| | | 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.Xml; |
| | | 7 | | using CoreWCF.Runtime; |
| | | 8 | | |
| | | 9 | | namespace CoreWCF.Channels |
| | | 10 | | { |
| | | 11 | | internal abstract class ReceivedMessage : Message |
| | | 12 | | { |
| | | 13 | | private bool _isFault; |
| | | 14 | | private bool _isEmpty; |
| | | 15 | | |
| | | 16 | | public override bool IsEmpty |
| | | 17 | | { |
| | | 18 | | get { return _isEmpty; } |
| | | 19 | | } |
| | | 20 | | |
| | | 21 | | public override bool IsFault |
| | | 22 | | { |
| | | 23 | | get { return _isFault; } |
| | | 24 | | } |
| | | 25 | | |
| | | 26 | | protected static bool HasHeaderElement(XmlDictionaryReader reader, EnvelopeVersion envelopeVersion) |
| | | 27 | | { |
| | | 28 | | return reader.IsStartElement(XD.MessageDictionary.Header, envelopeVersion.DictionaryNamespace); |
| | | 29 | | } |
| | | 30 | | |
| | | 31 | | protected override void OnWriteBodyContents(XmlDictionaryWriter writer) |
| | | 32 | | { |
| | | 33 | | if (!_isEmpty) |
| | | 34 | | { |
| | | 35 | | using (XmlDictionaryReader bodyReader = OnGetReaderAtBodyContents()) |
| | | 36 | | { |
| | | 37 | | if (bodyReader.ReadState == ReadState.Error || bodyReader.ReadState == ReadState.Closed) |
| | | 38 | | { |
| | | 39 | | throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.Forma |
| | | 40 | | } |
| | | 41 | | |
| | | 42 | | while (bodyReader.NodeType != XmlNodeType.EndElement && !bodyReader.EOF) |
| | | 43 | | { |
| | | 44 | | writer.WriteNode(bodyReader, false); |
| | | 45 | | } |
| | | 46 | | |
| | | 47 | | ReadFromBodyContentsToEnd(bodyReader, Version.Envelope); |
| | | 48 | | } |
| | | 49 | | } |
| | | 50 | | } |
| | | 51 | | |
| | | 52 | | protected bool ReadStartBody(XmlDictionaryReader reader) |
| | | 53 | | { |
| | | 54 | | return ReadStartBody(reader, Version.Envelope, out _isFault, out _isEmpty); |
| | | 55 | | } |
| | | 56 | | |
| | | 57 | | protected static EnvelopeVersion ReadStartEnvelope(XmlDictionaryReader reader) |
| | | 58 | | { |
| | | 59 | | EnvelopeVersion envelopeVersion; |
| | | 60 | | |
| | | 61 | | if (reader.IsStartElement(XD.MessageDictionary.Envelope, XD.Message12Dictionary.Namespace)) |
| | | 62 | | { |
| | | 63 | | envelopeVersion = EnvelopeVersion.Soap12; |
| | | 64 | | } |
| | | 65 | | else if (reader.IsStartElement(XD.MessageDictionary.Envelope, XD.Message11Dictionary.Namespace)) |
| | | 66 | | { |
| | | 67 | | envelopeVersion = EnvelopeVersion.Soap11; |
| | | 68 | | } |
| | | 69 | | else |
| | | 70 | | { |
| | | 71 | | throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new CommunicationException(SR.MessageVersionUn |
| | | 72 | | } |
| | | 73 | | |
| | | 74 | | if (reader.IsEmptyElement) |
| | | 75 | | { |
| | | 76 | | throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new CommunicationException(SR.MessageBodyMissi |
| | | 77 | | } |
| | | 78 | | |
| | | 79 | | reader.Read(); |
| | | 80 | | return envelopeVersion; |
| | | 81 | | } |
| | | 82 | | |
| | | 83 | | protected static void VerifyStartBody(XmlDictionaryReader reader, EnvelopeVersion version) |
| | | 84 | | { |
| | | 85 | | if (!reader.IsStartElement(XD.MessageDictionary.Body, version.DictionaryNamespace)) |
| | | 86 | | { |
