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

   1: /* ClientRSA_PSKParameters.java -- 
   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 gnu.classpath.debug.Component;
  42: import gnu.classpath.debug.SystemLogger;
  43: 
  44: import java.io.PrintWriter;
  45: import java.io.StringWriter;
  46: import java.nio.ByteBuffer;
  47: import java.nio.ByteOrder;
  48: import java.nio.charset.Charset;
  49: 
  50: /**
  51:  * @author Casey Marshall (csm@gnu.org)
  52:  */
  53: public class ClientRSA_PSKParameters extends ExchangeKeys implements Builder, Constructed
  54: {
  55:   public ClientRSA_PSKParameters(ByteBuffer buffer)
  56:   {
  57:     super(buffer);
  58:   }
  59: 
  60:   public ClientRSA_PSKParameters(String identity, ByteBuffer epms)
  61:   {
  62:     super(null);
  63:     Charset utf8 = Charset.forName("UTF-8");
  64:     ByteBuffer idBuf = utf8.encode(identity);
  65:     buffer = ByteBuffer.allocate(2 + idBuf.remaining() + epms.remaining());
  66:     buffer.putShort((short) idBuf.remaining());
  67:     buffer.put(idBuf);
  68:     buffer.put(epms);
  69:     buffer.rewind();
  70:   }
  71: 
  72:   /* (non-Javadoc)
  73:    * @see gnu.javax.net.ssl.provider.Builder#buffer()
  74:    */
  75:   public ByteBuffer buffer()
  76:   {
  77:     return (ByteBuffer) buffer.duplicate().rewind().limit(length());
  78:   }
  79:   
  80:   public String identity()
  81:   {
  82:     Charset utf8 = Charset.forName("UTF-8");
  83:     return utf8.decode((ByteBuffer) buffer.duplicate().position(2).limit
  84:                        (identityLength())).toString();
  85:   }
  86:   
  87:   private int identityLength()
  88:   {
  89:     return (buffer.getShort(0) & 0xFFFF) + 2;
  90:   }
  91: 
  92:   /* (non-Javadoc)
  93:    * @see gnu.javax.net.ssl.provider.Constructed#length()
  94:    */
  95:   public int length()
  96:   {
  97:     return identityLength() + secret().length();
  98:   }
  99:   
 100:   public EncryptedPreMasterSecret secret()
 101:   {
 102:     return new EncryptedPreMasterSecret
 103:       (((ByteBuffer) buffer.duplicate().position(identityLength())
 104:         .limit(buffer.capacity())).slice(), ProtocolVersion.TLS_1);
 105:   }
 106: 
 107:   /* (non-Javadoc)
 108:    * @see gnu.javax.net.ssl.provider.Constructed#toString(java.lang.String)
 109:    */
 110:   public String toString(String prefix)
 111:   {
 112:     StringWriter str = new StringWriter();
 113:     PrintWriter out = new PrintWriter(str);
 114:     if (prefix != null) out.print(prefix);
 115:     out.println("struct {");
 116:     if (prefix != null) out.print(prefix);
 117:     out.print("  identity = ");
 118:     out.print(identity());
 119:     if (prefix != null) out.print(prefix);
 120:     out.println("  encrypted_pre_master_secret =");
 121:     out.println(secret().toString(prefix != null ? prefix + "    " : "    "));
 122:     if (prefix != null) out.print(prefix);
 123:     out.print("} ClientRSA_PSKParameters;");
 124:     return str.toString();
 125:   }
 126: }