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using System;
using System.Collections;
using Org.BouncyCastle.Utilities;
namespace Org.BouncyCastle.Asn1.X509
{
public class NameConstraints
: Asn1Encodable
{
private Asn1Sequence permitted, excluded;
public static NameConstraints GetInstance(
object obj)
{
if (obj == null || obj is NameConstraints)
{
return (NameConstraints) obj;
}
if (obj is Asn1Sequence)
{
return new NameConstraints((Asn1Sequence) obj);
}
throw new ArgumentException("unknown object in factory: " + Platform.GetTypeName(obj), "obj");
}
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;
}
}
}
#if !(SILVERLIGHT || PORTABLE)
public NameConstraints(
ArrayList permitted,
ArrayList excluded)
: this((IList)permitted, (IList)excluded)
{
}
#endif
/**
* 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(
IList permitted,
IList excluded)
{
if (permitted != null)
{
this.permitted = CreateSequence(permitted);
}
if (excluded != null)
{
this.excluded = CreateSequence(excluded);
}
}
private DerSequence CreateSequence(
IList subtrees)
{
GeneralSubtree[] gsts = new GeneralSubtree[subtrees.Count];
for (int i = 0; i < subtrees.Count; ++i)
{
gsts[i] = (GeneralSubtree)subtrees[i];
}
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);
}
}
}
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