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\Hooks;
+
+use Psr\EventDispatcher\EventDispatcherInterface;
+use Symfony\Component\DependencyInjection\Attribute\Autoconfigure;
+use TYPO3\CMS\Backend\Middleware\SudoModeInterceptor;
+use TYPO3\CMS\Backend\Security\SudoMode\Access\AccessFactory;
+use TYPO3\CMS\Backend\Security\SudoMode\Access\AccessStorage;
+use TYPO3\CMS\Backend\Security\SudoMode\Event\SudoModeRequiredEvent;
+use TYPO3\CMS\Backend\Security\SudoMode\Exception\VerificationRequiredException;
+use TYPO3\CMS\Core\DataHandling\DataHandler;
+use TYPO3\CMS\Core\Schema\TcaSchemaFactory;
+
+/**
+ * DataHandler hook to ensure that columns that require a specific
+ * authenticationContext are covered by a recent step-up authentication
+ *
+ * @internal
+ */
+#[Autoconfigure(public: true)]
+final readonly class DataHandlerAuthenticationContext
+{
+    public function __construct(
+        private AccessFactory $factory,
+        private AccessStorage $storage,
+        private TcaSchemaFactory $tcaSchemaFactory,
+        private SudoModeInterceptor $sudoModeInterceptor,
+        private EventDispatcherInterface $eventDispatcher,
+    ) {}
+
+    public function processDatamap_postProcessFieldArray(
+        string $mode,
+        string $tableName,
+        string|int $id,
+        array $fieldArray,
+        DataHandler $dataHandler
+    ): void {
+        if ($dataHandler->isImporting || $dataHandler->bypassAccessCheckForRecords) {
+            return;
+        }
+        $request = $this->sudoModeInterceptor->currentRequest;
+        if ($request === null) {
+            // Not in a backend request where the sudoMode interceptor middleware was active
+            return;
+        }
+
+        $schema = $this->tcaSchemaFactory->get($tableName);
+        $subjects = [];
+        $id = (string)$id;
+        foreach ($schema->getFields() as $columnName => $fieldInformation) {
+            $authenticationContextConfig = $fieldInformation->getConfiguration()['authenticationContext'] ?? null;
+            if ($authenticationContextConfig === null) {
+                continue;
+            }
+            $subject = $this->factory->buildTableAccessSubject(
+                $tableName,
+                $columnName,
+                str_starts_with($id, 'NEW') ? 'NEW' : $id,
+                $authenticationContextConfig
+            );
+            $grants = $this->storage->findGrantsBySubject($subject);
+            $hasGrant = $grants !== [];
+            $subjects[$columnName] = [
+                'subject' => $subject,
+                'grants' => $grants,
+                'hasGrant' => $hasGrant,
+            ];
+        }
+
+        $requiredSubjects = [];
+        foreach ($fieldArray as $identifier => $value) {
+            $subjectInfo = $subjects[$identifier] ?? null;
+            if ($subjectInfo === null) {
+                continue;
+            }
+            if ($subjectInfo['hasGrant']) {
+                continue;
+            }
+
+            $subject = $subjectInfo['subject'];
+            $requiredSubjects[$subject->getIdentity()] = $subject;
+        }
+
+        if ($requiredSubjects !== []) {
+            $claim = $this->factory->buildClaimForSubjectRequest($request, self::class, ...array_values($requiredSubjects));
+
+            $event = new SudoModeRequiredEvent($claim);
+            $this->eventDispatcher->dispatch($event);
+            if ($event->isVerificationRequired()) {
+                throw (new VerificationRequiredException(
+                    'Authentication Context Confirmation Required',
+                    1743597646
+                ))->withClaim($claim);
+            }
+        }
+
+        $this->consumeNonRepeatableGrants($subjects);
+    }
+
+    private function consumeNonRepeatableGrants(array $subjects): void
+    {
+        // Consume (remove from storage) non-repeatable grants.
+        // Non-repeatable grants have been marked with `once` in the subject configration.
+        foreach ($subjects as $columnName => $subjectInfo) {
+            if ($subjectInfo['subject']->isOnce()) {
+                foreach ($subjectInfo['grants'] as $grant) {
+                    $this->storage->removeGrant($grant);
+                }
+            }
+        }
+    }
+}