From cb9fc6c9a2d23b19bdd2f2d5cd3af19a03a4c9f7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Julius=20H=C3=A4rtl?= <jus@bitgrid.net>
Date: Tue, 3 Aug 2021 09:47:27 +0200
Subject: [PATCH] Check for null value to avoid TypeError in the group manager
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Signed-off-by: Julius Härtl <jus@bitgrid.net>
---
 lib/Service/PermissionService.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/Service/PermissionService.php b/lib/Service/PermissionService.php
index e5a6edfcd..347863ece 100644
--- a/lib/Service/PermissionService.php
+++ b/lib/Service/PermissionService.php
@@ -308,6 +308,10 @@ class PermissionService {
 	}
 
 	public function canCreate() {
+		if ($this->userId === null) {
+			return false;
+		}
+
 		$groups = $this->getGroupLimitList();
 		if (count($groups) === 0) {
 			return true;