public async Task<Http2Stream> Get ()
{
await lockStreams.WaitAsync ().ConfigureAwait (false);
var stream = new Http2Stream (flowControlManager, GetNextIdentifier ());
streams.Add (stream.StreamIdentifer, stream);
lockStreams.Release ();
return stream;
}
private async Task ProcessHeadersFrame(FrameHeader frameHeader)
{
Debug.Assert(frameHeader.Type == FrameType.Headers);
bool endStream = frameHeader.EndStreamFlag;
int streamId = frameHeader.StreamId;
Http2Stream http2Stream = GetStream(streamId);
if (http2Stream == null)
{
_incomingBuffer.Discard(frameHeader.Length);
throw new Http2ProtocolException(Http2ProtocolErrorCode.StreamClosed);
}
// TODO: Figure out how to cache this delegate.
// Probably want to pass a state object to Decode.
HPackDecoder.HeaderCallback headerCallback = http2Stream.OnResponseHeader;
_hpackDecoder.Decode(GetFrameData(_incomingBuffer.ActiveSpan.Slice(0, frameHeader.Length), frameHeader.PaddedFlag, frameHeader.PriorityFlag), headerCallback);
_incomingBuffer.Discard(frameHeader.Length);
while (!frameHeader.EndHeadersFlag)
{
frameHeader = await ReadFrameAsync().ConfigureAwait(false);
if (frameHeader.Type != FrameType.Continuation ||
frameHeader.StreamId != streamId)
{
throw new Http2ProtocolException(Http2ProtocolErrorCode.ProtocolError);
}
_hpackDecoder.Decode(_incomingBuffer.ActiveSpan.Slice(0, frameHeader.Length), headerCallback);
_incomingBuffer.Discard(frameHeader.Length);
}
_hpackDecoder.CompleteDecode();
http2Stream.OnResponseHeadersComplete(endStream);
if (endStream)
{
RemoveStream(http2Stream);
}
}
public override ValueTask WriteAsync(ReadOnlyMemory <byte> buffer, CancellationToken cancellationToken)
{
Http2Stream http2Stream = _http2Stream;
if (http2Stream == null || !http2Stream._shouldSendRequestBody)
{
return(new ValueTask(Task.FromException(new ObjectDisposedException(nameof(Http2WriteStream)))));
}
// TODO: until #9071 is fixed
if (http2Stream._abortException is OperationCanceledException oce)
{
throw new OperationCanceledException(oce.Message, oce, oce.CancellationToken);
}
return(new ValueTask(http2Stream.SendDataAsync(buffer, cancellationToken)));
}
public async Task<Http2Stream> Get (uint streamIdentifier)
{
await lockStreams.WaitAsync ().ConfigureAwait (false);
Http2Stream stream = null;
if (!streams.ContainsKey (streamIdentifier)) {
stream = new Http2Stream (flowControlManager, streamIdentifier);
streams.Add (streamIdentifier, stream);
} else {
stream = streams [streamIdentifier];
}
lockStreams.Release ();
return stream;
}
private void AjdustWindowStatic(int bytesConsumed, Http2Stream stream)
{
_deliveredBytes += bytesConsumed;
if (_deliveredBytes < StreamWindowThreshold)
{
return;
}
int windowUpdateIncrement = _deliveredBytes;
_deliveredBytes = 0;
Http2Connection connection = stream.Connection;
Task sendWindowUpdateTask = connection.SendWindowUpdateAsync(stream.StreamId, windowUpdateIncrement);
connection.LogExceptions(sendWindowUpdateTask);
}
public void Http2StreamFeatureCollectionDoesNotIncludeMinRateFeatures()
{
var http2Stream = new Http2Stream(new Http2StreamContext
{
ServiceContext = new TestServiceContext(),
ConnectionFeatures = new FeatureCollection(),
TimeoutControl = Mock.Of <ITimeoutControl>(),
Transport = Mock.Of <IDuplexPipe>(),
ServerPeerSettings = new Http2PeerSettings(),
ClientPeerSettings = new Http2PeerSettings(),
});
var http2StreamCollection = (IFeatureCollection)http2Stream;
Assert.Null(http2StreamCollection.Get <IHttpMinRequestBodyDataRateFeature>());
Assert.Null(http2StreamCollection.Get <IHttpMinResponseDataRateFeature>());
Assert.NotNull(_collection.Get <IHttpMinRequestBodyDataRateFeature>());
Assert.NotNull(_collection.Get <IHttpMinResponseDataRateFeature>());
}
public override Task FlushAsync(CancellationToken cancellationToken)
{
if (cancellationToken.IsCancellationRequested)
{
return(Task.FromCanceled(cancellationToken));
}
Http2Stream http2Stream = _http2Stream;
if (http2Stream == null)
{
return(Task.CompletedTask);
}
// In order to flush this stream's previous writes, we need to flush the connection. We
// really only need to do any work here if the connection's buffer has any pending writes
// from this stream, but we currently lack a good/efficient/safe way of doing that.
