public BodyRedirector(HttpContext context, Pipe requestPipe, Pipe responsePipe)
{
// gRPC middleware don't flush so we have to flush for them
// This means we need access to their pipe writer, so we switch the body pipe features as well to get raw access
// Although it seems like we could instead switch the body pipe properties on the request and the response
// as documented by https://docs.microsoft.com/en-us/aspnet/core/fundamentals/middleware/request-response?view=aspnetcore-3.0#adapters
// this ability was removed in https://github.com/aspnet/AspNetCore/pull/10154
_context = context;
_requestBody = _context.Request.Body;
_context.Request.Body = requestPipe.Reader.AsStream(true);
_requestBodyPipe = _context.Features.Get <IRequestBodyPipeFeature>();
_context.Features.Set <IRequestBodyPipeFeature>(
new RequestBodyPipeFeature {
Reader = requestPipe.Reader
});
_responseBody = _context.Features.Get <IHttpResponseBodyFeature>();
var responseBody = new ResponseBodyFeature(_responseBody)
{
Writer = responsePipe.Writer
};
_context.Features.Set <IHttpResponseBodyFeature>(responseBody);
}
public GrpcProxy(HttpContext context)
{
_context = context;
_originalProtocol = context.Request.Protocol;
_originalRequestBodyPipeFeature = context.Features.Get <IRequestBodyPipeFeature>() !;
_originalResponseBodyFeature = context.Features.Get <IHttpResponseBodyFeature>() !;
_originalResponseTrailersFeature = context.Features.Get <IHttpResponseTrailersFeature>();
_responseStream = new MemoryStream();
Trailers = new HeaderDictionary();
}
