You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
276 lines
8.9 KiB
276 lines
8.9 KiB
/*
|
|
cryptobackendfactory.cpp
|
|
|
|
This file is part of libkleopatra, the KDE key management library
|
|
Copyright (c) 2001,2004,2005 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.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
#endif
|
|
|
|
#include "cryptobackendfactory.h"
|
|
|
|
#include <backends/qgpgme/qgpgmebackend.h>
|
|
#if 0 // disabled for kde-3.3
|
|
#include <backends/kpgp/pgp2backend.h>
|
|
#include <backends/kpgp/pgp5backend.h>
|
|
#include <backends/kpgp/pgp6backend.h>
|
|
#include <backends/kpgp/gpg1backend.h>
|
|
#endif
|
|
#include <backends/chiasmus/chiasmusbackend.h>
|
|
#include <ui/backendconfigwidget.h>
|
|
|
|
#include <kconfig.h>
|
|
#include <klocale.h>
|
|
#include <kdebug.h>
|
|
#include <kmessagebox.h>
|
|
#include <kapplication.h>
|
|
|
|
#include <iterator>
|
|
#include <algorithm>
|
|
|
|
#include <cassert>
|
|
|
|
Kleo::CryptoBackendFactory * Kleo::CryptoBackendFactory::mSelf = 0;
|
|
|
|
static const char * availableProtocols[] = {
|
|
"Chiasmus",
|
|
"OpenPGP", "SMIME",
|
|
};
|
|
static const unsigned int numAvailableProtocols = sizeof availableProtocols / sizeof *availableProtocols;
|
|
|
|
Kleo::CryptoBackendFactory::CryptoBackendFactory()
|
|
: TQObject( qApp, "CryptoBackendFactory::instance()" ),
|
|
mConfigObject( 0 ),
|
|
mAvailableProtocols( availableProtocols, availableProtocols + numAvailableProtocols )
|
|
{
|
|
mBackendList.push_back( new QGpgMEBackend() );
|
|
#if 0 // disabled for kde-3.3
|
|
mBackendList.push_back( new PGP2Backend() );
|
|
mBackendList.push_back( new PGP5Backend() );
|
|
mBackendList.push_back( new PGP6Backend() );
|
|
mBackendList.push_back( new GPG1Backend() );
|
|
#endif
|
|
mBackendList.push_back( new ChiasmusBackend() );
|
|
scanForBackends();
|
|
readConfig();
|
|
|
|
mSelf = this; // last!
|
|
}
|
|
|
|
Kleo::CryptoBackendFactory::~CryptoBackendFactory() {
|
|
mSelf = 0; // first!
|
|
|
|
for ( std::vector<CryptoBackend*>::iterator it = mBackendList.begin() ; it != mBackendList.end() ; ++it ) {
|
|
delete *it;
|
|
*it = 0;
|
|
}
|
|
delete mConfigObject;
|
|
mConfigObject = 0;
|
|
}
|
|
|
|
Kleo::CryptoBackendFactory * Kleo::CryptoBackendFactory::instance() {
|
|
if ( !mSelf )
|
|
mSelf = new CryptoBackendFactory();
|
|
return mSelf;
|
|
}
|
|
|
|
|
|
// const Kleo::CryptoBackend* Kleo::CryptoBackendFactory::smimeBackend() const {
|
|
// return mSMIMEBackend;
|
|
// }
|
|
|
|
// const Kleo::CryptoBackend* Kleo::CryptoBackendFactory::openpgpBackend() const {
|
|
// return mOpenPGPBackend;
|
|
// }
|
|
|
|
const Kleo::CryptoBackend::Protocol * Kleo::CryptoBackendFactory::smime() const {
|
|
const BackendMap::const_iterator it = mBackends.find( "SMIME" );
|
|
if ( it == mBackends.end() )
|
|
return 0;
|
|
if ( !it->second )
|
|
return 0;
|
|
return it->second->smime();
|
|
}
|
|
|
|
const Kleo::CryptoBackend::Protocol * Kleo::CryptoBackendFactory::openpgp() const {
|
|
const BackendMap::const_iterator it = mBackends.find( "OpenPGP" );
|
|
if ( it == mBackends.end() )
|
|
return 0;
|
|
if ( !it->second )
|
|
return 0;
|
|
return it->second->openpgp();
|
|
}
|
|
|
|
const Kleo::CryptoBackend::Protocol * Kleo::CryptoBackendFactory::protocol( const char * name ) const {
|
|
const BackendMap::const_iterator it = mBackends.find( name );
|
|
if ( it == mBackends.end() )
|
|
return 0;
|
|
if ( !it->second )
|
|
return 0;
|
|
return it->second->protocol( name );
|
|
}
|
|
|
|
Kleo::CryptoConfig * Kleo::CryptoBackendFactory::config() const {
|
|
// ## should we use mSMIMEBackend? mOpenPGPBackend? backend(0) i.e. always qgpgme?
