/*
* Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* 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
* by Oracle in the LICENSE file that accompanied this code.
*
* 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).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
package sun.security.x509;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Date;
import java.util.Enumeration;
import sun.security.util.*;
/**
* From RFC 3280:
* <p>
* The invalidity date is a non-critical CRL entry extension that
* provides the date on which it is known or suspected that the private
* key was compromised or that the certificate otherwise became invalid.
* This date may be earlier than the revocation date in the CRL entry,
* which is the date at which the CA processed the revocation. When a
* revocation is first posted by a CRL issuer in a CRL, the invalidity
* date may precede the date of issue of earlier CRLs, but the
* revocation date SHOULD NOT precede the date of issue of earlier CRLs.
* Whenever this information is available, CRL issuers are strongly
* encouraged to share it with CRL users.
* <p>
* The GeneralizedTime values included in this field MUST be expressed
* in Greenwich Mean Time (Zulu), and MUST be specified and interpreted
* as defined in section 4.1.2.5.2.
* <pre>
* id-ce-invalidityDate OBJECT IDENTIFIER ::= { id-ce 24 }
*
* invalidityDate ::= GeneralizedTime
* </pre>
*
* @author Sean Mullan
*/
public class InvalidityDateExtension extends Extension
implements CertAttrSet<String> {
/**
* Attribute name and Reason codes
*/
public static final String NAME = "InvalidityDate";
public static final String DATE = "date";
private Date date;
private void encodeThis() throws IOException {
if (date == null) {
this.extensionValue = null;
return;
}
DerOutputStream dos = new DerOutputStream();
dos.putGeneralizedTime(date);
this.extensionValue = dos.toByteArray();
}
/**
* Create a InvalidityDateExtension with the passed in date.
* Criticality automatically set to false.
*
* @param date the invalidity date
*/
public InvalidityDateExtension(Date date) throws IOException {
this(false, date);
}
/**
* Create a InvalidityDateExtension with the passed in date.
*
* @param critical true if the extension is to be treated as critical.
* @param date the invalidity date
*/
public InvalidityDateExtension(boolean critical, Date date)
throws IOException {
this.extensionId = PKIXExtensions.InvalidityDate_Id;
this.critical = critical;
this.date = date;
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 InvalidityDateExtension(Boolean critical, Object value)
throws IOException {
this.extensionId = PKIXExtensions.InvalidityDate_Id;
this.critical = critical.booleanValue();
this.extensionValue = (byte[]) value;
DerValue val = new DerValue(this.extensionValue);
this.date = val.getGeneralizedTime();
}
/**
* Set the attribute value.
*/
public void set(String name, Object obj) throws IOException {
if (!(obj instanceof Date)) {
throw new IOException("Attribute must be of type Date.");
}
if (name.equalsIgnoreCase(DATE)) {
date = (Date) obj;
} else {
throw new IOException
("Name not supported by InvalidityDateExtension");
}
encodeThis();
}
/**
* Get the attribute value.
*/
public Date get(String name) throws IOException {
if (name.equalsIgnoreCase(DATE)) {
if (date == null) {
return null;
} else {
return (new Date(date.getTime())); // clone
}
} else {
throw new IOException
("Name not supported by InvalidityDateExtension");
}
}
/**
* Delete the attribute value.
*/
public void delete(String name) throws IOException {
if (name.equalsIgnoreCase(DATE)) {
date = null;
} else {
throw new IOException
("Name not supported by InvalidityDateExtension");
}
encodeThis();
}
/**
* Returns a printable representation of the Invalidity Date.
*/
public String toString() {
return super.toString() + " Invalidity Date: " + String.valueOf(date);
}
/**
* 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.InvalidityDate_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(DATE);
return elements.elements();
}
/**
* Return the name of this attribute.
*/
public String getName() {
return NAME;
}
public static InvalidityDateExtension toImpl(java.security.cert.Extension ext)
throws IOException {
if (ext instanceof InvalidityDateExtension) {
return (InvalidityDateExtension) ext;
} else {
return new InvalidityDateExtension
(Boolean.valueOf(ext.isCritical()), ext.getValue());
}
}
}