = [AWS.events, AWS.EventListeners.Core, this.serviceInterface(), AWS.EventListeners.CorePost];\n\n    for (var i = 0; i < list.length; i++) {\n      if (list[i]) request.addListeners(list[i]);\n    } // disable parameter validation\n\n\n    if (!this.config.paramValidation) {\n      request.removeListener('validate', AWS.EventListeners.Core.VALIDATE_PARAMETERS);\n    }\n\n    if (this.config.logger) {\n      // add logging events\n      request.addListeners(AWS.EventListeners.Logger);\n    }\n\n    this.setupRequestListeners(request); // call prototype's customRequestHandler\n\n    if (typeof this.constructor.prototype.customRequestHandler === 'function') {\n      this.constructor.prototype.customRequestHandler(request);\n    } // call instance's customRequestHandler\n\n\n    if (Object.prototype.hasOwnProperty.call(this, 'customRequestHandler') && typeof this.customRequestHandler === 'function') {\n      this.customRequestHandler(request);\n    }\n  },\n\n  /**\n   * Event recording metrics for a whole API call.\n   * @returns {object} a subset of api call metrics\n   * @api private\n   */\n  apiCallEvent: function apiCallEvent(request) {\n    var api = request.service.api.operations[request.operation];\n    var monitoringEvent = {\n      Type: 'ApiCall',\n      Api: api ? api.name : request.operation,\n      Version: 1,\n      Service: request.service.api.serviceId || request.service.api.endpointPrefix,\n      Region: request.httpRequest.region,\n      MaxRetriesExceeded: 0,\n      UserAgent: request.httpRequest.getUserAgent()\n    };\n    var response = request.response;\n\n    if (response.httpResponse.statusCode) {\n      monitoringEvent.FinalHttpStatusCode = response.httpResponse.statusCode;\n    }\n\n    if (response.error) {\n      var error = response.error;\n      var statusCode = response.httpResponse.statusCode;\n\n      if (statusCode > 299) {\n        if (error.code) monitoringEvent.FinalAwsException = error.code;\n        if (error.message) monitoringEvent.FinalAwsExceptionMessage = error.message;\n      } else {\n        if (error.code || error.name) monitoringEvent.FinalSdkException = error.code || error.name;\n        if (error.message) monitoringEvent.FinalSdkExceptionMessage = error.message;\n      }\n    }\n\n    return monitoringEvent;\n  },\n\n  /**\n   * Event recording metrics for an API call attempt.\n   * @returns {object} a subset of api call attempt metrics\n   * @api private\n   */\n  apiAttemptEvent: function apiAttemptEvent(request) {\n    var api = request.service.api.operations[request.operation];\n    var monitoringEvent = {\n      Type: 'ApiCallAttempt',\n      Api: api ? api.name : request.operation,\n      Version: 1,\n      Service: request.service.api.serviceId || request.service.api.endpointPrefix,\n      Fqdn: request.httpRequest.endpoint.hostname,\n      UserAgent: request.httpRequest.getUserAgent()\n    };\n    var response = request.response;\n\n    if (response.httpResponse.statusCode) {\n      monitoringEvent.HttpStatusCode = response.httpResponse.statusCode;\n    }\n\n    if (!request._unAuthenticated && request.service.config.credentials && request.service.config.credentials.accessKeyId) {\n      monitoringEvent.AccessKey = request.service.config.credentials.accessKeyId;\n    }\n\n    if (!response.httpResponse.headers) return monitoringEvent;\n\n    if (request.httpRequest.headers['x-amz-security-token']) {\n      monitoringEvent.SessionToken = request.httpRequest.headers['x-amz-security-token'];\n    }\n\n    if (response.httpResponse.headers['x-amzn-requestid']) {\n      monitoringEvent.XAmznRequestId = response.httpResponse.headers['x-amzn-requestid'];\n    }\n\n    if (response.httpResponse.headers['x-amz-request-id']) {\n      monitoringEvent.XAmzRequestId = response.httpResponse.headers['x-amz-request-id'];\n    }\n\n    if (response.httpResponse.headers['x-amz-id-2']) {\n      monitoringEvent.XAmzId2 = response.httpResponse.headers['x-amz-id-2'];\n    }\n\n    return monitoringEvent;\n  },\n\n  /**\n   * Add metrics of failed request.\n   * @api private\n   */\n  attemptFailEvent: function attemptFailEvent(request) {\n    var monitoringEvent = this.apiAttemptEvent(request);\n    var response = request.response;\n    var error = response.error;\n\n    if (response.httpResponse.statusCode > 299) {\n      if (error.code) monitoringEvent.AwsException = error.code;\n      if (error.message) monitoringEvent.AwsExceptionMessage = error.message;\n    } else {\n      if (error.code || error.name) monitoringEvent.SdkException = error.code || error.name;\n      if (error.message) monitoringEvent.SdkExceptionMessage = error.message;\n    }\n\n    return monitoringEvent;\n  },\n\n  /**\n   * Attach listeners to request object to fetch metrics of each request\n   * and emit data object through \\'ApiCall\\' and \\'ApiCallAttempt\\' events.\n   * @api private\n   */\n  attachMonitoringEmitter: function attachMonitoringEmitter(request) {\n    var attemptTimestamp; //timestamp marking the beginning of a request attempt\n\n    var attemptStartRealTime; //Start time of request attempt. Used to calculating attemptLatency\n\n    var attemptLatency; //latency from request sent out to http response reaching SDK\n\n    var callStartRealTime; //Start time of API call. Used to calculating API call latency\n\n    var attemptCount = 0; //request.retryCount is not reliable here\n\n    var region; //region cache region for each attempt since it can be updated in plase (e.g. s3)\n\n    var callTimestamp; //timestamp when the request is created\n\n    var self = this;\n    var addToHead = true;\n    request.on('validate', function () {\n      callStartRealTime = AWS.util.realClock.now();\n      callTimestamp = Date.now();\n    }, addToHead);\n    request.on('sign', function () {\n      attemptStartRealTime = AWS.util.realClock.now();\n      attemptTimestamp = Date.now();\n      region = request.httpRequest.region;\n      attemptCount++;\n    }, addToHead);\n    request.on('validateResponse', function () {\n      attemptLatency = Math.round(AWS.util.realClock.now() - attemptStartRealTime);\n    });\n    request.addNamedListener('API_CALL_ATTEMPT', 'success', function API_CALL_ATTEMPT() {\n      var apiAttemptEvent = self.apiAttemptEvent(request);\n      apiAttemptEvent.Timestamp = attemptTimestamp;\n      apiAttemptEvent.AttemptLatency = attemptLatency >= 0 ? attemptLatency : 0;\n      apiAttemptEvent.Region = region;\n      self.emit('apiCallAttempt', [apiAttemptEvent]);\n    });\n    request.addNamedListener('API_CALL_ATTEMPT_RETRY', 'retry', function API_CALL_ATTEMPT_RETRY() {\n      var apiAttemptEvent = self.attemptFailEvent(request);\n      apiAttemptEvent.Timestamp = attemptTimestamp; //attemptLatency may not be available if fail before response\n\n      attemptLatency = attemptLatency || Math.round(AWS.util.realClock.now() - attemptStartRealTime);\n      apiAttemptEvent.AttemptLatency = attemptLatency >= 0 ? attemptLatency : 0;\n      apiAttemptEvent.Region = region;\n      self.emit('apiCallAttempt', [apiAttemptEvent]);\n    });\n    request.addNamedListener('API_CALL', 'complete', function API_CALL() {\n      var apiCallEvent = self.apiCallEvent(request);\n      apiCallEvent.AttemptCount = attemptCount;\n      if (apiCallEvent.AttemptCount <= 0) return;\n      apiCallEvent.Timestamp = callTimestamp;\n      var latency = Math.round(AWS.util.realClock.now() - callStartRealTime);\n      apiCallEvent.Latency = latency >= 0 ? latency : 0;\n      var response = request.response;\n\n      if (typeof response.retryCount === 'number' && typeof response.maxRetries === 'number' && response.retryCount >= response.maxRetries) {\n        apiCallEvent.MaxRetriesExceeded = 1;\n      }\n\n      self.emit('apiCall', [apiCallEvent]);\n    });\n  },\n\n  /**\n   * Override this method to setup any custom request listeners for each\n   * new request to the service.\n   *\n   * @method_abstract This is an abstract method.\n   */\n  setupRequestListeners: function setupRequestListeners(request) {},\n\n  /**\n   * Gets the signer class for a given request\n   * @api private\n   */\n  getSignerClass: function getSignerClass(request) {\n    var version; // get operation authtype if present\n\n    var operation = null;\n    var authtype = '';\n\n    if (request) {\n      var operations = request.service.api.operations || {};\n      operation = operations[request.operation] || null;\n      authtype = operation ? operation.authtype : '';\n    }\n\n    if (this.config.signatureVersion) {\n      version = this.config.signatureVersion;\n    } else if (authtype === 'v4' || authtype === 'v4-unsigned-body') {\n      version = 'v4';\n    } else {\n      version = this.api.signatureVersion;\n    }\n\n    return AWS.Signers.RequestSigner.getVersion(version);\n  },\n\n  /**\n   * @api private\n   */\n  serviceInterface: function serviceInterface() {\n    switch (this.api.protocol) {\n      case 'ec2':\n        return AWS.EventListeners.Query;\n\n      case 'query':\n        return AWS.EventListeners.Query;\n\n      case 'json':\n        return AWS.EventListeners.Json;\n\n      case 'rest-json':\n        return AWS.EventListeners.RestJson;\n\n      case 'rest-xml':\n        return AWS.EventListeners.RestXml;\n    }\n\n    if (this.api.protocol) {\n      throw new Error('Invalid service `protocol\\' ' + this.api.protocol + ' in API config');\n    }\n  },\n\n  /**\n   * @api private\n   */\n  successfulResponse: function successfulResponse(resp) {\n    return resp.httpResponse.statusCode < 300;\n  },\n\n  /**\n   * How many times a failed request should be retried before giving up.\n   * the defaultRetryCount can be overriden by service classes.\n   *\n   * @api private\n   */\n  numRetries: function numRetries() {\n    if (this.config.maxRetries !== undefined) {\n      return this.config.maxRetries;\n    } else {\n      return this.defaultRetryCount;\n    }\n  },\n\n  /**\n   * @api private\n   */\n  retryDelays: function retryDelays(retryCount) {\n    return AWS.util.calculateRetryDelay(retryCount, this.config.retryDelayOptions);\n  },\n\n  /**\n   * @api private\n   */\n  retryableError: function retryableError(error) {\n    if (this.timeoutError(error)) return true;\n    if (this.networkingError(error)) return true;\n    if (this.expiredCredentialsError(error)) return true;\n    if (this.throttledError(error)) return true;\n    if (error.statusCode >= 500) return true;\n    return false;\n  },\n\n  /**\n   * @api private\n   */\n  networkingError: function networkingError(error) {\n    return error.code === 'NetworkingError';\n  },\n\n  /**\n   * @api private\n   */\n  timeoutError: function timeoutError(error) {\n    return error.code === 'TimeoutError';\n  },\n\n  /**\n   * @api private\n   */\n  expiredCredentialsError: function expiredCredentialsError(error) {\n    // TODO : this only handles *one* of the expired credential codes\n    return error.code === 'ExpiredTokenException';\n  },\n\n  /**\n   * @api private\n   */\n  clockSkewError: function clockSkewError(error) {\n    switch (error.code) {\n      case 'RequestTimeTooSkewed':\n      case 'RequestExpired':\n      case 'InvalidSignatureException':\n      case 'SignatureDoesNotMatch':\n      case 'AuthFailure':\n      case 'RequestInTheFuture':\n        return true;\n\n      default:\n        return false;\n    }\n  },\n\n  /**\n   * @api private\n   */\n  getSkewCorrectedDate: function getSkewCorrectedDate() {\n    return new Date(Date.now() + this.config.systemClockOffset);\n  },\n\n  /**\n   * @api private\n   */\n  applyClockOffset: function applyClockOffset(newServerTime) {\n    if (newServerTime) {\n      this.config.systemClockOffset = newServerTime - Date.now();\n    }\n  },\n\n  /**\n   * @api private\n   */\n  isClockSkewed: function isClockSkewed(newServerTime) {\n    if (newServerTime) {\n      return Math.abs(this.getSkewCorrectedDate().getTime() - newServerTime) >= 30000;\n    }\n  },\n\n  /**\n   * @api private\n   */\n  throttledError: function throttledError(error) {\n    // this logic varies between services\n    switch (error.code) {\n      case 'ProvisionedThroughputExceededException':\n      case 'Throttling':\n      case 'ThrottlingException':\n      case 'RequestLimitExceeded':\n      case 'RequestThrottled':\n      case 'RequestThrottledException':\n      case 'TooManyRequestsException':\n      case 'TransactionInProgressException':\n        //dynamodb\n        return true;\n\n      default:\n        return false;\n    }\n  },\n\n  /**\n   * @api private\n   */\n  endpointFromTemplate: function endpointFromTemplate(endpoint) {\n    if (typeof endpoint !== 'string') return endpoint;\n    var e = endpoint;\n    e = e.replace(/\\{service\\}/g, this.api.endpointPrefix);\n    e = e.replace(/\\{region\\}/g, this.config.region);\n    e = e.replace(/\\{scheme\\}/g, this.config.sslEnabled ? 'https' : 'http');\n    return e;\n  },\n\n  /**\n   * @api private\n   */\n  setEndpoint: function setEndpoint(endpoint) {\n    this.endpoint = new AWS.Endpoint(endpoint, this.config);\n  },\n\n  /**\n   * @api private\n   */\n  paginationConfig: function paginationConfig(operation, throwException) {\n    var paginator = this.api.operations[operation].paginator;\n\n    if (!paginator) {\n      if (throwException) {\n        var e = new Error();\n        throw AWS.util.error(e, 'No pagination configuration for ' + operation);\n      }\n\n      return null;\n    }\n\n    return paginator;\n  }\n});\nAWS.util.update(AWS.Service, {\n  /**\n   * Adds one method for each operation described in the api configuration\n   *\n   * @api private\n   */\n  defineMethods: function defineMethods(svc) {\n    AWS.util.each(svc.prototype.api.operations, function iterator(method) {\n      if (svc.prototype[method]) return;\n      var operation = svc.prototype.api.operations[method];\n\n      if (operation.authtype === 'none') {\n        svc.prototype[method] = function (params, callback) {\n          return this.makeUnauthenticatedRequest(method, params, callback);\n        };\n      } else {\n        svc.prototype[method] = function (params, callback) {\n          return this.makeRequest(method, params, callback);\n        };\n      }\n    });\n  },\n\n  /**\n   * Defines a new Service class using a service identifier and list of versions\n   * including an optional set of features (functions) to apply to the class\n   * prototype.\n   *\n   * @param serviceIdentifier [String] the identifier for the service\n   * @param versions [Array<String>] a list of versions that work with this\n   *   service\n   * @param features [Object] an object to attach to the prototype\n   * @return [Class<Service>] the service class defined by this function.\n   */\n  defineService: function defineService(serviceIdentifier, versions, features) {\n    AWS.Service._serviceMap[serviceIdentifier] = true;\n\n    if (!Array.isArray(versions)) {\n      features = versions;\n      versions = [];\n    }\n\n    var svc = inherit(AWS.Service, features || {});\n\n    if (typeof serviceIdentifier === 'string') {\n      AWS.Service.addVersions(svc, versions);\n      var identifier = svc.serviceIdentifier || serviceIdentifier;\n      svc.serviceIdentifier = identifier;\n    } else {\n      // defineService called with an API\n      svc.prototype.api = serviceIdentifier;\n      AWS.Service.defineMethods(svc);\n    }\n\n    AWS.SequentialExecutor.call(this.prototype); //util.clientSideMonitoring is only available in node\n\n    if (!this.prototype.publisher && AWS.util.clientSideMonitoring) {\n      var Publisher = AWS.util.clientSideMonitoring.Publisher;\n      var configProvider = AWS.util.clientSideMonitoring.configProvider;\n      var publisherConfig = configProvider();\n      this.prototype.publisher = new Publisher(publisherConfig);\n\n      if (publisherConfig.enabled) {\n        //if csm is enabled in environment, SDK should send all metrics\n        AWS.Service._clientSideMonitoring = true;\n      }\n    }\n\n    AWS.SequentialExecutor.call(svc.prototype);\n    AWS.Service.addDefaultMonitoringListeners(svc.prototype);\n    return svc;\n  },\n\n  /**\n   * @api private\n   */\n  addVersions: function addVersions(svc, versions) {\n    if (!Array.isArray(versions)) versions = [versions];\n    svc.services = svc.services || {};\n\n    for (var i = 0; i < versions.length; i++) {\n      if (svc.services[versions[i]] === undefined) {\n        svc.services[versions[i]] = null;\n      }\n    }\n\n    svc.apiVersions = Object.keys(svc.services).sort();\n  },\n\n  /**\n   * @api private\n   */\n  defineServiceApi: function defineServiceApi(superclass, version, apiConfig) {\n    var svc = inherit(superclass, {\n      serviceIdentifier: superclass.serviceIdentifier\n    });\n\n    function setApi(api) {\n      if (api.isApi) {\n        svc.prototype.api = api;\n      } else {\n        svc.prototype.api = new Api(api);\n      }\n    }\n\n    if (typeof version === 'string') {\n      if (apiConfig) {\n        setApi(apiConfig);\n      } else {\n        try {\n          setApi(AWS.apiLoader(superclass.serviceIdentifier, version));\n        } catch (err) {\n          throw AWS.util.error(err, {\n            message: 'Could not find API configuration ' + superclass.serviceIdentifier + '-' + version\n          });\n        }\n      }\n\n      if (!Object.prototype.hasOwnProperty.call(superclass.services, version)) {\n        superclass.apiVersions = superclass.apiVersions.concat(version).sort();\n      }\n\n      superclass.services[version] = svc;\n    } else {\n      setApi(version);\n    }\n\n    AWS.Service.defineMethods(svc);\n    return svc;\n  },\n\n  /**\n   * @api private\n   */\n  hasService: function hasService(identifier) {\n    return Object.prototype.hasOwnProperty.call(AWS.Service._serviceMap, identifier);\n  },\n\n  /**\n   * @param attachOn attach default monitoring listeners to object\n   *\n   * Each monitoring event should be emitted from service client to service constructor prototype and then\n   * to global service prototype like bubbling up. These default monitoring events listener will transfer\n   * the monitoring events to the upper layer.\n   * @api private\n   */\n  addDefaultMonitoringListeners: function addDefaultMonitoringListeners(attachOn) {\n    attachOn.addNamedListener('MONITOR_EVENTS_BUBBLE', 'apiCallAttempt', function EVENTS_BUBBLE(event) {\n      var baseClass = Object.getPrototypeOf(attachOn);\n      if (baseClass._events) baseClass.emit('apiCallAttempt', [event]);\n    });\n    attachOn.addNamedListener('CALL_EVENTS_BUBBLE', 'apiCall', function CALL_EVENTS_BUBBLE(event) {\n      var baseClass = Object.getPrototypeOf(attachOn);\n      if (baseClass._events) baseClass.emit('apiCall', [event]);\n    });\n  },\n\n  /**\n   * @api private\n   */\n  _serviceMap: {}\n});\nAWS.util.mixin(AWS.Service, AWS.SequentialExecutor);\n/**\n * @api private\n */\n\nmodule.exports = AWS.Service;","var AWS = require('../core');\n\nvar STS = require('../../clients/sts');\n/**\n * Represents credentials retrieved from STS Web Identity Federation support.\n *\n * By default this provider gets credentials using the\n * {AWS.STS.assumeRoleWithWebIdentity} service operation. This operation\n * requires a `RoleArn` containing the ARN of the IAM trust policy for the\n * application for which credentials will be given. In addition, the\n * `WebIdentityToken` must be set to the token provided by the identity\n * provider. See {constructor} for an example on creating a credentials\n * object with proper `RoleArn` and `WebIdentityToken` values.\n *\n * ## Refreshing Credentials from Identity Service\n *\n * In addition to AWS credentials expiring after a given amount of time, the\n * login token from the identity provider will also expire. Once this token\n * expires, it will not be usable to refresh AWS credentials, and another\n * token will be needed. The SDK does not manage refreshing of the token value,\n * but this can be done through a \"refresh token\" supported by most identity\n * providers. Consult the documentation for the identity provider for refreshing\n * tokens. Once the refreshed token is acquired, you should make sure to update\n * this new token in the credentials object's {params} property. The following\n * code will update the WebIdentityToken, assuming you have retrieved an updated\n * token from the identity provider:\n *\n * ```javascript\n * AWS.config.credentials.params.WebIdentityToken = updatedToken;\n * ```\n *\n * Future calls to `credentials.refresh()` will now use the new token.\n *\n * @!attribute params\n *   @return [map] the map of params passed to\n *     {AWS.STS.assumeRoleWithWebIdentity}. To update the token, set the\n *     `params.WebIdentityToken` property.\n * @!attribute data\n *   @return [map] the raw data response from the call to\n *     {AWS.STS.assumeRoleWithWebIdentity}. Use this if you want to get\n *     access to other properties from the response.