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/*
* Bittorrent Client using Qt and libtorrent.
* Copyright (C) 2014 Vladimir Golovnev <glassez@yandex.ru>
* Copyright (C) 2006 Christophe Dumez
*
* This program 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.
*
* This program 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 this program with the OpenSSL project's "OpenSSL" library (or with
* modified versions of it that use the same license as the "OpenSSL" library),
* and distribute the linked executables. You must obey the GNU General Public
* License in all respects for all of the code used other than "OpenSSL". If you
* modify file(s), you may extend this exception to your version of the file(s),
* but you are not obligated to do so. If you do not wish to do so, delete this
* exception statement from your version.
*
* Contact : chris@qbittorrent.org
*/
#include <QDebug>
#include <QScopedPointer>
#include <QThread>
#ifndef DISABLE_GUI
// GUI-only includes
#include <QFont>
#include <QMessageBox>
#include <QPainter>
#include <QPen>
#include <QPushButton>
#include <QSplashScreen>
#ifdef QBT_STATIC_QT
#include <QtPlugin>
Q_IMPORT_PLUGIN(QICOPlugin)
#endif // QBT_STATIC_QT
#else
// NoGUI-only includes
#include <cstdio>
#ifdef Q_OS_UNIX
#include "unistd.h"
#endif
#endif // DISABLE_GUI
#ifdef Q_OS_UNIX
#include <signal.h>
//#include <execinfo.h>
//#include "stacktrace.h"
#endif // Q_OS_UNIX
#ifdef STACKTRACE_WIN
#include <signal.h>
#include "stacktrace_win.h"
#include "stacktrace_win_dlg.h"
#endif //STACKTRACE_WIN
#include <cstdlib>
#include <iostream>
#include "application.h"
#include "base/profile.h"
#include "base/utils/misc.h"
#include "base/preferences.h"
#include "cmdoptions.h"
#include "upgrade.h"
// Signal handlers
#if defined(Q_OS_UNIX) || defined(STACKTRACE_WIN)
void sigNormalHandler(int signum);
void sigAbnormalHandler(int signum);
// sys_signame[] is only defined in BSD
const char *sysSigName[] = {
#if defined(Q_OS_WIN)
"", "", "SIGINT", "", "SIGILL", "", "SIGABRT_COMPAT", "", "SIGFPE", "",
"", "SIGSEGV", "", "", "", "SIGTERM", "", "", "", "",
"", "SIGBREAK", "SIGABRT", "", "", "", "", "", "", "",
"", ""
#else
"", "SIGHUP", "SIGINT", "SIGQUIT", "SIGILL", "SIGTRAP", "SIGABRT", "SIGBUS", "SIGFPE", "SIGKILL",
"SIGUSR1", "SIGSEGV", "SIGUSR2", "SIGPIPE", "SIGALRM", "SIGTERM", "SIGSTKFLT", "SIGCHLD", "SIGCONT", "SIGSTOP",
"SIGTSTP", "SIGTTIN", "SIGTTOU", "SIGURG", "SIGXCPU", "SIGXFSZ", "SIGVTALRM", "SIGPROF", "SIGWINCH", "SIGIO",
"SIGPWR", "SIGUNUSED"
#endif
};
#endif
#if !defined Q_OS_WIN && !defined Q_OS_HAIKU
void reportToUser(const char* str);
#endif
void displayVersion();
bool userAgreesWithLegalNotice();
void displayBadArgMessage(const QString &message);
#if !defined(DISABLE_GUI)
void showSplashScreen();
#if defined(Q_OS_UNIX)
void setupDpi();
#endif // Q_OS_UNIX
#endif // DISABLE_GUI
// Main
int main(int argc, char *argv[])
{
// We must save it here because QApplication constructor may change it
bool isOneArg = (argc == 2);
#ifdef Q_OS_MAC
// On macOS 10.12 Sierra, Apple changed the behaviour of CFPreferencesSetValue() https://bugreports.qt.io/browse/QTBUG-56344
// Due to this, we have to move from native plist to IniFormat
macMigratePlists();
#endif
#if !defined(DISABLE_GUI) && defined(Q_OS_UNIX)
setupDpi();
#endif
try {
// Create Application
QString appId = QLatin1String("qBittorrent-") + Utils::Misc::getUserIDString();
QScopedPointer<Application> app(new Application(appId, argc, argv));
#ifndef DISABLE_GUI
// after the application object creation because we need a profile to be set already
// for the migration
migrateRSS();
#endif
const QBtCommandLineParameters params = app->commandLineArgs();
if (!params.unknownParameter.isEmpty()) {
throw CommandLineParameterError(QObject::tr("%1 is an unknown command line parameter.",
"--random-parameter is an unknown command line parameter.")
