typo3/sysext/adminpanel/Classes/Middleware/AdminPanelRenderer.php

   1 <?php
   2 declare(strict_types = 1);
   3
   4 namespace TYPO3\CMS\Adminpanel\Middleware;
   5
   6 /*
   7  * This file is part of the TYPO3 CMS project.
   8  *
   9  * It is free software; you can redistribute it and/or modify it under
  10  * the terms of the GNU General Public License, either version 2
  11  * of the License, or any later version.
  12  *
  13  * For the full copyright and license information, please read the
  14  * LICENSE.txt file that was distributed with this source code.
  15  *
  16  * The TYPO3 project - inspiring people to share!
  17  */
  18
  19 use Psr\Http\Message\ResponseInterface;
  20 use Psr\Http\Message\ServerRequestInterface;
  21 use Psr\Http\Server\MiddlewareInterface;
  22 use Psr\Http\Server\RequestHandlerInterface;
  23 use TYPO3\CMS\Adminpanel\Controller\MainController;
  24 use TYPO3\CMS\Adminpanel\Utility\StateUtility;
  25 use TYPO3\CMS\Core\Http\NullResponse;
  26 use TYPO3\CMS\Core\Http\Stream;
  27 use TYPO3\CMS\Core\Utility\GeneralUtility;
  28 use TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController;
  29
  30 /**
  31  * Render the admin panel via PSR-15 middleware
  32  *
  33  * @internal
  34  */
  35 class AdminPanelRenderer implements MiddlewareInterface
  36 {
  37
  38     /**
  39      * Render the admin panel if activated
  40      * @param ServerRequestInterface $request
  41      * @param RequestHandlerInterface $handler
  42      * @return ResponseInterface
  43      */
  44     public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
  45     {
  46         $response = $handler->handle($request);
  47         if (
  48             !($response instanceof NullResponse)
  49             && $GLOBALS['TSFE'] instanceof TypoScriptFrontendController
  50             && $GLOBALS['TSFE']->isOutputting()
  51             && StateUtility::isActivatedForUser()
  52             && StateUtility::isActivatedInTypoScript()
  53             && !StateUtility::isHiddenForUser()
  54         ) {
  55             $mainController = GeneralUtility::makeInstance(MainController::class);
  56             $body = $response->getBody();
  57             $body->rewind();
  58             $contents = $response->getBody()->getContents();
  59             $content = str_ireplace(
  60                 '</body>',
  61                 $mainController->render($request) . '</body>',
  62                 $contents
  63             );
  64             $body = new Stream('php://temp', 'rw');
  65             $body->write($content);
  66             $response = $response->withBody($body);
  67         }
  68         return $response;
  69     }
  70 }