return(http2Stream._connection.FlushAsync(cancellationToken));
}
public Http2OutputProducer(Http2Stream stream, Http2StreamContext context)
{
_stream = stream;
_frameWriter = context.FrameWriter;
_memoryPool = context.MemoryPool;
_log = context.ServiceContext.Log;
var scheduleInline = context.ServiceContext.Scheduler == PipeScheduler.Inline;
_pipe = CreateDataPipe(_memoryPool, scheduleInline);
_pipeWriter = new ConcurrentPipeWriter(_pipe.Writer, _memoryPool, _dataWriterLock);
_pipeReader = _pipe.Reader;
// No need to pass in timeoutControl here, since no minDataRates are passed to the TimingPipeFlusher.
// The minimum output data rate is enforced at the connection level by Http2FrameWriter.
_flusher = new TimingPipeFlusher(timeoutControl: null, _log);
_flusher.Initialize(_pipeWriter);
_streamWindow = context.ClientPeerSettings.InitialWindowSize;
}
public override ValueTask<int> ReadAsync(Memory<byte> destination, CancellationToken cancellationToken)
{
Http2Stream http2Stream = _http2Stream;
if (http2Stream == null)
{
return new ValueTask<int>(Task.FromException<int>(new ObjectDisposedException(nameof(Http2ReadStream))));
}
if (http2Stream._abortException != null)
{
return new ValueTask<int>(Task.FromException<int>(new IOException(SR.net_http_client_execution_error, http2Stream._abortException)));
}
if (cancellationToken.IsCancellationRequested)
{
return new ValueTask<int>(Task.FromCanceled<int>(cancellationToken));
}
return http2Stream.ReadDataAsync(destination, cancellationToken);
}
public async Task<Http2Stream> Get(uint streamIdentifier)
{
await lockStreams.WaitAsync().ConfigureAwait(false);
Http2Stream stream = null;
if (!streams.ContainsKey(streamIdentifier))
{
stream = new Http2Stream(flowControlManager, streamIdentifier);
streams.Add(streamIdentifier, stream);
}
else
{
stream = streams[streamIdentifier];
}
lockStreams.Release();
return stream;
}
public Http2OutputProducer(Http2Stream stream, Http2StreamContext context, StreamOutputFlowControl flowControl)
{
_stream = stream;
_frameWriter = context.FrameWriter;
_flowControl = flowControl;
_memoryPool = context.MemoryPool;
_log = context.ServiceContext.Log;
_pipe = CreateDataPipe(_memoryPool);
_pipeWriter = new ConcurrentPipeWriter(_pipe.Writer, _memoryPool, _dataWriterLock);
_pipeReader = _pipe.Reader;
// No need to pass in timeoutControl here, since no minDataRates are passed to the TimingPipeFlusher.
// The minimum output data rate is enforced at the connection level by Http2FrameWriter.
