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
 112                         if (Port != null) {
 113                                 SoapAddressBinding sab = (SoapAddressBinding) Port.Extensions.Find (typeof(SoapAddressBinding));
 114                                 if (sab != null) location = sab.Location;
 115                         }
 116
 117                         string namspace = (Port != null ? Port.Binding.Namespace : Binding.ServiceDescription.TargetNamespace);
 118                         string name = (Port != null ? Port.Name : Binding.Name);
 119
 120                         if (Style == ServiceDescriptionImportStyle.Client) {
 121                                 CodeTypeReference ctr = new CodeTypeReference ("System.Web.Services.Protocols.SoapHttpClientProtocol");
 122                                 codeClass.BaseTypes.Add (ctr);
 123                         }
 124                         else {
 125                                 CodeTypeReference ctr = new CodeTypeReference ("System.Web.Services.WebService");
 126                                 codeClass.BaseTypes.Add (ctr);
 127                                 CodeAttributeDeclaration attws = new CodeAttributeDeclaration ("System.Web.Services.WebServiceAttribute");
 128                                 attws.Arguments.Add (GetArg ("Namespace", namspace));
 129                                 AddCustomAttribute (codeClass, attws, true);
 130                         }
 131
 132                         CodeAttributeDeclaration att = new CodeAttributeDeclaration ("System.Web.Services.WebServiceBinding");
 133                         att.Arguments.Add (GetArg ("Name", name));
 134                         att.Arguments.Add (GetArg ("Namespace", namspace));
 135                         AddCustomAttribute (codeClass, att, true);
 136
 137                         if (Style == ServiceDescriptionImportStyle.Client) {
 138                                 CodeConstructor cc = new CodeConstructor ();
 139                                 cc.Attributes = MemberAttributes.Public;
 140                                 GenerateServiceUrl (location, cc.Statements);
 141                                 codeClass.Members.Add (cc);
 142                         }
 143
 144                         memberIds = new CodeIdentifiers ();
 145                         headerVariables = new Hashtable ();
 146                         return codeClass;
 147                 }
 148
 149                 protected override void BeginNamespace ()
 150                 {
 151 #if NET_2_0
 152                         xmlImporter = new XmlSchemaImporter (LiteralSchemas, base.CodeGenerationOptions, base.CodeGenerator, base.ImportContext);
 153                         soapImporter = new SoapSchemaImporter (EncodedSchemas, base.CodeGenerationOptions, base.CodeGenerator, base.ImportContext);
 154                         xmlExporter = new XmlCodeExporter (CodeNamespace, null, base.CodeGenerator, base.CodeGenerationOptions, null);
 155                         soapExporter = new SoapCodeExporter (CodeNamespace, null, base.CodeGenerator, base.CodeGenerationOptions, null);
 156 #else
 157                         xmlImporter = new XmlSchemaImporter (LiteralSchemas, ClassNames);
 158                         soapImporter = new SoapSchemaImporter (EncodedSchemas, ClassNames);
 159                         xmlExporter = new XmlCodeExporter (CodeNamespace, null);
 160                         soapExporter = new SoapCodeExporter (CodeNamespace, null);
 161 #endif
 162                 }
 163
 164                 protected override void EndClass ()
 165                 {
 166                         SoapTransportImporter transportImporter = SoapTransportImporter.FindTransportImporter (soapBinding.Transport);
 167                         if (transportImporter == null) throw new InvalidOperationException ("Transport '" + soapBinding.Transport + "' not supported");
 168                         transportImporter.ImportContext = this;
 169                         transportImporter.ImportClass ();
 170
 171                         if (xmlExporter.IncludeMetadata.Count > 0 || soapExporter.IncludeMetadata.Count > 0)
 172                         {
 173                                 if (CodeTypeDeclaration.CustomAttributes == null)
 174                                         CodeTypeDeclaration.CustomAttributes = new CodeAttributeDeclarationCollection ();
 175                                 CodeTypeDeclaration.CustomAttributes.AddRange (xmlExporter.IncludeMetadata);
 176                                 CodeTypeDeclaration.CustomAttributes.AddRange (soapExporter.IncludeMetadata);
 177                         }
 178                 }
 179
 180                 protected override void EndNamespace ()
 181                 {
 182                 }
 183
 184                 protected override bool IsBindingSupported ()
 185                 {
 186                         return Binding.Extensions.Find (typeof(SoapBinding)) != null;
 187                 }
 188
