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101 lines
2.7 KiB
101 lines
2.7 KiB
/*
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Kopete Groupwise Protocol
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inputprotocolbase.cpp - Ancestor of all protocols used for reading GroupWise input
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Copyright (c) 2004 SUSE Linux AG http://www.suse.com
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Kopete (c) 2002-2004 by the Kopete developers <kopete-devel@kde.org>
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*************************************************************************
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Lesser General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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*************************************************************************
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*/
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#include "inputprotocolbase.h"
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InputProtocolBase::InputProtocolBase(QObject *parent, const char *name)
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: QObject(parent, name)
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{
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m_state = NeedMore;
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m_bytes = 0;
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}
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InputProtocolBase::~InputProtocolBase()
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{
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}
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uint InputProtocolBase::state() const
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{
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return m_state;
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}
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bool InputProtocolBase::readString( QString &message )
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{
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uint len;
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QCString rawData;
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if ( !safeReadBytes( rawData, len ) )
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return false;
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message = QString::fromUtf8( rawData.data(), len - 1 );
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return true;
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}
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bool InputProtocolBase::okToProceed()
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{
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if ( m_din )
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{
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if ( m_din->atEnd() )
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{
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m_state = NeedMore;
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qDebug( "InputProtocol::okToProceed() - Server message ended prematurely!" );
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}
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else
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return true;
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}
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return false;
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}
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bool InputProtocolBase::safeReadBytes( QCString & data, uint & len )
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{
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// read the length of the bytes
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Q_UINT32 val;
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if ( !okToProceed() )
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return false;
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*m_din >> val;
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m_bytes += sizeof( Q_UINT32 );
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if ( val > 1024 )
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return false;
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//qDebug( "EventProtocol::safeReadBytes() - expecting %i bytes", val );
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QCString temp( val );
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if ( val != 0 )
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{
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if ( !okToProceed() )
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return false;
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// if the server splits packets here we are in trouble,
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// as there is no way to see how much data was actually read
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m_din->readRawBytes( temp.data(), val );
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// the rest of the string will be filled with FF,
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// so look for that in the last position instead of \0
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// this caused a crash - guessing that temp.length() is set to the number of bytes actually read...
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// if ( (Q_UINT8)( * ( temp.data() + ( temp.length() - 1 ) ) ) == 0xFF )
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if ( temp.length() < ( val - 1 ) )
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{
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qDebug( "InputProtocol::safeReadBytes() - string broke, giving up, only got: %i bytes out of %i", temp.length(), val );
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m_state = NeedMore;
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return false;
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}
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}
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data = temp;
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len = val;
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m_bytes += val;
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return true;
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}
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#include "inputprotocolbase.moc"
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