103 lines
3.5 KiB
PHP
103 lines
3.5 KiB
PHP
<?php
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declare(strict_types = 1);
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namespace TYPO3\CMS\Backend\Http;
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/*
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* This file is part of the TYPO3 CMS project.
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*
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* It is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License, either version 2
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* of the License, or any later version.
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*
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* For the full copyright and license information, please read the
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* LICENSE.txt file that was distributed with this source code.
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*
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* The TYPO3 project - inspiring people to share!
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*/
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use Psr\Http\Message\ResponseInterface;
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use Psr\Http\Message\ServerRequestInterface;
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use Psr\Http\Server\RequestHandlerInterface as PsrRequestHandlerInterface;
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use TYPO3\CMS\Backend\Routing\Exception\InvalidRequestTokenException;
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use TYPO3\CMS\Core\Http\RedirectResponse;
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use TYPO3\CMS\Core\Http\RequestHandlerInterface;
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use TYPO3\CMS\Core\Http\Response;
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use TYPO3\CMS\Core\Utility\GeneralUtility;
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/**
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* General RequestHandler for the TYPO3 Backend. This is used for all Backend requests, including AJAX routes.
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*
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* If a get/post parameter "route" is set, the Backend Routing is called and searches for a
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* matching route inside the Router. The corresponding controller / action is called then which returns the response.
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*
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* The following get/post parameters are evaluated here:
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* - route
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* - token
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*/
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class RequestHandler implements RequestHandlerInterface, PsrRequestHandlerInterface
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{
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/**
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* Handles any backend request
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*
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* @param ServerRequestInterface $request
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* @return ResponseInterface
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*/
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public function handleRequest(ServerRequestInterface $request): ResponseInterface
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{
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return $this->handle($request);
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}
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/**
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* Handles a backend request, after finishing running middlewares
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* Dispatch the request to the appropriate controller through the
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* Backend Dispatcher which resolves the routing
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*
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* @param ServerRequestInterface $request
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* @return ResponseInterface
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*/
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public function handle(ServerRequestInterface $request): ResponseInterface
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{
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// Use a custom pre-created response for AJAX calls
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// @deprecated since TYPO3 v9, will be removed in TYPO3 v10.0: No prepared $response to RouteDispatcher any longer
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if (TYPO3_REQUESTTYPE & TYPO3_REQUESTTYPE_AJAX) {
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$response = new Response('php://temp', 200, [
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'Content-Type' => 'application/json; charset=utf-8',
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'X-JSON' => 'true'
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]);
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} else {
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$response = new Response();
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}
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try {
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// Check if the router has the available route and dispatch.
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$dispatcher = GeneralUtility::makeInstance(RouteDispatcher::class);
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return $dispatcher->dispatch($request, $response);
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} catch (InvalidRequestTokenException $e) {
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// When token was invalid redirect to login
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$url = GeneralUtility::getIndpEnv('TYPO3_SITE_URL') . TYPO3_mainDir;
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return new RedirectResponse($url);
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}
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}
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/**
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* This request handler can handle any backend request.
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*
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* @param ServerRequestInterface $request
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* @return bool If the request is BE request TRUE otherwise FALSE
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*/
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public function canHandleRequest(ServerRequestInterface $request): bool
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{
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return (bool)(TYPO3_REQUESTTYPE & TYPO3_REQUESTTYPE_BE);
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}
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/**
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* Returns the priority - how eager the handler is to actually handle the
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* request.
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*
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* @return int The priority of the request handler.
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*/
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public function getPriority(): int
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{
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return 50;
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}
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}
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