 189                 [MonoTODO]
 190                 protected override bool IsOperationFlowSupported (OperationFlow flow)
 191                 {
 192                         throw new NotImplementedException ();
 193                 }
 194
 195                 static readonly char [] whitespaces = new char [] {' ', '\t', '\n', '\r'};
 196
 197                 protected virtual bool IsSoapEncodingPresent (string uriList)
 198                 {
 199                         foreach (string s in uriList.Split (whitespaces))
 200                                 if (s == "http://schemas.xmlsoap.org/soap/encoding/")
 201                                         return true;
 202                         return false;
 203                 }
 204
 205                 protected override CodeMemberMethod GenerateMethod ()
 206                 {
 207                         try
 208                         {
 209                                 SoapOperationBinding soapOper = OperationBinding.Extensions.Find (typeof (SoapOperationBinding)) as SoapOperationBinding;
 210                                 if (soapOper == null) throw new InvalidOperationException ("Soap operation binding not found");
 211
 212                                 SoapBindingStyle style = soapOper.Style != SoapBindingStyle.Default ? soapOper.Style : soapBinding.Style;
 213
 214                                 SoapBodyBinding isbb = null;
 215                                 XmlMembersMapping inputMembers = null;
 216
 217                                 bool isWrapped = CheckIsWrapped ();
 218
 219                                 isbb = OperationBinding.Input.Extensions.Find (typeof(SoapBodyBinding)) as SoapBodyBinding;
 220                                 if (isbb == null) throw new InvalidOperationException ("Soap body binding not found");
 221
 222                                 inputMembers = ImportMembersMapping (InputMessage, isbb, style, false, isWrapped);
 223                                 if (inputMembers == null) throw new InvalidOperationException ("Input message not declared");
 224
 225                                 // If OperationBinding.Output is null, it is an OneWay operation
 226
 227                                 SoapBodyBinding osbb = null;
 228                                 XmlMembersMapping outputMembers = null;
 229
 230                                 if (OperationBinding.Output != null) {
 231                                         osbb = OperationBinding.Output.Extensions.Find (typeof(SoapBodyBinding)) as SoapBodyBinding;
 232                                         if (osbb == null) throw new InvalidOperationException ("Soap body binding not found");
 233
 234                                         outputMembers = ImportMembersMapping (OutputMessage, osbb, style, true, isWrapped);
 235                                         if (outputMembers == null) throw new InvalidOperationException ("Output message not declared");
 236                                 }
 237
 238                                 CodeMemberMethod met = GenerateMethod (memberIds, soapOper, isbb, inputMembers, outputMembers);
 239
 240                                 if (isbb.Use == SoapBindingUse.Literal)
 241                                         xmlExporter.ExportMembersMapping (inputMembers);
 242                                 else
 243                                         soapExporter.ExportMembersMapping (inputMembers);
 244
 245                                 if (osbb != null) {
 246                                         if (osbb.Use == SoapBindingUse.Literal)
 247                                                 xmlExporter.ExportMembersMapping (outputMembers);
 248                                         else
 249                                                 soapExporter.ExportMembersMapping (outputMembers);
 250                                 }
 251
 252                                 foreach (SoapExtensionImporter eximporter in extensionImporters)
 253                                 {
 254                                         eximporter.ImportContext = this;
 255                                         eximporter.ImportMethod (met.CustomAttributes);
 256                                 }
 257
 258                                 return met;
 259                         }
 260                         catch (InvalidOperationException ex)
 261                         {
 262                                 UnsupportedOperationBindingWarning (ex.Message);
 263                                 return null;
 264                         }
 265                 }
 266
 267                 bool CheckIsWrapped ()
 268                 {
 269                         return (OutputMessage == null || (OutputMessage.Parts.Count == 1 && OutputMessage.Parts[0].Name == "parameters")) &&
 270                                    (InputMessage == null || (InputMessage.Parts.Count == 1 && InputMessage.Parts[0].Name == "parameters"));
 271                 }
 272
