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use clap::App;
use hbb_common::{
anyhow::{Context, Result},
log, ResultType,
};
use ini::Ini;
use sodiumoxide::crypto::sign;
use std::{
io::prelude::*,
io::Read,
net::SocketAddr,
time::{Instant, SystemTime},
};
#[allow(dead_code)]
pub(crate) fn get_expired_time() -> Instant {
let now = Instant::now();
now.checked_sub(std::time::Duration::from_secs(3600))
.unwrap_or(now)
}
#[allow(dead_code)]
pub(crate) fn test_if_valid_server(host: &str, name: &str) -> ResultType<SocketAddr> {
use std::net::ToSocketAddrs;
let res = if host.contains(':') {
host.to_socket_addrs()?.next().context("")
} else {
format!("{}:{}", host, 0)
.to_socket_addrs()?
.next()
.context("")
};
if res.is_err() {
log::error!("Invalid {} {}: {:?}", name, host, res);
}
res
}
#[allow(dead_code)]
pub(crate) fn get_servers(s: &str, tag: &str) -> Vec<String> {
let servers: Vec<String> = s
.split(',')
.filter(|x| !x.is_empty() && test_if_valid_server(x, tag).is_ok())
.map(|x| x.to_owned())
.collect();
log::info!("{}={:?}", tag, servers);
servers
}
#[allow(dead_code)]
#[inline]
fn arg_name(name: &str) -> String {
name.to_uppercase().replace('_', "-")
}
#[allow(dead_code)]
pub fn init_args(args: &str, name: &str, about: &str) {
let matches = App::new(name)
.version(crate::version::VERSION)
.author("Purslane Ltd. <info@rustdesk.com>")
.about(about)
.args_from_usage(args)
.get_matches();
if let Ok(v) = Ini::load_from_file(".env") {
if let Some(section) = v.section(None::<String>) {
section
.iter()
.for_each(|(k, v)| std::env::set_var(arg_name(k), v));
}
}
if let Some(config) = matches.value_of("config") {
if let Ok(v) = Ini::load_from_file(config) {
if let Some(section) = v.section(None::<String>) {
section
.iter()
.for_each(|(k, v)| std::env::set_var(arg_name(k), v));
}
}
}
for (k, v) in matches.args {
if let Some(v) = v.vals.get(0) {
std::env::set_var(arg_name(k), v.to_string_lossy().to_string());
}
}
}
#[allow(dead_code)]
#[inline]
pub fn get_arg(name: &str) -> String {
get_arg_or(name, "".to_owned())
}
#[allow(dead_code)]
#[inline]
pub fn get_arg_or(name: &str, default: String) -> String {
std::env::var(arg_name(name)).unwrap_or(default)
}
#[allow(dead_code)]
#[inline]
pub fn now() -> u64 {
SystemTime::now()
.duration_since(SystemTime::UNIX_EPOCH)
.map(|x| x.as_secs())
.unwrap_or_default()
}
pub fn gen_sk(wait: u64) -> (String, Option<sign::SecretKey>) {
let sk_file = "id_ed25519";
if wait > 0 && !std::path::Path::new(sk_file).exists() {
std::thread::sleep(std::time::Duration::from_millis(wait));
}
if let Ok(mut file) = std::fs::File::open(sk_file) {
let mut contents = String::new();
if file.read_to_string(&mut contents).is_ok() {
let sk = base64::decode(&contents).unwrap_or_default();
if sk.len() == sign::SECRETKEYBYTES {
let mut tmp = [0u8; sign::SECRETKEYBYTES];
tmp[..].copy_from_slice(&sk);
let pk = base64::encode(&tmp[sign::SECRETKEYBYTES / 2..]);
log::info!("Private key comes from {}", sk_file);
return (pk, Some(sign::SecretKey(tmp)));
}
}
} else {
let gen_func = || {
let (tmp, sk) = sign::gen_keypair();
(base64::encode(tmp), sk)
};
let (mut pk, mut sk) = gen_func();
for _ in 0..300 {
if !pk.contains('/') && !pk.contains(':') {
break;
}
(pk, sk) = gen_func();
}
let pub_file = format!("{}.pub", sk_file);
if let Ok(mut f) = std::fs::File::create(&pub_file) {
f.write_all(pk.as_bytes()).ok();
if let Ok(mut f) = std::fs::File::create(sk_file) {
let s = base64::encode(&sk);
if f.write_all(s.as_bytes()).is_ok() {
log::info!("Private/public key written to {}/{}", sk_file, pub_file);
log::debug!("Public key: {}", pk);
return (pk, Some(sk));
}
}
}
}
("".to_owned(), None)
}
#[cfg(unix)]
pub async fn listen_signal() -> Result<()> {
use hbb_common::tokio;
use hbb_common::tokio::signal::unix::{signal, SignalKind};
tokio::spawn(async {
let mut s = signal(SignalKind::hangup())?;
let hangup = s.recv();
let mut s = signal(SignalKind::terminate())?;
let terminate = s.recv();
let mut s = signal(SignalKind::interrupt())?;
let interrupt = s.recv();
let mut s = signal(SignalKind::quit())?;
let quit = s.recv();
tokio::select! {
_ = hangup => {
log::info!("signal hangup");
}
_ = terminate => {
log::info!("signal terminate");
}
_ = interrupt => {
log::info!("signal interrupt");
}
_ = quit => {
log::info!("signal quit");
}
}
Ok(())
})
.await?
}
#[cfg(not(unix))]
pub async fn listen_signal() -> Result<()> {
let () = std::future::pending().await;
unreachable!();
}
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