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Check for empty cert chain #163

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Check for empty cert chain #163

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5 changes: 5 additions & 0 deletions go/util/tls/verify.go
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@ type InvalidReason int

const (
EmptyPeerCertificate InvalidReason = iota
NoPeerCertificates
TooManyPeerCertificates
InvalidCN
InvalidSN
Expand Down Expand Up @@ -54,6 +55,10 @@ func (e CertificateInvalidError) Error() string {
}

func ValidatePeerCertificates(ctx context.Context, cquery ctypes.QueryClient, certs []*x509.Certificate, usage []x509.ExtKeyUsage) (sdk.Address, *x509.Certificate, error) {
if len(certs) == 0 {
return nil, nil, CertificateInvalidError{nil, NoPeerCertificates}
}

if len(certs) != 1 {
return nil, nil, CertificateInvalidError{nil, TooManyPeerCertificates}
}
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