initial commit from working version

6 files changed, 1211 insertions, 0 deletions

diff --git a/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/transports/flashsocket.js b/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/transports/flashsocket.js
new file mode 100644
index 0000000..a1c29fa
--- /dev/null
+++ b/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/transports/flashsocket.js
@@ -0,0 +1,191 @@
+
+/**
+ * socket.io
+ * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+(function (exports, io) {
+
+  /**
+   * Expose constructor.
+   */
+
+  exports.flashsocket = Flashsocket;
+
+  /**
+   * The FlashSocket transport. This is a API wrapper for the HTML5 WebSocket
+   * specification. It uses a .swf file to communicate with the server. If you want
+   * to serve the .swf file from a other server than where the Socket.IO script is
+   * coming from you need to use the insecure version of the .swf. More information
+   * about this can be found on the github page.
+   *
+   * @constructor
+   * @extends {io.Transport.websocket}
+   * @api public
+   */
+
+  function Flashsocket () {
+    io.Transport.websocket.apply(this, arguments);
+  };
+
+  /**
+   * Inherits from Transport.
+   */
+
+  io.util.inherit(Flashsocket, io.Transport.websocket);
+
+  /**
+   * Transport name
+   *
+   * @api public
+   */
+
+  Flashsocket.prototype.name = 'flashsocket';
+
+  /**
+   * Disconnect the established `FlashSocket` connection. This is done by adding a 
+   * new task to the FlashSocket. The rest will be handled off by the `WebSocket` 
+   * transport.
+   *
+   * @returns {Transport}
+   * @api public
+   */
+
+  Flashsocket.prototype.open = function () {
+    var self = this
+      , args = arguments;
+
+    WebSocket.__addTask(function () {
+      io.Transport.websocket.prototype.open.apply(self, args);
+    });
+    return this;
+  };
+  
+  /**
+   * Sends a message to the Socket.IO server. This is done by adding a new
+   * task to the FlashSocket. The rest will be handled off by the `WebSocket` 
+   * transport.
+   *
+   * @returns {Transport}
+   * @api public
+   */
+
+  Flashsocket.prototype.send = function () {
+    var self = this, args = arguments;
+    WebSocket.__addTask(function () {
+      io.Transport.websocket.prototype.send.apply(self, args);
+    });
+    return this;
+  };
+
+  /**
+   * Disconnects the established `FlashSocket` connection.
+   *
+   * @returns {Transport}
+   * @api public
+   */
+
+  Flashsocket.prototype.close = function () {
+    WebSocket.__tasks.length = 0;
+    io.Transport.websocket.prototype.close.call(this);
+    return this;
+  };
+
+  /**
+   * The WebSocket fall back needs to append the flash container to the body
+   * element, so we need to make sure we have access to it. Or defer the call
+   * until we are sure there is a body element.
+   *
+   * @param {Socket} socket The socket instance that needs a transport
+   * @param {Function} fn The callback
+   * @api private
+   */
+
+  Flashsocket.prototype.ready = function (socket, fn) {
+    function init () {
+      var options = socket.options
+        , port = options['flash policy port']
+        , path = [
+              'http' + (options.secure ? 's' : '') + ':/'
+            , options.host + ':' + options.port
+            , options.resource
+            , 'static/flashsocket'
+            , 'WebSocketMain' + (socket.isXDomain() ? 'Insecure' : '') + '.swf'
+          ];
+
+      // Only start downloading the swf file when the checked that this browser
+      // actually supports it
+      if (!Flashsocket.loaded) {
+        if (typeof WEB_SOCKET_SWF_LOCATION === 'undefined') {
+          // Set the correct file based on the XDomain settings
+          WEB_SOCKET_SWF_LOCATION = path.join('/');
+        }
+
+        if (port !== 843) {
+          WebSocket.loadFlashPolicyFile('xmlsocket://' + options.host + ':' + port);
+        }
+
+        WebSocket.__initialize();
+        Flashsocket.loaded = true;
+      }
+
+      fn.call(self);
+    }
+
+    var self = this;
+    if (document.body) return init();
+
+    io.util.load(init);
+  };
+
+  /**
+   * Check if the FlashSocket transport is supported as it requires that the Adobe
+   * Flash Player plug-in version `10.0.0` or greater is installed. And also check if
+   * the polyfill is correctly loaded.
