Complete batch 012 (golden set diff) and 013 (advisory chat), fix build errors
Sprints completed: - SPRINT_20260110_012_* (golden set diff layer - 10 sprints) - SPRINT_20260110_013_* (advisory chat - 4 sprints) Build fixes applied: - Fix namespace conflicts with Microsoft.Extensions.Options.Options.Create - Fix VexDecisionReachabilityIntegrationTests API drift (major rewrite) - Fix VexSchemaValidationTests FluentAssertions method name - Fix FixChainGateIntegrationTests ambiguous type references - Fix AdvisoryAI test files required properties and namespace aliases - Add stub types for CveMappingController (ICveSymbolMappingService) - Fix VerdictBuilderService static context issue Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
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// Licensed under AGPL-3.0-or-later. Copyright (C) 2026 StellaOps Contributors.
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using System.Collections.Immutable;
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using Microsoft.Extensions.Logging;
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namespace StellaOps.BinaryIndex.Analysis;
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/// <summary>
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/// Adapter that implements <see cref="IBinaryReachabilityService"/> using ReachGraph module.
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/// </summary>
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/// <remarks>
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/// <para>
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/// This adapter bridges the BinaryIndex.Analysis module to the ReachGraph service layer.
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/// It can be configured to use either:
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/// </para>
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/// <list type="bullet">
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/// <item>Direct service injection (when running in same process as ReachGraph)</item>
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/// <item>HTTP client (when ReachGraph runs as separate service)</item>
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/// </list>
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/// <para>
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/// To use this adapter with direct injection, register it in DI after registering
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/// the ReachGraph services:
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/// <code>
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/// services.AddReachGraphSliceService(); // From ReachGraph.WebService
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/// services.AddBinaryReachabilityService<ReachGraphBinaryReachabilityService>();
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/// </code>
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/// </para>
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/// <para>
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/// To use this adapter with HTTP client, implement a custom adapter that uses
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/// <c>IHttpClientFactory</c> to call the ReachGraph API endpoints.
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/// </para>
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/// </remarks>
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public sealed class ReachGraphBinaryReachabilityService : IBinaryReachabilityService
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{
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private readonly IReachGraphSliceClient _sliceClient;
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private readonly ILogger<ReachGraphBinaryReachabilityService> _logger;
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/// <summary>
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/// Creates a new ReachGraph-backed reachability service.
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/// </summary>
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/// <param name="sliceClient">ReachGraph slice client.</param>
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/// <param name="logger">Logger.</param>
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public ReachGraphBinaryReachabilityService(
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IReachGraphSliceClient sliceClient,
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ILogger<ReachGraphBinaryReachabilityService> logger)
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{
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_sliceClient = sliceClient;
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_logger = logger;
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}
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/// <inheritdoc />
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public async Task<BinaryReachabilityResult> AnalyzeCveReachabilityAsync(
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string artifactDigest,
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string cveId,
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string tenantId,
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BinaryReachabilityOptions? options = null,
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CancellationToken ct = default)
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{
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options ??= BinaryReachabilityOptions.Default;
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_logger.LogDebug("Analyzing CVE {CveId} reachability in artifact {Digest}",
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cveId, TruncateDigest(artifactDigest));
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try
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{
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var response = await _sliceClient.SliceByCveAsync(
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artifactDigest,
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cveId,
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tenantId,
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options.MaxPaths,
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ct);
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if (response is null)
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{
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_logger.LogDebug("No reachability data found for CVE {CveId}", cveId);
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return BinaryReachabilityResult.NotReachable();
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}
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// Map ReachGraph paths to our model
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var paths = response.Paths
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.Select(p => new ReachabilityPath
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{
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EntryPoint = p.Entrypoint,
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Sink = p.Sink,
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Nodes = p.Hops.ToImmutableArray()
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})
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.ToImmutableArray();
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return new BinaryReachabilityResult
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{
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IsReachable = paths.Length > 0,
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ReachableSinks = response.Sinks.ToImmutableArray(),
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Paths = paths,
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Confidence = 0.95m
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};
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}
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catch (Exception ex) when (ex is not OperationCanceledException)
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{
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_logger.LogWarning(ex, "Failed to analyze CVE {CveId} reachability", cveId);
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return BinaryReachabilityResult.NotReachable();
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}
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}
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/// <inheritdoc />
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public async Task<ImmutableArray<ReachabilityPath>> FindPathsAsync(
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string artifactDigest,
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ImmutableArray<string> entryPoints,
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ImmutableArray<string> sinks,
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string tenantId,
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int maxDepth = 20,
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CancellationToken ct = default)
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{
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_logger.LogDebug("Finding paths in artifact {Digest} from {EntryCount} entries to {SinkCount} sinks",
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TruncateDigest(artifactDigest), entryPoints.Length, sinks.Length);
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var allPaths = new List<ReachabilityPath>();
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try
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{
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// Query for each entry point pattern
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foreach (var entryPoint in entryPoints)
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{
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var response = await _sliceClient.SliceByEntrypointAsync(
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artifactDigest,
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entryPoint,
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tenantId,
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maxDepth,
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ct);
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if (response is null)
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continue;
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// Check if any sink is reachable from this slice
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// The slice contains all nodes reachable from the entry point
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var reachableNodeIds = response.Nodes
