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+<?php
+/**
+ * PHPMailer RFC821 SMTP email transport class.
+ * PHP Version 5
+ * @package PHPMailer
+ * @link https://github.com/PHPMailer/PHPMailer/ The PHPMailer GitHub project
+ * @author Marcus Bointon (Synchro/coolbru) <phpmailer@synchromedia.co.uk>
+ * @author Jim Jagielski (jimjag) <jimjag@gmail.com>
+ * @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
+ * @author Brent R. Matzelle (original founder)
+ * @copyright 2014 Marcus Bointon
+ * @copyright 2010 - 2012 Jim Jagielski
+ * @copyright 2004 - 2009 Andy Prevost
+ * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @note 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 RFC821 SMTP email transport class.
+ * Implements RFC 821 SMTP commands and provides some utility methods for sending mail to an SMTP server.
+ * @package PHPMailer
+ * @author Chris Ryan <unknown@example.com>
+ * @author Marcus Bointon <phpmailer@synchromedia.co.uk>
+ */
+class Smtp
+{
+ /**
+ * The PHPMailer SMTP version number.
+ * @type string
+ */
+ const VERSION = '5.2.7';
+
+ /**
+ * SMTP line break constant.
+ * @type string
+ */
+ const CRLF = "\r\n";
+
+ /**
+ * The SMTP port to use if one is not specified.
+ * @type int
+ */
+ const DEFAULT_SMTP_PORT = 25;
+
+ /**
+ * The maximum line length allowed by RFC 2822 section 2.1.1
+ * @type int
+ */
+ const MAX_LINE_LENGTH = 998;
+
+ /**
+ * The PHPMailer SMTP Version number.
+ * @type string
+ * @deprecated Use the constant instead
+ * @see SMTP::VERSION
+ */
+ public $Version = '5.2.7';
+
+ /**
+ * SMTP server port number.
+ * @type int
+ * @deprecated This is only ever used as a default value, so use the constant instead
+ * @see SMTP::DEFAULT_SMTP_PORT
+ */
+ public $SMTP_PORT = 25;
+
+ /**
+ * SMTP reply line ending.
+ * @type string
+ * @deprecated Use the constant instead
+ * @see SMTP::CRLF
+ */
+ public $CRLF = "\r\n";
+
+ /**
+ * Debug output level.
+ * Options:
+ * * `0` No output
+ * * `1` Commands
+ * * `2` Data and commands
+ * * `3` As 2 plus connection status
+ * * `4` Low-level data output
+ * @type int
+ */
+ public $do_debug = 0;
+
+ /**
+ * How to handle debug output.
+ * Options:
+ * * `echo` Output plain-text as-is, appropriate for CLI
+ * * `html` Output escaped, line breaks converted to <br>, appropriate for browser output
+ * * `error_log` Output to error log as configured in php.ini
+ * @type string
+ */
+ public $Debugoutput = 'echo';
+
+ /**
+ * Whether to use VERP.
+ * @link http://en.wikipedia.org/wiki/Variable_envelope_return_path
+ * @link http://www.postfix.org/VERP_README.html Info on VERP
+ * @type bool
+ */
+ public $do_verp = false;
+
+ /**
+ * The timeout value for connection, in seconds.
+ * Default of 5 minutes (300sec) is from RFC2821 section 4.5.3.2
+ * This needs to be quite high to function correctly with hosts using greetdelay as an anti-spam measure.
+ * @link http://tools.ietf.org/html/rfc2821#section-4.5.3.2
+ * @type int
+ */
+ public $Timeout = 300;
+
+ /**
+ * The SMTP timelimit value for reads, in seconds.
+ * @type int
+ */
+ public $Timelimit = 30;
+
+ /**
+ * The socket for the server connection.
+ * @type resource
+ */
+ protected $smtp_conn;
+
+ /**
+ * Error message, if any, for the last call.
+ * @type string
+ */
+ protected $error = '';
+
+ /**
+ * The reply the server sent to us for HELO.
+ * @type string
+ */
+ protected $helo_rply = '';
+
+ /**
+ * The most recent reply received from the server.
