MailMessage.php

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<?php
namespace ‪TYPO3\CMS\Core\Mail;
 
/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */
 
use ‪TYPO3\CMS\Core\Utility\MailUtility;
 
class ‪MailMessage extends \Swift_Message
{
    protected ‪$mailer;
 
    protected ‪$mailerHeader = 'TYPO3';
 
    protected ‪$sent = false;
 
    protected ‪$failedRecipients = [];
 
    private function ‪initializeMailer()
    {
        $this->mailer = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(\‪TYPO3\CMS\Core\Mail\Mailer::class);
    }
 
    public function ‪send()
    {
        // Ensure to always have a From: header set
        if (empty($this->getFrom())) {
            $this->‪setFrom(‪MailUtility::getSystemFrom());
        }
        if (empty($this->getReplyTo())) {
            $replyTo = ‪MailUtility::getSystemReplyTo();
            if (!empty($replyTo)) {
                $this->‪setReplyTo($replyTo);
            }
        }
        $this->‪initializeMailer();
        $this->sent = true;
        $this->getHeaders()->addTextHeader('X-Mailer', $this->mailerHeader);
        return $this->mailer->send($this, $this->failedRecipients);
    }
 
    public function ‪isSent()
    {
        return ‪$this->sent;
    }
 
    public function ‪getFailedRecipients()
    {
        return ‪$this->failedRecipients;
    }
 
    public function ‪setReturnPath($address)
    {
        $address = $this->‪idnaEncodeAddresses($address);
        return parent::setReturnPath($address);
    }
 
    public function ‪setSender($address, $name = null)
    {
        $address = $this->‪idnaEncodeAddresses($address);
        return parent::setSender($address, $name);
    }
 
    public function ‪setFrom($addresses, $name = null)
    {
        $addresses = $this->‪idnaEncodeAddresses($addresses);
        return parent::setFrom($addresses, $name);
    }
 
    public function ‪setReplyTo($addresses, $name = null)
    {
        $addresses = $this->‪idnaEncodeAddresses($addresses);
        return parent::setReplyTo($addresses, $name);
    }
 
    public function ‪setTo($addresses, $name = null)
    {
        $addresses = $this->‪idnaEncodeAddresses($addresses);
        return parent::setTo($addresses, $name);
    }
 
    public function ‪setCc($addresses, $name = null)
    {
        $addresses = $this->‪idnaEncodeAddresses($addresses);
        return parent::setCc($addresses, $name);
    }
 
    public function ‪setBcc($addresses, $name = null)
    {
        $addresses = $this->‪idnaEncodeAddresses($addresses);
        return parent::setBcc($addresses, $name);
    }
 
    public function ‪setReadReceiptTo($addresses)
    {
        $addresses = $this->‪idnaEncodeAddresses($addresses);
        return parent::setReadReceiptTo($addresses);
    }
 
    protected function ‪idnaEncodeAddresses($addresses)
    {
        if (!is_array($addresses)) {
            return $this->‪idnaEncodeAddress($addresses);
        }
        $newAddresses = [];
        foreach ($addresses as $email => $name) {
            if (ctype_digit($email)) {
                $newAddresses[] = $this->‪idnaEncodeAddress($name);
            } else {
                $newAddresses[$this->‪idnaEncodeAddress($email)] = $name;
            }
        }
 
        return $newAddresses;
    }
 
    protected function ‪idnaEncodeAddress($email)
    {
        // Early return in case input is not a string
        if (!is_string($email)) {
            return $email;
        }
        // Split on the last "@" since adresses like "foo@bar"@example.org are valid
        $atPosition = strrpos($email, '@');
        if (!$atPosition || $atPosition + 1 === strlen($email)) {
            // Return if no @ found or it is placed at the very beginning or end of the email
            return $email;
        }
        $domain = substr($email, $atPosition + 1);
        $local = substr($email, 0, $atPosition);
        $domain = \TYPO3\CMS\Core\Utility\GeneralUtility::idnaEncode($domain);
 
        return $local . '@' . $domain;
    }
}