Spring boot basic authentication

Question

I\'m using spring boot security to help me to make authentication...

    org.springframework.boot
    

        

Answer 1

I would start by reading the spring boot security documentation. Below you will find a link.

https://docs.spring.io/spring-security/site/docs/current/guides/html5/helloworld-boot.html

Answer 2

Change add method in SpringSecurityConfig.java like Below

    @Configuration
    @EnableWebSecurity
    public class SpringSecurityConfig extends WebSecurityConfigurerAdapter {
    @Autowired
    private UserAuthenticationService userAuthenticationService;

    @Autowired
    private CustomAuthenticationProvider authenticationProvider;

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
        auth.authenticationProvider(this.authenticationProvider).userDetailsService(this.userAuthenticationService);
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
        .cors().and().csrf().disable().authorizeRequests()
        .anyRequest().authenticated().and().httpBasic();
    }}

Create CustomAuthenticationProvider.

    @Component
public class CustomAuthenticationProvider implements AuthenticationProvider {

    @Autowired
    private UserAuthenticationService userAuthenticationService;

    @Override
    public boolean supports(Class<?> authentication) {
        return (UsernamePasswordAuthenticationToken.class.isAssignableFrom(authentication));
    }

    @Override
    public Authentication authenticate(Authentication authentication) throws AuthenticationException {
        String emailId = authentication.getName();
        String password = (String) authentication.getCredentials();
        UserDetails user = this.userAuthenticationService.loadUserByUsername(emailId);
        if (user == null) {
            throw new UsernameNotFoundException("Username not found.");
        }
        //Your password encoder here
        if (!password.equals(user.getPassword())) {
            throw new UsernameNotFoundException("Wrong password.");
        }
        Collection<? extends GrantedAuthority> authorities = user.getAuthorities();
        return new UsernamePasswordAuthenticationToken(user, password, authorities);
    }}

Create Custom UserService

    @Service
public class UserAuthenticationService implements UserDetailsService {
    @Autowired
    private UserRepository userRepository;

    @Override
    public UserDetails loadUserByUsername(String email) throws UsernameNotFoundException {
        User user = userRepository.findByEmailAddressWithRole(email);
        if (user == null) {
            throw new UsernameNotFoundException("Username not found for " + email);
        }
        List<GrantedAuthority> grantedAuthorities = new ArrayList<GrantedAuthority>();
        for (Role roles : user.getRoles()) {
            grantedAuthorities.add(new SimpleGrantedAuthority(roles.getRoleName()));
        }
        return new UserAuthenticationWrapperDto(user.getId(), user.getEmailAddress(), user.getPassword(),
                user.getUserType(), user.getCompany().getId(), grantedAuthorities,user.getName());
    }}   

Answer 3

You need to permit access to the login endpoint (at least). E.g.

@Override
protected void configure(HttpSecurity http) throws Exception {
    http.authorizeRequests().antMatchers("/login", "/error").permitAll()
            .antMatchers("/**").authenticated().and().exceptionHandling()
            .authenticationEntryPoint(new LoginUrlAuthenticationEntryPoint("/login"));
}

If I were you I would remove the @EnableWebSecurity (and let Spring Boot do it's job) as well. And then in the login endpoint you need to set the security context, e.g.

@PostMapping
public void authenticate(@RequestParam Map<String, String> map,
        HttpServletRequest request, HttpServletResponse response) throws Exception {
    Authentication result = authService.authenticate(map.get("username"), map.get("password"));
    SecurityContextHolder.getContext().setAuthentication(result);
    handler.onAuthenticationSuccess(request, response, result);
}

The authService should throw BadCredentialsException if the user cannot be authenticated. Here's a sample app that I used in a blog once: https://github.com/dsyer/mustache-sample/blob/7be8459173d0b65b6d44d05f86e581d358ea9b2e/src/main/java/com/example/DemoApplication.java#L177