/myproj/class.phpmailer.php

Large files files are truncated, but you can click here to view the full file

<?php
  
//                  *****************
//                  
//Programmer : Ms. Mihika Jain
//Student ID : 12526075
//Contact email : mihika.jain@my.jcu.edu.au
//
//                  *****************
  

if (version_compare(PHP_VERSION, '5.0.0', '<') ) exit("Sorry, this version of PHPMailer will only run on PHP version 5 or greater!\n");

class PHPMailer {

  public $Priority          = 3;

  
  public $CharSet           = 'iso-8859-1';

  
  public $ContentType       = 'text/plain';

 
  public $Encoding          = '8bit';

  
  public $ErrorInfo         = '';

 
  public $From              = 'root@localhost';

  
  public $FromName          = 'Root User';

  
  public $Sender            = '';

  public $Subject           = '';

 
  public $Body              = '';

 
  public $AltBody           = '';

  
  protected $MIMEBody       = '';

  
  protected $MIMEHeader     = '';

 
  public $WordWrap          = 0;

  
  public $Mailer            = 'mail';

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

 
  public $PluginDir         = '';

  
  public $ConfirmReadingTo  = '';

 
  public $Hostname          = '';

  
  public $MessageID         = '';

  
  public $Host          = 'localhost';

 
  public $Port          = 25;

 
  public $Helo          = '';

 
  public $SMTPSecure    = '';

  
  public $SMTPAuth      = false;

 
  public $Username      = '';

  
  public $Password      = '';

  
  public $Timeout       = 10;

 
  public $SMTPDebug     = false;

  public $SMTPKeepAlive = false;

  
  public $SingleTo      = false;

  
  public $SingleToArray = array();


  public $LE              = "\n";

  
  public $DKIM_selector   = 'phpmailer';

  
  public $DKIM_identity   = '';

  
  public $DKIM_passphrase   = '';

 
  public $DKIM_domain     = '';

  
  public $DKIM_private    = '';

  public $action_function = ''; //'callbackAction';

  
  public $Version         = '5.2';

  
  public $XMailer         = '';

  

  protected   $smtp           = NULL;
  protected   $to             = array();
  protected   $cc             = array();
  protected   $bcc            = array();
  protected   $ReplyTo        = array();
  protected   $all_recipients = array();
  protected   $attachment     = array();
  protected   $CustomHeader   = array();
  protected   $message_type   = '';
  protected   $boundary       = array();
  protected   $language       = array();
  protected   $error_count    = 0;
  protected   $sign_cert_file = '';
  protected   $sign_key_file  = '';
  protected   $sign_key_pass  = '';
  protected   $exceptions     = false;

 

  const STOP_MESSAGE  = 0; // message only, continue processing
  const STOP_CONTINUE = 1; // message?, likely ok to continue processing
  const STOP_CRITICAL = 2; // message, plus full stop, critical error reached

  /////////////////////////////////////////////////
  // METHODS, VARIABLES
  /////////////////////////////////////////////////

  /**
   * Constructor
   * @param boolean $exceptions Should we throw external exceptions?
   */
  public function __construct($exceptions = false) {
    $this->exceptions = ($exceptions == true);
  }

  /**
   * Sets message type to HTML.
   * @param bool $ishtml
   * @return void
   */
  public function IsHTML($ishtml = true) {
    if ($ishtml) {
      $this->ContentType = 'text/html';
    } else {
      $this->ContentType = 'text/plain';
    }
  }

  /**
   * Sets Mailer to send message using SMTP.
   * @return void
   */
  public function IsSMTP() {
    $this->Mailer = 'smtp';
  }

  /**
   * Sets Mailer to send message using PHP mail() function.
   * @return void
   */
  public function IsMail() {
    $this->Mailer = 'mail';
  }

  /**
   * Sets Mailer to send message using the $Sendmail program.
   * @return void
   */
  public function IsSendmail() {
    if (!stristr(ini_get('sendmail_path'), 'sendmail')) {
      $this->Sendmail = '/var/qmail/bin/sendmail';
    }
    $this->Mailer = 'sendmail';
  }

  /**
   * Sets Mailer to send message using the qmail MTA.
   * @return void
   */
  public function IsQmail() {
    if (stristr(ini_get('sendmail_path'), 'qmail')) {
      $this->Sendmail = '/var/qmail/bin/sendmail';
    }
    $this->Mailer = 'sendmail';
  }

  /////////////////////////////////////////////////
  // METHODS, RECIPIENTS
  /////////////////////////////////////////////////

  /**
   * Adds a "To" address.
   * @param string $address
   * @param string $name
   * @return boolean true on success, false if address already used
   */
  public function AddAddress($address, $name = '') {
    return $this->AddAnAddress('to', $address, $name);
  }

  /**
   * Adds a "Cc" address.
   * Note: this function works with the SMTP mailer on win32, not with the "mail" mailer.
   * @param string $address
   * @param string $name
   * @return boolean true on success, false if address already used
   */
  public function AddCC($address, $name = '') {
    return $this->AddAnAddress('cc', $address, $name);
  }

  /**
   * Adds a "Bcc" address.
   * Note: this function works with the SMTP mailer on win32, not with the "mail" mailer.
   * @param string $address
   * @param string $name
   * @return boolean true on success, false if address already used
   */
  public function AddBCC($address, $name = '') {
    return $this->AddAnAddress('bcc', $address, $name);
  }

  /**
   * Adds a "Reply-to" address.
   * @param string $address
   * @param string $name
   * @return boolean
   */
  public function AddReplyTo($address, $name = '') {
    return $this->AddAnAddress('ReplyTo', $address, $name);
  }

