security upgrade

src/security.rs

@@ -107,7 +107,7 @@ fn resource_cookie_name(kind: &str, slug: &str) -> String {
     format!("__Host-rustpad_access_{}", hex::encode(&digest[..12]))
 }
 
-fn cookie_value<'a>(headers: &'a HeaderMap, name: &str) -> Option<&'a str> {
+pub fn cookie_value<'a>(headers: &'a HeaderMap, name: &str) -> Option<&'a str> {
     headers
         .get(header::COOKIE)
         .and_then(|value| value.to_str().ok())