| | | 87 | | throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new CommunicationException(SR.MessageBodyMissi |
| | | 88 | | } |
| | | 89 | | } |
| | | 90 | | |
| | | 91 | | private static void ReadFromBodyContentsToEnd(XmlDictionaryReader reader, EnvelopeVersion envelopeVersion) |
| | | 92 | | { |
| | | 93 | | if (envelopeVersion != EnvelopeVersion.None) |
| | | 94 | | { |
| | | 95 | | reader.ReadEndElement(); // </Body> |
| | | 96 | | reader.ReadEndElement(); // </Envelope> |
| | | 97 | | } |
| | | 98 | | reader.MoveToContent(); |
| | | 99 | | } |
| | | 100 | | |
| | | 101 | | internal static bool ReadStartBody(XmlDictionaryReader reader, EnvelopeVersion envelopeVersion, out bool isFault |
| | | 102 | | { |
| | | 103 | | if (reader.IsEmptyElement) |
| | | 104 | | { |
| | | 105 | | reader.Read(); |
| | | 106 | | isEmpty = true; |
| | | 107 | | isFault = false; |
| | | 108 | | reader.ReadEndElement(); |
| | | 109 | | return false; |
| | | 110 | | } |
| | | 111 | | else |
| | | 112 | | { |
| | | 113 | | reader.Read(); |
| | | 114 | | if (reader.NodeType != XmlNodeType.Element) |
| | | 115 | | { |
| | | 116 | | reader.MoveToContent(); |
| | | 117 | | } |
| | | 118 | | |
| | | 119 | | if (reader.NodeType == XmlNodeType.Element) |
| | | 120 | | { |
| | | 121 | | isFault = IsFaultStartElement(reader, envelopeVersion); |
| | | 122 | | isEmpty = false; |
| | | 123 | | } |
| | | 124 | | else if (reader.NodeType == XmlNodeType.EndElement) |
| | | 125 | | { |
| | | 126 | | isEmpty = true; |
| | | 127 | | isFault = false; |
| | | 128 | | ReadFromBodyContentsToEnd(reader, envelopeVersion); |
| | | 129 | | return false; |
| | | 130 | | } |
| | | 131 | | else |
| | | 132 | | { |
| | | 133 | | isEmpty = false; |
| | | 134 | | isFault = false; |
| | | 135 | | } |
| | | 136 | | |
| | | 137 | | return true; |
| | | 138 | | } |
| | | 139 | | } |
| | | 140 | | |
| | | 141 | | internal static bool IsFaultStartElement(XmlDictionaryReader reader, EnvelopeVersion version) |
| | | 142 | | { |
| | | 143 | | return reader.IsStartElement(XD.MessageDictionary.Fault, version.DictionaryNamespace); |
| | | 144 | | } |
| | | 145 | | } |
| | | 146 | | |
| | | 147 | | internal sealed class BufferedMessage : ReceivedMessage |
| | | 148 | | { |
| | | 149 | | private readonly MessageHeaders _headers; |
| | | 150 | | private readonly MessageProperties _properties; |
| | | 151 | | private RecycledMessageState _recycledMessageState; |
| | | 152 | | private XmlDictionaryReader _reader; |
| | | 153 | | private readonly XmlAttributeHolder[] _bodyAttributes; |
| | | 154 | | |
| | | 155 | | public BufferedMessage(IBufferedMessageData messageData, RecycledMessageState recycledMessageState) |
| | | 156 | | : this(messageData, recycledMessageState, null, false) |
| | | 157 | | { |
| | | 158 | | } |
| | | 159 | | |
| | | 160 | | public BufferedMessage(IBufferedMessageData messageData, RecycledMessageState recycledMessageState, bool[] under |
| | | 161 | | { |
| | | 162 | | //bool throwing = true; |
| | | 163 | | //try |
| | | 164 | | //{ |
| | | 165 | | _recycledMessageState = recycledMessageState; |
| | | 166 | | MessageData = messageData; |
| | | 167 | | _properties = recycledMessageState.TakeProperties(); |
| | | 168 | | if (_properties == null) |
| | | 169 | | { |
| | | 170 | | _properties = new MessageProperties(); |
