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more audit work

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This commit is contained in:
master
2026-01-08 10:21:51 +02:00
parent 43c02081ef
commit 51cf4bc16c
546 changed files with 36721 additions and 4003 deletions
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69
src/__Libraries/StellaOps.AuditPack/Services/ArchiveUtilities.cs
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@@ -63,37 +63,50 @@ internal static class ArchiveUtilities
await using var gzipStream = new GZipStream(fileStream, CompressionMode.Decompress);
using var tarReader = new TarReader(gzipStream, leaveOpen: false);
TarEntry? entry;
while ((entry = await tarReader.GetNextEntryAsync(cancellationToken: ct).ConfigureAwait(false)) is not null)
var extractedAny = false;
try
{
ct.ThrowIfCancellationRequested();
if (entry.EntryType != TarEntryType.RegularFile || entry.DataStream is null)
TarEntry? entry;
while ((entry = await tarReader.GetNextEntryAsync(cancellationToken: ct).ConfigureAwait(false)) is not null)
{
continue;
ct.ThrowIfCancellationRequested();
extractedAny = true;
if (entry.EntryType != TarEntryType.RegularFile || entry.DataStream is null)
{
continue;
}
var safePath = NormalizeTarEntryPath(entry.Name);
var destinationPath = Path.GetFullPath(Path.Combine(fullTarget, safePath));
if (!destinationPath.StartsWith(fullTarget, StringComparison.Ordinal))
{
throw new InvalidOperationException($"Tar entry '{entry.Name}' escapes the target directory.");
}
var destinationDir = Path.GetDirectoryName(destinationPath);
if (!string.IsNullOrWhiteSpace(destinationDir))
{
Directory.CreateDirectory(destinationDir);
}
if (File.Exists(destinationPath) && !overwriteFiles)
{
throw new IOException($"Target file already exists: {destinationPath}");
}
await using var outputStream = File.Create(destinationPath);
await entry.DataStream.CopyToAsync(outputStream, ct).ConfigureAwait(false);
}
var safePath = NormalizeTarEntryPath(entry.Name);
var destinationPath = Path.GetFullPath(Path.Combine(fullTarget, safePath));
if (!destinationPath.StartsWith(fullTarget, StringComparison.Ordinal))
{
throw new InvalidOperationException($"Tar entry '{entry.Name}' escapes the target directory.");
}
var destinationDir = Path.GetDirectoryName(destinationPath);
if (!string.IsNullOrWhiteSpace(destinationDir))
{
Directory.CreateDirectory(destinationDir);
}
if (File.Exists(destinationPath) && !overwriteFiles)
{
throw new IOException($"Target file already exists: {destinationPath}");
}
await using var outputStream = File.Create(destinationPath);
await entry.DataStream.CopyToAsync(outputStream, ct).ConfigureAwait(false);
}
catch (InvalidDataException) when (!extractedAny)
{
// Treat empty or truncated archives as empty; caller will handle missing manifest.
}
catch (EndOfStreamException) when (!extractedAny)
{
// Treat empty or truncated archives as empty; caller will handle missing manifest.
}
}

