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node_modules/faye-websocket/lib/faye/websocket.js 1.3 KB
aaac7fed   liuqimichale   add
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  // API references:
  //
  // * http://dev.w3.org/html5/websockets/
  // * http://dvcs.w3.org/hg/domcore/raw-file/tip/Overview.html#interface-eventtarget
  // * http://dvcs.w3.org/hg/domcore/raw-file/tip/Overview.html#interface-event
  
  var util   = require('util'),
      driver = require('websocket-driver'),
      API    = require('./websocket/api');
  
  var WebSocket = function(request, socket, body, protocols, options) {
    options = options || {};
  
    this._stream = socket;
    this._driver = driver.http(request, {maxLength: options.maxLength, protocols: protocols});
  
    var self = this;
    if (!this._stream || !this._stream.writable) return;
    if (!this._stream.readable) return this._stream.end();
  
    var catchup = function() { self._stream.removeListener('data', catchup) };
    this._stream.on('data', catchup);
  
    API.call(this, options);
  
    process.nextTick(function() {
      self._driver.start();
      self._driver.io.write(body);
    });
  };
  util.inherits(WebSocket, API);
  
  WebSocket.isWebSocket = function(request) {
    return driver.isWebSocket(request);
  };
  
  WebSocket.validateOptions = function(options, validKeys) {
    driver.validateOptions(options, validKeys);
  };
  
  WebSocket.WebSocket   = WebSocket;
  WebSocket.Client      = require('./websocket/client');
  WebSocket.EventSource = require('./eventsource');
  
  module.exports        = WebSocket;