1089 行
33 KiB
PHP
1089 行
33 KiB
PHP
<?php
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/*~ class.smtp.php
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.---------------------------------------------------------------------------.
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| Software: PHPMailer - PHP email class |
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| Version: 5.2.6 |
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| Site: https://github.com/PHPMailer/PHPMailer/ |
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| ------------------------------------------------------------------------- |
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| Admins: Marcus Bointon |
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| Admins: Jim Jagielski |
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| Authors: Andy Prevost (codeworxtech) codeworxtech@users.sourceforge.net |
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| : Marcus Bointon (coolbru) phpmailer@synchromedia.co.uk |
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| : Jim Jagielski (jimjag) jimjag@gmail.com |
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| Founder: Brent R. Matzelle (original founder) |
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| Copyright (c) 2010-2012, Jim Jagielski. All Rights Reserved. |
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| Copyright (c) 2004-2009, Andy Prevost. All Rights Reserved. |
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| Copyright (c) 2001-2003, Brent R. Matzelle |
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| ------------------------------------------------------------------------- |
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| License: Distributed under the Lesser General Public License (LGPL) |
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| http://www.gnu.org/copyleft/lesser.html |
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| This program is distributed in the hope that it will be useful - WITHOUT |
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| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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| FITNESS FOR A PARTICULAR PURPOSE. |
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'---------------------------------------------------------------------------'
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*/
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/**
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* PHPMailer - PHP SMTP email transport class
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* NOTE: Designed for use with PHP version 5 and up
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* @package PHPMailer
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* @author Andy Prevost
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* @author Marcus Bointon
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* @copyright 2004 - 2008 Andy Prevost
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* @author Jim Jagielski
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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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* PHP RFC821 SMTP client
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*
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* Implements all the RFC 821 SMTP commands except TURN which will always return a not implemented error.
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* SMTP also provides some utility methods for sending mail to an SMTP server.
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* @author Chris Ryan
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* @package PHPMailer
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*/
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class SMTP {
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/**
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* SMTP server port
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* @var int
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*/
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public $SMTP_PORT = 25;
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/**
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* SMTP reply line ending (don't change)
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* @var string
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*/
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public $CRLF = "\r\n";
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/**
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* Debug output level; 0 for no output
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* @var int
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*/
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public $do_debug = 0;
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/**
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* Sets the function/method to use for debugging output.
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* Right now we only honor 'echo' or 'error_log'
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* @var string
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*/
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public $Debugoutput = 'echo';
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/**
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* Sets VERP use on/off (default is off)
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* @var bool
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*/
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public $do_verp = false;
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/**
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* Sets the SMTP timeout value for reads, in seconds
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* @var int
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*/
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public $Timeout = 15;
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/**
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* Sets the SMTP timelimit value for reads, in seconds
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* @var int
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*/
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public $Timelimit = 30;
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/**
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* Sets the SMTP PHPMailer Version number
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* @var string
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*/
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public $Version = '5.2.6';
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/////////////////////////////////////////////////
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// PROPERTIES, PRIVATE AND PROTECTED
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/////////////////////////////////////////////////
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/**
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* @var resource The socket to the server
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*/
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private $smtp_conn;
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/**
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* @var string Error message, if any, for the last call
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*/
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private $error;
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/**
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* @var string The reply the server sent to us for HELO
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*/
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private $helo_rply;
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/**
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* Outputs debugging info via user-defined method
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* @param string $str
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*/
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private function edebug($str) {
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if ($this->Debugoutput == 'error_log') {
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error_log($str);
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} else {
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echo $str;
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}
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}
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/**
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* Initialize the class so that the data is in a known state.
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* @access public
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* @return SMTP
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*/
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public function __construct() {
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$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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/////////////////////////////////////////////////
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// CONNECTION FUNCTIONS
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/////////////////////////////////////////////////
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/**
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* Connect to the server specified on the port specified.
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* If the port is not specified use the default SMTP_PORT.
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* If tval is specified then a connection will try and be
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* established with the server for that number of seconds.
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* If tval is not specified the default is 30 seconds to
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* try on the connection.
