address.php

<?php
namespace Bitrix\Main\Mail;
use Bitrix\Main\Text\Emoji;
 
class Address
{
    protected $name = null;
 
    protected $email = null;
    private $checkingPunycode;
 
    public static function isValid($address)
    {
        return (new static($address))->validate();
    }
 
    public function __construct($address = null, $options = [])
    {
        if (array_key_exists('checkingPunycode', $options))
        {
            $this->setCheckingPunycode($options['checkingPunycode']);
        }
        if ($address)
        {
            $this->set($address);
        }
    }
 
    public function setCheckingPunycode($checkingPunycode)
    {
        $this->checkingPunycode = (bool)$checkingPunycode;
    }
 
    public function getEncoded()
    {
        if (!$this->email)
        {
            return null;
        }
 
        if ($this->name)
        {
            $address = sprintf(
                '%s <%s>',
                sprintf('=?%s?B?%s?=', SITE_CHARSET, base64_encode($this->name)),
                $this->email
            );
        }
        else
        {
            $address = "<{$this->email}>";
        }
 
        return $address;
    }
 
    public function get()
    {
        if (!$this->email)
        {
            return null;
        }
 
        $address = '';
        if ($this->name)
        {
            $address = $this->name . ' ';
        }
 
        $address .= "<{$this->email}>";
 
        return $address;
    }
 
    public function set($address)
    {
        $this->parse($address);
        return $this;
    }
 
    public function getName()
    {
        return Emoji::decode($this->name);
    }
 
    public function setName($name)
    {
        $name = trim($name, "\x20\t\n\r\0\x0b");
        if ($name != '')
        {
            $name = str_replace(
                array('\\', '"', '<', '>'),
                array('/', '\'', '(', ')'),
                $name
            );
        }
 
        $this->name = $name;
        return $this;
    }
 
    public function getEmail()
    {
        return $this->email;
    }
 
    public function setEmail($email)
    {
        $email = mb_strtolower(trim($email));
        if (!$this->checkMail($email))
        {
            $email = null;
        }
 
        $this->email = $email;
        return $this;
    }
 
 
 
    public function validate()
    {
        return !empty($this->email);
    }
 
    protected function parse($address)
    {
        $this->setName('');
        $this->setEmail('');
 
        if (!$address)
        {
            return;
        }
 
        if (preg_match('/(.*)<(.+?)>\s*$/is', $address, $matches))
        {
            $this->setName($matches[1]);
            $this->setEmail($matches[2]);
        }
        else
        {
            $this->setEmail($address);
        }
    }
 
    private function checkMail($email)
    {
        if (check_email($email, true))
        {
            return true;
        }
        if ($this->checkingPunycode)
        {
            $addressWithPunycodeDomain = $this->convertAddressToPunycode($email);
            if ($addressWithPunycodeDomain)
            {
                return check_email($addressWithPunycodeDomain, true);
            }
        }
 
        return false;
    }
 
    private function convertAddressToPunycode($email)
    {
        if (count(explode('@', $email)) === 2)
        {
            $domainPart = array_pop(explode('@', $email));
            if ($domainPart)
            {
                $emailAddressName = array_shift(explode('@', $email));
                $encoder = new \CBXPunycode();
                if ($encodedDomain = $encoder->encode($domainPart))
                {
                    return $emailAddressName . '@' . $encodedDomain;
                }
            }
        }
        return false;
    }
}