classes/class.ilHTTPS.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2001 ILIAS open source, University of Cologne            |
        |                                                                             |
        | 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; either version 2              |
        | of the License, or (at your option) any later version.                      |
        |                                                                             |
        | 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. |
        +-----------------------------------------------------------------------------+
*/

class ilHTTPS
{
        var $enabled = false;
        var $protected_scripts = array();

        function ilHTTPS()
        {
                global $ilias;

                if($this->enabled = (bool) $ilias->getSetting('https'))
                {
                        $this->__readProtectedScripts();
                }
        }
        
        function checkPort()
        {
                if(!$this->enabled)
                {
                        return true;
                }
                if(in_array(basename($_SERVER["SCRIPT_NAME"]),$this->protected_scripts) and
                   $_SERVER["HTTPS"] != 'on')
                {
                        header("location: https://".$_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"]);
                        exit;
                }
                if(!in_array(basename($_SERVER["SCRIPT_NAME"]),$this->protected_scripts) and
                   $_SERVER["HTTPS"] == 'on')
                {
                        header("location: http://".$_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"]);
                        exit;
                }
                return true;
        }

        function __readProtectedScripts()
        {
                $this->protected_scripts[] = 'login.php';
                $this->protected_scripts[] = 'start_bmf.php';

                return true;
        }

        function _checkHTTPS()
        {
                // only check standard port in the moment
                $port = 443;

                if(($sp = @fsockopen($_SERVER["SERVER_NAME"],$port,$errno,$error)) === false)
                {
                        return false;
                }
                fclose($sp);
                return true;
        }
        function _checkHTTP()
        {
                $port = 80;
                
                if(($sp = @fsockopen($_SERVER["SERVER_NAME"],$port,$errno,$error)) === false)
                {
                        return false;
                }
                fclose($sp);
                return true;
        }       
}
?>