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- /* 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. It
- // should return false when it needs more data, or true when the security
- // handshaking is over and we are now waiting for the SecurityResult message
- // from the server. In the event of failure a suitable exception should be
- // thrown.
- //
- // 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.
- //
- // description is a string describing the level of encryption applied to the
- // session, or null if no encryption will be used.
-
- #ifndef __RFB_CSECURITY_H__
- #define __RFB_CSECURITY_H__
-
- #include <rfb/UserPasswdGetter.h>
- #include <rfb/UserMsgBox.h>
-
- namespace rfb {
- class CConnection;
- class CSecurity {
- public:
- CSecurity(CConnection* cc_) : cc(cc_) {}
- virtual ~CSecurity() {}
- virtual bool processMsg() = 0;
- virtual int getType() const = 0;
- virtual bool isSecure() const { return false; }
-
- /*
- * Use variable directly instead of dumb get/set methods.
- * It MUST be set by viewer.
- */
- static UserPasswdGetter *upg;
- static UserMsgBox *msg;
-
- protected:
- CConnection* cc;
- };
- }
- #endif
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