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authordavehauenstein <davehauenstein@d4e419ec-0920-11de-bbfd-a7c1bc4c261e>2009-04-15 22:06:42 +0000
committerdavehauenstein <davehauenstein@d4e419ec-0920-11de-bbfd-a7c1bc4c261e>2009-04-15 22:06:42 +0000
commitc53d8d026021f97075fb2f4940ba22793c38fb6e (patch)
treec5d7865bc0fd226ecc7525d7de8a1d0b0c5c89fd /lib/Zend/Mail/Protocol/Smtp.php
parenta414fcee8e7dc733443c6a971162d0dd9d0e723f (diff)
downloadreadability-simple-c53d8d026021f97075fb2f4940ba22793c38fb6e.tar.bz2
readability-simple-c53d8d026021f97075fb2f4940ba22793c38fb6e.zip
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+<?php
+
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category Zend
+ * @package Zend_Mail
+ * @subpackage Protocol
+ * @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ * @version $Id: Smtp.php 11196 2008-09-02 00:56:25Z yoshida@zend.co.jp $
+ */
+
+
+/**
+ * @see Zend_Mime
+ */
+require_once 'Zend/Mime.php';
+
+
+/**
+ * @see Zend_Mail_Protocol_Abstract
+ */
+require_once 'Zend/Mail/Protocol/Abstract.php';
+
+
+/**
+ * Smtp implementation of Zend_Mail_Protocol_Abstract
+ *
+ * Minimum implementation according to RFC2821: EHLO, MAIL FROM, RCPT TO, DATA, RSET, NOOP, QUIT
+ *
+ * @category Zend
+ * @package Zend_Mail
+ * @subpackage Protocol
+ * @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ */
+class Zend_Mail_Protocol_Smtp extends Zend_Mail_Protocol_Abstract
+{
+ /**
+ * The transport method for the socket
+ *
+ * @var string
+ */
+ protected $_transport = 'tcp';
+
+
+ /**
+ * Indicates that a session is requested to be secure
+ *
+ * @var string
+ */
+ protected $_secure;
+
+
+ /**
+ * Indicates an smtp session has been started by the HELO command
+ *
+ * @var boolean
+ */
+ protected $_sess = false;
+
+
+ /**
+ * Indicates the HELO command has been issues
+ *
+ * @var unknown_type
+ */
+ protected $_helo = false;
+
+
+ /**
+ * Indicates an smtp AUTH has been issued and authenticated
+ *
+ * @var unknown_type
+ */
+ protected $_auth = false;
+
+
+ /**
+ * Indicates a MAIL command has been issued
+ *
+ * @var unknown_type
+ */
+ protected $_mail = false;
+
+
+ /**
+ * Indicates one or more RCTP commands have been issued
+ *
+ * @var unknown_type
+ */
+ protected $_rcpt = false;
+
+
+ /**
+ * Indicates that DATA has been issued and sent
+ *
+ * @var unknown_type
+ */
+ protected $_data = null;
+
+
+ /**
+ * Constructor.
+ *
+ * @param string $host
+ * @param integer $port
+ * @param array $config
+ * @return void
+ * @throws Zend_Mail_Protocol_Exception
+ */
+ public function __construct($host = '127.0.0.1', $port = null, array $config = array())
+ {
+ if (isset($config['ssl'])) {
+ switch (strtolower($config['ssl'])) {
+ case 'tls':
+ $this->_secure = 'tls';
+ break;
+
+ case 'ssl':
+ $this->_transport = 'ssl';
+ $this->_secure = 'ssl';
+ if ($port == null) {
+ $port = 465;
+ }
+ break;
+
+ default:
+ /**
+ * @see Zend_Mail_Protocol_Exception
+ */
+ require_once 'Zend/Mail/Protocol/Exception.php';
+ throw new Zend_Mail_Protocol_Exception($config['ssl'] . ' is unsupported SSL type');
+ break;
+ }
+ }
+
+ // If no port has been specified then check the master PHP ini file. Defaults to 25 if the ini setting is null.
+ if ($port == null) {
+ if (($port = ini_get('smtp_port')) == '') {
+ $port = 25;
+ }
+ }
+
+ parent::__construct($host, $port);
+ }
+
+
+ /**
+ * Connect to the server with the parameters given in the constructor.
