Initial Commit

iTechSharp/srcbc/asn1/x509/NameConstraints.cs

@@ -0,0 +1,90 @@
+using System;
+using System.Collections;
+
+namespace Org.BouncyCastle.Asn1.X509
+{
+	public class NameConstraints
+		: Asn1Encodable
+	{
+		private Asn1Sequence permitted, excluded;
+
+		public NameConstraints(
+			Asn1Sequence seq)
+		{
+			foreach (Asn1TaggedObject o in seq)
+			{
+				switch (o.TagNo)
+				{
+					case 0:
+						permitted = Asn1Sequence.GetInstance(o, false);
+						break;
+					case 1:
+						excluded = Asn1Sequence.GetInstance(o, false);
+						break;
+				}
+			}
+		}
+
+		/**
+		 * Constructor from a given details.
+		 *
+		 * <p>permitted and excluded are Vectors of GeneralSubtree objects.</p>
+		 *
+		 * @param permitted Permitted subtrees
+		 * @param excluded Excluded subtrees
+		 */
+		public NameConstraints(
+			ArrayList	permitted,
+			ArrayList	excluded)
+		{
+			if (permitted != null)
+			{
+				this.permitted = createSequence(permitted);
+			}
+
+			if (excluded != null)
+			{
+				this.excluded = createSequence(excluded);
+			}
+		}
+
+		private DerSequence createSequence(
+			ArrayList subtree)
+		{
+			GeneralSubtree[] gsts = (GeneralSubtree[]) subtree.ToArray(typeof(GeneralSubtree));
+
+			return new DerSequence(gsts);
+		}
+
+		public Asn1Sequence PermittedSubtrees
+		{
+			get { return permitted; }
+		}
+
+		public Asn1Sequence ExcludedSubtrees
+		{
+			get { return excluded; }
+		}
+
+		/*
+		 * NameConstraints ::= SEQUENCE { permittedSubtrees [0] GeneralSubtrees
+		 * OPTIONAL, excludedSubtrees [1] GeneralSubtrees OPTIONAL }
+		 */
+		public override Asn1Object ToAsn1Object()
+		{
+			Asn1EncodableVector v = new Asn1EncodableVector();
+
+			if (permitted != null)
+			{
+				v.Add(new DerTaggedObject(false, 0, permitted));
+			}
+
+			if (excluded != null)
+			{
+				v.Add(new DerTaggedObject(false, 1, excluded));
+			}
+
+			return new DerSequence(v);
+		}
+	}
+}