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

   1 //
   2 // HttpListenerTest.cs
   3 //      - Unit tests for System.Net.HttpListener
   4 //
   5 // Author:
   6 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   7 //
   8 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29 using System;
  30 using System.IO;
  31 using System.Net;
  32 using System.Net.Sockets;
  33 using System.Threading;
  34 using System.Threading.Tasks;
  35 using NUnit.Framework;
  36 using MonoTests.Helpers;
  37
  38 namespace MonoTests.System.Net {
  39         [TestFixture]
  40         public class HttpListenerTest {
  41
  42                 int? _port;
  43                 int port {
  44                         get { return _port ?? (_port = NetworkHelpers.FindFreePort ()).Value; }
  45                 }
  46
  47                 [Test]
  48 #if FEATURE_NO_BSD_SOCKETS
  49                 [ExpectedException (typeof (PlatformNotSupportedException))]
  50 #endif
  51                 public void DefaultProperties ()
  52                 {
  53                         HttpListener listener = new HttpListener ();
  54                         Assert.AreEqual (AuthenticationSchemes.Anonymous, listener.AuthenticationSchemes, "#01");
  55                         Assert.AreEqual (null, listener.AuthenticationSchemeSelectorDelegate, "#02");
  56                         Assert.AreEqual (false, listener.IgnoreWriteExceptions, "#03");
  57                         Assert.AreEqual (false, listener.IsListening, "#03");
  58                         Assert.AreEqual (0, listener.Prefixes.Count, "#04");
  59                         Assert.AreEqual (null, listener.Realm, "#05");
  60                         Assert.AreEqual (false, listener.UnsafeConnectionNtlmAuthentication, "#06");
  61                 }
  62
  63                 [Test]
  64 #if FEATURE_NO_BSD_SOCKETS
  65                 [ExpectedException (typeof (PlatformNotSupportedException))]
  66 #endif
  67                 public void Start1 ()
  68                 {
  69                         HttpListener listener = new HttpListener ();
  70                         listener.Start ();
  71                 }
  72
  73                 [Test]
  74 #if FEATURE_NO_BSD_SOCKETS
  75                 [ExpectedException (typeof (PlatformNotSupportedException))]
  76 #endif
  77                 public void Stop1 ()
  78                 {
  79                         HttpListener listener = new HttpListener ();
  80                         listener.Stop ();
  81                 }
  82
  83                 [Test]
  84 #if FEATURE_NO_BSD_SOCKETS
  85                 [ExpectedException (typeof (PlatformNotSupportedException))]
  86 #else
  87                 [ExpectedException (typeof (InvalidOperationException))]
  88 #endif
  89                 public void GetContext1 ()
  90                 {
  91                         HttpListener listener = new HttpListener ();
  92                         // "Please call Start () before calling this method"
  93                         listener.GetContext ();
  94                 }
  95
  96                 [Test]
  97 #if FEATURE_NO_BSD_SOCKETS
  98                 [ExpectedException (typeof (PlatformNotSupportedException))]
  99 #else
 100                 [ExpectedException (typeof (InvalidOperationException))]
 101 #endif
 102                 public void GetContext2 ()
 103                 {
 104                         HttpListener listener = new HttpListener ();
 105                         listener.Start ();
 106                         // "Please call AddPrefix () before calling this method"
 107                         listener.GetContext ();
 108                 }
 109
 110                 [Test]
 111 #if FEATURE_NO_BSD_SOCKETS
 112                 [ExpectedException (typeof (PlatformNotSupportedException))]
 113 #else
 114                 [ExpectedException (typeof (InvalidOperationException))]
 115 #endif
 116                 public void BeginGetContext1 ()
 117                 {
 118                         HttpListener listener = new HttpListener ();
 119                         // "Please call Start () before calling this method"
 120                         listener.BeginGetContext (null, null);
 121                 }
 122
 123                 [Test]
 124 #if FEATURE_NO_BSD_SOCKETS
 125                 [ExpectedException (typeof (PlatformNotSupportedException))]
 126 #endif
 127                 public void BeginGetContext2 ()
 128                 {
 129                         HttpListener listener = new HttpListener ();
 130                         listener.Start ();
 131                         // One would expect this to fail as BeginGetContext1 does not fail and
 132                         // calling EndGetContext will wait forever.
