/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @author Vladimir N. Molotkov, Alexander Y. Kleymenov
* @version $Revision$
*/
/*
* Imported by CG 20090321 based on Apache Harmony ("enhanced") revision 490473.
*/
package org.apache.harmony.security.x509;
import java.io.IOException;
import java.math.BigInteger;
import org.apache.harmony.security.asn1.ASN1Implicit;
import org.apache.harmony.security.asn1.ASN1Integer;
import org.apache.harmony.security.asn1.ASN1Sequence;
import org.apache.harmony.security.asn1.ASN1Type;
import org.apache.harmony.security.asn1.BerInputStream;
/**
* The class encapsulates the ASN.1 DER encoding/decoding work
* with PolicyConstraints structure which is a part of X.509 certificate
* (as specified in RFC 3280 -
* Internet X.509 Public Key Infrastructure.
* Certificate and Certificate Revocation List (CRL) Profile.
* http://www.ietf.org/rfc/rfc3280.txt):
*
* <pre>
*
* PolicyConstraints ::= SEQUENCE {
* requireExplicitPolicy [0] SkipCerts OPTIONAL,
* inhibitPolicyMapping [1] SkipCerts OPTIONAL }
*
* SkipCerts ::= INTEGER (0..MAX)
*
* </pre>
*
* TODO: This class is not fully implemented.
*
* @see org.apache.harmony.security.x509.GeneralSubtree
* @see org.apache.harmony.security.x509.GeneralName
*/
public class PolicyConstraints extends ExtensionValue {
// the value of requireExplicitPolicy field of the structure
private final BigInteger requireExplicitPolicy;
// the value of inhibitPolicyMapping field of the structure
private final BigInteger inhibitPolicyMapping;
// the ASN.1 encoded form of PolicyConstraints;
private byte[] encoding;
/**
* TODO
*/
public PolicyConstraints() {
this(null, null);
}
/**
* TODO
* @param requireExplicitPolicy: GeneralSubtrees
* @param inhibitPolicyMapping: GeneralSubtrees
*/
public PolicyConstraints(BigInteger requireExplicitPolicy,
BigInteger inhibitPolicyMapping) {
this.requireExplicitPolicy = requireExplicitPolicy;
this.inhibitPolicyMapping = inhibitPolicyMapping;
}
/**
* TODO
* @param requireExplicitPolicy: GeneralSubtrees
* @param inhibitPolicyMapping: GeneralSubtrees
*/
public PolicyConstraints(int requireExplicitPolicy,
int inhibitPolicyMapping) {
this.requireExplicitPolicy = BigInteger.valueOf(requireExplicitPolicy);
this.inhibitPolicyMapping = BigInteger.valueOf(inhibitPolicyMapping);
}
public PolicyConstraints(byte[] encoding) throws IOException {
super(encoding);
PolicyConstraints pc = (PolicyConstraints) ASN1.decode(encoding);
this.requireExplicitPolicy = pc.requireExplicitPolicy;
this.inhibitPolicyMapping = pc.inhibitPolicyMapping;
}
//
// TODO
// @param requireExplicitPolicy: GeneralSubtrees
// @param inhibitPolicyMapping: GeneralSubtrees
// @param encoding: byte[]
//
private PolicyConstraints(BigInteger requireExplicitPolicy,
BigInteger inhibitPolicyMapping, byte[] encoding) {
this(requireExplicitPolicy, inhibitPolicyMapping);
this.encoding = encoding;
}
/**
* Returns ASN.1 encoded form of this X.509 PolicyConstraints value.
* @return a byte array containing ASN.1 encode form.
*/
public byte[] getEncoded() {
if (encoding == null) {
encoding = ASN1.encode(this);
}
return encoding;
}
/**
* Places the string representation of extension value
* into the StringBuffer object.
*/
public void dumpValue(StringBuffer buffer, String prefix) {
buffer.append(prefix).append("PolicyConstraints: [\n"); //$NON-NLS-1$
if (requireExplicitPolicy != null) {
buffer.append(prefix).append(" requireExplicitPolicy: ") //$NON-NLS-1$
.append(requireExplicitPolicy).append('\n');
}
if (inhibitPolicyMapping != null) {
buffer.append(prefix).append(" inhibitPolicyMapping: ") //$NON-NLS-1$
.append(inhibitPolicyMapping).append('\n');
}
buffer.append(prefix).append("]\n"); //$NON-NLS-1$
}
/**
* X.509 PolicyConstraints encoder/decoder.
*/
public static final ASN1Sequence ASN1 = new ASN1Sequence(new ASN1Type[] {
new ASN1Implicit(0, ASN1Integer.getInstance()),
new ASN1Implicit(1, ASN1Integer.getInstance()) }) {
{
setOptional(0);
setOptional(1);
}
protected Object getDecodedObject(BerInputStream in) {
Object[] values = (Object[]) in.content;
BigInteger requireExplicitPolicy = null;
BigInteger inhibitPolicyMapping = null;
if (values[0] != null) {
requireExplicitPolicy = new BigInteger((byte[]) values[0]);
}
if (values[1] != null) {
inhibitPolicyMapping = new BigInteger((byte[]) values[1]);
}
return new PolicyConstraints(
requireExplicitPolicy, inhibitPolicyMapping,
in.getEncoded());
}
protected void getValues(Object object, Object[] values) {
PolicyConstraints pc = (PolicyConstraints) object;
values[0] = pc.requireExplicitPolicy.toByteArray();
values[1] = pc.inhibitPolicyMapping.toByteArray();
}
};
}