 273                 XmlMembersMapping ImportMembersMapping (Message msg, SoapBodyBinding sbb, SoapBindingStyle style, bool output, bool wrapped)
 274                 {
 275                         string elemName = Operation.Name;
 276                         if (output) elemName += "Response";
 277
 278                         if (wrapped)
 279                         {
 280                                 // Wrapped parameter style
 281
 282                                 MessagePart part = msg.Parts[0];
 283                                 if (sbb.Use == SoapBindingUse.Encoded)
 284                                 {
 285                                         SoapSchemaMember ssm = new SoapSchemaMember ();
 286                                         ssm.MemberName = part.Name;
 287                                         ssm.MemberType = part.Type;
 288                                         return soapImporter.ImportMembersMapping (elemName, part.Type.Namespace, ssm);
 289                                 }
 290                                 else
 291                                         return xmlImporter.ImportMembersMapping (part.Element);
 292                         }
 293                         else
 294                         {
 295                                 if (sbb.Use == SoapBindingUse.Encoded)
 296                                 {
 297                                         SoapSchemaMember[] mems = new SoapSchemaMember [msg.Parts.Count];
 298                                         for (int n=0; n<mems.Length; n++)
 299                                         {
 300                                                 SoapSchemaMember mem = new SoapSchemaMember();
 301                                                 mem.MemberName = msg.Parts[n].Name;
 302                                                 mem.MemberType = msg.Parts[n].Type;
 303                                                 mems[n] = mem;
 304                                         }
 305
 306                                         // Rpc messages always have a wrapping element
 307                                         if (style == SoapBindingStyle.Rpc)
 308                                                 return soapImporter.ImportMembersMapping (elemName, sbb.Namespace, mems, true);
 309                                         else
 310                                                 return soapImporter.ImportMembersMapping ("", "", mems, false);
 311                                 }
 312                                 else
 313                                 {
 314                                         if (style == SoapBindingStyle.Rpc)
 315                                                 throw new InvalidOperationException ("The combination of style=rpc with use=literal is not supported");
 316
 317                                         if (msg.Parts.Count == 1 && msg.Parts[0].Type != XmlQualifiedName.Empty)
 318                                                 return xmlImporter.ImportAnyType (msg.Parts[0].Type, null);
 319                                         else
 320                                         {
 321                                                 XmlQualifiedName[] pnames = new XmlQualifiedName [msg.Parts.Count];
 322                                                 for (int n=0; n<pnames.Length; n++)
 323                                                         pnames[n] = msg.Parts[n].Element;
 324                                                 return xmlImporter.ImportMembersMapping (pnames);
 325                                         }
 326                                 }
 327                         }
 328                 }
 329
 330                 CodeMemberMethod GenerateMethod (CodeIdentifiers memberIds, SoapOperationBinding soapOper, SoapBodyBinding bodyBinding, XmlMembersMapping inputMembers, XmlMembersMapping outputMembers)
 331                 {
 332                         CodeIdentifiers pids = new CodeIdentifiers ();
 333                         CodeMemberMethod method = new CodeMemberMethod ();
 334                         CodeMemberMethod methodBegin = new CodeMemberMethod ();
 335                         CodeMemberMethod methodEnd = new CodeMemberMethod ();
 336                         method.Attributes = MemberAttributes.Public | MemberAttributes.Final;
 337                         methodBegin.Attributes = MemberAttributes.Public | MemberAttributes.Final;
 338                         methodEnd.Attributes = MemberAttributes.Public | MemberAttributes.Final;
 339
 340                         SoapBindingStyle style = soapOper.Style != SoapBindingStyle.Default ? soapOper.Style : soapBinding.Style;
 341
 342                         // Find unique names for temporary variables
 343
 344                         for (int n=0; n<inputMembers.Count; n++)
 345                                 pids.AddUnique (inputMembers[n].MemberName, inputMembers[n]);
 346
 347                         if (outputMembers != null)
