Application.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\Backend\Http;
 
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\RequestHandlerInterface;
use TYPO3\CMS\Core\Configuration\ConfigurationManager;
use ‪TYPO3\CMS\Core\Context\Context;
use ‪TYPO3\CMS\Core\Context\DateTimeAspect;
use ‪TYPO3\CMS\Core\Context\VisibilityAspect;
use ‪TYPO3\CMS\Core\Core\Environment;
use ‪TYPO3\CMS\Core\Core\SystemEnvironmentBuilder;
use ‪TYPO3\CMS\Core\Http\AbstractApplication;
use ‪TYPO3\CMS\Core\Http\RedirectResponse;
 
class ‪Application extends ‪AbstractApplication
{
    protected ‪$configurationManager;
 
    protected ‪$context;
 
    public function ‪__construct(
        RequestHandlerInterface ‪$requestHandler,
        ConfigurationManager ‪$configurationManager,
        ‪Context ‪$context
    ) {
        $this->requestHandler = ‪$requestHandler;
        $this->configurationManager = ‪$configurationManager;
        $this->context = ‪$context;
    }
 
    protected function ‪handle(ServerRequestInterface $request): ResponseInterface
    {
        if (!$this->‪checkIfEssentialConfigurationExists()) {
            return $this->‪installToolRedirect();
        }
 
        // Add applicationType attribute to request: This is backend and maybe backend ajax.
        $applicationType = ‪SystemEnvironmentBuilder::REQUESTTYPE_BE;
        if (strpos($request->getQueryParams()['route'] ?? '', '/ajax/') === 0) {
            $applicationType |= ‪SystemEnvironmentBuilder::REQUESTTYPE_AJAX;
        }
        $request = $request->withAttribute('applicationType', $applicationType);
 
        // Set up the initial context
        $this->‪initializeContext();
        return parent::handle($request);
    }
 
    protected function ‪checkIfEssentialConfigurationExists(): bool
    {
        return file_exists($this->configurationManager->getLocalConfigurationFileLocation())
            && file_exists(‪Environment::getLegacyConfigPath() . '/PackageStates.php');
    }
 
    protected function ‪installToolRedirect(): ResponseInterface
    {
        return new RedirectResponse('./install.php', 302);
    }
 
    protected function ‪initializeContext(): void
    {
        $this->context->setAspect('date', new DateTimeAspect(new \DateTimeImmutable('@' . ‪$GLOBALS['EXEC_TIME'])));
        $this->context->setAspect('visibility', new VisibilityAspect(true, true));
    }
}