\n */\n\n\nAWS.WebIdentityCredentials = AWS.util.inherit(AWS.Credentials, {\n  /**\n   * Creates a new credentials object.\n   * @param (see AWS.STS.assumeRoleWithWebIdentity)\n   * @example Creating a new credentials object\n   *   AWS.config.credentials = new AWS.WebIdentityCredentials({\n   *     RoleArn: 'arn:aws:iam::1234567890:role/WebIdentity',\n   *     WebIdentityToken: 'ABCDEFGHIJKLMNOP', // token from identity service\n   *     RoleSessionName: 'web' // optional name, defaults to web-identity\n   *   }, {\n   *     // optionally provide configuration to apply to the underlying AWS.STS service client\n   *     // if configuration is not provided, then configuration will be pulled from AWS.config\n   *\n   *     // specify timeout options\n   *     httpOptions: {\n   *       timeout: 100\n   *     }\n   *   });\n   * @see AWS.STS.assumeRoleWithWebIdentity\n   * @see AWS.Config\n   */\n  constructor: function WebIdentityCredentials(params, clientConfig) {\n    AWS.Credentials.call(this);\n    this.expired = true;\n    this.params = params;\n    this.params.RoleSessionName = this.params.RoleSessionName || 'web-identity';\n    this.data = null;\n    this._clientConfig = AWS.util.copy(clientConfig || {});\n  },\n\n  /**\n   * Refreshes credentials using {AWS.STS.assumeRoleWithWebIdentity}\n   *\n   * @callback callback function(err)\n   *   Called when the STS service responds (or fails). When\n   *   this callback is called with no error, it means that the credentials\n   *   information has been loaded into the object (as the `accessKeyId`,\n   *   `secretAccessKey`, and `sessionToken` properties).\n   *   @param err [Error] if an error occurred, this value will be filled\n   * @see get\n   */\n  refresh: function refresh(callback) {\n    this.coalesceRefresh(callback || AWS.util.fn.callback);\n  },\n\n  /**\n   * @api private\n   */\n  load: function load(callback) {\n    var self = this;\n    self.createClients();\n    self.service.assumeRoleWithWebIdentity(function (err, data) {\n      self.data = null;\n\n      if (!err) {\n        self.data = data;\n        self.service.credentialsFrom(data, self);\n      }\n\n      callback(err);\n    });\n  },\n\n  /**\n   * @api private\n   */\n  createClients: function createClients() {\n    if (!this.service) {\n      var stsConfig = AWS.util.merge({}, this._clientConfig);\n      stsConfig.params = this.params;\n      this.service = new STS(stsConfig);\n    }\n  }\n});","var rng = require('./lib/rng');\n\nvar bytesToUuid = require('./lib/bytesToUuid');\n\nfunction v4(options, buf, offset) {\n  var i = buf && offset || 0;\n\n  if (typeof options == 'string') {\n    buf = options === 'binary' ? new Array(16) : null;\n    options = null;\n  }\n\n  options = options || {};\n  var rnds = options.random || (options.rng || rng)(); // Per 4.4, set bits for version and `clock_seq_hi_and_reserved`\n\n  rnds[6] = rnds[6] & 0x0f | 0x40;\n  rnds[8] = rnds[8] & 0x3f | 0x80; // Copy bytes to buffer, if provided\n\n  if (buf) {\n    for (var ii = 0; ii < 16; ++ii) {\n      buf[i + ii] = rnds[ii];\n    }\n  }\n\n  return buf || bytesToUuid(rnds);\n}\n\nmodule.exports = v4;","/*! https://mths.be/punycode v1.3.2 by @mathias */\n;\n\n(function (root) {\n  /** Detect free variables */\n  var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n  var freeModule = typeof module == 'object' && module && !module.nodeType && module;\n  var freeGlobal = typeof global == 'object' && global;\n\n  if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal || freeGlobal.self === freeGlobal) {\n    root = freeGlobal;\n  }\n  /**\n   * The `punycode` object.\n   * @name punycode\n   * @type Object\n   */\n\n\n  var punycode,\n\n  /** Highest positive signed 32-bit float value */\n  maxInt = 2147483647,\n      // aka. 0x7FFFFFFF or 2^31-1\n\n  /** Bootstring parameters */\n  base = 36,\n      tMin = 1,\n      tMax = 26,\n      skew = 38,\n      damp = 700,\n      initialBias = 72,\n      initialN = 128,\n      // 0x80\n  delimiter = '-',\n      // '\\x2D'\n\n  /** Regular expressions */\n  regexPunycode = /^xn--/,\n      regexNonASCII = /[^\\x20-\\x7E]/,\n      // unprintable ASCII chars + non-ASCII chars\n  regexSeparators = /[\\x2E\\u3002\\uFF0E\\uFF61]/g,\n      // RFC 3490 separators\n\n  /** Error messages */\n  errors = {\n    'overflow': 'Overflow: input needs wider integers to process',\n    'not-basic': 'Illegal input >= 0x80 (not a basic code point)',\n    'invalid-input': 'Invalid input'\n  },\n\n  /** Convenience shortcuts */\n  baseMinusTMin = base - tMin,\n      floor = Math.floor,\n      stringFromCharCode = String.fromCharCode,\n\n  /** Temporary variable */\n  key;\n  /*--------------------------------------------------------------------------*/\n\n  /**\n   * A generic error utility function.\n   * @private\n   * @param {String} type The error type.\n   * @returns {Error} Throws a `RangeError` with the applicable error message.\n   */\n\n  function error(type) {\n    throw RangeError(errors[type]);\n  }\n  /**\n   * A generic `Array#map` utility function.\n   * @private\n   * @param {Array} array The array to iterate over.\n   * @param {Function} callback The function that gets called for every array\n   * item.\n   * @returns {Array} A new array of values returned by the callback function.\n   */\n\n\n  function map(array, fn) {\n    var length = array.length;\n    var result = [];\n\n    while (length--) {\n      result[length] = fn(array[length]);\n    }\n\n    return result;\n  }\n  /**\n   * A simple `Array#map`-like wrapper to work with domain name strings or email\n   * addresses.\n   * @private\n   * @param {String} domain The domain name or email address.\n   * @param {Function} callback The function that gets called for every\n   * character.\n   * @returns {Array} A new string of characters returned by the callback\n   * function.\n   */\n\n\n  function mapDomain(string, fn) {\n    var parts = string.split('@');\n    var result = '';\n\n    if (parts.length > 1) {\n      // In email addresses, only the domain name should be punycoded. Leave\n      // the local part (i.e. everything up to `@`) intact.\n      result = parts[0] + '@';\n      string = parts[1];\n    } // Avoid `split(regex)` for IE8 compatibility. See #17.\n\n\n    string = string.replace(regexSeparators, '\\x2E');\n    var labels = string.split('.');\n    var encoded = map(labels, fn).join('.');\n    return result + encoded;\n  }\n  /**\n   * Creates an array containing the numeric code points of each Unicode\n   * character in the string. While JavaScript uses UCS-2 internally,\n   * this function will convert a pair of surrogate halves (each of which\n   * UCS-2 exposes as separate characters) into a single code point,\n   * matching UTF-16.\n   * @see `punycode.ucs2.encode`\n   * @see <https://mathiasbynens.be/notes/javascript-encoding>\n   * @memberOf punycode.ucs2\n   * @name decode\n   * @param {String} string The Unicode input string (UCS-2).\n   * @returns {Array} The new array of code points.\n   */\n\n\n  function ucs2decode(string) {\n    var output = [],\n        counter = 0,\n        length = string.length,\n        value,\n        extra;\n\n    while (counter < length) {\n      value = string.charCodeAt(counter++);\n\n      if (value >= 0xD800 && value <= 0xDBFF && counter < length) {\n        // high surrogate, and there is a next character\n        extra = string.charCodeAt(counter++);\n\n        if ((extra & 0xFC00) == 0xDC00) {\n          // low surrogate\n          output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);\n        } else {\n          // unmatched surrogate; only append this code unit, in case the next\n          // code unit is the high surrogate of a surrogate pair\n          output.push(value);\n          counter--;\n        }\n      } else {\n        output.push(value);\n      }\n    }\n\n    return output;\n  }\n  /**\n   * Creates a string based on an array of numeric code points.\n   * @see `punycode.ucs2.decode`\n   * @memberOf punycode.ucs2\n   * @name encode\n   * @param {Array} codePoints The array of numeric code points.\n   * @returns {String} The new Unicode string (UCS-2).\n   */\n\n\n  function ucs2encode(array) {\n    return map(array, function (value) {\n      var output = '';\n\n      if (value > 0xFFFF) {\n        value -= 0x10000;\n        output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);\n        value = 0xDC00 | value & 0x3FF;\n      }\n\n      output += stringFromCharCode(value);\n      return output;\n    }).join('');\n  }\n  /**\n   * Converts a basic code point into a digit/integer.\n   * @see `digitToBasic()`\n   * @private\n   * @param {Number} codePoint The basic numeric code point value.\n   * @returns {Number} The numeric value of a basic code point (for use in\n   * representing integers) in the range `0` to `base - 1`, or `base` if\n   * the code point does not represent a value.\n   */\n\n\n  function basicToDigit(codePoint) {\n    if (codePoint - 48 < 10) {\n      return codePoint - 22;\n    }\n\n    if (codePoint - 65 < 26) {\n      return codePoint - 65;\n    }\n\n    if (codePoint - 97 < 26) {\n      return codePoint - 97;\n    }\n\n    return base;\n  }\n  /**\n   * Converts a digit/integer into a basic code point.\n   * @see `basicToDigit()`\n   * @private\n   * @param {Number} digit The numeric value of a basic code point.\n   * @returns {Number} The basic code point whose value (when used for\n   * representing integers) is `digit`, which needs to be in the range\n   * `0` to `base - 1`. If `flag` is non-zero, the uppercase form is\n   * used; else, the lowercase form is used. The behavior is undefined\n   * if `flag` is non-zero and `digit` has no uppercase form.\n   */\n\n\n  function digitToBasic(digit, flag) {\n    //  0..25 map to ASCII a..z or A..Z\n    // 26..35 map to ASCII 0..9\n    return digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5);\n  }\n  /**\n   * Bias adaptation function as per section 3.4 of RFC 3492.\n   * http://tools.ietf.org/html/rfc3492#section-3.4\n   * @private\n   */\n\n\n  function adapt(delta, numPoints, firstTime) {\n    var k = 0;\n    delta = firstTime ? floor(delta / damp) : delta >> 1;\n    delta += floor(delta / numPoints);\n\n    for (;\n    /* no initialization */\n    delta > baseMinusTMin * tMax >> 1; k += base) {\n      delta = floor(delta / baseMinusTMin);\n    }\n\n    return floor(k + (baseMinusTMin + 1) * delta / (delta + skew));\n  }\n  /**\n   * Converts a Punycode string of ASCII-only symbols to a string of Unicode\n   * symbols.\n   * @memberOf punycode\n   * @param {String} input The Punycode string of ASCII-only symbols.\n   * @returns {String} The resulting string of Unicode symbols.\n   */\n\n\n  function decode(input) {\n    // Don't use UCS-2\n    var output = [],\n        inputLength = input.length,\n        out,\n        i = 0,\n        n = initialN,\n        bias = initialBias,\n        basic,\n        j,\n        index,\n        oldi,\n        w,\n        k,\n        digit,\n        t,\n\n    /** Cached calculation results */\n    baseMinusT; // Handle the basic code points: let `basic` be the number of input code\n    // points before the last delimiter, or `0` if there is none, then copy\n    // the first basic code points to the output.\n\n    basic = input.lastIndexOf(delimiter);\n\n    if (basic < 0) {\n      basic = 0;\n    }\n\n    for (j = 0; j < basic; ++j) {\n      // if it's not a basic code point\n      if (input.charCodeAt(j) >= 0x80) {\n        error('not-basic');\n      }\n\n      output.push(input.charCodeAt(j));\n    } // Main decoding loop: start just after the last delimiter if any basic code\n    // points were copied; start at the beginning otherwise.\n\n\n    for (index = basic > 0 ? basic + 1 : 0; index < inputLength;)\n    /* no final expression */\n    {\n      // `index` is the index of the next character to be consumed.\n      // Decode a generalized variable-length integer into `delta`,\n      // which gets added to `i`. The overflow checking is easier\n      // if we increase `i` as we go, then subtract off its starting\n      // value at the end to obtain `delta`.\n      for (oldi = i, w = 1, k = base;;\n      /* no condition */\n      k += base) {\n        if (index >= inputLength) {\n          error('invalid-input');\n        }\n\n        digit = basicToDigit(input.charCodeAt(index++));\n\n        if (digit >= base || digit > floor((maxInt - i) / w)) {\n          error('overflow');\n        }\n\n        i += digit * w;\n        t = k <= bias ? tMin : k >= bias + tMax ? tMax : k - bias;\n\n        if (digit < t) {\n          break;\n        }\n\n        baseMinusT = base - t;\n\n        if (w > floor(maxInt / baseMinusT)) {\n          error('overflow');\n        }\n\n        w *= baseMinusT;\n      }\n\n      out = output.length + 1;\n      bias = adapt(i - oldi, out, oldi == 0); // `i` was supposed to wrap around from `out` to `0`,\n      // incrementing `n` each time, so we'll fix that now:\n\n      if (floor(i / out) > maxInt - n) {\n        error('overflow');\n      }\n\n      n += floor(i / out);\n      i %= out; // Insert `n` at position `i` of the output\n\n      output.splice(i++, 0, n);\n    }\n\n    return ucs2encode(output);\n  }\n  /**\n   * Converts a string of Unicode symbols (e.g. a domain name label) to a\n   * Punycode string of ASCII-only symbols.\n   * @memberOf punycode\n   * @param {String} input The string of Unicode symbols.\n   * @returns {String} The resulting Punycode string of ASCII-only symbols.\n   */\n\n\n  function encode(input) {\n    var n,\n        delta,\n        handledCPCount,\n        basicLength,\n        bias,\n        j,\n        m,\n        q,\n        k,\n        t,\n        currentValue,\n        output = [],\n\n    /** `inputLength` will hold the number of code points in `input`. */\n    inputLength,\n\n    /** Cached calculation results */\n    handledCPCountPlusOne,\n        baseMinusT,\n        qMinusT; // Convert the input in UCS-2 to Unicode\n\n    input = ucs2decode(input); // Cache the length\n\n    inputLength = input.length; // Initialize the state\n\n    n = initialN;\n    delta = 0;\n    bias = initialBias; // Handle the basic code points\n\n    for (j = 0; j < inputLength; ++j) {\n      currentValue = input[j];\n\n      if (currentValue < 0x80) {\n        output.push(stringFromCharCode(currentValue));\n      }\n    }\n\n    handledCPCount = basicLength = output.length; // `handledCPCount` is the number of code points that have been handled;\n    // `basicLength` is the number of basic code points.\n    // Finish the basic string - if it is not empty - with a delimiter\n\n    if (basicLength) {\n      output.push(delimiter);\n    } // Main encoding loop:\n\n\n    while (handledCPCount < inputLength) {\n      // All non-basic code points < n have been handled already. Find the next\n      // larger one:\n      for (m = maxInt, j = 0; j < inputLength; ++j) {\n        currentValue = input[j];\n\n        if (currentValue >= n && currentValue < m) {\n          m = currentValue;\n        }\n      } // Increase `delta` enough to advance the decoder's <n,i> state to <m,0>,\n      // but guard against overflow\n\n\n      handledCPCountPlusOne = handledCPCount + 1;\n\n      if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) {\n        error('overflow');\n      }\n\n      delta += (m - n) * handledCPCountPlusOne;\n      n = m;\n\n      for (j = 0; j < inputLength; ++j) {\n        currentValue = input[j];\n\n        if (currentValue < n && ++delta > maxInt) {\n          error('overflow');\n        }\n\n        if (currentValue == n) {\n          // Represent delta as a generalized variable-length integer\n          for (q = delta, k = base;;\n          /* no condition */\n          k += base) {\n            t = k <= bias ? tMin : k >= bias + tMax ? tMax : k - bias;\n\n            if (q < t) {\n              break;\n            }\n\n            qMinusT = q - t;\n            baseMinusT = base - t;\n            output.push(stringFromCharCode(digitToBasic(t + qMinusT % baseMinusT, 0)));\n            q = floor(qMinusT / baseMinusT);\n          }\n\n          output.push(stringFromCharCode(digitToBasic(q, 0)));\n          bias = adapt(delta, handledCPCountPlusOne, handledCPCount == basicLength);\n          delta = 0;\n          ++handledCPCount;\n        }\n      }\n\n      ++delta;\n      ++n;\n    }\n\n    return output.join('');\n  }\n  /**\n   * Converts a Punycode string representing a domain name or an email address\n   * to Unicode. Only the Punycoded parts of the input will be converted, i.e.\n   * it doesn't matter if you call it on a string that has already been\n   * converted to Unicode.\n   * @memberOf punycode\n   * @param {String} input The Punycoded domain name or email address to\n   * convert to Unicode.\n   * @returns {String} The Unicode representation of the given Punycode\n   * string.\n   */\n\n\n  function toUnicode(input) {\n    return mapDomain(input, function (string) {\n      return regexPunycode.test(string) ? decode(string.slice(4).toLowerCase()) : string;\n    });\n  }\n  /**\n   * Converts a Unicode string representing a domain name or an email address to\n   * Punycode. Only the non-ASCII parts of the domain name will be converted,\n   * i.e. it doesn't matter if you call it with a domain that's already in\n   * ASCII.\n   * @memberOf punycode\n   * @param {String} input The domain name or email address to convert, as a\n   * Unicode string.\n   * @returns {String} The Punycode representation of the given domain name or\n   * email address.\n   */\n\n\n  function toASCII(input) {\n    return mapDomain(input, function (string) {\n      return regexNonASCII.test(string) ? 'xn--' + encode(string) : string;\n    });\n  }\n  /*--------------------------------------------------------------------------*/\n\n  /** Define the public API */\n\n\n  punycode = {\n    /**\n     * A string representing the current Punycode.js version number.\n     * @memberOf punycode\n     * @type String\n     */\n    'version': '1.3.2',\n\n    /**\n     * An object of methods to convert from JavaScript's internal character\n     * representation (UCS-2) to Unicode code points, and back.\n     * @see <https://mathiasbynens.be/notes/javascript-encoding>\n     * @memberOf punycode\n     * @type Object\n     */\n    'ucs2': {\n      'decode': ucs2decode,\n      'encode': ucs2encode\n    },\n    'decode': decode,\n    'encode': encode,\n    'toASCII': toASCII,\n    'toUnicode': toUnicode\n  };\n  /** Expose `punycode` */\n  // Some AMD build optimizers, like r.js, check for specific condition patterns\n  // like the following:\n\n  if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {\n    define('punycode', function () {\n      return punycode;\n    });\n  } else if (freeExports && freeModule) {\n    if (module.exports == freeExports) {\n      // in Node.js or RingoJS v0.8.0+\n      freeModule.exports = punycode;\n    } else {\n      // in Narwhal or RingoJS v0.7.0-\n      for (key in punycode) {\n        punycode.hasOwnProperty(key) && (freeExports[key] = punycode[key]);\n      }\n    }\n  } else {\n    // in Rhino or a web browser\n    root.punycode = punycode;\n  }\n})(this);","var util = require('../core').util;\n\nvar toBuffer = util.buffer.toBuffer; // All prelude components are unsigned, 32-bit integers\n\nvar PRELUDE_MEMBER_LENGTH = 4; // The prelude consists of two components\n\nvar PRELUDE_LENGTH = PRELUDE_MEMBER_LENGTH * 2; // Checksums are always CRC32 hashes.\n\nvar CHECKSUM_LENGTH = 4; // Messages must include a full prelude, a prelude checksum, and a message checksum\n\nvar MINIMUM_MESSAGE_LENGTH = PRELUDE_LENGTH + CHECKSUM_LENGTH * 2;\n/**\n * @api private\n *\n * @param {Buffer} message\n */\n\nfunction splitMessage(message) {\n  if (!util.Buffer.isBuffer(message)) message = toBuffer(message);\n\n  if (message.length < MINIMUM_MESSAGE_LENGTH) {\n    throw new Error('Provided message too short to accommodate event stream message overhead');\n  }\n\n  if (message.length !== message.readUInt32BE(0)) {\n    throw new Error('Reported message length does not match received message length');\n  }\n\n  var expectedPreludeChecksum = message.readUInt32BE(PRELUDE_LENGTH);\n\n  if (expectedPreludeChecksum !== util.crypto.crc32(message.slice(0, PRELUDE_LENGTH))) {\n    throw new Error('The prelude checksum specified in the message (' + expectedPreludeChecksum + ') does not match the calculated CRC32 checksum.');\n  }\n\n  var expectedMessageChecksum = message.readUInt32BE(message.length - CHECKSUM_LENGTH);\n\n  if (expectedMessageChecksum !== util.crypto.crc32(message.slice(0, message.length - CHECKSUM_LENGTH))) {\n    throw new Error('The message checksum did not match the expected value of ' + expectedMessageChecksum);\n  }\n\n  var headersStart = PRELUDE_LENGTH + CHECKSUM_LENGTH;\n  var headersEnd = headersStart + message.readUInt32BE(PRELUDE_MEMBER_LENGTH);\n  return {\n    headers: message.slice(headersStart, headersEnd),\n    body: message.slice(headersEnd, message.length - CHECKSUM_LENGTH)\n  };\n}\n/**\n * @api private\n */\n\n\nmodule.exports = {\n  splitMessage: splitMessage\n};","/*!