/etc/horde/nag/routes.php is in php-horde-nag 4.2.1-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13  | <?php
/**
 * Setup default routes
 */
$mapper->connect('/t/complete',
    array(
        'controller' => 'CompleteTask',
    ));
$mapper->connect('/t/save',
    array(
        'controller' => 'SaveTask',
    ));
 |