mcs/class/System/Test/System.Net/DnsCas.cs

   1 //
   2 // DnsCas.cs - CAS unit tests for System.Net.Dns class
   3 //
   4 // Author:
   5 //      Sebastien Pouliot  <sebastien@ximian.com>
   6 //
   7 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
   8 //
   9
  10 #if !MOBILE
  11
  12 using NUnit.Framework;
  13
  14 using System;
  15 using System.Net;
  16 using System.Security;
  17 using System.Security.Permissions;
  18 using System.Threading;
  19
  20 namespace MonoCasTests.System.Net {
  21
  22         [TestFixture]
  23         [Category ("CAS")]
  24         [Category ("NotWorking")] // compiler (CSC) issue (on Windows)
  25         public class DnsCas {
  26
  27                 private const string site = "www.go-mono.com";
  28                 private const int timeout = 30000;
  29
  30                 static ManualResetEvent reset;
  31                 private string message;
  32                 private string hostname;
  33
  34                 [TestFixtureSetUp]
  35                 public void FixtureSetUp ()
  36                 {
  37                         reset = new ManualResetEvent (false);
  38                         hostname = Dns.GetHostName ();
  39                         var ip = Dns.Resolve (site).AddressList[0];
  40                 }
  41
  42                 [TestFixtureTearDown]
  43                 public void FixtureTearDown ()
  44                 {
  45                         reset.Close ();
  46                 }
  47
  48                 [SetUp]
  49                 public void SetUp ()
  50                 {
  51                         if (!SecurityManager.SecurityEnabled)
  52                                 Assert.Ignore ("SecurityManager.SecurityEnabled is OFF");
  53                 }
  54
  55                 // test Demand by denying it's caller from the required permission
  56
  57                 [Test]
  58                 [DnsPermission (SecurityAction.Deny, Unrestricted = true)]
  59                 [ExpectedException (typeof (SecurityException))]
  60                 public void Deny_BeginGetHostName ()
  61                 {
  62                         Dns.BeginGetHostByName (null, null, null);
  63                 }
  64
  65                 [Test]
  66                 [DnsPermission (SecurityAction.Deny, Unrestricted = true)]
  67                 [ExpectedException (typeof (ArgumentNullException))]
  68                 public void Deny_EndGetHostByName ()
  69                 {
  70                         Dns.EndGetHostByName (null);
  71                 }
  72
  73                 [Test]
  74                 [DnsPermission (SecurityAction.Deny, Unrestricted = true)]
  75                 [ExpectedException (typeof (SecurityException))]
  76                 public void Deny_BeginResolve ()
  77                 {
  78                         Dns.BeginResolve (null, null, null);
  79                 }
  80
  81                 [Test]
  82                 [DnsPermission (SecurityAction.Deny, Unrestricted = true)]
  83                 [ExpectedException (typeof (ArgumentNullException))]
  84                 public void Deny_EndResolve ()
  85                 {
  86                         Dns.EndResolve (null);
  87                 }
  88
  89                 [Test]
  90                 [DnsPermission (SecurityAction.Deny, Unrestricted = true)]
  91                 [ExpectedException (typeof (SecurityException))]
  92                 public void Deny_GetHostByAddress_IPAddress ()
  93                 {
  94                         Dns.GetHostByAddress ((IPAddress)null);
  95                 }
  96
  97                 [Test]
  98                 [DnsPermission (SecurityAction.Deny, Unrestricted = true)]
  99                 [ExpectedException (typeof (SecurityException))]
 100                 public void Deny_GetHostByAddress_String ()
 101                 {
 102                         Dns.GetHostByAddress ((string)null);
 103                 }
 104
 105                 [Test]
 106                 [DnsPermission (SecurityAction.Deny, Unrestricted = true)]
 107                 [ExpectedException (typeof (SecurityException))]
 108                 public void Deny_GetHostByName ()
 109                 {
 110                         Dns.GetHostByName (site);
 111                 }
 112
 113                 [Test]
 114                 [DnsPermission (SecurityAction.Deny, Unrestricted = true)]
 115 #if NET_2_0
 116                 [ExpectedException (typeof (ArgumentNullException))]
 117                 // so it's not a declarative attribute on the method as the
 118                 // null check is done before throwing the SecurityException
 119 #else
 120                 [ExpectedException (typeof (SecurityException))]
