Imported Upstream version 4.3.2.467

Former-commit-id: 9c2cb47f45fa221e661ab616387c9cda183f283d

mcs/class/corlib/System.Security.Cryptography.X509Certificates/X509CertificateImpl.cs

@@ -0,0 +1,148 @@
+//
+// X509Helpers.cs: X.509 helper and utility functions.
+//
+// Authors:
+//	Martin Baulig  <martin.baulig@xamarin.com>
+//
+// Copyright (C) 2015 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.
+//
+namespace System.Security.Cryptography.X509Certificates
+{
+	internal abstract class X509CertificateImpl : IDisposable
+	{
+		public abstract bool IsValid {
+			get;
+		}
+
+		public abstract IntPtr Handle {
+			get;
+		}
+
+		protected void ThrowIfContextInvalid ()
+		{
+			if (!IsValid)
+				throw X509Helper.GetInvalidContextException ();
+		}
+
+		public abstract X509CertificateImpl Clone ();
+
+		public abstract string GetSubjectSummary ();
+
+		public abstract string GetIssuerName (bool legacyV1Mode);
+
+		public abstract string GetSubjectName (bool legacyV1Mode);
+
+		public abstract byte[] GetRawCertData ();
+
+		public abstract DateTime GetEffectiveDateString ();
+
+		public abstract DateTime GetExpirationDateString ();
+
+		byte[] cachedCertificateHash;
+
+		public byte[] GetCertHash ()
+		{
+			ThrowIfContextInvalid ();
+			if (cachedCertificateHash == null)
+				cachedCertificateHash = GetCertHash (false);
+			return cachedCertificateHash;
+		}
+
+		protected abstract byte[] GetCertHash (bool lazy);
+
+		public override int GetHashCode ()
+		{
+			if (!IsValid)
+				return 0;
+			if (cachedCertificateHash == null)
+				cachedCertificateHash = GetCertHash (true);
+			// return the integer of the first 4 bytes of the cert hash
+			if ((cachedCertificateHash != null) && (cachedCertificateHash.Length >= 4))
+				return ((cachedCertificateHash [0] << 24) | (cachedCertificateHash [1] << 16) |
+					(cachedCertificateHash [2] << 8) | cachedCertificateHash [3]);
+			else
+				return 0;
+		}
+
+		public abstract bool Equals (X509CertificateImpl other, out bool result);
+
+		public abstract string GetKeyAlgorithm ();
+
+		public abstract byte[] GetKeyAlgorithmParameters ();
+
+		public abstract byte[] GetPublicKey ();
+
+		public abstract byte[] GetSerialNumber ();
+
+		public abstract byte[] Export (X509ContentType contentType, byte[] password);
+
+		public abstract string ToString (bool full);
+
+		public override bool Equals (object obj)
+		{
+			var other = obj as X509CertificateImpl;
+			if (other == null)
+				return false;
+
+			if (!IsValid || !other.IsValid)
+				return false;
+
+			bool result;
+			if (Equals (other, out result))
+				return result;
+
+			var ourRaw = GetRawCertData ();
+			var theirRaw = other.GetRawCertData ();
+
+			if (ourRaw == null)
+				return theirRaw == null;
+			else if (theirRaw == null)
+				return false;
+
+			if (ourRaw.Length != theirRaw.Length)
+				return false;
+
+			for (int i = 0; i < ourRaw.Length; i++) {
+				if (ourRaw [i] != theirRaw [i])
+					return false;
+			}
+
+			return true;
+		}
+
+		public void Dispose ()
+		{
+			Dispose (true);
+			GC.SuppressFinalize (this);
+		}
+
+		protected virtual void Dispose (bool disposing)
+		{
+			cachedCertificateHash = null;
+		}
+
+		~X509CertificateImpl ()
+		{
+			Dispose (false);
+		}
+	}
+}