EidHandler.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\Frontend\Middleware;
 
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\MiddlewareInterface;
use Psr\Http\Server\RequestHandlerInterface;
use ‪TYPO3\CMS\Core\Exception;
use ‪TYPO3\CMS\Core\Http\DispatcherInterface;
use ‪TYPO3\CMS\Core\Http\NullResponse;
use ‪TYPO3\CMS\Core\Http\Response;
 
class ‪EidHandler implements MiddlewareInterface
{
    protected ‪$dispatcher;
 
    public function ‪__construct(‪DispatcherInterface ‪$dispatcher)
    {
        $this->dispatcher = ‪$dispatcher;
    }
 
    public function ‪process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
    {
        $eID = $request->getParsedBody()['eID'] ?? $request->getQueryParams()['eID'] ?? null;
 
        if ($eID === null) {
            return $handler->handle($request);
        }
 
        // Remove any output produced until now
        ob_clean();
 
        if (!is_string($eID)) {
            return (new ‪Response())->withStatus(400, 'Invalid eID');
        }
 
        $target = ‪$GLOBALS['TYPO3_CONF_VARS']['FE']['eID_include'][$eID] ?? null;
        if (empty($target)) {
            return (new ‪Response())->withStatus(404, 'eID not registered');
        }
 
        $request = $request->withAttribute('target', $target);
        return $this->dispatcher->dispatch($request) ?? new ‪NullResponse();
    }
}