970 lines
28 KiB
PHP
970 lines
28 KiB
PHP
<?php
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/* vim: set expandtab softtabstop=4 tabstop=4 shiftwidth=4: */
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// +----------------------------------------------------------------------+
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// | PHP Version 4 |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 1997-2003 The PHP Group |
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// +----------------------------------------------------------------------+
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// | This source file is subject to version 2.02 of the PHP license, |
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// | that is bundled with this package in the file LICENSE, and is |
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// | available at through the world-wide-web at |
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// | http://www.php.net/license/2_02.txt. |
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// | If you did not receive a copy of the PHP license and are unable to |
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// | obtain it through the world-wide-web, please send a note to |
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// | license@php.net so we can mail you a copy immediately. |
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// +----------------------------------------------------------------------+
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// | Authors: Chuck Hagenbuch <chuck@horde.org> |
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// | Jon Parise <jon@php.net> |
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// | Damian Alejandro Fernandez Sosa <damlists@cnba.uba.ar> |
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// +----------------------------------------------------------------------+
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require_once 'PEAR.php';
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require_once 'Net/Socket.php';
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/**
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* Provides an implementation of the SMTP protocol using PEAR's
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* Net_Socket:: class.
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*
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* @package Net_SMTP
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* @author Chuck Hagenbuch <chuck@horde.org>
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* @author Jon Parise <jon@php.net>
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* @author Damian Alejandro Fernandez Sosa <damlists@cnba.uba.ar>
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*
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* @example basic.php A basic implementation of the Net_SMTP package.
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*/
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class Net_SMTP
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{
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/**
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* The server to connect to.
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* @var string
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* @access public
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*/
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var $host = 'localhost';
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/**
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* The port to connect to.
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* @var int
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* @access public
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*/
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var $port = 25;
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/**
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* The value to give when sending EHLO or HELO.
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* @var string
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* @access public
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*/
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var $localhost = 'localhost';
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/**
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* List of supported authentication methods, in preferential order.
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* @var array
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* @access public
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*/
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var $auth_methods = array('DIGEST-MD5', 'CRAM-MD5', 'LOGIN', 'PLAIN');
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/**
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* Should debugging output be enabled?
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* @var boolean
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* @access private
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*/
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var $_debug = false;
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/**
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* The socket resource being used to connect to the SMTP server.
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* @var resource
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* @access private
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*/
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var $_socket = null;
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/**
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* The most recent server response code.
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* @var int
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* @access private
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*/
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var $_code = -1;
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/**
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* The most recent server response arguments.
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* @var array
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* @access private
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*/
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var $_arguments = array();
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/**
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* Stores detected features of the SMTP server.
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* @var array
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* @access private
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*/
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var $_esmtp = array();
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/**
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* Instantiates a new Net_SMTP object, overriding any defaults
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* with parameters that are passed in.
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*
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* @param string The server to connect to.
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* @param int The port to connect to.
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* @param string The value to give when sending EHLO or HELO.
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*
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* @access public
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* @since 1.0
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*/
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function Net_SMTP($host = null, $port = null, $localhost = null)
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{
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if (isset($host)) $this->host = $host;
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if (isset($port)) $this->port = $port;
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if (isset($localhost)) $this->localhost = $localhost;
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$this->_socket = new Net_Socket();
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/*
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* Include the Auth_SASL package. If the package is not available,
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* we disable the authentication methods that depend upon it.
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*/
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if ((@include_once 'Auth/SASL.php') === false) {
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$pos = array_search('DIGEST-MD5', $this->auth_methods);
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unset($this->auth_methods[$pos]);
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$pos = array_search('CRAM-MD5', $this->auth_methods);
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unset($this->auth_methods[$pos]);
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}
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}
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/**
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* Set the value of the debugging flag.
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*
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* @param boolean $debug New value for the debugging flag.
