[BUGFIX] Convert eID null return values to a NullResponse
[Packages/TYPO3.CMS.git] / typo3 / sysext / frontend / Classes / Middleware / ContentLengthResponseHeader.php
1 <?php
2 declare(strict_types = 1);
3 namespace TYPO3\CMS\Frontend\Middleware;
4
5 /*
6 * This file is part of the TYPO3 CMS project.
7 *
8 * It is free software; you can redistribute it and/or modify it under
9 * the terms of the GNU General Public License, either version 2
10 * of the License, or any later version.
11 *
12 * For the full copyright and license information, please read the
13 * LICENSE.txt file that was distributed with this source code.
14 *
15 * The TYPO3 project - inspiring people to share!
16 */
17
18 use Psr\Http\Message\ResponseInterface;
19 use Psr\Http\Message\ServerRequestInterface;
20 use Psr\Http\Server\MiddlewareInterface;
21 use Psr\Http\Server\RequestHandlerInterface;
22 use TYPO3\CMS\Core\Http\NullResponse;
23 use TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController;
24
25 /**
26 * Send content-length header.
27 * Notice that all HTML content outside the length of the content-length header will be cut off!
28 * Therefore content of unknown length from included PHP-scripts and if admin users are logged
29 * in (admin panel might show...) or if debug mode is turned on, we disable it!
30 *
31 * @internal
32 */
33 class ContentLengthResponseHeader implements MiddlewareInterface
34 {
35
36 /**
37 * Adds the content length
38 *
39 * @param ServerRequestInterface $request
40 * @param RequestHandlerInterface $handler
41 * @return ResponseInterface
42 */
43 public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
44 {
45 $response = $handler->handle($request);
46 if (
47 !($response instanceof NullResponse)
48 && $GLOBALS['TSFE'] instanceof TypoScriptFrontendController
49 && $GLOBALS['TSFE']->isOutputting()) {
50 if (
51 (!isset($GLOBALS['TSFE']->config['config']['enableContentLengthHeader']) || $GLOBALS['TSFE']->config['config']['enableContentLengthHeader'])
52 && !$GLOBALS['TSFE']->isBackendUserLoggedIn() && !$GLOBALS['TYPO3_CONF_VARS']['FE']['debug']
53 && !$GLOBALS['TSFE']->config['config']['debug'] && !$GLOBALS['TSFE']->doWorkspacePreview()
54 ) {
55 $response = $response->withHeader('Content-Length', (string)$response->getBody()->getSize());
56 }
57 }
58 return $response;
59 }
60 }