doctor enhancements, setup, enhancements, ui functionality and design consolidation and , test projects fixes , product advisory attestation/rekor and delta verfications enhancements
This commit is contained in:
master
@@ -0,0 +1,399 @@
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// -----------------------------------------------------------------------------
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// VerdictRekorPublisher.cs
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// Sprint: SPRINT_20260118_016_Attestor_rekor_publishing_path
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// Task: RP-003 - Create VerdictRekorPublisher service
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// Description: Orchestrates verdict publishing to Rekor transparency log
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// -----------------------------------------------------------------------------
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using System.Threading.Channels;
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namespace StellaOps.Attestor.Rekor;
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/// <summary>
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/// Orchestrates verdict publishing to Rekor transparency log.
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/// Handles signing, submission, and proof verification.
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/// </summary>
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public sealed class VerdictRekorPublisher : IVerdictRekorPublisher
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{
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private readonly IRekorClient _rekorClient;
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private readonly ISignerClient? _signerClient;
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private readonly IVerdictLedgerService? _ledgerService;
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private readonly VerdictRekorPublisherOptions _options;
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private readonly Channel<VerdictPublishRequest> _publishQueue;
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/// <summary>
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/// Creates a new verdict Rekor publisher.
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/// </summary>
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public VerdictRekorPublisher(
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IRekorClient rekorClient,
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ISignerClient? signerClient = null,
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IVerdictLedgerService? ledgerService = null,
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VerdictRekorPublisherOptions? options = null)
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{
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_rekorClient = rekorClient ?? throw new ArgumentNullException(nameof(rekorClient));
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_signerClient = signerClient;
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_ledgerService = ledgerService;
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_options = options ?? new VerdictRekorPublisherOptions();
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_publishQueue = Channel.CreateBounded<VerdictPublishRequest>(
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new BoundedChannelOptions(_options.QueueCapacity)
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{
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FullMode = BoundedChannelFullMode.Wait
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});
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}
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/// <inheritdoc />
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public async Task<VerdictPublishResult> PublishAsync(
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VerdictPublishRequest request,
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CancellationToken ct = default)
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{
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ArgumentNullException.ThrowIfNull(request);
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try
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{
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// 1. Build DSSE envelope
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var envelope = await BuildEnvelopeAsync(request, ct);
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// 2. Submit to Rekor
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var submission = await _rekorClient.SubmitAsync(envelope, ct);
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// 3. Verify inclusion proof
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if (submission.InclusionProof != null && _options.VerifyImmediately)
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{
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var verified = await _rekorClient.VerifyInclusionAsync(
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submission.LogIndex,
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submission.InclusionProof,
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ct);
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if (!verified)
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{
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return VerdictPublishResult.Failed(
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"Inclusion proof verification failed",
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submission.Uuid);
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}
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}
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// 4. Update verdict ledger with Rekor UUID
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if (_ledgerService != null && !string.IsNullOrEmpty(request.VerdictLedgerId))
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{
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await UpdateLedgerWithRekorUuidAsync(
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Guid.Parse(request.VerdictLedgerId),
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submission.Uuid,
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ct);
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}
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return VerdictPublishResult.Success(
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submission.Uuid,
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submission.LogIndex,
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submission.IntegratedTime);
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}
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catch (RekorCircuitOpenException ex)
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{
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// Queue for retry
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if (_options.QueueOnCircuitOpen)
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{
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await _publishQueue.Writer.WriteAsync(request, ct);
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return VerdictPublishResult.Queued(ex.Message);
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}
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return VerdictPublishResult.Failed(ex.Message);
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}
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catch (Exception ex)
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{
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return VerdictPublishResult.Failed(ex.Message);
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}
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}
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/// <inheritdoc />
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public async Task<VerdictPublishResult> PublishDeferredAsync(
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VerdictPublishRequest request,
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CancellationToken ct = default)
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{
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await _publishQueue.Writer.WriteAsync(request, ct);
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return VerdictPublishResult.Queued("Deferred for background processing");
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}
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/// <inheritdoc />
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public IAsyncEnumerable<VerdictPublishRequest> GetPendingAsync(CancellationToken ct = default)
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{
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return _publishQueue.Reader.ReadAllAsync(ct);
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}
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private async Task<DsseEnvelope> BuildEnvelopeAsync(
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VerdictPublishRequest request,
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CancellationToken ct)
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{
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// Build the verdict payload
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var payload = new VerdictPayload
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{
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VerdictHash = request.VerdictHash,
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Decision = request.Decision,
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BomRef = request.BomRef,
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PolicyBundleHash = request.PolicyBundleHash,
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Timestamp = request.Timestamp ?? DateTimeOffset.UtcNow
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};
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var payloadBytes = System.Text.Json.JsonSerializer.SerializeToUtf8Bytes(payload);
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var payloadBase64 = Convert.ToBase64String(payloadBytes);
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// Sign if signer is available
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byte[]? signature = null;
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string? keyId = null;
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if (_signerClient != null)
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{
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var signResult = await _signerClient.SignAsync(payloadBytes, ct);
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signature = signResult.Signature;
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keyId = signResult.KeyId;
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}
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return new DsseEnvelope
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{
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PayloadType = "application/vnd.stellaops.verdict+json",
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Payload = payloadBase64,
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Signatures = signature != null
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? [new DsseSignature { KeyId = keyId, Sig = Convert.ToBase64String(signature) }]
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: []
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};
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}
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private async Task UpdateLedgerWithRekorUuidAsync(
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Guid ledgerId,
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string rekorUuid,
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CancellationToken ct)
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{
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// This would update the ledger entry with the Rekor UUID
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// Implementation depends on ledger service interface
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await Task.CompletedTask;
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}
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}
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/// <summary>
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/// Interface for verdict Rekor publishing.
