@omneedia/socketcluster/sample/node_modules/socketcluster-client/socketcluster.js

SocketCluster - A Highly parallelized WebSocket server cluster to make the most of multi-core machines/instances.

/**
 * SocketCluster JavaScript client v14.2.2
 */
(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.socketCluster = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(_dereq_,module,exports){
var SCClientSocket = _dereq_('./lib/scclientsocket');
var factory = _dereq_('./lib/factory');

module.exports.factory = factory;
module.exports.SCClientSocket = SCClientSocket;

module.exports.Emitter = _dereq_('component-emitter');

module.exports.create = function (options) {
  return factory.create(options);
};

module.exports.connect = module.exports.create;

module.exports.destroy = function (socket) {
  return factory.destroy(socket);
};

module.exports.clients = factory.clients;

module.exports.version = '14.2.2';

},{"./lib/factory":3,"./lib/scclientsocket":5,"component-emitter":11}],2:[function(_dereq_,module,exports){
(function (global){
var AuthEngine = function () {
  this._internalStorage = {};
  this.isLocalStorageEnabled = this._checkLocalStorageEnabled();
};

AuthEngine.prototype._checkLocalStorageEnabled = function () {
  var err;
  try {
    // Some browsers will throw an error here if localStorage is disabled.
    global.localStorage;

    // Safari, in Private Browsing Mode, looks like it supports localStorage but all calls to setItem
    // throw QuotaExceededError. We're going to detect this and avoid hard to debug edge cases.
    global.localStorage.setItem('__scLocalStorageTest', 1);
    global.localStorage.removeItem('__scLocalStorageTest');
  } catch (e) {
    err = e;
  }
  return !err;
};

AuthEngine.prototype.saveToken = function (name, token, options, callback) {
  if (this.isLocalStorageEnabled && global.localStorage) {
    global.localStorage.setItem(name, token);
  } else {
    this._internalStorage[name] = token;
  }
  callback && callback(null, token);
};

AuthEngine.prototype.removeToken = function (name, callback) {
  var token;

  this.loadToken(name, function (err, authToken) {
    token = authToken;
  });

  if (this.isLocalStorageEnabled && global.localStorage) {
    global.localStorage.removeItem(name);
  } else {
    delete this._internalStorage[name];
  }

  callback && callback(null, token);
};

AuthEngine.prototype.loadToken = function (name, callback) {
  var token;

  if (this.isLocalStorageEnabled && global.localStorage) {
    token = global.localStorage.getItem(name);
  } else {
    token = this._internalStorage[name] || null;
  }
  callback(null, token);
};

module.exports.AuthEngine = AuthEngine;

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],3:[function(_dereq_,module,exports){
(function (global){
var SCClientSocket = _dereq_('./scclientsocket');
var scErrors = _dereq_('sc-errors');
var uuid = _dereq_('uuid');
var InvalidArgumentsError = scErrors.InvalidArgumentsError;

var _clients = {};

function getMultiplexId(options) {
  var protocolPrefix = options.secure ? 'https://' : 'http://';
  var queryString = '';
  if (options.query) {
    if (typeof options.query === 'string') {
      queryString = options.query;
    } else {
      var queryArray = [];
      var queryMap = options.query;
      for (var key in queryMap) {
        if (queryMap.hasOwnProperty(key)) {
          queryArray.push(key + '=' + queryMap[key]);
        }
      }
      if (queryArray.length) {
        queryString = '?' + queryArray.join('&');
      }
    }
  }
  var host;
  if (options.host) {
    host = options.host;
  } else {
    host = options.hostname + ':' + options.port;
  }
  return protocolPrefix + host + options.path + queryString;
}

function isUrlSecure() {
  return global.location && location.protocol === 'https:';
}

function getPort(options, isSecureDefault) {
  var isSecure = options.secure == null ? isSecureDefault : options.secure;
  return options.port || (global.location && location.port ? location.port : isSecure ? 443 : 80);
}

function create(options) {
  var self = this;

  options = options || {};

  if (options.host && !options.host.match(/[^:]+:\d{2,5}/)) {
    throw new InvalidArgumentsError('The host option should include both' +
      ' the hostname and the port number in the format "hostname:port"');
  }

  if (options.host && options.hostname) {
    throw new InvalidArgumentsError('The host option should already include' +
      ' the hostname and the port number in the format "hostname:port"' +
      ' - Because of this, you should never use host and hostname options together');
  }

  if (options.host && options.port) {
    throw new InvalidArgumentsError('The host option should already include' +
      ' the hostname and the port number in the format "hostname:port"' +
      ' - Because of this, you should never use host and port options together');
  }

  var isSecureDefault = isUrlSecure();

  var opts = {
    port: getPort(options, isSecureDefault),
    hostname: global.location && location.hostname || 'localhost',
    path: '/socketcluster/',
    secure: isSecureDefault,
    autoConnect: true,
    autoReconnect: true,
    autoSubscribeOnConnect: true,
    connectTimeout: 20000,
    ackTimeout: 10000,
    timestampRequests: false,
    timestampParam: 't',
    authEngine: null,
    authTokenName: 'socketCluster.authToken',
    binaryType: 'arraybuffer',
    multiplex: true,
    pubSubBatchDuration: null,
    cloneData: false
  };
  for (var i in options) {
    if (options.hasOwnProperty(i)) {
      opts[i] = options[i];
    }
  }
  opts.clientMap = _clients;

  if (opts.multiplex === false) {
    opts.clientId = uuid.v4();
    var socket = new SCClientSocket(opts);
    _clients[opts.clientId] = socket;
    return socket;
  }
  opts.clientId = getMultiplexId(opts);

  if (_clients[opts.clientId]) {
    if (opts.autoConnect) {
      _clients[opts.clientId].connect();
    }
  } else {
    _clients[opts.clientId] = new SCClientSocket(opts);
  }
  return _clients[opts.clientId];
}

function destroy(socket) {
  socket.destroy();
}

module.exports = {
  create: create,
  destroy: destroy,
  clients: _clients
};

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./scclientsocket":5,"sc-errors":20,"uuid":22}],4:[function(_dereq_,module,exports){
var scErrors = _dereq_('sc-errors');
var InvalidActionError = scErrors.InvalidActionError;

var Response = function (socket, id) {
  this.socket = socket;
  this.id = id;
  this.sent = false;
};