+ * @type string
+ */
+ protected $last_reply = '';
+
+ /**
+ * Constructor.
+ * @access public
+ */
+ public function __construct()
+ {
+ $this->smtp_conn = 0;
+ $this->error = null;
+ $this->helo_rply = null;
+ $this->do_debug = 0;
+ }
+
+ /**
+ * Output debugging info via a user-selected method.
+ * @param string $str Debug string to output
+ * @return void
+ */
+ protected function edebug($str)
+ {
+ switch ($this->Debugoutput) {
+ case 'error_log':
+ //Don't output, just log
+ error_log($str);
+ break;
+ case 'html':
+ //Cleans up output a bit for a better looking, HTML-safe output
+ echo htmlentities(
+ preg_replace('/[\r\n]+/', '', $str),
+ ENT_QUOTES,
+ 'UTF-8'
+ )
+ . "<br>\n";
+ break;
+ case 'echo':
+ default:
+ echo gmdate('Y-m-d H:i:s')."\t".trim($str)."\n";
+ }
+ }
+
+ /**
+ * Connect to an SMTP server.
+ * @param string $host SMTP server IP or host name
+ * @param int $port The port number to connect to
+ * @param int $timeout How long to wait for the connection to open
+ * @param array $options An array of options for stream_context_create()
+ * @access public
+ * @return bool
+ */
+ public function connect($host, $port = null, $timeout = 30, $options = array())
+ {
+ // Clear errors to avoid 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)) {
+ $port = self::DEFAULT_SMTP_PORT;
+ }
+ // Connect to the SMTP server
+ if ($this->do_debug >= 3) {
+ $this->edebug('Connection: opening');
+ }
+ $errno = 0;
+ $errstr = '';
+ $socket_context = stream_context_create($options);
+ //Suppress errors; connection failures are handled at a higher level
+ $this->smtp_conn = @stream_socket_client(
+ $host . ":" . $port,
+ $errno,
+ $errstr,
+ $timeout,
+ STREAM_CLIENT_CONNECT,
+ $socket_context
+ );
+ // Verify we connected properly
+ if (empty($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)"
+ );
+ }
+ return false;
+ }
+ if ($this->do_debug >= 3) {
+ $this->edebug('Connection: opened');
+ }
+ // 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 && $timeout > $max) { // Don't bother if unlimited
+ @set_time_limit($timeout);
+ }
+ stream_set_timeout($this->smtp_conn, $timeout, 0);
+ }
+ // Get any announcement
+ $announce = $this->get_lines();
+ if ($this->do_debug >= 2) {
+ $this->edebug('SERVER -> CLIENT: ' . $announce);
+ }
+ return true;
+ }
+
+ /**
+ * Initiate a TLS (encrypted) session.
+ * @access public
+ * @return bool
+ */
+ public function startTLS()
+ {
+ if (!$this->sendCommand('STARTTLS', 'STARTTLS', 220)) {
+ return false;
+ }
+ // Begin encrypted connection
+ if (!stream_socket_enable_crypto(
+ $this->smtp_conn,
+ true,
+ STREAM_CRYPTO_METHOD_TLS_CLIENT
+ )) {
+ return false;
+ }
+ return true;
+ }
+
+ /**
+ * Perform SMTP authentication.
+ * Must be run after hello().
+ * @see hello()
+ * @param string $username The user name
+ * @param string $password The password
+ * @param string $authtype The auth type (PLAIN, LOGIN, NTLM, CRAM-MD5)
+ * @param string $realm The auth realm for NTLM
+ * @param string $workstation The auth workstation for NTLM
+ * @access public
+ * @return bool True if successfully authenticated.
