class/corlib/System/AppDomain.cs

   1 //
   2 // System.AppDomain.cs
   3 //
   4 // Authors:
   5 //   Paolo Molaro (lupus@ximian.com)
   6 //   Dietmar Maurer (dietmar@ximian.com)
   7 //   Miguel de Icaza (miguel@ximian.com)
   8 //   Gonzalo Paniagua (gonzalo@ximian.com)
   9 //   Patrik Torstensson
  10 //   Sebastien Pouliot (sebastien@ximian.com)
  11 //
  12 // (C) 2001, 2002 Ximian, Inc.  http://www.ximian.com
  13 // Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
  14 //
  15 // Permission is hereby granted, free of charge, to any person obtaining
  16 // a copy of this software and associated documentation files (the
  17 // "Software"), to deal in the Software without restriction, including
  18 // without limitation the rights to use, copy, modify, merge, publish,
  19 // distribute, sublicense, and/or sell copies of the Software, and to
  20 // permit persons to whom the Software is furnished to do so, subject to
  21 // the following conditions:
  22 //
  23 // The above copyright notice and this permission notice shall be
  24 // included in all copies or substantial portions of the Software.
  25 //
  26 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  27 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  28 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  29 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  30 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  31 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  32 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  33 //
  34
  35 using System.Collections;
  36 using System.Globalization;
  37 using System.IO;
  38 using System.Reflection;
  39 using System.Reflection.Emit;
  40 using System.Threading;
  41 using System.Runtime.CompilerServices;
  42 using System.Runtime.InteropServices;
  43 using System.Runtime.Remoting;
  44 using System.Runtime.Remoting.Contexts;
  45 using System.Runtime.Remoting.Channels;
  46 using System.Runtime.Remoting.Messaging;
  47 using System.Security;
  48 using System.Security.Permissions;
  49 using System.Security.Policy;
  50 using System.Security.Principal;
  51 using System.Configuration.Assemblies;
  52
  53 using System.Collections.Generic;
  54 using System.Runtime.ConstrainedExecution;
  55 using System.Text;
  56
  57 namespace System {
  58
  59         [ComVisible (true)]
  60 #if !NET_2_1
  61         [ComDefaultInterface (typeof (_AppDomain))]
  62 #endif
  63         [ClassInterface(ClassInterfaceType.None)]
  64 #if NET_2_1
  65         public sealed class AppDomain : MarshalByRefObject {
  66 #else
  67         public sealed class AppDomain : MarshalByRefObject, _AppDomain, IEvidenceFactory {
  68 #endif
  69         #pragma warning disable 169
  70         #region Sync with object-internals.h
  71                 IntPtr _mono_app_domain;
  72                 #endregion
  73         #pragma warning restore 169
  74                 static string _process_guid;
  75
  76                 [ThreadStatic]
  77                 static Hashtable type_resolve_in_progress;
  78
  79                 [ThreadStatic]
  80                 static Hashtable assembly_resolve_in_progress;
  81
  82                 [ThreadStatic]
  83                 static Hashtable assembly_resolve_in_progress_refonly;
  84 #if !MOONLIGHT
  85                 // CAS
  86                 private Evidence _evidence;
  87                 private PermissionSet _granted;
  88
  89                 // non-CAS
  90                 private PrincipalPolicy _principalPolicy;
  91
  92                 [ThreadStatic]
  93                 private static IPrincipal _principal;
  94 #endif
  95                 static AppDomain default_domain;
  96
  97                 private AppDomain ()
  98                 {
  99                 }
 100
 101                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 102                 private extern AppDomainSetup getSetup ();
 103
 104 #if NET_2_1
 105                 internal
 106 #endif
 107                 AppDomainSetup SetupInformationNoCopy {
 108                         get { return getSetup (); }
 109                 }
 110
 111                 public AppDomainSetup SetupInformation {
 112                         get {
 113                                 AppDomainSetup setup = getSetup ();
 114                                 return new AppDomainSetup (setup);
 115                         }
 116                 }
 117
 118 #if !NET_2_1
 119                 [MonoTODO]
 120                 public ApplicationTrust ApplicationTrust {
 121                         get { throw new NotImplementedException (); }
 122                 }
 123 #endif
 124 #if !MOONLIGHT
 125                 public string BaseDirectory {
 126                         get {
 127                                 string path = SetupInformationNoCopy.ApplicationBase;
 128                                 if (SecurityManager.SecurityEnabled && (path != null) && (path.Length > 0)) {
 129                                         // we cannot divulge local file informations
 130                                         new FileIOPermission (FileIOPermissionAccess.PathDiscovery, path).Demand ();
 131                                 }
 132                                 return path;
 133                         }
 134                 }
 135
 136                 public string RelativeSearchPath {
 137                         get {
 138                                 string path = SetupInformationNoCopy.PrivateBinPath;
 139                                 if (SecurityManager.SecurityEnabled && (path != null) && (path.Length > 0)) {
 140                                         // we cannot divulge local file informations
 141                                         new FileIOPermission (FileIOPermissionAccess.PathDiscovery, path).Demand ();
 142                                 }
 143                                 return path;
 144                         }
 145                 }
 146
 147                 public string DynamicDirectory {
 148                         get {
 149                                 AppDomainSetup setup = SetupInformationNoCopy;
 150                                 if (setup.DynamicBase == null)
 151                                         return null;
 152
 153                                 string path = Path.Combine (setup.DynamicBase, setup.ApplicationName);
 154                                 if (SecurityManager.SecurityEnabled && (path != null) && (path.Length > 0)) {
 155                                         // we cannot divulge local file informations
 156                                         new FileIOPermission (FileIOPermissionAccess.PathDiscovery, path).Demand ();
 157                                 }
 158                                 return path;
 159                         }
 160                 }
 161
 162                 public bool ShadowCopyFiles {
 163                         get {
 164                                 return (SetupInformationNoCopy.ShadowCopyFiles == "true");
 165                         }
 166                 }
 167 #endif
 168
 169                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 170                 private extern string getFriendlyName ();
 171
 172                 public string FriendlyName {
 173                         get {
 174                                 return getFriendlyName ();
 175                         }
 176                 }
 177 #if !MOONLIGHT
 178                 public Evidence Evidence {
 179                         get {
 180                                 // if the host (runtime) hasn't provided it's own evidence...
 181                                 if (_evidence == null) {
 182                                         // ... we will provide our own
 183                                         lock (this) {
 184                                                 // the executed assembly from the "default" appdomain
 185                                                 // or null if we're not in the default appdomain or
 186                                                 // if there is no entry assembly (embedded mono)
 187                                                 Assembly a = Assembly.GetEntryAssembly ();
 188                                                 if (a == null) {
 189                                                         if (this == DefaultDomain)
 190                                                                 // mono is embedded
 191                                                                 return new Evidence ();
 192                                                         else
 193                                                                 _evidence = AppDomain.DefaultDomain.Evidence;
 194                                                 } else {
 195                                                         _evidence = Evidence.GetDefaultHostEvidence (a);
 196                                                 }
 197                                         }
 198                                 }
 199                                 return new Evidence (_evidence);        // return a copy
 200                         }
 201                 }
 202
 203                 internal IPrincipal DefaultPrincipal {
 204                         get {
 205                                 if (_principal == null) {
 206                                         switch (_principalPolicy) {
 207                                                 case PrincipalPolicy.UnauthenticatedPrincipal:
 208                                                         _principal = new GenericPrincipal (
 209                                                                 new GenericIdentity (String.Empty, String.Empty), null);
 210                                                         break;
 211                                                 case PrincipalPolicy.WindowsPrincipal:
 212                                                         _principal = new WindowsPrincipal (WindowsIdentity.GetCurrent ());
 213                                                         break;
 214                                         }
 215                                 }
 216                                 return _principal;
 217                         }
 218                 }
 219
 220                 // for AppDomain there is only an allowed (i.e. granted) set
 221                 // http://msdn.microsoft.com/library/en-us/cpguide/html/cpcondetermininggrantedpermissions.asp
 222                 internal PermissionSet GrantedPermissionSet {
 223                         get { return _granted; }
 224                 }
 225 #endif
 226                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 227                 private static extern AppDomain getCurDomain ();
 228
 229                 public static AppDomain CurrentDomain {
 230                         get {
 231                                 return getCurDomain ();
 232                         }
 233                 }
 234
 235                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 236                 private static extern AppDomain getRootDomain ();
 237
 238                 internal static AppDomain DefaultDomain {
 239                         get {
 240                                 if (default_domain == null) {
 241                                         AppDomain rd = getRootDomain ();
 242                                         if (rd == CurrentDomain)
 243                                                 default_domain = rd;
 244                                         else
 245                                                 default_domain = (AppDomain) RemotingServices.GetDomainProxy (rd);
 246                                 }
 247                                 return default_domain;
 248                         }
 249                 }
 250
 251 #if !MOONLIGHT
 252
 253                 [Obsolete ("AppDomain.AppendPrivatePath has been deprecated. Please investigate the use of AppDomainSetup.PrivateBinPath instead.")]
