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/* -*- mode: c++; c-basic-offset:4 -*-
crypto/encryptemailtask.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 <config-kleopatra.h>
#include "encryptemailtask.h"
#include <utils/input.h>
#include <utils/output.h>
#include <utils/kleo_assert.h>
#include <utils/auditlog.h>
#include <Libkleo/Stl_Util>
#include <Libkleo/CryptoBackendFactory>
#include <Libkleo/CryptoBackend>
#include <Libkleo/EncryptJob>
#include <gpgme++/encryptionresult.h>
#include <gpgme++/key.h>
#include <KLocalizedString>
#include <QPointer>
#include <QTextDocument> // for Qt::escape
#include <boost/bind.hpp>
using namespace Kleo;
using namespace Kleo::Crypto;
using namespace boost;
using namespace GpgME;
namespace
{
class EncryptEMailResult : public Task::Result
{
const EncryptionResult m_result;
const AuditLog m_auditLog;
public:
EncryptEMailResult(const EncryptionResult &r, const AuditLog &auditLog)
: Task::Result(), m_result(r), m_auditLog(auditLog) {}
QString overview() const Q_DECL_OVERRIDE;
QString details() const Q_DECL_OVERRIDE;
int errorCode() const Q_DECL_OVERRIDE;
QString errorString() const Q_DECL_OVERRIDE;
VisualCode code() const Q_DECL_OVERRIDE;
AuditLog auditLog() const Q_DECL_OVERRIDE;
};
QString makeResultString(const EncryptionResult &res)
{
const Error err = res.error();
if (err.isCanceled()) {
return i18n("Encryption canceled.");
}
if (err) {
return i18n("Encryption failed: %1", QString::fromLocal8Bit(err.asString()).toHtmlEscaped());
}
return i18n("Encryption succeeded.");
}
}
class EncryptEMailTask::Private
{
friend class ::Kleo::Crypto::EncryptEMailTask;
EncryptEMailTask *const q;
public:
explicit Private(EncryptEMailTask *qq);
private:
std::unique_ptr<Kleo::EncryptJob> createJob(GpgME::Protocol proto);
private:
void slotResult(const EncryptionResult &);
private:
shared_ptr<Input> input;
shared_ptr<Output> output;
std::vector<Key> recipients;
QPointer<Kleo::EncryptJob> job;
};
EncryptEMailTask::Private::Private(EncryptEMailTask *qq)
: q(qq),
input(),
output(),
job(0)
{
}
EncryptEMailTask::EncryptEMailTask(QObject *p)
: Task(p), d(new Private(this))
{
}
EncryptEMailTask::~EncryptEMailTask() {}
void EncryptEMailTask::setInput(const shared_ptr<Input> &input)
{
kleo_assert(!d->job);
kleo_assert(input);
d->input = input;
}
void EncryptEMailTask::setOutput(const shared_ptr<Output> &output)
{
kleo_assert(!d->job);
kleo_assert(output);
d->output = output;
}
void EncryptEMailTask::setRecipients(const std::vector<Key> &recipients)
{
kleo_assert(!d->job);
kleo_assert(!recipients.empty());
d->recipients = recipients;
}
Protocol EncryptEMailTask::protocol() const
{
kleo_assert(!d->recipients.empty());
return d->recipients.front().protocol();
}
QString EncryptEMailTask::label() const
{
return d->input ? d->input->label() : QString();
}
unsigned long long EncryptEMailTask::inputSize() const
{
return d->input ? d->input->size() : 0;
}
void EncryptEMailTask::doStart()
{
kleo_assert(!d->job);
kleo_assert(d->input);
kleo_assert(d->output);
kleo_assert(!d->recipients.empty());
std::unique_ptr<Kleo::EncryptJob> job = d->createJob(protocol());
kleo_assert(job.get());
job->start(d->recipients,
d->input->ioDevice(), d->output->ioDevice(),
/*alwaysTrust=*/true);
d->job = job.release();
}
void EncryptEMailTask::cancel()
{
if (d->job) {
d->job->slotCancel();
}
}
std::unique_ptr<Kleo::EncryptJob> EncryptEMailTask::Private::createJob(GpgME::Protocol proto)
{
const CryptoBackend::Protocol *const backend = CryptoBackendFactory::instance()->protocol(proto);
kleo_assert(backend);
bool shouldArmor = (proto == OpenPGP || q->asciiArmor()) && !output->binaryOpt();
std::unique_ptr<Kleo::EncryptJob> encryptJob(backend->encryptJob(shouldArmor, /*textmode=*/false));
kleo_assert(encryptJob.get());
if (proto == CMS && !q->asciiArmor() && !output->binaryOpt()) {
encryptJob->setOutputIsBase64Encoded(true);
}
connect(encryptJob.get(), SIGNAL(progress(QString,int,int)),
q, SLOT(setProgress(QString,int,int)));
connect(encryptJob.get(), SIGNAL(result(GpgME::EncryptionResult,QByteArray)),
q, SLOT(slotResult(GpgME::EncryptionResult)));
return encryptJob;
}
void EncryptEMailTask::Private::slotResult(const EncryptionResult &result)
{
const Job *const job = qobject_cast<const Job *>(q->sender());
if (result.error().code()) {
output->cancel();
} else {
output->finalize();
}
q->emitResult(shared_ptr<Result>(new EncryptEMailResult(result, AuditLog::fromJob(job))));
}
QString EncryptEMailResult::overview() const
{
return makeOverview(makeResultString(m_result));
}
QString EncryptEMailResult::details() const
{
return QString();
}
int EncryptEMailResult::errorCode() const
{
return m_result.error().encodedError();
}
QString EncryptEMailResult::errorString() const
{
return hasError() ? makeResultString(m_result) : QString();
}
AuditLog EncryptEMailResult::auditLog() const
{
return m_auditLog;
}
Task::Result::VisualCode EncryptEMailResult::code() const
{
if (m_result.error().isCanceled()) {
return Warning;
}
return m_result.error().code() ? NeutralError : NeutralSuccess;
}
#include "moc_encryptemailtask.cpp"

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