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   1  <?php
   2  /***************************************************************************

   3                                  emailer.php

   4                               -------------------

   5      begin                : Sunday Aug. 12, 2001

   6      copyright            : (C) 2001 The phpBB Group

   7      email                : support@phpbb.com

   8  

   9      Id: emailer.php,v 1.15.2.34 2003/07/26 11:41:35 acydburn Exp

  10  

  11  ***************************************************************************/
  12  /***************************************************************************

  13  * phpbb2 forums port version 2.0.5 (c) 2003 - Nuke Cops (http://nukecops.com)

  14  *

  15  * Ported by Nuke Cops to phpbb2 standalone 2.0.5 Test

  16  * and debugging completed by the Elite Nukers and site members.

  17  *

  18  * You run this package at your sole risk. Nuke Cops and affiliates cannot

  19  * be held liable if anything goes wrong. You are advised to test this

  20  * package on a development system. Backup everything before implementing

  21  * in a production environment. If something goes wrong, you can always

  22  * backout and restore your backups.

  23  *

  24  * Installing and running this also means you agree to the terms of the AUP

  25  * found at Nuke Cops.

  26  *

  27  * This is version 2.0.5 of the phpbb2 forum port for PHP-Nuke. Work is based

  28  * on Tom Nitzschner's forum port version 2.0.6. Tom's 2.0.6 port was based

  29  * on the phpbb2 standalone version 2.0.3. Our version 2.0.5 from Nuke Cops is

  30  * now reflecting phpbb2 standalone 2.0.5 that fixes some bugs and the

  31  * invalid_session error message.

  32  ***************************************************************************/
  33  /***************************************************************************

  34   *   This file is part of the phpBB2 port to Nuke 6.0 (c) copyright 2002

  35   *   by Tom Nitzschner (tom@toms-home.com)

  36   *   http://bbtonuke.sourceforge.net (or http://www.toms-home.com)

  37   *

  38   *   As always, make a backup before messing with anything. All code

  39   *   release by me is considered sample code only. It may be fully

  40   *   functual, but you use it at your own risk, if you break it,

  41   *   you get to fix it too. No waranty is given or implied.

  42   *

  43   *   Please post all questions/request about this port on http://bbtonuke.sourceforge.net first,

  44   *   then on my site. All original header code and copyright messages will be maintained

  45   *   to give credit where credit is due. If you modify this, the only requirement is

  46   *   that you also maintain all original copyright messages. All my work is released

  47   *   under the GNU GENERAL PUBLIC LICENSE. Please see the README for more information.

  48   *

  49   ***************************************************************************/
  50  /***************************************************************************

  51   *

  52   *   This program is free software; you can redistribute it and/or modify

  53   *   it under the terms of the GNU General Public License as published by

  54   *   the Free Software Foundation; either version 2 of the License, or

  55   *   (at your option) any later version.

  56   *

  57   ***************************************************************************/
  58  
  59  //

  60  // The emailer class has support for attaching files, that isn't implemented

  61  // in the 2.0 release but we can probable find some way of using it in a future

  62  // release

  63  //

  64  
  65  if (!defined('IN_PHPBB')) {
  66      die();
  67  }
  68  
  69  class emailer
  70  {
  71          var $msg, $subject, $extra_headers;
  72          var $addresses, $reply_to, $from;
  73          var $use_smtp;
  74  
  75          var $tpl_msg = array();
  76  
  77          function emailer($use_smtp)
  78          {
  79                  $this->reset();
  80                  $this->use_smtp = $use_smtp;
  81          $this->reply_to = $this->from = '';
  82      }
  83  
  84      // Resets all the data (address, template file, etc etc to default

  85  	function reset()
  86      {
  87          $this->addresses = array();
  88          $this->vars = $this->msg = $this->extra_headers = '';
  89      }
  90  
  91      // Sets an email address to send to

  92  	function email_address($address)
  93      {
  94          $this->addresses['to'] = trim($address);
  95      }
  96  
  97      function cc($address)
  98      {
  99          $this->addresses['cc'][] = trim($address);
 100      }
 101  
 102  	function bcc($address)
 103      {
 104          $this->addresses['bcc'][] = trim($address);
 105      }
 106  
 107  	function replyto($address)
 108      {
 109          $this->reply_to = trim($address);
 110          }
 111  
 112          function from($address)
 113          {
 114                  $this->from = trim($address);
 115          }
 116  
 117          // set up subject for mail

