| 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); |
| } |
| } |