 254                 [SecurityPermission (SecurityAction.LinkDemand, ControlAppDomain = true)]
 255                 public void AppendPrivatePath (string path)
 256                 {
 257                         if (path == null || path.Length == 0)
 258                                 return;
 259
 260                         AppDomainSetup setup = SetupInformationNoCopy;
 261
 262                         string pp = setup.PrivateBinPath;
 263                         if (pp == null || pp.Length == 0) {
 264                                 setup.PrivateBinPath = path;
 265                                 return;
 266                         }
 267
 268                         pp = pp.Trim ();
 269                         if (pp [pp.Length - 1] != Path.PathSeparator)
 270                                 pp += Path.PathSeparator;
 271
 272                         setup.PrivateBinPath = pp + path;
 273                 }
 274
 275                 [Obsolete ("AppDomain.ClearPrivatePath has been deprecated. Please investigate the use of AppDomainSetup.PrivateBinPath instead.")]
 276                 [SecurityPermission (SecurityAction.LinkDemand, ControlAppDomain = true)]
 277                 public void ClearPrivatePath ()
 278                 {
 279                         SetupInformationNoCopy.PrivateBinPath = String.Empty;
 280                 }
 281
 282                 [Obsolete ("Use AppDomainSetup.ShadowCopyDirectories")]
 283                 [SecurityPermission (SecurityAction.LinkDemand, ControlAppDomain = true)]
 284                 public void ClearShadowCopyPath ()
 285                 {
 286                         SetupInformationNoCopy.ShadowCopyDirectories = String.Empty;
 287                 }
 288
 289 #if !NET_2_1
 290                 public ObjectHandle CreateComInstanceFrom (string assemblyName, string typeName)
 291                 {
 292                         return Activator.CreateComInstanceFrom (assemblyName, typeName);
 293                 }
 294
 295                 public ObjectHandle CreateComInstanceFrom (string assemblyFile, string typeName,
 296                         byte [] hashValue, AssemblyHashAlgorithm hashAlgorithm)
 297                 {
 298                         return Activator.CreateComInstanceFrom (assemblyFile, typeName, hashValue ,hashAlgorithm);
 299                 }
 300 #endif
 301
 302                 public ObjectHandle CreateInstance (string assemblyName, string typeName)
 303                 {
 304                         if (assemblyName == null)
 305                                 throw new ArgumentNullException ("assemblyName");
 306
 307                         return Activator.CreateInstance (assemblyName, typeName);
 308                 }
 309
 310                 public ObjectHandle CreateInstance (string assemblyName, string typeName, object[] activationAttributes)
 311                 {
 312                         if (assemblyName == null)
 313                                 throw new ArgumentNullException ("assemblyName");
 314
 315                         return Activator.CreateInstance (assemblyName, typeName, activationAttributes);
 316                 }
 317
 318 #if NET_4_0
 319                 [Obsolete ("Use an overload that does not take an Evidence parameter")]
 320 #endif
 321                 public ObjectHandle CreateInstance (string assemblyName, string typeName, bool ignoreCase, BindingFlags bindingAttr,
 322                                                     Binder binder, object[] args, CultureInfo culture, object[] activationAttributes,
 323                                                     Evidence securityAttributes)
 324                 {
 325                         if (assemblyName == null)
 326                                 throw new ArgumentNullException ("assemblyName");
 327
 328                         return Activator.CreateInstance (assemblyName, typeName, ignoreCase, bindingAttr, binder, args,
 329                                 culture, activationAttributes, securityAttributes);
 330                 }
 331
 332                 public object CreateInstanceAndUnwrap (string assemblyName, string typeName)
 333                 {
 334                         ObjectHandle oh = CreateInstance (assemblyName, typeName);
 335                         return (oh != null) ? oh.Unwrap () : null;
 336                 }
 337
 338                 public object CreateInstanceAndUnwrap (string assemblyName, string typeName, object [] activationAttributes)
 339                 {
 340                         ObjectHandle oh = CreateInstance (assemblyName, typeName, activationAttributes);
 341                         return (oh != null) ? oh.Unwrap () : null;
 342                 }
 343
 344 #if NET_4_0
 345                 [Obsolete ("Use an overload that does not take an Evidence parameter")]
 346 #endif
 347                 public object CreateInstanceAndUnwrap (string assemblyName, string typeName, bool ignoreCase,
 348                                                        BindingFlags bindingAttr, Binder binder, object[] args, CultureInfo culture,
 349                                                        object[] activationAttributes, Evidence securityAttributes)
 350                 {
 351                         ObjectHandle oh = CreateInstance (assemblyName, typeName, ignoreCase, bindingAttr, binder, args,
 352                                 culture, activationAttributes, securityAttributes);
 353                         return (oh != null) ? oh.Unwrap () : null;
 354                 }
 355
 356 #if NET_4_0
 357                 public ObjectHandle CreateInstance (string assemblyName, string typeName, bool ignoreCase, BindingFlags bindingAttr,
 358                                                     Binder binder, object[] args, CultureInfo culture, object[] activationAttributes)
 359                 {
 360                         if (assemblyName == null)
 361                                 throw new ArgumentNullException ("assemblyName");
 362
 363                         return Activator.CreateInstance (assemblyName, typeName, ignoreCase, bindingAttr, binder, args,
 364                                 culture, activationAttributes, null);
 365                 }
 366                 public object CreateInstanceAndUnwrap (string assemblyName, string typeName, bool ignoreCase,
 367                                                        BindingFlags bindingAttr, Binder binder, object[] args, CultureInfo culture,
 368                                                        object[] activationAttributes)
 369                 {
 370                         ObjectHandle oh = CreateInstance (assemblyName, typeName, ignoreCase, bindingAttr, binder, args,
 371                                 culture, activationAttributes);
 372                         return (oh != null) ? oh.Unwrap () : null;
 373                 }
 374
 375                 public ObjectHandle CreateInstanceFrom (string assemblyFile, string typeName, bool ignoreCase,
 376                                                         BindingFlags bindingAttr, Binder binder, object[] args, CultureInfo culture,
 377                                                         object[] activationAttributes)
 378                 {
 379                         if (assemblyFile == null)
 380                                 throw new ArgumentNullException ("assemblyFile");
 381
 382                         return Activator.CreateInstanceFrom (assemblyFile, typeName, ignoreCase, bindingAttr, binder, args,
 383                                                              culture, activationAttributes, null);
 384                 }
 385
 386                 public object CreateInstanceFromAndUnwrap (string assemblyName, string typeName, bool ignoreCase,
 387                                                            BindingFlags bindingAttr, Binder binder, object[] args,
 388                                                            CultureInfo culture, object[] activationAttributes)
 389                 {
 390                         ObjectHandle oh = CreateInstanceFrom (assemblyName, typeName, ignoreCase, bindingAttr, binder, args,
 391                                 culture, activationAttributes);
 392
 393                         return (oh != null) ? oh.Unwrap () : null;
 394                 }
 395 #endif
 396
 397                 public ObjectHandle CreateInstanceFrom (string assemblyFile, string typeName)
 398                 {
 399                         if (assemblyFile == null)
 400                                 throw new ArgumentNullException ("assemblyFile");
 401
 402                         return Activator.CreateInstanceFrom (assemblyFile, typeName);
 403                 }
 404
 405                 public ObjectHandle CreateInstanceFrom (string assemblyFile, string typeName, object[] activationAttributes)
