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<?php
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2
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/**
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3
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* PHPMailer RFC821 SMTP email transport class.
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* Version 5.2.7
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* PHP version 5.0.0
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* @category PHP
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* @package PHPMailer
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* @link https://github.com/PHPMailer/PHPMailer/
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* @author Marcus Bointon (coolbru) <phpmailer@synchromedia.co.uk>
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* @author Jim Jagielski (jimjag) <jimjag@gmail.com>
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* @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
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* @copyright 2013 Marcus Bointon
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* @copyright 2004 - 2008 Andy Prevost
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* @copyright 2010 - 2012 Jim Jagielski
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* @license http://www.gnu.org/copyleft/lesser.html Distributed under the Lesser General Public License (LGPL)
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*/
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/**
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* PHPMailer RFC821 SMTP email transport class.
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*
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* Implements RFC 821 SMTP commands
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* and provides some utility methods for sending mail to an SMTP server.
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*
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* PHP Version 5.0.0
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*
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* @category PHP
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* @package PHPMailer
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* @link https://github.com/PHPMailer/PHPMailer/blob/master/class.smtp.php
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* @author Chris Ryan <unknown@example.com>
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* @author Marcus Bointon <phpmailer@synchromedia.co.uk>
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* @license http://www.gnu.org/copyleft/lesser.html Distributed under the Lesser General Public License (LGPL)
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*/
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class SMTP
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{
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/**
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* The PHPMailer SMTP Version number.
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*/
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const VERSION = '5.2.7';
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40
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/**
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* SMTP line break constant.
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*/
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const CRLF = "\r\n";
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45
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/**
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* The SMTP port to use if one is not specified.
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*/
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const DEFAULT_SMTP_PORT = 25;
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50
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/**
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* The PHPMailer SMTP Version number.
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* @type string
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* @deprecated This should be a constant
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55
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* @see SMTP::VERSION
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*/
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public $Version = '5.2.7';
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/**
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* SMTP server port number.
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* @type int
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* @deprecated This is only ever ued as default value, so should be a constant
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* @see SMTP::DEFAULT_SMTP_PORT
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*/
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public $SMTP_PORT = 25;
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/**
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* SMTP reply line ending
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* @type string
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* @deprecated Use the class constant instead
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* @see SMTP::CRLF
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*/
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public $CRLF = "\r\n";
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/**
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* Debug output level.
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* Options: 0 for no output, 1 for commands, 2 for data and commands
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* @type int
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*/
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public $do_debug = 0;
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/**
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* The function/method to use for debugging output.
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* Options: 'echo', 'html' or 'error_log'
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* @type string
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*/
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public $Debugoutput = 'echo';
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/**
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* Whether to use VERP.
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* @type bool
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*/
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public $do_verp = false;
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/**
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* The SMTP timeout value for reads, in seconds.
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* @type int
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*/
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public $Timeout = 15;
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/**
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* The SMTP timelimit value for reads, in seconds.
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* @type int
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*/
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public $Timelimit = 30;
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/**
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* The socket for the server connection.
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* @type resource
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*/
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protected $smtp_conn;
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/**
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* Error message, if any, for the last call.
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* @type string
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*/
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protected $error = '';
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/**
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* The reply the server sent to us for HELO.
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* @type string
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*/
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protected $helo_rply = '';
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/**
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* The most recent reply received from the server.
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* @type string
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*/
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protected $last_reply = '';
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/**
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* Constructor.
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* @access public
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*/
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public function __construct()
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{
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$this->smtp_conn = 0;
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$this->error = null;
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$this->helo_rply = null;
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$this->do_debug = 0;
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}
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143
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/**
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* Output debugging info via a user-selected method.
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* @param string $str Debug string to output
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* @return void
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*/
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protected function edebug($str)
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{
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switch ($this->Debugoutput) {
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case 'error_log':
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//Don't output, just log
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error_log($str);
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break;
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case 'html':
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//Cleans up output a bit for a better looking, HTML-safe output
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echo htmlentities(
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preg_replace('/[\r\n]+/', '', $str),
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ENT_QUOTES,
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'UTF-8'
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)
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. "<br>\n";
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break;
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case 'echo':
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default:
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//Just echoes whatever was received
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echo $str;
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}
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}
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/**
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* Connect to an SMTP server.