\n * JavaScript Cookie v2.2.1\n * https://github.com/js-cookie/js-cookie\n *\n * Copyright 2006, 2015 Klaus Hartl & Fagner Brack\n * Released under the MIT license\n */\n;\n\n(function (factory) {\n  var registeredInModuleLoader;\n\n  if (typeof define === 'function' && define.amd) {\n    define(factory);\n    registeredInModuleLoader = true;\n  }\n\n  if (typeof exports === 'object') {\n    module.exports = factory();\n    registeredInModuleLoader = true;\n  }\n\n  if (!registeredInModuleLoader) {\n    var OldCookies = window.Cookies;\n    var api = window.Cookies = factory();\n\n    api.noConflict = function () {\n      window.Cookies = OldCookies;\n      return api;\n    };\n  }\n})(function () {\n  function extend() {\n    var i = 0;\n    var result = {};\n\n    for (; i < arguments.length; i++) {\n      var attributes = arguments[i];\n\n      for (var key in attributes) {\n        result[key] = attributes[key];\n      }\n    }\n\n    return result;\n  }\n\n  function decode(s) {\n    return s.replace(/(%[0-9A-Z]{2})+/g, decodeURIComponent);\n  }\n\n  function init(converter) {\n    function api() {}\n\n    function set(key, value, attributes) {\n      if (typeof document === 'undefined') {\n        return;\n      }\n\n      attributes = extend({\n        path: '/'\n      }, api.defaults, attributes);\n\n      if (typeof attributes.expires === 'number') {\n        attributes.expires = new Date(new Date() * 1 + attributes.expires * 864e+5);\n      } // We're using \"expires\" because \"max-age\" is not supported by IE\n\n\n      attributes.expires = attributes.expires ? attributes.expires.toUTCString() : '';\n\n      try {\n        var result = JSON.stringify(value);\n\n        if (/^[\\{\\[]/.test(result)) {\n          value = result;\n        }\n      } catch (e) {}\n\n      value = converter.write ? converter.write(value, key) : encodeURIComponent(String(value)).replace(/%(23|24|26|2B|3A|3C|3E|3D|2F|3F|40|5B|5D|5E|60|7B|7D|7C)/g, decodeURIComponent);\n      key = encodeURIComponent(String(key)).replace(/%(23|24|26|2B|5E|60|7C)/g, decodeURIComponent).replace(/[\\(\\)]/g, escape);\n      var stringifiedAttributes = '';\n\n      for (var attributeName in attributes) {\n        if (!attributes[attributeName]) {\n          continue;\n        }\n\n        stringifiedAttributes += '; ' + attributeName;\n\n        if (attributes[attributeName] === true) {\n          continue;\n        } // Considers RFC 6265 section 5.2:\n        // ...\n        // 3.  If the remaining unparsed-attributes contains a %x3B (\";\")\n        //     character:\n        // Consume the characters of the unparsed-attributes up to,\n        // not including, the first %x3B (\";\") character.\n        // ...\n\n\n        stringifiedAttributes += '=' + attributes[attributeName].split(';')[0];\n      }\n\n      return document.cookie = key + '=' + value + stringifiedAttributes;\n    }\n\n    function get(key, json) {\n      if (typeof document === 'undefined') {\n        return;\n      }\n\n      var jar = {}; // To prevent the for loop in the first place assign an empty array\n      // in case there are no cookies at all.\n\n      var cookies = document.cookie ? document.cookie.split('; ') : [];\n      var i = 0;\n\n      for (; i < cookies.length; i++) {\n        var parts = cookies[i].split('=');\n        var cookie = parts.slice(1).join('=');\n\n        if (!json && cookie.charAt(0) === '\"') {\n          cookie = cookie.slice(1, -1);\n        }\n\n        try {\n          var name = decode(parts[0]);\n          cookie = (converter.read || converter)(cookie, name) || decode(cookie);\n\n          if (json) {\n            try {\n              cookie = JSON.parse(cookie);\n            } catch (e) {}\n          }\n\n          jar[name] = cookie;\n\n          if (key === name) {\n            break;\n          }\n        } catch (e) {}\n      }\n\n      return key ? jar[key] : jar;\n    }\n\n    api.set = set;\n\n    api.get = function (key) {\n      return get(key, false\n      /* read as raw */\n      );\n    };\n\n    api.getJSON = function (key) {\n      return get(key, true\n      /* read as json */\n      );\n    };\n\n    api.remove = function (key, attributes) {\n      set(key, '', extend(attributes, {\n        expires: -1\n      }));\n    };\n\n    api.defaults = {};\n    api.withConverter = init;\n    return api;\n  }\n\n  return init(function () {});\n});","require('./lib/browser_loader');\n\nvar AWS = require('./lib/core');\n\nif (typeof window !== 'undefined') window.AWS = AWS;\nif (typeof module !== 'undefined') module.exports = AWS;\nif (typeof self !== 'undefined') self.AWS = AWS;","var AWS = require('./core');\n\nvar SequentialExecutor = require('./sequential_executor');\n\nvar DISCOVER_ENDPOINT = require('./discover_endpoint').discoverEndpoint;\n/**\n * The namespace used to register global event listeners for request building\n * and sending.\n */\n\n\nAWS.EventListeners = {\n  /**\n   * @!attribute VALIDATE_CREDENTIALS\n   *   A request listener that validates whether the request is being\n   *   sent with credentials.\n   *   Handles the {AWS.Request~validate 'validate' Request event}\n   *   @example Sending a request without validating credentials\n   *     var listener = AWS.EventListeners.Core.VALIDATE_CREDENTIALS;\n   *     request.removeListener('validate', listener);\n   *   @readonly\n   *   @return [Function]\n   * @!attribute VALIDATE_REGION\n   *   A request listener that validates whether the region is set\n   *   for a request.\n   *   Handles the {AWS.Request~validate 'validate' Request event}\n   *   @example Sending a request without validating region configuration\n   *     var listener = AWS.EventListeners.Core.VALIDATE_REGION;\n   *     request.removeListener('validate', listener);\n   *   @readonly\n   *   @return [Function]\n   * @!attribute VALIDATE_PARAMETERS\n   *   A request listener that validates input parameters in a request.\n   *   Handles the {AWS.Request~validate 'validate' Request event}\n   *   @example Sending a request without validating parameters\n   *     var listener = AWS.EventListeners.Core.VALIDATE_PARAMETERS;\n   *     request.removeListener('validate', listener);\n   *   @example Disable parameter validation globally\n   *     AWS.EventListeners.Core.removeListener('validate',\n   *       AWS.EventListeners.Core.VALIDATE_REGION);\n   *   @readonly\n   *   @return [Function]\n   * @!attribute SEND\n   *   A request listener that initiates the HTTP connection for a\n   *   request being sent. Handles the {AWS.Request~send 'send' Request event}\n   *   @example Replacing the HTTP handler\n   *     var listener = AWS.EventListeners.Core.SEND;\n   *     request.removeListener('send', listener);\n   *     request.on('send', function(response) {\n   *       customHandler.send(response);\n   *     });\n   *   @return [Function]\n   *   @readonly\n   * @!attribute HTTP_DATA\n   *   A request listener that reads data from the HTTP connection in order\n   *   to build the response data.\n   *   Handles the {AWS.Request~httpData 'httpData' Request event}.\n   *   Remove this handler if you are overriding the 'httpData' event and\n   *   do not want extra data processing and buffering overhead.\n   *   @example Disabling default data processing\n   *     var listener = AWS.EventListeners.Core.HTTP_DATA;\n   *     request.removeListener('httpData', listener);\n   *   @return [Function]\n   *   @readonly\n   */\n  Core: {}\n  /* doc hack */\n\n};\n/**\n * @api private\n */\n\nfunction getOperationAuthtype(req) {\n  if (!req.service.api.operations) {\n    return '';\n  }\n\n  var operation = req.service.api.operations[req.operation];\n  return operation ? operation.authtype : '';\n}\n\nAWS.EventListeners = {\n  Core: new SequentialExecutor().addNamedListeners(function (add, addAsync) {\n    addAsync('VALIDATE_CREDENTIALS', 'validate', function VALIDATE_CREDENTIALS(req, done) {\n      if (!req.service.api.signatureVersion) return done(); // none\n\n      req.service.config.getCredentials(function (err) {\n        if (err) {\n          req.response.error = AWS.util.error(err, {\n            code: 'CredentialsError',\n            message: 'Missing credentials in config'\n          });\n        }\n\n        done();\n      });\n    });\n    add('VALIDATE_REGION', 'validate', function VALIDATE_REGION(req) {\n      if (!req.service.config.region && !req.service.isGlobalEndpoint) {\n        req.response.error = AWS.util.error(new Error(), {\n          code: 'ConfigError',\n          message: 'Missing region in config'\n        });\n      }\n    });\n    add('BUILD_IDEMPOTENCY_TOKENS', 'validate', function BUILD_IDEMPOTENCY_TOKENS(req) {\n      if (!req.service.api.operations) {\n        return;\n      }\n\n      var operation = req.service.api.operations[req.operation];\n\n      if (!operation) {\n        return;\n      }\n\n      var idempotentMembers = operation.idempotentMembers;\n\n      if (!idempotentMembers.length) {\n        return;\n      } // creates a copy of params so user's param object isn't mutated\n\n\n      var params = AWS.util.copy(req.params);\n\n      for (var i = 0, iLen = idempotentMembers.length; i < iLen; i++) {\n        if (!params[idempotentMembers[i]]) {\n          // add the member\n          params[idempotentMembers[i]] = AWS.util.uuid.v4();\n        }\n      }\n\n      req.params = params;\n    });\n    add('VALIDATE_PARAMETERS', 'validate', function VALIDATE_PARAMETERS(req) {\n      if (!req.service.api.operations) {\n        return;\n      }\n\n      var rules = req.service.api.operations[req.operation].input;\n      var validation = req.service.config.paramValidation;\n      new AWS.ParamValidator(validation).validate(rules, req.params);\n    });\n    addAsync('COMPUTE_SHA256', 'afterBuild', function COMPUTE_SHA256(req, done) {\n      req.haltHandlersOnError();\n\n      if (!req.service.api.operations) {\n        return;\n      }\n\n      var operation = req.service.api.operations[req.operation];\n      var authtype = operation ? operation.authtype : '';\n      if (!req.service.api.signatureVersion && !authtype) return done(); // none\n\n      if (req.service.getSignerClass(req) === AWS.Signers.V4) {\n        var body = req.httpRequest.body || '';\n\n        if (authtype.indexOf('unsigned-body') >= 0) {\n          req.httpRequest.headers['X-Amz-Content-Sha256'] = 'UNSIGNED-PAYLOAD';\n          return done();\n        }\n\n        AWS.util.computeSha256(body, function (err, sha) {\n          if (err) {\n            done(err);\n          } else {\n            req.httpRequest.headers['X-Amz-Content-Sha256'] = sha;\n            done();\n          }\n        });\n      } else {\n        done();\n      }\n    });\n    add('SET_CONTENT_LENGTH', 'afterBuild', function SET_CONTENT_LENGTH(req) {\n      var authtype = getOperationAuthtype(req);\n      var payloadMember = AWS.util.getRequestPayloadShape(req);\n\n      if (req.httpRequest.headers['Content-Length'] === undefined) {\n        try {\n          var length = AWS.util.string.byteLength(req.httpRequest.body);\n          req.httpRequest.headers['Content-Length'] = length;\n        } catch (err) {\n          if (payloadMember && payloadMember.isStreaming) {\n            if (payloadMember.requiresLength) {\n              //streaming payload requires length(s3, glacier)\n              throw err;\n            } else if (authtype.indexOf('unsigned-body') >= 0) {\n              //unbounded streaming payload(lex, mediastore)\n              req.httpRequest.headers['Transfer-Encoding'] = 'chunked';\n              return;\n            } else {\n              throw err;\n            }\n          }\n\n          throw err;\n        }\n      }\n    });\n    add('SET_HTTP_HOST', 'afterBuild', function SET_HTTP_HOST(req) {\n      req.httpRequest.headers['Host'] = req.httpRequest.endpoint.host;\n    });\n    add('RESTART', 'restart', function RESTART() {\n      var err = this.response.error;\n      if (!err || !err.retryable) return;\n      this.httpRequest = new AWS.HttpRequest(this.service.endpoint, this.service.region);\n\n      if (this.response.retryCount < this.service.config.maxRetries) {\n        this.response.retryCount++;\n      } else {\n        this.response.error = null;\n      }\n    });\n    var addToHead = true;\n    addAsync('DISCOVER_ENDPOINT', 'sign', DISCOVER_ENDPOINT, addToHead);\n    addAsync('SIGN', 'sign', function SIGN(req, done) {\n      var service = req.service;\n      var operations = req.service.api.operations || {};\n      var operation = operations[req.operation];\n      var authtype = operation ? operation.authtype : '';\n      if (!service.api.signatureVersion && !authtype) return done(); // none\n\n      service.config.getCredentials(function (err, credentials) {\n        if (err) {\n          req.response.error = err;\n          return done();\n        }\n\n        try {\n          var date = service.getSkewCorrectedDate();\n          var SignerClass = service.getSignerClass(req);\n          var signer = new SignerClass(req.httpRequest, service.api.signingName || service.api.endpointPrefix, {\n            signatureCache: service.config.signatureCache,\n            operation: operation,\n            signatureVersion: service.api.signatureVersion\n          });\n          signer.setServiceClientId(service._clientId); // clear old authorization headers\n\n          delete req.httpRequest.headers['Authorization'];\n          delete req.httpRequest.headers['Date'];\n          delete req.httpRequest.headers['X-Amz-Date']; // add new authorization\n\n          signer.addAuthorization(credentials, date);\n          req.signedAt = date;\n        } catch (e) {\n          req.response.error = e;\n        }\n\n        done();\n      });\n    });\n    add('VALIDATE_RESPONSE', 'validateResponse', function VALIDATE_RESPONSE(resp) {\n      if (this.service.successfulResponse(resp, this)) {\n        resp.data = {};\n        resp.error = null;\n      } else {\n        resp.data = null;\n        resp.error = AWS.util.error(new Error(), {\n          code: 'UnknownError',\n          message: 'An unknown error occurred.'\n        });\n      }\n    });\n    addAsync('SEND', 'send', function SEND(resp, done) {\n      resp.httpResponse._abortCallback = done;\n      resp.error = null;\n      resp.data = null;\n\n      function callback(httpResp) {\n        resp.httpResponse.stream = httpResp;\n        var stream = resp.request.httpRequest.stream;\n        var service = resp.request.service;\n        var api = service.api;\n        var operationName = resp.request.operation;\n        var operation = api.operations[operationName] || {};\n        httpResp.on('headers', function onHeaders(statusCode, headers, statusMessage) {\n          resp.request.emit('httpHeaders', [statusCode, headers, resp, statusMessage]);\n\n          if (!resp.httpResponse.streaming) {\n            if (AWS.HttpClient.streamsApiVersion === 2) {\n              // streams2 API check\n              // if we detect event streams, we're going to have to\n              // return the stream immediately\n              if (operation.hasEventOutput && service.successfulResponse(resp)) {\n                // skip reading the IncomingStream\n                resp.request.emit('httpDone');\n                done();\n                return;\n              }\n\n              httpResp.on('readable', function onReadable() {\n                var data = httpResp.read();\n\n                if (data !== null) {\n                  resp.request.emit('httpData', [data, resp]);\n                }\n              });\n            } else {\n              // legacy streams API\n              httpResp.on('data', function onData(data) {\n                resp.request.emit('httpData', [data, resp]);\n              });\n            }\n          }\n        });\n        httpResp.on('end', function onEnd() {\n          if (!stream || !stream.didCallback) {\n            if (AWS.HttpClient.streamsApiVersion === 2 && operation.hasEventOutput && service.successfulResponse(resp)) {\n              // don't concatenate response chunks when streaming event stream data when response is successful\n              return;\n            }\n\n            resp.request.emit('httpDone');\n            done();\n          }\n        });\n      }\n\n      function progress(httpResp) {\n        httpResp.on('sendProgress', function onSendProgress(value) {\n          resp.request.emit('httpUploadProgress', [value, resp]);\n        });\n        httpResp.on('receiveProgress', function onReceiveProgress(value) {\n          resp.request.emit('httpDownloadProgress', [value, resp]);\n        });\n      }\n\n      function error(err) {\n        if (err.code !== 'RequestAbortedError') {\n          var errCode = err.code === 'TimeoutError' ? err.code : 'NetworkingError';\n          err = AWS.util.error(err, {\n            code: errCode,\n            region: resp.request.httpRequest.region,\n            hostname: resp.request.httpRequest.endpoint.hostname,\n            retryable: true\n          });\n        }\n\n        resp.error = err;\n        resp.request.emit('httpError', [resp.error, resp], function () {\n          done();\n        });\n      }\n\n      function executeSend() {\n        var http = AWS.HttpClient.getInstance();\n        var httpOptions = resp.request.service.config.httpOptions || {};\n\n        try {\n          var stream = http.handleRequest(resp.request.httpRequest, httpOptions, callback, error);\n          progress(stream);\n        } catch (err) {\n          error(err);\n        }\n      }\n\n      var timeDiff = (resp.request.service.getSkewCorrectedDate() - this.signedAt) / 1000;\n\n      if (timeDiff >= 60 * 10) {\n        // if we signed 10min ago, re-sign\n        this.emit('sign', [this], function (err) {\n          if (err) done(err);else executeSend();\n        });\n      } else {\n        executeSend();\n      }\n    });\n    add('HTTP_HEADERS', 'httpHeaders', function HTTP_HEADERS(statusCode, headers, resp, statusMessage) {\n      resp.httpResponse.statusCode = statusCode;\n      resp.httpResponse.statusMessage = statusMessage;\n      resp.httpResponse.headers = headers;\n      resp.httpResponse.body = AWS.util.buffer.toBuffer('');\n      resp.httpResponse.buffers = [];\n      resp.httpResponse.numBytes = 0;\n      var dateHeader = headers.date || headers.Date;\n      var service = resp.request.service;\n\n      if (dateHeader) {\n        var serverTime = Date.parse(dateHeader);\n\n        if (service.config.correctClockSkew && service.isClockSkewed(serverTime)) {\n          service.applyClockOffset(serverTime);\n        }\n      }\n    });\n    add('HTTP_DATA', 'httpData', function HTTP_DATA(chunk, resp) {\n      if (chunk) {\n        if (AWS.util.isNode()) {\n          resp.httpResponse.numBytes += chunk.length;\n          var total = resp.httpResponse.headers['content-length'];\n          var progress = {\n            loaded: resp.httpResponse.numBytes,\n            total: total\n          };\n          resp.request.emit('httpDownloadProgress', [progress, resp]);\n        }\n\n        resp.httpResponse.buffers.push(AWS.util.buffer.toBuffer(chunk));\n      }\n    });\n    add('HTTP_DONE', 'httpDone', function HTTP_DONE(resp) {\n      // convert buffers array into single buffer\n      if (resp.httpResponse.buffers && resp.httpResponse.buffers.length > 0) {\n        var body = AWS.util.buffer.concat(resp.httpResponse.buffers);\n        resp.httpResponse.body = body;\n      }\n\n      delete resp.httpResponse.numBytes;\n      delete resp.httpResponse.buffers;\n    });\n    add('FINALIZE_ERROR', 'retry', function FINALIZE_ERROR(resp) {\n      if (resp.httpResponse.statusCode) {\n        resp.error.statusCode = resp.httpResponse.statusCode;\n\n        if (resp.error.retryable === undefined) {\n          resp.error.retryable = this.service.retryableError(resp.error, this);\n        }\n      }\n    });\n    add('INVALIDATE_CREDENTIALS', 'retry', function INVALIDATE_CREDENTIALS(resp) {\n      if (!resp.error) return;\n\n      switch (resp.error.code) {\n        case 'RequestExpired': // EC2 only\n\n        case 'ExpiredTokenException':\n        case 'ExpiredToken':\n          resp.error.retryable = true;\n          resp.request.service.config.credentials.expired = true;\n      }\n    });\n    add('EXPIRED_SIGNATURE', 'retry', function EXPIRED_SIGNATURE(resp) {\n      var err = resp.error;\n      if (!err) return;\n\n      if (typeof err.code === 'string' && typeof err.message === 'string') {\n        if (err.code.match(/Signature/) && err.message.match(/expired/)) {\n          resp.error.retryable = true;\n        }\n      }\n    });\n    add('CLOCK_SKEWED', 'retry', function CLOCK_SKEWED(resp) {\n      if (!resp.error) return;\n\n      if (this.service.clockSkewError(resp.error) && this.service.config.correctClockSkew) {\n        resp.error.retryable = true;\n      }\n    });\n    add('REDIRECT', 'retry', function REDIRECT(resp) {\n      if (resp.error && resp.error.statusCode >= 300 && resp.error.statusCode < 400 && resp.httpResponse.headers['location']) {\n        this.httpRequest.endpoint = new AWS.Endpoint(resp.httpResponse.headers['location']);\n        this.httpRequest.headers['Host'] = this.httpRequest.endpoint.host;\n        resp.error.redirect = true;\n        resp.error.retryable = true;\n      }\n    });\n    add('RETRY_CHECK', 'retry', function RETRY_CHECK(resp) {\n      if (resp.error) {\n        if (resp.error.redirect && resp.redirectCount < resp.maxRedirects) {\n          resp.error.retryDelay = 0;\n        } else if (resp.retryCount < resp.maxRetries) {\n          resp.error.retryDelay = this.service.retryDelays(resp.retryCount) || 0;\n        }\n      }\n    });\n    addAsync('RESET_RETRY_STATE', 'afterRetry', function RESET_RETRY_STATE(resp, done) {\n      var delay,\n          willRetry = false;\n\n      if (resp.error) {\n        delay = resp.error.retryDelay || 0;\n\n        if (resp.error.retryable && resp.retryCount < resp.maxRetries) {\n          resp.retryCount++;\n          willRetry = true;\n        } else if (resp.error.redirect && resp.redirectCount < resp.maxRedirects) {\n          resp.redirectCount++;\n          willRetry = true;\n        }\n      }\n\n      if (willRetry) {\n        resp.error = null;\n        setTimeout(done, delay);\n      } else {\n        done();\n      }\n    });\n  }),\n  CorePost: new SequentialExecutor().addNamedListeners(function (add) {\n    add('EXTRACT_REQUEST_ID', 'extractData', AWS.util.extractRequestId);\n    add('EXTRACT_REQUEST_ID', 'extractError', AWS.util.extractRequestId);\n    add('ENOTFOUND_ERROR', 'httpError', function ENOTFOUND_ERROR(err) {\n      if (err.code === 'NetworkingError' && err.errno === 'ENOTFOUND') {\n        var message = 'Inaccessible host: `' + err.hostname + '\\'. This service may not be available in the `' + err.region + '\\' region.';\n        this.response.error = AWS.util.error(new Error(message), {\n          code: 'UnknownEndpoint',\n          region: err.region,\n          hostname: err.hostname,\n          retryable: true,\n          originalError: err\n        });\n      }\n    });\n  }),\n  Logger: new SequentialExecutor().addNamedListeners(function (add) {\n    add('LOG_REQUEST', 'complete', function LOG_REQUEST(resp) {\n      var req = resp.request;\n      var logger = req.service.config.logger;\n      if (!logger) return;\n\n      function filterSensitiveLog(inputShape, shape) {\n        if (!shape) {\n          return shape;\n        }\n\n        switch (inputShape.type) {\n          case 'structure':\n            var struct = {};\n            AWS.util.each(shape, function (subShapeName, subShape) {\n              if (Object.prototype.hasOwnProperty.call(inputShape.members, subShapeName)) {\n                struct[subShapeName] = filterSensitiveLog(inputShape.members[subShapeName], subShape);\n              } else {\n                struct[subShapeName] = subShape;\n              }\n            });\n            return struct;\n\n          case 'list':\n            var list = [];\n            AWS.util.arrayEach(shape, function (subShape, index) {\n              list.push(filterSensitiveLog(inputShape.member, subShape));\n            });\n            return list;\n\n          case 'map':\n            var map = {};\n            AWS.util.each(shape, function (key, value) {\n              map[key] = filterSensitiveLog(inputShape.value, value);\n            });\n            return map;\n\n          default:\n            if (inputShape.isSensitive) {\n              return '***SensitiveInformation***';\n            } else {\n              return shape;\n            }\n\n        }\n      }\n\n      function buildMessage() {\n        var time = resp.request.service.getSkewCorrectedDate().getTime();\n        var delta = (time - req.startTime.getTime()) / 1000;\n        var ansi = logger.isTTY ? true : false;\n        var status = resp.httpResponse.statusCode;\n        var censoredParams = req.params;\n\n        if (req.service.api.operations && req.service.api.operations[req.operation] && req.service.api.operations[req.operation].input) {\n          var inputShape = req.service.api.operations[req.operation].input;\n          censoredParams = filterSensitiveLog(inputShape, req.params);\n        }\n\n        var params = require('util').inspect(censoredParams, true, null);\n\n        var message = '';\n        if (ansi) message += '\\x1B[33m';\n        message += '[AWS ' + req.service.serviceIdentifier + ' ' + status;\n        message += ' ' + delta.toString() + 's ' + resp.retryCount + ' retries]';\n        if (ansi) message += '\\x1B[0;1m';\n        message += ' ' + AWS.util.string.lowerFirst(req.operation);\n        message += '(' + params + ')';\n        if (ansi) message += '\\x1B[0m';\n        return message;\n      }\n\n      var line = buildMessage();\n\n      if (typeof logger.log === 'function') {\n        logger.log(line);\n      } else if (typeof logger.write === 'function') {\n        logger.write(line + '\\n');\n      }\n    });\n  }),\n  Json: new SequentialExecutor().addNamedListeners(function (add) {\n    var svc = require('./protocol/json');\n\n    add('BUILD', 'build', svc.buildRequest);\n    add('EXTRACT_DATA', 'extractData', svc.extractData);\n    add('EXTRACT_ERROR', 'extractError', svc.extractError);\n  }),\n  Rest: new SequentialExecutor().addNamedListeners(function (add) {\n    var svc = require('./protocol/rest');\n\n    add('BUILD', 'build', svc.buildRequest);\n    add('EXTRACT_DATA', 'extractData', svc.extractData);\n    add('EXTRACT_ERROR', 'extractError', svc.extractError);\n  }),\n  RestJson: new SequentialExecutor().addNamedListeners(function (add) {\n    var svc = require('./protocol/rest_json');\n\n    add('BUILD', 'build', svc.buildRequest);\n    add('EXTRACT_DATA', 'extractData', svc.extractData);\n    add('EXTRACT_ERROR', 'extractError', svc.extractError);\n  }),\n  RestXml: new SequentialExecutor().addNamedListeners(function (add) {\n    var svc = require('./protocol/rest_xml');\n\n    add('BUILD', 'build', svc.buildRequest);\n    add('EXTRACT_DATA', 'extractData', svc.extractData);\n    add('EXTRACT_ERROR', 'extractError', svc.extractError);\n  }),\n  Query: new SequentialExecutor().addNamedListeners(function (add) {\n    var svc = require('./protocol/query');\n\n    add('BUILD', 'build', svc.buildRequest);\n    add('EXTRACT_DATA', 'extractData', svc.extractData);\n    add('EXTRACT_ERROR', 'extractError', svc.extractError);\n  })\n};","/**\n * Escapes characters that can not be in an XML attribute.\n */\nfunction escapeAttribute(value) {\n  return value.replace(/&/g, '&amp;').replace(/'/g, '&apos;').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/\"/g, '&quot;');\n}\n/**\n * @api private\n */\n\n\nmodule.exports = {\n  escapeAttribute: escapeAttribute\n};","'use strict';\n\nexports.decode = exports.parse = require('./decode');\nexports.encode = exports.stringify = require('./encode');","var util = require('../util');\n\nvar property = util.property;\n\nfunction ResourceWaiter(name, waiter, options) {\n  options = options || {};\n  property(this, 'name', name);\n  property(this, 'api', options.api, false);\n\n  if (waiter.operation) {\n    property(this, 'operation', util.string.lowerFirst(waiter.operation));\n  }\n\n  var self = this;\n  var keys = ['type', 'description', 'delay', 'maxAttempts', 'acceptors'];\n  keys.forEach(function (key) {\n    var value = waiter[key];\n\n    if (value) {\n      property(self, key, value);\n    }\n  });\n}\n/**\n * @api private\n */\n\n\nmodule.exports = ResourceWaiter;","var util = require('./util');\n\nvar regionConfig = require('./region_config_data.json');\n\nfunction generateRegionPrefix(region) {\n  if (!region) return null;\n  var parts = region.split('-');\n  if (parts.length < 3) return null;\n  return parts.slice(0, parts.length - 2).join('-') + '-*';\n}\n\nfunction derivedKeys(service) {\n  var region = service.config.region;\n  var regionPrefix = generateRegionPrefix(region);\n  var endpointPrefix = service.api.endpointPrefix;\n  return [[region, endpointPrefix], [regionPrefix, endpointPrefix], [region, '*'], [regionPrefix, '*'], ['*', endpointPrefix], ['*', '*']].map(function (item) {\n    return item[0] && item[1] ? item.join('/') : null;\n  });\n}\n\nfunction applyConfig(service, config) {\n  util.each(config, function (key, value) {\n    if (key === 'globalEndpoint') return;\n\n    if (service.config[key] === undefined || service.config[key] === null) {\n      service.config[key] = value;\n    }\n  });\n}\n\nfunction configureEndpoint(service) {\n  var keys = derivedKeys(service);\n\n  for (var i = 0; i < keys.length; i++) {\n    var key = keys[i];\n    if (!key) continue;\n\n    if (Object.prototype.hasOwnProperty.call(regionConfig.rules, key)) {\n      var config = regionConfig.rules[key];\n\n      if (typeof config === 'string') {\n        config = regionConfig.patterns[config];\n      } // set dualstack endpoint\n\n\n      if (service.config.useDualstack && util.isDualstackAvailable(service)) {\n        config = util.copy(config);\n        config.endpoint = '{service}.dualstack.{region}.amazonaws.com';\n      } // set global endpoint\n\n\n      service.isGlobalEndpoint = !!config.globalEndpoint; // signature version\n\n      if (!config.signatureVersion) config.signatureVersion = 'v4'; // merge config\n\n      applyConfig(service, config);\n      return;\n    }\n  }\n}\n/**\n * @api private\n */\n\n\nmodule.exports = configureEndpoint;","/*!\n * The buffer module from node.js, for the browser.\n *\n * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>\n * @license  MIT\n */\n\n/* eslint-disable no-proto */\n'use strict';\n\nvar base64 = require('base64-js');\n\nvar ieee754 = require('ieee754');\n\nvar isArray = require('isarray');\n\nexports.Buffer = Buffer;\nexports.SlowBuffer = SlowBuffer;\nexports.INSPECT_MAX_BYTES = 50;\n/**\n * If `Buffer.TYPED_ARRAY_SUPPORT`:\n *   === true    Use Uint8Array implementation (fastest)\n *   === false   Use Object implementation (most compatible, even IE6)\n *\n * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,\n * Opera 11.6+, iOS 4.2+.\n *\n * Due to various browser bugs, sometimes the Object implementation will be used even\n * when the browser supports typed arrays.\n *\n * Note:\n *\n *   - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances,\n *     See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438.\n *\n *   - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function.\n *\n *   - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of\n *     incorrect length in some situations.\n\n * We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they\n * get the Object implementation, which is slower but behaves correctly.\n */\n\nBuffer.TYPED_ARRAY_SUPPORT = global.TYPED_ARRAY_SUPPORT !== undefined ? global.TYPED_ARRAY_SUPPORT : typedArraySupport();\n/*\n * Export kMaxLength after typed array support is determined.\n */\n\nexports.kMaxLength = kMaxLength();\n\nfunction typedArraySupport() {\n  try {\n    var arr = new Uint8Array(1);\n    arr.__proto__ = {\n      __proto__: Uint8Array.prototype,\n      foo: function foo() {\n        return 42;\n      }\n    };\n    return arr.foo() === 42 && // typed array instances can be augmented\n    typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray`\n    arr.subarray(1, 1).byteLength === 0; // ie10 has broken `subarray`\n  } catch (e) {\n    return false;\n  }\n}\n\nfunction kMaxLength() {\n  return Buffer.TYPED_ARRAY_SUPPORT ? 0x7fffffff : 0x3fffffff;\n}\n\nfunction createBuffer(that, length) {\n  if (kMaxLength() < length) {\n    throw new RangeError('Invalid typed array length');\n  }\n\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    // Return an augmented `Uint8Array` instance, for best performance\n    that = new Uint8Array(length);\n    that.__proto__ = Buffer.prototype;\n  } else {\n    // Fallback: Return an object instance of the Buffer class\n    if (that === null) {\n      that = new Buffer(length);\n    }\n\n    that.length = length;\n  }\n\n  return that;\n}\n/**\n * The Buffer constructor returns instances of `Uint8Array` that have their\n * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of\n * `Uint8Array`, so the returned instances will have all the node `Buffer` methods\n * and the `Uint8Array` methods. Square bracket notation works as expected -- it\n * returns a single octet.\n *\n * The `Uint8Array` prototype remains unmodified.\n */\n\n\nfunction Buffer(arg, encodingOrOffset, length) {\n  if (!Buffer.TYPED_ARRAY_SUPPORT && !(this instanceof Buffer)) {\n    return new Buffer(arg, encodingOrOffset, length);\n  } // Common case.\n\n\n  if (typeof arg === 'number') {\n    if (typeof encodingOrOffset === 'string') {\n      throw new Error('If encoding is specified then the first argument must be a string');\n    }\n\n    return allocUnsafe(this, arg);\n  }\n\n  return from(this, arg, encodingOrOffset, length);\n}\n\nBuffer.poolSize = 8192; // not used by this implementation\n// TODO: Legacy, not needed anymore. Remove in next major version.\n\nBuffer._augment = function (arr) {\n  arr.__proto__ = Buffer.prototype;\n  return arr;\n};\n\nfunction from(that, value, encodingOrOffset, length) {\n  if (typeof value === 'number') {\n    throw new TypeError('\"value\" argument must not be a number');\n  }\n\n  if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {\n    return fromArrayBuffer(that, value, encodingOrOffset, length);\n  }\n\n  if (typeof value === 'string') {\n    return fromString(that, value, encodingOrOffset);\n  }\n\n  return fromObject(that, value);\n}\n/**\n * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError\n * if value is a number.\n * Buffer.from(str[, encoding])\n * Buffer.from(array)\n * Buffer.from(buffer)\n * Buffer.from(arrayBuffer[, byteOffset[, length]])\n **/\n\n\nBuffer.from = function (value, encodingOrOffset, length) {\n  return from(null, value, encodingOrOffset, length);\n};\n\nif (Buffer.TYPED_ARRAY_SUPPORT) {\n  Buffer.prototype.__proto__ = Uint8Array.prototype;\n  Buffer.__proto__ = Uint8Array;\n\n  if (typeof Symbol !== 'undefined' && Symbol.species && Buffer[Symbol.species] === Buffer) {\n    // Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97\n    Object.defineProperty(Buffer, Symbol.species, {\n      value: null,\n      configurable: true\n    });\n  }\n}\n\nfunction assertSize(size) {\n  if (typeof size !== 'number') {\n    throw new TypeError('\"size\" argument must be a number');\n  } else if (size < 0) {\n    throw new RangeError('\"size\" argument must not be negative');\n  }\n}\n\nfunction alloc(that, size, fill, encoding) {\n  assertSize(size);\n\n  if (size <= 0) {\n    return createBuffer(that, size);\n  }\n\n  if (fill !== undefined) {\n    // Only pay attention to encoding if it's a string. This\n    // prevents accidentally sending in a number that would\n    // be interpretted as a start offset.\n    return typeof encoding === 'string' ? createBuffer(that, size).fill(fill, encoding) : createBuffer(that, size).fill(fill);\n  }\n\n  return createBuffer(that, size);\n}\n/**\n * Creates a new filled Buffer instance.\n * alloc(size[, fill[, encoding]])\n **/\n\n\nBuffer.alloc = function (size, fill, encoding) {\n  return alloc(null, size, fill, encoding);\n};\n\nfunction allocUnsafe(that, size) {\n  assertSize(size);\n  that = createBuffer(that, size < 0 ? 0 : checked(size) | 0);\n\n  if (!Buffer.TYPED_ARRAY_SUPPORT) {\n    for (var i = 0; i < size; ++i) {\n      that[i] = 0;\n    }\n  }\n\n  return that;\n}\n/**\n * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.\n * */\n\n\nBuffer.allocUnsafe = function (size) {\n  return allocUnsafe(null, size);\n};\n/**\n * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.\n */\n\n\nBuffer.allocUnsafeSlow = function (size) {\n  return allocUnsafe(null, size);\n};\n\nfunction fromString(that, string, encoding) {\n  if (typeof encoding !== 'string' || encoding === '') {\n    encoding = 'utf8';\n  }\n\n  if (!Buffer.isEncoding(encoding)) {\n    throw new TypeError('\"encoding\" must be a valid string encoding');\n  }\n\n  var length = byteLength(string, encoding) | 0;\n  that = createBuffer(that, length);\n  var actual = that.write(string, encoding);\n\n  if (actual !== length) {\n    // Writing a hex string, for example, that contains invalid characters will\n    // cause everything after the first invalid character to be ignored. (e.g.\n    // 'abxxcd' will be treated as 'ab')\n    that = that.slice(0, actual);\n  }\n\n  return that;\n}\n\nfunction fromArrayLike(that, array) {\n  var length = array.length < 0 ? 0 : checked(array.length) | 0;\n  that = createBuffer(that, length);\n\n  for (var i = 0; i < length; i += 1) {\n    that[i] = array[i] & 255;\n  }\n\n  return that;\n}\n\nfunction fromArrayBuffer(that, array, byteOffset, length) {\n  array.byteLength; // this throws if `array` is not a valid ArrayBuffer\n\n  if (byteOffset < 0 || array.byteLength < byteOffset) {\n    throw new RangeError('\\'offset\\' is out of bounds');\n  }\n\n  if (array.byteLength < byteOffset + (length || 0)) {\n    throw new RangeError('\\'length\\' is out of bounds');\n  }\n\n  if (byteOffset === undefined && length === undefined) {\n    array = new Uint8Array(array);\n  } else if (length === undefined) {\n    array = new Uint8Array(array, byteOffset);\n  } else {\n    array = new Uint8Array(array, byteOffset, length);\n  }\n\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    // Return an augmented `Uint8Array` instance, for best performance\n    that = array;\n    that.__proto__ = Buffer.prototype;\n  } else {\n    // Fallback: Return an object instance of the Buffer class\n    that = fromArrayLike(that, array);\n  }\n\n  return that;\n}\n\nfunction fromObject(that, obj) {\n  if (Buffer.isBuffer(obj)) {\n    var len = checked(obj.length) | 0;\n    that = createBuffer(that, len);\n\n    if (that.length === 0) {\n      return that;\n    }\n\n    obj.copy(that, 0, 0, len);\n    return that;\n  }\n\n  if (obj) {\n    if (typeof ArrayBuffer !== 'undefined' && obj.buffer instanceof ArrayBuffer || 'length' in obj) {\n      if (typeof obj.length !== 'number' || isnan(obj.length)) {\n        return createBuffer(that, 0);\n      }\n\n      return fromArrayLike(that, obj);\n    }\n\n    if (obj.type === 'Buffer' && isArray(obj.data)) {\n      return fromArrayLike(that, obj.data);\n    }\n  }\n\n  throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.');\n}\n\nfunction checked(length) {\n  // Note: cannot use `length < kMaxLength()` here because that fails when\n  // length is NaN (which is otherwise coerced to zero.)\n  if (length >= kMaxLength()) {\n    throw new RangeError('Attempt to allocate Buffer larger than maximum ' + 'size: 0x' + kMaxLength().toString(16) + ' bytes');\n  }\n\n  return length | 0;\n}\n\nfunction SlowBuffer(length) {\n  if (+length != length) {\n    // eslint-disable-line eqeqeq\n    length = 0;\n  }\n\n  return Buffer.alloc(+length);\n}\n\nBuffer.isBuffer = function isBuffer(b) {\n  return !!(b != null && b._isBuffer);\n};\n\nBuffer.compare = function compare(a, b) {\n  if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {\n    throw new TypeError('Arguments must be Buffers');\n  }\n\n  if (a === b) return 0;\n  var x = a.length;\n  var y = b.length;\n\n  for (var i = 0, len = Math.min(x, y); i < len; ++i) {\n    if (a[i] !== b[i]) {\n      x = a[i];\n      y = b[i];\n      break;\n    }\n  }\n\n  if (x < y) return -1;\n  if (y < x) return 1;\n  return 0;\n};\n\nBuffer.isEncoding = function isEncoding(encoding) {\n  switch (String(encoding).toLowerCase()) {\n    case 'hex':\n    case 'utf8':\n    case 'utf-8':\n    case 'ascii':\n    case 'latin1':\n    case 'binary':\n    case 'base64':\n    case 'ucs2':\n    case 'ucs-2':\n    case 'utf16le':\n    case 'utf-16le':\n      return true;\n\n    default:\n      return false;\n  }\n};\n\nBuffer.concat = function concat(list, length) {\n  if (!isArray(list)) {\n    throw new TypeError('\"list\" argument must be an Array of Buffers');\n  }\n\n  if (list.length === 0) {\n    return Buffer.alloc(0);\n  }\n\n  var i;\n\n  if (length === undefined) {\n    length = 0;\n\n    for (i = 0; i < list.length; ++i) {\n      length += list[i].length;\n    }\n  }\n\n  var buffer = Buffer.allocUnsafe(length);\n  var pos = 0;\n\n  for (i = 0; i < list.length; ++i) {\n    var buf = list[i];\n\n    if (!Buffer.isBuffer(buf)) {\n      throw new TypeError('\"list\" argument must be an Array of Buffers');\n    }\n\n    buf.copy(buffer, pos);\n    pos += buf.length;\n  }\n\n  return buffer;\n};\n\nfunction byteLength(string, encoding) {\n  if (Buffer.isBuffer(string)) {\n    return string.length;\n  }\n\n  if (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'function' && (ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) {\n    return string.byteLength;\n  }\n\n  if (typeof string !