Remember me functionality in Flask - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of the 'Remember me' functionality in web applications?

It allows users to stay logged in on a website even after closing the browser, so they don't have to enter their credentials every time they visit.

beginner

How does Flask-Login help implement 'Remember me' functionality?

Flask-Login manages user sessions and can set a long-lasting cookie when 'Remember me' is checked, keeping the user logged in across browser restarts.

beginner

Which Flask-Login function is used to log in a user with 'Remember me' enabled?

The function is login_user(user, remember=True). Setting remember=True tells Flask-Login to keep the user logged in beyond the session.

intermediate

What security considerations should you keep in mind when using 'Remember me' cookies?

Use secure cookies (HTTPS only), set HttpOnly flag to prevent JavaScript access, limit cookie lifetime, and store minimal sensitive data to reduce risk if stolen.

intermediate

How can you customize the duration of the 'Remember me' cookie in Flask-Login?

Set the REMEMBER_COOKIE_DURATION configuration in Flask app to a timedelta value representing how long the cookie should last.

Which Flask-Login function parameter enables 'Remember me' functionality?

A remember=True

B auto_login=True

C stay_logged_in=True

D persistent_session=True

The login_user function uses the remember=True parameter to enable 'Remember me' functionality.

What does the 'Remember me' cookie do?

A Stores the user's password in the cookie

B Deletes the session immediately after logout

C Keeps the user logged in after closing the browser

D Prevents the user from logging out

The 'Remember me' cookie keeps the user logged in even after the browser is closed.

How can you make the 'Remember me' cookie last longer in Flask?

A Call logout_user() after login

B Use a longer session timeout

C Set SESSION_COOKIE_SECURE to False

D Set REMEMBER_COOKIE_DURATION in app config

You customize the cookie duration by setting REMEMBER_COOKIE_DURATION in the Flask app configuration.

Which security flag helps protect 'Remember me' cookies from JavaScript access?

A HttpOnly

B Secure

C SameSite

D Expires

The HttpOnly flag prevents JavaScript from accessing cookies, improving security.

What Flask extension is commonly used to implement 'Remember me' functionality?

A Flask-Migrate

B Flask-Login

C Flask-WTF

D Flask-Mail

Flask-Login manages user sessions and supports 'Remember me' functionality.

Explain how 'Remember me' functionality works in a Flask web app using Flask-Login.

Think about how Flask-Login keeps the user session alive beyond the normal session.

Describe key security practices to follow when implementing 'Remember me' cookies.

Consider what could happen if someone steals the cookie.