mcs/class/System.Web.Services/System.Web.Services.Description/SoapProtocolImporter.cs

   1 //
   2 // System.Web.Services.Description.SoapProtocolImporter.cs
   3 //
   4 // Author:
   5 //   Tim Coleman (tim@timcoleman.com)
   6 //   Lluis Sanchez Gual (lluis@ximian.com)
   7 //
   8 // Copyright (C) Tim Coleman, 2002
   9 //
  10
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31
  32 using System.CodeDom;
  33 using System.Web.Services;
  34 using System.Web.Services.Protocols;
  35 using System.Web.Services.Configuration;
  36 using System.Xml;
  37 using System.Xml.Schema;
  38 using System.Xml.Serialization;
  39 using System.Configuration;
  40 using System.Collections;
  41
  42 namespace System.Web.Services.Description {
  43         public class SoapProtocolImporter : ProtocolImporter {
  44
  45                 #region Fields
  46
  47                 SoapBinding soapBinding;
  48                 SoapCodeExporter soapExporter;
  49                 SoapSchemaImporter soapImporter;
  50                 XmlCodeExporter xmlExporter;
  51                 XmlSchemaImporter xmlImporter;
  52                 CodeIdentifiers memberIds;
  53                 ArrayList extensionImporters;
  54                 Hashtable headerVariables;
  55                 XmlSchemas xmlSchemas;
  56                 XmlSchemas soapSchemas;
  57
  58                 #endregion // Fields
  59
  60                 #region Constructors
  61
  62                 public SoapProtocolImporter ()
  63                 {
  64                         extensionImporters = ExtensionManager.BuildExtensionImporters ();
  65                 }
  66
  67                 void SetBinding (SoapBinding soapBinding)
  68                 {
  69                         this.soapBinding = soapBinding;
  70                 }
  71
  72                 #endregion // Constructors
  73
  74                 #region Properties
  75
  76                 public override string ProtocolName {
  77                         get { return "Soap"; }
  78                 }
  79
  80                 public SoapBinding SoapBinding {
  81                         get { return soapBinding; }
  82                 }
  83
  84                 public SoapCodeExporter SoapExporter {
  85                         get { return soapExporter; }
  86                 }
  87
  88                 public SoapSchemaImporter SoapImporter {
  89                         get { return soapImporter; }
  90                 }
  91
  92                 public XmlCodeExporter XmlExporter {
  93                         get { return xmlExporter; }
  94                 }
  95
  96                 public XmlSchemaImporter XmlImporter {
  97                         get { return xmlImporter; }
  98                 }
  99
 100                 #endregion // Properties
 101
 102                 #region Methods
 103
 104                 protected override CodeTypeDeclaration BeginClass ()
 105                 {
 106                         soapBinding = (SoapBinding) Binding.Extensions.Find (typeof(SoapBinding));
 107
 108                         CodeTypeDeclaration codeClass = new CodeTypeDeclaration (ClassName);
 109
 110                         string location = null;
 111                         SoapAddressBinding sab = (SoapAddressBinding) Port.Extensions.Find (typeof(SoapAddressBinding));
 112                         if (sab != null) location = sab.Location;
 113                         string url = GetServiceUrl (location);
 114
 115                         CodeTypeReference ctr = new CodeTypeReference ("System.Web.Services.Protocols.SoapHttpClientProtocol");
 116                         codeClass.BaseTypes.Add (ctr);
 117
 118                         CodeAttributeDeclaration att = new CodeAttributeDeclaration ("System.Web.Services.WebServiceBinding");
 119                         att.Arguments.Add (GetArg ("Name", Port.Name));
 120                         att.Arguments.Add (GetArg ("Namespace", Port.Binding.Namespace));
 121                         AddCustomAttribute (codeClass, att, true);
 122
 123                         CodeConstructor cc = new CodeConstructor ();
 124                         cc.Attributes = MemberAttributes.Public;
 125                         CodeExpression ce = new CodeFieldReferenceExpression (new CodeThisReferenceExpression(), "Url");
 126                         CodeAssignStatement cas = new CodeAssignStatement (ce, new CodePrimitiveExpression (url));
 127                         cc.Statements.Add (cas);
 128                         codeClass.Members.Add (cc);
 129
 130                         memberIds = new CodeIdentifiers ();
 131                         headerVariables = new Hashtable ();
 132                         return codeClass;
 133                 }
 134
 135                 protected override void BeginNamespace ()
 136                 {
 137                         xmlImporter = new XmlSchemaImporter (LiteralSchemas, ClassNames);
 138                         soapImporter = new SoapSchemaImporter (EncodedSchemas, ClassNames);
