LittleDemon WebShell

<?php
/**
 * OpenMage
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * https://opensource.org/licenses/osl-3.0.php
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@magento.com so we can send you a copy immediately.
 *
 * @category    Mage
 * @package     Mage
 * @copyright  Copyright (c) 2006-2020 Magento, Inc. (https://www.magento.com)
 * @copyright  Copyright (c) 2022 The OpenMage Contributors (https://www.openmage.org)
 * @license    https://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */

chdir(__DIR__);
require 'app/bootstrap.php';
require 'app/Mage.php';

if (!Mage::isInstalled()) {
    echo "Application is not installed yet, please complete install wizard first.";
    exit;
}

// Only for urls, don't remove this
$_SERVER['SCRIPT_NAME'] = str_replace(basename(__FILE__), 'index.php', $_SERVER['SCRIPT_NAME']);
$_SERVER['SCRIPT_FILENAME'] = str_replace(basename(__FILE__), 'index.php', $_SERVER['SCRIPT_FILENAME']);

try {
    Mage::app('admin')->setUseSessionInUrl(false);
} catch (Exception $e) {
    Mage::printException($e);
    exit;
}

umask(0);

$disabledFuncs = array_map('trim', preg_split("/,|\s+/", strtolower(ini_get('disable_functions'))));
$isShellDisabled = in_array('shell_exec', $disabledFuncs)
    || !str_contains(strtolower(PHP_OS), 'win')
    || !shell_exec('which expr 2>/dev/null')
    || !shell_exec('which ps 2>/dev/null')
    || !shell_exec('which sed 2>/dev/null');

try {
    if (stripos(PHP_OS, 'win') === false) {
        $options = getopt('m::');
        if (isset($options['m'])) {
            if ($options['m'] == 'always') {
                $cronMode = 'always';
            } elseif ($options['m'] == 'default') {
                $cronMode = 'default';
            } else {
                Mage::throwException('Unrecognized cron mode was defined');
            }
        } else if (!$isShellDisabled) {
            $fileName = escapeshellarg(basename(__FILE__));
            $cronPath = escapeshellarg(__DIR__ . '/cron.sh');

            shell_exec(escapeshellcmd("/bin/sh $cronPath $fileName -mdefault 1") . " &");
            shell_exec(escapeshellcmd("/bin/sh $cronPath $fileName -malways 1") . " &");
            exit;
        }
    }

    Mage::getConfig()->init()->loadEventObservers('crontab');
    Mage::app()->addEventArea('crontab');
    if ($isShellDisabled) {
        Mage::dispatchEvent('always');
        Mage::dispatchEvent('default');
    } else {
        Mage::dispatchEvent($cronMode);
    }
} catch (Exception $e) {
    Mage::printException($e);
    exit(1);
}