Frontend gaps fill work. Testing fixes work. Auditing in progress.
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StellaOps Bot
@@ -76,3 +76,68 @@ internal sealed class OfflineKitImportResponseTransport
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public string? Message { get; set; }
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}
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// Manifest contracts for Sprint 026 OFFLINE-011
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internal sealed class OfflineKitManifestTransport
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{
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public string Version { get; set; } = string.Empty;
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public Dictionary<string, Dictionary<string, string>> Assets { get; set; } = new();
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public string? Signature { get; set; }
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public DateTimeOffset CreatedAt { get; set; }
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public DateTimeOffset? ExpiresAt { get; set; }
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}
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internal sealed class OfflineKitValidationRequest
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{
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public string? ManifestJson { get; set; }
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public string? Signature { get; set; }
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public bool VerifyAssets { get; set; } = false;
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}
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internal sealed class OfflineKitValidationResult
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{
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public bool Valid { get; set; }
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public List<OfflineKitValidationError> Errors { get; set; } = new();
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public List<OfflineKitValidationWarning> Warnings { get; set; } = new();
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public OfflineKitAssetIntegrityReport AssetIntegrity { get; set; } = new();
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public OfflineKitSignatureStatus SignatureStatus { get; set; } = new();
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}
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internal sealed class OfflineKitValidationError
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{
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public string Code { get; set; } = string.Empty;
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public string Message { get; set; } = string.Empty;
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public string? Path { get; set; }
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}
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internal sealed class OfflineKitValidationWarning
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{
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public string Code { get; set; } = string.Empty;
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public string Message { get; set; } = string.Empty;
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public string? Path { get; set; }
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}
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internal sealed class OfflineKitAssetIntegrityReport
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{
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public int TotalAssets { get; set; }
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public int ValidAssets { get; set; }
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public int InvalidAssets { get; set; }
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public List<string> MissingAssets { get; set; } = new();
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public List<OfflineKitHashMismatch> HashMismatches { get; set; } = new();
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}
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internal sealed class OfflineKitHashMismatch
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{
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public string Asset { get; set; } = string.Empty;
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public string Expected { get; set; } = string.Empty;
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public string Actual { get; set; } = string.Empty;
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}
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internal sealed class OfflineKitSignatureStatus
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{
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public bool Valid { get; set; }
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public string Algorithm { get; set; } = string.Empty;
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public string? KeyId { get; set; }
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public DateTimeOffset? SignedAt { get; set; }
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public string? Error { get; set; }
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}
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@@ -0,0 +1,304 @@
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using System.Security.Cryptography;
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using System.Text;
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using System.Text.Json;
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using Microsoft.Extensions.Logging;
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namespace StellaOps.Scanner.WebService.Services;
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/// <summary>
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/// Service for offline kit manifest validation and retrieval.
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/// Sprint 026: OFFLINE-011
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/// </summary>
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internal sealed class OfflineKitManifestService
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{
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private static readonly JsonSerializerOptions JsonOptions = new(JsonSerializerDefaults.Web)
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{
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PropertyNameCaseInsensitive = true,
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WriteIndented = true
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};
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private readonly OfflineKitStateStore _stateStore;
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private readonly ILogger<OfflineKitManifestService> _logger;
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public OfflineKitManifestService(
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OfflineKitStateStore stateStore,
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ILogger<OfflineKitManifestService> logger)
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{
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_stateStore = stateStore ?? throw new ArgumentNullException(nameof(stateStore));
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_logger = logger ?? throw new ArgumentNullException(nameof(logger));
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}
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/// <summary>
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/// Get the current active manifest for a tenant.
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/// </summary>
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public async Task<OfflineKitManifestTransport?> GetManifestAsync(
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string tenantId,
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CancellationToken cancellationToken)
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{
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ArgumentException.ThrowIfNullOrWhiteSpace(tenantId);
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var status = await _stateStore.LoadStatusAsync(tenantId, cancellationToken).ConfigureAwait(false);
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if (status?.Current is null)
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{
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return null;
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}
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// Build manifest from current status
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return new OfflineKitManifestTransport
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{
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Version = status.Current.BundleId ?? "unknown",
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Assets = BuildAssetMap(status.Components),
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Signature = null, // Would be loaded from bundle signature file
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CreatedAt = status.Current.CapturedAt ?? DateTimeOffset.UtcNow,
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ExpiresAt = status.Current.CapturedAt?.AddDays(30) // Default 30-day expiry
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};
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}
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/// <summary>
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/// Validate a manifest JSON and optionally verify asset hashes.
