From 460c52653ab0dcca6f19a4f492ed2c5e4e963ab0 Mon Sep 17 00:00:00 2001 From: toma Date: Wed, 25 Nov 2009 17:56:58 +0000 Subject: Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features. BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdepim@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da --- .../lib/backends/qgpgme/qgpgmekeylistjob.cpp | 187 +++++++++++++++++++++ 1 file changed, 187 insertions(+) create mode 100644 certmanager/lib/backends/qgpgme/qgpgmekeylistjob.cpp (limited to 'certmanager/lib/backends/qgpgme/qgpgmekeylistjob.cpp') diff --git a/certmanager/lib/backends/qgpgme/qgpgmekeylistjob.cpp b/certmanager/lib/backends/qgpgme/qgpgmekeylistjob.cpp new file mode 100644 index 00000000..9c87e3ef --- /dev/null +++ b/certmanager/lib/backends/qgpgme/qgpgmekeylistjob.cpp @@ -0,0 +1,187 @@ +/* + qgpgmekeylistjob.cpp + + This file is part of libkleopatra, the KDE keymanagement library + Copyright (c) 2004 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 +#endif + +#include "qgpgmekeylistjob.h" + +#include + +#include +#include +#include +#include + +#include +#include +#include + +#include + +#include + +#include +#include +#include + +Kleo::QGpgMEKeyListJob::QGpgMEKeyListJob( GpgME::Context * context ) + : KeyListJob( QGpgME::EventLoopInteractor::instance(), "Kleo::QGpgMEKeyListJob" ), + QGpgMEJob( this, context ), + mResult(), mSecretOnly( false ) +{ + assert( context ); +} + +Kleo::QGpgMEKeyListJob::~QGpgMEKeyListJob() { +} + +void Kleo::QGpgMEKeyListJob::setup( const QStringList & pats, bool secretOnly ) { + assert( !patterns() ); + + mSecretOnly = secretOnly; + setPatterns( pats ); +} + +GpgME::Error Kleo::QGpgMEKeyListJob::start( const QStringList & pats, bool secretOnly ) { + setup( pats, secretOnly ); + + hookupContextToEventLoopInteractor(); + connect( QGpgME::EventLoopInteractor::instance(), + SIGNAL(nextKeyEventSignal(GpgME::Context*,const GpgME::Key&)), + SLOT(slotNextKeyEvent(GpgME::Context*,const GpgME::Key&)) ); + + // The communication channel between gpgme and gpgsm is limited in + // the number of patterns that can be transported, but they won't + // say to how much, so we need to find out ourselves if we get a + // LINE_TOO_LONG error back... + + // We could of course just feed them single patterns, and that would + // probably be easier, but the performance penalty would currently + // be noticable. + + while ( const GpgME::Error err = mCtx->startKeyListing( patterns(), mSecretOnly ) ) { + if ( err.code() == GPG_ERR_LINE_TOO_LONG ) { + setChunkSize( chunkSize()/2 ); + if ( chunkSize() >= 1 ) { + kdDebug(5150) << "QGpgMEKeyListJob::start(): retrying keylisting with chunksize " << chunkSize() << endl; + continue; + } + } + deleteLater(); + mResult = GpgME::KeyListResult( 0, err ); + return err; + } + mResult = GpgME::KeyListResult( 0, 0 ); + return 0; +} + +GpgME::KeyListResult Kleo::QGpgMEKeyListJob::exec( const QStringList & pats, bool secretOnly, std::vector & keys ) { + setup( pats, secretOnly ); + + // The communication channel between gpgme and gpgsm is limited in + // the number of patterns that can be transported, but they won't + // say to how much, so we need to find out ourselves if we get a + // LINE_TOO_LONG error back... + + // We could of course just feed them single patterns, and that would + // probably be easier, but the performance penalty would currently + // be noticable. + + for (;;) { + keys.clear(); + mResult = attemptSyncKeyListing( keys ); + if ( !mResult.error() || mResult.error().code() != GPG_ERR_LINE_TOO_LONG ) + return mResult; + // got LINE_TOO_LONG, try a smaller chunksize: + setChunkSize( chunkSize()/2 ); + if ( chunkSize() < 1 ) + // chunks smaller than one can't be -> return the error. + return mResult; + kdDebug(5150) << "QGpgMEKeyListJob::exec(): retrying keylisting with chunksize " << chunkSize() << endl; + } + kdFatal(5150) << "QGpgMEKeyListJob::exec(): Oops, this is not supposed to happen!" << endl; + return GpgME::KeyListResult(); +} + +GpgME::KeyListResult Kleo::QGpgMEKeyListJob::attemptSyncKeyListing( std::vector & keys ) { + GpgME::KeyListResult result; + for ( const char* * chunk = patterns() ; chunk ; chunk = nextChunk() ) { + + if ( const GpgME::Error err = mCtx->startKeyListing( chunk, mSecretOnly ) ) + return GpgME::KeyListResult( 0, err ); + + GpgME::Error err; + do + keys.push_back( mCtx->nextKey( err ) ); + while ( !err ); + keys.pop_back(); + result.mergeWith( mCtx->endKeyListing() ); + if ( result.error() ) + break; + } + return result; +} + +void Kleo::QGpgMEKeyListJob::slotNextKeyEvent( GpgME::Context * context, const GpgME::Key & key ) { + if ( context == mCtx ) + emit nextKey( key ); +} + +void Kleo::QGpgMEKeyListJob::slotOperationDoneEvent( GpgME::Context * context, const GpgME::Error & ) { + if ( context != mCtx ) + return; + mResult.mergeWith( mCtx->keyListResult() ); + if ( !mResult.error() ) + if ( const char* * chunk = nextChunk() ) { + if ( const GpgME::Error err = mCtx->startKeyListing( chunk, mSecretOnly ) ) + mResult.mergeWith( GpgME::KeyListResult( 0, err ) ); + else + return; + } + emit done(); + emit result( mResult ); + deleteLater(); +} + +void Kleo::QGpgMEKeyListJob::showErrorDialog( QWidget * parent, const QString & caption ) const { + if ( !mResult.error() || mResult.error().isCanceled() ) + return; + const QString msg = i18n( "

An error occurred while fetching " + "the keys from the backend:

" + "

%1

" ) + .arg( QString::fromLocal8Bit( mResult.error().asString() ) ); + KMessageBox::error( parent, msg, caption ); +} + +#include "qgpgmekeylistjob.moc" -- cgit v1.2.3