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Question

I’m setting a Spring Security configuration with JWT and I need to create a custom authentication provider and a custom user details service, but in security config class is generating a cyclic dependency beetween them…

SecurityConfig.class

package io.github.felipeemerson.openmuapi.configuration;

import com.nimbusds.jose.jwk.JWK;
import com.nimbusds.jose.jwk.JWKSet;
import com.nimbusds.jose.jwk.RSAKey;
import com.nimbusds.jose.jwk.source.ImmutableJWKSet;
import com.nimbusds.jose.jwk.source.JWKSource;
import com.nimbusds.jose.proc.SecurityContext;
import io.github.felipeemerson.openmuapi.entities.CustomUserDetails;
import io.github.felipeemerson.openmuapi.services.AccountDetailsService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.AuthenticationProvider;
import org.springframework.security.authentication.dao.DaoAuthenticationProvider;
import org.springframework.security.config.Customizer;
import org.springframework.security.config.annotation.authentication.configuration.AuthenticationConfiguration;
import org.springframework.security.config.annotation.method.configuration.EnableMethodSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configurers.AbstractHttpConfigurer;
import org.springframework.security.config.annotation.web.configurers.oauth2.server.resource.OAuth2ResourceServerConfigurer;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.oauth2.jwt.JwtDecoder;
import org.springframework.security.oauth2.jwt.JwtEncoder;
import org.springframework.security.oauth2.jwt.NimbusJwtDecoder;
import org.springframework.security.oauth2.jwt.NimbusJwtEncoder;
import org.springframework.security.oauth2.server.resource.web.BearerTokenAuthenticationEntryPoint;
import org.springframework.security.oauth2.server.resource.web.access.BearerTokenAccessDeniedHandler;
import org.springframework.security.web.SecurityFilterChain;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

import java.security.interfaces.RSAPrivateKey;
import java.security.interfaces.RSAPublicKey;

@Configuration
@EnableWebSecurity
public class SecurityConfig {

    @Value("${jwt.public.key}")
    private RSAPublicKey key;

    @Value("${jwt.private.key}")
    private RSAPrivateKey priv;

    @Autowired
    private UserDetailsService userDetailsService;

    @Autowired
    private AuthEntryPointJwt unauthorizedHandler;

    @Autowired
    private CustomAuthenticationProvider customAuthenticationProvider;

    @Bean
    public AuthTokenFilter authenticationJwTokenFilter() {
        return new AuthTokenFilter();
    }

    @Bean
    public AuthenticationManager authenticationManager() throws Exception {
        return customAuthenticationProvider::authenticate;
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }

    @Bean
    public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
        http
                .csrf(AbstractHttpConfigurer::disable)
                .httpBasic(Customizer.withDefaults())
                .oauth2ResourceServer((oauth2) -> oauth2
                        .jwt(Customizer.withDefaults())
                )
                .exceptionHandling(exception -> exception.authenticationEntryPoint(unauthorizedHandler))
                .sessionManagement((session) -> session.sessionCreationPolicy(SessionCreationPolicy.STATELESS))
                .exceptionHandling((exceptions) -> exceptions
                        .authenticationEntryPoint(new BearerTokenAuthenticationEntryPoint())
                        .accessDeniedHandler(new BearerTokenAccessDeniedHandler())
                )
                .authorizeHttpRequests(auth ->auth
                        .requestMatchers("/login").permitAll()
                        .anyRequest().authenticated()
                )
                .authenticationProvider(customAuthenticationProvider)
                .addFilterBefore(authenticationJwTokenFilter(), UsernamePasswordAuthenticationFilter.class);

        return http.build();
    }

    @Bean
    public JwtDecoder jwtDecoder() {
        return NimbusJwtDecoder.withPublicKey(this.key).build();
    }

    @Bean
    public JwtEncoder jwtEncoder() {
        JWK jwk = new RSAKey.Builder(this.key).privateKey(this.priv).build();
        JWKSource<SecurityContext> jwks = new ImmutableJWKSet<>(new JWKSet(jwk));
        return new NimbusJwtEncoder(jwks);
    }

}

UserDetailsService.class

package io.github.felipeemerson.openmuapi.services;

import io.github.felipeemerson.openmuapi.entities.Account;
import io.github.felipeemerson.openmuapi.entities.CustomUserDetails;
import io.github.felipeemerson.openmuapi.exceptions.BadRequestException;
import io.github.felipeemerson.openmuapi.repositories.AccountRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
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 java.util.Optional;
import java.util.Set;

@Service
public class AccountDetailsService implements UserDetailsService {

    @Autowired
    private AccountRepository accountRepository;

    @Override
    public UserDetails loadUserByUsername(String username) {
        return loadUser(username);
    }

    private UserDetails loadUser(String username) throws BadRequestException {
        Optional<Account> userAccountOpt = accountRepository.findByLoginName(username);

        if (userAccountOpt.isEmpty()){
            return null;
        }

        Account account = userAccountOpt.get();

        return new CustomUserDetails(account.getLoginName(), account.getPasswordHash(), true, Set.of(new SimpleGrantedAuthority("ROLE_USER")));
    }
}

CustomAuthenticationProvider.class

package io.github.felipeemerson.openmuapi.configuration;

import io.github.felipeemerson.openmuapi.exceptions.BadRequestException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.AuthenticationProvider;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.stereotype.Component;

@Component
public class CustomAuthenticationProvider implements AuthenticationProvider {

    @Autowired
    private final UserDetailsService userDetailsService;

    private final PasswordEncoder passwordEncoder;

    public CustomAuthenticationProvider(UserDetailsService userDetailsService,
                                        PasswordEncoder passwordEncoder) {
        this.userDetailsService = userDetailsService;
        this.passwordEncoder = passwordEncoder;
    }

    @Override
    public Authentication authenticate(Authentication authentication) throws BadRequestException {
        String username = authentication.getName();
        String password = authentication.getCredentials().toString();

        UserDetails userDetails = userDetailsService.loadUserByUsername(username);

        System.out.println(password);
        System.out.println(userDetails.getPassword());

        if (userDetails == null || !passwordEncoder.matches(password, userDetails.getPassword())) {
            throw new BadRequestException("Login or password incorrect.");
        }

        Authentication authenticated = new UsernamePasswordAuthenticationToken(
                userDetails, password, userDetails.getAuthorities());
        return authenticated;
    }

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

I tried to use @Lazy in UserDetailsService dependency in CustomAuthenticationProvider and not resolved. Also tried to use @Lazy in SecurityConfig dependencies…

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Danh mục

How to fix this cylic dependency in Spring?