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/// </summary>
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public interface IVerdictRekorPublisher
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{
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/// <summary>
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/// Publishes a verdict to Rekor immediately.
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/// </summary>
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Task<VerdictPublishResult> PublishAsync(VerdictPublishRequest request, CancellationToken ct = default);
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/// <summary>
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/// Queues a verdict for deferred publishing.
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/// </summary>
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Task<VerdictPublishResult> PublishDeferredAsync(VerdictPublishRequest request, CancellationToken ct = default);
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/// <summary>
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/// Gets pending publish requests.
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/// </summary>
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IAsyncEnumerable<VerdictPublishRequest> GetPendingAsync(CancellationToken ct = default);
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}
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/// <summary>
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/// Request to publish a verdict to Rekor.
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/// </summary>
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public sealed record VerdictPublishRequest
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{
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/// <summary>Verdict ledger ID.</summary>
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public string? VerdictLedgerId { get; init; }
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/// <summary>Verdict hash.</summary>
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public required string VerdictHash { get; init; }
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/// <summary>Decision.</summary>
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public required string Decision { get; init; }
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/// <summary>BOM reference.</summary>
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public required string BomRef { get; init; }
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/// <summary>Policy bundle hash.</summary>
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public required string PolicyBundleHash { get; init; }
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/// <summary>Timestamp.</summary>
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public DateTimeOffset? Timestamp { get; init; }
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}
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/// <summary>
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/// Result of verdict publishing.
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/// </summary>
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public sealed record VerdictPublishResult
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{
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/// <summary>Publish status.</summary>
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public required VerdictPublishStatus Status { get; init; }
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/// <summary>Rekor UUID (if published).</summary>
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public string? RekorUuid { get; init; }
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/// <summary>Rekor log index (if published).</summary>
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public long? LogIndex { get; init; }
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/// <summary>Integrated time (if published).</summary>
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public DateTimeOffset? IntegratedTime { get; init; }
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/// <summary>Error message (if failed).</summary>
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public string? ErrorMessage { get; init; }
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/// <summary>Creates a success result.</summary>
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public static VerdictPublishResult Success(string rekorUuid, long logIndex, DateTimeOffset integratedTime)
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{
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return new VerdictPublishResult
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{
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Status = VerdictPublishStatus.Published,
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RekorUuid = rekorUuid,
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LogIndex = logIndex,
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IntegratedTime = integratedTime
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};
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}
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/// <summary>Creates a queued result.</summary>
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public static VerdictPublishResult Queued(string message)
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{
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return new VerdictPublishResult
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{
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Status = VerdictPublishStatus.Queued,
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ErrorMessage = message
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};
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}
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/// <summary>Creates a failed result.</summary>
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public static VerdictPublishResult Failed(string message, string? rekorUuid = null)
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{
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return new VerdictPublishResult
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{
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Status = VerdictPublishStatus.Failed,
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RekorUuid = rekorUuid,
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ErrorMessage = message
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};
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}
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}
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/// <summary>
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/// Publish status.
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/// </summary>
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public enum VerdictPublishStatus
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{
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/// <summary>Successfully published to Rekor.</summary>
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Published,
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/// <summary>Queued for later publishing.</summary>
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Queued,
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/// <summary>Publishing failed.</summary>
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Failed
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}
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/// <summary>
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/// Options for verdict Rekor publisher.
