Expose source ip of http request

[indexds]

Hi, I'd like to restrict the traffic to my http server to a specific netif, this could be done easily if there was a way to check the source ip of a request to do control flow like;

http_server.fn_handler("/", Method::Get, move |mut request| {

    let html = "hello world";

    let connection = request.connection();

    if connection.get_src_ip()? != Ipv4::new(10, 10, 10, 1) {
        return Err(anyhow::anyhow!("Source ip forbidden"));
    }

    connection.initiate_response(200, Some("OK"), &[("Content-Type", "text/html")])?;

    connection.write(html.as_bytes())?;

    Ok::<(), Error>(())
})?;

I've looked at this forum post which is very interesting but doesn't really help me parse the very opaque http/server.rs to see where I would put this potential method.

• Would you like to implement this feature? yes

A nudge in the right direction would be helpful, or maybe this isn't necessary at all and there's already a way to check this that I haven't found. Who knows.

[indexds]

Ok so I think I've somewhat figured it out, in http/server.rs there's a;

pub struct EspHttpRawConnection<'a>(&'a mut httpd_req_t);

which is what we want. Now to write the method..

[indexds]

Well. That wasn't so hard after all.