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<?php
require_once dirname(__FILE__).'/accesscheck.php';


/***************************************
** Title.........: HTML Mime Mail class
** Version.......: 2.0.3
** Author........: Richard Heyes <richard@phpguru.org>
** Filename......: class.html.mime.mail.class
** Last changed..: 21 December 2001
** License.......: Free to use. If you find it useful
**                 though, feel free to buy me something
**                 from my wishlist :)
**                 http://www.amazon.co.uk/exec/obidos/wishlist/S8H2UOGMPZK6
** Modified for use with PHPlist
** Modification...: 3 April 2002
** Modified by....: Michiel Dethmers
***************************************/

require_once($GLOBALS["coderoot"].'mimePart.php');

class html_mime_mail{

  var $html;
  var $text;
  var $output;
  var $html_text;
  var $html_images;
  var $image_types;
  var $build_params;
  var $attachments;
  var $headers;

/***************************************
** Constructor function. Sets the headers
** if supplied.
***************************************/

  function html_mime_mail($headers = array()){

    /***************************************
        ** Make sure this is defined. This should
    ** be \r\n, but due to many people having
    ** trouble with that, it is by default \n
    ** If you leave it as is, you will be breaking
    ** quite a few standards.
        ***************************************/

    if(!defined('CRLF'))
      define('CRLF', "\n", TRUE);

    /***************************************
        ** Initialise some variables.
        ***************************************/

    $this->html_images  = array();
    $this->headers    = array();

    /***************************************
        ** If you want the auto load functionality
    ** to find other image/file types, add the
    ** extension and content type here.
        ***************************************/

    $this->image_types = array(
                  'gif'  => 'image/gif',
                  'jpg'  => 'image/jpeg',
                  'jpeg'  => 'image/jpeg',
                  'jpe'  => 'image/jpeg',
                  'bmp'  => 'image/bmp',
                  'png'  => 'image/png',
                  'tif'  => 'image/tiff',
                  'tiff'  => 'image/tiff',
                  'swf'  => 'application/x-shockwave-flash'
                  );

    /***************************************
        ** Set these up
        ***************************************/

    $this->build_params['html_encoding']  = 'quoted-printable';
    $this->build_params['text_encoding']  = '7bit';
    $this->build_params['html_charset']    = 'iso-8859-1';
    $this->build_params['text_charset']    = 'iso-8859-1';
    $this->build_params['text_wrap']    = 998;

    /***************************************
        ** Make sure the MIME version header is first.
        ***************************************/

    $this->headers[] = 'MIME-Version: 1.0';

    foreach($headers as $value){
      if(!empty($value))
        $this->headers[] = $value;
    }
  }

/***************************************
** This function will read a file in
** from a supplied filename and return
** it. This can then be given as the first
** argument of the the functions
** add_html_image() or add_attachment().
***************************************/

  function get_file_original($filename){

    $return = '';
    if($fp = fopen($filename, 'rb')){
      while(!feof($fp)){
        $return .= fread($fp, 1024);
      }
      fclose($fp);
      return $return;

    }else{
      return FALSE;
    }
  }

  function get_file($templateid,$filename){
    global $tables;

    $req = Sql_Fetch_Row_Query(sprintf('select data from %s where template = %d and filename = "%s"',
      $tables["templateimage"],$templateid,$filename));
     return base64_decode($req[0]);
  }

/***************************************
** Function for extracting images from
** html source. This function will look
** through the html code supplied by add_html()
** and find any file that ends in one of the
** extensions defined in $obj->image_types.
** If the file exists it will read it in and
** embed it, (not an attachment).
**
** Function contributed by Dan Allen
***************************************/

  function find_html_images_original($images_dir) {

    // Build the list of image extensions
    while(list($key,) = each($this->image_types))
      $extensions[] = $key;

    preg_match_all('/"([^"]+\.('.implode('|', $extensions).'))"/Ui', $this->html, $images);

    for($i=0; $i<count($images[1]); $i++){
      if(file_exists($images_dir.$images[1][$i])){
        $html_images[] = $images[1][$i];
        $this->html = str_replace($images[1][$i], basename($images[1][$i]), $this->html);
      }
    }

    if(!empty($html_images)){

      // If duplicate images are embedded, they may show up as attachments, so remove them.
      $html_images = array_unique($html_images);
      sort($html_images);

