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/*
* This file is part of smolbote. It's copyrighted by the contributors recorded
* in the version control history of the file, available from its original
* location: https://neueland.iserlohn-fortress.net/gitea/aqua/smolbote
*
* SPDX-License-Identifier: GPL-3.0
*/
#include "browser.h"
#include "session.h"
#include "util.h"
#include <version.h>
#include <QFile>
#include <QLibraryInfo>
#include <QTranslator>
#include "configuration.h"
#include <iostream>
#include <memory>
#include <QPluginLoader>
#include <plugininterface.h>
#include <QVersionNumber>
#ifdef _WIN32
#include <cstdio>
#include <windows.h>
#endif
#ifdef BreakpadEnabled
struct BreakpadContext {
char *handler = nullptr;
};
#ifdef Q_OS_LINUX
#include <unistd.h>
#include <client/linux/handler/exception_handler.h>
// bool filter_callback (void*)
// --> true: continue processing and write a minidump
static bool dumpCallback(const google_breakpad::MinidumpDescriptor &descriptor, void *context, bool succeeded)
{
printf("Dump path: %s\n", descriptor.path());
auto *ctx = static_cast<BreakpadContext *>(context);
if(ctx != nullptr) {
if(ctx->handler != nullptr) {
// fork and run 'handler master:commit path.dmp'
pid_t pid = fork();
if(pid == 0) {
char buffer[256];
snprintf(buffer, 256, "%s %s %s", ctx->handler, poi_Build, descriptor.path());
execlp("/bin/sh", "/bin/sh", "-c", buffer, (char *)nullptr);
}
}
}
return succeeded;
}
#endif // Q_OS_LINUX
#endif
int main(int argc, char **argv)
{
// a beautiful hack to be able to write to stdout on Windows
#ifdef _WIN32
if(AttachConsole(ATTACH_PARENT_PROCESS)) {
freopen("CONOUT$", "w", stdout);
freopen("CONOUT$", "w", stderr);
}
#endif
// Disable Chromium's crash handler so breakpad can capture crashes instead.
// This has to be done before QtWebEngine gets initialized.
const auto chromiumFlags = qgetenv("QTWEBENGINE_CHROMIUM_FLAGS");
if (!chromiumFlags.contains("disable-in-process-stack-traces")) {
qputenv("QTWEBENGINE_CHROMIUM_FLAGS", chromiumFlags + " --disable-in-process-stack-traces");
}
// create and load configuration
std::unique_ptr<Configuration> config = std::make_unique<Configuration>(nullptr);
#ifdef QT_DEBUG
QObject::connect(config.get(), &Configuration::settingChanged, [](const std::string &path, const QString &value) {
qDebug("!!! setting changed %s=[%s]", path.c_str(), qUtf8Printable(value));
});
#endif
if(!config->parse(argc, argv)) {
qWarning("Error parsing command line, check --help for usage.");
return -1;
}
if(!config->parse(config->value<std::string>("config").value())) {
qWarning("Error parsing config file.");
}
// --version
if(config->exists("version")) {
auto ver = QVersionNumber::fromString(QLatin1String(poi_Version));
std::cout << "smolbote " << ver.toString().toStdString() << std::endl;
return 0;
}
// --build
if(config->exists("build")) {
std::cout << poi_Version << std::endl;
return 0;
}
QVector<QPluginLoader *> plugins;
CommandHash_t pluginCommands;
for(const QString &path : Util::files(config->value<QString>("plugins.path").value())) {
QPluginLoader *loader = new QPluginLoader(path);
const bool loaded = loader->load();
#ifdef QT_DEBUG
qDebug("Loading plugin %s %s", qUtf8Printable(path), loaded ? "[ok]" : "[failed]");
#endif
if(loader->load()) {
plugins.append(loader);
auto *plugin = qobject_cast<PluginInterface *>(loader->instance());
pluginCommands.unite(plugin->commands());
} else {
qDebug("%s", qUtf8Printable(loader->errorString()));
delete loader;
}
}
if(config->exists("help")) {
std::cout << "smolbote " << poi_Version << ": yet another no-frills browser" << std::endl;
