From 54ba60dc208a88624e6ad8797fca250d9080885a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20M=C3=BCller?= <thomas.mueller@tmit.eu>
Date: Tue, 30 May 2017 12:14:57 +0200
Subject: [PATCH] Only read from an existing file

---
 lib/private/IntegrityCheck/Helpers/FileAccessHelper.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/private/IntegrityCheck/Helpers/FileAccessHelper.php b/lib/private/IntegrityCheck/Helpers/FileAccessHelper.php
index 37a50c2579f2..f7f6f2c5a9f0 100644
--- a/lib/private/IntegrityCheck/Helpers/FileAccessHelper.php
+++ b/lib/private/IntegrityCheck/Helpers/FileAccessHelper.php
@@ -36,6 +36,9 @@ class FileAccessHelper {
 	 * @return string|false
 	 */
 	public function file_get_contents($filename) {
+		if (!$this->file_exists($filename)) {
+			return false;
+		}
 		return file_get_contents($filename);
 	}