mcs/class/Mono.Security/Mono.Security.Interface/MonoTlsSettings.cs

   1 //
   2 // MonoTlsSettings.cs
   3 //
   4 // Author:
   5 //       Martin Baulig <martin.baulig@xamarin.com>
   6 //
   7 // Copyright (c) 2015 Xamarin, Inc.
   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.Threading;
  28 using System.Security.Cryptography.X509Certificates;
  29
  30 namespace Mono.Security.Interface
  31 {
  32         public sealed class MonoTlsSettings
  33         {
  34                 public MonoRemoteCertificateValidationCallback RemoteCertificateValidationCallback {
  35                         get; set;
  36                 }
  37
  38                 public MonoLocalCertificateSelectionCallback ClientCertificateSelectionCallback {
  39                         get; set;
  40                 }
  41
  42                 public bool CheckCertificateName {
  43                         get { return checkCertName; }
  44                         set { checkCertName = value; }
  45                 }
  46
  47                 public bool CheckCertificateRevocationStatus {
  48                         get { return checkCertRevocationStatus; }
  49                         set { checkCertRevocationStatus = value; }
  50                 }
  51
  52                 public bool? UseServicePointManagerCallback {
  53                         get { return useServicePointManagerCallback; }
  54                         set { useServicePointManagerCallback = value; }
  55                 }
  56
  57                 public bool SkipSystemValidators {
  58                         get { return skipSystemValidators; }
  59                         set { skipSystemValidators = value; }
  60                 }
  61
  62                 public bool CallbackNeedsCertificateChain {
  63                         get { return callbackNeedsChain; }
  64                         set { callbackNeedsChain = value; }
  65                 }
  66
  67                 /*
  68                  * This is only supported if CertificateValidationHelper.SupportsTrustAnchors is true.
  69                  */
  70                 public X509CertificateCollection TrustAnchors {
  71                         get; set;
  72                 }
  73
  74                 public object UserSettings {
  75                         get; set;
  76                 }
  77
  78                 /*
  79                  * If you set this here, then it will override 'ServicePointManager.SecurityProtocol'.
  80                  */
  81                 public TlsProtocols? EnabledProtocols {
  82                         get; set;
  83                 }
  84
  85                 [CLSCompliant (false)]
  86                 public CipherSuiteCode[] EnabledCiphers {
  87                         get; set;
  88                 }
  89
  90                 bool cloned = false;
  91                 bool checkCertName = true;
  92                 bool checkCertRevocationStatus = false;
  93                 bool? useServicePointManagerCallback = null;
  94                 bool skipSystemValidators = false;
  95                 bool callbackNeedsChain = true;
  96                 ICertificateValidator certificateValidator;
  97
  98                 public MonoTlsSettings ()
  99                 {
 100                 }
 101
 102                 static MonoTlsSettings defaultSettings;
 103
 104                 public static MonoTlsSettings DefaultSettings {
 105                         get {
 106                                 if (defaultSettings == null)
 107                                         Interlocked.CompareExchange (ref defaultSettings, new MonoTlsSettings (), null);
 108                                 return defaultSettings;
 109                         }
 110                         set {
 111                                 defaultSettings = value ?? new MonoTlsSettings ();
 112                         }
 113                 }
 114
 115                 public static MonoTlsSettings CopyDefaultSettings ()
 116                 {
 117                         return DefaultSettings.Clone ();
 118                 }
 119
 120                 #region Private APIs
 121
 122                 /*
 123                  * Private APIs - do not use!
 124                  *
 125                  * This is only public to avoid making our internals visible to System.dll.
 126                  *
 127                  */
 128
 129                 [Obsolete ("Do not use outside System.dll!")]
 130                 public ICertificateValidator CertificateValidator {
 131                         get { return certificateValidator; }
 132                 }
 133
 134                 [Obsolete ("Do not use outside System.dll!")]
 135                 public MonoTlsSettings CloneWithValidator (ICertificateValidator validator)
 136                 {
 137                         if (cloned) {
 138                                 this.certificateValidator = validator;
 139                                 return this;
 140                         }
 141
 142                         var copy = new MonoTlsSettings (this);
 143                         copy.certificateValidator = validator;
 144                         return copy;
 145                 }
 146
 147                 public MonoTlsSettings Clone ()
 148                 {
 149                         return new MonoTlsSettings (this);
 150                 }
 151
 152                 MonoTlsSettings (MonoTlsSettings other)
 153                 {
 154                         RemoteCertificateValidationCallback = other.RemoteCertificateValidationCallback;
 155                         ClientCertificateSelectionCallback = other.ClientCertificateSelectionCallback;
 156                         checkCertName = other.checkCertName;
 157                         checkCertRevocationStatus = other.checkCertRevocationStatus;
 158                         UseServicePointManagerCallback = other.useServicePointManagerCallback;
 159                         skipSystemValidators = other.skipSystemValidators;
 160                         callbackNeedsChain = other.callbackNeedsChain;
 161                         UserSettings = other.UserSettings;
 162                         EnabledProtocols = other.EnabledProtocols;
 163                         EnabledCiphers = other.EnabledCiphers;
 164                         TrustAnchors = other.TrustAnchors;
 165                         cloned = true;
 166                 }
 167
 168                 #endregion
 169         }
 170 }
 171