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Make test pass

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This commit is contained in:
Till Faelligen 2022-10-25 14:33:32 +02:00
parent 313cb3fd19
commit 706df0d729
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GPG key ID: 3DF82D8AB9211D4E
1 changed files with 10 additions and 8 deletions
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18
syncapi/streams/stream_pdu.go
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@ -227,14 +227,10 @@ func (p *PDUStreamProvider) addRoomDeltaToResponse(
stateFilter *gomatrixserverlib.StateFilter,
req *types.SyncRequest,
) (types.StreamPosition, error) {
if delta.MembershipPos > 0 && delta.Membership == gomatrixserverlib.Leave {
// make sure we don't leak recent events after the leave event.
// TODO: History visibility makes this somewhat complex to handle correctly. For example:
// TODO: This doesn't work for join -> leave in a single /sync request (see events prior to join).
// TODO: This will fail on join -> leave -> sensitive msg -> join -> leave
// in a single /sync request
// This is all "okay" assuming history_visibility == "shared" which it is by default.
r.To = delta.MembershipPos
originalLimit := eventFilter.Limit
if r.Backwards {
eventFilter.Limit = int(r.From - r.To)
}
recentStreamEvents, limited, err := snapshot.RecentEvents(
ctx, delta.RoomID, r,
@ -303,6 +299,12 @@ func (p *PDUStreamProvider) addRoomDeltaToResponse(
logrus.WithError(err).Error("unable to apply history visibility filter")
}
if r.Backwards && len(events) > originalLimit {
// We're going backwards and the events are ordered chronologically, so take the last `limit` events
events = events[len(events)-originalLimit:]
limited = true
}
if len(delta.StateEvents) > 0 {
updateLatestPosition(delta.StateEvents[len(delta.StateEvents)-1].EventID())
}