* $transport = Swift_SmtpTransport::newInstance('smtp.gmail.com', 587, 'tls') * ->setAuthMode('XOAUTH2') * ->setUsername('YOUR_EMAIL_ADDRESS') * ->setPassword('YOUR_ACCESS_TOKEN'); * * * @author xu.li * * @see https://developers.google.com/google-apps/gmail/xoauth2_protocol */ class Swift_Transport_Esmtp_Auth_XOAuth2Authenticator implements Swift_Transport_Esmtp_Authenticator { /** * Get the name of the AUTH mechanism this Authenticator handles. * * @return string */ public function getAuthKeyword() { return 'XOAUTH2'; } /** * Try to authenticate the user with $email and $token. * * @param Swift_Transport_SmtpAgent $agent * @param string $email * @param string $token * * @return bool */ public function authenticate(Swift_Transport_SmtpAgent $agent, $email, $token) { try { $param = $this->constructXOAuth2Params($email, $token); $agent->executeCommand('AUTH XOAUTH2 '.$param."\r\n", array(235)); return true; } catch (Swift_TransportException $e) { $agent->executeCommand("RSET\r\n", array(250)); return false; } } /** * Construct the auth parameter. * * @see https://developers.google.com/google-apps/gmail/xoauth2_protocol#the_sasl_xoauth2_mechanism */ protected function constructXOAuth2Params($email, $token) { return base64_encode("user=$email\1auth=Bearer $token\1\1"); } }