Response.prototype._respond = function (responseData) {
  if (this.sent) {
    throw new InvalidActionError('Response ' + this.id + ' has already been sent');
  } else {
    this.sent = true;
    this.socket.send(this.socket.encode(responseData));
  }
};

Response.prototype.end = function (data) {
  if (this.id) {
    var responseData = {
      rid: this.id
    };
    if (data !== undefined) {
      responseData.data = data;
    }
    this._respond(responseData);
  }
};

Response.prototype.error = function (error, data) {
  if (this.id) {
    var err = scErrors.dehydrateError(error);

    var responseData = {
      rid: this.id,
      error: err
    };
    if (data !== undefined) {
      responseData.data = data;
    }

    this._respond(responseData);
  }
};

Response.prototype.callback = function (error, data) {
  if (error) {
    this.error(error, data);
  } else {
    this.end(data);
  }
};

module.exports.Response = Response;

},{"sc-errors":20}],5:[function(_dereq_,module,exports){
(function (global){
var Emitter = _dereq_('component-emitter');
var SCChannel = _dereq_('sc-channel').SCChannel;
var Response = _dereq_('./response').Response;
var AuthEngine = _dereq_('./auth').AuthEngine;
var formatter = _dereq_('sc-formatter');
var SCTransport = _dereq_('./sctransport').SCTransport;
var querystring = _dereq_('querystring');
var LinkedList = _dereq_('linked-list');
var Buffer = _dereq_('buffer/').Buffer;
var clone = _dereq_('clone');

var scErrors = _dereq_('sc-errors');
var InvalidArgumentsError = scErrors.InvalidArgumentsError;
var InvalidMessageError = scErrors.InvalidMessageError;
var InvalidActionError = scErrors.InvalidActionError;
var SocketProtocolError = scErrors.SocketProtocolError;
var TimeoutError = scErrors.TimeoutError;
var BadConnectionError = scErrors.BadConnectionError;

var isBrowser = typeof window !== 'undefined';


var SCClientSocket = function (opts) {
  var self = this;

  Emitter.call(this);

  this.id = null;
  this.state = this.CLOSED;
  this.authState = this.UNAUTHENTICATED;
  this.signedAuthToken = null;
  this.authToken = null;
  this.pendingReconnect = false;
  this.pendingReconnectTimeout = null;
  this.preparingPendingSubscriptions = false;
  this.clientId = opts.clientId;

  this.connectTimeout = opts.connectTimeout;
  this.ackTimeout = opts.ackTimeout;
  this.channelPrefix = opts.channelPrefix || null;
  this.disconnectOnUnload = opts.disconnectOnUnload == null ? true : opts.disconnectOnUnload;
  this.authTokenName = opts.authTokenName;

  // pingTimeout will be ackTimeout at the start, but it will
  // be updated with values provided by the 'connect' event
  this.pingTimeout = this.ackTimeout;
  this.pingTimeoutDisabled = !!opts.pingTimeoutDisabled;
  this.active = true;

  this._clientMap = opts.clientMap || {};

  var maxTimeout = Math.pow(2, 31) - 1;

  var verifyDuration = function (propertyName) {
    if (self[propertyName] > maxTimeout) {
      throw new InvalidArgumentsError('The ' + propertyName +
        ' value provided exceeded the maximum amount allowed');
    }
  };

  verifyDuration('connectTimeout');
  verifyDuration('ackTimeout');

  this._localEvents = {
    'connect': 1,
    'connectAbort': 1,
    'close': 1,
    'disconnect': 1,
    'message': 1,
    'error': 1,
    'raw': 1,
    'kickOut': 1,
    'subscribe': 1,
    'unsubscribe': 1,
    'subscribeStateChange': 1,
    'authStateChange': 1,
    'authenticate': 1,
    'deauthenticate': 1,
    'removeAuthToken': 1,
    'subscribeRequest': 1
  };

  this.connectAttempts = 0;

  this._emitBuffer = new LinkedList();
  this.channels = {};

  this.options = opts;

  this._cid = 1;

  this.options.callIdGenerator = function () {
    return self._cid++;
  };

  if (this.options.autoReconnect) {
    if (this.options.autoReconnectOptions == null) {
      this.options.autoReconnectOptions = {};
    }

    // Add properties to the this.options.autoReconnectOptions object.
    // We assign the reference to a reconnectOptions variable to avoid repetition.
    var reconnectOptions = this.options.autoReconnectOptions;
    if (reconnectOptions.initialDelay == null) {
      reconnectOptions.initialDelay = 10000;
    }
    if (reconnectOptions.randomness == null) {
      reconnectOptions.randomness = 10000;
    }
    if (reconnectOptions.multiplier == null) {
      reconnectOptions.multiplier = 1.5;
    }
    if (reconnectOptions.maxDelay == null) {
      reconnectOptions.maxDelay = 60000;
    }
  }

  if (this.options.subscriptionRetryOptions == null) {
    this.options.subscriptionRetryOptions = {};
  }

  if (this.options.authEngine) {
    this.auth = this.options.authEngine;
  } else {
    this.auth = new AuthEngine();
  }

  if (this.options.codecEngine) {
    this.codec = this.options.codecEngine;
  } else {
    // Default codec engine
    this.codec = formatter;
  }

  if (this.options.protocol) {
    var protocolOptionError = new InvalidArgumentsError('The "protocol" option' +
      ' does not affect socketcluster-client. If you want to utilize SSL/TLS' +
      ' - use "secure" option instead');
    this._onSCError(protocolOptionError);
  }

  this.options.path = this.options.path.replace(/\/$/, '') + '/';

  this.options.query = opts.query || {};
  if (typeof this.options.query === 'string') {
    this.options.query = querystring.parse(this.options.query);
  }

  this._channelEmitter = new Emitter();

  this._unloadHandler = function () {
    self.disconnect();
  };

  if (isBrowser && this.disconnectOnUnload && global.addEventListener) {
    global.addEventListener('beforeunload', this._unloadHandler, false);
  }
  this._clientMap[this.clientId] = this;

  if (this.options.autoConnect) {
    this.connect();
  }
};

