data_ro: web::Data<DataBaseRo>,

    let mut parts = form.login.splitn(4, '@');
    let (user, domain) = match (parts.next(), parts.next(), parts.next(), parts.next()) {
        (Some(u), Some(d), None, None) | (Some(""), Some(u), Some(d), None) => {
            (u.to_ascii_lowercase(), d.to_ascii_lowercase())
        }
        other => {
            log::error!("Unknown Mastodon address {:?}", other);
            return HttpResponse::NotFound().body("Not found");
        }
    };

    let dbclient = match data_ro.0.get().await {
        Ok(c) => c,
        Err(e) => {
            log::error!("Pool RO error {}", e);
            return HttpResponse::ServiceUnavailable().body(actix_web::body::None::new());
        }
    };
    let stmt = match dbclient.prepare("select player_name from auth.contacts where protocol = 'mastodon' and is_active = true and delete_ts is null and address = $1 limit 1;").await {
        Ok(stmt) => stmt,
        Err(e) => {
            log::error!("Pool RO statement error {}", e);
            return HttpResponse::ServiceUnavailable().body(actix_web::body::None::new());
        }
    };
    let address = format!("{}@{}", user, domain);
    let rows = match dbclient.query_opt(&stmt, &[&address]).await {
        Ok(rows) => rows,
        Err(e) => {
            log::error!("Pool RO query error {}", e);
            return HttpResponse::ServiceUnavailable().body(actix_web::body::None::new());
        }
    };
    let row = match rows {
        Some(row) => row,
        None => {
            return HttpResponse::NotFound().body("Not found");
        }
    };
    let player_name = row.get::<_, &str>(0);
    log::info!("Found player {} to login with mastodon", player_name);