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* @param string $host SMTP server IP or host name
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* @param int $port The port number to connect to
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* @param int $timeout How long to wait for the connection to open
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* @param array $options An array of options for stream_context_create()
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* @access public
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* @return bool
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*/
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public function connect($host, $port = null, $timeout = 30, $options = array())
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{
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// Clear errors to avoid confusion
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$this->error = null;
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185
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186
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// Make sure we are __not__ connected
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if ($this->connected()) {
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// Already connected, generate error
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$this->error = array('error' => 'Already connected to a server');
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return false;
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}
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193
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if (empty($port)) {
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$port = self::DEFAULT_SMTP_PORT;
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}
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196
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197
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// Connect to the SMTP server
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$errno = 0;
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$errstr = '';
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$socket_context = stream_context_create($options);
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//Suppress errors; connection failures are handled at a higher level
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$this->smtp_conn = @stream_socket_client(
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$host . ":" . $port,
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$errno,
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$errstr,
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$timeout,
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STREAM_CLIENT_CONNECT,
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$socket_context
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);
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// Verify we connected properly
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if (empty($this->smtp_conn)) {
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$this->error = array(
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'error' => 'Failed to connect to server',
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'errno' => $errno,
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'errstr' => $errstr
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);
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if ($this->do_debug >= 1) {
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219
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$this->edebug(
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220
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'SMTP -> ERROR: ' . $this->error['error']
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221
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. ": $errstr ($errno)"
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222
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);
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223
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}
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224
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return false;
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225
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}
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226
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227
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// SMTP server can take longer to respond, give longer timeout for first read
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228
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// Windows does not have support for this timeout function
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229
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if (substr(PHP_OS, 0, 3) != 'WIN') {
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230
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$max = ini_get('max_execution_time');
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231
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if ($max != 0 && $timeout > $max) { // Don't bother if unlimited
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232
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@set_time_limit($timeout);
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233
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}
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234
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stream_set_timeout($this->smtp_conn, $timeout, 0);
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235
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}
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236
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237
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// Get any announcement
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238
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$announce = $this->get_lines();
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239
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240
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if ($this->do_debug >= 2) {
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241
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$this->edebug('SMTP -> FROM SERVER:' . $announce);
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242
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}
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243
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244
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return true;
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245
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}
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246
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247
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/**
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248
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* Initiate a TLS (encrypted) session.
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249
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* @access public
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250
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* @return bool
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251
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*/
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252
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public function startTLS()
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253
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{
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254
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if (!$this->sendCommand("STARTTLS", "STARTTLS", 220)) {
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255
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return false;
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256
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}
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257
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// Begin encrypted connection
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258
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if (!stream_socket_enable_crypto(
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259
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$this->smtp_conn,
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260
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true,
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261
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STREAM_CRYPTO_METHOD_TLS_CLIENT
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262
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)
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|
263
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) {
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264
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return false;
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|
265
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}
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266
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return true;
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267
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}
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268
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|
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269
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/**
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270
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* Perform SMTP authentication.