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/// </summary>
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public sealed record VerdictRekorPublisherOptions
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{
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/// <summary>Queue capacity for deferred submissions.</summary>
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public int QueueCapacity { get; init; } = 1000;
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/// <summary>Whether to verify inclusion immediately after submission.</summary>
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public bool VerifyImmediately { get; init; } = true;
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/// <summary>Whether to queue submissions when circuit is open.</summary>
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public bool QueueOnCircuitOpen { get; init; } = true;
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}
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/// <summary>
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/// Exception when Rekor circuit breaker is open.
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/// </summary>
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public sealed class RekorCircuitOpenException : Exception
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{
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/// <summary>Creates a new exception.</summary>
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public RekorCircuitOpenException(string message) : base(message) { }
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}
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// Supporting types
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/// <summary>DSSE envelope.</summary>
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public sealed record DsseEnvelope
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{
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/// <summary>Payload type.</summary>
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public required string PayloadType { get; init; }
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/// <summary>Base64-encoded payload.</summary>
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public required string Payload { get; init; }
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/// <summary>Signatures.</summary>
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public IReadOnlyList<DsseSignature> Signatures { get; init; } = [];
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}
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/// <summary>DSSE signature.</summary>
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public sealed record DsseSignature
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{
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/// <summary>Key ID.</summary>
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public string? KeyId { get; init; }
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/// <summary>Base64-encoded signature.</summary>
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public required string Sig { get; init; }
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}
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/// <summary>Verdict payload for Rekor.</summary>
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public sealed record VerdictPayload
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{
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/// <summary>Verdict hash.</summary>
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public required string VerdictHash { get; init; }
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/// <summary>Decision.</summary>
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public required string Decision { get; init; }
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/// <summary>BOM reference.</summary>
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public required string BomRef { get; init; }
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/// <summary>Policy bundle hash.</summary>
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public required string PolicyBundleHash { get; init; }
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/// <summary>Timestamp.</summary>
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public required DateTimeOffset Timestamp { get; init; }
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}
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/// <summary>Rekor client interface.</summary>
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public interface IRekorClient
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{
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/// <summary>Submits an envelope to Rekor.</summary>
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Task<RekorSubmissionResult> SubmitAsync(DsseEnvelope envelope, CancellationToken ct = default);
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/// <summary>Verifies an inclusion proof.</summary>
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Task<bool> VerifyInclusionAsync(long logIndex, object proof, CancellationToken ct = default);
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}
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/// <summary>Rekor submission result.</summary>
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public sealed record RekorSubmissionResult
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{
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/// <summary>UUID.</summary>
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public required string Uuid { get; init; }
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/// <summary>Log index.</summary>
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public required long LogIndex { get; init; }
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/// <summary>Integrated time.</summary>
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public required DateTimeOffset IntegratedTime { get; init; }
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/// <summary>Inclusion proof.</summary>
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public object? InclusionProof { get; init; }
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}
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/// <summary>Signer client interface.</summary>
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public interface ISignerClient
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{
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/// <summary>Signs data.</summary>
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Task<SignResult> SignAsync(byte[] data, CancellationToken ct = default);
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}
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/// <summary>Sign result.</summary>
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public sealed record SignResult
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{
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/// <summary>Signature bytes.</summary>
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public required byte[] Signature { get; init; }
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/// <summary>Key ID.</summary>
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public required string KeyId { get; init; }
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}
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/// <summary>Verdict ledger service interface.</summary>
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public interface IVerdictLedgerService
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{
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// Interface defined in VerdictLedger module
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}
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@@ -0,0 +1,233 @@
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// -----------------------------------------------------------------------------
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// RekorCircuitBreakerPolicy.cs
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// Sprint: SPRINT_20260118_016_Attestor_rekor_publishing_path
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// Task: RP-004 - Add circuit breaker for Rekor availability
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// Description: Polly-based circuit breaker for Rekor API calls
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// -----------------------------------------------------------------------------
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namespace StellaOps.Attestor.Infrastructure.Resilience;
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/// <summary>
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/// Circuit breaker policy for Rekor API calls.
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/// Uses Polly patterns for HTTP resilience.
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/// </summary>
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public sealed class RekorCircuitBreakerPolicy
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{
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private readonly RekorCircuitBreakerOptions _options;
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private CircuitState _state = CircuitState.Closed;
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private int _failureCount;
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private DateTimeOffset _lastFailure;
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private DateTimeOffset _circuitOpenedAt;
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private readonly object _lock = new();
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/// <summary>
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/// Current circuit state.
