From e1762998b3a7a453b033340c62a3915b7288a95d Mon Sep 17 00:00:00 2001
From: michaelletzgus <michaelletzgus@users.noreply.github.com>
Date: Sun, 4 Feb 2018 15:59:23 +0100
Subject: [PATCH] Fix undefined index problem

Nextcloud 13RC4, error in logfile, triggered by "occ config:list":

Invalid argument supplied for foreach() at lib/private/AppConfig.php#297
PHP	Undefined index: workflowengine at lib/private/AppConfig.php#297

Fix: Check if index exists in array before using it.
---
 lib/private/AppConfig.php | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/lib/private/AppConfig.php b/lib/private/AppConfig.php
index 4e102522550b8..10dc656e5cb1e 100644
--- a/lib/private/AppConfig.php
+++ b/lib/private/AppConfig.php
@@ -293,9 +293,11 @@ public function getValues($app, $key) {
 	public function getFilteredValues($app) {
 		$values = $this->getValues($app, false);
 
-		foreach ($this->sensitiveValues[$app] as $sensitiveKey) {
-			if (isset($values[$sensitiveKey])) {
-				$values[$sensitiveKey] = IConfig::SENSITIVE_VALUE;
+		if (array_key_exists($app, $this->sensitiveValues)) {
+			foreach ($this->sensitiveValues[$app] as $sensitiveKey) {
+				if (isset($values[$sensitiveKey])) {
+					$values[$sensitiveKey] = IConfig::SENSITIVE_VALUE;
+				}
 			}
 		}