diff options
Diffstat (limited to 'roomserver/internal')
| -rw-r--r-- | roomserver/internal/input/input_latest_events.go | 19 |
1 files changed, 6 insertions, 13 deletions
diff --git a/roomserver/internal/input/input_latest_events.go b/roomserver/internal/input/input_latest_events.go index 59b3fcb1..f772299a 100644 --- a/roomserver/internal/input/input_latest_events.go +++ b/roomserver/internal/input/input_latest_events.go @@ -234,19 +234,12 @@ func (u *latestEventsUpdater) latestState() error { } } - // Take the old set of extremities and the new set of extremities and - // mash them together into a list. This may or may not include the new event - // from the input path, depending on whether it became a forward extremity - // or not. We'll then run state resolution across all of them to determine - // the new current state of the room. Including the old extremities here - // ensures that new forward extremities with bad state snapshots (from - // possible malicious actors) can't completely corrupt the room state - // away from what it was before. - combinedExtremities := types.StateAtEventAndReferences(append(u.oldLatest, u.latest...)) - combinedExtremities = combinedExtremities[:util.SortAndUnique(combinedExtremities)] - latestStateAtEvents := make([]types.StateAtEvent, len(combinedExtremities)) - for i := range combinedExtremities { - latestStateAtEvents[i] = combinedExtremities[i].StateAtEvent + // Get a list of the current latest events. This may or may not + // include the new event from the input path, depending on whether + // it is a forward extremity or not. + latestStateAtEvents := make([]types.StateAtEvent, len(u.latest)) + for i := range u.latest { + latestStateAtEvents[i] = u.latest[i].StateAtEvent } // Takes the NIDs of the latest events and creates a state snapshot |