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271
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* Must be run after hello().
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272
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* @see hello()
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273
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* @param string $username The user name
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274
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* @param string $password The password
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275
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* @param string $authtype The auth type (PLAIN, LOGIN, NTLM, CRAM-MD5)
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276
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* @param string $realm The auth realm for NTLM
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|
277
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* @param string $workstation The auth workstation for NTLM
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|
278
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* @access public
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|
279
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* @return bool True if successfully authenticated.
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|
280
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*/
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|
281
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public function authenticate(
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282
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$username,
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283
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$password,
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|
284
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$authtype = 'LOGIN',
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|
285
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$realm = '',
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|
286
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$workstation = ''
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287
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) {
|
|
288
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if (empty($authtype)) {
|
|
289
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$authtype = 'LOGIN';
|
|
290
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}
|
|
291
|
|
|
292
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switch ($authtype) {
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|
293
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case 'PLAIN':
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294
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// Start authentication
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295
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if (!$this->sendCommand('AUTH', 'AUTH PLAIN', 334)) {
|
|
296
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return false;
|
|
297
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}
|
|
298
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// Send encoded username and password
|
|
299
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if (!$this->sendCommand(
|
|
300
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'User & Password',
|
|
301
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base64_encode("\0" . $username . "\0" . $password),
|
|
302
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235
|
|
303
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)
|
|
304
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) {
|
|
305
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return false;
|
|
306
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}
|
|
307
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break;
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|
308
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case 'LOGIN':
|
|
309
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// Start authentication
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|
310
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if (!$this->sendCommand('AUTH', 'AUTH LOGIN', 334)) {
|
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311
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return false;
|
|
312
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}
|
|
313
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if (!$this->sendCommand("Username", base64_encode($username), 334)) {
|
|
314
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return false;
|
|
315
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}
|
|
316
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if (!$this->sendCommand("Password", base64_encode($password), 235)) {
|
|
317
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return false;
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|
318
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}
|
|
319
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break;
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|
320
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case 'NTLM':
|
|
321
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/*
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|
322
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* ntlm_sasl_client.php
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|
323
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* Bundled with Permission
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|
324
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*
|
|
325
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* How to telnet in windows:
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|
326
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* http://technet.microsoft.com/en-us/library/aa995718%28EXCHG.65%29.aspx
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|
327
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* PROTOCOL Docs http://curl.haxx.se/rfc/ntlm.html#ntlmSmtpAuthentication
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|
328
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*/
|
|
329
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require_once 'extras/ntlm_sasl_client.php';
|
|
330
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$temp = new stdClass();
|
|
331
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$ntlm_client = new ntlm_sasl_client_class;
|
|
332
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//Check that functions are available
|
|
333
|
if (!$ntlm_client->Initialize($temp)) {
|
|
334
|
$this->error = array('error' => $temp->error);
|
|
335
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if ($this->do_debug >= 1) {
|
|
336
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$this->edebug(
|
|
337
|
'You need to enable some modules in your php.ini file: '
|
|
338
|
. $this->error['error']
|
|
339
|
);
|
|
340
|
}
|
|
341
|
return false;
|
|
342
|
}
|
|
343
|
//msg1
|
|
344
|
$msg1 = $ntlm_client->TypeMsg1($realm, $workstation); //msg1
|
|
345
|
|
|
346
|
if (!$this->sendCommand(
|
|
347
|
'AUTH NTLM',
|
|
348
|
'AUTH NTLM ' . base64_encode($msg1),
|
|
349
|
334
|
|
350
|
)
|
|
351
|
) {
|
|
352
|
return false;
|
|
353
|
}
|
|
354
|
|
|
355
|
//Though 0 based, there is a white space after the 3 digit number
|
|
356
|
//msg2
|
|
357
|
$challenge = substr($this->last_reply, 3);
|
|
358
|
$challenge = base64_decode($challenge);
|
|
359
|
$ntlm_res = $ntlm_client->NTLMResponse(
|
|
360
|
substr($challenge, 24, 8),
|
|
361
|
$password
|
|
362
|
);
|
|
363
|
//msg3
|
|
364
|
$msg3 = $ntlm_client->TypeMsg3(
|
|
365
|
$ntlm_res,
|
|
366
|
$username,
|
|
367
|
$realm,
|
|
368
|
$workstation
|
|
369
|
);
|
|
370
|
// send encoded username
|
|
371
|
return $this->sendCommand('Username', base64_encode($msg3), 235);
|
|
372
|
break;
|
|
373
|
case 'CRAM-MD5':
|
|
374
|
// Start authentication
|
|
375
|
if (!$this->sendCommand('AUTH CRAM-MD5', 'AUTH CRAM-MD5', 334)) {
|
|
376
|
return false;
|
|
377
|
}
|
|
378
|
// Get the challenge
|
|
379
|
$challenge = base64_decode(substr($this->last_reply, 4));
|
|
380
|
|
|
381
|
// Build the response
|
|
382
|
$response = $username . ' ' . $this->hmac($challenge, $password);
|
|
383
|
|
|
384
|
// send encoded credentials
|
|
385
|
return $this->sendCommand('Username', base64_encode($response), 235);
|
|
386
|
break;
|
|
387
|
}
|
|
388
|
return true;
|
|
389
|
}
|
|
390
|
|
|
391
|
/**
|
|
392
|
* Calculate an MD5 HMAC hash.
|
|
393
|
* Works like hash_hmac('md5', $data, $key)
|
|
394
|
* in case that function is not available
|
|
395
|
* @param string $data The data to hash
|
|
396
|
* @param string $key The key to hash with
|
|
397
|
* @access protected
|
|
398
|
* @return string
|
|
399
|
*/
|
|
400
|
protected function hmac($data, $key)
|
|
401
|
{
|
|
402
|
if (function_exists('hash_hmac')) {
|
|
403
|
return hash_hmac('md5', $data, $key);
|
|
404
|
}
|
|
405
|
|
|
406
|
// The following borrowed from
|
|
407
|
// http://php.net/manual/en/function.mhash.php#27225
|
|
408
|
|
|
409
|
// RFC 2104 HMAC implementation for php.
|
|
410
|
// Creates an md5 HMAC.
|
|
411
|
// Eliminates the need to install mhash to compute a HMAC
|
|
412
|
// Hacked by Lance Rushing
|
|
413
|
|
|
414
|
$b = 64; // byte length for md5
|
|
415
|
if (strlen($key) > $b) {
|
|
416
|
$key = pack('H*', md5($key));
|
|
417
|
}
|
|
418
|
$key = str_pad($key, $b, chr(0x00));
|
|
419
|
$ipad = str_pad('', $b, chr(0x36));
|
|
420
|
$opad = str_pad('', $b, chr(0x5c));
|
|
421
|
$k_ipad = $key ^ $ipad;
|
|
422
|
$k_opad = $key ^ $opad;
|
|
423
|
|
|
424
|
return md5($k_opad . pack('H*', md5($k_ipad . $data)));
|
|
425
|
}
|
|
426
|
|
|
427
|
/**
|
|
428
|
* Check connection state.
