private void HandleContinuation(ContinuationFrame contFrame, out Http2Stream stream)
{
if (!(_lastFrame is ContinuationFrame || _lastFrame is HeadersFrame))
throw new ProtocolError(ResetStatusCode.ProtocolError,
"Last frame was not headers or continuation");
Http2Logger.LogDebug("New continuation with id = " + contFrame.StreamId);
if (contFrame.StreamId == 0)
{
throw new ProtocolError(ResetStatusCode.ProtocolError,
"Incoming continuation frame with id = 0");
}
var serHeaders = new byte[contFrame.CompressedHeaders.Count];
Buffer.BlockCopy(contFrame.CompressedHeaders.Array,
contFrame.CompressedHeaders.Offset,
serHeaders, 0, serHeaders.Length);
var decomprHeaders = _comprProc.Decompress(serHeaders);
var contHeaders = new HeadersList(decomprHeaders);
foreach (var header in contHeaders)
{
Http2Logger.LogDebug("Stream {0} header: {1}={2}", contFrame.StreamId, header.Key, header.Value);
}
contFrame.Headers.AddRange(contHeaders);
var sequence = _headersSequences.Find(seq => seq.StreamId == contFrame.StreamId);
if (sequence == null)
{
sequence = new HeadersSequence(contFrame.StreamId, contFrame);
_headersSequences.Add(sequence);
}
else
{
sequence.AddHeaders(contFrame);
}
if (!sequence.IsComplete)
{
stream = null;
return;
}
stream = GetStream(contFrame.StreamId);
if (stream == null)
{
stream = CreateStream(sequence.Headers, contFrame.StreamId, sequence.Priority);
}
else
{
stream.Headers.AddRange(sequence.Headers);
}
}
private void HandleContinuation(ContinuationFrame contFrame, out Http2Stream stream)
{
if (!(_lastFrame is ContinuationFrame || _lastFrame is HeadersFrame))
throw new ProtocolError(ResetStatusCode.ProtocolError,
"Last frame was not headers or continuation");
Http2Logger.LogDebug("New continuation with id = " + contFrame.StreamId);
//09 -> 6.10. CONTINUATION
//CONTINUATION frames MUST be associated with a stream. If a
//CONTINUATION 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.
if (contFrame.StreamId == 0)
{
throw new ProtocolError(ResetStatusCode.ProtocolError,
"Incoming continuation frame with id = 0");
}
var serHeaders = new byte[contFrame.CompressedHeaders.Count];
Buffer.BlockCopy(contFrame.CompressedHeaders.Array,
contFrame.CompressedHeaders.Offset,
serHeaders, 0, serHeaders.Length);
var decomprHeaders = _comprProc.Decompress(serHeaders);
var contHeaders = new HeadersList(decomprHeaders);
foreach (var header in contHeaders)
{
Http2Logger.LogDebug("Stream {0} header: {1}={2}", contFrame.StreamId, header.Key, header.Value);
}
contFrame.Headers.AddRange(contHeaders);
var sequence = _headersSequences.Find(contFrame.StreamId);
if (sequence == null)
{
sequence = new HeadersSequence(contFrame.StreamId, contFrame);
_headersSequences.Add(sequence);
}
else
{
sequence.AddHeaders(contFrame);
}
if (!sequence.IsComplete)
{
stream = null;
return;
}
stream = GetStream(contFrame.StreamId);
if (stream == null)
{
stream = CreateStream(sequence);
ValidateHeaders(stream);
}
else
{
stream.Headers = sequence.Headers;
ValidateHeaders(stream);
}
}
private void HandleContinuation(ContinuationFrame contFrame, out Http2Stream stream)
{
Http2Logger.LogDebug("CONTINUATION frame: stream id={0}, payload len={1}, has pad={2}, pad high={3}," +
" pad low={4}, end headers={5}", contFrame.StreamId, contFrame.PayloadLength,
contFrame.HasPadding, contFrame.PadHigh, contFrame.PadLow, contFrame.IsEndHeaders);
if (!(_lastFrame is ContinuationFrame || _lastFrame is HeadersFrame))
throw new ProtocolError(ResetStatusCode.ProtocolError,
"Last frame was not headers or continuation");
/* 12 -> 6.10
CONTINUATION frames MUST be associated with a stream. If a CONTINUATION
frame is received whose stream identifier field is 0x0, the recipient MUST
respond with a connection error of type PROTOCOL_ERROR. */
if (contFrame.StreamId == 0)
throw new ProtocolError(ResetStatusCode.ProtocolError,
"Incoming continuation frame with stream id=0");
var serHeaders = new byte[contFrame.CompressedHeaders.Count];
Buffer.BlockCopy(contFrame.CompressedHeaders.Array,
contFrame.CompressedHeaders.Offset,
serHeaders, 0, serHeaders.Length);
var decomprHeaders = _comprProc.Decompress(serHeaders);
var contHeaders = new HeadersList(decomprHeaders);
foreach (var header in contHeaders)
{
Http2Logger.LogDebug("Stream {0} header: {1}={2}", contFrame.StreamId, header.Key, header.Value);
}
contFrame.Headers.AddRange(contHeaders);
var sequence = _headersSequences.Find(contFrame.StreamId);
if (sequence == null)
{
sequence = new HeadersSequence(contFrame.StreamId, contFrame);
_headersSequences.Add(sequence);
}
else
{
sequence.AddHeaders(contFrame);
}
if (!sequence.IsComplete)
{
stream = null;
return;
}
stream = GetStream(contFrame.StreamId);
if (stream.Idle || stream.ReservedRemote)
{
stream = CreateStream(sequence);
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, "continuation for half closed remote stream");
}
else
{
throw new Http2StreamNotFoundException(contFrame.StreamId);
}
}
