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/*
* Copyright (C) 2003 Sun Microsystems, Inc.
* Copyright (C) 2003-2010 Martin Koegler
*
* This 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.
*
* This software 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 this software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
package com.tigervnc.vncviewer;
import java.util.ArrayList;
import java.net.*;
import javax.net.ssl.*;
public abstract class TLSTunnelBase
{
public TLSTunnelBase (Socket sock_)
{
sock = sock_;
}
protected void initContext (SSLContext sc) throws java.security.
GeneralSecurityException
{
sc.init (null, null, null);
}
public void setup (RfbProto cc) throws Exception
{
if (cc.readU8 () == 0)
throw new Exception("Setup on the server failed");
try
{
SSLSocketFactory sslfactory;
SSLSocket sslsock;
SSLContext sc = SSLContext.getInstance ("TLS");
System.out.println("Generating TLS context");
initContext (sc);
System.out.println("Doing TLS handshake");
sslfactory = sc.getSocketFactory ();
sslsock = (SSLSocket) sslfactory.createSocket (sock,
sock.getInetAddress ().
getHostName (),
sock.getPort (), true);
setParam (sslsock);
/* Not neccessary - just ensures that we know what cipher
* suite we are using for the output of toString()
*/
sslsock.startHandshake ();
System.out.println("TLS done");
cc.setStreams (sslsock.getInputStream (),
sslsock.getOutputStream ());
}
catch (java.io.IOException e)
{
throw new Exception("TLS handshake failed " + e.toString ());
}
catch (java.security.GeneralSecurityException e)
{
throw new Exception("TLS handshake failed " + e.toString ());
}
}
protected abstract void setParam (SSLSocket sock);
Socket sock;
}
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