+   *
+   * @returns {Boolean}
+   * @api public
+   */
+
+  Flashsocket.check = function () {
+    if (
+        typeof WebSocket == 'undefined'
+      || !('__initialize' in WebSocket) || !swfobject
+    ) return false;
+
+    return swfobject.getFlashPlayerVersion().major >= 10;
+  };
+
+  /**
+   * Check if the FlashSocket transport can be used as cross domain / cross origin 
+   * transport. Because we can't see which type (secure or insecure) of .swf is used
+   * we will just return true.
+   *
+   * @returns {Boolean}
+   * @api public
+   */
+
+  Flashsocket.xdomainCheck = function () {
+    return true;
+  };
+
+  /**
+   * Disable AUTO_INITIALIZATION
+   */
+
+  if (typeof window != 'undefined') {
+    WEB_SOCKET_DISABLE_AUTO_INITIALIZATION = true;
+  }
+
+  /**
+   * Add the transport to your public io.transports array.
+   *
+   * @api private
+   */
+
+  io.transports.push('flashsocket');
+})(
+    'undefined' != typeof io ? io.Transport : module.exports
+  , 'undefined' != typeof io ? io : module.parent.exports
+);
diff --git a/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/transports/htmlfile.js b/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/transports/htmlfile.js
new file mode 100644
index 0000000..367c4c1
--- /dev/null
+++ b/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/transports/htmlfile.js
@@ -0,0 +1,173 @@
+/**
+ * socket.io
+ * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+(function (exports, io) {
+
+  /**
+   * Expose constructor.
+   */
+
+  exports.htmlfile = HTMLFile;
+
+  /**
+   * The HTMLFile transport creates a `forever iframe` based transport
+   * for Internet Explorer. Regular forever iframe implementations will 
+   * continuously trigger the browsers buzy indicators. If the forever iframe
+   * is created inside a `htmlfile` these indicators will not be trigged.
+   *
+   * @constructor
+   * @extends {io.Transport.XHR}
+   * @api public
+   */
+
+  function HTMLFile (socket) {
+    io.Transport.XHR.apply(this, arguments);
+  };
+
+  /**
+   * Inherits from XHR transport.
+   */
+
+  io.util.inherit(HTMLFile, io.Transport.XHR);
+
+  /**
+   * Transport name
+   *
+   * @api public
+   */
+
+  HTMLFile.prototype.name = 'htmlfile';
+
+  /**
+   * Creates a new ActiveX `htmlfile` with a forever loading iframe
+   * that can be used to listen to messages. Inside the generated
+   * `htmlfile` a reference will be made to the HTMLFile transport.
+   *
+   * @api private
+   */
+
+  HTMLFile.prototype.get = function () {
+    this.doc = new ActiveXObject('htmlfile');
+    this.doc.open();
+    this.doc.write('<html></html>');
+    this.doc.close();
+    this.doc.parentWindow.s = this;
+
+    var iframeC = this.doc.createElement('div');
+    iframeC.className = 'socketio';
+
+    this.doc.body.appendChild(iframeC);
+    this.iframe = this.doc.createElement('iframe');
+
+    iframeC.appendChild(this.iframe);
+
+    var self = this
+      , query = io.util.query(this.socket.options.query, 't='+ +new Date);
+
+    this.iframe.src = this.prepareUrl() + query;
+
+    io.util.on(window, 'unload', function () {
+      self.destroy();
+    });
+  };
+
+  /**
+   * The Socket.IO server will write script tags inside the forever
+   * iframe, this function will be used as callback for the incoming
+   * information.