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*
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* SMTP CODE SUCCESS: 220
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* SMTP CODE FAILURE: 421
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* @access public
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* @param string $host
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* @param int $port
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* @param int $tval
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* @return bool
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*/
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public function Connect($host, $port = 0, $tval = 30) {
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// set the error val to null so there is no confusion
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$this->error = null;
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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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if(empty($port)) {
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$port = $this->SMTP_PORT;
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}
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// connect to the smtp server
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$this->smtp_conn = @fsockopen($host, // the host of the server
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$port, // the port to use
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$errno, // error number if any
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$errstr, // error message if any
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$tval); // give up after ? secs
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// verify we connected properly
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if(empty($this->smtp_conn)) {
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$this->error = array('error' => 'Failed to connect to server',
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'errno' => $errno,
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'errstr' => $errstr);
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if($this->do_debug >= 1) {
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$this->edebug('SMTP -> ERROR: ' . $this->error['error'] . ": $errstr ($errno)" . $this->CRLF . '<br />');
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}
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return false;
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}
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// SMTP server can take longer to respond, give longer timeout for first read
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// Windows does not have support for this timeout function
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if(substr(PHP_OS, 0, 3) != 'WIN') {
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$max = ini_get('max_execution_time');
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if ($max != 0 && $tval > $max) { // don't bother if unlimited
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@set_time_limit($tval);
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}
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stream_set_timeout($this->smtp_conn, $tval, 0);
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}
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// get any announcement
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$announce = $this->get_lines();
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if($this->do_debug >= 2) {
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$this->edebug('SMTP -> FROM SERVER:' . $announce . $this->CRLF . '<br />');
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}
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return true;
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}
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/**
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* Initiate a TLS communication with the server.
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*
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* SMTP CODE 220 Ready to start TLS
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* SMTP CODE 501 Syntax error (no parameters allowed)
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* SMTP CODE 454 TLS not available due to temporary reason
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* @access public
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* @return bool success
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*/
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public function StartTLS() {
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$this->error = null; # to avoid confusion
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if(!$this->connected()) {
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$this->error = array('error' => 'Called StartTLS() without being connected');
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return false;
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}
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$this->client_send('STARTTLS' . $this->CRLF);
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$rply = $this->get_lines();
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$code = substr($rply, 0, 3);
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if($this->do_debug >= 2) {
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$this->edebug('SMTP -> FROM SERVER:' . $rply . $this->CRLF . '<br />');
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}
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if($code != 220) {
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$this->error =
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array('error' => 'STARTTLS not accepted from server',
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'smtp_code' => $code,
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'smtp_msg' => substr($rply, 4));
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if($this->do_debug >= 1) {
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$this->edebug('SMTP -> ERROR: ' . $this->error['error'] . ': ' . $rply . $this->CRLF . '<br />');
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}
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return false;
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}
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// Begin encrypted connection
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if(!stream_socket_enable_crypto($this->smtp_conn, true, STREAM_CRYPTO_METHOD_TLS_CLIENT)) {
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return false;
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}
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return true;
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}
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/**
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* Performs SMTP authentication. Must be run after running the
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* Hello() method. Returns true if successfully authenticated.
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* @access public
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* @param string $username
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* @param string $password
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* @param string $authtype
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* @param string $realm
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* @param string $workstation
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* @return bool
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*/
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public function Authenticate($username, $password, $authtype='LOGIN', $realm='', $workstation='') {
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if (empty($authtype)) {
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$authtype = 'LOGIN';
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}
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switch ($authtype) {
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case 'PLAIN':
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// Start authentication
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$this->client_send('AUTH PLAIN' . $this->CRLF);
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$rply = $this->get_lines();
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$code = substr($rply, 0, 3);
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if($code != 334) {
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$this->error =
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array('error' => 'AUTH not accepted from server',
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'smtp_code' => $code,
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'smtp_msg' => substr($rply, 4));
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if($this->do_debug >= 1) {
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$this->edebug('SMTP -> ERROR: ' . $this->error['error'] . ': ' . $rply . $this->CRLF . '<br />');
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}
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return false;
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}
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// Send encoded username and password
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$this->client_send(base64_encode("\0".$username."\0".$password) . $this->CRLF);
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$rply = $this->get_lines();
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$code = substr($rply, 0, 3);
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if($code != 235) {
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$this->error =
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array('error' => 'Authentication not accepted from server',
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'smtp_code' => $code,
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'smtp_msg' => substr($rply, 4));
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if($this->do_debug >= 1) {
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$this->edebug('SMTP -> ERROR: ' . $this->error['error'] . ': ' . $rply . $this->CRLF . '<br />');
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}
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return false;
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}
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break;
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case 'LOGIN':
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// Start authentication
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$this->client_send('AUTH LOGIN' . $this->CRLF);
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$rply = $this->get_lines();
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$code = substr($rply, 0, 3);
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if($code != 334) {
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$this->error =
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array('error' => 'AUTH not accepted from server',
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'smtp_code' => $code,
