| | | 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.Collections.Generic; |
| | | 6 | | using System.IO; |
| | | 7 | | using System.Xml; |
| | | 8 | | |
| | | 9 | | namespace CoreWCF.Channels |
| | | 10 | | { |
| | | 11 | | public abstract class MessageBuffer : System.IDisposable |
| | | 12 | | { |
| | | 13 | | public abstract int BufferSize { get; } |
| | | 14 | | |
| | | 15 | | void IDisposable.Dispose() |
| | | 16 | | { |
| | | 17 | | Close(); |
| | | 18 | | } |
| | | 19 | | |
| | | 20 | | public abstract void Close(); |
| | | 21 | | |
| | | 22 | | public virtual void WriteMessage(Stream stream) |
| | | 23 | | { |
| | | 24 | | if (stream == null) |
| | | 25 | | { |
| | | 26 | | throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull(nameof(stream)); |
| | | 27 | | } |
| | | 28 | | |
| | | 29 | | Message message = CreateMessage(); |
| | | 30 | | using (message) |
| | | 31 | | { |
| | | 32 | | XmlDictionaryWriter writer = XmlDictionaryWriter.CreateBinaryWriter(stream, XD.Dictionary, null, false); |
| | | 33 | | using (writer) |
| | | 34 | | { |
| | | 35 | | message.WriteMessage(writer); |
| | | 36 | | } |
| | | 37 | | } |
| | | 38 | | } |
| | | 39 | | |
| | | 40 | | public virtual string MessageContentType |
| | | 41 | | { |
| | | 42 | | get { return FramingEncodingString.Binary; } |
| | | 43 | | } |
| | | 44 | | |
| | | 45 | | public abstract Message CreateMessage(); |
| | | 46 | | |
| | | 47 | | internal Exception CreateBufferDisposedException() |
| | | 48 | | { |
| | | 49 | | return new ObjectDisposedException("", SR.MessageBufferIsClosed); |
| | | 50 | | } |
| | | 51 | | |
| | | 52 | | //public XPathNavigator CreateNavigator() |
| | | 53 | | //{ |
| | | 54 | | // return CreateNavigator(int.MaxValue, XmlSpace.None); |
| | | 55 | | //} |
| | | 56 | | |
| | | 57 | | //public XPathNavigator CreateNavigator(int nodeQuota) |
| | | 58 | | //{ |
| | | 59 | | // return CreateNavigator(nodeQuota, XmlSpace.None); |
| | | 60 | | //} |
| | | 61 | | |
| | | 62 | | //public XPathNavigator CreateNavigator(XmlSpace space) |
| | | 63 | | //{ |
| | | 64 | | // return CreateNavigator(int.MaxValue, space); |
| | | 65 | | //} |
| | | 66 | | |
| | | 67 | | //public XPathNavigator CreateNavigator(int nodeQuota, XmlSpace space) |
| | | 68 | | //{ |
| | | 69 | | // if (nodeQuota <= 0) |
| | | 70 | | // throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("nodeQuota", |
| | | 71 | | |
| | | 72 | | // return new SeekableMessageNavigator(this.CreateMessage(), nodeQuota, space, true, true); |
| | | 73 | | //} |
| | | 74 | | } |
| | | 75 | | |
| | | 76 | | |
| | | 77 | | internal class DefaultMessageBuffer : MessageBuffer |
| | | 78 | | { |
| | | 79 | | private readonly XmlBuffer _msgBuffer; |
| | | 80 | | private readonly KeyValuePair<string, object>[] _properties; |
| | | 81 | | private readonly bool[] _understoodHeaders; |
| | | 82 | | private bool _closed; |
| | | 83 | | private readonly MessageVersion _version; |
| | | 84 | | private readonly Uri _to; |
| | | 85 | | private readonly string _action; |
| | | 86 | | private readonly bool _isNullMessage; |
| | | 87 | | |
| | 178 | 88 | | public DefaultMessageBuffer(Message message, XmlBuffer msgBuffer) |
| | | 89 | | { |
| | 178 | 90 | | _msgBuffer = msgBuffer; |
| | 178 | 91 | | _version = message.Version; |
| | 178 | 92 | | _isNullMessage = message is NullMessage; |
| | | 93 | | |
| | 178 | 94 | | _properties = new KeyValuePair<string, object>[message.Properties.Count]; |
| | 178 | 95 | | ((ICollection<KeyValuePair<string, object>>)message.Properties).CopyTo(_properties, 0); |
| | 178 | 96 | | _understoodHeaders = new bool[message.Headers.Count]; |
| | 712 | 97 | | for (int i = 0; i < _understoodHeaders.Length; ++i) |
| | | 98 | | { |
| | 178 | 99 | | _understoodHeaders[i] = message.Headers.IsUnderstood(i); |
| | | 100 | | } |
| | | 101 | | |
| | | 102 | | //CSDMain 17837: CreateBufferedCopy should have code to copy over the To and Action headers |
| | 178 | 103 | | if (_version == MessageVersion.None) |
| | | 104 | | { |
