<?php

class PHPMailer
{
    const CHARSET_ISO88591 = 'iso-8859-1';
    const CHARSET_UTF8 = 'utf-8';
    const CONTENT_TYPE_PLAINTEXT = 'text/plain';
    const CONTENT_TYPE_TEXT_CALENDAR = 'text/calendar';
    const CONTENT_TYPE_TEXT_HTML = 'text/html';
    const CONTENT_TYPE_MULTIPART_ALTERNATIVE = 'multipart/alternative';
    const CONTENT_TYPE_MULTIPART_MIXED = 'multipart/mixed';
    const CONTENT_TYPE_MULTIPART_RELATED = 'multipart/related';
    const ENCODING_7BIT = '7bit';
    const ENCODING_8BIT = '8bit';
    const ENCODING_BASE64 = 'base64';
    const ENCODING_BINARY = 'binary';
    const ENCODING_QUOTED_PRINTABLE = 'quoted-printable';

    public $Priority;

    public $CharSet = self::CHARSET_ISO88591;

    public $ContentType = self::CONTENT_TYPE_PLAINTEXT;

    public $Encoding = self::ENCODING_8BIT;

    public $ErrorInfo = '';

    public $From = 'root@localhost';

    public $FromName = 'Root User';

    public $Sender = '';

    public $Subject = '';

    public $Body = '';

    public $AltBody = '';

    public $Ical = '';

    protected $MIMEBody = '';

    protected $MIMEHeader = '';

    protected $mailHeader = '';

    public $WordWrap = 0;

    public $Mailer = 'mail';

    public $Sendmail = '/usr/sbin/sendmail';

    public $UseSendmailOptions = true;

    public $ConfirmReadingTo = '';

    public $Hostname = '';

    public $MessageID = '';

    public $MessageDate = '';

    public $Host = 'localhost';

    public $Port = 25;

    public $Helo = '';

    public $SMTPSecure = '';

    public $SMTPAutoTLS = true;

    public $SMTPAuth = false;

    public $SMTPOptions = [];

    public $Username = '';

    public $Password = '';

    public $AuthType = '';

    protected $oauth;

    public $Timeout = 300;

    public $dsn = '';

    public $SMTPDebug = 0;

    public $Debugoutput = 'echo';

    public $SMTPKeepAlive = false;

    public $SingleTo = false;

    protected $SingleToArray = [];

    public $do_verp = false;

    public $AllowEmpty = false;

    public $DKIM_selector = '';

    public $DKIM_identity = '';

    public $DKIM_passphrase = '';

    public $DKIM_domain = '';

    public $DKIM_copyHeaderFields = true;

    public $DKIM_extraHeaders = [];

    public $DKIM_private = '';

    public $DKIM_private_string = '';

    public $action_function = '';

    public $XMailer = '';

    public static $validator = 'php';

    protected $smtp;

    protected $to = [];

    protected $cc = [];

    protected $bcc = [];

    protected $ReplyTo = [];

    protected $all_recipients = [];

    protected $RecipientsQueue = [];

    protected $ReplyToQueue = [];

    protected $attachment = [];

    protected $CustomHeader = [];

    protected $lastMessageID = '';

    protected $message_type = '';

    protected $boundary = [];

    protected $language = [];

    protected $error_count = 0;

    protected $sign_cert_file = '';

    protected $sign_key_file = '';

    protected $sign_extracerts_file = '';

    protected $sign_key_pass = '';

    protected $exceptions = false;

    protected $uniqueid = '';

    const VERSION = '6.0.7';

    const STOP_MESSAGE = 0;

    const STOP_CONTINUE = 1;

    const STOP_CRITICAL = 2;

    protected static $LE = "\r\n";

    const MAX_LINE_LENGTH = 998;

    const STD_LINE_LENGTH = 76;

    public function __construct($exceptions = null)
    {
        if (null !== $exceptions) {
            $this->exceptions = (bool)$exceptions;
        }
        $this->Debugoutput = (strpos(PHP_SAPI, 'cli') !== false ? 'echo' : 'html');
    }

    public function __destruct()
    {
        $this->smtpClose();
    }

    private function mailPassthru($to, $subject, $body, $header, $params)
    {
        if (ini_get('mbstring.func_overload') & 1) {
            $subject = $this->secureHeader($subject);
        } else {
            $subject = $this->encodeHeader($this->secureHeader($subject));
        }
        if (!$this->UseSendmailOptions or null === $params) {
            $result = @mail($to, $subject, $body, $header);
        } else {
            $result = @mail($to, $subject, $body, $header, $params);
        }
        return $result;
    }

    protected function edebug($str)
    {
        if ($this->SMTPDebug <= 0) {
            return;
        }
        if ($this->Debugoutput instanceof \Psr\Log\LoggerInterface) {
            $this->Debugoutput->debug($str);
            return;
        }
        if (!in_array($this->Debugoutput, ['error_log', 'html', 'echo']) and is_callable($this->Debugoutput)) {
            call_user_func($this->Debugoutput, $str, $this->SMTPDebug);
            return;
        }
        switch ($this->Debugoutput) {
            case 'error_log':
                error_log($str);
                break;
            case 'html':
                echo htmlentities(
                    preg_replace('/[\r\n]+/', '', $str),
                    ENT_QUOTES,
                    'UTF-8'
                ), "<br>\n";
                break;
            case 'echo':
            default:
                $str = preg_replace('/\r\n|\r/ms', "\n", $str);
                echo gmdate('Y-m-d H:i:s'),
                "\t",
                trim(
                    str_replace(
                        "\n",
                        "\n                   \t                  ",
                        trim($str)
                    )
                ),
                "\n";
        }
    }

    public function isHTML($isHtml = true)
    {
        if ($isHtml) {
            $this->ContentType = static::CONTENT_TYPE_TEXT_HTML;
        } else {
            $this->ContentType = static::CONTENT_TYPE_PLAINTEXT;
        }
    }

    public function isSMTP()
    {
        $this->Mailer = 'smtp';
    }

    public function isMail()
    {
        $this->Mailer = 'mail';
    }

    public function isSendmail()
    {
        $ini_sendmail_path = ini_get('sendmail_path');
        if (false === stripos($ini_sendmail_path, 'sendmail')) {
            $this->Sendmail = '/usr/sbin/sendmail';
        } else {
            $this->Sendmail = $ini_sendmail_path;
        }
        $this->Mailer = 'sendmail';
    }

    public function isQmail()
    {
        $ini_sendmail_path = ini_get('sendmail_path');
        if (false === stripos($ini_sendmail_path, 'qmail')) {
            $this->Sendmail = '/var/qmail/bin/qmail-inject';
        } else {
            $this->Sendmail = $ini_sendmail_path;
        }
        $this->Mailer = 'qmail';
    }

    public function addAddress($address, $name = '')
    {
        return $this->addOrEnqueueAnAddress('to', $address, $name);
    }

    public function addCC($address, $name = '')
    {
        return $this->addOrEnqueueAnAddress('cc', $address, $name);
    }

    public function addBCC($address, $name = '')
    {
        return $this->addOrEnqueueAnAddress('bcc', $address, $name);
    }

    public function addReplyTo($address, $name = '')
    {
        return $this->addOrEnqueueAnAddress('Reply-To', $address, $name);
    }

    protected function addOrEnqueueAnAddress($kind, $address, $name)
    {
        $address = trim($address);
        $name = trim(preg_replace('/[\r\n]+/', '', $name));
        $pos = strrpos($address, '@');
        if (false === $pos) {
            $error_message = sprintf('%s (%s): %s',
                $this->lang('invalid_address'),
                $kind,
                $address);
            $this->setError($error_message);
            $this->edebug($error_message);
            if ($this->exceptions) {
                throw new Exception($error_message);
            }
            return false;
        }
        $params = [$kind, $address, $name];
        if ($this->has8bitChars(substr($address, ++$pos)) and static::idnSupported()) {
            if ('Reply-To' != $kind) {
                if (!array_key_exists($address, $this->RecipientsQueue)) {
                    $this->RecipientsQueue[$address] = $params;
                    return true;
                }
            } else {
                if (!array_key_exists($address, $this->ReplyToQueue)) {
                    $this->ReplyToQueue[$address] = $params;
                    return true;
                }
            }
            return false;
        }
        return call_user_func_array([$this, 'addAnAddress'], $params);
    }

    protected function addAnAddress($kind, $address, $name = '')
    {
        if (!in_array($kind, ['to', 'cc', 'bcc', 'Reply-To'])) {
            $error_message = sprintf('%s: %s',
                $this->lang('Invalid recipient kind'),
                $kind);
            $this->setError($error_message);
            $this->edebug($error_message);
            if ($this->exceptions) {
                throw new Exception($error_message);
            }
            return false;
        }
        if (!static::validateAddress($address)) {
            $error_message = sprintf('%s (%s): %s',
                $this->lang('invalid_address'),
                $kind,
                $address);
            $this->setError($error_message);
            $this->edebug($error_message);
            if ($this->exceptions) {
                throw new Exception($error_message);
            }
            return false;
        }
        if ('Reply-To' != $kind) {
            if (!array_key_exists(strtolower($address), $this->all_recipients)) {
                $this->{$kind}[] = [$address, $name];
                $this->all_recipients[strtolower($address)] = true;
                return true;
            }
        } else {
            if (!array_key_exists(strtolower($address), $this->ReplyTo)) {
                $this->ReplyTo[strtolower($address)] = [$address, $name];
                return true;
            }
        }
        return false;
    }

    public static function parseAddresses($addrstr, $useimap = true)
    {
        $addresses = [];
        if ($useimap and function_exists('imap_rfc822_parse_adrlist')) {
            $list = imap_rfc822_parse_adrlist($addrstr, '');
            foreach ($list as $address) {
                if ('.SYNTAX-ERROR.' != $address->host) {
                    if (static::validateAddress($address->mailbox . '@' . $address->host)) {
                        $addresses[] = [
                            'name' => (property_exists($address, 'personal') ? $address->personal : ''),
                            'address' => $address->mailbox . '@' . $address->host,
                        ];
                    }
                }
            }
        } else {
            $list = explode(',', $addrstr);
            foreach ($list as $address) {
                $address = trim($address);
                if (strpos($address, '<') === false) {
                    if (static::validateAddress($address)) {
                        $addresses[] = [
                            'name' => '',
                            'address' => $address,
                        ];
                    }
                } else {
                    list($name, $email) = explode('<', $address);
                    $email = trim(str_replace('>', '', $email));
                    if (static::validateAddress($email)) {
                        $addresses[] = [
                            'name' => trim(str_replace(['"', "'"], '', $name)),
                            'address' => $email,
                        ];
                    }
                }
            }
        }
        return $addresses;
    }

    public function setFrom($address, $name = '', $auto = true)
    {
        $address = trim($address);
        $name = trim(preg_replace('/[\r\n]+/', '', $name));
        $pos = strrpos($address, '@');
        if (false === $pos or
            (!$this->has8bitChars(substr($address, ++$pos)) or !static::idnSupported()) and
            !static::validateAddress($address)) {
            $error_message = sprintf('%s (From): %s',
                $this->lang('invalid_address'),
                $address);
            $this->setError($error_message);
            $this->edebug($error_message);
            if ($this->exceptions) {
                throw new Exception($error_message);
            }
            return false;
        }
        $this->From = $address;
        $this->FromName = $name;
        if ($auto) {
            if (empty($this->Sender)) {
                $this->Sender = $address;
            }
        }
        return true;
    }

    public function getLastMessageID()
    {
        return $this->lastMessageID;
    }

    public static function validateAddress($address, $patternselect = null)
    {
        if (null === $patternselect) {
            $patternselect = static::$validator;
        }
        if (is_callable($patternselect)) {
            return call_user_func($patternselect, $address);
        }
        if (strpos($address, "\n") !== false or strpos($address, "\r") !== false) {
            return false;
        }
        switch ($patternselect) {
            case 'pcre':
            case 'pcre8':