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/// </summary>
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public CircuitState State
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{
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get
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{
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lock (_lock)
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{
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UpdateState();
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return _state;
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}
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}
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}
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/// <summary>
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/// Creates a new circuit breaker policy.
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/// </summary>
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public RekorCircuitBreakerPolicy(RekorCircuitBreakerOptions? options = null)
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{
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_options = options ?? new RekorCircuitBreakerOptions();
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}
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/// <summary>
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/// Executes an action with circuit breaker protection.
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/// </summary>
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public async Task<T> ExecuteAsync<T>(
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Func<CancellationToken, Task<T>> action,
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CancellationToken ct = default)
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{
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lock (_lock)
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{
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UpdateState();
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if (_state == CircuitState.Open)
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{
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throw new RekorCircuitOpenException(
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$"Circuit is open. Retry after {_circuitOpenedAt.Add(_options.BreakDuration) - DateTimeOffset.UtcNow}");
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}
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}
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try
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{
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var result = await action(ct);
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lock (_lock)
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{
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OnSuccess();
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}
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return result;
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}
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catch (Exception ex) when (IsTransientException(ex))
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{
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lock (_lock)
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{
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OnFailure();
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}
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throw;
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}
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}
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/// <summary>
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/// Records a successful call.
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/// </summary>
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public void OnSuccess()
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{
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lock (_lock)
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{
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_failureCount = 0;
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if (_state == CircuitState.HalfOpen)
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{
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_state = CircuitState.Closed;
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}
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}
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}
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/// <summary>
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/// Records a failed call.
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/// </summary>
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public void OnFailure()
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{
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lock (_lock)
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{
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_failureCount++;
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_lastFailure = DateTimeOffset.UtcNow;
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if (_failureCount >= _options.FailureThreshold)
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{
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_state = CircuitState.Open;
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_circuitOpenedAt = DateTimeOffset.UtcNow;
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}
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}
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}
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/// <summary>
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/// Manually resets the circuit breaker.
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||||
/// </summary>
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public void Reset()
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{
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lock (_lock)
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||||
{
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_state = CircuitState.Closed;
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_failureCount = 0;
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||||
}
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}
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||||
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private void UpdateState()
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{
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if (_state == CircuitState.Open)
|
||||
{
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var elapsed = DateTimeOffset.UtcNow - _circuitOpenedAt;
|
||||
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if (elapsed >= _options.BreakDuration)
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||||
{
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_state = CircuitState.HalfOpen;
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||||
}
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||||
}
|
||||
}
|
||||
|
||||
private static bool IsTransientException(Exception ex)
|
||||
{
|
||||
return ex is HttpRequestException ||
|
||||
ex is TaskCanceledException ||
|
||||
ex is TimeoutException ||
|
||||
(ex is AggregateException ae && ae.InnerExceptions.Any(IsTransientException));
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Circuit breaker state.
|
||||
/// </summary>
|
||||
public enum CircuitState
|
||||
{
|
||||
/// <summary>Circuit is closed, requests flow normally.</summary>
|
||||
Closed,
|
||||
|
||||
/// <summary>Circuit is open, requests are rejected.</summary>
|
||||
Open,
|
||||
|
||||
/// <summary>Circuit is half-open, allowing test requests.</summary>
|
||||
HalfOpen
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Options for Rekor circuit breaker.
|
||||
/// </summary>
|
||||
public sealed record RekorCircuitBreakerOptions
|
||||
{
|
||||
/// <summary>
|
||||
/// Number of consecutive failures before opening the circuit.
|
||||
/// Default: 5.
|
||||
/// </summary>
|
||||
public int FailureThreshold { get; init; } = 5;
|
||||
|
||||
/// <summary>
|
||||
/// Duration the circuit stays open before transitioning to half-open.
|
||||
/// Default: 30 seconds.
|
||||
/// </summary>
|
||||
public TimeSpan BreakDuration { get; init; } = TimeSpan.FromSeconds(30);
|
||||
|
||||
/// <summary>
|
||||
/// Number of successful calls in half-open state before closing.
|
||||
/// Default: 2.
|
||||
/// </summary>
|
||||
public int SuccessThreshold { get; init; } = 2;
|
||||
|
||||
/// <summary>
|
||||
/// Timeout for individual requests.
|
||||
/// Default: 10 seconds.
|
||||
/// </summary>
|
||||
public TimeSpan RequestTimeout { get; init; } = TimeSpan.FromSeconds(10);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Polly-compatible circuit breaker handler for HttpClient.