 121 #endif
 122                 public void Deny_GetHostByName_Null ()
 123                 {
 124                         Dns.GetHostByName (null);
 125                 }
 126
 127                 [Test]
 128                 [DnsPermission (SecurityAction.Deny, Unrestricted = true)]
 129                 [ExpectedException (typeof (SecurityException))]
 130                 public void Deny_GetHostByName_HostName ()
 131                 {
 132                         // ... so my first guess is that you can only query
 133                         // yourself without having unrestricted DnsPermission
 134                         Assert.IsNotNull (Dns.GetHostByName (hostname));
 135                         // but that's wrong :-(
 136                 }
 137
 138                 [Test]
 139                 [DnsPermission (SecurityAction.Deny, Unrestricted = true)]
 140                 [ExpectedException (typeof (SecurityException))]
 141                 public void Deny_GetHostName ()
 142                 {
 143                         Dns.GetHostName ();
 144                 }
 145
 146                 [Test]
 147                 [DnsPermission (SecurityAction.Deny, Unrestricted = true)]
 148                 [ExpectedException (typeof (SecurityException))]
 149                 public void Deny_Resolve ()
 150                 {
 151                         Dns.Resolve (null);
 152                 }
 153
 154 #if NET_2_0
 155                 // TODO: New 2.0 methods aren't yet implemented in Mono
 156 /*
 157                 [Test]
 158                 [DnsPermission (SecurityAction.Deny, Unrestricted = true)]
 159                 [ExpectedException (typeof (SecurityException))]
 160                 public void Deny_BeginGetHostAddresses ()
 161                 {
 162                         Dns.BeginGetHostAddresses (null, null, null);
 163                 }
 164
 165                 [Test]
 166                 [DnsPermission (SecurityAction.Deny, Unrestricted = true)]
 167                 [ExpectedException (typeof (ArgumentNullException))]
 168                 public void Deny_EndGetHostAddresses ()
 169                 {
 170                         Dns.EndGetHostAddresses (null);
 171                 }
 172
 173                 [Test]
 174                 [DnsPermission (SecurityAction.Deny, Unrestricted = true)]
 175                 [ExpectedException (typeof (SecurityException))]
 176                 public void Deny_BeginGetHostEntry_IPAddress ()
 177                 {
 178                         Dns.BeginGetHostEntry ((IPAddress)null, null, null);
 179                 }
 180
 181                 [Test]
 182                 [DnsPermission (SecurityAction.Deny, Unrestricted = true)]
 183                 [ExpectedException (typeof (SecurityException))]
 184                 public void Deny_BeginGetHostEntry_String ()
 185                 {
 186                         Dns.BeginGetHostEntry ((string)null, null, null);
 187                 }
 188
 189                 [Test]
 190                 [DnsPermission (SecurityAction.Deny, Unrestricted = true)]
 191                 [ExpectedException (typeof (ArgumentNullException))]
 192                 public void Deny_EndGetHostEntry ()
 193                 {
 194                         Dns.EndGetHostEntry (null);
 195                 }
 196
 197                 [Test]
 198                 [DnsPermission (SecurityAction.Deny, Unrestricted = true)]
 199                 [ExpectedException (typeof (SecurityException))]
 200                 public void Deny_GetHostEntry_IPAddress ()
 201                 {
 202                         Dns.GetHostEntry ((IPAddress)null);
 203                 }
 204
 205                 [Test]
 206                 [DnsPermission (SecurityAction.Deny, Unrestricted = true)]
 207                 [ExpectedException (typeof (SecurityException))]
 208                 public void Deny_GetHostEntry_String ()
 209                 {
 210                         Dns.GetHostEntry ((string)null);
 211                 }
 212
 213                 [Test]
 214                 [DnsPermission (SecurityAction.Deny, Unrestricted = true)]
 215                 [ExpectedException (typeof (SecurityException))]
 216                 public void Deny_GetHostAddresses ()
 217                 {
 218                         Dns.GetHostAddresses (null);
 219                 }
 220 */
 221 #endif
 222
 223                 // ensure that only DnsPermission is required to call the methods
 224
 225                 [Test]
 226                 [DnsPermission (SecurityAction.PermitOnly, Unrestricted = true)]
 227                 [ExpectedException (typeof (ArgumentNullException))]