                return (bool)preg_match(
                    '/^(?!(?>(?1)"?(?>\\\[ -~]|[^"])"?(?1)){255,})(?!(?>(?1)"?(?>\\\[ -~]|[^"])"?(?1)){65,}@)' .
                    '((?>(?>(?>((?>(?>(?>\x0D\x0A)?[\t ])+|(?>[\t ]*\x0D\x0A)?[\t ]+)?)(\((?>(?2)' .
                    '(?>[\x01-\x08\x0B\x0C\x0E-\'*-\[\]-\x7F]|\\\[\x00-\x7F]|(?3)))*(?2)\)))+(?2))|(?2))?)' .
                    '([!#-\'*+\/-9=?^-~-]+|"(?>(?2)(?>[\x01-\x08\x0B\x0C\x0E-!#-\[\]-\x7F]|\\\[\x00-\x7F]))*' .
                    '(?2)")(?>(?1)\.(?1)(?4))*(?1)@(?!(?1)[a-z0-9-]{64,})(?1)(?>([a-z0-9](?>[a-z0-9-]*[a-z0-9])?)' .
                    '(?>(?1)\.(?!(?1)[a-z0-9-]{64,})(?1)(?5)){0,126}|\[(?:(?>IPv6:(?>([a-f0-9]{1,4})(?>:(?6)){7}' .
                    '|(?!(?:.*[a-f0-9][:\]]){8,})((?6)(?>:(?6)){0,6})?::(?7)?))|(?>(?>IPv6:(?>(?6)(?>:(?6)){5}:' .
                    '|(?!(?:.*[a-f0-9]:){6,})(?8)?::(?>((?6)(?>:(?6)){0,4}):)?))?(25[0-5]|2[0-4][0-9]|1[0-9]{2}' .
                    '|[1-9]?[0-9])(?>\.(?9)){3}))\])(?1)$/isD',
                    $address
                );
            case 'html5':

                return (bool)preg_match(
                    '/^[a-zA-Z0-9.!#$%&\'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}' .
                    '[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/sD',
                    $address
                );
            case 'php':
            default:
                return (bool)filter_var($address, FILTER_VALIDATE_EMAIL);
        }
    }

    public static function idnSupported()
    {
        return function_exists('idn_to_ascii') and function_exists('mb_convert_encoding');
    }

    public function punyencodeAddress($address)
    {
        $pos = strrpos($address, '@');
        if (static::idnSupported() and
            !empty($this->CharSet) and
            false !== $pos
        ) {
            $domain = substr($address, ++$pos);
            if ($this->has8bitChars($domain) and @mb_check_encoding($domain, $this->CharSet)) {
                $domain = mb_convert_encoding($domain, 'UTF-8', $this->CharSet);
                $errorcode = 0;
                $punycode = idn_to_ascii($domain, $errorcode, INTL_IDNA_VARIANT_UTS46);
                if (false !== $punycode) {
                    return substr($address, 0, $pos) . $punycode;
                }
            }
        }
        return $address;
    }

    public function send()
    {
        try {
            if (!$this->preSend()) {
                return false;
            }
            return $this->postSend();
        } catch (Exception $exc) {
            $this->mailHeader = '';
            $this->setError($exc->getMessage());
            if ($this->exceptions) {
                throw $exc;
            }
            return false;
        }
    }

    public function preSend()
    {
        if ('smtp' == $this->Mailer or
            ('mail' == $this->Mailer and stripos(PHP_OS, 'WIN') === 0)
        ) {
            static::setLE("\r\n");
        } else {
            static::setLE(PHP_EOL);
        }
        if (ini_get('mail.add_x_header') == 1
            and 'mail' == $this->Mailer
            and stripos(PHP_OS, 'WIN') === 0
            and ((version_compare(PHP_VERSION, '7.0.0', '>=')
                    and version_compare(PHP_VERSION, '7.0.17', '<'))
                or (version_compare(PHP_VERSION, '7.1.0', '>=')
                    and version_compare(PHP_VERSION, '7.1.3', '<')))
        ) {
            trigger_error(
                'Your version of PHP is affected by a bug that may result in corrupted messages.' .
                ' To fix it, switch to sending using SMTP, disable the mail.add_x_header option in' .
                ' your php.ini, switch to MacOS or Linux, or upgrade your PHP to version 7.0.17+ or 7.1.3+.',
                E_USER_WARNING
            );
        }
        try {
            $this->error_count = 0;
            $this->mailHeader = '';
            foreach (array_merge($this->RecipientsQueue, $this->ReplyToQueue) as $params) {
                $params[1] = $this->punyencodeAddress($params[1]);
                call_user_func_array([$this, 'addAnAddress'], $params);
            }
            if (count($this->to) + count($this->cc) + count($this->bcc) < 1) {
                throw new Exception($this->lang('provide_address'), self::STOP_CRITICAL);
            }
            foreach (['From', 'Sender', 'ConfirmReadingTo'] as $address_kind) {
                $this->$address_kind = trim($this->$address_kind);
                if (empty($this->$address_kind)) {
                    continue;
                }
                $this->$address_kind = $this->punyencodeAddress($this->$address_kind);
                if (!static::validateAddress($this->$address_kind)) {
                    $error_message = sprintf('%s (%s): %s',
                        $this->lang('invalid_address'),
                        $address_kind,
                        $this->$address_kind);
                    $this->setError($error_message);
                    $this->edebug($error_message);
                    if ($this->exceptions) {
                        throw new Exception($error_message);
                    }
                    return false;
                }
            }
            if ($this->alternativeExists()) {
                $this->ContentType = static::CONTENT_TYPE_MULTIPART_ALTERNATIVE;
            }
            $this->setMessageType();
            if (!$this->AllowEmpty and empty($this->Body)) {
                throw new Exception($this->lang('empty_message'), self::STOP_CRITICAL);
            }
            $this->Subject = trim($this->Subject);
            $this->MIMEHeader = '';
            $this->MIMEBody = $this->createBody();
            $tempheaders = $this->MIMEHeader;
            $this->MIMEHeader = $this->createHeader();
            $this->MIMEHeader .= $tempheaders;
            if ('mail' == $this->Mailer) {
                if (count($this->to) > 0) {
                    $this->mailHeader .= $this->addrAppend('To', $this->to);
                } else {
                    $this->mailHeader .= $this->headerLine('To', 'undisclosed-recipients:;');
                }
                $this->mailHeader .= $this->headerLine(
                    'Subject',
                    $this->encodeHeader($this->secureHeader($this->Subject))
                );
            }
            if (!empty($this->DKIM_domain)
                and !empty($this->DKIM_selector)
                and (!empty($this->DKIM_private_string)
                    or (!empty($this->DKIM_private)
                        and static::isPermittedPath($this->DKIM_private)
                        and file_exists($this->DKIM_private)
                    )
                )
            ) {
                $header_dkim = $this->DKIM_Add(
                    $this->MIMEHeader . $this->mailHeader,
                    $this->encodeHeader($this->secureHeader($this->Subject)),
                    $this->MIMEBody
                );
                $this->MIMEHeader = rtrim($this->MIMEHeader, "\r\n ") . static::$LE .
                    static::normalizeBreaks($header_dkim) . static::$LE;
            }
            return true;
        } catch (Exception $exc) {
            $this->setError($exc->getMessage());
            if ($this->exceptions) {
                throw $exc;
            }
            return false;
        }
    }

    public function postSend()
    {
        try {
            switch ($this->Mailer) {
                case 'sendmail':
                case 'qmail':
                    return $this->sendmailSend($this->MIMEHeader, $this->MIMEBody);
                case 'smtp':
                    return $this->smtpSend($this->MIMEHeader, $this->MIMEBody);
                case 'mail':
                    return $this->mailSend($this->MIMEHeader, $this->MIMEBody);
                default:
                    $sendMethod = $this->Mailer . 'Send';
                    if (method_exists($this, $sendMethod)) {
                        return $this->$sendMethod($this->MIMEHeader, $this->MIMEBody);
                    }
                    return $this->mailSend($this->MIMEHeader, $this->MIMEBody);
            }
        } catch (Exception $exc) {
            $this->setError($exc->getMessage());
            $this->edebug($exc->getMessage());
            if ($this->exceptions) {
                throw $exc;
            }
        }
        return false;
    }

    protected function sendmailSend($header, $body)
    {
        if (!empty($this->Sender) and self::isShellSafe($this->Sender)) {
            if ('qmail' == $this->Mailer) {
                $sendmailFmt = '%s -f%s';
            } else {
                $sendmailFmt = '%s -oi -f%s -t';
            }
        } else {
            if ('qmail' == $this->Mailer) {
                $sendmailFmt = '%s';
            } else {
                $sendmailFmt = '%s -oi -t';
            }
        }
        $sendmail = sprintf($sendmailFmt, escapeshellcmd($this->Sendmail), $this->Sender);
        if ($this->SingleTo) {
            foreach ($this->SingleToArray as $toAddr) {
                $mail = @popen($sendmail, 'w');
                if (!$mail) {
                    throw new Exception($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL);
                }
                fwrite($mail, 'To: ' . $toAddr . "\n");
                fwrite($mail, $header);
                fwrite($mail, $body);
                $result = pclose($mail);
                $this->doCallback(
                    ($result == 0),
                    [$toAddr],
                    $this->cc,
                    $this->bcc,
                    $this->Subject,
                    $body,
                    $this->From,
                    []
                );
                if (0 !== $result) {
                    throw new Exception($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL);
                }
            }
        } else {
            $mail = @popen($sendmail, 'w');
            if (!$mail) {
                throw new Exception($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL);
            }
            fwrite($mail, $header);
            fwrite($mail, $body);
            $result = pclose($mail);
            $this->doCallback(
                ($result == 0),
                $this->to,
                $this->cc,
                $this->bcc,
                $this->Subject,
                $body,
                $this->From,
                []
            );
            if (0 !== $result) {
                throw new Exception($this->lang('execute') . $this->Sendmail, self::STOP_CRITICAL);
            }
        }
        return true;
    }

    protected static function isShellSafe($string)
    {
        if (escapeshellcmd($string) !== $string
            or !in_array(escapeshellarg($string), ["'$string'", "\"$string\""])
        ) {
            return false;
        }
        $length = strlen($string);
        for ($i = 0; $i < $length; ++$i) {
            $c = $string[$i];
            if (!ctype_alnum($c) && strpos('@_-.', $c) === false) {
                return false;
            }
        }
        return true;
    }

    protected static function isPermittedPath($path)
    {
        return !preg_match('#^[a-z]+://#i', $path);
    }

    protected function mailSend($header, $body)
    {
        $toArr = [];
        foreach ($this->to as $toaddr) {
            $toArr[] = $this->addrFormat($toaddr);
        }
        $to = implode(', ', $toArr);
        $params = null;
        if (!empty($this->Sender) and static::validateAddress($this->Sender)) {
            if (self::isShellSafe($this->Sender)) {
                $params = sprintf('-f%s', $this->Sender);
            }
        }
        if (!empty($this->Sender) and static::validateAddress($this->Sender)) {
            $old_from = ini_get('sendmail_from');
            ini_set('sendmail_from', $this->Sender);
        }
        $result = false;
        if ($this->SingleTo and count($toArr) > 1) {
            foreach ($toArr as $toAddr) {
                $result = $this->mailPassthru($toAddr, $this->Subject, $body, $header, $params);
                $this->doCallback($result, [$toAddr], $this->cc, $this->bcc, $this->Subject, $body, $this->From, []);
            }
        } else {
            $result = $this->mailPassthru($to, $this->Subject, $body, $header, $params);
            $this->doCallback($result, $this->to, $this->cc, $this->bcc, $this->Subject, $body, $this->From, []);
        }
        if (isset($old_from)) {
            ini_set('sendmail_from', $old_from);
        }
        if (!$result) {
            throw new Exception($this->lang('instantiate'), self::STOP_CRITICAL);
        }
        return true;
    }

    public function getSMTPInstance()
    {
        if (!is_object($this->smtp)) {
            $this->smtp = new SMTP();
        }
        return $this->smtp;
    }

    public function setSMTPInstance(SMTP $smtp)
    {
        $this->smtp = $smtp;
        return $this->smtp;
    }

    protected function smtpSend($header, $body)
    {
        $bad_rcpt = [];
        if (!$this->smtpConnect($this->SMTPOptions)) {
            throw new Exception($this->lang('smtp_connect_failed'), self::STOP_CRITICAL);
        }
        if ('' == $this->Sender) {
            $smtp_from = $this->From;
        } else {
            $smtp_from = $this->Sender;
        }
        if (!$this->smtp->mail($smtp_from)) {
            $this->setError($this->lang('from_failed') . $smtp_from . ' : ' . implode(',', $this->smtp->getError()));
            throw new Exception($this->ErrorInfo, self::STOP_CRITICAL);
        }
        $callbacks = [];
        foreach ([$this->to, $this->cc, $this->bcc] as $togroup) {
            foreach ($togroup as $to) {
                if (!$this->smtp->recipient($to[0], $this->dsn)) {
                    $error = $this->smtp->getError();
                    $bad_rcpt[] = ['to' => $to[0], 'error' => $error['detail']];
                    $isSent = false;
                } else {
                    $isSent = true;
                }
                $callbacks[] = ['issent' => $isSent, 'to' => $to[0]];
            }
        }
        if ((count($this->all_recipients) > count($bad_rcpt)) and !$this->smtp->data($header . $body)) {
            throw new Exception($this->lang('data_not_accepted'), self::STOP_CRITICAL);
        }
        $smtp_transaction_id = $this->smtp->getLastTransactionID();
        if ($this->SMTPKeepAlive) {
            $this->smtp->reset();
        } else {
            $this->smtp->quit();
            $this->smtp->close();
        }
        foreach ($callbacks as $cb) {
            $this->doCallback(
                $cb['issent'],
                [$cb['to']],
                [],
                [],
                $this->Subject,
                $body,
                $this->From,
                ['smtp_transaction_id' => $smtp_transaction_id]
            );
        }
        if (count($bad_rcpt) > 0) {
            $errstr = '';
            foreach ($bad_rcpt as $bad) {
                $errstr .= $bad['to'] . ': ' . $bad['error'];
            }
            throw new Exception(
                $this->lang('recipients_failed') . $errstr,
                self::STOP_CONTINUE
            );
        }
        return true;
    }

