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/*
Kopete Groupwise Protocol
inputprotocolbase.cpp - Ancestor of all protocols used for reading GroupWise input
Copyright (c) 2004 SUSE Linux AG http://www.suse.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. *
* *
*************************************************************************
*/
#include "inputprotocolbase.h"
InputProtocolBase::InputProtocolBase(TQObject *parent, const char *name)
: TQObject(parent, name)
{
m_state = NeedMore;
m_bytes = 0;
}
InputProtocolBase::~InputProtocolBase()
{
}
uint InputProtocolBase::state() const
{
return m_state;
}
bool InputProtocolBase::readString( TQString &message )
{
uint len;
TQCString rawData;
if ( !safeReadBytes( rawData, len ) )
return false;
message = TQString::fromUtf8( rawData.data(), len - 1 );
return true;
}
bool InputProtocolBase::okToProceed()
{
if ( m_din )
{
if ( m_din->atEnd() )
{
m_state = NeedMore;
tqDebug( "InputProtocol::okToProceed() - Server message ended prematurely!" );
}
else
return true;
}
return false;
}
bool InputProtocolBase::safeReadBytes( TQCString & data, uint & len )
{
// read the length of the bytes
TQ_UINT32 val;
if ( !okToProceed() )
return false;
*m_din >> val;
m_bytes += sizeof( TQ_UINT32 );
if ( val > 1024 )
return false;
//tqDebug( "EventProtocol::safeReadBytes() - expecting %i bytes", val );
TQCString temp( val );
if ( val != 0 )
{
if ( !okToProceed() )
return false;
// if the server splits packets here we are in trouble,
// as there is no way to see how much data was actually read
m_din->readRawBytes( temp.data(), val );
// the rest of the string will be filled with FF,
// so look for that in the last position instead of \0
// this caused a crash - guessing that temp.length() is set to the number of bytes actually read...
// if ( (TQ_UINT8)( * ( temp.data() + ( temp.length() - 1 ) ) ) == 0xFF )
if ( temp.length() < ( val - 1 ) )
{
tqDebug( "InputProtocol::safeReadBytes() - string broke, giving up, only got: %i bytes out of %i", temp.length(), val );
m_state = NeedMore;
return false;
}
}
data = temp;
len = val;
m_bytes += val;
return true;
}
#include "inputprotocolbase.moc"
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