| /* |
| * Copyright (c) 2003, 2006, 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 |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package sun.security.x509; |
| |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.util.Enumeration; |
| |
| import sun.security.util.DerValue; |
| import sun.security.util.DerOutputStream; |
| |
| /** |
| * Represents the CRL Certificate Issuer Extension (OID = 2.5.29.29). |
| * <p> |
| * The CRL certificate issuer extension identifies the certificate issuer |
| * associated with an entry in an indirect CRL, i.e. a CRL that has the |
| * indirectCRL indicator set in its issuing distribution point extension. If |
| * this extension is not present on the first entry in an indirect CRL, the |
| * certificate issuer defaults to the CRL issuer. On subsequent entries |
| * in an indirect CRL, if this extension is not present, the certificate |
| * issuer for the entry is the same as that for the preceding entry. |
| * <p> |
| * If used by conforming CRL issuers, this extension is always |
| * critical. If an implementation ignored this extension it could not |
| * correctly attribute CRL entries to certificates. PKIX (RFC 3280) |
| * RECOMMENDS that implementations recognize this extension. |
| * <p> |
| * The ASN.1 definition for this is: |
| * <pre> |
| * id-ce-certificateIssuer OBJECT IDENTIFIER ::= { id-ce 29 } |
| * |
| * certificateIssuer ::= GeneralNames |
| * </pre> |
| * |
| * @author Anne Anderson |
| * @author Sean Mullan |
| * @since 1.5 |
| * @see Extension |
| * @see CertAttrSet |
| */ |
| public class CertificateIssuerExtension extends Extension |
| implements CertAttrSet<String> { |
| |
| /** |
| * Attribute names. |
| */ |
| public static final String NAME = "CertificateIssuer"; |
| public static final String ISSUER = "issuer"; |
| |
| private GeneralNames names; |
| |
| /** |
| * Encode this extension |
| */ |
| private void encodeThis() throws IOException { |
| if (names == null || names.isEmpty()) { |
| this.extensionValue = null; |
| return; |
| } |
| DerOutputStream os = new DerOutputStream(); |
| names.encode(os); |
| this.extensionValue = os.toByteArray(); |
| } |
| |
| /** |
| * Create a CertificateIssuerExtension containing the specified issuer name. |
| * Criticality is automatically set to true. |
| * |
| * @param issuer the certificate issuer |
| * @throws IOException on error |
| */ |
| public CertificateIssuerExtension(GeneralNames issuer) throws IOException { |
| this.extensionId = PKIXExtensions.CertificateIssuer_Id; |
| this.critical = true; |
| this.names = issuer; |
| encodeThis(); |
| } |
| |
| /** |
| * Create a CertificateIssuerExtension from the specified 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 |
| * @throws ClassCastException if value is not an array of bytes |
| * @throws IOException on error |
| */ |
| public CertificateIssuerExtension(Boolean critical, Object value) |
| throws IOException { |
| this.extensionId = PKIXExtensions.CertificateIssuer_Id; |
| this.critical = critical.booleanValue(); |
| |
| this.extensionValue = (byte[]) value; |
| DerValue val = new DerValue(this.extensionValue); |
| this.names = new GeneralNames(val); |
| } |
| |
| /** |
| * Set the attribute value. |
| * |
| * @throws IOException on error |
| */ |
| public void set(String name, Object obj) throws IOException { |
| if (name.equalsIgnoreCase(ISSUER)) { |
| if (!(obj instanceof GeneralNames)) { |
| throw new IOException("Attribute value must be of type " + |
| "GeneralNames"); |
| } |
| this.names = (GeneralNames)obj; |
| } else { |
| throw new IOException("Attribute name not recognized by " + |
| "CertAttrSet:CertificateIssuer"); |
| } |
| encodeThis(); |
| } |
| |
| /** |
| * Gets the attribute value. |
| * |
| * @throws IOException on error |
| */ |
| public Object get(String name) throws IOException { |
| if (name.equalsIgnoreCase(ISSUER)) { |
| return names; |
| } else { |
| throw new IOException("Attribute name not recognized by " + |
| "CertAttrSet:CertificateIssuer"); |
| } |
| } |
| |
| /** |
| * Deletes the attribute value. |
| * |
| * @throws IOException on error |
| */ |
| public void delete(String name) throws IOException { |
| if (name.equalsIgnoreCase(ISSUER)) { |
| names = null; |
| } else { |
| throw new IOException("Attribute name not recognized by " + |
| "CertAttrSet:CertificateIssuer"); |
| } |
| encodeThis(); |
| } |
| |
| /** |
| * Returns a printable representation of the certificate issuer. |
| */ |
| public String toString() { |
| return super.toString() + "Certificate Issuer [\n" + |
| String.valueOf(names) + "]\n"; |
| } |
| |
| /** |
| * Write the extension to the OutputStream. |
| * |
| * @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 (extensionValue == null) { |
| extensionId = PKIXExtensions.CertificateIssuer_Id; |
| critical = true; |
| 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(ISSUER); |
| return elements.elements(); |
| } |
| |
| /** |
| * Return the name of this attribute. |
| */ |
| public String getName() { |
| return NAME; |
| } |
| } |