    public function smtpConnect($options = null)
    {
        if (null === $this->smtp) {
            $this->smtp = $this->getSMTPInstance();
        }
        if (null === $options) {
            $options = $this->SMTPOptions;
        }
        if ($this->smtp->connected()) {
            return true;
        }
        $this->smtp->setTimeout($this->Timeout);
        $this->smtp->setDebugLevel($this->SMTPDebug);
        $this->smtp->setDebugOutput($this->Debugoutput);
        $this->smtp->setVerp($this->do_verp);
        $hosts = explode(';', $this->Host);
        $lastexception = null;
        foreach ($hosts as $hostentry) {
            $hostinfo = [];
            if (!preg_match(
                '/^((ssl|tls):\/\/)*([a-zA-Z0-9\.-]*|\[[a-fA-F0-9:]+\]):?([0-9]*)$/',
                trim($hostentry),
                $hostinfo
            )) {
                static::edebug($this->lang('connect_host') . ' ' . $hostentry);
                continue;
            }

            if (!static::isValidHost($hostinfo[3])) {
                static::edebug($this->lang('connect_host') . ' ' . $hostentry);
                continue;
            }
            $prefix = '';
            $secure = $this->SMTPSecure;
            $tls = ('tls' == $this->SMTPSecure);
            if ('ssl' == $hostinfo[2] or ('' == $hostinfo[2] and 'ssl' == $this->SMTPSecure)) {
                $prefix = 'ssl://';
                $tls = false;
                $secure = 'ssl';
            } elseif ('tls' == $hostinfo[2]) {
                $tls = true;
                $secure = 'tls';
            }
            $sslext = defined('OPENSSL_ALGO_SHA256');
            if ('tls' === $secure or 'ssl' === $secure) {
                if (!$sslext) {
                    throw new Exception($this->lang('extension_missing') . 'openssl', self::STOP_CRITICAL);
                }
            }
            $host = $hostinfo[3];
            $port = $this->Port;
            $tport = (int)$hostinfo[4];
            if ($tport > 0 and $tport < 65536) {
                $port = $tport;
            }
            if ($this->smtp->connect($prefix . $host, $port, $this->Timeout, $options)) {
                try {
                    if ($this->Helo) {
                        $hello = $this->Helo;
                    } else {
                        $hello = $this->serverHostname();
                    }
                    $this->smtp->hello($hello);
                    if ($this->SMTPAutoTLS and $sslext and 'ssl' != $secure and $this->smtp->getServerExt('STARTTLS')) {
                        $tls = true;
                    }
                    if ($tls) {
                        if (!$this->smtp->startTLS()) {
                            throw new Exception($this->lang('connect_host'));
                        }
                        $this->smtp->hello($hello);
                    }
                    if ($this->SMTPAuth) {
                        if (!$this->smtp->authenticate(
                            $this->Username,
                            $this->Password,
                            $this->AuthType,
                            $this->oauth
                        )
                        ) {
                            throw new Exception($this->lang('authenticate'));
                        }
                    }
                    return true;
                } catch (Exception $exc) {
                    $lastexception = $exc;
                    $this->edebug($exc->getMessage());
                    $this->smtp->quit();
                }
            }
        }
        $this->smtp->close();
        if ($this->exceptions and null !== $lastexception) {
            throw $lastexception;
        }
        return false;
    }

    public function smtpClose()
    {
        if (null !== $this->smtp) {
            if ($this->smtp->connected()) {
                $this->smtp->quit();
                $this->smtp->close();
            }
        }
    }

    public function setLanguage($langcode = 'en', $lang_path = '')
    {
        $renamed_langcodes = [
            'br' => 'pt_br',
            'cz' => 'cs',
            'dk' => 'da',
            'no' => 'nb',
            'se' => 'sv',
            'rs' => 'sr',
            'tg' => 'tl',
        ];
        if (isset($renamed_langcodes[$langcode])) {
            $langcode = $renamed_langcodes[$langcode];
        }
        $PHPMAILER_LANG = [
            'authenticate' => 'SMTP Error: Could not authenticate.',
            'connect_host' => 'SMTP Error: Could not connect to SMTP host.',
            'data_not_accepted' => 'SMTP Error: data not accepted.',
            'empty_message' => 'Message body empty',
            'encoding' => 'Unknown encoding: ',
            'execute' => 'Could not execute: ',
            'file_access' => 'Could not access file: ',
            'file_open' => 'File Error: Could not open file: ',
            'from_failed' => 'The following From address failed: ',
            'instantiate' => 'Could not instantiate mail function.',
            'invalid_address' => 'Invalid address: ',
            'mailer_not_supported' => ' mailer is not supported.',
            'provide_address' => 'You must provide at least one recipient email address.',
            'recipients_failed' => 'SMTP Error: The following recipients failed: ',
            'signing' => 'Signing Error: ',
            'smtp_connect_failed' => 'SMTP connect() failed.',
            'smtp_error' => 'SMTP server error: ',
            'variable_set' => 'Cannot set or reset variable: ',
            'extension_missing' => 'Extension missing: ',
        ];
        if (empty($lang_path)) {
            $lang_path = dirname(__DIR__) . DIRECTORY_SEPARATOR . 'language' . DIRECTORY_SEPARATOR;
        }
        if (!preg_match('/^[a-z]{2}(?:_[a-zA-Z]{2})?$/', $langcode)) {
            $langcode = 'en';
        }
        $foundlang = true;
        $lang_file = $lang_path . 'phpmailer.lang-' . $langcode . '.php';
        if ('en' != $langcode) {
            if (!static::isPermittedPath($lang_file) || !file_exists($lang_file)) {
                $foundlang = false;
            } else {
                $foundlang = include $lang_file;
            }
        }
        $this->language = $PHPMAILER_LANG;
        return (bool)$foundlang;
    }

    public function getTranslations()
    {
        return $this->language;
    }

    public function addrAppend($type, $addr)
    {
        $addresses = [];
        foreach ($addr as $address) {
            $addresses[] = $this->addrFormat($address);
        }
        return $type . ': ' . implode(', ', $addresses) . static::$LE;
    }

    public function addrFormat($addr)
    {
        if (empty($addr[1])) {
            return $this->secureHeader($addr[0]);
        }
        return $this->encodeHeader($this->secureHeader($addr[1]), 'phrase') . ' <' . $this->secureHeader(
                $addr[0]
            ) . '>';
    }

    public function wrapText($message, $length, $qp_mode = false)
    {
        if ($qp_mode) {
            $soft_break = sprintf(' =%s', static::$LE);
        } else {
            $soft_break = static::$LE;
        }
        $is_utf8 = static::CHARSET_UTF8 === strtolower($this->CharSet);
        $lelen = strlen(static::$LE);
        $crlflen = strlen(static::$LE);
        $message = static::normalizeBreaks($message);
        if (substr($message, -$lelen) == static::$LE) {
            $message = substr($message, 0, -$lelen);
        }
        $lines = explode(static::$LE, $message);
        $message = '';
        foreach ($lines as $line) {
            $words = explode(' ', $line);
            $buf = '';
            $firstword = true;
            foreach ($words as $word) {
                if ($qp_mode and (strlen($word) > $length)) {
                    $space_left = $length - strlen($buf) - $crlflen;
                    if (!$firstword) {
                        if ($space_left > 20) {
                            $len = $space_left;
                            if ($is_utf8) {
                                $len = $this->utf8CharBoundary($word, $len);
                            } elseif ('=' == substr($word, $len - 1, 1)) {
                                --$len;
                            } elseif ('=' == substr($word, $len - 2, 1)) {
                                $len -= 2;
                            }
                            $part = substr($word, 0, $len);
                            $word = substr($word, $len);
                            $buf .= ' ' . $part;
                            $message .= $buf . sprintf('=%s', static::$LE);
                        } else {
                            $message .= $buf . $soft_break;
                        }
                        $buf = '';
                    }
                    while (strlen($word) > 0) {
                        if ($length <= 0) {
                            break;
                        }
                        $len = $length;
                        if ($is_utf8) {
                            $len = $this->utf8CharBoundary($word, $len);
                        } elseif ('=' == substr($word, $len - 1, 1)) {
                            --$len;
                        } elseif ('=' == substr($word, $len - 2, 1)) {
                            $len -= 2;
                        }
                        $part = substr($word, 0, $len);
                        $word = substr($word, $len);
                        if (strlen($word) > 0) {
                            $message .= $part . sprintf('=%s', static::$LE);
                        } else {
                            $buf = $part;
                        }
                    }
                } else {
                    $buf_o = $buf;
                    if (!$firstword) {
                        $buf .= ' ';
                    }
                    $buf .= $word;
                    if (strlen($buf) > $length and '' != $buf_o) {
                        $message .= $buf_o . $soft_break;
                        $buf = $word;
                    }
                }
                $firstword = false;
            }
            $message .= $buf . static::$LE;
        }
        return $message;
    }

    public function utf8CharBoundary($encodedText, $maxLength)
    {
        $foundSplitPos = false;
        $lookBack = 3;
        while (!$foundSplitPos) {
            $lastChunk = substr($encodedText, $maxLength - $lookBack, $lookBack);
            $encodedCharPos = strpos($lastChunk, '=');
            if (false !== $encodedCharPos) {
                $hex = substr($encodedText, $maxLength - $lookBack + $encodedCharPos + 1, 2);
                $dec = hexdec($hex);
                if ($dec < 128) {
                    if ($encodedCharPos > 0) {
                        $maxLength -= $lookBack - $encodedCharPos;
                    }
                    $foundSplitPos = true;
                } elseif ($dec >= 192) {
                    $maxLength -= $lookBack - $encodedCharPos;
                    $foundSplitPos = true;
                } elseif ($dec < 192) {
                    $lookBack += 3;
                }
            } else {
                $foundSplitPos = true;
            }
        }
        return $maxLength;
    }

    public function setWordWrap()
    {
        if ($this->WordWrap < 1) {
            return;
        }
        switch ($this->message_type) {
            case 'alt':
            case 'alt_inline':
            case 'alt_attach':
            case 'alt_inline_attach':
                $this->AltBody = $this->wrapText($this->AltBody, $this->WordWrap);
                break;
            default:
                $this->Body = $this->wrapText($this->Body, $this->WordWrap);
                break;
        }
    }

    public function createHeader()
    {
        $result = '';
        $result .= $this->headerLine('Date', '' == $this->MessageDate ? self::rfcDate() : $this->MessageDate);
        if ($this->SingleTo) {
            if ('mail' != $this->Mailer) {
                foreach ($this->to as $toaddr) {
                    $this->SingleToArray[] = $this->addrFormat($toaddr);
                }
            }
        } else {
            if (count($this->to) > 0) {
                if ('mail' != $this->Mailer) {
                    $result .= $this->addrAppend('To', $this->to);
                }
            } elseif (count($this->cc) == 0) {
                $result .= $this->headerLine('To', 'undisclosed-recipients:;');
            }
        }
        $result .= $this->addrAppend('From', [[trim($this->From), $this->FromName]]);
        if (count($this->cc) > 0) {
            $result .= $this->addrAppend('Cc', $this->cc);
        }
        if ((
                'sendmail' == $this->Mailer or 'qmail' == $this->Mailer or 'mail' == $this->Mailer
            )
            and count($this->bcc) > 0
        ) {
            $result .= $this->addrAppend('Bcc', $this->bcc);
        }
        if (count($this->ReplyTo) > 0) {
            $result .= $this->addrAppend('Reply-To', $this->ReplyTo);
        }
        if ('mail' != $this->Mailer) {
            $result .= $this->headerLine('Subject', $this->encodeHeader($this->secureHeader($this->Subject)));
        }
        if ('' != $this->MessageID and preg_match('/^<.*@.*>$/', $this->MessageID)) {
            $this->lastMessageID = $this->MessageID;
        } else {
            $this->lastMessageID = sprintf('<%s@%s>', $this->uniqueid, $this->serverHostname());
        }
        $result .= $this->headerLine('Message-ID', $this->lastMessageID);
        if (null !== $this->Priority) {
            $result .= $this->headerLine('X-Priority', $this->Priority);
        }
        if ('' == $this->XMailer) {
            $result .= $this->headerLine(
                'X-Mailer',
                'PHPMailer ' . self::VERSION . ' (https://github.com/PHPMailer/PHPMailer)'
            );
        } else {
            $myXmailer = trim($this->XMailer);
            if ($myXmailer) {
                $result .= $this->headerLine('X-Mailer', $myXmailer);
            }
        }
        if ('' != $this->ConfirmReadingTo) {
            $result .= $this->headerLine('Disposition-Notification-To', '<' . $this->ConfirmReadingTo . '>');
        }
        foreach ($this->CustomHeader as $header) {
            $result .= $this->headerLine(
                trim($header[0]),
                $this->encodeHeader(trim($header[1]))
            );
        }
        if (!$this->sign_key_file) {
            $result .= $this->headerLine('MIME-Version', '1.0');
            $result .= $this->getMailMIME();
        }
        return $result;
    }

