[BUGFIX] Don't index files from hidden file references, fixes #206

ChangeLog

@@ -9,6 +9,7 @@ Upcoming version
 [TASK]    Add label to "Index Overview" widget (shown since TYPO3 12), and use only one color in the bar chart
 [TASK]    Use ContextualFeedbackSeverity instead of AbstractMessage to set severity
 [TASK]    Register upgrade wizards using attributes
+[BUGFIX]  Don't index files from hidden file references. Thanks to Kamel Ben Yedder, https://github.com/tpwd/ke_search/issues/206
 
 Version 5.2.0, 8 December 2023
 [!!!]     The pagebrowser is now rendered in a different way (using the pagination API). If you used a custom template for the pagebrowser you will have to adopt it. Have a look at Resources/Private/Partials/PageBrowser.html

Classes/Indexer/Types/Page.php

@@ -983,8 +983,10 @@ public function indexFiles($fileObjects, $ttContentRow, $feGroupsPages, $tags)
                 $isIndexable = false;
                 if ($fileObject instanceof FileInterface) {
                     $file = ($fileObject instanceof FileReference) ? $fileObject->getOriginalFile() : $fileObject;
+                    $isHiddenFileReference = ($fileObject instanceof FileReference) && $fileObject->getProperty('hidden');
                     $isIndexable = $file instanceof \TYPO3\CMS\Core\Resource\File
-                        && FileService::isFileIndexable($file, $this->indexerConfig);
+                        && FileService::isFileIndexable($file, $this->indexerConfig)
+                        && !$isHiddenFileReference;
                 } else {
                     $errorMessage = 'Could not index file in content element #' . $ttContentRow['uid'] . ' (no file object).';
                     $this->pObj->logger->warning($errorMessage);