--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/sun/security/x509/CRLNumberExtension.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,236 @@
+/*
+ * Copyright 1997-2006 Sun Microsystems, Inc. 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. Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package sun.security.x509;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.math.BigInteger;
+import java.util.Enumeration;
+
+import sun.security.util.*;
+
+/**
+ * Represent the CRL Number Extension.
+ *
+ * <p>This extension, if present, conveys a monotonically increasing
+ * sequence number for each CRL issued by a given CA through a specific
+ * CA X.500 Directory entry or CRL distribution point. This extension
+ * allows users to easily determine when a particular CRL supersedes
+ * another CRL.
+ *
+ * @author Hemma Prafullchandra
+ * @see Extension
+ * @see CertAttrSet
+ */
+public class CRLNumberExtension extends Extension
+implements CertAttrSet<String> {
+
+ /**
+ * Attribute name.
+ */
+ public static final String NAME = "CRLNumber";
+ public static final String NUMBER = "value";
+
+ private static final String LABEL = "CRL Number";
+
+ private BigInteger crlNumber = null;
+ private String extensionName;
+ private String extensionLabel;
+
+ // Encode this extension value
+ private void encodeThis() throws IOException {
+ if (crlNumber == null) {
+ this.extensionValue = null;
+ return;
+ }
+ DerOutputStream os = new DerOutputStream();
+ os.putInteger(this.crlNumber);
+ this.extensionValue = os.toByteArray();
+ }
+
+ /**
+ * Create a CRLNumberExtension with the integer value .
+ * The criticality is set to false.
+ *
+ * @param crlNum the value to be set for the extension.
+ */
+ public CRLNumberExtension(int crlNum) throws IOException {
+ this(PKIXExtensions.CRLNumber_Id, false, BigInteger.valueOf(crlNum),
+ NAME, LABEL);
+ }
+
+ /**
+ * Create a CRLNumberExtension with the BigInteger value .
+ * The criticality is set to false.
+ *
+ * @param crlNum the value to be set for the extension.
+ */
+ public CRLNumberExtension(BigInteger crlNum) throws IOException {
+ this(PKIXExtensions.CRLNumber_Id, false, crlNum, NAME, LABEL);
+ }
+
+ /**
+ * Creates the extension (also called by the subclass).
+ */
+ protected CRLNumberExtension(ObjectIdentifier extensionId,
+ boolean isCritical, BigInteger crlNum, String extensionName,
+ String extensionLabel) throws IOException {
+
+ this.extensionId = extensionId;
+ this.critical = isCritical;
+ this.crlNumber = crlNum;
+ this.extensionName = extensionName;
+ this.extensionLabel = extensionLabel;
+ 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 CRLNumberExtension(Boolean critical, Object value)
+ throws IOException {
+ this(PKIXExtensions.CRLNumber_Id, critical, value, NAME, LABEL);
+ }
+
+ /**
+ * Creates the extension (also called by the subclass).
+ */
+ protected CRLNumberExtension(ObjectIdentifier extensionId,
+ Boolean critical, Object value, String extensionName,
+ String extensionLabel) throws IOException {
+
+ this.extensionId = extensionId;
+ this.critical = critical.booleanValue();
+ this.extensionValue = (byte[]) value;
+ DerValue val = new DerValue(this.extensionValue);
+ this.crlNumber = val.getBigInteger();
+ this.extensionName = extensionName;
+ this.extensionLabel = extensionLabel;
+ }
+
+ /**
+ * 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.");
+ }
+ crlNumber = (BigInteger)obj;
+ } else {
+ throw new IOException("Attribute name not recognized by"
+ + " CertAttrSet:" + extensionName + ".");
+ }
+ encodeThis();
+ }
+
+ /**
+ * Get the attribute value.
+ */
+ public Object get(String name) throws IOException {
+ if (name.equalsIgnoreCase(NUMBER)) {
+ if (crlNumber == null) return null;
+ else return crlNumber;
+ } else {
+ throw new IOException("Attribute name not recognized by"
+ + " CertAttrSet:" + extensionName + ".");
+ }
+ }
+
+ /**
+ * Delete the attribute value.
+ */
+ public void delete(String name) throws IOException {
+ if (name.equalsIgnoreCase(NUMBER)) {
+ crlNumber = null;
+ } else {
+ throw new IOException("Attribute name not recognized by"
+ + " CertAttrSet:" + extensionName + ".");
+ }
+ encodeThis();
+ }
+
+ /**
+ * Returns a printable representation of the CRLNumberExtension.
+ */
+ public String toString() {
+ String s = super.toString() + extensionLabel + ": " +
+ ((crlNumber == null) ? "" : Debug.toHexString(crlNumber))
+ + "\n";
+ 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();
+ encode(out, PKIXExtensions.CRLNumber_Id, true);
+ }
+
+ /**
+ * Write the extension to the DerOutputStream.
+ * (Also called by the subclass)
+ */
+ protected void encode(OutputStream out, ObjectIdentifier extensionId,
+ boolean isCritical) throws IOException {
+
+ DerOutputStream tmp = new DerOutputStream();
+
+ if (this.extensionValue == null) {
+ this.extensionId = extensionId;
+ this.critical = isCritical;
+ 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(NUMBER);
+ return (elements.elements());
+ }
+
+ /**
+ * Return the name of this attribute.
+ */
+ public String getName() {
+ return (extensionName);
+ }
+}