+   *
+   * @param {String} data The message
+   * @param {document} doc Reference to the context
+   * @api private
+   */
+
+  HTMLFile.prototype._ = function (data, doc) {
+    // unescape all forward slashes. see GH-1251
+    data = data.replace(/\\\//g, '/');
+    this.onData(data);
+    try {
+      var script = doc.getElementsByTagName('script')[0];
+      script.parentNode.removeChild(script);
+    } catch (e) { }
+  };
+
+  /**
+   * Destroy the established connection, iframe and `htmlfile`.
+   * And calls the `CollectGarbage` function of Internet Explorer
+   * to release the memory.
+   *
+   * @api private
+   */
+
+  HTMLFile.prototype.destroy = function () {
+    if (this.iframe){
+      try {
+        this.iframe.src = 'about:blank';
+      } catch(e){}
+
+      this.doc = null;
+      this.iframe.parentNode.removeChild(this.iframe);
+      this.iframe = null;
+
+      CollectGarbage();
+    }
+  };
+
+  /**
+   * Disconnects the established connection.
+   *
+   * @returns {Transport} Chaining.
+   * @api public
+   */
+
+  HTMLFile.prototype.close = function () {
+    this.destroy();
+    return io.Transport.XHR.prototype.close.call(this);
+  };
+
+  /**
+   * Checks if the browser supports this transport. The browser
+   * must have an `ActiveXObject` implementation.
+   *
+   * @return {Boolean}
+   * @api public
+   */
+
+  HTMLFile.check = function (socket) {
+    if (typeof window != "undefined" && 'ActiveXObject' in window){
+      try {
+        var a = new ActiveXObject('htmlfile');
+        return a && io.Transport.XHR.check(socket);
+      } catch(e){}
+    }
+    return false;
+  };
+
+  /**
+   * Check if cross domain requests are supported.
+   *
+   * @returns {Boolean}
+   * @api public
+   */
+
+  HTMLFile.xdomainCheck = function () {
+    // we can probably do handling for sub-domains, we should
+    // test that it's cross domain but a subdomain here
+    return false;
+  };
+
+  /**
+   * Add the transport to your public io.transports array.
+   *
+   * @api private
+   */
+
+  io.transports.push('htmlfile');
+
+})(
+    'undefined' != typeof io ? io.Transport : module.exports
+  , 'undefined' != typeof io ? io : module.parent.exports
+);
diff --git a/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/transports/jsonp-polling.js b/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/transports/jsonp-polling.js
new file mode 100644
index 0000000..a97047f
--- /dev/null
+++ b/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/transports/jsonp-polling.js
@@ -0,0 +1,256 @@
+
+/**
+ * socket.io
+ * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+(function (exports, io, global) {
+  /**
+   * There is a way to hide the loading indicator in Firefox. If you create and
+   * remove a iframe it will stop showing the current loading indicator.
+   * Unfortunately we can't feature detect that and UA sniffing is evil.
+   *
+   * @api private
+   */
+
+  var indicator = global.document && "MozAppearance" in
+    global.document.documentElement.style;
+
+  /**
+   * Expose constructor.
+   */
+
+  exports['jsonp-polling'] = JSONPPolling;
+
+  /**
+   * The JSONP transport creates an persistent connection by dynamically
+   * inserting a script tag in the page. This script tag will receive the
+   * information of the Socket.IO server. When new information is received
+   * it creates a new script tag for the new data stream.
+   *
+   * @constructor
+   * @extends {io.Transport.xhr-polling}
+   * @api public
+   */
+
+  function JSONPPolling (socket) {
+    io.Transport['xhr-polling'].apply(this, arguments);
+
+    this.index = io.j.length;
+
+    var self = this;
+
+    io.j.push(function (msg) {
+      self._(msg);
+    });
+  };
+
+  /**
+   * Inherits from XHR polling transport.
