/**
* Read data from incoming stream.
*
* @return string Line of data.
*
* @throws Horde_Smtp_Exception
*/
public function read()
{
if (feof($this->_stream)) {
$this->close();
$this->_params['debug']->info("ERROR: Server closed the connection.");
throw new Horde_Smtp_Exception(Horde_Smtp_Translation::r("Server closed the connection unexpectedly."), Horde_Smtp_Exception::DISCONNECT);
}
if (($read = fgets($this->_stream)) === false) {
$this->_params['debug']->info("ERROR: Server read/timeout error.");
throw new Horde_Smtp_Exception(Horde_Smtp_Translation::r("Error when communicating with the server."), Horde_Smtp_Exception::SERVER_READERROR);
}
$this->_params['debug']->server(rtrim($read, "\r\n"));
return $read;
}
/**
* Starts the TLS connection to the server, if necessary. See RFC 3207.
*
* @return boolean True if TLS was started.
*
* @throws Horde_Smtp_Exception
*/
protected function _startTls()
{
$secure = $this->getParam('secure');
if ($this->isSecureConnection() || $secure !== true && $secure !== 'tls') {
return false;
}
if (!$this->queryExtension('STARTTLS')) {
if ($secure === true) {
return false;
}
throw new Horde_Smtp_Exception(Horde_Smtp_Translation::r("Server does not support TLS connections."), Horde_Smtp_Exception::LOGIN_TLSFAILURE);
}
$this->_connection->write('STARTTLS');
$this->_getResponse(220, 'logout');
if (!$this->_connection->startTls()) {
$this->logout();
$e = new Horde_Smtp_Exception();
$e->setSmtpCode(454);
throw $e;
}
$this->_debug->info('Successfully completed TLS negotiation.');
$this->setParam('secure', 'tls');
return true;
}
/**
* Set the SMTP reply code.
*
* @param integer $code SMTP reply code.
*/
public function setSmtpCode($code)
{
$this->_smtpcode = $code;
// Any code not listed here will get the details of the error message
// as returned from the server.
switch ($code) {
case 450:
$this->raw_msg = Horde_Smtp_Translation::r("Mailbox unavailable.");
$this->message = Horde_Smtp_Translation::t($this->raw_msg);
$this->code = self::MAILBOX_UNAVAILABLE;
break;
case 452:
$this->raw_msg = Horde_Smtp_Translation::r("Insufficient system storage.");
$this->message = Horde_Smtp_Translation::t($this->raw_msg);
$this->code = self::INSUFFICIENT_STORAGE;
break;
case 454:
$this->raw_msg = Horde_Smtp_Translation::r("Could not open secure TLS connection to the server.");
$this->message = Horde_Smtp_Translation::t($this->raw_msg);
$this->code = self::LOGIN_TLSFAILURE;
break;
case 530:
$this->raw_msg = Horde_Smtp_Translation::r("Server requires authentication.");
$this->message = Horde_Smtp_Translation::t($this->raw_msg);
$this->code = self::LOGIN_REQUIREAUTHENTICATION;
break;
case 550:
$this->raw_msg = Horde_Smtp_Translation::r("Message could not be delivered - the address was not found, is unknown, or is not receiving messages.");
$this->message = Horde_Smtp_Translation::t($this->raw_msg);
$this->code = self::MAILBOX_UNAVAILABLE;
break;
case 551:
$this->code = self::UNKNOWN_LOCAL_USER;
break;
case 552:
$this->code = self::OVERQUOTA;
break;
case 554:
$this->raw_msg = Horde_Smtp_Translation::r("Server is not accepting SMTP connections.");
$this->message = Horde_Smtp_Translation::t($this->raw_msg);
$this->code = self::DISCONNECT;
break;
}
}
