creating my own user entity - angularjs

Question

I wish to make my own ' user ' entity to log in the application.
what I want to know is that if it's possible and if it is possible then where should I take precaution, which points should I consider and which files I would need to modify?

Answer 1

You need create a userclass by implementing UserDetailsService like
#Transactional
#Override
public UserDetails loadUserByUsername(String username)
throws UsernameNotFoundException {
MyUser details = userDao.getUser(username);
Collection<simplegrantedauthority> authorities = new ArrayList<simplegrantedauthority>();
SimpleGrantedAuthority userAuthority = new SimpleGrantedAuthority(
"ROLE_USER");
SimpleGrantedAuthority adminAuthority = new SimpleGrantedAuthority(
"ROLE_ADMIN");
if (details.getRole().equals("user"))
authorities.add(userAuthority);
else if (details.getRole().equals("admin")) {
authorities.add(userAuthority);
authorities.add(adminAuthority);
}
UserDetails user = new User(details.getUsername(),
details.getPassword(), true, true, true, true, authorities);
return user;
}
}
an then configure spring to use your customuser object... like
<authentication-manager>
<authentication-provider user-service-ref="authService">
</authentication-provider>
</authentication-manager>
Full example can be found at Spring Custom User with DAO and Entity

Answer 2

You could create a user service extending UserDetailsService, and then create your UserDetail object.
It would be similar to this.
Create you User class:
public class MyUserDetails implements UserDetails {
private UserEntity user;
private List<GrantedAuthority> authorities;
/**
* Constructor
*/
public MyUserDetails(UserEntity user) {
this.user = user;
this.authorities = Arrays.asList(new SimpleGrantedAuthority(user.getRole().name()));
}
/* (non-Javadoc)
* #see org.springframework.security.core.userdetails.UserDetails#getAuthorities()
*/
#Override
public Collection<? extends GrantedAuthority> getAuthorities() {
return authorities;
}
/* (non-Javadoc)
* #see org.springframework.security.core.userdetails.UserDetails#getPassword()
*/
#Override
public String getPassword() {
return user.getPassword();
}
/* (non-Javadoc)
* #see org.springframework.security.core.userdetails.UserDetails#getUsername()
*/
#Override
public String getUsername() {
return user.getEmail();
}
/* (non-Javadoc)
* #see org.springframework.security.core.userdetails.UserDetails#isAccountNonExpired()
*/
#Override
public boolean isAccountNonExpired() {
return true;
}
/* (non-Javadoc)
* #see org.springframework.security.core.userdetails.UserDetails#isAccountNonLocked()
*/
#Override
public boolean isAccountNonLocked() {
return !user.isLocked();
}
/* (non-Javadoc)
* #see org.springframework.security.core.userdetails.UserDetails#isCredentialsNonExpired()
*/
#Override
public boolean isCredentialsNonExpired() {
return !user.isExpired();
}
/* (non-Javadoc)
* #see org.springframework.security.core.userdetails.UserDetails#isEnabled()
*/
#Override
public boolean isEnabled() {
return user.isEnabled();
}
/**
* #return the user
*/
public UserEntity getUser() {
return user;
}
/**
* #param user the user to set
*/
public void setUser(UserEntity user) {
this.user = user;
}
}
Then you should create your UserDetailsService:
#Service
public class MyUserDetailsService implements UserDetailsService {
#Autowired
private UserRepository userRepo;
/*
* (non-Javadoc)
* #see org.springframework.security.core.userdetails.UserDetailsService#loadUserByUsername(java.lang.String)
*/
#Override
public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
UserEntity user = userDao.findByEmail(username);
if (user == null) {
LOGGER.warn("User {} does not exist in our database", username);
throw new UsernameNotFoundException("User not found.");
}
return new MyUserDetails(user);
}
}
And finally you should add the configuration for Spring security to use your service:
#Configuration
#EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
#Autowired
private MyUserDetailsService userDetailsService;
#Override
public void configure(AuthenticationManagerBuilder auth) throws Exception {
auth.userDetailsService(userDetailsService).passwordEncoder(new Md5PasswordEncoder());
}
}