Like in Hakuneko, provide a way for user to log into the website. Either by manual interaction (opening a browser window) either automatically (user has filled his login info in settings)
Random ideas :
If you provide both, make sure both works, or just provide ONLY ONE. If you put a login link allowing manual login when only automatic login will work it will be confusing when wanting to diagnose problem.
Make use of tags "Automatic login", "Manual Login" for scraper, maybe?
Provide the plugin a way to interact with the user by pushing custom message, or custom (localized) errors like "LOGIN REQUIRED" idk.
This require per-plugin settings implementation :)
Allow the use of a master password to encrypt credential data. Still wonder about how secure we should make that and what cipher to use.
Like in Hakuneko, provide a way for user to log into the website. Either by manual interaction (opening a browser window) either automatically (user has filled his login info in settings)
Random ideas :