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/*
* Copyright (c) 2020, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibCore/ArgsParser.h>
#include <LibCore/File.h>
#include <LibGUI/Action.h>
#include <LibGUI/Application.h>
#include <LibGUI/ImageWidget.h>
#include <LibGUI/Menu.h>
#include <LibGUI/Notification.h>
#include <LibGUI/Window.h>
#include <LibGfx/Bitmap.h>
#include <serenity.h>
#include <spawn.h>
#include <stdio.h>
class NetworkWidget final : public GUI::ImageWidget {
C_OBJECT(NetworkWidget);
private:
NetworkWidget(bool notifications)
{
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;
pid_t child_pid;
const char* argv[] = { "SystemMonitor", "-t", "network", nullptr };
if ((errno = posix_spawn(&child_pid, "/bin/SystemMonitor", nullptr, nullptr, const_cast<char**>(argv), environ))) {
perror("posix_spawn");
return;
}
if (disown(child_pid) < 0)
perror("disown");
}
virtual 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(m_adapter_info);
if (m_connected)
NetworkWidget::set_bitmap(m_connected_icon);
else
NetworkWidget::set_bitmap(m_disconnected_icon);
update();
}
virtual void notify_on_connect()
{
if (!m_notifications)
return;
auto notification = GUI::Notification::construct();
notification->set_title("Network");
notification->set_icon(m_connected_icon);
notification->set_text("Network connected");
notification->show();
}
virtual void notify_on_disconnect()
{
if (!m_notifications)
return;
auto notification = GUI::Notification::construct();
notification->set_title("Network");
notification->set_icon(m_disconnected_icon);
notification->set_text("Network disconnected");
notification->show();
}
virtual void set_connected(bool connected)
{
if (m_connected != connected) {
connected ? notify_on_connect() : notify_on_disconnect();
}
m_connected = connected;
}
virtual String get_adapter_info(bool include_loopback = false)
{
StringBuilder adapter_info;
auto file = Core::File::construct("/proc/net/adapters");
if (!file->open(Core::OpenMode::ReadOnly)) {
dbgln("Error: Could not open {}: {}", file->name(), file->error_string());
return adapter_info.to_string();
}
auto file_contents = file->read_all();
auto json = JsonValue::from_string(file_contents);
if (!json.has_value())
return adapter_info.to_string();
int connected_adapters = 0;
json.value().as_array().for_each([&adapter_info, include_loopback, &connected_adapters](auto& value) {
auto& if_object = value.as_object();
auto ip_address = if_object.get("ipv4_address").as_string_or("no IP");
auto ifname = if_object.get("name").to_string();
auto link_up = if_object.get("link_up").as_bool();
auto link_speed = if_object.get("link_speed").to_i32();
if (!include_loopback)
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_string();
}
String m_adapter_info;
bool m_connected = false;
bool m_notifications = true;
RefPtr<Gfx::Bitmap> m_connected_icon = Gfx::Bitmap::try_load_from_file("/res/icons/16x16/network.png");
RefPtr<Gfx::Bitmap> m_disconnected_icon = Gfx::Bitmap::try_load_from_file("/res/icons/16x16/network-disconnected.png");
};
int main(int argc, char* argv[])
{
if (pledge("stdio recvfd sendfd rpath unix proc exec", nullptr) < 0) {
perror("pledge");
return 1;
}
auto app = GUI::Application::construct(argc, argv);
if (unveil("/res", "r") < 0) {
perror("unveil");
return 1;
}
if (unveil("/tmp/portal/notify", "rw") < 0) {
perror("unveil");
return 1;
}
if (unveil("/proc/net/adapters", "r") < 0) {
perror("unveil");
return 1;
}
if (unveil("/bin/SystemMonitor", "x") < 0) {
perror("unveil");
return 1;
}
if (unveil(nullptr, nullptr) < 0) {
perror("unveil");
return 1;
}
bool display_notifications = false;
const char* name = nullptr;
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(argc, argv);
if (name == nullptr)
name = "Network";
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 = window->set_main_widget<NetworkWidget>(display_notifications);
icon.load_from_file("/res/icons/16x16/network.png");
window->resize(16, 16);
window->show();
return app->exec();
}
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