whmcsDNSManager/modules/addons/DNSManager2/mgLibs/custom/mailer/SmartyHelper.php

<?php
namespace MGModule\DNSManager2\mgLibs\custom\mailer;

class SmartyHelper {
    public static function getSmarty() {
        global $templates_compiledir;
        if(WHMCS6) {
            if(!class_exists('SmartyBC')) {
                if(file_exists(MAIN_WHMCS_DIR.DS.'vandor'.DS.'smarty'.DS.'smarty'.DS.'libs'.DS.'SmartyBC.class.php')) {
                    require_once(MAIN_WHMCS_DIR.DS.'vandor'.DS.'smarty'.DS.'smarty'.DS.'libs'.DS.'SmartyBC.class.php');
                } else {
                    die('Smarty does not exists!');
                }
            }
        } else {
            if(!class_exists('Smarty')) {
                if(file_exists(MAIN_WHMCS_DIR.DS.'includes'.DS.'smarty'.DS.'Smarty.class.php')) {
                    require_once(MAIN_WHMCS_DIR.DS.'includes'.DS.'smarty'.DS.'Smarty.class.php');
                } else {
                    die('Smarty does not exists!');
                }
            }
        }
        
        if(WHMCS6)
            $smarty = new \SmartyBC();
        else 
            $smarty = new \Smarty();
        
        $smarty->caching = 0;
        $smarty->compile_dir = $templates_compiledir;
        //$smarty->error_reporting = 0;

        return $smarty;
    }
    
    public static function registerResources($smarty) {
        $smarty->register_resource("fromstr", 
                array(
                    array('MG_SMS_SmartyHelper','fromstr_template'), 
                    array('MG_SMS_SmartyHelper','fromstr_timestamp'), 
                    array('MG_SMS_SmartyHelper','fromstr_secure'), 
                    array('MG_SMS_SmartyHelper','fromstr_trusted'),
                )
        );
    }
    
    public static function fromstr_template($tpl_name, &$tpl_source, &$smarty_obj) {
        $tpl_source = $smarty_obj->get_template_vars($tpl_name);
        return empty($tpl_source)?false:true;
    }

    public static function fromstr_timestamp($tpl_name, &$tpl_timestamp, &$smarty_obj) {
        $tpl_timestamp = time();
        return true;
    }

    public static function fromstr_secure($tpl_name, &$smarty_obj) {
        return true;
    }

    public static function fromstr_trusted($tpl_name, &$smarty_obj) {
        
    }
    
    public static function fetchFromString($string,$data=false) {
        $smarty = self::getSmarty();

        self::registerResources($smarty);
        
        if(is_array($data)) {
            foreach($data as $key => $value) {
                $smarty->assign($key, $value);
            }
        }
        
        $uid = uniqid(); //caching prevent
        $smarty->assign($uid, $string);
        if(WHMCS6)
            return $smarty->fetch('string:'.$string, $uid);
        else 
            return $smarty->fetch('fromstr:'.$uid);
    }
}