Need custom snippet inside nginx.conf

[basi01]

Hi.
We need to include a custom code snippet inside nginx.conf. The rules are:
if X-Forwarded-For is present and if X-Forwarded-Proto is not https or missing then send 307 redirect to HTTPS

Does buildpack support that?

    server {
        listen 8080;
        server_name _;
        root /home/vcap/app/web/;
        index index.html index.htm;

        error_page 403 @403-custom;
        error_page 404 @404-custom;
        error_page 503 @503-custom;

set $my_insecure_forwarded 1;

if ($http_x_forwarded_for = '') {
    set $my_insecure_forwarded 0;
}

if ($http_x_forwarded_proto = 'https') {
    set $my_insecure_forwarded 0;
}

if ($my_insecure_forwarded) {
    return 307 https://$host$request_uri;
}