TypoScriptFrontendInitialization.php

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<?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\Frontend\Middleware;
 
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\MiddlewareInterface;
use Psr\Http\Server\RequestHandlerInterface;
use ‪TYPO3\CMS\Core\Authentication\BackendUserAuthentication;
use ‪TYPO3\CMS\Core\Context\Context;
use ‪TYPO3\CMS\Core\Context\UserAspect;
use ‪TYPO3\CMS\Core\Context\WorkspaceAspect;
use ‪TYPO3\CMS\Core\Routing\PageArguments;
use ‪TYPO3\CMS\Core\Site\Entity\Site;
use ‪TYPO3\CMS\Core\Type\Bitmask\Permission;
use ‪TYPO3\CMS\Core\Utility\GeneralUtility;
use ‪TYPO3\CMS\Frontend\Controller\ErrorController;
use ‪TYPO3\CMS\Frontend\Controller\TypoScriptFrontendController;
use ‪TYPO3\CMS\Frontend\Page\PageAccessFailureReasons;
 
class ‪TypoScriptFrontendInitialization implements MiddlewareInterface
{
    protected ‪$context;
 
    public function ‪__construct(‪Context ‪$context)
    {
        $this->context = ‪$context;
    }
 
    public function ‪process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
    {
        ‪$GLOBALS['TYPO3_REQUEST'] = $request;
        $site = $request->getAttribute('site', null);
        $pageArguments = $request->getAttribute('routing', null);
        if (!$pageArguments instanceof ‪PageArguments) {
            // Page Arguments must be set in order to validate. This middleware only works if PageArguments
            // is available, and is usually combined with the Page Resolver middleware
            return GeneralUtility::makeInstance(ErrorController::class)->pageNotFoundAction(
                $request,
                'Page Arguments could not be resolved',
                ['code' => ‪PageAccessFailureReasons::INVALID_PAGE_ARGUMENTS]
            );
        }
 
        $controller = GeneralUtility::makeInstance(
            TypoScriptFrontendController::class,
            $this->context,
            $site,
            $request->getAttribute('language', $site->getDefaultLanguage()),
            $pageArguments,
            $request->getAttribute('frontend.user', null)
        );
        if ($pageArguments->getArguments()['no_cache'] ?? $request->getParsedBody()['no_cache'] ?? false) {
            $controller->set_no_cache('&no_cache=1 has been supplied, so caching is disabled! URL: "' . (string)$request->getUri() . '"');
        }
        // Usually only set by the PageArgumentValidator
        if ($request->getAttribute('noCache', false)) {
            $controller->no_cache = 1;
        }
 
        $controller->determineId($request);
 
        // No access? Then remove user and re-evaluate the page id
        if ($controller->isBackendUserLoggedIn() && !‪$GLOBALS['BE_USER']->doesUserHaveAccess($controller->page, ‪Permission::PAGE_SHOW)) {
            unset(‪$GLOBALS['BE_USER']);
            // Register an empty backend user as aspect
            $this->‪setBackendUserAspect(null);
            $controller->determineId($request);
        }
 
        // Make TSFE globally available
        ‪$GLOBALS['TSFE'] = $controller;
        return $handler->handle($request);
    }
 
    protected function ‪setBackendUserAspect(?BackendUserAuthentication $user): void
    {
        $this->context->setAspect('backend.user', GeneralUtility::makeInstance(UserAspect::class, $user));
        $this->context->setAspect('workspace', GeneralUtility::makeInstance(WorkspaceAspect::class, $user ? $user->workspace : 0));
    }
}