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305 lines
10 KiB
305 lines
10 KiB
/*
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qgpgmejob.cpp
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This file is part of libkleopatra, the KDE keymanagement library
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Copyright (c) 2004 Klarälvdalens Datakonsult AB
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Libkleopatra is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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Libkleopatra is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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In addition, as a special exception, the copyright holders give
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permission to link the code of this program with any edition of
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the TQt library by Trolltech AS, Norway (or with modified versions
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of TQt that use the same license as TQt), and distribute linked
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combinations including the two. You must obey the GNU General
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Public License in all respects for all of the code used other than
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TQt. If you modify this file, you may extend this exception to
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your version of the file, but you are not obligated to do so. If
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you do not wish to do so, delete this exception statement from
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your version.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include "qgpgmejob.h"
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#include "qgpgmeprogresstokenmapper.h"
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#include <kleo/job.h>
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#include <ui/passphrasedialog.h>
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#include <qgpgme/eventloopinteractor.h>
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#include <qgpgme/dataprovider.h>
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#include <gpgmepp/context.h>
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#include <gpgmepp/data.h>
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#include <klocale.h>
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#include <kstandarddirs.h>
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#include <tqstring.h>
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#include <tqstringlist.h>
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#include <algorithm>
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#include <assert.h>
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#include <string.h>
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namespace {
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class InvarianceChecker {
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public:
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#ifdef NDEBUG
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InvarianceChecker( const Kleo::QGpgMEJob * ) {}
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#else
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InvarianceChecker( const Kleo::QGpgMEJob * job )
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: _this( job )
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{
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assert( _this );
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_this->checkInvariants();
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}
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~InvarianceChecker() {
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_this->checkInvariants();
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}
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private:
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const Kleo::QGpgMEJob * _this;
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#endif
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};
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}
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Kleo::QGpgMEJob::QGpgMEJob( Kleo::Job * _this, GpgME::Context * context )
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: GpgME::ProgressProvider(),
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GpgME::PassphraseProvider(),
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mThis( _this ),
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mCtx( context ),
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mInData( 0 ),
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mInDataDataProvider( 0 ),
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mOutData( 0 ),
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mOutDataDataProvider( 0 ),
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mPatterns( 0 ),
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mReplacedPattern( 0 ),
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mNumPatterns( 0 ),
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mChunkSize( 1024 ),
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mPatternStartIndex( 0 ), mPatternEndIndex( 0 )
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{
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InvarianceChecker check( this );
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assert( context );
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TQObject::connect( QGpgME::EventLoopInteractor::instance(), TQT_SIGNAL(aboutToDestroy()),
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_this, TQT_SLOT(slotCancel()) );
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context->setProgressProvider( this );
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// (mmutz) work around a gpgme bug in versions at least <= 0.9.0.
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// These versions will return GPG_ERR_NOT_IMPLEMENTED from
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// a CMS sign operation when a passphrase callback is set.