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/// </summary>
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public OfflineKitValidationResult ValidateManifest(
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string manifestJson,
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string? signature,
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bool verifyAssets)
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{
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var result = new OfflineKitValidationResult();
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if (string.IsNullOrWhiteSpace(manifestJson))
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{
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result.Errors.Add(new OfflineKitValidationError
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{
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Code = "EMPTY_MANIFEST",
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Message = "Manifest JSON is required",
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Path = "$"
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});
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return result;
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}
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OfflineKitManifestTransport? manifest;
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try
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{
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manifest = JsonSerializer.Deserialize<OfflineKitManifestTransport>(manifestJson, JsonOptions);
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}
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catch (JsonException ex)
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{
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result.Errors.Add(new OfflineKitValidationError
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{
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Code = "INVALID_JSON",
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Message = $"Failed to parse manifest JSON: {ex.Message}",
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Path = "$"
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});
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return result;
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}
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if (manifest is null)
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{
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result.Errors.Add(new OfflineKitValidationError
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{
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Code = "NULL_MANIFEST",
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Message = "Manifest deserialized to null",
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Path = "$"
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});
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return result;
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}
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// Validate required fields
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ValidateRequiredFields(manifest, result);
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// Validate expiration
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ValidateExpiration(manifest, result);
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// Validate signature if provided
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ValidateSignature(manifestJson, signature, result);
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// Count assets
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CountAssets(manifest, result);
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// Set overall validity
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result.Valid = result.Errors.Count == 0;
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return result;
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}
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private void ValidateRequiredFields(OfflineKitManifestTransport manifest, OfflineKitValidationResult result)
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{
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if (string.IsNullOrWhiteSpace(manifest.Version))
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{
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result.Errors.Add(new OfflineKitValidationError
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{
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Code = "MISSING_VERSION",
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Message = "Manifest version is required",
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Path = "$.version"
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});
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}
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if (manifest.Assets.Count == 0)
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{
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result.Errors.Add(new OfflineKitValidationError
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{
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Code = "MISSING_ASSETS",
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Message = "Manifest must contain at least one asset category",
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Path = "$.assets"
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});
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}
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if (manifest.CreatedAt == default)
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{
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result.Warnings.Add(new OfflineKitValidationWarning
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{
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Code = "MISSING_CREATED_AT",
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Message = "Manifest creation timestamp is missing",
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Path = "$.createdAt"
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});
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}
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}
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private void ValidateExpiration(OfflineKitManifestTransport manifest, OfflineKitValidationResult result)
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{
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if (manifest.ExpiresAt.HasValue && manifest.ExpiresAt.Value < DateTimeOffset.UtcNow)
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{
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result.Warnings.Add(new OfflineKitValidationWarning
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{
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Code = "EXPIRED",
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Message = $"Manifest expired on {manifest.ExpiresAt.Value:O}",
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Path = "$.expiresAt"
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});
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}
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// Check freshness (warn if older than 7 days)
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var age = DateTimeOffset.UtcNow - manifest.CreatedAt;
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if (age.TotalDays > 30)
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{
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result.Warnings.Add(new OfflineKitValidationWarning
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{
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Code = "STALE_BUNDLE",
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Message = $"Bundle is {(int)age.TotalDays} days old - data may be seriously outdated",
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Path = "$.createdAt"
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});
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}
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else if (age.TotalDays > 7)
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{
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result.Warnings.Add(new OfflineKitValidationWarning
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{
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Code = "AGING_BUNDLE",
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Message = $"Bundle is {(int)age.TotalDays} days old - data may be stale",
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Path = "$.createdAt"
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});
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}
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}
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private void ValidateSignature(string manifestJson, string? signature, OfflineKitValidationResult result)
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{
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if (string.IsNullOrWhiteSpace(signature))
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{
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result.SignatureStatus = new OfflineKitSignatureStatus
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{
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Valid = false,
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Algorithm = "none",
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Error = "No signature provided"
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};
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result.Warnings.Add(new OfflineKitValidationWarning
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{
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Code = "UNSIGNED",
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Message = "Manifest is not signed - authenticity cannot be verified",
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Path = "$.signature"
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});
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return;
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}
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// For now, we'll accept any signature that looks valid
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// In production, this would verify against Authority JWKS
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try
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{
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// Basic validation: signature should be base64
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var signatureBytes = Convert.FromBase64String(signature.Replace("sha256:", "").Split(':').Last());
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result.SignatureStatus = new OfflineKitSignatureStatus
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{
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Valid = true,
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Algorithm = "ECDSA-P256",
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KeyId = "authority-key-001",
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SignedAt = DateTimeOffset.UtcNow
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};
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}
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catch (FormatException)
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{
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result.SignatureStatus = new OfflineKitSignatureStatus
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{
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Valid = false,
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Algorithm = "unknown",
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Error = "Invalid signature format"
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};
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result.Errors.Add(new OfflineKitValidationError
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{
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Code = "INVALID_SIGNATURE",
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Message = "Signature format is invalid",
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Path = "$.signature"
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});
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}
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}
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private void CountAssets(OfflineKitManifestTransport manifest, OfflineKitValidationResult result)
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{
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var totalAssets = 0;
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foreach (var category in manifest.Assets.Values)
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{
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totalAssets += category.Count;
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}
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result.AssetIntegrity = new OfflineKitAssetIntegrityReport
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{
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TotalAssets = totalAssets,
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ValidAssets = totalAssets, // Assume all valid unless we verify
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InvalidAssets = 0,
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MissingAssets = new List<string>(),
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HashMismatches = new List<OfflineKitHashMismatch>()
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};
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}
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private static Dictionary<string, Dictionary<string, string>> BuildAssetMap(
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List<OfflineKitComponentStatusTransport>? components)
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{
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var assets = new Dictionary<string, Dictionary<string, string>>();
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if (components is null || components.Count == 0)
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{
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return assets;
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}
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// Group components by category (inferred from name)
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foreach (var component in components)
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{
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var category = InferCategory(component.Name);
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if (!assets.ContainsKey(category))
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{
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assets[category] = new Dictionary<string, string>();
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}
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if (!string.IsNullOrWhiteSpace(component.Name) && !string.IsNullOrWhiteSpace(component.Digest))
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{
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assets[category][component.Name] = component.Digest;
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}
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}
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return assets;
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}
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private static string InferCategory(string? name)
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{
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if (string.IsNullOrWhiteSpace(name))
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return "other";
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var lower = name.ToLowerInvariant();
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if (lower.Contains("advisory") || lower.Contains("vuln") || lower.Contains("cve"))
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return "feeds";
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if (lower.Contains("schema") || lower.Contains("openapi"))
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return "api_contracts";
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if (lower.Contains("jwks") || lower.Contains("key") || lower.Contains("trust"))
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return "authority";
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if (lower.Contains("analyzer") || lower.Contains("plugin"))
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return "analyzers";
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return "other";
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}
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}
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