[BUGFIX] Fix cache clear task

The task to clear caches related to files results in abnormal
termination of the program. This is caused because the DataMapper used
to clear caches expects the BE_USER to either be null or fully
authenticated.

This fix copies over the existing logic to authenticate from the other
cache clear task. It also adds a condition ensuring the authentication
logic runs only once, as a second authentication is redundant if both
tasks get executed.

Classes/Features/CacheInvalidation/Domain/Model/Task/FlushFrontendPageCacheTask.php

@@ -68,8 +68,13 @@ protected function getDataHandler(): DataHandler
         $dataHandler = GeneralUtility::makeInstance(DataHandler::class);
         /** @var CommandLineUserAuthentication $user */
         $user = $GLOBALS['BE_USER'];
-        $user->authenticate();
+
+        if (!$user->user) {
+            $user->authenticate();
+        }
+
         $dataHandler->BE_USER = $user;
+
         /** @psalm-suppress InternalProperty */
         $dataHandler->admin = true;
         return $dataHandler;

Classes/Features/FileEdgeCacheInvalidator/Domain/Service/FileEdgeCacheInvalidationService.php

@@ -31,6 +31,7 @@
 
 use Doctrine\DBAL\Result;
 use In2code\In2publishCore\CommonInjection\LocalDatabaseInjection;
+use TYPO3\CMS\Core\Authentication\CommandLineUserAuthentication;
 use TYPO3\CMS\Core\DataHandling\DataHandler;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
 
@@ -142,11 +143,29 @@ protected function resolveRecordsToPages(RecordCollection $recordCollection): vo
 
     protected function clearCachesForPages(RecordCollection $recordCollection): void
     {
-        $dataHandler = GeneralUtility::makeInstance(DataHandler::class);
+        $dataHandler = $this->getDataHandler();
         $dataHandler->start([], []);
         $pages = $recordCollection->getPages();
         foreach ($pages as $page) {
             $dataHandler->clear_cacheCmd($page);
         }
     }
+
+    protected function getDataHandler(): DataHandler
+    {
+        /** @var DataHandler $dataHandler */
+        $dataHandler = GeneralUtility::makeInstance(DataHandler::class);
+        /** @var CommandLineUserAuthentication $user */
+        $user = $GLOBALS['BE_USER'];
+
+        if (!$user->user) {
+            $user->authenticate();
+        }
+
+        $dataHandler->BE_USER = $user;
+
+        /** @psalm-suppress InternalProperty */
+        $dataHandler->admin = true;
+        return $dataHandler;
+    }
 }