 348                                 for (int n=0; n<outputMembers.Count; n++)
 349                                         pids.AddUnique (outputMembers[n].MemberName, outputMembers[n]);
 350
 351                         string varAsyncResult = pids.AddUnique ("asyncResult","asyncResult");
 352                         string varResults = pids.AddUnique ("results","results");
 353                         string varCallback = pids.AddUnique ("callback","callback");
 354                         string varAsyncState = pids.AddUnique ("asyncState","asyncState");
 355
 356                         string messageName = memberIds.AddUnique(CodeIdentifier.MakeValid(Operation.Name),method);
 357
 358                         method.Name = CodeIdentifier.MakeValid(Operation.Name);
 359                         if (method.Name == ClassName) method.Name += "1";
 360                         methodBegin.Name = memberIds.AddUnique(CodeIdentifier.MakeValid("Begin" + method.Name),method);
 361                         methodEnd.Name = memberIds.AddUnique(CodeIdentifier.MakeValid("End" + method.Name),method);
 362
 363                         method.ReturnType = new CodeTypeReference (typeof(void));
 364                         methodEnd.ReturnType = new CodeTypeReference (typeof(void));
 365                         methodEnd.Parameters.Add (new CodeParameterDeclarationExpression (typeof (IAsyncResult),varAsyncResult));
 366
 367                         CodeExpression[] paramArray = new CodeExpression [inputMembers.Count];
 368                         CodeParameterDeclarationExpression[] outParams = new CodeParameterDeclarationExpression [outputMembers != null ? outputMembers.Count : 0];
 369
 370                         for (int n=0; n<inputMembers.Count; n++)
 371                         {
 372                                 CodeParameterDeclarationExpression param = GenerateParameter (inputMembers[n], FieldDirection.In);
 373                                 method.Parameters.Add (param);
 374                                 GenerateMemberAttributes (inputMembers, inputMembers[n], bodyBinding.Use, param);
 375                                 methodBegin.Parameters.Add (GenerateParameter (inputMembers[n], FieldDirection.In));
 376                                 paramArray [n] = new CodeVariableReferenceExpression (param.Name);
 377                         }
 378
 379                         if (outputMembers != null)
 380                         {
 381                                 bool hasReturn = false;
 382                                 for (int n=0; n<outputMembers.Count; n++)
 383                                 {
 384                                         CodeParameterDeclarationExpression cpd = GenerateParameter (outputMembers[n], FieldDirection.Out);
 385                                         outParams [n] = cpd;
 386
 387                                         bool found = false;
 388                                         foreach (CodeParameterDeclarationExpression ip in method.Parameters)
 389                                         {
 390                                                 if (ip.Name == cpd.Name && ip.Type.BaseType == cpd.Type.BaseType) {
 391                                                         ip.Direction = FieldDirection.Ref;
 392                                                         methodEnd.Parameters.Add (GenerateParameter (outputMembers[n], FieldDirection.Out));
 393                                                         found = true;
 394                                                         break;
 395                                                 }
 396                                         }
 397
 398                                         if (found) continue;
 399
 400                                         if (!hasReturn)
 401                                         {
 402                                                 hasReturn = true;
 403                                                 method.ReturnType = cpd.Type;
 404                                                 methodEnd.ReturnType = cpd.Type;
 405                                                 GenerateReturnAttributes (outputMembers, outputMembers[n], bodyBinding.Use, method);
 406                                                 outParams [n] = null;
 407                                                 continue;
 408                                         }
 409
 410                                         method.Parameters.Add (cpd);
 411                                         GenerateMemberAttributes (outputMembers, outputMembers[n], bodyBinding.Use, cpd);
 412                                         methodEnd.Parameters.Add (GenerateParameter (outputMembers[n], FieldDirection.Out));
 413                                 }
 414                         }
 415
 416                         methodBegin.Parameters.Add (new CodeParameterDeclarationExpression (typeof (AsyncCallback),varCallback));
 417                         methodBegin.Parameters.Add (new CodeParameterDeclarationExpression (typeof (object),varAsyncState));
