Source for gnu.javax.crypto.keyring.CertPathEntry

   1: /* CertPathEntry.java --
   2:    Copyright (C) 2003, 2006 Free Software Foundation, Inc.
   3: 
   4: This file is a part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2 of the License, or (at
   9: your option) any later version.
  10: 
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; if not, write to the Free Software
  18: Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
  19: USA
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
  33: or based on this library.  If you modify this library, you may extend
  34: this exception to your version of the library, but you are not
  35: obligated to do so.  If you do not wish to do so, delete this
  36: exception statement from your version.  */
  37: 
  38: 
  39: package gnu.javax.crypto.keyring;
  40: 
  41: import java.io.ByteArrayOutputStream;
  42: import java.io.DataInputStream;
  43: import java.io.IOException;
  44: import java.security.cert.Certificate;
  45: import java.security.cert.CertificateEncodingException;
  46: import java.security.cert.CertificateException;
  47: import java.security.cert.CertificateFactory;
  48: import java.util.Date;
  49: 
  50: /**
  51:  * A primitive entry that contains a path of X.509 certificates.
  52:  */
  53: public final class CertPathEntry
  54:     extends PrimitiveEntry
  55: {
  56:   public static final int TYPE = 8;
  57:   private Certificate[] path;
  58: 
  59:   public CertPathEntry(Certificate[] path, Date creationDate,
  60:                        Properties properties)
  61:   {
  62:     super(TYPE, creationDate, properties);
  63:     if (path == null || path.length == 0)
  64:       throw new IllegalArgumentException("no certificate path");
  65:     this.path = (Certificate[]) path.clone();
  66:   }
  67: 
  68:   private CertPathEntry()
  69:   {
  70:     super(TYPE);
  71:   }
  72: 
  73:   public static CertPathEntry decode(DataInputStream in) throws IOException
  74:   {
  75:     CertPathEntry entry = new CertPathEntry();
  76:     entry.properties.decode(in);
  77:     entry.makeCreationDate();
  78:     int len = in.readInt();
  79:     MeteredInputStream in2 = new MeteredInputStream(in, len);
  80:     try
  81:       {
  82:         CertificateFactory fact = CertificateFactory.getInstance("X.509");
  83:         entry.path = (Certificate[]) fact.generateCertificates(in2).toArray(new Certificate[0]);
  84:       }
  85:     catch (CertificateException ce)
  86:       {
  87:         throw new MalformedKeyringException(ce.toString());
  88:       }
  89:     return entry;
  90:   }
  91: 
  92:   public Certificate[] getCertPath()
  93:   {
  94:     return path;
  95:   }
  96: 
  97:   protected void encodePayload() throws IOException
  98:   {
  99:     ByteArrayOutputStream bout = new ByteArrayOutputStream(1024);
 100:     byte[] enc = null;
 101:     try
 102:       {
 103:         for (int i = 0; i < path.length; i++)
 104:           bout.write(path[i].getEncoded());
 105:       }
 106:     catch (CertificateEncodingException cee)
 107:       {
 108:         throw new IOException(cee.toString());
 109:       }
 110:     payload = bout.toByteArray();
 111:   }
 112: }