WordPress 4.7 CDN URL Update

gistfile1.txt

add_filter('upload_dir', 'cdn_upload_url');
function cdn_upload_url($args)
{
	$current_user = wp_get_current_user();
	$current_user_id = $current_user->ID;
	$is_id_user = ($current_user_id > 0) ? true : false;
	switch($is_id_user)
	{
		case true:
			$admin_users = array('administrator', 'editor', 'author'); //Add roles that you don't want to CDN swap
			$user_roles = wp_get_current_user()->roles;
			$admin_roles = array_intersect($user_roles, $admin_users);
			if(count($admin_roles) > 0) return $args;
			break;

		default:
			$args['baseurl'] = 'https://your.awesomecdn.net/wp-content/uploads'; //Change to your base CDN directory - no trailing slash
			return $args;
	}
}