 118          function set_subject($subject = '')
 119          {
 120                  $this->subject = trim(preg_replace('#[\n\r]+#s', '', $subject));
 121          }
 122  
 123          // set up extra mail headers

 124          function extra_headers($headers)
 125          {
 126                  $this->extra_headers .= trim($headers) . "\n";
 127          }
 128  
 129          function use_template($template_file, $template_lang = '')
 130          {
 131                  global $board_config, $phpbb_root_path;
 132  
 133                  if (trim($template_file) == '')
 134                  {
 135                          message_die(GENERAL_ERROR, 'No template file set', '', __LINE__, __FILE__);
 136                  }
 137  
 138                  if (trim($template_lang) == '')
 139                  {
 140                          $template_lang = $board_config['default_lang'];
 141                  }
 142  
 143                  if (empty($this->tpl_msg[$template_lang . $template_file]))
 144                  {
 145                          $tpl_file = $phpbb_root_path . 'language/lang_' . $template_lang . '/email/' . $template_file . '.tpl';
 146  
 147                          if (!@file_exists(@phpbb_realpath($tpl_file)))
 148                          {
 149                                  $tpl_file = $phpbb_root_path . 'language/lang_' . $board_config['default_lang'] . '/email/' . $template_file . '.tpl';
 150  
 151                                  if (!@file_exists(@phpbb_realpath($tpl_file)))
 152                                  {
 153                                          message_die(GENERAL_ERROR, 'Could not find email template file :: ' . $template_file, '', __LINE__, __FILE__);
 154                                  }
 155                          }
 156  
 157                          if (!($fd = @fopen($tpl_file, 'r')))
 158                          {
 159                                  message_die(GENERAL_ERROR, 'Failed opening template file :: ' . $tpl_file, '', __LINE__, __FILE__);
 160                          }
 161  
 162                          $this->tpl_msg[$template_lang . $template_file] = fread($fd, filesize($tpl_file));
 163                          fclose($fd);
 164                  }
 165  
 166                  $this->msg = $this->tpl_msg[$template_lang . $template_file];
 167  
 168                  return true;
 169          }
 170  
 171          // assign variables

 172          function assign_vars($vars)
 173          {
 174                  $this->vars = (empty($this->vars)) ? $vars : $this->vars . $vars;
 175          }
 176  
 177          // Send the mail out to the recipients set previously in var $this->address

 178          function send()
 179          {
 180                  global $board_config, $lang, $phpEx, $phpbb_root_path, $db;
 181  
 182              // Escape all quotes, else the eval will fail.

 183                  $this->msg = str_replace ("'", "\'", $this->msg);
 184                  $this->msg = preg_replace('#\{([a-z0-9\-_]*?)\}#is', "' . $\\1 . '", $this->msg);

 185  
 186                  // Set vars

 187                  reset ($this->vars);
 188                  while (list($key, $val) = each($this->vars))
 189                  {
 190                          $$key = $val;
 191                  }
 192  
 193                  eval("\$this->msg = '$this->msg';");
 194  
 195                  // Clear vars

 196                  reset ($this->vars);
 197                  while (list($key, $val) = each($this->vars))
 198                  {
 199                          unset($$key);
 200                  }
 201  
 202                  // We now try and pull a subject from the email body ... if it exists,

 203                  // do this here because the subject may contain a variable

 204                  $drop_header = '';
 205                  $match = array();
 206                  if (preg_match('#^(Subject:(.*?))$#m', $this->msg, $match))
 207                  {
 208                          $this->subject = (trim($match[2]) != '') ? trim($match[2]) : (($this->subject != '') ? $this->subject : 'No Subject');
 209                          $drop_header .= '[\r\n]*?' . phpbb_preg_quote($match[1], '#');
 210                  }
 211                  else
 212                  {
 213                          $this->subject = (($this->subject != '') ? $this->subject : 'No Subject');
 214                  }
 215  
 216                  if (preg_match('#^(Charset:(.*?))$#m', $this->msg, $match))
 217                  {
 218                          $this->encoding = (trim($match[2]) != '') ? trim($match[2]) : trim($lang['ENCODING']);
 219                          $drop_header .= '[\r\n]*?' . phpbb_preg_quote($match[1], '#');
 220                  }
 221                  else
 222                  {
 223                          $this->encoding = trim($lang['ENCODING']);
 224                  }
 225  
 226                  if ($drop_header != '')
 227                  {
 228                          $this->msg = trim(preg_replace('#' . $drop_header . '#s', '', $this->msg));
 229                  }
 230  
 231          $to = $this->addresses['to'];
 232  
 233          $cc = (count($this->addresses['cc'])) ? implode(', ', $this->addresses['cc']) : '';
 234          $bcc = (count($this->addresses['bcc'])) ? implode(', ', $this->addresses['bcc']) : '';
 235  
 236          // Build header

