TargetPageIdViewHelper.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\Redirects\ViewHelpers;
 
use ‪TYPO3\CMS\Core\LinkHandling\Exception\UnknownLinkHandlerException;
use ‪TYPO3\CMS\Core\LinkHandling\Exception\UnknownUrnException;
use ‪TYPO3\CMS\Core\LinkHandling\LinkService;
use ‪TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
use TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileWithRenderStatic;
 
class ‪TargetPageIdViewHelper extends AbstractViewHelper
{
    use CompileWithRenderStatic;
 
    public function ‪initializeArguments()
    {
        $this->registerArgument('target', 'string', 'The target of the redirect.', true);
    }
 
    public static function ‪renderStatic(array $arguments, \Closure $renderChildrenClosure, RenderingContextInterface $renderingContext): string
    {
        if (!strpos($arguments['target'], 't3://page', 0) === 0) {
            return '';
        }
 
        try {
            $linkService = GeneralUtility::makeInstance(LinkService::class);
            $resolvedLink = $linkService->resolveByStringRepresentation($arguments['target']);
            return $resolvedLink['pageuid'] ?? '';
        } catch (‪UnknownUrnException|‪UnknownLinkHandlerException $e) {
            return '';
        }
    }
}