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fb2e7d1b05
commit
98d3f88bfb
@ -47,7 +47,7 @@ type DatabaseTransaction interface {
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MembershipCount(ctx context.Context, roomID, membership string, pos types.StreamPosition) (int, error)
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GetRoomHeroes(ctx context.Context, roomID, userID string, memberships []string) ([]string, error)
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RecentEvents(ctx context.Context, roomID string, r types.Range, eventFilter *gomatrixserverlib.RoomEventFilter, chronologicalOrder bool, onlySyncEvents bool) ([]types.StreamEvent, bool, error)
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GetBackwardTopologyPos(ctx context.Context, events []types.StreamEvent) (types.TopologyToken, error)
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GetBackwardTopologyPos(ctx context.Context, events []*gomatrixserverlib.HeaderedEvent) (types.TopologyToken, error)
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PositionInTopology(ctx context.Context, eventID string) (pos types.StreamPosition, spos types.StreamPosition, err error)
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InviteEventsInRange(ctx context.Context, targetUserID string, r types.Range) (map[string]*gomatrixserverlib.HeaderedEvent, map[string]*gomatrixserverlib.HeaderedEvent, types.StreamPosition, error)
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PeeksInRange(ctx context.Context, userID, deviceID string, r types.Range) (peeks []types.Peek, err error)
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@ -259,7 +259,7 @@ func (d *DatabaseTransaction) StreamToTopologicalPosition(
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// oldest event in the room's topology.
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func (d *DatabaseTransaction) GetBackwardTopologyPos(
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ctx context.Context,
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events []types.StreamEvent,
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events []*gomatrixserverlib.HeaderedEvent,
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) (types.TopologyToken, error) {
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zeroToken := types.TopologyToken{}
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if len(events) == 0 {
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@ -255,10 +255,6 @@ func (p *PDUStreamProvider) addRoomDeltaToResponse(
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snapshot.StreamEventsToEvents(device, recentStreamEvents),
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gomatrixserverlib.TopologicalOrderByPrevEvents,
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)
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prevBatch, err := snapshot.GetBackwardTopologyPos(ctx, recentStreamEvents)
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if err != nil {
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return r.From, fmt.Errorf("p.DB.GetBackwardTopologyPos: %w", err)
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}
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// If we didn't return any events at all then don't bother doing anything else.
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if len(recentEvents) == 0 && len(delta.StateEvents) == 0 {
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@ -312,6 +308,11 @@ func (p *PDUStreamProvider) addRoomDeltaToResponse(
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limited = true
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}
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prevBatch, err := snapshot.GetBackwardTopologyPos(ctx, events)
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if err != nil {
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return r.From, fmt.Errorf("p.DB.GetBackwardTopologyPos: %w", err)
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}
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// Now that we've filtered the timeline, work out which state events are still
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// left. Anything that appears in the filtered timeline will be removed from the
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// "state" section and kept in "timeline".
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@ -489,28 +490,6 @@ func (p *PDUStreamProvider) getJoinResponseForCompleteSync(
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return
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}
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// Retrieve the backward topology position, i.e. the position of the
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// oldest event in the room's topology.
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var prevBatch *types.TopologyToken
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if len(recentStreamEvents) > 0 {
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var backwardTopologyPos, backwardStreamPos types.StreamPosition
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event := recentStreamEvents[0]
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// If this is the beginning of the room, we can't go back further. We're going to return
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// the TopologyToken from the last event instead. (Synapse returns the /sync next_Batch)
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if event.Type() == gomatrixserverlib.MRoomCreate && event.StateKeyEquals("") {
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event = recentStreamEvents[len(recentStreamEvents)-1]
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}
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backwardTopologyPos, backwardStreamPos, err = snapshot.PositionInTopology(ctx, event.EventID())
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if err != nil {
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return
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}
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prevBatch = &types.TopologyToken{
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Depth: backwardTopologyPos,
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PDUPosition: backwardStreamPos,
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}
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prevBatch.Decrement()
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}
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p.addRoomSummary(ctx, snapshot, jr, roomID, device.UserID, r.From)
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// We don't include a device here as we don't need to send down
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@ -545,6 +524,28 @@ func (p *PDUStreamProvider) getJoinResponseForCompleteSync(
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}
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}
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// Retrieve the backward topology position, i.e. the position of the
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// oldest event in the room's topology.
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var prevBatch *types.TopologyToken
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if len(events) > 0 {
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var backwardTopologyPos, backwardStreamPos types.StreamPosition
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event := events[0]
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// If this is the beginning of the room, we can't go back further. We're going to return
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// the TopologyToken from the last event instead. (Synapse returns the /sync next_Batch)
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if event.Type() == gomatrixserverlib.MRoomCreate && event.StateKeyEquals("") {
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event = events[len(events)-1]
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}
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backwardTopologyPos, backwardStreamPos, err = snapshot.PositionInTopology(ctx, event.EventID())
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if err != nil {
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return
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}
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prevBatch = &types.TopologyToken{
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Depth: backwardTopologyPos,
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PDUPosition: backwardStreamPos,
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}
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prevBatch.Decrement()
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}
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jr.Timeline.PrevBatch = prevBatch
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jr.Timeline.Events = gomatrixserverlib.HeaderedToClientEvents(events, gomatrixserverlib.FormatSync)
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// If we are limited by the filter AND the history visibility filter
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