gomp-20050608-branch/libjava/classpath/gnu/java/security/x509/ext/GeneralNames.java

   1 /* GeneralNames.java -- the GeneralNames object
   2    Copyright (C) 2004  Free Software Foundation, Inc.
   3
   4 This file is 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, or (at your option)
   9 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; see the file COPYING.  If not, write to the
  18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19 02110-1301 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.java.security.x509.ext;
  40
  41 import gnu.java.security.OID;
  42 import gnu.java.security.der.DER;
  43 import gnu.java.security.der.DERReader;
  44 import gnu.java.security.der.DERValue;
  45 import gnu.java.security.x509.X500DistinguishedName;
  46
  47 import java.io.IOException;
  48 import java.net.InetAddress;
  49 import java.util.ArrayList;
  50 import java.util.Collections;
  51 import java.util.Iterator;
  52 import java.util.LinkedList;
  53 import java.util.List;
  54
  55 public class GeneralNames
  56 {
  57
  58   // Instance methods.
  59   // -------------------------------------------------------------------------
  60
  61   public static final int OTHER_NAME     = 0;
  62   public static final int RFC822_NAME    = 1;
  63   public static final int DNS_NAME       = 2;
  64   public static final int X400_ADDRESS   = 3;
  65   public static final int DIRECTORY_NAME = 4;
  66   public static final int EDI_PARTY_NAME = 5;
  67   public static final int URI            = 6;
  68   public static final int IP_ADDRESS     = 7;
  69   public static final int REGISTERED_ID  = 8;
  70
  71   private List names;
  72
  73   // Constructor.
  74   // -------------------------------------------------------------------------
  75
  76   public GeneralNames(final byte[] encoded) throws IOException
  77   {
  78     names = new LinkedList();
  79     DERReader der = new DERReader(encoded);
  80     DERValue nameList = der.read();
  81     if (!nameList.isConstructed())
  82       throw new IOException("malformed GeneralNames");
  83     int len = 0;
  84     while (len < nameList.getLength())
  85       {
  86         DERValue name = der.read();
  87         List namePair = new ArrayList(2);
  88         if (name.getTagClass() != DER.APPLICATION)
  89           throw new IOException("malformed GeneralName");
  90         namePair.add(new Integer(name.getTag()));
  91         DERValue val = null;
  92         switch (name.getTag())
  93           {
  94           case RFC822_NAME:
  95           case DNS_NAME:
  96           case X400_ADDRESS:
  97           case URI:
  98             namePair.add(new String((byte[]) name.getValue()));
  99             break;
 100
 101           case OTHER_NAME:
 102           case EDI_PARTY_NAME:
 103             namePair.add(name.getValue());
 104             break;
 105
 106           case DIRECTORY_NAME:
 107             byte[] b = name.getEncoded();
 108             b[0] = (byte) (DER.CONSTRUCTED|DER.SEQUENCE);
 109             namePair.add(new X500DistinguishedName(b).toString());
 110             break;
 111
 112           case IP_ADDRESS:
 113             namePair.add(InetAddress.getByAddress((byte[]) name.getValue())
 114                          .getHostAddress());
 115             break;
 116
 117           case REGISTERED_ID:
 118             byte[] bb = name.getEncoded();
 119             bb[0] = (byte) DER.OBJECT_IDENTIFIER;
 120             namePair.add(new OID(bb).toString());
 121             break;
 122
 123           default:
 124             throw new IOException("unknown tag " + name.getTag());
 125           }
 126         names.add(namePair);
 127         len += name.getEncodedLength();
 128       }
 129   }
 130
 131   // Instance methods.
 132   // -------------------------------------------------------------------------
 133
 134   public List getNames()
 135   {
 136     List l = new ArrayList(names.size());
 137     for (Iterator it = names.iterator(); it.hasNext(); )
 138       {
 139         List ll = (List) it.next();
 140         List pair = new ArrayList(2);
 141         pair.add(ll.get(0));
 142         if (ll.get(1) instanceof byte[])
 143           pair.add(((byte[]) ll.get(1)).clone());
 144         else
 145           pair.add(ll.get(1));
 146         l.add(Collections.unmodifiableList(pair));
 147       }
 148     return Collections.unmodifiableList(l);
 149   }
 150
 151   public String toString()
 152   {
 153     return GeneralNames.class.getName() + " [ " + names + " ]";
 154   }
 155 }