kde-playground/kdepim/libkleo/backends/chiasmus/chiasmuslibrary.cpp
2015-04-14 21:49:29 +00:00

122 lines
4 KiB
C++

/*
chiasmuslibrary.cpp
This file is part of libkleopatra, the KDE keymanagement library
Copyright (c) 2005 Klarälvdalens Datakonsult AB
Libkleopatra 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.
Libkleopatra 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
In addition, as a special exception, the copyright holders give
permission to link the code of this program with any edition of
the Qt library by Trolltech AS, Norway (or with modified versions
of Qt that use the same license as Qt), and distribute linked
combinations including the two. You must obey the GNU General
Public License in all respects for all of the code used other than
Qt. If you modify this file, you may extend this exception to
your version of the file, but you are not obligated to do so. If
you do not wish to do so, delete this exception statement from
your version.
*/
#include "chiasmuslibrary.h"
#include "chiasmusbackend.h"
#include "kleo/cryptoconfig.h"
#include <klibrary.h>
#include <kdebug.h>
#include <klocale.h>
#include <QFile>
#include <QByteArray>
#include <vector>
#include <algorithm>
#include <cassert>
#include <cstdlib>
#include <cstring>
Kleo::ChiasmusLibrary * Kleo::ChiasmusLibrary::self = 0;
Kleo::ChiasmusLibrary::ChiasmusLibrary() : mXiaLibrary( 0 ) {
self = this;
}
Kleo::ChiasmusLibrary::~ChiasmusLibrary() {
//delete mXiaLibrary; // hmm, how to get rid of it, then?
}
Kleo::ChiasmusLibrary::main_func Kleo::ChiasmusLibrary::chiasmus( QString * reason ) const {
assert( ChiasmusBackend::instance() );
assert( ChiasmusBackend::instance()->config() );
const CryptoConfigEntry * lib = ChiasmusBackend::instance()->config()->entry( QLatin1String("Chiasmus"), QLatin1String("General"), QLatin1String("lib") );
assert( lib );
const QString libfile = lib->urlValue().path();
if ( !mXiaLibrary )
mXiaLibrary = new KLibrary( libfile );
if ( mXiaLibrary->fileName().isEmpty() || !mXiaLibrary->isLoaded() ) {
if ( reason )
*reason = i18n( "Failed to load %1: %2",
libfile, mXiaLibrary->errorString() );
kDebug(5150) <<"ChiasmusLibrary: loading \"" << libfile
<< "\" failed:" << mXiaLibrary->errorString();
delete mXiaLibrary;
mXiaLibrary = 0;
return 0;
}
KLibrary::void_function_ptr symbol = mXiaLibrary->resolveFunction( "Chiasmus" );
if ( !symbol ) {
if ( reason )
*reason = i18n( "Failed to load %1: %2",
libfile, i18n( "Library does not contain the symbol \"Chiasmus\"." ) );
kDebug(5150) <<"ChiasmusLibrary: loading \"" << libfile
<< "\" failed: " << "Library does not contain the symbol \"Chiasmus\".";
delete mXiaLibrary;
mXiaLibrary = 0;
return 0;
}
assert( symbol );
return ( main_func )symbol;
}
namespace {
class ArgvProvider {
char ** mArgv;
int mArgc;
public:
ArgvProvider( const QVector<QByteArray> & args ) {
mArgv = new char * [args.size()];
for ( int i = 0 ; i < args.size() ; ++i )
mArgv[i] = strdup( args[i].data() );
}
~ArgvProvider() {
std::for_each( mArgv, mArgv + mArgc, std::free );
delete[] mArgv;
}
char ** argv() const { return mArgv; }
};
}
int Kleo::ChiasmusLibrary::perform( const QVector<QByteArray> & args ) const {
if ( main_func func = chiasmus() )
return func( args.size(), ArgvProvider( args ).argv() );
else
return -1;
}