+   */
+
+  io.util.inherit(JSONPPolling, io.Transport['xhr-polling']);
+
+  /**
+   * Transport name
+   *
+   * @api public
+   */
+
+  JSONPPolling.prototype.name = 'jsonp-polling';
+
+  /**
+   * Posts a encoded message to the Socket.IO server using an iframe.
+   * The iframe is used because script tags can create POST based requests.
+   * The iframe is positioned outside of the view so the user does not
+   * notice it's existence.
+   *
+   * @param {String} data A encoded message.
+   * @api private
+   */
+
+  JSONPPolling.prototype.post = function (data) {
+    var self = this
+      , query = io.util.query(
+             this.socket.options.query
+          , 't='+ (+new Date) + '&i=' + this.index
+        );
+
+    if (!this.form) {
+      var form = document.createElement('form')
+        , area = document.createElement('textarea')
+        , id = this.iframeId = 'socketio_iframe_' + this.index
+        , iframe;
+
+      form.className = 'socketio';
+      form.style.position = 'absolute';
+      form.style.top = '0px';
+      form.style.left = '0px';
+      form.style.display = 'none';
+      form.target = id;
+      form.method = 'POST';
+      form.setAttribute('accept-charset', 'utf-8');
+      area.name = 'd';
+      form.appendChild(area);
+      document.body.appendChild(form);
+
+      this.form = form;
+      this.area = area;
+    }
+
+    this.form.action = this.prepareUrl() + query;
+
+    function complete () {
+      initIframe();
+      self.socket.setBuffer(false);
+    };
+
+    function initIframe () {
+      if (self.iframe) {
+        self.form.removeChild(self.iframe);
+      }
+
+      try {
+        // ie6 dynamic iframes with target="" support (thanks Chris Lambacher)
+        iframe = document.createElement('<iframe name="'+ self.iframeId +'">');
+      } catch (e) {
+        iframe = document.createElement('iframe');
+        iframe.name = self.iframeId;
+      }
+
+      iframe.id = self.iframeId;
+
+      self.form.appendChild(iframe);
+      self.iframe = iframe;
+    };
+
+    initIframe();
+
+    // we temporarily stringify until we figure out how to prevent
+    // browsers from turning `\n` into `\r\n` in form inputs
+    this.area.value = io.JSON.stringify(data);
+
+    try {
+      this.form.submit();
+    } catch(e) {}
+
+    if (this.iframe.attachEvent) {
+      iframe.onreadystatechange = function () {
+        if (self.iframe.readyState == 'complete') {
+          complete();
+        }
+      };
+    } else {
+      this.iframe.onload = complete;
+    }
+
+    this.socket.setBuffer(true);
+  };
+
+  /**
+   * Creates a new JSONP poll that can be used to listen
+   * for messages from the Socket.IO server.
+   *
+   * @api private
+   */
+
+  JSONPPolling.prototype.get = function () {
+    var self = this
+      , script = document.createElement('script')
+      , query = io.util.query(
+             this.socket.options.query
+          , 't='+ (+new Date) + '&i=' + this.index
+        );
+
+    if (this.script) {
+      this.script.parentNode.removeChild(this.script);
+      this.script = null;
+    }
+
+    script.async = true;
+    script.src = this.prepareUrl() + query;
+    script.onerror = function () {
+      self.onClose();
+    };
+
+    var insertAt = document.getElementsByTagName('script')[0];
+    insertAt.parentNode.insertBefore(script, insertAt);
+    this.script = script;
+
+    if (indicator) {
+      setTimeout(function () {
+        var iframe = document.createElement('iframe');
+        document.body.appendChild(iframe);
+        document.body.removeChild(iframe);
+      }, 100);
+    }
+  };
+
+  /**
+   * Callback function for the incoming message stream from the Socket.IO server.
