| | | 1 | | // Licensed to the .NET Foundation under one or more agreements. |
| | | 2 | | // The .NET Foundation licenses this file to you under the MIT license. |
| | | 3 | | |
| | | 4 | | using System; |
| | | 5 | | using System.IO; |
| | | 6 | | using System.Threading; |
| | | 7 | | using System.Threading.Tasks; |
| | | 8 | | using CoreWCF.Runtime; |
| | | 9 | | |
| | | 10 | | namespace CoreWCF.Channels.Framing |
| | | 11 | | { |
| | | 12 | | internal class StreamedFramingRequestContext : RequestContextBase |
| | | 13 | | { |
| | | 14 | | private readonly FramingConnection _connection; |
| | | 15 | | private readonly Message _requestMessage; |
| | | 16 | | private readonly Stream _inputStream; |
| | | 17 | | private bool _isClosed; |
| | | 18 | | private readonly TaskCompletionSource<object> _tcs; |
| | | 19 | | |
| | | 20 | | public StreamedFramingRequestContext(FramingConnection connection, Message requestMessage, Stream inputStream) |
| | | 21 | | : base(requestMessage, connection.ServiceDispatcher.Binding.CloseTimeout, connection.ServiceDispatcher.Bindi |
| | | 22 | | { |
| | | 23 | | _connection = connection; |
| | | 24 | | _requestMessage = requestMessage; |
| | | 25 | | _inputStream = inputStream; |
| | | 26 | | _tcs = new TaskCompletionSource<object>(TaskCreationOptions.RunContinuationsAsynchronously); |
| | | 27 | | } |
| | | 28 | | |
| | | 29 | | protected override void OnAbort() |
| | | 30 | | { |
| | | 31 | | _tcs.TrySetResult(null); |
| | | 32 | | _connection.Abort(); |
| | | 33 | | } |
| | | 34 | | |
| | | 35 | | protected override async Task OnCloseAsync(CancellationToken token) |
| | | 36 | | { |
| | | 37 | | lock (ThisLock) |
| | | 38 | | { |
| | | 39 | | if (_isClosed) |
| | | 40 | | { |
| | | 41 | | return; |
| | | 42 | | } |
| | | 43 | | |
| | | 44 | | _isClosed = true; |
| | | 45 | | } |
| | | 46 | | |
| | | 47 | | bool success = false; |
| | | 48 | | try |
| | | 49 | | { |
| | | 50 | | // first drain our stream if necessary |
| | | 51 | | if (_inputStream != null) |
| | | 52 | | { |
| | | 53 | | byte[] dummy = Fx.AllocateByteArray(_connection.ConnectionBufferSize); |
| | | 54 | | while (!_connection.EOF) |
| | | 55 | | { |
| | | 56 | | int bytesRead = await _inputStream.ReadAsync(dummy, 0, dummy.Length, token); |
| | | 57 | | if (bytesRead == 0) |
| | | 58 | | { |
| | | 59 | | _connection.EOF = true; |
| | | 60 | | } |
| | | 61 | | } |
| | | 62 | | } |
| | | 63 | | |
| | | 64 | | // send back EOF and then recycle the connection |
| | | 65 | | try |
| | | 66 | | { |
| | | 67 | | await _connection.Output.WriteAsync(SingletonEncoder.EndBytes, token); |
| | | 68 | | await _connection.Output.FlushAsync(token); |
| | | 69 | | } |
| | | 70 | | finally |
| | | 71 | | { |
| | | 72 | | if (_connection.RawStream != null) |
| | | 73 | | { |
| | | 74 | | _connection.Logger.UnwrappingRawStream(); |
| | | 75 | | _connection.RawStream = null; |
| | | 76 | | await _connection.Output.CompleteAsync(); |
| | | 77 | | await _connection.Input.CompleteAsync(); |
| | | 78 | | } |
| | | 79 | | } |
| | | 80 | | |
| | | 81 | | // TODO: ChannelBinding |
| | | 82 | | //ChannelBindingUtility.Dispose(ref this.channelBindingToken); |
| | | 83 | | |
| | | 84 | | success = true; |
| | | 85 | | } |
| | | 86 | | finally |
| | | 87 | | { |
| | | 88 | | _tcs.TrySetResult(null); |
| | | 89 | | |
| | | 90 | | if (!success) |
| | | 91 | | { |
| | | 92 | | Abort(); |
| | | 93 | | } |
| | | 94 | | } |
| | | 95 | | } |
| | | 96 | | |
| | | 97 | | protected override async Task OnReplyAsync(Message message, CancellationToken token) |
| | | 98 | | { |
| | | 99 | | if (_connection.MessageEncoderFactory.Encoder is ICompressedMessageEncoder compressedMessageEncoder && compr |
| | | 100 | | { |
| | | 101 | | compressedMessageEncoder.AddCompressedMessageProperties(message, _connection.FramingDecoder.ContentType) |