+ *
+ * @return boolean
+ */
+ public function connect()
+ {
+ return $this->_connect($this->_transport . '://' . $this->_host . ':'. $this->_port);
+ }
+
+
+ /**
+ * Initiate HELO/EHLO sequence and set flag to indicate valid smtp session
+ *
+ * @param string $host The client hostname or IP address (default: 127.0.0.1)
+ * @throws Zend_Mail_Protocol_Exception
+ * @return void
+ */
+ public function helo($host = '127.0.0.1')
+ {
+ // Respect RFC 2821 and disallow HELO attempts if session is already initiated.
+ if ($this->_sess === true) {
+ /**
+ * @see Zend_Mail_Protocol_Exception
+ */
+ require_once 'Zend/Mail/Protocol/Exception.php';
+ throw new Zend_Mail_Protocol_Exception('Cannot issue HELO to existing session');
+ }
+
+ // Validate client hostname
+ if (!$this->_validHost->isValid($host)) {
+ /**
+ * @see Zend_Mail_Protocol_Exception
+ */
+ require_once 'Zend/Mail/Protocol/Exception.php';
+ throw new Zend_Mail_Protocol_Exception(join(', ', $this->_validHost->getMessages()));
+ }
+
+ // Initiate helo sequence
+ $this->_expect(220, 300); // Timeout set for 5 minutes as per RFC 2821 4.5.3.2
+ $this->_ehlo($host);
+
+ // If a TLS session is required, commence negotiation
+ if ($this->_secure == 'tls') {
+ $this->_send('STARTTLS');
+ $this->_expect(220, 180);
+ if (!stream_socket_enable_crypto($this->_socket, true, STREAM_CRYPTO_METHOD_TLS_CLIENT)) {
+ /**
+ * @see Zend_Mail_Protocol_Exception
+ */
+ require_once 'Zend/Mail/Protocol/Exception.php';
+ throw new Zend_Mail_Protocol_Exception('Unable to connect via TLS');
+ }
+ $this->_ehlo($host);
+ }
+
+ $this->_startSession();
+ $this->auth();
+ }
+
+
+ /**
+ * Send EHLO or HELO depending on capabilities of smtp host
+ *
+ * @param string $host The client hostname or IP address (default: 127.0.0.1)
+ * @throws Zend_Mail_Protocol_Exception
+ * @return void
+ */
+ protected function _ehlo($host)
+ {
+ // Support for older, less-compliant remote servers. Tries multiple attempts of EHLO or HELO.
+ try {
+ $this->_send('EHLO ' . $host);
+ $this->_expect(250, 300); // Timeout set for 5 minutes as per RFC 2821 4.5.3.2
+ } catch (Zend_Mail_Protocol_Exception $e) {
+ $this->_send('HELO ' . $host);
+ $this->_expect(250, 300); // Timeout set for 5 minutes as per RFC 2821 4.5.3.2
+ } catch (Zend_Mail_Protocol_Exception $e) {
+ throw $e;
+ }
+ }
+
+
+ /**
+ * Issues MAIL command
+ *
+ * @param string $from Sender mailbox
+ * @throws Zend_Mail_Protocol_Exception
+ * @return void
+ */
+ public function mail($from)
+ {
+ if ($this->_sess !== true) {
+ /**
+ * @see Zend_Mail_Protocol_Exception
+ */
+ require_once 'Zend/Mail/Protocol/Exception.php';
+ throw new Zend_Mail_Protocol_Exception('A valid session has not been started');
+ }
+
+ $this->_send('MAIL FROM:<' . $from . '>');
+ $this->_expect(250, 300); // Timeout set for 5 minutes as per RFC 2821 4.5.3.2
+
+ // Set mail to true, clear recipients and any existing data flags as per 4.1.1.2 of RFC 2821
+ $this->_mail = true;
+ $this->_rcpt = false;
+ $this->_data = false;
+ }
+
+
+ /**
+ * Issues RCPT command
+ *
+ * @param string $to Receiver(s) mailbox
+ * @throws Zend_Mail_Protocol_Exception
+ * @return void
+ */
+ public function rcpt($to)
+ {
+ if ($this->_mail !== true) {
+ /**
+ * @see Zend_Mail_Protocol_Exception
+ */
+ require_once 'Zend/Mail/Protocol/Exception.php';
+ throw new Zend_Mail_Protocol_Exception('No sender reverse path has been supplied');
+ }
+
+ // Set rcpt to true, as per 4.1.1.3 of RFC 2821
+ $this->_send('RCPT TO:<' . $to . '>');
+ $this->_expect(array(250, 251), 300); // Timeout set for 5 minutes as per RFC 2821 4.5.3.2
+ $this->_rcpt = true;
+ }
+
+
+ /**
+ * Issues DATA command
+ *
+ * @param string $data
+ * @throws Zend_Mail_Protocol_Exception
+ * @return void
+ */
+ public function data($data)
+ {
+ // Ensure recipients have been set
+ if ($this->_rcpt !== true) {
+ /**
+ * @see Zend_Mail_Protocol_Exception
+ */
+ require_once 'Zend/Mail/Protocol/Exception.php';
+ throw new Zend_Mail_Protocol_Exception('No recipient forward path has been supplied');
+ }
+
+ $this->_send('DATA');
+ $this->_expect(354, 120); // Timeout set for 2 minutes as per RFC 2821 4.5.3.2
+
+ foreach (explode(Zend_Mime::LINEEND, $data) as $line) {
+ if (strpos($line, '.') === 0) {
+ // Escape lines prefixed with a '.'