  /**
   * Adds an address to one of the recipient arrays
   * Addresses that have been added already return false, but do not throw exceptions
   * @param string $kind One of 'to', 'cc', 'bcc', 'ReplyTo'
   * @param string $address The email address to send to
   * @param string $name
   * @return boolean true on success, false if address already used or invalid in some way
   * @access protected
   */
  protected function AddAnAddress($kind, $address, $name = '') {
    if (!preg_match('/^(to|cc|bcc|ReplyTo)$/', $kind)) {
      $this->SetError($this->Lang('Invalid recipient array').': '.$kind);
      if ($this->exceptions) {
        throw new phpmailerException('Invalid recipient array: ' . $kind);
      }
      echo $this->Lang('Invalid recipient array').': '.$kind;
      return false;
    }
    $address = trim($address);
    $name = trim(preg_replace('/[\r\n]+/', '', $name)); //Strip breaks and trim
    if (!self::ValidateAddress($address)) {
      $this->SetError($this->Lang('invalid_address').': '. $address);
      if ($this->exceptions) {
        throw new phpmailerException($this->Lang('invalid_address').': '.$address);
      }
      echo $this->Lang('invalid_address').': '.$address;
      return false;
    }
    if ($kind != 'ReplyTo') {
      if (!isset($this->all_recipients[strtolower($address)])) {
        array_push($this->$kind, array($address, $name));
        $this->all_recipients[strtolower($address)] = true;
        return true;
      }
    } else {
      if (!array_key_exists(strtolower($address), $this->ReplyTo)) {
        $this->ReplyTo[strtolower($address)] = array($address, $name);
      return true;
    }
  }
  return false;
}

/**
 * Set the From and FromName properties
 * @param string $address
 * @param string $name
 * @return boolean
 */
  public function SetFrom($address, $name = '', $auto = 1) {
    $address = trim($address);
    $name = trim(preg_replace('/[\r\n]+/', '', $name)); //Strip breaks and trim
    if (!self::ValidateAddress($address)) {
      $this->SetError($this->Lang('invalid_address').': '. $address);
      if ($this->exceptions) {
        throw new phpmailerException($this->Lang('invalid_address').': '.$address);
      }
      echo $this->Lang('invalid_address').': '.$address;
      return false;
    }
    $this->From = $address;
    $this->FromName = $name;
    if ($auto) {
      if (empty($this->ReplyTo)) {
        $this->AddAnAddress('ReplyTo', $address, $name);
      }
      if (empty($this->Sender)) {
        $this->Sender = $address;
      }
    }
    return true;
  }

  /**
   * Check that a string looks roughly like an email address should
   * Static so it can be used without instantiation
   * Tries to use PHP built-in validator in the filter extension (from PHP 5.2), falls back to a reasonably competent regex validator
   * Conforms approximately to RFC2822
   * @link http://www.hexillion.com/samples/#Regex Original pattern found here
   * @param string $address The email address to check
   * @return boolean
   * @static
   * @access public
   */
  public static function ValidateAddress($address) {
    if (function_exists('filter_var')) { //Introduced in PHP 5.2
      if(filter_var($address, FILTER_VALIDATE_EMAIL) === FALSE) {
        return false;
      } else {
        return true;
      }
    } else {
      return preg_match('/^(?:[\w\!\#\$\%\&\'\*\+\-\/\=\?\^\`\{\|\}\~]+\.)*[\w\!\#\$\%\&\'\*\+\-\/\=\?\^\`\{\|\}\~]+@(?:(?:(?:[a-zA-Z0-9_](?:[a-zA-Z0-9_\-](?!\.)){0,61}[a-zA-Z0-9_-]?\.)+[a-zA-Z0-9_](?:[a-zA-Z0-9_\-](?!$)){0,61}[a-zA-Z0-9_]?)|(?:\[(?:(?:[01]?\d{1,2}|2[0-4]\d|25[0-5])\.){3}(?:[01]?\d{1,2}|2[0-4]\d|25[0-5])\]))$/', $address);
    }
  }

  /////////////////////////////////////////////////
  // METHODS, MAIL SENDING
  /////////////////////////////////////////////////

  /**
   * Creates message and assigns Mailer. If the message is
   * not sent successfully then it returns false.  Use the ErrorInfo
   * variable to view description of the error.
   * @return bool
   */
  public function Send() {
    try {
      if(!$this->PreSend()) return false;
      return $this->PostSend();
    } catch (phpmailerException $e) {
      $this->SetError($e->getMessage());
      if ($this->exceptions) {
        throw $e;
      }
      return false;
    }
  }

  protected function PreSend() {
    try {
      if ((count($this->to) + count($this->cc) + count($this->bcc)) < 1) {
        throw new phpmailerException($this->Lang('provide_address'), self::STOP_CRITICAL);
      }

      // Set whether the message is multipart/alternative
      if(!empty($this->AltBody)) {
        $this->ContentType = 'multipart/alternative';
      }

      $this->error_count = 0; // reset errors
      $this->SetMessageType();
      //Refuse to send an empty message
      if (empty($this->Body)) {
        throw new phpmailerException($this->Lang('empty_message'), self::STOP_CRITICAL);
      }

      $this->MIMEHeader = $this->CreateHeader();
      $this->MIMEBody = $this->CreateBody();


      // digitally sign with DKIM if enabled
      if ($this->DKIM_domain && $this->DKIM_private) {
        $header_dkim = $this->DKIM_Add($this->MIMEHeader, $this->EncodeHeader($this->SecureHeader($this->Subject)), $this->MIMEBody);
        $this->MIMEHeader = str_replace("\r\n", "\n", $header_dkim) . $this->MIMEHeader;
      }

      return true;
    } catch (phpmailerException $e) {
      $this->SetError($e->getMessage());
      if ($this->exceptions) {
        throw $e;
      }
      return false;
    }
  }

  protected function PostSend() {
    try {
      // Choose the mailer and send through it
      switch($this->Mailer) {
        case 'sendmail':
          return $this->SendmailSend($this->MIMEHeader, $this->MIMEBody);
        case 'smtp':
          return $this->SmtpSend($this->MIMEHeader, $this->MIMEBody);
        default:
          return $this->MailSend($this->MIMEHeader, $this->MIMEBody);
      }

    } catch (phpmailerException $e) {
      $this->SetError($e->getMessage());
      if ($this->exceptions) {
        throw $e;
      }
      echo $e->getMessage()."\n";
      return false;
    }
  }