+   *
+   * @param {String} data The message
+   * @api private
+   */
+
+  JSONPPolling.prototype._ = function (msg) {
+    this.onData(msg);
+    if (this.isOpen) {
+      this.get();
+    }
+    return this;
+  };
+
+  /**
+   * The indicator hack only works after onload
+   *
+   * @param {Socket} socket The socket instance that needs a transport
+   * @param {Function} fn The callback
+   * @api private
+   */
+
+  JSONPPolling.prototype.ready = function (socket, fn) {
+    var self = this;
+    if (!indicator) return fn.call(this);
+
+    io.util.load(function () {
+      fn.call(self);
+    });
+  };
+
+  /**
+   * Checks if browser supports this transport.
+   *
+   * @return {Boolean}
+   * @api public
+   */
+
+  JSONPPolling.check = function () {
+    return 'document' in global;
+  };
+
+  /**
+   * Check if cross domain requests are supported
+   *
+   * @returns {Boolean}
+   * @api public
+   */
+
+  JSONPPolling.xdomainCheck = function () {
+    return true;
+  };
+
+  /**
+   * Add the transport to your public io.transports array.
+   *
+   * @api private
+   */
+
+  io.transports.push('jsonp-polling');
+
+})(
+    'undefined' != typeof io ? io.Transport : module.exports
+  , 'undefined' != typeof io ? io : module.parent.exports
+  , this
+);
diff --git a/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/transports/websocket.js b/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/transports/websocket.js
new file mode 100644
index 0000000..b2c55ff
--- /dev/null
+++ b/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/transports/websocket.js
@@ -0,0 +1,197 @@
+
+/**
+ * socket.io
+ * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+(function (exports, io, global) {
+
+  /**
+   * Expose constructor.
+   */
+
+  exports.websocket = WS;
+
+  /**
+   * The WebSocket transport uses the HTML5 WebSocket API to establish an
+   * persistent connection with the Socket.IO server. This transport will also
+   * be inherited by the FlashSocket fallback as it provides a API compatible
+   * polyfill for the WebSockets.
+   *
+   * @constructor
+   * @extends {io.Transport}
+   * @api public
+   */
+
+  function WS (socket) {
+    io.Transport.apply(this, arguments);
+  };
+
+  /**
+   * Inherits from Transport.
+   */
+
+  io.util.inherit(WS, io.Transport);
+
+  /**
+   * Transport name
+   *
+   * @api public
+   */
+
+  WS.prototype.name = 'websocket';
+
+  /**
+   * Initializes a new `WebSocket` connection with the Socket.IO server. We attach
+   * all the appropriate listeners to handle the responses from the server.
+   *
+   * @returns {Transport}
+   * @api public
+   */
+
+  WS.prototype.open = function () {
+    var query = io.util.query(this.socket.options.query)
+      , self = this
+      , Socket
+
+    // if node
+    Socket = require('ws');
+    // end node
+
+    if (!Socket) {
+      Socket = global.MozWebSocket || global.WebSocket;
+    }
+
+    this.websocket = new Socket(this.prepareUrl() + query);
+
+    this.websocket.onopen = function () {
+      self.onOpen();
+      self.socket.setBuffer(false);
+    };
+    this.websocket.onmessage = function (ev) {
+      self.onData(ev.data);
+    };
+    this.websocket.onclose = function () {
+      self.onClose();
+      self.socket.setBuffer(true);
+    };
+    this.websocket.onerror = function (e) {
+      self.onError(e);
+    };
+
+    return this;
+  };
+
+  /**
+   * Send a message to the Socket.IO server. The message will automatically be
+   * encoded in the correct message format.
+   *
+   * @returns {Transport}
+   * @api public
+   */
+
+  // Do to a bug in the current IDevices browser, we need to wrap the send in a 
+  // setTimeout, when they resume from sleeping the browser will crash if 
+  // we don't allow the browser time to detect the socket has been closed
+  if (io.util.ua.iDevice) {
+    WS.prototype.send = function (data) {
+      var self = this;
+      setTimeout(function() {
+         self.websocket.send(data);
+      },0);
+      return this;
+    };
+  } else {
+    WS.prototype.send = function (data) {
+      this.websocket.send(data);
+      return this;
+    };
+  }
+
+  /**
+   * Payload
+   *
+   * @api private
+   */
+
+  WS.prototype.payload = function (arr) {
+    for (var i = 0, l = arr.length; i < l; i++) {
+      this.packet(arr[i]);
+    }
+    return this;
+  };
+
+  /**
+   * Disconnect the established `WebSocket` connection.