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'smtp_msg' => substr($rply, 4));
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if($this->do_debug >= 1) {
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$this->edebug('SMTP -> ERROR: ' . $this->error['error'] . ': ' . $rply . $this->CRLF . '<br />');
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}
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return false;
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}
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// Send encoded username
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$this->client_send(base64_encode($username) . $this->CRLF);
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$rply = $this->get_lines();
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$code = substr($rply, 0, 3);
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if($code != 334) {
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$this->error =
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array('error' => 'Username not accepted from server',
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'smtp_code' => $code,
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'smtp_msg' => substr($rply, 4));
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if($this->do_debug >= 1) {
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$this->edebug('SMTP -> ERROR: ' . $this->error['error'] . ': ' . $rply . $this->CRLF . '<br />');
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}
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return false;
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}
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// Send encoded password
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$this->client_send(base64_encode($password) . $this->CRLF);
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$rply = $this->get_lines();
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$code = substr($rply, 0, 3);
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if($code != 235) {
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$this->error =
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array('error' => 'Password not accepted from server',
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'smtp_code' => $code,
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'smtp_msg' => substr($rply, 4));
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if($this->do_debug >= 1) {
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$this->edebug('SMTP -> ERROR: ' . $this->error['error'] . ': ' . $rply . $this->CRLF . '<br />');
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}
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return false;
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}
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break;
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case 'NTLM':
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/*
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* ntlm_sasl_client.php
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** Bundled with Permission
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**
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** How to telnet in windows: http://technet.microsoft.com/en-us/library/aa995718%28EXCHG.65%29.aspx
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** PROTOCOL Documentation http://curl.haxx.se/rfc/ntlm.html#ntlmSmtpAuthentication
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*/
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require_once 'extras/ntlm_sasl_client.php';
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$temp = new stdClass();
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$ntlm_client = new ntlm_sasl_client_class;
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if(! $ntlm_client->Initialize($temp)){//let's test if every function its available
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$this->error = array('error' => $temp->error);
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if($this->do_debug >= 1) {
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$this->edebug('You need to enable some modules in your php.ini file: ' . $this->error['error'] . $this->CRLF);
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}
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return false;
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}
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$msg1 = $ntlm_client->TypeMsg1($realm, $workstation);//msg1
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$this->client_send('AUTH NTLM ' . base64_encode($msg1) . $this->CRLF);
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$rply = $this->get_lines();
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$code = substr($rply, 0, 3);
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if($code != 334) {
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$this->error =
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array('error' => 'AUTH not accepted from server',
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'smtp_code' => $code,
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'smtp_msg' => substr($rply, 4));
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if($this->do_debug >= 1) {
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$this->edebug('SMTP -> ERROR: ' . $this->error['error'] . ': ' . $rply . $this->CRLF);
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}
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return false;
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}
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$challenge = substr($rply, 3);//though 0 based, there is a white space after the 3 digit number....//msg2
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$challenge = base64_decode($challenge);
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$ntlm_res = $ntlm_client->NTLMResponse(substr($challenge, 24, 8), $password);
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$msg3 = $ntlm_client->TypeMsg3($ntlm_res, $username, $realm, $workstation);//msg3
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// Send encoded username
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$this->client_send(base64_encode($msg3) . $this->CRLF);
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$rply = $this->get_lines();
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$code = substr($rply, 0, 3);
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if($code != 235) {
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$this->error =
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array('error' => 'Could not authenticate',
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'smtp_code' => $code,
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'smtp_msg' => substr($rply, 4));
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if($this->do_debug >= 1) {
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$this->edebug('SMTP -> ERROR: ' . $this->error['error'] . ': ' . $rply . $this->CRLF);
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}
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return false;
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}
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break;
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case 'CRAM-MD5':
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// Start authentication
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$this->client_send('AUTH CRAM-MD5' . $this->CRLF);
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$rply = $this->get_lines();
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$code = substr($rply, 0, 3);
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if($code != 334) {
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$this->error =
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array('error' => 'AUTH not accepted from server',
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'smtp_code' => $code,
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'smtp_msg' => substr($rply, 4));
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if($this->do_debug >= 1) {
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$this->edebug('SMTP -> ERROR: ' . $this->error['error'] . ': ' . $rply . $this->CRLF . '<br />');
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}
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return false;
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}
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// Get the challenge
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$challenge = base64_decode(substr($rply, 4));
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// Build the response
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$response = $username . ' ' . $this->hmac($challenge, $password);
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// Send encoded credentials
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$this->client_send(base64_encode($response) . $this->CRLF);
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$rply = $this->get_lines();
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$code = substr($rply, 0, 3);
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if($code != 334) {
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$this->error =
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array('error' => 'Credentials not accepted from server',
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'smtp_code' => $code,
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'smtp_msg' => substr($rply, 4));
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if($this->do_debug >= 1) {
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$this->edebug('SMTP -> ERROR: ' . $this->error['error'] . ': ' . $rply . $this->CRLF . '<br />');
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}
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return false;
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}
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break;
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}
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return true;
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}
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/**
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* Works like hash_hmac('md5', $data, $key) in case that function is not available
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* @access private
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* @param string $data
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* @param string $key
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* @return string
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*/
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private function hmac($data, $key) {
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if (function_exists('hash_hmac')) {
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return hash_hmac('md5', $data, $key);
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}
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// The following borrowed from http://php.net/manual/en/function.mhash.php#27225
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// RFC 2104 HMAC implementation for php.
