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use clap;
use std::str::FromStr;
use {Command, Result, ResultExt};
use mullvad_ipc_client::DaemonRpcClient;
use mullvad_types::relay_constraints::{
Constraint, LocationConstraint, OpenVpnConstraints, RelayConstraintsUpdate,
RelaySettingsUpdate, TunnelConstraints,
};
use mullvad_types::CustomTunnelEndpoint;
use talpid_types::net::{
OpenVpnEndpointData, TransportProtocol, TunnelEndpointData, WireguardEndpointData,
};
pub struct Relay;
impl Command for Relay {
fn name(&self) -> &'static str {
"relay"
}
fn clap_subcommand(&self) -> clap::App<'static, 'static> {
clap::SubCommand::with_name(self.name())
.about("Manage relay and tunnel constraints")
.setting(clap::AppSettings::SubcommandRequired)
.subcommand(
clap::SubCommand::with_name("set")
.setting(clap::AppSettings::SubcommandRequired)
.subcommand(
clap::SubCommand::with_name("custom")
.about("Set a custom VPN relay")
.arg(
clap::Arg::with_name("tunnel")
.required(true)
.index(1)
.possible_values(&["openvpn", "wireguard"]),
).arg(
clap::Arg::with_name("host")
.help("Hostname or IP")
.required(true)
.index(2),
).arg(
clap::Arg::with_name("port")
.help("Remote network port")
.required(true)
.index(3),
).arg(
clap::Arg::with_name("protocol")
.help("Transport protocol. For Wireguard this is ignored.")
.index(4)
.default_value("udp")
.possible_values(&["udp", "tcp"]),
),
).subcommand(
clap::SubCommand::with_name("location")
.about(
"Set country or city to select relays from. Use the 'list' \
command to show available alternatives.",
).arg(
clap::Arg::with_name("country")
.help(
"The two letter country code, or 'any' for no preference.",
).required(true)
.index(1)
.validator(country_code_validator),
).arg(
clap::Arg::with_name("city")
.help("The three letter city code")
.index(2)
.validator(city_code_validator),
),
).subcommand(
clap::SubCommand::with_name("tunnel")
.about("Set tunnel constraints")
.arg(clap::Arg::with_name("port").required(true).index(1))
.arg(
clap::Arg::with_name("protocol")
.required(true)
.index(2)
.possible_values(&["any", "udp", "tcp"]),
),
),
).subcommand(clap::SubCommand::with_name("get"))
.subcommand(
clap::SubCommand::with_name("list").about("List available countries and cities"),
)
}
fn run(&self, matches: &clap::ArgMatches) -> Result<()> {
if let Some(set_matches) = matches.subcommand_matches("set") {
self.set(set_matches)
} else if let Some(_) = matches.subcommand_matches("get") {
self.get()
} else if let Some(list_matches) = matches.subcommand_matches("list") {
self.list(list_matches)
} else {
unreachable!("No relay command given");
}
}
}
impl Relay {
fn update_constraints(&self, update: RelaySettingsUpdate) -> Result<()> {
let mut rpc = DaemonRpcClient::new()?;
rpc.update_relay_settings(update)?;
println!("Relay constraints updated");
Ok(())
}
fn set(&self, matches: &clap::ArgMatches) -> Result<()> {
if let Some(custom_matches) = matches.subcommand_matches("custom") {
self.set_custom(custom_matches)
} else if let Some(location_matches) = matches.subcommand_matches("location") {
self.set_location(location_matches)
} else if let Some(tunnel_matches) = matches.subcommand_matches("tunnel") {
self.set_tunnel(tunnel_matches)
} else {
unreachable!("No set relay command given");
}
}
fn set_custom(&self, matches: &clap::ArgMatches) -> Result<()> {
let host = value_t!(matches.value_of("host"), String).unwrap_or_else(|e| e.exit());
