Source for gnu.javax.net.ssl.provider.CertificateRequest

   1: /* CertificateRequest.java -- SSL CertificateRequest message.
   2:    Copyright (C) 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.net.ssl.provider;
  40: 
  41: import java.io.PrintWriter;
  42: import java.io.StringWriter;
  43: 
  44: import java.nio.ByteBuffer;
  45: import java.nio.ByteOrder;
  46: 
  47: /**
  48:  * A request by the server for a client certificate.
  49:  *
  50:  * <pre>
  51: struct
  52: {
  53:   ClientCertificateType certificate_types&lt;1..2^8-1&gt;;
  54:   DistinguishedName certificate_authorities&lt;3..2^16-1&gt;;
  55: } CertificateRequest;
  56: </pre>
  57:  */
  58: public class CertificateRequest implements Handshake.Body
  59: {
  60: 
  61:   // Fields.
  62:   // -------------------------------------------------------------------------
  63: 
  64:   protected ByteBuffer buffer;
  65: 
  66:   // Constructor.
  67:   // -------------------------------------------------------------------------
  68: 
  69:   public CertificateRequest(final ByteBuffer buffer)
  70:   {
  71:     this.buffer = buffer.duplicate().order(ByteOrder.BIG_ENDIAN);
  72:   }
  73: 
  74:   // Instance methods.
  75:   // -------------------------------------------------------------------------
  76: 
  77:   public int length ()
  78:   {
  79:     int o1 = (buffer.get (0) & 0xFF) + 1;
  80:     return o1 + (buffer.getShort (o1) & 0xFFFF) + 2;
  81:   }
  82: 
  83:   public ClientCertificateTypeList types ()
  84:   {
  85:     return new ClientCertificateTypeList(buffer.duplicate());
  86:   }
  87: 
  88:   public X500PrincipalList authorities ()
  89:   {
  90:     int offset = (buffer.get (0) & 0xFF) + 1;
  91:     return new X500PrincipalList (((ByteBuffer) buffer.position(offset)).slice());
  92:   }
  93: 
  94:   public String toString()
  95:   {
  96:     return toString (null);
  97:   }
  98: 
  99:   public String toString (final String prefix)
 100:   {
 101:     StringWriter str = new StringWriter();
 102:     PrintWriter out = new PrintWriter(str);
 103:     String subprefix = "  ";
 104:     if (prefix != null) subprefix = prefix + "  ";
 105:     if (prefix != null) out.print (prefix);
 106:     out.println("struct {");
 107:     if (prefix != null) out.print (prefix);
 108:     out.println ("  types =");
 109:     out.println (types ().toString (subprefix));
 110:     if (prefix != null) out.print (prefix);
 111:     out.println("  authorities =");
 112:     out.println (authorities ().toString (subprefix));
 113:     if (prefix != null) out.print (prefix);
 114:     out.print ("} CertificateRequest;");
 115:     return str.toString();
 116:   }
 117: 
 118:   public static enum ClientCertificateType
 119:   {
 120:     RSA_SIGN     (1),
 121:     DSS_SIGN     (2),
 122:     RSA_FIXED_DH (3),
 123:     DSS_FIXED_DH (4);
 124: 
 125:     private final int value;
 126: 
 127:     // Constructor.
 128:     // -----------------------------------------------------------------------
 129: 
 130:     private ClientCertificateType (final int value)
 131:     {
 132:       this.value = value;
 133:     }
 134: 
 135:     // Class method.
 136:     // -----------------------------------------------------------------------
 137: 
 138:     static ClientCertificateType forValue (final int value)
 139:     {
 140:       switch (value)
 141:         {
 142:         case 1: return RSA_SIGN;
 143:         case 2: return DSS_SIGN;
 144:         case 3: return RSA_FIXED_DH;
 145:         case 4: return DSS_FIXED_DH;
 146:         default: throw new IllegalArgumentException("unknown client certificate type: " + value);
 147:         }
 148:     }
 149: 
 150:     public int getValue()
 151:     {
 152:       return value;
 153:     }
 154:   }
 155: }