_flusher = new TimingPipeFlusher(timeoutControl: null, _log);
_flusher.Initialize(_pipeWriter);
_dataWriteProcessingTask = ProcessDataWrites();
}
private Http2Stream GetWithIdentifier(uint streamIdentifier, StreamGetCallback cb)
{
lockStreams.WaitOne();
Http2Stream stream = null;
if (!streams.ContainsKey(streamIdentifier))
{
stream = new Http2Stream(flowControlManager, streamIdentifier);
streams.Add(streamIdentifier, stream);
}
else
{
stream = streams[streamIdentifier];
}
lockStreams.Release();
cb?.Invoke(stream);
return(stream);
}
protected override void Dispose(bool disposing)
{
Http2Stream http2Stream = Interlocked.Exchange(ref _http2Stream, null);
if (http2Stream == null)
{
return;
}
if (disposing)
{
if (http2Stream._state != StreamState.Aborted && http2Stream._state != StreamState.Complete)
{
// If we abort response stream before endOfStream, let server know.
IgnoreExceptions(http2Stream._connection.SendRstStreamAsync(http2Stream._streamId, Http2ProtocolErrorCode.Cancel));
}
http2Stream.Dispose();
}
base.Dispose(disposing);
}
public HttpProtocolFeatureCollectionTests()
{
var context = new Http2StreamContext
{
ServiceContext = new TestServiceContext(),
ConnectionFeatures = new FeatureCollection(),
TimeoutControl = Mock.Of <ITimeoutControl>(),
Transport = Mock.Of <IDuplexPipe>(),
ServerPeerSettings = new Http2PeerSettings(),
ClientPeerSettings = new Http2PeerSettings(),
};
_httpConnectionContext = context;
_http1Connection = new TestHttp1Connection(context);
_http1Connection.Reset();
_collection = _http1Connection;
var http2Stream = new Http2Stream(context);
http2Stream.Reset();
_http2Collection = http2Stream;
}
public void AdjustWindow(int bytesConsumed, Http2Stream stream)
{
Debug.Assert(_lastWindowUpdate != default); // Make sure Start() has been invoked, otherwise we should not be receiving DATA.
Debug.Assert(bytesConsumed > 0);
Debug.Assert(_deliveredBytes < StreamWindowThreshold);
if (!stream.ExpectResponseData)
{
// We are not expecting any more data (because we've either completed or aborted).
// So no need to send any more WINDOW_UPDATEs.
return;
}
if (WindowScalingEnabled)
{
AdjustWindowDynamic(bytesConsumed, stream);
}
else
{
AjdustWindowStatic(bytesConsumed, stream);
}
}
private void SendDataTo(Http2Stream stream, byte[] binaryData)
{
int i = 0;
Http2Logger.LogDebug("Transfer begin");
do
{
bool isLastData = binaryData.Length - i < Constants.MaxDataFrameContentSize;
int chunkSize = stream.WindowSize > 0
? MathEx.Min(binaryData.Length - i, Constants.MaxDataFrameContentSize,
stream.WindowSize)
: MathEx.Min(binaryData.Length - i, Constants.MaxDataFrameContentSize);
var chunk = new byte[chunkSize];
Buffer.BlockCopy(binaryData, i, chunk, 0, chunk.Length);
stream.WriteDataFrame(chunk, isLastData);
i += chunkSize;
} while (binaryData.Length > i);
}
private void SaveDataFrame(Http2Stream stream, DataFrame dataFrame)
{
lock (_writeLock)
{
string path = stream.Headers.GetValue(":path".ToLower());
try
{
string pathToSave = AssemblyPath + Root + path;
if (!Directory.Exists(Path.GetDirectoryName(pathToSave)))
{
throw new DirectoryNotFoundException("Access denied");
}
_fileHelper.SaveToFile(dataFrame.Data.Array, dataFrame.Data.Offset, dataFrame.Data.Count,
pathToSave, stream.ReceivedDataAmount != 0);
}
catch (Exception ex)
{
Http2Logger.LogError(ex.Message);
stream.WriteDataFrame(new byte[0], true);
stream.Dispose();
}
stream.ReceivedDataAmount += dataFrame.FrameLength;
if (dataFrame.IsEndStream)
{
if (!stream.EndStreamSent)
{
//send terminator
stream.WriteDataFrame(new byte[0], true);
