protected Task SendEmptyContinuationFrameAsync(int streamId, Http2ContinuationFrameFlags flags)
{
var frame = new Http2Frame(Http2Limits.MinAllowedMaxFrameSize);
frame.PrepareContinuation(flags, streamId);
frame.PayloadLength = 0;
return(SendAsync(frame.Raw));
}
protected Task SendEmptyContinuationFrameAsync(int streamId, Http2ContinuationFrameFlags flags)
{
var frame = new Http2Frame();
frame.PrepareContinuation(flags, streamId);
frame.Length = 0;
return(SendAsync(frame.Raw));
}
protected async Task SendContinuationAsync(int streamId, Http2ContinuationFrameFlags flags, byte[] payload)
{
var frame = new Http2Frame(Http2Limits.MinAllowedMaxFrameSize);
frame.PrepareContinuation(flags, streamId);
frame.PayloadLength = payload.Length;
payload.CopyTo(frame.Payload);
await SendAsync(frame.Raw);
}
internal Task SendEmptyContinuationFrameAsync(int streamId, Http2ContinuationFrameFlags flags)
{
var outputWriter = _pair.Application.Output;
var frame = new Http2Frame();
frame.PrepareContinuation(flags, streamId);
frame.PayloadLength = 0;
WriteHeader(frame, outputWriter);
return(FlushAsync(outputWriter));
}
internal async Task SendContinuationAsync(int streamId, Http2ContinuationFrameFlags flags, byte[] payload)
{
var outputWriter = _pair.Application.Output;
var frame = new Http2Frame();
frame.PrepareContinuation(flags, streamId);
frame.PayloadLength = payload.Length;
WriteHeader(frame, outputWriter);
await SendAsync(payload);
}
protected async Task <bool> SendContinuationAsync(int streamId, Http2ContinuationFrameFlags flags)
{
var frame = new Http2Frame(Http2Limits.MinAllowedMaxFrameSize);
frame.PrepareContinuation(flags, streamId);
var done = _hpackEncoder.Encode(frame.Payload, out var length);
frame.PayloadLength = length;
await SendAsync(frame.Raw);
return(done);
}
protected Task SendIncompleteContinuationFrameAsync(int streamId)
{
var frame = new Http2Frame(Http2Limits.MinAllowedMaxFrameSize);
frame.PrepareContinuation(Http2ContinuationFrameFlags.END_HEADERS, streamId);
frame.PayloadLength = 3;
// Set up an incomplete Literal Header Field w/ Incremental Indexing frame,
// with an incomplete new name
frame.Payload[0] = 0;
frame.Payload[1] = 2;
frame.Payload[2] = (byte)'a';
return(SendAsync(frame.Raw));
}
internal async Task <bool> SendContinuationAsync(int streamId, Http2ContinuationFrameFlags flags, IEnumerable <KeyValuePair <string, string> > headers)
{
var outputWriter = _pair.Application.Output;
var frame = new Http2Frame();
frame.PrepareContinuation(flags, streamId);
var buffer = _headerEncodingBuffer.AsMemory();
var done = _hpackEncoder.BeginEncode(headers, buffer.Span, out var length);
frame.PayloadLength = length;
WriteHeader(frame, outputWriter);
await SendAsync(buffer.Span.Slice(0, length));
return(done);
}
protected async Task <bool> SendContinuationAsync(int streamId, Http2ContinuationFrameFlags flags)
{
var outputWriter = _pair.Application.Output;
var frame = new Http2Frame();
frame.PrepareContinuation(flags, streamId);
var buffer = _headerEncodingBuffer.AsMemory();
var done = _hpackEncoder.Encode(buffer.Span, out var length);
frame.PayloadLength = length;
Http2FrameWriter.WriteHeader(frame, outputWriter);
await SendAsync(buffer.Span.Slice(0, length));
return(done);
}
protected Task StartStreamAsync(int streamId, IEnumerable <KeyValuePair <string, string> > headers, bool endStream)
{
var writableBuffer = _pair.Application.Output;
var tcs = new TaskCompletionSource <object>(TaskCreationOptions.RunContinuationsAsynchronously);
_runningStreams[streamId] = tcs;
var frame = new Http2Frame();
frame.PrepareHeaders(Http2HeadersFrameFlags.NONE, streamId);
var buffer = _headerEncodingBuffer.AsSpan();
var done = _hpackEncoder.BeginEncode(headers, buffer, out var length);
frame.PayloadLength = length;
if (done)
{
frame.HeadersFlags = Http2HeadersFrameFlags.END_HEADERS;
}
if (endStream)
{
frame.HeadersFlags |= Http2HeadersFrameFlags.END_STREAM;
}
Http2FrameWriter.WriteHeader(frame, writableBuffer);