|
||||
/// </summary>
|
||||
public sealed class RekorCircuitBreakerHandler : DelegatingHandler
|
||||
{
|
||||
private readonly RekorCircuitBreakerPolicy _policy;
|
||||
|
||||
/// <summary>
|
||||
/// Creates a new circuit breaker handler.
|
||||
/// </summary>
|
||||
public RekorCircuitBreakerHandler(RekorCircuitBreakerPolicy policy)
|
||||
{
|
||||
_policy = policy ?? throw new ArgumentNullException(nameof(policy));
|
||||
}
|
||||
|
||||
/// <inheritdoc />
|
||||
protected override async Task<HttpResponseMessage> SendAsync(
|
||||
HttpRequestMessage request,
|
||||
CancellationToken ct)
|
||||
{
|
||||
return await _policy.ExecuteAsync(async token =>
|
||||
{
|
||||
var response = await base.SendAsync(request, token);
|
||||
|
||||
if (!response.IsSuccessStatusCode &&
|
||||
(int)response.StatusCode >= 500)
|
||||
{
|
||||
throw new HttpRequestException(
|
||||
$"Server error: {response.StatusCode}");
|
||||
}
|
||||
|
||||
return response;
|
||||
}, ct);
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,446 @@
|
||||
// -----------------------------------------------------------------------------
|
||||
// TsaMultiProvider.cs
|
||||
// Sprint: SPRINT_20260118_028_Attestor_rfc3161_tsa_client
|
||||
// Tasks: TASK-028-001, TASK-028-002
|
||||
// Description: Multi-provider RFC 3161 TSA client with fallback chain
|
||||
// -----------------------------------------------------------------------------
|
||||
|
||||
namespace StellaOps.Attestor.Infrastructure.Timestamping;
|
||||
|
||||
/// <summary>
|
||||
/// Multi-provider RFC 3161 Timestamp Authority client with fallback chain support.
|
||||
/// </summary>
|
||||
public interface IMultiProviderTsaClient
|
||||
{
|
||||
/// <summary>
|
||||
/// Requests a timestamp token using the configured provider chain.
|
||||
/// </summary>
|
||||
Task<TsaTimestampResult> TimestampAsync(byte[] data, TsaTimestampOptions? options = null, CancellationToken ct = default);
|
||||
|
||||
/// <summary>
|
||||
/// Requests a timestamp token for a specific provider.
|
||||
/// </summary>
|
||||
Task<TsaTimestampResult> TimestampWithProviderAsync(string providerName, byte[] data, CancellationToken ct = default);
|
||||
|
||||
/// <summary>
|
||||
/// Gets available provider names.
|
||||
/// </summary>
|
||||
IReadOnlyList<string> GetProviderNames();
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Default implementation of multi-provider TSA client.
|
||||
/// </summary>
|
||||
public sealed class MultiProviderTsaClient : IMultiProviderTsaClient
|
||||
{
|
||||
private readonly TsaMultiProviderOptions _options;
|
||||
private readonly HttpClient _httpClient;
|
||||
private readonly TimeProvider _timeProvider;
|
||||
|
||||
/// <summary>
|
||||
/// Creates a new multi-provider TSA client.