+ */
+ public function authenticate(
+ $username,
+ $password,
+ $authtype = 'LOGIN',
+ $realm = '',
+ $workstation = ''
+ ) {
+ if (empty($authtype)) {
+ $authtype = 'LOGIN';
+ }
+ switch ($authtype) {
+ case 'PLAIN':
+ // Start authentication
+ if (!$this->sendCommand('AUTH', 'AUTH PLAIN', 334)) {
+ return false;
+ }
+ // Send encoded username and password
+ if (!$this->sendCommand(
+ 'User & Password',
+ base64_encode("\0" . $username . "\0" . $password),
+ 235
+ )
+ ) {
+ return false;
+ }
+ break;
+ case 'LOGIN':
+ // Start authentication
+ if (!$this->sendCommand('AUTH', 'AUTH LOGIN', 334)) {
+ return false;
+ }
+ if (!$this->sendCommand("Username", base64_encode($username), 334)) {
+ return false;
+ }
+ if (!$this->sendCommand("Password", base64_encode($password), 235)) {
+ 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 Docs http://curl.haxx.se/rfc/ntlm.html#ntlmSmtpAuthentication
+ */
+ require_once 'extras/ntlm_sasl_client.php';
+ $temp = new stdClass();
+ $ntlm_client = new ntlm_sasl_client_class;
+ //Check that functions are available
+ if (!$ntlm_client->Initialize($temp)) {
+ $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']
+ );
+ }
+ return false;
+ }
+ //msg1
+ $msg1 = $ntlm_client->TypeMsg1($realm, $workstation); //msg1
+
+ if (!$this->sendCommand(
+ 'AUTH NTLM',
+ 'AUTH NTLM ' . base64_encode($msg1),
+ 334
+ )
+ ) {
+ return false;
+ }
+ //Though 0 based, there is a white space after the 3 digit number
+ //msg2
+ $challenge = substr($this->last_reply, 3);
+ $challenge = base64_decode($challenge);
+ $ntlm_res = $ntlm_client->NTLMResponse(
+ substr($challenge, 24, 8),
+ $password
+ );
+ //msg3
+ $msg3 = $ntlm_client->TypeMsg3(
+ $ntlm_res,
+ $username,
+ $realm,
+ $workstation
+ );
+ // send encoded username
+ return $this->sendCommand('Username', base64_encode($msg3), 235);
+ break;
+ case 'CRAM-MD5':
+ // Start authentication
+ if (!$this->sendCommand('AUTH CRAM-MD5', 'AUTH CRAM-MD5', 334)) {
+ return false;
+ }
+ // Get the challenge
+ $challenge = base64_decode(substr($this->last_reply, 4));
+
+ // Build the response
+ $response = $username . ' ' . $this->hmac($challenge, $password);
+
+ // send encoded credentials
+ return $this->sendCommand('Username', base64_encode($response), 235);
+ break;
+ }
+ return true;
+ }
+
+ /**
+ * Calculate an MD5 HMAC hash.
+ * Works like hash_hmac('md5', $data, $key)
+ * in case that function is not available
+ * @param string $data The data to hash
+ * @param string $key The key to hash with
+ * @access protected
+ * @return string
+ */
+ protected function hmac($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
+
+ $bytelen = 64; // byte length for md5
+ if (strlen($key) > $bytelen) {
+ $key = pack('H*', md5($key));
+ }
+ $key = str_pad($key, $bytelen, chr(0x00));
+ $ipad = str_pad('', $bytelen, chr(0x36));
+ $opad = str_pad('', $bytelen, chr(0x5c));
+ $k_ipad = $key ^ $ipad;
+ $k_opad = $key ^ $opad;
+
+ return md5($k_opad . pack('H*', md5($k_ipad . $data)));
+ }
+
+ /**
+ * Check connection state.
+ * @access public
+ * @return bool True if connected.
+ */
+ public function connected()
+ {
+ if (!empty($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: EOF caught while checking if connected'
+ );
+ }
+ $this->close();
+ return false;
+ }
+ return true; // everything looks good
+ }
+ return false;
+ }
+
+ /**
+ * Close the socket and clean up the state of the class.
+ * Don't use this function without first trying to use QUIT.
+ * @see 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($this->smtp_conn);
+ if ($this->do_debug >= 3) {
+ $this->edebug('Connection: closed');
+ }
+ $this->smtp_conn = 0;
+ }
+ }
+
+ /**
+ * Send an SMTP DATA command.
+ * 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 separated by and additional <CRLF>.
