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#ifndef _KVI_IRCCONNECTIONTARGETRESOLVER_H_
#define _KVI_IRCCONNECTIONTARGETRESOLVER_H_
//=============================================================================
//
// File : kvi_ircconnectiontargetresolver.h
// Created on Fri 11 May 2004 23:17:42 by Szymon Stefanek
//
// This file is part of the KVIrc IRC client distribution
// Copyright (C) 2004 Szymon Stefanek <pragma at kvirc dot net>
//
// 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 opinion) 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. If not, write to the Free Software Foundation,
// Inc. ,51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
//=============================================================================
#include "kvi_settings.h"
#include "kvi_qstring.h"
#include <tqobject.h>
class KviConsole;
class KviDns;
class KviIrcConnection;
class KviIrcConnectionTarget;
class TQTimer;
class KVIRC_API KviIrcConnectionTargetResolver : public TQObject
{
friend class KviIrcLink; // upper protocol in the stack
Q_OBJECT
TQ_OBJECT
protected:
KviIrcConnectionTargetResolver(KviIrcConnection * pConnection);
~KviIrcConnectionTargetResolver();
public:
enum Status { Success, Error };
enum State { Idle, Running, Terminated };
private:
KviIrcConnection * m_pConnection; // shallow, never null
KviIrcConnectionTarget * m_pTarget; // shallow, never null
KviConsole * m_pConsole; // shallow, never null
Status m_eStatus;
State m_eState;
// Auxiliary stuff
TQTimer * m_pStartTimer; // timer used to start the connection
KviDns * m_pProxyDns; // the dns object for the proxy hostnames
KviDns * m_pServerDns; // the dns object for the server hostnames
char * m_pReadBuffer;
unsigned int m_uReadBufferLen;
unsigned int m_uReadPackets;
int m_iLastError;
public:
void start(KviIrcConnectionTarget * t);
// valid only after the terminated() signal
Status status(){ return m_eStatus; };
int lastError(){ return m_iLastError; };
// causes the resolver to terminate with iLastError == KviError_operationAborted
// the terminated() signal is emitted.
void abort();
protected slots:
void asyncStartResolve();
void serverLookupTerminated(KviDns *);
void proxyLookupTerminated(KviDns *);
private:
void cleanup();
void lookupProxyHostname();
void lookupServerHostname();
void haveServerIp();
bool validateLocalAddress(const TQString &szAddress,TQString &szBuffer);
void terminate(Status s,int iLastError);
signals:
void terminated();
};
#endif //!_KVI_IRCCONNECTIONTARGETRESOLVER_H_
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