TYPO3 v15 dev-main snapshot ()

2026-08-10 22:31:31 +02:00
commit 3e43c11539
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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\Install\Controller;
+
+use TYPO3\CMS\Core\Security\ContentSecurityPolicy\Directive;
+use TYPO3\CMS\Core\Security\ContentSecurityPolicy\Policy;
+use TYPO3\CMS\Core\Security\ContentSecurityPolicy\SourceKeyword;
+use TYPO3\CMS\Core\Security\ContentSecurityPolicy\SourceScheme;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+
+/**
+ * @internal This class is a specific implementation and is not considered part of the Public TYPO3 API.
+ */
+trait ControllerTrait
+{
+    /**
+     * Using fixed Content-Security-Policy for Admin Tool (extensions and database might not be available)
+     */
+    protected function createContentSecurityPolicy(): Policy
+    {
+        return GeneralUtility::makeInstance(Policy::class)
+            ->default(SourceKeyword::self)
+            // script-src 'nonce-...' required for importmaps
+            ->extend(Directive::ScriptSrc, SourceKeyword::nonceProxy)
+            // `style-src 'unsafe-inline'` required for lit in safari and firefox to allow inline <style> tags
+            // (for browsers that do not support https://caniuse.com/mdn-api_shadowroot_adoptedstylesheets)
+            ->extend(Directive::StyleSrc, SourceKeyword::unsafeInline)
+            ->set(Directive::StyleSrcAttr, SourceKeyword::unsafeInline)
+            ->extend(Directive::ImgSrc, SourceScheme::data);
+    }
+}