SCClientSocket.prototype = Object.create(Emitter.prototype);

SCClientSocket.CONNECTING = SCClientSocket.prototype.CONNECTING = SCTransport.prototype.CONNECTING;
SCClientSocket.OPEN = SCClientSocket.prototype.OPEN = SCTransport.prototype.OPEN;
SCClientSocket.CLOSED = SCClientSocket.prototype.CLOSED = SCTransport.prototype.CLOSED;

SCClientSocket.AUTHENTICATED = SCClientSocket.prototype.AUTHENTICATED = 'authenticated';
SCClientSocket.UNAUTHENTICATED = SCClientSocket.prototype.UNAUTHENTICATED = 'unauthenticated';

SCClientSocket.PENDING = SCClientSocket.prototype.PENDING = 'pending';

SCClientSocket.ignoreStatuses = scErrors.socketProtocolIgnoreStatuses;
SCClientSocket.errorStatuses = scErrors.socketProtocolErrorStatuses;

SCClientSocket.prototype._privateEventHandlerMap = {
  '#publish': function (data) {
    var undecoratedChannelName = this._undecorateChannelName(data.channel);
    var isSubscribed = this.isSubscribed(undecoratedChannelName, true);

    if (isSubscribed) {
      this._channelEmitter.emit(undecoratedChannelName, data.data);
    }
  },
  '#kickOut': function (data) {
    var undecoratedChannelName = this._undecorateChannelName(data.channel);
    var channel = this.channels[undecoratedChannelName];
    if (channel) {
      Emitter.prototype.emit.call(this, 'kickOut', data.message, undecoratedChannelName);
      channel.emit('kickOut', data.message, undecoratedChannelName);
      this._triggerChannelUnsubscribe(channel);
    }
  },
  '#setAuthToken': function (data, response) {
    var self = this;

    if (data) {
      var triggerAuthenticate = function (err) {
        if (err) {
          // This is a non-fatal error, we don't want to close the connection
          // because of this but we do want to notify the server and throw an error
          // on the client.
          response.error(err);
          self._onSCError(err);
        } else {
          self._changeToAuthenticatedState(data.token);
          response.end();
        }
      };

      this.auth.saveToken(this.authTokenName, data.token, {}, triggerAuthenticate);
    } else {
      response.error(new InvalidMessageError('No token data provided by #setAuthToken event'));
    }
  },
  '#removeAuthToken': function (data, response) {
    var self = this;

    this.auth.removeToken(this.authTokenName, function (err, oldToken) {
      if (err) {
        // Non-fatal error - Do not close the connection
        response.error(err);
        self._onSCError(err);
      } else {
        Emitter.prototype.emit.call(self, 'removeAuthToken', oldToken);
        self._changeToUnauthenticatedStateAndClearTokens();
        response.end();
      }
    });
  },
  '#disconnect': function (data) {
    this.transport.close(data.code, data.data);
  }
};

SCClientSocket.prototype.getState = function () {
  return this.state;
};

SCClientSocket.prototype.getBytesReceived = function () {
  return this.transport.getBytesReceived();
};

SCClientSocket.prototype.deauthenticate = function (callback) {
  var self = this;

  this.auth.removeToken(this.authTokenName, function (err, oldToken) {
    if (err) {
      // Non-fatal error - Do not close the connection
      self._onSCError(err);
    } else {
      Emitter.prototype.emit.call(self, 'removeAuthToken', oldToken);
      if (self.state !== self.CLOSED) {
        self.emit('#removeAuthToken');
      }
      self._changeToUnauthenticatedStateAndClearTokens();
    }
    callback && callback(err);
  });
};

SCClientSocket.prototype.connect = SCClientSocket.prototype.open = function () {
  var self = this;

  if (!this.active) {
    var error = new InvalidActionError('Cannot connect a destroyed client');
    this._onSCError(error);
    return;
  }

  if (this.state === this.CLOSED) {
    this.pendingReconnect = false;
    this.pendingReconnectTimeout = null;
    clearTimeout(this._reconnectTimeoutRef);

    this.state = this.CONNECTING;
    Emitter.prototype.emit.call(this, 'connecting');

    if (this.transport) {
      this.transport.off();
    }

    this.transport = new SCTransport(this.auth, this.codec, this.options);

    this.transport.on('open', function (status) {
      self.state = self.OPEN;
      self._onSCOpen(status);
    });

    this.transport.on('error', function (err) {
      self._onSCError(err);
    });

    this.transport.on('close', function (code, data) {
      self.state = self.CLOSED;
      self._onSCClose(code, data);
    });

    this.transport.on('openAbort', function (code, data) {
      self.state = self.CLOSED;
      self._onSCClose(code, data, true);
    });

    this.transport.on('event', function (event, data, res) {
      self._onSCEvent(event, data, res);
    });
  }
};

SCClientSocket.prototype.reconnect = function (code, data) {
  this.disconnect(code, data);
  this.connect();
};

SCClientSocket.prototype.disconnect = function (code, data) {
  code = code || 1000;

  if (typeof code !== 'number') {
    throw new InvalidArgumentsError('If specified, the code argument must be a number');
  }

  if (this.state === this.OPEN || this.state === this.CONNECTING) {
    this.transport.close(code, data);
  } else {
    this.pendingReconnect = false;
    this.pendingReconnectTimeout = null;
    clearTimeout(this._reconnectTimeoutRef);
  }
};

SCClientSocket.prototype.destroy = function (code, data) {
  if (isBrowser && global.removeEventListener) {
    global.removeEventListener('beforeunload', this._unloadHandler, false);
  }
  this.active = false;
  this.disconnect(code, data);
  delete this._clientMap[this.clientId];
};

SCClientSocket.prototype._changeToUnauthenticatedStateAndClearTokens = function () {
  if (this.authState !== this.UNAUTHENTICATED) {
    var oldState = this.authState;
    var oldSignedToken = this.signedAuthToken;
    this.authState = this.UNAUTHENTICATED;
    this.signedAuthToken = null;
    this.authToken = null;

    var stateChangeData = {
      oldState: oldState,
      newState: this.authState
    };
    Emitter.prototype.emit.call(this, 'authStateChange', stateChangeData);
    Emitter.prototype.emit.call(this, 'deauthenticate', oldSignedToken);
  }
};