  /**
   * Sends mail using the $Sendmail program.
   * @param string $header The message headers
   * @param string $body The message body
   * @access protected
   * @return bool
   */
  protected function SendmailSend($header, $body) {
    if ($this->Sender != '') {
      $sendmail = sprintf("%s -oi -f %s -t", escapeshellcmd($this->Sendmail), escapeshellarg($this->Sender));
    } else {
      $sendmail = sprintf("%s -oi -t", escapeshellcmd($this->Sendmail));
    }
    if ($this->SingleTo === true) {
      foreach ($this->SingleToArray as $key => $val) {
        if(!@$mail = popen($sendmail, 'w')) {
          throw new phpmailerException($this->Lang('execute') . $this->Sendmail, self::STOP_CRITICAL);
        }
        fputs($mail, "To: " . $val . "\n");
        fputs($mail, $header);
        fputs($mail, $body);
        $result = pclose($mail);
        // implement call back function if it exists
        $isSent = ($result == 0) ? 1 : 0;
        $this->doCallback($isSent, $val, $this->cc, $this->bcc, $this->Subject, $body);
        if($result != 0) {
          throw new phpmailerException($this->Lang('execute') . $this->Sendmail, self::STOP_CRITICAL);
        }
      }
    } else {
      if(!@$mail = popen($sendmail, 'w')) {
        throw new phpmailerException($this->Lang('execute') . $this->Sendmail, self::STOP_CRITICAL);
      }
      fputs($mail, $header);
      fputs($mail, $body);
      $result = pclose($mail);
      // implement call back function if it exists
      $isSent = ($result == 0) ? 1 : 0;
      $this->doCallback($isSent, $this->to, $this->cc, $this->bcc, $this->Subject, $body);
      if($result != 0) {
        throw new phpmailerException($this->Lang('execute') . $this->Sendmail, self::STOP_CRITICAL);
      }
    }
    return true;
  }

  /**
   * Sends mail using the PHP mail() function.
   * @param string $header The message headers
   * @param string $body The message body
   * @access protected
   * @return bool
   */
  protected function MailSend($header, $body) {
    $toArr = array();
    foreach($this->to as $t) {
      $toArr[] = $this->AddrFormat($t);
    }
    $to = implode(', ', $toArr);

    if (empty($this->Sender)) {
      $params = "-oi -f %s";
    } else {
      $params = sprintf("-oi -f %s", $this->Sender);
    }
    if ($this->Sender != '' and !ini_get('safe_mode')) {
      $old_from = ini_get('sendmail_from');
      ini_set('sendmail_from', $this->Sender);
      if ($this->SingleTo === true && count($toArr) > 1) {
        foreach ($toArr as $key => $val) {
          $rt = @mail($val, $this->EncodeHeader($this->SecureHeader($this->Subject)), $body, $header, $params);
          // implement call back function if it exists
          $isSent = ($rt == 1) ? 1 : 0;
          $this->doCallback($isSent, $val, $this->cc, $this->bcc, $this->Subject, $body);
        }
      } else {
        $rt = @mail($to, $this->EncodeHeader($this->SecureHeader($this->Subject)), $body, $header, $params);
        // implement call back function if it exists
        $isSent = ($rt == 1) ? 1 : 0;
        $this->doCallback($isSent, $to, $this->cc, $this->bcc, $this->Subject, $body);
      }
    } else {
      if ($this->SingleTo === true && count($toArr) > 1) {
        foreach ($toArr as $key => $val) {
          $rt = @mail($val, $this->EncodeHeader($this->SecureHeader($this->Subject)), $body, $header, $params);
          // implement call back function if it exists
          $isSent = ($rt == 1) ? 1 : 0;
          $this->doCallback($isSent, $val, $this->cc, $this->bcc, $this->Subject, $body);
        }
      } else {
        $rt = @mail($to, $this->EncodeHeader($this->SecureHeader($this->Subject)), $body, $header);
        // implement call back function if it exists
        $isSent = ($rt == 1) ? 1 : 0;
        $this->doCallback($isSent, $to, $this->cc, $this->bcc, $this->Subject, $body);
      }
    }
    if (isset($old_from)) {
      ini_set('sendmail_from', $old_from);
    }
    if(!$rt) {
      throw new phpmailerException($this->Lang('instantiate'), self::STOP_CRITICAL);
    }
    return true;
  }

  /**
   * Sends mail via SMTP using PhpSMTP
   * Returns false if there is a bad MAIL FROM, RCPT, or DATA input.
   * @param string $header The message headers
   * @param string $body The message body
   * @uses SMTP
   * @access protected
   * @return bool
   */
  protected function SmtpSend($header, $body) {
    require_once $this->PluginDir . 'class.smtp.php';
    $bad_rcpt = array();

    if(!$this->SmtpConnect()) {
      throw new phpmailerException($this->Lang('smtp_connect_failed'), self::STOP_CRITICAL);
    }
    $smtp_from = ($this->Sender == '') ? $this->From : $this->Sender;
    if(!$this->smtp->Mail($smtp_from)) {
      throw new phpmailerException($this->Lang('from_failed') . $smtp_from, self::STOP_CRITICAL);
    }

    // Attempt to send attach all recipients
    foreach($this->to as $to) {
      if (!$this->smtp->Recipient($to[0])) {
        $bad_rcpt[] = $to[0];
        // implement call back function if it exists
        $isSent = 0;
        $this->doCallback($isSent, $to[0], '', '', $this->Subject, $body);
      } else {
        // implement call back function if it exists
        $isSent = 1;
        $this->doCallback($isSent, $to[0], '', '', $this->Subject, $body);
      }
    }
    foreach($this->cc as $cc) {
      if (!$this->smtp->Recipient($cc[0])) {
        $bad_rcpt[] = $cc[0];
        // implement call back function if it exists
        $isSent = 0;
        $this->doCallback($isSent, '', $cc[0], '', $this->Subject, $body);
      } else {
        // implement call back function if it exists
        $isSent = 1;
        $this->doCallback($isSent, '', $cc[0], '', $this->Subject, $body);
      }
    }
    foreach($this->bcc as $bcc) {
      if (!$this->smtp->Recipient($bcc[0])) {
        $bad_rcpt[] = $bcc[0];
        // implement call back function if it exists
        $isSent = 0;
        $this->doCallback($isSent, '', '', $bcc[0], $this->Subject, $body);
      } else {
        // implement call back function if it exists
        $isSent = 1;
        $this->doCallback($isSent, '', '', $bcc[0], $this->Subject, $body);
      }
    }


    if (count($bad_rcpt) > 0 ) { //Create error message for any bad addresses
      $badaddresses = implode(', ', $bad_rcpt);
      throw new phpmailerException($this->Lang('recipients_failed') . $badaddresses);
    }
    if(!$this->smtp->Data($header . $body)) {
      throw new phpmailerException($this->Lang('data_not_accepted'), self::STOP_CRITICAL);
    }
    if($this->SMTPKeepAlive == true) {
      $this->smtp->Reset();
    }
    return true;
  }