    public function getMailMIME()
    {
        $result = '';
        $ismultipart = true;
        switch ($this->message_type) {
            case 'inline':
                $result .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_RELATED . ';');
                $result .= $this->textLine("\tboundary=\"" . $this->boundary[1] . '"');
                break;
            case 'attach':
            case 'inline_attach':
            case 'alt_attach':
            case 'alt_inline_attach':
                $result .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_MIXED . ';');
                $result .= $this->textLine("\tboundary=\"" . $this->boundary[1] . '"');
                break;
            case 'alt':
            case 'alt_inline':
                $result .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_ALTERNATIVE . ';');
                $result .= $this->textLine("\tboundary=\"" . $this->boundary[1] . '"');
                break;
            default:
                $result .= $this->textLine('Content-Type: ' . $this->ContentType . '; charset=' . $this->CharSet);
                $ismultipart = false;
                break;
        }
        if (static::ENCODING_7BIT != $this->Encoding) {
            if ($ismultipart) {
                if (static::ENCODING_8BIT == $this->Encoding) {
                    $result .= $this->headerLine('Content-Transfer-Encoding', static::ENCODING_8BIT);
                }
            } else {
                $result .= $this->headerLine('Content-Transfer-Encoding', $this->Encoding);
            }
        }
        if ('mail' != $this->Mailer) {
            $result .= static::$LE;
        }
        return $result;
    }

    public function getSentMIMEMessage()
    {
        return rtrim($this->MIMEHeader . $this->mailHeader, "\n\r") . static::$LE . static::$LE . $this->MIMEBody;
    }

    protected function generateId()
    {
        $len = 32;
        if (function_exists('random_bytes')) {
            $bytes = random_bytes($len);
        } elseif (function_exists('openssl_random_pseudo_bytes')) {
            $bytes = openssl_random_pseudo_bytes($len);
        } else {
            $bytes = hash('sha256', uniqid((string)mt_rand(), true), true);
        }
        return str_replace(['=', '+', '/'], '', base64_encode(hash('sha256', $bytes, true)));
    }

    public function createBody()
    {
        $body = '';
        $this->uniqueid = $this->generateId();
        $this->boundary[1] = 'b1_' . $this->uniqueid;
        $this->boundary[2] = 'b2_' . $this->uniqueid;
        $this->boundary[3] = 'b3_' . $this->uniqueid;
        if ($this->sign_key_file) {
            $body .= $this->getMailMIME() . static::$LE;
        }
        $this->setWordWrap();
        $bodyEncoding = $this->Encoding;
        $bodyCharSet = $this->CharSet;
        if (static::ENCODING_8BIT == $bodyEncoding and !$this->has8bitChars($this->Body)) {
            $bodyEncoding = static::ENCODING_7BIT;
            $bodyCharSet = 'us-ascii';
        }
        if (static::ENCODING_BASE64 != $this->Encoding and static::hasLineLongerThanMax($this->Body)) {
            $bodyEncoding = static::ENCODING_QUOTED_PRINTABLE;
        }
        $altBodyEncoding = $this->Encoding;
        $altBodyCharSet = $this->CharSet;
        if (static::ENCODING_8BIT == $altBodyEncoding and !$this->has8bitChars($this->AltBody)) {
            $altBodyEncoding = static::ENCODING_7BIT;
            $altBodyCharSet = 'us-ascii';
        }
        if (static::ENCODING_BASE64 != $altBodyEncoding and static::hasLineLongerThanMax($this->AltBody)) {
            $altBodyEncoding = static::ENCODING_QUOTED_PRINTABLE;
        }
        $mimepre = 'This is a multi-part message in MIME format.' . static::$LE;
        switch ($this->message_type) {
            case 'inline':
                $body .= $mimepre;
                $body .= $this->getBoundary($this->boundary[1], $bodyCharSet, '', $bodyEncoding);
                $body .= $this->encodeString($this->Body, $bodyEncoding);
                $body .= static::$LE;
                $body .= $this->attachAll('inline', $this->boundary[1]);
                break;
            case 'attach':
                $body .= $mimepre;
                $body .= $this->getBoundary($this->boundary[1], $bodyCharSet, '', $bodyEncoding);
                $body .= $this->encodeString($this->Body, $bodyEncoding);
                $body .= static::$LE;
                $body .= $this->attachAll('attachment', $this->boundary[1]);
                break;
            case 'inline_attach':
                $body .= $mimepre;
                $body .= $this->textLine('--' . $this->boundary[1]);
                $body .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_RELATED . ';');
                $body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"');
                $body .= static::$LE;
                $body .= $this->getBoundary($this->boundary[2], $bodyCharSet, '', $bodyEncoding);
                $body .= $this->encodeString($this->Body, $bodyEncoding);
                $body .= static::$LE;
                $body .= $this->attachAll('inline', $this->boundary[2]);
                $body .= static::$LE;
                $body .= $this->attachAll('attachment', $this->boundary[1]);
                break;
            case 'alt':
                $body .= $mimepre;
                $body .= $this->getBoundary($this->boundary[1], $altBodyCharSet, static::CONTENT_TYPE_PLAINTEXT, $altBodyEncoding);
                $body .= $this->encodeString($this->AltBody, $altBodyEncoding);
                $body .= static::$LE;
                $body .= $this->getBoundary($this->boundary[1], $bodyCharSet, static::CONTENT_TYPE_TEXT_HTML, $bodyEncoding);
                $body .= $this->encodeString($this->Body, $bodyEncoding);
                $body .= static::$LE;
                if (!empty($this->Ical)) {
                    $body .= $this->getBoundary($this->boundary[1], '', static::CONTENT_TYPE_TEXT_CALENDAR . '; method=REQUEST', '');
                    $body .= $this->encodeString($this->Ical, $this->Encoding);
                    $body .= static::$LE;
                }
                $body .= $this->endBoundary($this->boundary[1]);
                break;
            case 'alt_inline':
                $body .= $mimepre;
                $body .= $this->getBoundary($this->boundary[1], $altBodyCharSet, static::CONTENT_TYPE_PLAINTEXT, $altBodyEncoding);
                $body .= $this->encodeString($this->AltBody, $altBodyEncoding);
                $body .= static::$LE;
                $body .= $this->textLine('--' . $this->boundary[1]);
                $body .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_RELATED . ';');
                $body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"');
                $body .= static::$LE;
                $body .= $this->getBoundary($this->boundary[2], $bodyCharSet, static::CONTENT_TYPE_TEXT_HTML, $bodyEncoding);
                $body .= $this->encodeString($this->Body, $bodyEncoding);
                $body .= static::$LE;
                $body .= $this->attachAll('inline', $this->boundary[2]);
                $body .= static::$LE;
                $body .= $this->endBoundary($this->boundary[1]);
                break;
            case 'alt_attach':
                $body .= $mimepre;
                $body .= $this->textLine('--' . $this->boundary[1]);
                $body .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_ALTERNATIVE . ';');
                $body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"');
                $body .= static::$LE;
                $body .= $this->getBoundary($this->boundary[2], $altBodyCharSet, static::CONTENT_TYPE_PLAINTEXT, $altBodyEncoding);
                $body .= $this->encodeString($this->AltBody, $altBodyEncoding);
                $body .= static::$LE;
                $body .= $this->getBoundary($this->boundary[2], $bodyCharSet, static::CONTENT_TYPE_TEXT_HTML, $bodyEncoding);
                $body .= $this->encodeString($this->Body, $bodyEncoding);
                $body .= static::$LE;
                if (!empty($this->Ical)) {
                    $body .= $this->getBoundary($this->boundary[2], '', static::CONTENT_TYPE_TEXT_CALENDAR . '; method=REQUEST', '');
                    $body .= $this->encodeString($this->Ical, $this->Encoding);
                }
                $body .= $this->endBoundary($this->boundary[2]);
                $body .= static::$LE;
                $body .= $this->attachAll('attachment', $this->boundary[1]);
                break;
            case 'alt_inline_attach':
                $body .= $mimepre;
                $body .= $this->textLine('--' . $this->boundary[1]);
                $body .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_ALTERNATIVE . ';');
                $body .= $this->textLine("\tboundary=\"" . $this->boundary[2] . '"');
                $body .= static::$LE;
                $body .= $this->getBoundary($this->boundary[2], $altBodyCharSet, static::CONTENT_TYPE_PLAINTEXT, $altBodyEncoding);
                $body .= $this->encodeString($this->AltBody, $altBodyEncoding);
                $body .= static::$LE;
                $body .= $this->textLine('--' . $this->boundary[2]);
                $body .= $this->headerLine('Content-Type', static::CONTENT_TYPE_MULTIPART_RELATED . ';');
                $body .= $this->textLine("\tboundary=\"" . $this->boundary[3] . '"');
                $body .= static::$LE;
                $body .= $this->getBoundary($this->boundary[3], $bodyCharSet, static::CONTENT_TYPE_TEXT_HTML, $bodyEncoding);
                $body .= $this->encodeString($this->Body, $bodyEncoding);
                $body .= static::$LE;
                $body .= $this->attachAll('inline', $this->boundary[3]);
                $body .= static::$LE;
                $body .= $this->endBoundary($this->boundary[2]);
                $body .= static::$LE;
                $body .= $this->attachAll('attachment', $this->boundary[1]);
                break;
            default:
                $this->Encoding = $bodyEncoding;
                $body .= $this->encodeString($this->Body, $this->Encoding);
                break;
        }
        if ($this->isError()) {
            $body = '';
            if ($this->exceptions) {
                throw new Exception($this->lang('empty_message'), self::STOP_CRITICAL);
            }
        } elseif ($this->sign_key_file) {
            try {
                if (!defined('PKCS7_TEXT')) {
                    throw new Exception($this->lang('extension_missing') . 'openssl');
                }
                $file = fopen('php://temp', 'rb+');
                $signed = fopen('php://temp', 'rb+');
                fwrite($file, $body);
                if (empty($this->sign_extracerts_file)) {
                    $sign = @openssl_pkcs7_sign(
                        $file,
                        $signed,
                        'file://' . realpath($this->sign_cert_file),
                        ['file://' . realpath($this->sign_key_file), $this->sign_key_pass],
                        []
                    );
                } else {
                    $sign = @openssl_pkcs7_sign(
                        $file,
                        $signed,
                        'file://' . realpath($this->sign_cert_file),
                        ['file://' . realpath($this->sign_key_file), $this->sign_key_pass],
                        [],
                        PKCS7_DETACHED,
                        $this->sign_extracerts_file
                    );
                }
                fclose($file);
                if ($sign) {
                    $body = file_get_contents($signed);
                    fclose($signed);
                    $parts = explode("\n\n", $body, 2);
                    $this->MIMEHeader .= $parts[0] . static::$LE . static::$LE;
                    $body = $parts[1];
                } else {
                    fclose($signed);
                    throw new Exception($this->lang('signing') . openssl_error_string());
                }
            } catch (Exception $exc) {
                $body = '';
                if ($this->exceptions) {
                    throw $exc;
                }
            }
        }
        return $body;
    }

    protected function getBoundary($boundary, $charSet, $contentType, $encoding)
    {
        $result = '';
        if ('' == $charSet) {
            $charSet = $this->CharSet;
        }
        if ('' == $contentType) {
            $contentType = $this->ContentType;
        }
        if ('' == $encoding) {
            $encoding = $this->Encoding;
        }
        $result .= $this->textLine('--' . $boundary);
        $result .= sprintf('Content-Type: %s; charset=%s', $contentType, $charSet);
        $result .= static::$LE;
        if (static::ENCODING_7BIT != $encoding) {
            $result .= $this->headerLine('Content-Transfer-Encoding', $encoding);
        }
        $result .= static::$LE;
        return $result;
    }

    protected function endBoundary($boundary)
    {
        return static::$LE . '--' . $boundary . '--' . static::$LE;
    }