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// Creates an md5 HMAC.
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// Eliminates the need to install mhash to compute a HMAC
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// Hacked by Lance Rushing
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$b = 64; // byte length for md5
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if (strlen($key) > $b) {
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$key = pack('H*', md5($key));
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}
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$key = str_pad($key, $b, chr(0x00));
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$ipad = str_pad('', $b, chr(0x36));
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$opad = str_pad('', $b, chr(0x5c));
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$k_ipad = $key ^ $ipad ;
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$k_opad = $key ^ $opad;
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return md5($k_opad . pack('H*', md5($k_ipad . $data)));
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}
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/**
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* Returns true if connected to a server otherwise false
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* @access public
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* @return bool
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*/
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public function Connected() {
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if(!empty($this->smtp_conn)) {
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$sock_status = stream_get_meta_data($this->smtp_conn);
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if($sock_status['eof']) {
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// the socket is valid but we are not connected
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if($this->do_debug >= 1) {
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$this->edebug('SMTP -> NOTICE:' . $this->CRLF . 'EOF caught while checking if connected');
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}
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$this->Close();
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return false;
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}
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return true; // everything looks good
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}
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return false;
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}
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|
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/**
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|
* Closes the socket and cleans up the state of the class.
|
|
* It is not considered good to use this function without
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* first trying to use QUIT.
|
|
* @access public
|
|
* @return void
|
|
*/
|
|
public function Close() {
|
|
$this->error = null; // so there is no confusion
|
|
$this->helo_rply = null;
|
|
if(!empty($this->smtp_conn)) {
|
|
// close the connection and cleanup
|
|
fclose($this->smtp_conn);
|
|
$this->smtp_conn = 0;
|
|
}
|
|
}
|
|
|
|
/////////////////////////////////////////////////
|
|
// SMTP COMMANDS
|
|
/////////////////////////////////////////////////
|
|
|
|
/**
|
|
* Issues a data command and sends the msg_data to the server
|
|
* finializing the mail transaction. $msg_data is the message
|
|
* that is to be send with the headers. Each header needs to be
|
|
* on a single line followed by a <CRLF> with the message headers
|
|
* and the message body being seperated by and additional <CRLF>.
|
|
*
|
|
* Implements rfc 821: DATA <CRLF>
|
|
*
|
|
* SMTP CODE INTERMEDIATE: 354
|
|
* [data]
|
|
* <CRLF>.<CRLF>
|
|
* SMTP CODE SUCCESS: 250
|
|
* SMTP CODE FAILURE: 552, 554, 451, 452
|
|
* SMTP CODE FAILURE: 451, 554
|
|
* SMTP CODE ERROR : 500, 501, 503, 421
|
|
* @access public
|
|
* @param string $msg_data
|
|
* @return bool
|
|
*/
|
|
public function Data($msg_data) {
|
|
$this->error = null; // so no confusion is caused
|
|
|
|
if(!$this->connected()) {
|
|
$this->error = array(
|
|
'error' => 'Called Data() without being connected');
|
|
return false;
|
|
}
|
|
|
|
$this->client_send('DATA' . $this->CRLF);
|
|
|
|
$rply = $this->get_lines();
|
|
$code = substr($rply, 0, 3);
|
|
|
|
if($this->do_debug >= 2) {
|
|
$this->edebug('SMTP -> FROM SERVER:' . $rply . $this->CRLF . '<br />');
|
|
}
|
|
|
|
if($code != 354) {
|
|
$this->error =
|
|
array('error' => 'DATA command not accepted from server',
|
|
'smtp_code' => $code,
|
|
'smtp_msg' => substr($rply, 4));
|
|
if($this->do_debug >= 1) {
|
|
$this->edebug('SMTP -> ERROR: ' . $this->error['error'] . ': ' . $rply . $this->CRLF . '<br />');
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/* the server is ready to accept data!