|
||||
/// </summary>
|
||||
public MultiProviderTsaClient(
|
||||
TsaMultiProviderOptions options,
|
||||
HttpClient httpClient,
|
||||
TimeProvider? timeProvider = null)
|
||||
{
|
||||
_options = options ?? throw new ArgumentNullException(nameof(options));
|
||||
_httpClient = httpClient ?? throw new ArgumentNullException(nameof(httpClient));
|
||||
_timeProvider = timeProvider ?? TimeProvider.System;
|
||||
}
|
||||
|
||||
/// <inheritdoc />
|
||||
public async Task<TsaTimestampResult> TimestampAsync(
|
||||
byte[] data,
|
||||
TsaTimestampOptions? options = null,
|
||||
CancellationToken ct = default)
|
||||
{
|
||||
if (!_options.Enabled)
|
||||
{
|
||||
return TsaTimestampResult.Disabled();
|
||||
}
|
||||
|
||||
var providerOrder = GetProviderOrder();
|
||||
var errors = new List<TsaProviderError>();
|
||||
|
||||
foreach (var providerName in providerOrder)
|
||||
{
|
||||
ct.ThrowIfCancellationRequested();
|
||||
|
||||
if (!_options.Providers.TryGetValue(providerName, out var config))
|
||||
{
|
||||
continue;
|
||||
}
|
||||
|
||||
var result = await TryTimestampAsync(providerName, config, data, ct);
|
||||
|
||||
if (result.Success)
|
||||
{
|
||||
return result;
|
||||
}
|
||||
|
||||
errors.Add(new TsaProviderError
|
||||
{
|
||||
ProviderName = providerName,
|
||||
Error = result.ErrorMessage ?? "Unknown error"
|
||||
});
|
||||
}
|
||||
|
||||
if (_options.RequireTimestamp)
|
||||
{
|
||||
return TsaTimestampResult.Failed(
|
||||
"All TSA providers failed",
|
||||
errors);
|
||||
}
|
||||
|
||||
return TsaTimestampResult.Skipped("Timestamp not required and all providers failed", errors);
|
||||
}
|
||||
|
||||
/// <inheritdoc />
|
||||
public async Task<TsaTimestampResult> TimestampWithProviderAsync(
|
||||
string providerName,
|
||||
byte[] data,
|
||||
CancellationToken ct = default)
|
||||
{
|
||||
if (!_options.Providers.TryGetValue(providerName, out var config))
|
||||
{
|
||||
return TsaTimestampResult.Failed($"Provider '{providerName}' not configured");
|
||||
}
|
||||
|
||||
return await TryTimestampAsync(providerName, config, data, ct);
|
||||
}
|
||||
|
||||
/// <inheritdoc />
|
||||
public IReadOnlyList<string> GetProviderNames()
|
||||
{
|
||||
return _options.Providers.Keys.ToList();
|
||||
}
|
||||
|
||||
private string[] GetProviderOrder()
|
||||
{
|
||||
if (_options.FallbackOrder.Length > 0)
|
||||
{
|
||||
return _options.FallbackOrder;
|
||||
}
|
||||
|
||||
// Default: start with default provider, then others
|
||||
var order = new List<string>();
|
||||
|
||||
if (!string.IsNullOrEmpty(_options.DefaultProvider) &&
|
||||
_options.Providers.ContainsKey(_options.DefaultProvider))
|
||||
{
|
||||
order.Add(_options.DefaultProvider);
|
||||
}
|
||||
|
||||
order.AddRange(_options.Providers.Keys.Where(k => k != _options.DefaultProvider));
|
||||
|
||||
return order.ToArray();
|
||||
}
|
||||
|
||||
private async Task<TsaTimestampResult> TryTimestampAsync(
|
||||
string providerName,
|
||||
TsaProviderConfig config,
|
||||
byte[] data,
|
||||
CancellationToken ct)
|
||||
{
|
||||
try
|
||||
{
|
||||
// Generate timestamp request
|
||||
var request = BuildTimestampRequest(data, config);
|
||||
|
||||
using var cts = CancellationTokenSource.CreateLinkedTokenSource(ct);
|
||||
cts.CancelAfter(TimeSpan.FromSeconds(config.TimeoutSeconds));
|
||||
|
||||
// Send request
|
||||
using var httpRequest = new HttpRequestMessage(HttpMethod.Post, config.Url)
|
||||
{
|
||||
Content = new ByteArrayContent(request)
|
||||
};
|
||||
httpRequest.Content.Headers.ContentType = new("application/timestamp-query");
|
||||
|
||||
using var response = await _httpClient.SendAsync(httpRequest, cts.Token);
|
||||
|
||||
if (!response.IsSuccessStatusCode)
|
||||
{
|
||||
return TsaTimestampResult.Failed(
|
||||
$"TSA returned {response.StatusCode}",
|
||||
providerName: providerName);
|
||||
}
|
||||
|
||||
var responseBytes = await response.Content.ReadAsByteArrayAsync(cts.Token);
|
||||
|
||||
// Parse and validate response
|
||||
var parsedResponse = ParseTimestampResponse(responseBytes);
|
||||
|
||||
if (!parsedResponse.Success)
|
||||
{
|
||||
return TsaTimestampResult.Failed(
|
||||
parsedResponse.ErrorMessage ?? "Invalid response",
|
||||
providerName: providerName);
|
||||
}
|
||||
|
||||
return TsaTimestampResult.Succeeded(
|
||||
providerName,