 133                         // Lame. They should check that we have no prefixes.
 134                         IAsyncResult ares = listener.BeginGetContext (null, null);
 135                         Assert.IsFalse (ares.IsCompleted);
 136                 }
 137
 138                 private bool CanOpenPort(int port)
 139                 {
 140                         try
 141                         {
 142                                 using(Socket socket = new Socket (AddressFamily.InterNetwork,
 143                                         SocketType.Stream,
 144                                         ProtocolType.Tcp))
 145                                 {
 146                                         socket.Bind (new IPEndPoint (IPAddress.Loopback, port));
 147                                         socket.Listen(1);
 148                                 }
 149                         }
 150                         catch(Exception) {
 151                                 //Can be AccessDeniedException(ports 80/443 need root access) or
 152                                 //SocketException because other application is listening
 153                                 return false;
 154                         }
 155                         return true;
 156                 }
 157
 158                 [Test]
 159 #if FEATURE_NO_BSD_SOCKETS
 160                 [ExpectedException (typeof (PlatformNotSupportedException))]
 161 #endif
 162                 public void DefaultHttpPort ()
 163                 {
 164                         if (!CanOpenPort (80))
 165                                 Assert.Ignore ("Can not open port 80 skipping test.");
 166                         using(HttpListener listener = new HttpListener ())
 167                         {
 168                                 listener.Prefixes.Add ("http://127.0.0.1/");
 169                                 listener.Start ();
 170                                 Assert.IsFalse (CanOpenPort (80), "HttpListener is not listening on port 80.");
 171                         }
 172                 }
 173
 174                 [Test]
 175 #if FEATURE_NO_BSD_SOCKETS
 176                 [ExpectedException (typeof (PlatformNotSupportedException))]
 177 #endif
 178                 public void DefaultHttpsPort ()
 179                 {
 180                         if (!CanOpenPort (443))
 181                                 Assert.Ignore ("Can not open port 443 skipping test.");
 182                         using(HttpListener listener = new HttpListener ())
 183                         {
 184                                 listener.Prefixes.Add ("https://127.0.0.1/");
 185                                 listener.Start ();
 186                                 Assert.IsFalse (CanOpenPort (443), "HttpListener is not listening on port 443.");
 187                         }
 188                 }
 189
 190                 [Test]
 191 #if FEATURE_NO_BSD_SOCKETS
 192                 [ExpectedException (typeof (PlatformNotSupportedException))]
 193 #endif
 194                 public void TwoListeners_SameAddress ()
 195                 {
 196                         if (!CanOpenPort (port))
 197                                 Assert.Ignore ("port");
 198                         HttpListener listener1 = new HttpListener ();
 199                         listener1.Prefixes.Add ("http://127.0.0.1:" + port + "/");
 200                         HttpListener listener2 = new HttpListener ();
 201                         listener2.Prefixes.Add ("http://127.0.0.1:" + port + "/hola/");
 202                         listener1.Start ();
 203                         listener2.Start ();
 204                 }
 205
 206                 [Test]
 207 #if FEATURE_NO_BSD_SOCKETS
 208                 [ExpectedException (typeof (PlatformNotSupportedException))]
 209 #else
 210                 [ExpectedException (typeof (HttpListenerException))]
 211 #endif
 212                 public void TwoListeners_SameURL ()
 213                 {
 214                         if (!CanOpenPort (port))
 215                                 Assert.Ignore ("port");
 216                         HttpListener listener1 = new HttpListener ();
 217                         listener1.Prefixes.Add ("http://127.0.0.1:" + port + "/hola/");
 218                         HttpListener listener2 = new HttpListener ();
 219                         listener2.Prefixes.Add ("http://127.0.0.1:" + port + "/hola/");
 220                         listener1.Start ();
 221                         listener2.Start ();
 222                 }
 223
 224                 [Test]
 225 #if FEATURE_NO_BSD_SOCKETS
 226                 [ExpectedException (typeof (PlatformNotSupportedException))]
 227 #else
 228                 [ExpectedException (typeof (HttpListenerException))]
 229 #endif
 230                 public void MultipleSlashes ()
 231                 {
 232                         if (!CanOpenPort (port))
 233                                 Assert.Ignore ("port");
 234                         HttpListener listener = new HttpListener ();
 235                         listener.Prefixes.Add ("http://localhost:" + port + "/hola////");
 236                         // this one throws on Start(), not when adding it.
