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Code:

<? ini_set("memory_limit", "16M"); ?>
<?php
/**
* @version $Id: index.php 6022 2006-12-18 22:30:07Z friesengeist $
* @package Joomla
* @copyright Copyright (C) 2005 Open Source Matters. All rights reserved.
* @license http://www.gnu.org/copyleft/gpl.html GNU/GPL, see LICENSE.php
* Joomla! is free software. This version may have been modified pursuant
* to the GNU General Public License, and as distributed it includes or
* is derivative of works licensed under the GNU General Public License or
* other free or open source software licenses.
* See COPYRIGHT.php for copyright notices and details.
*/

// Set flag that this is a parent file
define( '_VALID_MOS', 1 );

// checks for configuration file, if none found loads installation page
if (!file_exists( 'configuration.php' ) || filesize( 'configuration.php' ) < 10) {
$self = rtrim( dirname( $_SERVER['PHP_SELF'] ), '/\\' ) . '/';
header("Location: http://" . $_SERVER['HTTP_HOST'] . $self . "installation/index.php" );
exit();
}

require( 'globals.php' );
require_once( 'configuration.php' );

// SSL check - $http_host returns <live site url>:<port number if it is 443>
$http_host = explode(':', $_SERVER['HTTP_HOST'] );
if( (!empty( $_SERVER['HTTPS'] ) && strtolower( $_SERVER['HTTPS'] ) != 'off' || isset( $http_host[1] ) && $http_host[1] == 443) && substr( $mosConfig_live_site, 0, 8 ) != 'https://' ) {
$mosConfig_live_site = 'https://'.substr( $mosConfig_live_site, 7 );
}

require_once( 'includes/joomla.php' );

//Installation sub folder check, removed for work with SVN
if (file_exists( 'installation/index.php' ) && $_VERSION->SVN == 0) {
define( '_INSTALL_CHECK', 1 );
include ( $mosConfig_absolute_path .'/offline.php');
exit();
}

// displays offline/maintanance page or bar
if ($mosConfig_offline == 1) {
require( $mosConfig_absolute_path .'/offline.php' );
}

// load system bot group
$_MAMBOTS->loadBotGroup( 'system' );

// trigger the onStart events
$_MAMBOTS->trigger( 'onStart' );

if (file_exists( $mosConfig_absolute_path .'/components/com_sef/sef.php' )) {
require_once( $mosConfig_absolute_path .'/components/com_sef/sef.php' );
} else {
require_once( $mosConfig_absolute_path .'/includes/sef.php' );
}
require_once( $mosConfig_absolute_path .'/includes/frontend.php' );
//JOOMLAHACKS.COM : require SMF's SSI and save/restore globals that it cleans
defined( 'JPATH_BASE' ) or define('JPATH_BASE', $mosConfig_absolute_path);
if (file_exists(JPATH_BASE.'/components/com_smf/smf.class.php')) {
global $context;
require_once(JPATH_BASE.'/components/com_smf/smf.class.php');
$jsmfConfig = jsmfFrontend::loadParams();
jsmfFrontend::saveVars($savedVars);
require_once($jsmfConfig->smf_path."/SSI.php");
$jsmf =& jsmfFrontend::singleton();
$jsmf->restoreVars($savedVars);
}

// retrieve some expected url (or form) arguments
$option = strval( strtolower( mosGetParam( $_REQUEST, 'option' ) ) );
$Itemid = intval( mosGetParam( $_REQUEST, 'Itemid', null ) );

if ($option == '') {
if ($Itemid) {
$query = "SELECT id, link"
. "\n FROM #__menu"
. "\n WHERE menutype = 'mainmenu'"
. "\n AND id = " . (int) $Itemid
. "\n AND published = 1"
;
$database->setQuery( $query );
} else {
$query = "SELECT id, link"
. "\n FROM #__menu"
. "\n WHERE menutype = 'mainmenu'"
. "\n AND published = 1"
. "\n ORDER BY parent, ordering"
;
$database->setQuery( $query, 0, 1 );
}
$menu = new mosMenu( $database );
if ($database->loadObject( $menu )) {
$Itemid = $menu->id;
}
$link = $menu->link;
if (($pos = strpos( $link, '?' )) !== false) {
$link = substr( $link, $pos+1 ). '&Itemid='.$Itemid;
}
parse_str( $link, $temp );
/** this is a patch, need to rework when globals are handled better */
foreach ($temp as $k=>$v) {
$GLOBALS[$k] = $v;
$_REQUEST[$k] = $v;
if ($k == 'option') {
$option = $v;
}
}
}
if ( !$Itemid ) {
// when no Itemid give a default value
$Itemid = 99999999;
}

// mainframe is an API workhorse, lots of 'core' interaction routines
$mainframe = new mosMainFrame( $database, $option, '.' );
$mainframe->initSession();

// trigger the onAfterStart events
$_MAMBOTS->trigger( 'onAfterStart' );

// checking if we can find the Itemid thru the content
if ( $option == 'com_content' && $Itemid === 0 ) {
$id = intval( mosGetParam( $_REQUEST, 'id', 0 ) );
$Itemid = $mainframe->getItemid( $id );
}

/** do we have a valid Itemid yet?? */
if ( $Itemid === 0 ) {
/** Nope, just use the homepage then. */
$query = "SELECT id"
. "\n FROM #__menu"
. "\n WHERE menutype = 'mainmenu'"
. "\n AND published = 1"
. "\n ORDER BY parent, ordering"
;
$database->setQuery( $query, 0, 1 );
$Itemid = $database->loadResult();
}