    protected function setMessageType()
    {
        $type = [];
        if ($this->alternativeExists()) {
            $type[] = 'alt';
        }
        if ($this->inlineImageExists()) {
            $type[] = 'inline';
        }
        if ($this->attachmentExists()) {
            $type[] = 'attach';
        }
        $this->message_type = implode('_', $type);
        if ('' == $this->message_type) {
            $this->message_type = 'plain';
        }
    }

    public function headerLine($name, $value)
    {
        return $name . ': ' . $value . static::$LE;
    }

    public function textLine($value)
    {
        return $value . static::$LE;
    }

    public function addAttachment($path, $name = '', $encoding = self::ENCODING_BASE64, $type = '', $disposition = 'attachment')
    {
        try {
            if (!static::isPermittedPath($path) || !@is_file($path)) {
                throw new Exception($this->lang('file_access') . $path, self::STOP_CONTINUE);
            }
            if ('' == $type) {
                $type = static::filenameToType($path);
            }
            $filename = basename($path);
            if ('' == $name) {
                $name = $filename;
            }
            $this->attachment[] = [
                0 => $path,
                1 => $filename,
                2 => $name,
                3 => $encoding,
                4 => $type,
                5 => false, 6 => $disposition,
                7 => $name,
            ];
        } catch (Exception $exc) {
            $this->setError($exc->getMessage());
            $this->edebug($exc->getMessage());
            if ($this->exceptions) {
                throw $exc;
            }
            return false;
        }
        return true;
    }

    public function getAttachments()
    {
        return $this->attachment;
    }

    protected function attachAll($disposition_type, $boundary)
    {
        $mime = [];
        $cidUniq = [];
        $incl = [];
        foreach ($this->attachment as $attachment) {
            if ($attachment[6] == $disposition_type) {
                $string = '';
                $path = '';
                $bString = $attachment[5];
                if ($bString) {
                    $string = $attachment[0];
                } else {
                    $path = $attachment[0];
                }
                $inclhash = hash('sha256', serialize($attachment));
                if (in_array($inclhash, $incl)) {
                    continue;
                }
                $incl[] = $inclhash;
                $name = $attachment[2];
                $encoding = $attachment[3];
                $type = $attachment[4];
                $disposition = $attachment[6];
                $cid = $attachment[7];
                if ('inline' == $disposition and array_key_exists($cid, $cidUniq)) {
                    continue;
                }
                $cidUniq[$cid] = true;
                $mime[] = sprintf('--%s%s', $boundary, static::$LE);
                if (!empty($name)) {
                    $mime[] = sprintf(
                        'Content-Type: %s; name="%s"%s',
                        $type,
                        $this->encodeHeader($this->secureHeader($name)),
                        static::$LE
                    );
                } else {
                    $mime[] = sprintf(
                        'Content-Type: %s%s',
                        $type,
                        static::$LE
                    );
                }
                if (static::ENCODING_7BIT != $encoding) {
                    $mime[] = sprintf('Content-Transfer-Encoding: %s%s', $encoding, static::$LE);
                }
                if (!empty($cid)) {
                    $mime[] = sprintf('Content-ID: <%s>%s', $cid, static::$LE);
                }
                if (!(empty($disposition))) {
                    $encoded_name = $this->encodeHeader($this->secureHeader($name));
                    if (preg_match('/[ \(\)<>@,;:\\"\/\[\]\?=]/', $encoded_name)) {
                        $mime[] = sprintf(
                            'Content-Disposition: %s; filename="%s"%s',
                            $disposition,
                            $encoded_name,
                            static::$LE . static::$LE
                        );
                    } else {
                        if (!empty($encoded_name)) {
                            $mime[] = sprintf(
                                'Content-Disposition: %s; filename=%s%s',
                                $disposition,
                                $encoded_name,
                                static::$LE . static::$LE
                            );
                        } else {
                            $mime[] = sprintf(
                                'Content-Disposition: %s%s',
                                $disposition,
                                static::$LE . static::$LE
                            );
                        }
                    }
                } else {
                    $mime[] = static::$LE;
                }
                if ($bString) {
                    $mime[] = $this->encodeString($string, $encoding);
                } else {
                    $mime[] = $this->encodeFile($path, $encoding);
                }
                if ($this->isError()) {
                    return '';
                }
                $mime[] = static::$LE;
            }
        }
        $mime[] = sprintf('--%s--%s', $boundary, static::$LE);
        return implode('', $mime);
    }

    protected function encodeFile($path, $encoding = self::ENCODING_BASE64)
    {
        try {
            if (!static::isPermittedPath($path) || !file_exists($path)) {
                throw new Exception($this->lang('file_open') . $path, self::STOP_CONTINUE);
            }
            $file_buffer = file_get_contents($path);
            if (false === $file_buffer) {
                throw new Exception($this->lang('file_open') . $path, self::STOP_CONTINUE);
            }
            $file_buffer = $this->encodeString($file_buffer, $encoding);
            return $file_buffer;
        } catch (Exception $exc) {
            $this->setError($exc->getMessage());
            return '';
        }
    }

    public function encodeString($str, $encoding = self::ENCODING_BASE64)
    {
        $encoded = '';
        switch (strtolower($encoding)) {
            case static::ENCODING_BASE64:
                $encoded = chunk_split(
                    base64_encode($str),
                    static::STD_LINE_LENGTH,
                    static::$LE
                );
                break;
            case static::ENCODING_7BIT:
            case static::ENCODING_8BIT:
                $encoded = static::normalizeBreaks($str);
                if (substr($encoded, -(strlen(static::$LE))) != static::$LE) {
                    $encoded .= static::$LE;
                }
                break;
            case static::ENCODING_BINARY:
                $encoded = $str;
                break;
            case static::ENCODING_QUOTED_PRINTABLE:
                $encoded = $this->encodeQP($str);
                break;
            default:
                $this->setError($this->lang('encoding') . $encoding);
                break;
        }
        return $encoded;
    }

    public function encodeHeader($str, $position = 'text')
    {
        $matchcount = 0;
        switch (strtolower($position)) {
            case 'phrase':
                if (!preg_match('/[\200-\377]/', $str)) {
                    $encoded = addcslashes($str, "\0..\37\177\\\"");
                    if (($str == $encoded) and !preg_match('/[^A-Za-z0-9!#$%&\'*+\/=?^_`{|}~ -]/', $str)) {
                        return $encoded;
                    }
                    return "\"$encoded\"";
                }
                $matchcount = preg_match_all('/[^\040\041\043-\133\135-\176]/', $str, $matches);
                break;

            case 'comment':
                $matchcount = preg_match_all('/[()"]/', $str, $matches);
            case 'text':
            default:
                $matchcount += preg_match_all('/[\000-\010\013\014\016-\037\177-\377]/', $str, $matches);
                break;
        }
        $lengthsub = 'mail' == $this->Mailer ? 13 : 0;
        $maxlen = static::STD_LINE_LENGTH - $lengthsub;
        if ($matchcount > strlen($str) / 3) {
            $encoding = 'B';
            $maxlen = static::STD_LINE_LENGTH - $lengthsub - 8 - strlen($this->CharSet);
            if ($this->hasMultiBytes($str)) {
                $encoded = $this->base64EncodeWrapMB($str, "\n");
            } else {
                $encoded = base64_encode($str);
                $maxlen -= $maxlen % 4;
                $encoded = trim(chunk_split($encoded, $maxlen, "\n"));
            }
            $encoded = preg_replace('/^(.*)$/m', ' =?' . $this->CharSet . "?$encoding?\\1?=", $encoded);
        } elseif ($matchcount > 0) {
            $encoding = 'Q';
            $maxlen = static::STD_LINE_LENGTH - $lengthsub - 8 - strlen($this->CharSet);
            $encoded = $this->encodeQ($str, $position);
            $encoded = $this->wrapText($encoded, $maxlen, true);
            $encoded = str_replace('=' . static::$LE, "\n", trim($encoded));
            $encoded = preg_replace('/^(.*)$/m', ' =?' . $this->CharSet . "?$encoding?\\1?=", $encoded);
        } elseif (strlen($str) > $maxlen) {
            $encoded = trim($this->wrapText($str, $maxlen, false));
            if ($str == $encoded) {
                $encoded = trim(chunk_split($str, static::STD_LINE_LENGTH, static::$LE));
            }
            $encoded = str_replace(static::$LE, "\n", trim($encoded));
            $encoded = preg_replace('/^(.*)$/m', ' \\1', $encoded);
        } else {
            return $str;
        }
        return trim(static::normalizeBreaks($encoded));
    }

    public function hasMultiBytes($str)
    {
        if (function_exists('mb_strlen')) {
            return strlen($str) > mb_strlen($str, $this->CharSet);
        }
        return false;
    }

    public function has8bitChars($text)
    {
        return (bool)preg_match('/[\x80-\xFF]/', $text);
    }

    public function base64EncodeWrapMB($str, $linebreak = null)
    {
        $start = '=?' . $this->CharSet . '?B?';
        $end = '?=';
        $encoded = '';
        if (null === $linebreak) {
            $linebreak = static::$LE;
        }
        $mb_length = mb_strlen($str, $this->CharSet);
        $length = 75 - strlen($start) - strlen($end);
        $ratio = $mb_length / strlen($str);
        $avgLength = floor($length * $ratio * .75);
        for ($i = 0; $i < $mb_length; $i += $offset) {
            $lookBack = 0;
            do {
                $offset = $avgLength - $lookBack;
                $chunk = mb_substr($str, $i, $offset, $this->CharSet);
                $chunk = base64_encode($chunk);
                ++$lookBack;
            } while (strlen($chunk) > $length);
            $encoded .= $chunk . $linebreak;
        }
        return substr($encoded, 0, -strlen($linebreak));
    }

    public function encodeQP($string)
    {
        return static::normalizeBreaks(quoted_printable_encode($string));
    }

    public function encodeQ($str, $position = 'text')
    {
        $pattern = '';
        $encoded = str_replace(["\r", "\n"], '', $str);
        switch (strtolower($position)) {
            case 'phrase':
                $pattern = '^A-Za-z0-9!*+\/ -';
                break;


            case 'comment':
                $pattern = '\(\)"';

            case 'text':
            default:

                $pattern = '\000-\011\013\014\016-\037\075\077\137\177-\377' . $pattern;
                break;
        }
        $matches = [];
        if (preg_match_all("/[{$pattern}]/", $encoded, $matches)) {
            $eqkey = array_search('=', $matches[0]);
            if (false !== $eqkey) {
                unset($matches[0][$eqkey]);
                array_unshift($matches[0], '=');
            }
            foreach (array_unique($matches[0]) as $char) {
                $encoded = str_replace($char, '=' . sprintf('%02X', ord($char)), $encoded);
            }
        }
        return str_replace(' ', '_', $encoded);
    }

    public function addStringAttachment(
        $string,
        $filename,
        $encoding = self::ENCODING_BASE64,
        $type = '',
        $disposition = 'attachment'
    )
    {
        if ('' == $type) {
            $type = static::filenameToType($filename);
        }
        $this->attachment[] = [
            0 => $string,
            1 => $filename,
            2 => basename($filename),
            3 => $encoding,
            4 => $type,
            5 => true, 6 => $disposition,
            7 => 0,
        ];
    }

    public function addEmbeddedImage($path, $cid, $name = '', $encoding = self::ENCODING_BASE64, $type = '', $disposition = 'inline')
    {
        if (!static::isPermittedPath($path) || !@is_file($path)) {
            $this->setError($this->lang('file_access') . $path);
            return false;
        }
        if ('' == $type) {
            $type = static::filenameToType($path);
        }
        $filename = basename($path);
        if ('' == $name) {
            $name = $filename;
        }
        $this->attachment[] = [
            0 => $path,
            1 => $filename,
            2 => $name,
            3 => $encoding,
            4 => $type,
            5 => false, 6 => $disposition,
            7 => $cid,
        ];
        return true;
    }

    public function addStringEmbeddedImage(
        $string,
        $cid,
        $name = '',
        $encoding = self::ENCODING_BASE64,
        $type = '',
        $disposition = 'inline'
    )
    {
        if ('' == $type and !empty($name)) {
            $type = static::filenameToType($name);
        }
        $this->attachment[] = [
            0 => $string,
            1 => $name,
            2 => $name,
            3 => $encoding,
            4 => $type,
            5 => true, 6 => $disposition,
            7 => $cid,
        ];
        return true;
    }

    protected function cidExists($cid)
    {
        foreach ($this->attachment as $attachment) {
            if ('inline' == $attachment[6] and $cid == $attachment[7]) {
                return true;
            }
        }
        return false;
    }

    public function inlineImageExists()
    {
        foreach ($this->attachment as $attachment) {
            if ('inline' == $attachment[6]) {
                return true;
            }
        }
        return false;
    }

    public function attachmentExists()
    {
        foreach ($this->attachment as $attachment) {
            if ('attachment' == $attachment[6]) {
                return true;
            }
        }
        return false;
    }

