0.2.0 - Mid migration

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

@@ -0,0 +1,63 @@
+'use strict';
+
+var inherits = require('inherits')
+  , EventEmitter = require('events').EventEmitter
+  , EventSourceDriver = require('eventsource')
+  ;
+
+var debug = function() {};
+if (process.env.NODE_ENV !== 'production') {
+  debug = require('debug')('sockjs-client:receiver:eventsource');
+}
+
+function EventSourceReceiver(url) {
+  debug(url);
+  EventEmitter.call(this);
+
+  var self = this;
+  var es = this.es = new EventSourceDriver(url);
+  es.onmessage = function(e) {
+    debug('message', e.data);
+    self.emit('message', decodeURI(e.data));
+  };
+  es.onerror = function(e) {
+    debug('error', es.readyState, e);
+    // ES on reconnection has readyState = 0 or 1.
+    // on network error it's CLOSED = 2
+    var reason = (es.readyState !== 2 ? 'network' : 'permanent');
+    self._cleanup();
+    self._close(reason);
+  };
+}
+
+inherits(EventSourceReceiver, EventEmitter);
+
+EventSourceReceiver.prototype.abort = function() {
+  debug('abort');
+  this._cleanup();
+  this._close('user');
+};
+
+EventSourceReceiver.prototype._cleanup = function() {
+  debug('cleanup');
+  var es = this.es;
+  if (es) {
+    es.onmessage = es.onerror = null;
+    es.close();
+    this.es = null;
+  }
+};
+
+EventSourceReceiver.prototype._close = function(reason) {
+  debug('close', reason);
+  var self = this;
+  // Safari and chrome < 15 crash if we close window before
+  // waiting for ES cleanup. See:
+  // https://code.google.com/p/chromium/issues/detail?id=89155
+  setTimeout(function() {
+    self.emit('close', null, reason);
+    self.removeAllListeners();
+  }, 200);
+};
+
+module.exports = EventSourceReceiver;

web/node_modules/sockjs-client/lib/transport/receiver/htmlfile.js

@@ -0,0 +1,87 @@
+'use strict';
+
+var inherits = require('inherits')
+  , iframeUtils = require('../../utils/iframe')
+  , urlUtils = require('../../utils/url')
+  , EventEmitter = require('events').EventEmitter
+  , random = require('../../utils/random')
+  ;
+
+var debug = function() {};
+if (process.env.NODE_ENV !== 'production') {
+  debug = require('debug')('sockjs-client:receiver:htmlfile');
+}
+
+function HtmlfileReceiver(url) {
+  debug(url);
+  EventEmitter.call(this);
+  var self = this;
+  iframeUtils.polluteGlobalNamespace();
+
+  this.id = 'a' + random.string(6);
+  url = urlUtils.addQuery(url, 'c=' + decodeURIComponent(iframeUtils.WPrefix + '.' + this.id));
+
+  debug('using htmlfile', HtmlfileReceiver.htmlfileEnabled);
+  var constructFunc = HtmlfileReceiver.htmlfileEnabled ?
+      iframeUtils.createHtmlfile : iframeUtils.createIframe;
+
+  global[iframeUtils.WPrefix][this.id] = {
+    start: function() {
+      debug('start');
+      self.iframeObj.loaded();
+    }
+  , message: function(data) {
+      debug('message', data);
+      self.emit('message', data);
+    }
+  , stop: function() {
+      debug('stop');
+      self._cleanup();
+      self._close('network');
+    }
+  };
+  this.iframeObj = constructFunc(url, function() {
+    debug('callback');
+    self._cleanup();
+    self._close('permanent');
+  });
+}
+
+inherits(HtmlfileReceiver, EventEmitter);
+
+HtmlfileReceiver.prototype.abort = function() {
+  debug('abort');
+  this._cleanup();
+  this._close('user');
+};
+
+HtmlfileReceiver.prototype._cleanup = function() {
+  debug('_cleanup');
+  if (this.iframeObj) {
+    this.iframeObj.cleanup();
+    this.iframeObj = null;
+  }
+  delete global[iframeUtils.WPrefix][this.id];
+};
+
+HtmlfileReceiver.prototype._close = function(reason) {
+  debug('_close', reason);
+  this.emit('close', null, reason);
+  this.removeAllListeners();
+};
+
+HtmlfileReceiver.htmlfileEnabled = false;
+
+// obfuscate to avoid firewalls
+var axo = ['Active'].concat('Object').join('X');
+if (axo in global) {
+  try {
+    HtmlfileReceiver.htmlfileEnabled = !!new global[axo]('htmlfile');
+  } catch (x) {
+    // intentionally empty
+  }
+}
+
+HtmlfileReceiver.enabled = HtmlfileReceiver.htmlfileEnabled || iframeUtils.iframeEnabled;
+
+module.exports = HtmlfileReceiver;

