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-<?PHP
-/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
-
-/**
- * SMTP MX
- *
- * SMTP MX implementation of the PEAR Mail interface. Requires the Net_SMTP class.
- *
- * PHP versions 4 and 5
- *
- * LICENSE: This source file is subject to version 3.0 of the PHP license
- * that is available through the world-wide-web at the following URI:
- * http://www.php.net/license/3_0.txt. If you did not receive a copy of
- * the PHP License and are unable to obtain it through the web, please
- * send a note to license@php.net so we can mail you a copy immediately.
- *
- * @category Mail
- * @package Mail_smtpmx
- * @author gERD Schaufelberger <gerd@php-tools.net>
- * @copyright 1997-2005 The PHP Group
- * @license http://www.php.net/license/3_0.txt PHP License 3.0
- * @version CVS: $Id: smtpmx.php,v 1.2 2007/10/06 17:00:00 chagenbu Exp $
- * @see Mail
- */
-
-require_once 'Net/SMTP.php';
-
-/**
- * SMTP MX implementation of the PEAR Mail interface. Requires the Net_SMTP class.
- *
- *
- * @access public
- * @author gERD Schaufelberger <gerd@php-tools.net>
- * @package Mail
- * @version $Revision: 1.2 $
- */
-class Mail_smtpmx extends Mail {
-
- /**
- * SMTP connection object.
- *
- * @var object
- * @access private
- */
- var $_smtp = null;
-
- /**
- * The port the SMTP server is on.
- * @var integer
- * @see getservicebyname()
- */
- var $port = 25;
-
- /**
- * Hostname or domain that will be sent to the remote SMTP server in the
- * HELO / EHLO message.
- *
- * @var string
- * @see posix_uname()
- */
- var $mailname = 'localhost';
-
- /**
- * SMTP connection timeout value. NULL indicates no timeout.
- *
- * @var integer
- */
- var $timeout = 10;
-
- /**
- * use either PEAR:Net_DNS or getmxrr
- *
- * @var boolean
- */
- var $withNetDns = true;
-
- /**
- * PEAR:Net_DNS_Resolver
- *
- * @var object
- */
- var $resolver;
-
- /**
- * Whether to use VERP or not. If not a boolean, the string value
- * will be used as the VERP separators.
- *
- * @var mixed boolean or string
- */
- var $verp = false;
-
- /**
- * Whether to use VRFY or not.
- *
- * @var boolean $vrfy
- */
- var $vrfy = false;
-
- /**
- * Switch to test mode - don't send emails for real
- *
- * @var boolean $debug
- */
- var $test = false;
-
- /**
- * Turn on Net_SMTP debugging?
- *
- * @var boolean $peardebug
- */
- var $debug = false;
-
- /**
- * internal error codes
- *
- * translate internal error identifier to PEAR-Error codes and human
- * readable messages.
- *
- * @var boolean $debug
- * @todo as I need unique error-codes to identify what exactly went wrond
- * I did not use intergers as it should be. Instead I added a "namespace"
- * for each code. This avoids conflicts with error codes from different
- * classes. How can I use unique error codes and stay conform with PEAR?
- */
- var $errorCode = array(
- 'not_connected' => array(
- 'code' => 1,
- 'msg' => 'Could not connect to any mail server ({HOST}) at port {PORT} to send mail to {RCPT}.'
- ),
- 'failed_vrfy_rcpt' => array(
- 'code' => 2,
- 'msg' => 'Recipient "{RCPT}" could not be veryfied.'
- ),
- 'failed_set_from' => array(
- 'code' => 3,
- 'msg' => 'Failed to set sender: {FROM}.'
- ),
- 'failed_set_rcpt' => array(
- 'code' => 4,
- 'msg' => 'Failed to set recipient: {RCPT}.'
- ),
- 'failed_send_data' => array(
- 'code' => 5,
- 'msg' => 'Failed to send mail to: {RCPT}.'
- ),
- 'no_from' => array(
- 'code' => 5,
- 'msg' => 'No from address has be provided.'
- ),
- 'send_data' => array(
- 'code' => 7,
- 'msg' => 'Failed to create Net_SMTP object.'
- ),
- 'no_mx' => array(
- 'code' => 8,
- 'msg' => 'No MX-record for {RCPT} found.'
