UserAuthenticationProvider.java

/*
 *  The MIT License
 * 
 *  Copyright 2011 Michaël Schwartz <m.schwartz@epokmedia.fr>.
 * 
 *  Permission is hereby granted, free of charge, to any person obtaining a copy
 *  of this software and associated documentation files (the "Software"), to deal
 *  in the Software without restriction, including without limitation the rights
 *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 *  copies of the Software, and to permit persons to whom the Software is
 *  furnished to do so, subject to the following conditions:
 * 
 *  The above copyright notice and this permission notice shall be included in
 *  all copies or substantial portions of the Software.
 * 
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 *  THE SOFTWARE.
 */
package miage.ecom.web.security;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import javax.ejb.EJB;
import miage.ecom.entity.Customer;
import miage.ecom.session.CustomerFacadeLocal;
import org.springframework.security.authentication.BadCredentialsException;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.authentication.dao.AbstractUserDetailsAuthenticationProvider;
import org.springframework.security.authentication.dao.DaoAuthenticationProvider;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.GrantedAuthorityImpl;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UsernameNotFoundException;


/**
 *
 * @author Schwartz Michaël <m.schwartz@epokmedia.fr>
 */
public class UserAuthenticationProvider extends AbstractUserDetailsAuthenticationProvider {

	@EJB
	private CustomerFacadeLocal customerFacade;
	
	@Override
	protected void additionalAuthenticationChecks(UserDetails ud,
												  UsernamePasswordAuthenticationToken authentication) throws AuthenticationException {
		
		if (authentication.getCredentials() == null) {
            logger.debug("Authentication failed: no credentials provided");

            throw new BadCredentialsException(messages.getMessage(
                    "AbstractUserDetailsAuthenticationProvider.badCredentials", "Bad credentials"),null);
        }

        String presentedPassword = authentication.getCredentials().toString();
		
        if (customerFacade.authenticate(ud.getUsername(), presentedPassword) == null) {
            logger.debug("Authentication failed: password does not match stored value");

            throw new BadCredentialsException(messages.getMessage(
                    "AbstractUserDetailsAuthenticationProvider.badCredentials", "Bad credentials"),null);
        }
		
	}

	@Override
	protected UserDetails retrieveUser(String login,
									   UsernamePasswordAuthenticationToken upat) throws AuthenticationException {
		
		Customer customer = customerFacade.findByLogin(login);
		UserDetails user;
		List<GrantedAuthority> authorities = new ArrayList<GrantedAuthority>();
		authorities.add(new GrantedAuthorityImpl("ROLE_USER"));
		
		if (customer == null) {
            throw new UsernameNotFoundException("Nom d'utilisateur ou mot de passe incorrect");
        }
		
		user = new User(customer.getLogin(), 
						customer.getPassword(), 
						true,
						true, 
						true, 
						true, 
						authorities);
		
        return user;
	}

	
}