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cops/resources/PHPMailer/class.smtp.php

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<?php
/*~ class.smtp.php
.---------------------------------------------------------------------------.
| Software: PHPMailer - PHP email class |
| Version: 5.2.6 |
| Site: https://github.com/PHPMailer/PHPMailer/ |
| ------------------------------------------------------------------------- |
| Admins: Marcus Bointon |
| Admins: Jim Jagielski |
| Authors: Andy Prevost (codeworxtech) codeworxtech@users.sourceforge.net |
| : Marcus Bointon (coolbru) phpmailer@synchromedia.co.uk |
| : Jim Jagielski (jimjag) jimjag@gmail.com |
| Founder: Brent R. Matzelle (original founder) |
| Copyright (c) 2010-2012, Jim Jagielski. All Rights Reserved. |
| Copyright (c) 2004-2009, Andy Prevost. All Rights Reserved. |
| Copyright (c) 2001-2003, Brent R. Matzelle |
| ------------------------------------------------------------------------- |
| License: Distributed under the Lesser General Public License (LGPL) |
| http://www.gnu.org/copyleft/lesser.html |
| This program is distributed in the hope that it will be useful - WITHOUT |
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| FITNESS FOR A PARTICULAR PURPOSE. |
'---------------------------------------------------------------------------'
*/
/**
* PHPMailer - PHP SMTP email transport class
* NOTE: Designed for use with PHP version 5 and up
* @package PHPMailer
* @author Andy Prevost
* @author Marcus Bointon
* @copyright 2004 - 2008 Andy Prevost
* @author Jim Jagielski
* @copyright 2010 - 2012 Jim Jagielski
* @license http://www.gnu.org/copyleft/lesser.html Distributed under the Lesser General Public License (LGPL)
*/
/**
* PHP RFC821 SMTP client
*
* Implements all the RFC 821 SMTP commands except TURN which will always return a not implemented error.
* SMTP also provides some utility methods for sending mail to an SMTP server.
* @author Chris Ryan
* @package PHPMailer
*/
class SMTP {
/**
* SMTP server port
* @var int
*/
public $SMTP_PORT = 25;
/**
* SMTP reply line ending (don't change)
* @var string
*/
public $CRLF = "\r\n";
/**
* Debug output level; 0 for no output
* @var int
*/
public $do_debug = 0;
/**
* Sets the function/method to use for debugging output.
* Right now we only honor 'echo' or 'error_log'
* @var string
*/
public $Debugoutput = 'echo';
/**
* Sets VERP use on/off (default is off)
* @var bool
*/
public $do_verp = false;
/**
* Sets the SMTP timeout value for reads, in seconds
* @var int
*/
public $Timeout = 15;
/**
* Sets the SMTP timelimit value for reads, in seconds
* @var int
*/
public $Timelimit = 30;
/**
* Sets the SMTP PHPMailer Version number
* @var string
*/
public $Version = '5.2.6';
/////////////////////////////////////////////////
// PROPERTIES, PRIVATE AND PROTECTED
/////////////////////////////////////////////////
/**
* @var resource The socket to the server
*/
private $smtp_conn;
/**
* @var string Error message, if any, for the last call
*/
private $error;
/**
* @var string The reply the server sent to us for HELO
*/
private $helo_rply;
/**
* Outputs debugging info via user-defined method
* @param string $str
*/
private function edebug($str) {
if ($this->Debugoutput == 'error_log') {
error_log($str);
} else {
echo $str;
}
}
/**
* Initialize the class so that the data is in a known state.
* @access public
* @return SMTP
*/
public function __construct() {
$this->smtp_conn = 0;
$this->error = null;
$this->helo_rply = null;
$this->do_debug = 0;
}
/////////////////////////////////////////////////
// CONNECTION FUNCTIONS
/////////////////////////////////////////////////
/**
* Connect to the server specified on the port specified.
* If the port is not specified use the default SMTP_PORT.
* If tval is specified then a connection will try and be
* established with the server for that number of seconds.
* If tval is not specified the default is 30 seconds to
* try on the connection.
