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Don't try to backfill if we reached the beginning of the room

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Till Faelligen 2023-07-11 12:58:56 +02:00
parent 1bc7faf63c
commit fa655837a3
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GPG key ID: ACCDC9606D472758
1 changed files with 8 additions and 7 deletions
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15
syncapi/routing/messages.go
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@ -253,8 +253,8 @@ func OnIncomingMessagesRequest(
}
// If start and end are equal, we either reached the beginning or something else
// is wrong. To avoid endless loops from clients, set end to 0 an empty string
if start == end {
// is wrong. If we have nothing to return set end to 0.
if start == end || len(clientEvents) == 0 {
end = types.TopologyToken{}
}
@ -286,11 +286,6 @@ func OnIncomingMessagesRequest(
})...)
}
// If we didn't return any events, set the end to an empty string, so it will be omitted
// in the response JSON.
if len(res.Chunk) == 0 {
res.End = ""
}
if fromStream != nil {
res.StartStream = fromStream.String()
}
@ -489,6 +484,12 @@ func (r *messagesReq) handleEmptyEventsSlice() (
func (r *messagesReq) handleNonEmptyEventsSlice(streamEvents []types.StreamEvent) (
events []*rstypes.HeaderedEvent, err error,
) {
// We've reached the beginning of the room, nothing more to do.
if r.backwardOrdering && streamEvents[len(streamEvents)-1].Type() == spec.MRoomCreate && streamEvents[len(streamEvents)-1].StateKeyEquals("") {
events = append(events, r.snapshot.StreamEventsToEvents(r.ctx, nil, streamEvents, r.rsAPI)...)
sort.Sort(eventsByDepth(events))
return events, nil
}
// Check if we have enough events.
isSetLargeEnough := len(streamEvents) >= r.filter.Limit
if !isSetLargeEnough {