login/logout.php

   1 <?php // $Id$
   2 // Logs the user out and sends them to the home page
   3
   4     require_once("../config.php");
   5
   6     // can be overriden by auth plugins
   7     $redirect = $CFG->wwwroot.'/';
   8
   9     $sesskey = optional_param('sesskey', '__notpresent__', PARAM_RAW); // we want not null default to prevent required sesskey warning
  10
  11     if (!isloggedin()) {
  12         // no confirmation, user has already logged out
  13         require_logout();
  14         redirect($redirect);
  15
  16     } else if (!confirm_sesskey($sesskey)) {
  17         print_header($SITE->fullname, $SITE->fullname, 'home');
  18         notice_yesno(get_string('logoutconfirm'), 'logout.php', $CFG->wwwroot.'/', array('sesskey'=>sesskey()), null, 'post', 'get');
  19         print_footer();
  20         die;
  21     }
  22
  23     $authsequence = get_enabled_auth_plugins(); // auths, in sequence
  24     foreach($authsequence as $authname) {
  25         $authplugin = get_auth_plugin($authname);
  26         $authplugin->logoutpage_hook();
  27     }
  28
  29     require_logout();
  30
  31     redirect($redirect);
  32
  33 ?>