0.2.0 - Mid migration

web/node_modules/sockjs-client/lib/transport/browser/abstract-xhr.js

@@ -0,0 +1,193 @@
+'use strict';
+
+var EventEmitter = require('events').EventEmitter
+  , inherits = require('inherits')
+  , utils = require('../../utils/event')
+  , urlUtils = require('../../utils/url')
+  , XHR = global.XMLHttpRequest
+  ;
+
+var debug = function() {};
+if (process.env.NODE_ENV !== 'production') {
+  debug = require('debug')('sockjs-client:browser:xhr');
+}
+
+function AbstractXHRObject(method, url, payload, opts) {
+  debug(method, url);
+  var self = this;
+  EventEmitter.call(this);
+
+  setTimeout(function () {
+    self._start(method, url, payload, opts);
+  }, 0);
+}
+
+inherits(AbstractXHRObject, EventEmitter);
+
+AbstractXHRObject.prototype._start = function(method, url, payload, opts) {
+  var self = this;
+
+  try {
+    this.xhr = new XHR();
+  } catch (x) {
+    // intentionally empty
+  }
+
+  if (!this.xhr) {
+    debug('no xhr');
+    this.emit('finish', 0, 'no xhr support');
+    this._cleanup();
+    return;
+  }
+
+  // several browsers cache POSTs
+  url = urlUtils.addQuery(url, 't=' + (+new Date()));
+
+  // Explorer tends to keep connection open, even after the
+  // tab gets closed: http://bugs.jquery.com/ticket/5280
+  this.unloadRef = utils.unloadAdd(function() {
+    debug('unload cleanup');
+    self._cleanup(true);
+  });
+  try {
+    this.xhr.open(method, url, true);
+    if (this.timeout && 'timeout' in this.xhr) {
+      this.xhr.timeout = this.timeout;
+      this.xhr.ontimeout = function() {
+        debug('xhr timeout');
+        self.emit('finish', 0, '');
+        self._cleanup(false);
+      };
+    }
+  } catch (e) {
+    debug('exception', e);
+    // IE raises an exception on wrong port.
+    this.emit('finish', 0, '');
+    this._cleanup(false);
+    return;
+  }
+
+  if ((!opts || !opts.noCredentials) && AbstractXHRObject.supportsCORS) {
+    debug('withCredentials');
+    // Mozilla docs says https://developer.mozilla.org/en/XMLHttpRequest :
+    // "This never affects same-site requests."
+
+    this.xhr.withCredentials = true;
+  }
+  if (opts && opts.headers) {
+    for (var key in opts.headers) {
+      this.xhr.setRequestHeader(key, opts.headers[key]);
+    }
+  }
+
+  this.xhr.onreadystatechange = function() {
+    if (self.xhr) {
+      var x = self.xhr;
+      var text, status;
+      debug('readyState', x.readyState);
+      switch (x.readyState) {
+      case 3:
+        // IE doesn't like peeking into responseText or status
+        // on Microsoft.XMLHTTP and readystate=3
+        try {
+          status = x.status;
+          text = x.responseText;
+        } catch (e) {
+          // intentionally empty
+        }
+        debug('status', status);
+        // IE returns 1223 for 204: http://bugs.jquery.com/ticket/1450
+        if (status === 1223) {
+          status = 204;
+        }
+
+        // IE does return readystate == 3 for 404 answers.
+        if (status === 200 && text && text.length > 0) {
+          debug('chunk');
+          self.emit('chunk', status, text);
+        }
+        break;
+      case 4:
+        status = x.status;
+        debug('status', status);
+        // IE returns 1223 for 204: http://bugs.jquery.com/ticket/1450
+        if (status === 1223) {
+          status = 204;
+        }
+        // IE returns this for a bad port
+        // http://msdn.microsoft.com/en-us/library/windows/desktop/aa383770(v=vs.85).aspx
+        if (status === 12005 || status === 12029) {
+          status = 0;
+        }
+
+        debug('finish', status, x.responseText);
+        self.emit('finish', status, x.responseText);
+        self._cleanup(false);
+        break;
+      }
+    }
+  };
+
+  try {
+    self.xhr.send(payload);
+  } catch (e) {
+    self.emit('finish', 0, '');
+    self._cleanup(false);
+  }
+};
+
+AbstractXHRObject.prototype._cleanup = function(abort) {
+  debug('cleanup');
+  if (!this.xhr) {
+    return;
+  }
+  this.removeAllListeners();
+  utils.unloadDel(this.unloadRef);
+
+  // IE needs this field to be a function
+  this.xhr.onreadystatechange = function() {};
+  if (this.xhr.ontimeout) {
+    this.xhr.ontimeout = null;
+  }
+
+  if (abort) {
+    try {
+      this.xhr.abort();
+    } catch (x) {
+      // intentionally empty
+    }
+  }
+  this.unloadRef = this.xhr = null;
+};
+
+AbstractXHRObject.prototype.close = function() {
+  debug('close');
+  this._cleanup(true);
+};
+
+AbstractXHRObject.enabled = !!XHR;
+// override XMLHttpRequest for IE6/7
+// obfuscate to avoid firewalls
+var axo = ['Active'].concat('Object').join('X');
+if (!AbstractXHRObject.enabled && (axo in global)) {
+  debug('overriding xmlhttprequest');
+  XHR = function() {
+    try {
+      return new global[axo]('Microsoft.XMLHTTP');
+    } catch (e) {
+      return null;
+    }
+  };
+  AbstractXHRObject.enabled = !!new XHR();
+}
+
+var cors = false;
+try {
+  cors = 'withCredentials' in new XHR();
+} catch (ignored) {
+  // intentionally empty
+}
+
+AbstractXHRObject.supportsCORS = cors;
+
+module.exports = AbstractXHRObject;

web/node_modules/sockjs-client/lib/transport/browser/eventsource.js

@@ -0,0 +1 @@
+module.exports = global.EventSource;

web/node_modules/sockjs-client/lib/transport/browser/websocket.js

@@ -0,0 +1,10 @@
+'use strict';
+
+var Driver = global.WebSocket || global.MozWebSocket;
+if (Driver) {
+	module.exports = function WebSocketBrowserDriver(url) {
+		return new Driver(url);
+	};
+} else {
+	module.exports = undefined;
+}