|
|
429
|
* @access public
|
|
430
|
* @return bool True if connected.
|
|
431
|
*/
|
|
432
|
public function connected()
|
|
433
|
{
|
|
434
|
if (!empty($this->smtp_conn)) {
|
|
435
|
$sock_status = stream_get_meta_data($this->smtp_conn);
|
|
436
|
if ($sock_status['eof']) {
|
|
437
|
// the socket is valid but we are not connected
|
|
438
|
if ($this->do_debug >= 1) {
|
|
439
|
$this->edebug(
|
|
440
|
'SMTP -> NOTICE: EOF caught while checking if connected'
|
|
441
|
);
|
|
442
|
}
|
|
443
|
$this->close();
|
|
444
|
return false;
|
|
445
|
}
|
|
446
|
return true; // everything looks good
|
|
447
|
}
|
|
448
|
return false;
|
|
449
|
}
|
|
450
|
|
|
451
|
/**
|
|
452
|
* Close the socket and clean up the state of the class.
|
|
453
|
* Don't use this function without first trying to use QUIT.
|
|
454
|
* @see quit()
|
|
455
|
* @access public
|
|
456
|
* @return void
|
|
457
|
*/
|
|
458
|
public function close()
|
|
459
|
{
|
|
460
|
$this->error = null; // so there is no confusion
|
|
461
|
$this->helo_rply = null;
|
|
462
|
if (!empty($this->smtp_conn)) {
|
|
463
|
// close the connection and cleanup
|
|
464
|
fclose($this->smtp_conn);
|
|
465
|
$this->smtp_conn = 0;
|
|
466
|
}
|
|
467
|
}
|
|
468
|
|
|
469
|
/**
|
|
470
|
* Send an SMTP DATA command.
|
|
471
|
* Issues a data command and sends the msg_data to the server,
|
|
472
|
* finializing the mail transaction. $msg_data is the message
|
|
473
|
* that is to be send with the headers. Each header needs to be
|
|
474
|
* on a single line followed by a <CRLF> with the message headers
|
|
475
|
* and the message body being separated by and additional <CRLF>.
|
|
476
|
* Implements rfc 821: DATA <CRLF>
|
|
477
|
* @param string $msg_data Message data to send
|
|
478
|
* @access public
|
|
479
|
* @return bool
|
|
480
|
*/
|
|
481
|
public function data($msg_data)
|
|
482
|
{
|
|
483
|
if (!$this->sendCommand('DATA', 'DATA', 354)) {
|
|
484
|
return false;
|
|
485
|
}
|
|
486
|
|
|
487
|
/* The server is ready to accept data!
|
|
488
|
* according to rfc821 we should not send more than 1000
|
|
489
|
* including the CRLF
|
|
490
|
* characters on a single line so we will break the data up
|
|
491
|
* into lines by \r and/or \n then if needed we will break
|
|
492
|
* each of those into smaller lines to fit within the limit.
|
|
493
|
* in addition we will be looking for lines that start with
|
|
494
|
* a period '.' and append and additional period '.' to that
|
|
495
|
* line. NOTE: this does not count towards limit.
|
|
496
|
*/
|
|
497
|
|
|
498
|
// Normalize the line breaks before exploding
|
|
499
|
$msg_data = str_replace("\r\n", "\n", $msg_data);
|
|
500
|
$msg_data = str_replace("\r", "\n", $msg_data);
|
|
501
|
$lines = explode("\n", $msg_data);
|
|
502
|
|
|
503
|
/* We need to find a good way to determine if headers are
|
|
504
|
* in the msg_data or if it is a straight msg body
|
|
505
|
* currently I am assuming rfc822 definitions of msg headers
|
|
506
|
* and if the first field of the first line (':' separated)
|
|
507
|
* does not contain a space then it _should_ be a header
|
|
508
|
* and we can process all lines before a blank "" line as
|
|
509
|
* headers.
