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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
* �Recht, Wirtschaft, Steuern� (�Law, Economy, Taxes�) 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);
}
}
}
|
