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Use existing current room state if we have it

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This commit is contained in:
Neil Alexander 2022-08-16 13:35:07 +01:00
parent 804653e551
commit 5819b4a7ce
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GPG key ID: A02A2019A2BB0944
1 changed files with 11 additions and 7 deletions
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18
syncapi/streams/stream_pdu.go
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@ -304,7 +304,7 @@ func (p *PDUStreamProvider) addRoomDeltaToResponse(
}
// Applies the history visibility rules
events, err := applyHistoryVisibilityFilter(ctx, p.DB, p.rsAPI, delta.RoomID, device.UserID, eventFilter.Limit, recentEvents)
events, err := applyHistoryVisibilityFilter(ctx, p.DB, p.rsAPI, delta.RoomID, device.UserID, eventFilter.Limit, recentEvents, nil)
if err != nil {
logrus.WithError(err).Error("unable to apply history visibility filter")
}
@ -364,15 +364,19 @@ func applyHistoryVisibilityFilter(
rsAPI roomserverAPI.SyncRoomserverAPI,
roomID, userID string,
limit int,
stateEvents []*gomatrixserverlib.HeaderedEvent,
recentEvents []*gomatrixserverlib.HeaderedEvent,
) ([]*gomatrixserverlib.HeaderedEvent, error) {
// We need to make sure we always include the latest states events, if they are in the timeline.
// We grep at least limit * 2 events, to ensure we really get the needed events.
stateEvents, err := db.CurrentState(ctx, roomID, &gomatrixserverlib.StateFilter{Limit: limit * 2}, nil)
if err != nil {
// Not a fatal error, we can continue without the stateEvents,
// they are only needed if there are state events in the timeline.
logrus.WithError(err).Warnf("failed to get current room state")
if stateEvents == nil {
var err error
stateEvents, err = db.CurrentState(ctx, roomID, &gomatrixserverlib.StateFilter{Limit: limit * 2}, nil)
if err != nil {
// Not a fatal error, we can continue without the stateEvents,
// they are only needed if there are state events in the timeline.
logrus.WithError(err).Warnf("failed to get current room state")
}
}
alwaysIncludeIDs := make(map[string]struct{}, len(stateEvents))
for _, ev := range stateEvents {
@ -499,7 +503,7 @@ func (p *PDUStreamProvider) getJoinResponseForCompleteSync(
events := recentEvents
// Only apply history visibility checks if the response is for joined rooms
if !isPeek {
events, err = applyHistoryVisibilityFilter(ctx, p.DB, p.rsAPI, roomID, device.UserID, eventFilter.Limit, recentEvents)
events, err = applyHistoryVisibilityFilter(ctx, p.DB, p.rsAPI, roomID, device.UserID, eventFilter.Limit, recentEvents, stateEvents)
if err != nil {
logrus.WithError(err).Error("unable to apply history visibility filter")
}