How implement a login filter in JSF?

You need to implement the javax.servlet. Filter class, do the desired job in doFilter() method and map it on an URL pattern covering the restricted pages user maybe? Inside the doFilter() you should check the presence of the logged-in user in the session somehow.

Assuming that you've a JSF SessionScoped ManagedBean(name="auth") class Authorization for this, then you could get it as a session attribute by its managed bean name.

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