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nheko/src/main.cpp

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// SPDX-FileCopyrightText: Nheko Contributors
//
// SPDX-License-Identifier: GPL-3.0-or-later
#include <iostream>
#include <QApplication>
#include <QCommandLineParser>
#include <QDesktopServices>
#include <QDir>
#include <QFile>
#include <QFontDatabase>
#include <QGuiApplication>
#include <QLabel>
#include <QLibraryInfo>
#include <QMessageBox>
#include <QPoint>
#include <QQuickView>
#include <QScreen>
#include <QStandardPaths>
#include <QTranslator>
#include "ChatPage.h"
#include "Config.h"
#include "Logging.h"
#include "MainWindow.h"
#include "MatrixClient.h"
#include "Utils.h"
#include "config/nheko.h"
#include "singleapplication.h"
#if defined(Q_OS_MAC)
#include "emoji/MacHelper.h"
#include "notifications/Manager.h"
#endif
#ifdef GSTREAMER_AVAILABLE
#include <QAbstractEventDispatcher>
#include <gst/gst.h>
#include "voip/CallDevices.h"
#endif
#ifdef QML_DEBUGGING
#include <QQmlDebuggingEnabler>
QQmlDebuggingEnabler enabler;
#endif
#if HAVE_BACKTRACE_SYMBOLS_FD
#include <csignal>
#include <execinfo.h>
#include <fcntl.h>
#include <unistd.h>
void
stacktraceHandler(int signum)
{
std::signal(signum, SIG_DFL);
// boost::stacktrace::safe_dump_to("./nheko-backtrace.dump");
// see
// https://stackoverflow.com/questions/77005/how-to-automatically-generate-a-stacktrace-when-my-program-crashes/77336#77336
void *array[50];
int size;
// get void*'s for all entries on the stack
size = backtrace(array, 50);
// print out all the frames to stderr
fprintf(stderr, "Error: signal %d:\n", signum);
backtrace_symbols_fd(array, size, STDERR_FILENO);
int file = ::open("/tmp/nheko-crash.dump",
O_CREAT | O_WRONLY | O_TRUNC
#if defined(S_IWUSR) && defined(S_IRUSR)
,
S_IWUSR | S_IRUSR
#elif defined(S_IWRITE) && defined(S_IREAD)
,
S_IWRITE | S_IREAD
#endif
);
if (file != -1) {
constexpr char header[] = "Error: signal\n";
[[maybe_unused]] auto ret = write(file, header, std::size(header) - 1);
backtrace_symbols_fd(array, size, file);
close(file);
}
std::raise(SIGABRT);
}
void
registerSignalHandlers()
{
std::signal(SIGSEGV, &stacktraceHandler);
std::signal(SIGABRT, &stacktraceHandler);
}
#else
// No implementation for systems with no stacktrace support.
void
registerSignalHandlers()
{
}
#endif
#if defined(GSTREAMER_AVAILABLE) && (defined(Q_OS_MAC) || defined(Q_OS_WINDOWS))
GMainLoop *gloop = 0;
GThread *gthread = 0;
extern "C"
{
static gpointer glibMainLoopThreadFunc(gpointer)
{
gloop = g_main_loop_new(0, false);
g_main_loop_run(gloop);
g_main_loop_unref(gloop);
gloop = 0;
return 0;
}
} // extern "C"
#endif
QPoint
screenCenter(int width, int height)
{
// Deprecated in 5.13: QRect screenGeometry = QApplication::desktop()->screenGeometry();
QRect screenGeometry = QGuiApplication::primaryScreen()->geometry();
int x = (screenGeometry.width() - width) / 2;
int y = (screenGeometry.height() - height) / 2;
return QPoint(x, y);
}
void
createStandardDirectory(QStandardPaths::StandardLocation path)
{
auto dir = QStandardPaths::writableLocation(path);
if (!QDir().mkpath(dir)) {
throw std::runtime_error(("Unable to create state directory:" + dir).toStdString().c_str());
}
}
int
main(int argc, char *argv[])
{
QCoreApplication::setApplicationName(QStringLiteral("nheko"));
QCoreApplication::setApplicationVersion(nheko::version);
QCoreApplication::setOrganizationName(QStringLiteral("nheko"));
QCoreApplication::setAttribute(Qt::AA_DontCreateNativeWidgetSiblings);
QCoreApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
// Disable the qml disk cache by default to prevent crashes on updates. See
// https://github.com/Nheko-Reborn/nheko/issues/1383
if (qgetenv("NHEKO_ALLOW_QML_DISK_CACHE").size() == 0) {
qputenv("QML_DISABLE_DISK_CACHE", "1");
}
// this needs to be after setting the application name. Or how would we find our settings
// file then?
