Add get_permitted_menu_items in auth manager

[vincbeck]

Currently the menu in Airflow UI is using the filter is_menu_visible to display or not each menu item. Each call to is_menu_visible calls has_access which then call an is_authorized_ method from the auth manager used in the environment. Most likely, all auth managers (with the exception of fab) will call an external service for every is_authorized_ method. Today, displaying the menu call 26 times an is_authorized_ method which can be very expensive and make the Airflow UI slower.

Introducing get_permitted_menu_items which is responsible of returning the menu given user permissions can replace these 26 calls to one (if the service used by the auth manager is capable of multiple authz requests in one API).

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[o-nikolas]

Are you planning to add the override of that method for the amazon auth provider in a followup PR?

[vincbeck]

Are you planning to add the override of that method for the amazon auth provider in a followup PR?

Yes