+ * Implements rfc 821: DATA <CRLF>
+ * @param string $msg_data Message data to send
+ * @access public
+ * @return bool
+ */
+ public function data($msg_data)
+ {
+ if (!$this->sendCommand('DATA', 'DATA', 354)) {
+ return false;
+ }
+ /* The server is ready to accept data!
+ * According to rfc821 we should not send more than 1000 characters on a single line (including the CRLF)
+ * 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.
+ * We will also look for lines that start with a '.' and prepend an additional '.'.
+ * NOTE: this does not count towards line-length limit.
+ */
+
+ // Normalize line breaks before exploding
+ $lines = explode("\n", str_replace(array("\r\n", "\r"), "\n", $msg_data));
+
+ /* To distinguish between a complete RFC822 message and a plain message body, we check if the first field
+ * of the first line (':' separated) does not contain a space then it _should_ be a header and we will
+ * process all lines before a blank line as headers.
+ */
+
+ $field = substr($lines[0], 0, strpos($lines[0], ':'));
+ $in_headers = false;
+ if (!empty($field) && strpos($field, ' ') === false) {
+ $in_headers = true;
+ }
+
+ foreach ($lines as $line) {
+ $lines_out = array();
+ if ($in_headers and $line == '') {
+ $in_headers = false;
+ }
+ // ok we need to break this line up into several smaller lines
+ //This is a small micro-optimisation: isset($str[$len]) is equivalent to (strlen($str) > $len)
+ while (isset($line[self::MAX_LINE_LENGTH])) {
+ //Working backwards, try to find a space within the last MAX_LINE_LENGTH chars of the line to break on
+ //so as to avoid breaking in the middle of a word
+ $pos = strrpos(substr($line, 0, self::MAX_LINE_LENGTH), ' ');
+ if (!$pos) { //Deliberately matches both false and 0
+ //No nice break found, add a hard break
+ $pos = self::MAX_LINE_LENGTH - 1;
+ $lines_out[] = substr($line, 0, $pos);
+ $line = substr($line, $pos);
+ } else {
+ //Break at the found point
+ $lines_out[] = substr($line, 0, $pos);
+ //Move along by the amount we dealt with
+ $line = substr($line, $pos + 1);
+ }
+ /* If processing headers add a LWSP-char to the front of new line
+ * RFC822 section 3.1.1
+ */
+ if ($in_headers) {
+ $line = "\t" . $line;
+ }
+ }
+ $lines_out[] = $line;
+
+ // Send the lines to the server
+ foreach ($lines_out as $line_out) {
+ //RFC2821 section 4.5.2
+ if (!empty($line_out) and $line_out[0] == '.') {
+ $line_out = '.' . $line_out;
+ }
+ $this->client_send($line_out . self::CRLF);
+ }
+ }
+
+ // Message data has been sent, complete the command
+ return $this->sendCommand('DATA END', '.', 250);
+ }
+
+ /**
+ * Send an SMTP HELO or EHLO command.
+ * Used to identify the sending server to the receiving server.
+ * This makes sure that client and server are in a known state.
+ * Implements RFC 821: HELO <SP> <domain> <CRLF>
+ * and RFC 2821 EHLO.
+ * @param string $host The host name or IP to connect to
+ * @access public
+ * @return bool
+ */
+ public function hello($host = '')
+ {
+ // Try extended hello first (RFC 2821)
+ return (bool)($this->sendHello('EHLO', $host) or $this->sendHello('HELO', $host));
+ }
+
+ /**
+ * Send an SMTP HELO or EHLO command.
+ * Low-level implementation used by hello()
+ * @see hello()
+ * @param string $hello The HELO string
+ * @param string $host The hostname to say we are
+ * @access protected
+ * @return bool
+ */
+ protected function sendHello($hello, $host)
+ {
+ $noerror = $this->sendCommand($hello, $hello . ' ' . $host, 250);
+ $this->helo_rply = $this->last_reply;
+ return $noerror;
+ }
+
+ /**
+ * Send an SMTP MAIL command.
