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<?php // // +----------------------------------------------------------------------+ // | PHP Version 4 | // +----------------------------------------------------------------------+ // | Copyright (c) 1997-2003 The PHP Group | // +----------------------------------------------------------------------+ // | This source file is subject to version 2.02 of the PHP license, | // | that is bundled with this package in the file LICENSE, and is | // | available at through the world-wide-web at | // | http://www.php.net/license/2_02.txt. | // | If you did not receive a copy of the PHP license and are unable to | // | obtain it through the world-wide-web, please send a note to | // | license@php.net so we can mail you a copy immediately. | // +----------------------------------------------------------------------+ // | Author: Chuck Hagenbuch <chuck@horde.org> | // +----------------------------------------------------------------------+ // // $Id: Mail.php,v 1.17 2006/09/15 03:41:18 jon Exp $
require_once 'PEAR.php';
/** * PEAR's Mail:: interface. Defines the interface for implementing * mailers under the PEAR hierarchy, and provides supporting functions * useful in multiple mailer backends. * * @access public * @version $Revision: 1.17 $ * @package Mail */ class Mail { /** * Line terminator used for separating header lines. * @var string */ var $sep = "\r\n";
/** * Provides an interface for generating Mail:: objects of various * types * * @param string $driver The kind of Mail:: object to instantiate. * @param array $params The parameters to pass to the Mail:: object. * @return object Mail a instance of the driver class or if fails a PEAR Error * @access public */ function &factory($driver, $params = array()) { $driver = strtolower($driver); @include_once 'Mail/' . $driver . '.php'; $class = 'Mail_' . $driver; if (class_exists($class)) { $mailer = new $class($params); return $mailer; } else { return PEAR::raiseError('Unable to find class for driver ' . $driver); } }
/** * Implements Mail::send() function using php's built-in mail() * command. * * @param mixed $recipients Either a comma-seperated list of recipients * (RFC822 compliant), or an array of recipients, * each RFC822 valid. This may contain recipients not * specified in the headers, for Bcc:, resending * messages, etc. * * @param array $headers The array of headers to send with the mail, in an * associative array, where the array key is the * header name (ie, 'Subject'), and the array value * is the header value (ie, 'test'). The header * produced from those values would be 'Subject: * test'. * * @param string $body The full text of the message body, including any * Mime parts, etc. * * @return mixed Returns true on success, or a PEAR_Error * containing a descriptive error message on * failure. * @access public * @deprecated use Mail_mail::send instead */ function send($recipients, $headers, $body) { $this->_sanitizeHeaders($headers);
// if we're passed an array of recipients, implode it. if (is_array($recipients)) { $recipients = implode(', ', $recipients); }
// get the Subject out of the headers array so that we can // pass it as a seperate argument to mail(). $subject = ''; if (isset($headers['Subject'])) { $subject = $headers['Subject']; unset($headers['Subject']); }
// flatten the headers out. list(,$text_headers) = Mail::prepareHeaders($headers);
return mail($recipients, $subject, $body, $text_headers);
}
/** * Sanitize an array of mail headers by removing any additional header * strings present in a legitimate header's value. The goal of this * filter is to prevent mail injection attacks. * * @param array $headers The associative array of headers to sanitize. * * @access private */ function _sanitizeHeaders(&$headers) { foreach ($headers as $key => $value) { $headers[$key] = preg_replace('=((<CR>|<LF>|0x0A/%0A|0x0D/%0D|\\n|\\r)\S).*=i', null, $value); } }
/** * Take an array of mail headers and return a string containing * text usable in sending a message. * * @param array $headers The array of headers to prepare, in an associative * array, where the array key is the header name (ie, * 'Subject'), and the array value is the header * value (ie, 'test'). The header produced from those * values would be 'Subject: test'. * * @return mixed Returns false if it encounters a bad address, * otherwise returns an array containing two * elements: Any From: address found in the headers, * and the plain text version of the headers. * @access private */ function prepareHeaders($headers) { $lines = array(); $from = null;
foreach ($headers as $key => $value) { if (strcasecmp($key, 'From') === 0) { include_once 'Mail/RFC822.php'; $parser = &new Mail_RFC822(); $addresses = $parser->parseAddressList($value, 'localhost', false); if (PEAR::isError($addresses)) { return $addresses; }
$from = $addresses[0]->mailbox . '@' . $addresses[0]->host;
// Reject envelope From: addresses with spaces. if (strstr($from, ' ')) { return false; }
$lines[] = $key . ': ' . $value; } elseif (strcasecmp($key, 'Received') === 0) { $received = array(); if (is_array($value)) { foreach ($value as $line) { $received[] = $key . ': ' . $line; } } else { $received[] = $key . ': ' . $value; } // Put Received: headers at the top. Spam detectors often // flag messages with Received: headers after the Subject: // as spam. $lines = array_merge($received, $lines); } else { // If $value is an array (i.e., a list of addresses), convert // it to a comma-delimited string of its elements (addresses). if (is_array($value)) { $value = implode(', ', $value); } $lines[] = $key . ': ' . $value; } }
return array($from, join($this->sep, $lines)); }
/** * Take a set of recipients and parse them, returning an array of * bare addresses (forward paths) that can be passed to sendmail * or an smtp server with the rcpt to: command. * * @param mixed Either a comma-seperated list of recipients * (RFC822 compliant), or an array of recipients, * each RFC822 valid. * * @return mixed An array of forward paths (bare addresses) or a PEAR_Error * object if the address list could not be parsed. * @access private */ function parseRecipients($recipients) { include_once 'Mail/RFC822.php';
// if we're passed an array, assume addresses are valid and // implode them before parsing. if (is_array($recipients)) { $recipients = implode(', ', $recipients); }
// Parse recipients, leaving out all personal info. This is // for smtp recipients, etc. All relevant personal information // should already be in the headers. $addresses = Mail_RFC822::parseAddressList($recipients, 'localhost', false);
// If parseAddressList() returned a PEAR_Error object, just return it. if (PEAR::isError($addresses)) { return $addresses; }
$recipients = array(); if (is_array($addresses)) { foreach ($addresses as $ob) { $recipients[] = $ob->mailbox . '@' . $ob->host; } }
return $recipients; }
}
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