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   1  <?php
   2  //
   3  // +----------------------------------------------------------------------+
   4  // | PHP Version 4                                                        |
   5  // +----------------------------------------------------------------------+
   6  // | Copyright (c) 1997-2003 The PHP Group                                |
   7  // +----------------------------------------------------------------------+
   8  // | This source file is subject to version 2.02 of the PHP license,      |
   9  // | that is bundled with this package in the file LICENSE, and is        |
  10  // | available at through the world-wide-web at                           |
  11  // | http://www.php.net/license/2_02.txt.                                 |
  12  // | If you did not receive a copy of the PHP license and are unable to   |
  13  // | obtain it through the world-wide-web, please send a note to          |
  14  // | license@php.net so we can mail you a copy immediately.               |
  15  // +----------------------------------------------------------------------+
  16  // | Author: Chuck Hagenbuch <chuck@horde.org>                            |
  17  // +----------------------------------------------------------------------+
  18  //
  19  // $Id: Mail.php,v 1.9 2004/09/03 20:32:50 chagenbu Exp $
  20  
  21  require_once  'PEAR.php';
  22  
  23  /**
  24   * PEAR's Mail:: interface. Defines the interface for implementing
  25   * mailers under the PEAR hierarchy, and provides supporting functions
  26   * useful in multiple mailer backends.
  27   *
  28   * @access public
  29   * @version $Revision: 1.9 $
  30   * @package Mail
  31   */
  32  class Mail
  33  {
  34      /**
  35       * Line terminator used for separating header lines.
  36       * @var string
  37       */
  38      var $sep = "\r\n";
  39  
  40      /**
  41       * Provides an interface for generating Mail:: objects of various
  42       * types
  43       *
  44       * @param string $driver The kind of Mail:: object to instantiate.
  45       * @param array  $params The parameters to pass to the Mail:: object.
  46       * @return object Mail a instance of the driver class or if fails a PEAR Error
  47       * @access public
  48       */
  49      function factory($driver, $params = array())
  50      {
  51          $driver = strtolower($driver);
  52          @include_once 'Mail/' . $driver . '.php';
  53          $class = 'Mail_' . $driver;
  54          if (class_exists($class)) {
  55              return new $class($params);
  56          } else {
  57              return PEAR::raiseError('Unable to find class for driver ' . $driver);
  58          }
  59      }
  60  
  61      /**
  62       * Implements Mail::send() function using php's built-in mail()
  63       * command.
  64       *
  65       * @param mixed $recipients Either a comma-seperated list of recipients
  66       *              (RFC822 compliant), or an array of recipients,
  67       *              each RFC822 valid. This may contain recipients not
  68       *              specified in the headers, for Bcc:, resending
  69       *              messages, etc.
  70       *
  71       * @param array $headers The array of headers to send with the mail, in an
  72       *              associative array, where the array key is the
  73       *              header name (ie, 'Subject'), and the array value
  74       *              is the header value (ie, 'test'). The header
  75       *              produced from those values would be 'Subject:
  76       *              test'.
  77       *
  78       * @param string $body The full text of the message body, including any
  79       *               Mime parts, etc.
  80       *
  81       * @return mixed Returns true on success, or a PEAR_Error
  82       *               containing a descriptive error message on
  83       *               failure.
  84       * @access public
  85       * @deprecated use Mail_mail::send instead
  86       */
  87      function send($recipients, $headers, $body)
  88      {
  89          // if we're passed an array of recipients, implode it.
  90          if (is_array($recipients)) {
  91              $recipients = implode(', ', $recipients);
  92          }
  93  
  94          // get the Subject out of the headers array so that we can
  95          // pass it as a seperate argument to mail().
  96          $subject = '';
  97          if (isset($headers['Subject'])) {
  98              $subject = $headers['Subject'];
  99              unset($headers['Subject']);
 100          }
 101  
 102          // flatten the headers out.
 103          list(,$text_headers) = Mail::prepareHeaders($headers);
 104  
 105          return mail($recipients, $subject, $body, $text_headers);
 106  
 107      }
 108  
 109      /**
 110       * Take an array of mail headers and return a string containing
 111       * text usable in sending a message.
 112       *
 113       * @param array $headers The array of headers to prepare, in an associative
 114       *              array, where the array key is the header name (ie,
 115       *              'Subject'), and the array value is the header
 116       *              value (ie, 'test'). The header produced from those
 117       *              values would be 'Subject: test'.
 118       *
 119       * @return mixed Returns false if it encounters a bad address,
 120       *               otherwise returns an array containing two
 121       *               elements: Any From: address found in the headers,
 122       *               and the plain text version of the headers.
 123       * @access private
 124       */
 125      function prepareHeaders($headers)
 126      {
 127          $lines = array();
 128          $from = null;
 129  
 130          foreach ($headers as $key => $value) {
 131              if (strcasecmp($key, 'From') === 0) {
 132                  include_once  'Mail/RFC822.php';
 133                  $parser = &new Mail_RFC822();
 134                  $addresses = $parser->parseAddressList($value, 'localhost', false);
 135                  if (PEAR::isError($addresses)) {
 136                      return $addresses;
 137                  }
 138  
 139                  $from = $addresses[0]->mailbox . '@' . $addresses[0]->host;
 140  
 141                  // Reject envelope From: addresses with spaces.
 142                  if (strstr($from, ' ')) {
 143                      return false;
 144                  }
 145  
 146                  $lines[] = $key . ': ' . $value;
 147              } elseif (strcasecmp($key, 'Received') === 0) {
 148                  // Put Received: headers at the top.  Spam detectors often
 149                  // flag messages with Received: headers after the Subject:
 150                  // as spam.
 151                  array_unshift($lines, $key . ': ' . $value);
 152              } else {
 153                  // If $value is an array (i.e., a list of addresses), convert
 154                  // it to a comma-delimited string of its elements (addresses).
 155                  if (is_array($value)) {
 156                      $value = implode(', ', $value);
 157                  }
 158                  $lines[] = $key . ': ' . $value;
 159              }
 160          }
 161  
 162          return array($from, join($this->sep, $lines) . $this->sep);
 163      }
 164  
 165      /**
 166       * Take a set of recipients and parse them, returning an array of
 167       * bare addresses (forward paths) that can be passed to sendmail
 168       * or an smtp server with the rcpt to: command.
 169       *
 170       * @param mixed Either a comma-seperated list of recipients
 171       *              (RFC822 compliant), or an array of recipients,
 172       *              each RFC822 valid.
 173       *
 174       * @return array An array of forward paths (bare addresses).
 175       * @access private
 176       */
 177      function parseRecipients($recipients)
 178      {
 179          include_once  'Mail/RFC822.php';
 180  
 181          // if we're passed an array, assume addresses are valid and
 182          // implode them before parsing.
 183          if (is_array($recipients)) {
 184              $recipients = implode(', ', $recipients);
 185          }
 186  
 187          // Parse recipients, leaving out all personal info. This is
 188          // for smtp recipients, etc. All relevant personal information
 189          // should already be in the headers.
 190          $addresses = Mail_RFC822::parseAddressList($recipients, 'localhost', false);
 191          $recipients = array();
 192          if (is_array($addresses)) {
 193              foreach ($addresses as $ob) {
 194                  $recipients[] = $ob->mailbox . '@' . $ob->host;
 195              }
 196          }
 197  
 198          return $recipients;
 199      }
 200  
 201  }