== 'string') {\n    string = '' + string;\n  }\n\n  var len = string.length;\n  if (len === 0) return 0; // Use a for loop to avoid recursion\n\n  var loweredCase = false;\n\n  for (;;) {\n    switch (encoding) {\n      case 'ascii':\n      case 'latin1':\n      case 'binary':\n        return len;\n\n      case 'utf8':\n      case 'utf-8':\n      case undefined:\n        return utf8ToBytes(string).length;\n\n      case 'ucs2':\n      case 'ucs-2':\n      case 'utf16le':\n      case 'utf-16le':\n        return len * 2;\n\n      case 'hex':\n        return len >>> 1;\n\n      case 'base64':\n        return base64ToBytes(string).length;\n\n      default:\n        if (loweredCase) return utf8ToBytes(string).length; // assume utf8\n\n        encoding = ('' + encoding).toLowerCase();\n        loweredCase = true;\n    }\n  }\n}\n\nBuffer.byteLength = byteLength;\n\nfunction slowToString(encoding, start, end) {\n  var loweredCase = false; // No need to verify that \"this.length <= MAX_UINT32\" since it's a read-only\n  // property of a typed array.\n  // This behaves neither like String nor Uint8Array in that we set start/end\n  // to their upper/lower bounds if the value passed is out of range.\n  // undefined is handled specially as per ECMA-262 6th Edition,\n  // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.\n\n  if (start === undefined || start < 0) {\n    start = 0;\n  } // Return early if start > this.length. Done here to prevent potential uint32\n  // coercion fail below.\n\n\n  if (start > this.length) {\n    return '';\n  }\n\n  if (end === undefined || end > this.length) {\n    end = this.length;\n  }\n\n  if (end <= 0) {\n    return '';\n  } // Force coersion to uint32. This will also coerce falsey/NaN values to 0.\n\n\n  end >>>= 0;\n  start >>>= 0;\n\n  if (end <= start) {\n    return '';\n  }\n\n  if (!encoding) encoding = 'utf8';\n\n  while (true) {\n    switch (encoding) {\n      case 'hex':\n        return hexSlice(this, start, end);\n\n      case 'utf8':\n      case 'utf-8':\n        return utf8Slice(this, start, end);\n\n      case 'ascii':\n        return asciiSlice(this, start, end);\n\n      case 'latin1':\n      case 'binary':\n        return latin1Slice(this, start, end);\n\n      case 'base64':\n        return base64Slice(this, start, end);\n\n      case 'ucs2':\n      case 'ucs-2':\n      case 'utf16le':\n      case 'utf-16le':\n        return utf16leSlice(this, start, end);\n\n      default:\n        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding);\n        encoding = (encoding + '').toLowerCase();\n        loweredCase = true;\n    }\n  }\n} // The property is used by `Buffer.isBuffer` and `is-buffer` (in Safari 5-7) to detect\n// Buffer instances.\n\n\nBuffer.prototype._isBuffer = true;\n\nfunction swap(b, n, m) {\n  var i = b[n];\n  b[n] = b[m];\n  b[m] = i;\n}\n\nBuffer.prototype.swap16 = function swap16() {\n  var len = this.length;\n\n  if (len % 2 !== 0) {\n    throw new RangeError('Buffer size must be a multiple of 16-bits');\n  }\n\n  for (var i = 0; i < len; i += 2) {\n    swap(this, i, i + 1);\n  }\n\n  return this;\n};\n\nBuffer.prototype.swap32 = function swap32() {\n  var len = this.length;\n\n  if (len % 4 !== 0) {\n    throw new RangeError('Buffer size must be a multiple of 32-bits');\n  }\n\n  for (var i = 0; i < len; i += 4) {\n    swap(this, i, i + 3);\n    swap(this, i + 1, i + 2);\n  }\n\n  return this;\n};\n\nBuffer.prototype.swap64 = function swap64() {\n  var len = this.length;\n\n  if (len % 8 !== 0) {\n    throw new RangeError('Buffer size must be a multiple of 64-bits');\n  }\n\n  for (var i = 0; i < len; i += 8) {\n    swap(this, i, i + 7);\n    swap(this, i + 1, i + 6);\n    swap(this, i + 2, i + 5);\n    swap(this, i + 3, i + 4);\n  }\n\n  return this;\n};\n\nBuffer.prototype.toString = function toString() {\n  var length = this.length | 0;\n  if (length === 0) return '';\n  if (arguments.length === 0) return utf8Slice(this, 0, length);\n  return slowToString.apply(this, arguments);\n};\n\nBuffer.prototype.equals = function equals(b) {\n  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer');\n  if (this === b) return true;\n  return Buffer.compare(this, b) === 0;\n};\n\nBuffer.prototype.inspect = function inspect() {\n  var str = '';\n  var max = exports.INSPECT_MAX_BYTES;\n\n  if (this.length > 0) {\n    str = this.toString('hex', 0, max).match(/.{2}/g).join(' ');\n    if (this.length > max) str += ' ... ';\n  }\n\n  return '<Buffer ' + str + '>';\n};\n\nBuffer.prototype.compare = function compare(target, start, end, thisStart, thisEnd) {\n  if (!Buffer.isBuffer(target)) {\n    throw new TypeError('Argument must be a Buffer');\n  }\n\n  if (start === undefined) {\n    start = 0;\n  }\n\n  if (end === undefined) {\n    end = target ? target.length : 0;\n  }\n\n  if (thisStart === undefined) {\n    thisStart = 0;\n  }\n\n  if (thisEnd === undefined) {\n    thisEnd = this.length;\n  }\n\n  if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {\n    throw new RangeError('out of range index');\n  }\n\n  if (thisStart >= thisEnd && start >= end) {\n    return 0;\n  }\n\n  if (thisStart >= thisEnd) {\n    return -1;\n  }\n\n  if (start >= end) {\n    return 1;\n  }\n\n  start >>>= 0;\n  end >>>= 0;\n  thisStart >>>= 0;\n  thisEnd >>>= 0;\n  if (this === target) return 0;\n  var x = thisEnd - thisStart;\n  var y = end - start;\n  var len = Math.min(x, y);\n  var thisCopy = this.slice(thisStart, thisEnd);\n  var targetCopy = target.slice(start, end);\n\n  for (var i = 0; i < len; ++i) {\n    if (thisCopy[i] !== targetCopy[i]) {\n      x = thisCopy[i];\n      y = targetCopy[i];\n      break;\n    }\n  }\n\n  if (x < y) return -1;\n  if (y < x) return 1;\n  return 0;\n}; // Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,\n// OR the last index of `val` in `buffer` at offset <= `byteOffset`.\n//\n// Arguments:\n// - buffer - a Buffer to search\n// - val - a string, Buffer, or number\n// - byteOffset - an index into `buffer`; will be clamped to an int32\n// - encoding - an optional encoding, relevant is val is a string\n// - dir - true for indexOf, false for lastIndexOf\n\n\nfunction bidirectionalIndexOf(buffer, val, byteOffset, encoding, dir) {\n  // Empty buffer means no match\n  if (buffer.length === 0) return -1; // Normalize byteOffset\n\n  if (typeof byteOffset === 'string') {\n    encoding = byteOffset;\n    byteOffset = 0;\n  } else if (byteOffset > 0x7fffffff) {\n    byteOffset = 0x7fffffff;\n  } else if (byteOffset < -0x80000000) {\n    byteOffset = -0x80000000;\n  }\n\n  byteOffset = +byteOffset; // Coerce to Number.\n\n  if (isNaN(byteOffset)) {\n    // byteOffset: it it's undefined, null, NaN, \"foo\", etc, search whole buffer\n    byteOffset = dir ? 0 : buffer.length - 1;\n  } // Normalize byteOffset: negative offsets start from the end of the buffer\n\n\n  if (byteOffset < 0) byteOffset = buffer.length + byteOffset;\n\n  if (byteOffset >= buffer.length) {\n    if (dir) return -1;else byteOffset = buffer.length - 1;\n  } else if (byteOffset < 0) {\n    if (dir) byteOffset = 0;else return -1;\n  } // Normalize val\n\n\n  if (typeof val === 'string') {\n    val = Buffer.from(val, encoding);\n  } // Finally, search either indexOf (if dir is true) or lastIndexOf\n\n\n  if (Buffer.isBuffer(val)) {\n    // Special case: looking for empty string/buffer always fails\n    if (val.length === 0) {\n      return -1;\n    }\n\n    return arrayIndexOf(buffer, val, byteOffset, encoding, dir);\n  } else if (typeof val === 'number') {\n    val = val & 0xFF; // Search for a byte value [0-255]\n\n    if (Buffer.TYPED_ARRAY_SUPPORT && typeof Uint8Array.prototype.indexOf === 'function') {\n      if (dir) {\n        return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset);\n      } else {\n        return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset);\n      }\n    }\n\n    return arrayIndexOf(buffer, [val], byteOffset, encoding, dir);\n  }\n\n  throw new TypeError('val must be string, number or Buffer');\n}\n\nfunction arrayIndexOf(arr, val, byteOffset, encoding, dir) {\n  var indexSize = 1;\n  var arrLength = arr.length;\n  var valLength = val.length;\n\n  if (encoding !== undefined) {\n    encoding = String(encoding).toLowerCase();\n\n    if (encoding === 'ucs2' || encoding === 'ucs-2' || encoding === 'utf16le' || encoding === 'utf-16le') {\n      if (arr.length < 2 || val.length < 2) {\n        return -1;\n      }\n\n      indexSize = 2;\n      arrLength /= 2;\n      valLength /= 2;\n      byteOffset /= 2;\n    }\n  }\n\n  function read(buf, i) {\n    if (indexSize === 1) {\n      return buf[i];\n    } else {\n      return buf.readUInt16BE(i * indexSize);\n    }\n  }\n\n  var i;\n\n  if (dir) {\n    var foundIndex = -1;\n\n    for (i = byteOffset; i < arrLength; i++) {\n      if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {\n        if (foundIndex === -1) foundIndex = i;\n        if (i - foundIndex + 1 === valLength) return foundIndex * indexSize;\n      } else {\n        if (foundIndex !== -1) i -= i - foundIndex;\n        foundIndex = -1;\n      }\n    }\n  } else {\n    if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength;\n\n    for (i = byteOffset; i >= 0; i--) {\n      var found = true;\n\n      for (var j = 0; j < valLength; j++) {\n        if (read(arr, i + j) !== read(val, j)) {\n          found = false;\n          break;\n        }\n      }\n\n      if (found) return i;\n    }\n  }\n\n  return -1;\n}\n\nBuffer.prototype.includes = function includes(val, byteOffset, encoding) {\n  return this.indexOf(val, byteOffset, encoding) !== -1;\n};\n\nBuffer.prototype.indexOf = function indexOf(val, byteOffset, encoding) {\n  return bidirectionalIndexOf(this, val, byteOffset, encoding, true);\n};\n\nBuffer.prototype.lastIndexOf = function lastIndexOf(val, byteOffset, encoding) {\n  return bidirectionalIndexOf(this, val, byteOffset, encoding, false);\n};\n\nfunction hexWrite(buf, string, offset, length) {\n  offset = Number(offset) || 0;\n  var remaining = buf.length - offset;\n\n  if (!length) {\n    length = remaining;\n  } else {\n    length = Number(length);\n\n    if (length > remaining) {\n      length = remaining;\n    }\n  } // must be an even number of digits\n\n\n  var strLen = string.length;\n  if (strLen % 2 !== 0) throw new TypeError('Invalid hex string');\n\n  if (length > strLen / 2) {\n    length = strLen / 2;\n  }\n\n  for (var i = 0; i < length; ++i) {\n    var parsed = parseInt(string.substr(i * 2, 2), 16);\n    if (isNaN(parsed)) return i;\n    buf[offset + i] = parsed;\n  }\n\n  return i;\n}\n\nfunction utf8Write(buf, string, offset, length) {\n  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length);\n}\n\nfunction asciiWrite(buf, string, offset, length) {\n  return blitBuffer(asciiToBytes(string), buf, offset, length);\n}\n\nfunction latin1Write(buf, string, offset, length) {\n  return asciiWrite(buf, string, offset, length);\n}\n\nfunction base64Write(buf, string, offset, length) {\n  return blitBuffer(base64ToBytes(string), buf, offset, length);\n}\n\nfunction ucs2Write(buf, string, offset, length) {\n  return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length);\n}\n\nBuffer.prototype.write = function write(string, offset, length, encoding) {\n  // Buffer#write(string)\n  if (offset === undefined) {\n    encoding = 'utf8';\n    length = this.length;\n    offset = 0; // Buffer#write(string, encoding)\n  } else if (length === undefined && typeof offset === 'string') {\n    encoding = offset;\n    length = this.length;\n    offset = 0; // Buffer#write(string, offset[, length][, encoding])\n  } else if (isFinite(offset)) {\n    offset = offset | 0;\n\n    if (isFinite(length)) {\n      length = length | 0;\n      if (encoding === undefined) encoding = 'utf8';\n    } else {\n      encoding = length;\n      length = undefined;\n    } // legacy write(string, encoding, offset, length) - remove in v0.13\n\n  } else {\n    throw new Error('Buffer.write(string, encoding, offset[, length]) is no longer supported');\n  }\n\n  var remaining = this.length - offset;\n  if (length === undefined || length > remaining) length = remaining;\n\n  if (string.length > 0 && (length < 0 || offset < 0) || offset > this.length) {\n    throw new RangeError('Attempt to write outside buffer bounds');\n  }\n\n  if (!encoding) encoding = 'utf8';\n  var loweredCase = false;\n\n  for (;;) {\n    switch (encoding) {\n      case 'hex':\n        return hexWrite(this, string, offset, length);\n\n      case 'utf8':\n      case 'utf-8':\n        return utf8Write(this, string, offset, length);\n\n      case 'ascii':\n        return asciiWrite(this, string, offset, length);\n\n      case 'latin1':\n      case 'binary':\n        return latin1Write(this, string, offset, length);\n\n      case 'base64':\n        // Warning: maxLength not taken into account in base64Write\n        return base64Write(this, string, offset, length);\n\n      case 'ucs2':\n      case 'ucs-2':\n      case 'utf16le':\n      case 'utf-16le':\n        return ucs2Write(this, string, offset, length);\n\n      default:\n        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding);\n        encoding = ('' + encoding).toLowerCase();\n        loweredCase = true;\n    }\n  }\n};\n\nBuffer.prototype.toJSON = function toJSON() {\n  return {\n    type: 'Buffer',\n    data: Array.prototype.slice.call(this._arr || this, 0)\n  };\n};\n\nfunction base64Slice(buf, start, end) {\n  if (start === 0 && end === buf.length) {\n    return base64.fromByteArray(buf);\n  } else {\n    return base64.fromByteArray(buf.slice(start, end));\n  }\n}\n\nfunction utf8Slice(buf, start, end) {\n  end = Math.min(buf.length, end);\n  var res = [];\n  var i = start;\n\n  while (i < end) {\n    var firstByte = buf[i];\n    var codePoint = null;\n    var bytesPerSequence = firstByte > 0xEF ? 4 : firstByte > 0xDF ? 3 : firstByte > 0xBF ? 2 : 1;\n\n    if (i + bytesPerSequence <= end) {\n      var secondByte, thirdByte, fourthByte, tempCodePoint;\n\n      switch (bytesPerSequence) {\n        case 1:\n          if (firstByte < 0x80) {\n            codePoint = firstByte;\n          }\n\n          break;\n\n        case 2:\n          secondByte = buf[i + 1];\n\n          if ((secondByte & 0xC0) === 0x80) {\n            tempCodePoint = (firstByte & 0x1F) << 0x6 | secondByte & 0x3F;\n\n            if (tempCodePoint > 0x7F) {\n              codePoint = tempCodePoint;\n            }\n          }\n\n          break;\n\n        case 3:\n          secondByte = buf[i + 1];\n          thirdByte = buf[i + 2];\n\n          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {\n            tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | thirdByte & 0x3F;\n\n            if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {\n              codePoint = tempCodePoint;\n            }\n          }\n\n          break;\n\n        case 4:\n          secondByte = buf[i + 1];\n          thirdByte = buf[i + 2];\n          fourthByte = buf[i + 3];\n\n          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {\n            tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | fourthByte & 0x3F;\n\n            if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {\n              codePoint = tempCodePoint;\n            }\n          }\n\n      }\n    }\n\n    if (codePoint === null) {\n      // we did not generate a valid codePoint so insert a\n      // replacement char (U+FFFD) and advance only 1 byte\n      codePoint = 0xFFFD;\n      bytesPerSequence = 1;\n    } else if (codePoint > 0xFFFF) {\n      // encode to utf16 (surrogate pair dance)\n      codePoint -= 0x10000;\n      res.push(codePoint >>> 10 & 0x3FF | 0xD800);\n      codePoint = 0xDC00 | codePoint & 0x3FF;\n    }\n\n    res.push(codePoint);\n    i += bytesPerSequence;\n  }\n\n  return decodeCodePointsArray(res);\n} // Based on http://stackoverflow.com/a/22747272/680742, the browser with\n// the lowest limit is Chrome, with 0x10000 args.\n// We go 1 magnitude less, for safety\n\n\nvar MAX_ARGUMENTS_LENGTH = 0x1000;\n\nfunction decodeCodePointsArray(codePoints) {\n  var len = codePoints.length;\n\n  if (len <= MAX_ARGUMENTS_LENGTH) {\n    return String.fromCharCode.apply(String, codePoints); // avoid extra slice()\n  } // Decode in chunks to avoid \"call stack size exceeded\".\n\n\n  var res = '';\n  var i = 0;\n\n  while (i < len) {\n    res += String.fromCharCode.apply(String, codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH));\n  }\n\n  return res;\n}\n\nfunction asciiSlice(buf, start, end) {\n  var ret = '';\n  end = Math.min(buf.length, end);\n\n  for (var i = start; i < end; ++i) {\n    ret += String.fromCharCode(buf[i] & 0x7F);\n  }\n\n  return ret;\n}\n\nfunction latin1Slice(buf, start, end) {\n  var ret = '';\n  end = Math.min(buf.length, end);\n\n  for (var i = start; i < end; ++i) {\n    ret += String.fromCharCode(buf[i]);\n  }\n\n  return ret;\n}\n\nfunction hexSlice(buf, start, end) {\n  var len = buf.length;\n  if (!start || start < 0) start = 0;\n  if (!end || end < 0 || end > len) end = len;\n  var out = '';\n\n  for (var i = start; i < end; ++i) {\n    out += toHex(buf[i]);\n  }\n\n  return out;\n}\n\nfunction utf16leSlice(buf, start, end) {\n  var bytes = buf.slice(start, end);\n  var res = '';\n\n  for (var i = 0; i < bytes.length; i += 2) {\n    res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256);\n  }\n\n  return res;\n}\n\nBuffer.prototype.slice = function slice(start, end) {\n  var len = this.length;\n  start = ~~start;\n  end = end === undefined ? len : ~~end;\n\n  if (start < 0) {\n    start += len;\n    if (start < 0) start = 0;\n  } else if (start > len) {\n    start = len;\n  }\n\n  if (end < 0) {\n    end += len;\n    if (end < 0) end = 0;\n  } else if (end > len) {\n    end = len;\n  }\n\n  if (end < start) end = start;\n  var newBuf;\n\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    newBuf = this.subarray(start, end);\n    newBuf.__proto__ = Buffer.prototype;\n  } else {\n    var sliceLen = end - start;\n    newBuf = new Buffer(sliceLen, undefined);\n\n    for (var i = 0; i < sliceLen; ++i) {\n      newBuf[i] = this[i + start];\n    }\n  }\n\n  return newBuf;\n};\n/*\n * Need to make sure that buffer isn't trying to write out of bounds.\n */\n\n\nfunction checkOffset(offset, ext, length) {\n  if (offset % 1 !== 0 || offset < 0) throw new RangeError('offset is not uint');\n  if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length');\n}\n\nBuffer.prototype.readUIntLE = function readUIntLE(offset, byteLength, noAssert) {\n  offset = offset | 0;\n  byteLength = byteLength | 0;\n  if (!noAssert) checkOffset(offset, byteLength, this.length);\n  var val = this[offset];\n  var mul = 1;\n  var i = 0;\n\n  while (++i < byteLength && (mul *= 0x100)) {\n    val += this[offset + i] * mul;\n  }\n\n  return val;\n};\n\nBuffer.prototype.readUIntBE = function readUIntBE(offset, byteLength, noAssert) {\n  offset = offset | 0;\n  byteLength = byteLength | 0;\n\n  if (!noAssert) {\n    checkOffset(offset, byteLength, this.length);\n  }\n\n  var val = this[offset + --byteLength];\n  var mul = 1;\n\n  while (byteLength > 0 && (mul *= 0x100)) {\n    val += this[offset + --byteLength] * mul;\n  }\n\n  return val;\n};\n\nBuffer.prototype.readUInt8 = function readUInt8(offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 1, this.length);\n  return this[offset];\n};\n\nBuffer.prototype.readUInt16LE = function readUInt16LE(offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 2, this.length);\n  return this[offset] | this[offset + 1] << 8;\n};\n\nBuffer.prototype.readUInt16BE = function readUInt16BE(offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 2, this.length);\n  return this[offset] << 8 | this[offset + 1];\n};\n\nBuffer.prototype.readUInt32LE = function readUInt32LE(offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 4, this.length);\n  return (this[offset] | this[offset + 1] << 8 | this[offset + 2] << 16) + this[offset + 3] * 0x1000000;\n};\n\nBuffer.prototype.readUInt32BE = function readUInt32BE(offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 4, this.length);\n  return this[offset] * 0x1000000 + (this[offset + 1] << 16 | this[offset + 2] << 8 | this[offset + 3]);\n};\n\nBuffer.prototype.readIntLE = function readIntLE(offset, byteLength, noAssert) {\n  offset = offset | 0;\n  byteLength = byteLength | 0;\n  if (!noAssert) checkOffset(offset, byteLength, this.length);\n  var val = this[offset];\n  var mul = 1;\n  var i = 0;\n\n  while (++i < byteLength && (mul *= 0x100)) {\n    val += this[offset + i] * mul;\n  }\n\n  mul *= 0x80;\n  if (val >= mul) val -= Math.pow(2, 8 * byteLength);\n  return val;\n};\n\nBuffer.prototype.readIntBE = function readIntBE(offset, byteLength, noAssert) {\n  offset = offset | 0;\n  byteLength = byteLength | 0;\n  if (!noAssert) checkOffset(offset, byteLength, this.length);\n  var i = byteLength;\n  var mul = 1;\n  var val = this[offset + --i];\n\n  while (i > 0 && (mul *= 0x100)) {\n    val += this[offset + --i] * mul;\n  }\n\n  mul *= 0x80;\n  if (val >= mul) val -= Math.pow(2, 8 * byteLength);\n  return val;\n};\n\nBuffer.prototype.readInt8 = function readInt8(offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 1, this.length);\n  if (!