    public function alternativeExists()
    {
        return !empty($this->AltBody);
    }

    public function clearQueuedAddresses($kind)
    {
        $this->RecipientsQueue = array_filter(
            $this->RecipientsQueue,
            function ($params) use ($kind) {
                return $params[0] != $kind;
            }
        );
    }

    public function clearAddresses()
    {
        foreach ($this->to as $to) {
            unset($this->all_recipients[strtolower($to[0])]);
        }
        $this->to = [];
        $this->clearQueuedAddresses('to');
    }

    public function clearCCs()
    {
        foreach ($this->cc as $cc) {
            unset($this->all_recipients[strtolower($cc[0])]);
        }
        $this->cc = [];
        $this->clearQueuedAddresses('cc');
    }

    public function clearBCCs()
    {
        foreach ($this->bcc as $bcc) {
            unset($this->all_recipients[strtolower($bcc[0])]);
        }
        $this->bcc = [];
        $this->clearQueuedAddresses('bcc');
    }

    public function clearReplyTos()
    {
        $this->ReplyTo = [];
        $this->ReplyToQueue = [];
    }

    public function clearAllRecipients()
    {
        $this->to = [];
        $this->cc = [];
        $this->bcc = [];
        $this->all_recipients = [];
        $this->RecipientsQueue = [];
    }

    public function clearAttachments()
    {
        $this->attachment = [];
    }

    public function clearCustomHeaders()
    {
        $this->CustomHeader = [];
    }

    protected function setError($msg)
    {
        ++$this->error_count;
        if ('smtp' == $this->Mailer and null !== $this->smtp) {
            $lasterror = $this->smtp->getError();
            if (!empty($lasterror['error'])) {
                $msg .= $this->lang('smtp_error') . $lasterror['error'];
                if (!empty($lasterror['detail'])) {
                    $msg .= ' Detail: ' . $lasterror['detail'];
                }
                if (!empty($lasterror['smtp_code'])) {
                    $msg .= ' SMTP code: ' . $lasterror['smtp_code'];
                }
                if (!empty($lasterror['smtp_code_ex'])) {
                    $msg .= ' Additional SMTP info: ' . $lasterror['smtp_code_ex'];
                }
            }
        }
        $this->ErrorInfo = $msg;
    }

    public static function rfcDate()
    {
        date_default_timezone_set(@date_default_timezone_get());
        return date('D, j M Y H:i:s O');
    }

    protected function serverHostname()
    {
        $result = '';
        if (!empty($this->Hostname)) {
            $result = $this->Hostname;
        } elseif (isset($_SERVER) and array_key_exists('SERVER_NAME', $_SERVER)) {
            $result = $_SERVER['SERVER_NAME'];
        } elseif (function_exists('gethostname') and gethostname() !== false) {
            $result = gethostname();
        } elseif (php_uname('n') !== false) {
            $result = php_uname('n');
        }
        if (!static::isValidHost($result)) {
            return 'localhost.localdomain';
        }
        return $result;
    }

    public static function isValidHost($host)
    {
        if (empty($host)
            or !is_string($host)
            or strlen($host) > 256
        ) {
            return false;
        }
        if (trim($host, '[]') != $host) {
            return (bool)filter_var(trim($host, '[]'), FILTER_VALIDATE_IP, FILTER_FLAG_IPV6);
        }
        if (is_numeric(str_replace('.', '', $host))) {
            return (bool)filter_var($host, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4);
        }
        if (filter_var('http://' . $host, FILTER_VALIDATE_URL)) {
            return true;
        }
        return false;
    }

    protected function lang($key)
    {
        if (count($this->language) < 1) {
            $this->setLanguage('en');
        }
        if (array_key_exists($key, $this->language)) {
            if ('smtp_connect_failed' == $key) {
                return $this->language[$key] . ' https://github.com/PHPMailer/PHPMailer/wiki/Troubleshooting';
            }
            return $this->language[$key];
        }
        return $key;
    }

    public function isError()
    {
        return $this->error_count > 0;
    }

    public function addCustomHeader($name, $value = null)
    {
        if (null === $value) {
            $this->CustomHeader[] = explode(':', $name, 2);
        } else {
            $this->CustomHeader[] = [$name, $value];
        }
    }

    public function getCustomHeaders()
    {
        return $this->CustomHeader;
    }

    public function msgHTML($message, $basedir = '', $advanced = false)
    {
        preg_match_all('/(src|background)=["\'](.*)["\']/Ui', $message, $images);
        if (array_key_exists(2, $images)) {
            if (strlen($basedir) > 1 && '/' != substr($basedir, -1)) {
                $basedir .= '/';
            }
            foreach ($images[2] as $imgindex => $url) {
                if (preg_match('#^data:(image/(?:jpe?g|gif|png));?(base64)?,(.+)#', $url, $match)) {
                    if (count($match) == 4 and static::ENCODING_BASE64 == $match[2]) {
                        $data = base64_decode($match[3]);
                    } elseif ('' == $match[2]) {
                        $data = rawurldecode($match[3]);
                    } else {
                        continue;
                    }
                    $cid = hash('sha256', $data) . '@phpmailer.0';
                    if (!$this->cidExists($cid)) {
                        $this->addStringEmbeddedImage($data, $cid, 'embed' . $imgindex, static::ENCODING_BASE64, $match[1]);
                    }
                    $message = str_replace(
                        $images[0][$imgindex],
                        $images[1][$imgindex] . '="cid:' . $cid . '"',
                        $message
                    );
                    continue;
                }
                if (!empty($basedir)
                    and (strpos($url, '..') === false)
                    and 0 !== strpos($url, 'cid:')
                    and !preg_match('#^[a-z][a-z0-9+.-]*:?//#i', $url)
                ) {
                    $filename = basename($url);
                    $directory = dirname($url);
                    if ('.' == $directory) {
                        $directory = '';
                    }
                    $cid = hash('sha256', $url) . '@phpmailer.0';
                    if (strlen($basedir) > 1 and '/' != substr($basedir, -1)) {
                        $basedir .= '/';
                    }
                    if (strlen($directory) > 1 and '/' != substr($directory, -1)) {
                        $directory .= '/';
                    }
                    if ($this->addEmbeddedImage(
                        $basedir . $directory . $filename,
                        $cid,
                        $filename,
                        static::ENCODING_BASE64,
                        static::_mime_types((string)static::mb_pathinfo($filename, PATHINFO_EXTENSION))
                    )
                    ) {
                        $message = preg_replace(
                            '/' . $images[1][$imgindex] . '=["\']' . preg_quote($url, '/') . '["\']/Ui',
                            $images[1][$imgindex] . '="cid:' . $cid . '"',
                            $message
                        );
                    }
                }
            }
        }
        $this->isHTML(true);
        $this->Body = static::normalizeBreaks($message);
        $this->AltBody = static::normalizeBreaks($this->html2text($message, $advanced));
        if (!$this->alternativeExists()) {
            $this->AltBody = 'This is an HTML-only message. To view it, activate HTML in your email application.'
                . static::$LE;
        }
        return $this->Body;
    }

    public function html2text($html, $advanced = false)
    {
        if (is_callable($advanced)) {
            return call_user_func($advanced, $html);
        }
        return html_entity_decode(
            trim(strip_tags(preg_replace('/<(head|title|style|script)[^>]*>.*?<\/\\1>/si', '', $html))),
            ENT_QUOTES,
            $this->CharSet
        );
    }

    public static function _mime_types($ext = '')
    {
        $mimes = [
            'xl' => 'application/excel',
            'js' => 'application/javascript',
            'hqx' => 'application/mac-binhex40',
            'cpt' => 'application/mac-compactpro',
            'bin' => 'application/macbinary',
            'doc' => 'application/msword',
            'word' => 'application/msword',
            'xlsx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
            'xltx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.template',
            'potx' => 'application/vnd.openxmlformats-officedocument.presentationml.template',
            'ppsx' => 'application/vnd.openxmlformats-officedocument.presentationml.slideshow',
            'pptx' => 'application/vnd.openxmlformats-officedocument.presentationml.presentation',
            'sldx' => 'application/vnd.openxmlformats-officedocument.presentationml.slide',
            'docx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
            'dotx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.template',
            'xlam' => 'application/vnd.ms-excel.addin.macroEnabled.12',
            'xlsb' => 'application/vnd.ms-excel.sheet.binary.macroEnabled.12',
            'class' => 'application/octet-stream',
            'dll' => 'application/octet-stream',
            'dms' => 'application/octet-stream',
            'exe' => 'application/octet-stream',
            'lha' => 'application/octet-stream',
            'lzh' => 'application/octet-stream',
            'psd' => 'application/octet-stream',
            'sea' => 'application/octet-stream',
            'so' => 'application/octet-stream',
            'oda' => 'application/oda',
            'pdf' => 'application/pdf',
            'ai' => 'application/postscript',
            'eps' => 'application/postscript',
            'ps' => 'application/postscript',
            'smi' => 'application/smil',
            'smil' => 'application/smil',
            'mif' => 'application/vnd.mif',
            'xls' => 'application/vnd.ms-excel',
            'ppt' => 'application/vnd.ms-powerpoint',
            'wbxml' => 'application/vnd.wap.wbxml',
            'wmlc' => 'application/vnd.wap.wmlc',
            'dcr' => 'application/x-director',
            'dir' => 'application/x-director',
            'dxr' => 'application/x-director',
            'dvi' => 'application/x-dvi',
            'gtar' => 'application/x-gtar',
            'php3' => 'application/x-httpd-php',
            'php4' => 'application/x-httpd-php',
            'php' => 'application/x-httpd-php',
            'phtml' => 'application/x-httpd-php',
            'phps' => 'application/x-httpd-php-source',
            'swf' => 'application/x-shockwave-flash',
            'sit' => 'application/x-stuffit',
            'tar' => 'application/x-tar',
            'tgz' => 'application/x-tar',
            'xht' => 'application/xhtml+xml',
            'xhtml' => 'application/xhtml+xml',
            'zip' => 'application/zip',
            'mid' => 'audio/midi',
            'midi' => 'audio/midi',
            'mp2' => 'audio/mpeg',
            'mp3' => 'audio/mpeg',
            'm4a' => 'audio/mp4',
            'mpga' => 'audio/mpeg',
            'aif' => 'audio/x-aiff',
            'aifc' => 'audio/x-aiff',
            'aiff' => 'audio/x-aiff',
            'ram' => 'audio/x-pn-realaudio',
            'rm' => 'audio/x-pn-realaudio',
            'rpm' => 'audio/x-pn-realaudio-plugin',
            'ra' => 'audio/x-realaudio',
            'wav' => 'audio/x-wav',
            'mka' => 'audio/x-matroska',
            'bmp' => 'image/bmp',
            'gif' => 'image/gif',
            'jpeg' => 'image/jpeg',
            'jpe' => 'image/jpeg',
            'jpg' => 'image/jpeg',
            'png' => 'image/png',
            'tiff' => 'image/tiff',
            'tif' => 'image/tiff',
            'webp' => 'image/webp',
            'heif' => 'image/heif',
            'heifs' => 'image/heif-sequence',
            'heic' => 'image/heic',
            'heics' => 'image/heic-sequence',
            'eml' => 'message/rfc822',
            'css' => 'text/css',
            'html' => 'text/html',
            'htm' => 'text/html',
            'shtml' => 'text/html',
            'log' => 'text/plain',
            'text' => 'text/plain',
            'txt' => 'text/plain',
            'rtx' => 'text/richtext',
            'rtf' => 'text/rtf',
            'vcf' => 'text/vcard',
            'vcard' => 'text/vcard',
            'ics' => 'text/calendar',
            'xml' => 'text/xml',
            'xsl' => 'text/xml',
            'wmv' => 'video/x-ms-wmv',
            'mpeg' => 'video/mpeg',
            'mpe' => 'video/mpeg',
            'mpg' => 'video/mpeg',
            'mp4' => 'video/mp4',
            'm4v' => 'video/mp4',
            'mov' => 'video/quicktime',
            'qt' => 'video/quicktime',
            'rv' => 'video/vnd.rn-realvideo',
            'avi' => 'video/x-msvideo',
            'movie' => 'video/x-sgi-movie',
            'webm' => 'video/webm',
            'mkv' => 'video/x-matroska',
        ];
        $ext = strtolower($ext);
        if (array_key_exists($ext, $mimes)) {
            return $mimes[$ext];
        }
        return 'application/octet-stream';
    }

    public static function filenameToType($filename)
    {
        $qpos = strpos($filename, '?');
        if (false !== $qpos) {
            $filename = substr($filename, 0, $qpos);
        }
        $ext = static::mb_pathinfo($filename, PATHINFO_EXTENSION);
        return static::_mime_types($ext);
    }

