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