  /**
   * Initiates a connection to an SMTP server.
   * Returns false if the operation failed.
   * @uses SMTP
   * @access public
   * @return bool
   */
  public function SmtpConnect() {
    if(is_null($this->smtp)) {
      $this->smtp = new SMTP();
    }

    $this->smtp->do_debug = $this->SMTPDebug;
    $hosts = explode(';', $this->Host);
    $index = 0;
    $connection = $this->smtp->Connected();

    // Retry while there is no connection
    try {
      while($index < count($hosts) && !$connection) {
        $hostinfo = array();
        if (preg_match('/^(.+):([0-9]+)$/', $hosts[$index], $hostinfo)) {
          $host = $hostinfo[1];
          $port = $hostinfo[2];
        } else {
          $host = $hosts[$index];
          $port = $this->Port;
        }

        $tls = ($this->SMTPSecure == 'tls');
        $ssl = ($this->SMTPSecure == 'ssl');

        if ($this->smtp->Connect(($ssl ? 'ssl://':'').$host, $port, $this->Timeout)) {

          $hello = ($this->Helo != '' ? $this->Helo : $this->ServerHostname());
          $this->smtp->Hello($hello);

          if ($tls) {
            if (!$this->smtp->StartTLS()) {
              throw new phpmailerException($this->Lang('tls'));
            }

            //We must resend HELO after tls negotiation
            $this->smtp->Hello($hello);
          }

          $connection = true;
          if ($this->SMTPAuth) {
            if (!$this->smtp->Authenticate($this->Username, $this->Password)) {
              throw new phpmailerException($this->Lang('authenticate'));
            }
          }
        }
        $index++;
        if (!$connection) {
          throw new phpmailerException($this->Lang('connect_host'));
        }
      }
    } catch (phpmailerException $e) {
      $this->smtp->Reset();
      throw $e;
    }
    return true;
  }

  /**
   * Closes the active SMTP session if one exists.
   * @return void
   */
  public function SmtpClose() {
    if(!is_null($this->smtp)) {
      if($this->smtp->Connected()) {
        $this->smtp->Quit();
        $this->smtp->Close();
      }
    }
  }

  /**
  * Sets the language for all class error messages.
  * Returns false if it cannot load the language file.  The default language is English.
  * @param string $langcode ISO 639-1 2-character language code (e.g. Portuguese: "br")
  * @param string $lang_path Path to the language file directory
  * @access public
  */
  function SetLanguage($langcode = 'en', $lang_path = 'language/') {
    //Define full set of translatable strings
    $PHPMAILER_LANG = array(
      'provide_address' => 'You must provide at least one recipient email address.',
      'mailer_not_supported' => ' mailer is not supported.',
      'execute' => 'Could not execute: ',
      'instantiate' => 'Could not instantiate mail function.',
      'authenticate' => 'SMTP Error: Could not authenticate.',
      'from_failed' => 'The following From address failed: ',
      'recipients_failed' => 'SMTP Error: The following recipients failed: ',
      'data_not_accepted' => 'SMTP Error: Data not accepted.',
      'connect_host' => 'SMTP Error: Could not connect to SMTP host.',
      'file_access' => 'Could not access file: ',
      'file_open' => 'File Error: Could not open file: ',
      'encoding' => 'Unknown encoding: ',
      'signing' => 'Signing Error: ',
      'smtp_error' => 'SMTP server error: ',
      'empty_message' => 'Message body empty',
      'invalid_address' => 'Invalid address',
      'variable_set' => 'Cannot set or reset variable: '
    );
    //Overwrite language-specific strings. This way we'll never have missing translations - no more "language string failed to load"!
    $l = true;
    if ($langcode != 'en') { //There is no English translation file
      $l = @include $lang_path.'phpmailer.lang-'.$langcode.'.php';
    }
    $this->language = $PHPMAILER_LANG;
    return ($l == true); //Returns false if language not found
  }

  /**
  * Return the current array of language strings
  * @return array
  */
  public function GetTranslations() {
    return $this->language;
  }

  /////////////////////////////////////////////////
  // METHODS, MESSAGE CREATION
  /////////////////////////////////////////////////

  /**
   * Creates recipient headers.
   * @access public
   * @return string
   */
  public function AddrAppend($type, $addr) {
    $addr_str = $type . ': ';
    $addresses = array();
    foreach ($addr as $a) {
      $addresses[] = $this->AddrFormat($a);
    }
    $addr_str .= implode(', ', $addresses);
    $addr_str .= $this->LE;

    return $addr_str;
  }

  /**
   * Formats an address correctly.
   * @access public
   * @return string
   */
  public function AddrFormat($addr) {
    if (empty($addr[1])) {
      return $this->SecureHeader($addr[0]);
    } else {
      return $this->EncodeHeader($this->SecureHeader($addr[1]), 'phrase') . " <" . $this->SecureHeader($addr[0]) . ">";
    }
  }

  /**
   * Wraps message for use with mailers that do not
   * automatically perform wrapping and for quoted-printable.
   * Original written by philippe.
   * @param string $message The message to wrap
   * @param integer $length The line length to wrap to
   * @param boolean $qp_mode Whether to run in Quoted-Printable mode
   * @access public
   * @return string
   */
  public function WrapText($message, $length, $qp_mode = false) {
    $soft_break = ($qp_mode) ? sprintf(" =%s", $this->LE) : $this->LE;
    // If utf-8 encoding is used, we will need to make sure we don't
    // split multibyte characters when we wrap
    $is_utf8 = (strtolower($this->CharSet) == "utf-8");