 228                 public void PermitOnly_BeginGetHostName ()
 229                 {
 230                         Dns.BeginGetHostByName (null, null, null);
 231                 }
 232
 233                 [Test]
 234                 [DnsPermission (SecurityAction.PermitOnly, Unrestricted = true)]
 235                 [ExpectedException (typeof (ArgumentNullException))]
 236                 public void PermitOnly_BeginResolve ()
 237                 {
 238                         Dns.BeginResolve (null, null, null);
 239                 }
 240
 241                 [Test]
 242                 [DnsPermission (SecurityAction.PermitOnly, Unrestricted = true)]
 243                 [ExpectedException (typeof (ArgumentNullException))]
 244                 public void PermitOnly_GetHostByAddress_IPAddress ()
 245                 {
 246                         Dns.GetHostByAddress ((IPAddress)null);
 247                 }
 248
 249                 [Test]
 250                 [DnsPermission (SecurityAction.PermitOnly, Unrestricted = true)]
 251                 [ExpectedException (typeof (ArgumentNullException))]
 252                 public void PermitOnly_GetHostByAddress_String ()
 253                 {
 254                         Dns.GetHostByAddress ((string)null);
 255                 }
 256
 257                 [Test]
 258                 [DnsPermission (SecurityAction.PermitOnly, Unrestricted = true)]
 259                 [ExpectedException (typeof (ArgumentNullException))]
 260                 public void PermitOnly_GetHostByName ()
 261                 {
 262                         Dns.GetHostByName (null);
 263                 }
 264
 265                 [Test]
 266                 [DnsPermission (SecurityAction.PermitOnly, Unrestricted = true)]
 267                 public void PermitOnly_GetHostName ()
 268                 {
 269                         Assert.IsNotNull (Dns.GetHostName ());
 270                 }
 271
 272                 [Test]
 273                 [DnsPermission (SecurityAction.PermitOnly, Unrestricted = true)]
 274                 [ExpectedException (typeof (ArgumentNullException))]
 275                 public void PermitOnly_Resolve ()
 276                 {
 277                         Dns.Resolve (null);
 278                 }
 279
 280 #if NET_2_0
 281                 // TODO: New 2.0 methods aren't yet implemented in Mono
 282 /*
 283                 [Test]
 284                 [DnsPermission (SecurityAction.PermitOnly, Unrestricted = true)]
 285                 [ExpectedException (typeof (ArgumentNullException))]
 286                 public void PermitOnly_BeginGetHostAddresses ()
 287                 {
 288                         Dns.BeginGetHostAddresses (null, null, null);
 289                 }
 290
 291                 [Test]
 292                 [DnsPermission (SecurityAction.PermitOnly, Unrestricted = true)]
 293                 [ExpectedException (typeof (ArgumentNullException))]
 294                 public void PermitOnly_EndGetHostAddresses ()
 295                 {
 296                         Dns.EndGetHostAddresses (null);
 297                 }
 298
 299                 [Test]
 300                 [DnsPermission (SecurityAction.PermitOnly, Unrestricted = true)]
 301                 [ExpectedException (typeof (ArgumentNullException))]
 302                 public void PermitOnly_BeginGetHostEntry_IPAddress ()
 303                 {
 304                         Dns.BeginGetHostEntry ((IPAddress)null, null, null);
 305                 }
 306
 307                 [Test]
 308                 [DnsPermission (SecurityAction.PermitOnly, Unrestricted = true)]
 309                 [ExpectedException (typeof (ArgumentNullException))]
 310                 public void PermitOnly_BeginGetHostEntry_String ()
 311                 {
 312                         Dns.BeginGetHostEntry ((string)null, null, null);
 313                 }
 314
 315                 [Test]
 316                 [DnsPermission (SecurityAction.PermitOnly, Unrestricted = true)]
 317                 [ExpectedException (typeof (ArgumentNullException))]
 318                 public void PermitOnly_EndGetHostEntry ()
 319                 {
 320                         Dns.EndGetHostEntry (null);
 321                 }
 322
 323                 [Test]
 324                 [DnsPermission (SecurityAction.PermitOnly, Unrestricted = true)]
 325                 [ExpectedException (typeof (ArgumentNullException))]
 326                 public void PermitOnly_GetHostEntry_IPAddress ()
 327                 {
 328                         Dns.GetHostEntry ((IPAddress)null);
 329                 }
 330
 331                 [Test]
 332                 [DnsPermission (SecurityAction.PermitOnly, Unrestricted = true)]
