WC_Download_Handler::check_download_login_required PHP Method

    private static function check_download_login_required($download)
    {
        if ($download->get_user_id() && 'yes' === get_option('woocommerce_downloads_require_login')) {
            if (!is_user_logged_in()) {
                if (wc_get_page_id('myaccount')) {
                    wp_safe_redirect(add_query_arg('wc_error', urlencode(__('You must be logged in to download files.', 'woocommerce')), wc_get_page_permalink('myaccount')));
                    exit;
                } else {
                    self::download_error(__('You must be logged in to download files.', 'woocommerce') . ' <a href="' . esc_url(wp_login_url(wc_get_page_permalink('myaccount'))) . '" class="wc-forward">' . __('Login', 'woocommerce') . '</a>', __('Log in to Download Files', 'woocommerce'), 403);
                }
            } elseif (!current_user_can('download_file', $download)) {
                self::download_error(__('This is not your download link.', 'woocommerce'), '', 403);
            }
        }
    }