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/**************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Installer Framework.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
**************************************************************************/
#ifndef REMOTECLIENT_P_H
#define REMOTECLIENT_P_H
#include "adminauthorization.h"
#include "keepaliveobject.h"
#include "messageboxhandler.h"
#include "protocol.h"
#include "remoteclient.h"
#include "remoteobject.h"
#include "utils.h"
#include "constants.h"
#include <QCoreApplication>
#include <QElapsedTimer>
#include <QMutex>
#include <QThread>
namespace QInstaller {
class RemoteClientPrivate : public RemoteObject
{
Q_DECLARE_PUBLIC(RemoteClient)
Q_DISABLE_COPY(RemoteClientPrivate)
public:
RemoteClientPrivate(RemoteClient *parent)
: RemoteObject(QLatin1String("RemoteClientPrivate"))
, q_ptr(parent)
, m_mutex(QMutex::Recursive)
, m_startServerAs(Protocol::StartAs::User)
, m_serverStarted(false)
, m_active(false)
, m_key(QLatin1String(Protocol::DefaultAuthorizationKey))
, m_mode(Protocol::Mode::Debug)
, m_authorizationFallbackDisabled(false)
{
m_thread.setObjectName(QLatin1String("KeepAlive"));
}
~RemoteClientPrivate()
{
shutdown();
}
void shutdown()
{
m_thread.quit();
m_thread.wait();
maybeStopServer();
}
void init(const QString &socketName, const QString &key, Protocol::Mode mode,
Protocol::StartAs startAs)
{
m_socketName = socketName;
m_key = key;
m_mode = mode;
if (mode == Protocol::Mode::Production) {
m_startServerAs = startAs;
m_serverCommand = QCoreApplication::applicationFilePath();
m_serverArguments = QStringList() << QLatin1String("--") + CommandLineOptions::scStartServerLong
<< QString::fromLatin1("%1,%2,%3")
.arg(QLatin1String(Protocol::ModeProduction))
.arg(socketName)
.arg(key);
KeepAliveObject *object = new KeepAliveObject;
object->moveToThread(&m_thread);
QObject::connect(&m_thread, &QThread::started, object, &KeepAliveObject::start);
QObject::connect(&m_thread, &QThread::finished, object, &QObject::deleteLater);
m_thread.start();
} else if (mode == Protocol::Mode::Debug) {
// To be able to debug the client-server connection start and stop the server manually,
// e.g. installer --start-server DEBUG.
}
}
void setAuthorizationFallbackDisabled(bool disabled)
{
m_authorizationFallbackDisabled = disabled;
}
void maybeStartServer() {
if (m_mode == Protocol::Mode::Debug)
m_serverStarted = true; // we expect the server to be started by the developer
if (m_serverStarted)
return;
const QMutexLocker ml(&m_mutex);
if (m_serverStarted)
return;
m_serverStarted = false;
bool started = false;
if (m_startServerAs == Protocol::StartAs::SuperUser) {
started = AdminAuthorization::execute(0, m_serverCommand, m_serverArguments);
if (!started) {
if (m_authorizationFallbackDisabled) {
QMessageBox::Button res = QMessageBox::Retry;
while (res == QMessageBox::Retry && !started) {
res = MessageBoxHandler::critical(MessageBoxHandler::currentBestSuitParent(),
QLatin1String("AuthorizationError"),
QCoreApplication::translate("RemoteClient", "Cannot get authorization."),
QCoreApplication::translate("RemoteClient",
"Cannot get authorization that is needed for continuing the installation.\n\n"
"Please start the setup program as a user with the appropriate rights.\n"
"Or accept the elevation of access rights if being asked."),
QMessageBox::Abort | QMessageBox::Retry, QMessageBox::Abort);
if (res == QMessageBox::Retry)
started = AdminAuthorization::execute(0, m_serverCommand, m_serverArguments);
}
} else {
// something went wrong with authorizing, either user pressed cancel or entered
// wrong password
const QString fallback = m_serverCommand + QLatin1String(" ") + m_serverArguments
.join(QLatin1String(" "));
const QMessageBox::Button res =
MessageBoxHandler::critical(MessageBoxHandler::currentBestSuitParent(),
QLatin1String("AuthorizationError"),
QCoreApplication::translate("RemoteClient", "Cannot get authorization."),
QCoreApplication::translate("RemoteClient", "Cannot get authorization that "
"is needed for continuing the installation.\n Either abort the "
"installation or use the fallback solution by running\n\n%1\n\nas a user "
"with the appropriate rights and then clicking OK.").arg(fallback),
QMessageBox::Abort | QMessageBox::Ok, QMessageBox::Ok);
if (res == QMessageBox::Ok)
started = true;
}
}
} else {
started = QInstaller::startDetached(m_serverCommand, m_serverArguments,
QCoreApplication::applicationDirPath());
}
if (started) {
QElapsedTimer t;
t.start();
// 30 seconds waiting ought to be enough for the app to start
while ((!m_serverStarted) && (t.elapsed() < 30000))
m_serverStarted = authorize();
}
}
void maybeStopServer()
{
if (m_mode == Protocol::Mode::Debug)
m_serverStarted = false; // we never started the server in debug mode
if (!m_serverStarted)
return;
const QMutexLocker ml(&m_mutex);
if (!m_serverStarted)
return;
if (!authorize())
return;
m_serverStarted = !callRemoteMethod<bool>(QString::fromLatin1(Protocol::Shutdown));
}
private:
RemoteClient *q_ptr;
QMutex m_mutex;
QString m_socketName;
Protocol::StartAs m_startServerAs;
bool m_serverStarted;
bool m_active;
QString m_serverCommand;
QStringList m_serverArguments;
QString m_key;
QThread m_thread;
Protocol::Mode m_mode;
bool m_authorizationFallbackDisabled;
};
} // namespace QInstaller
#endif // REMOTECLIENT_P_H
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