/usr/share/squirrelmail/themes/css/index.php is in squirrelmail 2:1.4.23~svn20120406-2.
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 14 15 16 17 | <?php
/**
* index.php
*
* This file simply takes any attempt to view source files and sends those
* people to the login screen. At this point no attempt is made to see if the
* person is logged in or not.
*
* @copyright 1999-2012 The SquirrelMail Project Team
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
* @version $Id: index.php 14248 2012-01-02 00:18:17Z pdontthink $
* @package squirrelmail
* @subpackage themes
*/
header('Location: ../index.php');
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