 418                         methodBegin.ReturnType = new CodeTypeReference (typeof(IAsyncResult));
 419
 420                         // Array of input parameters
 421
 422                         CodeArrayCreateExpression methodParams;
 423                         if (paramArray.Length > 0)
 424                                 methodParams = new CodeArrayCreateExpression (typeof(object), paramArray);
 425                         else
 426                                 methodParams = new CodeArrayCreateExpression (typeof(object), 0);
 427
 428                         // Assignment of output parameters
 429
 430                         CodeStatementCollection outAssign = new CodeStatementCollection ();
 431                         CodeVariableReferenceExpression arrVar = new CodeVariableReferenceExpression (varResults);
 432                         for (int n=0; n<outParams.Length; n++)
 433                         {
 434                                 CodeExpression index = new CodePrimitiveExpression (n);
 435                                 if (outParams[n] == null)
 436                                 {
 437                                         CodeExpression res = new CodeCastExpression (method.ReturnType, new CodeArrayIndexerExpression (arrVar, index));
 438                                         outAssign.Add (new CodeMethodReturnStatement (res));
 439                                 }
 440                                 else
 441                                 {
 442                                         CodeExpression res = new CodeCastExpression (outParams[n].Type, new CodeArrayIndexerExpression (arrVar, index));
 443                                         CodeExpression var = new CodeVariableReferenceExpression (outParams[n].Name);
 444                                         outAssign.Insert (0, new CodeAssignStatement (var, res));
 445                                 }
 446                         }
 447
 448                         if (Style == ServiceDescriptionImportStyle.Client)
 449                         {
 450                                 // Invoke call
 451
 452                                 CodeThisReferenceExpression ethis = new CodeThisReferenceExpression();
 453                                 CodePrimitiveExpression varMsgName = new CodePrimitiveExpression (messageName);
 454                                 CodeMethodInvokeExpression inv;
 455                                 CodeVariableDeclarationStatement dec;
 456
 457                                 inv = new CodeMethodInvokeExpression (ethis, "Invoke", varMsgName, methodParams);
 458                                 if (outputMembers != null && outputMembers.Count > 0)
 459                                 {
 460                                         dec = new CodeVariableDeclarationStatement (typeof(object[]), varResults, inv);
 461                                         method.Statements.Add (dec);
 462                                         method.Statements.AddRange (outAssign);
 463                                 }
 464                                 else
 465                                         method.Statements.Add (inv);
 466
 467                                 // Begin Invoke Call
 468
 469                                 CodeExpression expCallb = new CodeVariableReferenceExpression (varCallback);
 470                                 CodeExpression expAsyncs = new CodeVariableReferenceExpression (varAsyncState);
 471                                 inv = new CodeMethodInvokeExpression (ethis, "BeginInvoke", varMsgName, methodParams, expCallb, expAsyncs);
 472                                 methodBegin.Statements.Add (new CodeMethodReturnStatement (inv));
 473
 474                                 // End Invoke call
 475
 476                                 CodeExpression varAsyncr = new CodeVariableReferenceExpression (varAsyncResult);
 477                                 inv = new CodeMethodInvokeExpression (ethis, "EndInvoke", varAsyncr);
 478                                 if (outputMembers != null && outputMembers.Count > 0)
 479                                 {
 480                                         dec = new CodeVariableDeclarationStatement (typeof(object[]), varResults, inv);
 481                                         methodEnd.Statements.Add (dec);
 482                                         methodEnd.Statements.AddRange (outAssign);
 483                                 }
 484                                 else
 485                                         methodEnd.Statements.Add (inv);
 486                         }
 487                         else {
 488                                 method.Attributes = MemberAttributes.Public | MemberAttributes.Abstract;
 489                         }
 490
 491                         // Attributes
 492
 493                         ImportHeaders (method);
 494
 495                         CodeAttributeDeclaration att = new CodeAttributeDeclaration ("System.Web.Services.WebMethodAttribute");
