Initial Commit

iTechSharp/srcbc/asn1/isismtt/x509/NamingAuthority.cs

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+using System;
+using System.Collections;
+
+using Org.BouncyCastle.Asn1.X500;
+
+namespace Org.BouncyCastle.Asn1.IsisMtt.X509
+{
+	/**
+	* Names of authorities which are responsible for the administration of title
+	* registers.
+	* 
+	* <pre>
+	*             NamingAuthority ::= SEQUENCE 
+	*             {
+	*               namingAuthorityID OBJECT IDENTIFIER OPTIONAL,
+	*               namingAuthorityUrl IA5String OPTIONAL,
+	*               namingAuthorityText DirectoryString(SIZE(1..128)) OPTIONAL
+	*             }
+	* </pre>
+	* @see Org.BouncyCastle.Asn1.IsisMtt.X509.AdmissionSyntax
+	* 
+	*/
+	public class NamingAuthority
+		: Asn1Encodable
+	{
+		/**
+		* Profession OIDs should always be defined under the OID branch of the
+		* responsible naming authority. At the time of this writing, the work group
+		* <20>Recht, Wirtschaft, Steuern<72> (<28>Law, Economy, Taxes<65>) is registered as the
+		* first naming authority under the OID id-isismtt-at-namingAuthorities.
+		*/
+		public static readonly DerObjectIdentifier IdIsisMttATNamingAuthoritiesRechtWirtschaftSteuern
+			= new DerObjectIdentifier(IsisMttObjectIdentifiers.IdIsisMttATNamingAuthorities + ".1");
+
+		private readonly DerObjectIdentifier	namingAuthorityID;
+		private readonly string					namingAuthorityUrl;
+		private readonly DirectoryString		namingAuthorityText;
+
+		public static NamingAuthority GetInstance(
+			object obj)
+		{
+			if (obj == null || obj is NamingAuthority)
+			{
+				return (NamingAuthority) obj;
+			}
+
+			if (obj is Asn1Sequence)
+			{
+				return new NamingAuthority((Asn1Sequence) obj);
+			}
+
+			throw new ArgumentException("unknown object in factory: " + obj.GetType().Name, "obj");
+		}
+
+		public static NamingAuthority GetInstance(
+			Asn1TaggedObject	obj,
+			bool				isExplicit)
+		{
+			return GetInstance(Asn1Sequence.GetInstance(obj, isExplicit));
+		}
+
+		/**
+		* Constructor from Asn1Sequence.
+		* <p/>
+		* <p/>
+		* <pre>
+		*             NamingAuthority ::= SEQUENCE
+		*             {
+		*               namingAuthorityID OBJECT IDENTIFIER OPTIONAL,
+		*               namingAuthorityUrl IA5String OPTIONAL,
+		*               namingAuthorityText DirectoryString(SIZE(1..128)) OPTIONAL
+		*             }
+		* </pre>
+		*
+		* @param seq The ASN.1 sequence.
+		*/
+		private NamingAuthority(
+			Asn1Sequence seq)
+		{
+			if (seq.Count > 3)
+				throw new ArgumentException("Bad sequence size: " + seq.Count);
+
+			IEnumerator e = seq.GetEnumerator();
+
+			if (e.MoveNext())
+			{
+				Asn1Encodable o = (Asn1Encodable) e.Current;
+				if (o is DerObjectIdentifier)
+				{
+					namingAuthorityID = (DerObjectIdentifier) o;
+				}
+				else if (o is DerIA5String)
+				{
+					namingAuthorityUrl = DerIA5String.GetInstance(o).GetString();
+				}
+				else if (o is IAsn1String)
+				{
+					namingAuthorityText = DirectoryString.GetInstance(o);
+				}
+				else
+				{
+					throw new ArgumentException("Bad object encountered: " + o.GetType().Name);
+				}
+			}
+
+			if (e.MoveNext())
+			{
+				Asn1Encodable o = (Asn1Encodable) e.Current;
+				if (o is DerIA5String)
+				{
+					namingAuthorityUrl = DerIA5String.GetInstance(o).GetString();
+				}
+				else if (o is IAsn1String)
+				{
+					namingAuthorityText = DirectoryString.GetInstance(o);
+				}
+				else
+				{
+					throw new ArgumentException("Bad object encountered: " + o.GetType().Name);
+				}
+			}
+
+			if (e.MoveNext())
+			{
+				Asn1Encodable o = (Asn1Encodable) e.Current;
+				if (o is IAsn1String)
+				{
+					namingAuthorityText = DirectoryString.GetInstance(o);
+				}
+				else
+				{
+					throw new ArgumentException("Bad object encountered: " + o.GetType().Name);
+				}
+			}
+		}
+
+		/**
+		* @return Returns the namingAuthorityID.
+		*/
+		public virtual DerObjectIdentifier NamingAuthorityID
+		{
+			get { return namingAuthorityID; }
+		}
+
+		/**
+		* @return Returns the namingAuthorityText.
+		*/
+		public virtual DirectoryString NamingAuthorityText
+		{
+			get { return namingAuthorityText; }
+		}
+
+		/**
+		* @return Returns the namingAuthorityUrl.
+		*/
+		public virtual string NamingAuthorityUrl
+		{
+			get { return namingAuthorityUrl; }
+		}
+
+		/**
+		* Constructor from given details.
+		* <p/>
+		* All parameters can be combined.
+		*
+		* @param namingAuthorityID   ObjectIdentifier for naming authority.
+		* @param namingAuthorityUrl  URL for naming authority.
+		* @param namingAuthorityText Textual representation of naming authority.
+		*/
+		public NamingAuthority(
+			DerObjectIdentifier	namingAuthorityID,
+			string				namingAuthorityUrl,
+			DirectoryString		namingAuthorityText)
+		{
+			this.namingAuthorityID = namingAuthorityID;
+			this.namingAuthorityUrl = namingAuthorityUrl;
+			this.namingAuthorityText = namingAuthorityText;
+		}
+
+		/**
+		* Produce an object suitable for an Asn1OutputStream.
+		* <p/>
+		* Returns:
+		* <p/>
+		* <pre>
+		*             NamingAuthority ::= SEQUENCE
+		*             {
+		*               namingAuthorityID OBJECT IDENTIFIER OPTIONAL,
+		*               namingAuthorityUrl IA5String OPTIONAL,
+		*               namingAuthorityText DirectoryString(SIZE(1..128)) OPTIONAL
+		*             }
+		* </pre>
+		*
+		* @return an Asn1Object
+		*/
+		public override Asn1Object ToAsn1Object()
+		{
+			Asn1EncodableVector vec = new Asn1EncodableVector();
+			if (namingAuthorityID != null)
+			{
+				vec.Add(namingAuthorityID);
+			}
+			if (namingAuthorityUrl != null)
+			{
+				vec.Add(new DerIA5String(namingAuthorityUrl, true));
+			}
+			if (namingAuthorityText != null)
+			{
+				vec.Add(namingAuthorityText);
+			}
+			return new DerSequence(vec);
+		}
+	}
+}