(this[offset] & 0x80)) return this[offset];\n  return (0xff - this[offset] + 1) * -1;\n};\n\nBuffer.prototype.readInt16LE = function readInt16LE(offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 2, this.length);\n  var val = this[offset] | this[offset + 1] << 8;\n  return val & 0x8000 ? val | 0xFFFF0000 : val;\n};\n\nBuffer.prototype.readInt16BE = function readInt16BE(offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 2, this.length);\n  var val = this[offset + 1] | this[offset] << 8;\n  return val & 0x8000 ? val | 0xFFFF0000 : val;\n};\n\nBuffer.prototype.readInt32LE = function readInt32LE(offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 4, this.length);\n  return this[offset] | this[offset + 1] << 8 | this[offset + 2] << 16 | this[offset + 3] << 24;\n};\n\nBuffer.prototype.readInt32BE = function readInt32BE(offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 4, this.length);\n  return this[offset] << 24 | this[offset + 1] << 16 | this[offset + 2] << 8 | this[offset + 3];\n};\n\nBuffer.prototype.readFloatLE = function readFloatLE(offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 4, this.length);\n  return ieee754.read(this, offset, true, 23, 4);\n};\n\nBuffer.prototype.readFloatBE = function readFloatBE(offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 4, this.length);\n  return ieee754.read(this, offset, false, 23, 4);\n};\n\nBuffer.prototype.readDoubleLE = function readDoubleLE(offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 8, this.length);\n  return ieee754.read(this, offset, true, 52, 8);\n};\n\nBuffer.prototype.readDoubleBE = function readDoubleBE(offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 8, this.length);\n  return ieee754.read(this, offset, false, 52, 8);\n};\n\nfunction checkInt(buf, value, offset, ext, max, min) {\n  if (!Buffer.isBuffer(buf)) throw new TypeError('\"buffer\" argument must be a Buffer instance');\n  if (value > max || value < min) throw new RangeError('\"value\" argument is out of bounds');\n  if (offset + ext > buf.length) throw new RangeError('Index out of range');\n}\n\nBuffer.prototype.writeUIntLE = function writeUIntLE(value, offset, byteLength, noAssert) {\n  value = +value;\n  offset = offset | 0;\n  byteLength = byteLength | 0;\n\n  if (!noAssert) {\n    var maxBytes = Math.pow(2, 8 * byteLength) - 1;\n    checkInt(this, value, offset, byteLength, maxBytes, 0);\n  }\n\n  var mul = 1;\n  var i = 0;\n  this[offset] = value & 0xFF;\n\n  while (++i < byteLength && (mul *= 0x100)) {\n    this[offset + i] = value / mul & 0xFF;\n  }\n\n  return offset + byteLength;\n};\n\nBuffer.prototype.writeUIntBE = function writeUIntBE(value, offset, byteLength, noAssert) {\n  value = +value;\n  offset = offset | 0;\n  byteLength = byteLength | 0;\n\n  if (!noAssert) {\n    var maxBytes = Math.pow(2, 8 * byteLength) - 1;\n    checkInt(this, value, offset, byteLength, maxBytes, 0);\n  }\n\n  var i = byteLength - 1;\n  var mul = 1;\n  this[offset + i] = value & 0xFF;\n\n  while (--i >= 0 && (mul *= 0x100)) {\n    this[offset + i] = value / mul & 0xFF;\n  }\n\n  return offset + byteLength;\n};\n\nBuffer.prototype.writeUInt8 = function writeUInt8(value, offset, noAssert) {\n  value = +value;\n  offset = offset | 0;\n  if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0);\n  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value);\n  this[offset] = value & 0xff;\n  return offset + 1;\n};\n\nfunction objectWriteUInt16(buf, value, offset, littleEndian) {\n  if (value < 0) value = 0xffff + value + 1;\n\n  for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; ++i) {\n    buf[offset + i] = (value & 0xff << 8 * (littleEndian ? i : 1 - i)) >>> (littleEndian ? i : 1 - i) * 8;\n  }\n}\n\nBuffer.prototype.writeUInt16LE = function writeUInt16LE(value, offset, noAssert) {\n  value = +value;\n  offset = offset | 0;\n  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0);\n\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = value & 0xff;\n    this[offset + 1] = value >>> 8;\n  } else {\n    objectWriteUInt16(this, value, offset, true);\n  }\n\n  return offset + 2;\n};\n\nBuffer.prototype.writeUInt16BE = function writeUInt16BE(value, offset, noAssert) {\n  value = +value;\n  offset = offset | 0;\n  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0);\n\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = value >>> 8;\n    this[offset + 1] = value & 0xff;\n  } else {\n    objectWriteUInt16(this, value, offset, false);\n  }\n\n  return offset + 2;\n};\n\nfunction objectWriteUInt32(buf, value, offset, littleEndian) {\n  if (value < 0) value = 0xffffffff + value + 1;\n\n  for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; ++i) {\n    buf[offset + i] = value >>> (littleEndian ? i : 3 - i) * 8 & 0xff;\n  }\n}\n\nBuffer.prototype.writeUInt32LE = function writeUInt32LE(value, offset, noAssert) {\n  value = +value;\n  offset = offset | 0;\n  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0);\n\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset + 3] = value >>> 24;\n    this[offset + 2] = value >>> 16;\n    this[offset + 1] = value >>> 8;\n    this[offset] = value & 0xff;\n  } else {\n    objectWriteUInt32(this, value, offset, true);\n  }\n\n  return offset + 4;\n};\n\nBuffer.prototype.writeUInt32BE = function writeUInt32BE(value, offset, noAssert) {\n  value = +value;\n  offset = offset | 0;\n  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0);\n\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = value >>> 24;\n    this[offset + 1] = value >>> 16;\n    this[offset + 2] = value >>> 8;\n    this[offset + 3] = value & 0xff;\n  } else {\n    objectWriteUInt32(this, value, offset, false);\n  }\n\n  return offset + 4;\n};\n\nBuffer.prototype.writeIntLE = function writeIntLE(value, offset, byteLength, noAssert) {\n  value = +value;\n  offset = offset | 0;\n\n  if (!noAssert) {\n    var limit = Math.pow(2, 8 * byteLength - 1);\n    checkInt(this, value, offset, byteLength, limit - 1, -limit);\n  }\n\n  var i = 0;\n  var mul = 1;\n  var sub = 0;\n  this[offset] = value & 0xFF;\n\n  while (++i < byteLength && (mul *= 0x100)) {\n    if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {\n      sub = 1;\n    }\n\n    this[offset + i] = (value / mul >> 0) - sub & 0xFF;\n  }\n\n  return offset + byteLength;\n};\n\nBuffer.prototype.writeIntBE = function writeIntBE(value, offset, byteLength, noAssert) {\n  value = +value;\n  offset = offset | 0;\n\n  if (!noAssert) {\n    var limit = Math.pow(2, 8 * byteLength - 1);\n    checkInt(this, value, offset, byteLength, limit - 1, -limit);\n  }\n\n  var i = byteLength - 1;\n  var mul = 1;\n  var sub = 0;\n  this[offset + i] = value & 0xFF;\n\n  while (--i >= 0 && (mul *= 0x100)) {\n    if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {\n      sub = 1;\n    }\n\n    this[offset + i] = (value / mul >> 0) - sub & 0xFF;\n  }\n\n  return offset + byteLength;\n};\n\nBuffer.prototype.writeInt8 = function writeInt8(value, offset, noAssert) {\n  value = +value;\n  offset = offset | 0;\n  if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80);\n  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value);\n  if (value < 0) value = 0xff + value + 1;\n  this[offset] = value & 0xff;\n  return offset + 1;\n};\n\nBuffer.prototype.writeInt16LE = function writeInt16LE(value, offset, noAssert) {\n  value = +value;\n  offset = offset | 0;\n  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000);\n\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = value & 0xff;\n    this[offset + 1] = value >>> 8;\n  } else {\n    objectWriteUInt16(this, value, offset, true);\n  }\n\n  return offset + 2;\n};\n\nBuffer.prototype.writeInt16BE = function writeInt16BE(value, offset, noAssert) {\n  value = +value;\n  offset = offset | 0;\n  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000);\n\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = value >>> 8;\n    this[offset + 1] = value & 0xff;\n  } else {\n    objectWriteUInt16(this, value, offset, false);\n  }\n\n  return offset + 2;\n};\n\nBuffer.prototype.writeInt32LE = function writeInt32LE(value, offset, noAssert) {\n  value = +value;\n  offset = offset | 0;\n  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000);\n\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = value & 0xff;\n    this[offset + 1] = value >>> 8;\n    this[offset + 2] = value >>> 16;\n    this[offset + 3] = value >>> 24;\n  } else {\n    objectWriteUInt32(this, value, offset, true);\n  }\n\n  return offset + 4;\n};\n\nBuffer.prototype.writeInt32BE = function writeInt32BE(value, offset, noAssert) {\n  value = +value;\n  offset = offset | 0;\n  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000);\n  if (value < 0) value = 0xffffffff + value + 1;\n\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = value >>> 24;\n    this[offset + 1] = value >>> 16;\n    this[offset + 2] = value >>> 8;\n    this[offset + 3] = value & 0xff;\n  } else {\n    objectWriteUInt32(this, value, offset, false);\n  }\n\n  return offset + 4;\n};\n\nfunction checkIEEE754(buf, value, offset, ext, max, min) {\n  if (offset + ext > buf.length) throw new RangeError('Index out of range');\n  if (offset < 0) throw new RangeError('Index out of range');\n}\n\nfunction writeFloat(buf, value, offset, littleEndian, noAssert) {\n  if (!noAssert) {\n    checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38);\n  }\n\n  ieee754.write(buf, value, offset, littleEndian, 23, 4);\n  return offset + 4;\n}\n\nBuffer.prototype.writeFloatLE = function writeFloatLE(value, offset, noAssert) {\n  return writeFloat(this, value, offset, true, noAssert);\n};\n\nBuffer.prototype.writeFloatBE = function writeFloatBE(value, offset, noAssert) {\n  return writeFloat(this, value, offset, false, noAssert);\n};\n\nfunction writeDouble(buf, value, offset, littleEndian, noAssert) {\n  if (!noAssert) {\n    checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308);\n  }\n\n  ieee754.write(buf, value, offset, littleEndian, 52, 8);\n  return offset + 8;\n}\n\nBuffer.prototype.writeDoubleLE = function writeDoubleLE(value, offset, noAssert) {\n  return writeDouble(this, value, offset, true, noAssert);\n};\n\nBuffer.prototype.writeDoubleBE = function writeDoubleBE(value, offset, noAssert) {\n  return writeDouble(this, value, offset, false, noAssert);\n}; // copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)\n\n\nBuffer.prototype.copy = function copy(target, targetStart, start, end) {\n  if (!start) start = 0;\n  if (!end && end !== 0) end = this.length;\n  if (targetStart >= target.length) targetStart = target.length;\n  if (!targetStart) targetStart = 0;\n  if (end > 0 && end < start) end = start; // Copy 0 bytes; we're done\n\n  if (end === start) return 0;\n  if (target.length === 0 || this.length === 0) return 0; // Fatal error conditions\n\n  if (targetStart < 0) {\n    throw new RangeError('targetStart out of bounds');\n  }\n\n  if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds');\n  if (end < 0) throw new RangeError('sourceEnd out of bounds'); // Are we oob?\n\n  if (end > this.length) end = this.length;\n\n  if (target.length - targetStart < end - start) {\n    end = target.length - targetStart + start;\n  }\n\n  var len = end - start;\n  var i;\n\n  if (this === target && start < targetStart && targetStart < end) {\n    // descending copy from end\n    for (i = len - 1; i >= 0; --i) {\n      target[i + targetStart] = this[i + start];\n    }\n  } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {\n    // ascending copy from start\n    for (i = 0; i < len; ++i) {\n      target[i + targetStart] = this[i + start];\n    }\n  } else {\n    Uint8Array.prototype.set.call(target, this.subarray(start, start + len), targetStart);\n  }\n\n  return len;\n}; // Usage:\n//    buffer.fill(number[, offset[, end]])\n//    buffer.fill(buffer[, offset[, end]])\n//    buffer.fill(string[, offset[, end]][, encoding])\n\n\nBuffer.prototype.fill = function fill(val, start, end, encoding) {\n  // Handle string cases:\n  if (typeof val === 'string') {\n    if (typeof start === 'string') {\n      encoding = start;\n      start = 0;\n      end = this.length;\n    } else if (typeof end === 'string') {\n      encoding = end;\n      end = this.length;\n    }\n\n    if (val.length === 1) {\n      var code = val.charCodeAt(0);\n\n      if (code < 256) {\n        val = code;\n      }\n    }\n\n    if (encoding !== undefined && typeof encoding !== 'string') {\n      throw new TypeError('encoding must be a string');\n    }\n\n    if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {\n      throw new TypeError('Unknown encoding: ' + encoding);\n    }\n  } else if (typeof val === 'number') {\n    val = val & 255;\n  } // Invalid ranges are not set to a default, so can range check early.\n\n\n  if (start < 0 || this.length < start || this.length < end) {\n    throw new RangeError('Out of range index');\n  }\n\n  if (end <= start) {\n    return this;\n  }\n\n  start = start >>> 0;\n  end = end === undefined ? this.length : end >>> 0;\n  if (!val) val = 0;\n  var i;\n\n  if (typeof val === 'number') {\n    for (i = start; i < end; ++i) {\n      this[i] = val;\n    }\n  } else {\n    var bytes = Buffer.isBuffer(val) ? val : utf8ToBytes(new Buffer(val, encoding).toString());\n    var len = bytes.length;\n\n    for (i = 0; i < end - start; ++i) {\n      this[i + start] = bytes[i % len];\n    }\n  }\n\n  return this;\n}; // HELPER FUNCTIONS\n// ================\n\n\nvar INVALID_BASE64_RE = /[^+\\/0-9A-Za-z-_]/g;\n\nfunction base64clean(str) {\n  // Node strips out invalid characters like \\n and \\t from the string, base64-js does not\n  str = stringtrim(str).replace(INVALID_BASE64_RE, ''); // Node converts strings with length < 2 to ''\n\n  if (str.length < 2) return ''; // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not\n\n  while (str.length % 4 !== 0) {\n    str = str + '=';\n  }\n\n  return str;\n}\n\nfunction stringtrim(str) {\n  if (str.trim) return str.trim();\n  return str.replace(/^\\s+|\\s+$/g, '');\n}\n\nfunction toHex(n) {\n  if (n < 16) return '0' + n.toString(16);\n  return n.toString(16);\n}\n\nfunction utf8ToBytes(string, units) {\n  units = units || Infinity;\n  var codePoint;\n  var length = string.length;\n  var leadSurrogate = null;\n  var bytes = [];\n\n  for (var i = 0; i < length; ++i) {\n    codePoint = string.charCodeAt(i); // is surrogate component\n\n    if (codePoint > 0xD7FF && codePoint < 0xE000) {\n      // last char was a lead\n      if (!leadSurrogate) {\n        // no lead yet\n        if (codePoint > 0xDBFF) {\n          // unexpected trail\n          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);\n          continue;\n        } else if (i + 1 === length) {\n          // unpaired lead\n          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);\n          continue;\n        } // valid lead\n\n\n        leadSurrogate = codePoint;\n        continue;\n      } // 2 leads in a row\n\n\n      if (codePoint < 0xDC00) {\n        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);\n        leadSurrogate = codePoint;\n        continue;\n      } // valid surrogate pair\n\n\n      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000;\n    } else if (leadSurrogate) {\n      // valid bmp char, but last char was a lead\n      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD);\n    }\n\n    leadSurrogate = null; // encode utf8\n\n    if (codePoint < 0x80) {\n      if ((units -= 1) < 0) break;\n      bytes.push(codePoint);\n    } else if (codePoint < 0x800) {\n      if ((units -= 2) < 0) break;\n      bytes.push(codePoint >> 0x6 | 0xC0, codePoint & 0x3F | 0x80);\n    } else if (codePoint < 0x10000) {\n      if ((units -= 3) < 0) break;\n      bytes.push(codePoint >> 0xC | 0xE0, codePoint >> 0x6 & 0x3F | 0x80, codePoint & 0x3F | 0x80);\n    } else if (codePoint < 0x110000) {\n      if ((units -= 4) < 0) break;\n      bytes.push(codePoint >> 0x12 | 0xF0, codePoint >> 0xC & 0x3F | 0x80, codePoint >> 0x6 & 0x3F | 0x80, codePoint & 0x3F | 0x80);\n    } else {\n      throw new Error('Invalid code point');\n    }\n  }\n\n  return bytes;\n}\n\nfunction asciiToBytes(str) {\n  var byteArray = [];\n\n  for (var i = 0; i < str.length; ++i) {\n    // Node's code seems to be doing this and not & 0x7F..\n    byteArray.push(str.charCodeAt(i) & 0xFF);\n  }\n\n  return byteArray;\n}\n\nfunction utf16leToBytes(str, units) {\n  var c, hi, lo;\n  var byteArray = [];\n\n  for (var i = 0; i < str.length; ++i) {\n    if ((units -= 2) < 0) break;\n    c = str.charCodeAt(i);\n    hi = c >> 8;\n    lo = c % 256;\n    byteArray.push(lo);\n    byteArray.push(hi);\n  }\n\n  return byteArray;\n}\n\nfunction base64ToBytes(str) {\n  return base64.toByteArray(base64clean(str));\n}\n\nfunction blitBuffer(src, dst, offset, length) {\n  for (var i = 0; i < length; ++i) {\n    if (i + offset >= dst.length || i >= src.length) break;\n    dst[i + offset] = src[i];\n  }\n\n  return i;\n}\n\nfunction isnan(val) {\n  return val !== val; // eslint-disable-line no-self-compare\n}","var util = require('../util');\n\nvar Shape = require('../model/shape');\n\nfunction DomXmlParser() {}\n\nDomXmlParser.prototype.parse = function (xml, shape) {\n  if (xml.replace(/^\\s+/, '') === '') return {};\n  var result, error;\n\n  try {\n    if (window.DOMParser) {\n      try {\n        var parser = new DOMParser();\n        result = parser.parseFromString(xml, 'text/xml');\n      } catch (syntaxError) {\n        throw util.error(new Error('Parse error in document'), {\n          originalError: syntaxError,\n          code: 'XMLParserError',\n          retryable: true\n        });\n      }\n\n      if (result.documentElement === null) {\n        throw util.error(new Error('Cannot parse empty document.'), {\n          code: 'XMLParserError',\n          retryable: true\n        });\n      }\n\n      var isError = result.getElementsByTagName('parsererror')[0];\n\n      if (isError && (isError.parentNode === result || isError.parentNode.nodeName === 'body' || isError.parentNode.parentNode === result || isError.parentNode.parentNode.nodeName === 'body')) {\n        var errorElement = isError.getElementsByTagName('div')[0] || isError;\n        throw util.error(new Error(errorElement.textContent || 'Parser error in document'), {\n          code: 'XMLParserError',\n          retryable: true\n        });\n      }\n    } else if (window.ActiveXObject) {\n      result = new window.ActiveXObject('Microsoft.XMLDOM');\n      result.async = false;\n\n      if (!result.loadXML(xml)) {\n        throw util.error(new Error('Parse error in document'), {\n          code: 'XMLParserError',\n          retryable: true\n        });\n      }\n    } else {\n      throw new Error('Cannot load XML parser');\n    }\n  } catch (e) {\n    error = e;\n  }\n\n  if (result && result.documentElement && !error) {\n    var data = parseXml(result.documentElement, shape);\n    var metadata = getElementByTagName(result.documentElement, 'ResponseMetadata');\n\n    if (metadata) {\n      data.ResponseMetadata = parseXml(metadata, {});\n    }\n\n    return data;\n  } else if (error) {\n    throw util.error(error || new Error(), {\n      code: 'XMLParserError',\n      retryable: true\n    });\n  } else {\n    // empty xml document\n    return {};\n  }\n};\n\nfunction getElementByTagName(xml, tag) {\n  var elements = xml.getElementsByTagName(tag);\n\n  for (var i = 0, iLen = elements.length; i < iLen; i++) {\n    if (elements[i].parentNode === xml) {\n      return elements[i];\n    }\n  }\n}\n\nfunction parseXml(xml, shape) {\n  if (!shape) shape = {};\n\n  switch (shape.type) {\n    case 'structure':\n      return parseStructure(xml, shape);\n\n    case 'map':\n      return parseMap(xml, shape);\n\n    case 'list':\n      return parseList(xml, shape);\n\n    case undefined:\n    case null:\n      return parseUnknown(xml);\n\n    default:\n      return parseScalar(xml, shape);\n  }\n}\n\nfunction parseStructure(xml, shape) {\n  var data = {};\n  if (xml === null) return data;\n  util.each(shape.members, function (memberName, memberShape) {\n    if (memberShape.isXmlAttribute) {\n      if (Object.prototype.hasOwnProperty.call(xml.attributes, memberShape.name)) {\n        var value = xml.attributes[memberShape.name].value;\n        data[memberName] = parseXml({\n          textContent: value\n        }, memberShape);\n      }\n    } else {\n      var xmlChild = memberShape.flattened ? xml : getElementByTagName(xml, memberShape.name);\n\n      if (xmlChild) {\n        data[memberName] = parseXml(xmlChild, memberShape);\n      } else if (!memberShape.flattened && memberShape.type === 'list') {\n        data[memberName] = memberShape.defaultValue;\n      }\n    }\n  });\n  return data;\n}\n\nfunction parseMap(xml, shape) {\n  var data = {};\n  var xmlKey = shape.key.name || 'key';\n  var xmlValue = shape.value.name || 'value';\n  var tagName = shape.flattened ? shape.name : 'entry';\n  var child = xml.firstElementChild;\n\n  while (child) {\n    if (child.nodeName === tagName) {\n      var key = getElementByTagName(child, xmlKey).textContent;\n      var value = getElementByTagName(child, xmlValue);\n      data[key] = parseXml(value, shape.value);\n    }\n\n    child = child.nextElementSibling;\n  }\n\n  return data;\n}\n\nfunction parseList(xml, shape) {\n  var data = [];\n  var tagName = shape.flattened ? shape.name : shape.member.name || 'member';\n  var child = xml.firstElementChild;\n\n  while (child) {\n    if (child.nodeName === tagName) {\n      data.push(parseXml(child, shape.member));\n    }\n\n    child = child.nextElementSibling;\n  }\n\n  return data;\n}\n\nfunction parseScalar(xml, shape) {\n  if (xml.getAttribute) {\n    var encoding = xml.getAttribute('encoding');\n\n    if (encoding === 'base64') {\n      shape = new Shape.create({\n        type: encoding\n      });\n    }\n  }\n\n  var text = xml.textContent;\n  if (text === '') text = null;\n\n  if (typeof shape.toType === 'function') {\n    return shape.toType(text);\n  } else {\n    return text;\n  }\n}\n\nfunction parseUnknown(xml) {\n  if (xml === undefined || xml === null) return ''; // empty object\n\n  if (!xml.firstElementChild) {\n    if (xml.parentNode.parentNode === null) return {};\n    if (xml.childNodes.length === 0) return '';else return xml.textContent;\n  } // object, parse as structure\n\n\n  var shape = {\n    type: 'structure',\n    members: {}\n  };\n  var child = xml.firstElementChild;\n\n  while (child) {\n    var tag = child.nodeName;\n\n    if (Object.prototype.hasOwnProperty.call(shape.members, tag)) {\n      // multiple tags of the same name makes it a list\n      shape.members[tag].type = 'list';\n    } else {\n      shape.members[tag] = {\n        name: tag\n      };\n    }\n\n    child = child.nextElementSibling;\n  }\n\n  return parseStructure(xml, shape);\n}\n/**\n * @api private\n */\n\n\nmodule.exports = DomXmlParser;","var util = require('../util');\n\nvar AWS = require('../core');\n/**\n * Prepend prefix defined by API model to endpoint that's already\n * constructed. This feature does not apply to operations using\n * endpoint discovery and can be disabled.