How I can limit access to anspress pages?

I’m trying to limit access to certain “pages” created by anspress to users logged in. That is, I would like the public to have access to view only the individual questions (I’m showing only the excerpt), but not the other pages. Is it posible?

This is what I’m trying:

function login_required() {
    global $post;
    if( is_page( array( 'community','user' ) ) && ! is_user_logged_in() ) {
        wp_redirect( home_url() ); 
        exit();
    }
}
add_action( 'template_redirect', 'login_required' );

[edited]

I managed to do it, but in an alternative way. As anspress pages are not “real”, I override user.php and base.php including this code:

<?php if (ap_user_can_ask()): ?>
....

<?php endif; ?>
 <?php ap_get_template_part('login-signup'); ?>