 139                         xmlExporter = new XmlCodeExporter (CodeNamespace, null);
 140                         soapExporter = new SoapCodeExporter (CodeNamespace, null);
 141                 }
 142
 143                 protected override void EndClass ()
 144                 {
 145                         SoapTransportImporter transportImporter = SoapTransportImporter.FindTransportImporter (soapBinding.Transport);
 146                         if (transportImporter == null) throw new InvalidOperationException ("Transport '" + soapBinding.Transport + "' not supported");
 147                         transportImporter.ImportContext = this;
 148                         transportImporter.ImportClass ();
 149
 150                         if (xmlExporter.IncludeMetadata.Count > 0 || soapExporter.IncludeMetadata.Count > 0)
 151                         {
 152                                 if (CodeTypeDeclaration.CustomAttributes == null)
 153                                         CodeTypeDeclaration.CustomAttributes = new CodeAttributeDeclarationCollection ();
 154                                 CodeTypeDeclaration.CustomAttributes.AddRange (xmlExporter.IncludeMetadata);
 155                                 CodeTypeDeclaration.CustomAttributes.AddRange (soapExporter.IncludeMetadata);
 156                         }
 157                 }
 158
 159                 protected override void EndNamespace ()
 160                 {
 161                 }
 162
 163                 protected override bool IsBindingSupported ()
 164                 {
 165                         return Binding.Extensions.Find (typeof(SoapBinding)) != null;
 166                 }
 167
 168                 [MonoTODO]
 169                 protected override bool IsOperationFlowSupported (OperationFlow flow)
 170                 {
 171                         throw new NotImplementedException ();
 172                 }
 173
 174                 [MonoTODO]
 175                 protected virtual bool IsSoapEncodingPresent (string uriList)
 176                 {
 177                         throw new NotImplementedException ();
 178                 }
 179
 180                 protected override CodeMemberMethod GenerateMethod ()
 181                 {
 182                         try
 183                         {
 184                                 SoapOperationBinding soapOper = OperationBinding.Extensions.Find (typeof (SoapOperationBinding)) as SoapOperationBinding;
 185                                 if (soapOper == null) throw new InvalidOperationException ("Soap operation binding not found");
 186
 187                                 SoapBindingStyle style = soapOper.Style != SoapBindingStyle.Default ? soapOper.Style : soapBinding.Style;
 188
 189                                 SoapBodyBinding isbb = null;
 190                                 XmlMembersMapping inputMembers = null;
 191
 192                                 isbb = OperationBinding.Input.Extensions.Find (typeof(SoapBodyBinding)) as SoapBodyBinding;
 193                                 if (isbb == null) throw new InvalidOperationException ("Soap body binding not found");
 194
 195                                 inputMembers = ImportMembersMapping (InputMessage, isbb, style, false);
 196                                 if (inputMembers == null) throw new InvalidOperationException ("Input message not declared");
 197
 198                                 // If OperationBinding.Output is null, it is an OneWay operation
 199
 200                                 SoapBodyBinding osbb = null;
 201                                 XmlMembersMapping outputMembers = null;
 202
 203                                 if (OperationBinding.Output != null) {
 204                                         osbb = OperationBinding.Output.Extensions.Find (typeof(SoapBodyBinding)) as SoapBodyBinding;
 205                                         if (osbb == null) throw new InvalidOperationException ("Soap body binding not found");
 206
 207                                         outputMembers = ImportMembersMapping (OutputMessage, osbb, style, true);
 208                                         if (outputMembers == null) throw new InvalidOperationException ("Output message not declared");
 209                                 }
 210
 211                                 CodeMemberMethod met = GenerateMethod (memberIds, soapOper, isbb, inputMembers, outputMembers);
 212
 213                                 if (isbb.Use == SoapBindingUse.Literal)
 214                                         xmlExporter.ExportMembersMapping (inputMembers);
 215                                 else
 216                                         soapExporter.ExportMembersMapping (inputMembers);
 217
 218                                 if (osbb != null) {
 219                                         if (osbb.Use == SoapBindingUse.Literal)
 220                                                 xmlExporter.ExportMembersMapping (outputMembers);
 221                                         else
