diff options
Diffstat (limited to 'synapse/rest/client/v2_alpha')
| -rw-r--r-- | synapse/rest/client/v2_alpha/sync.py | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/synapse/rest/client/v2_alpha/sync.py b/synapse/rest/client/v2_alpha/sync.py index 07b5b5dfd5..140ce2704b 100644 --- a/synapse/rest/client/v2_alpha/sync.py +++ b/synapse/rest/client/v2_alpha/sync.py @@ -20,7 +20,6 @@ from synapse.http.servlet import ( ) from synapse.handlers.sync import SyncConfig from synapse.types import StreamToken -from synapse.events import FrozenEvent from synapse.events.utils import ( serialize_event, format_event_for_client_v2_without_room_id, ) @@ -287,9 +286,6 @@ class SyncRestServlet(RestServlet): state_dict = room.state timeline_events = room.timeline.events - state_dict = SyncRestServlet._rollback_state_for_timeline( - state_dict, timeline_events) - state_events = state_dict.values() serialized_state = [serialize(e) for e in state_events] @@ -314,77 +310,6 @@ class SyncRestServlet(RestServlet): return result - @staticmethod - def _rollback_state_for_timeline(state, timeline): - """ - Wind the state dictionary backwards, so that it represents the - state at the start of the timeline, rather than at the end. - - :param dict[(str, str), synapse.events.EventBase] state: the - state dictionary. Will be updated to the state before the timeline. - :param list[synapse.events.EventBase] timeline: the event timeline - :return: updated state dictionary - """ - - result = state.copy() - - for timeline_event in reversed(timeline): - if not timeline_event.is_state(): - continue - - event_key = (timeline_event.type, timeline_event.state_key) - - logger.debug("Considering %s for removal", event_key) - - state_event = result.get(event_key) - if (state_event is None or - state_event.event_id != timeline_event.event_id): - # the event in the timeline isn't present in the state - # dictionary. - # - # the most likely cause for this is that there was a fork in - # the event graph, and the state is no longer valid. Really, - # the event shouldn't be in the timeline. We're going to ignore - # it for now, however. - logger.debug("Found state event %r in timeline which doesn't " - "match state dictionary", timeline_event) - continue - - prev_event_id = timeline_event.unsigned.get("replaces_state", None) - - prev_content = timeline_event.unsigned.get('prev_content') - prev_sender = timeline_event.unsigned.get('prev_sender') - # Empircally it seems possible for the event to have a - # "replaces_state" key but not a prev_content or prev_sender - # markjh conjectures that it could be due to the server not - # having a copy of that event. - # If this is the case the we ignore the previous event. This will - # cause the displayname calculations on the client to be incorrect - if prev_event_id is None or not prev_content or not prev_sender: - logger.debug( - "Removing %r from the state dict, as it is missing" - " prev_content (prev_event_id=%r)", - timeline_event.event_id, prev_event_id - ) - del result[event_key] - else: - logger.debug( - "Replacing %r with %r in state dict", - timeline_event.event_id, prev_event_id - ) - result[event_key] = FrozenEvent({ - "type": timeline_event.type, - "state_key": timeline_event.state_key, - "content": prev_content, - "sender": prev_sender, - "event_id": prev_event_id, - "room_id": timeline_event.room_id, - }) - - logger.debug("New value: %r", result.get(event_key)) - - return result - def register_servlets(hs, http_server): SyncRestServlet(hs).register(http_server) |