| | | 171 | | } |
| | | 172 | | |
| | | 173 | | XmlDictionaryReader reader = messageData.GetMessageReader(); |
| | | 174 | | MessageVersion desiredVersion = messageData.MessageEncoder.MessageVersion; |
| | | 175 | | |
| | | 176 | | if (desiredVersion.Envelope == EnvelopeVersion.None) |
| | | 177 | | { |
| | | 178 | | _reader = reader; |
| | | 179 | | _headers = new MessageHeaders(desiredVersion); |
| | | 180 | | } |
| | | 181 | | else |
| | | 182 | | { |
| | | 183 | | EnvelopeVersion envelopeVersion = ReadStartEnvelope(reader); |
| | | 184 | | if (desiredVersion.Envelope != envelopeVersion) |
| | | 185 | | { |
| | | 186 | | Exception versionMismatchException = new ArgumentException(SR.Format(SR.EncoderEnvelopeVersionMismat |
| | | 187 | | throw TraceUtility.ThrowHelperError( |
| | | 188 | | new CommunicationException(versionMismatchException.Message, versionMismatchException), |
| | | 189 | | this); |
| | | 190 | | } |
| | | 191 | | |
| | | 192 | | if (HasHeaderElement(reader, envelopeVersion)) |
| | | 193 | | { |
| | | 194 | | _headers = recycledMessageState.TakeHeaders(); |
| | | 195 | | if (_headers == null) |
| | | 196 | | { |
| | | 197 | | _headers = new MessageHeaders(desiredVersion, reader, messageData, recycledMessageState, underst |
| | | 198 | | } |
| | | 199 | | else |
| | | 200 | | { |
| | | 201 | | _headers.Init(desiredVersion, reader, messageData, recycledMessageState, understoodHeaders, unde |
| | | 202 | | } |
| | | 203 | | } |
| | | 204 | | else |
| | | 205 | | { |
| | | 206 | | _headers = new MessageHeaders(desiredVersion); |
| | | 207 | | } |
| | | 208 | | |
| | | 209 | | VerifyStartBody(reader, envelopeVersion); |
| | | 210 | | |
| | | 211 | | int maxSizeOfAttributes = int.MaxValue; |
| | | 212 | | _bodyAttributes = XmlAttributeHolder.ReadAttributes(reader, ref maxSizeOfAttributes); |
| | | 213 | | if (maxSizeOfAttributes < int.MaxValue - 4096) |
| | | 214 | | { |
| | | 215 | | _bodyAttributes = null; |
| | | 216 | | } |
| | | 217 | | |
| | | 218 | | if (ReadStartBody(reader)) |
| | | 219 | | { |
| | | 220 | | _reader = reader; |
| | | 221 | | } |
| | | 222 | | else |
| | | 223 | | { |
| | | 224 | | reader.Dispose(); |
| | | 225 | | } |
| | | 226 | | } |
| | | 227 | | //throwing = false; |
| | | 228 | | //} |
| | | 229 | | //finally |
| | | 230 | | //{ |
| | | 231 | | // if (throwing && MessageLogger.LoggingEnabled) |
| | | 232 | | // { |
| | | 233 | | // MessageLogger.LogMessage(messageData.Buffer, MessageLoggingSource.Malformed); |
| | | 234 | | // } |
| | | 235 | | //} |
| | | 236 | | } |
| | | 237 | | |
| | | 238 | | public override MessageHeaders Headers |
| | | 239 | | { |
| | | 240 | | get |
| | | 241 | | { |
| | | 242 | | if (IsDisposed) |
| | | 243 | | { |
| | | 244 | | throw TraceUtility.ThrowHelperError(this.CreateMessageDisposedException(), this); |
| | | 245 | | } |
| | | 246 | | |
| | | 247 | | return _headers; |
| | | 248 | | } |
| | | 249 | | } |
| | | 250 | | |
| | | 251 | | internal IBufferedMessageData MessageData { get; private set; } |
| | | 252 | | |
| | | 253 | | public override MessageProperties Properties |
| | | 254 | | { |
| | | 255 | | get |
| | | 256 | | { |
| | | 257 | | if (IsDisposed) |
| | | 258 | | { |
| | | 259 | | throw TraceUtility.ThrowHelperError(this.CreateMessageDisposedException(), this); |
