TYPO3 v15 dev-main snapshot ()

2026-08-10 22:31:00 +02:00
commit f9941541b7
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+<?php
+
+declare(strict_types=1);
+
+/*
+ * 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!
+ */
+
+namespace TYPO3\CMS\Backend\Controller;
+
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use TYPO3\CMS\Backend\Attribute\AsController;
+use TYPO3\CMS\Backend\Routing\UriBuilder;
+use TYPO3\CMS\Core\Authentication\BackendUserAuthentication;
+use TYPO3\CMS\Core\FormProtection\BackendFormProtection;
+use TYPO3\CMS\Core\FormProtection\FormProtectionFactory;
+use TYPO3\CMS\Core\Http\RedirectResponse;
+use TYPO3\CMS\Core\SysLog\Action\Login as SystemLogLoginAction;
+use TYPO3\CMS\Core\SysLog\Error as SystemLogErrorClassification;
+use TYPO3\CMS\Core\SysLog\Type as SystemLogType;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+/**
+ * Script Class for logging a user out.
+ * Does not display any content, just calls the logout-function for the current user and then makes a redirect.
+ * @internal This class is a specific Backend controller implementation and is not considered part of the Public TYPO3 API.
+ */
+#[AsController]
+readonly class LogoutController
+{
+    public function __construct(
+        protected UriBuilder $uriBuilder,
+        protected FormProtectionFactory $formProtectionFactory
+    ) {}
+
+    /**
+     * Injects the request object for the current request or subrequest
+     * As this controller goes only through the main() method, it is rather simple for now
+     * This will be split up in an abstract controller once proper routing/dispatcher is in place.
+     *
+     * @param ServerRequestInterface $request the current request
+     * @return ResponseInterface the response with the content
+     */
+    public function logoutAction(ServerRequestInterface $request): ResponseInterface
+    {
+        $this->processLogout($request);
+
+        $redirectUrl = $request->getParsedBody()['redirect'] ?? $request->getQueryParams()['redirect'] ?? '';
+        $redirectUrl = GeneralUtility::sanitizeLocalUrl($redirectUrl, $request);
+        if (empty($redirectUrl)) {
+            $redirectUrl = (string)$this->uriBuilder->buildUriFromRoute('login', [], UriBuilder::ABSOLUTE_URL);
+        }
+        return new RedirectResponse(GeneralUtility::locationHeaderUrl($redirectUrl, $request), 303);
+    }
+
+    /**
+     * Performs the logout processing
+     */
+    protected function processLogout(ServerRequestInterface $request): void
+    {
+        if (empty($this->getBackendUser()->user['username'])) {
+            return;
+        }
+        // Logout written to log
+        $this->getBackendUser()->writelog(SystemLogType::LOGIN, SystemLogLoginAction::LOGOUT, SystemLogErrorClassification::MESSAGE, null, 'User %s logged out from TYPO3 Backend', [$this->getBackendUser()->user['username']]);
+        /** @var BackendFormProtection $backendFormProtection */
+        $backendFormProtection = $this->formProtectionFactory->createFromRequest($request);
+        $backendFormProtection->removeSessionTokenFromRegistry();
+        $this->getBackendUser()->logoff();
+    }
+
+    protected function getBackendUser(): BackendUserAuthentication
+    {
+        return $GLOBALS['BE_USER'];
+    }
+}