|
|
510
|
*/
|
|
511
|
|
|
512
|
$field = substr($lines[0], 0, strpos($lines[0], ':'));
|
|
513
|
$in_headers = false;
|
|
514
|
if (!empty($field) && !strstr($field, ' ')) {
|
|
515
|
$in_headers = true;
|
|
516
|
}
|
|
517
|
|
|
518
|
//RFC 2822 section 2.1.1 limit
|
|
519
|
$max_line_length = 998;
|
|
520
|
|
|
521
|
foreach ($lines as $line) {
|
|
522
|
$lines_out = null;
|
|
523
|
if ($line == '' && $in_headers) {
|
|
524
|
$in_headers = false;
|
|
525
|
}
|
|
526
|
// ok we need to break this line up into several smaller lines
|
|
527
|
while (strlen($line) > $max_line_length) {
|
|
528
|
$pos = strrpos(substr($line, 0, $max_line_length), ' ');
|
|
529
|
|
|
530
|
// Patch to fix DOS attack
|
|
531
|
if (!$pos) {
|
|
532
|
$pos = $max_line_length - 1;
|
|
533
|
$lines_out[] = substr($line, 0, $pos);
|
|
534
|
$line = substr($line, $pos);
|
|
535
|
} else {
|
|
536
|
$lines_out[] = substr($line, 0, $pos);
|
|
537
|
$line = substr($line, $pos + 1);
|
|
538
|
}
|
|
539
|
|
|
540
|
/* If processing headers add a LWSP-char to the front of new line
|
|
541
|
* rfc822 on long msg headers
|
|
542
|
*/
|
|
543
|
if ($in_headers) {
|
|
544
|
$line = "\t" . $line;
|
|
545
|
}
|
|
546
|
}
|
|
547
|
$lines_out[] = $line;
|
|
548
|
|
|
549
|
// send the lines to the server
|
|
550
|
while (list(, $line_out) = @each($lines_out)) {
|
|
551
|
if (strlen($line_out) > 0) {
|
|
552
|
if (substr($line_out, 0, 1) == '.') {
|
|
553
|
$line_out = '.' . $line_out;
|
|
554
|
}
|
|
555
|
}
|
|
556
|
$this->client_send($line_out . self::CRLF);
|
|
557
|
}
|
|
558
|
}
|
|
559
|
|
|
560
|
// Message data has been sent, complete the command
|
|
561
|
return $this->sendCommand('DATA END', '.', 250);
|
|
562
|
}
|
|
563
|
|
|
564
|
/**
|
|
565
|
* Send an SMTP HELO or EHLO command.
|
|
566
|
* Used to identify the sending server to the receiving server.
|
|
567
|
* This makes sure that client and server are in a known state.
|
|
568
|
* Implements from RFC 821: HELO <SP> <domain> <CRLF>
|
|
569
|
* and RFC 2821 EHLO.
|
|
570
|
* @param string $host The host name or IP to connect to
|
|
571
|
* @access public
|
|
572
|
* @return bool
|
|
573
|
*/
|
|
574
|
public function hello($host = '')
|
|
575
|
{
|
|
576
|
// Try extended hello first (RFC 2821)
|
|
577
|
if (!$this->sendHello('EHLO', $host)) {
|
|
578
|
if (!$this->sendHello('HELO', $host)) {
|
|
579
|
return false;
|
|
580
|
}
|
|
581
|
}
|
|
582
|
|
|
583
|
return true;
|
|
584
|
}
|
|
585
|
|
|
586
|
/**
|
|
587
|
* Send an SMTP HELO or EHLO command.
|
|
588
|
* Low-level implementation used by hello()
|
|
589
|
* @see hello()
|
|
590
|
* @param string $hello The HELO string
|
|
591
|
* @param string $host The hostname to say we are
|
|
592
|
* @access protected
|
|
593
|
* @return bool
|
|
594
|
*/
|
|
595
|
protected function sendHello($hello, $host)
|
|
596
|
{
|
|
597
|
$noerror = $this->sendCommand($hello, $hello . ' ' . $host, 250);
|
|
598
|
$this->helo_rply = $this->last_reply;
|
|
599
|
return $noerror;
|
|
600
|
}
|
|
601
|
|
|
602
|
/**
|
|
603
|
* Send an SMTP MAIL command.
|
|
604
|
* Starts a mail transaction from the email address specified in
|
|
605
|
* $from. Returns true if successful or false otherwise. If True
|
|
606
|
* the mail transaction is started and then one or more recipient
|
|
607
|
* commands may be called followed by a data command.
|
|
608
|
* Implements rfc 821: MAIL <SP> FROM:<reverse-path> <CRLF>
|
|
609
|
* @param string $from Source address of this message
|
|
610
|
* @access public
|
|
611
|
* @return bool
|
|
612
|
*/
|
|
613
|
public function mail($from)
|
|
614
|
{
|
|
615
|
$useVerp = ($this->do_verp ? ' XVERP' : '');
|
|
616
|
return $this->sendCommand(
|
|
617
|
'MAIL FROM',
|
|
618
|
'MAIL FROM:<' . $from . '>' . $useVerp,
|
|
619
|
250
|
|
620
|
);
|
|
621
|
}
|
|
622
|
|
|
623
|
/**
|
|
624
|
* Send an SMTP QUIT command.
