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Use PDU interface (#3070)

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We only use it in a few places currently, enough to get things to
compile and run. We should be using it in much more places.

Similarly, in some places we cast []PDU back to []*Event, we need to not
do that. Likewise, in some places we cast PDU to *Event, we need to not
do that. For now though, hopefully this is a start.
This commit is contained in:
kegsay 2023-04-27 16:35:19 +01:00 • committed by GitHub
parent c6457cd4e5
commit 6171310307
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GPG key ID: 4AEE18F83AFDEB23
23 changed files with 96 additions and 77 deletions
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12
roomserver/internal/input/input_events.go
View file

@ -545,7 +545,7 @@ func (r *Inputer) processStateBefore(
// will include the history visibility here even though we don't
// actually need it for auth, because we want to send it in the
// output events.
tuplesNeeded := gomatrixserverlib.StateNeededForAuth([]*gomatrixserverlib.Event{event}).Tuples()
tuplesNeeded := gomatrixserverlib.StateNeededForAuth([]gomatrixserverlib.PDU{event}).Tuples()
tuplesNeeded = append(tuplesNeeded, gomatrixserverlib.StateKeyTuple{
EventType: spec.MRoomHistoryVisibility,
StateKey: "",
@ -576,7 +576,9 @@ func (r *Inputer) processStateBefore(
// At this point, stateBeforeEvent should be populated either by
// the supplied state in the input request, or from the prev events.
// Check whether the event is allowed or not.
stateBeforeAuth := gomatrixserverlib.NewAuthEvents(stateBeforeEvent)
stateBeforeAuth := gomatrixserverlib.NewAuthEvents(
gomatrixserverlib.ToPDUs(stateBeforeEvent),
)
if rejectionErr = gomatrixserverlib.Allowed(event, &stateBeforeAuth); rejectionErr != nil {
rejectionErr = fmt.Errorf("Allowed() failed for stateBeforeEvent: %w", rejectionErr)
return
@ -675,7 +677,7 @@ func (r *Inputer) fetchAuthEvents(
isRejected := false
nextAuthEvent:
for _, authEvent := range gomatrixserverlib.ReverseTopologicalOrdering(
res.AuthEvents.UntrustedEvents(event.Version()),
gomatrixserverlib.ToPDUs(res.AuthEvents.UntrustedEvents(event.Version())),
gomatrixserverlib.TopologicalOrderByAuthEvents,
) {
// If we already know about this event from the database then we don't
@ -688,7 +690,7 @@ nextAuthEvent:
// Check the signatures of the event. If this fails then we'll simply
// skip it, because gomatrixserverlib.Allowed() will notice a problem
// if a critical event is missing anyway.
if err := authEvent.VerifyEventSignatures(ctx, r.FSAPI.KeyRing()); err != nil {
if err := gomatrixserverlib.VerifyEventSignatures(ctx, authEvent, r.FSAPI.KeyRing()); err != nil {
continue nextAuthEvent
}
@ -743,7 +745,7 @@ nextAuthEvent:
// Now we know about this event, it was stored and the signatures were OK.
known[authEvent.EventID()] = &types.Event{
EventNID: eventNID,
Event: authEvent,
Event: authEvent.(*gomatrixserverlib.Event),
}
}