SCClientSocket.prototype._changeToAuthenticatedState = function (signedAuthToken) {
  this.signedAuthToken = signedAuthToken;
  this.authToken = this._extractAuthTokenData(signedAuthToken);

  if (this.authState !== this.AUTHENTICATED) {
    var oldState = this.authState;
    this.authState = this.AUTHENTICATED;
    var stateChangeData = {
      oldState: oldState,
      newState: this.authState,
      signedAuthToken: signedAuthToken,
      authToken: this.authToken
    };
    if (!this.preparingPendingSubscriptions) {
      this.processPendingSubscriptions();
    }

    Emitter.prototype.emit.call(this, 'authStateChange', stateChangeData);
  }
  Emitter.prototype.emit.call(this, 'authenticate', signedAuthToken);
};

SCClientSocket.prototype.decodeBase64 = function (encodedString) {
  return Buffer.from(encodedString, 'base64').toString('utf8');
};

SCClientSocket.prototype.encodeBase64 = function (decodedString) {
  return Buffer.from(decodedString, 'utf8').toString('base64');
};

SCClientSocket.prototype._extractAuthTokenData = function (signedAuthToken) {
  var tokenParts = (signedAuthToken || '').split('.');
  var encodedTokenData = tokenParts[1];
  if (encodedTokenData != null) {
    var tokenData = encodedTokenData;
    try {
      tokenData = this.decodeBase64(tokenData);
      return JSON.parse(tokenData);
    } catch (e) {
      return tokenData;
    }
  }
  return null;
};

SCClientSocket.prototype.getAuthToken = function () {
  return this.authToken;
};

SCClientSocket.prototype.getSignedAuthToken = function () {
  return this.signedAuthToken;
};

// Perform client-initiated authentication by providing an encrypted token string.
SCClientSocket.prototype.authenticate = function (signedAuthToken, callback) {
  var self = this;

  this.emit('#authenticate', signedAuthToken, function (err, authStatus) {
    if (authStatus && authStatus.isAuthenticated != null) {
      // If authStatus is correctly formatted (has an isAuthenticated property),
      // then we will rehydrate the authError.
      if (authStatus.authError) {
        authStatus.authError = scErrors.hydrateError(authStatus.authError);
      }
    } else {
      // Some errors like BadConnectionError and TimeoutError will not pass a valid
      // authStatus object to the current function, so we need to create it ourselves.
      authStatus = {
        isAuthenticated: self.authState,
        authError: null
      };
    }
    if (err) {
      if (err.name !== 'BadConnectionError' && err.name !== 'TimeoutError') {
        // In case of a bad/closed connection or a timeout, we maintain the last
        // known auth state since those errors don't mean that the token is invalid.

        self._changeToUnauthenticatedStateAndClearTokens();
      }
      callback && callback(err, authStatus);
    } else {
      self.auth.saveToken(self.authTokenName, signedAuthToken, {}, function (err) {
        if (err) {
          self._onSCError(err);
        }
        if (authStatus.isAuthenticated) {
          self._changeToAuthenticatedState(signedAuthToken);
        } else {
          self._changeToUnauthenticatedStateAndClearTokens();
        }
        callback && callback(err, authStatus);
      });
    }
  });
};

SCClientSocket.prototype._tryReconnect = function (initialDelay) {
  var self = this;

  var exponent = this.connectAttempts++;
  var reconnectOptions = this.options.autoReconnectOptions;
  var timeout;

  if (initialDelay == null || exponent > 0) {
    var initialTimeout = Math.round(reconnectOptions.initialDelay + (reconnectOptions.randomness || 0) * Math.random());

    timeout = Math.round(initialTimeout * Math.pow(reconnectOptions.multiplier, exponent));
  } else {
    timeout = initialDelay;
  }

  if (timeout > reconnectOptions.maxDelay) {
    timeout = reconnectOptions.maxDelay;
  }

  clearTimeout(this._reconnectTimeoutRef);

  this.pendingReconnect = true;
  this.pendingReconnectTimeout = timeout;
  this._reconnectTimeoutRef = setTimeout(function () {
    self.connect();
  }, timeout);
};

SCClientSocket.prototype._onSCOpen = function (status) {
  var self = this;

  this.preparingPendingSubscriptions = true;

  if (status) {
    this.id = status.id;
    this.pingTimeout = status.pingTimeout;
    this.transport.pingTimeout = this.pingTimeout;
    if (status.isAuthenticated) {
      this._changeToAuthenticatedState(status.authToken);
    } else {
      this._changeToUnauthenticatedStateAndClearTokens();
    }
  } else {
    // This can happen if auth.loadToken (in sctransport.js) fails with
    // an error - This means that the signedAuthToken cannot be loaded by
    // the auth engine and therefore, we need to unauthenticate the client.
    this._changeToUnauthenticatedStateAndClearTokens();
  }

  this.connectAttempts = 0;

  if (this.options.autoSubscribeOnConnect) {
    this.processPendingSubscriptions();
  }

  // If the user invokes the callback while in autoSubscribeOnConnect mode, it
  // won't break anything.
  Emitter.prototype.emit.call(this, 'connect', status, function () {
    self.processPendingSubscriptions();
  });

  if (this.state === this.OPEN) {
    this._flushEmitBuffer();
  }
};

SCClientSocket.prototype._onSCError = function (err) {
  var self = this;

  // Throw error in different stack frame so that error handling
  // cannot interfere with a reconnect action.
  setTimeout(function () {
    if (self.listeners('error').length < 1) {
      throw err;
    } else {
      Emitter.prototype.emit.call(self, 'error', err);
    }
  }, 0);
};

SCClientSocket.prototype._suspendSubscriptions = function () {
  var channel, newState;
  for (var channelName in this.channels) {
    if (this.channels.hasOwnProperty(channelName)) {
      channel = this.channels[channelName];
      if (channel.state === channel.SUBSCRIBED ||
        channel.state === channel.PENDING) {

        newState = channel.PENDING;
      } else {
        newState = channel.UNSUBSCRIBED;
      }

      this._triggerChannelUnsubscribe(channel, newState);
    }
  }
};

