var	express = require('express'),
		app 		= express.createServer(),
		sio 		= require('socket.io'),
		redis 	= require("redis"),
    client 	= redis.createClient(),
		io			= null;

/**
 *	Used to parse cookie
 */
function parse_cookies(_cookies) {
	var cookies = {};

	_cookies && _cookies.split(';').forEach(function( cookie ) {
		var parts = cookie.split('=');
		cookies[ parts[ 0 ].trim() ] = ( parts[ 1 ] || '' ).trim();
	});

	return cookies;
}
	
app.listen(3000, "localhost");
io = sio.listen(app);

io.configure(function () {
  function auth (data, fn) {
  	var cookies = parse_cookies(data.headers.cookie);
  	console.log('PHPSESSID: ' + cookies.PHPSESSID);
  	
		client.sismember('sid', cookies.PHPSESSID, function (err , reply) {
			fn(null, reply);	
		});
  };

  io.set('authorization', auth);
});

io.sockets.on('connection', function (socket) {
  socket.emit('access', 'granted');
});