function connect($host = null, $port = null, $user = null, $pass = null, $vssl = null, $tout = null, $name = null, $context = null, $login = null, $debug = null)
{
if (!FUNC4::is_debug($debug)) {
$debug = debug_backtrace();
}
global $_RESULT;
$_RESULT = $err = array();
$_smtp = new SMTP4();
if ($port == null) {
$port = $_smtp->PORT;
}
if ($tout == null) {
$tout = $_smtp->TOUT;
}
if (!is_string($host)) {
$err[] = 'invalid host type';
} else {
$host = strtolower(trim($host));
if (!($host != '' && ($host == 'localhost' || FUNC4::is_ipv4($host) || FUNC4::is_hostname($host, true, $debug)))) {
$err[] = 'invalid host value';
}
}
if (!(is_int($port) && $port > 0)) {
$err[] = 'invalid port value';
}
if ($user != null) {
if (!is_string($user)) {
$err[] = 'invalid username type';
} else {
if (($user = FUNC4::str_clear($user)) == '') {
$err[] = 'invalid username value';
}
}
}
if ($pass != null) {
if (!is_string($pass)) {
$err[] = 'invalid password type';
} else {
if (($pass = FUNC4::str_clear($pass)) == '') {
$err[] = 'invalid password value';
}
}
}
if ($user != null && $pass == null || $user == null && $pass != null) {
$err[] = 'invalid username/password combination';
}
if ($vssl != null) {
if (!is_string($vssl)) {
$err[] = 'invalid ssl version type';
} else {
$vssl = strtolower($vssl);
if (!($vssl == 'tls' || $vssl == 'ssl' || $vssl == 'sslv2' || $vssl == 'sslv3')) {
$err[] = 'invalid ssl version value';
}
}
}
if (!(is_int($tout) && $tout > 0)) {
$err[] = 'invalid timeout value';
}
if ($name != null) {
if (!is_string($name)) {
$err[] = 'invalid name type';
} else {
$name = strtolower(trim($name));
if (!($name != '' && ($name == 'localhost' || FUNC4::is_ipv4($name) || FUNC4::is_hostname($name, true, $debug)))) {
$err[] = 'invalid name value';
}
}
} else {
$name = '127.0.0.1';
}
if ($context != null && !is_resource($context)) {
$err[] = 'invalid context type';
}
if ($login != null) {
$login = strtolower(trim($login));
if (!($login == 'login' || $login == 'plain' || $login == 'cram-md5')) {
$err[] = 'invalid authentication type value';
}
}
if (count($err) > 0) {
FUNC4::trace($debug, implode(', ', $err));
} else {
$ret = false;
$prt = $vssl == null ? 'tcp' : $vssl;
$conn = $context == null ? fsockopen($prt . '://' . $host, $port, $errno, $errstr, $tout) : fsockopen($prt . '://' . $host, $port, $errno, $errstr, $tout, $context);
if (!$conn) {
$_RESULT[101] = $errstr;
} else {
if (!socket_set_timeout($conn, $_smtp->COUT)) {
$_RESULT[102] = 'could not set socket timeout';
} else {
if (!SMTP4::_cres($conn, $resp, 220, null, $debug)) {
$_RESULT[103] = $resp;
} else {
$continue = true;
if (!SMTP4::ehlo($conn, $name, $debug)) {
$continue = SMTP4::helo($conn, $name, $debug);
}
if ($continue) {
if ($user == null) {
$ret = true;
} else {
if ($login != null) {
$ret = SMTP4::auth($conn, $user, $pass, $login, $debug);
} else {
list($code, $arr) = each($_RESULT);
$auth['default'] = $auth['login'] = $auth['plain'] = $auth['cram-md5'] = false;
foreach ($arr as $line) {
if (substr($line, 0, strlen('250-AUTH ')) == '250-AUTH ') {
foreach (explode(' ', substr($line, strlen('250-AUTH '))) as $type) {
$type = strtolower(trim($type));
if ($type == 'login' || $type == 'plain' || $type == 'cram-md5') {
$auth[$type] = true;
}
}
} else {
if (substr($line, 0, strlen('250 AUTH=')) == '250 AUTH=') {
$expl = explode(' ', strtolower(trim(substr($line, strlen('250 AUTH=')))), 2);
if ($expl[0] == 'login' || $expl[0] == 'plain' || $expl[0] == 'cram-md5') {
$auth['default'] = $expl[0];
}
}
}
}
if ($auth['default']) {
$ret = SMTP4::auth($conn, $user, $pass, $auth['default'], $debug);
}
if (!$ret && $auth['login'] && $auth['default'] != 'login') {
$ret = SMTP4::auth($conn, $user, $pass, 'login', $debug);
}
if (!$ret && $auth['plain'] && $auth['default'] != 'plain') {
$ret = SMTP4::auth($conn, $user, $pass, 'plain', $debug);
}
if (!$ret && $auth['cram-md5'] && $auth['default'] != 'cram-md5') {
$ret = SMTP4::auth($conn, $user, $pass, 'cram-md5', $debug);
}
if (!$ret && !$auth['login'] && $auth['default'] != 'login') {
$ret = SMTP4::auth($conn, $user, $pass, 'login', $debug);
}
if (!$ret && !$auth['plain'] && $auth['default'] != 'plain') {
$ret = SMTP4::auth($conn, $user, $pass, 'plain', $debug);
}
if (!$ret && !$auth['cram-md5'] && $auth['default'] != 'cram-md5') {
$ret = SMTP4::auth($conn, $user, $pass, 'cram-md5', $debug);
}
}
}
}
}
}
}
if (!$ret) {
if (is_resource($conn)) {
SMTP4::disconnect($conn, $debug);
}
$conn = false;
}
return $conn;
}
}
