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<?php |
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declare(strict_types=1); |
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/* |
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* This file is part of the TYPO3 CMS project. |
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* |
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* It is free software; you can redistribute it and/or modify it under |
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* the terms of the GNU General Public License, either version 2 |
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* of the License, or any later version. |
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* |
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* For the full copyright and license information, please read the |
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* LICENSE.txt file that was distributed with this source code. |
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* |
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* The TYPO3 project - inspiring people to share! |
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*/ |
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namespace TYPO3\CMS\Install\Middleware; |
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use Psr\Container\ContainerInterface; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Psr\Http\Server\MiddlewareInterface; |
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use Psr\Http\Server\RequestHandlerInterface; |
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use TYPO3\CMS\Core\Configuration\ConfigurationManager; |
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use TYPO3\CMS\Core\FormProtection\FormProtectionFactory; |
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use TYPO3\CMS\Core\FormProtection\InstallToolFormProtection; |
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use TYPO3\CMS\Core\Http\JsonResponse; |
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use TYPO3\CMS\Install\Controller\InstallerController; |
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use TYPO3\CMS\Install\Service\EnableFileService; |
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use TYPO3\CMS\Install\Service\SessionService; |
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/** |
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* Middleware to walk through the web installation process of TYPO3 |
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* @internal This class is only meant to be used within EXT:install and is not part of the TYPO3 Core API. |
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*/ |
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class Installer implements MiddlewareInterface |
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{ |
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/** |
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* @var ContainerInterface |
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*/ |
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private $container; |
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public function __construct(ContainerInterface $container) |
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{ |
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$this->container = $container; |
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} |
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/** |
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* Handles an Install Tool request when nothing is there |
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* |
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* @param ServerRequestInterface $request |
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* @param RequestHandlerInterface $handler |
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* @return ResponseInterface |
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* @throws \RuntimeException |
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*/ |
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public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface |
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{ |
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if (!$this->canHandleRequest($request)) { |
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return $handler->handle($request); |
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} |
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// Lazy load InstallerController, to instantiate the class and the dependencies only if we handle an install request. |
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$controller = $this->container->get(InstallerController::class); |
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$actionName = $request->getParsedBody()['install']['action'] ?? $request->getQueryParams()['install']['action'] ?? 'init'; |
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$action = $actionName . 'Action'; |
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if ($actionName === 'init' || $actionName === 'mainLayout') { |
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$response = $controller->$action(); |
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} elseif ($actionName === 'checkInstallerAvailable') { |
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$response = new JsonResponse([ |
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'success' => $this->isInstallerAvailable(), |
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]); |
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} elseif ($actionName === 'showInstallerNotAvailable') { |
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$response = $controller->showInstallerNotAvailableAction(); |
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} elseif ($actionName === 'checkEnvironmentAndFolders' |
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|| $actionName === 'showEnvironmentAndFolders' |
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|| $actionName === 'executeEnvironmentAndFolders' |
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) { |
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$this->throwIfInstallerIsNotAvailable(); |
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$response = $controller->$action($request); |
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} else { |
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$this->throwIfInstallerIsNotAvailable(); |
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// With main folder layout available, sessions can be handled |
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$session = new SessionService(); |
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if (!$session->hasSession()) { |
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$session->startSession(); |
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} |
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if ($session->isExpired()) { |
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$session->refreshSession(); |
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} |
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$postValues = $request->getParsedBody()['install']; |
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$sessionTokenOk = false; |
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if (empty($postValues)) { |
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// No post data is there, no token check necessary |
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$sessionTokenOk = true; |
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} |
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if (isset($postValues['token'])) { |
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// A token must be given as soon as there is POST data |
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$formProtection = FormProtectionFactory::get(InstallToolFormProtection::class); |
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if ($actionName === '') { |
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throw new \RuntimeException('No POST action given for token check', 1505647681); |
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} |
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$sessionTokenOk = $formProtection->validateToken($postValues['token'], 'installTool', $actionName); |
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} |
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if (!$sessionTokenOk) { |
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$session->resetSession(); |
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$session->startSession(); |
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throw new \RuntimeException('Invalid session token', 1505647737); |
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} |
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if (!method_exists($controller, $action)) { |
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// Sanitize action method, preventing injecting whatever method name |
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throw new \RuntimeException( |
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'Unknown action method ' . $action . ' in controller InstallerController', |
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1505687700 |
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); |
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} |
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$response = $controller->$action($request); |
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if ($actionName === 'executeDefaultConfiguration') { |
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// Executing last step cleans session |
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$session->destroySession(); |
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} |
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} |
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return $response; |
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} |
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/** |
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* First installation is in progress, if LocalConfiguration does not exist, |
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* or if FIRST_INSTALL file exists. |
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* |
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* @param ServerRequestInterface $request |
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* @return bool Returns always TRUE |
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*/ |
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protected function canHandleRequest(ServerRequestInterface $request): bool |
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{ |
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$localConfigurationFileLocation = (new ConfigurationManager())->getLocalConfigurationFileLocation(); |
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return !@is_file($localConfigurationFileLocation) || EnableFileService::isFirstInstallAllowed(); |
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} |
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/** |
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* @throws \RuntimeException If installer is not available due to missing FIRST_INSTALL |
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*/ |
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protected function throwIfInstallerIsNotAvailable() |
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{ |
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if (!$this->isInstallerAvailable()) { |
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throw new \RuntimeException( |
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'Installer not available', |
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1505637427 |
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); |
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} |
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} |
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/** |
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* @return bool TRUE if FIRST_INSTALL file exists |
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*/ |
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protected function isInstallerAvailable(): bool |
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{ |
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if (EnableFileService::isFirstInstallAllowed()) { |
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return true; |
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} |
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return false; |
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} |
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} |
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TYPO3 /
TYPO3.CMS
