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 #if HAVE_BTLS
  41 using Mono.Btls;
  42 #endif
  43 #endif
  44
  45 using System.IO;
  46 using System.Text;
  47
  48 namespace System.Security.Cryptography.X509Certificates
  49 {
  50         internal static class X509Helper2
  51         {
  52                 internal static long GetSubjectNameHash (X509Certificate certificate)
  53                 {
  54                         return GetSubjectNameHash (certificate.Impl);
  55                 }
  56
  57                 internal static long GetSubjectNameHash (X509CertificateImpl impl)
  58                 {
  59 #if SECURITY_DEP && HAVE_BTLS
  60                         using (var x509 = GetNativeInstance (impl))
  61                                 return GetSubjectNameHash (x509);
  62 #else
  63                         throw new NotSupportedException ();
  64 #endif
  65                 }
  66
  67                 internal static void ExportAsPEM (X509Certificate certificate, Stream stream, bool includeHumanReadableForm)
  68                 {
  69                         ExportAsPEM (certificate.Impl, stream, includeHumanReadableForm);
  70                 }
  71
  72                 internal static void ExportAsPEM (X509CertificateImpl impl, Stream stream, bool includeHumanReadableForm)
  73                 {
  74 #if SECURITY_DEP && HAVE_BTLS
  75                         using (var x509 = GetNativeInstance (impl))
  76                                 ExportAsPEM (x509, stream, includeHumanReadableForm);
  77 #else
  78                         throw new NotSupportedException ();
  79 #endif
  80                 }
  81
  82 #if SECURITY_DEP
  83                 internal static void Initialize ()
  84                 {
  85                         X509Helper.InstallNativeHelper (new MyNativeHelper ());
  86                 }
  87
  88                 internal static void ThrowIfContextInvalid (X509CertificateImpl impl)
  89                 {
  90                         X509Helper.ThrowIfContextInvalid (impl);
  91                 }
  92
  93 #if HAVE_BTLS
  94                 static MonoBtlsX509 GetNativeInstance (X509CertificateImpl impl)
  95                 {
  96                         ThrowIfContextInvalid (impl);
  97                         var btlsImpl = impl as X509CertificateImplBtls;
  98                         if (btlsImpl != null)
  99                                 return btlsImpl.X509.Copy ();
 100                         else
 101                                 return MonoBtlsX509.LoadFromData (impl.GetRawCertData (), MonoBtlsX509Format.DER);
 102                 }
 103
 104                 internal static long GetSubjectNameHash (MonoBtlsX509 x509)
 105                 {
 106                         using (var subject = x509.GetSubjectName ())
 107                                 return subject.GetHash ();
 108                 }
 109
 110                 internal static void ExportAsPEM (MonoBtlsX509 x509, Stream stream, bool includeHumanReadableForm)
 111                 {
 112                         using (var bio = MonoBtlsBio.CreateMonoStream (stream)) {
 113                                 x509.ExportAsPEM (bio, includeHumanReadableForm);
 114                         }
 115                 }
 116 #endif
 117
 118                 internal static X509Certificate2Impl Import (byte[] rawData, string password, X509KeyStorageFlags keyStorageFlags)
 119                 {
 120                         var provider = MonoTlsProviderFactory.GetProvider ();
 121                         if (provider.HasNativeCertificates) {
 122                                 var impl = provider.GetNativeCertificate (rawData, password, keyStorageFlags);
 123                                 return impl;
 124                         } else {
 125                                 var impl = new X509Certificate2ImplMono ();
 126                                 impl.Import (rawData, password, keyStorageFlags);
 127                                 return impl;
 128                         }
 129                 }
 130
 131                 internal static X509Certificate2Impl Import (X509Certificate cert)
 132                 {
 133                         var provider = MonoTlsProviderFactory.GetProvider ();
 134                         if (provider.HasNativeCertificates) {
 135                                 var impl = provider.GetNativeCertificate (cert);
 136                                 return impl;
 137                         }
 138                         var impl2 = cert.Impl as X509Certificate2Impl;
 139                         if (impl2 != null)
 140                                 return (X509Certificate2Impl)impl2.Clone ();
 141                         return Import (cert.GetRawCertData (), null, X509KeyStorageFlags.DefaultKeySet);
 142                 }
 143
 144                 internal static X509ChainImpl CreateChainImpl (bool useMachineContext)
 145                 {
 146                         return new X509ChainImplMono (useMachineContext);
 147                 }
 148
 149                 public static bool IsValid (X509ChainImpl impl)
 150                 {
 151                         return impl != null && impl.IsValid;
 152                 }
 153
 154                 internal static void ThrowIfContextInvalid (X509ChainImpl impl)
 155                 {
 156                         if (!IsValid (impl))
 157                                 throw GetInvalidChainContextException ();
 158                 }
 159
 160                 internal static Exception GetInvalidChainContextException ()
 161                 {
 162                         return new CryptographicException (Locale.GetText ("Chain instance is empty."));
 163                 }
 164
 165                 class MyNativeHelper : INativeCertificateHelper
 166                 {
 167                         public X509CertificateImpl Import (
 168                                 byte[] data, string password, X509KeyStorageFlags flags)
 169                         {
 170                                 return X509Helper2.Import (data, password, flags);
 171                         }
 172
 173                         public X509CertificateImpl Import (X509Certificate cert)
 174                         {
 175                                 return X509Helper2.Import (cert);
 176                         }
 177                 }
 178 #endif
 179         }
 180 }