package org.bouncycastle.asn1.x509;
import java.util.Enumeration;
import java.util.Vector;
import org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ASN1TaggedObject;
import org.bouncycastle.asn1.DERObject;
import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.asn1.DERTaggedObject;
public class NameConstraints
extends ASN1Encodable
{
private ASN1Sequence permitted, excluded;
public NameConstraints(ASN1Sequence seq)
{
Enumeration e = seq.getObjects();
while (e.hasMoreElements())
{
ASN1TaggedObject o = ASN1TaggedObject.getInstance(e.nextElement());
switch (o.getTagNo())
{
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.
*
* @param permitted
* Permitted subtrees
* @param excluded
* Excludes subtrees
*/
public NameConstraints(
Vector permitted,
Vector excluded)
{
if (permitted != null)
{
this.permitted = createSequence(permitted);
}
if (excluded != null)
{
this.excluded = createSequence(excluded);
}
}
private DERSequence createSequence(Vector subtree)
{
ASN1EncodableVector vec = new ASN1EncodableVector();
Enumeration e = subtree.elements();
while (e.hasMoreElements())
{
vec.add((GeneralSubtree)e.nextElement());
}
return new DERSequence(vec);
}
public ASN1Sequence getPermittedSubtrees()
{
return permitted;
}
public ASN1Sequence getExcludedSubtrees()
{
return excluded;
}
/*
* NameConstraints ::= SEQUENCE { permittedSubtrees [0] GeneralSubtrees
* OPTIONAL, excludedSubtrees [1] GeneralSubtrees OPTIONAL }
*/
public DERObject 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);
}
}