| | | 260 | | } |
| | | 261 | | |
| | | 262 | | return _properties; |
| | | 263 | | } |
| | | 264 | | } |
| | | 265 | | |
| | | 266 | | public override RecycledMessageState RecycledMessageState |
| | | 267 | | { |
| | | 268 | | get { return _recycledMessageState; } |
| | | 269 | | } |
| | | 270 | | |
| | | 271 | | public override MessageVersion Version |
| | | 272 | | { |
| | | 273 | | get |
| | | 274 | | { |
| | | 275 | | return _headers.MessageVersion; |
| | | 276 | | } |
| | | 277 | | } |
| | | 278 | | |
| | | 279 | | protected override XmlDictionaryReader OnGetReaderAtBodyContents() |
| | | 280 | | { |
| | | 281 | | XmlDictionaryReader reader = _reader; |
| | | 282 | | _reader = null; |
| | | 283 | | return reader; |
| | | 284 | | } |
| | | 285 | | |
| | | 286 | | public override XmlDictionaryReader GetReaderAtHeader() |
| | | 287 | | { |
| | | 288 | | if (!_headers.ContainsOnlyBufferedMessageHeaders) |
| | | 289 | | { |
| | | 290 | | return base.GetReaderAtHeader(); |
| | | 291 | | } |
| | | 292 | | |
| | | 293 | | XmlDictionaryReader reader = MessageData.GetMessageReader(); |
| | | 294 | | if (reader.NodeType != XmlNodeType.Element) |
| | | 295 | | { |
| | | 296 | | reader.MoveToContent(); |
| | | 297 | | } |
| | | 298 | | |
| | | 299 | | reader.Read(); |
| | | 300 | | if (HasHeaderElement(reader, _headers.MessageVersion.Envelope)) |
| | | 301 | | { |
| | | 302 | | return reader; |
| | | 303 | | } |
| | | 304 | | |
| | | 305 | | return base.GetReaderAtHeader(); |
| | | 306 | | } |
| | | 307 | | |
| | | 308 | | public XmlDictionaryReader GetBufferedReaderAtBody() |
| | | 309 | | { |
| | | 310 | | XmlDictionaryReader reader = MessageData.GetMessageReader(); |
| | | 311 | | if (reader.NodeType != XmlNodeType.Element) |
| | | 312 | | { |
| | | 313 | | reader.MoveToContent(); |
| | | 314 | | } |
| | | 315 | | |
| | | 316 | | if (Version.Envelope != EnvelopeVersion.None) |
| | | 317 | | { |
| | | 318 | | reader.Read(); |
| | | 319 | | if (HasHeaderElement(reader, _headers.MessageVersion.Envelope)) |
| | | 320 | | { |
| | | 321 | | reader.Skip(); |
| | | 322 | | } |
| | | 323 | | |
| | | 324 | | if (reader.NodeType != XmlNodeType.Element) |
| | | 325 | | { |
| | | 326 | | reader.MoveToContent(); |
| | | 327 | | } |
| | | 328 | | } |
| | | 329 | | return reader; |
| | | 330 | | } |
| | | 331 | | |
| | | 332 | | public XmlDictionaryReader GetMessageReader() |
| | | 333 | | { |
| | | 334 | | return MessageData.GetMessageReader(); |
| | | 335 | | } |
| | | 336 | | |
| | | 337 | | protected override void OnBodyToString(XmlDictionaryWriter writer) |
| | | 338 | | { |
| | | 339 | | using (XmlDictionaryReader reader = GetBufferedReaderAtBody()) |
| | | 340 | | { |
| | | 341 | | if (Version == MessageVersion.None) |
| | | 342 | | { |
| | | 343 | | writer.WriteNode(reader, false); |
| | | 344 | | } |
| | | 345 | | else |
| | | 346 | | { |
| | | 347 | | if (!reader.IsEmptyElement) |
| | | 348 | | { |
| | | 349 | | reader.ReadStartElement(); |
| | | 350 | | while (reader.NodeType != XmlNodeType.EndElement) |
| | | 351 | | { |
| | | 352 | | writer.WriteNode(reader, false); |
| | | 353 | | } |
| | | 354 | | } |
| | | 355 | | } |
| | | 356 | | } |
| | | 357 | | } |
| | | 358 | | protected override void OnClose() |
