Initial Commit

iTechSharp/srcbc/x509/AttributeCertificateIssuer.cs

@@ -0,0 +1,177 @@
+using System;
+using System.Collections;
+
+using Org.BouncyCastle.Asn1;
+using Org.BouncyCastle.Asn1.X509;
+using Org.BouncyCastle.Security;
+using Org.BouncyCastle.X509.Store;
+
+namespace Org.BouncyCastle.X509
+{
+	/**
+	 * Carrying class for an attribute certificate issuer.
+	 */
+	public class AttributeCertificateIssuer
+		//: CertSelector, Selector
+		: IX509Selector
+	{
+		internal readonly Asn1Encodable form;
+
+		/**
+		 * Set the issuer directly with the ASN.1 structure.
+		 * 
+		 * @param issuer The issuer
+		 */
+		internal AttributeCertificateIssuer(
+			AttCertIssuer issuer)
+		{
+			form = issuer.Issuer;
+		}
+
+		public AttributeCertificateIssuer(
+			X509Name principal)
+		{
+//			form = new V2Form(GeneralNames.GetInstance(new DerSequence(new GeneralName(principal))));
+			form = new V2Form(new GeneralNames(new GeneralName(principal)));
+		}
+
+		private object[] GetNames()
+		{
+			GeneralNames name;
+			if (form is V2Form)
+			{
+				name = ((V2Form)form).IssuerName;
+			}
+			else
+			{
+				name = (GeneralNames)form;
+			}
+
+			GeneralName[] names = name.GetNames();
+
+			ArrayList l = new ArrayList(names.Length);
+
+			for (int i = 0; i != names.Length; i++)
+			{
+				if (names[i].TagNo == GeneralName.DirectoryName)
+				{
+					l.Add(X509Name.GetInstance(names[i].Name));
+				}
+			}
+
+			return l.ToArray();
+		}
+
+		/// <summary>Return any principal objects inside the attribute certificate issuer object.</summary>
+		/// <returns>An array of IPrincipal objects (usually X509Principal).</returns>
+		public X509Name[] GetPrincipals()
+		{
+			object[] p = this.GetNames();
+			ArrayList l = new ArrayList(p.Length);
+
+			for (int i = 0; i != p.Length; i++)
+			{
+				if (p[i] is X509Name)
+				{
+					l.Add(p[i]);
+				}
+			}
+
+			return (X509Name[]) l.ToArray(typeof(X509Name));
+		}
+
+		private bool MatchesDN(
+			X509Name		subject,
+			GeneralNames	targets)
+		{
+			GeneralName[] names = targets.GetNames();
+
+			for (int i = 0; i != names.Length; i++)
+			{
+				GeneralName gn = names[i];
+
+				if (gn.TagNo == GeneralName.DirectoryName)
+				{
+					try
+					{
+						if (X509Name.GetInstance(gn.Name).Equivalent(subject))
+						{
+							return true;
+						}
+					}
+					catch (Exception)
+					{
+					}
+				}
+			}
+
+			return false;
+		}
+
+		public object Clone()
+		{
+			return new AttributeCertificateIssuer(AttCertIssuer.GetInstance(form));
+		}
+
+		public bool Match(
+//			Certificate cert)
+			X509Certificate x509Cert)
+		{
+//			if (!(cert is X509Certificate))
+//			{
+//				return false;
+//			}
+//
+//			X509Certificate x509Cert = (X509Certificate)cert;
+
+			if (form is V2Form)
+			{
+				V2Form issuer = (V2Form) form;
+				if (issuer.BaseCertificateID != null)
+				{
+					return issuer.BaseCertificateID.Serial.Value.Equals(x509Cert.SerialNumber)
+						&& MatchesDN(x509Cert.IssuerDN, issuer.BaseCertificateID.Issuer);
+				}
+
+				return MatchesDN(x509Cert.SubjectDN, issuer.IssuerName);
+			}
+
+			return MatchesDN(x509Cert.SubjectDN, (GeneralNames) form);
+		}
+
+		public override bool Equals(
+			object obj)
+		{
+			if (obj == this)
+			{
+				return true;
+			}
+
+			if (!(obj is AttributeCertificateIssuer))
+			{
+				return false;
+			}
+
+			AttributeCertificateIssuer other = (AttributeCertificateIssuer)obj;
+
+			return this.form.Equals(other.form);
+		}
+
+		public override int GetHashCode()
+		{
+			return this.form.GetHashCode();
+		}
+
+		public bool Match(
+			object obj)
+		{
+			if (!(obj is X509Certificate))
+			{
+				return false;
+			}
+
+			//return Match((Certificate)obj);
+			return Match((X509Certificate)obj);
+		}
+	}
+}