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Fill the prev_batch property in responses from /sync (#589) 

* Fill the prev_batch property in responses from /sync

* Set prev_batch to 1 (first possible value in the sequence) if it's about to hit 0
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Brendan Abolivier 2018-11-08 15:11:11 +00:00 committed by GitHub
parent 83c3c7e1db
commit 8b0f60a470
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1 changed files with 15 additions and 0 deletions
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15
src/github.com/matrix-org/dendrite/syncapi/storage/syncserver.go
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@ -310,6 +310,11 @@ func (d *SyncServerDatabase) CompleteSync(
stateEvents = removeDuplicates(stateEvents, recentEvents)
jr := types.NewJoinResponse()
if prevBatch := recentStreamEvents[0].streamPosition - 1; prevBatch > 0 {
jr.Timeline.PrevBatch = types.StreamPosition(prevBatch).String()
} else {
jr.Timeline.PrevBatch = types.StreamPosition(1).String()
}
jr.Timeline.Events = gomatrixserverlib.ToClientEvents(recentEvents, gomatrixserverlib.FormatSync)
jr.Timeline.Limited = true
jr.State.Events = gomatrixserverlib.ToClientEvents(stateEvents, gomatrixserverlib.FormatSync)
@ -439,6 +444,11 @@ func (d *SyncServerDatabase) addRoomDeltaToResponse(
switch delta.membership {
case "join":
jr := types.NewJoinResponse()
if prevBatch := recentStreamEvents[0].streamPosition - 1; prevBatch > 0 {
jr.Timeline.PrevBatch = types.StreamPosition(prevBatch).String()
} else {
jr.Timeline.PrevBatch = types.StreamPosition(1).String()
}
jr.Timeline.Events = gomatrixserverlib.ToClientEvents(recentEvents, gomatrixserverlib.FormatSync)
jr.Timeline.Limited = false // TODO: if len(events) >= numRecents + 1 and then set limited:true
jr.State.Events = gomatrixserverlib.ToClientEvents(delta.stateEvents, gomatrixserverlib.FormatSync)
@ -449,6 +459,11 @@ func (d *SyncServerDatabase) addRoomDeltaToResponse(
// TODO: recentEvents may contain events that this user is not allowed to see because they are
// no longer in the room.
lr := types.NewLeaveResponse()
if prevBatch := recentStreamEvents[0].streamPosition - 1; prevBatch > 0 {
lr.Timeline.PrevBatch = types.StreamPosition(prevBatch).String()
} else {
lr.Timeline.PrevBatch = types.StreamPosition(1).String()
}
lr.Timeline.Events = gomatrixserverlib.ToClientEvents(recentEvents, gomatrixserverlib.FormatSync)
lr.Timeline.Limited = false // TODO: if len(events) >= numRecents + 1 and then set limited:true
lr.State.Events = gomatrixserverlib.ToClientEvents(delta.stateEvents, gomatrixserverlib.FormatSync)