/* * Copyright (c) 1997, 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.*;/** * This represents the Subject Alternative Name Extension. * * This extension, if present, allows the subject to specify multiple * alternative names. * * <p>Extensions are represented as a sequence of the extension identifier * (Object Identifier), a boolean flag stating whether the extension is to * be treated as being critical and the extension value itself (this is again * a DER encoding of the extension value). * <p> * The ASN.1 syntax for this is: * <pre> * SubjectAltName ::= GeneralNames * GeneralNames ::= SEQUENCE SIZE (1..MAX) OF GeneralName * </pre> * @author Amit Kapoor * @author Hemma Prafullchandra * @see Extension * @see CertAttrSet */public class SubjectAlternativeNameExtension extends Extensionimplements CertAttrSet<String> { /** * Identifier for this attribute, to be used with the * get, set, delete methods of Certificate, x509 type. */ public static final String IDENT = "x509.info.extensions.SubjectAlternativeName"; /** * Attribute names. */ public static final String NAME = "SubjectAlternativeName"; public static final String SUBJECT_NAME = "subject_name"; // private data members GeneralNames names = null; // 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 SubjectAlternativeNameExtension with the passed GeneralNames. * The extension is marked non-critical. * * @param names the GeneralNames for the subject. * @exception IOException on error. */ public SubjectAlternativeNameExtension(GeneralNames names) throws IOException { this(Boolean.FALSE, names); } /** * Create a SubjectAlternativeNameExtension with the specified * criticality and GeneralNames. * * @param critical true if the extension is to be treated as critical. * @param names the GeneralNames for the subject. * @exception IOException on error. */ public SubjectAlternativeNameExtension(Boolean critical, GeneralNames names) throws IOException { this.names = names; this.extensionId = PKIXExtensions.SubjectAlternativeName_Id; this.critical = critical.booleanValue(); encodeThis(); } /** * Create a default SubjectAlternativeNameExtension. The extension * is marked non-critical. */ public SubjectAlternativeNameExtension() { extensionId = PKIXExtensions.SubjectAlternativeName_Id; critical = false; names = new GeneralNames(); } /** * Create the extension from the passed DER encoded value. * * @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 SubjectAlternativeNameExtension(Boolean critical, Object value) throws IOException { this.extensionId = PKIXExtensions.SubjectAlternativeName_Id; this.critical = critical.booleanValue(); this.extensionValue = (byte[]) value; DerValue val = new DerValue(this.extensionValue); if (val.data == null) { names = new GeneralNames(); return; } names = new GeneralNames(val); } /** * Returns a printable representation of the SubjectAlternativeName. */ public String toString() { String result = super.toString() + "SubjectAlternativeName [\n"; if(names == null) { result += " null\n"; } else { for(GeneralName name: names.names()) { result += " "+name+"\n"; } } result += "]\n"; return result; } /** * 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.SubjectAlternativeName_Id; critical = false; encodeThis(); } super.encode(tmp); out.write(tmp.toByteArray()); } /** * Set the attribute value. */ public void set(String name, Object obj) throws IOException { if (name.equalsIgnoreCase(SUBJECT_NAME)) { if (!(obj instanceof GeneralNames)) { throw new IOException("Attribute value should be of " + "type GeneralNames."); } names = (GeneralNames)obj; } else { throw new IOException("Attribute name not recognized by " + "CertAttrSet:SubjectAlternativeName."); } encodeThis(); } /** * Get the attribute value. */ public Object get(String name) throws IOException { if (name.equalsIgnoreCase(SUBJECT_NAME)) { return (names); } else { throw new IOException("Attribute name not recognized by " + "CertAttrSet:SubjectAlternativeName."); } } /** * Delete the attribute value. */ public void delete(String name) throws IOException { if (name.equalsIgnoreCase(SUBJECT_NAME)) { names = null; } else { throw new IOException("Attribute name not recognized by " + "CertAttrSet:SubjectAlternativeName."); } encodeThis(); } /** * Return an enumeration of names of attributes existing within this * attribute. */ public Enumeration<String> getElements() { AttributeNameEnumeration elements = new AttributeNameEnumeration(); elements.addElement(SUBJECT_NAME); return (elements.elements()); } /** * Return the name of this attribute. */ public String getName() { return (NAME); }}
/*
* Copyright (c) 1997, 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.*;
/**
* This represents the Subject Alternative Name Extension.
*
* This extension, if present, allows the subject to specify multiple
* alternative names.