web/node_modules/sockjs-client/lib/transport/receiver/jsonp.js

@@ -0,0 +1,183 @@
+'use strict';
+
+var utils = require('../../utils/iframe')
+  , random = require('../../utils/random')
+  , browser = require('../../utils/browser')
+  , urlUtils = require('../../utils/url')
+  , inherits = require('inherits')
+  , EventEmitter = require('events').EventEmitter
+  ;
+
+var debug = function() {};
+if (process.env.NODE_ENV !== 'production') {
+  debug = require('debug')('sockjs-client:receiver:jsonp');
+}
+
+function JsonpReceiver(url) {
+  debug(url);
+  var self = this;
+  EventEmitter.call(this);
+
+  utils.polluteGlobalNamespace();
+
+  this.id = 'a' + random.string(6);
+  var urlWithId = urlUtils.addQuery(url, 'c=' + encodeURIComponent(utils.WPrefix + '.' + this.id));
+
+  global[utils.WPrefix][this.id] = this._callback.bind(this);
+  this._createScript(urlWithId);
+
+  // Fallback mostly for Konqueror - stupid timer, 35 seconds shall be plenty.
+  this.timeoutId = setTimeout(function() {
+    debug('timeout');
+    self._abort(new Error('JSONP script loaded abnormally (timeout)'));
+  }, JsonpReceiver.timeout);
+}
+
+inherits(JsonpReceiver, EventEmitter);
+
+JsonpReceiver.prototype.abort = function() {
+  debug('abort');
+  if (global[utils.WPrefix][this.id]) {
+    var err = new Error('JSONP user aborted read');
+    err.code = 1000;
+    this._abort(err);
+  }
+};
+
+JsonpReceiver.timeout = 35000;
+JsonpReceiver.scriptErrorTimeout = 1000;
+
+JsonpReceiver.prototype._callback = function(data) {
+  debug('_callback', data);
+  this._cleanup();
+
+  if (this.aborting) {
+    return;
+  }
+
+  if (data) {
+    debug('message', data);
+    this.emit('message', data);
+  }
+  this.emit('close', null, 'network');
+  this.removeAllListeners();
+};
+
+JsonpReceiver.prototype._abort = function(err) {
+  debug('_abort', err);
+  this._cleanup();
+  this.aborting = true;
+  this.emit('close', err.code, err.message);
+  this.removeAllListeners();
+};
+
+JsonpReceiver.prototype._cleanup = function() {
+  debug('_cleanup');
+  clearTimeout(this.timeoutId);
+  if (this.script2) {
+    this.script2.parentNode.removeChild(this.script2);
+    this.script2 = null;
+  }
+  if (this.script) {
+    var script = this.script;
+    // Unfortunately, you can't really abort script loading of
+    // the script.
+    script.parentNode.removeChild(script);
+    script.onreadystatechange = script.onerror =
+        script.onload = script.onclick = null;
+    this.script = null;
+  }
+  delete global[utils.WPrefix][this.id];
+};
+
+JsonpReceiver.prototype._scriptError = function() {
+  debug('_scriptError');
+  var self = this;
+  if (this.errorTimer) {
+    return;
+  }
+
+  this.errorTimer = setTimeout(function() {
+    if (!self.loadedOkay) {
+      self._abort(new Error('JSONP script loaded abnormally (onerror)'));
+    }
+  }, JsonpReceiver.scriptErrorTimeout);
+};
+
+JsonpReceiver.prototype._createScript = function(url) {
+  debug('_createScript', url);
+  var self = this;
+  var script = this.script = global.document.createElement('script');
+  var script2;  // Opera synchronous load trick.
+
+  script.id = 'a' + random.string(8);
+  script.src = url;
+  script.type = 'text/javascript';
+  script.charset = 'UTF-8';
+  script.onerror = this._scriptError.bind(this);
+  script.onload = function() {
+    debug('onload');
+    self._abort(new Error('JSONP script loaded abnormally (onload)'));
+  };
+
+  // IE9 fires 'error' event after onreadystatechange or before, in random order.
+  // Use loadedOkay to determine if actually errored
+  script.onreadystatechange = function() {
+    debug('onreadystatechange', script.readyState);
+    if (/loaded|closed/.test(script.readyState)) {
+      if (script && script.htmlFor && script.onclick) {
+        self.loadedOkay = true;
+        try {
+          // In IE, actually execute the script.
+          script.onclick();
+        } catch (x) {
+          // intentionally empty
+        }
+      }
+      if (script) {
+        self._abort(new Error('JSONP script loaded abnormally (onreadystatechange)'));
+      }
+    }
+  };
+  // IE: event/htmlFor/onclick trick.
+  // One can't rely on proper order for onreadystatechange. In order to
+  // make sure, set a 'htmlFor' and 'event' properties, so that
+  // script code will be installed as 'onclick' handler for the
+  // script object. Later, onreadystatechange, manually execute this
+  // code. FF and Chrome doesn't work with 'event' and 'htmlFor'
+  // set. For reference see:
+  //   http://jaubourg.net/2010/07/loading-script-as-onclick-handler-of.html
+  // Also, read on that about script ordering:
+  //   http://wiki.whatwg.org/wiki/Dynamic_Script_Execution_Order
+  if (typeof script.async === 'undefined' && global.document.attachEvent) {
+    // According to mozilla docs, in recent browsers script.async defaults
+    // to 'true', so we may use it to detect a good browser:
+    // https://developer.mozilla.org/en/HTML/Element/script
+    if (!browser.isOpera()) {
+      // Naively assume we're in IE
+      try {
+        script.htmlFor = script.id;
+        script.event = 'onclick';
+      } catch (x) {
+        // intentionally empty
+      }
+      script.async = true;
+    } else {
+      // Opera, second sync script hack
+      script2 = this.script2 = global.document.createElement('script');
+      script2.text = "try{var a = document.getElementById('" + script.id + "'); if(a)a.onerror();}catch(x){};";
+      script.async = script2.async = false;
+    }
+  }
+  if (typeof script.async !== 'undefined') {
+    script.async = true;
+  }
+
+  var head = global.document.getElementsByTagName('head')[0];
+  head.insertBefore(script, head.firstChild);
+  if (script2) {
+    head.insertBefore(script2, head.firstChild);
+  }
+};
+
+module.exports = JsonpReceiver;