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*
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* @access public
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* @since 1.1.0
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*/
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function setDebug($debug)
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{
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$this->_debug = $debug;
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}
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/**
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* Send the given string of data to the server.
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*
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* @param string $data The string of data to send.
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*
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* @return mixed True on success or a PEAR_Error object on failure.
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*
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* @access private
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* @since 1.1.0
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*/
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function _send($data)
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{
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if ($this->_debug) {
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echo "DEBUG: Send: $data\n";
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}
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if (PEAR::isError($error = $this->_socket->write($data))) {
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return new PEAR_Error('Failed to write to socket: ' .
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$error->getMessage());
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}
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return true;
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}
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/**
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* Send a command to the server with an optional string of arguments.
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* A carriage return / linefeed (CRLF) sequence will be appended to each
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* command string before it is sent to the SMTP server.
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*
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* @param string $command The SMTP command to send to the server.
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* @param string $args A string of optional arguments to append
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* to the command.
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*
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* @return mixed The result of the _send() call.
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*
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* @access private
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* @since 1.1.0
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*/
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function _put($command, $args = '')
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{
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if (!empty($args)) {
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return $this->_send($command . ' ' . $args . "\r\n");
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}
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return $this->_send($command . "\r\n");
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}
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/**
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* Read a reply from the SMTP server. The reply consists of a response
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* code and a response message.
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*
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* @param mixed $valid The set of valid response codes. These
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* may be specified as an array of integer
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* values or as a single integer value.
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*
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* @return mixed True if the server returned a valid response code or
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* a PEAR_Error object is an error condition is reached.
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*
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* @access private
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* @since 1.1.0
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*
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* @see getResponse
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*/
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function _parseResponse($valid)
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{
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$this->_code = -1;
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$this->_arguments = array();
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while ($line = $this->_socket->readLine()) {
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if ($this->_debug) {
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echo "DEBUG: Recv: $line\n";
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}
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/* If we receive an empty line, the connection has been closed. */
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if (empty($line)) {
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$this->disconnect();
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return new PEAR_Error("Connection was unexpectedly closed");
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}
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/* Read the code and store the rest in the arguments array. */
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$code = substr($line, 0, 3);
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$this->_arguments[] = trim(substr($line, 4));
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/* Check the syntax of the response code. */
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if (is_numeric($code)) {
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$this->_code = (int)$code;
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} else {
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$this->_code = -1;
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break;
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}
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/* If this is not a multiline response, we're done. */
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if (substr($line, 3, 1) != '-') {
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break;
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}
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}
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/* Compare the server's response code with the valid code. */
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if (is_int($valid) && ($this->_code === $valid)) {
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return true;
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}
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/* If we were given an array of valid response codes, check each one. */
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if (is_array($valid)) {
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foreach ($valid as $valid_code) {
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if ($this->_code === $valid_code) {
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return true;
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}
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}
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}
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return new PEAR_Error("Invalid response code received from server");
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}
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/**
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* Return a 2-tuple containing the last response from the SMTP server.
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*
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* @return array A two-element array: the first element contains the
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* response code as an integer and the second element
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* contains the response's arguments as a string.
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*
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* @access public
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* @since 1.1.0
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*/
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function getResponse()
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{
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return array($this->_code, join("\n", $this->_arguments));
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}
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/**
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* Attempt to connect to the SMTP server.
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*
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* @param int $timeout The timeout value (in seconds) for the
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* socket connection.
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* @param bool $persistent Should a persistent socket connection
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* be used?
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*
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* @return mixed Returns a PEAR_Error with an error message on any
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* kind of failure, or true on success.
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* @access public
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* @since 1.0
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*/
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function connect($timeout = null, $persistent = false)
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{
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$result = $this->_socket->connect($this->host, $this->port,
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$persistent, $timeout);
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if (PEAR::isError($result)) {
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return new PEAR_Error('Failed to connect socket: ' .
