mcs/class/System.Web.Extensions/System.Web.Script.Services/LogicalTypeInfo.cs

   1 //
   2 // LogicalTypeInfo.cs
   3 //
   4 // Author:
   5 //   Konstantin Triger <kostat@mainsoft.com>
   6 //   Atsushi Enomoto <atsushi@ximian.com>
   7 //
   8 // (C) 2007 Mainsoft, Inc.  http://www.mainsoft.com
   9 // Copyright (C) 2009 Novell, Inc. http://novell.com
  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;
  33 using System.Collections.Generic;
  34 using System.Collections.Specialized;
  35 using System.Text;
  36 using System.Web.Services;
  37 using System.Reflection;
  38 using System.Collections;
  39 using System.Web.Script.Serialization;
  40 using System.IO;
  41 using System.Xml.Serialization;
  42 using System.Xml;
  43 using System.ServiceModel;
  44 using System.ServiceModel.Description;
  45
  46 namespace System.Web.Script.Services
  47 {
  48         internal sealed class JsonResult
  49         {
  50                 public readonly object d;
  51                 public JsonResult (object result) {
  52                         d = result;
  53                 }
  54         }
  55
  56         internal abstract class LogicalTypeInfo
  57         {
  58                 public static LogicalTypeInfo CreateTypeInfo (Type t, string filePath)
  59                 {
  60                         if (t.GetCustomAttributes (typeof (ServiceContractAttribute), false).Length > 0)
  61                                 return new WcfLogicalTypeInfo (t, filePath);
  62                         else
  63                                 return new AsmxLogicalTypeInfo (t, filePath);
  64                 }
  65
  66                 internal abstract class LogicalMethodInfo
  67                 {
  68                         readonly MethodInfo _methodInfo;
  69                         internal readonly ParameterInfo [] _params;
  70                         internal readonly Dictionary<string, int> _paramMap;
  71                         LogicalTypeInfo _typeInfo;
  72
  73                         protected LogicalMethodInfo (LogicalTypeInfo typeInfo, MethodInfo method)
  74                         {
  75                                 _methodInfo = method;
  76                                 _params = MethodInfo.GetParameters ();
  77                                 _typeInfo = typeInfo;
  78
  79                                 if (HasParameters) {
  80                                         _paramMap = new Dictionary<string, int> (_params.Length, StringComparer.Ordinal);
  81                                         for (int i = 0; i < _params.Length; i++)
  82                                                 _paramMap.Add(_params[i].Name, i);
  83                                 }
  84
  85                         }
  86
  87                         public abstract bool UseHttpGet { get; }
  88                         public abstract bool EnableSession { get; }
  89                         public abstract ResponseFormat ResponseFormat { get; }
  90                         public abstract string MethodName { get; }
  91                         public MethodInfo MethodInfo { get { return _methodInfo; } }
  92                         public bool HasParameters { get { return _params != null && _params.Length > 0; } }
  93                         public IEnumerable<Type> GetParameterTypes () {
  94                                 if (HasParameters)
  95                                         for (int i = 0; i < _params.Length; i++)
  96                                                 yield return _params [i].ParameterType;
  97
  98                                 yield return MethodInfo.ReturnType;
  99                         }
 100
 101                         public void GenerateMethod (StringBuilder proxy, bool isPrototype, bool isPage) {
 102                                 string ns;
 103                                 string service;// = isPage ? "PageMethods" : MethodInfo.DeclaringType.FullName;
 104
 105                                 _typeInfo.GetNamespaceAndServiceName (MethodInfo.DeclaringType, isPage, out ns, out service);
 106                                 string useHttpGet = UseHttpGet ? "true" : "false";
 107                                 string paramMap = GenerateParameters (true);
 108                                 string paramList = GenerateParameters (false);
 109
 110                                 if (isPrototype){
 111                                         proxy.AppendFormat (
 112 @"
 113 {1}:function({4}succeededCallback, failedCallback, userContext) {{
 114 return this._invoke({0}.get_path(), '{1}',{2},{{{3}}},succeededCallback,failedCallback,userContext); }}",
