| /* ClientPSKParameters.java -- |
| Copyright (C) 2006 Free Software Foundation, Inc. |
| |
| This file is a part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or (at |
| your option) any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 |
| USA |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package gnu.javax.net.ssl.provider; |
| |
| import java.io.PrintWriter; |
| import java.io.StringWriter; |
| import java.nio.ByteBuffer; |
| import java.nio.CharBuffer; |
| import java.nio.charset.Charset; |
| |
| /** |
| * <pre> |
| struct { |
| select (KeyExchangeAlgorithm) { |
| /* other cases for rsa, diffie_hellman, etc. */ |
| case psk: /* NEW */ |
| opaque psk_identity<0..2^16-1>; |
| } exchange_keys; |
| } ClientKeyExchange;</pre> |
| * |
| * @author Casey Marshall (csm@gnu.org) |
| */ |
| public class ClientPSKParameters extends ExchangeKeys implements Builder, Constructed |
| { |
| public ClientPSKParameters(ByteBuffer buffer) |
| { |
| super(buffer); |
| } |
| |
| public ClientPSKParameters(String identity) |
| { |
| super(null); |
| Charset utf8 = Charset.forName("UTF-8"); |
| ByteBuffer idBuf = utf8.encode(CharBuffer.wrap(identity)); |
| buffer = ByteBuffer.allocate(idBuf.remaining() + 2); |
| buffer.putShort((short) idBuf.remaining()); |
| buffer.put(idBuf); |
| buffer.rewind(); |
| } |
| |
| /* (non-Javadoc) |
| * @see gnu.javax.net.ssl.provider.Builder#buffer() |
| */ |
| public ByteBuffer buffer() |
| { |
| return (ByteBuffer) buffer.duplicate().rewind().limit(length()); |
| } |
| |
| /* (non-Javadoc) |
| * @see gnu.javax.net.ssl.provider.Constructed#length() |
| */ |
| public int length() |
| { |
| return (buffer.getShort(0) & 0xFFFF) + 2; |
| } |
| |
| public String identity() |
| { |
| Charset utf8 = Charset.forName("UTF-8"); |
| return utf8.decode((ByteBuffer) buffer.duplicate().position(2).limit(length())).toString(); |
| } |
| |
| public @Override String toString() |
| { |
| return toString(null); |
| } |
| |
| /* (non-Javadoc) |
| * @see gnu.javax.net.ssl.provider.Constructed#toString(java.lang.String) |
| */ |
| public String toString(String prefix) |
| { |
| StringWriter str = new StringWriter(); |
| PrintWriter out = new PrintWriter(str); |
| if (prefix != null) out.print(prefix); |
| out.println("struct {"); |
| if (prefix != null) out.print(prefix); |
| out.print(" identity = "); |
| out.print(identity()); |
| out.println(";"); |
| if (prefix != null) out.print(prefix); |
| out.print("} ClientPSKParameters;"); |
| return str.toString(); |
| } |
| } |