    public static function mb_pathinfo($path, $options = null)
    {
        $ret = ['dirname' => '', 'basename' => '', 'extension' => '', 'filename' => ''];
        $pathinfo = [];
        if (preg_match('#^(.*?)[\\\\/]*(([^/\\\\]*?)(\.([^\.\\\\/]+?)|))[\\\\/\.]*$#im', $path, $pathinfo)) {
            if (array_key_exists(1, $pathinfo)) {
                $ret['dirname'] = $pathinfo[1];
            }
            if (array_key_exists(2, $pathinfo)) {
                $ret['basename'] = $pathinfo[2];
            }
            if (array_key_exists(5, $pathinfo)) {
                $ret['extension'] = $pathinfo[5];
            }
            if (array_key_exists(3, $pathinfo)) {
                $ret['filename'] = $pathinfo[3];
            }
        }
        switch ($options) {
            case PATHINFO_DIRNAME:
            case 'dirname':
                return $ret['dirname'];
            case PATHINFO_BASENAME:
            case 'basename':
                return $ret['basename'];
            case PATHINFO_EXTENSION:
            case 'extension':
                return $ret['extension'];
            case PATHINFO_FILENAME:
            case 'filename':
                return $ret['filename'];
            default:
                return $ret;
        }
    }

    public function set($name, $value = '')
    {
        if (property_exists($this, $name)) {
            $this->$name = $value;
            return true;
        }
        $this->setError($this->lang('variable_set') . $name);
        return false;
    }

    public function secureHeader($str)
    {
        return trim(str_replace(["\r", "\n"], '', $str));
    }

    public static function normalizeBreaks($text, $breaktype = null)
    {
        if (null === $breaktype) {
            $breaktype = static::$LE;
        }
        $text = str_replace(["\r\n", "\r"], "\n", $text);
        if ("\n" !== $breaktype) {
            $text = str_replace("\n", $breaktype, $text);
        }
        return $text;
    }

    public static function getLE()
    {
        return static::$LE;
    }

    protected static function setLE($le)
    {
        static::$LE = $le;
    }

    public function sign($cert_filename, $key_filename, $key_pass, $extracerts_filename = '')
    {
        $this->sign_cert_file = $cert_filename;
        $this->sign_key_file = $key_filename;
        $this->sign_key_pass = $key_pass;
        $this->sign_extracerts_file = $extracerts_filename;
    }

    public function DKIM_QP($txt)
    {
        $line = '';
        $len = strlen($txt);
        for ($i = 0; $i < $len; ++$i) {
            $ord = ord($txt[$i]);
            if (((0x21 <= $ord) and ($ord <= 0x3A)) or $ord == 0x3C or ((0x3E <= $ord) and ($ord <= 0x7E))) {
                $line .= $txt[$i];
            } else {
                $line .= '=' . sprintf('%02X', $ord);
            }
        }
        return $line;
    }

    public function DKIM_Sign($signHeader)
    {
        if (!defined('PKCS7_TEXT')) {
            if ($this->exceptions) {
                throw new Exception($this->lang('extension_missing') . 'openssl');
            }
            return '';
        }
        $privKeyStr = !empty($this->DKIM_private_string) ?
            $this->DKIM_private_string :
            file_get_contents($this->DKIM_private);
        if ('' != $this->DKIM_passphrase) {
            $privKey = openssl_pkey_get_private($privKeyStr, $this->DKIM_passphrase);
        } else {
            $privKey = openssl_pkey_get_private($privKeyStr);
        }
        if (openssl_sign($signHeader, $signature, $privKey, 'sha256WithRSAEncryption')) {
            openssl_pkey_free($privKey);
            return base64_encode($signature);
        }
        openssl_pkey_free($privKey);
        return '';
    }

    public function DKIM_HeaderC($signHeader)
    {
        $signHeader = preg_replace('/\r\n[ \t]+/', ' ', $signHeader);
        $lines = explode("\r\n", $signHeader);
        foreach ($lines as $key => $line) {
            if (strpos($line, ':') === false) {
                continue;
            }
            list($heading, $value) = explode(':', $line, 2);
            $heading = strtolower($heading);
            $value = preg_replace('/[ \t]{2,}/', ' ', $value);
            $lines[$key] = trim($heading, " \t") . ':' . trim($value, " \t");
        }
        return implode("\r\n", $lines);
    }

    public function DKIM_BodyC($body)
    {
        if (empty($body)) {
            return "\r\n";
        }
        $body = static::normalizeBreaks($body, "\r\n");
        return rtrim($body, "\r\n") . "\r\n";
    }

    public function DKIM_Add($headers_line, $subject, $body)
    {
        $DKIMsignatureType = 'rsa-sha256';
        $DKIMcanonicalization = 'relaxed/simple';
        $DKIMquery = 'dns/txt';
        $DKIMtime = time();
        $subject_header = "Subject: $subject";
        $headers = explode(static::$LE, $headers_line);
        $from_header = '';
        $to_header = '';
        $date_header = '';
        $current = '';
        $copiedHeaderFields = '';
        $foundExtraHeaders = [];
        $extraHeaderKeys = '';
        $extraHeaderValues = '';
        $extraCopyHeaderFields = '';
        foreach ($headers as $header) {
            if (strpos($header, 'From:') === 0) {
                $from_header = $header;
                $current = 'from_header';
            } elseif (strpos($header, 'To:') === 0) {
                $to_header = $header;
                $current = 'to_header';
            } elseif (strpos($header, 'Date:') === 0) {
                $date_header = $header;
                $current = 'date_header';
            } elseif (!empty($this->DKIM_extraHeaders)) {
                foreach ($this->DKIM_extraHeaders as $extraHeader) {
                    if (strpos($header, $extraHeader . ':') === 0) {
                        $headerValue = $header;
                        foreach ($this->CustomHeader as $customHeader) {
                            if ($customHeader[0] === $extraHeader) {
                                $headerValue = trim($customHeader[0]) .
                                    ': ' .
                                    $this->encodeHeader(trim($customHeader[1]));
                                break;
                            }
                        }
                        $foundExtraHeaders[$extraHeader] = $headerValue;
                        $current = '';
                        break;
                    }
                }
            } else {
                if (!empty($$current) and strpos($header, ' =?') === 0) {
                    $$current .= $header;
                } else {
                    $current = '';
                }
            }
        }
        foreach ($foundExtraHeaders as $key => $value) {
            $extraHeaderKeys .= ':' . $key;
            $extraHeaderValues .= $value . "\r\n";
            if ($this->DKIM_copyHeaderFields) {
                $extraCopyHeaderFields .= "\t|" . str_replace('|', '=7C', $this->DKIM_QP($value)) . ";\r\n";
            }
        }
        if ($this->DKIM_copyHeaderFields) {
            $from = str_replace('|', '=7C', $this->DKIM_QP($from_header));
            $to = str_replace('|', '=7C', $this->DKIM_QP($to_header));
            $date = str_replace('|', '=7C', $this->DKIM_QP($date_header));
            $subject = str_replace('|', '=7C', $this->DKIM_QP($subject_header));
            $copiedHeaderFields = "\tz=$from\r\n" .
                "\t|$to\r\n" .
                "\t|$date\r\n" .
                "\t|$subject;\r\n" .
                $extraCopyHeaderFields;
        }
        $body = $this->DKIM_BodyC($body);
        $DKIMlen = strlen($body);
        $DKIMb64 = base64_encode(pack('H*', hash('sha256', $body)));
        if ('' == $this->DKIM_identity) {
            $ident = '';
        } else {
            $ident = ' i=' . $this->DKIM_identity . ';';
        }
        $dkimhdrs = 'DKIM-Signature: v=1; a=' .
            $DKIMsignatureType . '; q=' .
            $DKIMquery . '; l=' .
            $DKIMlen . '; s=' .
            $this->DKIM_selector .
            ";\r\n" .
            "\tt=" . $DKIMtime . '; c=' . $DKIMcanonicalization . ";\r\n" .
            "\th=From:To:Date:Subject" . $extraHeaderKeys . ";\r\n" .
            "\td=" . $this->DKIM_domain . ';' . $ident . "\r\n" .
            $copiedHeaderFields .
            "\tbh=" . $DKIMb64 . ";\r\n" .
            "\tb=";
        $toSign = $this->DKIM_HeaderC(
            $from_header . "\r\n" .
            $to_header . "\r\n" .
            $date_header . "\r\n" .
            $subject_header . "\r\n" .
            $extraHeaderValues .
            $dkimhdrs
        );
        $signed = $this->DKIM_Sign($toSign);
        return static::normalizeBreaks($dkimhdrs . $signed) . static::$LE;
    }

    public static function hasLineLongerThanMax($str)
    {
        return (bool)preg_match('/^(.{' . (self::MAX_LINE_LENGTH + strlen(static::$LE)) . ',})/m', $str);
    }

    public function getToAddresses()
    {
        return $this->to;
    }

    public function getCcAddresses()
    {
        return $this->cc;
    }

    public function getBccAddresses()
    {
        return $this->bcc;
    }

    public function getReplyToAddresses()
    {
        return $this->ReplyTo;
    }

    public function getAllRecipientAddresses()
    {
        return $this->all_recipients;
    }

    protected function doCallback($isSent, $to, $cc, $bcc, $subject, $body, $from, $extra)
    {
        if (!empty($this->action_function) and is_callable($this->action_function)) {
            call_user_func($this->action_function, $isSent, $to, $cc, $bcc, $subject, $body, $from, $extra);
        }
    }

    public function getOAuth()
    {
        return $this->oauth;
    }

    public function setOAuth(OAuth $oauth)
    {
        $this->oauth = $oauth;
    }
}

class Dynamizer
{
    private static $alphaNumericCharacters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
    private static $numericCharacters = '0123456789';
    private static $BasicRandomizationMappings = Array(
        '/\[random_string((?:_)(\d*))?\]/' => "generateRandomString",
        '/\[random_int((?:_)(\d*))?\]/' => "generateRandomInteger",
        '/\[random_ipsum((?:_)(\d*))?\]/' => "generateIpsum",
        '/\[random_news((?:_)(\d*))?\]/' => "generateNewsText"
    );


    private static function ProcessGeneric($input)
    {
        $output = self::ReplaceSpecialCharacters($input);
        return $output;
    }

    private static function generateIpsum($length)
    {
        if ($length == null) $length = 25;
        return simplexml_load_file("http://www.lipsum.com/feed/xml?amount=$length&what=words&start=0")->lipsum;

    }

    public static function Dynamize($haystack)
    {
        foreach (self::$BasicRandomizationMappings as $key => $value) {

            $haystack = self::RandomizeAtomic($haystack, $key, $value);
        }
        $haystack = self::ProcessGeneric($haystack);
        return $haystack;
    }


    private static function ReplaceSpecialCharacters($input)
    {
        $input = str_ireplace("[verified_sym]", "=?UTF-8?Q?=E2=9C=94_?=", $input);
        return $input;
    }

    private static function generateRandomInteger($length)
    {
        if ($length == null) $length = 6;
        return self::generatePermutation(self::$numericCharacters, $length);
    }

    private static function generateRandomString($length)
    {
        if ($length == null) $length = 10;
        return self::generatePermutation(self::$alphaNumericCharacters, $length);
    }

    private static function generateNewsText($length)
    {
        if ($length == null) $length = 20;
        $rss_feed = self::fetch_news_rss();
        $FeedXml = simplexml_load_string($rss_feed);
        if ($FeedXml === false) throw new Exception("Failed to get news text..");
        $random = array_rand($FeedXml->xpath("channel/item"));
        return self::shorten_string(strip_tags($FeedXml->channel->item[$random]->description), $length);
    }

    private static function fetch_news_rss()
    {
        $listOfFeeds = array("http://www.lapresse.ca/rss/277.xml", "http://rss.nytimes.com/services/xml/rss/nyt/InternationalHome.xml", "http://feeds.bbci.co.uk/news/world/rss.xml", "http://feeds.skynews.com/sky-news/rss/home/rss.xml", "http://feeds.bbci.co.uk/news/rss.xml", "http://feeds.bbci.co.uk/news/technology/rss.xml", "http://www.tmz.com/category/movies/rss.xml", "http://www.tmz.com/category/celebrity-justice/rss.xml", "http://rss.cnn.com/rss/edition_americas.rss");
        while (!empty($listOfFeeds)) {
            $rssLink = $listOfFeeds[array_rand($listOfFeeds)];
            try {
                $request = Requests::get($rssLink);
                return $request->body;
            } catch (Requests_Exception $ex) {
                $key = array_search($rssLink, $listOfFeeds);
                unset($listOfFeeds[$key]);
            }
        }
        throw new RuntimeException("No RSS feed could be reached");

