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use clap::{crate_authors, crate_description, crate_name, SubCommand};
use mullvad_ipc_client::{new_standalone_ipc_client, DaemonRpcClient};
use std::{io, process};
use talpid_core::firewall::{self, Firewall, FirewallArguments};
use talpid_types::ErrorExt;
pub const PRODUCT_VERSION: &str = include_str!(concat!(env!("OUT_DIR"), "/product-version.txt"));
#[derive(err_derive::Error, Debug)]
pub enum Error {
#[error(display = "Failed to connect to daemon")]
DaemonConnect(#[error(source)] io::Error),
#[error(display = "RPC call failed")]
DaemonRpcError(#[error(source)] mullvad_ipc_client::Error),
#[error(display = "This command cannot be run if the daemon is active")]
DaemonIsRunning,
#[error(display = "Firewall error")]
FirewallError(#[error(source)] firewall::Error),
}
fn main() {
env_logger::init();
let subcommands = vec![
SubCommand::with_name("prepare-restart")
.about("Move a running daemon into a blocking state and save its target state"),
SubCommand::with_name("reset-firewall")
.about("Remove any firewall rules introduced by the daemon"),
];
let app = clap::App::new(crate_name!())
.version(PRODUCT_VERSION)
.author(crate_authors!())
.about(crate_description!())
.setting(clap::AppSettings::SubcommandRequiredElseHelp)
.global_settings(&[
clap::AppSettings::DisableHelpSubcommand,
clap::AppSettings::VersionlessSubcommands,
])
.subcommands(subcommands);
let matches = app.get_matches();
let result = match matches.subcommand_name().expect("Subcommand has no name") {
"prepare-restart" => prepare_restart(),
"reset-firewall" => reset_firewall(),
_ => unreachable!("No command matched"),
};
if let Err(e) = result {
eprintln!("{}", e.display_chain());
process::exit(1);
}
}
fn prepare_restart() -> Result<(), Error> {
let mut rpc = new_rpc_client()?;
rpc.prepare_restart().map_err(Error::DaemonRpcError)
}
fn reset_firewall() -> Result<(), Error> {
// Ensure that the daemon isn't running
if let Ok(_) = new_rpc_client() {
return Err(Error::DaemonIsRunning);
}
let mut firewall = Firewall::new(FirewallArguments {
initialize_blocked: false,
allow_lan: None,
})
.map_err(Error::FirewallError)?;
firewall.reset_policy().map_err(Error::FirewallError)
}
fn new_rpc_client() -> Result<DaemonRpcClient, Error> {
new_standalone_ipc_client(&mullvad_paths::get_rpc_socket_path()).map_err(Error::DaemonConnect)
}
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