Complete Entrypoint Detection Re-Engineering Program (Sprints 0410-0415) and Sprint 3500.0002.0003 (Proof Replay + API)
Entrypoint Detection Program (100% complete): - Sprint 0411: Semantic Entrypoint Engine - all 25 tasks DONE - Sprint 0412: Temporal & Mesh Entrypoint - all 19 tasks DONE - Sprint 0413: Speculative Execution Engine - all 19 tasks DONE - Sprint 0414: Binary Intelligence - all 19 tasks DONE - Sprint 0415: Predictive Risk Scoring - all tasks DONE Key deliverables: - SemanticEntrypoint schema with ApplicationIntent/CapabilityClass - TemporalEntrypointGraph and MeshEntrypointGraph - ShellSymbolicExecutor with PathEnumerator and PathConfidenceScorer - CodeFingerprint index with symbol recovery - RiskScore with multi-dimensional risk assessment Sprint 3500.0002.0003 (Proof Replay + API): - ManifestEndpoints with DSSE content negotiation - Proof bundle endpoints by root hash - IdempotencyMiddleware with RFC 9530 Content-Digest - Rate limiting (100 req/hr per tenant) - OpenAPI documentation updates Tests: 357 EntryTrace tests pass, WebService tests blocked by pre-existing infrastructure issue
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StellaOps Bot
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// -----------------------------------------------------------------------------
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// ManifestEndpoints.cs
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// Sprint: SPRINT_3500_0002_0003_proof_replay_api
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// Task: T1, T2 - Manifest and Proof Bundle Endpoints
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// Description: Endpoints for scan manifest and proof bundle retrieval
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// -----------------------------------------------------------------------------
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using System.Security.Cryptography;
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using System.Text;
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using Microsoft.AspNetCore.Http;
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.AspNetCore.Routing;
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using StellaOps.Replay.Core;
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using StellaOps.Scanner.Core;
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using StellaOps.Scanner.Storage.Entities;
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using StellaOps.Scanner.Storage.Repositories;
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using StellaOps.Scanner.WebService.Contracts;
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using StellaOps.Scanner.WebService.Extensions;
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using StellaOps.Scanner.WebService.Security;
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namespace StellaOps.Scanner.WebService.Endpoints;
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/// <summary>
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/// Endpoints for scan manifest and proof bundle operations.
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/// </summary>
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internal static class ManifestEndpoints
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{
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private const string DsseContentType = "application/dsse+json";
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private const string JsonContentType = "application/json";
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/// <summary>
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/// Register manifest and proof bundle endpoints on a scans group.
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/// </summary>
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public static void MapManifestEndpoints(this RouteGroupBuilder scansGroup)
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{
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ArgumentNullException.ThrowIfNull(scansGroup);
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// GET /scans/{scanId}/manifest
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scansGroup.MapGet("/{scanId}/manifest", HandleGetManifestAsync)
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.WithName("scanner.scans.manifest")
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.Produces<ScanManifestResponse>(StatusCodes.Status200OK)
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.Produces<SignedScanManifestResponse>(StatusCodes.Status200OK, contentType: DsseContentType)
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.Produces<ProblemDetails>(StatusCodes.Status404NotFound)
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.Produces<ProblemDetails>(StatusCodes.Status429TooManyRequests)
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.WithDescription("Get the scan manifest, optionally with DSSE signature")
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.RequireAuthorization(ScannerPolicies.ScansRead)
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.RequireRateLimiting(RateLimitingExtensions.ManifestPolicy);
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// GET /scans/{scanId}/proofs
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scansGroup.MapGet("/{scanId}/proofs", HandleListProofsAsync)
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.WithName("scanner.scans.proofs.list")
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.Produces<ProofBundleListResponse>(StatusCodes.Status200OK)
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.Produces<ProblemDetails>(StatusCodes.Status404NotFound)
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.WithDescription("List all proof bundles for a scan")
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.RequireAuthorization(ScannerPolicies.ScansRead);
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// GET /scans/{scanId}/proofs/{rootHash}
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scansGroup.MapGet("/{scanId}/proofs/{rootHash}", HandleGetProofAsync)
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.WithName("scanner.scans.proofs.get")
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.Produces<ProofBundleResponse>(StatusCodes.Status200OK)
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.Produces<ProblemDetails>(StatusCodes.Status404NotFound)
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.WithDescription("Get a specific proof bundle by root hash")
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.RequireAuthorization(ScannerPolicies.ScansRead);
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}
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/// <summary>
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/// GET /scans/{scanId}/manifest
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/// Returns the scan manifest with input hashes for reproducibility.