 115                                         service, MethodName, useHttpGet, paramMap, paramList);
 116                                 }
 117                                 else
 118                                         proxy.AppendFormat (
 119 @"
 120 {0}.{1}= function({2}onSuccess,onFailed,userContext) {{{0}._staticInstance.{1}({2}onSuccess,onFailed,userContext); }}",
 121                                         service, MethodName, paramList);
 122                         }
 123
 124                         string GenerateParameters (bool isMap) {
 125                                 if (!HasParameters)
 126                                         return null;
 127
 128                                 StringBuilder builder = new StringBuilder ();
 129
 130                                 for (int i = 0; i < _params.Length; i++) {
 131                                         builder.AppendFormat (isMap ? "{0}:{0}" : "{0}", _params [i].Name);
 132                                         builder.Append (',');
 133                                 }
 134
 135                                 if (isMap)
 136                                         builder.Length--;
 137
 138                                 return builder.ToString ();
 139                         }
 140
 141                         public abstract void Invoke (HttpRequest request, HttpResponse response);
 142                 }
 143
 144                 static Hashtable _type_to_logical_type = Hashtable.Synchronized (new Hashtable ());
 145
 146                 static internal LogicalTypeInfo GetLogicalTypeInfo (Type t, string filePath) {
 147                         Hashtable type_to_manager = _type_to_logical_type;
 148                         LogicalTypeInfo tm = (LogicalTypeInfo) type_to_manager [t];
 149
 150                         if (tm != null)
 151                                 return tm;
 152
 153                         tm = CreateTypeInfo (t, filePath);
 154                         type_to_manager [t] = tm;
 155
 156                         return tm;
 157                 }
 158
 159                 protected static string EnsureNamespaceRegistered (string ns, string name, StringBuilder proxy, List<string> registeredNamespaces) {
 160                         if (String.IsNullOrEmpty (ns))
 161                                 return "var " + name;
 162
 163                         if (!registeredNamespaces.Contains (ns)) {
 164                                 registeredNamespaces.Add (ns);
 165                                 proxy.AppendFormat (
 166 @"
 167 Type.registerNamespace('{0}');",
 168                                                                    ns);
 169                         }
 170                         return name;
 171                 }
 172
 173                 protected virtual void GetNamespaceAndServiceName (Type type, bool isPage, out string ns, out string service)
 174                 {
 175                         ns = isPage ? String.Empty : type.Namespace;
 176                         service = isPage ? "PageMethods" : type.FullName;
 177                 }
 178
 179                 // instance members
 180
 181                 internal readonly Type _type;
 182                 readonly string _proxy;
 183                 internal readonly Hashtable _methodMap;
 184
 185                 protected LogicalTypeInfo (Type t, string filePath)
 186                 {
 187                         _type = t;
 188                         bool isPage = _type.IsSubclassOf (typeof (System.Web.UI.Page));
 189
 190                         var logicalMethods = GetLogicalMethods (isPage);
 191                         //_logicalMethods = (LogicalMethodInfo []) list.ToArray (typeof (LogicalMethodInfo));
 192
 193                         _methodMap = new Hashtable (logicalMethods.Count);
 194                         for (int i = 0; i < logicalMethods.Count; i++)
 195                                 _methodMap.Add (logicalMethods [i].MethodName, logicalMethods [i]);
 196
 197                         string ns;
 198                         string service;
 199                         GetNamespaceAndServiceName (t, isPage, out ns, out service);
 200
 201                         StringBuilder proxy = new StringBuilder ();
 202                         List<string> registeredNamespaces = new List<string> ();
 203                         string scriptTypeDeclaration = EnsureNamespaceRegistered (ns, service, proxy, registeredNamespaces);
 204                         proxy.AppendFormat (
 205 @"
 206 " + scriptTypeDeclaration + @"=function() {{
 207 {0}.initializeBase(this);
 208 this._timeout = 0;
 209 this._userContext = null;
 210 this._succeeded = null;
 211 this._failed = null;
 212 }}
 213 {0}.prototype={{",