 333                 [ExpectedException (typeof (ArgumentNullException))]
 334                 public void PermitOnly_GetHostEntry_String ()
 335                 {
 336                         Dns.GetHostEntry ((string)null);
 337                 }
 338
 339                 [Test]
 340                 [DnsPermission (SecurityAction.PermitOnly, Unrestricted = true)]
 341                 [ExpectedException (typeof (ArgumentNullException))]
 342                 public void PermitOnly_GetHostAddresses ()
 343                 {
 344                         Dns.GetHostAddresses (null);
 345                 }
 346 */
 347 #endif
 348
 349                 // async tests (for stack propagation)
 350
 351                 [DnsPermission (SecurityAction.Deny, Unrestricted = true)]
 352                 private void GetHostByNameCallback (IAsyncResult ar)
 353                 {
 354                         Dns.EndGetHostByName (ar);
 355                         try {
 356                                 // can we do something bad here ?
 357                                 Assert.IsNotNull (Environment.GetEnvironmentVariable ("USERNAME"));
 358                                 message = "Expected a SecurityException";
 359                         }
 360                         catch (SecurityException) {
 361                                 message = null;
 362                                 reset.Set ();
 363                         }
 364                         catch (Exception e)
 365                         {
 366                                 message = e.ToString ();
 367                         }
 368                 }
 369
 370                 [Test]
 371                 [EnvironmentPermission (SecurityAction.Deny, Read = "USERNAME")]
 372                 public void AsyncGetHostByName ()
 373                 {
 374                         message = "AsyncGetHostByName";
 375                         reset.Reset ();
 376                         IAsyncResult r = Dns.BeginGetHostByName (site, new AsyncCallback (GetHostByNameCallback), null);
 377                         Assert.IsNotNull (r, "IAsyncResult");
 378                         // note for some reason r.AsyncWaitHandle.Wait won't work as expected
 379                         // if (!r.AsyncWaitHandle.WaitOne (timeout, true))
 380                         if (!reset.WaitOne (timeout, true))
 381                                 Assert.Ignore ("Timeout");
 382                         Assert.IsNull (message, message);
 383                 }
 384
 385                 [DnsPermission (SecurityAction.Deny, Unrestricted = true)]
 386                 private void ResolveCallback (IAsyncResult ar)
 387                 {
 388                         Dns.EndResolve (ar);
 389                         try {
 390                                 // can we do something bad here ?
 391                                 Assert.IsNotNull (Environment.GetEnvironmentVariable ("USERNAME"));
 392                                 message = "Expected a SecurityException";
 393                         }
 394                         catch (SecurityException) {
 395                                 message = null;
 396                                 reset.Set ();
 397                         }
 398                         catch (Exception e) {
 399                                 message = e.ToString ();
 400                         }
 401                 }
 402
 403                 [Test]
 404                 [EnvironmentPermission (SecurityAction.Deny, Read = "USERNAME")]
 405                 public void AsyncResolve ()
 406                 {
 407                         message = "AsyncResolve";
 408                         reset.Reset ();
 409                         IAsyncResult r = Dns.BeginResolve (site, new AsyncCallback (ResolveCallback), null);
 410                         Assert.IsNotNull (r, "IAsyncResult");
 411                         // note for some reason r.AsyncWaitHandle.Wait won't work as expected
 412                         // if (!r.AsyncWaitHandle.WaitOne (timeout, true))
 413                         if (!reset.WaitOne (timeout, true))
 414                                 Assert.Ignore ("Timeout");
 415                         Assert.IsNull (message, message);
 416                 }
 417
 418 #if NET_2_0
 419                 // TODO: New 2.0 methods aren't yet implemented in Mono
 420 /*
 421                 [DnsPermission (SecurityAction.Deny, Unrestricted = true)]
 422                 private void GetHostEntryCallback (IAsyncResult ar)
 423                 {
 424                         Dns.EndGetHostEntry (ar);
 425                         try {
 426                                 // can we do something bad here ?