 237                         listener.Start ();
 238                 }
 239
 240                 [Test]
 241 #if FEATURE_NO_BSD_SOCKETS
 242                 [ExpectedException (typeof (PlatformNotSupportedException))]
 243 #else
 244                 [ExpectedException (typeof (HttpListenerException))]
 245 #endif
 246                 public void PercentSign ()
 247                 {
 248                         if (!CanOpenPort (port))
 249                                 Assert.Ignore ("port");
 250                         HttpListener listener = new HttpListener ();
 251                         listener.Prefixes.Add ("http://localhost:" + port + "/hola%3E/");
 252                         // this one throws on Start(), not when adding it.
 253                         listener.Start ();
 254                 }
 255
 256                 [Test]
 257 #if FEATURE_NO_BSD_SOCKETS
 258                 [ExpectedException (typeof (PlatformNotSupportedException))]
 259 #endif
 260                 public void CloseBeforeStart ()
 261                 {
 262                         HttpListener listener = new HttpListener ();
 263                         listener.Close ();
 264                 }
 265
 266                 [Test]
 267 #if FEATURE_NO_BSD_SOCKETS
 268                 [ExpectedException (typeof (PlatformNotSupportedException))]
 269 #endif
 270                 public void CloseTwice ()
 271                 {
 272                         if (!CanOpenPort (port))
 273                                 Assert.Ignore ("port");
 274                         HttpListener listener = new HttpListener ();
 275                         listener.Prefixes.Add ("http://localhost:" + port + "/hola/");
 276                         listener.Start ();
 277                         listener.Close ();
 278                         listener.Close ();
 279                 }
 280
 281                 [Test]
 282 #if FEATURE_NO_BSD_SOCKETS
 283                 [ExpectedException (typeof (PlatformNotSupportedException))]
 284 #endif
 285                 public void StartStopStart ()
 286                 {
 287                         if (!CanOpenPort (port))
 288                                 Assert.Ignore ("port");
 289                         HttpListener listener = new HttpListener ();
 290                         listener.Prefixes.Add ("http://localhost:" + port + "/hola/");
 291                         listener.Start ();
 292                         listener.Stop ();
 293                         listener.Start ();
 294                         listener.Close ();
 295                 }
 296
 297                 [Test]
 298 #if FEATURE_NO_BSD_SOCKETS
 299                 [ExpectedException (typeof (PlatformNotSupportedException))]
 300 #endif
 301                 public void StartStopDispose ()
 302                 {
 303                         if (!CanOpenPort (port))
 304                                 Assert.Ignore ("port");
 305                         using (HttpListener listener = new HttpListener ()){
 306                                 listener.Prefixes.Add ("http://localhost:" + port + "/hola/");
 307                                 listener.Start ();
 308                                 listener.Stop ();
 309                         }
 310                 }
 311
 312                 [Test]
 313 #if FEATURE_NO_BSD_SOCKETS
 314                 [ExpectedException (typeof (PlatformNotSupportedException))]
 315 #endif
 316                 public void AbortBeforeStart ()
 317                 {
 318                         HttpListener listener = new HttpListener ();
 319                         listener.Abort ();
 320                 }
 321
 322                 [Test]
 323 #if FEATURE_NO_BSD_SOCKETS
 324                 [ExpectedException (typeof (PlatformNotSupportedException))]
 325 #endif
 326                 public void AbortTwice ()
 327                 {
 328                         if (!CanOpenPort (port))
 329                                 Assert.Ignore ("port");
 330                         HttpListener listener = new HttpListener ();
 331                         listener.Prefixes.Add ("http://localhost:" + port + "/hola/");
 332                         listener.Start ();
 333                         listener.Abort ();
 334                         listener.Abort ();
 335                 }
 336
 337                 [Test]
 338 #if FEATURE_NO_BSD_SOCKETS
 339                 [ExpectedException (typeof (PlatformNotSupportedException))]
 340 #endif
 341                 public void PropertiesWhenClosed1 ()
