initialize.php

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<?php
 
// include secure.php to protect this file and the whole CMS!
if(!defined("SEC_FILE")){define("SEC_FILE",'/framework/secure.php' );}
if (defined('LEPTON_PATH')) {   
    include LEPTON_PATH.SEC_FILE; 
} else {
    $oneback = "../";
    $root = $oneback;
    $level = 1;
    while (($level < 10) && (!file_exists($root.SEC_FILE))) {
        $root .= $oneback;
        $level += 1;
    }
    if (file_exists($root.SEC_FILE)) { 
        include $root.SEC_FILE; 
    } else {
        trigger_error(sprintf("[ <b>%s</b> ] Can't include secure.php!", $_SERVER['SCRIPT_NAME']), E_USER_ERROR);
    }
}
// end include secure file
 
if (!function_exists("lepton_autoloader"))
{
    require_once __DIR__."/functions/function.lepton_autoloader.php";
    spl_autoload_register("lepton_autoloader", true);
}
 
// load constants
LEPTON_handle::include_files("/framework/constants.php");
 
// Get an instance from class database
$database = LEPTON_database::getInstance();
 
LEPTON_handle::register("get_leptoken");
 
 
//  set error-reporting
if (is_numeric(ER_LEVEL))
{
    error_reporting( ER_LEVEL );
    if (ER_LEVEL != 0)
    {
        ini_set('display_errors', 1);
    }
}
 
// Start a session
if (!defined('SESSION_STARTED'))
{
    // set name of session cookie
    session_name(APP_NAME . 'sessionid');
 
    //$cookie_settings = session_get_cookie_params();
    $cookie_settings = LEPTON_session::get_cookie_defaults();
    
    // create the session
    session_start();
 
    //  Initialize the session cookie with the defaults
    LEPTON_session::set_cookie( session_name(), session_id(), $cookie_settings );
 
    unset($cookie_settings);
 
    // create constant so this part is not running again
    define( 'SESSION_STARTED', true );
 
    // save in session
    $_SESSION['LSH'] = password_hash( LEPTON_GUID, PASSWORD_DEFAULT);
}
 
 
//  Update the session cookie to the defaults
if (true === isset($_COOKIE[APP_NAME.'sessionid']))
{
    LEPTON_session::set_cookie( session_name(), $_COOKIE[ APP_NAME . 'sessionid' ], [] );
}
 
if (defined('ENABLED_ASP') && !isset($_SESSION['SESSION_STARTED']))
{
    $_SESSION[ 'SESSION_STARTED' ] = time();
}
 
// logout if not properly initialized
if (!defined("LEPTON_INSTALL_PROCESS"))
{
    
    if ((!isset($_SESSION['LSH'])) || (!password_verify(LEPTON_GUID, $_SESSION['LSH'])))
    {   
        $_SESSION = [];
        LEPTON_session::set_cookie( session_name(), "", array( "expires"=> time() - 1 ) );
        session_destroy();
        header('Location: '.ADMIN_URL.'/login/index.php');
        die();
    }
}
 
 
if(!defined('FRONTEND'))
{
    define('FRONTEND', false);
}
if(FRONTEND == true)
{
    // Get users language
    if (isset($_GET['lang']) && ($_GET['lang'] != '') && (!is_numeric($_GET['lang'])) && (strlen($_GET['lang']) == 2))
    {
        // needed for frontend and easymultilanguage function without being logged in
        $iTempPageId = $page_id ?? ((defined("PAGE_ID") ? PAGE_ID : 0));
 
        if (0 != $iTempPageId)
        {
            $sTempLang = $database->get_one("SELECT `language` FROM `".TABLE_PREFIX."pages` WHERE `page_id` = ".$iTempPageId);
            if (NULL != $sTempLang)
            {
                define( 'LANGUAGE', $sTempLang );
            } 
            else 
            {
                // more or less a theoretical case
                define('LANGUAGE', DEFAULT_LANGUAGE);
            }
        } 
        else 
        {   // needed for FE being logged in
            if (isset($_SESSION['USER_ID']))
            {
                $sTempLang = $database->get_one("SELECT `language` FROM `".TABLE_PREFIX."users` WHERE `user_id`=" . $_SESSION['USER_ID']);
                if (NULL != $sTempLang)
                {
                    define('LANGUAGE', $sTempLang);
                } 
                else 
                {
                    define('LANGUAGE', strtoupper($_GET['lang']));
                }
            } 
            else 
            {
                define('LANGUAGE', strtoupper($_GET['lang']));
            }
        }
 
        $_SESSION['LANGUAGE'] = LANGUAGE;
    }
    else
    {
        if(isset($page_id))
        {
            $page_language = $database->get_one("SELECT language FROM ".TABLE_PREFIX."pages WHERE page_id = ".$page_id);
            define('LANGUAGE',$page_language);
        }
        else
        {
            define('LANGUAGE',DEFAULT_LANGUAGE);
        }
    }
}
else
{   // this part is for backend only
    if (isset($_SESSION['LANGUAGE']) && ($_SESSION['LANGUAGE'] != ''))
    {
        $iTempPageId = $page_id ?? ((defined("PAGE_ID") ? PAGE_ID : 0));
 
        if (0 != $iTempPageId)
        {
            $sTempLang = $database->get_one("SELECT `language` FROM `" . TABLE_PREFIX . "pages` WHERE `page_id`=" . $iTempPageId);
            if (NULL != $sTempLang)
            {
                define('LANGUAGE', $sTempLang);
            } 
            else 
            {
                // more or less a theoretical case
                define('LANGUAGE', $_SESSION['LANGUAGE']);
            }
        } 
        else 
        {
            if (isset($_SESSION['USER_ID']))
            {
                $sTempLang = $database->get_one("SELECT `language` FROM `" . TABLE_PREFIX . "users` WHERE `user_id`='" . $_SESSION['USER_ID'] . "'");
                if (NULL != $sTempLang)
                {
                    define('LANGUAGE', $sTempLang);
                } else {
                    define('LANGUAGE', $_SESSION['LANGUAGE']);
                }
            } 
            else 
            {
                define('LANGUAGE', $_SESSION['LANGUAGE']);
            }
        }
    }
    else
    {
        define('LANGUAGE', DEFAULT_LANGUAGE);
    }
}
 
 
// Load Language file
if (!file_exists(LEPTON_PATH.'/languages/'.LANGUAGE.'.php'))
{
    exit('Error loading language file '.LANGUAGE.', please check configuration');
}
else
{
    $aLanguageFile = [
        LANGUAGE.'_add.php',
        LANGUAGE.'_custom.php',
        LANGUAGE.'.php'
    ];
    
    foreach ($aLanguageFile as $sFile)
    {
        $sLanguagePath = LEPTON_PATH.'/languages/';
        if (file_exists($sLanguagePath.$sFile))
        {
            require_once $sLanguagePath.$sFile;
            break;
        }
    }
}