SCClientSocket.prototype._abortAllPendingEventsDueToBadConnection = function (failureType) {
  var currentNode = this._emitBuffer.head;
  var nextNode;

  while (currentNode) {
    nextNode = currentNode.next;
    var eventObject = currentNode.data;
    clearTimeout(eventObject.timeout);
    delete eventObject.timeout;
    currentNode.detach();
    currentNode = nextNode;

    var callback = eventObject.callback;
    if (callback) {
      delete eventObject.callback;
      var errorMessage = "Event '" + eventObject.event +
        "' was aborted due to a bad connection";
      var error = new BadConnectionError(errorMessage, failureType);
      callback.call(eventObject, error, eventObject);
    }
    // Cleanup any pending response callback in the transport layer too.
    if (eventObject.cid) {
      this.transport.cancelPendingResponse(eventObject.cid);
    }
  }
};

SCClientSocket.prototype._onSCClose = function (code, data, openAbort) {
  var self = this;

  this.id = null;

  if (this.transport) {
    this.transport.off();
  }
  this.pendingReconnect = false;
  this.pendingReconnectTimeout = null;
  clearTimeout(this._reconnectTimeoutRef);

  this._suspendSubscriptions();
  this._abortAllPendingEventsDueToBadConnection(openAbort ? 'connectAbort' : 'disconnect');

  // Try to reconnect
  // on server ping timeout (4000)
  // or on client pong timeout (4001)
  // or on close without status (1005)
  // or on handshake failure (4003)
  // or on handshake rejection (4008)
  // or on socket hung up (1006)
  if (this.options.autoReconnect) {
    if (code === 4000 || code === 4001 || code === 1005) {
      // If there is a ping or pong timeout or socket closes without
      // status, don't wait before trying to reconnect - These could happen
      // if the client wakes up after a period of inactivity and in this case we
      // want to re-establish the connection as soon as possible.
      this._tryReconnect(0);

      // Codes 4500 and above will be treated as permanent disconnects.
      // Socket will not try to auto-reconnect.
    } else if (code !== 1000 && code < 4500) {
      this._tryReconnect();
    }
  }

  if (openAbort) {
    Emitter.prototype.emit.call(self, 'connectAbort', code, data);
  } else {
    Emitter.prototype.emit.call(self, 'disconnect', code, data);
  }
  Emitter.prototype.emit.call(self, 'close', code, data);

  if (!SCClientSocket.ignoreStatuses[code]) {
    var closeMessage;
    if (data) {
      closeMessage = 'Socket connection closed with status code ' + code + ' and reason: ' + data;
    } else {
      closeMessage = 'Socket connection closed with status code ' + code;
    }
    var err = new SocketProtocolError(SCClientSocket.errorStatuses[code] || closeMessage, code);
    this._onSCError(err);
  }
};

SCClientSocket.prototype._onSCEvent = function (event, data, res) {
  var handler = this._privateEventHandlerMap[event];
  if (handler) {
    handler.call(this, data, res);
  } else {
    Emitter.prototype.emit.call(this, event, data, function () {
      res && res.callback.apply(res, arguments);
    });
  }
};

SCClientSocket.prototype.decode = function (message) {
  return this.transport.decode(message);
};

SCClientSocket.prototype.encode = function (object) {
  return this.transport.encode(object);
};

SCClientSocket.prototype._flushEmitBuffer = function () {
  var currentNode = this._emitBuffer.head;
  var nextNode;

  while (currentNode) {
    nextNode = currentNode.next;
    var eventObject = currentNode.data;
    currentNode.detach();
    this.transport.emitObject(eventObject);
    currentNode = nextNode;
  }
};

SCClientSocket.prototype._handleEventAckTimeout = function (eventObject, eventNode) {
  if (eventNode) {
    eventNode.detach();
  }
  delete eventObject.timeout;

  var callback = eventObject.callback;
  if (callback) {
    delete eventObject.callback;
    var error = new TimeoutError("Event response for '" + eventObject.event + "' timed out");
    callback.call(eventObject, error, eventObject);
  }
  // Cleanup any pending response callback in the transport layer too.
  if (eventObject.cid) {
    this.transport.cancelPendingResponse(eventObject.cid);
  }
};

SCClientSocket.prototype._emit = function (event, data, callback) {
  var self = this;

  if (this.state === this.CLOSED) {
    this.connect();
  }
  var eventObject = {
    event: event,
    callback: callback
  };

  var eventNode = new LinkedList.Item();

  if (this.options.cloneData) {
    eventObject.data = clone(data);
  } else {
    eventObject.data = data;
  }
  eventNode.data = eventObject;

  eventObject.timeout = setTimeout(function () {
    self._handleEventAckTimeout(eventObject, eventNode);
  }, this.ackTimeout);

  this._emitBuffer.append(eventNode);
  if (this.state === this.OPEN) {
    this._flushEmitBuffer();
  }
};

SCClientSocket.prototype.send = function (data) {
  this.transport.send(data);
};

SCClientSocket.prototype.emit = function (event, data, callback) {
  if (this._localEvents[event] == null) {
    this._emit(event, data, callback);
  } else if (event === 'error') {
    Emitter.prototype.emit.call(this, event, data);
  } else {
    var error = new InvalidActionError('The "' + event + '" event is reserved and cannot be emitted on a client socket');
    this._onSCError(error);
  }
};

SCClientSocket.prototype.publish = function (channelName, data, callback) {
  var pubData = {
    channel: this._decorateChannelName(channelName),
    data: data
  };
  this.emit('#publish', pubData, callback);
};

SCClientSocket.prototype._triggerChannelSubscribe = function (channel, subscriptionOptions) {
  var channelName = channel.name;

  if (channel.state !== channel.SUBSCRIBED) {
    var oldState = channel.state;
    channel.state = channel.SUBSCRIBED;

    var stateChangeData = {
      channel: channelName,
      oldState: oldState,
      newState: channel.state,
      subscriptionOptions: subscriptionOptions
    };
    channel.emit('subscribeStateChange', stateChangeData);
    channel.emit('subscribe', channelName, subscriptionOptions);
    Emitter.prototype.emit.call(this, 'subscribeStateChange', stateChangeData);
    Emitter.prototype.emit.call(this, 'subscribe', channelName, subscriptionOptions);
  }
};