 342                 {
 343                         HttpListener listener = new HttpListener ();
 344                         listener.Close ();
 345                         Assert.AreEqual (AuthenticationSchemes.Anonymous, listener.AuthenticationSchemes, "#01");
 346                         Assert.AreEqual (null, listener.AuthenticationSchemeSelectorDelegate, "#02");
 347                         Assert.AreEqual (false, listener.IgnoreWriteExceptions, "#03");
 348                         Assert.AreEqual (false, listener.IsListening, "#03");
 349                         Assert.AreEqual (null, listener.Realm, "#05");
 350                         Assert.AreEqual (false, listener.UnsafeConnectionNtlmAuthentication, "#06");
 351                 }
 352
 353                 [Test]
 354 #if FEATURE_NO_BSD_SOCKETS
 355                 [ExpectedException (typeof (PlatformNotSupportedException))]
 356 #else
 357                 [ExpectedException (typeof (ObjectDisposedException))]
 358 #endif
 359                 public void PropertiesWhenClosed2 ()
 360                 {
 361                         HttpListener listener = new HttpListener ();
 362                         listener.Close ();
 363                         HttpListenerPrefixCollection p = listener.Prefixes;
 364                 }
 365
 366                 [Test]
 367 #if FEATURE_NO_BSD_SOCKETS
 368                 [ExpectedException (typeof (PlatformNotSupportedException))]
 369 #else
 370                 [ExpectedException (typeof (ObjectDisposedException))]
 371 #endif
 372                 public void PropertiesWhenClosedSet1 ()
 373                 {
 374                         HttpListener listener = new HttpListener ();
 375                         listener.Close ();
 376                         listener.AuthenticationSchemes = AuthenticationSchemes.None;
 377                 }
 378
 379                 [Test]
 380 #if FEATURE_NO_BSD_SOCKETS
 381                 [ExpectedException (typeof (PlatformNotSupportedException))]
 382 #else
 383                 [ExpectedException (typeof (ObjectDisposedException))]
 384 #endif
 385                 public void PropertiesWhenClosedSet2 ()
 386                 {
 387                         HttpListener listener = new HttpListener ();
 388                         listener.Close ();
 389                         listener.AuthenticationSchemeSelectorDelegate = null;
 390                 }
 391
 392                 [Test]
 393 #if FEATURE_NO_BSD_SOCKETS
 394                 [ExpectedException (typeof (PlatformNotSupportedException))]
 395 #else
 396                 [ExpectedException (typeof (ObjectDisposedException))]
 397 #endif
 398                 public void PropertiesWhenClosedSet3 ()
 399                 {
 400                         HttpListener listener = new HttpListener ();
 401                         listener.Close ();
 402                         listener.IgnoreWriteExceptions = true;
 403                 }
 404
 405                 [Test]
 406 #if FEATURE_NO_BSD_SOCKETS
 407                 [ExpectedException (typeof (PlatformNotSupportedException))]
 408 #else
 409                 [ExpectedException (typeof (ObjectDisposedException))]
 410 #endif
 411                 public void PropertiesWhenClosedSet4 ()
 412                 {
 413                         HttpListener listener = new HttpListener ();
 414                         listener.Close ();
 415                         listener.Realm = "hola";
 416                 }
 417
 418                 [Test]
 419 #if FEATURE_NO_BSD_SOCKETS
 420                 [ExpectedException (typeof (PlatformNotSupportedException))]
 421 #else
 422                 [ExpectedException (typeof (ObjectDisposedException))]
 423 #endif
 424                 public void PropertiesWhenClosedSet5 ()
 425                 {
 426                         HttpListener listener = new HttpListener ();
 427                         listener.Close ();
 428                         listener.UnsafeConnectionNtlmAuthentication = true;
 429                 }
 430
 431                 [Test]
 432 #if FEATURE_NO_BSD_SOCKETS
 433                 [ExpectedException (typeof (PlatformNotSupportedException))]
 434 #endif
 435                 public void PropertiesWhenClosed3 ()
 436                 {
 437                         HttpListener listener = new HttpListener ();
 438                         listener.Close ();
 439                         Assert.IsFalse (listener.IsListening);
 440                 }
 441
 442                 [Test]
 443 #if FEATURE_NO_BSD_SOCKETS
