codemp/src/api/config.rs

//! # Config
//! Data structure defining clients configuration

/// Configuration struct for the `codemp` client.
///
/// `username` and `password` are required fields, everything else is optional.
///
/// `host`, `port` and `tls` affect all connections to all gRPC services; the
/// resulting endpoint is composed like this:
///     http{tls?'s':''}://{host}:{port}
#[derive(Clone, Default)]
#[cfg_attr(feature = "js", napi_derive::napi(object))]
#[cfg_attr(feature = "py", pyo3::pyclass(get_all, set_all))]
#[cfg_attr(feature = "serialize", derive(serde::Serialize, serde::Deserialize))]
pub struct Config {
	/// User identifier used to register, possibly your email.
	pub username: String,
	/// User password chosen upon registration.
	pub password: String, // must not leak this!
	/// Address of server to connect to, default api.code.mp.
	pub host: Option<String>,
	/// Port to connect to, default 50053.
	pub port: Option<u16>,
	/// Enable or disable tls, default true.
	pub tls: Option<bool>,
}

impl Config {
	/// Construct a new Config object, with given username and password.
	pub fn new(username: impl ToString, password: impl ToString) -> Self {
		Self {
			username: username.to_string(),
			password: password.to_string(),
			host: None,
			port: None,
			tls: None,
		}
	}

	#[inline]
	pub(crate) fn host(&self) -> &str {
		self.host.as_deref().unwrap_or("api.code.mp")
	}

	#[inline]
	pub(crate) fn port(&self) -> u16 {
		self.port.unwrap_or(50053)
	}

	#[inline]
	pub(crate) fn tls(&self) -> bool {
		self.tls.unwrap_or(true)
	}

	pub(crate) fn endpoint(&self) -> String {
		format!(
			"{}://{}:{}",
			if self.tls() { "https" } else { "http" },
			self.host(),
			self.port()
		)
	}
}

// manual impl: we want to obfuscate the password field!!
// TODO: can we just tag password to be obfuscated in debug print?
//       reimplementing the whole Debug thing is pretty lame
impl std::fmt::Debug for Config {
	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
		if f.alternate() {
			write!(f,
r#"""Config {{
    username: {},
    password: ********,
    host: {:#?},
    port: {:#?},
    tls: {:#?}
}}"""#,
				self.username, self.host, self.port, self.tls
			)
		} else {
			write!(f, "Config {{ username: {}, password: ********, host: {:?}, port: {:?}, tls: {:?} }}", self.username, self.host, self.port, self.tls)
		}
	}
}