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jeremybenn |
/* Certificate.java -- SSL certificate message.
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Copyright (C) 2006 Free Software Foundation, Inc.
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This file is a part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at
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your option) any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
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USA
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.javax.net.ssl.provider;
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import java.io.ByteArrayInputStream;
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import java.io.PrintWriter;
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import java.io.StringWriter;
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import java.nio.ByteBuffer;
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import java.nio.ByteOrder;
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import java.security.NoSuchAlgorithmException;
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import java.security.cert.CertificateException;
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import java.security.cert.CertificateFactory;
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import java.security.cert.X509Certificate;
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import java.util.Iterator;
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import java.util.LinkedList;
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import java.util.List;
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/**
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* The certificate object. This is used by both the client and the server
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* to send their certificates (if any) to one another.
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*
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* <pre>opaque ASN.1Cert<1..2^24-1>;
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struct {
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ASN.1Cert certificate_list<0..2^24-1>;
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} Certificate;</pre>
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*
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* @author Casey Marshall (csm@gnu.org)
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*/
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public class Certificate implements Handshake.Body
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{
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// Fields.
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// -------------------------------------------------------------------------
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protected ByteBuffer buffer;
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protected final CertificateType type;
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// Constructors.
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// -------------------------------------------------------------------------
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public Certificate (final ByteBuffer buffer, final CertificateType type)
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{
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buffer.getClass ();
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type.getClass ();
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this.buffer = buffer.duplicate().order(ByteOrder.BIG_ENDIAN);
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this.type = type;
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}
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// Instance methods.
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// -------------------------------------------------------------------------
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public int length ()
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{
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return (((buffer.get (0) & 0xFF) << 24)
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| buffer.getShort (1)) + 3;
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}
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public List<java.security.cert.Certificate> certificates ()
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throws CertificateException, NoSuchAlgorithmException
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{
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LinkedList<java.security.cert.Certificate> list
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= new LinkedList<java.security.cert.Certificate>();
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CertificateFactory factory = CertificateFactory.getInstance(type.toString());
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int length = (((buffer.get(0) & 0xFF) << 16)
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| (buffer.getShort(1) & 0xFFFF));
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ByteBuffer b = (ByteBuffer) buffer.duplicate().position(3);
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for (int i = 3; i < length; )
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{
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int length2 = (((b.get () & 0xFF) << 16)
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| (b.getShort () & 0xFFFF));
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byte[] buf = new byte[length2];
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b.position(i+3);
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b.get (buf);
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list.add(factory.generateCertificate (new ByteArrayInputStream (buf)));
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i += length2 + 3;
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b.position(i);
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}
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return list;
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}
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public String toString ()
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{
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return toString (null);
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}
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public String toString (final String prefix)
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{
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StringWriter str = new StringWriter();
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PrintWriter out = new PrintWriter(str);
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if (prefix != null)
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out.print (prefix);
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out.println ("struct {");
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try
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{
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List certs = certificates ();
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if (prefix != null)
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out.print (prefix);
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out.print (" certificateList: [");
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out.print (certs.size ());
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out.println ("] {");
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for (Iterator it = certs.iterator (); it.hasNext (); )
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{
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java.security.cert.Certificate cert =
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(java.security.cert.Certificate) it.next ();
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if (prefix != null)
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out.print (prefix);
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out.print (" ");
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if (cert instanceof X509Certificate)
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out.print (((X509Certificate) cert).getSubjectDN ());
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else
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out.print (cert);
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out.println (";");
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}
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if (prefix != null)
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out.print (prefix);
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out.println (" };");
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}
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catch (CertificateException ce)
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{
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if (prefix != null)
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out.print (prefix);
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out.print (" ");
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out.print (ce);
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out.println (";");
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}
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catch (NoSuchAlgorithmException nsae)
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{
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if (prefix != null)
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out.print (prefix);
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out.print (" ");
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out.print (nsae);
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out.println (";");
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}
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out.print ("} Certificate;");
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return str.toString();
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}
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}
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