Auth related cleanups.

Cleanup; additional error macros.

Signed-off-by: Jason Volk <jason@zemos.net>

src/api/client/session/mod.rs

@@ -81,7 +81,7 @@ pub(crate) async fn login_route(
 	};
 
 	// Generate a new token for the device
-	let token = utils::random_string(TOKEN_LENGTH);
+	let access_token = utils::random_string(TOKEN_LENGTH);
 
 	// Generate new device id if the user didn't specify one
 	let device_id = body
@@ -102,7 +102,7 @@ pub(crate) async fn login_route(
 			.create_device(
 				&user_id,
 				&device_id,
-				&token,
+				&access_token,
 				body.initial_device_display_name.clone(),
 				Some(client.to_string()),
 			)
@@ -110,28 +110,32 @@ pub(crate) async fn login_route(
 	} else {
 		services
 			.users
-			.set_token(&user_id, &device_id, &token)
+			.set_token(&user_id, &device_id, &access_token)
 			.await?;
 	}
 
+	info!("{user_id} logged in");
+
+	let home_server = services.server.name.clone().into();
+
 	// send client well-known if specified so the client knows to reconfigure itself
-	let client_discovery_info: Option<DiscoveryInfo> = services
+	let well_known: Option<DiscoveryInfo> = services
 		.config
 		.well_known
 		.client
 		.as_ref()
-		.map(|server| DiscoveryInfo::new(HomeserverInfo::new(server.to_string())));
-
-	info!("{user_id} logged in");
+		.map(ToString::to_string)
+		.map(HomeserverInfo::new)
+		.map(DiscoveryInfo::new);
 
 	#[allow(deprecated)]
 	Ok(login::v3::Response {
 		user_id,
-		access_token: token,
+		access_token,
 		device_id,
-		well_known: client_discovery_info,
+		home_server,
+		well_known,
 		expires_in: None,
-		home_server: Some(services.config.server_name.clone()),
 		refresh_token: None,
 	})
 }

src/api/router/auth.rs

@@ -50,6 +50,7 @@ pub(super) async fn auth(
 ) -> Result<Auth> {
 	let bearer: Option<TypedHeader<Authorization<Bearer>>> =
 		request.parts.extract().await.unwrap_or(None);
+
 	let token = match &bearer {
 		| Some(TypedHeader(Authorization(bearer))) => Some(bearer.token()),
 		| None => request.query.access_token.as_deref(),
@@ -81,10 +82,9 @@ pub(super) async fn auth(
 							// already
 						},
 						| Token::None | Token::Invalid => {
-							return Err(Error::BadRequest(
-								ErrorKind::MissingToken,
-								"Missing or invalid access token.",
-							));
+							return Err!(Request(MissingToken(
+								"Missing or invalid access token."
+							)));
 						},
 					}
 				}
@@ -105,10 +105,9 @@ pub(super) async fn auth(
 							// already
 						},
 						| Token::None | Token::Invalid => {
-							return Err(Error::BadRequest(
-								ErrorKind::MissingToken,
-								"Missing or invalid access token.",
-							));
+							return Err!(Request(MissingToken(
+								"Missing or invalid access token."
+							)));
 						},
 					}
 				}
@@ -139,10 +138,10 @@ pub(super) async fn auth(
 						appservice_info: None,
 					})
 				} else {
-					Err(Error::BadRequest(ErrorKind::MissingToken, "Missing access token."))
+					Err!(Request(MissingToken("Missing access token.")))
 				}
 			},
-			| _ => Err(Error::BadRequest(ErrorKind::MissingToken, "Missing access token.")),
+			| _ => Err!(Request(MissingToken("Missing access token."))),
 		},
 		| (
 			AuthScheme::AccessToken | AuthScheme::AccessTokenOptional | AuthScheme::None,
@@ -165,14 +164,10 @@ pub(super) async fn auth(
 			appservice_info: None,
 		}),
 		| (AuthScheme::ServerSignatures, Token::Appservice(_) | Token::User(_)) =>
-			Err(Error::BadRequest(
-				ErrorKind::Unauthorized,
-				"Only server signatures should be used on this endpoint.",
-			)),
-		| (AuthScheme::AppserviceToken, Token::User(_)) => Err(Error::BadRequest(
-			ErrorKind::Unauthorized,
-			"Only appservice access tokens should be used on this endpoint.",
-		)),
+			Err!(Request(Unauthorized("Only server signatures should be used on this endpoint."))),
+		| (AuthScheme::AppserviceToken, Token::User(_)) => Err!(Request(Unauthorized(
+			"Only appservice access tokens should be used on this endpoint."
+		))),
 		| (AuthScheme::None, Token::Invalid) => {
 			// OpenID federation endpoint uses a query param with the same name, drop this
 			// once query params for user auth are removed from the spec. This is

src/service/uiaa/mod.rs

@@ -6,12 +6,12 @@ use std::{
 use ruma::{
 	CanonicalJsonValue, DeviceId, OwnedDeviceId, OwnedUserId, UserId,
 	api::client::{
-		error::ErrorKind,
+		error::{ErrorKind, StandardErrorBody},
 		uiaa::{AuthData, AuthType, Password, UiaaInfo, UserIdentifier},
 	},
 };
 use tuwunel_core::{
-	Err, Error, Result, err, error, implement, utils,
+	Err, Result, err, error, implement, utils,
 	utils::{hash, string::EMPTY},
 };
 use tuwunel_database::{Deserialized, Json, Map};
@@ -67,14 +67,15 @@ pub async fn read_tokens(&self) -> Result<HashSet<String>> {
 		.as_ref()
 	{
 		match std::fs::read_to_string(file) {
+			| Err(e) => error!("Failed to read the registration token file: {e}"),
 			| Ok(text) => {
 				text.split_ascii_whitespace().for_each(|token| {
 					tokens.insert(token.to_owned());
 				});
 			},
-			| Err(e) => error!("Failed to read the registration token file: {e}"),
 		}
 	}
+
 	if let Some(token) = &self.services.config.registration_token {
 		tokens.insert(token.to_owned());
 	}
@@ -93,25 +94,14 @@ pub fn create(
 ) {
 	// TODO: better session error handling (why is uiaainfo.session optional in
 	// ruma?)
-	self.set_uiaa_request(
-		user_id,
-		device_id,
-		uiaainfo
-			.session
-			.as_ref()
-			.expect("session should be set"),
-		json_body,
-	);
+	let session = uiaainfo
+		.session
+		.as_ref()
+		.expect("session should be set");
 
