hoernschen/dendrite
1
0
Fork 0
mirror of https://github.com/hoernschen/dendrite.git synced 2025-08-02 06:12:45 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Implement backfill over federation (#938)

Browse source 
* Implement history visibility checks for /backfill

Required for p2p to show history correctly.

* Add sytest

* Logging

* Fix two backfill bugs which prevented backfill from working correctly

- When receiving backfill requests, do not send the event that was in the original request.
- When storing backfill results, correctly update the backwards extremity for the room.

* hack: make backfill work multiple times

* add sqlite impl and remove logging

* Linting
This commit is contained in:
Kegsay 2020-03-24 12:20:10 +00:00 • committed by GitHub
parent 5a1a1ded1b
commit 6bac7e5efd
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
11 changed files with 322 additions and 202 deletions
Download patch file Download diff file Expand all files Collapse all files

17
syncapi/storage/sqlite3/syncserver.go
View file

@ -137,18 +137,13 @@ func (d *SyncServerDatasource) Events(ctx context.Context, eventIDs []string) ([
return d.StreamEventsToEvents(nil, streamEvents), nil
}
// handleBackwardExtremities adds this event as a backwards extremity if and only if we do not have all of
// the events listed in the event's 'prev_events'. This function also updates the backwards extremities table
// to account for the fact that the given event is no longer a backwards extremity, but may be marked as such.
func (d *SyncServerDatasource) handleBackwardExtremities(ctx context.Context, txn *sql.Tx, ev *gomatrixserverlib.HeaderedEvent) error {
// If the event is already known as a backward extremity, don't consider
// it as such anymore now that we have it.
isBackwardExtremity, err := d.backwardExtremities.isBackwardExtremity(ctx, txn, ev.RoomID(), ev.EventID())
if err != nil {
if err := d.backwardExtremities.deleteBackwardExtremity(ctx, txn, ev.RoomID(), ev.EventID()); err != nil {
return err
}
if isBackwardExtremity {
if err = d.backwardExtremities.deleteBackwardExtremity(ctx, txn, ev.RoomID(), ev.EventID()); err != nil {
return err
}
}
// Check if we have all of the event's previous events. If an event is
// missing, add it to the room's backward extremities.
@ -167,7 +162,7 @@ func (d *SyncServerDatasource) handleBackwardExtremities(ctx context.Context, tx
// If the event is missing, consider it a backward extremity.
if !found {
if err = d.backwardExtremities.insertsBackwardExtremity(ctx, txn, ev.RoomID(), ev.EventID()); err != nil {
if err = d.backwardExtremities.insertsBackwardExtremity(ctx, txn, ev.RoomID(), ev.EventID(), eID); err != nil {
return err
}
}
@ -348,7 +343,7 @@ func (d *SyncServerDatasource) SyncPosition(ctx context.Context) (tok types.Pagi
func (d *SyncServerDatasource) BackwardExtremitiesForRoom(
ctx context.Context, roomID string,
) (backwardExtremities []string, err error) {
return d.backwardExtremities.selectBackwardExtremitiesForRoom(ctx, nil, roomID)
return d.backwardExtremities.selectBackwardExtremitiesForRoom(ctx, roomID)
}
// MaxTopologicalPosition returns the highest topological position for a given