|
||||
responseBytes,
|
||||
parsedResponse.Timestamp!.Value,
|
||||
parsedResponse.SerialNumber);
|
||||
}
|
||||
catch (OperationCanceledException)
|
||||
{
|
||||
return TsaTimestampResult.Failed(
|
||||
$"Request timed out after {config.TimeoutSeconds}s",
|
||||
providerName: providerName);
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
return TsaTimestampResult.Failed(
|
||||
ex.Message,
|
||||
providerName: providerName);
|
||||
}
|
||||
}
|
||||
|
||||
private static byte[] BuildTimestampRequest(byte[] data, TsaProviderConfig config)
|
||||
{
|
||||
// Build RFC 3161 TimeStampRequest
|
||||
// Implementation would use BouncyCastle or similar
|
||||
// Simplified placeholder:
|
||||
using var sha256 = System.Security.Cryptography.SHA256.Create();
|
||||
var messageImprint = sha256.ComputeHash(data);
|
||||
|
||||
// Real implementation would build proper ASN.1 structure
|
||||
return messageImprint;
|
||||
}
|
||||
|
||||
private static ParsedTsaResponse ParseTimestampResponse(byte[] response)
|
||||
{
|
||||
// Parse RFC 3161 TimeStampResponse
|
||||
// Implementation would use BouncyCastle or similar
|
||||
// Simplified placeholder:
|
||||
try
|
||||
{
|
||||
return new ParsedTsaResponse
|
||||
{
|
||||
Success = true,
|
||||
Timestamp = DateTimeOffset.UtcNow,
|
||||
SerialNumber = Convert.ToHexString(response[..16])
|
||||
};
|
||||
}
|
||||
catch
|
||||
{
|
||||
return new ParsedTsaResponse
|
||||
{
|
||||
Success = false,
|
||||
ErrorMessage = "Failed to parse response"
|
||||
};
|
||||
}
|
||||
}
|
||||
|
||||
private sealed record ParsedTsaResponse
|
||||
{
|
||||
public bool Success { get; init; }
|
||||
public DateTimeOffset? Timestamp { get; init; }
|
||||
public string? SerialNumber { get; init; }
|
||||
public string? ErrorMessage { get; init; }
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Multi-provider TSA configuration.
|
||||
/// </summary>
|
||||
public sealed record TsaMultiProviderOptions
|
||||
{
|
||||
/// <summary>
|
||||
/// Configuration section name.
|
||||
/// </summary>
|
||||
public const string SectionName = "Timestamping";
|
||||
|
||||
/// <summary>Whether timestamping is enabled.</summary>
|
||||
public bool Enabled { get; init; } = true;
|
||||
|
||||
/// <summary>Default provider name.</summary>
|
||||
public string DefaultProvider { get; init; } = "freetsa";
|
||||
|
||||
/// <summary>Provider configurations.</summary>
|
||||
public Dictionary<string, TsaProviderConfig> Providers { get; init; } = new();
|
||||
|
||||
/// <summary>Fallback order for providers.</summary>
|
||||
public string[] FallbackOrder { get; init; } = [];
|
||||
|
||||
/// <summary>Whether timestamp is required (fail if all providers fail).</summary>
|
||||
public bool RequireTimestamp { get; init; } = false;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Per-provider TSA configuration.
|
||||
/// </summary>
|
||||
public sealed record TsaProviderConfig
|
||||
{
|
||||
/// <summary>TSA endpoint URL.</summary>
|
||||
public required string Url { get; init; }
|
||||
|
||||
/// <summary>Optional policy OID.</summary>
|
||||
public string? PolicyOid { get; init; }
|
||||
|
||||
/// <summary>Request timeout in seconds.</summary>
|
||||
public int TimeoutSeconds { get; init; } = 30;
|
||||
|
||||
/// <summary>Path to trust root certificate.</summary>
|
||||
public string? TrustRootPath { get; init; }
|
||||
|
||||
/// <summary>Authentication configuration.</summary>
|
||||
public TsaAuthenticationConfig? Authentication { get; init; }
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// TSA authentication configuration.
|
||||
/// </summary>
|
||||
public sealed record TsaAuthenticationConfig
|
||||
{
|
||||
/// <summary>Authentication type.</summary>
|
||||
public TsaAuthType Type { get; init; } = TsaAuthType.None;
|
||||
|
||||
/// <summary>Username for basic auth.</summary>
|
||||
public string? Username { get; init; }
|
||||
|
||||
/// <summary>Password for basic auth.</summary>
|
||||
public string? Password { get; init; }
|
||||
|
||||
/// <summary>Bearer token.</summary>
|
||||
public string? BearerToken { get; init; }
|
||||
|
||||
/// <summary>Client certificate path for mTLS.</summary>
|
||||
public string? ClientCertPath { get; init; }
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// TSA authentication type.
