mcs/class/System.Net.Http.WebRequest/System.Net.Http.WebRequest/WebRequestHandler.cs

   1 //
   2 // WebRequestHandler.cs
   3 //
   4 // Author:
   5 //       Martin Baulig <martin.baulig@xamarin.com>
   6 //
   7 // Copyright (c) 2013 Xamarin Inc. (http://www.xamarin.com)
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining a copy
  10 // of this software and associated documentation files (the "Software"), to deal
  11 // in the Software without restriction, including without limitation the rights
  12 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  13 // copies of the Software, and to permit persons to whom the Software is
  14 // furnished to do so, subject to the following conditions:
  15 //
  16 // The above copyright notice and this permission notice shall be included in
  17 // all copies or substantial portions of the Software.
  18 //
  19 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  20 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  22 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  23 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  24 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  25 // THE SOFTWARE.
  26 using System;
  27 using System.Net.Cache;
  28 using System.Net.Security;
  29 using System.Security.Principal;
  30 using System.Security.Cryptography.X509Certificates;
  31
  32 namespace System.Net.Http
  33 {
  34         public class WebRequestHandler : HttpClientHandler
  35         {
  36                 bool allowPipelining;
  37                 RequestCachePolicy cachePolicy;
  38                 AuthenticationLevel authenticationLevel;
  39                 TimeSpan continueTimeout;
  40                 TokenImpersonationLevel impersonationLevel;
  41                 int maxResponseHeadersLength;
  42                 int readWriteTimeout;
  43                 RemoteCertificateValidationCallback serverCertificateValidationCallback;
  44                 bool unsafeAuthenticatedConnectionSharing;
  45                 X509CertificateCollection clientCertificates;
  46
  47                 public WebRequestHandler ()
  48                 {
  49                         allowPipelining = true;
  50                         authenticationLevel = AuthenticationLevel.MutualAuthRequested;
  51                         cachePolicy = System.Net.WebRequest.DefaultCachePolicy;
  52                         continueTimeout = TimeSpan.FromMilliseconds (350);
  53                         impersonationLevel = TokenImpersonationLevel.Delegation;
  54                         maxResponseHeadersLength = HttpWebRequest.DefaultMaximumResponseHeadersLength;
  55                         readWriteTimeout = 300000;
  56                         serverCertificateValidationCallback = null;
  57                         unsafeAuthenticatedConnectionSharing = false;
  58                         clientCertificates = new X509CertificateCollection();
  59                 }
  60
  61                 public bool AllowPipelining {
  62                         get { return allowPipelining; }
  63                         set {
  64                                 EnsureModifiability ();
  65                                 allowPipelining = value;
  66                         }
  67                 }
  68
  69                 public RequestCachePolicy CachePolicy {
  70                         get { return cachePolicy; }
  71                         set {
  72                                 EnsureModifiability ();
  73                                 cachePolicy = value;
  74                         }
  75                 }
  76
  77                 public AuthenticationLevel AuthenticationLevel {
  78                         get { return authenticationLevel; }
  79                         set {
  80                                 EnsureModifiability ();
  81                                 authenticationLevel = value;
  82                         }
  83                 }
  84
  85                 public X509CertificateCollection ClientCertificates {
  86                         get {
  87                                 if (this.ClientCertificateOptions != ClientCertificateOption.Manual) {
  88                                         throw new InvalidOperationException("The ClientCertificateOptions property must be set to 'Manual' to use this property.");
  89                                 }
  90
  91                                 return clientCertificates;
  92                         }
  93                 }
  94
  95                 [MonoTODO]
  96                 public TimeSpan ContinueTimeout {
  97                         get { return continueTimeout; }
  98                         set {
  99                                 EnsureModifiability ();
 100                                 continueTimeout = value;
 101                         }
 102                 }
 103
 104                 public TokenImpersonationLevel ImpersonationLevel {
 105                         get { return impersonationLevel; }
 106                         set {
 107                                 EnsureModifiability ();
 108                                 impersonationLevel = value;
 109                         }
 110                 }
 111
 112                 public int MaxResponseHeadersLength {
 113                         get { return maxResponseHeadersLength; }
 114                         set {
 115                                 EnsureModifiability ();
 116                                 maxResponseHeadersLength = value;
 117                         }
 118                 }
 119
 120                 public int ReadWriteTimeout {
 121                         get { return readWriteTimeout; }
 122                         set {
 123                                 EnsureModifiability ();
 124                                 readWriteTimeout = value;
 125                         }
 126                 }
 127
 128                 public RemoteCertificateValidationCallback ServerCertificateValidationCallback {
 129                         get { return serverCertificateValidationCallback; }
 130                         set {
 131                                 EnsureModifiability ();
 132                                 serverCertificateValidationCallback = value;
 133                         }
 134                 }
 135
 136                 public bool UnsafeAuthenticatedConnectionSharing {
 137                         get { return unsafeAuthenticatedConnectionSharing; }
 138                         set {
 139                                 EnsureModifiability ();
 140                                 unsafeAuthenticatedConnectionSharing = value;
 141                         }
 142                 }
 143
 144                 internal override HttpWebRequest CreateWebRequest (HttpRequestMessage request)
 145                 {
 146                         HttpWebRequest wr = base.CreateWebRequest (request);
 147
 148                         wr.Pipelined = allowPipelining;
 149                         wr.AuthenticationLevel = authenticationLevel;
 150                         wr.CachePolicy = cachePolicy;
 151                         wr.ImpersonationLevel = impersonationLevel;
 152                         wr.MaximumResponseHeadersLength = maxResponseHeadersLength;
 153                         wr.ReadWriteTimeout = readWriteTimeout;
 154                         wr.UnsafeAuthenticatedConnectionSharing = unsafeAuthenticatedConnectionSharing;
 155                         wr.ServerCertificateValidationCallback = serverCertificateValidationCallback;
 156
 157                         if (this.ClientCertificateOptions == ClientCertificateOption.Manual) {
 158                                 wr.ClientCertificates = clientCertificates;
 159                         }
 160
 161                         return wr;
 162                 }
 163         }
 164 }
 165