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Unset RoomServerEvent
, since we can't be sure that Set
actually updates the cached entry (#3002)
This should deflake UTs and be more correct in terms of getting `Events`. `Events` tries to fetch the event from the cache first and may get an unredacted event from it, while it should already be redacted.
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@ -10,6 +10,7 @@ import (
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type RoomServerEventsCache interface {
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GetRoomServerEvent(eventNID types.EventNID) (*gomatrixserverlib.Event, bool)
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StoreRoomServerEvent(eventNID types.EventNID, event *gomatrixserverlib.Event)
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InvalidateRoomServerEvent(eventNID types.EventNID)
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}
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func (c Caches) GetRoomServerEvent(eventNID types.EventNID) (*gomatrixserverlib.Event, bool) {
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@ -19,3 +20,7 @@ func (c Caches) GetRoomServerEvent(eventNID types.EventNID) (*gomatrixserverlib.
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func (c Caches) StoreRoomServerEvent(eventNID types.EventNID, event *gomatrixserverlib.Event) {
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c.RoomServerEvents.Set(int64(eventNID), event)
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}
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func (c Caches) InvalidateRoomServerEvent(eventNID types.EventNID) {
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c.RoomServerEvents.Unset(int64(eventNID))
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}
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@ -567,6 +567,7 @@ func (d *EventDatabase) events(
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if !redactionsArePermanent {
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d.applyRedactions(results)
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}
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return results, nil
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}
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eventJSONs, err := d.EventJSONTable.BulkSelectEventJSON(ctx, txn, eventNIDs)
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if err != nil {
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@ -578,8 +579,9 @@ func (d *EventDatabase) events(
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}
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for _, eventJSON := range eventJSONs {
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redacted := gjson.GetBytes(eventJSON.EventJSON, "unsigned.redacted_because").Exists()
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events[eventJSON.EventNID], err = gomatrixserverlib.NewEventFromTrustedJSONWithEventID(
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eventIDs[eventJSON.EventNID], eventJSON.EventJSON, false, roomInfo.RoomVersion,
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eventIDs[eventJSON.EventNID], eventJSON.EventJSON, redacted, roomInfo.RoomVersion,
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)
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if err != nil {
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return nil, err
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@ -1020,7 +1022,9 @@ func (d *EventDatabase) MaybeRedactEvent(
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return fmt.Errorf("d.RedactionsTable.MarkRedactionValidated: %w", err)
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}
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d.Cache.StoreRoomServerEvent(redactedEvent.EventNID, redactedEvent.Event)
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// We remove the entry from the cache, as if we just "StoreRoomServerEvent", we can't be
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// certain that the cached entry actually is updated, since ristretto is eventual-persistent.
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d.Cache.InvalidateRoomServerEvent(redactedEvent.EventNID)
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return nil
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})
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