*
* SMTP CODE SUCCESS: 220
* SMTP CODE FAILURE: 421
* @access public
* @param string $host
* @param int $port
* @param int $tval
* @return bool
*/
public function Connect($host, $port = 0, $tval = 30) {
// set the error val to null so there is no confusion
$this->error = null;
// make sure we are __not__ connected
if($this->connected()) {
// already connected, generate error
$this->error = array('error' => 'Already connected to a server');
return false;
}
if(empty($port)) {
$port = $this->SMTP_PORT;
}
// connect to the smtp server
$this->smtp_conn = @fsockopen($host, // the host of the server
$port, // the port to use
$errno, // error number if any
$errstr, // error message if any
$tval); // give up after ? secs
// verify we connected properly
if(empty($this->smtp_conn)) {
$this->error = array('error' => 'Failed to connect to server',
'errno' => $errno,
'errstr' => $errstr);
if($this->do_debug >= 1) {
$this->edebug('SMTP -> ERROR: ' . $this->error['error'] . ": $errstr ($errno)" . $this->CRLF . '<br />');
}
return false;
}
// SMTP server can take longer to respond, give longer timeout for first read
// Windows does not have support for this timeout function
if(substr(PHP_OS, 0, 3) != 'WIN') {
$max = ini_get('max_execution_time');
if ($max != 0 && $tval > $max) { // don't bother if unlimited
@set_time_limit($tval);
}
stream_set_timeout($this->smtp_conn, $tval, 0);
}
// get any announcement
$announce = $this->get_lines();
if($this->do_debug >= 2) {
$this->edebug('SMTP -> FROM SERVER:' . $announce . $this->CRLF . '<br />');
}
return true;
}
/**
* Initiate a TLS communication with the server.
*
* SMTP CODE 220 Ready to start TLS
* SMTP CODE 501 Syntax error (no parameters allowed)
* SMTP CODE 454 TLS not available due to temporary reason
* @access public
* @return bool success
*/
public function StartTLS() {
$this->error = null; # to avoid confusion
if(!$this->connected()) {
$this->error = array('error' => 'Called StartTLS() without being connected');
return false;
}
$this->client_send('STARTTLS' . $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 != 220) {
$this->error =
array('error' => 'STARTTLS 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 . $this->CRLF . '<br />');
}
return false;
}
// Begin encrypted connection
if(!stream_socket_enable_crypto($this->smtp_conn, true, STREAM_CRYPTO_METHOD_TLS_CLIENT)) {
return false;
}
return true;
}
/**
* Performs SMTP authentication. Must be run after running the
* Hello() method. Returns true if successfully authenticated.
* @access public
* @param string $username
* @param string $password
* @param string $authtype
* @param string $realm
* @param string $workstation
* @return bool
*/
public function Authenticate($username, $password, $authtype='LOGIN', $realm='', $workstation='') {
if (empty($authtype)) {
$authtype = 'LOGIN';
}
switch ($authtype) {
case 'PLAIN':
// Start authentication
$this->client_send('AUTH PLAIN' . $this->CRLF);
$rply = $this->get_lines();
$code = substr($rply, 0, 3);
if($code != 334) {
$this->error =
array('error' => 'AUTH 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;
}
// Send encoded username and password
$this->client_send(base64_encode("\0".$username."\0".$password) . $this->CRLF);
$rply = $this->get_lines();
$code = substr($rply, 0, 3);
if($code != 235) {
$this->error =
array('error' => 'Authentication 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;
}
break;
case 'LOGIN':
// Start authentication
$this->client_send('AUTH LOGIN' . $this->CRLF);
$rply = $this->get_lines();
$code = substr($rply, 0, 3);
if($code != 334) {
$this->error =
array('error' => 'AUTH 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;
}
// Send encoded username
$this->client_send(base64_encode($username) . $this->CRLF);
$rply = $this->get_lines();
$code = substr($rply, 0, 3);
if($code != 334) {
$this->error =
array('error' => 'Username 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;
}
// Send encoded password
$this->client_send(base64_encode($password) . $this->CRLF);
$rply = $this->get_lines();
$code = substr($rply, 0, 3);
