Rust (warp)如何丢弃未经授权的请求？

use warp::Filter;

// 定义一个中间件，用于验证请求是否经过授权
fn authorize_request() -> impl Filter<Extract = (), Error = warp::Rejection> + Clone {
    warp::header::exact("Authorization", "YOUR_AUTH_TOKEN")
        .map(|_| ())
        .untuple_one()
}

// 定义一个处理函数，用于处理授权后的请求
async fn handle_authorized_request() -> Result<impl warp::Reply, warp::Rejection> {
    // 处理授权后的请求逻辑
    Ok(warp::reply::html("Authorized request"))
}

// 定义一个处理函数，用于处理未经授权的请求
async fn handle_unauthorized_request() -> Result<impl warp::Reply, warp::Rejection> {
    // 处理未经授权的请求逻辑
    Ok(warp::reply::html("Unauthorized request"))
}

#[tokio::main]
async fn main() {
    let authorized_route = warp::path("authorized")
        .and(warp::get())
        .and(authorize_request())
        .and_then(handle_authorized_request);

    let unauthorized_route = warp::path("unauthorized")
        .and(warp::get())
        .and_then(handle_unauthorized_request);

    let routes = authorized_route.or(unauthorized_route);

    warp::serve(routes).run(([127, 0, 0, 1], 8080)).await;
}