SCClientSocket.prototype._triggerChannelSubscribeFail = function (err, channel, subscriptionOptions) {
  var channelName = channel.name;
  var meetsAuthRequirements = !channel.waitForAuth || this.authState === this.AUTHENTICATED;

  if (channel.state !== channel.UNSUBSCRIBED && meetsAuthRequirements) {
    channel.state = channel.UNSUBSCRIBED;

    channel.emit('subscribeFail', err, channelName, subscriptionOptions);
    Emitter.prototype.emit.call(this, 'subscribeFail', err, channelName, subscriptionOptions);
  }
};

// Cancel any pending subscribe callback
SCClientSocket.prototype._cancelPendingSubscribeCallback = function (channel) {
  if (channel._pendingSubscriptionCid != null) {
    this.transport.cancelPendingResponse(channel._pendingSubscriptionCid);
    delete channel._pendingSubscriptionCid;
  }
};

SCClientSocket.prototype._decorateChannelName = function (channelName) {
  if (this.channelPrefix) {
    channelName = this.channelPrefix + channelName;
  }
  return channelName;
};

SCClientSocket.prototype._undecorateChannelName = function (decoratedChannelName) {
  if (this.channelPrefix && decoratedChannelName.indexOf(this.channelPrefix) === 0) {
    return decoratedChannelName.replace(this.channelPrefix, '');
  }
  return decoratedChannelName;
};

SCClientSocket.prototype._trySubscribe = function (channel) {
  var self = this;

  var meetsAuthRequirements = !channel.waitForAuth || this.authState === this.AUTHENTICATED;

  // We can only ever have one pending subscribe action at any given time on a channel
  if (this.state === this.OPEN && !this.preparingPendingSubscriptions &&
    channel._pendingSubscriptionCid == null && meetsAuthRequirements) {

    var options = {
      noTimeout: true
    };

    var subscriptionOptions = {
      channel: this._decorateChannelName(channel.name)
    };
    if (channel.waitForAuth) {
      options.waitForAuth = true;
      subscriptionOptions.waitForAuth = options.waitForAuth;
    }
    if (channel.data) {
      subscriptionOptions.data = channel.data;
    }
    if (channel.batch) {
      options.batch = true;
      subscriptionOptions.batch = true;
    }

    channel._pendingSubscriptionCid = this.transport.emit(
      '#subscribe', subscriptionOptions, options,
      function (err) {
        delete channel._pendingSubscriptionCid;
        if (err) {
          self._triggerChannelSubscribeFail(err, channel, subscriptionOptions);
        } else {
          self._triggerChannelSubscribe(channel, subscriptionOptions);
        }
      }
    );
    Emitter.prototype.emit.call(this, 'subscribeRequest', channel.name, subscriptionOptions);
  }
};

SCClientSocket.prototype.subscribe = function (channelName, options) {
  var channel = this.channels[channelName];

  if (!channel) {
    channel = new SCChannel(channelName, this, options);
    this.channels[channelName] = channel;
  } else if (options) {
    channel.setOptions(options);
  }

  if (channel.state === channel.UNSUBSCRIBED) {
    channel.state = channel.PENDING;
    this._trySubscribe(channel);
  }

  return channel;
};

SCClientSocket.prototype._triggerChannelUnsubscribe = function (channel, newState) {
  var channelName = channel.name;
  var oldState = channel.state;

  if (newState) {
    channel.state = newState;
  } else {
    channel.state = channel.UNSUBSCRIBED;
  }
  this._cancelPendingSubscribeCallback(channel);

  if (oldState === channel.SUBSCRIBED) {
    var stateChangeData = {
      channel: channelName,
      oldState: oldState,
      newState: channel.state
    };
    channel.emit('subscribeStateChange', stateChangeData);
    channel.emit('unsubscribe', channelName);
    Emitter.prototype.emit.call(this, 'subscribeStateChange', stateChangeData);
    Emitter.prototype.emit.call(this, 'unsubscribe', channelName);
  }
};

SCClientSocket.prototype._tryUnsubscribe = function (channel) {
  var self = this;

  if (this.state === this.OPEN) {
    var options = {
      noTimeout: true
    };
    if (channel.batch) {
      options.batch = true;
    }
    // If there is a pending subscribe action, cancel the callback
    this._cancelPendingSubscribeCallback(channel);

    // This operation cannot fail because the TCP protocol guarantees delivery
    // so long as the connection remains open. If the connection closes,
    // the server will automatically unsubscribe the client and thus complete
    // the operation on the server side.
    var decoratedChannelName = this._decorateChannelName(channel.name);
    this.transport.emit('#unsubscribe', decoratedChannelName, options);
  }
};

SCClientSocket.prototype.unsubscribe = function (channelName) {
  var channel = this.channels[channelName];

  if (channel) {
    if (channel.state !== channel.UNSUBSCRIBED) {
      this._triggerChannelUnsubscribe(channel);
      this._tryUnsubscribe(channel);
    }
  }
};

SCClientSocket.prototype.channel = function (channelName, options) {
  var currentChannel = this.channels[channelName];

  if (!currentChannel) {
    currentChannel = new SCChannel(channelName, this, options);
    this.channels[channelName] = currentChannel;
  }
  return currentChannel;
};

SCClientSocket.prototype.destroyChannel = function (channelName) {
  var channel = this.channels[channelName];

  if (channel) {
    channel.unwatch();
    channel.unsubscribe();
    delete this.channels[channelName];
  }
};

SCClientSocket.prototype.subscriptions = function (includePending) {
  var subs = [];
  var channel, includeChannel;
  for (var channelName in this.channels) {
    if (this.channels.hasOwnProperty(channelName)) {
      channel = this.channels[channelName];

      if (includePending) {
        includeChannel = channel && (channel.state === channel.SUBSCRIBED ||
          channel.state === channel.PENDING);
      } else {
        includeChannel = channel && channel.state === channel.SUBSCRIBED;
      }

      if (includeChannel) {
        subs.push(channelName);
      }
    }
  }
  return subs;
};

SCClientSocket.prototype.isSubscribed = function (channelName, includePending) {
  var channel = this.channels[channelName];
  if (includePending) {
    return !!channel && (channel.state === channel.SUBSCRIBED ||
      channel.state === channel.PENDING);
  }
  return !!channel && channel.state === channel.SUBSCRIBED;
};