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$result->getMessage());
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}
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if (PEAR::isError($error = $this->_parseResponse(220))) {
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return $error;
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}
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if (PEAR::isError($error = $this->_negotiate())) {
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return $error;
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}
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return true;
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}
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/**
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* Attempt to disconnect from the SMTP server.
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*
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* @return mixed Returns a PEAR_Error with an error message on any
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* kind of failure, or true on success.
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* @access public
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* @since 1.0
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*/
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function disconnect()
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{
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if (PEAR::isError($error = $this->_put('QUIT'))) {
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return $error;
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}
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if (PEAR::isError($error = $this->_parseResponse(221))) {
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return $error;
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}
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if (PEAR::isError($error = $this->_socket->disconnect())) {
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return new PEAR_Error('Failed to disconnect socket: ' .
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$error->getMessage());
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}
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return true;
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}
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/**
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* Attempt to send the EHLO command and obtain a list of ESMTP
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* extensions available, and failing that just send HELO.
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*
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* @return mixed Returns a PEAR_Error with an error message on any
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* kind of failure, or true on success.
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*
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* @access private
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* @since 1.1.0
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*/
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function _negotiate()
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{
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if (PEAR::isError($error = $this->_put('EHLO', $this->localhost))) {
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return $error;
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}
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if (PEAR::isError($this->_parseResponse(250))) {
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/* If we receive a 503 response, we're already authenticated. */
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if ($this->_code === 503) {
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return true;
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}
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/* If the EHLO failed, try the simpler HELO command. */
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if (PEAR::isError($error = $this->_put('HELO', $this->localhost))) {
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return $error;
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}
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if (PEAR::isError($this->_parseResponse(250))) {
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return new PEAR_Error('HELO was not accepted: ', $this->_code);
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}
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return true;
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}
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foreach ($this->_arguments as $argument) {
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$verb = strtok($argument, ' ');
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$arguments = substr($argument, strlen($verb) + 1,
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strlen($argument) - strlen($verb) - 1);
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$this->_esmtp[$verb] = $arguments;
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}
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return true;
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}
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/**
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* Returns the name of the best authentication method that the server
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* has advertised.
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*
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* @return mixed Returns a string containing the name of the best
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* supported authentication method or a PEAR_Error object
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* if a failure condition is encountered.
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* @access private
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* @since 1.1.0
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*/
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function _getBestAuthMethod()
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{
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$available_methods = explode(' ', $this->_esmtp['AUTH']);
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foreach ($this->auth_methods as $method) {
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if (in_array($method, $available_methods)) {
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return $method;
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}
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}
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return new PEAR_Error('No supported authentication methods');
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}
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/**
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* Attempt to do SMTP authentication.
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*
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* @param string The userid to authenticate as.
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* @param string The password to authenticate with.
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* @param string The requested authentication method. If none is
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* specified, the best supported method will be used.
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*
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* @return mixed Returns a PEAR_Error with an error message on any
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* kind of failure, or true on success.
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* @access public
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* @since 1.0
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*/
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function auth($uid, $pwd , $method = '')
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{
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if (empty($this->_esmtp['AUTH'])) {
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return new PEAR_Error('SMTP server does no support authentication');
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}
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/*
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* If no method has been specified, get the name of the best supported
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* method advertised by the SMTP server.