 406                 {
 407                         if (assemblyFile == null)
 408                                 throw new ArgumentNullException ("assemblyFile");
 409
 410                         return Activator.CreateInstanceFrom (assemblyFile, typeName, activationAttributes);
 411                 }
 412
 413 #if NET_4_0
 414                 [Obsolete ("Use an overload that does not take an Evidence parameter")]
 415 #endif
 416                 public ObjectHandle CreateInstanceFrom (string assemblyFile, string typeName, bool ignoreCase,
 417                                                         BindingFlags bindingAttr, Binder binder, object[] args, CultureInfo culture,
 418                                                         object[] activationAttributes, Evidence securityAttributes)
 419                 {
 420                         if (assemblyFile == null)
 421                                 throw new ArgumentNullException ("assemblyFile");
 422
 423                         return Activator.CreateInstanceFrom (assemblyFile, typeName, ignoreCase, bindingAttr, binder, args,
 424                                                              culture, activationAttributes, securityAttributes);
 425                 }
 426
 427                 public object CreateInstanceFromAndUnwrap (string assemblyName, string typeName)
 428                 {
 429                         ObjectHandle oh = CreateInstanceFrom (assemblyName, typeName);
 430                         return (oh != null) ? oh.Unwrap () : null;
 431                 }
 432
 433                 public object CreateInstanceFromAndUnwrap (string assemblyName, string typeName, object [] activationAttributes)
 434                 {
 435                         ObjectHandle oh = CreateInstanceFrom (assemblyName, typeName, activationAttributes);
 436                         return (oh != null) ? oh.Unwrap () : null;
 437                 }
 438
 439 #if NET_4_0
 440                 [Obsolete ("Use an overload that does not take an Evidence parameter")]
 441 #endif
 442                 public object CreateInstanceFromAndUnwrap (string assemblyName, string typeName, bool ignoreCase,
 443                                                            BindingFlags bindingAttr, Binder binder, object[] args,
 444                                                            CultureInfo culture, object[] activationAttributes,
 445                                                            Evidence securityAttributes)
 446                 {
 447                         ObjectHandle oh = CreateInstanceFrom (assemblyName, typeName, ignoreCase, bindingAttr, binder, args,
 448                                 culture, activationAttributes, securityAttributes);
 449
 450                         return (oh != null) ? oh.Unwrap () : null;
 451                 }
 452
 453 #endif // !NET_2_1
 454
 455                 public AssemblyBuilder DefineDynamicAssembly (AssemblyName name, AssemblyBuilderAccess access)
 456                 {
 457                         return DefineDynamicAssembly (name, access, null, null, null, null, null, false);
 458                 }
 459
 460 #if NET_4_0
 461                 [Obsolete ("Declarative security for assembly level is no longer enforced")]
 462 #endif
 463                 public AssemblyBuilder DefineDynamicAssembly (AssemblyName name, AssemblyBuilderAccess access, Evidence evidence)
 464                 {
 465                         return DefineDynamicAssembly (name, access, null, evidence, null, null, null, false);
 466                 }
 467
 468                 public AssemblyBuilder DefineDynamicAssembly (AssemblyName name, AssemblyBuilderAccess access, string dir)
 469                 {
 470                         return DefineDynamicAssembly (name, access, dir, null, null, null, null, false);
 471                 }
 472
 473 #if NET_4_0
 474                 [Obsolete ("Declarative security for assembly level is no longer enforced")]
 475 #endif
 476                 public AssemblyBuilder DefineDynamicAssembly (AssemblyName name, AssemblyBuilderAccess access, string dir,
 477                                                               Evidence evidence)
 478                 {
 479                         return DefineDynamicAssembly (name, access, dir, evidence, null, null, null, false);
 480                 }
 481
 482 #if NET_4_0
 483                 [Obsolete ("Declarative security for assembly level is no longer enforced")]
 484 #endif
 485                 public AssemblyBuilder DefineDynamicAssembly (AssemblyName name, AssemblyBuilderAccess access,
 486                                                               PermissionSet requiredPermissions,
 487                                                               PermissionSet optionalPermissions,
 488                                                               PermissionSet refusedPermissions)
 489                 {
 490                         return DefineDynamicAssembly (name, access, null, null, requiredPermissions, optionalPermissions,
 491                                 refusedPermissions, false);
 492                 }
 493
 494 #if NET_4_0
 495                 [Obsolete ("Declarative security for assembly level is no longer enforced")]
 496 #endif
 497                 public AssemblyBuilder DefineDynamicAssembly (AssemblyName name, AssemblyBuilderAccess access, Evidence evidence,
 498                                                               PermissionSet requiredPermissions,
 499                                                               PermissionSet optionalPermissions,
 500                                                               PermissionSet refusedPermissions)
 501                 {
 502                         return DefineDynamicAssembly (name, access, null, evidence, requiredPermissions, optionalPermissions,
 503                                 refusedPermissions, false);
 504                 }
 505
 506 #if NET_4_0
 507                 [Obsolete ("Declarative security for assembly level is no longer enforced")]
 508 #endif
 509                 public AssemblyBuilder DefineDynamicAssembly (AssemblyName name, AssemblyBuilderAccess access, string dir,
 510                                                               PermissionSet requiredPermissions,
 511                                                               PermissionSet optionalPermissions,
 512                                                               PermissionSet refusedPermissions)
 513                 {
 514                         return DefineDynamicAssembly (name, access, dir, null, requiredPermissions, optionalPermissions,
 515                                 refusedPermissions, false);
 516                 }
 517
 518 #if NET_4_0
 519                 [Obsolete ("Declarative security for assembly level is no longer enforced")]
 520 #endif
 521                 public AssemblyBuilder DefineDynamicAssembly (AssemblyName name, AssemblyBuilderAccess access, string dir,
 522                                                               Evidence evidence,
 523                                                               PermissionSet requiredPermissions,
 524                                                               PermissionSet optionalPermissions,
 525                                                               PermissionSet refusedPermissions)
 526                 {
 527                         return DefineDynamicAssembly (name, access, dir, evidence, requiredPermissions, optionalPermissions,
 528                                 refusedPermissions, false);
 529                 }
 530
 531 #if NET_4_0
 532                 [Obsolete ("Declarative security for assembly level is no longer enforced")]
 533 #endif
 534                 public AssemblyBuilder DefineDynamicAssembly (AssemblyName name, AssemblyBuilderAccess access, string dir,
 535                                                               Evidence evidence,
 536                                                               PermissionSet requiredPermissions,
 537                                                               PermissionSet optionalPermissions,
 538                                                               PermissionSet refusedPermissions, bool isSynchronized)
 539                 {
 540                         if (name == null)
 541                                 throw new ArgumentNullException ("name");
 542                         ValidateAssemblyName (name.Name);
 543
 544                         // FIXME: examine all other parameters
 545
 546                         AssemblyBuilder ab = new AssemblyBuilder (name, dir, access, false);
 547                         ab.AddPermissionRequests (requiredPermissions, optionalPermissions, refusedPermissions);
 548                         return ab;
 549                 }
 550