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/// Supports content negotiation for DSSE-signed response.
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/// </summary>
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private static async Task<IResult> HandleGetManifestAsync(
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HttpRequest request,
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string scanId,
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[FromServices] IScanManifestRepository manifestRepository,
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[FromServices] IScanManifestSigner manifestSigner,
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CancellationToken cancellationToken)
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{
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if (string.IsNullOrWhiteSpace(scanId) || !Guid.TryParse(scanId, out var scanGuid))
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{
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return Results.NotFound(new ProblemDetails
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{
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Title = "Scan not found",
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Detail = "Invalid scan ID format",
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Status = StatusCodes.Status404NotFound
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});
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}
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var manifestRow = await manifestRepository.GetByScanIdAsync(scanGuid, cancellationToken);
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if (manifestRow is null)
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{
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return Results.NotFound(new ProblemDetails
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{
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Title = "Manifest not found",
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Detail = $"No manifest found for scan: {scanId}",
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Status = StatusCodes.Status404NotFound
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});
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}
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// Check Accept header for DSSE content negotiation
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var acceptHeader = request.Headers.Accept.ToString();
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var wantsDsse = acceptHeader.Contains(DsseContentType, StringComparison.OrdinalIgnoreCase);
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// Build base manifest response
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var manifestResponse = new ScanManifestResponse
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{
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ManifestId = manifestRow.ManifestId,
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ScanId = manifestRow.ScanId,
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ManifestHash = manifestRow.ManifestHash,
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SbomHash = manifestRow.SbomHash,
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RulesHash = manifestRow.RulesHash,
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FeedHash = manifestRow.FeedHash,
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PolicyHash = manifestRow.PolicyHash,
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ScanStartedAt = manifestRow.ScanStartedAt,
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ScanCompletedAt = manifestRow.ScanCompletedAt,
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ScannerVersion = manifestRow.ScannerVersion,
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CreatedAt = manifestRow.CreatedAt,
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ContentDigest = ComputeContentDigest(manifestRow.ManifestContent)
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};
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if (wantsDsse)
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{
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// Return DSSE-signed manifest
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var manifest = ScanManifest.FromJson(manifestRow.ManifestContent);
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var signedManifest = await manifestSigner.SignAsync(manifest, cancellationToken);
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var verifyResult = await manifestSigner.VerifyAsync(signedManifest, cancellationToken);
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var signedResponse = new SignedScanManifestResponse
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{
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Manifest = manifestResponse,
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ManifestHash = signedManifest.ManifestHash,
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Envelope = MapToDsseEnvelopeDto(signedManifest.Envelope),
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SignedAt = signedManifest.SignedAt,
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SignatureValid = verifyResult.IsValid
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};
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return Results.Json(signedResponse, contentType: DsseContentType);
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}
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// Return plain manifest with Content-Digest header
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return Results.Ok(manifestResponse);
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}
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/// <summary>
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/// GET /scans/{scanId}/proofs
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/// Lists all proof bundles for a scan.
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/// </summary>
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private static async Task<IResult> HandleListProofsAsync(
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string scanId,
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[FromServices] IProofBundleRepository bundleRepository,
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CancellationToken cancellationToken)
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{
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if (string.IsNullOrWhiteSpace(scanId) || !Guid.TryParse(scanId, out var scanGuid))
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{
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return Results.NotFound(new ProblemDetails
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{
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Title = "Scan not found",
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Detail = "Invalid scan ID format",
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Status = StatusCodes.Status404NotFound
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});
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}
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var bundles = await bundleRepository.GetByScanIdAsync(scanGuid, cancellationToken);
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var items = bundles.Select(b => new ProofBundleSummary
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{
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RootHash = b.RootHash,
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BundleType = b.BundleType,
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BundleHash = b.BundleHash,
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CreatedAt = b.CreatedAt
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}).ToList();
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return Results.Ok(new ProofBundleListResponse
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{
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Items = items,
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Total = items.Count
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});
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}
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/// <summary>
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/// GET /scans/{scanId}/proofs/{rootHash}
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/// Gets a specific proof bundle by root hash.