      for($i=0; $i<count($html_images); $i++){
        if($image = $this->get_file($images_dir.$html_images[$i])){
          $content_type = $this->image_types[substr($html_images[$i], strrpos($html_images[$i], '.') + 1)];
          $this->add_html_image($image, basename($html_images[$i]), $content_type);
        }
      }
    }
  }

  function image_exists($templateid,$filename) {
    global $tables;
    $req = Sql_Query(sprintf('select * from %s where template = %d and filename = "%s"',
      $tables["templateimage"],$templateid,$filename));
    return Sql_Affected_Rows();
  }

  function find_html_images($templateid) {

    // Build the list of image extensions
    while(list($key,) = each($this->image_types))
      $extensions[] = $key;

    preg_match_all('/"([^"]+\.('.implode('|', $extensions).'))"/Ui', $this->html, $images);

    for($i=0; $i<count($images[1]); $i++){
      if($this->image_exists($templateid,$images[1][$i])){
        $html_images[] = $images[1][$i];
        $this->html = str_replace($images[1][$i], basename($images[1][$i]), $this->html);
      }
    }

    if(!empty($html_images)){

      // If duplicate images are embedded, they may show up as attachments, so remove them.
      $html_images = array_unique($html_images);
      sort($html_images);

      for($i=0; $i<count($html_images); $i++){
        if($image = $this->get_file($templateid,$html_images[$i])){
          $content_type = $this->image_types[substr($html_images[$i], strrpos($html_images[$i], '.') + 1)];
          $this->add_html_image($image, basename($html_images[$i]), $content_type);
        }
      }
    }
  }


/***************************************
** Adds plain text. Use this function
** when NOT sending html email
***************************************/

  function add_text($text = ''){
    $this->text = $text;
  }

  function append_text($text = ''){
    $this->text .= "\n".$text;
  }

/***************************************
** Adds a html part to the mail.
** Also replaces image names with
** content-id's.
***************************************/

  function add_html($html, $text = NULL, $templateid = 0){

    $this->html      = $html;
    $this->html_text  = $text;

  #  if(isset($images_dir))
      $this->find_html_images($templateid);
  }

/***************************************
** Adds an image to the list of embedded
** images.
***************************************/

  function add_html_image($file, $name = '', $c_type='application/octet-stream'){
    $this->html_images[] = array(
                    'body'   => $file,
                    'name'   => $name,
                    'c_type' => $c_type,
                    'cid'    => md5(uniqid(time()))
                  );
  }

/***************************************
** Adds a PDF to the list of embedded
** pdfs.
***************************************/

  function add_pdf($file, $name = '', $c_type='application/pdf'){
    $this->html_images[] = array(
                    'body'   => $file,
                    'name'   => $name,
                    'c_type' => $c_type,
                    'cid'    => md5(uniqid(time()))
                  );
  }

/***************************************
** Adds a file to the list of attachments.
***************************************/

  function add_attachment($file, $name = '', $c_type='application/octet-stream', $encoding = 'base64'){
    $this->attachments[] = array(
                  'body'    => $file,
                  'name'    => $name,
                  'c_type'  => $c_type,
                  'encoding'  => $encoding
                  );
  }

/***************************************
** Adds a text subpart to a mime_part object
***************************************/

  function &add_text_part(&$obj, $text){

    $params['content_type'] = 'text/plain';
    $params['encoding']     = $this->build_params['text_encoding'];
    $params['charset']      = $this->build_params['text_charset'];
    if(is_object($obj)){
      return $obj->addSubpart($text, $params);
    }else{
      return new Mail_mimePart($text, $params);
    }
  }

/***************************************
** Adds a html subpart to a mime_part object
***************************************/

  function &add_html_part(&$obj){

    $params['content_type'] = 'text/html';
    $params['encoding']     = $this->build_params['html_encoding'];
    $params['charset']      = $this->build_params['html_charset'];
    if(is_object($obj)){
      return $obj->addSubpart($this->html, $params);
    }else{
      return new Mail_mimePart($this->html, $params);
    }
  }

/***************************************
** Starts a message with a mixed part
***************************************/

  function &add_mixed_part(){

    $params['content_type'] = 'multipart/mixed';
    $params['encoding']     = '7bit';
    return new Mail_mimePart('', $params);
  }

/***************************************
** Adds an alternative part to a mime_part object
***************************************/

  function &add_alternative_part(&$obj){

    $params['content_type'] = 'multipart/alternative';
    $params['encoding']     = '7bit';
    if(is_object($obj)){
      return $obj->addSubpart('', $params);
    }else{
      $ret = new Mail_mimePart('', $params);
      return $ret;
    }
  }