*
* <p>Extensions are represented as a sequence of the extension identifier
* (Object Identifier), a boolean flag stating whether the extension is to
* be treated as being critical and the extension value itself (this is again
* a DER encoding of the extension value).
* <p>
* The ASN.1 syntax for this is:
* <pre>
* SubjectAltName ::= GeneralNames
* GeneralNames ::= SEQUENCE SIZE (1..MAX) OF GeneralName
* </pre>
* @author Amit Kapoor
* @author Hemma Prafullchandra
* @see Extension
* @see CertAttrSet
*/
public class SubjectAlternativeNameExtension extends Extension
implements CertAttrSet<String> {
/**
* Identifier for this attribute, to be used with the
* get, set, delete methods of Certificate, x509 type.
*/
public static final String IDENT =
"x509.info.extensions.SubjectAlternativeName";
/**
* Attribute names.
*/
public static final String NAME = "SubjectAlternativeName";
public static final String SUBJECT_NAME = "subject_name";
// private data members
GeneralNames names = null;
// 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 SubjectAlternativeNameExtension with the passed GeneralNames.
* The extension is marked non-critical.
*
* @param names the GeneralNames for the subject.
* @exception IOException on error.
*/
public SubjectAlternativeNameExtension(GeneralNames names)
throws IOException {
this(Boolean.FALSE, names);
}
/**
* Create a SubjectAlternativeNameExtension with the specified
* criticality and GeneralNames.
*
* @param critical true if the extension is to be treated as critical.
* @param names the GeneralNames for the subject.
* @exception IOException on error.
*/
public SubjectAlternativeNameExtension(Boolean critical, GeneralNames names)
throws IOException {
this.names = names;
this.extensionId = PKIXExtensions.SubjectAlternativeName_Id;
this.critical = critical.booleanValue();
encodeThis();
}
/**
* Create a default SubjectAlternativeNameExtension. The extension
* is marked non-critical.
*/
public SubjectAlternativeNameExtension() {
extensionId = PKIXExtensions.SubjectAlternativeName_Id;
critical = false;
names = new GeneralNames();
}
/**
* Create the extension from the passed DER encoded value.
*
* @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 SubjectAlternativeNameExtension(Boolean critical, Object value)
throws IOException {
this.extensionId = PKIXExtensions.SubjectAlternativeName_Id;
this.critical = critical.booleanValue();
this.extensionValue = (byte[]) value;
DerValue val = new DerValue(this.extensionValue);
if (val.data == null) {
names = new GeneralNames();
return;
}
names = new GeneralNames(val);
}
/**
* Returns a printable representation of the SubjectAlternativeName.
*/
public String toString() {
String result = super.toString() + "SubjectAlternativeName [\n";
if(names == null) {
result += " null\n";
} else {
for(GeneralName name: names.names()) {
result += " "+name+"\n";
}
}
result += "]\n";
return result;
}
/**
* 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.SubjectAlternativeName_Id;
critical = false;
encodeThis();
}
super.encode(tmp);
out.write(tmp.toByteArray());
}
/**
* Set the attribute value.
*/
public void set(String name, Object obj) throws IOException {
if (name.equalsIgnoreCase(SUBJECT_NAME)) {
if (!(obj instanceof GeneralNames)) {
throw new IOException("Attribute value should be of " +
"type GeneralNames.");
}
names = (GeneralNames)obj;
} else {
throw new IOException("Attribute name not recognized by " +
"CertAttrSet:SubjectAlternativeName.");
}
encodeThis();
}
/**
* Get the attribute value.
*/
public Object get(String name) throws IOException {
if (name.equalsIgnoreCase(SUBJECT_NAME)) {
return (names);
} else {
throw new IOException("Attribute name not recognized by " +
"CertAttrSet:SubjectAlternativeName.");
}
}
/**
* Delete the attribute value.
*/
public void delete(String name) throws IOException {
if (name.equalsIgnoreCase(SUBJECT_NAME)) {
names = null;
} else {
throw new IOException("Attribute name not recognized by " +
"CertAttrSet:SubjectAlternativeName.");
}
encodeThis();
}
/**
* Return an enumeration of names of attributes existing within this
* attribute.
*/
public Enumeration<String> getElements() {
AttributeNameEnumeration elements = new AttributeNameEnumeration();
elements.addElement(SUBJECT_NAME);
return (elements.elements());
}
/**
* Return the name of this attribute.
*/
public String getName() {
return (NAME);
}
}