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*/
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if (empty($method)) {
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if (PEAR::isError($method = $this->_getBestAuthMethod())) {
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/* Return the PEAR_Error object from _getBestAuthMethod(). */
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return $method;
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}
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} else {
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$method = strtoupper($method);
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if (!in_array($method, $this->auth_methods)) {
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return new PEAR_Error("$method is not a supported authentication method");
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}
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}
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switch ($method) {
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case 'DIGEST-MD5':
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$result = $this->_authDigest_MD5($uid, $pwd);
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break;
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case 'CRAM-MD5':
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$result = $this->_authCRAM_MD5($uid, $pwd);
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break;
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case 'LOGIN':
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$result = $this->_authLogin($uid, $pwd);
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break;
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case 'PLAIN':
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$result = $this->_authPlain($uid, $pwd);
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break;
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default:
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$result = new PEAR_Error("$method is not a supported authentication method");
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break;
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}
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/* If an error was encountered, return the PEAR_Error object. */
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if (PEAR::isError($result)) {
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return $result;
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}
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/* RFC-2554 requires us to re-negotiate ESMTP after an AUTH. */
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if (PEAR::isError($error = $this->_negotiate())) {
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return $error;
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}
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return true;
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}
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/**
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* Authenticates the user using the DIGEST-MD5 method.
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*
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* @param string The userid to authenticate as.
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* @param string The password to authenticate with.
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*
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* @return mixed Returns a PEAR_Error with an error message on any
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* kind of failure, or true on success.
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* @access private
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* @since 1.1.0
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*/
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function _authDigest_MD5($uid, $pwd)
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{
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if (PEAR::isError($error = $this->_put('AUTH', 'DIGEST-MD5'))) {
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return $error;
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}
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/* 334: Continue authentication request */
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if (PEAR::isError($error = $this->_parseResponse(334))) {
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/* 503: Error: already authenticated */
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if ($this->_code === 503) {
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return true;
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}
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return $error;
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}
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$challenge = base64_decode($this->_arguments[0]);
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$digest = &Auth_SASL::factory('digestmd5');
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$auth_str = base64_encode($digest->getResponse($uid, $pwd, $challenge,
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$this->host, "smtp"));
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if (PEAR::isError($error = $this->_put($auth_str))) {
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return $error;
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}
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/* 334: Continue authentication request */
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if (PEAR::isError($error = $this->_parseResponse(334))) {
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return $error;
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}
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|
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/*
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* We don't use the protocol's third step because SMTP doesn't allow
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* subsequent authentication, so we just silently ignore it.
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*/
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if (PEAR::isError($error = $this->_put(' '))) {
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return $error;
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}
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/* 235: Authentication successful */
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if (PEAR::isError($error = $this->_parseResponse(235))) {
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return $error;
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}
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}
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|
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/**
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* Authenticates the user using the CRAM-MD5 method.
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*
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* @param string The userid to authenticate as.
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* @param string The password to authenticate with.
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*
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* @return mixed Returns a PEAR_Error with an error message on any
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* kind of failure, or true on success.
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* @access private
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* @since 1.1.0
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*/
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function _authCRAM_MD5($uid, $pwd)
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{
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if (PEAR::isError($error = $this->_put('AUTH', 'CRAM-MD5'))) {
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return $error;
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}
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/* 334: Continue authentication request */
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if (PEAR::isError($error = $this->_parseResponse(334))) {
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/* 503: Error: already authenticated */
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if ($this->_code === 503) {
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return true;
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}
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return $error;
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}
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$challenge = base64_decode($this->_arguments[0]);
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$cram = &Auth_SASL::factory('crammd5');
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$auth_str = base64_encode($cram->getResponse($uid, $pwd, $challenge));
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if (PEAR::isError($error = $this->_put($auth_str))) {
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return $error;
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}
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/* 235: Authentication successful */
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if (PEAR::isError($error = $this->_parseResponse(235))) {
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return $error;
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}
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}
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|
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/**
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|
* Authenticates the user using the LOGIN method.
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|
*
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* @param string The userid to authenticate as.
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* @param string The password to authenticate with.
