libkleo

cryptobackendfactory.h

00001 /*
00002     kleo/cryptobackendfactory.h
00003 
00004     This file is part of libkleopatra, the KDE keymanagement library
00005     Copyright (c) 2004,2005 Klarälvdalens Datakonsult AB
00006 
00007     Libkleopatra is free software; you can redistribute it and/or
00008     modify it under the terms of the GNU General Public License as
00009     published by the Free Software Foundation; either version 2 of the
00010     License, or (at your option) any later version.
00011 
00012     Libkleopatra is distributed in the hope that it will be useful,
00013     but WITHOUT ANY WARRANTY; without even the implied warranty of
00014     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015     General Public License for more details.
00016 
00017     You should have received a copy of the GNU General Public License
00018     along with this program; if not, write to the Free Software
00019     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
00020 
00021     In addition, as a special exception, the copyright holders give
00022     permission to link the code of this program with any edition of
00023     the Qt library by Trolltech AS, Norway (or with modified versions
00024     of Qt that use the same license as Qt), and distribute linked
00025     combinations including the two.  You must obey the GNU General
00026     Public License in all respects for all of the code used other than
00027     Qt.  If you modify this file, you may extend this exception to
00028     your version of the file, but you are not obligated to do so.  If
00029     you do not wish to do so, delete this exception statement from
00030     your version.
00031 */
00032 
00033 #ifndef __KLEO_CRYPTOBACKENDFACTORY_H__
00034 #define __KLEO_CRYPTOBACKENDFACTORY_H__
00035 
00036 #include "kleo/kleo_export.h"
00037 #include "kleo/cryptobackend.h"
00038 
00039 #include <gpgme++/global.h>
00040 
00041 #include <QtCore/QObject>
00042 
00043 #include <vector>
00044 #include <map>
00045 
00046 namespace Kleo {
00047   class BackendConfigWidget;
00048 }
00049 
00050 class QString;
00051 class KConfig;
00052 
00053 namespace Kleo {
00054 
00055   struct lt_i_str {
00056     bool operator()( const char * one, const char * two ) const {
00057       return qstricmp( one, two ) < 0;
00058     }
00059   };
00060 
00061   class KLEO_EXPORT CryptoBackendFactory : public QObject {
00062     Q_OBJECT
00063   protected:
00064     CryptoBackendFactory();
00065     ~CryptoBackendFactory();
00066   public:
00067     static CryptoBackendFactory * instance();
00068 
00069     const CryptoBackend::Protocol * smime() const;
00070     const CryptoBackend::Protocol * openpgp() const;
00071     const CryptoBackend::Protocol * protocol( const char * name ) const;
00072     const CryptoBackend::Protocol * protocol( GpgME::Protocol proto ) const;
00073 
00074     CryptoConfig * config() const;
00075 
00076     const CryptoBackend * backend( unsigned int idx ) const;
00077 
00078     bool hasBackends() const;
00079 
00080     Kleo::BackendConfigWidget * configWidget( QWidget * parent=0, const char * name=0 ) const;
00081 
00082     KConfig* configObject() const;
00083 
00084     // The preferred backend for smime (can be 0) - currently unused
00085     //const CryptoBackend* smimeBackend() const;
00086     // The preferred backend for openpgp (can be 0) - currently unused
00087     //const CryptoBackend* openpgpBackend() const;
00088 
00089     // For BackendConfigWidget to save the configuration
00090     // 0 means no backend selected.
00091     void setSMIMEBackend( const CryptoBackend* backend );
00092     void setOpenPGPBackend( const CryptoBackend* backend );
00093     void setProtocolBackend( const char * name, const CryptoBackend * backend );
00094 
00095     void scanForBackends( QStringList * reasons=0 );
00096 
00097     const char * enumerateProtocols( int i ) const;
00098 
00099     bool knowsAboutProtocol( const char * name ) const;
00100 
00101   protected:
00102     std::vector<CryptoBackend*> mBackendList;
00103     mutable KConfig* mConfigObject;
00104     typedef std::map<const char *, const CryptoBackend*, lt_i_str> BackendMap;
00105     BackendMap mBackends;
00106     typedef std::vector<const char *> ProtocolSet;
00107     ProtocolSet mAvailableProtocols;
00108 
00109   private:
00110     const CryptoBackend * backendByName( const QString& name ) const;
00111     void readConfig();
00112     CryptoBackendFactory( const CryptoBackendFactory & );
00113     void operator=( const CryptoBackendFactory & );
00114 
00115     static CryptoBackendFactory * mSelf;
00116   };
00117 
00118 
00119 }
00120 
00121 #endif // __KLEO_CRYPTOBACKENDFACTORY_H__
libkleo

cryptobackendfactory.h

libkleo

kdepim