/***************************************
** Adds a html subpart to a mime_part object
***************************************/

  function &add_related_part(&$obj){

    $params['content_type'] = 'multipart/related';
    $params['encoding']     = '7bit';
    if(is_object($obj)){
      return $obj->addSubpart('', $params);
    }else{
      $ret = new Mail_mimePart('', $params);
      return $ret;
    }
  }

/***************************************
** Adds an html image subpart to a mime_part object
***************************************/

  function &add_html_image_part(&$obj, $value){

    $params['content_type'] = $value['c_type'];
    $params['encoding']     = 'base64';
    $params['disposition']  = 'inline';
    $params['dfilename']    = $value['name'];
    $params['cid']          = $value['cid'];
    $obj->addSubpart($value['body'], $params);
  }

/***************************************
** Adds an attachment subpart to a mime_part object
***************************************/

  function &add_attachment_part(&$obj, $value){

    $params['content_type'] = $value['c_type'];
    $params['encoding']     = $value['encoding'];
    $params['disposition']  = 'attachment';
    $params['dfilename']    = $value['name'];
    $obj->addSubpart($value['body'], $params);
  }

/***************************************
** Builds the multipart message from the
** list ($this->_parts). $params is an
** array of parameters that shape the building
** of the message. Currently supported are:
**
** $params['html_encoding'] - The type of encoding to use on html. Valid options are
**                            "7bit", "quoted-printable" or "base64" (all without quotes).
**                            7bit is EXPRESSLY NOT RECOMMENDED. Default is quoted-printable
** $params['text_encoding'] - The type of encoding to use on plain text Valid options are
**                            "7bit", "quoted-printable" or "base64" (all without quotes).
**                            Default is 7bit
** $params['text_wrap']     - The character count at which to wrap 7bit encoded data.
**                            Default this is 998.
** $params['html_charset']  - The character set to use for a html section.
**                            Default is iso-8859-1
** $params['text_charset']  - The character set to use for a text section.
**                          - Default is iso-8859-1
***************************************/

  function build_message($params = array()){

    if(count($params) > 0)
      while(list($key, $value) = each($params))
        $this->build_params[$key] = $value;

    if(!empty($this->html_images))
      foreach($this->html_images as $value)
        $this->html = str_replace('"'.$value['name'].'"', '"cid:'.$value['cid'].'"', $this->html);

    $null        = NULL;
    $attachments = !empty($this->attachments) ? TRUE : FALSE;
    $html_images = !empty($this->html_images) ? TRUE : FALSE;
    $html        = !empty($this->html)        ? TRUE : FALSE;
    $text        = isset($this->text)         ? TRUE : FALSE;

    switch(TRUE){
      case $text AND !$attachments:
        $message =& $this->add_text_part($null, $this->text);
        break;

      case !$text AND $attachments AND !$html:
        $message =& $this->add_mixed_part();

        for($i=0; $i<count($this->attachments); $i++)
          $this->add_attachment_part($message, $this->attachments[$i]);
        break;

      case $text AND $attachments:
        $message =& $this->add_mixed_part();
        $this->add_text_part($message, $this->text);

        for($i=0; $i<count($this->attachments); $i++)
          $this->add_attachment_part($message, $this->attachments[$i]);
        break;

      case $html AND !$attachments AND !$html_images:
        if(!is_null($this->html_text)){
          $message =& $this->add_alternative_part($null);
          $this->add_text_part($message, $this->html_text);
          $this->add_html_part($message);
        }else{
          $message =& $this->add_html_part($null);
        }
        break;

      case $html AND !$attachments AND $html_images:
        if(!is_null($this->html_text)){
          $message =& $this->add_alternative_part($null);
          $this->add_text_part($message, $this->html_text);
          $related =& $this->add_related_part($message);
        }else{
          $message =& $this->add_related_part($null);
          $related =& $message;
        }
        $this->add_html_part($related);
        for($i=0; $i<count($this->html_images); $i++)
          $this->add_html_image_part($related, $this->html_images[$i]);
        break;

      case $html AND $attachments AND !$html_images:
        $message =& $this->add_mixed_part();
        if(!is_null($this->html_text)){
          $alt =& $this->add_alternative_part($message);
          $this->add_text_part($alt, $this->html_text);
          $this->add_html_part($alt);
        }else{
          $this->add_html_part($message);
        }
        for($i=0; $i<count($this->attachments); $i++)
          $this->add_attachment_part($message, $this->attachments[$i]);
        break;

