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<?php

/*~ class.smtp.php

.---------------------------------------------------------------------------.

|  Software: PHPMailer - PHP email class                                    |

|   Version: 5.1                                                            |

|   Contact: via sourceforge.net support pages (also www.codeworxtech.com)  |

|      Info: http://phpmailer.sourceforge.net                               |

|   Support: http://sourceforge.net/projects/phpmailer/                     |

| ------------------------------------------------------------------------- |

|     Admin: Andy Prevost (project admininistrator)                         |

|   Authors: Andy Prevost (codeworxtech) codeworxtech@users.sourceforge.net |

|          : Marcus Bointon (coolbru) coolbru@users.sourceforge.net         |

|   Founder: Brent R. Matzelle (original founder)                           |

| ------------------------------------------------------------------------- |

|   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.                                         |

| ------------------------------------------------------------------------- |

| We offer a number of paid services (www.codeworxtech.com):                |

| - Web Hosting on highly optimized fast and secure servers                 |

| - Technology Consulting                                                   |

| - Oursourcing (highly qualified programmers and graphic designers)        |

'---------------------------------------------------------------------------'

/**

* PHPMailer - PHP SMTP email transport class

* NOTE: Designed for use with PHP version 5 and up

* @package PHPMailer

* @author Andy Prevost

* @author Marcus Bointon

* @license http://www.gnu.org/copyleft/lesser.html Distributed under the Lesser General Public License (LGPL)

* @version $Id: class.smtp.php 444 2009-05-05 11:22:26Z coolbru $

/**

* SMTP is rfc 821 compliant and 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.

* original author: Chris Ryan

class SMTP {

/**

*  SMTP server port

*  @var int

public $SMTP_PORT = 25;

/**

*  SMTP reply line ending

*  @var string

public $CRLF = "\r\n";

/**

*  Sets whether debugging is turned on

*  @var bool

public $do_debug;       // the level of debug to perform

/**

*  Sets VERP use on/off (default is off)

*  @var bool

public $do_verp = false;

/////////////////////////////////////////////////

// PROPERTIES, PRIVATE AND PROTECTED

/////////////////////////////////////////////////

private $smtp_conn; // the socket to the server

private $error;     // error if any on the last call

private $helo_rply; // the reply the server sent to us for HELO

/**

* Initialize the class so that the data is in a known state.

* @access public

* @return void

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

* @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) {

echo "SMTP -> ERROR: " . $this->error["error"] . ": $errstr ($errno)" . $this->CRLF . ' ';

}

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")

socket_set_timeout($this->smtp_conn, $tval, 0);

// get any announcement

$announce = $this->get_lines();

if($this->do_debug >= 2) {

echo "SMTP -> FROM SERVER:" . $announce . $this->CRLF . ' ';

}

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;

}

fputs($this->smtp_conn,"STARTTLS" . $this->CRLF);

$rply = $this->get_lines();

$code = substr($rply,0,3);

if($this->do_debug >= 2) {

echo "SMTP -> FROM SERVER:" . $rply . $this->CRLF . ' ';

}

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) {

echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF . ' ';

}

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

* @return bool

public function Authenticate($username, $password) {

// Start authentication

fputs($this->smtp_conn,"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) {

echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF . ' ';

}

return false;

}

// Send encoded username

fputs($this->smtp_conn, base64_encode($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) {

echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF . ' ';

}

return false;

}

// Send encoded password

fputs($this->smtp_conn, base64_encode($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) {

echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF . ' ';

}

return false;

}

return true;

}

/**

* Returns true if connected to a server otherwise false

* @access public

* @return bool

public function Connected() {

if(!empty($this->smtp_conn)) {

$sock_status = socket_get_status($this->smtp_conn);

if($sock_status["eof"]) {

// the socket is valid but we are not connected

if($this->do_debug >= 1) {

echo "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

* @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;

}

fputs($this->smtp_conn,"DATA" . $this->CRLF);

$rply = $this->get_lines();

$code = substr($rply,0,3);

if($this->do_debug >= 2) {

echo "SMTP -> FROM SERVER:" . $rply . $this->CRLF . ' ';

}

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) {

echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF . ' ';

}

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;

}

fputs($this->smtp_conn,$line_out . $this->CRLF);

}

// message data has been sent

fputs($this->smtp_conn, $this->CRLF . "." . $this->CRLF);

$rply = $this->get_lines();

$code = substr($rply,0,3);

if($this->do_debug >= 2) {

echo "SMTP -> FROM SERVER:" . $rply . $this->CRLF . ' ';

}

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) {

echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF . ' ';

}

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

* @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

* @return bool

private function SendHello($hello, $host) {

fputs($this->smtp_conn, $hello . " " . $host . $this->CRLF);

$rply = $this->get_lines();

$code = substr($rply,0,3);

if($this->do_debug >= 2) {

echo "SMTP -> FROM SERVER: " . $rply . $this->CRLF . ' ';

}

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) {

echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF . ' ';

}

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

* @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" : "");

fputs($this->smtp_conn,"MAIL FROM:<" . $from . ">" . $useVerp . $this->CRLF);

$rply = $this->get_lines();

$code = substr($rply,0,3);

if($this->do_debug >= 2) {

echo "SMTP -> FROM SERVER:" . $rply . $this->CRLF . ' ';

}

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) {

echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF . ' ';

}

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

* @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

fputs($this->smtp_conn,"quit" . $this->CRLF);

// get any good-bye messages

$byemsg = $this->get_lines();

if($this->do_debug >= 2) {

echo "SMTP -> FROM SERVER:" . $byemsg . $this->CRLF . ' ';

}

$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) {

echo "SMTP -> ERROR: " . $e["error"] . ": " . $byemsg . $this->CRLF . ' ';

}

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

* @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;

}

fputs($this->smtp_conn,"RCPT TO:<" . $to . ">" . $this->CRLF);

$rply = $this->get_lines();

$code = substr($rply,0,3);

if($this->do_debug >= 2) {

echo "SMTP -> FROM SERVER:" . $rply . $this->CRLF . ' ';

}

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) {

echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF . ' ';

}

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;

}

fputs($this->smtp_conn,"RSET" . $this->CRLF);

$rply = $this->get_lines();

$code = substr($rply,0,3);

if($this->do_debug >= 2) {

echo "SMTP -> FROM SERVER:" . $rply . $this->CRLF . ' ';

}

if($code != 250) {

$this->error =

array("error" => "RSET failed",

"smtp_code" => $code,

"smtp_msg" => substr($rply,4));

if($this->do_debug >= 1) {

echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF . ' ';

}

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

* @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;

}

fputs($this->smtp_conn,"SAML FROM:" . $from . $this->CRLF);

$rply = $this->get_lines();

$code = substr($rply,0,3);

if($this->do_debug >= 2) {

echo "SMTP -> FROM SERVER:" . $rply . $this->CRLF . ' ';

}

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) {

echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF . ' ';

}

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) {

echo "SMTP -> NOTICE: " . $this->error["error"] . $this->CRLF . ' ';

}

return false;

}

/**

* 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 = "";

while($str = @fgets($this->smtp_conn,515)) {

if($this->do_debug >= 4) {

echo "SMTP -> get_lines(): \$data was \"$data\"" . $this->CRLF . ' ';

echo "SMTP -> get_lines(): \$str is \"$str\"" . $this->CRLF . ' ';

}

$data .= $str;

if($this->do_debug >= 4) {

echo "SMTP -> get_lines(): \$data is \"$data\"" . $this->CRLF . ' ';

}

// if 4th character is a space, we are done reading, break the loop

if(substr($str,3,1) == " ") { break; }

}

return $data;

}