| | | 102 | | } |
| | | 103 | | |
| | | 104 | | await StreamingConnectionHelper.WriteMessageAsync(message, _connection, false, _connection.ServiceDispatcher |
| | | 105 | | } |
| | | 106 | | |
| | | 107 | | public Task ReplySent => _tcs.Task; |
| | | 108 | | } |
| | | 109 | | |
| | | 110 | | internal static class StreamingConnectionHelper |
| | | 111 | | { |
| | | 112 | | public static async Task WriteMessageAsync(Message message, FramingConnection connection, bool isRequest, |
| | | 113 | | IDefaultCommunicationTimeouts settings, CancellationToken token) |
| | | 114 | | { |
| | | 115 | | byte[] endBytes = null; |
| | | 116 | | if (message != null) |
| | | 117 | | { |
| | | 118 | | MessageEncoder messageEncoder = connection.MessageEncoderFactory.Encoder; |
| | | 119 | | byte[] envelopeStartBytes = SingletonEncoder.EnvelopeStartBytes; |
| | | 120 | | |
| | | 121 | | bool writeStreamed; |
| | | 122 | | if (isRequest) |
| | | 123 | | { |
| | | 124 | | endBytes = SingletonEncoder.EnvelopeEndFramingEndBytes; |
| | | 125 | | writeStreamed = TransferModeHelper.IsRequestStreamed(connection.TransferMode); |
| | | 126 | | } |
| | | 127 | | else |
| | | 128 | | { |
| | | 129 | | endBytes = SingletonEncoder.EnvelopeEndBytes; |
| | | 130 | | writeStreamed = TransferModeHelper.IsResponseStreamed(connection.TransferMode); |
| | | 131 | | } |
| | | 132 | | |
| | | 133 | | if (writeStreamed) |
| | | 134 | | { |
| | | 135 | | await connection.Output.WriteAsync(envelopeStartBytes, token); |
| | | 136 | | Stream connectionStream = new StreamingOutputConnectionStream(connection, settings); |
| | | 137 | | // TODO: Determine if timeout stream is needed as StreamingOutputConnectionStream implements some ti |
| | | 138 | | //Stream writeTimeoutStream = new TimeoutStream(connectionStream, ref timeoutHelper); |
| | | 139 | | await messageEncoder.WriteMessageAsync(message, connectionStream); |
| | | 140 | | await connection.Output.FlushAsync(); |
| | | 141 | | } |
| | | 142 | | else |
| | | 143 | | { |
| | | 144 | | ArraySegment<byte> messageData = messageEncoder.WriteMessage(message, |
| | | 145 | | int.MaxValue, connection.BufferManager, envelopeStartBytes.Length + IntEncoder.MaxEncodedSize); |
| | | 146 | | messageData = SingletonEncoder.EncodeMessageFrame(messageData); |
| | | 147 | | Buffer.BlockCopy(envelopeStartBytes, 0, messageData.Array, messageData.Offset - envelopeStartBytes.L |
| | | 148 | | envelopeStartBytes.Length); |
| | | 149 | | await connection.Output.WriteAsync(new ArraySegment<byte>(messageData.Array, messageData.Offset - en |
| | | 150 | | messageData.Count + envelopeStartBytes.Length), token); |
| | | 151 | | await connection.Output.FlushAsync(); |
| | | 152 | | connection.BufferManager.ReturnBuffer(messageData.Array); |
| | | 153 | | } |
| | | 154 | | } |
| | | 155 | | else if (isRequest) // context handles response end bytes |
| | | 156 | | { |
| | | 157 | | endBytes = SingletonEncoder.EndBytes; |
| | | 158 | | } |
| | | 159 | | |
| | | 160 | | if (endBytes != null) |
| | | 161 | | { |
| | | 162 | | await connection.Output.WriteAsync(endBytes, token); |
| | | 163 | | await connection.Output.FlushAsync(); |
| | | 164 | | } |
| | | 165 | | } |
| | | 166 | | } |
| | | 167 | | |
| | | 168 | | // overrides Stream to add a Framing int at the beginning of each record |
| | | 169 | | internal class StreamingOutputConnectionStream : Stream |
| | | 170 | | { |
| | | 171 | | private readonly byte[] _encodedSize; |
| | | 172 | | private readonly FramingConnection _connection; |
| | | 173 | | private readonly IDefaultCommunicationTimeouts _timeouts; |
| | | 174 | | |
| | 0 | 175 | | public override bool CanRead => false; |
| | | 176 | | |
| | 0 | 177 | | public override bool CanSeek => false; |
| | | 178 | | |
| | 8 | 179 | | public override bool CanWrite => true; |
