From 1a8965b488e436099bf6e1bbd025d652e9791fe7 Mon Sep 17 00:00:00 2001
From: Bjoern Schiessle <bjoern@schiessle.org>
Date: Fri, 12 May 2017 12:43:22 +0200
Subject: [PATCH] handle case if no valid client identifier is given

Signed-off-by: Bjoern Schiessle <bjoern@schiessle.org>
---
 apps/oauth2/lib/Db/ClientMapper.php | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/apps/oauth2/lib/Db/ClientMapper.php b/apps/oauth2/lib/Db/ClientMapper.php
index 8531f6d007c..38751a2e5cf 100644
--- a/apps/oauth2/lib/Db/ClientMapper.php
+++ b/apps/oauth2/lib/Db/ClientMapper.php
@@ -46,6 +46,11 @@ class ClientMapper extends Mapper {
 		$result = $qb->execute();
 		$row = $result->fetch();
 		$result->closeCursor();
+
+		if (!is_array($row)) {
+			$row = [];
+		}
+
 		return Client::fromRow($row);
 	}