+ * 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>
+ * @param string $from Source address of this message
+ * @access public
+ * @return bool
+ */
+ public function mail($from)
+ {
+ $useVerp = ($this->do_verp ? ' XVERP' : '');
+ return $this->sendCommand(
+ 'MAIL FROM',
+ 'MAIL FROM:<' . $from . '>' . $useVerp,
+ 250
+ );
+ }
+
+ /**
+ * Send an SMTP QUIT command.
+ * Closes the socket if there is no error or the $close_on_error argument is true.
+ * Implements from rfc 821: QUIT <CRLF>
+ * @param bool $close_on_error Should the connection close if an error occurs?
+ * @access public
+ * @return bool
+ */
+ public function quit($close_on_error = true)
+ {
+ $noerror = $this->sendCommand('QUIT', 'QUIT', 221);
+ $err = $this->error; //Save any error
+ if ($noerror or $close_on_error) {
+ $this->close();
+ $this->error = $err; //Restore any error from the quit command
+ }
+ return $noerror;
+ }
+
+ /**
+ * Send an SMTP RCPT command.
+ * Sets the TO argument to $toaddr.
+ * Returns true if the recipient was accepted false if it was rejected.
+ * Implements from rfc 821: RCPT <SP> TO:<forward-path> <CRLF>
+ * @param string $toaddr The address the message is being sent to
+ * @access public
+ * @return bool
+ */
+ public function recipient($toaddr)
+ {
+ return $this->sendCommand(
+ 'RCPT TO',
+ 'RCPT TO:<' . $toaddr . '>',
+ array(250, 251)
+ );
+ }
+
+ /**
+ * Send an SMTP RSET command.
+ * Abort any transaction that is currently in progress.
+ * Implements rfc 821: RSET <CRLF>
+ * @access public
+ * @return bool True on success.
+ */
+ public function reset()
+ {
+ return $this->sendCommand('RSET', 'RSET', 250);
+ }
+
+ /**
+ * Send a command to an SMTP server and check its return code.
+ * @param string $command The command name - not sent to the server
+ * @param string $commandstring The actual command to send
+ * @param int|array $expect One or more expected integer success codes
+ * @access protected
+ * @return bool True on success.
+ */
+ protected function sendCommand($command, $commandstring, $expect)
+ {
+ if (!$this->connected()) {
+ $this->error = array(
+ 'error' => "Called $command without being connected"
+ );
+ return false;
+ }
+ $this->client_send($commandstring . self::CRLF);
+
+ $reply = $this->get_lines();
+ $code = substr($reply, 0, 3);
+
+ if ($this->do_debug >= 2) {
+ $this->edebug('SERVER -> CLIENT: ' . $reply);
+ }
+
+ if (!in_array($code, (array)$expect)) {
+ $this->last_reply = null;
+ $this->error = array(
+ 'error' => "$command command failed",
+ 'smtp_code' => $code,
+ 'detail' => substr($reply, 4)
+ );
+ if ($this->do_debug >= 1) {
+ $this->edebug(
+ 'SMTP ERROR: ' . $this->error['error'] . ': ' . $reply
+ );
+ }
+ return false;
+ }
+
+ $this->last_reply = $reply;
+ $this->error = null;
+ return true;
+ }
+
+ /**
+ * Send an SMTP SAML command.
+ * 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>
+ * @param string $from The address the message is from
+ * @access public
+ * @return bool
+ */
+ public function sendAndMail($from)
+ {
+ return $this->sendCommand('SAML', "SAML FROM:$from", 250);
+ }
+
+ /**
+ * Send an SMTP VRFY command.
+ * @param string $name The name to verify
+ * @access public
+ * @return bool
+ */
+ public function verify($name)
+ {
+ return $this->sendCommand('VRFY', "VRFY $name", array(250, 251));
+ }
+
+ /**
+ * Send an SMTP NOOP command.
+ * Used to keep keep-alives alive, doesn't actually do anything
+ * @access public
+ * @return bool
+ */
+ public function noop()
+ {
+ return $this->sendCommand('NOOP', 'NOOP', 250);
+ }
+
+ /**
+ * Send an SMTP TURN command.
