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Application.php
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Application.php
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<?php
declare(strict_types = 1);
namespace TYPO3\CMS\Backend\Http;
/*
* 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!
*/
use Psr\Http\Message\ResponseInterface;
use TYPO3\CMS\Core\Core\Bootstrap;
use TYPO3\CMS\Core\Http\AbstractApplication;
use TYPO3\CMS\Core\Http\RedirectResponse;
/**
* Entry point for the TYPO3 Backend (HTTP requests)
*/
class Application extends AbstractApplication
{
/**
* @var string
*/
protected $requestHandler = RequestHandler::class;
/**
* @var string
*/
protected $middlewareStack = 'backend';
/**
* @var Bootstrap
*/
protected $bootstrap;
/**
* Number of subdirectories where the entry script is located, relative to PATH_site
* Usually this is equal to PATH_site = 0
* @var int
*/
protected $entryPointLevel = 1;
/**
* Constructor setting up legacy constant and register available Request Handlers
*
* @param \Composer\Autoload\ClassLoader $classLoader an instance of the class loader
*/
public function __construct($classLoader)
{
$this->defineLegacyConstants();
$this->bootstrap = Bootstrap::getInstance()
->initializeClassLoader($classLoader)
->setRequestType(TYPO3_REQUESTTYPE_BE | (isset($_REQUEST['route']) && strpos($_REQUEST['route'], '/ajax/') === 0 ? TYPO3_REQUESTTYPE_AJAX : 0))
->baseSetup($this->entryPointLevel);
// Redirect to install tool if base configuration is not found
if (!$this->bootstrap->checkIfEssentialConfigurationExists()) {
$this->sendResponse($this->installToolRedirect());
exit;
}
$this->bootstrap->configure();
}
/**
* Define constants and variables
*/
protected function defineLegacyConstants()
{
define('TYPO3_MODE', 'BE');
}
/**
* Create a PSR-7 Response that redirects to the install tool
*
* @return ResponseInterface
*/
protected function installToolRedirect(): ResponseInterface
{
$path = '../' . TYPO3_mainDir . 'install.php';
return new RedirectResponse($path, 302);
}
}