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typo3/sysext/install/Classes/Controller/AbstractController.php

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+<?php
+declare(strict_types = 1);
+namespace TYPO3\CMS\Install\Controller;
+
+/*
+ * 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!
+ */
+
+use Psr\Http\Message\ServerRequestInterface;
+use TYPO3\CMS\Core\Core\Environment;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Fluid\View\StandaloneView;
+
+/**
+ * Controller abstract for shared parts of the install tool
+ * @internal This class is a specific controller implementation and is not considered part of the Public TYPO3 API.
+ */
+class AbstractController
+{
+    /**
+     * Helper method to initialize a standalone view instance.
+     *
+     * @param ServerRequestInterface $request
+     * @param string $templatePath
+     * @return StandaloneView
+     * @internal param string $template
+     */
+    protected function initializeStandaloneView(ServerRequestInterface $request, string $templatePath): StandaloneView
+    {
+        $viewRootPath = GeneralUtility::getFileAbsFileName('EXT:install/Resources/Private/');
+        $view = GeneralUtility::makeInstance(StandaloneView::class);
+        $view->getRequest()->setControllerExtensionName('Install');
+        $view->setTemplatePathAndFilename($viewRootPath . 'Templates/' . $templatePath);
+        $view->setLayoutRootPaths([$viewRootPath . 'Layouts/']);
+        $view->setPartialRootPaths([$viewRootPath . 'Partials/']);
+        $view->assignMultiple([
+            'controller' => $request->getQueryParams()['install']['controller'] ?? 'maintenance',
+            'context' => $request->getQueryParams()['install']['context'] ?? '',
+            'composerMode' => Environment::isComposerMode(),
+        ]);
+        return $view;
+    }
+
+    /**
+     * Some actions like the database analyzer and the upgrade wizards need additional
+     * bootstrap actions performed.
+     *
+     * Those actions can potentially fatal if some old extension is loaded that triggers
+     * a fatal in ext_localconf or ext_tables code! Use only if really needed.
+     */
+    protected function loadExtLocalconfDatabaseAndExtTables()
+    {
+        \TYPO3\CMS\Core\Core\Bootstrap::loadTypo3LoadedExtAndExtLocalconf(false);
+        \TYPO3\CMS\Core\Core\Bootstrap::unsetReservedGlobalVariables();
+        \TYPO3\CMS\Core\Core\Bootstrap::loadBaseTca(false);
+        \TYPO3\CMS\Core\Core\Bootstrap::loadExtTables(false);
+    }
+}