text: /**
   * Module dependencies.
   */
  var uri = require('url'),
      util = require('util'),
      OAuth2Strategy = require('passport-oauth2'),
      InternalOAuthError = require('passport-oauth2').InternalOAuthError,
      KeyleadAuthorizationError = require('./errors/keyleadauthorizationerror'),
      KeyleadTokenError = require('./errors/keyleadtokenerror');
  
  
  /**
   * `Strategy` constructor.
   *
   * The Keylead authentication strategy authenticates requests by delegating to
   * Keylead using the OAuth 2.0 protocol.
   *
   * Applications must supply a `verify` callback which accepts an `accessToken`,
   * `refreshToken` and service-specific `profile`, and then calls the `done`
   * callback supplying a `user`, which should be set to `false` if the
   * credentials are not valid.  If an exception occured, `err` should be set.
   *
   * Options:
   *   - `clientID`      your Keylead application's App ID
   *   - `clientSecret`  your Keylead application's App Secret
   *   - `callbackURL`   URL to which Keylead will redirect the user after granting authorization
   *
   * Examples:
   *
   *     passport.use(new KeyleadStrategy({
   *         clientID: '123-456-789',
   *         clientSecret: 'shhh-its-a-secret'
   *         callbackURL: 'https://www.example.net/auth/keylead/callback'
   *       },
   *       function(accessToken, refreshToken, profile, done) {
   *         User.findOrCreate(..., function (err, user) {
   *           done(err, user);
   *         });
   *       }
   *     ));
   *
   * @param {Object} options
   * @param {Function} verify
   * @api public
   */
  function Strategy(options, verify) {
      options = options || {};
      options.authorizationURL = options.authorizationURL || 'https://api.finnotech.ir/dev/v1/oauth2/authorize';
      options.tokenURL = options.tokenURL || 'https://api.finnotech.ir/dev/v1/oauth2/token';
      options.scope = options.scope || 'kilid:statement:get';
      options.scopeSeparator = options.scopeSeparator || ',';
      options.callbackURL = options.callbackURL || '';
  
      var authString = new Buffer(options.clientID+':'+options.clientSecret);
      options.customHeaders = {
          "Authorization": "Basic " + authString.toString('base64')
      };
      function customVerify (accessToken, refreshToken, params, profile, done) {
          console.log(1);
          var depositNumbers = [];
          for (var i = 0 ; i <accessToken.deposits.length ; i++ ) {
              var deposit = accessToken.deposits[i];
              for (var j = 0; j < deposit.resources.length; j++)
                  depositNumbers.push(deposit.resources[j]);
          }
          profile.scope = accessToken.scopes.toString();
          profile.scopes = accessToken.scopes;
          profile.depositNumbers  = depositNumbers;
          profile.refreshToken  = accessToken.refreshToken;
          profile.customerId  = accessToken.userId;
          profile.accessToken  = accessToken.value;
          profile.expierTime = accessToken.lifeTime;
          profile.provider = 'keylead';
          profile.bankId = 'AYANDEH';
          verify(accessToken.value, profile, done);
      };
  
      OAuth2Strategy.call(this, options, customVerify);
      this.name = 'keylead';
      this._clientSecret = options.clientSecret;
  
  }
  
  /**
   * Inherit from `OAuth2Strategy`.
   */
  util.inherits(Strategy, OAuth2Strategy);
  
  
  /**
   * Authenticate request by delegating to Keylead using OAuth 2.0.
   *
   * @param {Object} req
   * @param {Object} options
   * @api protected
   */
  Strategy.prototype.authenticate = function(req, options) {
      // Keylead doesn't conform to the OAuth 2.0 specification, with respect to
      // redirecting with error codes.
      //
      //   FIX: https://github.com/jaredhanson/passport-oauth/issues/16
      console.log(2);
      if (req.query && req.query.error_code && !req.query.error) {
          return this.error(new KeyleadAuthorizationError(req.query.error_message, parseInt(req.query.error_code, 10)));
      }
  
      OAuth2Strategy.prototype.authenticate.call(this, req, options);
  };
  
  
  /**
   * Parse error response from Keylead OAuth 2.0 token endpoint.
   *
   * @param {String} body
   * @param {Number} status
   * @return {Error}
   * @api protected
   */
  Strategy.prototype.parseErrorResponse = function(body, status) {
      console.log(3);
      var json = JSON.parse(body);
      if (json.error && typeof json.error == 'object') {
          return new KeyleadTokenError(json.error.message, json.error.type, json.error.code, json.error.error_subcode);
      }
  
      return OAuth2Strategy.prototype.parseErrorResponse.call(this, body, status);
  };
  
  /**
   * Expose `Strategy`.
   */
  module.exports = Strategy;
  