- ),
- 'no_resolver' => array(
- 'code' => 9,
- 'msg' => 'Could not start resolver! Install PEAR:Net_DNS or switch off "netdns"'
- ),
- 'failed_rset' => array(
- 'code' => 10,
- 'msg' => 'RSET command failed, SMTP-connection corrupt.'
- ),
- );
-
- /**
- * Constructor.
- *
- * Instantiates a new Mail_smtp:: object based on the parameters
- * passed in. It looks for the following parameters:
- * mailname The name of the local mail system (a valid hostname which matches the reverse lookup)
- * port smtp-port - the default comes from getservicebyname() and should work fine
- * timeout The SMTP connection timeout. Defaults to 30 seconds.
- * vrfy Whether to use VRFY or not. Defaults to false.
- * verp Whether to use VERP or not. Defaults to false.
- * test Activate test mode? Defaults to false.
- * debug Activate SMTP and Net_DNS debug mode? Defaults to false.
- * netdns whether to use PEAR:Net_DNS or the PHP build in function getmxrr, default is true
- *
- * If a parameter is present in the $params array, it replaces the
- * default.
- *
- * @access public
- * @param array Hash containing any parameters different from the
- * defaults.
- * @see _Mail_smtpmx()
- */
- function __construct($params)
- {
- if (isset($params['mailname'])) {
- $this->mailname = $params['mailname'];
- } else {
- // try to find a valid mailname
- if (function_exists('posix_uname')) {
- $uname = posix_uname();
- $this->mailname = $uname['nodename'];
- }
- }
-
- // port number
- if (isset($params['port'])) {
- $this->_port = $params['port'];
- } else {
- $this->_port = getservbyname('smtp', 'tcp');
- }
-
- if (isset($params['timeout'])) $this->timeout = $params['timeout'];
- if (isset($params['verp'])) $this->verp = $params['verp'];
- if (isset($params['test'])) $this->test = $params['test'];
- if (isset($params['peardebug'])) $this->test = $params['peardebug'];
- if (isset($params['netdns'])) $this->withNetDns = $params['netdns'];
- }
-
- /**
- * Constructor wrapper for PHP4
- *
- * @access public
- * @param array Hash containing any parameters different from the defaults
- * @see __construct()
- */
- function Mail_smtpmx($params)
- {
- $this->__construct($params);
- register_shutdown_function(array(&$this, '__destruct'));
- }
-
- /**
- * Destructor implementation to ensure that we disconnect from any
- * potentially-alive persistent SMTP connections.
- */
- function __destruct()
- {
- if (is_object($this->_smtp)) {
- $this->_smtp->disconnect();
- $this->_smtp = null;
- }
- }
-
- /**
- * Implements Mail::send() function using SMTP direct delivery
- *
- * @access public
- * @param mixed $recipients in RFC822 style or array
- * @param array $headers The array of headers to send with the mail.
- * @param string $body The full text of the message body,
- * @return mixed Returns true on success, or a PEAR_Error
- */
- function send($recipients, $headers, $body)
- {
- if (!is_array($headers)) {
- return PEAR::raiseError('$headers must be an array');
- }
-
- $result = $this->_sanitizeHeaders($headers);
- if (is_a($result, 'PEAR_Error')) {
- return $result;
- }
-
- // Prepare headers
- $headerElements = $this->prepareHeaders($headers);
- if (is_a($headerElements, 'PEAR_Error')) {
- return $headerElements;
- }
- list($from, $textHeaders) = $headerElements;
-
- // use 'Return-Path' if possible
- if (!empty($headers['Return-Path'])) {
- $from = $headers['Return-Path'];
- }
- if (!isset($from)) {
- return $this->_raiseError('no_from');
- }
-
- // Prepare recipients
- $recipients = $this->parseRecipients($recipients);
- if (is_a($recipients, 'PEAR_Error')) {
- return $recipients;
- }
-
- foreach ($recipients as $rcpt) {
- list($user, $host) = explode('@', $rcpt);
-
- $mx = $this->_getMx($host);
- if (is_a($mx, 'PEAR_Error')) {
- return $mx;
- }
-
- if (empty($mx)) {
- $info = array('rcpt' => $rcpt);
- return $this->_raiseError('no_mx', $info);
- }
-
- $connected = false;
- foreach ($mx as $mserver => $mpriority) {
- $this->_smtp = new Net_SMTP($mserver, $this->port, $this->mailname);
-
- // configure the SMTP connection.