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*
|
|
* @return mixed Returns a PEAR_Error with an error message on any
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* kind of failure, or true on success.
|
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* @access private
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|
* @since 1.1.0
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|
*/
|
|
function _authLogin($uid, $pwd)
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{
|
|
if (PEAR::isError($error = $this->_put('AUTH', 'LOGIN'))) {
|
|
return $error;
|
|
}
|
|
/* 334: Continue authentication request */
|
|
if (PEAR::isError($error = $this->_parseResponse(334))) {
|
|
/* 503: Error: already authenticated */
|
|
if ($this->_code === 503) {
|
|
return true;
|
|
}
|
|
return $error;
|
|
}
|
|
|
|
if (PEAR::isError($error = $this->_put(base64_encode($uid)))) {
|
|
return $error;
|
|
}
|
|
/* 334: Continue authentication request */
|
|
if (PEAR::isError($error = $this->_parseResponse(334))) {
|
|
return $error;
|
|
}
|
|
|
|
if (PEAR::isError($error = $this->_put(base64_encode($pwd)))) {
|
|
return $error;
|
|
}
|
|
|
|
/* 235: Authentication successful */
|
|
if (PEAR::isError($error = $this->_parseResponse(235))) {
|
|
return $error;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Authenticates the user using the PLAIN method.
|
|
*
|
|
* @param string The userid to authenticate as.
|
|
* @param string The password to authenticate with.
|
|
*
|
|
* @return mixed Returns a PEAR_Error with an error message on any
|
|
* kind of failure, or true on success.
|
|
* @access private
|
|
* @since 1.1.0
|
|
*/
|
|
function _authPlain($uid, $pwd)
|
|
{
|
|
if (PEAR::isError($error = $this->_put('AUTH', 'PLAIN'))) {
|
|
return $error;
|
|
}
|
|
/* 334: Continue authentication request */
|
|
if (PEAR::isError($error = $this->_parseResponse(334))) {
|
|
/* 503: Error: already authenticated */
|
|
if ($this->_code === 503) {
|
|
return true;
|
|
}
|
|
return $error;
|
|
}
|
|
|
|
$auth_str = base64_encode(chr(0) . $uid . chr(0) . $pwd);
|
|
|
|
if (PEAR::isError($error = $this->_put($auth_str))) {
|
|
return $error;
|
|
}
|
|
|
|
/* 235: Authentication successful */
|
|
if (PEAR::isError($error = $this->_parseResponse(235))) {
|
|
return $error;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Send the HELO command.
|
|
*
|
|
* @param string The domain name to say we are.
|
|
*
|
|
* @return mixed Returns a PEAR_Error with an error message on any
|
|
* kind of failure, or true on success.
|
|
* @access public
|
|
* @since 1.0
|
|
*/
|
|
function helo($domain)
|
|
{
|
|
if (PEAR::isError($error = $this->_put('HELO', $domain))) {
|
|
return $error;
|
|
}
|
|
if (PEAR::isError($error = $this->_parseResponse(250))) {
|
|
return $error;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Send the MAIL FROM: command.
|
|
*
|
|
* @param string The sender (reverse path) to set.
|
|
*
|
|
* @return mixed Returns a PEAR_Error with an error message on any
|
|
* kind of failure, or true on success.
|
|
* @access public
|
|
* @since 1.0
|
|
*/
|
|
function mailFrom($sender)
|
|
{
|
|
if (PEAR::isError($error = $this->_put('MAIL', "FROM:<$sender>"))) {
|
|
return $error;
|
|
}
|
|
if (PEAR::isError($error = $this->_parseResponse(250))) {
|
|
return $error;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Send the RCPT TO: command.
|
|
*
|
|
* @param string The recipient (forward path) to add.
|
|
*
|
|
* @return mixed Returns a PEAR_Error with an error message on any
|
|
* kind of failure, or true on success.
|
|
* @access public
|
|
* @since 1.0
|
|
*/
|
|
function rcptTo($recipient)
|
|
{
|
|
if (PEAR::isError($error = $this->_put('RCPT', "TO:<$recipient>"))) {
|
|
return $error;
|
|
}
|
|
if (PEAR::isError($error = $this->_parseResponse(array(250, 251)))) {
|
|
return $error;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Quote the data so that it meets SMTP standards.