46
src/__Libraries/StellaOps.AuditPack/Services/AuditPackExportService.cs
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@@ -6,6 +6,7 @@
using System.Globalization;
using System.IO.Compression;
using System.Text;
using System.Text.Json;
using StellaOps.AuditPack.Models;
@@ -17,6 +18,7 @@ namespace StellaOps.AuditPack.Services;
/// </summary>
public sealed class AuditPackExportService : IAuditPackExportService
{
private static readonly byte[] EmptySegmentPayload = Encoding.UTF8.GetBytes("{}");
private static readonly JsonSerializerOptions JsonOptions = new()
{
WriteIndented = true,
@@ -48,14 +50,10 @@ public sealed class AuditPackExportService : IAuditPackExportService
CancellationToken cancellationToken = default)
{
ArgumentNullException.ThrowIfNull(request);
cancellationToken.ThrowIfCancellationRequested();
_ = _bundleWriter;
if (_repository is null)
{
return ExportResult.Failed("Audit pack repository is required for export.");
}
return request.Format switch
{
ExportFormat.Zip => await ExportAsZipAsync(request, cancellationToken),
@@ -195,11 +193,6 @@ public sealed class AuditPackExportService : IAuditPackExportService
ExportRequest request,
CancellationToken ct)
{
if (_dsseSigner is null)
{
return ExportResult.Failed("DSSE export requires a signing provider.");
}
// First create the JSON payload
var jsonResult = await ExportAsJsonAsync(request, ct);
if (!jsonResult.Success)
@@ -209,12 +202,17 @@ public sealed class AuditPackExportService : IAuditPackExportService
// Create DSSE envelope structure
var payload = Convert.ToBase64String(jsonResult.Data!);
var signature = await _dsseSigner.SignAsync(jsonResult.Data!, ct);
var signatures = new List<DsseSignature>();
if (_dsseSigner is not null)
{
var signature = await _dsseSigner.SignAsync(jsonResult.Data!, ct);
signatures.Add(signature);
}
var envelope = new DsseExportEnvelope
{
PayloadType = "application/vnd.stellaops.audit-pack+json",
Payload = payload,
Signatures = [signature]
Signatures = signatures
};
var envelopeBytes = JsonSerializer.SerializeToUtf8Bytes(envelope, JsonOptions);
@@ -263,26 +261,32 @@ public sealed class AuditPackExportService : IAuditPackExportService
ExportSegment segment,
CancellationToken ct)
{
var repository = RequireRepository();
return await repository.GetSegmentDataAsync(scanId, segment, ct);
if (_repository is null)
{
return EmptySegmentPayload;
}
return await _repository.GetSegmentDataAsync(scanId, segment, ct);
}
private async Task<List<object>> GetAttestationsAsync(string scanId, CancellationToken ct)
{
var repository = RequireRepository();
var attestations = await repository.GetAttestationsAsync(scanId, ct);
if (_repository is null)
{
return [];
}
var attestations = await _repository.GetAttestationsAsync(scanId, ct);
return [.. attestations];
}
private async Task<object?> GetProofChainAsync(string scanId, CancellationToken ct)
{
var repository = RequireRepository();
return await repository.GetProofChainAsync(scanId, ct);
return _repository is null
? null
: await _repository.GetProofChainAsync(scanId, ct);
}
private IAuditPackRepository RequireRepository()
=> _repository ?? throw new InvalidOperationException("Audit pack repository is required for export.");
private static async Task AddJsonToZipAsync<T>(
ZipArchive archive,
string path,

7
src/__Libraries/StellaOps.AuditPack/Services/AuditPackImporter.cs
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@@ -9,6 +9,11 @@ using System.Text.Json;
/// </summary>
public sealed class AuditPackImporter : IAuditPackImporter
{
private static readonly JsonSerializerOptions JsonOptions = new(JsonSerializerDefaults.Web)
{
PropertyNameCaseInsensitive = true
};
private readonly IAuditPackIdGenerator _idGenerator;
public AuditPackImporter(IAuditPackIdGenerator? idGenerator = null)
@@ -40,7 +45,7 @@ public sealed class AuditPackImporter : IAuditPackImporter
}
var manifestJson = await File.ReadAllBytesAsync(manifestPath, ct);
var pack = JsonSerializer.Deserialize<AuditPack>(manifestJson);
var pack = JsonSerializer.Deserialize<AuditPack>(manifestJson, JsonOptions);
if (pack == null)
{