|
|
* according to rfc 821 we should not send more than 1000
|
|
* including the CRLF
|
|
* characters on a single line so we will break the data up
|
|
* into lines by \r and/or \n then if needed we will break
|
|
* each of those into smaller lines to fit within the limit.
|
|
* in addition we will be looking for lines that start with
|
|
* a period '.' and append and additional period '.' to that
|
|
* line. NOTE: this does not count towards limit.
|
|
*/
|
|
|
|
// normalize the line breaks so we know the explode works
|
|
$msg_data = str_replace("\r\n", "\n", $msg_data);
|
|
$msg_data = str_replace("\r", "\n", $msg_data);
|
|
$lines = explode("\n", $msg_data);
|
|
|
|
/* we need to find a good way to determine is headers are
|
|
* in the msg_data or if it is a straight msg body
|
|
* currently I am assuming rfc 822 definitions of msg headers
|
|
* and if the first field of the first line (':' sperated)
|
|
* does not contain a space then it _should_ be a header
|
|
* and we can process all lines before a blank "" line as
|
|
* headers.
|
|
*/
|
|
|
|
$field = substr($lines[0], 0, strpos($lines[0], ':'));
|
|
$in_headers = false;
|
|
if(!empty($field) && !strstr($field, ' ')) {
|
|
$in_headers = true;
|
|
}
|
|
|
|
$max_line_length = 998; // used below; set here for ease in change
|
|
|
|
while(list(, $line) = @each($lines)) {
|
|
$lines_out = null;
|
|
if($line == '' && $in_headers) {
|
|
$in_headers = false;
|
|
}
|
|
// ok we need to break this line up into several smaller lines
|
|
while(strlen($line) > $max_line_length) {
|
|
$pos = strrpos(substr($line, 0, $max_line_length), ' ');
|
|
|
|
// Patch to fix DOS attack
|
|
if(!$pos) {
|
|
$pos = $max_line_length - 1;
|
|
$lines_out[] = substr($line, 0, $pos);
|
|
$line = substr($line, $pos);
|
|
} else {
|
|
$lines_out[] = substr($line, 0, $pos);
|
|
$line = substr($line, $pos + 1);
|
|
}
|
|
|
|
/* if processing headers add a LWSP-char to the front of new line
|
|
* rfc 822 on long msg headers
|
|
*/
|
|
if($in_headers) {
|
|
$line = "\t" . $line;
|
|
}
|
|
}
|
|
$lines_out[] = $line;
|
|
|
|
// send the lines to the server
|
|
while(list(, $line_out) = @each($lines_out)) {
|
|
if(strlen($line_out) > 0)
|
|
{
|
|
if(substr($line_out, 0, 1) == '.') {
|
|
$line_out = '.' . $line_out;
|
|
}
|
|
}
|
|
$this->client_send($line_out . $this->CRLF);
|
|
}
|
|
}
|
|
|
|
// message data has been sent
|
|
$this->client_send($this->CRLF . '.' . $this->CRLF);
|
|
|
|
$rply = $this->get_lines();
|
|
$code = substr($rply, 0, 3);
|
|
|
|
if($this->do_debug >= 2) {
|
|
$this->edebug('SMTP -> FROM SERVER:' . $rply . $this->CRLF . '<br />');
|
|
}
|
|
|
|
if($code != 250) {
|
|
$this->error =
|
|
array('error' => 'DATA not accepted from server',
|
|
'smtp_code' => $code,
|
|
'smtp_msg' => substr($rply, 4));
|
|
if($this->do_debug >= 1) {
|
|
$this->edebug('SMTP -> ERROR: ' . $this->error['error'] . ': ' . $rply . $this->CRLF . '<br />');
|
|
}
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Sends the HELO command to the smtp server.
|
|
* This makes sure that we and the server are in
|
|
* the same known state.
|
|
*
|
|
* Implements from rfc 821: HELO <SP> <domain> <CRLF>
|
|
*
|
|
* SMTP CODE SUCCESS: 250
|
|
* SMTP CODE ERROR : 500, 501, 504, 421
|
|
* @access public
|
|
* @param string $host
|
|
* @return bool
|
|
*/
|
|
public function Hello($host = '') {
|
|
$this->error = null; // so no confusion is caused
|
|
|
|
if(!$this->connected()) {
|
|
$this->error = array(
|
|
'error' => 'Called Hello() without being connected');
|
|
return false;
|
|
}
|
|
|
|
// if hostname for HELO was not specified send default
|
|
if(empty($host)) {
|
|
// determine appropriate default to send to server
|
|
$host = 'localhost';
|
|
}
|
|
|
|
// Send extended hello first (RFC 2821)
|
|
if(!$this->SendHello('EHLO', $host)) {
|
|
if(!$this->SendHello('HELO', $host)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Sends a HELO/EHLO command.
