public void WriteHeadersFrame(HeadersList headers, bool isEndStream, bool isEndHeaders)
{
if (headers == null)
throw new ArgumentNullException("headers is null");
if (Closed)
return;
var frame = new HeadersFrame(_id, true)
{
IsEndHeaders = isEndHeaders,
IsEndStream = isEndStream,
Headers = headers,
};
_writeQueue.WriteFrame(frame);
if (frame.IsEndStream)
{
HalfClosedLocal = true;
}
else if (ReservedLocal)
{
HalfClosedRemote = true;
}
if (OnFrameSent != null)
{
OnFrameSent(this, new FrameSentEventArgs(frame));
}
}
private void HandleHeaders(HeadersFrame headersFrame, out Http2Stream stream)
{
Http2Logger.LogDebug("New headers with id = " + headersFrame.StreamId);
//spec 06:
//If a HEADERS frame
//is received whose stream identifier field is 0x0, the recipient MUST
//respond with a connection error (Section 5.4.1) of type
//PROTOCOL_ERROR [PROTOCOL_ERROR].
if (headersFrame.StreamId == 0)
{
throw new ProtocolError(ResetStatusCode.ProtocolError, "Incoming headers frame with id = 0");
}
var serializedHeaders = new byte[headersFrame.CompressedHeaders.Count];
Buffer.BlockCopy(headersFrame.CompressedHeaders.Array,
headersFrame.CompressedHeaders.Offset,
serializedHeaders, 0, serializedHeaders.Length);
var decompressedHeaders = _comprProc.Decompress(serializedHeaders);
var headers = new HeadersList(decompressedHeaders);
foreach (var header in headers)
{
Http2Logger.LogDebug("Stream {0} header: {1}={2}", headersFrame.StreamId, header.Key, header.Value);
}
headersFrame.Headers.AddRange(headers);
var sequence = _headersSequences.Find(seq => seq.StreamId == headersFrame.StreamId);
if (sequence == null)
{
sequence = new HeadersSequence(headersFrame.StreamId, headersFrame);
_headersSequences.Add(sequence);
}
else
{
sequence.AddHeaders(headersFrame);
}
if (headersFrame.HasPriority)
{
sequence.Priority = headersFrame.Priority;
}
if (!sequence.IsComplete)
{
stream = null;
return;
}
stream = GetStream(headersFrame.StreamId);
if (stream == null)
{
stream = CreateStream(sequence.Headers, headersFrame.StreamId, sequence.Priority);
}
else
{
stream.Headers.AddRange(sequence.Headers);
}
}
private void HandleHeaders(HeadersFrame headersFrame, out Http2Stream stream)
{
Http2Logger.LogDebug("HEADERS frame: stream id={0}, payload len={1}, has pad={2}, pad high={3}, pad low={4}, " +
"end stream={5}, has priority={6}, exclusive={7}, dependency={8}, weight={9}",
headersFrame.StreamId, headersFrame.PayloadLength,
headersFrame.HasPadding, headersFrame.PadHigh, headersFrame.PadLow, headersFrame.IsEndStream,
headersFrame.HasPriority, headersFrame.Exclusive, headersFrame.StreamDependency, headersFrame.Weight);
/* 12 -> 6.2
HEADERS frames MUST be associated with a stream. If a HEADERS frame
is received whose stream identifier field is 0x0, the recipient MUST
respond with a connection error of type PROTOCOL_ERROR. */
if (headersFrame.StreamId == 0)
throw new ProtocolError(ResetStatusCode.ProtocolError, "Incoming headers frame with stream id=0");
var serializedHeaders = new byte[headersFrame.CompressedHeaders.Count];
Buffer.BlockCopy(headersFrame.CompressedHeaders.Array,
headersFrame.CompressedHeaders.Offset,
serializedHeaders, 0, serializedHeaders.Length);
var decompressedHeaders = _comprProc.Decompress(serializedHeaders);
var headers = new HeadersList(decompressedHeaders);
foreach (var header in headers)
{
Http2Logger.LogDebug("{1}={2}", headersFrame.StreamId, header.Key, header.Value);
}
headersFrame.Headers.AddRange(headers);
var sequence = _headersSequences.Find(headersFrame.StreamId);
if (sequence == null)
{
sequence = new HeadersSequence(headersFrame.StreamId, headersFrame);
_headersSequences.Add(sequence);
}
else
{
sequence.AddHeaders(headersFrame);
}
if (headersFrame.HasPriority)
{
//TODO: Priority was deprecated, now we need to use Dependency and Weight
//sequence.Priority = headersFrame.Priority;
}
if (!sequence.IsComplete)
{
stream = null;
return;
}
stream = GetStream(headersFrame.StreamId);
if (stream.Idle)
{
stream = CreateStream(sequence);
ValidateHeaders(stream);
}
else if (stream.ReservedRemote)
{
stream = CreateStream(sequence);
stream.HalfClosedLocal = true;
ValidateHeaders(stream);
}
else if(stream.Opened || stream.HalfClosedLocal)
{
stream.Headers = sequence.Headers;//Modify by the last accepted frame
ValidateHeaders(stream);
}
else if (stream.HalfClosedRemote)
{
throw new ProtocolError(ResetStatusCode.ProtocolError, "headers for half closed remote stream");
}
else
{
throw new Http2StreamNotFoundException(headersFrame.StreamId);
}
}
public void WriteHeadersFrame(HeadersList headers, bool isEndStream, bool isEndHeaders)
{
if (headers == null)
throw new ArgumentNullException("headers is null");
if (Disposed)
return;
var frame = new HeadersFrame(_id, Priority)
{
IsEndHeaders = isEndHeaders,
IsEndStream = isEndStream,
Headers = headers,
};
_writeQueue.WriteFrame(frame);
if (frame.IsEndStream)
{
EndStreamSent = true;
}
if (OnFrameSent != null)
{
OnFrameSent(this, new FrameSentEventArgs(frame));
}
}
public void WriteHeadersFrame(HeadersList headers, bool isEndStream, bool isEndHeaders)
{
if (headers == null)
throw new ArgumentNullException("headers is null");
if (Disposed)
return;
Headers.AddRange(headers);
byte[] headerBytes = _compressionProc.Compress(headers);
var frame = new HeadersFrame(_id, headerBytes, Priority)
{
IsEndHeaders = isEndHeaders,
IsEndStream = isEndStream,
};
_writeQueue.WriteFrame(frame);
if (frame.IsEndStream)
{
EndStreamSent = true;
}
if (OnFrameSent != null)
{
OnFrameSent(this, new FrameSentArgs(frame));
}
}