tr.edu.gsu.peralab.mobilesensing.web.service.CustomUserDetailsService.java Source code

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Here is the source code for tr.edu.gsu.peralab.mobilesensing.web.service.CustomUserDetailsService.java

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/**This file is part of MobileSensingWeb project of Galatasaray University.
    
   MobileSensingWeb is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.
    
   MobileSensingWeb is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
    
   You should have received a copy of the GNU General Public License
   along with MobileSensingWeb.  If not, see <http://www.gnu.org/licenses/>.
 */

package tr.edu.gsu.peralab.mobilesensing.web.service;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;

import tr.edu.gsu.peralab.mobilesensing.web.dao.UserDAO;

/**
 * @author yalcin.yenigun
 * 
 *         This class contains methods for Authentication & Authorization with
 *         Spring security.
 * 
 */
@Service
public class CustomUserDetailsService implements UserDetailsService {

    @Autowired
    private UserDAO userDao;

    /* (non-Javadoc)
     * @see org.springframework.security.core.userdetails.UserDetailsService#loadUserByUsername(java.lang.String)
     */
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {

        tr.edu.gsu.peralab.mobilesensing.web.entity.User domainUser = userDao.retrieveUser(username);

        User user = null;
        boolean enabled = true;
        boolean accountNonExpired = true;
        boolean credentialsNonExpired = true;
        boolean accountNonLocked = true;

        if (domainUser != null) {
            user = new User(domainUser.getUserName(), domainUser.getPassword().toLowerCase(), enabled,
                    accountNonExpired, credentialsNonExpired, accountNonLocked,
                    getAuthorities(domainUser.getRights()));
        }
        return user;
    }

    /**
     * @param role
     * @return Credentials of the given role number
     */
    public List<String> getRoles(Integer role) {
        List<String> roles = new ArrayList<String>();
        if (role.intValue() == 1) {
            roles.add("ROLE_USER");
            roles.add("ROLE_ADMIN");
        } else if (role.intValue() == 0) {
            roles.add("ROLE_USER");
        }
        return roles;
    }

    /**
     * @param role
     * @return Authorities of given role
     * 
     */
    public Collection<? extends GrantedAuthority> getAuthorities(Integer role) {
        return getGrantedAuthorities(getRoles(role));
    }

    /**
     * @param roles
     * @return Granted authorities of given role
     */
    public static List<GrantedAuthority> getGrantedAuthorities(List<String> roles) {
        List<GrantedAuthority> authorities = new ArrayList<GrantedAuthority>();
        for (String role : roles) {
            authorities.add(new SimpleGrantedAuthority(role));
        }
        return authorities;
    }

}