Do not allow to share files into read-only conversations

Signed-off-by: Joas Schilling <coding@schilljs.com>

lib/Collaboration/Collaborators/RoomPlugin.php

@@ -59,6 +59,11 @@ class RoomPlugin implements ISearchPlugin {
 
 		$rooms = $this->manager->getRoomsForParticipant($userId);
 		foreach ($rooms as $room) {
+			if ($room->getReadOnly() === Room::READ_ONLY) {
+				// Can not add new shares to read-only rooms
+				continue;
+			}
+
 			if (stripos($room->getDisplayName($userId), $search) !== false) {
 				$item = $this->roomToSearchResultItem($room, $userId);
 

lib/Share/RoomShareProvider.php

@@ -152,6 +152,10 @@ class RoomShareProvider implements IShareProvider {
 			throw new GenericShareException('Room not found', $this->l->t('Conversation not found'), 404);
 		}
 
+		if ($room->getReadOnly() === Room::READ_ONLY) {
+			throw new GenericShareException('Room not found', $this->l->t('Conversation not found'), 404);
+		}
+
 		try {
 			$room->getParticipant($share->getSharedBy());
 		} catch (ParticipantNotFoundException $e) {