Proteger el acceso al RSS de un blog de WordPress

Hay varias formas de proteger el acceso al rss de un blog de wordpress, pero lo hacen redirigiendo a la página de inicio de sesión.
En algunos lectores de feed, esto no funciona ya que requieren autenticación por http para poder agregar el feed. Este plugin permite esta opción.

< ?php /* Plugin Name: Silencesoft Protect RSS Plugin URI: http://www.silencesoft.net Description: A plugin to protect rss feeds to only registered users Version: 1.0 Author: Byron Herrera Author URI: http://byronh.axul.net Copyright 2010 Byron Herrera (email : bh at axul dot net) This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ function sil_protect_rss() { global $wpdb; if (! is_feed()) return; if (!isset($_SERVER['PHP_AUTH_USER'])) { header('WWW-Authenticate: Basic realm="RSS Feeds"'); header('HTTP/1.1 401 Unauthorized'); echo 'This rss feeds requires authentication.'; exit; } else { if (user_pass_ok($_SERVER['PHP_AUTH_USER'],$_SERVER['PHP_AUTH_PW'])) { // can proceed normally } else { header('WWW-Authenticate: Basic realm="RSS Feeds"'); header('HTTP/1.1 401 Unauthorized'); echo 'Error on username or password.'; exit; } } } add_action('pre_get_posts', 'sil_protect_rss');
O puede descargarlo de: http://www.silencesoft.net/Wordpress/