 551                 // NET 3.5 method
 552 #if NET_4_0
 553                 [Obsolete ("Declarative security for assembly level is no longer enforced")]
 554 #endif
 555                 public AssemblyBuilder DefineDynamicAssembly (AssemblyName name, AssemblyBuilderAccess access, string dir,
 556                                                               Evidence evidence,
 557                                                               PermissionSet requiredPermissions,
 558                                                               PermissionSet optionalPermissions,
 559                                                               PermissionSet refusedPermissions, bool isSynchronized, IEnumerable<CustomAttributeBuilder> assemblyAttributes)
 560                 {
 561                         AssemblyBuilder ab = DefineDynamicAssembly (name, access, dir, evidence, requiredPermissions, optionalPermissions, refusedPermissions, isSynchronized);
 562                         if (assemblyAttributes != null)
 563                                 foreach (CustomAttributeBuilder cb in assemblyAttributes) {
 564                                         ab.SetCustomAttribute (cb);
 565                                 }
 566                         return ab;
 567                 }
 568
 569                 // NET 3.5 method
 570                 public AssemblyBuilder DefineDynamicAssembly (AssemblyName name, AssemblyBuilderAccess access, IEnumerable<CustomAttributeBuilder> assemblyAttributes) {
 571                         return DefineDynamicAssembly (name, access, null, null, null, null, null, false, assemblyAttributes);
 572                 }
 573
 574                 internal AssemblyBuilder DefineInternalDynamicAssembly (AssemblyName name, AssemblyBuilderAccess access)
 575                 {
 576                         return new AssemblyBuilder (name, null, access, true);
 577                 }
 578
 579                 //
 580                 // AppDomain.DoCallBack works because AppDomain is a MarshalByRefObject
 581                 // so, when you call AppDomain.DoCallBack, that's a remote call
 582                 //
 583                 public void DoCallBack (CrossAppDomainDelegate callBackDelegate)
 584                 {
 585                         if (callBackDelegate != null)
 586                                 callBackDelegate ();
 587                 }
 588
 589                 public int ExecuteAssembly (string assemblyFile)
 590                 {
 591                         return ExecuteAssembly (assemblyFile, (Evidence)null, null);
 592                 }
 593
 594 #if NET_4_0
 595                 [Obsolete ("Use an overload that does not take an Evidence parameter")]
 596 #endif
 597                 public int ExecuteAssembly (string assemblyFile, Evidence assemblySecurity)
 598                 {
 599                         return ExecuteAssembly (assemblyFile, assemblySecurity, null);
 600                 }
 601
 602 #if NET_4_0
 603                 [Obsolete ("Use an overload that does not take an Evidence parameter")]
 604 #endif
 605                 public int ExecuteAssembly (string assemblyFile, Evidence assemblySecurity, string[] args)
 606                 {
 607                         Assembly a = Assembly.LoadFrom (assemblyFile, assemblySecurity);
 608                         return ExecuteAssemblyInternal (a, args);
 609                 }
 610
 611 #if NET_4_0
 612                 [Obsolete ("Use an overload that does not take an Evidence parameter")]
 613 #endif
 614                 public int ExecuteAssembly (string assemblyFile, Evidence assemblySecurity, string[] args, byte[] hashValue, AssemblyHashAlgorithm hashAlgorithm)
 615                 {
 616                         Assembly a = Assembly.LoadFrom (assemblyFile, assemblySecurity, hashValue, hashAlgorithm);
 617                         return ExecuteAssemblyInternal (a, args);
 618                 }
 619
 620
 621 #if NET_4_0
 622                 public int ExecuteAssembly (string assemblyFile, string[] args)
 623                 {
 624                         Assembly a = Assembly.LoadFrom (assemblyFile, null);
 625                         return ExecuteAssemblyInternal (a, args);
 626                 }
 627
 628                 public int ExecuteAssembly (string assemblyFile, string[] args, byte[] hashValue, AssemblyHashAlgorithm hashAlgorithm)
 629                 {
 630                         Assembly a = Assembly.LoadFrom (assemblyFile, null, hashValue, hashAlgorithm);
 631                         return ExecuteAssemblyInternal (a, args);
 632                 }
 633 #endif
 634
 635                 int ExecuteAssemblyInternal (Assembly a, string[] args)
 636                 {
 637                         if (a.EntryPoint == null)
 638                                 throw new MissingMethodException ("Entry point not found in assembly '" + a.FullName + "'.");
 639                         return ExecuteAssembly (a, args);
 640                 }
 641
 642                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 643                 private extern int ExecuteAssembly (Assembly a, string[] args);
 644
 645                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 646                 private extern Assembly [] GetAssemblies (bool refOnly);
 647
 648                 public Assembly [] GetAssemblies ()
 649                 {
 650                         return GetAssemblies (false);
 651                 }
 652
 653                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 654                 public extern object GetData (string name);
 655
 656                 public new Type GetType()
 657                 {
 658                         return base.GetType ();
 659                 }
 660
 661                 public override object InitializeLifetimeService ()
 662                 {
 663                         return null;
 664                 }
 665
 666                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 667                 internal extern Assembly LoadAssembly (string assemblyRef, Evidence securityEvidence, bool refOnly);
 668
 669                 public Assembly Load (AssemblyName assemblyRef)
 670                 {
 671                         return Load (assemblyRef, null);
 672                 }
 673
 674                 internal Assembly LoadSatellite (AssemblyName assemblyRef, bool throwOnError)
 675                 {
 676                         if (assemblyRef == null)
 677                                 throw new ArgumentNullException ("assemblyRef");
 678
 679                         Assembly result = LoadAssembly (assemblyRef.FullName, null, false);
 680                         if (result == null && throwOnError)
 681                                 throw new FileNotFoundException (null, assemblyRef.Name);
 682                         return result;
 683                 }
 684
 685 #if NET_4_0
 686                 [Obsolete ("Use an overload that does not take an Evidence parameter")]
 687 #endif
 688                 public Assembly Load (AssemblyName assemblyRef, Evidence assemblySecurity)
 689                 {
 690                         if (assemblyRef == null)
 691                                 throw new ArgumentNullException ("assemblyRef");
 692
 693                         if (assemblyRef.Name == null || assemblyRef.Name.Length == 0) {
 694                                 if (assemblyRef.CodeBase != null)
 695                                         return Assembly.LoadFrom (assemblyRef.CodeBase, assemblySecurity);
 696                                 else
 697                                         throw new ArgumentException (Locale.GetText ("assemblyRef.Name cannot be empty."), "assemblyRef");
 698                         }
 699
 700                         Assembly assembly = LoadAssembly (assemblyRef.FullName, assemblySecurity, false);
 701                         if (assembly != null)
 702                                 return assembly;
 703
 704                         if (assemblyRef.CodeBase == null)
 705                                 throw new FileNotFoundException (null, assemblyRef.Name);
 706
 707                         string cb = assemblyRef.CodeBase;
 708                         if (cb.ToLower (CultureInfo.InvariantCulture).StartsWith ("file://"))
 709                                 cb = new Mono.Security.Uri (cb).LocalPath;
 710
 711                         try {
 712                                 assembly = Assembly.LoadFrom (cb, assemblySecurity);
 713                         } catch {
 714                                 throw new FileNotFoundException (null, assemblyRef.Name);
 715                         }
 716                         AssemblyName aname = assembly.GetName ();
 717                         // Name, version, culture, publickeytoken. Anything else?
