Try to add extra screen after login asking to confirm admin email

[draganescu]

What is it?

This is a PR with a demo of how the "Is your/this admin email still correct" Trac ticket could function.
Reference Trac Ticket ID: 46349 (link)

How it works

• A new filter function wp_confirm_admin_email hooks into login_redirect
  • and returns the normal redirect, unless
  • the email has not been confirmed in ADMIN_EMAIL_MAX_AGE time
    • The login process is redirected to action=confirm_admin_email
    • Which checks for manage_options
      • redirects to normal redirect if user doesn't have the cap. or
      • displays the admin email confirm form, otherwise
    • The admin email confirm form, in wp-login.php
      • postpones the confirm, with a remind me later link
        • which sets an option named admin_email_lifespan, also
      • submits a confirmed email address
        • which is updated using the same update_option_new_admin_email function used in the options screen
        • sets an option named admin_email_lifespan
  • The user end up redirected to the original intented redirect

How to test

Switch to the branch and update in default-constants.php the ADMIN_EMAIL_MAX_AGE to a number that makes sense for testing. Make sure your local WP is able to send emails. Login and you should see the new screen.

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[draganescu]

opened draganescu#1 here instead