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/* -*- mode: c++; c-basic-offset:4 -*-
uiserver/signemailtask.cpp
This file is part of Kleopatra, the KDE keymanager
Copyright (c) 2007 Klarälvdalens Datakonsult AB
Kleopatra 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.
Kleopatra 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.
*/
#include "signemailtask.h"
#include "kleo-assuan.h"
#include "input.h"
#include "output.h"
#include <utils/stl_util.h>
#include <kleo/cryptobackendfactory.h>
#include <kleo/cryptobackend.h>
#include <kleo/signjob.h>
#include <gpgme++/signingresult.h>
#include <gpgme++/key.h>
#include <KLocale>
#include <QPointer>
#include <QTextDocument> // for Qt::escape
#include <boost/bind.hpp>
using namespace Kleo;
using namespace boost;
using namespace GpgME;
namespace {
class SignEMailResult : public Task::Result {
const SigningResult m_result;
public:
explicit SignEMailResult( const SigningResult & r )
: Task::Result(), m_result( r ) {}
/* reimp */ QString overview() const;
/* reimp */ QString details() const;
};
static QString makeErrorString( const SigningResult & result ) {
const Error err = result.error();
assuan_assert( err || err.isCanceled() );
if ( err.isCanceled() )
return i18n("Signing canceled.");
else // if ( err )
return i18n("Signing failed: %1.", Qt::escape( QString::fromLocal8Bit( err.asString() ) ) );
}
}
class SignEMailTask::Private {
friend class ::Kleo::SignEMailTask;
SignEMailTask * const q;
public:
explicit Private( SignEMailTask * qq );
private:
std::auto_ptr<Kleo::SignJob> createJob( GpgME::Protocol proto );
private:
void slotResult( const SigningResult & );
private:
shared_ptr<Input> input;
shared_ptr<Output> output;
std::vector<Key> signers;
bool detached;
QString micAlg;
QPointer<Kleo::SignJob> job;
};
SignEMailTask::Private::Private( SignEMailTask * qq )
: q( qq ),
input(),
output(),
signers(),
detached( false ),
micAlg(),
job( 0 )
{
}
SignEMailTask::SignEMailTask( QObject * p )
: Task( p ), d( new Private( this ) )
{
}
SignEMailTask::~SignEMailTask() {}
void SignEMailTask::setInput( const shared_ptr<Input> & input ) {
assuan_assert( !d->job );
assuan_assert( input );
d->input = input;
}
void SignEMailTask::setOutput( const shared_ptr<Output> & output ) {
assuan_assert( !d->job );
assuan_assert( output );
d->output = output;
}
void SignEMailTask::setSigners( const std::vector<Key> & signers ) {
assuan_assert( !d->job );
assuan_assert( !signers.empty() );
d->signers = signers;
}
void SignEMailTask::setDetachedSignature( bool detached ) {
assuan_assert( !d->job );
d->detached = detached;
}
Protocol SignEMailTask::protocol() const {
assuan_assert( !d->signers.empty() );
return d->signers.front().protocol();
}
void SignEMailTask::start() {
assuan_assert( !d->job );
assuan_assert( d->input );
assuan_assert( d->output );
assuan_assert( !d->signers.empty() );
d->micAlg.clear();
std::auto_ptr<Kleo::SignJob> job = d->createJob( protocol() );
assuan_assert( job.get() );
job->start( d->signers,
d->input->ioDevice(), d->output->ioDevice(),
d->detached ? GpgME::Detached : GpgME::NormalSignatureMode );
d->job = job.release();
}
void SignEMailTask::cancel() {
if ( d->job )
d->job->slotCancel();
}
std::auto_ptr<Kleo::SignJob> SignEMailTask::Private::createJob( GpgME::Protocol proto ) {
const CryptoBackend::Protocol * const backend = CryptoBackendFactory::instance()->protocol( proto );
assuan_assert( backend );
std::auto_ptr<Kleo::SignJob> signJob( backend->signJob( /*armor=*/true, /*textmode=*/false ) );
assuan_assert( signJob.get() );
connect( signJob.get(), SIGNAL(progress(QString,int,int)),
q, SIGNAL(progress(QString,int,int)) );
connect( signJob.get(), SIGNAL(result(GpgME::SigningResult,QByteArray)),
q, SLOT(slotResult(GpgME::SigningResult)) );
return signJob;
}
static QString collect_micalgs( const GpgME::SigningResult & result, GpgME::Protocol proto ) {
const std::vector<GpgME::CreatedSignature> css = result.createdSignatures();
QStringList micalgs;
std::transform( css.begin(), css.end(),
std::back_inserter( micalgs ),
bind( &QString::toLower, bind( &QString::fromLatin1, bind( &GpgME::CreatedSignature::hashAlgorithmAsString, _1 ), -1 ) ) );
if ( proto == GpgME::OpenPGP )
for ( QStringList::iterator it = micalgs.begin(), end = micalgs.end() ; it != end ; ++it )
it->prepend( "pgp-" );
micalgs.sort();
micalgs.erase( std::unique( micalgs.begin(), micalgs.end() ), micalgs.end() );
return micalgs.join( QLatin1String(",") );
}
void SignEMailTask::Private::slotResult( const SigningResult & result ) {
if ( result.error().code() ) {
output->cancel();
emit q->error( result.error(), makeErrorString( result ) );
} else {
output->finalize();
micAlg = collect_micalgs( result, q->protocol() );
emit q->result( shared_ptr<Result>( new SignEMailResult( result ) ) );
}
}
QString SignEMailTask::micAlg() const {
return d->micAlg;
}
QString SignEMailResult::overview() const {
return i18n("Not yet implemented");
}
QString SignEMailResult::details() const {
return i18n("Not yet implemented");
}
#include "moc_signemailtask.cpp"

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