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);
}