| | | 359 | | { |
| | | 360 | | Exception ex = null; |
| | | 361 | | try |
| | | 362 | | { |
| | | 363 | | base.OnClose(); |
| | | 364 | | } |
| | | 365 | | catch (Exception e) |
| | | 366 | | { |
| | | 367 | | if (Fx.IsFatal(e)) |
| | | 368 | | { |
| | | 369 | | throw; |
| | | 370 | | } |
| | | 371 | | |
| | | 372 | | ex = e; |
| | | 373 | | } |
| | | 374 | | |
| | | 375 | | try |
| | | 376 | | { |
| | | 377 | | _properties.Dispose(); |
| | | 378 | | } |
| | | 379 | | catch (Exception e) |
| | | 380 | | { |
| | | 381 | | if (Fx.IsFatal(e)) |
| | | 382 | | { |
| | | 383 | | throw; |
| | | 384 | | } |
| | | 385 | | |
| | | 386 | | if (ex == null) |
| | | 387 | | { |
| | | 388 | | ex = e; |
| | | 389 | | } |
| | | 390 | | } |
| | | 391 | | |
| | | 392 | | try |
| | | 393 | | { |
| | | 394 | | if (_reader != null) |
| | | 395 | | { |
| | | 396 | | _reader.Dispose(); |
| | | 397 | | } |
| | | 398 | | } |
| | | 399 | | catch (Exception e) |
| | | 400 | | { |
| | | 401 | | if (Fx.IsFatal(e)) |
| | | 402 | | { |
| | | 403 | | throw; |
| | | 404 | | } |
| | | 405 | | |
| | | 406 | | if (ex == null) |
| | | 407 | | { |
| | | 408 | | ex = e; |
| | | 409 | | } |
| | | 410 | | } |
| | | 411 | | |
| | | 412 | | try |
| | | 413 | | { |
| | | 414 | | _recycledMessageState.ReturnHeaders(_headers); |
| | | 415 | | _recycledMessageState.ReturnProperties(_properties); |
| | | 416 | | MessageData.ReturnMessageState(_recycledMessageState); |
| | | 417 | | _recycledMessageState = null; |
| | | 418 | | MessageData.Close(); |
| | | 419 | | MessageData = null; |
| | | 420 | | } |
| | | 421 | | catch (Exception e) |
| | | 422 | | { |
| | | 423 | | if (Fx.IsFatal(e)) |
| | | 424 | | { |
| | | 425 | | throw; |
| | | 426 | | } |
| | | 427 | | |
| | | 428 | | if (ex == null) |
| | | 429 | | { |
| | | 430 | | ex = e; |
| | | 431 | | } |
| | | 432 | | } |
| | | 433 | | |
| | | 434 | | if (ex != null) |
| | | 435 | | { |
| | | 436 | | throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(ex); |
| | | 437 | | } |
| | | 438 | | } |
| | | 439 | | |
| | | 440 | | protected override void OnWriteStartEnvelope(XmlDictionaryWriter writer) |
| | | 441 | | { |
| | | 442 | | using (XmlDictionaryReader reader = GetMessageReader()) |
| | | 443 | | { |
| | | 444 | | reader.MoveToContent(); |
| | | 445 | | EnvelopeVersion envelopeVersion = Version.Envelope; |
| | | 446 | | writer.WriteStartElement(reader.Prefix, MessageStrings.Envelope, envelopeVersion.Namespace); |
| | | 447 | | writer.WriteAttributes(reader, false); |
| | | 448 | | } |
| | | 449 | | } |
| | | 450 | | |
| | | 451 | | protected override void OnWriteStartHeaders(XmlDictionaryWriter writer) |
| | | 452 | | { |
| | | 453 | | using (XmlDictionaryReader reader = GetMessageReader()) |
| | | 454 | | { |
| | | 455 | | reader.MoveToContent(); |
| | | 456 | | EnvelopeVersion envelopeVersion = Version.Envelope; |
| | | 457 | | reader.Read(); |
| | | 458 | | if (HasHeaderElement(reader, envelopeVersion)) |
| | | 459 | | { |
| | | 460 | | writer.WriteStartElement(reader.Prefix, MessageStrings.Header, envelopeVersion.Namespace); |
| | | 461 | | writer.WriteAttributes(reader, false); |
| | | 462 | | } |
| | | 463 | | else |
| | | 464 | | { |
