RequestHandler.php

Go to the documentation of this file.

<?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\Backend\Http;
 
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\RequestHandlerInterface;
use ‪TYPO3\CMS\Backend\Resource\PublicUrlPrefixer;
use ‪TYPO3\CMS\Backend\Routing\Exception\InvalidRequestTokenException;
use ‪TYPO3\CMS\Backend\Routing\Exception\MissingRequestTokenException;
use ‪TYPO3\CMS\Backend\Routing\RouteRedirect;
use ‪TYPO3\CMS\Backend\Routing\UriBuilder;
use ‪TYPO3\CMS\Core\EventDispatcher\ListenerProvider;
use ‪TYPO3\CMS\Core\Http\RedirectResponse;
use ‪TYPO3\CMS\Core\Resource\Event\GeneratePublicUrlForResourceEvent;
 
class ‪RequestHandler implements RequestHandlerInterface
{
    protected ‪RouteDispatcher ‪$dispatcher;
 
    protected ‪UriBuilder ‪$uriBuilder;
 
    protected ‪ListenerProvider ‪$listenerProvider;
 
    public function ‪__construct(
        ‪RouteDispatcher ‪$dispatcher,
        ‪UriBuilder ‪$uriBuilder,
        ‪ListenerProvider ‪$listenerProvider
    ) {
        $this->dispatcher = ‪$dispatcher;
        $this->uriBuilder = ‪$uriBuilder;
        $this->listenerProvider = ‪$listenerProvider;
    }
 
    protected function ‪resetGlobalsToCurrentRequest(ServerRequestInterface $request)
    {
        if ($request->getQueryParams() !== $_GET) {
            $queryParams = $request->getQueryParams();
            $_GET = $queryParams;
            ‪$GLOBALS['HTTP_GET_VARS'] = $_GET;
        }
        if ($request->getMethod() === 'POST') {
            $parsedBody = $request->getParsedBody();
            if (is_array($parsedBody) && $parsedBody !== $_POST) {
                $_POST = $parsedBody;
                ‪$GLOBALS['HTTP_POST_VARS'] = $_POST;
            }
        }
        ‪$GLOBALS['TYPO3_REQUEST'] = $request;
    }
 
    public function ‪handle(ServerRequestInterface $request): ResponseInterface
    {
        // Make sure all FAL resources have absolute URL paths
        $this->listenerProvider->addListener(
            GeneratePublicUrlForResourceEvent::class,
            PublicUrlPrefixer::class,
            'prefixWithSitePath'
        );
        // safety net to have the fully-added request object globally available as long as
        // there are Core classes that need the Request object but do not get it handed in
        $this->‪resetGlobalsToCurrentRequest($request);
        try {
            // Check if the router has the available route and dispatch.
            return $this->dispatcher->dispatch($request);
        } catch (‪MissingRequestTokenException $e) {
            // When token was missing, then redirect to login, but keep the current route as redirect after login
            $loginUrl = $this->uriBuilder->buildUriWithRedirect(
                'login',
                [],
                ‪RouteRedirect::createFromRoute($request->getAttribute('route'), $request->getQueryParams())
            );
            return new ‪RedirectResponse($loginUrl);
        } catch (‪InvalidRequestTokenException $e) {
            // When token was invalid, then redirect to login
            $loginForm = $this->uriBuilder->buildUriFromRoute('login');
            return new ‪RedirectResponse($loginForm);
        }
    }
}