SecurityConfig.java

package umc.study.config.security;

import lombok.RequiredArgsConstructor;
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.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.web.SecurityFilterChain;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
import umc.study.config.security.jwt.JwtAuthenticationFilter;
import umc.study.config.security.jwt.JwtTokenProvider;

// 우리가 직접 작성한 보안 설정이 Spring Security의 기본 설정보다 우선 적용
@EnableWebSecurity
@Configuration
@RequiredArgsConstructor
public class SecurityConfig {

    private final JwtTokenProvider jwtTokenProvider;

    @Bean
    public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
        http
                .authorizeHttpRequests((requests) -> requests
                        .requestMatchers("/", "/home", "/signup", "/css/**", "/users/**", "/members/signup", "/users/join", "/users/login", "/swagger-ui/**", "/v3/api-docs/**").permitAll()
                        .requestMatchers("/admin/**").hasRole("ADMIN")
                        .anyRequest().authenticated()
                )

                .formLogin((form) -> form
                        .loginPage("/login")
                        .defaultSuccessUrl("/home", true)
                        .permitAll()
                )
                .logout((logout) -> logout
                        .logoutUrl("/logout")
                        .logoutSuccessUrl("/login?logout")
                        .permitAll()
                )
                .csrf()
                .disable()
                .addFilterBefore(new JwtAuthenticationFilter(jwtTokenProvider), UsernamePasswordAuthenticationFilter.class);

        return http.build();
    }

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