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use mullvad_types::relay_constraints::{Constraint, LocationConstraint};
pub fn get_subcommand() -> clap::App<'static, 'static> {
clap::SubCommand::with_name("location")
.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),
)
.arg(
clap::Arg::with_name("hostname")
.help("The hostname")
.index(3),
)
}
pub fn get_constraint(matches: &clap::ArgMatches<'_>) -> Constraint<LocationConstraint> {
let country_original = matches.value_of("country").unwrap();
let country = country_original.to_lowercase();
let city = matches.value_of("city").map(str::to_lowercase);
let hostname = matches.value_of("hostname").map(str::to_lowercase);
match (country_original, city, hostname) {
("any", None, None) => Constraint::Any,
("any", ..) => clap::Error::with_description(
"City can't be given when selecting 'any' country",
clap::ErrorKind::InvalidValue,
)
.exit(),
(_, None, None) => Constraint::Only(LocationConstraint::Country(country)),
(_, Some(city), None) => Constraint::Only(LocationConstraint::City(country, city)),
(_, Some(city), Some(hostname)) => {
Constraint::Only(LocationConstraint::Hostname(country, city, hostname))
}
(..) => clap::Error::with_description(
"Invalid country, city and hostname combination given",
clap::ErrorKind::InvalidValue,
)
.exit(),
}
}
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"))
}
}
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