001 /**
002 *
003 * Licensed to the Apache Software Foundation (ASF) under one or more
004 * contributor license agreements. See the NOTICE file distributed with
005 * this work for additional information regarding copyright ownership.
006 * The ASF licenses this file to You under the Apache License, Version 2.0
007 * (the "License"); you may not use this file except in compliance with
008 * the License. You may obtain a copy of the License at
009 *
010 * http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018
019 package org.apache.geronimo.util.asn1.x509;
020
021 import java.util.Enumeration;
022 import java.util.Vector;
023
024 import org.apache.geronimo.util.asn1.ASN1Encodable;
025 import org.apache.geronimo.util.asn1.ASN1EncodableVector;
026 import org.apache.geronimo.util.asn1.ASN1OctetString;
027 import org.apache.geronimo.util.asn1.ASN1Sequence;
028 import org.apache.geronimo.util.asn1.ASN1TaggedObject;
029 import org.apache.geronimo.util.asn1.DERObject;
030 import org.apache.geronimo.util.asn1.DERObjectIdentifier;
031 import org.apache.geronimo.util.asn1.DEROctetString;
032 import org.apache.geronimo.util.asn1.DERSequence;
033 import org.apache.geronimo.util.asn1.DERTaggedObject;
034 import org.apache.geronimo.util.asn1.DERUTF8String;
035
036 /**
037 * Implementation of <code>IetfAttrSyntax</code> as specified by RFC3281.
038 */
039 public class IetfAttrSyntax
040 extends ASN1Encodable
041 {
042 public static final int VALUE_OCTETS = 1;
043 public static final int VALUE_OID = 2;
044 public static final int VALUE_UTF8 = 3;
045 GeneralNames policyAuthority = null;
046 Vector values = new Vector();
047 int valueChoice = -1;
048
049 /**
050 *
051 */
052 public IetfAttrSyntax(ASN1Sequence seq)
053 {
054 int i = 0;
055
056 if (seq.getObjectAt(0) instanceof ASN1TaggedObject)
057 {
058 policyAuthority = GeneralNames.getInstance(((ASN1TaggedObject)seq.getObjectAt(0)), false);
059 i++;
060 }
061 else if (seq.size() == 2)
062 { // VOMS fix
063 policyAuthority = GeneralNames.getInstance(seq.getObjectAt(0));
064 i++;
065 }
066
067 if (!(seq.getObjectAt(i) instanceof ASN1Sequence))
068 {
069 throw new IllegalArgumentException("Non-IetfAttrSyntax encoding");
070 }
071
072 seq = (ASN1Sequence)seq.getObjectAt(i);
073
074 for (Enumeration e = seq.getObjects(); e.hasMoreElements();)
075 {
076 DERObject obj = (DERObject)e.nextElement();
077 int type;
078
079 if (obj instanceof DERObjectIdentifier)
080 {
081 type = VALUE_OID;
082 }
083 else if (obj instanceof DERUTF8String)
084 {
085 type = VALUE_UTF8;
086 }
087 else if (obj instanceof DEROctetString)
088 {
089 type = VALUE_OCTETS;
090 }
091 else
092 {
093 throw new IllegalArgumentException("Bad value type encoding IetfAttrSyntax");
094 }
095
096 if (valueChoice < 0)
097 {
098 valueChoice = type;
099 }
100
101 if (type != valueChoice)
102 {
103 throw new IllegalArgumentException("Mix of value types in IetfAttrSyntax");
104 }
105
106 values.addElement(obj);
107 }
108 }
109
110 public GeneralNames getPolicyAuthority()
111 {
112 return policyAuthority;
113 }
114
115 public int getValueType()
116 {
117 return valueChoice;
118 }
119
120 public Object[] getValues()
121 {
122 if (this.getValueType() == VALUE_OCTETS)
123 {
124 ASN1OctetString[] tmp = new ASN1OctetString[values.size()];
125
126 for (int i = 0; i != tmp.length; i++)
127 {
128 tmp[i] = (ASN1OctetString)values.elementAt(i);
129 }
130
131 return tmp;
132 }
133 else if (this.getValueType() == VALUE_OID)
134 {
135 DERObjectIdentifier[] tmp = new DERObjectIdentifier[values.size()];
136
137 for (int i = 0; i != tmp.length; i++)
138 {
139 tmp[i] = (DERObjectIdentifier)values.elementAt(i);
140 }
141
142 return tmp;
143 }
144 else
145 {
146 DERUTF8String[] tmp = new DERUTF8String[values.size()];
147
148 for (int i = 0; i != tmp.length; i++)
149 {
150 tmp[i] = (DERUTF8String)values.elementAt(i);
151 }
152
153 return tmp;
154 }
155 }
156
157 /**
158 *
159 * <pre>
160 *
161 * IetfAttrSyntax ::= SEQUENCE {
162 * policyAuthority [0] GeneralNames OPTIONAL,
163 * values SEQUENCE OF CHOICE {
164 * octets OCTET STRING,
165 * oid OBJECT IDENTIFIER,
166 * string UTF8String
167 * }
168 * }
169 *
170 * </pre>
171 */
172 public DERObject toASN1Object()
173 {
174 ASN1EncodableVector v = new ASN1EncodableVector();
175
176 if (policyAuthority != null)
177 {
178 v.add(new DERTaggedObject(0, policyAuthority));
179 }
180
181 ASN1EncodableVector v2 = new ASN1EncodableVector();
182
183 for (Enumeration i = values.elements(); i.hasMoreElements();)
184 {
185 v2.add((ASN1Encodable)i.nextElement());
186 }
187
188 v.add(new DERSequence(v2));
189
190 return new DERSequence(v);
191 }
192 }