\n * @api private\n */\n\n\nfunction populateHostPrefix(request) {\n  var enabled = request.service.config.hostPrefixEnabled;\n  if (!enabled) return request;\n  var operationModel = request.service.api.operations[request.operation]; //don't marshal host prefix when operation has endpoint discovery traits\n\n  if (hasEndpointDiscover(request)) return request;\n\n  if (operationModel.endpoint && operationModel.endpoint.hostPrefix) {\n    var hostPrefixNotation = operationModel.endpoint.hostPrefix;\n    var hostPrefix = expandHostPrefix(hostPrefixNotation, request.params, operationModel.input);\n    prependEndpointPrefix(request.httpRequest.endpoint, hostPrefix);\n    validateHostname(request.httpRequest.endpoint.hostname);\n  }\n\n  return request;\n}\n/**\n * @api private\n */\n\n\nfunction hasEndpointDiscover(request) {\n  var api = request.service.api;\n  var operationModel = api.operations[request.operation];\n  var isEndpointOperation = api.endpointOperation && api.endpointOperation === util.string.lowerFirst(operationModel.name);\n  return operationModel.endpointDiscoveryRequired !== 'NULL' || isEndpointOperation === true;\n}\n/**\n * @api private\n */\n\n\nfunction expandHostPrefix(hostPrefixNotation, params, shape) {\n  util.each(shape.members, function (name, member) {\n    if (member.hostLabel === true) {\n      if (typeof params[name] !== 'string' || params[name] === '') {\n        throw util.error(new Error(), {\n          message: 'Parameter ' + name + ' should be a non-empty string.',\n          code: 'InvalidParameter'\n        });\n      }\n\n      var regex = new RegExp('\\\\{' + name + '\\\\}', 'g');\n      hostPrefixNotation = hostPrefixNotation.replace(regex, params[name]);\n    }\n  });\n  return hostPrefixNotation;\n}\n/**\n * @api private\n */\n\n\nfunction prependEndpointPrefix(endpoint, prefix) {\n  if (endpoint.host) {\n    endpoint.host = prefix + endpoint.host;\n  }\n\n  if (endpoint.hostname) {\n    endpoint.hostname = prefix + endpoint.hostname;\n  }\n}\n/**\n * @api private\n */\n\n\nfunction validateHostname(hostname) {\n  var labels = hostname.split('.'); //Reference: https://tools.ietf.org/html/rfc1123#section-2\n\n  var hostPattern = /^[a-zA-Z0-9]{1}$|^[a-zA-Z0-9][a-zA-Z0-9\\-]*[a-zA-Z0-9]$/;\n  util.arrayEach(labels, function (label) {\n    if (!label.length || label.length < 1 || label.length > 63) {\n      throw util.error(new Error(), {\n        code: 'ValidationError',\n        message: 'Hostname label length should be between 1 to 63 characters, inclusive.'\n      });\n    }\n\n    if (!hostPattern.test(label)) {\n      throw AWS.util.error(new Error(), {\n        code: 'ValidationError',\n        message: label + ' is not hostname compatible.'\n      });\n    }\n  });\n}\n\nmodule.exports = {\n  populateHostPrefix: populateHostPrefix\n};","\"use strict\";\n\nObject.defineProperty(exports, \"__esModule\", {\n  value: true\n});\n\nvar LRU_1 = require(\"./utils/LRU\");\n\nvar CACHE_SIZE = 1000;\n/**\n * Inspired node-lru-cache[https://github.com/isaacs/node-lru-cache]\n */\n\nvar EndpointCache =\n/** @class */\nfunction () {\n  function EndpointCache(maxSize) {\n    if (maxSize === void 0) {\n      maxSize = CACHE_SIZE;\n    }\n\n    this.maxSize = maxSize;\n    this.cache = new LRU_1.LRUCache(maxSize);\n  }\n\n  ;\n  Object.defineProperty(EndpointCache.prototype, \"size\", {\n    get: function get() {\n      return this.cache.length;\n    },\n    enumerable: true,\n    configurable: true\n  });\n\n  EndpointCache.prototype.put = function (key, value) {\n    var keyString = typeof key !== 'string' ? EndpointCache.getKeyString(key) : key;\n    var endpointRecord = this.populateValue(value);\n    this.cache.put(keyString, endpointRecord);\n  };\n\n  EndpointCache.prototype.get = function (key) {\n    var keyString = typeof key !== 'string' ? EndpointCache.getKeyString(key) : key;\n    var now = Date.now();\n    var records = this.cache.get(keyString);\n\n    if (records) {\n      for (var i = 0; i < records.length; i++) {\n        var record = records[i];\n\n        if (record.Expire < now) {\n          this.cache.remove(keyString);\n          return undefined;\n        }\n      }\n    }\n\n    return records;\n  };\n\n  EndpointCache.getKeyString = function (key) {\n    var identifiers = [];\n    var identifierNames = Object.keys(key).sort();\n\n    for (var i = 0; i < identifierNames.length; i++) {\n      var identifierName = identifierNames[i];\n      if (key[identifierName] === undefined) continue;\n      identifiers.push(key[identifierName]);\n    }\n\n    return identifiers.join(' ');\n  };\n\n  EndpointCache.prototype.populateValue = function (endpoints) {\n    var now = Date.now();\n    return endpoints.map(function (endpoint) {\n      return {\n        Address: endpoint.Address || '',\n        Expire: now + (endpoint.CachePeriodInMinutes || 1) * 60 * 1000\n      };\n    });\n  };\n\n  EndpointCache.prototype.empty = function () {\n    this.cache.empty();\n  };\n\n  EndpointCache.prototype.remove = function (key) {\n    var keyString = typeof key !== 'string' ? EndpointCache.getKeyString(key) : key;\n    this.cache.remove(keyString);\n  };\n\n  return EndpointCache;\n}();\n\nexports.EndpointCache = EndpointCache;","var Collection = require('./collection');\n\nvar util = require('../util');\n\nfunction property(obj, name, value) {\n  if (value !== null && value !== undefined) {\n    util.property.apply(this, arguments);\n  }\n}\n\nfunction memoizedProperty(obj, name) {\n  if (!obj.constructor.prototype[name]) {\n    util.memoizedProperty.apply(this, arguments);\n  }\n}\n\nfunction Shape(shape, options, memberName) {\n  options = options || {};\n  property(this, 'shape', shape.shape);\n  property(this, 'api', options.api, false);\n  property(this, 'type', shape.type);\n  property(this, 'enum', shape.enum);\n  property(this, 'min', shape.min);\n  property(this, 'max', shape.max);\n  property(this, 'pattern', shape.pattern);\n  property(this, 'location', shape.location || this.location || 'body');\n  property(this, 'name', this.name || shape.xmlName || shape.queryName || shape.locationName || memberName);\n  property(this, 'isStreaming', shape.streaming || this.isStreaming || false);\n  property(this, 'requiresLength', shape.requiresLength, false);\n  property(this, 'isComposite', shape.isComposite || false);\n  property(this, 'isShape', true, false);\n  property(this, 'isQueryName', Boolean(shape.queryName), false);\n  property(this, 'isLocationName', Boolean(shape.locationName), false);\n  property(this, 'isIdempotent', shape.idempotencyToken === true);\n  property(this, 'isJsonValue', shape.jsonvalue === true);\n  property(this, 'isSensitive', shape.sensitive === true || shape.prototype && shape.prototype.sensitive === true);\n  property(this, 'isEventStream', Boolean(shape.eventstream), false);\n  property(this, 'isEvent', Boolean(shape.event), false);\n  property(this, 'isEventPayload', Boolean(shape.eventpayload), false);\n  property(this, 'isEventHeader', Boolean(shape.eventheader), false);\n  property(this, 'isTimestampFormatSet', Boolean(shape.timestampFormat) || shape.prototype && shape.prototype.isTimestampFormatSet === true, false);\n  property(this, 'endpointDiscoveryId', Boolean(shape.endpointdiscoveryid), false);\n  property(this, 'hostLabel', Boolean(shape.hostLabel), false);\n\n  if (options.documentation) {\n    property(this, 'documentation', shape.documentation);\n    property(this, 'documentationUrl', shape.documentationUrl);\n  }\n\n  if (shape.xmlAttribute) {\n    property(this, 'isXmlAttribute', shape.xmlAttribute || false);\n  } // type conversion and parsing\n\n\n  property(this, 'defaultValue', null);\n\n  this.toWireFormat = function (value) {\n    if (value === null || value === undefined) return '';\n    return value;\n  };\n\n  this.toType = function (value) {\n    return value;\n  };\n}\n/**\n * @api private\n */\n\n\nShape.normalizedTypes = {\n  character: 'string',\n  double: 'float',\n  long: 'integer',\n  short: 'integer',\n  biginteger: 'integer',\n  bigdecimal: 'float',\n  blob: 'binary'\n};\n/**\n * @api private\n */\n\nShape.types = {\n  'structure': StructureShape,\n  'list': ListShape,\n  'map': MapShape,\n  'boolean': BooleanShape,\n  'timestamp': TimestampShape,\n  'float': FloatShape,\n  'integer': IntegerShape,\n  'string': StringShape,\n  'base64': Base64Shape,\n  'binary': BinaryShape\n};\n\nShape.resolve = function resolve(shape, options) {\n  if (shape.shape) {\n    var refShape = options.api.shapes[shape.shape];\n\n    if (!refShape) {\n      throw new Error('Cannot find shape reference: ' + shape.shape);\n    }\n\n    return refShape;\n  } else {\n    return null;\n  }\n};\n\nShape.create = function create(shape, options, memberName) {\n  if (shape.isShape) return shape;\n  var refShape = Shape.resolve(shape, options);\n\n  if (refShape) {\n    var filteredKeys = Object.keys(shape);\n\n    if (!options.documentation) {\n      filteredKeys = filteredKeys.filter(function (name) {\n        return !name.match(/documentation/);\n      });\n    } // create an inline shape with extra members\n\n\n    var InlineShape = function InlineShape() {\n      refShape.constructor.call(this, shape, options, memberName);\n    };\n\n    InlineShape.prototype = refShape;\n    return new InlineShape();\n  } else {\n    // set type if not set\n    if (!shape.type) {\n      if (shape.members) shape.type = 'structure';else if (shape.member) shape.type = 'list';else if (shape.key) shape.type = 'map';else shape.type = 'string';\n    } // normalize types\n\n\n    var origType = shape.type;\n\n    if (Shape.normalizedTypes[shape.type]) {\n      shape.type = Shape.normalizedTypes[shape.type];\n    }\n\n    if (Shape.types[shape.type]) {\n      return new Shape.types[shape.type](shape, options, memberName);\n    } else {\n      throw new Error('Unrecognized shape type: ' + origType);\n    }\n  }\n};\n\nfunction CompositeShape(shape) {\n  Shape.apply(this, arguments);\n  property(this, 'isComposite', true);\n\n  if (shape.flattened) {\n    property(this, 'flattened', shape.flattened || false);\n  }\n}\n\nfunction StructureShape(shape, options) {\n  var self = this;\n  var requiredMap = null,\n      firstInit = !this.isShape;\n  CompositeShape.apply(this, arguments);\n\n  if (firstInit) {\n    property(this, 'defaultValue', function () {\n      return {};\n    });\n    property(this, 'members', {});\n    property(this, 'memberNames', []);\n    property(this, 'required', []);\n    property(this, 'isRequired', function () {\n      return false;\n    });\n  }\n\n  if (shape.members) {\n    property(this, 'members', new Collection(shape.members, options, function (name, member) {\n      return Shape.create(member, options, name);\n    }));\n    memoizedProperty(this, 'memberNames', function () {\n      return shape.xmlOrder || Object.keys(shape.members);\n    });\n\n    if (shape.event) {\n      memoizedProperty(this, 'eventPayloadMemberName', function () {\n        var members = self.members;\n        var memberNames = self.memberNames; // iterate over members to find ones that are event payloads\n\n        for (var i = 0, iLen = memberNames.length; i < iLen; i++) {\n          if (members[memberNames[i]].isEventPayload) {\n            return memberNames[i];\n          }\n        }\n      });\n      memoizedProperty(this, 'eventHeaderMemberNames', function () {\n        var members = self.members;\n        var memberNames = self.memberNames;\n        var eventHeaderMemberNames = []; // iterate over members to find ones that are event headers\n\n        for (var i = 0, iLen = memberNames.length; i < iLen; i++) {\n          if (members[memberNames[i]].isEventHeader) {\n            eventHeaderMemberNames.push(memberNames[i]);\n          }\n        }\n\n        return eventHeaderMemberNames;\n      });\n    }\n  }\n\n  if (shape.required) {\n    property(this, 'required', shape.required);\n    property(this, 'isRequired', function (name) {\n      if (!requiredMap) {\n        requiredMap = {};\n\n        for (var i = 0; i < shape.required.length; i++) {\n          requiredMap[shape.required[i]] = true;\n        }\n      }\n\n      return requiredMap[name];\n    }, false, true);\n  }\n\n  property(this, 'resultWrapper', shape.resultWrapper || null);\n\n  if (shape.payload) {\n    property(this, 'payload', shape.payload);\n  }\n\n  if (typeof shape.xmlNamespace === 'string') {\n    property(this, 'xmlNamespaceUri', shape.xmlNamespace);\n  } else if (typeof shape.xmlNamespace === 'object') {\n    property(this, 'xmlNamespacePrefix', shape.xmlNamespace.prefix);\n    property(this, 'xmlNamespaceUri', shape.xmlNamespace.uri);\n  }\n}\n\nfunction ListShape(shape, options) {\n  var self = this,\n      firstInit = !this.isShape;\n  CompositeShape.apply(this, arguments);\n\n  if (firstInit) {\n    property(this, 'defaultValue', function () {\n      return [];\n    });\n  }\n\n  if (shape.member) {\n    memoizedProperty(this, 'member', function () {\n      return Shape.create(shape.member, options);\n    });\n  }\n\n  if (this.flattened) {\n    var oldName = this.name;\n    memoizedProperty(this, 'name', function () {\n      return self.member.name || oldName;\n    });\n  }\n}\n\nfunction MapShape(shape, options) {\n  var firstInit = !this.isShape;\n  CompositeShape.apply(this, arguments);\n\n  if (firstInit) {\n    property(this, 'defaultValue', function () {\n      return {};\n    });\n    property(this, 'key', Shape.create({\n      type: 'string'\n    }, options));\n    property(this, 'value', Shape.create({\n      type: 'string'\n    }, options));\n  }\n\n  if (shape.key) {\n    memoizedProperty(this, 'key', function () {\n      return Shape.create(shape.key, options);\n    });\n  }\n\n  if (shape.value) {\n    memoizedProperty(this, 'value', function () {\n      return Shape.create(shape.value, options);\n    });\n  }\n}\n\nfunction TimestampShape(shape) {\n  var self = this;\n  Shape.apply(this, arguments);\n\n  if (shape.timestampFormat) {\n    property(this, 'timestampFormat', shape.timestampFormat);\n  } else if (self.isTimestampFormatSet && this.timestampFormat) {\n    property(this, 'timestampFormat', this.timestampFormat);\n  } else if (this.location === 'header') {\n    property(this, 'timestampFormat', 'rfc822');\n  } else if (this.location === 'querystring') {\n    property(this, 'timestampFormat', 'iso8601');\n  } else if (this.api) {\n    switch (this.api.protocol) {\n      case 'json':\n      case 'rest-json':\n        property(this, 'timestampFormat', 'unixTimestamp');\n        break;\n\n      case 'rest-xml':\n      case 'query':\n      case 'ec2':\n        property(this, 'timestampFormat', 'iso8601');\n        break;\n    }\n  }\n\n  this.toType = function (value) {\n    if (value === null || value === undefined) return null;\n    if (typeof value.toUTCString === 'function') return value;\n    return typeof value === 'string' || typeof value === 'number' ? util.date.parseTimestamp(value) : null;\n  };\n\n  this.toWireFormat = function (value) {\n    return util.date.format(value, self.timestampFormat);\n  };\n}\n\nfunction StringShape() {\n  Shape.apply(this, arguments);\n  var nullLessProtocols = ['rest-xml', 'query', 'ec2'];\n\n  this.toType = function (value) {\n    value = this.api && nullLessProtocols.indexOf(this.api.protocol) > -1 ? value || '' : value;\n\n    if (this.isJsonValue) {\n      return JSON.parse(value);\n    }\n\n    return value && typeof value.toString === 'function' ? value.toString() : value;\n  };\n\n  this.toWireFormat = function (value) {\n    return this.isJsonValue ? JSON.stringify(value) : value;\n  };\n}\n\nfunction FloatShape() {\n  Shape.apply(this, arguments);\n\n  this.toType = function (value) {\n    if (value === null || value === undefined) return null;\n    return parseFloat(value);\n  };\n\n  this.toWireFormat = this.toType;\n}\n\nfunction IntegerShape() {\n  Shape.apply(this, arguments);\n\n  this.toType = function (value) {\n    if (value === null || value === undefined) return null;\n    return parseInt(value, 10);\n  };\n\n  this.toWireFormat = this.toType;\n}\n\nfunction BinaryShape() {\n  Shape.apply(this, arguments);\n\n  this.toType = function (value) {\n    var buf = util.base64.decode(value);\n\n    if (this.isSensitive && util.isNode() && typeof util.Buffer.alloc === 'function') {\n      /* Node.js can create a Buffer that is not isolated.\n       * i.e. buf.byteLength !== buf.buffer.byteLength\n       * This means that the sensitive data is accessible to anyone with access to buf.buffer.\n       * If this is the node shared Buffer, then other code within this process _could_ find this secret.\n       * Copy sensitive data to an isolated Buffer and zero the sensitive data.\n       * While this is safe to do here, copying this code somewhere else may produce unexpected results.\n       */\n      var secureBuf = util.Buffer.alloc(buf.length, buf);\n      buf.fill(0);\n      buf = secureBuf;\n    }\n\n    return buf;\n  };\n\n  this.toWireFormat = util.base64.encode;\n}\n\nfunction Base64Shape() {\n  BinaryShape.apply(this, arguments);\n}\n\nfunction BooleanShape() {\n  Shape.apply(this, arguments);\n\n  this.toType = function (value) {\n    if (typeof value === 'boolean') return value;\n    if (value === null || value === undefined) return null;\n    return value === 'true';\n  };\n}\n/**\n * @api private\n */\n\n\nShape.shapes = {\n  StructureShape: StructureShape,\n  ListShape: ListShape,\n  MapShape: MapShape,\n  StringShape: StringShape,\n  BooleanShape: BooleanShape,\n  Base64Shape: Base64Shape\n};\n/**\n * @api private\n */\n\nmodule.exports = Shape;","var AWS = require('../core');\n\nvar inherit = AWS.util.inherit;\n\nrequire('./v3');\n/**\n * @api private\n */\n\n\nAWS.Signers.V3Https = inherit(AWS.Signers.V3, {\n  authorization: function authorization(credentials) {\n    return 'AWS3-HTTPS ' + 'AWSAccessKeyId=' + credentials.accessKeyId + ',' + 'Algorithm=HmacSHA256,' + 'Signature=' + this.signature(credentials);\n  },\n  stringToSign: function stringToSign() {\n    return this.request.headers['X-Amz-Date'];\n  }\n});\n/**\n * @api private\n */\n\nmodule.exports = AWS.Signers.V3Https;","var AWS = require('./core');\n\nvar inherit = AWS.util.inherit;\n/**\n * The endpoint that a service will talk to, for example,\n * `'https://ec2.ap-southeast-1.amazonaws.com'`. If\n * you need to override an endpoint for a service, you can\n * set the endpoint on a service by passing the endpoint\n * object with the `endpoint` option key:\n *\n * ```javascript\n * var ep = new AWS.Endpoint('awsproxy.example.com');\n * var s3 = new AWS.S3({endpoint: ep});\n * s3.service.endpoint.hostname == 'awsproxy.example.com'\n * ```\n *\n * Note that if you do not specify a protocol, the protocol will\n * be selected based on your current {AWS.config} configuration.