How to use

attemptAuthentication

method

in

org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter

@Override
public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response)
    throws AuthenticationException {
  validateLogin(request);
  validatePassword(request);
  return super.attemptAuthentication(request, response);
}

  request.getHeader("accept").contains(MediaType.APPLICATION_FORM_URLENCODED_VALUE) ||
  (request.getContentType() != null && request.getContentType().contains(MediaType.APPLICATION_FORM_URLENCODED_VALUE))) {
return super.attemptAuthentication(request, response);

  request.getHeader("accept").contains(MediaType.APPLICATION_FORM_URLENCODED_VALUE) ||
  (request.getContentType() != null && request.getContentType().contains(MediaType.APPLICATION_FORM_URLENCODED_VALUE))) {
return super.attemptAuthentication(request, response);

@Override
public Authentication attemptAuthentication(
    javax.servlet.http.HttpServletRequest request,
    javax.servlet.http.HttpServletResponse response)
    throws AuthenticationException {
  final String autoLoginToken = request.getParameter("autoLoginToken");
  if (autoLoginToken !=null) {
    final Guest one = jpaDaoService.findOne("guest.byAutoLoginToken", Guest.class, autoLoginToken);
    if (one!=null) {
      if ((System.currentTimeMillis()-one.autoLoginTokenTimestamp)>60000) {
        throw new RuntimeException("Token is too old!");
      }
      final FlxUserDetails details = new FlxUserDetails(one);
      final UsernamePasswordAuthenticationToken authRequest =
          new UsernamePasswordAuthenticationToken(details, one.password, getAuthorities(one));
      authRequest.setDetails(details);
      jpaDaoService.execute("UPDATE Guest SET autoLoginToken=null WHERE autoLoginToken='" + autoLoginToken + "'");
      return authRequest;
    } else
      throw new RuntimeException("No such autologin token: " + autoLoginToken);
  }
  Authentication authentication = null;
  try { authentication = super.attemptAuthentication(request, response);}
  catch (AuthenticationException failed) {
    authentication = attemptAuthenticationWithEmailAddress(request);
  }
  return authentication;
}

auth = super.attemptAuthentication(request, response);