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/*
Kopete Yahoo Protocol
Copyright (c) 2004 Duncan Mac-Vicar P. <duncan@kde.org>
Based on code
Copyright (c) 2004 SuSE Linux AG <http://www.suse.com>
Copyright (C) 2003 Justin Karneges <justin@affinix.com>
Kopete (c) 2002-2004 by the Kopete developers <kopete-devel@kde.org>
*************************************************************************
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Lesser General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
*************************************************************************
*/
#ifndef YAHOO_CORE_PROTOCOL_H
#define YAHOO_CORE_PROTOCOL_H
#include <qobject.h>
class Transfer;
class YMSGProtocol;
class CoreProtocol : public QObject
{
Q_OBJECT
public:
enum State { NeedMore, Available, NoData, OutOfSync };
CoreProtocol();
virtual ~CoreProtocol();
/**
* Reset the protocol, clear buffers
*/
void reset();
/**
* Accept data from the network, and buffer it into a useful message
* This requires parsing out each FLAP, etc. from the incoming data
* @param incomingBytes Raw data in wire format.
*/
void addIncomingData( const QByteArray& incomingBytes );
/**
* @return the incoming transfer or 0 if none is available.
*/
Transfer* incomingTransfer();
/**
* Convert a request into an outgoing transfer
* emits @ref outgoingData() with each part of the transfer
*/
void outgoingTransfer( Transfer* outgoing );
/**
* Get the state of the protocol
*/
int state();
signals:
/**
* Emitted as the core protocol converts fields to wire ready data
*/
void outgoingData( const QByteArray& );
/**
* Emitted when there is incoming data, parsed into a Transfer
*/
void incomingData();
protected slots:
/**
* Just a debug method to test emitting to the socket, atm - should go to the ClientStream
*/
void slotOutgoingData( const QByteArray & );
protected:
/**
* Check that there is data to read, and set the protocol's state if there isn't any.
*/
bool okToProceed( QDataStream & );
/**
* Convert incoming wire data into a Transfer object and queue it
* @return number of bytes from the input that were parsed into a Transfer
*/
int wireToTransfer( const QByteArray& wire );
private:
QByteArray m_in; // buffer containing unprocessed bytes we received
int m_error;
Transfer* m_inTransfer; // the transfer that is being received
int m_state; // represents the protocol's overall state
YMSGProtocol* m_YMSGProtocol;
};
#endif
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