    $message = $this->FixEOL($message);
    if (substr($message, -1) == $this->LE) {
      $message = substr($message, 0, -1);
    }

    $line = explode($this->LE, $message);
    $message = '';
    for ($i = 0 ;$i < count($line); $i++) {
      $line_part = explode(' ', $line[$i]);
      $buf = '';
      for ($e = 0; $e<count($line_part); $e++) {
        $word = $line_part[$e];
        if ($qp_mode and (strlen($word) > $length)) {
          $space_left = $length - strlen($buf) - 1;
          if ($e != 0) {
            if ($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", $this->LE);
            } else {
              $message .= $buf . $soft_break;
            }
            $buf = '';
          }
          while (strlen($word) > 0) {
            $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", $this->LE);
            } else {
              $buf = $part;
            }
          }
        } else {
          $buf_o = $buf;
          $buf .= ($e == 0) ? $word : (' ' . $word);

          if (strlen($buf) > $length and $buf_o != '') {
            $message .= $buf_o . $soft_break;
            $buf = $word;
          }
        }
      }
      $message .= $buf . $this->LE;
    }

    return $message;
  }

  /**
   * Finds last character boundary prior to maxLength in a utf-8
   * quoted (printable) encoded string.
   * Original written by Colin Brown.
   * @access public
   * @param string $encodedText utf-8 QP text
   * @param int    $maxLength   find last character boundary prior to this length
   * @return int
   */
  public function UTF8CharBoundary($encodedText, $maxLength) {
    $foundSplitPos = false;
    $lookBack = 3;
    while (!$foundSplitPos) {
      $lastChunk = substr($encodedText, $maxLength - $lookBack, $lookBack);
      $encodedCharPos = strpos($lastChunk, "=");
      if ($encodedCharPos !== false) {
        // Found start of encoded character byte within $lookBack block.
        // Check the encoded byte value (the 2 chars after the '=')
        $hex = substr($encodedText, $maxLength - $lookBack + $encodedCharPos + 1, 2);
        $dec = hexdec($hex);
        if ($dec < 128) { // Single byte character.
          // If the encoded char was found at pos 0, it will fit
          // otherwise reduce maxLength to start of the encoded char
          $maxLength = ($encodedCharPos == 0) ? $maxLength :
          $maxLength - ($lookBack - $encodedCharPos);
          $foundSplitPos = true;
        } elseif ($dec >= 192) { // First byte of a multi byte character
          // Reduce maxLength to split at start of character
          $maxLength = $maxLength - ($lookBack - $encodedCharPos);
          $foundSplitPos = true;
        } elseif ($dec < 192) { // Middle byte of a multi byte character, look further back
          $lookBack += 3;
        }
      } else {
        // No encoded character found
        $foundSplitPos = true;
      }
    }
    return $maxLength;
  }


  /**
   * Set the body wrapping.
   * @access public
   * @return void
   */
  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;
    }
  }

  /**
   * Assembles message header.
   * @access public
   * @return string The assembled header
   */
  public function CreateHeader() {
    $result = '';

    // Set the boundaries
    $uniq_id = md5(uniqid(time()));
    $this->boundary[1] = 'b1_' . $uniq_id;
    $this->boundary[2] = 'b2_' . $uniq_id;
    $this->boundary[3] = 'b3_' . $uniq_id;

    $result .= $this->HeaderLine('Date', self::RFCDate());
    if($this->Sender == '') {
      $result .= $this->HeaderLine('Return-Path', trim($this->From));
    } else {
      $result .= $this->HeaderLine('Return-Path', trim($this->Sender));
    }

    // To be created automatically by mail()
    if($this->Mailer != 'mail') {
      if ($this->SingleTo === true) {
        foreach($this->to as $t) {
          $this->SingleToArray[] = $this->AddrFormat($t);
        }
      } else {
        if(count($this->to) > 0) {
          $result .= $this->AddrAppend('To', $this->to);
        } elseif (count($this->cc) == 0) {
          $result .= $this->HeaderLine('To', 'undisclosed-recipients:;');
        }
      }
    }

    $from = array();
    $from[0][0] = trim($this->From);
    $from[0][1] = $this->FromName;
    $result .= $this->AddrAppend('From', $from);

    // sendmail and mail() extract Cc from the header before sending
    if(count($this->cc) > 0) {
      $result .= $this->AddrAppend('Cc', $this->cc);
    }

    // sendmail and mail() extract Bcc from the header before sending
    if((($this->Mailer == 'sendmail') || ($this->Mailer == 'mail')) && (count($this->bcc) > 0)) {
      $result .= $this->AddrAppend('Bcc', $this->bcc);
    }

    if(count($this->ReplyTo) > 0) {
      $result .= $this->AddrAppend('Reply-to', $this->ReplyTo);
    }

    // mail() sets the subject itself
    if($this->Mailer != 'mail') {
      $result .= $this->HeaderLine('Subject', $this->EncodeHeader($this->SecureHeader($this->Subject)));
    }

    if($this->MessageID != '') {
      $result .= $this->HeaderLine('Message-ID', $this->MessageID);
    } else {
      $result .= sprintf("Message-ID: <%s@%s>%s", $uniq_id, $this->ServerHostname(), $this->LE);
    }
    $result .= $this->HeaderLine('X-Priority', $this->Priority);
    if($this->XMailer) {
      $result .= $this->HeaderLine('X-Mailer', $this->XMailer);
    } else {
      $result .= $this->HeaderLine('X-Mailer', 'PHPMailer '.$this->Version.' (http://code.google.com/a/apache-extras.org/p/phpmailer/)');
    }

    if($this->ConfirmReadingTo != '') {
      $result .= $this->HeaderLine('Disposition-Notification-To', '<' . trim($this->ConfirmReadingTo) . '>');
    }

