mcs/class/System/Mono.Net.Security/MonoTlsStream.cs

   1 //
   2 // MonoTlsStream.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
  27 #if SECURITY_DEP
  28 #if MONO_SECURITY_ALIAS
  29 extern alias MonoSecurity;
  30 #endif
  31 #if MONO_X509_ALIAS
  32 extern alias PrebuiltSystem;
  33 #endif
  34
  35 #if MONO_SECURITY_ALIAS
  36 using MonoSecurity::Mono.Security.Interface;
  37 #else
  38 using Mono.Security.Interface;
  39 #endif
  40 #if MONO_X509_ALIAS
  41 using XX509CertificateCollection = PrebuiltSystem::System.Security.Cryptography.X509Certificates.X509CertificateCollection;
  42 #else
  43 using XX509CertificateCollection = System.Security.Cryptography.X509Certificates.X509CertificateCollection;
  44 #endif
  45 #endif
  46
  47 using System;
  48 using System.IO;
  49 using System.Net;
  50 using System.Net.Sockets;
  51 using System.Net.Security;
  52 using System.Threading.Tasks;
  53 using System.Security.Authentication;
  54 using System.Security.Cryptography.X509Certificates;
  55 using System.Security.Principal;
  56 using System.Security.Cryptography;
  57
  58 namespace Mono.Net.Security
  59 {
  60         class MonoTlsStream
  61         {
  62                 readonly IMonoTlsProvider provider;
  63                 readonly HttpWebRequest request;
  64                 readonly NetworkStream networkStream;
  65
  66                 IMonoSslStream sslStream;
  67                 WebExceptionStatus status;
  68
  69                 internal HttpWebRequest Request {
  70                         get { return request; }
  71                 }
  72
  73                 internal IMonoSslStream SslStream {
  74                         get { return sslStream; }
  75                 }
  76
  77                 internal WebExceptionStatus ExceptionStatus {
  78                         get { return status; }
  79                 }
  80
  81                 internal bool CertificateValidationFailed {
  82                         get; set;
  83                 }
  84
  85 #if SECURITY_DEP
  86                 readonly ChainValidationHelper validationHelper;
  87                 readonly MonoTlsSettings settings;
  88
  89                 public MonoTlsStream (HttpWebRequest request, NetworkStream networkStream)
  90                 {
  91                         this.request = request;
  92                         this.networkStream = networkStream;
  93
  94                         settings = request.TlsSettings;
  95                         provider = request.TlsProvider ?? MonoTlsProviderFactory.GetProviderInternal ();
  96                         status = WebExceptionStatus.SecureChannelFailure;
  97
  98                         validationHelper = ChainValidationHelper.Create (provider.Provider, ref settings, this);
  99                 }
 100
 101                 internal Stream CreateStream (byte[] buffer)
 102                 {
 103                         sslStream = provider.CreateSslStream (networkStream, false, settings);
 104
 105                         try {
 106                                 sslStream.AuthenticateAsClient (
 107                                         request.Address.Host, (XX509CertificateCollection)(object)request.ClientCertificates,
 108                                         (SslProtocols)ServicePointManager.SecurityProtocol,
 109                                         ServicePointManager.CheckCertificateRevocationList);
 110
 111                                 status = WebExceptionStatus.Success;
 112                         } finally {
 113                                 if (CertificateValidationFailed)
 114                                         status = WebExceptionStatus.TrustFailure;
 115
 116                                 request.ServicePoint.SetClientCertificate (sslStream.InternalLocalCertificate);
 117                                 if (status != WebExceptionStatus.Success)
 118                                         sslStream = null;
 119                         }
 120
 121                         try {
 122                                 if (buffer != null)
 123                                         sslStream.Write (buffer, 0, buffer.Length);
 124                         } catch {
 125                                 status = WebExceptionStatus.SendFailure;
 126                                 sslStream = null;
 127                                 throw;
 128                         }
 129
 130                         return sslStream.AuthenticatedStream;
 131                 }
 132 #endif
 133         }
 134 }