 444                 [ExpectedException (typeof (PlatformNotSupportedException))]
 445 #endif
 446                 public void CloseWhileBegin ()
 447                 {
 448                         HttpListener listener = new HttpListener ();
 449                         listener.Prefixes.Add ("http://127.0.0.1:" + NetworkHelpers.FindFreePort () + "/closewhilebegin/");
 450                         listener.Start ();
 451                         CallMe cm = new CallMe ();
 452                         listener.BeginGetContext (cm.Callback, listener);
 453                         listener.Close ();
 454                         if (false == cm.Event.WaitOne (3000, false))
 455                                 Assert.Fail ("This should not time out.");
 456                         Assert.IsNotNull (cm.Error);
 457                         Assert.AreEqual (typeof (ObjectDisposedException), cm.Error.GetType (), "Exception type");
 458                         cm.Dispose ();
 459                 }
 460
 461                 [Test]
 462 #if FEATURE_NO_BSD_SOCKETS
 463                 [ExpectedException (typeof (PlatformNotSupportedException))]
 464 #endif
 465                 public void AbortWhileBegin ()
 466                 {
 467                         HttpListener listener = new HttpListener ();
 468                         listener.Prefixes.Add ("http://127.0.0.1:" + NetworkHelpers.FindFreePort () + "/abortwhilebegin/");
 469                         listener.Start ();
 470                         CallMe cm = new CallMe ();
 471                         listener.BeginGetContext (cm.Callback, listener);
 472                         listener.Abort ();
 473                         if (false == cm.Event.WaitOne (3000, false))
 474                                 Assert.Fail ("This should not time out.");
 475                         Assert.IsNotNull (cm.Error);
 476                         Assert.AreEqual (typeof (ObjectDisposedException), cm.Error.GetType (), "Exception type");
 477                         cm.Dispose ();
 478                 }
 479
 480                 [Test]
 481 #if FEATURE_NO_BSD_SOCKETS
 482                 [ExpectedException (typeof (PlatformNotSupportedException))]
 483 #else
 484                 [ExpectedException (typeof (HttpListenerException))]
 485 #endif
 486                 public void CloseWhileGet ()
 487                 {
 488                         // "System.Net.HttpListener Exception : The I/O operation has been aborted
 489                         // because of either a thread exit or an application request
 490                         //   at System.Net.HttpListener.GetContext()
 491                         //   at MonoTests.System.Net.HttpListenerTest.CloseWhileGet()
 492
 493                         HttpListener listener = new HttpListener ();
 494                         listener.Prefixes.Add ("http://127.0.0.1:" + NetworkHelpers.FindFreePort () + "/closewhileget/");
 495                         listener.Start ();
 496                         RunMe rm = new RunMe (1000, new ThreadStart (listener.Close), new object [0]);
 497                         rm.Start ();
 498                         HttpListenerContext ctx = listener.GetContext ();
 499                 }
 500
 501                 [Test]
 502 #if FEATURE_NO_BSD_SOCKETS
 503                 [ExpectedException (typeof (PlatformNotSupportedException))]
 504 #else
 505                 [ExpectedException (typeof (HttpListenerException))]
 506 #endif
 507                 public void AbortWhileGet ()
 508                 {
 509                         // "System.Net.HttpListener Exception : The I/O operation has been aborted
 510                         // because of either a thread exit or an application request
 511                         //   at System.Net.HttpListener.GetContext()
 512                         //   at MonoTests.System.Net.HttpListenerTest.CloseWhileGet()
 513
 514                         HttpListener listener = new HttpListener ();
 515                         listener.Prefixes.Add ("http://127.0.0.1:" + NetworkHelpers.FindFreePort () + "/abortwhileget/");
 516                         listener.Start ();
 517                         RunMe rm = new RunMe (1000, new ThreadStart (listener.Abort), new object [0]);
 518                         rm.Start ();
 519                         HttpListenerContext ctx = listener.GetContext ();
 520                 }
 521
 522                 class RunMe {
 523                         Delegate d;
 524                         int delay_ms;
