462 lines
15 KiB
PHP
462 lines
15 KiB
PHP
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<?php
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/**
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* SMTP implementation of the PEAR Mail interface. Requires the Net_SMTP class.
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*
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* PHP version 5
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*
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* LICENSE:
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*
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* Copyright (c) 2010-2017, Chuck Hagenbuch & Jon Parise
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* @category HTTP
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* @package HTTP_Request
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* @author Jon Parise <jon@php.net>
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* @author Chuck Hagenbuch <chuck@horde.org>
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* @copyright 2010-2017 Chuck Hagenbuch
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* @license http://opensource.org/licenses/BSD-3-Clause New BSD License
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* @version CVS: $Id$
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* @link http://pear.php.net/package/Mail/
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*/
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/** Error: Failed to create a Net_SMTP object */
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define('PEAR_MAIL_SMTP_ERROR_CREATE', 10000);
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/** Error: Failed to connect to SMTP server */
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define('PEAR_MAIL_SMTP_ERROR_CONNECT', 10001);
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/** Error: SMTP authentication failure */
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define('PEAR_MAIL_SMTP_ERROR_AUTH', 10002);
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/** Error: No From: address has been provided */
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define('PEAR_MAIL_SMTP_ERROR_FROM', 10003);
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/** Error: Failed to set sender */
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define('PEAR_MAIL_SMTP_ERROR_SENDER', 10004);
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/** Error: Failed to add recipient */
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define('PEAR_MAIL_SMTP_ERROR_RECIPIENT', 10005);
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/** Error: Failed to send data */
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define('PEAR_MAIL_SMTP_ERROR_DATA', 10006);
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/**
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* SMTP implementation of the PEAR Mail interface. Requires the Net_SMTP class.
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* @access public
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* @package Mail
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* @version $Revision$
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*/
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class Mail_smtp extends Mail {
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/**
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* SMTP connection object.
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*
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* @var object
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* @access private
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*/
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var $_smtp = null;
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/**
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* The list of service extension parameters to pass to the Net_SMTP
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* mailFrom() command.
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*
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* @var array
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*/
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var $_extparams = array();
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/**
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* The SMTP host to connect to.
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*
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* @var string
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*/
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var $host = 'localhost';
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/**
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* The port the SMTP server is on.
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*
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* @var integer
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*/
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var $port = 25;
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/**
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* Should SMTP authentication be used?
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*
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* This value may be set to true, false or the name of a specific
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* authentication method.
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*
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* If the value is set to true, the Net_SMTP package will attempt to use
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* the best authentication method advertised by the remote SMTP server.
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*
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* @var mixed
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*/
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var $auth = false;
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/**
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* The username to use if the SMTP server requires authentication.
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*
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* @var string
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*/
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var $username = '';
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/**
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* The password to use if the SMTP server requires authentication.
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*
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* @var string
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*/
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var $password = '';
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/**
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* Hostname or domain that will be sent to the remote SMTP server in the
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* HELO / EHLO message.
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*
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* @var string
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*/
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var $localhost = 'localhost';
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/**
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* SMTP connection timeout value. NULL indicates no timeout.
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*
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* @var integer
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*/
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var $timeout = null;
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/**
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* Turn on Net_SMTP debugging?
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*
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* @var boolean $debug
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*/
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var $debug = false;
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/**
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* Indicates whether or not the SMTP connection should persist over
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* multiple calls to the send() method.
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*
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* @var boolean
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*/
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var $persist = false;
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/**
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* Use SMTP command pipelining (specified in RFC 2920) if the SMTP server
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* supports it. This speeds up delivery over high-latency connections. By
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* default, use the default value supplied by Net_SMTP.
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*
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* @var boolean
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*/
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var $pipelining;
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/**
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* The list of socket options
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*
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* @var array
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*/
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var $socket_options = array();
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/**
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* Constructor.
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*
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* Instantiates a new Mail_smtp:: object based on the parameters
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* passed in. It looks for the following parameters:
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* host The server to connect to. Defaults to localhost.
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* port The port to connect to. Defaults to 25.
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* auth SMTP authentication. Defaults to none.
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* username The username to use for SMTP auth. No default.
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* password The password to use for SMTP auth. No default.
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* localhost The local hostname / domain. Defaults to localhost.
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* timeout The SMTP connection timeout. Defaults to none.
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* verp Whether to use VERP or not. Defaults to false.
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* DEPRECATED as of 1.2.0 (use setMailParams()).
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* debug Activate SMTP debug mode? Defaults to false.
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* persist Should the SMTP connection persist?
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* pipelining Use SMTP command pipelining
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*
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* If a parameter is present in the $params array, it replaces the
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* default.
