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/*
chiasmusjob.cpp
This file is part of libkleopatra, the KDE keymanagement library
Copyright (c) 2005 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 <config.h>
#endif
#include "chiasmusjob.h"
#include "chiasmusbackend.h"
#include "symcryptrunprocessbase.h"
#include "kleo/cryptoconfig.h"
#include "ui/passphrasedialog.h"
#include <gpg-error.h>
#include <kshell.h>
#include <klocale.h>
#include <kdebug.h>
#include <kmessagebox.h>
#include <qtimer.h>
#include <qfileinfo.h>
#include <qvariant.h>
#include <memory>
#include <cassert>
Kleo::ChiasmusJob::ChiasmusJob( Mode mode )
: Kleo::SpecialJob( 0, 0 ),
mSymCryptRun( 0 ),
mError( 0 ),
mCanceled( false ),
mTimeout( false ),
mMode( mode )
{
}
Kleo::ChiasmusJob::~ChiasmusJob() {}
GpgME::Error Kleo::ChiasmusJob::setup() {
if ( !checkPreconditions() )
return mError = gpg_error( GPG_ERR_INV_VALUE );
const Kleo::CryptoConfigEntry * class_
= ChiasmusBackend::instance()->config()->entry( "Chiasmus", "General", "symcryptrun-class" );
const Kleo::CryptoConfigEntry * chiasmus
= ChiasmusBackend::instance()->config()->entry( "Chiasmus", "General", "path" );
const Kleo::CryptoConfigEntry * timeoutEntry
= ChiasmusBackend::instance()->config()->entry( "Chiasmus", "General", "timeout" );
if ( !class_ || !chiasmus || !timeoutEntry )
return mError = gpg_error( GPG_ERR_INTERNAL );
mSymCryptRun = new SymCryptRunProcessBase( class_->stringValue(),
KShell::tildeExpand( chiasmus->urlValue().path() ),
mKey, mOptions,
mMode == Encrypt
? SymCryptRunProcessBase::Encrypt
: SymCryptRunProcessBase::Decrypt,
this, "symcryptrun" );
QTimer::singleShot( timeoutEntry->uintValue() * 1000, this,
SLOT( slotTimeout() ) );
return 0;
}
namespace {
struct LaterDeleter {
QObject * _this;
LaterDeleter( QObject * o ) : _this( o ) {}
~LaterDeleter() { if ( _this ) _this->deleteLater(); }
void disable() { _this = 0; }
};
}
GpgME::Error Kleo::ChiasmusJob::start() {
LaterDeleter d( this );
if ( const GpgME::Error err = setup() )
return mError = err;
connect( mSymCryptRun, SIGNAL(processExited(KProcess*)),
this, SLOT(slotProcessExited(KProcess*)) );
if ( !mSymCryptRun->launch( mInput ) )
return mError = gpg_error( GPG_ERR_ENOENT ); // what else?
d.disable();
return mError = 0;
}
GpgME::Error Kleo::ChiasmusJob::slotProcessExited( KProcess * proc ) {
if ( proc != mSymCryptRun )
mError = gpg_error( GPG_ERR_INTERNAL );
else if ( mCanceled )
mError = gpg_error( GPG_ERR_CANCELED );
else if ( mTimeout )
mError = gpg_error( GPG_ERR_TIMEOUT );
else if ( !proc->normalExit() )
mError = gpg_error( GPG_ERR_GENERAL );
else
switch ( proc->exitStatus() ) {
case 0: // success
mOutput = mSymCryptRun->output();
mError = 0;
break;
default:
case 1: // Some error occured
mStderr = mSymCryptRun->stdErr();
mError = gpg_error( GPG_ERR_GENERAL );
break;
case 2: // No valid passphrase was provided
mError = gpg_error( GPG_ERR_INV_PASSPHRASE );
break;
case 3: // Canceled
mError = gpg_error( GPG_ERR_CANCELED );
break;
}
const Kleo::CryptoConfigEntry * showOutput
= ChiasmusBackend::instance()->config()->entry( "Chiasmus", "General", "show-output" );
if ( showOutput && showOutput->boolValue() ) {
showChiasmusOutput();
}
emit done();
emit SpecialJob::result( mError, QVariant( mOutput ) );
return mError;
}
void Kleo::ChiasmusJob::showChiasmusOutput() {
kdDebug() << k_funcinfo << endl;
if ( mStderr.isEmpty() )
return;
KMessageBox::information( 0 /*how to get a parent widget?*/,
mStderr,
i18n( "Output from chiasmus" ) );
}
GpgME::Error Kleo::ChiasmusJob::exec() {
if ( const GpgME::Error err = setup() )
return mError = err;
if ( !mSymCryptRun->launch( mInput, KProcess::Block ) ) {
delete mSymCryptRun; mSymCryptRun = 0;
return mError = gpg_error( GPG_ERR_ENOENT ); // what else?
}
const GpgME::Error err = slotProcessExited( mSymCryptRun );
delete mSymCryptRun; mSymCryptRun = 0;
return err;
}
bool Kleo::ChiasmusJob::checkPreconditions() const {
return !mKey.isEmpty();
}
void Kleo::ChiasmusJob::slotCancel() {
if ( mSymCryptRun )
mSymCryptRun->kill();
mCanceled = true;
}
void Kleo::ChiasmusJob::slotTimeout() {
if ( !mSymCryptRun )
return;
mSymCryptRun->kill();
mTimeout = true;
}
void Kleo::ChiasmusJob::showErrorDialog( QWidget * parent, const QString & caption ) const {
if ( !mError )
return;
if ( mError.isCanceled() )
return;
const QString msg = ( mMode == Encrypt
? i18n( "Encryption failed: %1" )
: i18n( "Decryption failed: %1" ) )
.arg( QString::fromLocal8Bit( mError.asString() ) );
if ( !mStderr.isEmpty() ) {
const QString details = i18n( "The following was received on stderr:\n%1" ).arg( mStderr );
KMessageBox::detailedError( parent, msg, details, caption );
} else {
KMessageBox::error( parent, msg, caption );
}
}
#include "chiasmusjob.moc"
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