    // Add custom headers
    for($index = 0; $index < count($this->CustomHeader); $index++) {
      $result .= $this->HeaderLine(trim($this->CustomHeader[$index][0]), $this->EncodeHeader(trim($this->CustomHeader[$index][1])));
    }
    if (!$this->sign_key_file) {
      $result .= $this->HeaderLine('MIME-Version', '1.0');
      $result .= $this->GetMailMIME();
    }

    return $result;
  }

  /**
   * Returns the message MIME.
   * @access public
   * @return string
   */
  public function GetMailMIME() {
    $result = '';
    switch($this->message_type) {
      case 'plain':
        $result .= $this->HeaderLine('Content-Transfer-Encoding', $this->Encoding);
        $result .= $this->TextLine('Content-Type: '.$this->ContentType.'; charset="'.$this->CharSet.'"');
        break;
      case 'inline':
        $result .= $this->HeaderLine('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', 'multipart/mixed;');
        $result .= $this->TextLine("\tboundary=\"" . $this->boundary[1] . '"');
        break;
      case 'alt':
      case 'alt_inline':
        $result .= $this->HeaderLine('Content-Type', 'multipart/alternative;');
        $result .= $this->TextLine("\tboundary=\"" . $this->boundary[1] . '"');
        break;
    }

    if($this->Mailer != 'mail') {
      $result .= $this->LE.$this->LE;
    }

    return $result;
  }

  /**
   * Assembles the message body.  Returns an empty string on failure.
   * @access public
   * @return string The assembled message body
   */
  public function CreateBody() {
    $body = '';

    if ($this->sign_key_file) {
      $body .= $this->GetMailMIME();
    }

    $this->SetWordWrap();

    switch($this->message_type) {
      case 'plain':
        $body .= $this->EncodeString($this->Body, $this->Encoding);
        break;
      case 'inline':
        $body .= $this->GetBoundary($this->boundary[1], '', '', '');
        $body .= $this->EncodeString($this->Body, $this->Encoding);
        $body .= $this->LE.$this->LE;
        $body .= $this->AttachAll("inline", $this->boundary[1]);
        break;
      case 'attach':
        $body .= $this->GetBoundary($this->boundary[1], '', '', '');
        $body .= $this->EncodeString($this->Body, $this->Encoding);
        $body .= $this->LE.$this->LE;
        $body .= $this->AttachAll("attachment", $this->boundary[1]);
        break;
      case 'inline_attach':
        $body .= $this->TextLine("--" . $this->boundary[1]);
        $body .= $this->HeaderLine('Content-Type', 'multipart/related;');
        $body .= $this->TextLine("\tboundary=\"" . $this->boundary[2] . '"');
        $body .= $this->LE;
        $body .= $this->GetBoundary($this->boundary[2], '', '', '');
        $body .= $this->EncodeString($this->Body, $this->Encoding);
        $body .= $this->LE.$this->LE;
        $body .= $this->AttachAll("inline", $this->boundary[2]);
        $body .= $this->LE;
        $body .= $this->AttachAll("attachment", $this->boundary[1]);
        break;
      case 'alt':
        $body .= $this->GetBoundary($this->boundary[1], '', 'text/plain', '');
        $body .= $this->EncodeString($this->AltBody, $this->Encoding);
        $body .= $this->LE.$this->LE;
        $body .= $this->GetBoundary($this->boundary[1], '', 'text/html', '');
        $body .= $this->EncodeString($this->Body, $this->Encoding);
        $body .= $this->LE.$this->LE;
        $body .= $this->EndBoundary($this->boundary[1]);
        break;
      case 'alt_inline':
        $body .= $this->GetBoundary($this->boundary[1], '', 'text/plain', '');
        $body .= $this->EncodeString($this->AltBody, $this->Encoding);
        $body .= $this->LE.$this->LE;
        $body .= $this->TextLine("--" . $this->boundary[1]);
        $body .= $this->HeaderLine('Content-Type', 'multipart/related;');
        $body .= $this->TextLine("\tboundary=\"" . $this->boundary[2] . '"');
        $body .= $this->LE;
        $body .= $this->GetBoundary($this->boundary[2], '', 'text/html', '');
        $body .= $this->EncodeString($this->Body, $this->Encoding);
        $body .= $this->LE.$this->LE;
        $body .= $this->AttachAll("inline", $this->boundary[2]);
        $body .= $this->LE;
        $body .= $this->EndBoundary($this->boundary[1]);
        break;
      case 'alt_attach':
        $body .= $this->TextLine("--" . $this->boundary[1]);
        $body .= $this->HeaderLine('Content-Type', 'multipart/alternative;');
        $body .= $this->TextLine("\tboundary=\"" . $this->boundary[2] . '"');
        $body .= $this->LE;
        $body .= $this->GetBoundary($this->boundary[2], '', 'text/plain', '');
        $body .= $this->EncodeString($this->AltBody, $this->Encoding);
        $body .= $this->LE.$this->LE;
        $body .= $this->GetBoundary($this->boundary[2], '', 'text/html', '');
        $body .= $this->EncodeString($this->Body, $this->Encoding);
        $body .= $this->LE.$this->LE;
        $body .= $this->EndBoundary($this->boundary[2]);
        $body .= $this->LE;
        $body .= $this->AttachAll("attachment", $this->boundary[1]);
        break;
      case 'alt_inline_attach':
        $body .= $this->TextLine("--" . $this->boundary[1]);
        $body .= $this->HeaderLine('Content-Type', 'multipart/alternative;');
        $body .= $this->TextLine("\tboundary=\"" . $this->boundary[2] . '"');
        $body .= $this->LE;
        $body .= $this->GetBoundary($this->boundary[2], '', 'text/plain', '');
        $body .= $this->EncodeString($this->AltBody, $this->Encoding);
        $body .= $this->LE.$this->LE;
        $body .= $this->TextLine("--" . $this->boundary[2]);
        $body .= $this->HeaderLine('Content-Type', 'multipart/related;');
        $body .= $this->TextLine("\tboundary=\"" . $this->boundary[3] . '"');
        $body .= $this->LE;
        $body .= $this->GetBoundary($this->boundary[3], '', 'text/html', '');
        $body .= $this->EncodeString($this->Body, $this->Encoding);
        $body .= $this->LE.$this->LE;
        $body .= $this->AttachAll("inline", $this->boundary[3]);
        $body .= $this->LE;
        $body .= $this->EndBoundary($this->boundary[2]);
        $body .= $this->LE;
        $body .= $this->AttachAll("attachment", $this->boundary[1]);
        break;
    }