+   *
+   * @returns {Transport}
+   * @api public
+   */
+
+  WS.prototype.close = function () {
+    this.websocket.close();
+    return this;
+  };
+
+  /**
+   * Handle the errors that `WebSocket` might be giving when we
+   * are attempting to connect or send messages.
+   *
+   * @param {Error} e The error.
+   * @api private
+   */
+
+  WS.prototype.onError = function (e) {
+    this.socket.onError(e);
+  };
+
+  /**
+   * Returns the appropriate scheme for the URI generation.
+   *
+   * @api private
+   */
+  WS.prototype.scheme = function () {
+    return this.socket.options.secure ? 'wss' : 'ws';
+  };
+
+  /**
+   * Checks if the browser has support for native `WebSockets` and that
+   * it's not the polyfill created for the FlashSocket transport.
+   *
+   * @return {Boolean}
+   * @api public
+   */
+
+  WS.check = function () {
+    // if node
+    return true;
+    // end node
+    return ('WebSocket' in global && !('__addTask' in WebSocket))
+          || 'MozWebSocket' in global;
+  };
+
+  /**
+   * Check if the `WebSocket` transport support cross domain communications.
+   *
+   * @returns {Boolean}
+   * @api public
+   */
+
+  WS.xdomainCheck = function () {
+    return true;
+  };
+
+  /**
+   * Add the transport to your public io.transports array.
+   *
+   * @api private
+   */
+
+  io.transports.push('websocket');
+
+})(
+    'undefined' != typeof io ? io.Transport : module.exports
+  , 'undefined' != typeof io ? io : module.parent.exports
+  , this
+);
diff --git a/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/transports/xhr-polling.js b/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/transports/xhr-polling.js
new file mode 100644
index 0000000..0decb6b
--- /dev/null
+++ b/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/transports/xhr-polling.js
@@ -0,0 +1,177 @@
+
+/**
+ * socket.io
+ * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+(function (exports, io, global) {
+
+  /**
+   * Expose constructor.
+   */
+
+  exports['xhr-polling'] = XHRPolling;
+
+  /**
+   * The XHR-polling transport uses long polling XHR requests to create a
+   * "persistent" connection with the server.
+   *
+   * @constructor
+   * @api public
+   */
+
+  function XHRPolling () {
+    io.Transport.XHR.apply(this, arguments);
+  };
+
+  /**
+   * Inherits from XHR transport.
+   */
+
+  io.util.inherit(XHRPolling, io.Transport.XHR);
+
+  /**
+   * Merge the properties from XHR transport
+   */
+
+  io.util.merge(XHRPolling, io.Transport.XHR);
+
+  /**
+   * Transport name
+   *
+   * @api public
+   */
+
+  XHRPolling.prototype.name = 'xhr-polling';
+
+  /**
+   * Indicates whether heartbeats is enabled for this transport
+   *
+   * @api private
+   */
+
+  XHRPolling.prototype.heartbeats = function () {
+    return false;
+  };
+
+  /** 
+   * Establish a connection, for iPhone and Android this will be done once the page
+   * is loaded.
+   *
+   * @returns {Transport} Chaining.
+   * @api public
+   */
+
+  XHRPolling.prototype.open = function () {
+    var self = this;
+
+    io.Transport.XHR.prototype.open.call(self);
+    return false;
+  };
+
+  /**
+   * Starts a XHR request to wait for incoming messages.