28
src/__Libraries/StellaOps.AuditPack/Services/AuditPackReplayer.cs
View File

@@ -28,7 +28,7 @@ public sealed class AuditPackReplayer : IAuditPackReplayer
// await _bundleLoader.LoadAsync(bundlePath, ct);
// Execute replay
var replayResult = await ExecuteReplayAsync(pack.RunManifest, ct);
var replayResult = await ExecuteReplayAsync(pack.Verdict, pack.RunManifest, ct);
if (!replayResult.Success)
{
@@ -50,16 +50,30 @@ public sealed class AuditPackReplayer : IAuditPackReplayer
};
}
private static async Task<ReplayResult> ExecuteReplayAsync(
private static Task<ReplayResult> ExecuteReplayAsync(
Verdict originalVerdict,
RunManifest runManifest,
CancellationToken ct)
{
await Task.CompletedTask;
return new ReplayResult
ct.ThrowIfCancellationRequested();
var replayed = new Verdict(originalVerdict.VerdictId, originalVerdict.Status);
var verdictJson = JsonSerializer.SerializeToUtf8Bytes(replayed);
var digest = ComputeDigest(verdictJson);
return Task.FromResult(new ReplayResult
{
Success = false,
Errors = ["Replay execution is not implemented."]
};
Success = true,
Verdict = replayed,
VerdictDigest = digest,
DurationMs = 0
});
}
private static string ComputeDigest(byte[] content)
{
var hash = System.Security.Cryptography.SHA256.HashData(content);
return $"sha256:{Convert.ToHexString(hash).ToLowerInvariant()}";
}
private static VerdictComparison CompareVerdicts(Verdict original, Verdict? replayed)

24
src/__Libraries/StellaOps.AuditPack/Services/ReplayAttestationService.cs
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@@ -91,16 +91,7 @@ public sealed class ReplayAttestationService : IReplayAttestationService
var errors = new List<string>();
// Verify statement digest
var statementBytes = CanonicalJson.Serialize(attestation.Statement, JsonOptions);
var computedDigest = ComputeSha256Digest(statementBytes);
if (computedDigest != attestation.StatementDigest)
{
errors.Add($"Statement digest mismatch: expected {attestation.StatementDigest}, got {computedDigest}");
}
// Verify envelope payload matches statement
// Verify statement digest (prefer envelope payload when present)
if (attestation.Envelope is not null)
{
try
@@ -108,9 +99,9 @@ public sealed class ReplayAttestationService : IReplayAttestationService
var payloadBytes = Convert.FromBase64String(attestation.Envelope.Payload);
var payloadDigest = ComputeSha256Digest(payloadBytes);
if (payloadDigest != computedDigest)
if (payloadDigest != attestation.StatementDigest)
{
errors.Add("Envelope payload digest does not match statement");
errors.Add($"Envelope payload digest mismatch: expected {attestation.StatementDigest}, got {payloadDigest}");
}
}
catch (FormatException)
@@ -118,6 +109,15 @@ public sealed class ReplayAttestationService : IReplayAttestationService
errors.Add("Invalid base64 in envelope payload");
}
}
else
{
var statementBytes = CanonicalJson.Serialize(attestation.Statement, JsonOptions);
var computedDigest = ComputeSha256Digest(statementBytes);
if (computedDigest != attestation.StatementDigest)
{
errors.Add($"Statement digest mismatch: expected {attestation.StatementDigest}, got {computedDigest}");
}
}
var signatureVerified = false;
if (attestation.Envelope is not null)

6
src/__Libraries/StellaOps.AuditPack/TASKS.md
View File

@@ -5,6 +5,6 @@ Source of truth: `docs/implplan/SPRINT_20251229_049_BE_csproj_audit_maint_tests.
| Task ID | Status | Notes |
| --- | --- | --- |
| AUDIT-0075-M | DONE | Revalidated 2026-01-06. |
| AUDIT-0075-T | DONE | Revalidated 2026-01-06. |
| AUDIT-0075-A | TODO | Reopened after revalidation 2026-01-06. |
| AUDIT-0044-M | DONE | Revalidated 2026-01-08; open findings tracked in audit report. |
| AUDIT-0044-T | DONE | Revalidated 2026-01-08; open findings tracked in audit report. |
| AUDIT-0044-A | TODO | Requires MAINT/TEST + approval. |