acl

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use fastly::{Error, Request, Response};

#[fastly::main]
fn main(req: Request) -> Result<Response, Error> {
    let acl = fastly::Acl::open("my_acl").expect("can open acl");

    let ip = req.get_client_ip_addr().expect("request has an ip");

    let lookup = acl.try_lookup(ip)?;
    match lookup {
        Some(lookup_match) if lookup_match.is_allow() => {
            // IP is allowed.
            Ok(Response::from_body("allowed!"))
        }
        Some(_) => {
            // IP is not allowed.
            Ok(Response::from_status(403).with_body("blocked!"))
        }
        None => {
            // No prefixes matched the IP.
            Ok(Response::from_body("no match"))
        }
    }
}