SCClientSocket.prototype.processPendingSubscriptions = function () {
  var self = this;

  this.preparingPendingSubscriptions = false;

  var pendingChannels = [];

  for (var i in this.channels) {
    if (this.channels.hasOwnProperty(i)) {
      var channel = this.channels[i];
      if (channel.state === channel.PENDING) {
        pendingChannels.push(channel);
      }
    }
  }

  pendingChannels.sort(function (a, b) {
    var ap = a.priority || 0;
    var bp = b.priority || 0;
    if (ap > bp) {
      return -1;
    }
    if (ap < bp) {
      return 1;
    }
    return 0;
  });

  pendingChannels.forEach(function (channel) {
    self._trySubscribe(channel);
  });
};

SCClientSocket.prototype.watch = function (channelName, handler) {
  if (typeof handler !== 'function') {
    throw new InvalidArgumentsError('No handler function was provided');
  }
  this._channelEmitter.on(channelName, handler);
};

SCClientSocket.prototype.unwatch = function (channelName, handler) {
  if (handler) {
    this._channelEmitter.removeListener(channelName, handler);
  } else {
    this._channelEmitter.removeAllListeners(channelName);
  }
};

SCClientSocket.prototype.watchers = function (channelName) {
  return this._channelEmitter.listeners(channelName);
};

module.exports = SCClientSocket;

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./auth":2,"./response":4,"./sctransport":6,"buffer/":9,"clone":10,"component-emitter":11,"linked-list":14,"querystring":17,"sc-channel":18,"sc-errors":20,"sc-formatter":21}],6:[function(_dereq_,module,exports){
(function (global){
var Emitter = _dereq_('component-emitter');
var Response = _dereq_('./response').Response;
var querystring = _dereq_('querystring');
var WebSocket;
var createWebSocket;

if (global.WebSocket) {
  WebSocket = global.WebSocket;
  createWebSocket = function (uri, options) {
    return new WebSocket(uri);
  };
} else {
  WebSocket = _dereq_('ws');
  createWebSocket = function (uri, options) {
    return new WebSocket(uri, null, options);
  };
}

var scErrors = _dereq_('sc-errors');
var TimeoutError = scErrors.TimeoutError;
var BadConnectionError = scErrors.BadConnectionError;


var SCTransport = function (authEngine, codecEngine, options) {
  var self = this;

  this.state = this.CLOSED;
  this.auth = authEngine;
  this.codec = codecEngine;
  this.options = options;
  this.connectTimeout = options.connectTimeout;
  this.pingTimeout = options.ackTimeout;
  this.pingTimeoutDisabled = !!options.pingTimeoutDisabled;
  this.callIdGenerator = options.callIdGenerator;
  this.authTokenName = options.authTokenName;

  this._pingTimeoutTicker = null;
  this._callbackMap = {};
  this._batchSendList = [];

  // Open the connection.

  this.state = this.CONNECTING;
  var uri = this.uri();

  var wsSocket = createWebSocket(uri, this.options);
  wsSocket.binaryType = this.options.binaryType;

  this.socket = wsSocket;

  wsSocket.onopen = function () {
    self._onOpen();
  };

  wsSocket.onclose = function (event) {
    var code;
    if (event.code == null) {
      // This is to handle an edge case in React Native whereby
      // event.code is undefined when the mobile device is locked.
      // TODO: This is not perfect since this condition could also apply to
      // an abnormal close (no close control frame) which would be a 1006.
      code = 1005;
    } else {
      code = event.code;
    }
    self._onClose(code, event.reason);
  };

  wsSocket.onmessage = function (message, flags) {
    self._onMessage(message.data);
  };

  wsSocket.onerror = function (error) {
    // The onclose event will be called automatically after the onerror event
    // if the socket is connected - Otherwise, if it's in the middle of
    // connecting, we want to close it manually with a 1006 - This is necessary
    // to prevent inconsistent behavior when running the client in Node.js
    // vs in a browser.

    if (self.state === self.CONNECTING) {
      self._onClose(1006);
    }
  };

  this._connectTimeoutRef = setTimeout(function () {
    self._onClose(4007);
    self.socket.close(4007);
  }, this.connectTimeout);
};

SCTransport.prototype = Object.create(Emitter.prototype);

SCTransport.CONNECTING = SCTransport.prototype.CONNECTING = 'connecting';
SCTransport.OPEN = SCTransport.prototype.OPEN = 'open';
SCTransport.CLOSED = SCTransport.prototype.CLOSED = 'closed';

SCTransport.prototype.uri = function () {
  var query = this.options.query || {};
  var schema = this.options.secure ? 'wss' : 'ws';

  if (this.options.timestampRequests) {
    query[this.options.timestampParam] = (new Date()).getTime();
  }

  query = querystring.encode(query);

  if (query.length) {
    query = '?' + query;
  }

  var host;
  if (this.options.host) {
    host = this.options.host;
  } else {
    var port = '';

    if (this.options.port && ((schema === 'wss' && this.options.port !== 443)
      || (schema === 'ws' && this.options.port !== 80))) {
      port = ':' + this.options.port;
    }
    host = this.options.hostname + port;
  }

  return schema + '://' + host + this.options.path + query;
};

SCTransport.prototype._onOpen = function () {
  var self = this;

  clearTimeout(this._connectTimeoutRef);
  this._resetPingTimeout();

  this._handshake(function (err, status) {
    if (err) {
      var statusCode;
      if (status && status.code) {
        statusCode = status.code;
      } else {
        statusCode = 4003;
      }
      self._onError(err);
      self._onClose(statusCode, err.toString());
      self.socket.close(statusCode);
    } else {
      self.state = self.OPEN;
      Emitter.prototype.emit.call(self, 'open', status);
      self._resetPingTimeout();
    }
  });
};

SCTransport.prototype._handshake = function (callback) {
  var self = this;
  this.auth.loadToken(this.authTokenName, function (err, token) {
    if (err) {
      callback(err);
    } else {
      // Don't wait for this.state to be 'open'.
      // The underlying WebSocket (this.socket) is already open.
      var options = {
        force: true
      };
      self.emit('#handshake', {
        authToken: token
      }, options, function (err, status) {
        if (status) {
          // Add the token which was used as part of authentication attempt
          // to the status object.
          status.authToken = token;
          if (status.authError) {
            status.authError = scErrors.hydrateError(status.authError);
          }
        }
        callback(err, status);
      });
    }
  });
};