 222                                                 soapExporter.ExportMembersMapping (outputMembers);
 223                                 }
 224
 225                                 foreach (SoapExtensionImporter eximporter in extensionImporters)
 226                                 {
 227                                         eximporter.ImportContext = this;
 228                                         eximporter.ImportMethod (met.CustomAttributes);
 229                                 }
 230
 231                                 return met;
 232                         }
 233                         catch (InvalidOperationException ex)
 234                         {
 235                                 UnsupportedOperationBindingWarning (ex.Message);
 236                                 return null;
 237                         }
 238                 }
 239
 240                 XmlMembersMapping ImportMembersMapping (Message msg, SoapBodyBinding sbb, SoapBindingStyle style, bool output)
 241                 {
 242                         string elemName = Operation.Name;
 243                         if (output) elemName += "Response";
 244
 245                         if (msg.Parts.Count == 1 && msg.Parts[0].Name == "parameters")
 246                         {
 247                                 // Wrapped parameter style
 248
 249                                 MessagePart part = msg.Parts[0];
 250                                 if (sbb.Use == SoapBindingUse.Encoded)
 251                                 {
 252                                         SoapSchemaMember ssm = new SoapSchemaMember ();
 253                                         ssm.MemberName = part.Name;
 254                                         ssm.MemberType = part.Type;
 255                                         return soapImporter.ImportMembersMapping (elemName, part.Type.Namespace, ssm);
 256                                 }
 257                                 else
 258                                         return xmlImporter.ImportMembersMapping (part.Element);
 259                         }
 260                         else
 261                         {
 262                                 if (sbb.Use == SoapBindingUse.Encoded)
 263                                 {
 264                                         SoapSchemaMember[] mems = new SoapSchemaMember [msg.Parts.Count];
 265                                         for (int n=0; n<mems.Length; n++)
 266                                         {
 267                                                 SoapSchemaMember mem = new SoapSchemaMember();
 268                                                 mem.MemberName = msg.Parts[n].Name;
 269                                                 mem.MemberType = msg.Parts[n].Type;
 270                                                 mems[n] = mem;
 271                                         }
 272
 273                                         // Rpc messages always have a wrapping element
 274                                         if (style == SoapBindingStyle.Rpc)
 275                                                 return soapImporter.ImportMembersMapping (elemName, sbb.Namespace, mems, true);
 276                                         else
 277                                                 return soapImporter.ImportMembersMapping ("", "", mems, false);
 278                                 }
 279                                 else
 280                                 {
 281                                         if (style == SoapBindingStyle.Rpc)
 282                                                 throw new InvalidOperationException ("The combination of style=rpc with use=literal is not supported");
 283
 284                                         if (msg.Parts.Count == 1 && msg.Parts[0].Type != XmlQualifiedName.Empty)
 285                                                 return xmlImporter.ImportAnyType (msg.Parts[0].Type, null);
 286                                         else
 287                                         {
 288                                                 XmlQualifiedName[] pnames = new XmlQualifiedName [msg.Parts.Count];
 289                                                 for (int n=0; n<pnames.Length; n++)
 290                                                         pnames[n] = msg.Parts[n].Element;
 291                                                 return xmlImporter.ImportMembersMapping (pnames);
 292                                         }
 293                                 }
 294                         }
 295                 }
 296
 297                 CodeMemberMethod GenerateMethod (CodeIdentifiers memberIds, SoapOperationBinding soapOper, SoapBodyBinding bodyBinding, XmlMembersMapping inputMembers, XmlMembersMapping outputMembers)
 298                 {
 299                         CodeIdentifiers pids = new CodeIdentifiers ();
 300                         CodeMemberMethod method = new CodeMemberMethod ();
 301                         CodeMemberMethod methodBegin = new CodeMemberMethod ();