#if !defined(Q_OS_MACOS)
if (qgetenv("QT_SCALE_FACTOR").size() == 0) {
float factor = utils::scaleFactor();
if (factor != -1)
qputenv("QT_SCALE_FACTOR", QString::number(factor).toUtf8());
}
#endif
// This is some hacky programming, but it's necessary (AFAIK?) to get the unique config name
// parsed before the SingleApplication userdata is set.
QString userdata{QLatin1String("")};
QString matrixUri;
for (int i = 1; i < argc; ++i) {
QString arg{argv[i]};
if (arg.startsWith(QLatin1String("--profile="))) {
arg.remove(QStringLiteral("--profile="));
userdata = arg;
} else if (arg.startsWith(QLatin1String("--p="))) {
arg.remove(QStringLiteral("-p="));
userdata = arg;
} else if (arg == QLatin1String("--profile") || arg == QLatin1String("-p")) {
if (i < argc - 1) // if i is less than argc - 1, we still have a parameter
// left to process as the name
{
++i; // the next arg is the name, so increment
userdata = QString{argv[i]};
}
} else if (arg.startsWith(QLatin1String("matrix:"))) {
matrixUri = arg;
}
}
SingleApplication app(argc,
argv,
true,
SingleApplication::Mode::User | SingleApplication::Mode::ExcludeAppPath |
SingleApplication::Mode::ExcludeAppVersion |
SingleApplication::Mode::SecondaryNotification,
100,
userdata == QLatin1String("default") ? QLatin1String("") : userdata);
QCommandLineParser parser;
parser.addHelpOption();
parser.addVersionOption();
QCommandLineOption debugOption(QStringLiteral("debug"),
QObject::tr("Alias for '--log-level trace'."));
parser.addOption(debugOption);
QCommandLineOption logLevel(
QStringList() << QStringLiteral("l") << QStringLiteral("log-level"),
QObject::tr("Set the global log level, or a comma-separated list of <component>=<level> "
"pairs, or both. For example, to set the default log level to 'warn' but "
"disable logging for the 'ui' component, pass 'warn,ui=off'. "
"levels:{trace,debug,info,warning,error,critical,off} "
"components:{crypto,db,mtx,net,qml,ui}"),
QObject::tr("level"));
parser.addOption(logLevel);
QCommandLineOption logType(
QStringList() << QStringLiteral("L") << QStringLiteral("log-type"),
QObject::tr("Set the log output type. A comma-separated list is allowed. "
"The default is 'file,stderr'. types:{file,stderr,none}"),
QObject::tr("type"));
parser.addOption(logType);
// This option is not actually parsed via Qt due to the need to parse it before the app
// name is set. It only exists to keep Qt from complaining about the --profile/-p
// option and thereby crashing the app.
QCommandLineOption configName(
QStringList() << QStringLiteral("p") << QStringLiteral("profile"),
QCoreApplication::tr("Create a unique profile which allows you to log into several "
"accounts at the same time and start multiple instances of nheko."),
QCoreApplication::tr("profile"),
QCoreApplication::tr("profile name"));
parser.addOption(configName);
parser.process(app);
// This check needs to happen _after_ process(), so that we actually print help for --help when
// Nheko is already running.
if (app.isSecondary()) {
std::cout << "Sending Matrix URL to main application: " << matrixUri.toStdString()
<< std::endl;
// open uri in main instance
app.sendMessage(matrixUri.toUtf8());
return 0;
}
#if !defined(Q_OS_MAC)
app.setWindowIcon(QIcon::fromTheme(QStringLiteral("nheko"), QIcon{":/logos/nheko.png"}));
#endif
#ifdef NHEKO_FLATPAK
app.setDesktopFileName(QStringLiteral("io.github.NhekoReborn.Nheko"));
#else
app.setDesktopFileName(QStringLiteral("nheko"));
#endif
http::init();
createStandardDirectory(QStandardPaths::CacheLocation);
createStandardDirectory(QStandardPaths::AppDataLocation);
registerSignalHandlers();
#if defined(GSTREAMER_AVAILABLE) && (defined(Q_OS_MAC) || defined(Q_OS_WINDOWS))
// If the version of Qt we're running in does not use GLib, we need to
// start a GMainLoop so that gstreamer can dispatch events.
