WebSecurityConfig.java

package com.iluwatar.soa.security;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configurers.LogoutConfigurer;
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.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.provisioning.InMemoryUserDetailsManager;
import org.springframework.security.web.SecurityFilterChain;


@Configuration
@EnableWebSecurity
public class WebSecurityConfig {

  @Bean
  public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
    http
        .authorizeHttpRequests(requests -> requests
            .requestMatchers("/login").permitAll()
            .anyRequest().authenticated()
        )
        .formLogin(form -> form
            .defaultSuccessUrl("/home/greeting", true)
            .permitAll()
        )
        .logout(LogoutConfigurer::permitAll);

    return http.build();
  }


  @Bean
  public UserDetailsService userDetailsService() {
    UserDetails user =
        User.builder()
            .username("user")
            .password(passwordEncoder().encode("password"))
            .roles("USER")
            .build();
    UserDetails admin =
        User.builder()
            .username("admin")
            .password(passwordEncoder().encode("password"))
            .roles("USER", "ADMIN")
            .build();
    return new InMemoryUserDetailsManager(user, admin);
  }

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