 302                         CodeMemberMethod methodEnd = new CodeMemberMethod ();
 303                         method.Attributes = MemberAttributes.Public;
 304                         methodBegin.Attributes = MemberAttributes.Public;
 305                         methodEnd.Attributes = MemberAttributes.Public;
 306
 307                         SoapBindingStyle style = soapOper.Style != SoapBindingStyle.Default ? soapOper.Style : soapBinding.Style;
 308
 309                         // Find unique names for temporary variables
 310
 311                         for (int n=0; n<inputMembers.Count; n++)
 312                                 pids.AddUnique (inputMembers[n].MemberName, inputMembers[n]);
 313
 314                         if (outputMembers != null)
 315                                 for (int n=0; n<outputMembers.Count; n++)
 316                                         pids.AddUnique (outputMembers[n].MemberName, outputMembers[n]);
 317
 318                         string varAsyncResult = pids.AddUnique ("asyncResult","asyncResult");
 319                         string varResults = pids.AddUnique ("results","results");
 320                         string varCallback = pids.AddUnique ("callback","callback");
 321                         string varAsyncState = pids.AddUnique ("asyncState","asyncState");
 322
 323                         string messageName = memberIds.AddUnique(CodeIdentifier.MakeValid(Operation.Name),method);
 324
 325                         method.Name = CodeIdentifier.MakeValid(Operation.Name);
 326                         if (method.Name == ClassName) method.Name += "1";
 327                         methodBegin.Name = memberIds.AddUnique(CodeIdentifier.MakeValid("Begin" + method.Name),method);
 328                         methodEnd.Name = memberIds.AddUnique(CodeIdentifier.MakeValid("End" + method.Name),method);
 329
 330                         method.ReturnType = new CodeTypeReference (typeof(void));
 331                         methodEnd.ReturnType = new CodeTypeReference (typeof(void));
 332                         methodEnd.Parameters.Add (new CodeParameterDeclarationExpression (typeof (IAsyncResult),varAsyncResult));
 333
 334                         CodeExpression[] paramArray = new CodeExpression [inputMembers.Count];
 335                         CodeParameterDeclarationExpression[] outParams = new CodeParameterDeclarationExpression [outputMembers != null ? outputMembers.Count : 0];
 336
 337                         for (int n=0; n<inputMembers.Count; n++)
 338                         {
 339                                 CodeParameterDeclarationExpression param = GenerateParameter (inputMembers[n], FieldDirection.In);
 340                                 method.Parameters.Add (param);
 341                                 GenerateMemberAttributes (inputMembers, inputMembers[n], bodyBinding.Use, param);
 342                                 methodBegin.Parameters.Add (GenerateParameter (inputMembers[n], FieldDirection.In));
 343                                 paramArray [n] = new CodeVariableReferenceExpression (param.Name);
 344                         }
 345
 346                         if (outputMembers != null)
 347                         {
 348                                 bool hasReturn = false;
 349                                 for (int n=0; n<outputMembers.Count; n++)
 350                                 {
 351                                         CodeParameterDeclarationExpression cpd = GenerateParameter (outputMembers[n], FieldDirection.Out);
 352                                         outParams [n] = cpd;
 353
 354                                         bool found = false;
 355                                         foreach (CodeParameterDeclarationExpression ip in method.Parameters)
 356                                         {
 357                                                 if (ip.Name == cpd.Name && ip.Type.BaseType == cpd.Type.BaseType) {
 358                                                         ip.Direction = FieldDirection.Ref;
 359                                                         methodEnd.Parameters.Add (GenerateParameter (outputMembers[n], FieldDirection.Out));
 360                                                         found = true;
 361                                                         break;
 362                                                 }
 363                                         }
 364
 365                                         if (found) continue;
 366
 367                                         if (!hasReturn)
 368                                         {
 369                                                 hasReturn = true;
 370                                                 method.ReturnType = cpd.Type;
 371                                                 methodEnd.ReturnType = cpd.Type;
 372                                                 GenerateReturnAttributes (outputMembers, outputMembers[n], bodyBinding.Use, method);
