/// <summary> /// Downloads the manifest for an OCI artifact. /// </summary> /// <param name="options">Options for the download operation.</param> /// <param name="cancellationToken">The cancellation token to use.</param> /// <returns>The download manifest result.</returns> public virtual async Task <Response <DownloadManifestResult> > DownloadManifestAsync(DownloadManifestOptions options, CancellationToken cancellationToken = default) { Argument.AssertNotNull(options, nameof(options)); using DiagnosticScope scope = _clientDiagnostics.CreateScope($"{nameof(ContainerRegistryBlobClient)}.{nameof(DownloadManifest)}"); scope.Start(); try { Response <ManifestWrapper> response = await _restClient.GetManifestAsync(_repositoryName, options.Tag ?? options.Digest, ManifestMediaType.OciManifest.ToString(), cancellationToken).ConfigureAwait(false); Response rawResponse = response.GetRawResponse(); rawResponse.Headers.TryGetValue("Docker-Content-Digest", out var digest); if (!ValidateDigest(rawResponse.ContentStream, digest)) { throw _clientDiagnostics.CreateRequestFailedException(rawResponse, new ResponseError(null, "The requested digest does not match the digest of the received manifest.")); } using var document = JsonDocument.Parse(rawResponse.ContentStream); var manifest = OciManifest.DeserializeOciManifest(document.RootElement); rawResponse.ContentStream.Position = 0; return(Response.FromValue(new DownloadManifestResult(digest, manifest, rawResponse.ContentStream), rawResponse)); } catch (Exception e) { scope.Failed(e); throw; } }
private static OciManifest DeserializeManifest(Stream stream) { using var document = JsonDocument.Parse(stream); return(OciManifest.DeserializeOciManifest(document.RootElement)); }