ladybird/Userland/Applets/Network/main.cpp

197 lines
6.5 KiB
C++

/*
* Copyright (c) 2020, the SerenityOS developers.
* Copyright (c) 2022, Sam Atkins <atkinssj@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibCore/ArgsParser.h>
#include <LibCore/File.h>
#include <LibCore/System.h>
#include <LibGUI/Action.h>
#include <LibGUI/Application.h>
#include <LibGUI/ImageWidget.h>
#include <LibGUI/Menu.h>
#include <LibGUI/Notification.h>
#include <LibGUI/Process.h>
#include <LibGUI/Window.h>
#include <LibGfx/Bitmap.h>
#include <LibMain/Main.h>
class NetworkWidget final : public GUI::ImageWidget {
C_OBJECT_ABSTRACT(NetworkWidget)
public:
static ErrorOr<NonnullRefPtr<NetworkWidget>> try_create(bool notifications)
{
NonnullRefPtr<Gfx::Bitmap> connected_icon = TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/network.png"sv));
NonnullRefPtr<Gfx::Bitmap> disconnected_icon = TRY(Gfx::Bitmap::load_from_file("/res/icons/16x16/network-disconnected.png"sv));
return adopt_nonnull_ref_or_enomem(new (nothrow) NetworkWidget(notifications, move(connected_icon), move(disconnected_icon)));
}
private:
NetworkWidget(bool notifications, NonnullRefPtr<Gfx::Bitmap> connected_icon, NonnullRefPtr<Gfx::Bitmap> disconnected_icon)
: m_connected_icon(move(connected_icon))
, m_disconnected_icon(move(disconnected_icon))
{
m_notifications = notifications;
update_widget();
start_timer(5000);
}
virtual void timer_event(Core::TimerEvent&) override
{
update_widget();
}
virtual void mousedown_event(GUI::MouseEvent& event) override
{
if (event.button() != GUI::MouseButton::Primary)
return;
GUI::Process::spawn_or_show_error(window(), "/bin/SystemMonitor"sv, Array { "-t", "network" });
}
void update_widget()
{
auto adapter_info = get_adapter_info();
if (adapter_info == "") {
set_connected(false);
m_adapter_info = "No network adapters";
} else {
m_adapter_info = adapter_info;
}
set_tooltip_deprecated(m_adapter_info);
if (m_connected)
NetworkWidget::set_bitmap(m_connected_icon);
else
NetworkWidget::set_bitmap(m_disconnected_icon);
update();
}
void notify_on_connect()
{
if (!m_notifications)
return;
auto notification = GUI::Notification::construct();
notification->set_title("Network"_string);
notification->set_icon(m_connected_icon);
notification->set_text("Network connected"_string);
notification->show();
}
void notify_on_disconnect()
{
if (!m_notifications)
return;
auto notification = GUI::Notification::construct();
notification->set_title("Network"_string);
notification->set_icon(m_disconnected_icon);
notification->set_text("Network disconnected"_string);
notification->show();
}
void set_connected(bool connected)
{
if (m_connected != connected) {
connected ? notify_on_connect() : notify_on_disconnect();
}
m_connected = connected;
}
DeprecatedString get_adapter_info()
{
StringBuilder adapter_info;
auto file_or_error = Core::File::open("/sys/kernel/net/adapters"sv, Core::File::OpenMode::Read);
if (file_or_error.is_error()) {
dbgln("Error: Could not open /sys/kernel/net/adapters: {}", file_or_error.error());
return "";
}
auto file_contents_or_error = file_or_error.value()->read_until_eof();
if (file_contents_or_error.is_error()) {
dbgln("Error: Could not read /sys/kernel/net/adapters: {}", file_contents_or_error.error());
return "";
}
auto json = JsonValue::from_string(file_contents_or_error.value());
if (json.is_error())
return adapter_info.to_deprecated_string();
int connected_adapters = 0;
json.value().as_array().for_each([&adapter_info, &connected_adapters](auto& value) {
auto& if_object = value.as_object();
auto ip_address = if_object.get_deprecated_string("ipv4_address"sv).value_or("no IP");
auto ifname = if_object.get_deprecated_string("name"sv).value();
auto link_up = if_object.get_bool("link_up"sv).value();
auto link_speed = if_object.get_i32("link_speed"sv).value();
if (ifname == "loop")
return;
if (ip_address != "null")
connected_adapters++;
if (!adapter_info.is_empty())
adapter_info.append('\n');
adapter_info.appendff("{}: {} ", ifname, ip_address);
if (!link_up)
adapter_info.appendff("(down)");
else
adapter_info.appendff("({} Mb/s)", link_speed);
});
// show connected icon so long as at least one adapter is connected
connected_adapters ? set_connected(true) : set_connected(false);
return adapter_info.to_deprecated_string();
}
DeprecatedString m_adapter_info;
bool m_connected = false;
bool m_notifications = true;
NonnullRefPtr<Gfx::Bitmap> m_connected_icon;
NonnullRefPtr<Gfx::Bitmap> m_disconnected_icon;
};
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
TRY(Core::System::pledge("stdio recvfd sendfd rpath unix proc exec"));
auto app = TRY(GUI::Application::create(arguments));
TRY(Core::System::unveil("/tmp/session/%sid/portal/notify", "rw"));
TRY(Core::System::unveil("/res", "r"));
TRY(Core::System::unveil("/sys/kernel/net/adapters", "r"));
TRY(Core::System::unveil("/bin/SystemMonitor", "x"));
TRY(Core::System::unveil(nullptr, nullptr));
bool display_notifications = false;
StringView name;
Core::ArgsParser args_parser;
args_parser.add_option(display_notifications, "Display notifications", "display-notifications", 'd');
args_parser.add_option(name, "Applet name used by WindowServer.ini to set the applet order", "name", 'n', "name");
args_parser.parse(arguments);
if (name.is_empty())
name = "Network"sv;
auto window = GUI::Window::construct();
window->set_title(name);
window->set_window_type(GUI::WindowType::Applet);
window->set_has_alpha_channel(true);
window->resize(16, 16);
auto icon = TRY(NetworkWidget::try_create(display_notifications));
window->set_main_widget(icon);
icon->load_from_file("/res/icons/16x16/network.png"sv);
window->resize(16, 16);
window->show();
return app->exec();
}