 373                                                 outParams [n] = null;
 374                                                 continue;
 375                                         }
 376
 377                                         method.Parameters.Add (cpd);
 378                                         GenerateMemberAttributes (outputMembers, outputMembers[n], bodyBinding.Use, cpd);
 379                                         methodEnd.Parameters.Add (GenerateParameter (outputMembers[n], FieldDirection.Out));
 380                                 }
 381                         }
 382
 383                         methodBegin.Parameters.Add (new CodeParameterDeclarationExpression (typeof (AsyncCallback),varCallback));
 384                         methodBegin.Parameters.Add (new CodeParameterDeclarationExpression (typeof (object),varAsyncState));
 385                         methodBegin.ReturnType = new CodeTypeReference (typeof(IAsyncResult));
 386
 387                         // Array of input parameters
 388
 389                         CodeArrayCreateExpression methodParams;
 390                         if (paramArray.Length > 0)
 391                                 methodParams = new CodeArrayCreateExpression (typeof(object), paramArray);
 392                         else
 393                                 methodParams = new CodeArrayCreateExpression (typeof(object), 0);
 394
 395                         // Assignment of output parameters
 396
 397                         CodeStatementCollection outAssign = new CodeStatementCollection ();
 398                         CodeVariableReferenceExpression arrVar = new CodeVariableReferenceExpression (varResults);
 399                         for (int n=0; n<outParams.Length; n++)
 400                         {
 401                                 CodeExpression index = new CodePrimitiveExpression (n);
 402                                 if (outParams[n] == null)
 403                                 {
 404                                         CodeExpression res = new CodeCastExpression (method.ReturnType, new CodeArrayIndexerExpression (arrVar, index));
 405                                         outAssign.Add (new CodeMethodReturnStatement (res));
 406                                 }
 407                                 else
 408                                 {
 409                                         CodeExpression res = new CodeCastExpression (outParams[n].Type, new CodeArrayIndexerExpression (arrVar, index));
 410                                         CodeExpression var = new CodeVariableReferenceExpression (outParams[n].Name);
 411                                         outAssign.Insert (0, new CodeAssignStatement (var, res));
 412                                 }
 413                         }
 414
 415                         // Invoke call
 416
 417                         CodeThisReferenceExpression ethis = new CodeThisReferenceExpression();
 418                         CodePrimitiveExpression varMsgName = new CodePrimitiveExpression (messageName);
 419                         CodeMethodInvokeExpression inv;
 420                         CodeVariableDeclarationStatement dec;
 421
 422                         inv = new CodeMethodInvokeExpression (ethis, "Invoke", varMsgName, methodParams);
 423                         if (outputMembers != null && outputMembers.Count > 0)
 424                         {
 425                                 dec = new CodeVariableDeclarationStatement (typeof(object[]), varResults, inv);
 426                                 method.Statements.Add (dec);
 427                                 method.Statements.AddRange (outAssign);
 428                         }
 429                         else
 430                                 method.Statements.Add (inv);
 431
 432                         // Begin Invoke Call
 433
 434                         CodeExpression expCallb = new CodeVariableReferenceExpression (varCallback);
 435                         CodeExpression expAsyncs = new CodeVariableReferenceExpression (varAsyncState);
 436                         inv = new CodeMethodInvokeExpression (ethis, "BeginInvoke", varMsgName, methodParams, expCallb, expAsyncs);
 437                         methodBegin.Statements.Add (new CodeMethodReturnStatement (inv));
 438
 439                         // End Invoke call
 440
 441                         CodeExpression varAsyncr = new CodeVariableReferenceExpression (varAsyncResult);
 442                         inv = new CodeMethodInvokeExpression (ethis, "EndInvoke", varAsyncr);
 443                         if (outputMembers != null && outputMembers.Count > 0)
 444                         {
 445                                 dec = new CodeVariableDeclarationStatement (typeof(object[]), varResults, inv);
 446                                 methodEnd.Statements.Add (dec);
 447                                 methodEnd.Statements.AddRange (outAssign);
 448                         }
 449                         else
 450                                 methodEnd.Statements.Add (inv);