|
|
625
|
* Closes the socket if there is no error or the $close_on_error argument is true.
|
|
626
|
* Implements from rfc 821: QUIT <CRLF>
|
|
627
|
* @param bool $close_on_error Should the connection close if an error occurs?
|
|
628
|
* @access public
|
|
629
|
* @return bool
|
|
630
|
*/
|
|
631
|
public function quit($close_on_error = true)
|
|
632
|
{
|
|
633
|
$noerror = $this->sendCommand('QUIT', 'QUIT', 221);
|
|
634
|
$e = $this->error; //Save any error
|
|
635
|
if ($noerror or $close_on_error) {
|
|
636
|
$this->close();
|
|
637
|
$this->error = $e; //Restore any error from the quit command
|
|
638
|
}
|
|
639
|
return $noerror;
|
|
640
|
}
|
|
641
|
|
|
642
|
/**
|
|
643
|
* Send an SMTP RCPT command.
|
|
644
|
* Sets the TO argument to $to.
|
|
645
|
* Returns true if the recipient was accepted false if it was rejected.
|
|
646
|
* Implements from rfc 821: RCPT <SP> TO:<forward-path> <CRLF>
|
|
647
|
* @param string $to The address the message is being sent to
|
|
648
|
* @access public
|
|
649
|
* @return bool
|
|
650
|
*/
|
|
651
|
public function recipient($to)
|
|
652
|
{
|
|
653
|
return $this->sendCommand(
|
|
654
|
'RCPT TO ',
|
|
655
|
'RCPT TO:<' . $to . '>',
|
|
656
|
array(250, 251)
|
|
657
|
);
|
|
658
|
}
|
|
659
|
|
|
660
|
/**
|
|
661
|
* Send an SMTP RSET command.
|
|
662
|
* Abort any transaction that is currently in progress.
|
|
663
|
* Implements rfc 821: RSET <CRLF>
|
|
664
|
* @access public
|
|
665
|
* @return bool True on success.
|
|
666
|
*/
|
|
667
|
public function reset()
|
|
668
|
{
|
|
669
|
return $this->sendCommand('RSET', 'RSET', 250);
|
|
670
|
}
|
|
671
|
|
|
672
|
/**
|
|
673
|
* Send a command to an SMTP server and check its return code.
|
|
674
|
* @param string $command The command name - not sent to the server
|
|
675
|
* @param string $commandstring The actual command to send
|
|
676
|
* @param int|array $expect One or more expected integer success codes
|
|
677
|
* @access protected
|
|
678
|
* @return bool True on success.
|
|
679
|
*/
|
|
680
|
protected function sendCommand($command, $commandstring, $expect)
|
|
681
|
{
|
|
682
|
if (!$this->connected()) {
|
|
683
|
$this->error = array(
|
|
684
|
"error" => "Called $command without being connected"
|
|
685
|
);
|
|
686
|
return false;
|
|
687
|
}
|
|
688
|
$this->client_send($commandstring . self::CRLF);
|
|
689
|
|
|
690
|
$reply = $this->get_lines();
|
|
691
|
$code = substr($reply, 0, 3);
|
|
692
|
|
|
693
|
if ($this->do_debug >= 2) {
|
|
694
|
$this->edebug('SMTP -> FROM SERVER:' . $reply);
|
|
695
|
}
|
|
696
|
|
|
697
|
if (!in_array($code, (array)$expect)) {
|
|
698
|
$this->last_reply = null;
|
|
699
|
$this->error = array(
|
|
700
|
"error" => "$command command failed",
|
|
701
|
"smtp_code" => $code,
|
|
702
|
"detail" => substr($reply, 4)
|
|
703
|
);
|
|
704
|
if ($this->do_debug >= 1) {
|
|
705
|
$this->edebug(
|
|
706
|
'SMTP -> ERROR: ' . $this->error['error'] . ': ' . $reply
|
|
707
|
);
|
|
708
|
}
|
|
709
|
return false;
|
|
710
|
}
|
|
711
|
|
|
712
|
$this->last_reply = $reply;
|
|
713
|
$this->error = null;
|
|
714
|
return true;
|
|
715
|
}
|
|
716
|
|
|
717
|
/**
|
|
718
|
* Send an SMTP SAML command.
|
|
719
|
* Starts a mail transaction from the email address specified in $from.