std::cout << "Usage: " << argv[0] << " [options] [command/URL(s)]" << std::endl
<< std::endl;
std::cout << "Command-line Options: " << std::endl
<< config->commandlineOptions() << std::endl;
std::cout << "Commands: " << std::endl;
for(auto it = pluginCommands.constBegin(); it != pluginCommands.constEnd(); ++it) {
std::cout << it.key().toStdString() << std::endl;
}
std::cout << std::endl;
std::cout << "Configuration Options: " << std::endl
<< config->configurationOptions() << std::endl;
#ifdef Q_OS_LINUX
std::cout << std::endl
<< "For more information refer to the manual page smolbote.7" << std::endl;
#endif
return 0;
}
// argc, argv, allowSecondary
Browser app(argc, argv);
// set this, otherwise the webview becomes black when using a stylesheet
app.setAttribute(Qt::AA_DontCreateNativeWidgetSiblings, true);
#ifdef BreakpadEnabled
const std::string crashpath = config->value<std::string>("browser.crash.path").value_or("/tmp");
assert(!crashpath.empty());
BreakpadContext ctx;
google_breakpad::MinidumpDescriptor descriptor(crashpath.c_str());
const auto crashHandler = config->value<std::string>("browser.crash.handler");
if(crashHandler) {
const int length = crashHandler.value().length() + 1;
ctx.handler = new char[length];
crashHandler.value().copy(ctx.handler, length - 1);
ctx.handler[length - 1] = '\0';
}
// minidump descriptor, filter callback, minidump callback, callback_context, install handler, server_fd
google_breakpad::ExceptionHandler eh(descriptor, nullptr, dumpCallback, &ctx, true, -1);
#ifdef QT_DEBUG
qDebug("Installed breakpad exception handler (path=%s)", crashpath.c_str());
#endif
#endif
// translator
if(config->exists("browser.locale")) {
auto *translator = new QTranslator(&app);
if(translator->load("qt_" + config->value<QString>("browser.locale").value(), QLibraryInfo::location(QLibraryInfo::TranslationsPath)))
app.installTranslator(translator);
else
delete translator;
}
if(config->exists("browser.translation")) {
auto *translator = new QTranslator(&app);
if(translator->load(config->value<QString>("browser.translation").value()))
app.installTranslator(translator);
else
delete translator;
}
// command line arguments
bool isStandalone = config->exists("no-remote");
auto arguments = config->value<std::vector<std::string>>("args");
auto session = config->value<QString>("browser.session");
auto profile = config->value<QString>("profile.default");
app.setConfiguration(config);
app.setup(plugins);
QStringList urls;
if(arguments) {
for(const auto &u : arguments.value()) {
if(pluginCommands.contains(QString::fromStdString(u))) {
return pluginCommands.value(QString::fromStdString(u))();
} else {
urls.append(QString::fromStdString(u));
}
}
}
// if app is primary, create new sessions from received messages
if(app.isPrimary() && !isStandalone) {
QObject::connect(&app, &Browser::receivedMessage, &app, [&app](quint32 instanceId, QByteArray message) {
Q_UNUSED(instanceId);
auto doc = QJsonDocument::fromJson(message);
app.createSession(doc.object());
});
}
{
QJsonObject sessionData;
if(session) {
QFile sessionJson(session.value());
if(sessionJson.open(QIODevice::ReadOnly | QIODevice::Text)) {
sessionData = QJsonDocument::fromJson(sessionJson.readAll()).object();
sessionJson.close();
}
} else {
sessionData = Session::window(profile.value(), urls);
}
if(app.isPrimary() || isStandalone) {
app.createSession(sessionData);
} else {
// app is secondary and not standalone
return app.sendMessage(QJsonDocument(sessionData).toJson());
}
}
return app.exec();
}
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