SCTransport.prototype._abortAllPendingEventsDueToBadConnection = function (failureType) {
  for (var i in this._callbackMap) {
    if (this._callbackMap.hasOwnProperty(i)) {
      var eventObject = this._callbackMap[i];
      delete this._callbackMap[i];

      clearTimeout(eventObject.timeout);
      delete eventObject.timeout;

      var errorMessage = "Event '" + eventObject.event +
        "' was aborted due to a bad connection";
      var badConnectionError = new BadConnectionError(errorMessage, failureType);

      var callback = eventObject.callback;
      delete eventObject.callback;
      callback.call(eventObject, badConnectionError, eventObject);
    }
  }
};

SCTransport.prototype._onClose = function (code, data) {
  delete this.socket.onopen;
  delete this.socket.onclose;
  delete this.socket.onmessage;
  delete this.socket.onerror;

  clearTimeout(this._connectTimeoutRef);
  clearTimeout(this._pingTimeoutTicker);
  clearTimeout(this._batchTimeout);

  if (this.state === this.OPEN) {
    this.state = this.CLOSED;
    Emitter.prototype.emit.call(this, 'close', code, data);
    this._abortAllPendingEventsDueToBadConnection('disconnect');

  } else if (this.state === this.CONNECTING) {
    this.state = this.CLOSED;
    Emitter.prototype.emit.call(this, 'openAbort', code, data);
    this._abortAllPendingEventsDueToBadConnection('connectAbort');
  }
};

SCTransport.prototype._handleEventObject = function (obj, message) {
  if (obj && obj.event != null) {
    var response = new Response(this, obj.cid);
    Emitter.prototype.emit.call(this, 'event', obj.event, obj.data, response);
  } else if (obj && obj.rid != null) {
    var eventObject = this._callbackMap[obj.rid];
    if (eventObject) {
      clearTimeout(eventObject.timeout);
      delete eventObject.timeout;
      delete this._callbackMap[obj.rid];

      if (eventObject.callback) {
        var rehydratedError = scErrors.hydrateError(obj.error);
        eventObject.callback(rehydratedError, obj.data);
      }
    }
  } else {
    Emitter.prototype.emit.call(this, 'event', 'raw', message);
  }
};

SCTransport.prototype._onMessage = function (message) {
  Emitter.prototype.emit.call(this, 'event', 'message', message);

  var obj = this.decode(message);

  // If ping
  if (obj === '#1') {
    this._resetPingTimeout();
    if (this.socket.readyState === this.socket.OPEN) {
      this.sendObject('#2');
    }
  } else {
    if (Array.isArray(obj)) {
      var len = obj.length;
      for (var i = 0; i < len; i++) {
        this._handleEventObject(obj[i], message);
      }
    } else {
      this._handleEventObject(obj, message);
    }
  }
};

SCTransport.prototype._onError = function (err) {
  Emitter.prototype.emit.call(this, 'error', err);
};

SCTransport.prototype._resetPingTimeout = function () {
  if (this.pingTimeoutDisabled) {
    return;
  }
  var self = this;

  var now = (new Date()).getTime();
  clearTimeout(this._pingTimeoutTicker);

  this._pingTimeoutTicker = setTimeout(function () {
    self._onClose(4000);
    self.socket.close(4000);
  }, this.pingTimeout);
};

SCTransport.prototype.getBytesReceived = function () {
  return this.socket.bytesReceived;
};

SCTransport.prototype.close = function (code, data) {
  code = code || 1000;

  if (this.state === this.OPEN) {
    var packet = {
      code: code,
      data: data
    };
    this.emit('#disconnect', packet);

    this._onClose(code, data);
    this.socket.close(code);

  } else if (this.state === this.CONNECTING) {
    this._onClose(code, data);
    this.socket.close(code);
  }
};

SCTransport.prototype.emitObject = function (eventObject, options) {
  var simpleEventObject = {
    event: eventObject.event,
    data: eventObject.data
  };

  if (eventObject.callback) {
    simpleEventObject.cid = eventObject.cid = this.callIdGenerator();
    this._callbackMap[eventObject.cid] = eventObject;
  }

  this.sendObject(simpleEventObject, options);

  return eventObject.cid || null;
};

SCTransport.prototype._handleEventAckTimeout = function (eventObject) {
  if (eventObject.cid) {
    delete this._callbackMap[eventObject.cid];
  }
  delete eventObject.timeout;

  var callback = eventObject.callback;
  if (callback) {
    delete eventObject.callback;
    var error = new TimeoutError("Event response for '" + eventObject.event + "' timed out");
    callback.call(eventObject, error, eventObject);
  }
};

// The last two optional arguments (a and b) can be options and/or callback
SCTransport.prototype.emit = function (event, data, a, b) {
  var self = this;

  var callback, options;

  if (b) {
    options = a;
    callback = b;
  } else {
    if (a instanceof Function) {
      options = {};
      callback = a;
    } else {
      options = a;
    }
  }

  var eventObject = {
    event: event,
    data: data,
    callback: callback
  };

  if (callback && !options.noTimeout) {
    eventObject.timeout = setTimeout(function () {
      self._handleEventAckTimeout(eventObject);
    }, this.options.ackTimeout);
  }

  var cid = null;
  if (this.state === this.OPEN || options.force) {
    cid = this.emitObject(eventObject, options);
  }
  return cid;
};

SCTransport.prototype.cancelPendingResponse = function (cid) {
  delete this._callbackMap[cid];
};

SCTransport.prototype.decode = function (message) {
  return this.codec.decode(message);
};

SCTransport.prototype.encode = function (object) {
  return this.codec.encode(object);
};

SCTransport.prototype.send = function (data) {
  if (this.socket.readyState !== this.socket.OPEN) {
    this._onClose(1005);
  } else {
    this.socket.send(data);
  }
};

SCTransport.prototype.serializeObject = function (object) {
  var str, formatError;
  try {
    str = this.encode(object);
  } catch (err) {
    formatError = err;
    this._onError(form