function _sendtohost($hname, $arrto, $isrelay)
{
$ret = false;
if ($hname == "localhost") {
$ret = mail($this->_content['header']['to'], $this->_subject, implode('', $this->_content['body']), $this->_content['header']['local']);
if (!$ret) {
$ret = $this->_sendtoip('127.0.0.1', $arrto, $isrelay);
}
} else {
if ($isrelay) {
$ret = $this->_sendtoip($hname, $arrto, $isrelay);
} else {
if (FUNC::is_ipv4($hname)) {
$ret = $this->_sendtoip($hname, $arrto, $isrelay);
} else {
$resmx = FUNC::is_win() ? FUNC::getmxrr_win($hname, $mxhost) : getmxrr($hname, $mxhost);
$iparr = array();
if ($resmx) {
foreach ($mxhost as $hostname) {
$iphost = gethostbyname($hostname);
if ($iphost != $hname && FUNC::is_ipv4($iphost) && !isset($iparr[$iphost])) {
$iparr[$iphost] = $iphost;
}
}
} else {
$iphost = gethostbyname($hname);
if ($iphost != $hname && FUNC::is_ipv4($iphost)) {
$iparr[$iphost] = $iphost;
}
}
if (count($iparr) > 0) {
foreach ($iparr as $ipaddr) {
if ($ret = $this->_sendtoip($ipaddr, $arrto, $isrelay)) {
break;
}
}
} else {
throw new Exception('Can not find any valid ip address for hostname "' . $hname . '", on class SMTP::_sendtohost()', 512);
}
}
}
}
return $ret;
}
function connect($host, $user, $pass, $port = 110, $ssl = false, $timeout = 30)
{
$setver = true;
if (is_string($host)) {
$host = FUNC::str_clear($host);
$host = trim($host);
if ($host != "") {
if (FUNC::is_ipv4($host)) {
$iphost = $host;
} else {
$iphost = gethostbyname($host);
if ($iphost == $host) {
$setver = false;
trigger_error('Invalid 3 hostname value "' . $host . '" (doesn\'t have an IPv4 address), on class POP3::connect()', 512);
}
}
} else {
$setver = false;
trigger_error('Invalid 2 hostname/ip value, on class POP3::connect()', 512);
}
} else {
$setver = false;
trigger_error('Invalid 1 hostname/ip type value, on class POP3::connect()', 512);
}
if (is_string($user)) {
$user = FUNC::str_clear($user);
$user = trim($user);
if ($user == "") {
$setver = false;
trigger_error('Invalid 2 username value, on class POP3::connect()', 512);
}
} else {
$setver = false;
trigger_error('Invalid 1 username type value, on class POP3::connect()', 512);
}
if (is_string($pass)) {
$pass = FUNC::str_clear($pass);
$pass = trim($pass);
if ($pass == "") {
$setver = false;
trigger_error('Invalid 2 password value, on class POP3::connect()', 512);
}
} else {
$setver = false;
trigger_error('Invalid 1 password type value, on class POP3::connect()', 512);
}
if (!is_int($port)) {
$port = 110;
trigger_error('Invalid port type value, on class POP3::connect()', 512);
}
if (is_string($ssl)) {
$ssl = FUNC::str_clear($ssl);
$ssl = trim(strtolower($ssl));
if (!($ssl == "tls" || $ssl == "ssl")) {
$ssl = false;
trigger_error('Invalid TLS/SSL value, on class POP3::connect()', 512);
}
} else {
if (is_bool($ssl)) {
$ssl = $ssl ? 'ssl' : false;
} else {
$ssl = false;
trigger_error('Invalid TLS/SSL type value, on class POP3::connect()', 512);
}
}
if (!is_int($timeout)) {
$timeout = 30;
trigger_error('Invalid timeout type value, on class POP3::connect()', 512);
}
if ($setver) {
$proto = $ssl ? $ssl . '://' : '';
if (!($fp = fsockopen($proto . $iphost, $port, $err_num, $err_msg, $timeout))) {
$setver = false;
trigger_error('Response 1 error "' . $err_msg . '", on class POP3::connect()', 512);
} else {
stream_set_timeout($fp, $timeout);
$rcv = fgets($fp, 1024);
if (substr($rcv, 0, 3) != '+OK') {
fclose($fp);
$setver = false;
trigger_error('Response 2 error "' . $rcv . '", on class POP3::connect()', 512);
}
if ($setver) {
fputs($fp, "USER " . $user . "\r\n");
$rcv = fgets($fp, 1024);
if (substr($rcv, 0, 3) != '+OK') {
fclose($fp);
$setver = false;
trigger_error('Response 3 error "' . $rcv . '", on class POP3::connect()', 512);
}
}
if ($setver) {
fputs($fp, "PASS " . $pass . "\r\n");
$rcv = fgets($fp, 1024);
if (substr($rcv, 0, 3) != '+OK') {
fclose($fp);
$setver = false;
trigger_error('Response 4 error "' . $rcv . '", on class POP3::connect()', 512);
}
}
if ($setver) {
$setver = $fp;
}
}
}
return $setver;
}