| | 0 | 105 | | _to = message.Headers.To; |
| | 0 | 106 | | _action = message.Headers.Action; |
| | | 107 | | } |
| | 178 | 108 | | } |
| | | 109 | | |
| | | 110 | | private object ThisLock |
| | | 111 | | { |
| | 178 | 112 | | get { return _msgBuffer; } |
| | | 113 | | } |
| | | 114 | | |
| | | 115 | | public override int BufferSize |
| | | 116 | | { |
| | 0 | 117 | | get { return _msgBuffer.BufferSize; } |
| | | 118 | | } |
| | | 119 | | |
| | | 120 | | public override void Close() |
| | | 121 | | { |
| | 0 | 122 | | lock (ThisLock) |
| | | 123 | | { |
| | 0 | 124 | | if (_closed) |
| | | 125 | | { |
| | 0 | 126 | | return; |
| | | 127 | | } |
| | | 128 | | |
| | 0 | 129 | | _closed = true; |
| | 0 | 130 | | for (int i = 0; i < _properties.Length; i++) |
| | | 131 | | { |
| | 0 | 132 | | if (_properties[i].Value is IDisposable disposable) |
| | | 133 | | { |
| | 0 | 134 | | disposable.Dispose(); |
| | | 135 | | } |
| | | 136 | | } |
| | 0 | 137 | | } |
| | 0 | 138 | | } |
| | | 139 | | |
| | | 140 | | public override Message CreateMessage() |
| | | 141 | | { |
| | 178 | 142 | | if (_closed) |
| | | 143 | | { |
| | 0 | 144 | | throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(CreateBufferDisposedException()); |
| | | 145 | | } |
| | | 146 | | |
| | | 147 | | Message msg; |
| | 178 | 148 | | if (_isNullMessage) |
| | | 149 | | { |
| | 0 | 150 | | msg = new NullMessage(); |
| | | 151 | | } |
| | | 152 | | else |
| | | 153 | | { |
| | 178 | 154 | | msg = Message.CreateMessage(_msgBuffer.GetReader(0), int.MaxValue, _version); |
| | | 155 | | } |
| | | 156 | | |
| | 178 | 157 | | lock (ThisLock) |
| | | 158 | | { |
| | 178 | 159 | | msg.Properties.CopyProperties(_properties); |
| | 178 | 160 | | } |
| | | 161 | | |
| | 712 | 162 | | for (int i = 0; i < _understoodHeaders.Length; ++i) |
| | | 163 | | { |
| | 178 | 164 | | if (_understoodHeaders[i]) |
| | | 165 | | { |
| | 178 | 166 | | msg.Headers.AddUnderstood(i); |
| | | 167 | | } |
| | | 168 | | } |
| | | 169 | | |
| | 178 | 170 | | if (_to != null) |
| | | 171 | | { |
| | 0 | 172 | | msg.Headers.To = _to; |
| | | 173 | | } |
| | | 174 | | |
| | 178 | 175 | | if (_action != null) |
| | | 176 | | { |
| | 0 | 177 | | msg.Headers.Action = _action; |
| | | 178 | | } |
| | | 179 | | |
| | 178 | 180 | | return msg; |
| | | 181 | | } |
| | | 182 | | } |
| | | 183 | | |
| | | 184 | | internal class BufferedMessageBuffer : MessageBuffer |
| | | 185 | | { |
| | | 186 | | private IBufferedMessageData _messageData; |
| | | 187 | | private readonly KeyValuePair<string, object>[] _properties; |
| | | 188 | | private bool _closed; |
| | | 189 | | private readonly bool[] _understoodHeaders; |
| | | 190 | | private readonly bool _understoodHeadersModified; |
| | | 191 | | |
| | | 192 | | public BufferedMessageBuffer(IBufferedMessageData messageData, |
| | | 193 | | KeyValuePair<string, object>[] properties, bool[] understoodHeaders, bool understoodHeadersModified) |
| | | 194 | | { |
| | | 195 | | _messageData = messageData; |
| | | 196 | | _properties = properties; |
| | | 197 | | _understoodHeaders = understoodHeaders; |
| | | 198 | | _understoodHeadersModified = understoodHeadersModified; |
| | | 199 | | messageData.Open(); |
| | | 200 | | } |
| | | 201 | | |
| | | 202 | | public override int BufferSize |
| | | 203 | | { |
| | | 204 | | get |
| | | 205 | | { |
| | | 206 | | lock (ThisLock) |
| | | 207 | | { |
| | | 208 | | if (_closed) |
| | | 209 | | { |
| | | 210 | | throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(CreateBufferDisposedException()); |
| | | 211 | | } |
| | | 212 | | |
| | | 213 | | return _messageData.Buffer.Count; |
| | | 214 | | } |
| | | 215 | | } |
| | | 216 | | } |
| | | 217 | | |
| | | 218 | | public override void WriteMessage(Stream stream) |
| | | 219 | | { |
| | | 220 | | if (stream == null) |
| | | 221 | | { |
| | | 222 | | throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull(nameof(stream)); |
| | | 223 | | } |
| | | 224 | | |
| | | 225 | | lock (ThisLock) |
| | | 226 | | { |