|
|
* @access private
|
|
* @param string $hello
|
|
* @param string $host
|
|
* @return bool
|
|
*/
|
|
private function SendHello($hello, $host) {
|
|
$this->client_send($hello . ' ' . $host . $this->CRLF);
|
|
|
|
$rply = $this->get_lines();
|
|
$code = substr($rply, 0, 3);
|
|
|
|
if($this->do_debug >= 2) {
|
|
$this->edebug('SMTP -> FROM SERVER: ' . $rply . $this->CRLF . '<br />');
|
|
}
|
|
|
|
if($code != 250) {
|
|
$this->error =
|
|
array('error' => $hello . ' not accepted from server',
|
|
'smtp_code' => $code,
|
|
'smtp_msg' => substr($rply, 4));
|
|
if($this->do_debug >= 1) {
|
|
$this->edebug('SMTP -> ERROR: ' . $this->error['error'] . ': ' . $rply . $this->CRLF . '<br />');
|
|
}
|
|
return false;
|
|
}
|
|
|
|
$this->helo_rply = $rply;
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Starts a mail transaction from the email address specified in
|
|
* $from. Returns true if successful or false otherwise. If True
|
|
* the mail transaction is started and then one or more Recipient
|
|
* commands may be called followed by a Data command.
|
|
*
|
|
* Implements rfc 821: MAIL <SP> FROM:<reverse-path> <CRLF>
|
|
*
|
|
* SMTP CODE SUCCESS: 250
|
|
* SMTP CODE SUCCESS: 552, 451, 452
|
|
* SMTP CODE SUCCESS: 500, 501, 421
|
|
* @access public
|
|
* @param string $from
|
|
* @return bool
|
|
*/
|
|
public function Mail($from) {
|
|
$this->error = null; // so no confusion is caused
|
|
|
|
if(!$this->connected()) {
|
|
$this->error = array(
|
|
'error' => 'Called Mail() without being connected');
|
|
return false;
|
|
}
|
|
|
|
$useVerp = ($this->do_verp ? ' XVERP' : '');
|
|
$this->client_send('MAIL FROM:<' . $from . '>' . $useVerp . $this->CRLF);
|
|
|
|
$rply = $this->get_lines();
|
|
$code = substr($rply, 0, 3);
|
|
|
|
if($this->do_debug >= 2) {
|
|
$this->edebug('SMTP -> FROM SERVER:' . $rply . $this->CRLF . '<br />');
|
|
}
|
|
|
|
if($code != 250) {
|
|
$this->error =
|
|
array('error' => 'MAIL not accepted from server',
|
|
'smtp_code' => $code,
|
|
'smtp_msg' => substr($rply, 4));
|
|
if($this->do_debug >= 1) {
|
|
$this->edebug('SMTP -> ERROR: ' . $this->error['error'] . ': ' . $rply . $this->CRLF . '<br />');
|
|
}
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Sends the quit command to the server and then closes the socket
|
|
* if there is no error or the $close_on_error argument is true.
|
|
*
|
|
* Implements from rfc 821: QUIT <CRLF>
|
|
*
|
|
* SMTP CODE SUCCESS: 221
|
|
* SMTP CODE ERROR : 500
|
|
* @access public
|
|
* @param bool $close_on_error
|
|
* @return bool
|
|
*/
|
|
public function Quit($close_on_error = true) {
|
|
$this->error = null; // so there is no confusion
|
|
|
|
if(!$this->connected()) {
|
|
$this->error = array(
|
|
'error' => 'Called Quit() without being connected');
|
|
return false;
|
|
}
|
|
|
|
// send the quit command to the server
|
|
$this->client_send('quit' . $this->CRLF);
|
|
|
|
// get any good-bye messages
|
|
$byemsg = $this->get_lines();
|
|
|
|
if($this->do_debug >= 2) {
|
|
$this->edebug('SMTP -> FROM SERVER:' . $byemsg . $this->CRLF . '<br />');
|
|
}
|
|
|
|
$rval = true;
|
|
$e = null;
|
|
|
|
$code = substr($byemsg, 0, 3);
|
|
if($code != 221) {
|
|
// use e as a tmp var cause Close will overwrite $this->error
|
|
$e = array('error' => 'SMTP server rejected quit command',
|
|
'smtp_code' => $code,
|
|
'smtp_rply' => substr($byemsg, 4));
|
|
$rval = false;
|
|
if($this->do_debug >= 1) {
|
|
$this->edebug('SMTP -> ERROR: ' . $e['error'] . ': ' . $byemsg . $this->CRLF . '<br />');
|
|
}
|
|
}
|
|
|
|
if(empty($e) || $close_on_error) {
|
|
$this->Close();
|
|
}
|
|
|
|
return $rval;
|
|
}
|
|
|
|
/**
|
|
* Sends the command RCPT to the SMTP server with the TO: argument of $to.
