<?php
/* Copyright (C) 2004      Rodolphe Quiedeville  <rodolphe@quiedeville.org>
 * Copyright (C) 2003      Xavier Dutoit         <doli@sydesy.com>
 * Copyright (C) 2004-2009 Laurent Destailleur   <eldy@users.sourceforge.net>
 * Copyright (C) 2005-2012 Regis Houssin         <regis.houssin@inodbox.com>
 * Copyright (C) 2024       Frédéric France         <frederic.france@free.fr>
 *
 * 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 3 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, see <https://www.gnu.org/licenses/>.
 */

/**
 *      \file       htdocs/user/logout.php
 *      \brief      Page called to disconnect a user
 */

//if (! defined('NOTOKENRENEWAL')) define('NOTOKENRENEWAL','1'); // Uncomment creates pb to relogon after a disconnect
if (!defined('NOREQUIREMENU')) {
	define('NOREQUIREMENU', '1');
}
if (!defined('NOREQUIREHTML')) {
	define('NOREQUIREHTML', '1');
}
if (!defined('NOREQUIREAJAX')) {
	define('NOREQUIREAJAX', '1');
}
/* We do now force CSRF check so we can logout using logout.php page (required for DoliDroid for example)
if (!defined('CSRFCHECK_WITH_TOKEN')) {
	define('CSRFCHECK_WITH_TOKEN', '1');
}
*/
//if (! defined('NOREQUIRESOC'))   define('NOREQUIRESOC','1');	// We need company to get correct logo onto home page
if (!defined('EVEN_IF_ONLY_LOGIN_ALLOWED')) {
	define('EVEN_IF_ONLY_LOGIN_ALLOWED', '1');
}

require_once '../main.inc.php';

// This can happen only with a bookmark or a forged url call.
if (!empty($_SESSION["dol_authmode"]) && ($_SESSION["dol_authmode"] == 'forceuser' || $_SESSION["dol_authmode"] == 'http')) {
	unset($_SESSION["dol_login"]);
	unset($_SESSION['dol_entity']);
	unset($_SESSION['urlfrom']);
	die("Applicative disconnection should be useless when connection was made in mode ".$_SESSION["dol_authmode"]);	// TODO Really ? It at least delete the session file ?!
}

/**
 * @var Conf $conf
 * @var DoliDB $db
 * @var HookManager $hookmanager
 * @var Translate $langs
 * @var User $user
 */
$error = 0;

// Call trigger
$result = $user->call_trigger('USER_LOGOUT', $user);
if ($result < 0) {
	$error++;
}
// End call triggers

// Hooks on logout
$action = '';
$hookmanager->initHooks(array('logout'));
$parameters = array();
$reshook = $hookmanager->executeHooks('afterLogout', $parameters, $user, $action); // Note that $action and $object may have been modified by some hooks
if ($reshook < 0) {
	$error++;
}

// Define url to go after disconnect
$urlfrom = empty($_SESSION["urlfrom"]) ? GETPOST('urlfrom') : $_SESSION["urlfrom"];

// Define url to go
$url = DOL_URL_ROOT."/index.php"; // By default go to login page
if ($urlfrom) {
	$url = DOL_URL_ROOT.$urlfrom;
}
if (getDolGlobalString('MAIN_LOGOUT_GOTO_URL')) {
	$url = getDolGlobalString('MAIN_LOGOUT_GOTO_URL');
}

if (GETPOST('dol_hide_topmenu')) {
	$url .= (preg_match('/\?/', $url) ? '&' : '?').'dol_hide_topmenu=1';
}
if (GETPOST('dol_hide_leftmenu')) {
	$url .= (preg_match('/\?/', $url) ? '&' : '?').'dol_hide_leftmenu=1';
}
if (GETPOST('dol_optimize_smallscreen')) {
	$url .= (preg_match('/\?/', $url) ? '&' : '?').'dol_optimize_smallscreen=1';
}
if (GETPOST('dol_no_mouse_hover')) {
	$url .= (preg_match('/\?/', $url) ? '&' : '?').'dol_no_mouse_hover=1';
}
if (GETPOST('dol_use_jmobile')) {
	$url .= (preg_match('/\?/', $url) ? '&' : '?').'dol_use_jmobile=1';
}

// Logout openid_connect sessions using OIDC logout URL if defined
if (getDolGlobalInt('MAIN_MODULE_OPENIDCONNECT', 0) > 0 && !empty($_SESSION['OPENID_CONNECT']) && getDolGlobalString("MAIN_AUTHENTICATION_OIDC_LOGOUT_URL")) {
	// We need the full URL
	if (strpos($url, '/') === 0) {
		$url = DOL_MAIN_URL_ROOT . $url;
	}
	$url = getDolGlobalString('MAIN_AUTHENTICATION_OIDC_LOGOUT_URL') . '?client_id=' . getDolGlobalString('MAIN_AUTHENTICATION_OIDC_CLIENT_ID') . '&returnTo=' . urlencode($url);
}

// Destroy session
dol_syslog("End of session ".session_id());
if (session_status() === PHP_SESSION_ACTIVE) {
	session_destroy();
}


// Not sure this is required
unset($_SESSION['dol_login']);
unset($_SESSION['dol_entity']);
unset($_SESSION['urlfrom']);

if (GETPOST('noredirect')) {
	return;
}
header("Location: ".$url); // Default behaviour is redirect to index.php page