| | | 227 | | if (_closed) |
| | | 228 | | { |
| | | 229 | | throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(CreateBufferDisposedException()); |
| | | 230 | | } |
| | | 231 | | |
| | | 232 | | ArraySegment<byte> buffer = _messageData.Buffer; |
| | | 233 | | stream.Write(buffer.Array, buffer.Offset, buffer.Count); |
| | | 234 | | } |
| | | 235 | | } |
| | | 236 | | |
| | | 237 | | public override string MessageContentType |
| | | 238 | | { |
| | | 239 | | get |
| | | 240 | | { |
| | | 241 | | lock (ThisLock) |
| | | 242 | | { |
| | | 243 | | if (_closed) |
| | | 244 | | { |
| | | 245 | | throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(CreateBufferDisposedException()); |
| | | 246 | | } |
| | | 247 | | |
| | | 248 | | return _messageData.MessageEncoder.ContentType; |
| | | 249 | | } |
| | | 250 | | } |
| | | 251 | | } |
| | | 252 | | |
| | | 253 | | private object ThisLock { get; } = new object(); |
| | | 254 | | |
| | | 255 | | public override void Close() |
| | | 256 | | { |
| | | 257 | | lock (ThisLock) |
| | | 258 | | { |
| | | 259 | | if (!_closed) |
| | | 260 | | { |
| | | 261 | | _closed = true; |
| | | 262 | | _messageData.Close(); |
| | | 263 | | _messageData = null; |
| | | 264 | | } |
| | | 265 | | } |
| | | 266 | | } |
| | | 267 | | |
| | | 268 | | public override Message CreateMessage() |
| | | 269 | | { |
| | | 270 | | lock (ThisLock) |
| | | 271 | | { |
| | | 272 | | if (_closed) |
| | | 273 | | { |
| | | 274 | | throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(CreateBufferDisposedException()); |
| | | 275 | | } |
| | | 276 | | |
| | | 277 | | RecycledMessageState recycledMessageState = _messageData.TakeMessageState(); |
| | | 278 | | if (recycledMessageState == null) |
| | | 279 | | { |
| | | 280 | | recycledMessageState = new RecycledMessageState(); |
| | | 281 | | } |
| | | 282 | | |
| | | 283 | | BufferedMessage bufferedMessage = new BufferedMessage(_messageData, recycledMessageState, _understoodHea |
| | | 284 | | bufferedMessage.Properties.CopyProperties(_properties); |
| | | 285 | | _messageData.Open(); |
| | | 286 | | return bufferedMessage; |
| | | 287 | | } |
| | | 288 | | } |
| | | 289 | | } |
| | | 290 | | |
| | | 291 | | internal class BodyWriterMessageBuffer : MessageBuffer |
| | | 292 | | { |
| | | 293 | | public BodyWriterMessageBuffer(MessageHeaders headers, |
| | | 294 | | KeyValuePair<string, object>[] properties, BodyWriter bodyWriter) |
| | | 295 | | { |
| | | 296 | | BodyWriter = bodyWriter; |
| | | 297 | | Headers = new MessageHeaders(headers); |
| | | 298 | | Properties = properties; |
| | | 299 | | } |
| | | 300 | | |
| | | 301 | | protected object ThisLock { get; } = new object(); |
| | | 302 | | |
| | | 303 | | public override int BufferSize |
| | | 304 | | { |
| | | 305 | | get { return 0; } |
| | | 306 | | } |
| | | 307 | | |
| | | 308 | | public override void Close() |
| | | 309 | | { |
| | | 310 | | lock (ThisLock) |
| | | 311 | | { |
| | | 312 | | if (!Closed) |
| | | 313 | | { |
| | | 314 | | Closed = true; |
| | | 315 | | BodyWriter = null; |
| | | 316 | | Headers = null; |
| | | 317 | | Properties = null; |
| | | 318 | | } |
| | | 319 | | } |
| | | 320 | | } |
| | | 321 | | |
| | | 322 | | public override Message CreateMessage() |
| | | 323 | | { |
| | | 324 | | lock (ThisLock) |
| | | 325 | | { |
| | | 326 | | if (Closed) |
| | | 327 | | { |
| | | 328 | | throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(CreateBufferDisposedException()); |
| | | 329 | | } |
| | | 330 | | |
| | | 331 | | return new BodyWriterMessage(Headers, Properties, BodyWriter); |
| | | 332 | | } |
| | | 333 | | } |
| | | 334 | | |
| | | 335 | | protected BodyWriter BodyWriter { get; private set; } |
| | | 336 | | |
| | | 337 | | protected MessageHeaders Headers { get; private set; } |
| | | 338 | | |
| | | 339 | | protected KeyValuePair<string, object>[] Properties { get; private set; } |
| | | 340 | | |
| | | 341 | | protected bool Closed { get; private set; } |
| | | 342 | | } |
| | | 343 | | } |
| | | 344 | | |