From dcee5284828bea459e69448ac5f3363a584cab73 Mon Sep 17 00:00:00 2001
From: Vincent Petry <pvince81@owncloud.com>
Date: Mon, 20 Jun 2016 22:06:34 +0200
Subject: [PATCH] Don't send activity to non-admins when assigning invisible
 tags (#25192)

---
 apps/systemtags/lib/Activity/Listener.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/apps/systemtags/lib/Activity/Listener.php b/apps/systemtags/lib/Activity/Listener.php
index 9b6597119c..435109053b 100644
--- a/apps/systemtags/lib/Activity/Listener.php
+++ b/apps/systemtags/lib/Activity/Listener.php
@@ -188,6 +188,10 @@ class Listener {
 			$activity->setAffectedUser($user);
 
 			foreach ($tags as $tag) {
+				// don't publish activity for non-admins if tag is invisible
+				if (!$tag->isUserVisible() && !$this->groupManager->isAdmin($user)) {
+					continue;
+				}
 				if ($event->getEvent() === MapperEvent::EVENT_ASSIGN) {
 					$activity->setSubject(Extension::ASSIGN_TAG, [
 						$actor,