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111 lines
3.7 KiB
111 lines
3.7 KiB
use clap::{arg, App};
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use evdev::{Device, Key};
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use nix::unistd;
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use std::{env, path::Path, process::exit};
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pub fn main() {
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let args = set_flags().get_matches();
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env::set_var("RUST_LOG", "swhkd=warn");
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if args.is_present("debug") {
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env::set_var("RUST_LOG", "swhkd=trace");
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}
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env_logger::init();
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log::trace!("Logger initialized.");
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permission_check();
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let config_file_path: std::path::PathBuf;
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if args.is_present("config") {
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config_file_path = Path::new(args.value_of("config").unwrap()).to_path_buf();
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} else {
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config_file_path = check_config_xdg();
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}
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log::debug!("Using config file path: {:#?}", config_file_path);
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if !config_file_path.exists() {
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log::error!("{:#?} doesn't exist", config_file_path);
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exit(1);
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}
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log::trace!("Attempting to find all keyboard file descriptors.");
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let mut keyboard_devices: Vec<Device> = Vec::new();
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for (_, device) in evdev::enumerate().enumerate() {
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if check_keyboard(&device) {
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keyboard_devices.push(device);
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}
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}
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if keyboard_devices.is_empty() {
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log::error!("No valid keyboard device was detected!");
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exit(1);
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}
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log::debug!("{} Keyboard device(s) detected.", keyboard_devices.len());
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}
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pub fn permission_check() {
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if !unistd::Uid::current().is_root() {
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let groups = unistd::getgroups();
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for (_, groups) in groups.iter().enumerate() {
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for group in groups {
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let group = unistd::Group::from_gid(*group);
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if group.unwrap().unwrap().name == "input" {
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log::error!("Note: INVOKING USER IS IN INPUT GROUP!!!!");
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log::error!("THIS IS A HUGE SECURITY RISK!!!!");
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}
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}
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}
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log::error!("Consider using `pkexec swhkd ...`");
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exit(1);
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} else {
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log::warn!("Running swhkd as root!");
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}
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}
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pub fn check_keyboard(device: &Device) -> bool {
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if device.supported_keys().map_or(false, |keys| keys.contains(Key::KEY_ENTER)) {
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log::debug!("{} is a keyboard.", device.name().unwrap(),);
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true
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} else {
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log::trace!("{} is not a keyboard.", device.name().unwrap(),);
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false
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}
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}
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pub fn set_flags() -> App<'static> {
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let app = App::new("swhkd")
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.version(env!("CARGO_PKG_VERSION"))
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.author(env!("CARGO_PKG_AUTHORS"))
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.about("Simple Wayland HotKey Daemon")
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.arg(
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arg!(-c --config <CONFIG_FILE_PATH>)
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.required(false)
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.help("Set a custom config file path"),
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)
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.arg(arg!(-d - -debug).required(false).help("Enable debug mode"));
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app
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}
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pub fn check_config_xdg() -> std::path::PathBuf {
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let config_file_path: std::path::PathBuf;
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match env::var("XDG_CONFIG_HOME") {
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Ok(val) => {
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config_file_path = Path::new(&val).join("swhkd/swhkdrc");
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log::debug!("XDG_CONFIG_HOME exists: {:#?}", val);
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return config_file_path;
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}
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Err(_) => {
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log::error!("XDG_CONFIG_HOME has not been set.");
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config_file_path = Path::new("/etc/swhkd/swhkdrc").to_path_buf();
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log::warn!(
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"Note: Due to the design of the application, the invoking user is always root."
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);
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log::warn!("You can set a custom config file with the -c option.");
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log::warn!("Adding your user to the input group could solve this.");
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log::warn!("However that's a massive security flaw and basically defeats the purpose of using wayland.");
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log::warn!("The following issue may be addressed in the future, but it is certainly not a priority right now.");
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}
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}
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config_file_path
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}
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