Rename email.rs to username.rs for auth server

auth/src/robocraft/username.rs

@@ -0,0 +1,31 @@
+use rc_core::UserAuthenticator;
+use rocket::{post, routes, serde::json::Json, http::Status, State};
+
+#[post("/authenticate/robocraft/game", data = "<body>")]
+pub async fn email_password_auth(body: Json<libfj::robocraft::EmailUserAuthenticationPayload>, config: &State<crate::common::cli::Config>) -> Result<Json<libfj::robocraft::AuthenticationResponseInfo>, Status> {
+    log::info!("Authenticating {} user {}", body.target, body.display_name);
+    let payload = libfj::robocraft::TokenPayload {
+        public_id: body.display_name.clone(),
+        display_name: body.display_name.clone(),
+        robocraft_name: body.display_name.clone(),
+        email_address: body.email_address.clone(),
+        email_verified: true,
+        flags: Vec::new(),
+    };
+    let user_info = rc_core::persist::user::UserInfo {
+        payload,
+        extra: rc_core::persist::user::ExtraUserInfo::Standalone { password: body.password.clone() },
+    };
+    let response = config.robocraft.account_provider.login(user_info).await
+        .map_err(|e| {
+            log::error!("Failed to authenticate {} user {}: {}", body.target, body.display_name, e);
+            Status { code: 401 }
+        })?;
+    Ok(Json(response.response))
+}
+
+pub fn stage() -> rocket::fairing::AdHoc {
+    rocket::fairing::AdHoc::on_ignite("Robocraft Email/Password", |rocket| async {
+        rocket.mount("/", routes![email_password_auth])
+    })
+}