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|
use dns_lookup::{lookup_addr, lookup_host};
use hbb_common::{bail, ResultType};
use sodiumoxide::crypto::sign;
use std::{
env,
net::{IpAddr, TcpStream},
process, str,
};
fn print_help() {
println!(
"Usage:
rustdesk-util [command]\n
Available Commands:
genkeypair Generate a new keypair
validatekeypair [public key] [secret key] Validate an existing keypair
doctor [rustdesk-server] Check for server connection problems"
);
process::exit(0x0001);
}
fn error_then_help(msg: &str) {
println!("ERROR: {msg}\n");
print_help();
}
fn gen_keypair() {
let (pk, sk) = sign::gen_keypair();
let public_key = base64::encode(pk);
let secret_key = base64::encode(sk);
println!("Public Key: {public_key}");
println!("Secret Key: {secret_key}");
}
fn validate_keypair(pk: &str, sk: &str) -> ResultType<()> {
let sk1 = base64::decode(sk);
if sk1.is_err() {
bail!("Invalid secret key");
}
let sk1 = sk1.unwrap();
let secret_key = sign::SecretKey::from_slice(sk1.as_slice());
if secret_key.is_none() {
bail!("Invalid Secret key");
}
let secret_key = secret_key.unwrap();
let pk1 = base64::decode(pk);
if pk1.is_err() {
bail!("Invalid public key");
}
let pk1 = pk1.unwrap();
let public_key = sign::PublicKey::from_slice(pk1.as_slice());
if public_key.is_none() {
bail!("Invalid Public key");
}
let public_key = public_key.unwrap();
let random_data_to_test = b"This is meh.";
let signed_data = sign::sign(random_data_to_test, &secret_key);
let verified_data = sign::verify(&signed_data, &public_key);
if verified_data.is_err() {
bail!("Key pair is INVALID");
}
let verified_data = verified_data.unwrap();
if random_data_to_test != &verified_data[..] {
bail!("Key pair is INVALID");
}
Ok(())
}
fn doctor_tcp(address: std::net::IpAddr, port: &str, desc: &str) {
let start = std::time::Instant::now();
let conn = format!("{address}:{port}");
if let Ok(_stream) = TcpStream::connect(conn.as_str()) {
let elapsed = std::time::Instant::now().duration_since(start);
println!(
"TCP Port {} ({}): OK in {} ms",
port,
desc,
elapsed.as_millis()
);
} else {
println!("TCP Port {port} ({desc}): ERROR");
}
}
fn doctor_ip(server_ip_address: std::net::IpAddr, server_address: Option<&str>) {
println!("\nChecking IP address: {server_ip_address}");
println!("Is IPV4: {}", server_ip_address.is_ipv4());
println!("Is IPV6: {}", server_ip_address.is_ipv6());
// reverse dns lookup
// TODO: (check) doesn't seem to do reverse lookup on OSX...
let reverse = lookup_addr(&server_ip_address).unwrap();
if let Some(server_address) = server_address {
if reverse == server_address {
println!("Reverse DNS lookup: '{reverse}' MATCHES server address");
} else {
println!(
"Reverse DNS lookup: '{reverse}' DOESN'T MATCH server address '{server_address}'"
);
}
}
// TODO: ICMP ping?
// port check TCP (UDP is hard to check)
doctor_tcp(server_ip_address, "21114", "API");
doctor_tcp(server_ip_address, "21115", "hbbs extra port for nat test");
doctor_tcp(server_ip_address, "21116", "hbbs");
doctor_tcp(server_ip_address, "21117", "hbbr tcp");
doctor_tcp(server_ip_address, "21118", "hbbs websocket");
doctor_tcp(server_ip_address, "21119", "hbbr websocket");
// TODO: key check
}
fn doctor(server_address_unclean: &str) {
let server_address3 = server_address_unclean.trim();
let server_address2 = server_address3.to_lowercase();
let server_address = server_address2.as_str();
println!("Checking server: {server_address}\n");
if let Ok(server_ipaddr) = server_address.parse::<IpAddr>() {
// user requested an ip address
doctor_ip(server_ipaddr, None);
} else {
// the passed string is not an ip address
let ips: Vec<std::net::IpAddr> = lookup_host(server_address).unwrap();
println!("Found {} IP addresses: ", ips.len());
ips.iter().for_each(|ip| println!(" - {ip}"));
ips.iter()
.for_each(|ip| doctor_ip(*ip, Some(server_address)));
}
}
fn main() {
let args: Vec<_> = env::args().collect();
if args.len() <= 1 {
print_help();
}
let command = args[1].to_lowercase();
match command.as_str() {
"genkeypair" => gen_keypair(),
"validatekeypair" => {
if args.len() <= 3 {
error_then_help("You must supply both the public and the secret key");
}
let res = validate_keypair(args[2].as_str(), args[3].as_str());
if let Err(e) = res {
println!("{e}");
process::exit(0x0001);
}
println!("Key pair is VALID");
}
"doctor" => {
if args.len() <= 2 {
error_then_help("You must supply the rustdesk-server address");
}
doctor(args[2].as_str());
}
_ => print_help(),
}
}
|
