From 65fa37ac5e8b3e661b853b71cfe6a264d5369bdc Mon Sep 17 00:00:00 2001 From: Mark Haines Date: Fri, 2 Sep 2016 15:50:37 +0100 Subject: [PATCH 1/2] Only return new device messages in /sync --- synapse/handlers/sync.py | 2 +- synapse/storage/deviceinbox.py | 8 +++++--- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py index 14f2032af..b5962f4f5 100644 --- a/synapse/handlers/sync.py +++ b/synapse/handlers/sync.py @@ -576,7 +576,7 @@ class SyncHandler(object): logger.debug("Getting messages up to %d", now_token.to_device_key) messages, stream_id = yield self.store.get_new_messages_for_device( - user_id, device_id, now_token.to_device_key + user_id, device_id, since_stream_id, now_token.to_device_key ) logger.debug("Got messages up to %d: %r", stream_id, messages) sync_result_builder.now_token = now_token.copy_and_replace( diff --git a/synapse/storage/deviceinbox.py b/synapse/storage/deviceinbox.py index 2fa0a218b..68116b039 100644 --- a/synapse/storage/deviceinbox.py +++ b/synapse/storage/deviceinbox.py @@ -85,7 +85,7 @@ class DeviceInboxStore(SQLBaseStore): defer.returnValue(self._device_inbox_id_gen.get_current_token()) def get_new_messages_for_device( - self, user_id, device_id, current_stream_id, limit=100 + self, user_id, device_id, last_stream_id, current_stream_id, limit=100 ): """ Args: @@ -101,11 +101,13 @@ class DeviceInboxStore(SQLBaseStore): sql = ( "SELECT stream_id, message_json FROM device_inbox" " WHERE user_id = ? AND device_id = ?" - " AND stream_id <= ?" + " AND ? < stream_id AND stream_id <= ?" " ORDER BY stream_id ASC" " LIMIT ?" ) - txn.execute(sql, (user_id, device_id, current_stream_id, limit)) + txn.execute(sql, ( + user_id, device_id, last_stream_id, current_stream_id, limit + )) messages = [] for row in txn.fetchall(): stream_pos = row[0] From f2690c64230557701692e16264f2e65a21edab4d Mon Sep 17 00:00:00 2001 From: Mark Haines Date: Fri, 2 Sep 2016 19:23:22 +0100 Subject: [PATCH 2/2] Fix membership changes to be idempotent --- synapse/handlers/room_member.py | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/synapse/handlers/room_member.py b/synapse/handlers/room_member.py index 3ba5335af..ba49075a2 100644 --- a/synapse/handlers/room_member.py +++ b/synapse/handlers/room_member.py @@ -85,6 +85,12 @@ class RoomMemberHandler(BaseHandler): prev_event_ids=prev_event_ids, ) + # Check if this event matches the previous membership event for the user. + duplicate = yield msg_handler.deduplicate_state_event(event, context) + if duplicate is not None: + # Discard the new event since this membership change is a no-op. + return + yield msg_handler.handle_new_client_event( requester, event,