- if ($this->debug) {
- $this->_smtp->setDebug(true);
- }
-
- // attempt to connect to the configured SMTP server.
- $res = $this->_smtp->connect($this->timeout);
- if (is_a($res, 'PEAR_Error')) {
- $this->_smtp = null;
- continue;
- }
-
- // connection established
- if ($res) {
- $connected = true;
- break;
- }
- }
-
- if (!$connected) {
- $info = array(
- 'host' => implode(', ', array_keys($mx)),
- 'port' => $this->port,
- 'rcpt' => $rcpt,
- );
- return $this->_raiseError('not_connected', $info);
- }
-
- // Verify recipient
- if ($this->vrfy) {
- $res = $this->_smtp->vrfy($rcpt);
- if (is_a($res, 'PEAR_Error')) {
- $info = array('rcpt' => $rcpt);
- return $this->_raiseError('failed_vrfy_rcpt', $info);
- }
- }
-
- // mail from:
- $args['verp'] = $this->verp;
- $res = $this->_smtp->mailFrom($from, $args);
- if (is_a($res, 'PEAR_Error')) {
- $info = array('from' => $from);
- return $this->_raiseError('failed_set_from', $info);
- }
-
- // rcpt to:
- $res = $this->_smtp->rcptTo($rcpt);
- if (is_a($res, 'PEAR_Error')) {
- $info = array('rcpt' => $rcpt);
- return $this->_raiseError('failed_set_rcpt', $info);
- }
-
- // Don't send anything in test mode
- if ($this->test) {
- $result = $this->_smtp->rset();
- $res = $this->_smtp->rset();
- if (is_a($res, 'PEAR_Error')) {
- return $this->_raiseError('failed_rset');
- }
-
- $this->_smtp->disconnect();
- $this->_smtp = null;
- return true;
- }
-
- // Send data
- $res = $this->_smtp->data("$textHeaders\r\n$body");
- if (is_a($res, 'PEAR_Error')) {
- $info = array('rcpt' => $rcpt);
- return $this->_raiseError('failed_send_data', $info);
- }
-
- $this->_smtp->disconnect();
- $this->_smtp = null;
- }
-
- return true;
- }
-
- /**
- * Recieve mx rexords for a spciefied host
- *
- * The MX records
- *
- * @access private
- * @param string $host mail host
- * @return mixed sorted
- */
- function _getMx($host)
- {
- $mx = array();
-
- if ($this->withNetDns) {
- $res = $this->_loadNetDns();
- if (is_a($res, 'PEAR_Error')) {
- return $res;
- }
-
- $response = $this->resolver->query($host, 'MX');
- if (!$response) {
- return false;
- }
-
- foreach ($response->answer as $rr) {
- if ($rr->type == 'MX') {
- $mx[$rr->exchange] = $rr->preference;
- }
- }
- } else {
- $mxHost = array();
- $mxWeight = array();
-
- if (!getmxrr($host, $mxHost, $mxWeight)) {
- return false;
- }
- for ($i = 0; $i < count($mxHost); ++$i) {
- $mx[$mxHost[$i]] = $mxWeight[$i];
- }
- }
-
- asort($mx);
- return $mx;
- }
-
- /**
- * initialize PEAR:Net_DNS_Resolver
- *
- * @access private
- * @return boolean true on success
- */
- function _loadNetDns()
- {
- if (is_object($this->resolver)) {
- return true;
- }
-
- if (!include_once 'Net/DNS.php') {
- return $this->_raiseError('no_resolver');
- }
-
- $this->resolver = new Net_DNS_Resolver();
- if ($this->debug) {
- $this->resolver->test = 1;
- }
-
- return true;
- }
-
- /**
- * raise standardized error
- *
- * include additional information in error message
- *
- * @access private
- * @param string $id maps error ids to codes and message
- * @param array $info optional information in associative array
- * @see _errorCode
- */
- function _raiseError($id, $info = array())
- {
- $code = $this->errorCode[$id]['code'];
- $msg = $this->errorCode[$id]['msg'];
-
- // include info to messages
- if (!empty($info)) {
- $search = array();
- $replace = array();
-
- foreach ($info as $key => $value) {
- array_push($search, '{' . strtoupper($key) . '}');
- array_push($replace, $value);
- }
-
- $msg = str_replace($search, $replace, $msg);
- }
-
- return PEAR::raiseError($msg, $code);
- }
-
-}
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