diff options
Diffstat (limited to 'pki/base/util/src/netscape/security/x509/CRLNumberExtension.java')
-rwxr-xr-x | pki/base/util/src/netscape/security/x509/CRLNumberExtension.java | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/pki/base/util/src/netscape/security/x509/CRLNumberExtension.java b/pki/base/util/src/netscape/security/x509/CRLNumberExtension.java new file mode 100755 index 000000000..67cd98e55 --- /dev/null +++ b/pki/base/util/src/netscape/security/x509/CRLNumberExtension.java @@ -0,0 +1,218 @@ +// --- 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.util.Enumeration; + +import netscape.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 + * @version 1.2 + * @see Extension + * @see CertAttrSet + */ +public class CRLNumberExtension extends Extension +implements CertAttrSet { + + /** + * Attribute name. + */ + public static final String NAME = "CRLNumber"; + public static final String NUMBER = "value"; + + private BigInt crlNumber = null; + + // Encode this extension value + private void encodeThis() throws IOException { + if (crlNumber == null) + throw new IOException("Unintialized CRL number extension"); + 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.crlNumber = new BigInt(crlNum); + this.extensionId = PKIXExtensions.CRLNumber_Id; + this.critical = false; + encodeThis(); + } + + /** + * 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.crlNumber = new BigInt(crlNum); + this.extensionId = PKIXExtensions.CRLNumber_Id; + this.critical = false; + encodeThis(); + } + + /** + * Create a CRLNumberExtension with the BigInteger value . + * + * @param critical true if the extension is to be treated as critical. + * @param crlNum the value to be set for the extension. + */ + public CRLNumberExtension(Boolean critical, BigInteger crlNum) throws IOException { + this.crlNumber = new BigInt(crlNum); + this.extensionId = PKIXExtensions.CRLNumber_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 CRLNumberExtension(Boolean critical, Object value) + throws IOException { + this.extensionId = PKIXExtensions.CRLNumber_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.crlNumber = 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."); + } + crlNumber = new BigInt((BigInteger)obj); + } else { + throw new IOException("Attribute name not recognized by" + + " CertAttrSet:CRLNumber."); + } + } + + /** + * Get the attribute value. + */ + public Object get(String name) throws IOException { + if (name.equalsIgnoreCase(NUMBER)) { + if (crlNumber == null) return null; + else return crlNumber.toBigInteger(); + } else { + throw new IOException("Attribute name not recognized by" + + " CertAttrSet:CRLNumber."); + } + } + + /** + * 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:CRLNumber."); + } + } + + /** + * Returns a printable representation of the CRLNumberExtension. + */ + public String toString() { + String s = super.toString() + "CRL Number: " + + ((crlNumber == null) ? "" : crlNumber.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.CRLNumber_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 getElements () { + AttributeNameEnumeration elements = new AttributeNameEnumeration(); + elements.addElement(NUMBER); + return (elements.elements()); + } + + /** + * Return the name of this attribute. + */ + public String getName () { + return (NAME); + } +} |