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Panic at the Disco

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This commit is contained in:
Neil Alexander 2020-10-12 16:42:11 +01:00
parent ebce38cf3f
commit 0513c4330a
No known key found for this signature in database
GPG key ID: A02A2019A2BB0944
1 changed files with 11 additions and 9 deletions
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20
federationapi/routing/send.go
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@ -993,25 +993,27 @@ func (t *txnReq) lookupEvent(ctx context.Context, roomVersion gomatrixserverlib.
return &queryRes.Events[0], nil
}
}
var pdu json.RawMessage
var event gomatrixserverlib.Event
found := false
for _, serverName := range t.servers {
txn, err := t.federation.GetEvent(ctx, serverName, missingEventID)
if err != nil || len(txn.PDUs) == 0 {
util.GetLogger(ctx).WithError(err).WithField("event_id", missingEventID).Warn("Failed to get missing /event for event ID")
continue
}
pdu = txn.PDUs[0]
event, err = gomatrixserverlib.NewEventFromUntrustedJSON(txn.PDUs[0], roomVersion)
if err != nil {
util.GetLogger(ctx).WithError(err).WithField("event_id", missingEventID).Warnf("Transaction: Failed to parse event JSON of event")
continue
}
found = true
break
}
if len(pdu) == 0 {
if !found {
util.GetLogger(ctx).WithField("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))
}
event, err := gomatrixserverlib.NewEventFromUntrustedJSON(pdu, roomVersion)
if err != nil {
util.GetLogger(ctx).WithError(err).Warnf("Transaction: Failed to parse event JSON of event")
return nil, unmarshalError{err}
}
if err = gomatrixserverlib.VerifyAllEventSignatures(ctx, []gomatrixserverlib.Event{event}, t.keys); err != nil {
if err := gomatrixserverlib.VerifyAllEventSignatures(ctx, []gomatrixserverlib.Event{event}, t.keys); err != nil {
util.GetLogger(ctx).WithError(err).Warnf("Transaction: Couldn't validate signature of event %q", event.EventID())
return nil, verifySigError{event.EventID(), err}
}