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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) | | 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. | | ------------------------------------------------------------------------- | | 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 * @copyright 2004 - 2008 Andy Prevost * @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)" . $this->CRLF . '<br />'; } return false; } // SMTP server can take longer to respond, give longer timeout for first read // Windows does not have support for this timeout function if(substr(PHP_OS, 0, 3) != "WIN") socket_set_timeout($this->smtp_conn, $tval, 0); // get any announcement $announce = $this->get_lines(); if($this->do_debug >= 2) { echo "SMTP -> FROM SERVER:" . $announce . $this->CRLF . '<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()) { $this->error = array("error" => "Called StartTLS() without being connected"); return false; } fputs($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 . $this->CRLF . '<br />'; } if($code != 220) { $this->error = array("error" => "STARTTLS not accepted from server", "smtp_code" => $code, "smtp_msg" => substr($rply,4)); if($this->do_debug >= 1) { echo "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 * @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 . $this->CRLF . '<br />'; } return false; } // Send encoded username fputs($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 . $this->CRLF . '<br />'; } return false; } // Send encoded password fputs($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 . $this->CRLF . '<br />'; } return false; } return true; } /** * Returns true if connected to a server otherwise false * @access public * @return bool */ public function Connected() { if(!empty($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 . $this->CRLF . '<br />'; } if($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) { echo "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 = "." . $line_out; } } fputs($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 . $this->CRLF . '<br />'; } if($code != 250) { $this->error = array("error" => "DATA not accepted from server", "smtp_code" => $code, "smtp_msg" => substr($rply,4)); if($this->do_debug >= 1) { echo "SMTP -> ERROR: " . $this->error["error"] . ": " . $rply . $this->CRLF . '<br />'; } return false; } return true; } /** * Sends the HELO command to the smtp server. * This makes sure that we and the server are in * the same known state. * * Implements from rfc 821: HELO <SP> <domain> <CRLF> * * SMTP CODE SUCCESS: 250 * SMTP CODE ERROR : 500, 501, 504, 421 * @access public * @return bool */ public function Hello($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 . $this->CRLF . '<br />'; } if($code != 250) { $this->error = array("error" => $hello . " not accepted from server", "smtp_code" => $code, "smtp_msg" => substr($rply,4)); if($this->do_debug >= 1) { echo "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 * $from. Returns true if successful or false otherwise. If True * the mail transaction is started and then one or more Recipient * commands may be called followed by a Data command. * * Implements rfc 821: MAIL <SP> FROM:<reverse-path> <CRLF> * * SMTP CODE SUCCESS: 250 * SMTP CODE SUCCESS: 552,451,452 * SMTP CODE SUCCESS: 500,501,421 * @access public * @return bool */ public function Mail($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 . $this->CRLF . '<br />'; } if($code != 250) { $this->error = array("error" => "MAIL not accepted from server", "smtp_code" => $code, "smtp_msg" => substr($rply,4)); if($this->do_debug >= 1) { echo "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 $close_on_error argument is true. * * Implements from rfc 821: QUIT <CRLF> * * SMTP CODE SUCCESS: 221 * SMTP CODE ERROR : 500 * @access public * @return bool */ public function Quit($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 . '<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) { echo "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 $to. * Returns true if the recipient was accepted false if it was rejected. * * Implements from rfc 821: RCPT <SP> TO:<forward-path> <CRLF> * * SMTP CODE SUCCESS: 250,251 * SMTP CODE FAILURE: 550,551,552,553,450,451,452 * SMTP CODE ERROR : 500,501,503,421 * @access public * @return bool */ public function Recipient($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 . $this->CRLF . '<br />'; } if($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) { echo "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()) { $this->error = array( "error" => "Called Reset() without being connected"); return false; } fputs($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 . $this->CRLF . '<br />'; } if($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 . '<br />'; } return false; } return true; } /** * Starts a mail transaction from the email address specified in * $from. Returns true if successful or false otherwise. If True * the mail transaction is started and then one or more Recipient * commands may be called followed by a Data command. This command * will send the message to the users terminal if they are logged * in and send them an email. * * Implements rfc 821: SAML <SP> FROM:<reverse-path> <CRLF> * * SMTP CODE SUCCESS: 250 * SMTP CODE SUCCESS: 552,451,452 * SMTP CODE SUCCESS: 500,501,502,421 * @access public * @return bool */ public function SendAndMail($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 . $this->CRLF . '<br />'; } if($code != 250) { $this->error = array("error" => "SAML not accepted from server", "smtp_code" => $code, "smtp_msg" => substr($rply,4)); if($this->do_debug >= 1) { echo "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) { echo "SMTP -> NOTICE: " . $this->error["error"] . $this->CRLF . '<br />'; } 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\"" . $this->CRLF . '<br />'; echo "SMTP -> get_lines(): \$str is \"$str\"" . $this->CRLF . '<br />'; } $data .= $str; if($this->do_debug >= 4) { echo "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; } } return $data; } } ?>
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