dolibarr/htdocs/takepos/genimg/qr.php

<?php
/* Copyright (C) 2020	Andreu Bisquerra	<jove@bisquerra.com>
 *
 * 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/>.
 */

// This page return an image of a QR code

if (!defined("NOLOGIN")) {
	define("NOLOGIN", '1'); // If this page is public (can be called outside logged session)
}
if (!defined('NOIPCHECK')) {
	define('NOIPCHECK', '1'); // Do not check IP defined into conf $dolibarr_main_restrict_ip
}
if (!defined('NOREQUIRESOC')) {
	define('NOREQUIRESOC', '1');
}
if (!defined('NOCSRFCHECK')) {
	define('NOCSRFCHECK', '1');
}
if (!defined('NOTOKENRENEWAL')) {
	define('NOTOKENRENEWAL', '1');
}
if (!defined('NOREQUIREMENU')) {
	define('NOREQUIREMENU', '1');
}
if (!defined('NOREQUIREHTML')) {
	define('NOREQUIREHTML', '1');
}
if (!defined('NOREQUIREAJAX')) {
	define('NOREQUIREAJAX', '1');
}

require '../../main.inc.php'; // Load $user and permissions
require '../../core/modules/barcode/doc/tcpdfbarcode.modules.php';

$urlwithouturlroot = preg_replace('/'.preg_quote(DOL_URL_ROOT, '/').'$/i', '', trim($dolibarr_main_url_root));
$urlwithroot = $urlwithouturlroot.DOL_URL_ROOT; // This is to use external domain name found into config file


/*
 * View
 */

// The buildBarCode does not include the http headers but this is a page that just return an image.

if (GETPOSTISSET("key")) {
	$key = GETPOST('key');
	$module = new modTcpdfbarcode();
	$result = $module->buildBarCode($urlwithroot."/takepos/public/auto_order.php?key=".$key, 'QRCODE', 'Y');
} else {
	$module = new modTcpdfbarcode();
	$result = $module->buildBarCode($urlwithroot."/takepos/public/menu.php", 'QRCODE', 'Y');
}