/// Returns whether `host` is one of the ChatGPT hosts Codex is allowed to treat/// as first-party ChatGPT traffic.pub fn is_allowed_chatgpt_host(host: &str) -> bool {    const EXACT_HOSTS: &[&str] = &["chatgpt.com", "chat.openai.com", "chatgpt-staging.com"];    const SUBDOMAIN_SUFFIXES: &[&str] = &[".chatgpt.com", ".chatgpt-staging.com"];    EXACT_HOSTS.contains(&host)        || SUBDOMAIN_SUFFIXES            .iter()            .any(|suffix| host.ends_with(suffix))}#[cfg(test)]mod tests {    use super::*;    #[test]    fn recognizes_chatgpt_hosts_without_suffix_tricks() {        for host in [            "chatgpt.com",            "foo.chatgpt.com",            "staging.chatgpt.com",            "chat.openai.com",            "chatgpt-staging.com",            "api.chatgpt-staging.com",        ] {            assert!(is_allowed_chatgpt_host(host));        }        for host in [            "evilchatgpt.com",            "chatgpt.com.evil.example",            "api.openai.com",            "foo.chat.openai.com",        ] {            assert!(!is_allowed_chatgpt_host(host));        }    }}