-	self.update_uiaa_session(
-		user_id,
-		device_id,
-		uiaainfo
-			.session
-			.as_ref()
-			.expect("session should be set"),
-		Some(uiaainfo),
-	);
+	self.set_uiaa_request(user_id, device_id, session, json_body);
+
+	self.update_uiaa_session(user_id, device_id, session, Some(uiaainfo));
 }
 
 #[implement(Service)]
@@ -148,40 +138,35 @@ pub async fn try_auth(
 			} else if let Some(username) = user {
 				username
 			} else {
-				return Err(Error::BadRequest(
-					ErrorKind::Unrecognized,
-					"Identifier type not recognized.",
-				));
+				return Err!(Request(Unrecognized("Identifier type not recognized.")));
 			};
 
 			#[cfg(not(feature = "element_hacks"))]
 			let Some(UserIdentifier::UserIdOrLocalpart(username)) = identifier else {
-				return Err(Error::BadRequest(
-					ErrorKind::Unrecognized,
-					"Identifier type not recognized.",
-				));
+				return Err!(Request(Unrecognized("Identifier type not recognized.")));
 			};
 
 			let user_id_from_username = UserId::parse_with_server_name(
 				username.clone(),
 				self.services.globals.server_name(),
 			)
-			.map_err(|_| Error::BadRequest(ErrorKind::InvalidParam, "User ID is invalid."))?;
+			.map_err(|_| err!(Request(InvalidParam("User ID is invalid."))))?;
 
 			// Check if the access token being used matches the credentials used for UIAA
 			if user_id.localpart() != user_id_from_username.localpart() {
 				return Err!(Request(Forbidden("User ID and access token mismatch.")));
 			}
-			let user_id = user_id_from_username;
 
 			// Check if password is correct
+			let user_id = user_id_from_username;
 			if let Ok(hash) = self.services.users.password_hash(&user_id).await {
 				let hash_matches = hash::verify_password(password, &hash).is_ok();
 				if !hash_matches {
-					uiaainfo.auth_error = Some(ruma::api::client::error::StandardErrorBody {
+					uiaainfo.auth_error = Some(StandardErrorBody {
 						kind: ErrorKind::forbidden(),
 						message: "Invalid username or password.".to_owned(),
 					});
+
 					return Ok((false, uiaainfo));
 				}
 			}
@@ -196,10 +181,11 @@ pub async fn try_auth(
 					.completed
 					.push(AuthType::RegistrationToken);
 			} else {
-				uiaainfo.auth_error = Some(ruma::api::client::error::StandardErrorBody {
+				uiaainfo.auth_error = Some(StandardErrorBody {
 					kind: ErrorKind::forbidden(),
 					message: "Invalid registration token.".to_owned(),
 				});
+
 				return Ok((false, uiaainfo));
 			}
 		},
@@ -221,30 +207,19 @@ pub async fn try_auth(
 		completed = true;
 	}
 
+	let session = uiaainfo
+		.session
+		.as_ref()
+		.expect("session is always set");
+
 	if !completed {
-		self.update_uiaa_session(
-			user_id,
-			device_id,
-			uiaainfo
-				.session
-				.as_ref()
-				.expect("session is always set"),
-			Some(&uiaainfo),
-		);
+		self.update_uiaa_session(user_id, device_id, session, Some(&uiaainfo));
 
 		return Ok((false, uiaainfo));
 	}
 
 	// UIAA was successful! Remove this session and return true
-	self.update_uiaa_session(
-		user_id,
-		device_id,
-		uiaainfo
-			.session
-			.as_ref()
-			.expect("session is always set"),
-		None,
-	);
+	self.update_uiaa_session(user_id, device_id, session, None);
 
 	Ok((true, uiaainfo))
 }
@@ -258,6 +233,7 @@ fn set_uiaa_request(
 	request: &CanonicalJsonValue,
 ) {
 	let key = (user_id.to_owned(), device_id.to_owned(), session.to_owned());
+
 	self.userdevicesessionid_uiaarequest
 		.write()
 		.expect("locked for writing")
@@ -271,13 +247,8 @@ pub fn get_uiaa_request(
 	device_id: Option<&DeviceId>,
 	session: &str,
 ) -> Option<CanonicalJsonValue> {
-	let key = (
-		user_id.to_owned(),
-		device_id
-			.unwrap_or_else(|| EMPTY.into())
-			.to_owned(),
-		session.to_owned(),
-	);
+	let device_id = device_id.unwrap_or_else(|| EMPTY.into());
+	let key = (user_id.to_owned(), device_id.to_owned(), session.to_owned());
 
 	self.userdevicesessionid_uiaarequest
 		.read()
@@ -313,6 +284,7 @@ async fn get_uiaa_session(
 	session: &str,
 ) -> Result<UiaaInfo> {
 	let key = (user_id, device_id, session);
+
 	self.db
 		.userdevicesessionid_uiaainfo
 		.qry(&key)