| | | 465 | | writer.WriteStartElement(MessageStrings.Prefix, MessageStrings.Header, envelopeVersion.Namespace); |
| | | 466 | | } |
| | | 467 | | } |
| | | 468 | | } |
| | | 469 | | |
| | | 470 | | protected override void OnWriteStartBody(XmlDictionaryWriter writer) |
| | | 471 | | { |
| | | 472 | | using (XmlDictionaryReader reader = GetBufferedReaderAtBody()) |
| | | 473 | | { |
| | | 474 | | writer.WriteStartElement(reader.Prefix, MessageStrings.Body, Version.Envelope.Namespace); |
| | | 475 | | writer.WriteAttributes(reader, false); |
| | | 476 | | } |
| | | 477 | | } |
| | | 478 | | |
| | | 479 | | protected override MessageBuffer OnCreateBufferedCopy(int maxBufferSize) |
| | | 480 | | { |
| | | 481 | | if (_headers.ContainsOnlyBufferedMessageHeaders) |
| | | 482 | | { |
| | | 483 | | KeyValuePair<string, object>[] properties = new KeyValuePair<string, object>[Properties.Count]; |
| | | 484 | | ((ICollection<KeyValuePair<string, object>>)Properties).CopyTo(properties, 0); |
| | | 485 | | MessageData.EnableMultipleUsers(); |
| | | 486 | | bool[] understoodHeaders = null; |
| | | 487 | | if (_headers.UnderstoodHeaders.Modified) |
| | | 488 | | { |
| | | 489 | | understoodHeaders = new bool[_headers.Count]; |
| | | 490 | | for (int i = 0; i < _headers.Count; i++) |
| | | 491 | | { |
| | | 492 | | understoodHeaders[i] = _headers.IsUnderstood(i); |
| | | 493 | | } |
| | | 494 | | } |
| | | 495 | | return new BufferedMessageBuffer(MessageData, properties, understoodHeaders, _headers.UnderstoodHeaders. |
| | | 496 | | } |
| | | 497 | | else |
| | | 498 | | { |
| | | 499 | | if (_reader != null) |
| | | 500 | | { |
| | | 501 | | return OnCreateBufferedCopy(maxBufferSize, _reader.Quotas); |
| | | 502 | | } |
| | | 503 | | |
| | | 504 | | return OnCreateBufferedCopy(maxBufferSize, XmlDictionaryReaderQuotas.Max); |
| | | 505 | | } |
| | | 506 | | } |
| | | 507 | | |
| | | 508 | | protected override string OnGetBodyAttribute(string localName, string ns) |
| | | 509 | | { |
| | | 510 | | if (_bodyAttributes != null) |
| | | 511 | | { |
| | | 512 | | return XmlAttributeHolder.GetAttribute(_bodyAttributes, localName, ns); |
| | | 513 | | } |
| | | 514 | | |
| | | 515 | | using (XmlDictionaryReader reader = GetBufferedReaderAtBody()) |
| | | 516 | | { |
| | | 517 | | return reader.GetAttribute(localName, ns); |
| | | 518 | | } |
| | | 519 | | } |
| | | 520 | | } |
| | | 521 | | |
| | | 522 | | internal struct XmlAttributeHolder |
| | | 523 | | { |
| | 0 | 524 | | public static XmlAttributeHolder[] emptyArray = Array.Empty<XmlAttributeHolder>(); |
| | | 525 | | |
| | | 526 | | public XmlAttributeHolder(string prefix, string localName, string ns, string value) |
| | | 527 | | { |
| | 0 | 528 | | Prefix = prefix; |
| | 0 | 529 | | LocalName = localName; |
| | 0 | 530 | | NamespaceUri = ns; |
| | 0 | 531 | | Value = value; |
| | 0 | 532 | | } |
| | | 533 | | |
| | 0 | 534 | | public string Prefix { get; } |
| | | 535 | | |
| | 0 | 536 | | public string NamespaceUri { get; } |
| | | 537 | | |
| | 0 | 538 | | public string LocalName { get; } |
| | | 539 | | |
| | 0 | 540 | | public string Value { get; } |
| | | 541 | | |
| | | 542 | | public void WriteTo(XmlWriter writer) |
| | | 543 | | { |
| | 0 | 544 | | writer.WriteStartAttribute(Prefix, LocalName, NamespaceUri); |