|
|
* Returns true if the recipient was accepted false if it was rejected.
|
|
*
|
|
* Implements from rfc 821: RCPT <SP> TO:<forward-path> <CRLF>
|
|
*
|
|
* SMTP CODE SUCCESS: 250, 251
|
|
* SMTP CODE FAILURE: 550, 551, 552, 553, 450, 451, 452
|
|
* SMTP CODE ERROR : 500, 501, 503, 421
|
|
* @access public
|
|
* @param string $to
|
|
* @return bool
|
|
*/
|
|
public function Recipient($to) {
|
|
$this->error = null; // so no confusion is caused
|
|
|
|
if(!$this->connected()) {
|
|
$this->error = array(
|
|
'error' => 'Called Recipient() without being connected');
|
|
return false;
|
|
}
|
|
|
|
$this->client_send('RCPT TO:<' . $to . '>' . $this->CRLF);
|
|
|
|
$rply = $this->get_lines();
|
|
$code = substr($rply, 0, 3);
|
|
|
|
if($this->do_debug >= 2) {
|
|
$this->edebug('SMTP -> FROM SERVER:' . $rply . $this->CRLF . '<br />');
|
|
}
|
|
|
|
if($code != 250 && $code != 251) {
|
|
$this->error =
|
|
array('error' => 'RCPT not accepted from server',
|
|
'smtp_code' => $code,
|
|
'smtp_msg' => substr($rply, 4));
|
|
if($this->do_debug >= 1) {
|
|
$this->edebug('SMTP -> ERROR: ' . $this->error['error'] . ': ' . $rply . $this->CRLF . '<br />');
|
|
}
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Sends the RSET command to abort and transaction that is
|
|
* currently in progress. Returns true if successful false
|
|
* otherwise.
|
|
*
|
|
* Implements rfc 821: RSET <CRLF>
|
|
*
|
|
* SMTP CODE SUCCESS: 250
|
|
* SMTP CODE ERROR : 500, 501, 504, 421
|
|
* @access public
|
|
* @return bool
|
|
*/
|
|
public function Reset() {
|
|
$this->error = null; // so no confusion is caused
|
|
|
|
if(!$this->connected()) {
|
|
$this->error = array('error' => 'Called Reset() without being connected');
|
|
return false;
|
|
}
|
|
|
|
$this->client_send('RSET' . $this->CRLF);
|
|
|
|
$rply = $this->get_lines();
|
|
$code = substr($rply, 0, 3);
|
|
|
|
if($this->do_debug >= 2) {
|
|
$this->edebug('SMTP -> FROM SERVER:' . $rply . $this->CRLF . '<br />');
|
|
}
|
|
|
|
if($code != 250) {
|
|
$this->error =
|
|
array('error' => 'RSET failed',
|
|
'smtp_code' => $code,
|
|
'smtp_msg' => substr($rply, 4));
|
|
if($this->do_debug >= 1) {
|
|
$this->edebug('SMTP -> ERROR: ' . $this->error['error'] . ': ' . $rply . $this->CRLF . '<br />');
|
|
}
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Starts a mail transaction from the email address specified in
|
|
* $from. Returns true if successful or false otherwise. If True
|
|
* the mail transaction is started and then one or more Recipient
|
|
* commands may be called followed by a Data command. This command
|
|
* will send the message to the users terminal if they are logged
|
|
* in and send them an email.