\n *\n * @!attribute protocol\n *   @return [String] the protocol (http or https) of the endpoint\n *     URL\n * @!attribute hostname\n *   @return [String] the host portion of the endpoint, e.g.,\n *     example.com\n * @!attribute host\n *   @return [String] the host portion of the endpoint including\n *     the port, e.g., example.com:80\n * @!attribute port\n *   @return [Integer] the port of the endpoint\n * @!attribute href\n *   @return [String] the full URL of the endpoint\n */\n\nAWS.Endpoint = inherit({\n  /**\n   * @overload Endpoint(endpoint)\n   *   Constructs a new endpoint given an endpoint URL. If the\n   *   URL omits a protocol (http or https), the default protocol\n   *   set in the global {AWS.config} will be used.\n   *   @param endpoint [String] the URL to construct an endpoint from\n   */\n  constructor: function Endpoint(endpoint, config) {\n    AWS.util.hideProperties(this, ['slashes', 'auth', 'hash', 'search', 'query']);\n\n    if (typeof endpoint === 'undefined' || endpoint === null) {\n      throw new Error('Invalid endpoint: ' + endpoint);\n    } else if (typeof endpoint !== 'string') {\n      return AWS.util.copy(endpoint);\n    }\n\n    if (!endpoint.match(/^http/)) {\n      var useSSL = config && config.sslEnabled !== undefined ? config.sslEnabled : AWS.config.sslEnabled;\n      endpoint = (useSSL ? 'https' : 'http') + '://' + endpoint;\n    }\n\n    AWS.util.update(this, AWS.util.urlParse(endpoint)); // Ensure the port property is set as an integer\n\n    if (this.port) {\n      this.port = parseInt(this.port, 10);\n    } else {\n      this.port = this.protocol === 'https:' ? 443 : 80;\n    }\n  }\n});\n/**\n * The low level HTTP request object, encapsulating all HTTP header\n * and body data sent by a service request.\n *\n * @!attribute method\n *   @return [String] the HTTP method of the request\n * @!attribute path\n *   @return [String] the path portion of the URI, e.g.,\n *     \"/list/?start=5&num=10\"\n * @!attribute headers\n *   @return [map<String,String>]\n *     a map of header keys and their respective values\n * @!attribute body\n *   @return [String] the request body payload\n * @!attribute endpoint\n *   @return [AWS.Endpoint] the endpoint for the request\n * @!attribute region\n *   @api private\n *   @return [String] the region, for signing purposes only.\n */\n\nAWS.HttpRequest = inherit({\n  /**\n   * @api private\n   */\n  constructor: function HttpRequest(endpoint, region) {\n    endpoint = new AWS.Endpoint(endpoint);\n    this.method = 'POST';\n    this.path = endpoint.path || '/';\n    this.headers = {};\n    this.body = '';\n    this.endpoint = endpoint;\n    this.region = region;\n    this._userAgent = '';\n    this.setUserAgent();\n  },\n\n  /**\n   * @api private\n   */\n  setUserAgent: function setUserAgent() {\n    this._userAgent = this.headers[this.getUserAgentHeaderName()] = AWS.util.userAgent();\n  },\n  getUserAgentHeaderName: function getUserAgentHeaderName() {\n    var prefix = AWS.util.isBrowser() ? 'X-Amz-' : '';\n    return prefix + 'User-Agent';\n  },\n\n  /**\n   * @api private\n   */\n  appendToUserAgent: function appendToUserAgent(agentPartial) {\n    if (typeof agentPartial === 'string' && agentPartial) {\n      this._userAgent += ' ' + agentPartial;\n    }\n\n    this.headers[this.getUserAgentHeaderName()] = this._userAgent;\n  },\n\n  /**\n   * @api private\n   */\n  getUserAgent: function getUserAgent() {\n    return this._userAgent;\n  },\n\n  /**\n   * @return [String] the part of the {path} excluding the\n   *   query string\n   */\n  pathname: function pathname() {\n    return this.path.split('?', 1)[0];\n  },\n\n  /**\n   * @return [String] the query string portion of the {path}\n   */\n  search: function search() {\n    var query = this.path.split('?', 2)[1];\n\n    if (query) {\n      query = AWS.util.queryStringParse(query);\n      return AWS.util.queryParamsToString(query);\n    }\n\n    return '';\n  },\n\n  /**\n   * @api private\n   * update httpRequest endpoint with endpoint string\n   */\n  updateEndpoint: function updateEndpoint(endpointStr) {\n    var newEndpoint = new AWS.Endpoint(endpointStr);\n    this.endpoint = newEndpoint;\n    this.path = newEndpoint.path || '/';\n  }\n});\n/**\n * The low level HTTP response object, encapsulating all HTTP header\n * and body data returned from the request.\n *\n * @!attribute statusCode\n *   @return [Integer] the HTTP status code of the response (e.g., 200, 404)\n * @!attribute headers\n *   @return [map<String,String>]\n *      a map of response header keys and their respective values\n * @!attribute body\n *   @return [String] the response body payload\n * @!attribute [r] streaming\n *   @return [Boolean] whether this response is being streamed at a low-level.\n *     Defaults to `false` (buffered reads). Do not modify this manually, use\n *     {createUnbufferedStream} to convert the stream to unbuffered mode\n *     instead.\n */\n\nAWS.HttpResponse = inherit({\n  /**\n   * @api private\n   */\n  constructor: function HttpResponse() {\n    this.statusCode = undefined;\n    this.headers = {};\n    this.body = undefined;\n    this.streaming = false;\n    this.stream = null;\n  },\n\n  /**\n   * Disables buffering on the HTTP response and returns the stream for reading.\n   * @return [Stream, XMLHttpRequest, null] the underlying stream object.\n   *   Use this object to directly read data off of the stream.\n   * @note This object is only available after the {AWS.Request~httpHeaders}\n   *   event has fired. This method must be called prior to\n   *   {AWS.Request~httpData}.\n   * @example Taking control of a stream\n   *   request.on('httpHeaders', function(statusCode, headers) {\n   *     if (statusCode < 300) {\n   *       if (headers.etag === 'xyz') {\n   *         // pipe the stream, disabling buffering\n   *         var stream = this.response.httpResponse.createUnbufferedStream();\n   *         stream.pipe(process.stdout);\n   *       } else { // abort this request and set a better error message\n   *         this.abort();\n   *         this.response.error = new Error('Invalid ETag');\n   *       }\n   *     }\n   *   }).send(console.log);\n   */\n  createUnbufferedStream: function createUnbufferedStream() {\n    this.streaming = true;\n    return this.stream;\n  }\n});\nAWS.HttpClient = inherit({});\n/**\n * @api private\n */\n\nAWS.HttpClient.getInstance = function getInstance() {\n  if (this.singleton === undefined) {\n    this.singleton = new this();\n  }\n\n  return this.singleton;\n};","var AWS = require('./core');\n\nvar util = require('./util');\n\nvar endpointDiscoveryEnabledEnvs = ['AWS_ENABLE_ENDPOINT_DISCOVERY', 'AWS_ENDPOINT_DISCOVERY_ENABLED'];\n/**\n * Generate key (except resources and operation part) to index the endpoints in the cache\n * If input shape has endpointdiscoveryid trait then use\n *   accessKey + operation + resources + region + service as cache key\n * If input shape doesn't have endpointdiscoveryid trait then use\n *   accessKey + region + service as cache key\n * @return [map<String,String>] object with keys to index endpoints.\n * @api private\n */\n\nfunction getCacheKey(request) {\n  var service = request.service;\n  var api = service.api || {};\n  var operations = api.operations;\n  var identifiers = {};\n\n  if (service.config.region) {\n    identifiers.region = service.config.region;\n  }\n\n  if (api.serviceId) {\n    identifiers.serviceId = api.serviceId;\n  }\n\n  if (service.config.credentials.accessKeyId) {\n    identifiers.accessKeyId = service.config.credentials.accessKeyId;\n  }\n\n  return identifiers;\n}\n/**\n * Recursive helper for marshallCustomIdentifiers().\n * Looks for required string input members that have 'endpointdiscoveryid' trait.\n * @api private\n */\n\n\nfunction marshallCustomIdentifiersHelper(result, params, shape) {\n  if (!shape || params === undefined || params === null) return;\n\n  if (shape.type === 'structure' && shape.required && shape.required.length > 0) {\n    util.arrayEach(shape.required, function (name) {\n      var memberShape = shape.members[name];\n\n      if (memberShape.endpointDiscoveryId === true) {\n        var locationName = memberShape.isLocationName ? memberShape.name : name;\n        result[locationName] = String(params[name]);\n      } else {\n        marshallCustomIdentifiersHelper(result, params[name], memberShape);\n      }\n    });\n  }\n}\n/**\n * Get custom identifiers for cache key.\n * Identifies custom identifiers by checking each shape's `endpointDiscoveryId` trait.\n * @param [object] request object\n * @param [object] input shape of the given operation's api\n * @api private\n */\n\n\nfunction marshallCustomIdentifiers(request, shape) {\n  var identifiers = {};\n  marshallCustomIdentifiersHelper(identifiers, request.params, shape);\n  return identifiers;\n}\n/**\n * Call endpoint discovery operation when it's optional.\n * When endpoint is available in cache then use the cached endpoints. If endpoints\n * are unavailable then use regional endpoints and call endpoint discovery operation\n * asynchronously. This is turned off by default.\n * @param [object] request object\n * @api private\n */\n\n\nfunction optionalDiscoverEndpoint(request) {\n  var service = request.service;\n  var api = service.api;\n  var operationModel = api.operations ? api.operations[request.operation] : undefined;\n  var inputShape = operationModel ? operationModel.input : undefined;\n  var identifiers = marshallCustomIdentifiers(request, inputShape);\n  var cacheKey = getCacheKey(request);\n\n  if (Object.keys(identifiers).length > 0) {\n    cacheKey = util.update(cacheKey, identifiers);\n    if (operationModel) cacheKey.operation = operationModel.name;\n  }\n\n  var endpoints = AWS.endpointCache.get(cacheKey);\n\n  if (endpoints && endpoints.length === 1 && endpoints[0].Address === '') {\n    //endpoint operation is being made but response not yet received\n    //or endpoint operation just failed in 1 minute\n    return;\n  } else if (endpoints && endpoints.length > 0) {\n    //found endpoint record from cache\n    request.httpRequest.updateEndpoint(endpoints[0].Address);\n  } else {\n    //endpoint record not in cache or outdated. make discovery operation\n    var endpointRequest = service.makeRequest(api.endpointOperation, {\n      Operation: operationModel.name,\n      Identifiers: identifiers\n    });\n    addApiVersionHeader(endpointRequest);\n    endpointRequest.removeListener('validate', AWS.EventListeners.Core.VALIDATE_PARAMETERS);\n    endpointRequest.removeListener('retry', AWS.EventListeners.Core.RETRY_CHECK); //put in a placeholder for endpoints already requested, prevent\n    //too much in-flight calls\n\n    AWS.endpointCache.put(cacheKey, [{\n      Address: '',\n      CachePeriodInMinutes: 1\n    }]);\n    endpointRequest.send(function (err, data) {\n      if (data && data.Endpoints) {\n        AWS.endpointCache.put(cacheKey, data.Endpoints);\n      } else if (err) {\n        AWS.endpointCache.put(cacheKey, [{\n          Address: '',\n          CachePeriodInMinutes: 1 //not to make more endpoint operation in next 1 minute\n\n        }]);\n      }\n    });\n  }\n}\n\nvar requestQueue = {};\n/**\n * Call endpoint discovery operation when it's required.\n * When endpoint is available in cache then use cached ones. If endpoints are\n * unavailable then SDK should call endpoint operation then use returned new\n * endpoint for the api call. SDK will automatically attempt to do endpoint\n * discovery. This is turned off by default\n * @param [object] request object\n * @api private\n */\n\nfunction requiredDiscoverEndpoint(request, done) {\n  var service = request.service;\n  var api = service.api;\n  var operationModel = api.operations ? api.operations[request.operation] : undefined;\n  var inputShape = operationModel ? operationModel.input : undefined;\n  var identifiers = marshallCustomIdentifiers(request, inputShape);\n  var cacheKey = getCacheKey(request);\n\n  if (Object.keys(identifiers).length > 0) {\n    cacheKey = util.update(cacheKey, identifiers);\n    if (operationModel) cacheKey.operation = operationModel.name;\n  }\n\n  var cacheKeyStr = AWS.EndpointCache.getKeyString(cacheKey);\n  var endpoints = AWS.endpointCache.get(cacheKeyStr); //endpoint cache also accepts string keys\n\n  if (endpoints && endpoints.length === 1 && endpoints[0].Address === '') {\n    //endpoint operation is being made but response not yet received\n    //push request object to a pending queue\n    if (!requestQueue[cacheKeyStr]) requestQueue[cacheKeyStr] = [];\n    requestQueue[cacheKeyStr].push({\n      request: request,\n      callback: done\n    });\n    return;\n  } else if (endpoints && endpoints.length > 0) {\n    request.httpRequest.updateEndpoint(endpoints[0].Address);\n    done();\n  } else {\n    var endpointRequest = service.makeRequest(api.endpointOperation, {\n      Operation: operationModel.name,\n      Identifiers: identifiers\n    });\n    endpointRequest.removeListener('validate', AWS.EventListeners.Core.VALIDATE_PARAMETERS);\n    addApiVersionHeader(endpointRequest); //put in a placeholder for endpoints already requested, prevent\n    //too much in-flight calls\n\n    AWS.endpointCache.put(cacheKeyStr, [{\n      Address: '',\n      CachePeriodInMinutes: 60 //long-live cache\n\n    }]);\n    endpointRequest.send(function (err, data) {\n      if (err) {\n        var errorParams = {\n          code: 'EndpointDiscoveryException',\n          message: 'Request cannot be fulfilled without specifying an endpoint',\n          retryable: false\n        };\n        request.response.error = util.error(err, errorParams);\n        AWS.endpointCache.remove(cacheKey); //fail all the pending requests in batch\n\n        if (requestQueue[cacheKeyStr]) {\n          var pendingRequests = requestQueue[cacheKeyStr];\n          util.arrayEach(pendingRequests, function (requestContext) {\n            requestContext.request.response.error = util.error(err, errorParams);\n            requestContext.callback();\n          });\n          delete requestQueue[cacheKeyStr];\n        }\n      } else if (data) {\n        AWS.endpointCache.put(cacheKeyStr, data.Endpoints);\n        request.httpRequest.updateEndpoint(data.Endpoints[0].Address); //update the endpoint for all the pending requests in batch\n\n        if (requestQueue[cacheKeyStr]) {\n          var pendingRequests = requestQueue[cacheKeyStr];\n          util.arrayEach(pendingRequests, function (requestContext) {\n            requestContext.request.httpRequest.updateEndpoint(data.Endpoints[0].Address);\n            requestContext.callback();\n          });\n          delete requestQueue[cacheKeyStr];\n        }\n      }\n\n      done();\n    });\n  }\n}\n/**\n * add api version header to endpoint operation\n * @api private\n */\n\n\nfunction addApiVersionHeader(endpointRequest) {\n  var api = endpointRequest.service.api;\n  var apiVersion = api.apiVersion;\n\n  if (apiVersion && !endpointRequest.httpRequest.headers['x-amz-api-version']) {\n    endpointRequest.httpRequest.headers['x-amz-api-version'] = apiVersion;\n  }\n}\n/**\n * If api call gets invalid endpoint exception, SDK should attempt to remove the invalid\n * endpoint from cache.\n * @api private\n */\n\n\nfunction invalidateCachedEndpoints(response) {\n  var error = response.error;\n  var httpResponse = response.httpResponse;\n\n  if (error && (error.code === 'InvalidEndpointException' || httpResponse.statusCode === 421)) {\n    var request = response.request;\n    var operations = request.service.api.operations || {};\n    var inputShape = operations[request.operation] ? operations[request.operation].input : undefined;\n    var identifiers = marshallCustomIdentifiers(request, inputShape);\n    var cacheKey = getCacheKey(request);\n\n    if (Object.keys(identifiers).length > 0) {\n      cacheKey = util.update(cacheKey, identifiers);\n      if (operations[request.operation]) cacheKey.operation = operations[request.operation].name;\n    }\n\n    AWS.endpointCache.remove(cacheKey);\n  }\n}\n/**\n * If endpoint is explicitly configured, SDK should not do endpoint discovery in anytime.\n * @param [object] client Service client object.\n * @api private\n */\n\n\nfunction hasCustomEndpoint(client) {\n  //if set endpoint is set for specific client, enable endpoint discovery will raise an error.\n  if (client._originalConfig && client._originalConfig.endpoint && client._originalConfig.endpointDiscoveryEnabled === true) {\n    throw util.error(new Error(), {\n      code: 'ConfigurationException',\n      message: 'Custom endpoint is supplied; endpointDiscoveryEnabled must not be true.'\n    });\n  }\n\n  ;\n  var svcConfig = AWS.config[client.serviceIdentifier] || {};\n  return Boolean(AWS.config.endpoint || svcConfig.endpoint || client._originalConfig && client._originalConfig.endpoint);\n}\n/**\n * @api private\n */\n\n\nfunction isFalsy(value) {\n  return ['false', '0'].indexOf(value) >= 0;\n}\n/**\n * If endpoint discovery should perform for this request when endpoint discovery is optional.\n * SDK performs config resolution in order like below:\n * 1. If turned on client configuration(default to off) then turn on endpoint discovery.\n * 2. If turned on in env AWS_ENABLE_ENDPOINT_DISCOVERY then turn on endpoint discovery.\n * 3. If turned on in shared ini config file with key 'endpoint_discovery_enabled', then\n *   turn on endpoint discovery.\n * @param [object] request request object.\n * @api private\n */\n\n\nfunction isEndpointDiscoveryApplicable(request) {\n  var service = request.service || {};\n  if (service.config.endpointDiscoveryEnabled === true) return true; //shared ini file is only available in Node\n  //not to check env in browser\n\n  if (util.isBrowser()) return false;\n\n  for (var i = 0; i < endpointDiscoveryEnabledEnvs.length; i++) {\n    var env = endpointDiscoveryEnabledEnvs[i];\n\n    if (Object.prototype.hasOwnProperty.call(process.env, env)) {\n      if (process.env[env] === '' || process.env[env] === undefined) {\n        throw util.error(new Error(), {\n          code: 'ConfigurationException',\n          message: 'environmental variable ' + env + ' cannot be set to nothing'\n        });\n      }\n\n      if (!isFalsy(process.env[env])) return true;\n    }\n  }\n\n  var configFile = {};\n\n  try {\n    configFile = AWS.util.iniLoader ? AWS.util.iniLoader.loadFrom({\n      isConfig: true,\n      filename: process.env[AWS.util.sharedConfigFileEnv]\n    }) : {};\n  } catch (e) {}\n\n  var sharedFileConfig = configFile[process.env.AWS_PROFILE || AWS.util.defaultProfile] || {};\n\n  if (Object.prototype.hasOwnProperty.call(sharedFileConfig, 'endpoint_discovery_enabled')) {\n    if (sharedFileConfig.endpoint_discovery_enabled === undefined) {\n      throw util.error(new Error(), {\n        code: 'ConfigurationException',\n        message: 'config file entry \\'endpoint_discovery_enabled\\' cannot be set to nothing'\n      });\n    }\n\n    if (!isFalsy(sharedFileConfig.endpoint_discovery_enabled)) return true;\n  }\n\n  return false;\n}\n/**\n * attach endpoint discovery logic to request object\n * @param [object] request\n * @api private\n */\n\n\nfunction discoverEndpoint(request, done) {\n  var service = request.service || {};\n  if (hasCustomEndpoint(service) || request.isPresigned()) return done();\n  if (!isEndpointDiscoveryApplicable(request)) return done();\n  request.httpRequest.appendToUserAgent('endpoint-discovery');\n  var operations = service.api.operations || {};\n  var operationModel = operations[request.operation];\n  var isEndpointDiscoveryRequired = operationModel ? operationModel.endpointDiscoveryRequired : 'NULL';\n\n  switch (isEndpointDiscoveryRequired) {\n    case 'OPTIONAL':\n      optionalDiscoverEndpoint(request);\n      request.addNamedListener('INVALIDATE_CACHED_ENDPOINTS', 'extractError', invalidateCachedEndpoints);\n      done();\n      break;\n\n    case 'REQUIRED':\n      request.addNamedListener('INVALIDATE_CACHED_ENDPOINTS', 'extractError', invalidateCachedEndpoints);\n      requiredDiscoverEndpoint(request, done);\n      break;\n\n    case 'NULL':\n    default:\n      done();\n      break;\n  }\n}\n\nmodule.exports = {\n  discoverEndpoint: discoverEndpoint,\n  requiredDiscoverEndpoint: requiredDiscoverEndpoint,\n  optionalDiscoverEndpoint: optionalDiscoverEndpoint,\n  marshallCustomIdentifiers: marshallCustomIdentifiers,\n  getCacheKey: getCacheKey,\n  invalidateCachedEndpoint: invalidateCachedEndpoints\n};"],"sourceRoot":""}