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*
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* @param array Hash containing any parameters different from the
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* defaults.
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*/
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public function __construct($params)
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{
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if (isset($params['host'])) $this->host = $params['host'];
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if (isset($params['port'])) $this->port = $params['port'];
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if (isset($params['auth'])) $this->auth = $params['auth'];
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if (isset($params['username'])) $this->username = $params['username'];
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if (isset($params['password'])) $this->password = $params['password'];
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if (isset($params['localhost'])) $this->localhost = $params['localhost'];
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if (isset($params['timeout'])) $this->timeout = $params['timeout'];
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if (isset($params['debug'])) $this->debug = (bool)$params['debug'];
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if (isset($params['persist'])) $this->persist = (bool)$params['persist'];
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if (isset($params['pipelining'])) $this->pipelining = (bool)$params['pipelining'];
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if (isset($params['socket_options'])) $this->socket_options = $params['socket_options'];
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// Deprecated options
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if (isset($params['verp'])) {
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$this->addServiceExtensionParameter('XVERP', is_bool($params['verp']) ? null : $params['verp']);
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}
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}
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/**
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* Destructor implementation to ensure that we disconnect from any
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* potentially-alive persistent SMTP connections.
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*/
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public function __destruct()
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{
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$this->disconnect();
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}
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/**
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* Implements Mail::send() function using SMTP.
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*
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* @param mixed $recipients Either a comma-seperated list of recipients
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* (RFC822 compliant), or an array of recipients,
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* each RFC822 valid. This may contain recipients not
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* specified in the headers, for Bcc:, resending
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* messages, etc.
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*
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* @param array $headers The array of headers to send with the mail, in an
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* associative array, where the array key is the
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* header name (e.g., 'Subject'), and the array value
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* is the header value (e.g., 'test'). The header
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* produced from those values would be 'Subject:
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* test'.
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*
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* @param string $body The full text of the message body, including any
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* MIME parts, etc.
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*
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* @return mixed Returns true on success, or a PEAR_Error
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* containing a descriptive error message on
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* failure.
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*/
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public function send($recipients, $headers, $body)
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{
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$result = $this->send_or_fail($recipients, $headers, $body);
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/* If persistent connections are disabled, destroy our SMTP object. */
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if ($this->persist === false) {
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$this->disconnect();
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}
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return $result;
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}
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protected function send_or_fail($recipients, $headers, $body)
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{
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/* If we don't already have an SMTP object, create one. */
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$result = $this->getSMTPObject();
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if (PEAR::isError($result)) {
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return $result;
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}
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if (!is_array($headers)) {
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return PEAR::raiseError('$headers must be an array');
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}
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$this->_sanitizeHeaders($headers);
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$headerElements = $this->prepareHeaders($headers);
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if (is_a($headerElements, 'PEAR_Error')) {
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$this->_smtp->rset();
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return $headerElements;
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}
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list($from, $textHeaders) = $headerElements;
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/* Since few MTAs are going to allow this header to be forged
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* unless it's in the MAIL FROM: exchange, we'll use
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* Return-Path instead of From: if it's set. */
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if (!empty($headers['Return-Path'])) {
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$from = $headers['Return-Path'];
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}
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if (!isset($from)) {
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$this->_smtp->rset();
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return PEAR::raiseError('No From: address has been provided',
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PEAR_MAIL_SMTP_ERROR_FROM);
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}
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$params = null;
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if (!empty($this->_extparams)) {
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foreach ($this->_extparams as $key => $val) {
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$params .= ' ' . $key . (is_null($val) ? '' : '=' . $val);
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}
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}
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if (PEAR::isError($res = $this->_smtp->mailFrom($from, ltrim($params)))) {
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$error = $this->_error("Failed to set sender: $from", $res);
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$this->_smtp->rset();
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return PEAR::raiseError($error, PEAR_MAIL_SMTP_ERROR_SENDER);
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}
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$recipients = $this->parseRecipients($recipients);
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if (is_a($recipients, 'PEAR_Error')) {
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$this->_smtp->rset();
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return $recipients;
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}
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foreach ($recipients as $recipient) {
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$res = $this->_smtp->rcptTo($recipient);
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if (is_a($res, 'PEAR_Error')) {
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$error = $this->_error("Failed to add recipient: $recipient", $res);
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$this->_smtp->rset();
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return PEAR::raiseError($error, PEAR_MAIL_SMTP_ERROR_RECIPIENT);
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}
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}
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/* Send the message's headers and the body as SMTP data. */
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$res = $this->_smtp->data($body, $textHeaders);
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list(,$args) = $this->_smtp->getResponse();
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if (preg_match("/ queued as (.*)/", $args, $queued)) {
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$this->queued_as = $queued[1];
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}
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/* we need the greeting; from it we can extract the authorative name of the mail server we've really connected to.
