certmanager/lib

qgpgmejob.h

00001 /*
00002     qgpgmejob.h
00003 
00004     This file is part of libkleopatra, the KDE keymanagement library
00005     Copyright (c) 2004 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_QGPGMEJOB_H__
00034 #define __KLEO_QGPGMEJOB_H__
00035 
00036 #include <gpgmepp/interfaces/progressprovider.h>
00037 #include <gpgmepp/interfaces/passphraseprovider.h>
00038 
00039 #include <gpgmepp/key.h>
00040 
00041 #include <qcstring.h>
00042 
00043 #include <vector>
00044 #include <kdepimmacros.h>
00045 
00046 namespace GpgME {
00047   class Error;
00048   class Context;
00049   class Data;
00050 }
00051 
00052 namespace Kleo {
00053   class Job;
00054 }
00055 
00056 namespace QGpgME {
00057   class QByteArrayDataProvider;
00058 }
00059 
00060 class QString;
00061 class QStringList;
00062 
00063 namespace Kleo {
00064 
00078   class KDE_EXPORT QGpgMEJob : public GpgME::ProgressProvider, public GpgME::PassphraseProvider {
00079   public:
00080     QGpgMEJob( Kleo::Job * _this, GpgME::Context * context );
00081     ~QGpgMEJob();
00082 
00083   protected:
00086     virtual void doOperationDoneEvent( const GpgME::Error & e ) = 0;
00088     void hookupContextToEventLoopInteractor();
00090     void setPatterns( const QStringList & sl, bool allowEmpty=false );
00092     unsigned int numPatterns() const { return mNumPatterns; }
00094     const char* * nextChunk();
00096     const char* * patterns() const;
00098     void setChunkSize( unsigned int size );
00100     unsigned int chunkSize() const { return mChunkSize; }
00102     void createOutData();
00105     void createInData( const QByteArray & in );
00107     GpgME::Error setSigningKeys( const std::vector<GpgME::Key> & signers );
00109     void doSlotOperationDoneEvent( GpgME::Context * context, const GpgME::Error & e );
00110 
00111     //
00112     // only boring stuff below this line...
00113     //
00114 
00115   protected:
00116     virtual void doEmitProgressSignal( const QString & what, int current, int total ) = 0;
00117     virtual void doEmitDoneSignal() = 0;
00118     void doSlotCancel();
00119 
00120   private:
00122     void showProgress( const char * what, int type, int current, int total );
00123     char * getPassphrase( const char * useridHint, const char * description,
00124               bool previousWasBad, bool & canceled );
00125     void deleteAllPatterns();
00126 
00127   public:
00128     void checkInvariants() const;
00129 
00130   protected:
00131     Kleo::Job * mThis;
00132     GpgME::Context * mCtx;
00133     GpgME::Data * mInData;
00134     QGpgME::QByteArrayDataProvider * mInDataDataProvider;
00135     GpgME::Data * mOutData;
00136     QGpgME::QByteArrayDataProvider * mOutDataDataProvider;
00137   private:
00138     const char* * mPatterns;
00139     // holds the entry - if any - in mPattern that was replaced with
00140     // NULL to create a temporary end-of-array marker for gpgme:
00141     const char * mReplacedPattern;
00142     unsigned int mNumPatterns;
00143     unsigned int mChunkSize;
00144     unsigned int mPatternStartIndex, mPatternEndIndex;
00145   };
00146 
00147 }
00148 
00149 #define make_slot_cancel private: void slotCancel() { QGpgMEJob::doSlotCancel(); }
00150 #define make_progress_emitter private: void doEmitProgressSignal( const QString & what, int cur, int tot ) { emit progress( what, cur, tot ); }
00151 #define make_done_emitter private: void doEmitDoneSignal() { emit done(); }
00152 #define QGPGME_JOB make_slot_cancel make_progress_emitter make_done_emitter
00153 
00154 #endif // __KLEO_QGPGMEJOB_H__
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