|
|
720
|
* Returns true if successful or false otherwise. If True
|
|
721
|
* the mail transaction is started and then one or more recipient
|
|
722
|
* commands may be called followed by a data command. This command
|
|
723
|
* will send the message to the users terminal if they are logged
|
|
724
|
* in and send them an email.
|
|
725
|
* Implements rfc 821: SAML <SP> FROM:<reverse-path> <CRLF>
|
|
726
|
* @param string $from The address the message is from
|
|
727
|
* @access public
|
|
728
|
* @return bool
|
|
729
|
*/
|
|
730
|
public function sendAndMail($from)
|
|
731
|
{
|
|
732
|
return $this->sendCommand("SAML", "SAML FROM:$from", 250);
|
|
733
|
}
|
|
734
|
|
|
735
|
/**
|
|
736
|
* Send an SMTP VRFY command.
|
|
737
|
* @param string $name The name to verify
|
|
738
|
* @access public
|
|
739
|
* @return bool
|
|
740
|
*/
|
|
741
|
public function verify($name)
|
|
742
|
{
|
|
743
|
return $this->sendCommand("VRFY", "VRFY $name", array(250, 251));
|
|
744
|
}
|
|
745
|
|
|
746
|
/**
|
|
747
|
* Send an SMTP NOOP command.
|
|
748
|
* Used to keep keep-alives alive, doesn't actually do anything
|
|
749
|
* @access public
|
|
750
|
* @return bool
|
|
751
|
*/
|
|
752
|
public function noop()
|
|
753
|
{
|
|
754
|
return $this->sendCommand("NOOP", "NOOP", 250);
|
|
755
|
}
|
|
756
|
|
|
757
|
/**
|
|
758
|
* Send an SMTP TURN command.
|
|
759
|
* This is an optional command for SMTP that this class does not support.
|
|
760
|
* This method is here to make the RFC821 Definition
|
|
761
|
* complete for this class and __may__ be implemented in future
|
|
762
|
* Implements from rfc 821: TURN <CRLF>
|
|
763
|
* @access public
|
|
764
|
* @return bool
|
|
765
|
*/
|
|
766
|
public function turn()
|
|
767
|
{
|
|
768
|
$this->error = array(
|
|
769
|
'error' => 'The SMTP TURN command is not implemented'
|
|
770
|
);
|
|
771
|
if ($this->do_debug >= 1) {
|
|
772
|
$this->edebug('SMTP -> NOTICE: ' . $this->error['error']);
|
|
773
|
}
|
|
774
|
return false;
|
|
775
|
}
|
|
776
|
|
|
777
|
/**
|
|
778
|
* Send raw data to the server.
|
|
779
|
* @param string $data The data to send
|
|
780
|
* @access public
|
|
781
|
* @return int|bool The number of bytes sent to the server or FALSE on error
|
|
782
|
*/
|
|
783
|
public function client_send($data)
|
|
784
|
{
|
|
785
|
if ($this->do_debug >= 1) {
|
|
786
|
$this->edebug("CLIENT -> SMTP: $data");
|
|
787
|
}
|
|
788
|
return fwrite($this->smtp_conn, $data);
|
|
789
|
}
|
|
790
|
|
|
791
|
/**
|
|
792
|
* Get the latest error.
|
|
793
|
* @access public
|
|
794
|
* @return array
|
|
795
|
*/
|
|
796
|
public function getError()
|
|
797
|
{
|
|
798
|
return $this->error;
|
|
799
|
}
|
|
800
|
|
|
801
|
/**
|
|
802
|
* Get the last reply from the server.
|
|
803
|
* @access public
|
|
804
|
* @return string
|
|
805
|
*/
|
|
806
|
public function getLastReply()
|
|
807
|
{
|
|
808
|
return $this->last_reply;
|
|
809
|
}
|
|
810
|
|
|
811
|
/**
|
|
812
|
* Read the SMTP server's response.
|
|
813
|
* Either before eof or socket timeout occurs on the operation.
|
|
814
|
* With SMTP we can tell if we have more lines to read if the
|
|
815
|
* 4th character is '-' symbol. If it is a space then we don't
|
|
816
|
* need to read anything else.