|
|
*
|
|
* This is provided as a separate public function to facilitate easier
|
|
* overloading for the cases where it is desirable to customize the
|
|
* quoting behavior.
|
|
*
|
|
* @param string The message text to quote. The string must be passed
|
|
* by reference, and the text will be modified in place.
|
|
*
|
|
* @access public
|
|
* @since 1.2
|
|
*/
|
|
function quotedata(&$data)
|
|
{
|
|
/*
|
|
* Change Unix (\n) and Mac (\r) linefeeds into Internet-standard CRLF
|
|
* (\r\n) linefeeds.
|
|
*/
|
|
$data = preg_replace("/([^\r]{1})\n/", "\\1\r\n", $data);
|
|
$data = preg_replace("/\n\n/", "\n\r\n", $data);
|
|
|
|
/*
|
|
* Because a single leading period (.) signifies an end to the data,
|
|
* legitimate leading periods need to be "doubled" (e.g. '..').
|
|
*/
|
|
$data = preg_replace("/\n\./", "\n..", $data);
|
|
}
|
|
|
|
/**
|
|
* Send the DATA command.
|
|
*
|
|
* @param string The message body to send.
|
|
*
|
|
* @return mixed Returns a PEAR_Error with an error message on any
|
|
* kind of failure, or true on success.
|
|
* @access public
|
|
* @since 1.0
|
|
*/
|
|
function data($data)
|
|
{
|
|
/*
|
|
* RFC 1870, section 3, subsection 3 states "a value of zero indicates
|
|
* that no fixed maximum message size is in force". Furthermore, it
|
|
* says that if "the parameter is omitted no information is conveyed
|
|
* about the server's fixed maximum message size".
|
|
*/
|
|
if (isset($this->_esmtp['SIZE']) && ($this->_esmtp['SIZE'] > 0)) {
|
|
if (strlen($data) >= $this->_esmtp['SIZE']) {
|
|
$this->disconnect();
|
|
return new PEAR_Error('Message size excedes the server limit');
|
|
}
|
|
}
|
|
|
|
/* Quote the data based on the SMTP standards. */
|
|
$this->quotedata($data);
|
|
|
|
if (PEAR::isError($error = $this->_put('DATA'))) {
|
|
return $error;
|
|
}
|
|
if (PEAR::isError($error = $this->_parseResponse(354))) {
|
|
return $error;
|
|
}
|
|
|
|
if (PEAR::isError($this->_send($data . "\r\n.\r\n"))) {
|
|
return new PEAR_Error('write to socket failed');
|
|
}
|
|
if (PEAR::isError($error = $this->_parseResponse(250))) {
|
|
return $error;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Send the SEND FROM: command.
|
|
*
|
|
* @param string The reverse path to send.
|
|
*
|
|
* @return mixed Returns a PEAR_Error with an error message on any
|
|
* kind of failure, or true on success.
|
|
* @access public
|
|
* @since 1.2.6
|
|
*/
|
|
function sendFrom($path)
|
|
{
|
|
if (PEAR::isError($error = $this->_put('SEND', "FROM:<$path>"))) {
|
|
return $error;
|
|
}
|
|
if (PEAR::isError($error = $this->_parseResponse(250))) {
|
|
return $error;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Backwards-compatibility wrapper for sendFrom().
|
|
*
|
|
* @param string The reverse path to send.
|
|
*
|
|
* @return mixed Returns a PEAR_Error with an error message on any
|
|
* kind of failure, or true on success.
|
|
*
|
|
* @access public
|
|
* @since 1.0
|
|
* @deprecated 1.2.6
|
|
*/
|
|
function send_from($path)
|
|
{
|
|
return sendFrom($path);
|
|
}
|
|
|
|
/**
|
|
* Send the SOML FROM: command.
|
|
*
|
|
* @param string The reverse path to send.
