Ping Server

pingserver.js

var net = require('net');
var http = require('http');

var lastKey = "";
var sockets = [];

var netServer = net.createServer(function (socket) {
   sockets.push(socket);
   
   var removeClient = function () {
     var index = sockets.indexOf(socket);
      if (index != -1) sockets.splice(index, 1);
   };

   socket.on('end', removeClient);
   socket.on('error', removeClient);
});

var httpServer = http.createServer(function (req, res) {
   if (req.url.indexOf(lastKey) > 0)
   {  
      console.log(req.connection.remoteAddress + ' won!');
      console.log(req.url);
   }
});

netServer.listen(8081);
httpServer.listen(8080);

setInterval(function () {
   lastKey = new Date().getTime().toString();

   for (var i = 0; i < sockets.length; i++) {
      try {
         var s = sockets[i];
         s.write(lastKey);
      } catch(e) { console.log(e);}
   }
}, 2007);