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if ( context->protocol() == GpgME::Context::OpenPGP )
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context->setPassphraseProvider( this );
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}
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void Kleo::QGpgMEJob::checkInvariants() const {
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#ifndef NDEBUG
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if ( mPatterns ) {
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assert( mPatterns[mNumPatterns] == 0 );
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if ( mPatternEndIndex > 0 ) {
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assert( mPatternEndIndex > mPatternStartIndex );
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assert( mPatternEndIndex - mPatternStartIndex == mChunkSize );
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} else {
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assert( mPatternEndIndex == mPatternStartIndex );
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}
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if ( mPatternEndIndex < mNumPatterns ) {
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assert( mPatterns[mPatternEndIndex] == 0 );
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assert( mReplacedPattern != 0 );
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} else {
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assert( mReplacedPattern == 0 );
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}
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} else {
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assert( mNumPatterns == 0 );
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assert( mPatternStartIndex == 0 );
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assert( mPatternEndIndex == 0 );
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assert( mReplacedPattern == 0 );
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}
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#endif
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}
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Kleo::QGpgMEJob::~QGpgMEJob() {
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InvarianceChecker check( this );
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delete mCtx; mCtx = 0;
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delete mInData; mInData = 0;
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delete mInDataDataProvider; mInDataDataProvider = 0;
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delete mOutData; mOutData = 0;
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delete mOutDataDataProvider; mOutDataDataProvider = 0;
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deleteAllPatterns();
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}
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void Kleo::QGpgMEJob::deleteAllPatterns() {
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if ( mPatterns )
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for ( unsigned int i = 0 ; i < mNumPatterns ; ++i )
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free( (void*)mPatterns[i] );
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free( (void*)mReplacedPattern ); mReplacedPattern = 0;
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delete[] mPatterns; mPatterns = 0;
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mPatternEndIndex = mPatternStartIndex = mNumPatterns = 0;
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}
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void Kleo::QGpgMEJob::hookupContextToEventLoopInteractor() {
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mCtx->setManagedByEventLoopInteractor( true );
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TQObject::connect( QGpgME::EventLoopInteractor::instance(),
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TQT_SIGNAL(operationDoneEventSignal(GpgME::Context*,const GpgME::Error&)),
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mThis, TQT_SLOT(slotOperationDoneEvent(GpgME::Context*,const GpgME::Error&)) );
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}
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void Kleo::QGpgMEJob::setPatterns( const TQStringList & sl, bool allowEmpty ) {
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InvarianceChecker check( this );
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deleteAllPatterns();
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// create a new null-terminated C array of char* from patterns:
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mPatterns = new const char*[ sl.size() + 1 ];
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const char* * pat_it = mPatterns;
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mNumPatterns = 0;
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for ( TQStringList::const_iterator it = sl.begin() ; it != sl.end() ; ++it ) {
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if ( (*it).isNull() )
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continue;
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if ( (*it).isEmpty() && !allowEmpty )
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continue;
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*pat_it++ = strdup( (*it).utf8().data() );
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++mNumPatterns;
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}
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*pat_it++ = 0;
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mReplacedPattern = 0;
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mPatternEndIndex = mChunkSize = mNumPatterns;
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}
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void Kleo::QGpgMEJob::setChunkSize( unsigned int chunksize ) {
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InvarianceChecker check( this );
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if ( mReplacedPattern ) {
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mPatterns[mPatternEndIndex] = mReplacedPattern;
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mReplacedPattern = 0;
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}
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mChunkSize = std::min( chunksize, mNumPatterns );
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mPatternStartIndex = 0;
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mPatternEndIndex = mChunkSize;
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mReplacedPattern = mPatterns[mPatternEndIndex];
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mPatterns[mPatternEndIndex] = 0;
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}
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const char* * Kleo::QGpgMEJob::nextChunk() {
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InvarianceChecker check( this );
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if ( mReplacedPattern ) {
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mPatterns[mPatternEndIndex] = mReplacedPattern;
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mReplacedPattern = 0;
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}
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mPatternStartIndex += mChunkSize;
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mPatternEndIndex += mChunkSize;
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if ( mPatternEndIndex < mNumPatterns ) { // could safely be <=, but the last entry is NULL anyway
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mReplacedPattern = mPatterns[mPatternEndIndex];
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mPatterns[mPatternEndIndex] = 0;
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}
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return patterns();
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}
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const char* * Kleo::QGpgMEJob::patterns() const {