.arg(params.unknownParameter));
}
#ifndef Q_OS_WIN
if (params.showVersion) {
if (isOneArg) {
displayVersion();
return EXIT_SUCCESS;
}
throw CommandLineParameterError(QObject::tr("%1 must be the single command line parameter.")
.arg(QLatin1String("-v (or --version)")));
}
#endif
if (params.showHelp) {
if (isOneArg) {
displayUsage(argv[0]);
return EXIT_SUCCESS;
}
throw CommandLineParameterError(QObject::tr("%1 must be the single command line parameter.")
.arg(QLatin1String("-h (or --help)")));
}
// Set environment variable
if (!qputenv("QBITTORRENT", QBT_VERSION))
std::cerr << "Couldn't set environment variable...\n";
#ifndef DISABLE_GUI
if (!userAgreesWithLegalNotice())
return EXIT_SUCCESS;
#else
if (!params.shouldDaemonize
&& isatty(fileno(stdin))
&& isatty(fileno(stdout))
&& !userAgreesWithLegalNotice())
return EXIT_SUCCESS;
#endif
// Check if qBittorrent is already running for this user
if (app->isRunning()) {
#ifdef DISABLE_GUI
if (params.shouldDaemonize) {
throw CommandLineParameterError(QObject::tr("You cannot use %1: qBittorrent is already running for this user.")
.arg(QLatin1String("-d (or --daemon)")));
}
else
#endif
qDebug("qBittorrent is already running for this user.");
QThread::msleep(300);
app->sendParams(params.paramList());
return EXIT_SUCCESS;
}
#if defined(Q_OS_WIN)
// This affects only Windows apparently and Qt5.
// When QNetworkAccessManager is instantiated it regularly starts polling
// the network interfaces to see what's available and their status.
// This polling creates jitter and high ping with wifi interfaces.
// So here we disable it for lack of better measure.
// It will also spew this message in the console: QObject::startTimer: Timers cannot have negative intervals
// For more info see:
// 1. https://github.com/qbittorrent/qBittorrent/issues/4209
// 2. https://bugreports.qt.io/browse/QTBUG-40332
// 3. https://bugreports.qt.io/browse/QTBUG-46015
qputenv("QT_BEARER_POLL_TIMEOUT", QByteArray::number(-1));
#if (QT_VERSION >= QT_VERSION_CHECK(5, 10, 0))
// this is the default in Qt6
app->setAttribute(Qt::AA_DisableWindowContextHelpButton);
#endif
#endif
#if defined(Q_OS_MAC)
// Since Apple made difficult for users to set PATH, we set here for convenience.
// Users are supposed to install Homebrew Python for search function.
// For more info see issue #5571.
QByteArray path = "/usr/local/bin:";
path += qgetenv("PATH");
qputenv("PATH", path.constData());
// On OS X the standard is to not show icons in the menus
app->setAttribute(Qt::AA_DontShowIconsInMenus);
#endif
#ifndef DISABLE_GUI
if (!upgrade()) return EXIT_FAILURE;
#else
if (!upgrade(!params.shouldDaemonize
&& isatty(fileno(stdin))
&& isatty(fileno(stdout)))) return EXIT_FAILURE;
#endif
#ifdef DISABLE_GUI
if (params.shouldDaemonize) {
app.reset(); // Destroy current application
if ((daemon(1, 0) == 0)) {
app.reset(new Application(appId, argc, argv));
if (app->isRunning()) {
// Another instance had time to start.
