private CasAuthentication authenticateNow(CasAuthentication auth) throws AuthenticationException {
try {
final Assertion assertion =
ticketValidator.validate(auth.getCredentials().toString(), auth.getLoginUrl());
String name = assertion.getPrincipal();
final UserDetail userDetail = userDetailService.loadDetail(name);
if (null == userDetail) {
logger.error("cannot load {}'s detail from system", name);
throw new UsernameNotFoundException(Strings.concat("user ", name, " not found in system"));
}
userDetailChecker.check(userDetail);
return new CasAuthentication(
key,
userDetail,
auth.getCredentials(),
userDetail.getAuthorities(),
userDetail,
assertion);
} catch (final TicketValidationException e) {
throw new BadCredentialsException("Bad credentials :" + auth.getCredentials().toString(), e);
}
}
