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qTox is a chat, voice, video, and file transfer IM client using the encrypted peer-to-peer Tox protocol.
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qTox/src/main.cpp

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/*
Copyright © 2014-2019 by The qTox Project Contributors
This file is part of qTox, a Qt-based graphical interface for Tox.
qTox is libre 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 3 of the License, or
(at your option) any later version.
qTox 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 qTox. If not, see <http://www.gnu.org/licenses/>.
*/
#include "audio/audio.h"
#include "src/ipc.h"
#include "src/net/toxuri.h"
#include "src/nexus.h"
#include "src/persistence/profile.h"
#include "src/persistence/settings.h"
#include "src/persistence/toxsave.h"
#include "src/video/camerasource.h"
#include "src/widget/loginscreen.h"
#include "src/widget/translator.h"
#include "widget/widget.h"
#include <QApplication>
#include <QCommandLineParser>
#include <QDateTime>
#include <QDebug>
#include <QDir>
#include <QFile>
#include <QFontDatabase>
#include <QMutex>
#include <QMutexLocker>
#include <QtWidgets/QMessageBox>
#include <ctime>
#include <sodium.h>
#include <stdio.h>
#if defined(Q_OS_UNIX)
#include "platform/posixsignalnotifier.h"
#endif
#ifdef LOG_TO_FILE
static QAtomicPointer<FILE> logFileFile = nullptr;
static QList<QByteArray>* logBuffer =
new QList<QByteArray>(); // Store log messages until log file opened
QMutex* logBufferMutex = new QMutex();
#endif
void cleanup()
{
// force save early even though destruction saves, because Windows OS will
// close qTox before cleanup() is finished if logging out or shutting down,
// once the top level window has exited, which occurs in ~Widget within
// ~Nexus. Re-ordering Nexus destruction is not trivial.
auto& s = Settings::getInstance();
s.saveGlobal();
s.savePersonal();
s.sync();
Nexus::destroyInstance();
CameraSource::destroyInstance();
Settings::destroyInstance();
qDebug() << "Cleanup success";
#ifdef LOG_TO_FILE
#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
FILE* f = logFileFile.loadRelaxed();
#else
FILE* f = logFileFile.load();
#endif
if (f != nullptr) {
fclose(f);
#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
logFileFile.storeRelaxed(nullptr); // atomically disable logging to file
#else
logFileFile.store(nullptr); // atomically disable logging to file
#endif
}
#endif
}
void logMessageHandler(QtMsgType type, const QMessageLogContext& ctxt, const QString& msg)
{
// Silence qWarning spam due to bug in QTextBrowser (trying to open a file for base64 images)
if (ctxt.function == QString("virtual bool QFSFileEngine::open(QIODevice::OpenMode)")
&& msg == QString("QFSFileEngine::open: No file name specified"))
return;
QRegExp snoreFilter{QStringLiteral("Snore::Notification.*was already closed")};
if (type == QtWarningMsg
&& msg.contains(snoreFilter))
{
// snorenotify logs this when we call requestCloseNotification correctly. The behaviour still works, so we'll
// just mask the warning for now. The issue has been reported upstream:
// https://github.com/qTox/qTox/pull/6073#pullrequestreview-420748519
return;
}
QString file = ctxt.file;
// We're not using QT_MESSAGELOG_FILE here, because that can be 0, NULL, or
// nullptr in release builds.
QString path = QString(__FILE__);
path = path.left(path.lastIndexOf('/') + 1);
if (file.startsWith(path)) {
file = file.mid(path.length());
}
// Time should be in UTC to save user privacy on log sharing
QTime time = QDateTime::currentDateTime().toUTC().time();
QString LogMsg =
QString("[%1 UTC] %2:%3 : ").arg(time.toString("HH:mm:ss.zzz")).arg(file).arg(ctxt.line);
switch (type) {
case QtDebugMsg:
LogMsg += "Debug";
break;
case QtInfoMsg:
LogMsg += "Info";
break;
case QtWarningMsg:
LogMsg += "Warning";
break;
case QtCriticalMsg:
LogMsg += "Critical";
break;
case QtFatalMsg:
LogMsg += "Fatal";
break;
default:
break;
}
LogMsg += ": " + msg + "\n";
QByteArray LogMsgBytes = LogMsg.toUtf8();
fwrite(LogMsgBytes.constData(), 1, LogMsgBytes.size(), stderr);
#ifdef LOG_TO_FILE
#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
FILE* logFilePtr = logFileFile.loadRelaxed(); // atomically load the file pointer
#else
FILE* logFilePtr = logFileFile.load(); // atomically load the file pointer
#endif
if (!logFilePtr) {
logBufferMutex->lock();
if (logBuffer)
logBuffer->append(LogMsgBytes);
logBufferMutex->unlock();
} else {
logBufferMutex->lock();
if (logBuffer) {
// empty logBuffer to file
foreach (QByteArray msg, *logBuffer)
fwrite(msg.constData(), 1, msg.size(), logFilePtr);
delete logBuffer; // no longer needed
logBuffer = nullptr;
}
logBufferMutex->unlock();
fwrite(LogMsgBytes.constData(), 1, LogMsgBytes.size(), logFilePtr);
fflush(logFilePtr);
}
#endif
}
static std::unique_ptr<ToxURIDialog> uriDialog;
static bool toxURIEventHandler(const QByteArray& eventData)
{
if (!eventData.startsWith("tox:")) {
return false;
}
if (!uriDialog) {
return false;
}
uriDialog->handleToxURI(eventData);
return true;
}
int main(int argc, char* argv[])
{
#if (QT_VERSION >= QT_VERSION_CHECK(5, 6, 0))
QGuiApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
QGuiApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
#endif
qInstallMessageHandler(logMessageHandler);
// initialize random number generator
#if (QT_VERSION < QT_VERSION_CHECK(5, 15, 0))
qsrand(time(nullptr));
#endif
std::unique_ptr<QApplication> a(new QApplication(argc, argv));
#if defined(Q_OS_UNIX)
// PosixSignalNotifier is used only for terminating signals,
// so it's connected directly to quit() without any filtering.