+ $line = '.' . $line;
+ }
+ $this->_send($line);
+ }
+
+ $this->_send('.');
+ $this->_expect(250, 600); // Timeout set for 10 minutes as per RFC 2821 4.5.3.2
+ $this->_data = true;
+ }
+
+
+ /**
+ * Issues the RSET command end validates answer
+ *
+ * Can be used to restore a clean smtp communication state when a transaction has been cancelled or commencing a new transaction.
+ *
+ * @return void
+ */
+ public function rset()
+ {
+ $this->_send('RSET');
+ // MS ESMTP doesn't follow RFC, see [ZF-1377]
+ $this->_expect(array(250, 220));
+
+ $this->_mail = false;
+ $this->_rcpt = false;
+ $this->_data = false;
+ }
+
+
+ /**
+ * Issues the NOOP command end validates answer
+ *
+ * Not used by Zend_Mail, could be used to keep a connection alive or check if it is still open.
+ *
+ * @return void
+ */
+ public function noop()
+ {
+ $this->_send('NOOP');
+ $this->_expect(250, 300); // Timeout set for 5 minutes as per RFC 2821 4.5.3.2
+ }
+
+
+ /**
+ * Issues the VRFY command end validates answer
+ *
+ * Not used by Zend_Mail.
+ *
+ * @param string $user User Name or eMail to verify
+ * @return void
+ */
+ public function vrfy($user)
+ {
+ $this->_send('VRFY ' . $user);
+ $this->_expect(array(250, 251, 252), 300); // Timeout set for 5 minutes as per RFC 2821 4.5.3.2
+ }
+
+
+ /**
+ * Issues the QUIT command and clears the current session
+ *
+ * @return void
+ */
+ public function quit()
+ {
+ if ($this->_sess) {
+ $this->_send('QUIT');
+ $this->_expect(221, 300); // Timeout set for 5 minutes as per RFC 2821 4.5.3.2
+ $this->_stopSession();
+ }
+ }
+
+
+ /**
+ * Default authentication method
+ *
+ * This default method is implemented by AUTH adapters to properly authenticate to a remote host.
+ *
+ * @throws Zend_Mail_Protocol_Exception
+ * @return void
+ */
+ public function auth()
+ {
+ if ($this->_auth === true) {
+ /**
+ * @see Zend_Mail_Protocol_Exception
+ */
+ require_once 'Zend/Mail/Protocol/Exception.php';
+ throw new Zend_Mail_Protocol_Exception('Already authenticated for this session');
+ }
+ }
+
+
+ /**
+ * Closes connection
+ *
+ * @return void
+ */
+ public function disconnect()
+ {
+ $this->_disconnect();
+ }
+
+
+ /**
+ * Start mail session
+ *
+ * @return void
+ */
+ protected function _startSession()
+ {
+ $this->_sess = true;
+ }
+
+
+ /**
+ * Stop mail session
+ *
+ * @return void
+ */
+ protected function _stopSession()
+ {
+ $this->_sess = false;
+ }
+}