 496                         if (messageName != method.Name) att.Arguments.Add (GetArg ("MessageName",messageName));
 497                         AddCustomAttribute (method, att, (Style == ServiceDescriptionImportStyle.Server));
 498
 499                         if (style == SoapBindingStyle.Rpc)
 500                         {
 501                                 att = new CodeAttributeDeclaration ("System.Web.Services.Protocols.SoapRpcMethodAttribute");
 502                                 att.Arguments.Add (GetArg (soapOper.SoapAction));
 503                                 if (inputMembers.ElementName != method.Name) att.Arguments.Add (GetArg ("RequestElementName", inputMembers.ElementName));
 504                                 if (outputMembers != null && outputMembers.ElementName != (method.Name + "Response")) att.Arguments.Add (GetArg ("ResponseElementName", outputMembers.ElementName));
 505                                 att.Arguments.Add (GetArg ("RequestNamespace", inputMembers.Namespace));
 506                                 if (outputMembers != null) att.Arguments.Add (GetArg ("ResponseNamespace", outputMembers.Namespace));
 507                                 if (outputMembers == null) att.Arguments.Add (GetArg ("OneWay", true));
 508                         }
 509                         else
 510                         {
 511                                 if (outputMembers != null && (inputMembers.ElementName == "" && outputMembers.ElementName != "" ||
 512                                         inputMembers.ElementName != "" && outputMembers.ElementName == ""))
 513                                         throw new InvalidOperationException ("Parameter style is not the same for the input message and output message");
 514
 515                                 att = new CodeAttributeDeclaration ("System.Web.Services.Protocols.SoapDocumentMethodAttribute");
 516                                 att.Arguments.Add (GetArg (soapOper.SoapAction));
 517                                 if (inputMembers.ElementName != "") {
 518                                         if (inputMembers.ElementName != method.Name) att.Arguments.Add (GetArg ("RequestElementName", inputMembers.ElementName));
 519                                         if (outputMembers != null && outputMembers.ElementName != (method.Name + "Response")) att.Arguments.Add (GetArg ("ResponseElementName", outputMembers.ElementName));
 520                                         att.Arguments.Add (GetArg ("RequestNamespace", inputMembers.Namespace));
 521                                         if (outputMembers != null) att.Arguments.Add (GetArg ("ResponseNamespace", outputMembers.Namespace));
 522                                         att.Arguments.Add (GetEnumArg ("ParameterStyle", "System.Web.Services.Protocols.SoapParameterStyle", "Wrapped"));
 523                                 }
 524                                 else
 525                                         att.Arguments.Add (GetEnumArg ("ParameterStyle", "System.Web.Services.Protocols.SoapParameterStyle", "Bare"));
 526
 527                                 if (outputMembers == null) att.Arguments.Add (GetArg ("OneWay", true));
 528
 529                                 att.Arguments.Add (GetEnumArg ("Use", "System.Web.Services.Description.SoapBindingUse", bodyBinding.Use.ToString()));
 530                         }
 531
 532                         AddCustomAttribute (method, att, true);
 533
 534                         CodeTypeDeclaration.Members.Add (method);
 535
 536                         if (Style == ServiceDescriptionImportStyle.Client) {
 537                                 CodeTypeDeclaration.Members.Add (methodBegin);
 538                                 CodeTypeDeclaration.Members.Add (methodEnd);
 539                         }
 540
 541                         return method;
 542                 }
 543
 544                 CodeParameterDeclarationExpression GenerateParameter (XmlMemberMapping member, FieldDirection dir)
 545                 {
 546                         CodeParameterDeclarationExpression par = new CodeParameterDeclarationExpression (member.TypeFullName, member.MemberName);
 547                         par.Direction = dir;
 548                         return par;
 549                 }
 550
 551                 void GenerateMemberAttributes (XmlMembersMapping members, XmlMemberMapping member, SoapBindingUse use, CodeParameterDeclarationExpression param)
 552                 {
 553                         if (use == SoapBindingUse.Literal)
 554                                 xmlExporter.AddMappingMetadata (param.CustomAttributes, member, members.Namespace);
 555                         else
 556                                 soapExporter.AddMappingMetadata (param.CustomAttributes, member);
 557                 }
 558
 559                 void GenerateReturnAttributes (XmlMembersMapping members, XmlMemberMapping member, SoapBindingUse use, CodeMemberMethod method)