Http2Logger.LogDebug("Terminator was sent");
}
_fileHelper.RemoveStream(AssemblyPath + Root + path);
}
}
}
private async Task GetWaiterTask(CancellationToken cancellationToken)
{
var vt = new ValueTask(this, _waitSource.Version).AsTask();
using (cancellationToken.Register(s =>
{
Http2Stream stream = (Http2Stream)s;
bool signalWaiter;
lock (stream.SyncObject)
{
signalWaiter = stream._hasWaiter;
stream._hasWaiter = false;
}
if (signalWaiter)
{
stream._waitSource.SetException(new OperationCanceledException());
}
}, this))
{
await vt.ConfigureAwait(false);
}
CancellationHelper.ThrowIfCancellationRequested(cancellationToken);
}
public void ActiveStreamsSuccessful()
{
var handshakeResult = new Dictionary <string, object>();
var session = new Http2Session(null, ConnectionEnd.Client, true, true, handshakeResult);
var testCollection = session.ActiveStreams;
var fm = new FlowControlManager(session);
testCollection[1] = new Http2Stream(null, 1, null, fm, null);
testCollection[2] = new Http2Stream(null, 2, null, fm, null);
testCollection[3] = new Http2Stream(null, 3, null, fm, null);
testCollection[4] = new Http2Stream(null, 4, null, fm, null);
fm.DisableStreamFlowControl(testCollection[2]);
fm.DisableStreamFlowControl(testCollection[4]);
Assert.Equal(testCollection.NonFlowControlledStreams.Count, 2);
Assert.Equal(testCollection.FlowControlledStreams.Count, 2);
bool gotException = false;
try
{
testCollection[4] = new Http2Stream(null, 3, null, fm, null);
}
catch (ArgumentException)
{
gotException = true;
}
Assert.Equal(gotException, true);
testCollection.Remove(4);
Assert.Equal(testCollection.Count, 3);
Assert.Equal(testCollection.ContainsKey(4), false);
}
private void ProcessWindowUpdateFrame(FrameHeader frameHeader)
{
Debug.Assert(frameHeader.Type == FrameType.WindowUpdate);
if (frameHeader.Length != FrameHeader.WindowUpdateLength)
{
throw new Http2ProtocolException(Http2ProtocolErrorCode.FrameSizeError);
}
int amount = BinaryPrimitives.ReadInt32BigEndian(_incomingBuffer.ActiveSpan) & 0x7FFFFFFF;
Debug.Assert(amount >= 0);
if (amount == 0)
{
throw new Http2ProtocolException(Http2ProtocolErrorCode.ProtocolError);
}
_incomingBuffer.Discard(frameHeader.Length);
if (frameHeader.StreamId == 0)
{
_connectionWindow.AdjustCredit(amount);
}
else
{
Http2Stream http2Stream = GetStream(frameHeader.StreamId);
if (http2Stream == null)
{
// Don't wait for completion, which could happen asynchronously.
Task ignored = SendRstStreamAsync(frameHeader.StreamId, Http2ProtocolErrorCode.StreamClosed);
return;
}
http2Stream.OnWindowUpdate(amount);
}
}
/// <summary>
/// Builds the headers frame.
/// </summary>
/// <param name="stream">The stream.</param>
/// <param name="headers">The headers.</param>
/// <param name="final">if set to <c>true</c> than this frame is final for the stream.</param>
/// <returns>Headers frame.</returns>
public ControlFrame BuildHeadersFrame(Http2Stream stream, ProtocolHeaders headers, bool final)
{
ControlFrame frame = BuildControlFrame(FrameType.Headers, stream, headers);
frame.IsFinal = final;
return frame;
}
public Http2MessageBody(Http2Stream context)
: base(context)
{
_context = context;
ExtendedConnect = _context.IsExtendedConnectRequest;
}
/// <summary>
/// Initializes a new instance of the <see cref="RSTEventArgs"/> class.
/// </summary>
/// <param name="stream">The stream.</param>
/// <param name="reason">The reason for RST.</param>
public RSTEventArgs(Http2Stream stream, StatusCode reason)
: base(stream)
{
this.Reason = reason;
}
/// <summary>
/// Initializes a new instance of the <see cref="StreamErrorEventArgs"/> class.
