chatserver.php

<?php
/**
 * OAI-PMH
 *
 * Copyright (C) 2012  Arie Nugraha (dicarve@yahoo.com)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */

// prevent the server from timing out
set_time_limit(0);

// call configuration 
define('INDEX_AUTH', '1');
require 'sysconfig.inc.php';

// include the web sockets server script (the server is started at the far bottom of this file)
require 'lib/phpwebsocket.php';

// when a client sends data to the server
function wsOnMessage($clientID, $message, $messageLength, $binary) {
	global $Server;
	$ip = long2ip( $Server->wsClients[$clientID][6] );

	// check if message length is 0
	if ($messageLength == 0) {
		$Server->wsClose($clientID);
		return;
	}

	//The speaker is the only person in the room. Don't let them feel lonely.
	if ( sizeof($Server->wsClients) == 1 )
		$Server->wsSend($clientID, __("There isn't anyone else in the room."));
	else
		//Send the message to everyone but the person who said it
		foreach ( $Server->wsClients as $id => $client )
			if ( $id != $clientID ) {
				$_message = explode("|", $message);
				$Server->wsSend($id, '<strong class="c'.$clientID.'">'.$_message[0].":</strong> ".$_message[1]);
			}
}

// when a client connects
function wsOnOpen($clientID)
{
	echo $clientID;
	global $Server;
	$ip = long2ip( $Server->wsClients[$clientID][6] );

	$Server->log( _("Someone has connected.") );

	//Send a join notice to everyone but the person who joined
	foreach ( $Server->wsClients as $id => $client )
		if ( $id != $clientID )
			$Server->wsSend($id, _("Someone has joined the room."));
}

// when a client closes or lost connection
function wsOnClose($clientID, $status) {
	global $Server;
	$ip = long2ip( $Server->wsClients[$clientID][6] );

	$Server->log( _("Someone has disconnected.") );

	//Send a user left notice to everyone in the room
	foreach ( $Server->wsClients as $id => $client )
		$Server->wsSend($id, _("Someone has left the room."));
}

// start the server
$Server = new PHPWebSocket();
$Server->bind('message', 'wsOnMessage');
$Server->bind('open', 'wsOnOpen');
$Server->bind('close', 'wsOnClose');
// for other computers to connect, you will probably need to change this to your LAN IP or external IP,
// alternatively use: gethostbyaddr(gethostbyname($_SERVER['SERVER_NAME']))
$Server->wsStartServer($sysconf['chat_system']['server'], $sysconf['chat_system']['server_port']);