 214                         service);
 215
 216                         for (int i = 0; i < logicalMethods.Count; i++) {
 217                                 if (i > 0)
 218                                         proxy.Append (',');
 219                                 logicalMethods [i].GenerateMethod (proxy, true, isPage);
 220                         }
 221
 222                         proxy.AppendFormat (
 223 @"}}
 224 {0}.registerClass('{0}',Sys.Net.WebServiceProxy);
 225 {0}._staticInstance = new {0}();
 226 {0}.set_path = function(value) {{ {0}._staticInstance.set_path(value); }}
 227 {0}.get_path = function() {{ return {0}._staticInstance.get_path(); }}
 228 {0}.set_timeout = function(value) {{ {0}._staticInstance.set_timeout(value); }}
 229 {0}.get_timeout = function() {{ return {0}._staticInstance.get_timeout(); }}
 230 {0}.set_defaultUserContext = function(value) {{ {0}._staticInstance.set_defaultUserContext(value); }}
 231 {0}.get_defaultUserContext = function() {{ return {0}._staticInstance.get_defaultUserContext(); }}
 232 {0}.set_defaultSucceededCallback = function(value) {{ {0}._staticInstance.set_defaultSucceededCallback(value); }}
 233 {0}.get_defaultSucceededCallback = function() {{ return {0}._staticInstance.get_defaultSucceededCallback(); }}
 234 {0}.set_defaultFailedCallback = function(value) {{ {0}._staticInstance.set_defaultFailedCallback(value); }}
 235 {0}.get_defaultFailedCallback = function() {{ return {0}._staticInstance.get_defaultFailedCallback(); }}
 236 {0}.set_path(""{1}"");",
 237                         service, filePath);
 238
 239                         for (int i = 0; i < logicalMethods.Count; i++)
 240                                 logicalMethods [i].GenerateMethod (proxy, false, isPage);
 241
 242                         GenerateTypeRegistrationScript (proxy, registeredNamespaces);
 243
 244                         proxy.AppendLine ();
 245                         _proxy = proxy.ToString ();
 246                 }
 247
 248                 protected IEnumerable<MemberInfo> GetGenerateScriptTypes () {
 249                         foreach (LogicalMethodInfo lmi in _methodMap.Values)
 250                                 yield return lmi.MethodInfo;
 251
 252                         yield return _type;
 253                 }
 254
 255                 protected static void GenerateTypeRegistrationScript (StringBuilder proxy, Type scriptType, string scriptTypeId, List<string> registeredNamespaces) {
 256                         string className = scriptType.FullName.Replace ('+', '_');
 257                         string ns = scriptType.Namespace;
 258                         string scriptTypeDeclaration = EnsureNamespaceRegistered (ns, className, proxy, registeredNamespaces);
 259                         proxy.AppendFormat (
 260 @"
 261 if (typeof({0}) === 'undefined') {{", className);
 262                         if (scriptType.IsEnum) {
 263                                 proxy.AppendFormat (
 264 @"
 265 {0} = function() {{ throw Error.invalidOperation(); }}
 266 {0}.prototype = {1}
 267 {0}.registerEnum('{0}', {2});",
 268                                 className,
 269                                 // This method is also used for WCF, but for enum this should work ...
 270                                 AsmxLogicalTypeInfo.JSSerializer.Serialize(GetEnumPrototypeDictionary (scriptType)),
 271                                 Attribute.GetCustomAttribute (scriptType, typeof (FlagsAttribute)) != null ? "true" : "false");
 272
 273                         }
 274                         else {
 275                                 string typeId = String.IsNullOrEmpty (scriptTypeId) ? scriptType.FullName : scriptTypeId;
 276                                 proxy.AppendFormat (
 277 @"
 278 " + scriptTypeDeclaration + @"=gtc(""{1}"");
 279 {0}.registerClass('{0}');",
 280                                 className, typeId);
 281                         }
 282                         proxy.Append ('}');
 283                 }
 284
 285                 static IDictionary <string, object> GetEnumPrototypeDictionary (Type type)
 286                 {
 287                         var ret = new Dictionary <string, object> ();
 288                         string [] names = Enum.GetNames (type);
 289                         Array values = Enum.GetValues (type);
 290                         for (int i = 0; i < names.Length; i++)
 291                                 ret.Add (names [i], values.GetValue (i));
 292
 293                         return ret;
 294                 }
 295
 296                 static readonly Type typeOfIEnumerable = typeof (IEnumerable);
 297                 static readonly Type typeOfIDictionary = typeof (IDictionary);