+ * 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 implemented in future
+ * Implements from rfc 821: TURN <CRLF>
+ * @access public
+ * @return bool
+ */
+ public function turn()
+ {
+ $this->error = array(
+ 'error' => 'The SMTP TURN command is not implemented'
+ );
+ if ($this->do_debug >= 1) {
+ $this->edebug('SMTP NOTICE: ' . $this->error['error']);
+ }
+ return false;
+ }
+
+ /**
+ * Send raw data to the server.
+ * @param string $data The data to send
+ * @access public
+ * @return int|bool The number of bytes sent to the server or false on error
+ */
+ public function client_send($data)
+ {
+ if ($this->do_debug >= 1) {
+ $this->edebug("CLIENT -> SERVER: $data");
+ }
+ return fwrite($this->smtp_conn, $data);
+ }
+
+ /**
+ * Get the latest error.
+ * @access public
+ * @return array
+ */
+ public function getError()
+ {
+ return $this->error;
+ }
+
+ /**
+ * Get the last reply from the server.
+ * @access public
+ * @return string
+ */
+ public function getLastReply()
+ {
+ return $this->last_reply;
+ }
+
+ /**
+ * Read the SMTP server's response.
+ * Either before eof or socket timeout occurs on the operation.
+ * With SMTP we can tell if we have more lines to read if the
+ * 4th character is '-' symbol. If it is a space then we don't
+ * need to read anything else.
+ * @access protected
+ * @return string
+ */
+ protected function get_lines()
+ {
+ // If the connection is bad, give up straight away
+ if (!is_resource($this->smtp_conn)) {
+ return '';
+ }
+ $data = '';
+ $endtime = 0;
+ stream_set_timeout($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\"");
+ $this->edebug("SMTP -> get_lines(): \$str is \"$str\"");
+ }
+ $data .= $str;
+ if ($this->do_debug >= 4) {
+ $this->edebug("SMTP -> get_lines(): \$data is \"$data\"");
+ }
+ // If 4th character is a space, we are done reading, break the loop, micro-optimisation over strlen
+ if ((isset($str[3]) and $str[3] == ' ')) {
+ 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 (' . $this->Timeout . ' sec)'
+ );
+ }
+ break;
+ }
+ // Now check if reads took too long
+ if ($endtime and time() > $endtime) {
+ if ($this->do_debug >= 4) {
+ $this->edebug(
+ 'SMTP -> get_lines(): timelimit reached ('.
+ $this->Timelimit . ' sec)'
+ );
+ }
+ break;
+ }
+ }
+ return $data;
+ }
+
+ /**
+ * Enable or disable VERP address generation.
+ * @param bool $enabled
+ */
+ public function setVerp($enabled = false)
+ {
+ $this->do_verp = $enabled;
+ }
+
+ /**
+ * Get VERP address generation mode.
+ * @return bool
+ */
+ public function getVerp()
+ {
+ return $this->do_verp;
+ }
+
+ /**
+ * Set debug output method.
+ * @param string $method The function/method to use for debugging output.
+ */
+ public function setDebugOutput($method = 'echo')
+ {
+ $this->Debugoutput = $method;
+ }
+
+ /**
+ * Get debug output method.
+ * @return string
+ */
+ public function getDebugOutput()
+ {
+ return $this->Debugoutput;
+ }
+
+ /**
+ * Set debug output level.
+ * @param int $level
+ */
+ public function setDebugLevel($level = 0)
+ {
+ $this->do_debug = $level;
+ }
+
+ /**
+ * Get debug output level.
+ * @return int
+ */
+ public function getDebugLevel()
+ {
+ return $this->do_debug;
+ }
+
+ /**
+ * Set SMTP timeout.
+ * @param int $timeout
+ */
+ public function setTimeout($timeout = 0)
+ {
+ $this->Timeout = $timeout;
+ }
+
+ /**
+ * Get SMTP timeout.
+ * @return int
+ */
+ public function getTimeout()
+ {
+ return $this->Timeout;
+ }
+}
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-22 08:14:08 +0000