2 declare(strict_types
= 1);
3 namespace TYPO3\CMS\Frontend\Middleware
;
6 * This file is part of the TYPO3 CMS project.
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.
12 * For the full copyright and license information, please read the
13 * LICENSE.txt file that was distributed with this source code.
15 * The TYPO3 project - inspiring people to share!
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
;
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!
33 class ContentLengthResponseHeader
implements MiddlewareInterface
37 * Adds the content length
39 * @param ServerRequestInterface $request
40 * @param RequestHandlerInterface $handler
41 * @return ResponseInterface
43 public function process(ServerRequestInterface
$request, RequestHandlerInterface
$handler): ResponseInterface
45 $response = $handler->handle($request);
47 !($response instanceof NullResponse
)
48 && $GLOBALS['TSFE'] instanceof TypoScriptFrontendController
49 && $GLOBALS['TSFE']->isOutputting()) {
51 (!isset($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()
55 $response = $response->withHeader('Content-Length', (string)$response->getBody()->getSize());