// --- BEGIN COPYRIGHT BLOCK --- // This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; version 2 of the License. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License along // with this program; if not, write to the Free Software Foundation, Inc., // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. // // (C) 2007 Red Hat, Inc. // All rights reserved. // --- END COPYRIGHT BLOCK --- package netscape.security.x509; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.lang.reflect.Array; import java.math.BigInteger; import java.security.cert.CertificateException; import java.util.Enumeration; import java.util.Vector; import netscape.security.util.BigInt; import netscape.security.util.DerOutputStream; import netscape.security.util.DerValue; /** * Represent the Delta CRL Indicator Extension. * *
* The delta CRL indicator is a critical CRL extension that identifies a delta-CRL. The value of BaseCRLNumber
* identifies the CRL number of the base CRL that was used as the starting point in the generation of this delta- CRL.
* The delta-CRL contains the changes between the base CRL and the current CRL issued along with the delta-CRL.
*
* @see Extension
* @see CertAttrSet
*/
public class DeltaCRLIndicatorExtension extends Extension
implements CertAttrSet {
/**
*
*/
private static final long serialVersionUID = 7182919216525364676L;
/**
* Attribute name.
*/
public static final String NAME = "DeltaCRLIndicator";
public static final String NUMBER = "value";
/**
* The Object Identifier for this extension.
*/
public static final String OID = "2.5.29.27";
private BigInt baseCRLNumber = null;
static {
try {
OIDMap.addAttribute(DeltaCRLIndicatorExtension.class.getName(),
OID, NAME);
} catch (CertificateException e) {
}
}
// Encode this extension value
private void encodeThis() throws IOException {
if (baseCRLNumber == null)
throw new IOException("Unintialized delta CRL indicator extension");
DerOutputStream os = new DerOutputStream();
os.putInteger(this.baseCRLNumber);
this.extensionValue = os.toByteArray();
}
/**
* Create a DeltaCRLIndicatorExtension with the integer value.
* The criticality is set to true.
*
* @param baseCRLNum the value to be set for the extension.
*/
public DeltaCRLIndicatorExtension(int baseCRLNum) throws IOException {
this.baseCRLNumber = new BigInt(baseCRLNum);
this.extensionId = PKIXExtensions.DeltaCRLIndicator_Id;
this.critical = true;
encodeThis();
}
/**
* Create a DeltaCRLIndicatorExtension with the BigInteger value.
* The criticality is set to true.
*
* @param baseCRLNum the value to be set for the extension.
*/
public DeltaCRLIndicatorExtension(BigInteger baseCRLNum) throws IOException {
this.baseCRLNumber = new BigInt(baseCRLNum);
this.extensionId = PKIXExtensions.DeltaCRLIndicator_Id;
this.critical = true;
encodeThis();
}
/**
* Create a DeltaCRLIndicatorExtension with the BigInteger value.
*
* @param critical true if the extension is to be treated as critical.
* @param baseCRLNum the value to be set for the extension.
*/
public DeltaCRLIndicatorExtension(Boolean critical, BigInteger baseCRLNum)
throws IOException {
this.baseCRLNumber = new BigInt(baseCRLNum);
this.extensionId = PKIXExtensions.DeltaCRLIndicator_Id;
this.critical = critical.booleanValue();
encodeThis();
}
/**
* Create the extension from the passed DER encoded value of the same.
*
* @param critical true if the extension is to be treated as critical.
* @param value Array of DER encoded bytes of the actual value.
* @exception IOException on error.
*/
public DeltaCRLIndicatorExtension(Boolean critical, Object value)
throws IOException {
this.extensionId = PKIXExtensions.DeltaCRLIndicator_Id;
this.critical = critical.booleanValue();
int len = Array.getLength(value);
byte[] extValue = new byte[len];
for (int i = 0; i < len; i++) {
extValue[i] = Array.getByte(value, i);
}
this.extensionValue = extValue;
DerValue val = new DerValue(extValue);
this.baseCRLNumber = val.getInteger();
}
/**
* Set the attribute value.
*/
public void set(String name, Object obj) throws IOException {
if (name.equalsIgnoreCase(NUMBER)) {
if (!(obj instanceof BigInteger)) {
throw new IOException("Attribute must be of type BigInteger.");
}
baseCRLNumber = new BigInt((BigInteger) obj);
} else {
throw new IOException("Attribute name not recognized by" +
" CertAttrSet:DeltaCRLIndicator.");
}
}
/**
* Get the attribute value.
*/
public Object get(String name) throws IOException {
if (name.equalsIgnoreCase(NUMBER)) {
if (baseCRLNumber == null)
return null;
else
return baseCRLNumber.toBigInteger();
} else {
throw new IOException("Attribute name not recognized by" +
" CertAttrSet:DeltaCRLIndicator.");
}
}
/**
* Delete the attribute value.
*/
public void delete(String name) throws IOException {
if (name.equalsIgnoreCase(NUMBER)) {
baseCRLNumber = null;
} else {
throw new IOException("Attribute name not recognized by" +
" CertAttrSet:DeltaCRLIndicator.");
}
}
/**
* Returns a printable representation of the DeltaCRLIndicatorExtension.
*/
public String toString() {
String s = super.toString() + "Delta CRL Indicator: " +
((baseCRLNumber == null) ? "" : baseCRLNumber.toString())
+ "\n";
return (s);
}
/**
* Decode the extension from the InputStream.
*
* @param in the InputStream to unmarshal the contents from.
* @exception IOException on decoding or validity errors.
*/
public void decode(InputStream in) throws IOException {
throw new IOException("Method not to be called directly.");
}
/**
* Write the extension to the DerOutputStream.
*
* @param out the DerOutputStream to write the extension to.
* @exception IOException on encoding errors.
*/
public void encode(OutputStream out) throws IOException {
DerOutputStream tmp = new DerOutputStream();
if (this.extensionValue == null) {
this.extensionId = PKIXExtensions.DeltaCRLIndicator_Id;
this.critical = true;
encodeThis();
}
super.encode(tmp);
out.write(tmp.toByteArray());
}
/**
* Return an enumeration of names of attributes existing within this
* attribute.
*/
public Enumeration