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* ideal if we're connecting to a round-robin of relay servers and need to track which exact one took the email */
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$this->greeting = $this->_smtp->getGreeting();
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if (is_a($res, 'PEAR_Error')) {
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$error = $this->_error('Failed to send data', $res);
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$this->_smtp->rset();
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return PEAR::raiseError($error, PEAR_MAIL_SMTP_ERROR_DATA);
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}
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return true;
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}
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/**
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* Connect to the SMTP server by instantiating a Net_SMTP object.
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*
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* @return mixed Returns a reference to the Net_SMTP object on success, or
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* a PEAR_Error containing a descriptive error message on
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* failure.
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*
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* @since 1.2.0
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*/
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public function getSMTPObject()
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{
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if (is_object($this->_smtp) !== false) {
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return $this->_smtp;
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}
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include_once 'Net/SMTP.php';
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$this->_smtp = new Net_SMTP($this->host,
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$this->port,
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$this->localhost,
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$this->pipelining,
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0,
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$this->socket_options);
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/* If we still don't have an SMTP object at this point, fail. */
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if (is_object($this->_smtp) === false) {
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return PEAR::raiseError('Failed to create a Net_SMTP object',
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PEAR_MAIL_SMTP_ERROR_CREATE);
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}
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/* Configure the SMTP connection. */
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if ($this->debug) {
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|
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$this->_smtp->setDebug(true);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Attempt to connect to the configured SMTP server. */
|
||
|
|
if (PEAR::isError($res = $this->_smtp->connect($this->timeout))) {
|
||
|
|
$error = $this->_error('Failed to connect to ' .
|
||
|
|
$this->host . ':' . $this->port,
|
||
|
|
$res);
|
||
|
|
return PEAR::raiseError($error, PEAR_MAIL_SMTP_ERROR_CONNECT);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Attempt to authenticate if authentication has been enabled. */
|
||
|
|
if ($this->auth) {
|
||
|
|
$method = is_string($this->auth) ? $this->auth : '';
|
||
|
|
|
||
|
|
if (PEAR::isError($res = $this->_smtp->auth($this->username,
|
||
|
|
$this->password,
|
||
|
|
$method))) {
|
||
|
|
$error = $this->_error("$method authentication failure",
|
||
|
|
$res);
|
||
|
|
$this->_smtp->rset();
|
||
|
|
return PEAR::raiseError($error, PEAR_MAIL_SMTP_ERROR_AUTH);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this->_smtp;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Add parameter associated with a SMTP service extension.
|
||
|
|
*
|
||
|
|
* @param string Extension keyword.
|
||
|
|
* @param string Any value the keyword needs.
|
||
|
|
*
|
||
|
|
* @since 1.2.0
|
||
|
|
*/
|
||
|
|
public function addServiceExtensionParameter($keyword, $value = null)
|
||
|
|
{
|
||
|
|
$this->_extparams[$keyword] = $value;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Disconnect and destroy the current SMTP connection.
|
||
|
|
*
|
||
|
|
* @return boolean True if the SMTP connection no longer exists.
|
||
|
|
*
|
||
|
|
* @since 1.1.9
|
||
|
|
*/
|
||
|
|
public function disconnect()
|
||
|
|
{
|
||
|
|
/* If we have an SMTP object, disconnect and destroy it. */
|
||
|
|
if (is_object($this->_smtp) && $this->_smtp->disconnect()) {
|
||
|
|
$this->_smtp = null;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* We are disconnected if we no longer have an SMTP object. */
|
||
|
|
return ($this->_smtp === null);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Build a standardized string describing the current SMTP error.
|
||
|
|
*
|
||
|
|
* @param string $text Custom string describing the error context.
|
||
|
|
* @param object $error Reference to the current PEAR_Error object.
|
||
|
|
*
|
||
|
|
* @return string A string describing the current SMTP error.
|
||
|
|
*
|
||
|
|
* @since 1.1.7
|
||
|
|
*/
|
||
|
|
protected function _error($text, $error)
|
||
|
|
{
|
||
|
|
/* Split the SMTP response into a code and a response string. */
|
||
|
|
list($code, $response) = $this->_smtp->getResponse();
|
||
|
|
|
||
|
|
/* Build our standardized error string. */
|
||
|
|
return $text
|
||
|
|
. ' [SMTP: ' . $error->getMessage()
|
||
|
|
. " (code: $code, response: $response)]";
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|