/// </summary>
/// <param name="stream">The stream.</param>
/// <param name="exeption">The exeption.</param>
public StreamErrorEventArgs(Http2Stream stream, Exception exeption)
: base(stream)
{
this.Exeption = exeption;
}
public Http2MessageBody(Http2Stream context)
: base(context)
{
_context = context;
}
/// <summary>
/// Builds the data frame.
/// </summary>
/// <param name="stream">The stream.</param>
/// <param name="data">The data.</param>
/// <returns>Returns DataFrame.</returns>
public DataFrame BuildDataFrame(Http2Stream stream, ProtocolData data)
{
return(this.BuildDataFrame(stream, data, false));
}
/// <summary>
/// Initializes a new instance of the <see cref="StreamErrorEventArgs"/> class.
/// </summary>
/// <param name="stream">The stream.</param>
/// <param name="exeption">The exeption.</param>
public StreamErrorEventArgs(Http2Stream stream, Exception exeption)
: base(stream)
{
this.Exeption = exeption;
}
/// <summary>
/// Disables the stream flow control.
/// Flow control cant be enabled once disabled
/// </summary>
/// <param name="stream">The stream.</param>
public void DisableStreamFlowControl(Http2Stream stream)
{
if (stream == null)
throw new ArgumentNullException("stream is null");
_streamDictionary.DisableFlowControl(stream);
}
public void NewStreamOpenedHandler(Http2Stream stream)
{
_flowControlledSession.SessionWindowSize += StreamsInitialWindowSize;
}
/// <summary>
/// Initializes a new instance of the <see cref="StreamEventArgs"/> class.
/// </summary>
/// <param name="stream">The stream.</param>
public StreamEventArgs(Http2Stream stream)
{
this.Stream = stream;
}
public ResponseStream(Http2Stream stream, Action onFirstWrite)
{
_stream = stream;
_onFirstWrite = onFirstWrite;
}
/// <summary>
/// Initializes a new instance of the <see cref="StreamDataEventArgs"/> class.
/// </summary>
/// <param name="stream">The stream.</param>
/// <param name="data">The data.</param>
/// <param name="isFin">final flag.</param>
public StreamDataEventArgs(Http2Stream stream, ProtocolData data, bool isFin)
: base(stream)
{
this.Data = data;
this.IsFin = isFin;
}
/// <summary>
/// Ends the response in case of error.
/// </summary>
/// <param name="stream">The stream.</param>
/// <param name="ex">The caught exception.</param>
private void EndResponse(Http2Stream stream, Exception ex)
{
Http2Logger.LogDebug("Error processing request:\r\n" + ex);
// TODO: What if the response has already started?
WriteStatus(stream, StatusCode.Code500InternalServerError, true);
}
public RequestSentEventArgs(Http2Stream stream)
{
Stream = stream;
}
public FrameReceivedEventArgs(Http2Stream stream, Frame frame)
{
Stream = stream;
Frame = frame;
}
/// <summary>
/// Overrides request processing logic.
/// </summary>
/// <param name="stream">The stream.</param>
/// <param name="frame">The request header frame.</param>
/// <returns></returns>
protected override void ProcessRequest(Http2Stream stream, Frame frame)
{
/* 12 -> 8.1.3.1
* All HTTP/2 requests MUST include exactly one valid value for the
* ":method", ":scheme", and ":path" header fields, unless this is a
* CONNECT request (Section 8.3). An HTTP request that omits mandatory
* header fields is malformed (Section 8.1.3.5). */
if (stream.Headers.GetValue(CommonHeaders.Method) == null ||
stream.Headers.GetValue(CommonHeaders.Path) == null ||
stream.Headers.GetValue(CommonHeaders.Scheme) == null)
{
stream.WriteRst(ResetStatusCode.ProtocolError);
stream.Close(ResetStatusCode.ProtocolError);
return;
}
Task.Factory.StartNew(async() =>
{
try
{
var context = new Http2OwinMessageContext(stream);
var contextEnv = context.OwinContext.Environment;
PushFunc pushDelegate = null;
pushDelegate = async pairs =>
{
var promisedStream = CreateStream();
//assume that we have already received endStream
promisedStream.HalfClosedLocal = true;
stream.WritePushPromise(pairs, promisedStream.Id);
var headers = new HeadersList(pairs);
promisedStream.Headers.AddRange(headers);
var http2MsgCtx = new Http2OwinMessageContext(promisedStream);
var http2PushCtx = http2MsgCtx.OwinContext;
http2PushCtx.Set(CommonOwinKeys.ServerPushFunc, pushDelegate);
//pass add info from parent to child context. This info can store
//reference table for example or something els that should be passed from
//client request into child push requests.
