[BUGFIX] Allow lowlevel cleaner missing files check for filenames with anchor

The lowlevel cleaner "missing files" detects files like "filepath/file.pdf#page-15"
as missing as the "#" is considered part of the filename.

A new check now properly detects this.

Resolves: #84999
Releases: master, 9.5
Change-Id: Ic394f7d34e993807e932ebc3ac438f31f50dcb32
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/63819


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Susanne Moog <look@susi.dev>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Susanne Moog <look@susi.dev>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>

typo3/sysext/lowlevel/Classes/Command/MissingFilesCommand.php

@@ -174,7 +174,7 @@ If you want to get more detailed information, use the --verbose option.')
 
         // Traverse the references and check if the files exists
         while ($record = $result->fetch()) {
-            $fileName = $record['ref_string'];
+            $fileName = $this->getFileNameWithoutAnchor($record['ref_string']);
             if (empty($record['softref_key']) && !@is_file(Environment::getPublicPath() . '/' . $fileName)) {
                 $missingReferences[$fileName][$record['hash']] = $this->formatReferenceIndexEntryToString($record);
             }
@@ -207,7 +207,7 @@ If you want to get more detailed information, use the --verbose option.')
 
         // Traverse the references and check if the files exists
         while ($record = $result->fetch()) {
-            $fileName = $record['ref_string'];
+            $fileName = $this->getFileNameWithoutAnchor($record['ref_string']);
             if (!@is_file(Environment::getPublicPath() . '/' . $fileName)) {
                 $missingReferences[] = $fileName . ' - ' . $record['hash'] . ' - ' . $this->formatReferenceIndexEntryToString($record);
             }
@@ -215,6 +215,20 @@ If you want to get more detailed information, use the --verbose option.')
         return $missingReferences;
     }
 
+    /**
+     * Remove a possible anchor like 'my-path/file.pdf#page15'
+     *
+     * @param string $fileName a filename as found in sys_refindex.ref_string
+     * @return string the filename but leaving everything behind #page15 behind
+     */
+    protected function getFileNameWithoutAnchor(string $fileName): string
+    {
+        if (strpos($fileName, '#') !== false) {
+            [$fileName] = explode('#', $fileName);
+        }
+        return $fileName;
+    }
+
     /**
      * Removes all references in the sys_file_reference where files were not found
      *