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InvarianceChecker check( this );
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if ( mPatternStartIndex < mNumPatterns )
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return mPatterns + mPatternStartIndex;
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return 0;
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}
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GpgME::Error Kleo::QGpgMEJob::setSigningKeys( const std::vector<GpgME::Key> & signers ) {
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mCtx->clearSigningKeys();
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for ( std::vector<GpgME::Key>::const_iterator it = signers.begin() ; it != signers.end() ; ++it ) {
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if ( (*it).isNull() )
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continue;
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if ( const GpgME::Error err = mCtx->addSigningKey( *it ) )
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return err;
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}
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return 0;
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}
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void Kleo::QGpgMEJob::createInData( const TQByteArray & in ) {
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mInDataDataProvider = new QGpgME::TQByteArrayDataProvider( in );
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mInData = new GpgME::Data( mInDataDataProvider );
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assert( !mInData->isNull() );
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}
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void Kleo::QGpgMEJob::createOutData() {
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mOutDataDataProvider = new QGpgME::TQByteArrayDataProvider();
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mOutData = new GpgME::Data( mOutDataDataProvider );
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assert( !mOutData->isNull() );
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}
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static const unsigned int GetAuditLogFlags = GpgME::Context::AuditLogWithHelp|GpgME::Context::HtmlAuditLog;
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static TQString audit_log_as_html( GpgME::Context * ctx, GpgME::Error & err ) {
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assert( ctx );
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QGpgME::TQByteArrayDataProvider dp;
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GpgME::Data data( &dp );
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assert( !data.isNull() );
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if ( ( err = ctx->getAuditLog( data, GetAuditLogFlags ) ) )
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return TQString();
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const TQByteArray ba = dp.data();
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return TQString::fromUtf8( ba.data(), ba.size() );
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}
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void Kleo::QGpgMEJob::doSlotOperationDoneEvent( GpgME::Context * context, const GpgME::Error & e ) {
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if ( context == mCtx ) {
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doEmitDoneSignal();
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doOperationDoneEvent( e );
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mThis->deleteLater();
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}
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}
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void Kleo::QGpgMEJob::getAuditLog() {
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if ( !mCtx )
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return;
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mAuditLogAsHtml = audit_log_as_html( mCtx, mAuditLogError );
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}
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void Kleo::QGpgMEJob::doSlotCancel() {
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mCtx->cancelPendingOperation();
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}
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void Kleo::QGpgMEJob::showProgress( const char * what, int type, int current, int total ) {
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doEmitProgressSignal( QGpgMEProgressTokenMapper::instance()->map( what, type, current, total ), current, total );
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}
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char * Kleo::QGpgMEJob::getPassphrase( const char * useridHint, const char * /*description*/,
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bool previousWasBad, bool & canceled ) {
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// DF: here, description is the key fingerprint, twice, then "17 0". Not really descriptive.
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// So I'm ignoring TQString::fromLocal8Bit( description ) )
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TQString msg = previousWasBad ?
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i18n( "You need a passphrase to unlock the secret key for user:<br/> %1 (retry)" ) :
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i18n( "You need a passphrase to unlock the secret key for user:<br/> %1" );
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msg = msg.tqarg( TQString::fromUtf8( useridHint ) ) + "<br/><br/>";
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msg.prepend( "<qt>" );
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msg += i18n( "This dialog will reappear every time the passphrase is needed. For a more secure solution that also allows caching the passphrase, use gpg-agent." ) + "<br/>";
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const TQString gpgAgent = KStandardDirs::findExe( "gpg-agent" );
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if ( !gpgAgent.isEmpty() ) {
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msg += i18n( "gpg-agent was found in %1, but does not appear to be running." )
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.tqarg( gpgAgent );
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} else {
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msg += i18n( "gpg-agent is part of gnupg-%1, which you can download from %2" )
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.tqarg( "1.9" )
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.tqarg( "http://www.gnupg.org/download" ); // add #gnupg2 if you can make this a real link
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}
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msg += "<br/>";
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msg += i18n( "For information on how to set up gpg-agent, see %1" )
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.tqarg( "http://kmail.kde.org/kmail-pgpmime-howto.html" );
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msg += "<br/><br/>";
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msg += i18n( "Enter passphrase:" );
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Kleo::PassphraseDialog dlg( msg, i18n("Passphrase Dialog") );
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if ( dlg.exec() != TQDialog::Accepted ) {
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canceled = true;
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return 0;
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}
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canceled = false;
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// gpgme++ free()s it, and we need to copy as long as dlg isn't deleted :o
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return strdup( dlg.passphrase() );
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}
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