if($code != 235) {
$this->error =
array('error' => 'Password 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;
}
break;
case 'NTLM':
/*
* ntlm_sasl_client.php
** Bundled with Permission
**
** How to telnet in windows: http://technet.microsoft.com/en-us/library/aa995718%28EXCHG.65%29.aspx
** PROTOCOL Documentation http://curl.haxx.se/rfc/ntlm.html#ntlmSmtpAuthentication
*/
require_once 'extras/ntlm_sasl_client.php';
$temp = new stdClass();
$ntlm_client = new ntlm_sasl_client_class;
if(! $ntlm_client->Initialize($temp)){//let's test if every function its available
$this->error = array('error' => $temp->error);
if($this->do_debug >= 1) {
$this->edebug('You need to enable some modules in your php.ini file: ' . $this->error['error'] . $this->CRLF);
}
return false;
}
$msg1 = $ntlm_client->TypeMsg1($realm, $workstation);//msg1
$this->client_send('AUTH NTLM ' . base64_encode($msg1) . $this->CRLF);
$rply = $this->get_lines();
$code = substr($rply, 0, 3);
if($code != 334) {
$this->error =
array('error' => 'AUTH 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);
}
return false;
}
$challenge = substr($rply, 3);//though 0 based, there is a white space after the 3 digit number....//msg2
$challenge = base64_decode($challenge);
$ntlm_res = $ntlm_client->NTLMResponse(substr($challenge, 24, 8), $password);
$msg3 = $ntlm_client->TypeMsg3($ntlm_res, $username, $realm, $workstation);//msg3
// Send encoded username
$this->client_send(base64_encode($msg3) . $this->CRLF);
$rply = $this->get_lines();
$code = substr($rply, 0, 3);
if($code != 235) {
$this->error =
array('error' => 'Could not authenticate',
'smtp_code' => $code,
'smtp_msg' => substr($rply, 4));
if($this->do_debug >= 1) {
$this->edebug('SMTP -> ERROR: ' . $this->error['error'] . ': ' . $rply . $this->CRLF);
}
return false;
}
break;
case 'CRAM-MD5':
// Start authentication
$this->client_send('AUTH CRAM-MD5' . $this->CRLF);
$rply = $this->get_lines();
$code = substr($rply, 0, 3);
if($code != 334) {
$this->error =
array('error' => 'AUTH 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;
}
// Get the challenge
$challenge = base64_decode(substr($rply, 4));
// Build the response
$response = $username . ' ' . $this->hmac($challenge, $password);
// Send encoded credentials
$this->client_send(base64_encode($response) . $this->CRLF);
$rply = $this->get_lines();
$code = substr($rply, 0, 3);
if($code != 334) {
$this->error =
array('error' => 'Credentials 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;
}
break;
}
return true;
}
/**
* Works like hash_hmac('md5', $data, $key) in case that function is not available
* @access private
* @param string $data
* @param string $key
* @return string
*/
private function hmac($data, $key) {
if (function_exists('hash_hmac')) {
return hash_hmac('md5', $data, $key);
}
// The following borrowed from http://php.net/manual/en/function.mhash.php#27225
// RFC 2104 HMAC implementation for php.
// Creates an md5 HMAC.
// Eliminates the need to install mhash to compute a HMAC
// Hacked by Lance Rushing
$b = 64; // byte length for md5
if (strlen($key) > $b) {
$key = pack('H*', md5($key));
}
$key = str_pad($key, $b, chr(0x00));
$ipad = str_pad('', $b, chr(0x36));
$opad = str_pad('', $b, chr(0x5c));
$k_ipad = $key ^ $ipad ;
$k_opad = $key ^ $opad;
return md5($k_opad . pack('H*', md5($k_ipad . $data)));
}
/**
* Returns true if connected to a server otherwise false
* @access public
* @return bool
*/
public function Connected() {
if(!empty($this->smtp_conn)) {
$sock_status = stream_get_meta_data($this->smtp_conn);
if($sock_status['eof']) {
// the socket is valid but we are not connected
if($this->do_debug >= 1) {
$this->edebug('SMTP -> NOTICE:' . $this->CRLF . 'EOF caught while checking if connected');
}
$this->Close();
return false;
}
return true; // everything looks good
}
return false;
}
/**
* Closes the socket and cleans up the state of the class.
* It is not considered good to use this function without
* 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;
}
}
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