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//
// X509Helper2.cs
//
// Authors:
// Martin Baulig <martin.baulig@xamarin.com>
//
// Copyright (C) 2016 Xamarin, Inc. (http://www.xamarin.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
#if MONO_SECURITY_ALIAS
extern alias MonoSecurity;
#endif
#if MONO_SECURITY_ALIAS
using MX = MonoSecurity::Mono.Security.X509;
#else
using MX = Mono.Security.X509;
#endif
#if MONO_FEATURE_BTLS
using Mono.Btls;
#endif
using System.IO;
using System.Text;
using Mono;
namespace System.Security.Cryptography.X509Certificates
{
internal static class X509Helper2
{
/*
* This is used by X509ChainImplMono
*
* Some of the missing APIs such as X509v3 extensions can be added to the native
* BTLS implementation.
*
* We should also consider replacing X509ChainImplMono with a new X509ChainImplBtls
* at some point.
*/
[MonoTODO ("Investigate replacement; see comments in source.")]
internal static MX.X509Certificate GetMonoCertificate (X509Certificate2 certificate)
{
if (certificate.Impl is X509Certificate2ImplMono monoImpl)
return monoImpl.MonoCertificate;
return new MX.X509Certificate (certificate.RawData);
}
internal static X509ChainImpl CreateChainImpl (bool useMachineContext)
{
return new X509ChainImplMono (useMachineContext);
}
public static bool IsValid (X509ChainImpl impl)
{
return impl != null && impl.IsValid;
}
internal static void ThrowIfContextInvalid (X509ChainImpl impl)
{
if (!IsValid (impl))
throw GetInvalidChainContextException ();
}
internal static Exception GetInvalidChainContextException ()
{
return new CryptographicException (Locale.GetText ("Chain instance is empty."));
}
[Obsolete ("This is only used by Mono.Security's X509Store and will be replaced shortly.")]
internal static long GetSubjectNameHash (X509Certificate certificate)
{
#if MONO_FEATURE_BTLS
X509Helper.ThrowIfContextInvalid (certificate.Impl);
using (var x509 = GetNativeInstance (certificate.Impl))
using (var subject = x509.GetSubjectName ())
return subject.GetHash ();
#else
throw new PlatformNotSupportedException ();
#endif
}
[Obsolete ("This is only used by Mono.Security's X509Store and will be replaced shortly.")]
internal static void ExportAsPEM (X509Certificate certificate, Stream stream, bool includeHumanReadableForm)
{
#if MONO_FEATURE_BTLS
X509Helper.ThrowIfContextInvalid (certificate.Impl);
using (var x509 = GetNativeInstance (certificate.Impl))
using (var bio = MonoBtlsBio.CreateMonoStream (stream))
x509.ExportAsPEM (bio, includeHumanReadableForm);
#else
throw new PlatformNotSupportedException ();
#endif
}
#if MONO_FEATURE_BTLS
static MonoBtlsX509 GetNativeInstance (X509CertificateImpl impl)
{
X509Helper.ThrowIfContextInvalid (impl);
var btlsImpl = impl as X509CertificateImplBtls;
if (btlsImpl != null)
return btlsImpl.X509.Copy ();
else
return MonoBtlsX509.LoadFromData (impl.RawData, MonoBtlsX509Format.DER);
}
#endif
}
}
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