 237          $this->extra_headers = (($this->reply_to != '') ? "Reply-to: $this->reply_to\n" : '') . (($this->from != '') ? "From: $this->from\n" : "From: " . $board_config['board_email'] . "\n") . "Return-Path: " . $board_config['board_email'] . "\nMessage-ID: <" . md5(uniqid(time())) . "@" . $board_config['server_name'] . ">\nMIME-Version: 1.0\nContent-type: text/plain; charset=" . $this->encoding . "\nContent-transfer-encoding: 8bit\nDate: " . date('r', time()) . "\nX-Priority: 3\nX-MSMail-Priority: Normal\nX-Mailer: PHP\nX-MimeOLE: Produced By phpBB2\n" . $this->extra_headers . (($cc != '') ? "Cc: $cc\n" : '')  . (($bcc != '') ? "Bcc: $bcc\n" : '');
 238  
 239                  // Send message ... removed $this->encode() from subject for time being

 240                  if ( $this->use_smtp )
 241                  {
 242                          if ( !defined('SMTP_INCLUDED') )
 243                          {
 244                                  include ("includes/smtp.php");
 245                          }
 246  
 247                          $result = smtpmail($to, $this->subject, $this->msg, $this->extra_headers);
 248                  }
 249                  else
 250                  {
 251              $empty_to_header = ($to == '') ? TRUE : FALSE;
 252              $to = ($to == '') ? (($board_config['sendmail_fix']) ? ' ' : 'Undisclosed-recipients:;') : $to;
 253                          $result = @mail($to, $this->subject, preg_replace("#(?<!\r)\n#s", "\n", $this->msg), $this->extra_headers);
 254  
 255                          if (!$result && !$board_config['sendmail_fix'] && $empty_to_header)
 256                          {
 257                                  $to = ' ';
 258  
 259                                  $sql = "UPDATE " . CONFIG_TABLE . "
 260                                          SET config_value = '1'
 261                                          WHERE config_name = 'sendmail_fix'";
 262                                  if (!$db->sql_query($sql))
 263                                  {
 264                                          message_die(GENERAL_ERROR, 'Unable to update config table', '', __LINE__, __FILE__, $sql);
 265                                  }
 266  
 267                                  $board_config['sendmail_fix'] = 1;
 268                                  $result = @mail($to, $this->subject, preg_replace("#(?<!\r)\n#s", "\n", $this->msg), $this->extra_headers);
 269                          }
 270                  }
 271  
 272                  // Did it work?

 273                  if (!$result)
 274                  {
 275                          message_die(GENERAL_ERROR, 'Failed sending email :: ' . (($this->use_smtp) ? 'SMTP' : 'PHP') . ' :: ' . $result, '', __LINE__, __FILE__);
 276                  }
 277  
 278                  return true;
 279          }
 280  
 281          // Encodes the given string for proper display for this encoding ... nabbed

 282          // from php.net and modified. There is an alternative encoding method which

 283          // may produce lesd output but it's questionable as to its worth in this

 284          // scenario IMO

 285          function encode($str)
 286          {
 287                  if ($this->encoding == '')
 288                  {
 289                          return $str;
 290                  }
 291  
 292                  // define start delimimter, end delimiter and spacer

 293                  $end = "?=";
 294                  $start = "=?$this->encoding?B?";
 295                  $spacer = "$end\r\n $start";
 296  
 297                  // determine length of encoded text within chunks and ensure length is even

 298                  $length = 75 - strlen($start) - strlen($end);
 299                  $length = floor($length / 2) * 2;
 300  
 301                  // encode the string and split it into chunks with spacers after each chunk

 302                  $str = chunk_split(base64_encode($str), $length, $spacer);
 303  
 304                  // remove trailing spacer and add start and end delimiters

 305                  $str = preg_replace('#' . phpbb_preg_quote($spacer, '#') . '$#', '', $str);
 306  
 307                  return $start . $str . $end;
 308          }
 309  
 310          //

 311          // Attach files via MIME.