 298
 299                 protected static bool ShouldGenerateScript (Type type, bool throwIfNot) {
 300                         if (type.IsEnum)
 301                                 return true;
 302
 303                         if (Type.GetTypeCode (type) != TypeCode.Object)
 304                                 return false;
 305
 306                         if (type == typeof (void))
 307                                 return false;
 308
 309                         if (typeOfIEnumerable.IsAssignableFrom (type) ||
 310                                 typeOfIDictionary.IsAssignableFrom (type) ||
 311                                 type.IsAbstract || type.IsInterface) {
 312                                 if (throwIfNot)
 313                                         ThrowOnIncorrectGenerateScriptAttribute ();
 314                                 return false;
 315                         }
 316
 317                         // LAMESPEC: MS never create proxies for GenericTypes
 318                         //&& type.GetGenericTypeDefinition ().GetGenericArguments ().Length > 1
 319                         if (type.IsGenericType)
 320                                 return false;
 321
 322                         ConstructorInfo ci = type.GetConstructor (Type.EmptyTypes);
 323                         if (ci == null || !ci.IsPublic) {
 324                                 if (throwIfNot)
 325                                         ThrowOnIncorrectGenerateScriptAttribute ();
 326                                 return false;
 327                         }
 328
 329                         return true;
 330                 }
 331
 332                 static void ThrowOnIncorrectGenerateScriptAttribute () {
 333                         throw new InvalidOperationException (
 334                                 "Using the GenerateScriptTypes attribute is not supported for types in the following categories: primitive types; DateTime; generic types taking more than one parameter; types implementing IEnumerable or IDictionary; interfaces; Abstract classes; classes without a public default constructor.");
 335                 }
 336
 337                 protected abstract void GenerateTypeRegistrationScript (StringBuilder proxy, List<string> registeredNamespaces);
 338
 339                 protected abstract List<LogicalMethodInfo> GetLogicalMethods (bool isPage);
 340
 341                 public string Proxy { get { return _proxy; } }
 342
 343                 public LogicalMethodInfo this [string method] {
 344                         get { return (LogicalMethodInfo) _methodMap [method]; }
 345                 }
 346         }
 347
 348         internal sealed class AsmxLogicalTypeInfo : LogicalTypeInfo
 349         {
 350                 #region LogicalMethodInfo
 351
 352                 public sealed class AsmxLogicalMethodInfo : LogicalTypeInfo.LogicalMethodInfo
 353                 {
 354                         readonly LogicalTypeInfo _typeInfo;
 355
 356                         readonly WebMethodAttribute _wma;
 357
 358                         readonly ScriptMethodAttribute _sma;
 359
 360                         readonly XmlSerializer _xmlSer;
 361
 362                         public AsmxLogicalMethodInfo (LogicalTypeInfo typeInfo, MethodInfo method)
 363                                 : base (typeInfo, method)
 364                         {
 365                                 _typeInfo = typeInfo;
 366
 367                                 _wma = (WebMethodAttribute) Attribute.GetCustomAttribute (method, typeof (WebMethodAttribute));
 368
 369                                 _sma = (ScriptMethodAttribute) Attribute.GetCustomAttribute (method, typeof (ScriptMethodAttribute));
 370                                 if (_sma == null)
 371                                         _sma = ScriptMethodAttribute.Default;
 372
 373                                 if (ScriptMethod.ResponseFormat == ResponseFormat.Xml
 374                                         && MethodInfo.ReturnType != typeof (void)) {
 375                                         Type retType = MethodInfo.ReturnType;
 376                                         if (Type.GetTypeCode (retType) != TypeCode.String || ScriptMethod.XmlSerializeString)
 377                                                 _xmlSer = new XmlSerializer (retType);
 378                                 }
 379                         }
 380
 381                         IDictionary<string,object> BuildInvokeParameters (HttpRequest request)
 382                         {
 383                                 return "GET".Equals (request.RequestType, StringComparison.OrdinalIgnoreCase) ?