+   *
+   * @api private
+   */
+
+  function empty () {};
+
+  XHRPolling.prototype.get = function () {
+    if (!this.isOpen) return;
+
+    var self = this;
+
+    function stateChange () {
+      if (this.readyState == 4) {
+        this.onreadystatechange = empty;
+
+        if (this.status == 200) {
+          self.onData(this.responseText);
+          self.get();
+        } else {
+          self.onClose();
+        }
+      }
+    };
+
+    function onload () {
+      this.onload = empty;
+      this.onerror = empty;
+      self.retryCounter = 1;
+      self.onData(this.responseText);
+      self.get();
+    };
+
+    function onerror () {
+      self.retryCounter ++;
+      if(!self.retryCounter || self.retryCounter > 3) {
+        self.onClose();  
+      } else {
+        self.get();
+      }
+    };
+
+    this.xhr = this.request();
+
+    if (global.XDomainRequest && this.xhr instanceof XDomainRequest) {
+      this.xhr.onload = onload;
+      this.xhr.onerror = onerror;
+    } else {
+      this.xhr.onreadystatechange = stateChange;
+    }
+
+    this.xhr.send(null);
+  };
+
+  /**
+   * Handle the unclean close behavior.
+   *
+   * @api private
+   */
+
+  XHRPolling.prototype.onClose = function () {
+    io.Transport.XHR.prototype.onClose.call(this);
+
+    if (this.xhr) {
+      this.xhr.onreadystatechange = this.xhr.onload = this.xhr.onerror = empty;
+      try {
+        this.xhr.abort();
+      } catch(e){}
+      this.xhr = null;
+    }
+  };
+
+  /**
+   * Webkit based browsers show a infinit spinner when you start a XHR request
+   * before the browsers onload event is called so we need to defer opening of
+   * the transport until the onload event is called. Wrapping the cb in our
+   * defer method solve this.
+   *
+   * @param {Socket} socket The socket instance that needs a transport
+   * @param {Function} fn The callback
+   * @api private
+   */
+
+  XHRPolling.prototype.ready = function (socket, fn) {
+    var self = this;
+
+    io.util.defer(function () {
+      fn.call(self);
+    });
+  };
+
+  /**
+   * Add the transport to your public io.transports array.
+   *
+   * @api private
+   */
+
+  io.transports.push('xhr-polling');
+
+})(
+    'undefined' != typeof io ? io.Transport : module.exports
+  , 'undefined' != typeof io ? io : module.parent.exports
+  , this
+);
diff --git a/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/transports/xhr.js b/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/transports/xhr.js
new file mode 100644
index 0000000..0625905
--- /dev/null
+++ b/signaling-server/node_modules/socket.io/node_modules/socket.io-client/lib/transports/xhr.js
@@ -0,0 +1,217 @@
+
+/**
+ * socket.io
+ * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+(function (exports, io, global) {
+
+  /**
+   * Expose constructor.
+   *
+   * @api public
+   */
+
+  exports.XHR = XHR;
+
+  /**
+   * XHR constructor
+   *
+   * @costructor
+   * @api public
+   */
+
+  function XHR (socket) {
+    if (!socket) return;
+
+    io.Transport.apply(this, arguments);
+    this.sendBuffer = [];
+  };
+
+  /**
+   * Inherits from Transport.
+   */
+
+  io.util.inherit(XHR, io.Transport);
+
+  /**
+   * Establish a connection
+   *
+   * @returns {Transport}
+   * @api public
+   */
+
+  XHR.prototype.open = function () {
+    this.socket.setBuffer(false);
+    this.onOpen();
+    this.get();
+
+    // we need to make sure the request succeeds since we have no indication
+    // whether the request opened or not until it succeeded.
+    this.setCloseTimeout();
+
+    return this;
+  };
+
+  /**
+   * Check if we need to send data to the Socket.IO server, if we have data in our
+   * buffer we encode it and forward it to the `post` method.
