mcs/class/System/System.Security.Cryptography.X509Certificates/X509Helper2.cs

   1 //
   2 // X509Helper2.cs
   3 //
   4 // Authors:
   5 //      Martin Baulig  <martin.baulig@xamarin.com>
   6 //
   7 // Copyright (C) 2016 Xamarin, Inc. (http://www.xamarin.com)
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 #if SECURITY_DEP
  30 #if MONO_SECURITY_ALIAS
  31 extern alias MonoSecurity;
  32 #endif
  33
  34 #if MONO_SECURITY_ALIAS
  35 using MonoSecurity::Mono.Security.Interface;
  36 #else
  37 using Mono.Security.Interface;
  38 #endif
  39
  40 using Mono.Btls;
  41 #endif
  42
  43 using System.IO;
  44 using System.Text;
  45
  46 namespace System.Security.Cryptography.X509Certificates
  47 {
  48         internal static class X509Helper2
  49         {
  50                 internal static long GetSubjectNameHash (X509Certificate certificate)
  51                 {
  52                         return GetSubjectNameHash (certificate.Impl);
  53                 }
  54
  55                 internal static long GetSubjectNameHash (X509CertificateImpl impl)
  56                 {
  57 #if SECURITY_DEP
  58                         using (var x509 = GetNativeInstance (impl))
  59                                 return GetSubjectNameHash (x509);
  60 #else
  61                         throw new NotSupportedException ();
  62 #endif
  63                 }
  64
  65                 internal static void ExportAsPEM (X509Certificate certificate, Stream stream, bool includeHumanReadableForm)
  66                 {
  67                         ExportAsPEM (certificate.Impl, stream, includeHumanReadableForm);
  68                 }
  69
  70                 internal static void ExportAsPEM (X509CertificateImpl impl, Stream stream, bool includeHumanReadableForm)
  71                 {
  72 #if SECURITY_DEP
  73                         using (var x509 = GetNativeInstance (impl))
  74                                 ExportAsPEM (x509, stream, includeHumanReadableForm);
  75 #else
  76                         throw new NotSupportedException ();
  77 #endif
  78                 }
  79
  80 #if SECURITY_DEP
  81                 internal static void Initialize ()
  82                 {
  83                         X509Helper.InstallNativeHelper (new MyNativeHelper ());
  84                 }
  85
  86                 internal static void ThrowIfContextInvalid (X509CertificateImpl impl)
  87                 {
  88                         X509Helper.ThrowIfContextInvalid (impl);
  89                 }
  90
  91                 static MonoBtlsX509 GetNativeInstance (X509CertificateImpl impl)
  92                 {
  93                         ThrowIfContextInvalid (impl);
  94                         var btlsImpl = impl as X509CertificateImplBtls;
  95                         if (btlsImpl != null)
  96                                 return btlsImpl.X509.Copy ();
  97                         else
  98                                 return MonoBtlsX509.LoadFromData (impl.GetRawCertData (), MonoBtlsX509Format.DER);
  99                 }
 100
 101                 internal static long GetSubjectNameHash (MonoBtlsX509 x509)
 102                 {
 103                         using (var subject = x509.GetSubjectName ())
 104                                 return subject.GetHash ();
 105                 }
 106
 107                 internal static void ExportAsPEM (MonoBtlsX509 x509, Stream stream, bool includeHumanReadableForm)
 108                 {
 109                         using (var bio = MonoBtlsBio.CreateMonoStream (stream)) {
 110                                 x509.ExportAsPEM (bio, includeHumanReadableForm);
 111                         }
 112                 }
 113
 114                 internal static X509Certificate2Impl Import (byte[] rawData, string password, X509KeyStorageFlags keyStorageFlags)
 115                 {
 116                         var provider = MonoTlsProviderFactory.GetProvider ();
 117                         if (provider.HasNativeCertificates) {
 118                                 var impl = provider.GetNativeCertificate (rawData, password, keyStorageFlags);
 119                                 return impl;
 120                         } else {
 121                                 var impl = new X509Certificate2ImplMono ();
 122                                 impl.Import (rawData, password, keyStorageFlags);
 123                                 return impl;
 124                         }
 125                 }
 126
 127                 internal static X509Certificate2Impl Import (X509Certificate cert)
 128                 {
 129                         var provider = MonoTlsProviderFactory.GetProvider ();
 130                         if (provider.HasNativeCertificates) {
 131                                 var impl = provider.GetNativeCertificate (cert);
 132                                 return impl;
 133                         }
 134                         var impl2 = cert.Impl as X509Certificate2Impl;
 135                         if (impl2 != null)
 136                                 return (X509Certificate2Impl)impl2.Clone ();
 137                         return Import (cert.GetRawCertData (), null, X509KeyStorageFlags.DefaultKeySet);
 138                 }
 139
 140                 internal static X509ChainImpl CreateChainImpl (bool useMachineContext)
 141                 {
 142                         return new X509ChainImplMono (useMachineContext);
 143                 }
 144
 145                 public static bool IsValid (X509ChainImpl impl)
 146                 {
 147                         return impl != null && impl.IsValid;
 148                 }
 149
 150                 internal static void ThrowIfContextInvalid (X509ChainImpl impl)
 151                 {
 152                         if (!IsValid (impl))
 153                                 throw GetInvalidChainContextException ();
 154                 }
 155
 156                 internal static Exception GetInvalidChainContextException ()
 157                 {
 158                         return new CryptographicException (Locale.GetText ("Chain instance is empty."));
 159                 }
 160
 161                 class MyNativeHelper : INativeCertificateHelper
 162                 {
 163                         public X509CertificateImpl Import (
 164                                 byte[] data, string password, X509KeyStorageFlags flags)
 165                         {
 166                                 return X509Helper2.Import (data, password, flags);
 167                         }
 168
 169                         public X509CertificateImpl Import (X509Certificate cert)
 170                         {
 171                                 return X509Helper2.Import (cert);
 172                         }
 173                 }
 174 #endif
 175         }
 176 }