nodejs server websocket

 var WebSocketServer = require('websocket').server;
 var http = require('http');

 var server = http.createServer(function(request, response) {
     console.log((new Date()) + ' Received request for ' + request.url);
     response.writeHead(404);
     response.end();
 });
 server.listen(8080, function() {
     console.log((new Date()) + ' Server is listening on port 8080');
 });

 wsServer = new WebSocketServer({
     httpServer: server,
     // You should not use autoAcceptConnections for production
     // applications, as it defeats all standard cross-origin protection
     // facilities built into the protocol and the browser.  You should
     // *always* verify the connection's origin and decide whether or not
     // to accept it.
     autoAcceptConnections: false
 });

 function originIsAllowed(origin) {
   // put logic here to detect whether the specified origin is allowed.
   return true;
 }

 wsServer.on('request', function(request) {
     if (!originIsAllowed(request.origin)) {
       // Make sure we only accept requests from an allowed origin
       request.reject();
       console.log((new Date()) + ' Connection from origin ' + request.origin + ' rejected.');
       return;
     }

     var connection = request.accept('echo-protocol', request.origin);
     console.log((new Date()) + ' Connection accepted.');
     connection.on('message', function(message) {
         if (message.type === 'utf8') {
             console.log('Received Message: ' + message.utf8Data);
             connection.sendUTF(message.utf8Data);
         }
         else if (message.type === 'binary') {
             console.log('Received Binary Message of ' + message.binaryData.length + ' bytes');
             connection.sendBytes(message.binaryData);
         }
     });
     connection.on('close', function(reasonCode, description) {
         console.log((new Date()) + ' Peer ' + connection.remoteAddress + ' disconnected.');
     });
 });