public override async ValueTask ProcessAsync(HttpMessage message)
{
var pipelineRequest = message.Request;
var host = pipelineRequest.Uri.Host;
HttpMethod method = MapMethod(pipelineRequest.Method);
Connection connection = await connectionFactory.ConnectAsync(new DnsEndPoint(host, 80));
HttpConnection httpConnection = new Http1Connection(connection, HttpPrimitiveVersion.Version11);
await using (ValueHttpRequest request = (await httpConnection.CreateNewRequestAsync(HttpPrimitiveVersion.Version11, HttpVersionPolicy.RequestVersionExact)).Value) {
RequestContent pipelineContent = pipelineRequest.Content;
long contentLength = 0;
if (pipelineContent != null)
{
if (!pipelineContent.TryComputeLength(out contentLength))
{
throw new NotImplementedException();
}
}
request.ConfigureRequest(contentLength: contentLength, hasTrailingHeaders: false);
request.WriteRequest(method, pipelineRequest.Uri.ToUri());
var pipelineHeaders = pipelineRequest.Headers;
foreach (var header in pipelineHeaders)
{
request.WriteHeader(header.Name, header.Value);
}
checked {
if (contentLength != 0)
{
using var ms = new MemoryStream((int)contentLength); // TODO: can the buffer be disposed here?
await pipelineContent.WriteToAsync(ms, message.CancellationToken);
await request.WriteContentAsync(ms.GetBuffer().AsMemory(0, (int)ms.Length));
}
}
await request.CompleteRequestAsync();
var response = new NoAllocResponse();
message.Response = response;
await request.ReadToFinalResponseAsync();
response.SetStatus((int)request.StatusCode);
if (await request.ReadToHeadersAsync())
{
await request.ReadHeadersAsync(response, state : null);
}
if (await request.ReadToContentAsync())
{
var buffer = new byte[4096];
int readLen;
do
{
while ((readLen = await request.ReadContentAsync(buffer)) != 0)
{
if (readLen < 4096)
{
response.ContentStream = new MemoryStream(buffer, 0, readLen);
}
else
{
throw new NotImplementedException();
}
}
}while (await request.ReadToNextContentAsync());
}
if (await request.ReadToTrailingHeadersAsync())
{
await request.ReadHeadersAsync(response, state : null);
}
}
}