private Status?ValidateHeaders(HttpResponseMessage httpResponse) { GrpcCallLog.ResponseHeadersReceived(Logger); // gRPC status can be returned in the header when there is no message (e.g. unimplemented status) // An explicitly specified status header has priority over other failing statuses if (GrpcProtocolHelpers.TryGetStatusCore(httpResponse.Headers, out var status)) { // Trailers are in the header because there is no message. // Note that some default headers will end up in the trailers (e.g. Date, Server). _trailers = GrpcProtocolHelpers.BuildMetadata(httpResponse.Headers); return(status); } if (httpResponse.StatusCode != HttpStatusCode.OK) { var statusCode = MapHttpStatusToGrpcCode(httpResponse.StatusCode); return(new Status(statusCode, "Bad gRPC response. HTTP status code: " + (int)httpResponse.StatusCode)); } if (httpResponse.Content?.Headers.ContentType == null) { return(new Status(StatusCode.Cancelled, "Bad gRPC response. Response did not have a content-type header.")); } var grpcEncoding = httpResponse.Content.Headers.ContentType; if (!GrpcProtocolHelpers.IsGrpcContentType(grpcEncoding)) { return(new Status(StatusCode.Cancelled, "Bad gRPC response. Invalid content-type value: " + grpcEncoding)); } // Call is still in progress return(null); }
private Status?ValidateHeaders(HttpResponseMessage httpResponse) { Log.ResponseHeadersReceived(Logger); if (httpResponse.StatusCode != HttpStatusCode.OK) { return(new Status(StatusCode.Cancelled, "Bad gRPC response. Expected HTTP status code 200. Got status code: " + (int)httpResponse.StatusCode)); } if (httpResponse.Content?.Headers.ContentType == null) { return(new Status(StatusCode.Cancelled, "Bad gRPC response. Response did not have a content-type header.")); } var grpcEncoding = httpResponse.Content.Headers.ContentType; if (!GrpcProtocolHelpers.IsGrpcContentType(grpcEncoding)) { return(new Status(StatusCode.Cancelled, "Bad gRPC response. Invalid content-type value: " + grpcEncoding)); } else { // gRPC status can be returned in the header when there is no message (e.g. unimplemented status) if (GrpcProtocolHelpers.TryGetStatusCore(httpResponse.Headers, out var status)) { return(status); } } // Call is still in progress return(null); }
internal static Status?ValidateHeaders(HttpResponseMessage httpResponse, out Metadata?trailers) { // gRPC status can be returned in the header when there is no message (e.g. unimplemented status) // An explicitly specified status header has priority over other failing statuses if (GrpcProtocolHelpers.TryGetStatusCore(httpResponse.Headers, out var status)) { // Trailers are in the header because there is no message. // Note that some default headers will end up in the trailers (e.g. Date, Server). trailers = GrpcProtocolHelpers.BuildMetadata(httpResponse.Headers); return(status); } trailers = null; // ALPN negotiation is sending HTTP/1.1 and HTTP/2. // Check that the response wasn't downgraded to HTTP/1.1. if (httpResponse.Version < GrpcProtocolConstants.Http2Version) { return(new Status(StatusCode.Internal, $"Bad gRPC response. Response protocol downgraded to HTTP/{httpResponse.Version.ToString(2)}.")); } if (httpResponse.StatusCode != HttpStatusCode.OK) { var statusCode = MapHttpStatusToGrpcCode(httpResponse.StatusCode); return(new Status(statusCode, "Bad gRPC response. HTTP status code: " + (int)httpResponse.StatusCode)); } // Don't access Headers.ContentType property because it is not threadsafe. var contentType = GrpcProtocolHelpers.GetHeaderValue(httpResponse.Content?.Headers, "Content-Type"); if (contentType == null) { return(new Status(StatusCode.Cancelled, "Bad gRPC response. Response did not have a content-type header.")); } if (!CommonGrpcProtocolHelpers.IsContentType(GrpcProtocolConstants.GrpcContentType, contentType)) { return(new Status(StatusCode.Cancelled, "Bad gRPC response. Invalid content-type value: " + contentType)); } // Call is still in progress return(null); }
private Status?ValidateHeaders(HttpResponseMessage httpResponse) { GrpcCallLog.ResponseHeadersReceived(Logger); // gRPC status can be returned in the header when there is no message (e.g. unimplemented status) // An explicitly specified status header has priority over other failing statuses if (GrpcProtocolHelpers.TryGetStatusCore(httpResponse.Headers, out var status)) { // Trailers are in the header because there is no message. // Note that some default headers will end up in the trailers (e.g. Date, Server). _trailers = GrpcProtocolHelpers.BuildMetadata(httpResponse.Headers); return(status); } // ALPN negotiation is sending HTTP/1.1 and HTTP/2. // Check that the response wasn't downgraded to HTTP/1.1. if (httpResponse.Version < HttpVersion.Version20) { return(new Status(StatusCode.Internal, $"Bad gRPC response. Response protocol downgraded to HTTP/{httpResponse.Version.ToString(2)}.")); } if (httpResponse.StatusCode != HttpStatusCode.OK) { var statusCode = MapHttpStatusToGrpcCode(httpResponse.StatusCode); return(new Status(statusCode, "Bad gRPC response. HTTP status code: " + (int)httpResponse.StatusCode)); } if (httpResponse.Content?.Headers.ContentType == null) { return(new Status(StatusCode.Cancelled, "Bad gRPC response. Response did not have a content-type header.")); } var grpcEncoding = httpResponse.Content.Headers.ContentType; if (!CommonGrpcProtocolHelpers.IsContentType(GrpcProtocolConstants.GrpcContentType, grpcEncoding?.MediaType)) { return(new Status(StatusCode.Cancelled, "Bad gRPC response. Invalid content-type value: " + grpcEncoding)); } // Call is still in progress return(null); }