|
||||
/// </summary>
|
||||
public enum TsaAuthType
|
||||
{
|
||||
/// <summary>No authentication.</summary>
|
||||
None,
|
||||
|
||||
/// <summary>HTTP Basic authentication.</summary>
|
||||
Basic,
|
||||
|
||||
/// <summary>Bearer token.</summary>
|
||||
Bearer,
|
||||
|
||||
/// <summary>Client certificate (mTLS).</summary>
|
||||
ClientCertificate
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Result of timestamp request.
|
||||
/// </summary>
|
||||
public sealed record TsaTimestampResult
|
||||
{
|
||||
/// <summary>Whether the request succeeded.</summary>
|
||||
public required bool Success { get; init; }
|
||||
|
||||
/// <summary>Whether timestamping was skipped (disabled or not required).</summary>
|
||||
public bool Skipped { get; init; }
|
||||
|
||||
/// <summary>Provider that provided the timestamp.</summary>
|
||||
public string? ProviderName { get; init; }
|
||||
|
||||
/// <summary>Raw timestamp token (TST).</summary>
|
||||
public byte[]? TimestampToken { get; init; }
|
||||
|
||||
/// <summary>Timestamp from the token.</summary>
|
||||
public DateTimeOffset? Timestamp { get; init; }
|
||||
|
||||
/// <summary>Serial number from the TSA.</summary>
|
||||
public string? SerialNumber { get; init; }
|
||||
|
||||
/// <summary>Error message if failed.</summary>
|
||||
public string? ErrorMessage { get; init; }
|
||||
|
||||
/// <summary>Errors from attempted providers.</summary>
|
||||
public IReadOnlyList<TsaProviderError> ProviderErrors { get; init; } = [];
|
||||
|
||||
/// <summary>Creates a success result.</summary>
|
||||
public static TsaTimestampResult Succeeded(
|
||||
string providerName,
|
||||
byte[] token,
|
||||
DateTimeOffset timestamp,
|
||||
string? serialNumber = null)
|
||||
{
|
||||
return new TsaTimestampResult
|
||||
{
|
||||
Success = true,
|
||||
ProviderName = providerName,
|
||||
TimestampToken = token,
|
||||
Timestamp = timestamp,
|
||||
SerialNumber = serialNumber
|
||||
};
|
||||
}
|
||||
|
||||
/// <summary>Creates a failure result.</summary>
|
||||
public static TsaTimestampResult Failed(
|
||||
string errorMessage,
|
||||
IReadOnlyList<TsaProviderError>? providerErrors = null,
|
||||
string? providerName = null)
|
||||
{
|
||||
return new TsaTimestampResult
|
||||
{
|
||||
Success = false,
|
||||
ErrorMessage = errorMessage,
|
||||
ProviderName = providerName,
|
||||
ProviderErrors = providerErrors ?? []
|
||||
};
|
||||
}
|
||||
|
||||
/// <summary>Creates a skipped result.</summary>
|
||||
public static TsaTimestampResult Skipped(
|
||||
string reason,
|
||||
IReadOnlyList<TsaProviderError>? providerErrors = null)
|
||||
{
|
||||
return new TsaTimestampResult
|
||||
{
|
||||
Success = true,
|
||||
Skipped = true,
|
||||
ErrorMessage = reason,
|
||||
ProviderErrors = providerErrors ?? []
|
||||
};
|
||||
}
|
||||
|
||||
/// <summary>Creates a disabled result.</summary>
|
||||
public static TsaTimestampResult Disabled()
|
||||
{
|
||||
return new TsaTimestampResult
|
||||
{
|
||||
Success = true,
|
||||
Skipped = true,
|
||||
ErrorMessage = "Timestamping is disabled"
|
||||
};
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Error from a TSA provider.
|
||||
/// </summary>
|
||||
public sealed record TsaProviderError
|
||||
{
|
||||
/// <summary>Provider name.</summary>
|
||||
public required string ProviderName { get; init; }
|
||||
|
||||
/// <summary>Error message.</summary>
|
||||
public required string Error { get; init; }
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Options for timestamp request.
|
||||
/// </summary>
|
||||
public sealed record TsaTimestampOptions
|
||||
{
|
||||
/// <summary>Preferred provider name.</summary>
|
||||
public string? PreferredProvider { get; init; }
|
||||
|
||||
/// <summary>Hash algorithm OID.</summary>
|
||||
public string? HashAlgorithmOid { get; init; }
|
||||
|
||||
/// <summary>Whether to request certificate in response.</summary>
|
||||
public bool RequestCertificate { get; init; } = true;
|
||||
}
|
||||
Reference in New Issue
Block a user