 718                         if (assemblyRef.Name != aname.Name)
 719                                 throw new FileNotFoundException (null, assemblyRef.Name);
 720
 721                         if (assemblyRef.Version != new Version () && assemblyRef.Version != aname.Version)
 722                                 throw new FileNotFoundException (null, assemblyRef.Name);
 723
 724                         if (assemblyRef.CultureInfo != null && assemblyRef.CultureInfo.Equals (aname))
 725                                 throw new FileNotFoundException (null, assemblyRef.Name);
 726
 727                         byte [] pt = assemblyRef.GetPublicKeyToken ();
 728                         if (pt != null) {
 729                                 byte [] loaded_pt = aname.GetPublicKeyToken ();
 730                                 if (loaded_pt == null || (pt.Length != loaded_pt.Length))
 731                                         throw new FileNotFoundException (null, assemblyRef.Name);
 732                                 for (int i = pt.Length - 1; i >= 0; i--)
 733                                         if (loaded_pt [i] != pt [i])
 734                                                 throw new FileNotFoundException (null, assemblyRef.Name);
 735                         }
 736                         return assembly;
 737                 }
 738
 739                 public Assembly Load (string assemblyString)
 740                 {
 741                         return Load (assemblyString, null, false);
 742                 }
 743
 744 #if NET_4_0
 745                 [Obsolete ("Use an overload that does not take an Evidence parameter")]
 746 #endif
 747                 public Assembly Load (string assemblyString, Evidence assemblySecurity)
 748                 {
 749                         return Load (assemblyString, assemblySecurity, false);
 750                 }
 751
 752                 internal Assembly Load (string assemblyString, Evidence assemblySecurity, bool refonly)
 753                 {
 754                         if (assemblyString == null)
 755                                 throw new ArgumentNullException ("assemblyString");
 756
 757                         if (assemblyString.Length == 0)
 758                                 throw new ArgumentException ("assemblyString cannot have zero length");
 759
 760                         Assembly assembly = LoadAssembly (assemblyString, assemblySecurity, refonly);
 761                         if (assembly == null)
 762                                 throw new FileNotFoundException (null, assemblyString);
 763                         return assembly;
 764                 }
 765
 766                 public Assembly Load (byte[] rawAssembly)
 767                 {
 768                         return Load (rawAssembly, null, null);
 769                 }
 770
 771                 public Assembly Load (byte[] rawAssembly, byte[] rawSymbolStore)
 772                 {
 773                         return Load (rawAssembly, rawSymbolStore, null);
 774                 }
 775
 776                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 777                 internal extern Assembly LoadAssemblyRaw (byte[] rawAssembly, byte[] rawSymbolStore, Evidence securityEvidence, bool refonly);
 778
 779 #if NET_4_0
 780                 [Obsolete ("Use an overload that does not take an Evidence parameter")]
 781 #endif
 782                 public Assembly Load (byte[] rawAssembly, byte[] rawSymbolStore, Evidence securityEvidence)
 783                 {
 784                         return Load (rawAssembly, rawSymbolStore, securityEvidence, false);
 785                 }
 786
 787                 internal Assembly Load (byte [] rawAssembly, byte [] rawSymbolStore, Evidence securityEvidence, bool refonly)
 788                 {
 789                         if (rawAssembly == null)
 790                                 throw new ArgumentNullException ("rawAssembly");
 791
 792                         Assembly assembly = LoadAssemblyRaw (rawAssembly, rawSymbolStore, securityEvidence, refonly);
 793                         assembly.FromByteArray = true;
 794                         return assembly;
 795                 }
 796 #if !MOONLIGHT
 797 #if NET_4_0
 798                 [Obsolete ("AppDomain policy levels are obsolete")]
 799 #endif
 800                 [SecurityPermission (SecurityAction.Demand, ControlPolicy = true)]
 801                 public void SetAppDomainPolicy (PolicyLevel domainPolicy)
 802                 {
 803                         if (domainPolicy == null)
 804                                 throw new ArgumentNullException ("domainPolicy");
 805                         if (_granted != null) {
 806                                 throw new PolicyException (Locale.GetText (
 807                                         "An AppDomain policy is already specified."));
 808                         }
 809                         if (IsFinalizingForUnload ())
 810                                 throw new AppDomainUnloadedException ();
 811
 812                         PolicyStatement ps = domainPolicy.Resolve (_evidence);
 813                         _granted = ps.PermissionSet;
 814                 }
 815
 816                 [Obsolete ("Use AppDomainSetup.SetCachePath")]
 817                 [SecurityPermission (SecurityAction.LinkDemand, ControlAppDomain = true)]
 818                 public void SetCachePath (string path)
 819                 {
 820                         SetupInformationNoCopy.CachePath = path;
 821                 }
 822
 823                 [SecurityPermission (SecurityAction.Demand, ControlPrincipal = true)]
 824                 public void SetPrincipalPolicy (PrincipalPolicy policy)
 825                 {
 826                         if (IsFinalizingForUnload ())
 827                                 throw new AppDomainUnloadedException ();
 828
 829                         _principalPolicy = policy;
 830                         _principal = null;
 831                 }
 832
 833                 [Obsolete ("Use AppDomainSetup.ShadowCopyFiles")]
 834                 [SecurityPermission (SecurityAction.LinkDemand, ControlAppDomain = true)]
 835                 public void SetShadowCopyFiles()
 836                 {
 837                         SetupInformationNoCopy.ShadowCopyFiles = "true";
 838                 }
 839
 840                 [Obsolete ("Use AppDomainSetup.ShadowCopyDirectories")]
 841                 [SecurityPermission (SecurityAction.LinkDemand, ControlAppDomain = true)]
 842                 public void SetShadowCopyPath (string path)
 843                 {
 844                         SetupInformationNoCopy.ShadowCopyDirectories = path;
 845                 }
 846
 847                 [SecurityPermission (SecurityAction.Demand, ControlPrincipal = true)]
 848                 public void SetThreadPrincipal (IPrincipal principal)
 849                 {
 850                         if (principal == null)
 851                                 throw new ArgumentNullException ("principal");
 852                         if (_principal != null)
 853                                 throw new PolicyException (Locale.GetText ("principal already present."));
 854                         if (IsFinalizingForUnload ())
 855                                 throw new AppDomainUnloadedException ();
 856
 857                         _principal = principal;
 858                 }
 859 #endif
 860                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 861                 private static extern AppDomain InternalSetDomainByID (int domain_id);
 862
 863                 // Changes the active domain and returns the old domain
 864                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 865                 private static extern AppDomain InternalSetDomain (AppDomain context);
 866
 867                 // Notifies the runtime that this thread references 'domain'.
