piwigo/include/user.inc.php

<?php
// +-----------------------------------------------------------------------+
// | PhpWebGallery - a PHP based picture gallery                           |
// | Copyright (C) 2002-2003 Pierrick LE GALL - pierrick@phpwebgallery.net |
// | Copyright (C) 2003-2006 PhpWebGallery Team - http://phpwebgallery.net |
// +-----------------------------------------------------------------------+
// | branch        : BSF (Best So Far)
// | file          : $RCSfile$
// | last update   : $Date$
// | last modifier : $Author$
// | revision      : $Revision$
// +-----------------------------------------------------------------------+
// | 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                                          |
// |                                                                       |
// | 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
// | USA.                                                                  |
// +-----------------------------------------------------------------------+

// by default we start with guest
$user['id'] = $conf['guest_id'];

if (isset($_COOKIE[session_name()]))
{
  session_start();
  if (isset($_GET['act']) and $_GET['act'] == 'logout')
  { // logout
    $_SESSION = array();
    session_unset();
    session_destroy();
    setcookie(session_name(),'',0,
        ini_get('session.cookie_path'),
        ini_get('session.cookie_domain')
      );
    setcookie($conf['remember_me_name'], '', 0, cookie_path());
    redirect(make_index_url());
  }
  elseif (!empty($_SESSION['pwg_uid']))
  {
    $user['id'] = $_SESSION['pwg_uid'];
  }
}

// Now check the auto-login
if ( $user['id']==$conf['guest_id'] )
{
  auto_login();
}

if (session_id()=="")
{
  session_start();
}

// using Apache authentication override the above user search
if ($conf['apache_authentication'] and isset($_SERVER['REMOTE_USER']))
{
  if (!($user['id'] = get_userid($_SERVER['REMOTE_USER'])))
  {
    register_user($_SERVER['REMOTE_USER'], '', '');
    $user['id'] = get_userid($_SERVER['REMOTE_USER']);
  }
}

$user = build_user( $user['id'],
          ( defined('IN_ADMIN') and IN_ADMIN ) ? false : true // use cache ?
         );

trigger_action('user_init', $user);
?>