fix(sharing): indicate trashed files when listing orphan shares

A shared file moved to the trashbin keeps its file id, so it is flagged
as an orphan share while still existing in the filecache. Detect this
case and tell the admin the file is in the share owner's trashbin
instead of the generic lost-access message.

AI-assistant: Claude Code 2.1.156 (Claude Opus 4.8)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Signed-off-by: Julius Knorr <jus@bitgrid.net>

Author: juliusknorr

apps/files_sharing/lib/Command/DeleteOrphanShares.php

@@ -52,7 +52,11 @@ public function execute(InputInterface $input, OutputInterface $output): int {
 				$exists = $this->orphanHelper->fileExists($share['fileid']);
 				$output->writeln("<info>{$share['target']}</info> owned by <info>{$share['owner']}</info>");
 				if ($exists) {
-					$output->writeln("  file still exists but the share owner lost access to it, run <info>occ info:file {$share['fileid']}</info> for more information about the file");
+					if ($this->orphanHelper->isInTrashbin($share['fileid'])) {
+						$output->writeln("  file is in the trashbin of the share owner, run <info>occ info:file {$share['fileid']}</info> for more information about the file");
+					} else {
+						$output->writeln("  file still exists but the share owner lost access to it, run <info>occ info:file {$share['fileid']}</info> for more information about the file");
+					}
 				} else {
 					$output->writeln('  file no longer exists');
 				}

apps/files_sharing/lib/OrphanHelper.php

@@ -56,6 +56,15 @@ public function fileExists(int $fileId): bool {
 		return $query->executeQuery()->fetchOne() !== false;
 	}
 
+	public function isInTrashbin(int $fileId): bool {
+		$query = $this->connection->getQueryBuilder();
+		$query->select('path')
+			->from('filecache')
+			->where($query->expr()->eq('fileid', $query->createNamedParameter($fileId, IQueryBuilder::PARAM_INT)));
+		$path = $query->executeQuery()->fetchOne();
+		return $path !== false && str_starts_with($path, 'files_trashbin/');
+	}
+
 	/**
 	 * @return \Traversable<int, array{id: int, owner: string, fileid: int, target: string}>
 	 */