|
|
*
|
|
* Implements rfc 821: SAML <SP> FROM:<reverse-path> <CRLF>
|
|
*
|
|
* SMTP CODE SUCCESS: 250
|
|
* SMTP CODE SUCCESS: 552, 451, 452
|
|
* SMTP CODE SUCCESS: 500, 501, 502, 421
|
|
* @access public
|
|
* @param string $from
|
|
* @return bool
|
|
*/
|
|
public function SendAndMail($from) {
|
|
$this->error = null; // so no confusion is caused
|
|
|
|
if(!$this->connected()) {
|
|
$this->error = array(
|
|
'error' => 'Called SendAndMail() without being connected');
|
|
return false;
|
|
}
|
|
|
|
$this->client_send('SAML FROM:' . $from . $this->CRLF);
|
|
|
|
$rply = $this->get_lines();
|
|
$code = substr($rply, 0, 3);
|
|
|
|
if($this->do_debug >= 2) {
|
|
$this->edebug('SMTP -> FROM SERVER:' . $rply . $this->CRLF . '<br />');
|
|
}
|
|
|
|
if($code != 250) {
|
|
$this->error =
|
|
array('error' => 'SAML not accepted from server',
|
|
'smtp_code' => $code,
|
|
'smtp_msg' => substr($rply, 4));
|
|
if($this->do_debug >= 1) {
|
|
$this->edebug('SMTP -> ERROR: ' . $this->error['error'] . ': ' . $rply . $this->CRLF . '<br />');
|
|
}
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* This is an optional command for SMTP that this class does not
|
|
* support. This method is here to make the RFC821 Definition
|
|
* complete for this class and __may__ be implimented in the future
|
|
*
|
|
* Implements from rfc 821: TURN <CRLF>
|
|
*
|
|
* SMTP CODE SUCCESS: 250
|
|
* SMTP CODE FAILURE: 502
|
|
* SMTP CODE ERROR : 500, 503
|
|
* @access public
|
|
* @return bool
|
|
*/
|
|
public function Turn() {
|
|
$this->error = array('error' => 'This method, TURN, of the SMTP '.
|
|
'is not implemented');
|
|
if($this->do_debug >= 1) {
|
|
$this->edebug('SMTP -> NOTICE: ' . $this->error['error'] . $this->CRLF . '<br />');
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Sends data to the server
|
|
* @param string $data
|
|
* @access public
|
|
* @return Integer number of bytes sent to the server or FALSE on error
|
|
*/
|
|
public function client_send($data) {
|
|
if ($this->do_debug >= 1) {
|
|
$this->edebug("CLIENT -> SMTP: $data" . $this->CRLF . '<br />');
|
|
}
|
|
return fwrite($this->smtp_conn, $data);
|
|
}
|
|
|
|
/**
|
|
* Get the current error
|
|
* @access public
|
|
* @return array
|
|
*/
|
|
public function getError() {
|
|
return $this->error;
|
|
}
|
|
|
|
/////////////////////////////////////////////////
|
|
// INTERNAL FUNCTIONS
|
|
/////////////////////////////////////////////////
|
|
|
|
/**
|
|
* Read in as many lines as possible
|
|
* either before eof or socket timeout occurs on the operation.
|
|
* With SMTP we can tell if we have more lines to read if the
|
|
* 4th character is '-' symbol. If it is a space then we don't
|
|
* need to read anything else.
|
|
* @access private
|
|
* @return string
|
|
*/
|
|
private function get_lines() {
|
|
$data = '';
|
|
$endtime = 0;
|
|
/* If for some reason the fp is bad, don't inf loop */
|
|
if (!is_resource($this->smtp_conn)) {
|
|
return $data;
|
|
}
|
|
stream_set_timeout($this->smtp_conn, $this->Timeout);
|
|
if ($this->Timelimit > 0) {
|
|
$endtime = time() + $this->Timelimit;
|
|
}
|
|
while(is_resource($this->smtp_conn) && !feof($this->smtp_conn)) {
|
|
$str = @fgets($this->smtp_conn, 515);
|
|
if($this->do_debug >= 4) {
|
|
$this->edebug("SMTP -> get_lines(): \$data was \"$data\"" . $this->CRLF . '<br />');
|
|
$this->edebug("SMTP -> get_lines(): \$str is \"$str\"" . $this->CRLF . '<br />');
|
|
}
|
|
$data .= $str;
|
|
if($this->do_debug >= 4) {
|
|
$this->edebug("SMTP -> get_lines(): \$data is \"$data\"" . $this->CRLF . '<br />');
|
|
}
|
|
// if 4th character is a space, we are done reading, break the loop
|
|
if(substr($str, 3, 1) == ' ') { break; }
|
|
// Timed-out? Log and break
|
|
$info = stream_get_meta_data($this->smtp_conn);
|
|
if ($info['timed_out']) {
|
|
if($this->do_debug >= 4) {
|
|
$this->edebug('SMTP -> get_lines(): timed-out (' . $this->Timeout . ' seconds) <br />');
|
|
}
|
|
break;
|
|
}
|
|
// Now check if reads took too long
|
|
if ($endtime) {
|
|
if (time() > $endtime) {
|
|
if($this->do_debug >= 4) {
|
|
$this->edebug('SMTP -> get_lines(): timelimit reached (' . $this->Timelimit . ' seconds) <br />');
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return $data;
|
|
}
|
|
|
|
}
|