QObject::connect(&PosixSignalNotifier::globalInstance(), &PosixSignalNotifier::activated,
a.get(), &QApplication::quit);
PosixSignalNotifier::watchCommonTerminatingSignals();
#endif
a->setApplicationName("qTox");
#if QT_VERSION >= QT_VERSION_CHECK(5, 7, 0)
a->setDesktopFileName("io.github.qtox.qTox");
#endif
a->setApplicationVersion("\nGit commit: " + QString(GIT_VERSION));
// Install Unicode 6.1 supporting font
// Keep this as close to the beginning of `main()` as possible, otherwise
// on systems that have poor support for Unicode qTox will look bad.
if (QFontDatabase::addApplicationFont("://font/DejaVuSans.ttf") == -1) {
qWarning() << "Couldn't load font";
}
#if (QT_VERSION < QT_VERSION_CHECK(5, 15, 0))
qsrand(time(nullptr));
#endif
Settings& settings = Settings::getInstance();
QString locale = settings.getTranslation();
// We need to init the resources in the translations_library explicitely.
// See https://doc.qt.io/qt-5/resources.html#using-resources-in-a-library
Q_INIT_RESOURCE(translations);
Translator::translate(locale);
// Process arguments
QCommandLineParser parser;
parser.setApplicationDescription("qTox, version: " + QString(GIT_VERSION));
parser.addHelpOption();
parser.addVersionOption();
parser.addPositionalArgument("uri", QObject::tr("Tox URI to parse"));
parser.addOption(
QCommandLineOption(QStringList() << "p"
<< "profile",
QObject::tr("Starts new instance and loads specified profile."),
QObject::tr("profile")));
parser.addOption(
QCommandLineOption(QStringList() << "l"
<< "login",
QObject::tr("Starts new instance and opens the login screen.")));
parser.addOption(QCommandLineOption(QStringList() << "I"
<< "IPv6",
QObject::tr("Sets IPv6 <on>/<off>. Default is ON."),
QObject::tr("on/off")));
parser.addOption(QCommandLineOption(QStringList() << "U"
<< "UDP",
QObject::tr("Sets UDP <on>/<off>. Default is ON."),
QObject::tr("on/off")));
parser.addOption(
QCommandLineOption(QStringList() << "L"
<< "LAN",
QObject::tr(
"Sets LAN discovery <on>/<off>. UDP off overrides. Default is ON."),
QObject::tr("on/off")));
parser.addOption(QCommandLineOption(QStringList() << "P"
<< "proxy",
QObject::tr("Sets proxy settings. Default is NONE."),
QObject::tr("(SOCKS5/HTTP/NONE):(ADDRESS):(PORT)")));
parser.process(*a);
uint32_t profileId = settings.getCurrentProfileId();
IPC ipc(profileId);
if (ipc.isAttached()) {
QObject::connect(&settings, &Settings::currentProfileIdChanged, &ipc, &IPC::setProfileId);
} else {
qWarning() << "Can't init IPC, maybe we're in a jail? Continuing with reduced multi-client functionality.";
}
// For the auto-updater
if (sodium_init() < 0) {
qCritical() << "Can't init libsodium";
return EXIT_FAILURE;
}
#ifdef LOG_TO_FILE
QString logFileDir = settings.getPaths().getAppCacheDirPath();
QDir(logFileDir).mkpath(".");
QString logfile = logFileDir + "qtox.log";
FILE* mainLogFilePtr = fopen(logfile.toLocal8Bit().constData(), "a");
// Trim log file if over 1MB
if (QFileInfo(logfile).size() > 1000000) {
qDebug() << "Log file over 1MB, rotating...";
// close old logfile (need for windows)
if (mainLogFilePtr)
fclose(mainLogFilePtr);
QDir dir(logFileDir);
// Check if log.1 already exists, and if so, delete it
if (dir.remove(logFileDir + "qtox.log.1"))
qDebug() << "Removed old log successfully";
else
qWarning() << "Unable to remove old log file";
if (!dir.rename(logFileDir + "qtox.log", logFileDir + "qtox.log.1"))
qCritical() << "Unable to move logs";
// open a new logfile
mainLogFilePtr = fopen(logfile.toLocal8Bit().constData(), "a");
}
if (!mainLogFilePtr)
qCritical() << "Couldn't open logfile" << logfile;
#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
logFileFile.storeRelaxed(mainLogFilePtr); // atomically set the logFile
#else
