Source for gnu.java.security.x509.ext.GeneralNames

   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: }