 384                                         GetNameValueCollectionDictionary (request.QueryString) :
 385                                         (IDictionary<string, object>) JavaScriptSerializer.DefaultSerializer.DeserializeObjectInternal (new StreamReader (request.InputStream, request.ContentEncoding));
 386                         }
 387
 388                         IDictionary <string, object> GetNameValueCollectionDictionary (NameValueCollection nvc)
 389                         {
 390                                 var ret = new Dictionary <string, object> ();
 391
 392                                 for (int i = nvc.Count - 1; i >= 0; i--)
 393                                         ret.Add (nvc.GetKey (i), nvc.Get (i));
 394
 395                                 return ret;
 396                         }
 397
 398                         public override void Invoke (HttpRequest request, HttpResponse response) {
 399                                 var writer = response.Output;
 400                                 IDictionary<string, object> @params = BuildInvokeParameters (request);
 401
 402                                 object [] pp = null;
 403                                 if (HasParameters) {
 404                                         Type ptype;
 405                                         int i;
 406                                         object value;
 407                                         pp = new object [_params.Length];
 408
 409                                         foreach (KeyValuePair<string, object> pair in @params) {
 410                                                 if (!_paramMap.TryGetValue (pair.Key, out i))
 411                                                         continue;
 412
 413                                                 value = pair.Value;
 414                                                 ptype = _params [i].ParameterType;
 415                                                 if (ptype == typeof (System.Object))
 416                                                         pp [i] = value;
 417                                                 else
 418                                                         pp [i] = AsmxLogicalTypeInfo.JSSerializer.ConvertToType (value, ptype);
 419                                         }
 420                                 }
 421
 422                                 object target = MethodInfo.IsStatic ? null : Activator.CreateInstance (_typeInfo._type);
 423                                 object result = MethodInfo.Invoke (target, pp);
 424                                 if (_xmlSer != null) {
 425                                         XmlTextWriter xwriter = new XmlTextWriter (writer);
 426                                         xwriter.Formatting = Formatting.None;
 427                                         _xmlSer.Serialize (xwriter, result);
 428                                 }
 429                                 else
 430                                 {
 431                                         result = new JsonResult (result);
 432                                         AsmxLogicalTypeInfo.JSSerializer.Serialize (result, writer);
 433                                 }
 434                         }
 435
 436                         public override string MethodName { get { return String.IsNullOrEmpty (WebMethod.MessageName) ? MethodInfo.Name : WebMethod.MessageName; } }
 437
 438                         public ScriptMethodAttribute ScriptMethod { get { return _sma; } }
 439                         public WebMethodAttribute WebMethod { get { return _wma; } }
 440                         public override bool UseHttpGet { get { return ScriptMethod.UseHttpGet; } }
 441                         public override bool EnableSession { get { return WebMethod.EnableSession; } }
 442                         public override ResponseFormat ResponseFormat { get { return ScriptMethod.ResponseFormat; } }
 443                 }
 444
 445                 #endregion
 446
 447                 //readonly LogicalMethodInfo [] _logicalMethods;
 448                 internal static readonly JavaScriptSerializer JSSerializer = new JavaScriptSerializer (null, true);
 449
 450                 protected override List<LogicalMethodInfo> GetLogicalMethods (bool isPage)
 451                 {
 452                         BindingFlags bindingAttr = isPage ? (BindingFlags.Static | BindingFlags.FlattenHierarchy | BindingFlags.Public) : (BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
 453                         MethodInfo [] all_type_methods = _type.GetMethods (bindingAttr);
 454                         List<LogicalMethodInfo> logicalMethods = new List<LogicalMethodInfo> (all_type_methods.Length);
 455                         foreach (MethodInfo mi in all_type_methods) {
 456                                 if (mi.IsPublic &&
 457                                         mi.GetCustomAttributes (typeof (WebMethodAttribute), false).Length > 0)
 458                                         logicalMethods.Add (new AsmxLogicalMethodInfo (this, mi));
 459                                 else {
 460                                         foreach (Type ifaceType in _type.GetInterfaces ()) {
 461                                                 if (ifaceType.GetCustomAttributes (typeof (WebServiceBindingAttribute), false).Length > 0) {
 462                                                         MethodInfo found = FindInInterface (ifaceType, mi);
 463                                                         if (found != null) {
 464                                                                 if (found.GetCustomAttributes (typeof (WebMethodAttribute), false).Length > 0)