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.Select(n => n.Ref)
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.ToHashSet(StringComparer.OrdinalIgnoreCase);
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foreach (var sink in sinks)
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{
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if (reachableNodeIds.Contains(sink))
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{
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// Sink is reachable - construct path
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// Note: This is simplified; real implementation would trace actual path
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allPaths.Add(new ReachabilityPath
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{
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EntryPoint = entryPoint,
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Sink = sink,
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Nodes = [entryPoint, sink] // Simplified
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});
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}
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}
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}
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return allPaths.ToImmutableArray();
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}
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catch (Exception ex) when (ex is not OperationCanceledException)
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{
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_logger.LogWarning(ex, "Failed to find paths");
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return ImmutableArray<ReachabilityPath>.Empty;
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}
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}
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private static string TruncateDigest(string digest) =>
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digest.Length > 20 ? digest[..20] + "..." : digest;
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}
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/// <summary>
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/// Client interface for ReachGraph slice operations.
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/// </summary>
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/// <remarks>
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/// This interface abstracts the ReachGraph slice service to enable
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/// different implementations (direct injection, HTTP client, gRPC).
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/// </remarks>
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public interface IReachGraphSliceClient
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{
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/// <summary>
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/// Slices by CVE to get reachability paths.
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/// </summary>
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Task<CveSliceResult?> SliceByCveAsync(
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string digest,
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string cveId,
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string tenantId,
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int maxPaths = 5,
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CancellationToken ct = default);
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/// <summary>
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/// Slices by entry point pattern.
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/// </summary>
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Task<SliceResult?> SliceByEntrypointAsync(
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string digest,
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string entrypointPattern,
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string tenantId,
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int maxDepth = 10,
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CancellationToken ct = default);
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}
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/// <summary>
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/// Result of a CVE slice query.
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/// </summary>
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public sealed record CveSliceResult
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{
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/// <summary>Sinks that are reachable.</summary>
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public required IReadOnlyList<string> Sinks { get; init; }
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/// <summary>Paths from entries to sinks.</summary>
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public required IReadOnlyList<CveSlicePath> Paths { get; init; }
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}
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/// <summary>
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/// A path in a CVE slice result.
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/// </summary>
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public sealed record CveSlicePath
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{
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/// <summary>Entry point function.</summary>
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public required string Entrypoint { get; init; }
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/// <summary>Sink function.</summary>
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public required string Sink { get; init; }
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/// <summary>Intermediate nodes.</summary>
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public required IReadOnlyList<string> Hops { get; init; }
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}
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/// <summary>
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/// Result of a slice query.
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/// </summary>
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public sealed record SliceResult
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{
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/// <summary>Nodes in the slice.</summary>
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public required IReadOnlyList<SliceNode> Nodes { get; init; }
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/// <summary>Edges in the slice.</summary>
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public required IReadOnlyList<SliceEdge> Edges { get; init; }
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}
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/// <summary>
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/// A node in a slice result.
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/// </summary>
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public sealed record SliceNode
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{
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/// <summary>Node ID.</summary>
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public required string Id { get; init; }
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/// <summary>Reference (function name, PURL, etc.).</summary>
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public required string Ref { get; init; }
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/// <summary>Node kind.</summary>
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public string Kind { get; init; } = "Function";
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}
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/// <summary>
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/// An edge in a slice result.
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/// </summary>
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public sealed record SliceEdge
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{
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/// <summary>Source node ID.</summary>
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public required string From { get; init; }
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/// <summary>Target node ID.</summary>
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public required string To { get; init; }
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}
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/// <summary>
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/// Null implementation of IReachGraphSliceClient for testing.
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/// </summary>
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public sealed class NullReachGraphSliceClient : IReachGraphSliceClient
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{
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/// <inheritdoc />
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public Task<CveSliceResult?> SliceByCveAsync(
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string digest,
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string cveId,
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string tenantId,
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int maxPaths = 5,
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CancellationToken ct = default)
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{
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return Task.FromResult<CveSliceResult?>(null);
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}
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/// <inheritdoc />
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public Task<SliceResult?> SliceByEntrypointAsync(
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string digest,
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string entrypointPattern,
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string tenantId,
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int maxDepth = 10,
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CancellationToken ct = default)
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{
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return Task.FromResult<SliceResult?>(null);
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}
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}
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