// patch to lessen the impact on templates
if ($option == 'search') {
$option = 'com_search';
}

// loads english language file by default
if ($mosConfig_lang=='') {
$mosConfig_lang = 'english';
}
include_once( $mosConfig_absolute_path .'/language/' . $mosConfig_lang . '.php' );

// frontend login & logout controls
$return = strval( mosGetParam( $_REQUEST, 'return', NULL ) );
//JOOMLAHACKS.COM
$message = intval( mosGetParam( $_POST, 'message', 0 ) );
$jsmf->restorePostMessage($savedVars);

if ($option == 'login') {

//JOOMLAHACKS.COM
$_SESSION['USER_AGENT'] = $_SERVER['HTTP_USER_AGENT'];
$_SESSION['_FROM_MOS'] = TRUE;
$_SESSION['_RETURN'] = $return;
$jsmf->doLogin(true);

// JS Popup message
if ( $message ) {
?>
<script language="javascript" type="text/javascript">

</script>
<?php
}

if ( $return && !( strpos( $return, 'com_registration' ) || strpos( $return, 'com_login' ) ) ) {
// checks for the presence of a return url
// and ensures that this url is not the registration or login pages
// If a sessioncookie exists, redirect to the given page. Otherwise, take an extra round for a cookiecheck
if (isset( $_COOKIE[mosMainFrame::sessionCookieName()] )) {
mosRedirect( $return );
} else {
mosRedirect( $mosConfig_live_site .'/index.php?option=cookiecheck&return=' . urlencode( $return ) );
}
} else {
// If a sessioncookie exists, redirect to the start page. Otherwise, take an extra round for a cookiecheck
if (isset( $_COOKIE[mosMainFrame::sessionCookieName()] )) {
mosRedirect( $mosConfig_live_site .'/index.php' );
} else {
mosRedirect( $mosConfig_live_site .'/index.php?option=cookiecheck&return=' . urlencode( $mosConfig_live_site .'/index.php' ) );
}
}

} else if ($option == 'logout') {

//JOOMLAHACKS.COM
//$mainframe->logout();
mosRedirect($mosConfig_live_site.'/'.$jsmfConfig->url.'action=logout;sesc='.$context['session_id']);

// JS Popup message
if ( $message ) {
?>
<script language="javascript" type="text/javascript">

</script>
<?php
}

if ( $return && !( strpos( $return, 'com_registration' ) || strpos( $return, 'com_login' ) ) ) {
// checks for the presence of a return url
// and ensures that this url is not the registration or logout pages
mosRedirect( $return );
} else {
mosRedirect( $mosConfig_live_site.'/index.php' );
}
} else if ($option == 'cookiecheck') {
// No cookie was set upon login. If it is set now, redirect to the given page. Otherwise, show error message.
if (isset( $_COOKIE[mosMainFrame::sessionCookieName()] )) {
mosRedirect( $return );
} else {
mosErrorAlert( _ALERT_ENABLED );
}
}

/** get the information about the current user from the sessions table */
$my = $mainframe->getUser();

// detect first visit
$mainframe->detect();

// set for overlib check
$mainframe->set( 'loadOverlib', false );

$gid = intval( $my->gid );

// gets template for page
$cur_template = $mainframe->getTemplate();
/** temp fix - this feature is currently disabled */

/** @global A places to store information from processing of the component */
$_MOS_OPTION = array();

// precapture the output of the component
require_once( $mosConfig_absolute_path . '/editor/editor.php' );

ob_start();

if ($path = $mainframe->getPath( 'front' )) {
$task = strval( mosGetParam( $_REQUEST, 'task', '' ) );
$ret = mosMenuCheck( $Itemid, $option, $task, $gid );

if ($ret) {
require_once( $path );
} else {
mosNotAuth();
}
} else {
header( 'HTTP/1.0 404 Not Found' );
echo _NOT_EXIST;
}

$_MOS_OPTION['buffer'] = ob_get_contents();

ob_end_clean();

initGzip();

//JOOMLAHACKS.COM
if (!headers_sent()) {

header( 'Expires: Mon, 26 Jul 1997 05:00:00 GMT' );
header( 'Last-Modified: ' . gmdate( 'D, d M Y H:i:s' ) . ' GMT' );
header( 'Cache-Control: no-store, no-cache, must-revalidate' );
header( 'Cache-Control: post-check=0, pre-check=0', false );
header( 'Pragma: no-cache' );
}

// display the offline alert if an admin is logged in
if (defined( '_ADMIN_OFFLINE' )) {
include( $mosConfig_absolute_path .'/offlinebar.php' );
}

// loads template file
if ( !file_exists( $mosConfig_absolute_path .'/templates/'. $cur_template .'/index.php' ) ) {
echo _TEMPLATE_WARN . $cur_template;
} else {
require_once( $mosConfig_absolute_path .'/templates/'. $cur_template .'/index.php' );
echo '';
}

// displays queries performed for page
if ($mosConfig_debug) {
echo $database->_ticker . ' queries executed';
echo '<pre>';
foreach ($database->_log as $k=>$sql) {
echo $k+1 . "\n" . $sql . '<hr />';
}
echo '</pre>';
}

doGzip();
?>