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typo3/sysext/extbase/Classes/Mvc/Dispatcher.php

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+<?php
+namespace TYPO3\CMS\Extbase\Mvc;
+
+/*
+ * 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!
+ */
+
+/**
+ * Dispatches requests to the controller which was specified by the request and
+ * returns the response the controller generated.
+ * @internal only to be used within Extbase, not part of TYPO3 Core API.
+ */
+class Dispatcher implements \TYPO3\CMS\Core\SingletonInterface
+{
+    /**
+     * @var \TYPO3\CMS\Extbase\Object\ObjectManagerInterface A reference to the object manager
+     */
+    protected $objectManager;
+
+    /**
+     * @var \TYPO3\CMS\Extbase\SignalSlot\Dispatcher
+     */
+    protected $signalSlotDispatcher;
+
+    /**
+     * @var array
+     */
+    protected $settings = [];
+
+    /**
+     * @param \TYPO3\CMS\Extbase\SignalSlot\Dispatcher $signalSlotDispatcher
+     */
+    public function injectSignalSlotDispatcher(\TYPO3\CMS\Extbase\SignalSlot\Dispatcher $signalSlotDispatcher)
+    {
+        $this->signalSlotDispatcher = $signalSlotDispatcher;
+    }
+
+    /**
+     * Constructs the global dispatcher
+     *
+     * @param \TYPO3\CMS\Extbase\Object\ObjectManagerInterface $objectManager A reference to the object manager
+     */
+    public function __construct(\TYPO3\CMS\Extbase\Object\ObjectManagerInterface $objectManager)
+    {
+        $this->objectManager = $objectManager;
+    }
+
+    /**
+     * Dispatches a request to a controller and initializes the security framework.
+     *
+     * @param \TYPO3\CMS\Extbase\Mvc\RequestInterface $request The request to dispatch
+     * @param \TYPO3\CMS\Extbase\Mvc\ResponseInterface $response The response, to be modified by the controller
+     * @throws Exception\InfiniteLoopException
+     */
+    public function dispatch(\TYPO3\CMS\Extbase\Mvc\RequestInterface $request, \TYPO3\CMS\Extbase\Mvc\ResponseInterface $response)
+    {
+        $dispatchLoopCount = 0;
+        while (!$request->isDispatched()) {
+            if ($dispatchLoopCount++ > 99) {
+                throw new \TYPO3\CMS\Extbase\Mvc\Exception\InfiniteLoopException('Could not ultimately dispatch the request after ' . $dispatchLoopCount . ' iterations. Most probably, a @' . \TYPO3\CMS\Extbase\Annotation\IgnoreValidation::class . ' annotation is missing on re-displaying a form with validation errors.', 1217839467);
+            }
+            $controller = $this->resolveController($request);
+            try {
+                $controller->processRequest($request, $response);
+            } catch (\TYPO3\CMS\Extbase\Mvc\Exception\StopActionException $ignoredException) {
+            }
+        }
+        $this->emitAfterRequestDispatchSignal($request, $response);
+    }
+
+    /**
+     * Emits a signal after a request was dispatched
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     */
+    protected function emitAfterRequestDispatchSignal(\TYPO3\CMS\Extbase\Mvc\RequestInterface $request, \TYPO3\CMS\Extbase\Mvc\ResponseInterface $response)
+    {
+        $this->signalSlotDispatcher->dispatch(__CLASS__, 'afterRequestDispatch', [$request, $response]);
+    }
+
+    /**
+     * Finds and instanciates a controller that matches the current request.
+     * If no controller can be found, an instance of NotFoundControllerInterface is returned.
+     *
+     * @param \TYPO3\CMS\Extbase\Mvc\RequestInterface $request The request to dispatch
+     * @throws Exception\InvalidControllerException
+     * @return \TYPO3\CMS\Extbase\Mvc\Controller\ControllerInterface
+     */
+    protected function resolveController(\TYPO3\CMS\Extbase\Mvc\RequestInterface $request)
+    {
+        $controllerObjectName = $request->getControllerObjectName();
+        $controller = $this->objectManager->get($controllerObjectName);
+        if (!$controller instanceof \TYPO3\CMS\Extbase\Mvc\Controller\ControllerInterface) {
+            throw new \TYPO3\CMS\Extbase\Mvc\Exception\InvalidControllerException(
+                'Invalid controller "' . $request->getControllerObjectName() . '". The controller must implement the TYPO3\\CMS\\Extbase\\Mvc\\Controller\\ControllerInterface.',
+                1476109646
+            );
+        }
+        return $controller;
+    }
+}