writableBuffer.Write(buffer.Slice(0, length));
while (!done)
{
frame.PrepareContinuation(Http2ContinuationFrameFlags.NONE, streamId);
done = _hpackEncoder.Encode(buffer, out length);
frame.PayloadLength = length;
if (done)
{
frame.ContinuationFlags = Http2ContinuationFrameFlags.END_HEADERS;
}
Http2FrameWriter.WriteHeader(frame, writableBuffer);
writableBuffer.Write(buffer.Slice(0, length));
}
return(FlushAsync(writableBuffer));
}
public Task StartStreamAsync(int streamId, IEnumerable <KeyValuePair <string, string> > headers, bool endStream)
{
var writableBuffer = _pair.Application.Output;
var frame = new Http2Frame();
frame.PrepareHeaders(Http2HeadersFrameFlags.NONE, streamId);
var buffer = _headerEncodingBuffer.AsSpan();
var headersEnumerator = GetHeadersEnumerator(headers);
var done = HPackHeaderWriter.BeginEncodeHeaders(headersEnumerator, buffer, out var length);
frame.PayloadLength = length;
if (done)
{
frame.HeadersFlags = Http2HeadersFrameFlags.END_HEADERS;
}
if (endStream)
{
frame.HeadersFlags |= Http2HeadersFrameFlags.END_STREAM;
}
WriteHeader(frame, writableBuffer);
writableBuffer.Write(buffer.Slice(0, length));
while (!done)
{
frame.PrepareContinuation(Http2ContinuationFrameFlags.NONE, streamId);
done = HPackHeaderWriter.ContinueEncodeHeaders(headersEnumerator, buffer, out length);
frame.PayloadLength = length;
if (done)
{
frame.ContinuationFlags = Http2ContinuationFrameFlags.END_HEADERS;
}
WriteHeader(frame, writableBuffer);
writableBuffer.Write(buffer.Slice(0, length));
}
return(FlushAsync(writableBuffer));
}
public async Task SendIncompleteContinuationFrameAsync(int streamId)
{
var outputWriter = _pair.Application.Output;
var frame = new Http2Frame();
frame.PrepareContinuation(Http2ContinuationFrameFlags.END_HEADERS, streamId);
frame.PayloadLength = 3;
var payload = new byte[3];
// Set up an incomplete Literal Header Field w/ Incremental Indexing frame,
// with an incomplete new name
payload[0] = 0;
payload[1] = 2;
payload[2] = (byte)'a';
WriteHeader(frame, outputWriter);
await SendAsync(payload);
}
public static void WriteStartStream(this PipeWriter writer, int streamId, Http2HeadersEnumerator headers, HPackEncoder hpackEncoder, byte[] headerEncodingBuffer, bool endStream)
{
var frame = new Http2Frame();
frame.PrepareHeaders(Http2HeadersFrameFlags.NONE, streamId);
var buffer = headerEncodingBuffer.AsSpan();
var done = hpackEncoder.BeginEncode(headers, buffer, out var length);
frame.PayloadLength = length;
if (done)
{
frame.HeadersFlags = Http2HeadersFrameFlags.END_HEADERS;
}
if (endStream)
{
frame.HeadersFlags |= Http2HeadersFrameFlags.END_STREAM;
}
Http2FrameWriter.WriteHeader(frame, writer);
writer.Write(buffer.Slice(0, length));
while (!done)
{
frame.PrepareContinuation(Http2ContinuationFrameFlags.NONE, streamId);
done = hpackEncoder.Encode(buffer, out length);
frame.PayloadLength = length;
if (done)
{
frame.ContinuationFlags = Http2ContinuationFrameFlags.END_HEADERS;
}
Http2FrameWriter.WriteHeader(frame, writer);
writer.Write(buffer.Slice(0, length));
}
}
protected async Task StartStreamAsync(int streamId, IEnumerable <KeyValuePair <string, string> > headers, bool endStream)
{
var tcs = new TaskCompletionSource <object>(TaskCreationOptions.RunContinuationsAsynchronously);
_runningStreams[streamId] = tcs;
var frame = new Http2Frame(Http2Limits.MinAllowedMaxFrameSize);
frame.PrepareHeaders(Http2HeadersFrameFlags.NONE, streamId);
var done = _hpackEncoder.BeginEncode(headers, frame.HeadersPayload, out var length);
frame.PayloadLength = length;
if (done)
{
frame.HeadersFlags = Http2HeadersFrameFlags.END_HEADERS;
}
if (endStream)
{
frame.HeadersFlags |= Http2HeadersFrameFlags.END_STREAM;
}
await SendAsync(frame.Raw);
while (!done)
{
frame.PrepareContinuation(Http2ContinuationFrameFlags.NONE, streamId);
done = _hpackEncoder.Encode(frame.HeadersPayload, out length);
frame.PayloadLength = length;
if (done)
{
frame.ContinuationFlags = Http2ContinuationFrameFlags.END_HEADERS;
}
await SendAsync(frame.Raw);
}
}