 560                 {
 561                         if (use == SoapBindingUse.Literal)
 562                                 xmlExporter.AddMappingMetadata (method.ReturnTypeCustomAttributes, member, members.Namespace, (member.ElementName != method.Name + "Result"));
 563                         else
 564                                 soapExporter.AddMappingMetadata (method.ReturnTypeCustomAttributes, member, (member.ElementName != method.Name + "Result"));
 565                 }
 566
 567                 void ImportHeaders (CodeMemberMethod method)
 568                 {
 569                         foreach (object ob in OperationBinding.Input.Extensions)
 570                         {
 571                                 SoapHeaderBinding hb = ob as SoapHeaderBinding;
 572                                 if (hb == null) continue;
 573                                 if (HasHeader (OperationBinding.Output, hb))
 574                                         ImportHeader (method, hb, SoapHeaderDirection.In | SoapHeaderDirection.Out);
 575                                 else
 576                                         ImportHeader (method, hb, SoapHeaderDirection.In);
 577                         }
 578
 579                         if (OperationBinding.Output == null) return;
 580
 581                         foreach (object ob in OperationBinding.Output.Extensions)
 582                         {
 583                                 SoapHeaderBinding hb = ob as SoapHeaderBinding;
 584                                 if (hb == null) continue;
 585                                 if (!HasHeader (OperationBinding.Input, hb))
 586                                         ImportHeader (method, hb, SoapHeaderDirection.Out);
 587                         }
 588                 }
 589
 590                 bool HasHeader (MessageBinding msg, SoapHeaderBinding hb)
 591                 {
 592                         if (msg == null) return false;
 593
 594                         foreach (object ob in msg.Extensions)
 595                         {
 596                                 SoapHeaderBinding mhb = ob as SoapHeaderBinding;
 597                                 if ((mhb != null) && (mhb.Message == hb.Message) && (mhb.Part == hb.Part))
 598                                         return true;
 599                         }
 600                         return false;
 601                 }
 602
 603                 void ImportHeader (CodeMemberMethod method, SoapHeaderBinding hb, SoapHeaderDirection direction)
 604                 {
 605                         Message msg = ServiceDescriptions.GetMessage (hb.Message);
 606                         if (msg == null) throw new InvalidOperationException ("Message " + hb.Message + " not found");
 607                         MessagePart part = msg.Parts [hb.Part];
 608                         if (part == null) throw new InvalidOperationException ("Message part " + hb.Part + " not found in message " + hb.Message);
 609
 610                         XmlTypeMapping map;
 611                         if (hb.Use == SoapBindingUse.Literal)
 612                         {
 613                                 map = xmlImporter.ImportDerivedTypeMapping (part.Element, typeof (SoapHeader));
 614                                 xmlExporter.ExportTypeMapping (map);
 615                         }
 616                         else
 617                         {
 618                                 map = soapImporter.ImportDerivedTypeMapping (part.Type, typeof (SoapHeader), true);
 619                                 soapExporter.ExportTypeMapping (map);
 620                         }
 621
 622                         bool required = false;
 623
 624                         string varName = headerVariables [map] as string;
 625                         if (varName == null)
 626                         {
 627                                 varName = memberIds.AddUnique(CodeIdentifier.MakeValid (map.TypeName + "Value"),hb);
 628                                 headerVariables.Add (map, varName);
 629                                 CodeMemberField codeField = new CodeMemberField (map.TypeFullName, varName);
 630                                 codeField.Attributes = MemberAttributes.Public;
 631                                 CodeTypeDeclaration.Members.Add (codeField);
 632                         }
 633
 634                         CodeAttributeDeclaration att = new CodeAttributeDeclaration ("System.Web.Services.Protocols.SoapHeaderAttribute");
 635                         att.Arguments.Add (GetArg (varName));
 636                         att.Arguments.Add (GetArg ("Required", required));
 637                         if (direction != SoapHeaderDirection.In) att.Arguments.Add (GetEnumArg ("Direction", "System.Web.Services.Protocols.SoapHeaderDirection", direction.ToString ()));
 638                         AddCustomAttribute (method, att, true);
 639                 }
 640
 641                 #endregion
 642         }
 643 }