TcaDisplayConditions.php

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<?php
 
declare(strict_types=1);
 
/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */
 
namespace ‪TYPO3\CMS\Core\Hooks;
 
use ‪TYPO3\CMS\Core\Authentication\BackendUserAuthentication;
use ‪TYPO3\CMS\Core\Utility\ExtensionManagementUtility;
 
class ‪TcaDisplayConditions
{
    public function ‪isExtensionInstalled(array $parameters): bool
    {
        $extension = $parameters['conditionParameters'][0] ?? '';
        if (!empty($extension)) {
            return ‪ExtensionManagementUtility::isLoaded($extension);
        }
        return false;
    }
 
    public function ‪isIPLockEnabled(array $parameters): bool
    {
        $type = $parameters['conditionParameters'][0] ?? 'backend';
        if ($type === 'backend') {
            return (int)‪$GLOBALS['TYPO3_CONF_VARS']['BE']['ipLock'] > 0 || (int)‪$GLOBALS['TYPO3_CONF_VARS']['BE']['lockIPv6'] > 0;
        }
        if ($type === 'frontend') {
            return (int)‪$GLOBALS['TYPO3_CONF_VARS']['FE']['ipLock'] > 0 || (int)‪$GLOBALS['TYPO3_CONF_VARS']['FE']['lockIPv6'] > 0;
        }
        return false;
    }
 
    public function ‪isRecordCurrentUser(array $parameters): bool
    {
        $backendUser = $this->‪getBackendUser();
        $isCurrentUser = (int)($parameters['record']['uid'] ?? 0) === (int)$backendUser->user[$backendUser->userid_column];
        return strtolower($parameters['conditionParameters'][0] ?? 'true') !== 'true' ? !$isCurrentUser : $isCurrentUser;
    }
    protected function ‪getBackendUser(): ‪BackendUserAuthentication
    {
        return ‪$GLOBALS['BE_USER'];
    }
}