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// --- 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.util.Enumeration;
import java.util.Vector;
import netscape.security.util.DerOutputStream;
import netscape.security.util.DerValue;
/**
* Represent the CRLReason Extension of CRL entry.
*
* <p>
* This extension, if present, defines the identifies the reason for the certificate revocation.
*
* @author galperin
* @version $Revision$, $Date$
* @see Extension
* @see CertAttrSet
*/
public final class CRLReasonExtension extends Extension implements CertAttrSet {
/**
*
*/
private static final long serialVersionUID = 4544973296866779535L;
/**
* Canned instances for all revocation reasons
*/
public static final CRLReasonExtension UNSPECIFIED = new CRLReasonExtension(RevocationReason.UNSPECIFIED);
public static final CRLReasonExtension KEY_COMPROMISE = new CRLReasonExtension(RevocationReason.KEY_COMPROMISE);
public static final CRLReasonExtension CA_COMPROMISE = new CRLReasonExtension(RevocationReason.CA_COMPROMISE);
public static final CRLReasonExtension AFFILIATION_CHANGED = new CRLReasonExtension(
RevocationReason.AFFILIATION_CHANGED);
public static final CRLReasonExtension SUPERSEDED = new CRLReasonExtension(RevocationReason.SUPERSEDED);
public static final CRLReasonExtension CESSATION_OF_OPERATION = new CRLReasonExtension(
RevocationReason.CESSATION_OF_OPERATION);
public static final CRLReasonExtension CERTIFICATE_HOLD = new CRLReasonExtension(RevocationReason.CERTIFICATE_HOLD);
public static final CRLReasonExtension REMOVE_FROM_CRL = new CRLReasonExtension(RevocationReason.REMOVE_FROM_CRL);
public static final CRLReasonExtension PRIVILEGE_WITHDRAWN = new CRLReasonExtension(
RevocationReason.PRIVILEGE_WITHDRAWN);
public static final CRLReasonExtension AA_COMPROMISE = new CRLReasonExtension(RevocationReason.AA_COMPROMISE);
/**
* Attribute names.
*/
public static final String NAME = "CRLReason";
public static final String REASON = "value";
private RevocationReason mReason = null;
public RevocationReason getReason() {
return mReason;
}
/**
* Default constructor
*
*/
public CRLReasonExtension() {
this.extensionId = PKIXExtensions.ReasonCode_Id;
this.critical = false;
mReason = null;
}
/**
* Create extension value for specific revocation reason
*
*/
public CRLReasonExtension(RevocationReason reason) {
this.extensionId = PKIXExtensions.ReasonCode_Id;
this.critical = false;
mReason = reason;
}
public CRLReasonExtension(Boolean critical, RevocationReason reason)
throws IOException {
this.extensionId = PKIXExtensions.ReasonCode_Id;
this.critical = critical.booleanValue();
mReason = reason;
}
/**
* Create the object from the passed DER encoded value.
*
* @param derVal the DerValue decoded from the stream.
* @exception IOException on decoding errors.
*/
public CRLReasonExtension(Boolean critical, Object value)
throws IOException {
this.extensionId = PKIXExtensions.ReasonCode_Id;
this.critical = critical.booleanValue();
byte[] extValue = (byte[]) ((byte[]) value).clone();
this.extensionValue = extValue;
DerValue val = new DerValue(extValue);
int reasonCode = val.getEnumerated();
mReason = RevocationReason.fromInt(reasonCode);
if (mReason == null)
throw new IOException("Unknown revocation reason value " + reasonCode);
}
/**
* Set the attribute value.
*/
public void set(String name, Object obj) throws IOException {
if (!(obj instanceof RevocationReason)) {
throw new IOException("Attribute must be of type RevocationReason.");
}
if (name.equalsIgnoreCase(REASON)) {
mReason = (RevocationReason) obj;
} else {
throw new IOException("Name not recognized by CRLReason");
}
}
/**
* Get the attribute value.
*/
public Object get(String name) throws IOException {
if (name.equalsIgnoreCase(REASON)) {
return mReason;
} else {
throw new IOException("Name not recognized by CRLReason");
}
}
/**
* Delete the attribute value.
*/
public void delete(String name) throws IOException {
if (name.equalsIgnoreCase(REASON)) {
mReason = null;
} else {
throw new IOException("Name not recognized by CRLReason");
}
}
/**
* Returns a printable representation of the ReasonFlags.
*/
public String toString() {
String s = super.toString() + "CRL Reason [" + mReason + "]\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.");
}
// Encode this extension value
private void encodeThis() throws IOException {
if (mReason == null)
throw new IOException("Unintialized CRLReason extension");
DerOutputStream os = new DerOutputStream();
os.putEnumerated(mReason.toInt());
this.extensionValue = os.toByteArray();
}
/**
* Write the extension to the DerOutputStream.
*
* @param out the OutputStream 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) {
encodeThis();
}
super.encode(tmp);
out.write(tmp.toByteArray());
}
/**
* Return an enumeration of names of attributes existing within this
* attribute.
*/
public Enumeration<String> getAttributeNames() {
Vector<String> elements = new Vector<String>();
elements.addElement(REASON);
return (elements.elements());
}
/**
* Return the name of this attribute.
*/
public String getName() {
return (NAME);
}
public boolean equals(Object other) {
if (this == other)
return true;
else if (other instanceof CRLReasonExtension)
return ((CRLReasonExtension) other).mReason == mReason &&
((CRLReasonExtension) other).critical == critical;
else
return false;
}
}
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