<?php
/************************************************************************
 * MXChange v0.2.1                                    Start: 01/16/2004 *
 * ================                             Last change: 05/14/2004 *
 *                                                                      *
 * -------------------------------------------------------------------- *
 * File              : what-updates.php                                 *
 * -------------------------------------------------------------------- *
 * Short description : Check for updates                                *
 * -------------------------------------------------------------------- *
 * Kurzbeschreibung  : Prueft nach Updates                              *
 * -------------------------------------------------------------------- *
 *                                                                      *
 * -------------------------------------------------------------------- *
 * Copyright (c) 2003 - 2008 by Roland Haeder                           *
 * For more information visit: http://www.mxchange.org                  *
 *                                                                      *
 * 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 2 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 St, Fifth Floor, Boston,               *
 * MA  02110-1301  USA                                                  *
 ************************************************************************/

// Some security stuff...
if ((!defined('__SECURITY')) || (!IS_ADMIN())) {
	$INC = substr(dirname(__FILE__), 0, strpos(dirname(__FILE__), "/inc") + 4) . "/security.php";
	require($INC);
}

// Add description as navigation point
ADD_DESCR("admin", __FILE__);

// Init array
$ONLINE['code'] = "???";

// Get response from our server in an array
$response = GET_URL("check-updates3.php");

if (empty($response[0]) && empty($response[1]) && empty($response[2]) && empty($response[3])) {
	// Error!
	$response = array("", "", "");
} else {
	// Analyse header for response code
	if (eregi("200 OK", $response[0])) {
		// Found, kill header
		$pos = 0;
		foreach($response as $k => $v) {
			$v = trim($v);
			if (empty($v)) {
				// Header ends here (+1)
				$pos = $k + 1; break;
			}
		}

		$response2 = array();
		for($i = $pos; $i < count($response); $i++) {
			$response2[] = trim($response[$i]);
		}
		$response = $response2; unset($response2);
		unset($pos);

		// Which is the latest version on server?
		$ONLINE = array(
			'version'  => str_replace("\n", "", $response[0]),
			'changed'  => str_replace("\n", "", $response[1]),
			'revision' => str_replace("\n", "", $response[2]),
		);

		// Array for available patches
		$PATCHES = array(
			'fname' => array(),
			'fsize' => array(),
			'ctime' => array()
		);

		if (($response[3] != "[EOF]") && ($ONLINE['version'] == FULL_VERSION)) {
			// We have found new patches (newer than FULL_VERSION)
			$max = str_replace("\n", "", $response[sizeof($response) - 2]); $TOTAL_SIZE = 0;

			// Maximum of available pacthes extracted (above). Now we can get all informations
			for ($idx = 0; $idx < $max; $idx++) {
				// List only newer patches
				$TEST = substr(str_replace("\n", "", $response[$idx * 5 + 2]), 0, strlen(getConfig('patch_level')));

				// I have removed the addional test for the stored timemark in database or you cannot find
				// new updates on my server when you haven't installed it before I upload a patch... :-(
				if (bigintval($TEST) > bigintval(getConfig('patch_level'))) {
					// Copy every data from the response array
					$PATCHES['fname'][] = str_replace("\n", "", $response[$idx * 5 + 2]);
					$PATCHES['fsize'][] = str_replace("\n", "", $response[$idx * 5 + 3]);
					$PATCHES['ctime'][] = str_replace("\n", "", $response[$idx * 5 + 4]);
					switch (GET_LANGUAGE()) {
						case "de": $PATCHES['descr'][] = str_replace("\n", "", $response[$idx * 5 + 5]); break; // Load german description
						default  : $PATCHES['descr'][] = str_replace("\n", "", $response[$idx * 5 + 6]); break; // Load english description as default
					}

					// Add patch's size to total
					$TOTAL_SIZE += $PATCHES['fsize'][$idx];
				}
			}

			array_pk_sort($PATCHES, array("ctime", "fname"));

			// All done here!
			$ONLINE['code'] = "200 OK";
		}
	} else {
		// 404 / 403 error from server
		$ONLINE['code'] = $response[0];
	}
}

// Is a newer version available?
if (empty($ONLINE['version'])) {
	// Disconnected?
	LOAD_TEMPLATE("admin_settings_saved", false, "<div class=\"admin_failed\">{--ADMIN_CANNOT_CHECK_VERSION--} (".$ONLINE['code'].")</div>");
} elseif (($ONLINE['version'] != constant('FULL_VERSION')) || ($ONLINE['revision'] != constant('CURR_SVN_REVISION'))) {
	// New full-version available (all previous released patches are included in this version!)
	define('__ONLINE_VERSION', $ONLINE['version']);
	define('__ONLINE_CHANGE' , MAKE_DATETIME($ONLINE['changed'], "2"));
	define('__ONLINE_REVISION', $ONLINE['revision']);

	// Load template
	LOAD_TEMPLATE("admin_update_download");
} else {
	// You have the latest version!
	LOAD_TEMPLATE("admin_settings_saved", false, getMessage('NO_UPDATES_AVAILABLE'));
}

//
?>