const QMetaObject *mo = QAbstractEventDispatcher::instance(qApp->thread())->metaObject();
if (gloop == 0 && strcmp(mo->className(), "QEventDispatcherGlib") != 0 &&
strcmp(mo->superClass()->className(), "QEventDispatcherGlib") != 0) {
gthread = g_thread_new(0, glibMainLoopThreadFunc, 0);
}
#endif
try {
QString level;
if (parser.isSet(logLevel)) {
level = parser.value(logLevel);
} else if (parser.isSet(debugOption)) {
level = "trace";
} else {
level = qEnvironmentVariable("NHEKO_LOG_LEVEL");
}
QStringList targets =
(parser.isSet(logType) ? parser.value(logType)
: qEnvironmentVariable("NHEKO_LOG_TYPE", "file,stderr"))
.split(',', Qt::SkipEmptyParts);
targets.removeAll("none");
bool to_stderr = bool(targets.removeAll("stderr"));
QString path = targets.removeAll("file")
? QDir(QStandardPaths::writableLocation(QStandardPaths::CacheLocation))
.filePath("nheko.log")
: QLatin1String("");
if (!targets.isEmpty()) {
std::cerr << "Invalid log type '" << targets.first().toStdString().c_str() << "'"
<< std::endl;
std::exit(1);
}
nhlog::init(level, path, to_stderr);
} catch (const spdlog::spdlog_ex &ex) {
std::cerr << "Log initialization failed: " << ex.what() << std::endl;
std::exit(1);
}
if (parser.isSet(configName))
UserSettings::initialize(parser.value(configName));
else
UserSettings::initialize(std::nullopt);
auto settings = UserSettings::instance().toWeakRef();
QFont font;
QString userFontFamily = settings.lock()->font();
if (!userFontFamily.isEmpty() && userFontFamily != QLatin1String("default")) {
font.setFamily(userFontFamily);
}
font.setPointSizeF(settings.lock()->fontSize());
app.setFont(font);
settings.lock()->applyTheme();
if (QLocale().language() == QLocale::C)
QLocale::setDefault(QLocale(QLocale::English, QLocale::UnitedKingdom));
QTranslator qtTranslator;
qtTranslator.load(QLocale(),
QStringLiteral("qt"),
QStringLiteral("_"),
QLibraryInfo::location(QLibraryInfo::TranslationsPath));
app.installTranslator(&qtTranslator);
QTranslator appTranslator;
appTranslator.load(
QLocale(), QStringLiteral("nheko"), QStringLiteral("_"), QStringLiteral(":/translations"));
app.installTranslator(&appTranslator);
MainWindow w;
// QQuickView w;
// Move the MainWindow to the center
// w.move(screenCenter(w.width(), w.height()));
if (!(settings.lock()->startInTray() && settings.lock()->tray()))
w.show();
QObject::connect(&app, &QApplication::aboutToQuit, &w, [&w]() {
ChatPage::instance()->removeAllNotifications();
w.saveCurrentWindowSize();
if (http::client() != nullptr) {
nhlog::net()->debug("shutting down all I/O threads & open connections");
http::client()->close(true);
nhlog::net()->debug("bye");
}
});
QObject::connect(&app, &SingleApplication::instanceStarted, &w, [&w]() {
w.show();
w.raise();
w.requestActivate();
});
// It seems like handling the message in a blocking manner is a no-go. I have no idea how to
// fix that, so just use a queued connection for now... (ASAN does not cooperate and just
// hides the crash D:)
QObject::connect(
&app,
&SingleApplication::receivedMessage,
ChatPage::instance(),
[&](quint32, QByteArray message) {
QString m = QString::fromUtf8(message);
ChatPage::instance()->handleMatrixUri(m);
},
Qt::QueuedConnection);
QMetaObject::Connection uriConnection;
if (app.isPrimary() && !matrixUri.isEmpty()) {
uriConnection = QObject::connect(ChatPage::instance(),
&ChatPage::contentLoaded,
ChatPage::instance(),
[&uriConnection, matrixUri]() {
ChatPage::instance()->handleMatrixUri(matrixUri);
QObject::disconnect(uriConnection);
});
}
QDesktopServices::setUrlHandler(
QStringLiteral("matrix"), ChatPage::instance(), "handleMatrixUri");
#if defined(Q_OS_MAC)
// Temporary solution for the emoji picker until
// nheko has a proper menu bar with more functionality.
MacHelper::initializeMenus();
// Need to set up notification delegate so users can respond to messages from within the
// notification itself.
NotificationsManager::attachToMacNotifCenter();
#endif
nhlog::ui()->info("starting nheko {}", nheko::version);
auto returnvalue = app.exec();
#ifdef GSTREAMER_AVAILABLE
CallDevices::instance().deinit();
gst_deinit();
#endif
return returnvalue;
}