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/*
msnchallengehandler.h - Computes a msn challenge response hash key.
Copyright (c) 2005 by Gregg Edghill <gregg.edghill@gmail.com>
Kopete (c) 2003-2005 by The Kopete developers <kopete-devel@kde.org>
Portions taken from
http://msnpiki.msnfanatic.com/index.php/MSNP11:Challenges
*************************************************************************
* *
* 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. *
* *
*************************************************************************
*/
#ifndef MSNCHALLENGEHANDLER_H
#define MSNCHALLENGEHANDLER_H
#include <qobject.h>
#include <qvaluevector.h>
/**
* Provides a simple way to compute a msn challenge response hash key.
*
* @author Gregg Edghill
*/
class MSNChallengeHandler : public QObject
{
Q_OBJECT
public:
MSNChallengeHandler(const QString& productKey, const QString& productId);
~MSNChallengeHandler();
/**
* Computes the response hash string for the specified challenge string.
*/
QString computeHash(const QString& challengeString);
/**
* Returns the product id used by the challenge handler.
*/
QString productId();
private:
/**
* Creates a 64-bit hash key.
*/
Q_INT64 createHashKey(const QValueVector<Q_INT32>& md5Integers, const QValueVector<Q_INT32>& challengeIntegers);
/**
* Swaps the bytes in a hex string.
*/
QString hexSwap(const QString& in);
QString m_productKey;
QString m_productId;
};
#endif
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