com.causecode.util.CustomUserDetailsService.groovy Maven / Gradle / Ivy

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nucleus is a Grails-Groovy plugin which contains utility methods, classes and endpoints.
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package com.causecode.util

import grails.plugin.springsecurity.SpringSecurityUtils
import grails.plugin.springsecurity.userdetails.GrailsUser
import grails.plugin.springsecurity.userdetails.GrailsUserDetailsService

import org.springframework.dao.DataAccessException
import org.springframework.security.core.authority.SimpleGrantedAuthority
import org.springframework.security.core.userdetails.UserDetails
import org.springframework.security.core.userdetails.UsernameNotFoundException

import com.causecode.user.Role
import com.causecode.user.User

/**
 * This service provides methods to get UserDetails by different fields.
 * @author Vishesh Duggar
 * @author Shashank Agrawal
 *
 */
class CustomUserDetailsService implements GrailsUserDetailsService {

    static final List NO_ROLES = [new SimpleGrantedAuthority(SpringSecurityUtils.NO_ROLE)]

    /**
     * Override method search user by username parameter passed and return user details.
     * @param username String value used to get user instance
     * @throws UsernameNotFoundException
     * @throws {@link DataAccessException}
     * @return GrailsUser for searched user instance. Throws exceptions if user not found
     * or data access exception error occurs.
     */
    @Override
    UserDetails loadUserByUsername(String username) throws UsernameNotFoundException, DataAccessException {
        User.withTransaction {
            // Case insensitive query support for MongoDB

            User userInstance = User.withCriteria(uniqueResult: true) {
                or {
                    ilike('username', username)
                    ilike('email', username)
                }

                maxResults(1)
            }

            if (!userInstance) {
                throw new UsernameNotFoundException("User not found $userInstance")
            }

            def authorities = userInstance.authorities.collect { Role roleInstance ->
                new SimpleGrantedAuthority(roleInstance.authority)
            }
            new GrailsUser(userInstance.username, userInstance.password, userInstance.enabled,
                    !userInstance.accountExpired, !userInstance.passwordExpired, !userInstance.accountLocked,
                    authorities ?: NO_ROLES, userInstance.id)
        }
    }

    /**
     * Override method search user by username parameter passed and return user details.
     * @param username String value used to get user instance
     * @param loadRoles Boolean field
     * @throws UsernameNotFoundException
     * @throws {@link DataAccessException}
     * @return GrailsUser for searched user instance. Throws exceptions if user not found or
     * data access exception error occurs.
     */
    @Override
    UserDetails loadUserByUsername(String username, boolean loadRoles)
            throws UsernameNotFoundException, DataAccessException {
        loadUserByUsername(username)
    }
}