Remove deleted groups from app restrictions fixes #15823

Signed-off-by: Greta Doci <gretadoci@gmail.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/lib/base.php b/lib/base.php
index 30d57153de9..7812922c168 100644
--- a/lib/base.php
+++ b/lib/base.php
@@ -717,6 +717,7 @@ class OC {
 		self::registerEncryptionHooks();
 		self::registerAccountHooks();
 		self::registerResourceCollectionHooks();
+		self::registerAppRestrictionsHooks();
 
 		// Make sure that the application class is not loaded before the database is setup
 		if ($systemConfig->getValue("installed", false)) {
@@ -848,6 +849,30 @@ class OC {
 		\OCP\Util::connectHook('OC_User', 'changeUser', $hookHandler, 'changeUserHook');
 	}
 
+	private static function registerAppRestrictionsHooks() {
+		$groupManager = self::$server->query(\OCP\IGroupManager::class);
+		$groupManager->listen ('\OC\Group', 'postDelete', function (\OCP\IGroup $group) {
+			$appManager = self::$server->getAppManager();
+			$apps = $appManager->getEnabledAppsForGroup($group);
+			foreach ($apps as $appId) {
+				$restrictions = $appManager->getAppRestriction($appId);
+				if (empty($restrictions)) {
+					continue;
+				}
+				$key = array_search($group->getGID(), $restrictions);
+				unset($restrictions[$key]);
+				$restrictions = array_values($restrictions);
+				if (empty($restrictions)) {
+					$appManager->disableApp($appId);
+				}
+				else{
+					$appManager->enableAppForGroups($appId, $restrictions);
+				}
+
+			}
+		});
+	}
+
 	private static function registerResourceCollectionHooks() {
 		\OC\Collaboration\Resources\Listener::register(\OC::$server->getEventDispatcher());
 	}