From dc467c74e90f15719d7c12a765d1b3d2c538931e Mon Sep 17 00:00:00 2001
From: Robin Appelman <robin@icewind.nl>
Date: Mon, 13 Mar 2017 16:06:19 +0100
Subject: [PATCH] dont allow empty wildcard search

Signed-off-by: Robin Appelman <robin@icewind.nl>
---
 lib/private/Files/Cache/Cache.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/private/Files/Cache/Cache.php b/lib/private/Files/Cache/Cache.php
index a966d621c5..672f3c97f4 100644
--- a/lib/private/Files/Cache/Cache.php
+++ b/lib/private/Files/Cache/Cache.php
@@ -598,6 +598,10 @@ class Cache implements ICache {
 		// normalize pattern
 		$pattern = $this->normalize($pattern);
 
+		if ($pattern === '%%') {
+			return [];
+		}
+
 
 		$sql = '
 			SELECT `fileid`, `storage`, `path`, `parent`, `name`,