let port = value_t!(matches.value_of("port"), u16).unwrap_or_else(|e| e.exit());
let tunnel = match matches.value_of("tunnel").unwrap() {
"openvpn" => TunnelEndpointData::OpenVpn(OpenVpnEndpointData {
port,
protocol: value_t!(matches.value_of("protocol"), TransportProtocol).unwrap(),
}),
"wireguard" => TunnelEndpointData::Wireguard(WireguardEndpointData { port }),
_ => unreachable!("Invalid tunnel protocol"),
};
self.update_constraints(RelaySettingsUpdate::CustomTunnelEndpoint(
CustomTunnelEndpoint { host, tunnel },
))
}
fn set_location(&self, matches: &clap::ArgMatches) -> Result<()> {
let country = matches.value_of("country").unwrap();
let city = matches.value_of("city");
let location_constraint = match (country, city) {
("any", None) => Constraint::Any,
("any", _) => clap::Error::with_description(
"City can't be given when selecting 'any' country",
clap::ErrorKind::InvalidValue,
).exit(),
(country, None) => Constraint::Only(LocationConstraint::Country(country.to_owned())),
(country, Some(city)) => Constraint::Only(LocationConstraint::City(
country.to_owned(),
city.to_owned(),
)),
};
self.update_constraints(RelaySettingsUpdate::Normal(RelayConstraintsUpdate {
location: Some(location_constraint),
tunnel: None,
}))
}
fn set_tunnel(&self, matches: &clap::ArgMatches) -> Result<()> {
let port = parse_port_constraint(matches.value_of("port").unwrap())?;
let protocol = parse_protocol_constraint(matches.value_of("protocol").unwrap());
self.update_constraints(RelaySettingsUpdate::Normal(RelayConstraintsUpdate {
location: None,
tunnel: Some(Constraint::Only(TunnelConstraints::OpenVpn(
OpenVpnConstraints { port, protocol },
))),
}))
}
fn get(&self) -> Result<()> {
let mut rpc = DaemonRpcClient::new()?;
let constraints = rpc.get_relay_settings()?;
println!("Current constraints: {:#?}", constraints);
Ok(())
}
fn list(&self, _matches: &clap::ArgMatches) -> Result<()> {
let mut rpc = DaemonRpcClient::new()?;
let mut locations = rpc.get_relay_locations()?;
locations.countries.sort_by(|c1, c2| c1.name.cmp(&c2.name));
for mut country in locations.countries {
country.cities.sort_by(|c1, c2| c1.name.cmp(&c2.name));
println!("{} ({})", country.name, country.code);
for city in &country.cities {
println!(
"\t{} ({}) @ {:.5}°N, {:.5}°W",
city.name, city.code, city.latitude, city.longitude
);
}
println!();
}
Ok(())
}
}
fn parse_port_constraint(raw_port: &str) -> Result<Constraint<u16>> {
match raw_port.to_lowercase().as_str() {
"any" => Ok(Constraint::Any),
port => Ok(Constraint::Only(
u16::from_str(port).chain_err(|| "Invalid port")?,
)),
}
}
/// Parses a protocol constraint string. Can be infallible because the possible values are limited
/// with clap.
fn parse_protocol_constraint(raw_protocol: &str) -> Constraint<TransportProtocol> {
match raw_protocol.to_lowercase().as_str() {
"any" => Constraint::Any,
"udp" => Constraint::Only(TransportProtocol::Udp),
"tcp" => Constraint::Only(TransportProtocol::Tcp),
_ => unreachable!(),
}
}
fn country_code_validator(code: String) -> ::std::result::Result<(), String> {
if code.len() == 2 || code == "any" {
Ok(())
} else {
Err(String::from("Country codes must be two letters, or 'any'."))
}
}
fn city_code_validator(code: String) -> ::std::result::Result<(), String> {
if code.len() == 3 {
Ok(())
} else {
Err(String::from("City codes must be three letters"))
}
}
|
