saml2-logout.php

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<?php
/* Copyright (c) 1998-2017 ILIAS open source, Extended GPL, see docs/LICENSE */

$cookie_path          = dirname(str_replace($_SERVER['PATH_INFO'], '', $_SERVER['PHP_SELF']));

$_GET['client_id']    = substr(rtrim($_SERVER['PATH_INFO'], '/'), strrpos($_SERVER['PATH_INFO'], '/') + 1);
$_SERVER['PATH_INFO'] = substr($_SERVER['PATH_INFO'], 0, strrpos(rtrim($_SERVER['PATH_INFO'], '/'), '/'));

chdir(dirname(__FILE__));

$ilias_main_directory = './';

$i = 0;
while(!file_exists($ilias_main_directory . 'ilias.ini.php') && $i < 20)
{
        $ilias_main_directory .= '../';
        ++$i;

        $cookie_path = dirname($cookie_path);
}
chdir($ilias_main_directory);

if(!file_exists(getcwd() . '/ilias.ini.php'))
{
        die('Please ensure ILIAS is installed!');
}

$cookie_path .= (!preg_match("/[\/|\\\\]$/", $cookie_path)) ? "/" : "";

if(isset($_GET["client_id"]))
{
        if($cookie_path == "\\")
        {
                $cookie_path = '/';
        }

        setcookie('ilClientId', $_GET['client_id'], 0, $cookie_path, '');
        $_COOKIE['ilClientId'] = $_GET['client_id'];
}
define('IL_COOKIE_PATH', $cookie_path);

require_once 'Services/Context/classes/class.ilContext.php';
ilContext::init(ilContext::CONTEXT_SAML);

require_once 'Services/Init/classes/class.ilInitialisation.php';
ilInitialisation::initILIAS();

require_once 'Services/Saml/classes/class.ilSamlAuthFactory.php';
$factory = new ilSamlAuthFactory();
$auth = $factory->auth();

ilSession::setClosingContext(ilSession::SESSION_CLOSE_USER);
$GLOBALS['DIC']['ilAuthSession']->logout();

$GLOBALS['ilAppEventHandler']->raise(
        'Services/Authentication',
        'afterLogout',
        array(
                'username' => $GLOBALS['DIC']->user()->getLogin()
        )
);

require_once 'libs/composer/vendor/simplesamlphp/simplesamlphp/modules/saml/www/sp/saml2-logout.php';