 525                         object [] args;
 526                         public object Result;
 527
 528                         public RunMe (int delay_ms, Delegate d, object [] args)
 529                         {
 530                                 this.delay_ms = delay_ms;
 531                                 this.d = d;
 532                                 this.args = args;
 533                         }
 534
 535                         public void Start ()
 536                         {
 537                                 Thread th = new Thread (new ThreadStart (Run));
 538                                 th.Start ();
 539                         }
 540
 541                         void Run ()
 542                         {
 543                                 Thread.Sleep (delay_ms);
 544                                 Result = d.DynamicInvoke (args);
 545                         }
 546                 }
 547
 548                 class CallMe {
 549                         public ManualResetEvent Event = new ManualResetEvent (false);
 550                         public bool Called;
 551                         public HttpListenerContext Context;
 552                         public Exception Error;
 553
 554                         public void Reset ()
 555                         {
 556                                 Called = false;
 557                                 Context = null;
 558                                 Error = null;
 559                                 Event.Reset ();
 560                         }
 561
 562                         public void Callback (IAsyncResult ares)
 563                         {
 564                                 Called = true;
 565                                 if (ares == null) {
 566                                         Error = new ArgumentNullException ("ares");
 567                                         return;
 568                                 }
 569
 570                                 try {
 571                                         HttpListener listener = (HttpListener) ares.AsyncState;
 572                                         Context = listener.EndGetContext (ares);
 573                                 } catch (Exception e) {
 574                                         Error = e;
 575                                 }
 576                                 Event.Set ();
 577                         }
 578
 579                         public void Dispose ()
 580                         {
 581                                 Event.Close ();
 582                         }
 583                 }
 584
 585                 [Test]
 586 #if FEATURE_NO_BSD_SOCKETS
 587                 [ExpectedException (typeof (PlatformNotSupportedException))]
 588 #endif
 589                 public void ConnectionReuse ()
 590                 {
 591                         var uri = "http://localhost:" + NetworkHelpers.FindFreePort () + "/";
 592
 593                         HttpListener listener = new HttpListener ();
 594                         listener.Prefixes.Add (uri);
 595                         listener.Start ();
 596
 597                         IPEndPoint expectedIpEndPoint = CreateListenerRequest (listener, uri);
 598
 599                         Assert.AreEqual (expectedIpEndPoint, CreateListenerRequest (listener, uri), "reuse1");
 600                         Assert.AreEqual (expectedIpEndPoint, CreateListenerRequest (listener, uri), "reuse2");
 601                 }
 602
 603                 public IPEndPoint CreateListenerRequest (HttpListener listener, string uri)
 604                 {
 605                         IPEndPoint ipEndPoint = null;
 606                         var mre = new ManualResetEventSlim ();
 607                         listener.BeginGetContext (result => {
 608                                 ipEndPoint = ListenerCallback (result);
 609                                 mre.Set ();
 610                         }, listener);
 611
 612                         var request = (HttpWebRequest) WebRequest.Create (uri);
 613                         request.Method = "POST";
 614
 615                         // We need to write something
 616                         request.GetRequestStream ().Write (new byte [] {(byte)'a'}, 0, 1);
 617                         request.GetRequestStream ().Dispose ();
 618
 619                         // Send request, socket is created or reused.
 620                         var response = request.GetResponse ();
 621
 622                         // Close response so socket can be reused.