      case $html AND $attachments AND $html_images:
        $message =& $this->add_mixed_part();
        if(!is_null($this->html_text)){
          $alt =& $this->add_alternative_part($message);
          $this->add_text_part($alt, $this->html_text);
          $rel =& $this->add_related_part($alt);
        }else{
          $rel =& $this->add_related_part($message);
        }
        $this->add_html_part($rel);
        for($i=0; $i<count($this->html_images); $i++)
          $this->add_html_image_part($rel, $this->html_images[$i]);
        for($i=0; $i<count($this->attachments); $i++)
          $this->add_attachment_part($message, $this->attachments[$i]);
        break;

    }

    if(isset($message)){
      $output = $message->encode();
      $this->output = $output['body'];

      foreach($output['headers'] as $key => $value){
        $headers[] = $key.': '.$value;
      }

      $this->headers = array_merge($this->headers, $headers);
      return TRUE;
    }else
      return FALSE;
  }

/***************************************
** Sends the mail.
***************************************/

  function send($to_name, $to_addr, $from_name, $from_addr, $subject = '', $headers = ''){

    $to    = ($to_name != '')   ? '"'.$to_name.'" <'.$to_addr.'>' : $to_addr;
    $from  = ($from_name != '') ? '"'.$from_name.'" <'.$from_addr.'>' : $from_addr;

    if(is_string($headers))
      $headers = explode(CRLF, trim($headers));

    for($i=0; $i<count($headers); $i++){
      if(is_array($headers[$i]))
        for($j=0; $j<count($headers[$i]); $j++)
          if($headers[$i][$j] != '')
            $xtra_headers[] = $headers[$i][$j];

      if($headers[$i] != '')
        $xtra_headers[] = $headers[$i];
    }
    if(!isset($xtra_headers))
      $xtra_headers = array();

    return sendMail($to, $subject, $this->output, 'From: '.$from.CRLF.implode(CRLF, $this->headers).CRLF.implode(CRLF, $xtra_headers));
  }

/***************************************
** Use this method to deliver using direct
** smtp connection. Relies upon the smtp
** class available from http://www.heyes-computing.net
** You probably downloaded it with this class though.
**
** bool smtp_send(
**                object The smtp object,
**                array  Parameters to pass to the smtp object
**                       See example.1.php for details.
**               )
***************************************/

  function smtp_send(&$smtp, $params = array()){

    foreach($params as $key => $value){
      switch($key){
        case 'headers':
          $headers = $value;
          break;

        case 'from':
          $send_params['from'] = $value;
          break;

        case 'recipients':
          $send_params['recipients'] = $value;
          break;
      }
    }

    $send_params['body']  = $this->output;
    $send_params['headers']  = array_merge($this->headers, $headers);

    return $smtp->send($send_params);
  }

/***************************************
** Use this method to return the email
** in message/rfc822 format. Useful for
** adding an email to another email as
** an attachment. there's a commented
** out example in example.php.
**
** string get_rfc822(string To name,
**       string To email,
**       string From name,
**       string From email,
**       [string Subject,
**        string Extra headers])
***************************************/

  function get_rfc822($to_name, $to_addr, $from_name, $from_addr, $subject = '', $headers = ''){

    // Make up the date header as according to RFC822
    $date = 'Date: '.date('D, d M y H:i:s');

    $to   = ($to_name   != '') ? 'To: "'.$to_name.'" <'.$to_addr.'>' : 'To: '.$to_addr;
    $from = ($from_name != '') ? 'From: "'.$from_name.'" <'.$from_addr.'>' : 'From: '.$from_addr;

    if(is_string($subject))
      $subject = 'Subject: '.$subject;

    if(is_string($headers))
      $headers = explode(CRLF, trim($headers));

    for($i=0; $i<count($headers); $i++){
      if(is_array($headers[$i]))
        for($j=0; $j<count($headers[$i]); $j++)
          if($headers[$i][$j] != '')
            $xtra_headers[] = $headers[$i][$j];

      if($headers[$i] != '')
        $xtra_headers[] = $headers[$i];
    }

    if(!isset($xtra_headers))
      $xtra_headers = array();

    $headers = array_merge($this->headers, $xtra_headers);

    return $date.CRLF.$from.CRLF.$to.CRLF.$subject.CRLF.implode(CRLF, $headers).CRLF.CRLF.$this->output;
  }


} // End of class.
?>