xmr-btc-swap/xmr-btc/tests/tor.rs

#[cfg(feature = "tor")]
mod tor_test {

    use anyhow::Result;
    use hyper::service::{make_service_fn, service_fn};
    use reqwest::StatusCode;
    use spectral::prelude::*;
    use std::{convert::Infallible, process::Child};
    use tokio::sync::oneshot::Receiver;
    use torut::{
        onion::TorSecretKeyV3,
        utils::{run_tor, AutoKillChild},
    };
    use xmr_btc::tor::UnauthenticatedConnection;

    async fn hello_world(
        _req: hyper::Request<hyper::Body>,
    ) -> Result<hyper::Response<hyper::Body>, Infallible> {
        Ok(hyper::Response::new("Hello World".into()))
    }

    fn start_test_service(port: u16, rx: Receiver<()>) {
        let make_svc =
            make_service_fn(|_conn| async { Ok::<_, Infallible>(service_fn(hello_world)) });
        let addr = ([127, 0, 0, 1], port).into();
        let server = hyper::Server::bind(&addr).serve(make_svc);
        let graceful = server.with_graceful_shutdown(async {
            rx.await.ok();
        });
        tokio::spawn(async {
            // server.await.unwrap();
            if let Err(e) = graceful.await {
                eprintln!("server error: {}", e);
            }
        });
    }

    fn run_tmp_tor() -> (Child, u16, u16) {
        let control_port = if port_check::is_local_port_free(9051) {
            9051
        } else {
            port_check::free_local_port().unwrap()
        };
        let proxy_port = if port_check::is_local_port_free(9050) {
            9050
        } else {
            port_check::free_local_port().unwrap()
        };

        (
            run_tor(
                "tor",
                &mut [
                    "--CookieAuthentication",
                    "1",
                    "--ControlPort",
                    control_port.to_string().as_str(),
                    "--SocksPort",
                    proxy_port.to_string().as_str(),
                ]
                .iter(),
            )
            .expect("Starting tor filed"),
            control_port,
            proxy_port,
        )
    }

    #[tokio::test]
    async fn test_tor_control_port() -> Result<()> {
        // start tmp tor
        let (child, control_port, proxy_port) = run_tmp_tor();
        let _child = AutoKillChild::new(child);

        // Setup test HTTP Server
        let (tx, rx) = tokio::sync::oneshot::channel::<()>();
        let port = 8080;
        start_test_service(port, rx);

        // Connect to local Tor service
        let mut authenticated_connection =
            UnauthenticatedConnection::with_ports(proxy_port, control_port)
                .init_authenticated_connection()
                .await?;

        // Expose an onion service that re-directs to the echo server.
        let tor_secret_key_v3 = TorSecretKeyV3::generate();
        authenticated_connection
            .add_service(port, &tor_secret_key_v3)
            .await?;

        // Test if Tor service forwards to HTTP Server

        let proxy = reqwest::Proxy::all(format!("socks5h://127.0.0.1:{}", proxy_port).as_str())
            .expect("tor proxy should be there");
        let client = reqwest::Client::builder().proxy(proxy).build().unwrap();
        let onion_address = tor_secret_key_v3.public().get_onion_address().to_string();
        let onion_url = format!("http://{}:8080", onion_address);

        let res = client.get(&onion_url).send().await?;
        assert_that(&res.status()).is_equal_to(StatusCode::OK);

        let text = res.text().await?;
        assert_that!(text).contains("Hello World");

        // gracefully shut down server
        let _ = tx.send(());
        Ok(())
    }
}