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#include <csignal>
#include <QApplication>
#include <QTimer>
#include <QTranslator>
#include <QCommandLineParser>
#include <QQuickWindow>
#include <QSystemTrayIcon>
#include <QtQml>
#include "handlers.h"
#include "qjsonmodel.h"
#include "lib/libgoshim.h"
/* Hi! I'm Troy McClure and I'll be your guide today. You probably remember me
from blockbusters like "here be dragons" and "darling, I wrote a little
contraption". */
QJsonWatch *qw = new QJsonWatch;
/* onStatusChanged is the C function that we register as a callback with CGO.
It pulls a string serialization of the context object, than we then pass
along to Qml via signals. */
void onStatusChanged() {
char *ctx = RefreshContext();
emit qw->jsonChanged(QString(ctx));
free(ctx);
}
std::string getEnv(std::string const& key)
{
char const* val = getenv(key.c_str());
return val == NULL ? std::string() : std::string(val);
}
void signalHandler(int) {
Quit();
exit(0);
}
QString getAppName(QJsonValue info, QString provider) {
for (auto p: info.toArray()) {
QJsonObject item = p.toObject();
if (item["name"] == provider) {
return item["applicationName"].toString();
}
}
return "BitmaskVPN";
}
int main(int argc, char **argv) {
signal(SIGINT, signalHandler);
Backend backend;
QApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
QApplication::setApplicationVersion(backend.getVersion());
QApplication app(argc, argv);
app.setQuitOnLastWindowClosed(false);
/* load providers json */
QFile providerJson (":/providers.json");
providerJson.open(QIODevice::ReadOnly | QIODevice::Text);
QJsonModel *providers = new QJsonModel;
QByteArray providerJsonBytes = providerJson.readAll();
providers->loadJson(providerJsonBytes);
QJsonValue defaultProvider = providers->json().object().value("default");
QJsonValue providersInfo = providers->json().object().value("providers");
QString appName = getAppName(providersInfo, defaultProvider.toString());
QApplication::setApplicationName(appName);
QCommandLineParser parser;
parser.setApplicationDescription(
appName +
QApplication::translate(
"main", ": a fast and secure VPN. Powered by Bitmask."));
parser.addHelpOption();
parser.addVersionOption();
parser.addOptions({
{
{"n", "no-systray"},
QApplication::translate("main",
"Do not show the systray icon (useful "
"together with gnome shell "
"extension, or to control VPN by other means)."),
},
{
{"w", "web-api"},
QApplication::translate(
"main",
"Enable web api."),
},
{
{"i", "install-helpers"},
QApplication::translate(
"main",
"Install helpers (linux only, requires sudo)."),
},
{
{"v", "version"},
QApplication::translate(
"main",
"Version of the bitmask-vpn."),
},
{
{"o", "obfs4"},
QApplication::translate(
"main",
"Use obfs4 to obfuscate the traffic, if available in the provider."),
},
{
{"a", "disable-autostart"},
QApplication::translate(
"main",
"Disable autostart for the next run."),
},
});
QCommandLineOption webPortOption("web-port", QApplication::translate("main", "Web api port (default: 8080)"), "port", "8080");
parser.addOption(webPortOption);
QCommandLineOption startVPNOption("start-vpn", QApplication::translate("main", "Start the vpn, either 'on' or 'off'."), "status", "");
parser.addOption(startVPNOption);
parser.process(app);
bool hideSystray = parser.isSet("no-systray");
bool installHelpers = parser.isSet("install-helpers");
bool webAPI = parser.isSet("web-api");
QString webPort = parser.value("web-port");
bool version = parser.isSet("version");
bool obfs4 = parser.isSet("obfs4");
bool disAutostart = parser.isSet("disable-autostart");
QString startVPN = parser.value("start-vpn");
if (version) {
qDebug() << backend.getVersion();
exit(0);
}
if (startVPN != "" && startVPN != "on" && startVPN != "off") {
qDebug() << "Error: --start-vpn must be either 'on' or 'off'";
exit(0);
}
if (hideSystray) {
qDebug() << "Not showing systray icon because --no-systray option is set.";
}
if (installHelpers) {
qDebug() << "Will try to install helpers with sudo";
InstallHelpers();
exit(0);
}
if (!QSystemTrayIcon::isSystemTrayAvailable()) {
qDebug() << "No systray icon available. Things might not work for now, sorry...";
}
QTranslator translator;
translator.load(QLocale(), QLatin1String("main"), QLatin1String("_"), QLatin1String(":/i18n"));
app.installTranslator(&translator);
QQmlApplicationEngine engine;
QQmlContext *ctx = engine.rootContext();
QJsonModel *model = new QJsonModel;
/* the backend handler has slots for calling back to Go when triggered by
signals in Qml. */
ctx->setContextProperty("backend", &backend);
/* set the json model, load providers.json */
ctx->setContextProperty("jsonModel", model);
ctx->setContextProperty("providers", providers);
/* set some useful flags */
ctx->setContextProperty("systrayVisible", !hideSystray);
engine.load(QUrl(QStringLiteral("qrc:/qml/main.qml")));
/* connect the jsonChanged signal explicitely.
In the lambda, we reload the json in the model every time we receive an
update from Go */
QObject::connect(qw, &QJsonWatch::jsonChanged, [model](QString js) {
model->loadJson(js.toUtf8());
});
/* connect quitDone signal, exit app */
QObject::connect(&backend, &Backend::quitDone, []() {
QGuiApplication::quit();
});
/* register statusChanged callback with CGO */
const char *stCh = "OnStatusChanged";
GoString statusChangedEvt = {stCh, (long int)strlen(stCh)};
SubscribeToEvent(statusChangedEvt, (void *)onStatusChanged);
/* we send json as bytes because it breaks as a simple string */
QString QProvidersJSON(providers->json().toJson(QJsonDocument::Compact));
/* let the Go side initialize its internal state */
InitializeBitmaskContext(
toGoStr(defaultProvider.toString()),
(char*)providerJsonBytes.data(), providerJsonBytes.length(),
obfs4, disAutostart, toGoStr(startVPN));
/* if requested, enable web api for controlling the VPN */
if (webAPI) {
EnableWebAPI(toGoStr(webPort));
};
/* kick off your shoes, put your feet up */
return app.exec();
}
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