|
|
*
|
|
* @return mixed Returns a PEAR_Error with an error message on any
|
|
* kind of failure, or true on success.
|
|
* @access public
|
|
* @since 1.2.6
|
|
*/
|
|
function somlFrom($path)
|
|
{
|
|
if (PEAR::isError($error = $this->_put('SOML', "FROM:<$path>"))) {
|
|
return $error;
|
|
}
|
|
if (PEAR::isError($error = $this->_parseResponse(250))) {
|
|
return $error;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Backwards-compatibility wrapper for somlFrom().
|
|
*
|
|
* @param string The reverse path to send.
|
|
*
|
|
* @return mixed Returns a PEAR_Error with an error message on any
|
|
* kind of failure, or true on success.
|
|
*
|
|
* @access public
|
|
* @since 1.0
|
|
* @deprecated 1.2.6
|
|
*/
|
|
function soml_from($path)
|
|
{
|
|
return somlFrom($path);
|
|
}
|
|
|
|
/**
|
|
* Send the SAML FROM: command.
|
|
*
|
|
* @param string The reverse path to send.
|
|
*
|
|
* @return mixed Returns a PEAR_Error with an error message on any
|
|
* kind of failure, or true on success.
|
|
* @access public
|
|
* @since 1.2.6
|
|
*/
|
|
function samlFrom($path)
|
|
{
|
|
if (PEAR::isError($error = $this->_put('SAML', "FROM:<$path>"))) {
|
|
return $error;
|
|
}
|
|
if (PEAR::isError($error = $this->_parseResponse(250))) {
|
|
return $error;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Backwards-compatibility wrapper for samlFrom().
|
|
*
|
|
* @param string The reverse path to send.
|
|
*
|
|
* @return mixed Returns a PEAR_Error with an error message on any
|
|
* kind of failure, or true on success.
|
|
*
|
|
* @access public
|
|
* @since 1.0
|
|
* @deprecated 1.2.6
|
|
*/
|
|
function saml_from($path)
|
|
{
|
|
return samlFrom($path);
|
|
}
|
|
|
|
/**
|
|
* Send the RSET command.
|
|
*
|
|
* @return mixed Returns a PEAR_Error with an error message on any
|
|
* kind of failure, or true on success.
|
|
* @access public
|
|
* @since 1.0
|
|
*/
|
|
function rset()
|
|
{
|
|
if (PEAR::isError($error = $this->_put('RSET'))) {
|
|
return $error;
|
|
}
|
|
if (PEAR::isError($error = $this->_parseResponse(250))) {
|
|
return $error;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Send the VRFY command.
|
|
*
|
|
* @param string The string to verify
|
|
*
|
|
* @return mixed Returns a PEAR_Error with an error message on any
|
|
* kind of failure, or true on success.
|
|
* @access public
|
|
* @since 1.0
|
|
*/
|
|
function vrfy($string)
|
|
{
|
|
/* Note: 251 is also a valid response code */
|
|
if (PEAR::isError($error = $this->_put('VRFY', $string))) {
|
|
return $error;
|
|
}
|
|
if (PEAR::isError($error = $this->_parseResponse(250))) {
|
|
return $error;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Send the NOOP command.
|
|
*
|
|
* @return mixed Returns a PEAR_Error with an error message on any
|
|
* kind of failure, or true on success.
|
|
* @access public
|
|
* @since 1.0
|
|
*/
|
|
function noop()
|
|
{
|
|
if (PEAR::isError($error = $this->_put('NOOP'))) {
|
|
return $error;
|
|
}
|
|
if (PEAR::isError($error = $this->_parseResponse(250))) {
|
|
return $error;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Backwards-compatibility method. identifySender()'s functionality is
|
|
* now handled internally.
|
|
*
|
|
* @return boolean This method always return true.
|
|
*
|
|
* @access public
|
|
* @since 1.0
|
|
*/
|
|
function identifySender()
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
|
|
?>
|