 868                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 869                 internal static extern void InternalPushDomainRef (AppDomain domain);
 870
 871                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 872                 internal static extern void InternalPushDomainRefByID (int domain_id);
 873
 874                 // Undoes the effect of the last PushDomainRef call
 875                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 876                 internal static extern void InternalPopDomainRef ();
 877
 878                 // Changes the active context and returns the old context
 879                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 880                 internal static extern Context InternalSetContext (Context context);
 881
 882                 // Returns the current context
 883                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 884                 internal static extern Context InternalGetContext ();
 885
 886                 // Returns the current context
 887                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 888                 internal static extern Context InternalGetDefaultContext ();
 889
 890                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 891                 internal static extern string InternalGetProcessGuid (string newguid);
 892
 893                 // This method is handled specially by the runtime
 894                 // It is the only managed method which is allowed to set the current
 895                 // appdomain
 896                 internal static object InvokeInDomain (AppDomain domain, MethodInfo method, object obj, object [] args)
 897                 {
 898                         AppDomain current = CurrentDomain;
 899                         bool pushed = false;
 900
 901                         try {
 902                                 Exception exc;
 903                                 InternalPushDomainRef (domain);
 904                                 pushed = true;
 905                                 InternalSetDomain (domain);
 906                                 object o = ((MonoMethod) method).InternalInvoke (obj, args, out exc);
 907                                 if (exc != null)
 908                                         throw exc;
 909                                 return o;
 910                         }
 911                         finally {
 912                                 InternalSetDomain (current);
 913                                 if (pushed)
 914                                         InternalPopDomainRef ();
 915                         }
 916                 }
 917
 918                 internal static object InvokeInDomainByID (int domain_id, MethodInfo method, object obj, object [] args)
 919                 {
 920                         AppDomain current = CurrentDomain;
 921                         bool pushed = false;
 922
 923                         try {
 924                                 Exception exc;
 925                                 InternalPushDomainRefByID (domain_id);
 926                                 pushed = true;
 927                                 InternalSetDomainByID (domain_id);
 928                                 object o = ((MonoMethod) method).InternalInvoke (obj, args, out exc);
 929                                 if (exc != null)
 930                                         throw exc;
 931                                 return o;
 932                         }
 933                         finally {
 934                                 InternalSetDomain (current);
 935                                 if (pushed)
 936                                         InternalPopDomainRef ();
 937                         }
 938                 }
 939
 940                 internal static String GetProcessGuid ()
 941                 {
 942                         if (_process_guid == null) {
 943                                 _process_guid = InternalGetProcessGuid (Guid.NewGuid().ToString ());
 944                         }
 945                         return _process_guid;
 946                 }
 947
 948 #if !MOONLIGHT
 949
 950                 public static AppDomain CreateDomain (string friendlyName)
 951                 {
 952                         return CreateDomain (friendlyName, null, null);
 953                 }
 954
 955                 public static AppDomain CreateDomain (string friendlyName, Evidence securityInfo)
 956                 {
 957                         return CreateDomain (friendlyName, securityInfo, null);
 958                 }
 959
 960                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
 961                 private static extern AppDomain createDomain (string friendlyName, AppDomainSetup info);
 962
 963                 [MonoLimitationAttribute ("Currently it does not allow the setup in the other domain")]
 964                 [SecurityPermission (SecurityAction.Demand, ControlAppDomain = true)]
 965                 public static AppDomain CreateDomain (string friendlyName, Evidence securityInfo, AppDomainSetup info)
 966                 {
 967                         if (friendlyName == null)
 968                                 throw new System.ArgumentNullException ("friendlyName");
 969
 970                         AppDomain def = AppDomain.DefaultDomain;
 971                         if (info == null) {
 972                                 // if null, get default domain's SetupInformation
 973                                 if (def == null)
 974                                         info = new AppDomainSetup ();   // we're default!
 975                                 else
 976                                         info = def.SetupInformation;
 977                         }
 978                         else
 979                                 info = new AppDomainSetup (info);       // copy
 980
 981                         // todo: allow setup in the other domain
 982                         if (def != null) {
 983                                 if (!info.Equals (def.SetupInformation)) {
 984                                         // If not specified use default domain's app base.
 985                                         if (info.ApplicationBase == null)
 986                                                 info.ApplicationBase = def.SetupInformation.ApplicationBase;
 987                                         if (info.ConfigurationFile == null)
 988                                                 info.ConfigurationFile = Path.GetFileName (def.SetupInformation.ConfigurationFile);
 989                                 }
 990                         } else if (info.ConfigurationFile == null)
 991                                 info.ConfigurationFile = "[I don't have a config file]";
 992
 993 #if !NET_2_1
 994                         if (info.AppDomainInitializer != null) {
 995                                 if (!info.AppDomainInitializer.Method.IsStatic)
 996                                         throw new ArgumentException ("Non-static methods cannot be invoked as an appdomain initializer");
 997                         }
 998 #endif
 999
1000                         info.SerializeNonPrimitives ();
1001
1002                         AppDomain ad = (AppDomain) RemotingServices.GetDomainProxy (createDomain (friendlyName, info));
1003                         if (securityInfo == null) {
1004                                 // get default domain's Evidence (unless we're are the default!)
1005                                 if (def == null)
1006                                         ad._evidence = null;            // we'll get them later (GetEntryAssembly)
1007                                 else
1008                                         ad._evidence = def.Evidence;    // new (shallow) copy
1009                         }
1010                         else
1011                                 ad._evidence = new Evidence (securityInfo);     // copy
1012
1013 #if !NET_2_1
1014                         if (info.AppDomainInitializer != null) {
1015                                 Loader loader = new Loader (
1016                                         info.AppDomainInitializer.Method.DeclaringType.Assembly.Location);
1017                                 ad.DoCallBack (loader.Load);
1018
1019                                 Initializer initializer = new Initializer (
1020                                         info.AppDomainInitializer,
1021                                         info.AppDomainInitializerArguments);
1022                                 ad.DoCallBack (initializer.Initialize);
1023                         }
1024 #endif
1025
1026                         return ad;
1027                 }
1028
1029 #if !NET_2_1
1030                 [Serializable]
1031                 class Loader {
1032
1033                         string assembly;
1034
1035                         public Loader (string assembly)
1036                         {
1037                                 this.assembly = assembly;
1038                         }
1039
1040                         public void Load ()
1041                         {
1042                                 Assembly.LoadFrom (assembly);
1043                         }
1044                 }
1045
1046                 [Serializable]
1047                 class Initializer {
1048
1049                         AppDomainInitializer initializer;
1050                         string [] arguments;
1051
1052                         public Initializer (AppDomainInitializer initializer, string [] arguments)
1053                         {
1054                                 this.initializer = initializer;
1055                                 this.arguments = arguments;
1056                         }
1057
1058                         public void Initialize ()
1059                         {
1060                                 initializer (arguments);
1061                         }
1062                 }
1063 #endif
1064
1065                 public static AppDomain CreateDomain (string friendlyName, Evidence securityInfo,string appBasePath,
1066                                                       string appRelativeSearchPath, bool shadowCopyFiles)
1067                 {
1068                         return CreateDomain (friendlyName, securityInfo, CreateDomainSetup (appBasePath, appRelativeSearchPath, shadowCopyFiles));
1069                 }
1070
1071 #if !NET_2_1
1072                 public static AppDomain CreateDomain (string friendlyName, Evidence securityInfo, AppDomainSetup info,
1073                                                       PermissionSet grantSet, params StrongName [] fullTrustAssemblies)
1074                 {
1075                         if (info == null)
1076                                 throw new ArgumentNullException ("info");
1077
1078                         info.ApplicationTrust = new ApplicationTrust (grantSet, fullTrustAssemblies ?? new StrongName [0]);
1079                         return CreateDomain (friendlyName, securityInfo, info);
1080                 }
1081 #endif
1082
1083                 static AppDomainSetup CreateDomainSetup (string appBasePath, string appRelativeSearchPath, bool shadowCopyFiles)
1084                 {
1085                         AppDomainSetup info = new AppDomainSetup ();
1086
1087                         info.ApplicationBase = appBasePath;
1088                         info.PrivateBinPath = appRelativeSearchPath;
1089
1090                         if (shadowCopyFiles)
1091                                 info.ShadowCopyFiles = "true";
1092                         else
1093                                 info.ShadowCopyFiles = "false";
1094
1095                         return info;
1096                 }
1097 #endif // !NET_2_1
1098
1099                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
1100                 private static extern bool InternalIsFinalizingForUnload (int domain_id);
1101
1102                 public bool IsFinalizingForUnload()
1103                 {
1104                         return InternalIsFinalizingForUnload (getDomainID ());
1105                 }
1106
1107                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
1108                 static extern void InternalUnload (int domain_id);
1109
1110                 // We do this because if the domain is a transparant proxy this
1111                 // will still return the correct domain id.
