Custom Authentication Provider and User Details

I am unable to paste my code in so there may be some typos.
CustomProviderAuthentication

Code:

---

public class CustomAuthenticationProvider implements AuthenticationProvider {

@Resource DataSource dataSource;

public Authentication authenticate(Authentication authentication) throws AuthenticationException {
UsernamePasswordAuthenticationToken auth = (UsernamePasswordAuthenticationToken) authentication;
String username = String.valueOf(auth.getPrincipal());
String password = String.valueOf(auth.getCredentials());
Connection conn = null;
try{
  //In this call I use the username and password and pass them to my oracle proxy connection and then try to    connect to the database
  conn = dataSourceAdapter.doGetConnection(username, password);
}
catch(SQLException sqle) {
 throw new BadCredentialsException(LoginException.handleLoginErrors(sqle));
}
//I use the same connection to get the granted authorities, user's role and user's id
return new UsernamePasswordAuthenticationToken(username, password,new GrantedAuthority[] {new GrantedAuthorityImpl(userRole)});
}

---

It works well for testing the database connection.

Is it possible to post your userDetailsService related java implementation classes, please?

Thanks.

do you have implmentation for grants?

new GrantedAuthorityImpl(userRole)

Thanks.

Hi rhart,

as you mentioned in the code of class UserDetailsServiceImpl

Code:

---

public UserDetails loadUserByUsername(String username)
      throws UsernameNotFoundException, DataAccessException {
    try {
      User user = userApplicationService.findUserByUsername(username);
      return assembler.buildAuthenticatedUserDTOFromUser(user);
    } catch (NoResultException e) {
      throw new UsernameNotFoundException(e.getLocalizedMessage());
    }
  }

---

this method must return UserDetais object, I am not sure how can i do that....
Please help me as i am new to this.

Thanks in advance

Is what possible to modify the password before the authentication.

I've created a extended class of ´´DaoAuthenticationProvider´´ and initialized in security.xml:

<bean id="myAuthenticationProvider" class="es.gva.cit.terceros.security.provider.MyAut henticationProvider">
<security:custom-authentication-provider />
</bean>

But the definition of bean can't be accessible because of:

SAXParseException: cvc-elt.1: Cannot find the declaration of element 'beans'

What can I do to declare the bean element in the ´´security.xml´´ file?
Where I have to declare the new bean? And if i have to add this new bean to a ´´authenticationManager´´ bean and declare it too.