+   *
+   * @api private
+   */
+
+  XHR.prototype.payload = function (payload) {
+    var msgs = [];
+
+    for (var i = 0, l = payload.length; i < l; i++) {
+      msgs.push(io.parser.encodePacket(payload[i]));
+    }
+
+    this.send(io.parser.encodePayload(msgs));
+  };
+
+  /**
+   * Send data to the Socket.IO server.
+   *
+   * @param data The message
+   * @returns {Transport}
+   * @api public
+   */
+
+  XHR.prototype.send = function (data) {
+    this.post(data);
+    return this;
+  };
+
+  /**
+   * Posts a encoded message to the Socket.IO server.
+   *
+   * @param {String} data A encoded message.
+   * @api private
+   */
+
+  function empty () { };
+
+  XHR.prototype.post = function (data) {
+    var self = this;
+    this.socket.setBuffer(true);
+
+    function stateChange () {
+      if (this.readyState == 4) {
+        this.onreadystatechange = empty;
+        self.posting = false;
+
+        if (this.status == 200){
+          self.socket.setBuffer(false);
+        } else {
+          self.onClose();
+        }
+      }
+    }
+
+    function onload () {
+      this.onload = empty;
+      self.socket.setBuffer(false);
+    };
+
+    this.sendXHR = this.request('POST');
+
+    if (global.XDomainRequest && this.sendXHR instanceof XDomainRequest) {
+      this.sendXHR.onload = this.sendXHR.onerror = onload;
+    } else {
+      this.sendXHR.onreadystatechange = stateChange;
+    }
+
+    this.sendXHR.send(data);
+  };
+
+  /**
+   * Disconnects the established `XHR` connection.
+   *
+   * @returns {Transport}
+   * @api public
+   */
+
+  XHR.prototype.close = function () {
+    this.onClose();
+    return this;
+  };
+
+  /**
+   * Generates a configured XHR request
+   *
+   * @param {String} url The url that needs to be requested.
+   * @param {String} method The method the request should use.
+   * @returns {XMLHttpRequest}
+   * @api private
+   */
+
+  XHR.prototype.request = function (method) {
+    var req = io.util.request(this.socket.isXDomain())
+      , query = io.util.query(this.socket.options.query, 't=' + +new Date);
+
+    req.open(method || 'GET', this.prepareUrl() + query, true);
+
+    if (method == 'POST') {
+      try {
+        if (req.setRequestHeader) {
+          req.setRequestHeader('Content-type', 'text/plain;charset=UTF-8');
+        } else {
+          // XDomainRequest
+          req.contentType = 'text/plain';
+        }
+      } catch (e) {}
+    }
+
+    return req;
+  };
+
+  /**
+   * Returns the scheme to use for the transport URLs.
+   *
+   * @api private
+   */
+
+  XHR.prototype.scheme = function () {
+    return this.socket.options.secure ? 'https' : 'http';
+  };
+
+  /**
+   * Check if the XHR transports are supported
+   *
+   * @param {Boolean} xdomain Check if we support cross domain requests.
+   * @returns {Boolean}
+   * @api public
+   */
+
+  XHR.check = function (socket, xdomain) {
+    try {
+      var request = io.util.request(xdomain),
+          usesXDomReq = (global.XDomainRequest && request instanceof XDomainRequest),
+          socketProtocol = (socket && socket.options && socket.options.secure ? 'https:' : 'http:'),
+          isXProtocol = (global.location && socketProtocol != global.location.protocol);
+      if (request && !(usesXDomReq && isXProtocol)) {
+        return true;
+      }
+    } catch(e) {}
+
+    return false;
+  };
+
+  /**
+   * Check if the XHR transport supports cross domain requests.
+   *
+   * @returns {Boolean}
+   * @api public
+   */
+
+  XHR.xdomainCheck = function (socket) {
+    return XHR.check(socket, true);
+  };
+
+})(
+    'undefined' != typeof io ? io.Transport : module.exports
+  , 'undefined' != typeof io ? io : module.parent.exports
+  , this
+);