Files
git.stella-ops.org/src/__Libraries/StellaOps.Provenance/ProvenanceExtensions.AttachDsseProvenance.cs

90 lines
2.6 KiB
C#

using System;
namespace StellaOps.Provenance;
public static partial class ProvenanceExtensions
{
/// <summary>
/// Attach DSSE provenance + trust info to an event document in-place.
/// Designed for generic DocumentObject-based event envelopes.
/// </summary>
public static DocumentObject AttachDsseProvenance(
this DocumentObject eventDoc,
DsseProvenance dsse,
TrustInfo trust)
{
if (eventDoc is null) throw new ArgumentNullException(nameof(eventDoc));
if (dsse is null) throw new ArgumentNullException(nameof(dsse));
if (trust is null) throw new ArgumentNullException(nameof(trust));
var dsseDoc = new DocumentObject
{
{ "envelopeDigest", dsse.EnvelopeDigest },
{ "payloadType", dsse.PayloadType },
{
"key", new DocumentObject
{
{ "keyId", dsse.Key.KeyId },
{ "issuer", StringOrNull(dsse.Key.Issuer) },
{ "algo", StringOrNull(dsse.Key.Algo) }
}
}
};
if (dsse.Rekor is not null)
{
var rekorDoc = new DocumentObject
{
{ "logIndex", dsse.Rekor.LogIndex },
{ "uuid", dsse.Rekor.Uuid }
};
if (dsse.Rekor.IntegratedTime is not null)
rekorDoc.Add("integratedTime", dsse.Rekor.IntegratedTime);
if (dsse.Rekor.MirrorSeq is not null)
rekorDoc.Add("mirrorSeq", dsse.Rekor.MirrorSeq);
dsseDoc.Add("rekor", rekorDoc);
}
if (dsse.Chain is not null && dsse.Chain.Count > 0)
{
var chainArray = new DocumentArray();
foreach (var link in dsse.Chain)
{
chainArray.Add(new DocumentObject
{
{ "type", link.Type },
{ "id", link.Id },
{ "digest", link.Digest }
});
}
dsseDoc.Add(ChainFieldName, chainArray);
}
var trustDoc = new DocumentObject
{
{ "verified", trust.Verified },
{ "verifier", StringOrNull(trust.Verifier) }
};
if (trust.Witnesses is not null)
trustDoc.Add("witnesses", trust.Witnesses);
if (trust.PolicyScore is not null)
trustDoc.Add("policyScore", trust.PolicyScore);
var provenanceDoc = new DocumentObject
{
{ DsseFieldName, dsseDoc }
};
eventDoc[ProvenanceFieldName] = provenanceDoc;
eventDoc[TrustFieldName] = trustDoc;
return eventDoc;
}
}