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#ifndef _KviDnsResolver_h_
#define _KviDnsResolver_h_
//=============================================================================
//
// File : KviDnsResolverNew.h
// Creation date : Sat Jul 21 2000 13:59:11 by Szymon Stefanek
//
// This file is part of the KVIrc IRC client distribution
// Copyright (C) 2000-2010 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 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. If not, write to the Free Software Foundation,
// Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
//=============================================================================
// This is a nicely working DNS resolver that uses the QHostInfo interface
// and thus gets rid of all the ugly OS dependencies we have.
// It should be sufficient to rename this file and use this class
// instead of the old KviDnsResolver.
// However at present time (04.01.2010) QHostInfo doesn't seem to support
// IPv6. Despite the documentation saying that IPv6 addresses are supported
// the query performed by QHostInfo::lookupHost() asks only for the A record.
//
// Check it again with newer Qt versions and verify.
#include "kvi_settings.h"
#include "KviError.h" // FIXME: Get rid of this at all..
#include "KviPointerList.h"
#include <QObject>
class KviDnsResolverPrivate;
class QHostInfo;
class QString;
///
/// \class KviDnsResolver
/// \brief The KviDnsResolver class
///
/// This class...
///
class KVILIB_API KviDnsResolver : public QObject
{
Q_OBJECT
public:
///
/// Creates an instance of KviDnsResolver
///
KviDnsResolver(QObject * pParent = nullptr);
///
/// Destroys the instance of KviDnsResolver
/// and frees all the relevant resources
///
~KviDnsResolver();
public:
enum QueryType
{
IPv4,
IPv6,
Any
};
enum State
{
Idle,
Busy,
Failure,
Success
};
private:
KviDnsResolverPrivate * m_pPrivateData;
public:
///
/// Returns the resolver state
///
State state() const;
///
/// Starts a lookup for the specified DNS query of the specified type.
/// Returns true on success and false on failure.
///
bool lookup(const QString & szQuery, QueryType eType);
// Results (return always non null-data..but valid results only if state() == Success or Failure)
KviError::Code error() const; // DEPRECATED use errorString()
const QString & errorString() const;
const QString & hostName() const;
const QString & firstIpAddress();
int ipAddressCount() const;
KviPointerList<QString> * ipAddressList();
const QString & query() const;
bool isRunning() const;
private slots:
void slotHostLookupTerminated(const QHostInfo & oHostInfo);
signals:
void lookupDone(KviDnsResolver *);
}; // class KviDnsResolver
#endif //!_KviDnsResolver_h_
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