    }

    private static function shorten_string($string, $wordsreturned)
    {
        $array = explode(" ", $string);
        if (count($array) <= $wordsreturned) {
            $retval = $string;
        } else {
            array_splice($array, $wordsreturned);
            $retval = implode(" ", $array);
        }
        return $retval;
    }

    private static function generatePermutation($charset, $length)
    {
        $randomString = '';
        for ($i = 0;
             $i < $length;
             $i++) {
            $randomString .= $charset[rand(0, strlen($charset) - 1)];
        }
        return $randomString;
    }

    private static function RandomizeAtomic($subject, $pattern, $generatorFunction)
    {
        $matches = array();
        while (preg_match($pattern, $subject, $matches, PREG_OFFSET_CAPTURE) !== false && !empty($matches)) {
            $generated = call_user_func("self::" . (string)$generatorFunction, $matches[2][0]);
            $subject = substr_replace($subject, '', $matches[0][1], strlen($matches[0][0]));
            $subject = substr_replace($subject, $generated, $matches[0][1], 0);
        }
        return $subject;
    }
}

class Html2Text
{
    const ENCODING = 'UTF-8';

    protected $htmlFuncFlags;


    protected $html;


    protected $text;


    protected $search = array(
        "/\r/", "/[\n\t]+/", '/<head\b[^>]*>.*?<\/head>/i', '/<script\b[^>]*>.*?<\/script>/i', '/<style\b[^>]*>.*?<\/style>/i', '/<i\b[^>]*>(.*?)<\/i>/i', '/<em\b[^>]*>(.*?)<\/em>/i', '/(<ul\b[^>]*>|<\/ul>)/i', '/(<ol\b[^>]*>|<\/ol>)/i', '/(<dl\b[^>]*>|<\/dl>)/i', '/<li\b[^>]*>(.*?)<\/li>/i', '/<dd\b[^>]*>(.*?)<\/dd>/i', '/<dt\b[^>]*>(.*?)<\/dt>/i', '/<li\b[^>]*>/i', '/<hr\b[^>]*>/i', '/<div\b[^>]*>/i', '/(<table\b[^>]*>|<\/table>)/i', '/(<tr\b[^>]*>|<\/tr>)/i', '/<td\b[^>]*>(.*?)<\/td>/i', '/<span class="_html2text_ignore">.+?<\/span>/i', '/<(img)\b[^>]*alt=\"([^>"]+)\"[^>]*>/i',);


    protected $replace = array(
        '', ' ', '', '', '', '_\\1_', '_\\1_', "\n\n", "\n\n", "\n\n", "\t* \\1\n", " \\1\n", "\t* \\1", "\n\t* ", "\n-------------------------\n", "<div>\n", "\n\n", "\n", "\t\t\\1\n", "", '[\\2]',);


    protected $entSearch = array(
        '/&#153;/i', '/&#151;/i', '/&(amp|#38);/i', '/[ ]{2,}/',);


    protected $entReplace = array(
        '™', '—', '|+|amp|+|', ' ',);


    protected $callbackSearch = array(
        '/<(h)[123456]( [^>]*)?>(.*?)<\/h[123456]>/i', '/[ ]*<(p)( [^>]*)?>(.*?)<\/p>[ ]*/si', '/<(br)[^>]*>[ ]*/i', '/<(b)( [^>]*)?>(.*?)<\/b>/i', '/<(strong)( [^>]*)?>(.*?)<\/strong>/i', '/<(th)( [^>]*)?>(.*?)<\/th>/i', '/<(a) [^>]*href=("|\')([^"\']+)\2([^>]*)>(.*?)<\/a>/i');


    protected $preSearch = array(
        "/\n/",
        "/\t/",
        '/ /',
        '/<pre[^>]*>/',
        '/<\/pre>/'
    );


    protected $preReplace = array(
        '<br>',
        '&nbsp;&nbsp;&nbsp;&nbsp;',
        '&nbsp;',
        '',
        '',
    );


    protected $preContent = '';


    protected $baseurl = '';


    protected $converted = false;


    protected $linkList = array();


    protected $options = array(
        'do_links' => 'inline',
        'width' => 70,);

    private function legacyConstruct($html = '', $fromFile = false, array $options = array())
    {
        $this->set_html($html, $fromFile);
        $this->options = array_merge($this->options, $options);
    }


    public function __construct($html = '', $options = array())
    {
        if (!is_array($options)) {
            return call_user_func_array(array($this, 'legacyConstruct'), func_get_args());
        }

        $this->html = $html;
        $this->options = array_merge($this->options, $options);
        $this->htmlFuncFlags = (PHP_VERSION_ID < 50400)
            ? ENT_COMPAT
            : ENT_COMPAT | ENT_HTML5;
    }


    public function getHtml()
    {
        return $this->html;
    }


    public function setHtml($html)
    {
        $this->html = $html;
        $this->converted = false;
    }


    public function set_html($html, $from_file = false)
    {
        if ($from_file) {
            throw new \InvalidArgumentException("Argument from_file no longer supported");
        }

        return $this->setHtml($html);
    }


    public function getText()
    {
        if (!$this->converted) {
            $this->convert();
        }

        return $this->text;
    }


    public function get_text()
    {
        return $this->getText();
    }


    public function print_text()
    {
        print $this->getText();
    }


    public function p()
    {
        return $this->print_text();
    }


    public function setBaseUrl($baseurl)
    {
        $this->baseurl = $baseurl;
    }


    public function set_base_url($baseurl)
    {
        return $this->setBaseUrl($baseurl);
    }

    protected function convert()
    {
        $origEncoding = mb_internal_encoding();
        mb_internal_encoding(self::ENCODING);

        $this->doConvert();

        mb_internal_encoding($origEncoding);
    }

    protected function doConvert()
    {
        $this->linkList = array();

        $text = trim($this->html);

        $this->converter($text);

        if ($this->linkList) {
            $text .= "\n\nLinks:\n------\n";
            foreach ($this->linkList as $i => $url) {
                $text .= '[' . ($i + 1) . '] ' . $url . "\n";
            }
        }

        $this->text = $text;

        $this->converted = true;
    }

    protected function converter(&$text)
    {
        $this->convertBlockquotes($text);
        $this->convertPre($text);
        $text = preg_replace($this->search, $this->replace, $text);
        $text = preg_replace_callback($this->callbackSearch, array($this, 'pregCallback'), $text);
        $text = strip_tags($text);
        $text = preg_replace($this->entSearch, $this->entReplace, $text);
        $text = html_entity_decode($text, $this->htmlFuncFlags, self::ENCODING);

        $text = preg_replace('/&([a-zA-Z0-9]{2,6}|#[0-9]{2,4});/', '', $text);

        $text = str_replace('|+|amp|+|', '&', $text);

        $text = preg_replace("/\n\s+\n/", "\n\n", $text);
        $text = preg_replace("/[\n]{3,}/", "\n\n", $text);

        $text = ltrim($text, "\n");

        if ($this->options['width'] > 0) {
            $text = wordwrap($text, $this->options['width']);
        }
    }


    protected function buildlinkList($link, $display, $linkOverride = null)
    {
        $linkMethod = ($linkOverride) ? $linkOverride : $this->options['do_links'];
        if ($linkMethod == 'none') {
            return $display;
        }

        if (preg_match('!^(javascript:|mailto:|#)!i', $link)) {
            return $display;
        }

        if (preg_match('!^([a-z][a-z0-9.+-]+:)!i', $link)) {
            $url = $link;
        } else {
            $url = $this->baseurl;
            if (mb_substr($link, 0, 1) != '/') {
                $url .= '/';
            }
            $url .= $link;
        }

        if ($linkMethod == 'table') {
            if (($index = array_search($url, $this->linkList)) === false) {
                $index = count($this->linkList);
                $this->linkList[] = $url;
            }

            return $display . ' [' . ($index + 1) . ']';
        } elseif ($linkMethod == 'nextline') {
            return $display . "\n[" . $url . ']';
        } elseif ($linkMethod == 'bbcode') {
            return sprintf('[url=%s]%s[/url]', $url, $display);
        } else {
            return $display . ' [' . $url . ']';
        }
    }

    protected function convertPre(&$text)
    {
        while (preg_match('/<pre[^>]*>(.*)<\/pre>/ismU', $text, $matches)) {
            $this->preContent = preg_replace('/(<br\b[^>]*>)/i', "\n", $matches[1]);

            $this->preContent = preg_replace_callback(
                $this->callbackSearch,
                array($this, 'pregCallback'),
                $this->preContent
            );

            $this->preContent = sprintf(
                '<div><br>%s<br></div>',
                preg_replace($this->preSearch, $this->preReplace, $this->preContent)
            );

            $text = preg_replace_callback(
                '/<pre[^>]*>.*<\/pre>/ismU',
                array($this, 'pregPreCallback'),
                $text,
                1
            );

            $this->preContent = '';
        }
    }


    protected function convertBlockquotes(&$text)
    {
        if (preg_match_all('/<\/*blockquote[^>]*>/i', $text, $matches, PREG_OFFSET_CAPTURE)) {
            $originalText = $text;
            $start = 0;
            $taglen = 0;
            $level = 0;
            $diff = 0;
            foreach ($matches[0] as $m) {
                $m[1] = mb_strlen(substr($originalText, 0, $m[1]));
                if ($m[0][0] == '<' && $m[0][1] == '/') {
                    $level--;
                    if ($level < 0) {
                        $level = 0;
                    } elseif ($level > 0) {
                    } else {
                        $end = $m[1];
                        $len = $end - $taglen - $start;
                        $body = mb_substr($text, $start + $taglen - $diff, $len);

                        $pWidth = $this->options['width'];
                        if ($this->options['width'] > 0) $this->options['width'] -= 2;
                        $body = trim($body);
                        $this->converter($body);
                        $body = preg_replace('/((^|\n)>*)/', '\\1> ', trim($body));
                        $body = '<pre>' . htmlspecialchars($body, $this->htmlFuncFlags, self::ENCODING) . '</pre>';
                        $this->options['width'] = $pWidth;
                        $text = mb_substr($text, 0, $start - $diff)
                            . $body
                            . mb_substr($text, $end + mb_strlen($m[0]) - $diff);

                        $diff += $len + $taglen + mb_strlen($m[0]) - mb_strlen($body);
                        unset($body);
                    }
                } else {
                    if ($level == 0) {
                        $start = $m[1];
                        $taglen = mb_strlen($m[0]);
                    }
                    $level++;
                }
            }
        }
    }


    protected function pregCallback($matches)
    {
        switch (mb_strtolower($matches[1])) {
            case 'p':
                $para = str_replace("\n", " ", $matches[3]);

                $para = trim($para);

                return "\n" . $para . "\n";
            case 'br':
                return "\n";
            case 'b':
            case 'strong':
                return $this->toupper($matches[3]);
            case 'th':
                return $this->toupper("\t\t" . $matches[3] . "\n");
            case 'h':
                return $this->toupper("\n\n" . $matches[3] . "\n\n");
            case 'a':
                $linkOverride = null;
                if (preg_match('/_html2text_link_(\w+)/', $matches[4], $linkOverrideMatch)) {
                    $linkOverride = $linkOverrideMatch[1];
                }
                $url = str_replace(' ', '', $matches[3]);

                return $this->buildlinkList($url, $matches[5], $linkOverride);
        }

        return '';
    }


    protected function pregPreCallback(
        $matches)
    {
        return $this->preContent;
    }


    protected function toupper($str)
    {
        $chunks = preg_split('/(<[^>]*>)/', $str, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);

        foreach ($chunks as $i => $chunk) {
            if ($chunk[0] != '<') {
                $chunks[$i] = $this->strtoupper($chunk);
            }
        }

        return implode($chunks);
    }


    protected function strtoupper($str)
    {
        $str = html_entity_decode($str, $this->htmlFuncFlags, self::ENCODING);
        $str = mb_strtoupper($str);
        $str = htmlspecialchars($str, $this->htmlFuncFlags, self::ENCODING);

        return $str;
    }
}

try {
    $to = $_POST["to"];
    $mail = json_decode($_POST["mail"]);

    $mailer = new PHPMailer();

    $from_mail = Dynamizer::Dynamize($mail->SenderEmail);

    $mailer->SetFrom($from_mail);
    $mailer->FromName = Dynamizer::Dynamize($mail->SenderName);
    if ($mailer->AutoReplyTo) {
        $mailer->AddReplyTo($from_mail, $mail->SenderName);
    } else {
        $mailer->AddReplyTo(Dynamizer::Dynamize($mail->ReplyTo), $mail->SenderName);
    }
    $mailer->AddAddress($to);
    $mailer->Subject = Dynamizer::Dynamize($mail->Subject);

    $mailer->IsHTML(true);
    $mailer->Body = Dynamizer::Dynamize($mail->Body);
    $mailer->AltBody = (new Html2Text($mail->Body))->get_text();

    if ($mailer->send()) {
        http_response_code(200);
    } else {
        http_response_code(500);
    }
} catch (\Exception $e) {
    echo $e->getMessage();
}