RequestHandler.php

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<?php
declare(strict_types = 1);
namespace ‪TYPO3\CMS\Backend\Http;
 
/*
 * 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!
 */
 
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\RequestHandlerInterface as PsrRequestHandlerInterface;
use ‪TYPO3\CMS\Backend\Routing\Exception\InvalidRequestTokenException;
use ‪TYPO3\CMS\Core\Http\RedirectResponse;
use ‪TYPO3\CMS\Core\Http\RequestHandlerInterface;
use ‪TYPO3\CMS\Core\Http\Response;
use ‪TYPO3\CMS\Core\Utility\GeneralUtility;
 
class ‪RequestHandler implements ‪RequestHandlerInterface, PsrRequestHandlerInterface
{
    public function ‪handleRequest(ServerRequestInterface $request): ResponseInterface
    {
        return $this->‪handle($request);
    }
 
    public function ‪handle(ServerRequestInterface $request): ResponseInterface
    {
        // Use a custom pre-created response for AJAX calls
        // @deprecated since TYPO3 v9, will be removed in TYPO3 v10.0: No prepared $response to RouteDispatcher any longer
        if (TYPO3_REQUESTTYPE & TYPO3_REQUESTTYPE_AJAX) {
            $response = new ‪Response('php://temp', 200, [
                'Content-Type' => 'application/json; charset=utf-8',
                'X-JSON' => 'true'
            ]);
        } else {
            $response = new ‪Response();
        }
        try {
            // Check if the router has the available route and dispatch.
            $dispatcher = GeneralUtility::makeInstance(RouteDispatcher::class);
            return $dispatcher->dispatch($request, $response);
        } catch (‪InvalidRequestTokenException $e) {
            // When token was invalid redirect to login
            $url = GeneralUtility::getIndpEnv('TYPO3_SITE_URL') . TYPO3_mainDir;
            return new ‪RedirectResponse($url);
        }
    }
 
    public function ‪canHandleRequest(ServerRequestInterface $request): bool
    {
        return (bool)(TYPO3_REQUESTTYPE & TYPO3_REQUESTTYPE_BE);
    }
 
    public function ‪getPriority(): int
    {
        return 50;
    }
}