|
|
return backend( 0 ) ? backend( 0 )->config() : 0;
|
|
}
|
|
|
|
bool Kleo::CryptoBackendFactory::hasBackends() const {
|
|
return !mBackendList.empty();
|
|
}
|
|
|
|
void Kleo::CryptoBackendFactory::scanForBackends( TQStringList * reasons ) {
|
|
for ( std::vector<CryptoBackend*>::const_iterator it = mBackendList.begin() ; it != mBackendList.end() ; ++it ) {
|
|
assert( *it );
|
|
for ( int i = 0 ; const char * protocol = (*it)->enumerateProtocols( i ) ; ++i ) {
|
|
TQString reason;
|
|
if ( (*it)->supportsProtocol( protocol ) && !(*it)->checkForProtocol( protocol, &reason ) ) {
|
|
if ( reasons ) {
|
|
reasons->push_back( i18n("While scanning for %1 support in backend %2:")
|
|
.arg( protocol, (*it)->displayName() ) );
|
|
reasons->push_back( " " + reason );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
const Kleo::CryptoBackend * Kleo::CryptoBackendFactory::backend( unsigned int idx ) const {
|
|
return ( idx < mBackendList.size() ) ? mBackendList[idx] : 0 ;
|
|
}
|
|
|
|
const Kleo::CryptoBackend * Kleo::CryptoBackendFactory::backendByName( const TQString& name ) const {
|
|
for ( std::vector<CryptoBackend*>::const_iterator it = mBackendList.begin() ; it != mBackendList.end() ; ++it ) {
|
|
if ( (*it)->name() == name )
|
|
return *it;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
Kleo::BackendConfigWidget * Kleo::CryptoBackendFactory::configWidget( TQWidget * parent, const char * name ) const {
|
|
return new Kleo::BackendConfigWidget( mSelf, parent, name );
|
|
}
|
|
|
|
KConfig* Kleo::CryptoBackendFactory::configObject() const {
|
|
if ( !mConfigObject )
|
|
// this is unsafe. We're a lib, used by concurrent apps.
|
|
mConfigObject = new KConfig( "libkleopatrarc" );
|
|
return mConfigObject;
|
|
}
|
|
|
|
void Kleo::CryptoBackendFactory::setSMIMEBackend( const CryptoBackend* backend ) {
|
|
setProtocolBackend( "SMIME", backend );
|
|
}
|
|
|
|
void Kleo::CryptoBackendFactory::setOpenPGPBackend( const CryptoBackend* backend ) {
|
|
setProtocolBackend( "OpenPGP", backend );
|
|
}
|
|
|
|
void Kleo::CryptoBackendFactory::setProtocolBackend( const char * protocol, const CryptoBackend * backend ) {
|
|
const TQString name = backend ? backend->name() : TQString::null ;
|
|
KConfigGroup group( configObject(), "Backends" );
|
|
group.writeEntry( protocol, name );
|
|
configObject()->sync();
|
|
mBackends[protocol] = backend;
|
|
}
|
|
|
|
static const char * defaultBackend( const char * proto ) {
|
|
static const struct {
|
|
const char * proto;
|
|
const char * backend;
|
|
} defaults[] = {
|
|
{ "OpenPGP", "gpgme" },
|
|
{ "SMIME", "gpgme" },
|
|
{ "Chiasmus", "chiasmus" },
|
|
};
|
|
for ( unsigned int i = 0 ; i < sizeof defaults / sizeof *defaults ; ++i )
|
|
if ( qstricmp( proto, defaults[i].proto ) == 0 )
|
|
return defaults[i].backend;
|
|
return 0;
|
|
}
|
|
|
|
void Kleo::CryptoBackendFactory::readConfig() {
|
|
mBackends.clear();
|
|
const KConfigGroup group( configObject(), "Backends" );
|
|
for ( ProtocolSet::const_iterator it = mAvailableProtocols.begin(), end = mAvailableProtocols.end() ; it != end ; ++it ) {
|
|
const TQString backend = group.readEntry( *it, defaultBackend( *it ) );
|
|
mBackends[*it] = backendByName( backend );
|
|
}
|
|
}
|
|
|
|
const char * Kleo::CryptoBackendFactory::enumerateProtocols( int i ) const {
|
|
if ( i < 0 || static_cast<unsigned int>( i ) >= mAvailableProtocols.size() )
|
|
return 0;
|
|
return mAvailableProtocols[i];
|
|
}
|
|
|
|
namespace {
|
|
class CaseInsensitiveString {
|
|
const char * m;
|
|
public:
|
|
CaseInsensitiveString( const char * s ) : m( s ) {}
|
|
#define make_operator( op ) \
|
|
bool operator op( const CaseInsensitiveString & other ) const { \
|
|
return qstricmp( m, other.m ) op 0; \
|
|
} \
|
|
bool operator op( const char * other ) const { \
|
|
return qstricmp( m, other ) op 0; \
|
|
}
|
|
make_operator( == )
|
|
make_operator( != )
|
|
make_operator( < )
|
|
make_operator( > )
|
|
make_operator( <= )
|
|
make_operator( >= )
|
|
#undef make_operator
|
|
operator const char *() const { return m; }
|
|
};
|
|
#define make_ext_operator( op, inv_op ) \
|
|
inline bool operator op( const char * lhs, const CaseInsensitiveString & rhs ) { \
|
|
return rhs.operator inv_op( lhs ); \
|
|
}
|
|
make_ext_operator( ==, == )
|
|
make_ext_operator( !=, != )
|
|
make_ext_operator( <, > )
|
|
make_ext_operator( >, < )
|
|
make_ext_operator( <=, >= )
|
|
make_ext_operator( >=, <= )
|
|
#undef make_ext_operator
|
|
|
|
}
|
|
|
|
bool Kleo::CryptoBackendFactory::knowsAboutProtocol( const char * name ) const {
|
|
return std::find( mAvailableProtocols.begin(), mAvailableProtocols.end(),
|
|
CaseInsensitiveString( name ) ) != mAvailableProtocols.end();
|
|
}
|
|
|
|
#include "cryptobackendfactory.moc"
|
|
|