if (contextEnv.ContainsKey(CommonOwinKeys.AdditionalInfo))
{
http2PushCtx.Set(CommonOwinKeys.AdditionalInfo, contextEnv[CommonOwinKeys.AdditionalInfo]);
}
await _next(http2PushCtx);
http2MsgCtx.FinishResponse();
};
context.OwinContext.Set(CommonOwinKeys.ServerPushFunc, pushDelegate);
context.OwinContext.Set(CommonOwinKeys.EnableServerPush, _isPushEnabled);
await _next(context.OwinContext);
context.FinishResponse();
}
catch (Exception ex)
{
EndResponse(stream, ex);
}
});
}
/// <summary>
/// Check if stream is flowcontrolled.
/// </summary>
/// <param name="stream">The stream to check.</param>
/// <returns>
/// <c>true</c> if the stream is flow controlled; otherwise, <c>false</c>.
/// </returns>
public bool IsStreamFlowControlled(Http2Stream stream)
{
return _streamCollection.IsStreamFlowControlled(stream);
}
public override int Read(Span <byte> destination)
{
Http2Stream http2Stream = _http2Stream ?? throw new ObjectDisposedException(nameof(Http2ReadStream));
return(http2Stream.ReadData(destination));
}
public void StreamClosedHandler(Http2Stream stream)
{
_flowControlledSession.SessionWindowSize -= stream.WindowSize;
}
/// <summary>
/// Builds the SYN_REPLY frame.
/// </summary>
/// <param name="stream">The stream.</param>
/// <param name="headers">The headers.</param>
/// <returns>SYN_REPLY frame.</returns>
public ControlFrame BuildSynReplyFrame(Http2Stream stream, ProtocolHeaders headers)
{
return BuildControlFrame(FrameType.SynReply, stream, headers);
}
/// <summary>
/// Builds the SYN_REPLY frame.
/// </summary>
/// <param name="stream">The stream.</param>
/// <param name="headers">The headers.</param>
/// <returns>SYN_REPLY frame.</returns>
public ControlFrame BuildSynReplyFrame(Http2Stream stream, ProtocolHeaders headers)
{
var frame = BuildControlFrame(FrameType.SynReply, stream, headers);
frame.StreamId = stream.StreamId;
frame.Length = sizeof(Int32) + sizeof(Int32); // sizeof(StreamId) + sizeof(numberOfEntries)
return frame;
}
/// <summary>
/// Builds the SYN_STREAM frame.
/// </summary>
/// <param name="stream">The stream.</param>
/// <param name="headers">The headers.</param>
/// <param name="final">Indicates that stream is not going to send any more data.</param>
/// <returns>SYN_STREAM frame.</returns>
public ControlFrame BuildSynStreamFrame(Http2Stream stream, ProtocolHeaders headers, bool final)
{
ControlFrame frame = BuildControlFrame(FrameType.SynStream, stream, headers);
frame.Priority = SYNStreamPriority;
frame.IsFinal = final;
return frame;
}
public void OnStreamCompleted(Http2Stream stream)
{
}
public WindowUpdateFrame BuildWindowUpdateFrame(Http2Stream stream, Int64 deltaSize)
{
WindowUpdateFrame frame = new WindowUpdateFrame(stream.StreamId, deltaSize);
frame.Flags = 0;
frame.Length = 8;
return frame;
}
public FrameReceivedEventArgs(Http2Stream stream, Frame frame)
{
Stream = stream;
Frame = frame;
}
public void NewStreamOpenedHandler(Http2Stream stream)
{
if (stream == null)
throw new ArgumentNullException("stream is null");
_flowControlledSession.SessionWindowSize += StreamsInitialWindowSize;
}
/// <summary>
/// Check if stream is flowcontrolled.