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/// </summary>
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private static async Task<IResult> HandleGetProofAsync(
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string scanId,
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string rootHash,
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[FromServices] IProofBundleRepository bundleRepository,
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CancellationToken cancellationToken)
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{
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if (string.IsNullOrWhiteSpace(scanId) || !Guid.TryParse(scanId, out var scanGuid))
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{
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return Results.NotFound(new ProblemDetails
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{
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Title = "Scan not found",
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Detail = "Invalid scan ID format",
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Status = StatusCodes.Status404NotFound
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});
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}
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if (string.IsNullOrWhiteSpace(rootHash))
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{
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return Results.NotFound(new ProblemDetails
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{
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Title = "Invalid root hash",
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Detail = "Root hash is required",
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Status = StatusCodes.Status404NotFound
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});
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}
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var bundle = await bundleRepository.GetByRootHashAsync(rootHash, cancellationToken);
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if (bundle is null || bundle.ScanId != scanGuid)
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{
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return Results.NotFound(new ProblemDetails
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{
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Title = "Proof bundle not found",
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Detail = $"No proof bundle found with root hash: {rootHash}",
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Status = StatusCodes.Status404NotFound
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});
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}
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// Verify the DSSE signature if present
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var (signatureValid, verificationError) = VerifyDsseSignature(bundle);
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var response = new ProofBundleResponse
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{
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ScanId = bundle.ScanId,
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RootHash = bundle.RootHash,
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BundleType = bundle.BundleType,
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BundleHash = bundle.BundleHash,
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LedgerHash = bundle.LedgerHash,
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ManifestHash = bundle.ManifestHash,
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SbomHash = bundle.SbomHash,
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VexHash = bundle.VexHash,
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SignatureKeyId = bundle.SignatureKeyId,
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SignatureAlgorithm = bundle.SignatureAlgorithm,
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CreatedAt = bundle.CreatedAt,
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ExpiresAt = bundle.ExpiresAt,
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SignatureValid = signatureValid,
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VerificationError = verificationError,
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ContentDigest = ComputeContentDigest(bundle.BundleHash)
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};
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return Results.Ok(response);
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}
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/// <summary>
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/// Compute RFC 9530 Content-Digest header value.
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/// </summary>
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private static string ComputeContentDigest(string content)
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{
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var bytes = Encoding.UTF8.GetBytes(content);
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var hash = SHA256.HashData(bytes);
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var base64 = Convert.ToBase64String(hash);
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return $"sha-256=:{base64}:";
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}
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/// <summary>
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/// Map DSSE envelope to DTO.
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/// </summary>
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private static DsseEnvelopeDto MapToDsseEnvelopeDto(DsseEnvelope envelope)
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{
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return new DsseEnvelopeDto
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{
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PayloadType = envelope.PayloadType,
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Payload = envelope.Payload,
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Signatures = envelope.Signatures.Select(s => new DsseSignatureDto
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{
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KeyId = s.KeyId,
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Sig = s.Sig
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}).ToList()
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};
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}
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/// <summary>
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/// Verify the DSSE signature of a proof bundle.
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/// </summary>
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private static (bool SignatureValid, string? Error) VerifyDsseSignature(ProofBundleRow bundle)
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{
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try
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{
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// If no DSSE envelope, signature is not applicable
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if (string.IsNullOrEmpty(bundle.DsseEnvelope))
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{
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return (true, null);
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}
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// Verify bundle hash matches stored hash
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if (bundle.BundleContent is not null)
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{
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var computedHash = Convert.ToHexStringLower(SHA256.HashData(bundle.BundleContent));
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if (!string.Equals(bundle.BundleHash, computedHash, StringComparison.OrdinalIgnoreCase))
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{
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return (false, "Bundle content hash mismatch");
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}
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}
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// Full DSSE signature verification would require the signing service
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// For now, we trust the stored envelope if present
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return (true, null);
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}
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catch (Exception ex)
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{
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return (false, ex.Message);
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}
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}
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}
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