<?php

/*

* LMS version 1.11-git

*

* (C) Copyright 2001-2012 LMS Developers

*

* Please, see the doc/AUTHORS for more information about authors!

*

* This program is free software; you can redistribute it and/or modify

* it under the terms of the GNU General Public License Version 2 as

* published by the Free Software Foundation.

*

* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307,

* USA.

*

* $Id$

*/

// REPLACE THIS WITH PATH TO YOUR CONFIG FILE

$CONFIG_FILE = '/etc/lms/lms.ini';

// PLEASE DO NOT MODIFY ANYTHING BELOW THIS LINE UNLESS YOU KNOW

// *EXACTLY* WHAT ARE YOU DOING!!!

// *******************************************************************

define('START_TIME', microtime(true));

define('LMS-UI', true);

ini_set('error_reporting', E_ALL&~E_NOTICE);

// find alternative config files:

if(is_readable('lms.ini'))

$CONFIG_FILE = 'lms.ini';

elseif(is_readable('/etc/lms/lms-'.$_SERVER['HTTP_HOST'].'.ini'))

$CONFIG_FILE = '/etc/lms/lms-'.$_SERVER['HTTP_HOST'].'.ini';

elseif(!is_readable($CONFIG_FILE))

die('Unable to read configuration file ['.$CONFIG_FILE.']!');

$CONFIG = (array) parse_ini_file($CONFIG_FILE, true);

// Check for configuration vars and set default values

$CONFIG['directories']['sys_dir'] = (!isset($CONFIG['directories']['sys_dir']) ? getcwd() : $CONFIG['directories']['sys_dir']);

$CONFIG['directories']['lib_dir'] = (!isset($CONFIG['directories']['lib_dir']) ? $CONFIG['directories']['sys_dir'].'/lib' : $CONFIG['directories']['lib_dir']);

$CONFIG['directories']['doc_dir'] = (!isset($CONFIG['directories']['doc_dir']) ? $CONFIG['directories']['sys_dir'].'/documents' : $CONFIG['directories']['doc_dir']);

$CONFIG['directories']['modules_dir'] = (!isset($CONFIG['directories']['modules_dir']) ? $CONFIG['directories']['sys_dir'].'/modules' : $CONFIG['directories']['modules_dir']);

$CONFIG['directories']['backup_dir'] = (!isset($CONFIG['directories']['backup_dir']) ? $CONFIG['directories']['sys_dir'].'/backups' : $CONFIG['directories']['backup_dir']);

$CONFIG['directories']['config_templates_dir'] = (!isset($CONFIG['directories']['config_templates_dir']) ? $CONFIG['directories']['sys_dir'].'/config_templates' : $CONFIG['directories']['config_templates_dir']);

$CONFIG['directories']['smarty_compile_dir'] = (!isset($CONFIG['directories']['smarty_compile_dir']) ? $CONFIG['directories']['sys_dir'].'/templates_c' : $CONFIG['directories']['smarty_compile_dir']);

$CONFIG['directories']['smarty_templates_dir'] = (!isset($CONFIG['directories']['smarty_templates_dir']) ? $CONFIG['directories']['sys_dir'].'/templates' : $CONFIG['directories']['smarty_templates_dir']);

define('SYS_DIR', $CONFIG['directories']['sys_dir']);

define('LIB_DIR', $CONFIG['directories']['lib_dir']);

define('DOC_DIR', $CONFIG['directories']['doc_dir']);

define('BACKUP_DIR', $CONFIG['directories']['backup_dir']);

define('MODULES_DIR', $CONFIG['directories']['modules_dir']);

define('SMARTY_COMPILE_DIR', $CONFIG['directories']['smarty_compile_dir']);

define('SMARTY_TEMPLATES_DIR', $CONFIG['directories']['smarty_templates_dir']);

// Do some checks and load config defaults

require_once(LIB_DIR.'/checkdirs.php');

require_once(LIB_DIR.'/config.php');

// Init database

$_DBTYPE = $CONFIG['database']['type'];

$_DBHOST = $CONFIG['database']['host'];

$_DBUSER = $CONFIG['database']['user'];

$_DBPASS = $CONFIG['database']['password'];

$_DBNAME = $CONFIG['database']['database'];

$_DBDEBUG = (isset($CONFIG['database']['debug']) ? chkconfig($CONFIG['database']['debug']) : FALSE);

require(LIB_DIR.'/LMSDB.php');

$DB = DBInit($_DBTYPE, $_DBHOST, $_DBUSER, $_DBPASS, $_DBNAME, $_DBDEBUG);

if(!$DB)

{

// can't working without database

die();

}

// Call any of upgrade process before anything else

require_once(LIB_DIR.'/upgradedb.php');

// Initialize templates engine (must be before locale settings)

require_once(LIB_DIR.'/Smarty/Smarty.class.php');

$SMARTY = new Smarty;

// test for proper version of Smarty

if (defined('Smarty::SMARTY_VERSION'))

$ver_chunks = preg_split('/[- ]/', Smarty::SMARTY_VERSION);

else

$ver_chunks = NULL;

if (count($ver_chunks) != 2 || version_compare('3.0', $ver_chunks[1]) > 0)

die('<B>Wrong version of Smarty engine! We support only Smarty-3.x greater than 3.0.</B>');

define('SMARTY_VERSION', $ver_chunks[1]);

// uncomment this line if you're not gonna change template files no more

//$SMARTY->compile_check = false;

// Read configuration of LMS-UI from database

if($cfg = $DB->GetAll('SELECT section, var, value FROM uiconfig WHERE disabled=0'))

foreach($cfg as $row)