 465                                                                         logicalMethods.Add (new AsmxLogicalMethodInfo (this, found));
 466
 467                                                                 break;
 468                                                         }
 469                                                 }
 470                                         }
 471                                 }
 472                         }
 473                         return logicalMethods;
 474                 }
 475
 476                 internal AsmxLogicalTypeInfo (Type t, string filePath)
 477                         : base (t, filePath)
 478                 {
 479                 }
 480
 481                 IEnumerable<GenerateScriptTypeAttribute> GetGenerateScriptTypeAttributes () {
 482                         Hashtable generatedTypes = new Hashtable ();
 483
 484                         foreach (MemberInfo mi in GetGenerateScriptTypes ()) {
 485                                 GenerateScriptTypeAttribute [] gstas = (GenerateScriptTypeAttribute []) mi.GetCustomAttributes (typeof (GenerateScriptTypeAttribute), true);
 486                                 if (gstas == null || gstas.Length == 0)
 487                                         continue;
 488
 489                                 for (int i = 0; i < gstas.Length; i++) {
 490                                         if (!generatedTypes.Contains (gstas [i].Type)) {
 491                                                 if (ShouldGenerateScript (gstas [i].Type, true)) {
 492                                                         generatedTypes [gstas [i].Type] = gstas [i].Type;
 493                                                         yield return gstas [i];
 494                                                 }
 495                                         }
 496                                 }
 497                         }
 498
 499                         foreach (LogicalMethodInfo lmi in _methodMap.Values) {
 500                                 foreach (Type t in lmi.GetParameterTypes ()) {
 501                                         Type param = GetTypeToGenerate (t);
 502                                         if (!generatedTypes.Contains (param)) {
 503                                                 if (ShouldGenerateScript (param, false)) {
 504                                                         generatedTypes [param] = param;
 505                                                         yield return new GenerateScriptTypeAttribute (param);
 506                                                 }
 507                                         }
 508                                 }
 509                         }
 510                 }
 511
 512                 static Type GetTypeToGenerate (Type type) {
 513                         if (type.IsArray)
 514                                 return type.GetElementType ();
 515                         if (type.IsGenericType) {
 516                                 while (type.IsGenericType && type.GetGenericArguments ().Length == 1)
 517                                         type = type.GetGenericArguments () [0];
 518                                 return type;
 519                         }
 520                         return type;
 521                 }
 522
 523                 static MethodInfo FindInInterface (Type ifaceType, MethodInfo method) {
 524                         int nameStartIndex = 0;
 525                         if (method.IsPrivate) {
 526                                 nameStartIndex = method.Name.LastIndexOf ('.');
 527                                 if (nameStartIndex < 0)
 528                                         nameStartIndex = 0;
 529                                 else {
 530                                         if (String.CompareOrdinal (
 531                                                 ifaceType.FullName.Replace ('+', '.'), 0, method.Name, 0, nameStartIndex) != 0)
 532                                                 return null;
 533
 534                                         nameStartIndex++;
 535                                 }
 536                         }
 537                         foreach (MethodInfo mi in ifaceType.GetMembers ()) {
 538                                 if (method.ReturnType == mi.ReturnType &&
 539                                         String.CompareOrdinal (method.Name, nameStartIndex, mi.Name, 0, mi.Name.Length) == 0) {
 540                                         ParameterInfo [] rpi = method.GetParameters ();
 541                                         ParameterInfo [] lpi = mi.GetParameters ();
 542                                         if (rpi.Length == lpi.Length) {
 543                                                 bool match = true;
 544                                                 for (int i = 0; i < rpi.Length; i++) {
 545                                                         if (rpi [i].ParameterType != lpi [i].ParameterType) {
 546                                                                 match = false;
 547                                                                 break;
 548                                                         }
 549                                                 }
 550
 551                                                 if (match)
 552                                                         return mi;
 553                                         }
 554                                 }
 555                         }
 556
 557                         return null;
 558                 }
 559
