Add $storage->instanceOfStorage to handle instanceof for storage wrappers

1 files changed, 8 insertions, 0 deletions

diff --git a/lib/public/files/storage.php b/lib/public/files/storage.php
index 5ec8ac6245c..323d20db564 100644
--- a/lib/public/files/storage.php
+++ b/lib/public/files/storage.php
@@ -327,4 +327,12 @@ interface Storage {
 	 * @return bool true if the files are stored locally, false otherwise
 	 */
 	public function isLocal();
+
+	/**
+	 * Check if the storage is an instance of $class or is a wrapper for a storage that is an instance of $class
+	 *
+	 * @param string $class
+	 * @return bool
+	 */
+	public function instanceOfStorage($class);
 }