$CONFIG[$row['section']][$row['var']] = $row['value'];

// Redirect to SSL

$_FORCE_SSL = (isset($CONFIG['phpui']['force_ssl']) ? chkconfig($CONFIG['phpui']['force_ssl']) : FALSE);

if($_FORCE_SSL && (!isset($_SERVER['HTTPS']) || $_SERVER['HTTPS'] != 'on'))

{

header('Location: https://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']);

exit(0);

}

// Include required files (including sequence is important)

require_once(LIB_DIR.'/language.php');

require_once(LIB_DIR.'/unstrip.php');

require_once(LIB_DIR.'/definitions.php');

require_once(LIB_DIR.'/common.php');

require_once(LIB_DIR.'/checkip.php');

require_once(LIB_DIR.'/LMS.class.php');

require_once(LIB_DIR.'/Auth.class.php');

require_once(LIB_DIR.'/accesstable.php');

require_once(LIB_DIR.'/Session.class.php');

// Initialize Session, Auth and LMS classes

$SESSION = new Session($DB, $CONFIG['phpui']['timeout']);

$AUTH = new Auth($DB, $SESSION);

$LMS = new LMS($DB, $AUTH, $CONFIG);

$LMS->ui_lang = $_ui_language;

$LMS->lang = $_language;

// Set some template and layout variables

$SMARTY->template_dir = SMARTY_TEMPLATES_DIR;

$SMARTY->compile_dir = SMARTY_COMPILE_DIR;

$SMARTY->debugging = (isset($CONFIG['phpui']['smarty_debug']) ? chkconfig($CONFIG['phpui']['smarty_debug']) : FALSE);

$layout['logname'] = $AUTH->logname;

$layout['logid'] = $AUTH->id;

$layout['lmsdbv'] = $DB->_version;

$layout['smarty_version'] = SMARTY_VERSION;

$layout['hostname'] = hostname();

$layout['lmsv'] = '1.11-git';

//$layout['lmsvr'] = $LMS->_revision.'/'.$AUTH->_revision;

$layout['lmsvr'] = '';

$layout['dberrors'] =& $DB->errors;

$layout['dbdebug'] = $_DBDEBUG;

$layout['popup'] = isset($_GET['popup']) ? true : false;

$SMARTY->assignByRef('layout', $layout);

$SMARTY->assignByRef('LANGDEFS', $LANGDEFS);

$SMARTY->assignByRef('_ui_language', $LMS->ui_lang);

$SMARTY->assignByRef('_language', $LMS->lang);

$error = NULL; // initialize error variable needed for (almost) all modules

// Load menu

if(!$layout['popup'])

{

require_once(LIB_DIR.'/menu.php');

$SMARTY->assign('newmenu', $menu);

}

header('X-Powered-By: LMS/'.$layout['lmsv']);

// Check privileges and execute modules

if ($AUTH->islogged) {

// Load plugin files and register hook callbacks

$plugins = preg_split('/[;,\s\t\n]+/', $CONFIG['phpui']['plugins'], -1, PREG_SPLIT_NO_EMPTY);

if (!empty($plugins))

foreach ($plugins as $plugin_name)

require LIB_DIR . '/plugins/' . $plugin_name . '.php';

$res = $LMS->ExecHook('access_table_init', array('accesstable' => $access['table']));

if (isset($res['accesstable']))

$access['table'] = $res['accesstable'];

$module = isset($_GET['m']) ? preg_replace('/[^a-zA-Z0-9_-]/', '', $_GET['m']) : '';

$deny = $allow = FALSE;

$res = $LMS->ExecHook('module_load_before', array('module' => $module));

if ($res['abort']) {

$SESSION->close();

$DB->Destroy();

die;

}

$module = $res['module'];

if ($AUTH->passwdrequiredchange)

$module = 'chpasswd';

if ($module == '')

{

$module = $CONFIG['phpui']['default_module'];

}

if (file_exists(MODULES_DIR.'/'.$module.'.php'))

{

$global_allow = !$AUTH->id || (!empty($access['allow']) && preg_match('/'.$access['allow'].'/i', $module));

if ($AUTH->id && ($rights = $LMS->GetUserRights($AUTH->id)))

foreach ($rights as $level)

{

if ($level === 0) {

$CONFIG['privileges']['superuser'] = true;

}

if (!$global_allow && !$deny && isset($access['table'][$level]['deny_reg']))

$deny = (bool) preg_match('/'.$access['table'][$level]['deny_reg'].'/i', $module);

elseif (!$allow && isset($access['table'][$level]['allow_reg']))

$allow = (bool) preg_match('/'.$access['table'][$level]['allow_reg'].'/i', $module);

if (isset($access['table'][$level]['privilege']))

$CONFIG['privileges'][$access['table'][$level]['privilege']] = TRUE;

}

if ($global_allow || ($allow && !$deny))

{

$layout['module'] = $module;

$LMS->InitUI();

include(MODULES_DIR.'/'.$module.'.php');

}

else

$SMARTY->display('noaccess.html');

}

else

{

$layout['module'] = 'notfound';

$layout['pagetitle'] = trans('Error!');

$SMARTY->assign('layout', $layout);

$SMARTY->assign('server', $_SERVER);

$SMARTY->display('notfound.html');

}

if($SESSION->get('lastmodule') != $module)

$SESSION->save('lastmodule', $module);

}

else

{

$SMARTY->assign('error', $AUTH->error);

$SMARTY->assign('target','?'.$_SERVER['QUERY_STRING']);

$SMARTY->display('login.html');

}

$SESSION->close();

$DB->Destroy();

?>