Limit access to BuddyPress components for users without a valid Paid Memberships Pro membership level

pmpro-buddypress-membership-protection.php

<?php
/*
Plugin Name: PMPro/BuddyPress members only access
Plugin URI: http://www.paidmembershipspro.com/wp/pmpro-customizations/
Description: Limit access to BuddyPress pages/components for non-members.
Version: .1
Author: Thomas Sjolshagen @ Stranger Studios <[email protected]>
Author URI: http://www.eighty20results.com/thomas-sjolshagen
*/

function pmpro_buddypress_restrict_page_access() {

	global $pmpro_pages;
	global $bp;

	if ( bp_is_activity_component() ||
	     bp_is_groups_component() /*|| bbp_is_single_forum()*/ ||
	     bp_is_forums_component() ||
	     bp_is_blogs_component() ||
	     bp_is_page( BP_MEMBERS_SLUG ) ) {

		if( false == pmpro_hasMembershipLevel() ) {

			// send to the levels page if the user doesn't have a valid membership
			wp_redirect( get_permalink( $pmpro_pages['levels'] ) );
		}
	}
}
add_filter('get_header','pmpro_buddypress_restrict_page_access', 1 );