typo3/sysext/backend/Classes/Http/Application.php

   1 <?php
   2 namespace TYPO3\CMS\Backend\Http;
   3
   4 /*
   5  * This file is part of the TYPO3 CMS project.
   6  *
   7  * It is free software; you can redistribute it and/or modify it under
   8  * the terms of the GNU General Public License, either version 2
   9  * of the License, or any later version.
  10  *
  11  * For the full copyright and license information, please read the
  12  * LICENSE.txt file that was distributed with this source code.
  13  *
  14  * The TYPO3 project - inspiring people to share!
  15  */
  16 use TYPO3\CMS\Core\Core\ApplicationInterface;
  17 use TYPO3\CMS\Core\Core\Bootstrap;
  18
  19 /**
  20  * Entry point for the TYPO3 Backend (HTTP requests)
  21  */
  22 class Application implements ApplicationInterface
  23 {
  24     /**
  25      * @var Bootstrap
  26      */
  27     protected $bootstrap;
  28
  29     /**
  30      * @var string
  31      */
  32     protected $entryPointPath = 'typo3/';
  33
  34     /**
  35      * @var \Psr\Http\Message\ServerRequestInterface
  36      */
  37     protected $request;
  38
  39     /**
  40      * All available request handlers that can handle backend requests (non-CLI)
  41      * @var array
  42      */
  43     protected $availableRequestHandlers = array(
  44         \TYPO3\CMS\Backend\Http\RequestHandler::class,
  45         \TYPO3\CMS\Backend\Http\BackendModuleRequestHandler::class,
  46         \TYPO3\CMS\Backend\Http\AjaxRequestHandler::class
  47     );
  48
  49     /**
  50      * Constructor setting up legacy constant and register available Request Handlers
  51      *
  52      * @param \Composer\Autoload\ClassLoader $classLoader an instance of the class loader
  53      */
  54     public function __construct($classLoader)
  55     {
  56         $this->defineLegacyConstants();
  57
  58         $this->bootstrap = Bootstrap::getInstance()
  59             ->initializeClassLoader($classLoader)
  60             ->setRequestType(TYPO3_REQUESTTYPE_BE | (!empty($_GET['ajaxID']) ? TYPO3_REQUESTTYPE_AJAX : 0))
  61             ->baseSetup($this->entryPointPath);
  62
  63         // Redirect to install tool if base configuration is not found
  64         if (!$this->bootstrap->checkIfEssentialConfigurationExists()) {
  65             $this->bootstrap->redirectToInstallTool($this->entryPointPath);
  66         }
  67
  68         foreach ($this->availableRequestHandlers as $requestHandler) {
  69             $this->bootstrap->registerRequestHandlerImplementation($requestHandler);
  70         }
  71
  72         $this->bootstrap->configure();
  73     }
  74
  75     /**
  76      * Set up the application and shut it down afterwards
  77      *
  78      * @param callable $execute
  79      * @return void
  80      */
  81     public function run(callable $execute = null)
  82     {
  83         $this->request = \TYPO3\CMS\Core\Http\ServerRequestFactory::fromGlobals();
  84         // see below when this option is set and Bootstrap::defineTypo3RequestTypes() for more details
  85         if (TYPO3_REQUESTTYPE & TYPO3_REQUESTTYPE_AJAX) {
  86             $this->request = $this->request->withAttribute('isAjaxRequest', true);
  87         } elseif (isset($this->request->getQueryParams()['M'])) {
  88             $this->request = $this->request->withAttribute('isModuleRequest', true);
  89         }
  90
  91         $this->bootstrap->handleRequest($this->request);
  92
  93         if ($execute !== null) {
  94             call_user_func($execute);
  95         }
  96
  97         $this->bootstrap->shutdown();
  98     }
  99
 100     /**
 101      * Define constants and variables
 102      */
 103     protected function defineLegacyConstants()
 104     {
 105         define('TYPO3_MODE', 'BE');
 106     }
 107 }