 623                         response.Close ();
 624
 625                         mre.Wait ();
 626
 627                         return ipEndPoint;
 628                 }
 629
 630                 public static IPEndPoint ListenerCallback (IAsyncResult result)
 631                 {
 632                         var listener = (HttpListener) result.AsyncState;
 633                         var context = listener.EndGetContext (result);
 634                         var clientEndPoint = context.Request.RemoteEndPoint;
 635
 636                         // Disposing InputStream should not avoid socket reuse
 637                         context.Request.InputStream.Dispose ();
 638
 639                         // Close OutputStream to send response
 640                         context.Response.OutputStream.Close ();
 641
 642                         return clientEndPoint;
 643                 }
 644
 645                 [Test]
 646 #if FEATURE_NO_BSD_SOCKETS
 647                 [ExpectedException (typeof (PlatformNotSupportedException))]
 648 #endif
 649                 public void UserHeaderWithDoubleMultiValue ()
 650                 {
 651                         string uri = "http://localhost:" + NetworkHelpers.FindFreePort () + "/";
 652
 653                         var l = new HttpListener ();
 654                         l.Prefixes.Add (uri);
 655                         l.Start ();
 656                         l.BeginGetContext (ar => {
 657                                 var ctx = l.EndGetContext (ar);
 658
 659                                 var response = ctx.Response;
 660                                 response.Headers.Add ("X-Custom-Header", "A");
 661                                 response.Headers.Add ("X-Custom-Header", "B");
 662
 663                                 response.Close ();
 664                         }, null);
 665
 666                         HttpWebRequest wr = HttpWebRequest.CreateHttp (uri);
 667                         var resp = wr.GetResponse ();
 668                         var vls = resp.Headers.GetValues ("X-Custom-Header");
 669
 670                         Assert.AreEqual (2, vls.Length);
 671
 672                         l.Close ();
 673                 }
 674
 675                 [Test]
 676 #if FEATURE_NO_BSD_SOCKETS
 677                 [ExpectedException (typeof (PlatformNotSupportedException))]
 678 #endif
 679                 public void HttpClientIsDisconnectedCheckForWriteException()
 680                 {
 681                         string uri = "http://localhost:" + NetworkHelpers.FindFreePort () + "/";
 682
 683                         AutoResetEvent exceptionOccuredEvent = new AutoResetEvent (false);
 684                         HttpListener listener = new HttpListener {
 685                                 IgnoreWriteExceptions = false
 686                         };
 687                         listener.Prefixes.Add (uri);
 688                         listener.Start ();
 689                         listener.BeginGetContext (result =>
 690                         {
 691                                 HttpListenerContext context = listener.EndGetContext (result);
 692                                 context.Response.SendChunked = true;
 693                                 context.Request.InputStream.Close ();
 694
 695                                 var bytes = new byte [1024];
 696                                 using(Stream outputStream = context.Response.OutputStream) {
 697                                         try {
 698                                                 while (true)
 699                                                         outputStream.Write (bytes, 0, bytes.Length);
 700                                         } catch {
 701                                                 exceptionOccuredEvent.Set ();
 702                                         }
 703                                 }
 704                         }, null);
 705
 706                         Task.Factory.StartNew (() =>
 707                         {
 708                                 var webRequest = (HttpWebRequest)WebRequest.Create (uri);
 709                                 webRequest.Method = "POST";
 710                                 webRequest.KeepAlive = false;
 711                                 Stream requestStream = webRequest.GetRequestStream ();
 712                                 requestStream.WriteByte (1);
 713                                 requestStream.Close ();
 714                                 using (WebResponse response = webRequest.GetResponse ())
 715                                 using (Stream stream = response.GetResponseStream ()) {
 716                                         byte[] clientBytes = new byte [1024];
 717                                         Assert.IsNotNull (stream, "#01");
 718                                         stream.Read (clientBytes, 0, clientBytes.Length);
 719                                 }
 720                         });
 721
 722                         Assert.IsTrue (exceptionOccuredEvent.WaitOne (15 * 1000), "#02");
 723                 }
 724         }
 725 }
 726