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/*
* VncServerProtocol.h - header file for the VncServerProtocol class
*
* Copyright (c) 2017-2021 Tobias Junghans <tobydox@veyon.io>
*
* This file is part of Veyon - https://veyon.io
*
* This program 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 program 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 program (see COPYING); if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
#pragma once
#include "RfbVeyonAuth.h"
class QTcpSocket;
class VariantArrayMessage;
class VncServerClient;
// clazy:excludeall=copyable-polymorphic
class VEYON_CORE_EXPORT VncServerProtocol
{
public:
enum State {
Disconnected,
Protocol,
SecurityInit,
AuthenticationTypes,
Authenticating,
AccessControl,
FramebufferInit,
Running,
Close,
StateCount
} ;
VncServerProtocol( QTcpSocket* socket,
VncServerClient* client );
virtual ~VncServerProtocol() = default;
State state() const;
void start();
bool read(); // Flawfinder: ignore
void setServerInitMessage( const QByteArray& serverInitMessage )
{
m_serverInitMessage = serverInitMessage;
}
protected:
virtual QVector<RfbVeyonAuth::Type> supportedAuthTypes() const = 0;
virtual void processAuthenticationMessage( VariantArrayMessage& message ) = 0;
virtual void performAccessControl() = 0;
QTcpSocket* socket()
{
return m_socket;
}
VncServerClient* client()
{
return m_client;
}
private:
void setState( State state );
bool readProtocol();
bool sendSecurityTypes();
bool receiveSecurityTypeResponse();
bool sendAuthenticationTypes();
bool receiveAuthenticationTypeResponse();
bool receiveAuthenticationMessage();
bool processAuthentication( VariantArrayMessage& message );
bool processAccessControl();
bool processFramebufferInit();
private:
QTcpSocket* m_socket;
VncServerClient* m_client;
QByteArray m_serverInitMessage;
} ;
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