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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
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*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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package sun.security.x509;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Enumeration;
import sun.security.util.*;
/**
* The reasonCode is a non-critical CRL entry extension that identifies
* the reason for the certificate revocation. CAs are strongly
* encouraged to include reason codes in CRL entries; however, the
* reason code CRL entry extension should be absent instead of using the
* unspecified (0) reasonCode value.
* <p>The ASN.1 syntax for this is:
* <pre>
* id-ce-cRLReason OBJECT IDENTIFIER ::= { id-ce 21 }
*
* -- reasonCode ::= { CRLReason }
*
* CRLReason ::= ENUMERATED {
* unspecified (0),
* keyCompromise (1),
* cACompromise (2),
* affiliationChanged (3),
* superseded (4),
* cessationOfOperation (5),
* certificateHold (6),
* removeFromCRL (8),
* privilegeWithdrawn (9),
* aACompromise (10) }
* </pre>
* @author Hemma Prafullchandra
* @see Extension
* @see CertAttrSet
*/
public class CRLReasonCodeExtension extends Extension
implements CertAttrSet<String> {
/**
* Attribute name and Reason codes
*/
public static final String NAME = "CRLReasonCode";
public static final String REASON = "reason";
public static final int UNSPECIFIED = 0;
public static final int KEY_COMPROMISE = 1;
public static final int CA_COMPROMISE = 2;
public static final int AFFLIATION_CHANGED = 3;
public static final int SUPERSEDED = 4;
public static final int CESSATION_OF_OPERATION = 5;
public static final int CERTIFICATE_HOLD = 6;
// note 7 missing in syntax
public static final int REMOVE_FROM_CRL = 8;
public static final int PRIVILEGE_WITHDRAWN = 9;
public static final int AA_COMPROMISE = 10;
private int reasonCode = 0;
private void encodeThis() throws IOException {
if (reasonCode == 0) {
this.extensionValue = null;
return;
}
DerOutputStream dos = new DerOutputStream();
dos.putEnumerated(reasonCode);
this.extensionValue = dos.toByteArray();
}
/**
* Create a CRLReasonCodeExtension with the passed in reason.
* Criticality automatically set to false.
*
* @param reason the enumerated value for the reason code.
*/
public CRLReasonCodeExtension(int reason) throws IOException {
this(false, reason);
}
/**
* Create a CRLReasonCodeExtension with the passed in reason.
*
* @param critical true if the extension is to be treated as critical.
* @param reason the enumerated value for the reason code.
*/
public CRLReasonCodeExtension(boolean critical, int reason)
throws IOException {
this.extensionId = PKIXExtensions.ReasonCode_Id;
this.critical = critical;
this.reasonCode = reason;
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 an array of DER encoded bytes of the actual value.
* @exception ClassCastException if value is not an array of bytes
* @exception IOException on error.
*/
public CRLReasonCodeExtension(Boolean critical, Object value)
throws IOException {
this.extensionId = PKIXExtensions.ReasonCode_Id;
this.critical = critical.booleanValue();
this.extensionValue = (byte[]) value;
DerValue val = new DerValue(this.extensionValue);
this.reasonCode = val.getEnumerated();
}
/**
* Set the attribute value.
*/
public void set(String name, Object obj) throws IOException {
if (!(obj instanceof Integer)) {
throw new IOException("Attribute must be of type Integer.");
}
if (name.equalsIgnoreCase(REASON)) {
reasonCode = ((Integer)obj).intValue();
} else {
throw new IOException
("Name not supported by CRLReasonCodeExtension");
}
encodeThis();
}
/**
* Get the attribute value.
*/
public Object get(String name) throws IOException {
if (name.equalsIgnoreCase(REASON)) {
return new Integer(reasonCode);
} else {
throw new IOException
("Name not supported by CRLReasonCodeExtension");
}
}
/**
* Delete the attribute value.
*/
public void delete(String name) throws IOException {
if (name.equalsIgnoreCase(REASON)) {
reasonCode = 0;
} else {
throw new IOException
("Name not supported by CRLReasonCodeExtension");
}
encodeThis();
}
/**
* Returns a printable representation of the Reason code.
*/
public String toString() {
String s = super.toString() + " Reason Code: ";
switch (reasonCode) {
case UNSPECIFIED: s += "Unspecified"; break;
case KEY_COMPROMISE: s += "Key Compromise"; break;
case CA_COMPROMISE: s += "CA Compromise"; break;
case AFFLIATION_CHANGED: s += "Affiliation Changed"; break;
case SUPERSEDED: s += "Superseded"; break;
case CESSATION_OF_OPERATION: s += "Cessation Of Operation"; break;
case CERTIFICATE_HOLD: s += "Certificate Hold"; break;
case REMOVE_FROM_CRL: s += "Remove from CRL"; break;
case PRIVILEGE_WITHDRAWN: s += "Privilege Withdrawn"; break;
case AA_COMPROMISE: s += "AA Compromise"; break;
default: s += "Unrecognized reason code (" + reasonCode + ")";
}
return (s);
}
/**
* 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.ReasonCode_Id;
this.critical = false;
encodeThis();
}
super.encode(tmp);
out.write(tmp.toByteArray());
}
/**
* Return an enumeration of names of attributes existing within this
* attribute.
*/
public Enumeration<String> getElements() {
AttributeNameEnumeration elements = new AttributeNameEnumeration();
elements.addElement(REASON);
return elements.elements();
}
/**
* Return the name of this attribute.
*/
public String getName() {
return NAME;
}
}