示例#1
0
        public void OnInputOrOutputCompleted()
        {
            lock (_stateLock)
            {
                if (_state != Http2ConnectionState.Closed)
                {
                    _frameWriter.WriteGoAwayAsync(_highestOpenedStreamId, Http2ErrorCode.NO_ERROR);
                    UpdateState(Http2ConnectionState.Closed);
                }
            }

            _frameWriter.Complete();
        }
 public void OnInputOrOutputCompleted()
 {
     _stopping = true;
     _frameWriter.Complete();
 }
        public async Task ProcessRequestsAsync <TContext>(IHttpApplication <TContext> application)
        {
            Exception error     = null;
            var       errorCode = Http2ErrorCode.NO_ERROR;

            try
            {
                ValidateTlsRequirements();

                if (!await TryReadPrefaceAsync())
                {
                    return;
                }

                if (!_stopping)
                {
                    await _frameWriter.WriteSettingsAsync(_serverSettings);
                }

                while (!_stopping)
                {
                    var result = await Input.ReadAsync();

                    var readableBuffer = result.Buffer;
                    var consumed       = readableBuffer.Start;
                    var examined       = readableBuffer.End;

                    try
                    {
                        if (!readableBuffer.IsEmpty)
                        {
                            if (Http2FrameReader.ReadFrame(readableBuffer, _incomingFrame, _serverSettings.MaxFrameSize, out consumed, out examined))
                            {
                                Log.LogTrace($"Connection id {ConnectionId} received {_incomingFrame.Type} frame with flags 0x{_incomingFrame.Flags:x} and length {_incomingFrame.Length} for stream ID {_incomingFrame.StreamId}");
                                await ProcessFrameAsync <TContext>(application);
                            }
                        }
                        else if (result.IsCompleted)
                        {
                            return;
                        }
                    }
                    finally
                    {
                        Input.AdvanceTo(consumed, examined);
                    }
                }
            }
            catch (ConnectionResetException ex)
            {
                // Don't log ECONNRESET errors when there are no active streams on the connection. Browsers like IE will reset connections regularly.
                if (_streams.Count > 0)
                {
                    Log.RequestProcessingError(ConnectionId, ex);
                }

                error = ex;
            }
            catch (Http2ConnectionErrorException ex)
            {
                Log.Http2ConnectionError(ConnectionId, ex);
                error     = ex;
                errorCode = ex.ErrorCode;
            }
            catch (HPackDecodingException ex)
            {
                Log.HPackDecodingError(ConnectionId, _currentHeadersStream.StreamId, ex);
                error     = ex;
                errorCode = Http2ErrorCode.COMPRESSION_ERROR;
            }
            catch (Exception ex)
            {
                error     = ex;
                errorCode = Http2ErrorCode.INTERNAL_ERROR;
                throw;
            }
            finally
            {
                try
                {
                    foreach (var stream in _streams.Values)
                    {
                        stream.Http2Abort(error);
                    }

                    await _frameWriter.WriteGoAwayAsync(_highestOpenedStreamId, errorCode);

                    _frameWriter.Complete();
                }
                finally
                {
                    Input.Complete();
                    _frameWriter.Abort(ex: null);
                }
            }
        }