Hide Gravity Forms uploads from users without login
add_filter( 'gform_permission_granted_pre_download', function() {
// If user is logged in
if ( is_user_logged_in() ) {
return true;
} else {
// Redirects to the homepage
echo '<html><meta http-equiv="Refresh" content="0; url=' . site_url() . '" /></html>';
return false;
}
});