1112                 private int getDomainID ()
1113                 {
1114                         return Thread.GetDomainID ();
1115                 }
1116
1117                 [SecurityPermission (SecurityAction.Demand, ControlAppDomain = true)]
1118                 [ReliabilityContractAttribute (Consistency.MayCorruptAppDomain, Cer.MayFail)]
1119                 public static void Unload (AppDomain domain)
1120                 {
1121                         if (domain == null)
1122                                 throw new ArgumentNullException ("domain");
1123
1124                         InternalUnload (domain.getDomainID());
1125                 }
1126
1127                 [MethodImplAttribute (MethodImplOptions.InternalCall)]
1128                 [SecurityPermission (SecurityAction.LinkDemand, ControlAppDomain = true)]
1129                 public extern void SetData (string name, object data);
1130
1131                 [MonoLimitation ("The permission field is ignored")]
1132                 public void SetData (string name, object data, IPermission permission)
1133                 {
1134                         SetData (name, data);
1135                 }
1136
1137 #if !NET_2_1
1138                 [Obsolete ("Use AppDomainSetup.DynamicBase")]
1139                 [SecurityPermission (SecurityAction.LinkDemand, ControlAppDomain = true)]
1140                 public void SetDynamicBase (string path)
1141                 {
1142                         SetupInformationNoCopy.DynamicBase = path;
1143                 }
1144 #endif // !NET_2_1
1145
1146                 [Obsolete ("AppDomain.GetCurrentThreadId has been deprecated"
1147                         + " because it does not provide a stable Id when managed"
1148                         + " threads are running on fibers (aka lightweight"
1149                         + " threads). To get a stable identifier for a managed"
1150                         + " thread, use the ManagedThreadId property on Thread.'")]
1151                 public static int GetCurrentThreadId ()
1152                 {
1153                         return Thread.CurrentThreadId;
1154                 }
1155
1156                 public override string ToString ()
1157                 {
1158 #if !MOONLIGHT
1159                         return getFriendlyName ();
1160 #else
1161                         StringBuilder sb = new StringBuilder ("Name:");
1162                         sb.AppendLine (FriendlyName);
1163                         sb.AppendLine ("There are no context policies.");
1164                         return sb.ToString ();
1165 #endif
1166                 }
1167
1168                 private static void ValidateAssemblyName (string name)
1169                 {
1170                         if (name == null || name.Length == 0)
1171                                 throw new ArgumentException ("The Name of " +
1172                                         "AssemblyName cannot be null or a " +
1173                                         "zero-length string.");
1174
1175                         bool isValid = true;
1176
1177                         for (int i = 0; i < name.Length; i++) {
1178                                 char c = name [i];
1179
1180                                 // do not allow leading whitespace
1181                                 if (i == 0 && char.IsWhiteSpace (c)) {
1182                                         isValid = false;
1183                                         break;
1184                                 }
1185
1186                                 // do not allow /,\ or : in name
1187                                 if (c == '/' || c == '\\' || c == ':') {
1188                                         isValid = false;
1189                                         break;
1190                                 }
1191                         }
1192
1193                         if (!isValid)
1194                                 throw new ArgumentException ("The Name of " +
1195                                         "AssemblyName cannot start with " +
1196                                         "whitespace, or contain '/', '\\' " +
1197                                         " or ':'.");
1198                 }
1199
1200                 // The following methods are called from the runtime. Don't change signatures.
1201 #pragma warning disable 169
1202                 private void DoAssemblyLoad (Assembly assembly)
1203                 {
1204                         if (AssemblyLoad == null)
1205                                 return;
1206
1207                         AssemblyLoad (this, new AssemblyLoadEventArgs (assembly));
1208                 }
1209
1210                 private Assembly DoAssemblyResolve (string name, bool refonly)
1211                 {
1212                         ResolveEventHandler del;
1213 #if !NET_2_1
1214                         if (refonly)
1215                                 del = ReflectionOnlyAssemblyResolve;
1216                         else
1217                                 del = AssemblyResolve;
1218 #else
1219                         del = AssemblyResolve;
1220 #endif
1221                         if (del == null)
1222                                 return null;
1223
1224                         /* Prevent infinite recursion */
1225                         Hashtable ht;
1226                         if (refonly) {
1227                                 ht = assembly_resolve_in_progress_refonly;
1228                                 if (ht == null) {
1229                                         ht = new Hashtable ();
1230                                         assembly_resolve_in_progress_refonly = ht;
1231                                 }
1232                         } else {
1233                                 ht = assembly_resolve_in_progress;
1234                                 if (ht == null) {
1235                                         ht = new Hashtable ();
1236                                         assembly_resolve_in_progress = ht;
1237                                 }
1238                         }
1239
1240                         string s = (string) ht [name];
1241                         if (s != null)
1242                                 return null;
1243                         ht [name] = name;
1244                         try {
1245                                 Delegate[] invocation_list = del.GetInvocationList ();
1246
1247                                 foreach (Delegate eh in invocation_list) {
1248                                         ResolveEventHandler handler = (ResolveEventHandler) eh;
1249                                         Assembly assembly = handler (this, new ResolveEventArgs (name));
1250                                         if (assembly != null)
1251                                                 return assembly;
1252                                 }
1253                                 return null;
1254                         }
1255                         finally {
1256                                 ht.Remove (name);
1257                         }
1258                 }
1259
1260                 internal Assembly DoTypeResolve (Object name_or_tb)
1261                 {
1262                         if (TypeResolve == null)
1263                                 return null;
1264
1265                         string name;
1266
1267                         if (name_or_tb is TypeBuilder)
1268                                 name = ((TypeBuilder) name_or_tb).FullName;
1269                         else
1270                                 name = (string) name_or_tb;
1271
1272                         /* Prevent infinite recursion */
1273                         Hashtable ht = type_resolve_in_progress;
1274                         if (ht == null) {
1275                                 ht = new Hashtable ();
1276                                 type_resolve_in_progress = ht;
1277                         }
1278
1279                         if (ht.Contains (name))
1280                                 return null;
1281                         else
1282                                 ht [name] = name;
1283
1284                         try {
1285                                 foreach (Delegate d in TypeResolve.GetInvocationList ()) {
1286                                         ResolveEventHandler eh = (ResolveEventHandler) d;
1287                                         Assembly assembly = eh (this, new ResolveEventArgs (name));
1288                                         if (assembly != null)
1289                                                 return assembly;
1290                                 }
1291                                 return null;
1292                         }
1293                         finally {
1294                                 ht.Remove (name);
1295                         }
1296                 }
1297
1298                 private void DoDomainUnload ()
1299                 {
1300                         if (DomainUnload != null)
1301                                 DomainUnload(this, null);
1302                 }
1303
1304 #if !NET_2_1
1305                 internal byte[] GetMarshalledDomainObjRef ()
1306                 {
1307                         ObjRef oref = RemotingServices.Marshal (AppDomain.CurrentDomain, null, typeof (AppDomain));
1308                         return CADSerializer.SerializeObject (oref).GetBuffer();
1309                 }
1310 #endif
1311                 internal void ProcessMessageInDomain (byte[] arrRequest, CADMethodCallMessage cadMsg,
1312                                                       out byte[] arrResponse, out CADMethodReturnMessage cadMrm)
1313                 {
1314                         IMessage reqDomMsg;
1315
1316                         if (null != arrRequest)
1317                                 reqDomMsg = CADSerializer.DeserializeMessage (new MemoryStream(arrRequest), null);
1318                         else
1319                                 reqDomMsg = new MethodCall (cadMsg);
1320
