Merge pull request #49265 from nextcloud/feat/dav-trashbin-backend

feat(trashbin): Add backend dav property

Author: Pytal

apps/files_trashbin/lib/Sabre/TrashbinPlugin.php

@@ -9,6 +9,7 @@
 namespace OCA\Files_Trashbin\Sabre;
 
 use OCA\DAV\Connector\Sabre\FilesPlugin;
+use OCA\Files_Trashbin\Trash\ITrashItem;
 use OCP\IPreview;
 use Sabre\DAV\INode;
 use Sabre\DAV\PropFind;
@@ -24,6 +25,7 @@ class TrashbinPlugin extends ServerPlugin {
 	public const TRASHBIN_TITLE = '{http://nextcloud.org/ns}trashbin-title';
 	public const TRASHBIN_DELETED_BY_ID = '{http://nextcloud.org/ns}trashbin-deleted-by-id';
 	public const TRASHBIN_DELETED_BY_DISPLAY_NAME = '{http://nextcloud.org/ns}trashbin-deleted-by-display-name';
+	public const TRASHBIN_BACKEND = '{http://nextcloud.org/ns}trashbin-backend';
 
 	/** @var Server */
 	private $server;
@@ -104,6 +106,14 @@ public function propFind(PropFind $propFind, INode $node) {
 		$propFind->handle(FilesPlugin::MOUNT_TYPE_PROPERTYNAME, function () {
 			return '';
 		});
+
+		$propFind->handle(self::TRASHBIN_BACKEND, function () use ($node) {
+			$fileInfo = $node->getFileInfo();
+			if (!($fileInfo instanceof ITrashItem)) {
+				return '';
+			}
+			return $fileInfo->getTrashBackend()::class;
+		});
 	}
 
 	/**