What is CSRF and how does it work in Rails?
CSRF stands for Cross-Site Request Forgery. It's an attack that tricks the user into submitting a request they didn't intend to. In Rails, CSRF protection is built-in and works by including a token in forms that must be submitted with any state-changing requests.
How does Rails generate the CSRF token?
Rails generates a unique CSRF token for each session. This token is included in forms and is verified on the server side when a request is received.
What happens if the CSRF token is missing or invalid?
If the CSRF token is missing or invalid, Rails will reject the request and respond with a 422 Unprocessable Entity status, preventing the action from being executed.
Can I disable CSRF protection in Rails?
Yes, you can disable CSRF protection by modifying the ApplicationController, but it's not recommended as it exposes your application to CSRF attacks.
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