 451
 452                         // Attributes
 453
 454                         ImportHeaders (method);
 455
 456                         CodeAttributeDeclaration att = new CodeAttributeDeclaration ("System.Web.Services.WebMethodAttribute");
 457                         if (messageName != method.Name) att.Arguments.Add (GetArg ("MessageName",messageName));
 458                         AddCustomAttribute (method, att, false);
 459
 460                         if (style == SoapBindingStyle.Rpc)
 461                         {
 462                                 att = new CodeAttributeDeclaration ("System.Web.Services.Protocols.SoapRpcMethodAttribute");
 463                                 att.Arguments.Add (GetArg (soapOper.SoapAction));
 464                                 if (inputMembers.ElementName != method.Name) att.Arguments.Add (GetArg ("RequestElementName", inputMembers.ElementName));
 465                                 if (outputMembers != null && outputMembers.ElementName != (method.Name + "Response")) att.Arguments.Add (GetArg ("ResponseElementName", outputMembers.ElementName));
 466                                 att.Arguments.Add (GetArg ("RequestNamespace", inputMembers.Namespace));
 467                                 if (outputMembers != null) att.Arguments.Add (GetArg ("ResponseNamespace", outputMembers.Namespace));
 468                                 if (outputMembers == null) att.Arguments.Add (GetArg ("OneWay", true));
 469                         }
 470                         else
 471                         {
 472                                 if (outputMembers != null && (inputMembers.ElementName == "" && outputMembers.ElementName != "" ||
 473                                         inputMembers.ElementName != "" && outputMembers.ElementName == ""))
 474                                         throw new InvalidOperationException ("Parameter style is not the same for the input message and output message");
 475
 476                                 att = new CodeAttributeDeclaration ("System.Web.Services.Protocols.SoapDocumentMethodAttribute");
 477                                 att.Arguments.Add (GetArg (soapOper.SoapAction));
 478                                 if (inputMembers.ElementName != "") {
 479                                         if (inputMembers.ElementName != method.Name) att.Arguments.Add (GetArg ("RequestElementName", inputMembers.ElementName));
 480                                         if (outputMembers != null && outputMembers.ElementName != (method.Name + "Response")) att.Arguments.Add (GetArg ("ResponseElementName", outputMembers.ElementName));
 481                                         att.Arguments.Add (GetArg ("RequestNamespace", inputMembers.Namespace));
 482                                         if (outputMembers != null) att.Arguments.Add (GetArg ("ResponseNamespace", outputMembers.Namespace));
 483                                         att.Arguments.Add (GetEnumArg ("ParameterStyle", "System.Web.Services.Protocols.SoapParameterStyle", "Wrapped"));
 484                                 }
 485                                 else
 486                                         att.Arguments.Add (GetEnumArg ("ParameterStyle", "System.Web.Services.Protocols.SoapParameterStyle", "Bare"));
 487
 488                                 if (outputMembers == null) att.Arguments.Add (GetArg ("OneWay", true));
 489
 490                                 att.Arguments.Add (GetEnumArg ("Use", "System.Web.Services.Description.SoapBindingUse", bodyBinding.Use.ToString()));
 491                         }
 492
 493                         AddCustomAttribute (method, att, true);
 494
 495                         CodeTypeDeclaration.Members.Add (method);
 496                         CodeTypeDeclaration.Members.Add (methodBegin);
 497                         CodeTypeDeclaration.Members.Add (methodEnd);
 498
 499                         return method;
 500                 }
 501
 502                 CodeParameterDeclarationExpression GenerateParameter (XmlMemberMapping member, FieldDirection dir)
 503                 {
 504                         CodeParameterDeclarationExpression par = new CodeParameterDeclarationExpression (member.TypeFullName, member.MemberName);
 505                         par.Direction = dir;
 506                         return par;
 507                 }
 508
 509                 void GenerateMemberAttributes (XmlMembersMapping members, XmlMemberMapping member, SoapBindingUse use, CodeParameterDeclarationExpression param)
 510                 {
 511                         if (use == SoapBindingUse.Literal)
 512                                 xmlExporter.AddMappingMetadata (param.CustomAttributes, member, members.Namespace);
 513                         else
 514                                 soapExporter.AddMappingMetadata (param.CustomAttributes, member);
 515                 }
 516
 517                 void GenerateReturnAttributes (XmlMembersMapping members, XmlMemberMapping member, SoapBindingUse use, CodeMemberMethod method)