1321                         IMessage retDomMsg = ChannelServices.SyncDispatchMessage (reqDomMsg);
1322
1323                         cadMrm = CADMethodReturnMessage.Create (retDomMsg);
1324                         if (null == cadMrm) {
1325                                 arrResponse = CADSerializer.SerializeMessage (retDomMsg).GetBuffer();
1326                         }
1327                         else
1328                                 arrResponse = null;
1329                 }
1330
1331 #pragma warning restore 169
1332
1333                 // End of methods called from the runtime
1334
1335                 [method: SecurityPermission (SecurityAction.LinkDemand, ControlAppDomain = true)]
1336                 public event AssemblyLoadEventHandler AssemblyLoad;
1337
1338                 [method: SecurityPermission (SecurityAction.LinkDemand, ControlAppDomain = true)]
1339                 public event ResolveEventHandler AssemblyResolve;
1340
1341                 [method: SecurityPermission (SecurityAction.LinkDemand, ControlAppDomain = true)]
1342                 public event EventHandler DomainUnload;
1343
1344                 [method: SecurityPermission (SecurityAction.LinkDemand, ControlAppDomain = true)]
1345                 public event EventHandler ProcessExit;
1346
1347                 [method: SecurityPermission (SecurityAction.LinkDemand, ControlAppDomain = true)]
1348                 public event ResolveEventHandler ResourceResolve;
1349
1350                 [method: SecurityPermission (SecurityAction.LinkDemand, ControlAppDomain = true)]
1351                 public event ResolveEventHandler TypeResolve;
1352
1353                 [method: SecurityPermission (SecurityAction.LinkDemand, ControlAppDomain = true)]
1354                 public event UnhandledExceptionEventHandler UnhandledException;
1355
1356 #if NET_4_0 || BOOTSTRAP_NET_4_0
1357                 [MonoTODO]
1358                 public bool IsHomogenous {
1359                         get { return true; }
1360                 }
1361 #endif
1362
1363         #pragma warning disable 649
1364                 private AppDomainManager _domain_manager;
1365         #pragma warning restore 649
1366
1367                 // default is null
1368                 public AppDomainManager DomainManager {
1369                         get { return _domain_manager; }
1370                 }
1371
1372 #if (!MOONLIGHT)
1373
1374                 public event ResolveEventHandler ReflectionOnlyAssemblyResolve;
1375
1376         #pragma warning disable 649
1377                 private ActivationContext _activation;
1378                 private ApplicationIdentity _applicationIdentity;
1379         #pragma warning restore 649
1380
1381                 // properties
1382
1383                 public ActivationContext ActivationContext {
1384                         get { return _activation; }
1385                 }
1386
1387                 public ApplicationIdentity ApplicationIdentity {
1388                         get { return _applicationIdentity; }
1389                 }
1390
1391                 public int Id {
1392                         [ReliabilityContract (Consistency.WillNotCorruptState, Cer.Success)]
1393                         get { return getDomainID (); }
1394                 }
1395
1396                 // methods
1397
1398                 [MonoTODO ("This routine only returns the parameter currently")]
1399                 [ComVisible (false)]
1400                 public string ApplyPolicy (string assemblyName)
1401                 {
1402                         if (assemblyName == null)
1403                                 throw new ArgumentNullException ("assemblyName");
1404                         if (assemblyName.Length == 0) // String.Empty
1405                                 throw new ArgumentException ("assemblyName");
1406                         return assemblyName;
1407                 }
1408
1409                 // static methods
1410
1411                 public static AppDomain CreateDomain (string friendlyName, Evidence securityInfo, string appBasePath,
1412                         string appRelativeSearchPath, bool shadowCopyFiles, AppDomainInitializer adInit, string[] adInitArgs)
1413                 {
1414                         AppDomainSetup info = CreateDomainSetup (appBasePath, appRelativeSearchPath, shadowCopyFiles);
1415
1416                         info.AppDomainInitializerArguments = adInitArgs;
1417                         info.AppDomainInitializer = adInit;
1418
1419                         return CreateDomain (friendlyName, securityInfo, info);
1420                 }
1421
1422                 public int ExecuteAssemblyByName (string assemblyName)
1423                 {
1424                         return ExecuteAssemblyByName (assemblyName, (Evidence)null, null);
1425                 }
1426
1427 #if NET_4_0
1428                 [Obsolete ("Use an overload that does not take an Evidence parameter")]
1429 #endif
1430                 public int ExecuteAssemblyByName (string assemblyName, Evidence assemblySecurity)
1431                 {
1432                         return ExecuteAssemblyByName (assemblyName, assemblySecurity, null);
1433                 }
1434
1435 #if NET_4_0
1436                 [Obsolete ("Use an overload that does not take an Evidence parameter")]
1437 #endif
1438                 public int ExecuteAssemblyByName (string assemblyName, Evidence assemblySecurity, params string[] args)
1439                 {
1440                         Assembly a = Assembly.Load (assemblyName, assemblySecurity);
1441
1442                         return ExecuteAssemblyInternal (a, args);
1443                 }
1444
1445 #if NET_4_0
1446                 [Obsolete ("Use an overload that does not take an Evidence parameter")]
1447 #endif
1448                 public int ExecuteAssemblyByName (AssemblyName assemblyName, Evidence assemblySecurity, params string[] args)
1449                 {
1450                         Assembly a = Assembly.Load (assemblyName, assemblySecurity);
1451
1452                         return ExecuteAssemblyInternal (a, args);
1453                 }
1454
1455 #if NET_4_0
1456                 public int ExecuteAssemblyByName (string assemblyName, params string[] args)
1457                 {
1458                         Assembly a = Assembly.Load (assemblyName, null);
1459
1460                         return ExecuteAssemblyInternal (a, args);
1461                 }
1462
1463                 public int ExecuteAssemblyByName (AssemblyName assemblyName, params string[] args)
1464                 {
1465                         Assembly a = Assembly.Load (assemblyName, null);
1466
1467                         return ExecuteAssemblyInternal (a, args);
1468                 }
1469 #endif
1470
1471                 public bool IsDefaultAppDomain ()
1472                 {
1473                         return Object.ReferenceEquals (this, DefaultDomain);
1474                 }
1475
1476                 public Assembly[] ReflectionOnlyGetAssemblies ()
1477                 {
1478                         return GetAssemblies (true);
1479                 }
1480
1481 #else // MOONLIGHT
1482
1483                 public int ExecuteAssemblyByName (string assemblyName)
1484                 {
1485                         // critical code in SL that we're not calling in ML
1486                         throw new NotImplementedException ();
1487                 }
1488 #endif
1489
1490 #if !NET_2_1
1491                 void _AppDomain.GetIDsOfNames ([In] ref Guid riid, IntPtr rgszNames, uint cNames, uint lcid, IntPtr rgDispId)
1492                 {
1493                         throw new NotImplementedException ();
1494                 }
1495
1496                 void _AppDomain.GetTypeInfo (uint iTInfo, uint lcid, IntPtr ppTInfo)
1497                 {
1498                         throw new NotImplementedException ();
1499                 }
1500
1501                 void _AppDomain.GetTypeInfoCount (out uint pcTInfo)
1502                 {
1503                         throw new NotImplementedException ();
1504                 }
1505
1506                 void _AppDomain.Invoke (uint dispIdMember, [In] ref Guid riid, uint lcid, short wFlags, IntPtr pDispParams,
1507                         IntPtr pVarResult, IntPtr pExcepInfo, IntPtr puArgErr)
1508                 {
1509                         throw new NotImplementedException ();
1510                 }
1511 #endif
1512
1513 #if NET_4_0 || MOONLIGHT
1514                 [MonoTODO ("Currently always returns false")]
1515                 public bool? IsCompatibilitySwitchSet (string value)
1516                 {
1517                         if (value == null)
1518                                 throw new ArgumentNullException ("value");
1519                         // default (at least for SL4) is to return false for unknown values (can't get a null out of it)
1520                         return false;
1521                 }
1522
1523                 [MonoTODO ("Currently always returns false")]
1524                 public static bool MonitoringIsEnabled {
1525                         get { return false; }
1526                         set { throw new NotImplementedException (); }
1527                 }
1528
1529                 [MonoTODO]
1530                 public long MonitoringSurvivedMemorySize {
1531                         get { throw new NotImplementedException (); }
1532                 }
1533
1534                 [MonoTODO]
1535                 public static long MonitoringSurvivedProcessMemorySize {
1536                         get { throw new NotImplementedException (); }
1537                 }
1538
1539                 [MonoTODO]
1540                 public long MonitoringTotalAllocatedMemorySize {
1541                         get { throw new NotImplementedException (); }
1542                 }
1543
1544                 [MonoTODO]
1545                 public TimeSpan MonitoringTotalProcessorTime {
1546                         get { throw new NotImplementedException (); }
1547                 }
1548 #endif
1549         }
1550 }