return EXIT_FAILURE;
}
}
else {
qCritical("Something went wrong while daemonizing, exiting...");
return EXIT_FAILURE;
}
}
#else
if (!(params.noSplash || Preferences::instance()->isSplashScreenDisabled()))
showSplashScreen();
#endif
#if defined(Q_OS_UNIX) || defined(STACKTRACE_WIN)
signal(SIGINT, sigNormalHandler);
signal(SIGTERM, sigNormalHandler);
signal(SIGABRT, sigAbnormalHandler);
signal(SIGSEGV, sigAbnormalHandler);
#endif
return app->exec(params.paramList());
}
catch (CommandLineParameterError &er) {
displayBadArgMessage(er.messageForUser());
return EXIT_FAILURE;
}
}
#if !defined Q_OS_WIN && !defined Q_OS_HAIKU
void reportToUser(const char* str)
{
const size_t strLen = strlen(str);
if (write(STDERR_FILENO, str, strLen) < static_cast<ssize_t>(strLen)) {
auto dummy = write(STDOUT_FILENO, str, strLen);
Q_UNUSED(dummy);
}
}
#endif
#if defined(Q_OS_UNIX) || defined(STACKTRACE_WIN)
void sigNormalHandler(int signum)
{
#if !defined Q_OS_WIN && !defined Q_OS_HAIKU
const char msg1[] = "Catching signal: ";
const char msg2[] = "\nExiting cleanly\n";
reportToUser(msg1);
reportToUser(sysSigName[signum]);
reportToUser(msg2);
#endif // !defined Q_OS_WIN && !defined Q_OS_HAIKU
signal(signum, SIG_DFL);
qApp->exit(); // unsafe, but exit anyway
}
void sigAbnormalHandler(int signum)
{
const char *sigName = sysSigName[signum];
#if !defined Q_OS_WIN && !defined Q_OS_HAIKU
const char msg[] = "\n\n*************************************************************\n"
"Please file a bug report at http://bug.qbittorrent.org and provide the following information:\n\n"
"qBittorrent version: " QBT_VERSION "\n\n"
"Caught signal: ";
reportToUser(msg);
reportToUser(sigName);
reportToUser("\n");
// print_stacktrace(); // unsafe
#endif // !defined Q_OS_WIN && !defined Q_OS_HAIKU
#ifdef STACKTRACE_WIN
StraceDlg dlg; // unsafe
dlg.setStacktraceString(QLatin1String(sigName), straceWin::getBacktrace());
dlg.exec();
#endif // STACKTRACE_WIN
signal(signum, SIG_DFL);
raise(signum);
}
#endif // defined(Q_OS_UNIX) || defined(STACKTRACE_WIN)
#if !defined(DISABLE_GUI)
void showSplashScreen()
{
QPixmap splash_img(":/icons/skin/splash.png");
QPainter painter(&splash_img);
QString version = QBT_VERSION;
painter.setPen(QPen(Qt::white));
painter.setFont(QFont("Arial", 22, QFont::Black));
painter.drawText(224 - painter.fontMetrics().width(version), 270, version);
QSplashScreen *splash = new QSplashScreen(splash_img);
splash->show();
QTimer::singleShot(1500, splash, SLOT(deleteLater()));
qApp->processEvents();
}
#if defined(Q_OS_UNIX)
void setupDpi()
{
if (qgetenv("QT_AUTO_SCREEN_SCALE_FACTOR").isEmpty())
qputenv("QT_AUTO_SCREEN_SCALE_FACTOR", "1");
}
#endif // Q_OS_UNIX
#endif // DISABLE_GUI
void displayVersion()
{
std::cout << qPrintable(qApp->applicationName()) << " " << QBT_VERSION << std::endl;
}
void displayBadArgMessage(const QString& message)
{
QString help = QObject::tr("Run application with -h option to read about command line parameters.");
#ifdef Q_OS_WIN
QMessageBox msgBox(QMessageBox::Critical, QObject::tr("Bad command line"),
message + QLatin1Char('\n') + help, QMessageBox::Ok);
msgBox.show(); // Need to be shown or to moveToCenter does not work
msgBox.move(Utils::Misc::screenCenter(&msgBox));
msgBox.exec();
#else
std::cerr << qPrintable(QObject::tr("Bad command line: "));
std::cerr << qPrintable(message) << std::endl;
std::cerr << qPrintable(help) << std::endl;
#endif
}
bool userAgreesWithLegalNotice()
{
Preferences* const pref = Preferences::instance();
if (pref->getAcceptedLegal()) // Already accepted once
return true;
#ifdef DISABLE_GUI
std::cout << std::endl << "*** " << qPrintable(QObject::tr("Legal Notice")) << " ***" << std::endl;
std::cout << qPrintable(QObject::tr("qBittorrent is a file sharing program. When you run a torrent, its data will be made available to others by means of upload. Any content you share is your sole responsibility.\n\nNo further notices will be issued.")) << std::endl << std::endl;
std::cout << qPrintable(QObject::tr("Press %1 key to accept and continue...").arg("'y'")) << std::endl;
char ret = getchar(); // Read pressed key
if (ret == 'y' || ret == 'Y') {
// Save the answer
pref->setAcceptedLegal(true);
return true;
}
#else
QMessageBox msgBox;
msgBox.setText(QObject::tr("qBittorrent is a file sharing program. When you run a torrent, its data will be made available to others by means of upload. Any content you share is your sole responsibility.\n\nNo further notices will be issued."));
msgBox.setWindowTitle(QObject::tr("Legal notice"));
msgBox.addButton(QObject::tr("Cancel"), QMessageBox::RejectRole);
QAbstractButton *agree_button = msgBox.addButton(QObject::tr("I Agree"), QMessageBox::AcceptRole);
msgBox.show(); // Need to be shown or to moveToCenter does not work
msgBox.move(Utils::Misc::screenCenter(&msgBox));
msgBox.exec();
if (msgBox.clickedButton() == agree_button) {
// Save the answer
pref->setAcceptedLegal(true);
return true;
}
#endif
return false;
}

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