From 8b66f3518e0034bf31803b468ea49549bf843c8a Mon Sep 17 00:00:00 2001
From: Daniel Kesselberg <mail@danielkesselberg.de>
Date: Fri, 6 Jun 2025 11:29:16 +0200
Subject: [PATCH] fix: hide guests group when searching for principals

Follow-up for https://github.com/nextcloud/server/pull/52914

Signed-off-by: Daniel Kesselberg <mail@danielkesselberg.de>
---
 apps/dav/lib/DAV/GroupPrincipalBackend.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/apps/dav/lib/DAV/GroupPrincipalBackend.php b/apps/dav/lib/DAV/GroupPrincipalBackend.php
index ddbd64bdda1..70a0099330c 100644
--- a/apps/dav/lib/DAV/GroupPrincipalBackend.php
+++ b/apps/dav/lib/DAV/GroupPrincipalBackend.php
@@ -188,6 +188,10 @@ class GroupPrincipalBackend implements BackendInterface {
 					$groups = $this->groupManager->search($value, $searchLimit);
 
 					$results[] = array_reduce($groups, function (array $carry, IGroup $group) use ($restrictGroups) {
+						if ($group->hideFromCollaboration()) {
+							return $carry;
+						}
+
 						$gid = $group->getGID();
 						// is sharing restricted to groups only?
 						if ($restrictGroups !== false) {