 312          //

 313          function attachFile($filename, $mimetype = "application/octet-stream", $szFromAddress, $szFilenameToDisplay)
 314          {
 315                  global $lang;
 316                  $mime_boundary = "--==================_846811060==_";
 317  
 318                  $this->msg = '--' . $mime_boundary . "\nContent-Type: text/plain;\n\tcharset=\"" . $lang['ENCODING'] . "\"\n\n" . $this->msg;
 319  
 320                  if ($mime_filename)
 321                  {
 322                          $filename = $mime_filename;
 323                          $encoded = $this->encode_file($filename);
 324                  }
 325  
 326                  $fd = fopen($filename, "r");
 327                  $contents = fread($fd, filesize($filename));
 328  
 329                  $this->mimeOut = "--" . $mime_boundary . "\n";
 330                  $this->mimeOut .= "Content-Type: " . $mimetype . ";\n\tname=\"$szFilenameToDisplay\"\n";
 331                  $this->mimeOut .= "Content-Transfer-Encoding: quoted-printable\n";
 332                  $this->mimeOut .= "Content-Disposition: attachment;\n\tfilename=\"$szFilenameToDisplay\"\n\n";
 333  
 334                  if ( $mimetype == "message/rfc822" )
 335                  {
 336                          $this->mimeOut .= "From: ".$szFromAddress."\n";
 337                          $this->mimeOut .= "To: ".$this->emailAddress."\n";
 338                          $this->mimeOut .= "Date: ".date("D, d M Y H:i:s") . " UT\n";
 339                          $this->mimeOut .= "Reply-To:".$szFromAddress."\n";
 340                          $this->mimeOut .= "Subject: ".$this->mailSubject."\n";
 341                          $this->mimeOut .= "X-Mailer: PHP/".phpversion()."\n";
 342                          $this->mimeOut .= "MIME-Version: 1.0\n";
 343                  }
 344  
 345                  $this->mimeOut .= $contents."\n";
 346                  $this->mimeOut .= "--" . $mime_boundary . "--" . "\n";
 347  
 348                  return $out;
 349                  // added -- to notify email client attachment is done

 350          }
 351  
 352          function getMimeHeaders($filename, $mime_filename="")
 353          {
 354                  $mime_boundary = "--==================_846811060==_";
 355  
 356                  if ($mime_filename)
 357                  {
 358                          $filename = $mime_filename;
 359                  }
 360  
 361                  $out = "MIME-Version: 1.0\n";
 362                  $out .= "Content-Type: multipart/mixed;\n\tboundary=\"$mime_boundary\"\n\n";
 363                  $out .= "This message is in MIME format. Since your mail reader does not understand\n";
 364                  $out .= "this format, some or all of this message may not be legible.";
 365  
 366                  return $out;
 367          }
 368  
 369          //

 370     // Split string by RFC 2045 semantics (76 chars per line, end with \r\n).

 371          //

 372          function myChunkSplit($str)
 373          {
 374                  $stmp = $str;
 375                  $len = strlen($stmp);
 376                  $out = "";
 377  
 378                  while ($len > 0)
 379                  {
 380                          if ($len >= 76)
 381                          {
 382                                  $out .= substr($stmp, 0, 76) . "\r\n";
 383                                  $stmp = substr($stmp, 76);
 384                                  $len = $len - 76;
 385                          }
 386                          else
 387                          {
 388                                  $out .= $stmp . "\r\n";
 389                                  $stmp = "";
 390                                  $len = 0;
 391                          }
 392                  }
 393                  return $out;
 394          }
 395  
 396          //

 397     // Split the specified file up into a string and return it

 398          //

 399          function encode_file($sourcefile)
 400          {
 401                  if (is_readable(phpbb_realpath($sourcefile)))
 402                  {
 403                          $fd = fopen($sourcefile, "r");
 404                          $contents = fread($fd, filesize($sourcefile));
 405                $encoded = $this->myChunkSplit(base64_encode($contents));
 406                fclose($fd);
 407                  }
 408  
 409                  return $encoded;
 410          }
 411  
 412  } // class emailer

 413  
 414  ?>