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<?php |
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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\Extbase\Mvc; |
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use Psr\Container\ContainerInterface; |
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use Psr\EventDispatcher\EventDispatcherInterface; |
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use Psr\Http\Message\ResponseInterface; |
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use TYPO3\CMS\Core\SingletonInterface; |
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use TYPO3\CMS\Extbase\Annotation\IgnoreValidation; |
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use TYPO3\CMS\Extbase\Event\Mvc\AfterRequestDispatchedEvent; |
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use TYPO3\CMS\Extbase\Http\ForwardResponse; |
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use TYPO3\CMS\Extbase\Mvc\Controller\ControllerInterface; |
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use TYPO3\CMS\Extbase\Mvc\Exception\InfiniteLoopException; |
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use TYPO3\CMS\Extbase\Mvc\Exception\InvalidControllerException; |
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use TYPO3\CMS\Extbase\Mvc\Exception\StopActionException; |
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use TYPO3\CMS\Extbase\Object\ObjectManagerInterface; |
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/** |
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* Dispatches requests to the controller which was specified by the request and |
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* returns the response the controller generated. |
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* @internal only to be used within Extbase, not part of TYPO3 Core API. |
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*/ |
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class Dispatcher implements SingletonInterface |
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{ |
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/** |
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* @var ObjectManagerInterface A reference to the object manager |
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*/ |
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protected $objectManager; |
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/** |
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* @var ContainerInterface |
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*/ |
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private $container; |
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/** |
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* @var EventDispatcherInterface |
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*/ |
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protected $eventDispatcher; |
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/** |
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* @var array |
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*/ |
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protected $settings = []; |
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/** |
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* Constructs the global dispatcher |
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* |
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* @param ObjectManagerInterface $objectManager A reference to the object manager |
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* @param ContainerInterface $container |
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* @param EventDispatcherInterface $eventDispatcher |
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*/ |
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public function __construct( |
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ObjectManagerInterface $objectManager, |
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ContainerInterface $container, |
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EventDispatcherInterface $eventDispatcher |
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) { |
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$this->objectManager = $objectManager; |
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$this->container = $container; |
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$this->eventDispatcher = $eventDispatcher; |
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} |
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/** |
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* Dispatches a request to a controller and initializes the security framework. |
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* |
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* @param RequestInterface $request The request to dispatch |
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* @return ResponseInterface |
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* @throws Exception\InfiniteLoopException |
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*/ |
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public function dispatch(RequestInterface $request): ResponseInterface |
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{ |
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$dispatchLoopCount = 0; |
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while (!$request->isDispatched()) { |
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if ($dispatchLoopCount++ > 99) { |
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throw new InfiniteLoopException('Could not ultimately dispatch the request after ' . $dispatchLoopCount . ' iterations. Most probably, a @' . IgnoreValidation::class . ' annotation is missing on re-displaying a form with validation errors.', 1217839467); |
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} |
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$controller = $this->resolveController($request); |
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try { |
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$response = $controller->processRequest($request); |
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if ($response instanceof ForwardResponse) { |
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$request = static::buildRequestFromCurrentRequestAndForwardResponse($request, $response); |
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} |
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} catch (StopActionException $ignoredException) { |
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$response = $ignoredException->getResponse(); |
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} |
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} |
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if (!isset($response)) { |
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// This fallback is no longer needed once the StopActionException is removed and replaced with proper |
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// redirect and forward response objects and we always get a response back from the controller. |
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$response = new \TYPO3\CMS\Core\Http\Response(); |
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} |
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$this->eventDispatcher->dispatch(new AfterRequestDispatchedEvent($request, $response)); |
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return $response; |
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} |
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/** |
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* Finds and instantiates a controller that matches the current request. |
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* If no controller can be found, an instance of NotFoundControllerInterface is returned. |
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* |
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* @param RequestInterface $request The request to dispatch |
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* @return Controller\ControllerInterface |
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* @throws Exception\InvalidControllerException |
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*/ |
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protected function resolveController(RequestInterface $request) |
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{ |
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$controllerObjectName = $request->getControllerObjectName(); |
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if ($this->container->has($controllerObjectName)) { |
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$controller = $this->container->get($controllerObjectName); |
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} else { |
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$controller = $this->objectManager->get($controllerObjectName); |
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} |
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if (!$controller instanceof ControllerInterface) { |
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throw new InvalidControllerException( |
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'Invalid controller "' . $request->getControllerObjectName() . '". The controller must implement the TYPO3\\CMS\\Extbase\\Mvc\\Controller\\ControllerInterface.', |
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1476109646 |
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); |
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} |
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return $controller; |
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} |
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/** |
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* @internal only to be used within Extbase, not part of TYPO3 Core API. |
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* @todo: make this a private method again as soon as the tests, that fake the dispatching of requests, are refactored. |
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*/ |
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public static function buildRequestFromCurrentRequestAndForwardResponse(Request $currentRequest, ForwardResponse $forwardResponse): Request |
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{ |
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$request = clone $currentRequest; |
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$request->setDispatched(false); |
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$request->setControllerActionName($forwardResponse->getActionName()); |
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if ($forwardResponse->getControllerName() !== null) { |
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$request->setControllerName($forwardResponse->getControllerName()); |
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} |
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if ($forwardResponse->getExtensionName() !== null) { |
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$request->setControllerExtensionName($forwardResponse->getExtensionName()); |
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} |
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if ($forwardResponse->getArguments() !== []) { |
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$request->setArguments($forwardResponse->getArguments()); |
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} |
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$request->setOriginalRequest($currentRequest); |
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$request->setOriginalRequestMappingResults($forwardResponse->getArgumentsValidationResult()); |
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return $request; |
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} |
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} |
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TYPO3 /
TYPO3.CMS
