text: /*
   * client.js: Base client from which all AWS clients inherit from
   *
   * (C) 2012 Nodejitsu Inc.
   *
   */
  
  var util = require('util'),
      AWS = require('aws-sdk'),
      base = require('../core/base');
  
  var userAgent = AWS.util.userAgent();
  var Client = exports.Client = function (options) {
    var self = this;
  
    base.Client.call(this, options);
  
    options = options || {};
  
    // Allow overriding serversUrl in child classes
    this.provider   = 'amazon';
    this.securityGroup = options.securityGroup;
    this.securityGroupId = options.securityGroupId;
    this.version = options.version || '2014-06-15';
    this.protocol = options.protocol || 'https://';
    this.serversUrl = options.serversUrl
      || this.serversUrl
      || 'ec2.amazonaws.com';
  
    // support either key/accessKey syntax
    this.config.key = this.config.key || options.accessKey;
    this.config.keyId = this.config.keyId || options.accessKeyId;
  
    // Configure amazon client
    AWS.config.update({ accessKeyId: this.config.keyId, secretAccessKey: this.config.key });
    AWS.config.update({ region: options.region });
  
    // TODO think about a proxy option for pkgcloud
    // enable forwarding to mock test server
    if (options.serversUrl) {
      AWS.config.update({
        httpOptions: {
          proxy: options.protocol ? options.protocol + options.serversUrl : 'https://' + options.serversUrl
        }
      });
    }
  
    this.userAgent = util.format('%s %s', self.getUserAgent(), userAgent);
  
    // Setup a custom user agent for pkgcloud
    AWS.util.userAgent = function () {
      return self.userAgent;
    };
  
    if (!this.before) {
      this.before = [];
    }
  };
  
  util.inherits(Client, base.Client);
  
  Client.prototype._toArray = function toArray(obj) {
    if (typeof obj === 'undefined') {
      return [];
    }
  
    return Array.isArray(obj) ? obj : [obj];
  };
  
  Client.prototype.failCodes = {
    400: 'Bad Request',
    401: 'Unauthorized',
    403: 'Resize not allowed',
    404: 'Item not found',
    409: 'Build in progress',
    413: 'Over Limit',
    415: 'Bad Media Type',
    500: 'Fault',
    503: 'Service Unavailable'
  };
  
  Client.prototype.successCodes = {
    200: 'OK',
    201: 'Created',
    202: 'Accepted',
    203: 'Non-authoritative information',
    204: 'No content'
  };
  