Function material_value

crates/openshell-server/src/provider_refresh.rs:668–677

(material: &HashMap<String, String>, keys: &[&str])

}

fn material_value(material: &HashMap<String, String>, keys: &[&str]) -> Option<String> {
    for key in keys {
        if let Some(value) = material.get(*key).map(|value| value.trim())
            && !value.is_empty()
        {
            return Some(value.to_string());
        }
    }
    None
}

fn is_loopback_host(host: &str) -> bool {
    matches!(host, "localhost" | "127.0.0.1" | "::1")