| | 0 | 545 | | writer.WriteString(Value); |
| | 0 | 546 | | writer.WriteEndAttribute(); |
| | 0 | 547 | | } |
| | | 548 | | |
| | | 549 | | public static void WriteAttributes(XmlAttributeHolder[] attributes, XmlWriter writer) |
| | | 550 | | { |
| | 0 | 551 | | for (int i = 0; i < attributes.Length; i++) |
| | | 552 | | { |
| | 0 | 553 | | attributes[i].WriteTo(writer); |
| | | 554 | | } |
| | 0 | 555 | | } |
| | | 556 | | |
| | | 557 | | public static XmlAttributeHolder[] ReadAttributes(XmlDictionaryReader reader) |
| | | 558 | | { |
| | 0 | 559 | | int maxSizeOfHeaders = int.MaxValue; |
| | 0 | 560 | | return ReadAttributes(reader, ref maxSizeOfHeaders); |
| | | 561 | | } |
| | | 562 | | |
| | | 563 | | public static XmlAttributeHolder[] ReadAttributes(XmlDictionaryReader reader, ref int maxSizeOfHeaders) |
| | | 564 | | { |
| | 0 | 565 | | if (reader.AttributeCount == 0) |
| | | 566 | | { |
| | 0 | 567 | | return emptyArray; |
| | | 568 | | } |
| | | 569 | | |
| | 0 | 570 | | XmlAttributeHolder[] attributes = new XmlAttributeHolder[reader.AttributeCount]; |
| | 0 | 571 | | reader.MoveToFirstAttribute(); |
| | 0 | 572 | | for (int i = 0; i < attributes.Length; i++) |
| | | 573 | | { |
| | 0 | 574 | | string ns = reader.NamespaceURI; |
| | 0 | 575 | | string localName = reader.LocalName; |
| | 0 | 576 | | string prefix = reader.Prefix; |
| | 0 | 577 | | string value = string.Empty; |
| | 0 | 578 | | while (reader.ReadAttributeValue()) |
| | | 579 | | { |
| | 0 | 580 | | if (value.Length == 0) |
| | | 581 | | { |
| | 0 | 582 | | value = reader.Value; |
| | | 583 | | } |
| | | 584 | | else |
| | | 585 | | { |
| | 0 | 586 | | value += reader.Value; |
| | | 587 | | } |
| | | 588 | | } |
| | 0 | 589 | | Deduct(prefix, ref maxSizeOfHeaders); |
| | 0 | 590 | | Deduct(localName, ref maxSizeOfHeaders); |
| | 0 | 591 | | Deduct(ns, ref maxSizeOfHeaders); |
| | 0 | 592 | | Deduct(value, ref maxSizeOfHeaders); |
| | 0 | 593 | | attributes[i] = new XmlAttributeHolder(prefix, localName, ns, value); |
| | 0 | 594 | | reader.MoveToNextAttribute(); |
| | | 595 | | } |
| | 0 | 596 | | reader.MoveToElement(); |
| | 0 | 597 | | return attributes; |
| | | 598 | | } |
| | | 599 | | |
| | | 600 | | private static void Deduct(string s, ref int maxSizeOfHeaders) |
| | | 601 | | { |
| | 0 | 602 | | int byteCount = s.Length * sizeof(char); |
| | 0 | 603 | | if (byteCount > maxSizeOfHeaders) |
| | | 604 | | { |
| | 0 | 605 | | string message = SRCommon.XmlBufferQuotaExceeded; |
| | 0 | 606 | | Exception inner = new QuotaExceededException(message); |
| | 0 | 607 | | throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new CommunicationException(message, inner)); |
| | | 608 | | } |
| | 0 | 609 | | maxSizeOfHeaders -= byteCount; |
| | 0 | 610 | | } |
| | | 611 | | |
| | | 612 | | public static string GetAttribute(XmlAttributeHolder[] attributes, string localName, string ns) |
| | | 613 | | { |
| | 0 | 614 | | for (int i = 0; i < attributes.Length; i++) |
| | | 615 | | { |
| | 0 | 616 | | if (attributes[i].LocalName == localName && attributes[i].NamespaceUri == ns) |
| | | 617 | | { |
| | 0 | 618 | | return attributes[i].Value; |
| | | 619 | | } |
| | | 620 | | } |
| | | 621 | | |
| | 0 | 622 | | return null; |
| | | 623 | | } |
| | | 624 | | } |
| | | 625 | | } |