| | | 180 | | |
| | 0 | 181 | | public override long Length => throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedExcepti |
| | | 182 | | |
| | | 183 | | public override long Position |
| | | 184 | | { |
| | 0 | 185 | | get => throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException(SR.SeekNotSupport |
| | 0 | 186 | | set => throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException(SR.SeekNotSupport |
| | | 187 | | } |
| | | 188 | | |
| | 43 | 189 | | public StreamingOutputConnectionStream(FramingConnection connection, IDefaultCommunicationTimeouts timeouts) |
| | | 190 | | { |
| | 43 | 191 | | _encodedSize = new byte[IntEncoder.MaxEncodedSize]; |
| | 43 | 192 | | _connection = connection; |
| | 43 | 193 | | _timeouts = timeouts; |
| | 43 | 194 | | } |
| | | 195 | | |
| | | 196 | | private async Task WriteChunkSizeAsync(int size, CancellationToken token) |
| | | 197 | | { |
| | 362 | 198 | | if (size > 0) |
| | | 199 | | { |
| | 362 | 200 | | int bytesEncoded = IntEncoder.Encode(size, _encodedSize, 0); |
| | 362 | 201 | | await _connection.Output.WriteAsync(new ArraySegment<byte>(_encodedSize, 0, bytesEncoded), token); |
| | | 202 | | } |
| | 362 | 203 | | } |
| | | 204 | | |
| | | 205 | | public override IAsyncResult BeginWrite(byte[] buffer, int offset, int count, AsyncCallback callback, object sta |
| | | 206 | | { |
| | 0 | 207 | | return WriteAsync(buffer, offset, count, CancellationToken.None).ToApm(callback, state); |
| | | 208 | | } |
| | | 209 | | |
| | | 210 | | public override void EndWrite(IAsyncResult asyncResult) |
| | | 211 | | { |
| | 0 | 212 | | asyncResult.ToApmEnd(); |
| | 0 | 213 | | } |
| | | 214 | | |
| | | 215 | | public override void WriteByte(byte value) |
| | | 216 | | { |
| | 0 | 217 | | var timeoutHelper = new TimeoutHelper(_timeouts.SendTimeout); |
| | 0 | 218 | | CancellationToken ct = timeoutHelper.GetCancellationToken(); |
| | 0 | 219 | | WriteChunkSizeAsync(1, ct).GetAwaiter().GetResult(); |
| | 0 | 220 | | _connection.Output.WriteAsync(new byte[] { value }, ct).GetAwaiter().GetResult(); |
| | 0 | 221 | | _connection.Output.FlushAsync(); |
| | 0 | 222 | | } |
| | | 223 | | |
| | | 224 | | public override void Write(byte[] buffer, int offset, int count) |
| | | 225 | | { |
| | 362 | 226 | | WriteAsync(buffer, offset, count, CancellationToken.None).GetAwaiter().GetResult(); |
| | 362 | 227 | | } |
| | | 228 | | |
| | | 229 | | public override async Task WriteAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken) |
| | | 230 | | { |
| | 362 | 231 | | var timeoutHelper = new TimeoutHelper(_timeouts.SendTimeout); |
| | 362 | 232 | | CancellationToken ct = timeoutHelper.GetCancellationToken(); |
| | 362 | 233 | | await WriteChunkSizeAsync(count, ct); |
| | 362 | 234 | | await _connection.Output.WriteAsync(new ArraySegment<byte>(buffer, offset, count), ct); |
| | 362 | 235 | | await _connection.Output.FlushAsync(); |
| | 362 | 236 | | } |
| | | 237 | | |
| | | 238 | | public override void Flush() |
| | | 239 | | { |
| | 86 | 240 | | _connection.Output.FlushAsync().GetAwaiter().GetResult(); |
| | 86 | 241 | | } |
| | | 242 | | |
| | | 243 | | public override int Read(byte[] buffer, int offset, int count) |
| | | 244 | | { |
| | 0 | 245 | | throw new NotImplementedException(); |
| | | 246 | | } |
| | | 247 | | |
| | | 248 | | public override long Seek(long offset, SeekOrigin origin) |
| | | 249 | | { |
| | 0 | 250 | | throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException(SR.SeekNotSupported)); |
| | | 251 | | } |
| | | 252 | | |
| | | 253 | | public override void SetLength(long value) |
| | | 254 | | { |
| | 0 | 255 | | throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException(SR.SeekNotSupported)); |
| | | 256 | | } |
| | | 257 | | } |
| | | 258 | | } |