/// </summary>
/// <param name="stream">The stream to check.</param>
/// <returns>
/// <c>true</c> if the stream is flow controlled; otherwise, <c>false</c>.
/// </returns>
public bool IsStreamFlowControlled(Http2Stream stream)
{
if (stream == null)
throw new ArgumentNullException("stream is null");
return _streamDictionary.IsStreamFlowControlled(stream);
}
public ResponseStream(Http2Stream stream, Action onFirstWrite)
{
_stream = stream;
_onFirstWrite = onFirstWrite;
}
/// <summary>
/// Initializes a new instance of the <see cref="HeadersEventArgs"/> class.
/// </summary>
/// <param name="stream">The stream.</param>
/// <param name="headers">The headers.</param>
public HeadersEventArgs(Http2Stream stream, ProtocolHeaders headers)
: base(stream)
{
this.Headers = headers;
}
/// <summary>
/// Builds the data frame.
/// </summary>
/// <param name="stream">The stream.</param>
/// <param name="data">The data.</param>
/// <returns>Returns DataFrame.</returns>
public DataFrame BuildDataFrame(Http2Stream stream, ProtocolData data)
{
return this.BuildDataFrame(stream, data, false);
}
public RequestSentEventArgs(Http2Stream stream)
{
Stream = stream;
}
/// <summary>
/// Disables the stream flow control.
/// Flow control cant be enabled once disabled
/// </summary>
/// <param name="stream">The stream.</param>
public void DisableStreamFlowControl(Http2Stream stream)
{
_streamCollection.DisableFlowControl(stream);
}
/// <summary>
/// Builds the control frame.
/// </summary>
/// <param name="type">The frame type.</param>
/// <param name="stream">The Http2 stream object.</param>
/// <param name="headers">The headers.</param>
/// <returns>Returns Control frame object.</returns>
private static ControlFrame BuildControlFrame(FrameType type, Http2Stream stream, ProtocolHeaders headers)
{
ControlFrame frame = new ControlFrame(headers);
frame.StreamId = stream.StreamId;
frame.Type = type;
frame.Priority = ControlPriority;
return frame;
}
public void StreamClosedHandler(Http2Stream stream)
{
if (stream == null)
throw new ArgumentNullException("stream is null");
_flowControlledSession.SessionWindowSize -= stream.WindowSize;
}
/// <summary>
/// Builds the RST Frame.
/// </summary>
/// <param name="stream">The stream.</param>
/// <param name="reason">The reason for RST.</param>
/// <returns>RST frame.</returns>
public ControlFrame BuildRSTFrame(Http2Stream stream, StatusCode reason)
{
ControlFrame frame = new ControlFrame();
frame.StreamId = stream.StreamId;
frame.Type = FrameType.RTS;
frame.StatusCode = reason;
frame.Priority = RSTPriority;
return frame;
}
/// <summary>
/// Builds the data frame.
/// </summary>
/// <param name="stream">The stream.</param>
/// <param name="data">The data.</param>
/// <param name="final">if set to <c>true</c> than this frame is final for the stream.</param>
/// <returns>returns DataFrame.</returns>
public DataFrame BuildDataFrame(Http2Stream stream, ProtocolData data, bool final)
{
DataFrame frame = BuildDataFrame(stream.StreamId, data);
frame.IsFinal = final;
return frame;
}
public Http2WriteStream(Http2Stream http2Stream)
{
Debug.Assert(http2Stream != null);
_http2Stream = http2Stream;
}
public ControlFrame BuildSettingsFrame(Http2Stream stream)
{
//TODO Add more logic at building settings frame
var frame = BuildControlFrame(FrameType.Settings, stream, null);
frame.SettingsHeaders = null;
frame.Length = 4;
frame.NumberOfEntries = 0;
return frame;
}