 560                 protected override void GenerateTypeRegistrationScript (StringBuilder proxy, List<string> registeredNamespaces)
 561                 {
 562                         bool gtc = false;
 563
 564                         foreach (GenerateScriptTypeAttribute gsta in GetGenerateScriptTypeAttributes ()) {
 565                                 if (!gtc && !gsta.Type.IsEnum) {
 566                                         proxy.Append (
 567 @"
 568 var gtc = Sys.Net.WebServiceProxy._generateTypedConstructor;");
 569                                         gtc = true;
 570                                 }
 571                                 GenerateTypeRegistrationScript (proxy, gsta.Type, gsta.ScriptTypeId, registeredNamespaces);
 572                         }
 573                 }
 574         }
 575
 576         internal class WcfLogicalTypeInfo : LogicalTypeInfo
 577         {
 578                 ContractDescription cd;
 579
 580                 public WcfLogicalTypeInfo (Type type, string filePath)
 581                         : base (type, filePath)
 582                 {
 583                 }
 584
 585                 ContractDescription Contract {
 586                         get {
 587                                 if (cd == null)
 588                                         cd = ContractDescription.GetContract (_type);
 589                                 return cd;
 590                         }
 591                 }
 592
 593                 IEnumerable<KeyValuePair<Type,string>> GetDataContractTypeInfos ()
 594                 {
 595                         foreach (var od in Contract.Operations) {
 596                                 foreach (var md in od.Messages) {
 597                                         foreach (var pd in md.Body.Parts) {
 598                                                 if (ShouldGenerateScript (pd.Type, false))
 599                                                         yield return new KeyValuePair<Type,string> (pd.Type, null);
 600                                         }
 601                                         if (md.Body.ReturnValue != null && ShouldGenerateScript (md.Body.ReturnValue.Type, false))
 602                                                 yield return new KeyValuePair<Type,string> (md.Body.ReturnValue.Type, null);
 603                                 }
 604                         }
 605                         yield break;
 606                 }
 607
 608                 protected override void GetNamespaceAndServiceName (Type type, bool isPage, out string ns, out string service)
 609                 {
 610                         string name = type.Namespace;
 611                         int dot = name.LastIndexOf ('.');
 612                         if (dot > -1)
 613                                 name = name.Substring (dot + 1);
 614                         ns = name;
 615                         service = name + "." + type.Name;
 616                 }
 617
 618                 protected override void GenerateTypeRegistrationScript (StringBuilder proxy, List<string> registeredNamespaces)
 619                 {
 620                         bool gtc = false;
 621
 622                         foreach (KeyValuePair<Type,string> pair in GetDataContractTypeInfos ()) {
 623                                 if (!gtc && !pair.Key.IsEnum) {
 624                                         proxy.Append (
 625 @"
 626 var gtc = Sys.Net.WebServiceProxy._generateTypedConstructor;");
 627                                         gtc = true;
 628                                 }
 629                                 GenerateTypeRegistrationScript (proxy, pair.Key, pair.Value, registeredNamespaces);
 630                         }
 631                 }
 632
 633                 protected override List<LogicalMethodInfo> GetLogicalMethods (bool isPage)
 634                 {
 635                         if (isPage)
 636                                 throw new NotSupportedException ();
 637
 638                         var l = new List<LogicalMethodInfo> ();
 639                         foreach (var od in Contract.Operations)
 640                                 l.Add (new WcfLogicalMethodInfo (this, od));
 641                         return l;
 642                 }
 643
 644                 internal class WcfLogicalMethodInfo : LogicalMethodInfo
 645                 {
 646                         OperationDescription od;
 647
 648                         public WcfLogicalMethodInfo (LogicalTypeInfo typeInfo, OperationDescription od)
 649                                 : base (typeInfo, od.SyncMethod)
 650                         {
 651                                 this.od = od;
 652                         }
 653
 654                         public override bool UseHttpGet { get { return true; } } // always
 655
 656                         // FIXME: could this be enabled?
 657                         public override bool EnableSession {
 658                                 get { return false; }
 659                         }
 660
 661                         public override ResponseFormat ResponseFormat {
 662                                 get { return ResponseFormat.Json; } // always
 663                         }
 664
 665                         public override string MethodName {
 666                                 get { return od.Name; }
 667                         }
 668
 669                         public override void Invoke (HttpRequest request, HttpResponse response)
 670                         {
 671                                 // invocation is done in WCF part.
 672                                 throw new NotSupportedException ();
 673                         }
 674                 }
 675         }
 676 }