author | jjg |
Mon, 15 Aug 2011 11:48:20 -0700 | |
changeset 10336 | 0bb1999251f8 |
parent 5506 | 202f599c92aa |
child 25522 | 10d789df41bb |
permissions | -rw-r--r-- |
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/* |
10336
0bb1999251f8
7064075: Security libraries don't build with javac -Xlint:all,-deprecation -Werror
jjg
parents:
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diff
changeset
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* Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package sun.security.x509; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.io.OutputStream; |
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import java.util.Enumeration; |
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import sun.security.util.*; |
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/** |
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* This class defines the version of the X509 Certificate. |
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* |
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* @author Amit Kapoor |
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* @author Hemma Prafullchandra |
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* @see CertAttrSet |
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*/ |
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public class CertificateVersion implements CertAttrSet<String> { |
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/** |
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* X509Certificate Version 1 |
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*/ |
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public static final int V1 = 0; |
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/** |
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* X509Certificate Version 2 |
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*/ |
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public static final int V2 = 1; |
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/** |
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* X509Certificate Version 3 |
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*/ |
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public static final int V3 = 2; |
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/** |
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* Identifier for this attribute, to be used with the |
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* get, set, delete methods of Certificate, x509 type. |
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*/ |
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public static final String IDENT = "x509.info.version"; |
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/** |
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* Sub attributes name for this CertAttrSet. |
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*/ |
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public static final String NAME = "version"; |
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public static final String VERSION = "number"; |
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// Private data members |
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int version = V1; |
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// Returns the version number. |
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private int getVersion() { |
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return(version); |
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} |
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// Construct the class from the passed DerValue |
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private void construct(DerValue derVal) throws IOException { |
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if (derVal.isConstructed() && derVal.isContextSpecific()) { |
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derVal = derVal.data.getDerValue(); |
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version = derVal.getInteger(); |
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if (derVal.data.available() != 0) { |
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throw new IOException("X.509 version, bad format"); |
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} |
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} |
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} |
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/** |
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* The default constructor for this class, |
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* sets the version to 0 (i.e. X.509 version 1). |
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*/ |
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public CertificateVersion() { |
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version = V1; |
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} |
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/** |
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* The constructor for this class for the required version. |
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* |
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* @param version the version for the certificate. |
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* @exception IOException if the version is not valid. |
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*/ |
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public CertificateVersion(int version) throws IOException { |
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// check that it is a valid version |
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if (version == V1 || version == V2 || version == V3) |
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this.version = version; |
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else { |
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throw new IOException("X.509 Certificate version " + |
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version + " not supported.\n"); |
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} |
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} |
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/** |
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* Create the object, decoding the values from the passed DER stream. |
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* |
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* @param in the DerInputStream to read the CertificateVersion from. |
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* @exception IOException on decoding errors. |
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*/ |
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public CertificateVersion(DerInputStream in) throws IOException { |
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version = V1; |
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DerValue derVal = in.getDerValue(); |
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construct(derVal); |
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} |
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/** |
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* Create the object, decoding the values from the passed stream. |
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* |
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* @param in the InputStream to read the CertificateVersion from. |
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* @exception IOException on decoding errors. |
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*/ |
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public CertificateVersion(InputStream in) throws IOException { |
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version = V1; |
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DerValue derVal = new DerValue(in); |
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construct(derVal); |
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} |
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/** |
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* Create the object, decoding the values from the passed DerValue. |
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* |
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* @param val the Der encoded value. |
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* @exception IOException on decoding errors. |
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*/ |
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public CertificateVersion(DerValue val) throws IOException { |
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version = V1; |
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construct(val); |
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} |
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/** |
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* Return the version number of the certificate. |
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*/ |
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public String toString() { |
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return("Version: V" + (version+1)); |
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} |
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/** |
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* Encode the CertificateVersion period in DER form to the stream. |
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* |
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* @param out the OutputStream to marshal the contents to. |
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* @exception IOException on errors. |
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*/ |
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public void encode(OutputStream out) throws IOException { |
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// Nothing for default |
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if (version == V1) { |
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return; |
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} |
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DerOutputStream tmp = new DerOutputStream(); |
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tmp.putInteger(version); |
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DerOutputStream seq = new DerOutputStream(); |
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seq.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0), |
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tmp); |
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out.write(seq.toByteArray()); |
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} |
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/** |
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* Set the attribute value. |
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*/ |
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public void set(String name, Object obj) throws IOException { |
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if (!(obj instanceof Integer)) { |
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throw new IOException("Attribute must be of type Integer."); |
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} |
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if (name.equalsIgnoreCase(VERSION)) { |
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version = ((Integer)obj).intValue(); |
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} else { |
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throw new IOException("Attribute name not recognized by " + |
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"CertAttrSet: CertificateVersion."); |
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} |
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} |
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/** |
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* Get the attribute value. |
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*/ |
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10336
0bb1999251f8
7064075: Security libraries don't build with javac -Xlint:all,-deprecation -Werror
jjg
parents:
5506
diff
changeset
|
194 |
public Integer get(String name) throws IOException { |
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if (name.equalsIgnoreCase(VERSION)) { |
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return(new Integer(getVersion())); |
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} else { |
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throw new IOException("Attribute name not recognized by " + |
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"CertAttrSet: CertificateVersion."); |
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} |
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} |
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/** |
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* Delete the attribute value. |
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*/ |
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public void delete(String name) throws IOException { |
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if (name.equalsIgnoreCase(VERSION)) { |
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version = V1; |
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} else { |
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throw new IOException("Attribute name not recognized by " + |
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"CertAttrSet: CertificateVersion."); |
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} |
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} |
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/** |
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* Return an enumeration of names of attributes existing within this |
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* attribute. |
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*/ |
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public Enumeration<String> getElements() { |
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AttributeNameEnumeration elements = new AttributeNameEnumeration(); |
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elements.addElement(VERSION); |
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return (elements.elements()); |
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} |
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/** |
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* Return the name of this attribute. |
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*/ |
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public String getName() { |
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return(NAME); |
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} |
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/** |
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* Compare versions. |
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*/ |
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public int compare(int vers) { |
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return(version - vers); |
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} |
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} |