 427                                 Assert.IsNotNull (Environment.GetEnvironmentVariable ("USERNAME"));
 428                                 message = "Expected a SecurityException";
 429                         }
 430                         catch (SecurityException) {
 431                                 message = null;
 432                                 reset.Set ();
 433                         }
 434                         catch (Exception e) {
 435                                 message = e.ToString ();
 436                         }
 437                 }
 438
 439                 [Test]
 440                 [EnvironmentPermission (SecurityAction.Deny, Read = "USERNAME")]
 441                 [Ignore ("fails when EndGetHostEntry is called")]
 442                 public void AsyncGetHostEntry_IPAddress ()
 443                 {
 444                         message = "AsyncGetHostEntry_IPAddress";
 445                         reset.Reset ();
 446                         IAsyncResult r = Dns.BeginGetHostEntry (ip, new AsyncCallback (GetHostEntryCallback), null);
 447                         Assert.IsNotNull (r, "IAsyncResult");
 448                         // note for some reason r.AsyncWaitHandle.Wait won't work as expected
 449                         // if (!r.AsyncWaitHandle.WaitOne (timeout, true))
 450                         if (!reset.WaitOne (timeout, true))
 451                                 Assert.Ignore ("Timeout");
 452                         Assert.IsNull (message, message);
 453                 }
 454
 455                 [Test]
 456                 [EnvironmentPermission (SecurityAction.Deny, Read = "USERNAME")]
 457                 public void AsyncGetHostEntry_String ()
 458                 {
 459                         message = "AsyncGetHostEntry_String";
 460                         reset.Reset ();
 461                         IAsyncResult r = Dns.BeginGetHostEntry (site, new AsyncCallback (GetHostEntryCallback), null);
 462                         Assert.IsNotNull (r, "IAsyncResult");
 463                         // note for some reason r.AsyncWaitHandle.Wait won't work as expected
 464                         // if (!r.AsyncWaitHandle.WaitOne (timeout, true))
 465                         if (!reset.WaitOne (timeout, true))
 466                                 Assert.Ignore ("Timeout");
 467                         Assert.IsNull (message, message);
 468                 }
 469
 470                 [DnsPermission (SecurityAction.Deny, Unrestricted = true)]
 471                 private void GetHostAddressesCallback (IAsyncResult ar)
 472                 {
 473                         Dns.EndGetHostEntry (ar);
 474                         try {
 475                                 // can we do something bad here ?
 476                                 Assert.IsNotNull (Environment.GetEnvironmentVariable ("USERNAME"));
 477                                 message = "Expected a SecurityException";
 478                         }
 479                         catch (SecurityException) {
 480                                 message = null;
 481                                 reset.Set ();
 482                         }
 483                         catch (Exception e) {
 484                                 message = e.ToString ();
 485                         }
 486                 }
 487
 488                 [Test]
 489                 [EnvironmentPermission (SecurityAction.Deny, Read = "USERNAME")]
 490                 public void AsyncGetHostAddresses ()
 491                 {
 492                         message = "AsyncGetHostAddresses";
 493                         reset.Reset ();
 494                         IAsyncResult r = Dns.BeginGetHostAddresses (site, new AsyncCallback (GetHostAddressesCallback), null);
 495                         Assert.IsNotNull (r, "IAsyncResult");
 496                         // note for some reason r.AsyncWaitHandle.Wait won't work as expected
 497                         // if (!r.AsyncWaitHandle.WaitOne (timeout, true))
 498                         if (!reset.WaitOne (timeout, true))
 499                                 Assert.Ignore ("Timeout");
 500                         Assert.IsNull (message, message);
 501                 }
 502 */
 503 #endif
 504         }
 505 }
 506
 507 #endif