SecurityConfig.java

package com.example.triptalk.global.config;

import com.example.triptalk.global.security.jwt.JwtAuthenticationFilter;
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.config.annotation.web.configurers.AbstractHttpConfigurer;
import org.springframework.security.config.http.SessionCreationPolicy;
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 org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.CorsConfigurationSource;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;

import java.util.Arrays;

@Configuration
@EnableWebSecurity
@RequiredArgsConstructor
public class SecurityConfig {

    private final JwtAuthenticationFilter jwtAuthenticationFilter;

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

    @Bean
    public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
        return http
                .cors(cors -> cors.configurationSource(corsConfigurationSource()))
                .csrf(AbstractHttpConfigurer::disable)
                .sessionManagement(session -> session.sessionCreationPolicy(SessionCreationPolicy.STATELESS))
                .authorizeHttpRequests(auth -> auth
                        // 인증 관련 API는 모두 허용
                        .requestMatchers("/api/auth/**").permitAll()
                        // 여행지 조회는 비회원도 가능
                        .requestMatchers("/api/trip-places/**").permitAll()
                        // 항공권 조회는 비회원도 가능
                        .requestMatchers("/api/flights/**").permitAll()
                        // 호텔 조회는 비회원도 가능
                        .requestMatchers("/api/accommodations/**").permitAll()
                        // Swagger UI 접근 허용
                        .requestMatchers(
                                "/swagger-ui/**",
                                "/v3/api-docs/**",
                                "/swagger-ui.html",
                                "/swagger-resources/**",
                                "/webjars/**"
                        ).permitAll()
                        // 나머지는 인증 필요
                        .anyRequest().authenticated())
                .addFilterBefore(jwtAuthenticationFilter, UsernamePasswordAuthenticationFilter.class)
                .build();
    }

    @Bean
    public CorsConfigurationSource corsConfigurationSource() {
        CorsConfiguration configuration = new CorsConfiguration();
        configuration.setAllowedOriginPatterns(Arrays.asList("*"));
        configuration.setAllowedMethods(Arrays.asList("GET", "POST", "PUT", "PATCH", "DELETE", "OPTIONS"));
        configuration.setAllowedHeaders(Arrays.asList("*"));
        configuration.setAllowCredentials(true);
        configuration.setMaxAge(3600L);

        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        source.registerCorsConfiguration("/**", configuration);
        return source;
    }
}