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Check attestation has pre state before retrieving it (#6149)

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* Use state util to get block root

* Move prestate to below

Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>
This commit is contained in:
terence tsao 2020-06-05 16:23:35 -07:00 committed by GitHub
parent 6c0fbcc622
commit 6af7664a56
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 6 additions and 6 deletions
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12
beacon-chain/sync/validate_committee_index_beacon_attestation.go
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@ -69,12 +69,6 @@ func (s *Service) validateCommitteeIndexBeaconAttestation(ctx context.Context, p
traceutil.AnnotateError(span, err)
return pubsub.ValidationIgnore
}
preState, err := s.chain.AttestationPreState(ctx, att)
if err != nil {
log.WithError(err).Error("Failed to retrieve pre state")
traceutil.AnnotateError(span, err)
return pubsub.ValidationIgnore
}
if !strings.HasPrefix(originalTopic, fmt.Sprintf(format, digest, att.Data.CommitteeIndex)) {
return pubsub.ValidationIgnore
}
@ -101,6 +95,12 @@ func (s *Service) validateCommitteeIndexBeaconAttestation(ctx context.Context, p
return pubsub.ValidationIgnore
}
preState, err := s.chain.AttestationPreState(ctx, att)
if err != nil {
log.WithError(err).Error("Failed to retrieve pre state")
traceutil.AnnotateError(span, err)
return pubsub.ValidationIgnore
}
// Attestation's signature is a valid BLS signature and belongs to correct public key..
if !featureconfig.Get().DisableStrictAttestationPubsubVerification {
if err := blocks.VerifyAttestation(ctx, preState, att); err != nil {