    if ($this->IsError()) {
      $body = '';
    } elseif ($this->sign_key_file) {
      try {
        $file = tempnam('', 'mail');
        file_put_contents($file, $body); //TODO check this worked
        $signed = tempnam("", "signed");
        if (@openssl_pkcs7_sign($file, $signed, "file://".$this->sign_cert_file, array("file://".$this->sign_key_file, $this->sign_key_pass), NULL)) {
          @unlink($file);
          @unlink($signed);
          $body = file_get_contents($signed);
        } else {
          @unlink($file);
          @unlink($signed);
          throw new phpmailerException($this->Lang("signing").openssl_error_string());
        }
      } catch (phpmailerException $e) {
        $body = '';
        if ($this->exceptions) {
          throw $e;
        }
      }
    }

    return $body;
  }

  /**
   * Returns the start of a message boundary.
   * @access protected
   * @return string
   */
  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 .= $this->LE;
    $result .= $this->HeaderLine('Content-Transfer-Encoding', $encoding);
    $result .= $this->LE;

    return $result;
  }

  /**
   * Returns the end of a message boundary.
   * @access protected
   * @return string
   */
  protected function EndBoundary($boundary) {
    return $this->LE . '--' . $boundary . '--' . $this->LE;
  }

  /**
   * Sets the message type.
   * @access protected
   * @return void
   */
  protected function SetMessageType() {
    $this->message_type = array();
    if($this->AlternativeExists()) $this->message_type[] = "alt";
    if($this->InlineImageExists()) $this->message_type[] = "inline";
    if($this->AttachmentExists()) $this->message_type[] = "attach";
    $this->message_type = implode("_", $this->message_type);
    if($this->message_type == "") $this->message_type = "plain";
  }

  /**
   *  Returns a formatted header line.
   * @access public
   * @return string
   */
  public function HeaderLine($name, $value) {
    return $name . ': ' . $value . $this->LE;
  }

  /**
   * Returns a formatted mail line.
   * @access public
   * @return string
   */
  public function TextLine($value) {
    return $value . $this->LE;
  }

  /////////////////////////////////////////////////
  // CLASS METHODS, ATTACHMENTS
  /////////////////////////////////////////////////

  /**
   * Adds an attachment from a path on the filesystem.
   * Returns false if the file could not be found
   * or accessed.
   * @param string $path Path to the attachment.
   * @param string $name Overrides the attachment name.
   * @param string $encoding File encoding (see $Encoding).
   * @param string $type File extension (MIME) type.
   * @return bool
   */
  public function AddAttachment($path, $name = '', $encoding = 'base64', $type = 'application/octet-stream') {
    try {
      if ( !@is_file($path) ) {
        throw new phpmailerException($this->Lang('file_access') . $path, self::STOP_CONTINUE);
      }
      $filename = basename($path);
      if ( $name == '' ) {
        $name = $filename;
      }

      $this->attachment[] = array(
        0 => $path,
        1 => $filename,
        2 => $name,
        3 => $encoding,
        4 => $type,
        5 => false,  // isStringAttachment
        6 => 'attachment',
        7 => 0
      );

    } catch (phpmailerException $e) {
      $this->SetError($e->getMessage());
      if ($this->exceptions) {
        throw $e;
      }
      echo $e->getMessage()."\n";
      if ( $e->getCode() == self::STOP_CRITICAL ) {
        return false;
      }
    }
    return true;
  }

  /**
  * Return the current array of attachments
  * @return array
  */
  public function GetAttachments() {
    return $this->attachment;
  }

  /**
   * Attaches all fs, string, and binary attachments to the message.
   * Returns an empty string on failure.
   * @access protected
   * @return string
   */
  protected function AttachAll($disposition_type, $boundary) {
    // Return text of body
    $mime = array();
    $cidUniq = array();
    $incl = array();

    // Add all attachments
    foreach ($this->attachment as $attachment) {
      // CHECK IF IT IS A VALID DISPOSITION_FILTER
      if($attachment[6] == $disposition_type) {
        // Check for string attachment
        $bString = $attachment[5];
        if ($bString) {
          $string = $attachment[0];
        } else {
          $path = $attachment[0];
        }

        $inclhash = md5(serialize($attachment));
        if (in_array($inclhash, $incl)) { continue; }
        $incl[]      = $inclhash;
        $filename    = $attachment[1];
        $name        = $attachment[2];
        $encoding    = $attachment[3];
        $type        = $attachment[4];
        $disposition = $attachment[6];
        $cid         = $attachment[7];
        if ( $disposition == 'inline' && isset($cidUniq[$cid]) ) { continue; }
        $cidUniq[$cid] = true;

        $mime[] = sprintf("--%s%s", $boundary, $this->LE);
        $mime[] = sprintf("Content-Type: %s; name=\"%s\"%s", $type, $this->EncodeHeader($this->SecureHeader($name)), $this->LE);
        $mime[] = sprintf("Content-Transfer-Encoding: %s%s", $encoding, $this->LE);

        if($disposition == 'inline') {
          $mime[] = sprintf("Content-ID: <%s>%s", $cid, $this->LE);
        }

        $mime[] = sprintf("Content-Disposition: %s; filename=\"%s\"%s", $disposition, $this->EncodeHeader($this->SecureHeader($name)), $this->LE.$this->LE);

        // Encode as string attachment
        if($bString) {
          $mime[] = $this->EncodeString($string, $encoding);
          if($this->IsError()) {
            return '';
          }
          $mime[] = $this->LE.$this->LE;
        } else {
          $mime[] = $this->EncodeFile($path, $encoding);
          if($this->IsError()) {
            return '';
          }
          $mime[] = $this->LE.$this->LE;
        }
      }
    }