 518                 {
 519                         if (use == SoapBindingUse.Literal)
 520                                 xmlExporter.AddMappingMetadata (method.ReturnTypeCustomAttributes, member, members.Namespace, (member.ElementName != method.Name + "Result"));
 521                         else
 522                                 soapExporter.AddMappingMetadata (method.ReturnTypeCustomAttributes, member, (member.ElementName != method.Name + "Result"));
 523                 }
 524
 525                 void ImportHeaders (CodeMemberMethod method)
 526                 {
 527                         foreach (object ob in OperationBinding.Input.Extensions)
 528                         {
 529                                 SoapHeaderBinding hb = ob as SoapHeaderBinding;
 530                                 if (hb == null) continue;
 531                                 if (HasHeader (OperationBinding.Output, hb))
 532                                         ImportHeader (method, hb, SoapHeaderDirection.In | SoapHeaderDirection.Out);
 533                                 else
 534                                         ImportHeader (method, hb, SoapHeaderDirection.In);
 535                         }
 536
 537                         if (OperationBinding.Output == null) return;
 538
 539                         foreach (object ob in OperationBinding.Output.Extensions)
 540                         {
 541                                 SoapHeaderBinding hb = ob as SoapHeaderBinding;
 542                                 if (hb == null) continue;
 543                                 if (!HasHeader (OperationBinding.Input, hb))
 544                                         ImportHeader (method, hb, SoapHeaderDirection.Out);
 545                         }
 546                 }
 547
 548                 bool HasHeader (MessageBinding msg, SoapHeaderBinding hb)
 549                 {
 550                         if (msg == null) return false;
 551
 552                         foreach (object ob in msg.Extensions)
 553                         {
 554                                 SoapHeaderBinding mhb = ob as SoapHeaderBinding;
 555                                 if ((mhb != null) && (mhb.Message == hb.Message) && (mhb.Part == hb.Part))
 556                                         return true;
 557                         }
 558                         return false;
 559                 }
 560
 561                 void ImportHeader (CodeMemberMethod method, SoapHeaderBinding hb, SoapHeaderDirection direction)
 562                 {
 563                         Message msg = ServiceDescriptions.GetMessage (hb.Message);
 564                         if (msg == null) throw new InvalidOperationException ("Message " + hb.Message + " not found");
 565                         MessagePart part = msg.Parts [hb.Part];
 566                         if (part == null) throw new InvalidOperationException ("Message part " + hb.Part + " not found in message " + hb.Message);
 567
 568                         XmlTypeMapping map;
 569                         if (hb.Use == SoapBindingUse.Literal)
 570                         {
 571                                 map = xmlImporter.ImportDerivedTypeMapping (part.Element, typeof (SoapHeader));
 572                                 xmlExporter.ExportTypeMapping (map);
 573                         }
 574                         else
 575                         {
 576                                 map = soapImporter.ImportDerivedTypeMapping (part.Type, typeof (SoapHeader), true);
 577                                 soapExporter.ExportTypeMapping (map);
 578                         }
 579
 580                         bool required = false;
 581
 582                         string varName = headerVariables [map] as string;
 583                         if (varName == null)
 584                         {
 585                                 varName = memberIds.AddUnique(CodeIdentifier.MakeValid (map.TypeName + "Value"),hb);
 586                                 headerVariables.Add (map, varName);
 587                                 CodeMemberField codeField = new CodeMemberField (map.TypeFullName, varName);
 588                                 codeField.Attributes = MemberAttributes.Public;
 589                                 CodeTypeDeclaration.Members.Add (codeField);
 590                         }
 591
 592                         CodeAttributeDeclaration att = new CodeAttributeDeclaration ("System.Web.Services.Protocols.SoapHeaderAttribute");
 593                         att.Arguments.Add (GetArg (varName));
 594                         att.Arguments.Add (GetArg ("Required", required));
 595                         if (direction != SoapHeaderDirection.In) att.Arguments.Add (GetEnumArg ("Direction", "System.Web.Services.Protocols.SoapHeaderDirection", direction.ToString ()));
 596                         AddCustomAttribute (method, att, true);
 597                 }
 598
 599                 #endregion
 600         }
 601 }