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<?php

/**
 * ---------------------------------------------------------------------
 *
 * GLPI - Gestionnaire Libre de Parc Informatique
 *
 * http://glpi-project.org
 *
 * @copyright 2015-2022 Teclib' and contributors.
 * @copyright 2003-2014 by the INDEPNET Development Team.
 * @licence   https://www.gnu.org/licenses/gpl-3.0.html
 *
 * ---------------------------------------------------------------------
 *
 * LICENSE
 *
 * This file is part of GLPI.
 *
 * 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/>.
 *
 * ---------------------------------------------------------------------
 */

use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\SMTP;

/** GLPIPhpMailer class
 *
 * @since 0.85
 **/
class GLPIMailer extends PHPMailer
{
    /**
     * Constructor
     *
     **/
    public function __construct()
    {
        global $CFG_GLPI;

        $this->WordWrap           = 80;

        $this->CharSet            = "utf-8";

       // Comes from config
        $this->SetLanguage("en", Config::getLibraryDir("PHPMailer") . "/language/");

        if ($CFG_GLPI['smtp_mode'] != MAIL_MAIL) {
            $this->Mailer = "smtp";
            $this->Host   = $CFG_GLPI['smtp_host'] . ':' . $CFG_GLPI['smtp_port'];

            if ($CFG_GLPI['smtp_username'] != '') {
                $this->SMTPAuth = true;
                $this->Username = $CFG_GLPI['smtp_username'];
                $this->Password = (new GLPIKey())->decrypt($CFG_GLPI['smtp_passwd']);
            }

            if ($CFG_GLPI['smtp_mode'] == MAIL_SMTPSSL) {
                $this->SMTPSecure = "ssl";
            } else if ($CFG_GLPI['smtp_mode'] == MAIL_SMTPTLS) {
                $this->SMTPSecure = "tls";
            } else {
               // Don't automatically enable encryption if the GLPI config doesn't specify it
                $this->SMTPAutoTLS = false;
            }

            if (!$CFG_GLPI['smtp_check_certificate']) {
                $this->SMTPOptions = ['ssl' => ['verify_peer'       => false,
                    'verify_peer_name'  => false,
                    'allow_self_signed' => true
                ]
                ];
            }
            if ($CFG_GLPI['smtp_sender'] != '') {
                $this->Sender = $CFG_GLPI['smtp_sender'];
            }
        }

        if ($_SESSION['glpi_use_mode'] == Session::DEBUG_MODE) {
            $this->SMTPDebug = SMTP::DEBUG_CONNECTION;
            $this->Debugoutput = function ($message, $level) {
                Toolbox::logInFile(
                    'mail-debug',
                    "$level - $message"
                );
            };
        }
    }

    public static function validateAddress($address, $patternselect = "pcre8")
    {
        if (empty($address)) {
            return false;
        }
        $isValid = parent::validateAddress($address, $patternselect);
        if (!$isValid && str_ends_with($address, '@localhost')) {
           //since phpmailer6, @localhost address are no longer valid...
            $isValid = parent::ValidateAddress($address . '.me');
        }
        return $isValid;
    }

    public function setLanguage($langcode = 'en', $lang_path = '')
    {
        if ($lang_path == '') {
            $local_path = dirname(Config::getLibraryDir('PHPMailer\PHPMailer\PHPMailer'))  . '/language/';
            if (is_dir($local_path)) {
                $lang_path = $local_path;
            }
        }
        parent::setLanguage($langcode, $lang_path);
    }
}