logFileFile.store(mainLogFilePtr); // atomically set the logFile
#endif
#endif
// Windows platform plugins DLL hell fix
QCoreApplication::addLibraryPath(QCoreApplication::applicationDirPath());
a->addLibraryPath("platforms");
qDebug() << "commit: " << GIT_VERSION;
QString profileName;
bool autoLogin = settings.getAutoLogin();
uint32_t ipcDest = 0;
bool doIpc = ipc.isAttached();
QString eventType, firstParam;
if (parser.isSet("p")) {
profileName = parser.value("p");
if (!Profile::exists(profileName)) {
qWarning() << "-p profile" << profileName + ".tox"
<< "doesn't exist, opening login screen";
doIpc = false;
autoLogin = false;
} else {
ipcDest = Settings::makeProfileId(profileName);
autoLogin = true;
}
} else if (parser.isSet("l")) {
doIpc = false;
autoLogin = false;
} else {
profileName = settings.getCurrentProfile();
}
if (parser.positionalArguments().empty()) {
eventType = "activate";
} else {
firstParam = parser.positionalArguments()[0];
// Tox URIs. If there's already another qTox instance running, we ask it to handle the URI
// and we exit
// Otherwise we start a new qTox instance and process it ourselves
if (firstParam.startsWith("tox:")) {
eventType = "uri";
} else if (firstParam.endsWith(".tox")) {
eventType = "save";
} else {
qCritical() << "Invalid argument";
return EXIT_FAILURE;
}
}
if (doIpc && !ipc.isCurrentOwner()) {
time_t event = ipc.postEvent(eventType, firstParam.toUtf8(), ipcDest);
// If someone else processed it, we're done here, no need to actually start qTox
if (ipc.waitUntilAccepted(event, 2)) {
if (eventType == "activate") {
qDebug()
<< "Another qTox instance is already running. If you want to start a second "
"instance, please open login screen (qtox -l) or start with a profile (qtox "
"-p <profile name>).";
} else {
qDebug() << "Event" << eventType << "was handled by other client.";
}
return EXIT_SUCCESS;
}
}
if (!Settings::verifyProxySettings(parser)) {
return -1;
}
// TODO(sudden6): remove once we get rid of Nexus
Nexus& nexus = Nexus::getInstance();
// TODO(kriby): Consider moving application initializing variables into a globalSettings object
// note: Because Settings is shouldering global settings as well as model specific ones it
// cannot be integrated into a central model object yet
nexus.setSettings(&settings);
// Autologin
// TODO (kriby): Shift responsibility of linking views to model objects from nexus
// Further: generate view instances separately (loginScreen, mainGUI, audio)
Profile* profile = nullptr;
if (autoLogin && Profile::exists(profileName) && !Profile::isEncrypted(profileName)) {
profile = Profile::loadProfile(profileName, QString(), settings, &parser);
if (!profile) {
QMessageBox::information(nullptr, QObject::tr("Error"),
QObject::tr("Failed to load profile automatically."));
}
}
if (profile) {
nexus.bootstrapWithProfile(profile);
} else {
nexus.setParser(&parser);
int returnval = nexus.showLogin(profileName);
if (returnval == QDialog::Rejected) {
return -1;
}
profile = nexus.getProfile();
}
uriDialog = std::unique_ptr<ToxURIDialog>(new ToxURIDialog(nullptr, profile->getCore()));
if (ipc.isAttached()) {
// Start to accept Inter-process communication
ipc.registerEventHandler("uri", &toxURIEventHandler);
ipc.registerEventHandler("save", &toxSaveEventHandler);
ipc.registerEventHandler("activate", &toxActivateEventHandler);
}
// Event was not handled by already running instance therefore we handle it ourselves
if (eventType == "uri") {
uriDialog->handleToxURI(firstParam.toUtf8());
} else if (eventType == "save") {
handleToxSave(firstParam.toUtf8());
}
QObject::connect(a.get(), &QApplication::aboutToQuit, cleanup);
// Run
int errorcode = a->exec();
qDebug() << "Exit with status" << errorcode;
return errorcode;
}