From 19541dd1cecdaa8f234b8ce9fc63b706d4423f31 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20M=C3=BCller?= <thomas.mueller@tmit.eu>
Date: Wed, 23 Mar 2016 11:37:00 +0100
Subject: [PATCH] fixes #23496

---
 apps/dav/appinfo/app.php | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/apps/dav/appinfo/app.php b/apps/dav/appinfo/app.php
index 17596ffecbb..d85a3583bf1 100644
--- a/apps/dav/appinfo/app.php
+++ b/apps/dav/appinfo/app.php
@@ -46,6 +46,8 @@ $eventDispatcher->addListener('OCP\Federation\TrustedServerEvent::remove',
 
 $cm = \OC::$server->getContactsManager();
 $cm->register(function() use ($cm, $app) {
-	$userId = \OC::$server->getUserSession()->getUser()->getUID();
-	$app->setupContactsProvider($cm, $userId);
+	$user = \OC::$server->getUserSession()->getUser();
+	if (!is_null($user)) {
+		$app->setupContactsProvider($cm, $user->getUID());
+	}
 });