25
roomserver/internal/input/input_missing.go
View file

@ -26,7 +26,7 @@ type parsedRespState struct {
StateEvents []*gomatrixserverlib.Event
}
func (p *parsedRespState) Events() []*gomatrixserverlib.Event {
func (p *parsedRespState) Events() []gomatrixserverlib.PDU {
eventsByID := make(map[string]*gomatrixserverlib.Event, len(p.AuthEvents)+len(p.StateEvents))
for i, event := range p.AuthEvents {
eventsByID[event.EventID()] = p.AuthEvents[i]
@ -38,7 +38,8 @@ func (p *parsedRespState) Events() []*gomatrixserverlib.Event {
for _, event := range eventsByID {
allEvents = append(allEvents, event)
}
return gomatrixserverlib.ReverseTopologicalOrdering(allEvents, gomatrixserverlib.TopologicalOrderByAuthEvents)
return gomatrixserverlib.ReverseTopologicalOrdering(
gomatrixserverlib.ToPDUs(allEvents), gomatrixserverlib.TopologicalOrderByAuthEvents)
}
type missingStateReq struct {
@ -155,7 +156,7 @@ func (t *missingStateReq) processEventWithMissingState(
}
outlierRoomEvents = append(outlierRoomEvents, api.InputRoomEvent{
Kind: api.KindOutlier,
Event: &types.HeaderedEvent{Event: outlier},
Event: &types.HeaderedEvent{Event: outlier.(*gomatrixserverlib.Event)},
Origin: t.origin,
})
}
@ -468,7 +469,9 @@ func (t *missingStateReq) resolveStatesAndCheck(ctx context.Context, roomVersion
authEventList = append(authEventList, state.AuthEvents...)
stateEventList = append(stateEventList, state.StateEvents...)
}
resolvedStateEvents, err := gomatrixserverlib.ResolveConflicts(roomVersion, stateEventList, authEventList)
resolvedStateEvents, err := gomatrixserverlib.ResolveConflicts(
roomVersion, gomatrixserverlib.ToPDUs(stateEventList), gomatrixserverlib.ToPDUs(authEventList),
)
if err != nil {
return nil, err
}
@ -482,7 +485,7 @@ retryAllowedState:
case verifySigError:
return &parsedRespState{
AuthEvents: authEventList,
StateEvents: resolvedStateEvents,
StateEvents: gomatrixserverlib.TempCastToEvents(resolvedStateEvents),
}, nil
case nil:
// do nothing
@ -498,7 +501,7 @@ retryAllowedState:
}
return &parsedRespState{
AuthEvents: authEventList,
StateEvents: resolvedStateEvents,
StateEvents: gomatrixserverlib.TempCastToEvents(resolvedStateEvents),
}, nil
}
@ -559,7 +562,7 @@ func (t *missingStateReq) getMissingEvents(ctx context.Context, e *gomatrixserve
// will be added and duplicates will be removed.
missingEvents := make([]*gomatrixserverlib.Event, 0, len(missingResp.Events))
for _, ev := range missingResp.Events.UntrustedEvents(roomVersion) {
if err = ev.VerifyEventSignatures(ctx, t.keys); err != nil {
if err = gomatrixserverlib.VerifyEventSignatures(ctx, ev, t.keys); err != nil {
continue
}
missingEvents = append(missingEvents, t.cacheAndReturn(ev))
@ -567,7 +570,9 @@ func (t *missingStateReq) getMissingEvents(ctx context.Context, e *gomatrixserve
logger.Debugf("get_missing_events returned %d events (%d passed signature checks)", len(missingResp.Events), len(missingEvents))
// topologically sort and sanity check that we are making forward progress
newEvents = gomatrixserverlib.ReverseTopologicalOrdering(missingEvents, gomatrixserverlib.TopologicalOrderByPrevEvents)
newEventsPDUs := gomatrixserverlib.ReverseTopologicalOrdering(
gomatrixserverlib.ToPDUs(missingEvents), gomatrixserverlib.TopologicalOrderByPrevEvents)
newEvents = gomatrixserverlib.TempCastToEvents(newEventsPDUs)
shouldHaveSomeEventIDs := e.PrevEventIDs()
hasPrevEvent := false
Event:
@ -882,14 +887,14 @@ func (t *missingStateReq) lookupEvent(ctx context.Context, roomVersion gomatrixs
t.log.WithField("missing_event_id", missingEventID).Warnf("Failed to get missing /event for event ID from %d server(s)", len(t.servers))
return nil, fmt.Errorf("wasn't able to find event via %d server(s)", len(t.servers))
}
if err := event.VerifyEventSignatures(ctx, t.keys); err != nil {
if err := gomatrixserverlib.VerifyEventSignatures(ctx, event, t.keys); err != nil {
t.log.WithError(err).Warnf("Couldn't validate signature of event %q from /event", event.EventID())
return nil, verifySigError{event.EventID(), err}
}
return t.cacheAndReturn(event), nil
}
func checkAllowedByState(e *gomatrixserverlib.Event, stateEvents []*gomatrixserverlib.Event) error {
func checkAllowedByState(e *gomatrixserverlib.Event, stateEvents []gomatrixserverlib.PDU) error {
authUsingState := gomatrixserverlib.NewAuthEvents(nil)
for i := range stateEvents {
err := authUsingState.AddEvent(stateEvents[i])