<?php
/**
 * Jaxl (Jabber XMPP Library)
 *
 * Copyright (c) 2009-2010, Abhinav Singh <me@abhinavsingh.com>.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in
 *     the documentation and/or other materials provided with the
 *     distribution.
 *
 *   * Neither the name of Abhinav Singh nor the names of his
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRIC
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * @package jaxl
 * @subpackage xep
 * @author Abhinav Singh <me@abhinavsingh.com>
 * @copyright Abhinav Singh
 * @link http://code.google.com/p/jaxl
 */

	/*
	 * XEP: 0012 Last Activity
	 * Version: 2.0
	 * Url: http://xmpp.org/extensions/xep-0012.html
	*/
	class JAXL0012 {

		public static $ns = 'jabber:iq:last';
		
		public static function init() {
			global $jaxl;
			$jaxl->features[] = self::$ns;
			
			JAXLPlugin::add('jaxl_get_iq_get', array('JAXL0012', 'getIq'));
		}
		
		public static function getLastActivity($to, $from, $callback) {
			$payload = '';
			$payload .= '<query xmlns="'.self::$ns.'"/>';
			return XMPPSend::iq('get', $payload, $to, $from, $callback);
		}
		
		public static function getIq($arr) {
			if(isset($arr['queryXmlns']) && $arr['queryXmlns'] == self::$ns) {
				$payload = '';
				$payload .= '<query xmlns="'.self::$ns.'" seconds="0">';
				$payload .= '</query>';
				
				return XMPPSend::iq('result', $payload, $arr['from'], $arr['to'], FALSE, $arr['id']);
			}
			else {
				return $arr;
			}
		}
		
	}

?>