|
|
817
|
* @access protected
|
|
818
|
* @return string
|
|
819
|
*/
|
|
820
|
protected function get_lines()
|
|
821
|
{
|
|
822
|
$data = '';
|
|
823
|
$endtime = 0;
|
|
824
|
// If the connection is bad, give up now
|
|
825
|
if (!is_resource($this->smtp_conn)) {
|
|
826
|
return $data;
|
|
827
|
}
|
|
828
|
stream_set_timeout($this->smtp_conn, $this->Timeout);
|
|
829
|
if ($this->Timelimit > 0) {
|
|
830
|
$endtime = time() + $this->Timelimit;
|
|
831
|
}
|
|
832
|
while (is_resource($this->smtp_conn) && !feof($this->smtp_conn)) {
|
|
833
|
$str = @fgets($this->smtp_conn, 515);
|
|
834
|
if ($this->do_debug >= 4) {
|
|
835
|
$this->edebug("SMTP -> get_lines(): \$data was \"$data\"");
|
|
836
|
$this->edebug("SMTP -> get_lines(): \$str is \"$str\"");
|
|
837
|
}
|
|
838
|
$data .= $str;
|
|
839
|
if ($this->do_debug >= 4) {
|
|
840
|
$this->edebug("SMTP -> get_lines(): \$data is \"$data\"");
|
|
841
|
}
|
|
842
|
// if 4th character is a space, we are done reading, break the loop
|
|
843
|
if (substr($str, 3, 1) == ' ') {
|
|
844
|
break;
|
|
845
|
}
|
|
846
|
// Timed-out? Log and break
|
|
847
|
$info = stream_get_meta_data($this->smtp_conn);
|
|
848
|
if ($info['timed_out']) {
|
|
849
|
if ($this->do_debug >= 4) {
|
|
850
|
$this->edebug(
|
|
851
|
'SMTP -> get_lines(): timed-out (' . $this->Timeout . ' sec)'
|
|
852
|
);
|
|
853
|
}
|
|
854
|
break;
|
|
855
|
}
|
|
856
|
// Now check if reads took too long
|
|
857
|
if ($endtime) {
|
|
858
|
if (time() > $endtime) {
|
|
859
|
if ($this->do_debug >= 4) {
|
|
860
|
$this->edebug(
|
|
861
|
'SMTP -> get_lines(): timelimit reached ('
|
|
862
|
. $this->Timelimit . ' sec)'
|
|
863
|
);
|
|
864
|
}
|
|
865
|
break;
|
|
866
|
}
|
|
867
|
}
|
|
868
|
}
|
|
869
|
return $data;
|
|
870
|
}
|
|
871
|
|
|
872
|
/**
|
|
873
|
* Enable or disable VERP address generation.
|
|
874
|
* @param bool $enabled
|
|
875
|
*/
|
|
876
|
public function setVerp($enabled = false)
|
|
877
|
{
|
|
878
|
$this->do_verp = $enabled;
|
|
879
|
}
|
|
880
|
|
|
881
|
/**
|
|
882
|
* Get VERP address generation mode.
|
|
883
|
* @return bool
|
|
884
|
*/
|
|
885
|
public function getVerp()
|
|
886
|
{
|
|
887
|
return $this->do_verp;
|
|
888
|
}
|
|
889
|
|
|
890
|
/**
|
|
891
|
* Set debug output method.
|
|
892
|
* @param string $method The function/method to use for debugging output.
|
|
893
|
*/
|
|
894
|
public function setDebugOutput($method = 'echo')
|
|
895
|
{
|
|
896
|
$this->Debugoutput = $method;
|
|
897
|
}
|
|
898
|
|
|
899
|
/**
|
|
900
|
* Get debug output method.
|
|
901
|
* @return string
|
|
902
|
*/
|
|
903
|
public function getDebugOutput()
|
|
904
|
{
|
|
905
|
return $this->Debugoutput;
|
|
906
|
}
|
|
907
|
|
|
908
|
/**
|
|
909
|
* Set debug output level.
|
|
910
|
* @param int $level
|
|
911
|
*/
|
|
912
|
public function setDebugLevel($level = 0)
|
|
913
|
{
|
|
914
|
$this->do_debug = $level;
|
|
915
|
}
|
|
916
|
|
|
917
|
/**
|
|
918
|
* Get debug output level.
|
|
919
|
* @return int
|
|
920
|
*/
|
|
921
|
public function getDebugLevel()
|
|
922
|
{
|
|
923
|
return $this->do_debug;
|
|
924
|
}
|
|
925
|
|
|
926
|
/**
|
|
927
|
* Set SMTP timeout.
|
|
928
|
* @param int $timeout
|
|
929
|
*/
|
|
930
|
public function setTimeout($timeout = 0)
|
|
931
|
{
|
|
932
|
$this->Timeout = $timeout;
|
|
933
|
}
|
|
934
|
|
|
935
|
/**
|
|
936
|
* Get SMTP timeout.
|
|
937
|
* @return int
|
|
938
|
*/
|
|
939
|
public function getTimeout()
|
|
940
|
{
|
|
941
|
return $this->Timeout;
|
|
942
|
}
|
|
943
|
}
|