functions/auth.php

   1 <?php
   2
   3 /**
   4  * auth.php
   5  *
   6  * Copyright (c) 1999-2002 The SquirrelMail Project Team
   7  * Licensed under the GNU GPL. For full terms see the file COPYING.
   8  *
   9  * Contains functions used to do authentication.
  10  *
  11  * $Id$
  12  */
  13
  14 require_once( '../functions/page_header.php' );
  15
  16 /* If a user opens a new session then comes back to this one,
  17  * $base_uri isn't set because it the session is invalid.
  18  */
  19
  20 if (! isset($base_uri)) {
  21     ereg ('(^.*/)[^/]+/[^/]+$', $PHP_SELF, $regs);
  22     $base_uri = $regs[1];
  23
  24 }
  25
  26 function is_logged_in () {
  27     global $squirrelmail_language, $frame_top, $base_uri;
  28
  29     if ( session_is_registered('user_is_logged_in') ) {
  30         return;
  31     } else {
  32
  33         if (!isset($frame_top) || $frame_top == '' ) {
  34             $frame_top = '_top';
  35         }
  36
  37         set_up_language($squirrelmail_language, true);
  38
  39         displayHtmlHeader( _("You must be logged in to access this page.") );
  40
  41         echo "<body bgcolor=\"ffffff\">\n" .
  42              '&nbsp;<p><center><b>' .
  43              _("You must be logged in to access this page.").'</b><br><br>' .
  44              '<a href="' . $base_uri . '" target="' . $frame_top . '">' .
  45              _("Go to the login page") . "</a>\n" .
  46              "</center></body></html>\n";
  47         exit;
  48     }
  49 }
  50
  51 ?>