/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved. * * 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. */ // // CSecurity - class on the client side for handling security handshaking. A // derived class for a particular security type overrides the processMsg() // method. processMsg() is called first when the security type has been // decided on, and will keep being called whenever there is data to read from // the server until either it returns 0, indicating authentication/security // failure, or it returns 1, to indicate success. A return value of 2 // (actually anything other than 0 or 1) indicates that it should be called // back when there is more data to read. // // Note that the first time processMsg() is called, there is no guarantee that // there is any data to read from the CConnection's InStream, but subsequent // calls guarantee there is at least one byte which can be read without // blocking. package com.iiordanov.tigervnc.rfb; abstract public class CSecurity { abstract public boolean processMsg(CConnection cc); abstract public int getType(); abstract public String description(); /* * Use variable directly instead of dumb get/set methods. * It MUST be set by viewer. */ static UserPasswdGetter upg; }