001    /**
002     *  Licensed to the Apache Software Foundation (ASF) under one or more
003     *  contributor license agreements.  See the NOTICE file distributed with
004     *  this work for additional information regarding copyright ownership.
005     *  The ASF licenses this file to You under the Apache License, Version 2.0
006     *  (the "License"); you may not use this file except in compliance with
007     *  the License.  You may obtain a copy of the License at
008     *
009     *     http://www.apache.org/licenses/LICENSE-2.0
010     *
011     *  Unless required by applicable law or agreed to in writing, software
012     *  distributed under the License is distributed on an "AS IS" BASIS,
013     *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     *  See the License for the specific language governing permissions and
015     *  limitations under the License.
016     */
017    
018    
019    package org.apache.geronimo.util.asn1.x509;
020    
021    import org.apache.geronimo.util.asn1.ASN1Encodable;
022    import org.apache.geronimo.util.asn1.ASN1EncodableVector;
023    import org.apache.geronimo.util.asn1.ASN1Sequence;
024    import org.apache.geronimo.util.asn1.ASN1TaggedObject;
025    import org.apache.geronimo.util.asn1.DERBitString;
026    import org.apache.geronimo.util.asn1.DERObject;
027    import org.apache.geronimo.util.asn1.DERSequence;
028    
029    /**
030     * PKIX RFC-2459
031     *
032     * The X.509 v2 CRL syntax is as follows.  For signature calculation,
033     * the data that is to be signed is ASN.1 DER encoded.
034     *
035     * <pre>
036     * CertificateList  ::=  SEQUENCE  {
037     *      tbsCertList          TBSCertList,
038     *      signatureAlgorithm   AlgorithmIdentifier,
039     *      signatureValue       BIT STRING  }
040     * </pre>
041     */
042    public class CertificateList
043        extends ASN1Encodable
044    {
045        TBSCertList            tbsCertList;
046        AlgorithmIdentifier    sigAlgId;
047        DERBitString           sig;
048    
049        public static CertificateList getInstance(
050            ASN1TaggedObject obj,
051            boolean          explicit)
052        {
053            return getInstance(ASN1Sequence.getInstance(obj, explicit));
054        }
055    
056        public static CertificateList getInstance(
057            Object  obj)
058        {
059            if (obj instanceof CertificateList)
060            {
061                return (CertificateList)obj;
062            }
063            else if (obj instanceof ASN1Sequence)
064            {
065                return new CertificateList((ASN1Sequence)obj);
066            }
067    
068            throw new IllegalArgumentException("unknown object in factory");
069        }
070    
071        public CertificateList(
072            ASN1Sequence seq)
073        {
074            if (seq.size() == 3)
075            {
076                tbsCertList = TBSCertList.getInstance(seq.getObjectAt(0));
077                sigAlgId = AlgorithmIdentifier.getInstance(seq.getObjectAt(1));
078                sig = (DERBitString)seq.getObjectAt(2);
079            }
080            else
081            {
082                throw new IllegalArgumentException("sequence wrong size for CertificateList");
083            }
084        }
085    
086        public TBSCertList getTBSCertList()
087        {
088            return tbsCertList;
089        }
090    
091        public TBSCertList.CRLEntry[] getRevokedCertificates()
092        {
093            return tbsCertList.getRevokedCertificates();
094        }
095    
096        public AlgorithmIdentifier getSignatureAlgorithm()
097        {
098            return sigAlgId;
099        }
100    
101        public DERBitString getSignature()
102        {
103            return sig;
104        }
105    
106        public int getVersion()
107        {
108            return tbsCertList.getVersion();
109        }
110    
111        public X509Name getIssuer()
112        {
113            return tbsCertList.getIssuer();
114        }
115    
116        public Time getThisUpdate()
117        {
118            return tbsCertList.getThisUpdate();
119        }
120    
121        public Time getNextUpdate()
122        {
123            return tbsCertList.getNextUpdate();
124        }
125    
126        public DERObject toASN1Object()
127        {
128            ASN1EncodableVector v = new ASN1EncodableVector();
129    
130            v.add(tbsCertList);
131            v.add(sigAlgId);
132            v.add(sig);
133    
134            return new DERSequence(v);
135        }
136    }