    $mime[] = sprintf("--%s--%s", $boundary, $this->LE);

    return implode("", $mime);
  }

  /**
   * Encodes attachment in requested format.
   * Returns an empty string on failure.
   * @param string $path The full path to the file
   * @param string $encoding The encoding to use; one of 'base64', '7bit', '8bit', 'binary', 'quoted-printable'
   * @see EncodeFile()
   * @access protected
   * @return string
   */
  protected function EncodeFile($path, $encoding = 'base64') {
    try {
      if (!is_readable($path)) {
        throw new phpmailerException($this->Lang('file_open') . $path, self::STOP_CONTINUE);
      }
      if (function_exists('get_magic_quotes')) {
        function get_magic_quotes() {
          return false;
        }
      }
      if (version_compare(PHP_VERSION, '5.3.0', '<')) {
        $magic_quotes = get_magic_quotes_runtime();
        set_magic_quotes_runtime(0);
      }
      $file_buffer  = file_get_contents($path);
      $file_buffer  = $this->EncodeString($file_buffer, $encoding);
      if (version_compare(PHP_VERSION, '5.3.0', '<')) {
        set_magic_quotes_runtime($magic_quotes);
      }
      return $file_buffer;
    } catch (Exception $e) {
      $this->SetError($e->getMessage());
      return '';
    }
  }

  /**
   * Encodes string to requested format.
   * Returns an empty string on failure.
   * @param string $str The text to encode
   * @param string $encoding The encoding to use; one of 'base64', '7bit', '8bit', 'binary', 'quoted-printable'
   * @access public
   * @return string
   */
  public function EncodeString($str, $encoding = 'base64') {
    $encoded = '';
    switch(strtolower($encoding)) {
      case 'base64':
        $encoded = chunk_split(base64_encode($str), 76, $this->LE);
        break;
      case '7bit':
      case '8bit':
        $encoded = $this->FixEOL($str);
        //Make sure it ends with a line break
        if (substr($encoded, -(strlen($this->LE))) != $this->LE)
          $encoded .= $this->LE;
        break;
      case 'binary':
        $encoded = $str;
        break;
      case 'quoted-printable':
        $encoded = $this->EncodeQP($str);
        break;
      default:
        $this->SetError($this->Lang('encoding') . $encoding);
        break;
    }
    return $encoded;
  }

  /**
   * Encode a header string to best (shortest) of Q, B, quoted or none.
   * @access public
   * @return string
   */
  public function EncodeHeader($str, $position = 'text') {
    $x = 0;

    switch (strtolower($position)) {
      case 'phrase':
        if (!preg_match('/[\200-\377]/', $str)) {
          // Can't use addslashes as we don't know what value has magic_quotes_sybase
          $encoded = addcslashes($str, "\0..\37\177\\\"");
          if (($str == $encoded) && !preg_match('/[^A-Za-z0-9!#$%&\'*+\/=?^_`{|}~ -]/', $str)) {
            return ($encoded);
          } else {
            return ("\"$encoded\"");
          }
        }
        $x = preg_match_all('/[^\040\041\043-\133\135-\176]/', $str, $matches);
        break;
      case 'comment':
        $x = preg_match_all('/[()"]/', $str, $matches);
        // Fall-through
      case 'text':
      default:
        $x += preg_match_all('/[\000-\010\013\014\016-\037\177-\377]/', $str, $matches);
        break;
    }

    if ($x == 0) {
      return ($str);
    }

    $maxlen = 75 - 7 - strlen($this->CharSet);
    // Try to select the encoding which should produce the shortest output
    if (strlen($str)/3 < $x) {
      $encoding = 'B';
      if (function_exists('mb_strlen') && $this->HasMultiBytes($str)) {
        // Use a custom function which correctly encodes and wraps long
        // multibyte strings without breaking lines within a character
        $encoded = $this->Base64EncodeWrapMB($str);
      } else {
        $encoded = base64_encode($str);
        $maxlen -= $maxlen % 4;
        $encoded = trim(chunk_split($encoded, $maxlen, "\n"));
      }
    } else {
      $encoding = 'Q';
      $encoded = $this->EncodeQ($str, $position);
      $encoded = $this->WrapText($encoded, $maxlen, true);
      $encoded = str_replace('='.$this->LE, "\n", trim($encoded));
    }

    $encoded = preg_replace('/^(.*)$/m', " =?".$this->CharSet."?$encoding?\\1?=", $encoded);
    $encoded = trim(str_replace("\n", $this->LE, $encoded));

    return $encoded;
  }

  /**
   * Checks if a string contains multibyte characters.
   * @access public
   * @param string $str multi-byte text to wrap encode
   * @return bool
   */
  public function HasMultiBytes($str) {
    if (function_exists('mb_strlen')) {
      return (strlen($str) > mb_strlen($str, $this->CharSet));
    } else { // Assume no multibytes (we can't handle without mbstring functions anyway)
      return false;
    }
  }

  /**
   * Correctly encodes and wraps long multibyte strings for mail headers
   * without breaking lines within a character.
   * Adapted from a function by paravoid at http://uk.php.net/manual/en/function.mb-encode-mimeheader.php
   * @access public
   * @param string $str multi-byte text to wrap encode
   * @return string
   */
  public function Base64EncodeWrapMB($str) {
    $start = "=?".$this->CharSet."?B?";
    $end = "?=";
    $encoded = "";

    $mb_length = mb_strlen($str, $this->CharSet);
    // Each line must have length <= 75, including $start and $end
    $length = 75 - strlen($start) - strlen($end);
    // Average multi-byte ratio
    $ratio = $mb_length / strlen($str);
    // Base64 has a 4:3 ratio
    $offset = $avgLength = floor($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 . $this->LE;
    }

    // Chomp the last linefeed
    $encoded = substr($encoded, 0, -strlen($this->LE));
    return $encoded;
  }

  /**
  * Encode string to quoted-printable.
  * Only uses standard PHP, slow, but will always work
  * @access public
  * @param string $string the text to encode
  * @param integer $line_max Number of chars allowed on a line before wrapping
  * @return string
  */
  public function EncodeQPphp( $input = '', $line_max = 76, $space_conv = false) {
    $hex = array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F');
    $lines = preg_split('/(?:\r\n|\r|\n)/', $input);
    $eol = …