web/node_modules/sockjs-client/lib/transport/receiver/xhr.js

@@ -0,0 +1,70 @@
+'use strict';
+
+var inherits = require('inherits')
+  , EventEmitter = require('events').EventEmitter
+  ;
+
+var debug = function() {};
+if (process.env.NODE_ENV !== 'production') {
+  debug = require('debug')('sockjs-client:receiver:xhr');
+}
+
+function XhrReceiver(url, AjaxObject) {
+  debug(url);
+  EventEmitter.call(this);
+  var self = this;
+
+  this.bufferPosition = 0;
+
+  this.xo = new AjaxObject('POST', url, null);
+  this.xo.on('chunk', this._chunkHandler.bind(this));
+  this.xo.once('finish', function(status, text) {
+    debug('finish', status, text);
+    self._chunkHandler(status, text);
+    self.xo = null;
+    var reason = status === 200 ? 'network' : 'permanent';
+    debug('close', reason);
+    self.emit('close', null, reason);
+    self._cleanup();
+  });
+}
+
+inherits(XhrReceiver, EventEmitter);
+
+XhrReceiver.prototype._chunkHandler = function(status, text) {
+  debug('_chunkHandler', status);
+  if (status !== 200 || !text) {
+    return;
+  }
+
+  for (var idx = -1; ; this.bufferPosition += idx + 1) {
+    var buf = text.slice(this.bufferPosition);
+    idx = buf.indexOf('\n');
+    if (idx === -1) {
+      break;
+    }
+    var msg = buf.slice(0, idx);
+    if (msg) {
+      debug('message', msg);
+      this.emit('message', msg);
+    }
+  }
+};
+
+XhrReceiver.prototype._cleanup = function() {
+  debug('_cleanup');
+  this.removeAllListeners();
+};
+
+XhrReceiver.prototype.abort = function() {
+  debug('abort');
+  if (this.xo) {
+    this.xo.close();
+    debug('close');
+    this.emit('close', null, 'user');
+    this.xo = null;
+  }
+  this._cleanup();
+};
+
+module.exports = XhrReceiver;