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Add support for printing SCT extension data #85

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Add support for printing SCT extension data #85

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19 changes: 17 additions & 2 deletions certinfo.go
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Original file line number Diff line number Diff line change
Expand Up @@ -610,6 +610,20 @@ func printSCTSignature(sig ct.DigitallySigned, buf *bytes.Buffer) {
fmt.Fprint(buf, "\n")
}

func printSCTExtensions(ext ct.CTExtensions, buf *bytes.Buffer) {
fmt.Fprintf(buf, "%20sExtensions:", "")
for i, val := range ext {
if (i % 18) == 0 {
fmt.Fprintf(buf, "\n%22s", "")
}
fmt.Fprintf(buf, "%02x", val)
if i != len(ext)-1 {
fmt.Fprint(buf, ":")
}
}
fmt.Fprint(buf, "\n")
}

func printExtensionHeader(name string, ext pkix.Extension, buf *bytes.Buffer) {
fmt.Fprintf(buf, "%12s%s:", "", name)
if ext.Critical {
Expand Down Expand Up @@ -1132,8 +1146,9 @@ func CertificateText(cert *x509.Certificate) (string, error) {
fmt.Fprintf(buf, "%20sVersion: %s (%#x)\n", "", sct.SCTVersion, mustInt64(uint64(sct.SCTVersion)))
fmt.Fprintf(buf, "%20sLogID: %s\n", "", toBase64(sct.LogID.KeyID[:]))
fmt.Fprintf(buf, "%20sTimestamp: %s\n", "", time.Unix(sec, nsec*1e6).UTC().Format(sctTimeFormat))
// There are no available extensions
// fmt.Fprintf(buf, "%20sExtensions: %v\n", "", sct.Extensions)
if len(sct.Extensions) > 0 {
printSCTExtensions(sct.Extensions, buf)
}
printSCTSignature(sct.Signature, buf)
}
case ext.Id.Equal(oidYubicoFirmwareVersion):
Expand Down