You’ve built your tool in ncurses, and it works. Now it’s time to integrate OAuth scopes management without wrecking the interface or security model.
Ncurses gives you precise, text-based UI control for Unix systems. OAuth scopes define exactly what resources a token can access. The challenge is wiring them together so your terminal app enforces scope boundaries without breaking its flow.
Start with the OAuth provider’s scope definitions. Map them to your app’s privileges. Keep them in a clear, centralized configuration file. Avoid hardcoding scope strings deep in code; this makes future audits and changes risky. Use constants or enums to represent scope values in your ncurses application layer.
Handle OAuth token requests outside the main ncurses loop. Let the ncurses UI call a dedicated authentication function that retrieves tokens with the requested scopes. This keeps your scope logic isolated and testable.
Tokens should be validated before granting any UI-driven operation. If the current token lacks the required scope, show a precise error in the ncurses window. No vague messages. No fallback access.