SecurityConfig.java

package com.student_loan.config;

import java.util.List;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.web.SecurityFilterChain;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.CorsConfigurationSource;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;

import com.student_loan.security.JwtFilter;
import com.student_loan.security.JwtUtil;

@Configuration
@EnableWebSecurity
@Profile("!test")
public class SecurityConfig {

    private final JwtUtil jwtUtil;
    
    public SecurityConfig(JwtUtil jwtUtil) {
        this.jwtUtil = jwtUtil;
    }

    @Bean
    public BCryptPasswordEncoder bCryptPasswordEncoder() {
        return new BCryptPasswordEncoder();
    }

    @Bean
    public CorsConfigurationSource corsConfigurationSource() {
        CorsConfiguration cfg = new CorsConfiguration();
        cfg.setAllowedOrigins(List.of("http://localhost:3000"));
        cfg.setAllowedMethods(List.of("GET",    "POST","PUT","DELETE","OPTIONS"));
        cfg.setAllowedHeaders(List.of("Authorization","Content-Type"));
        cfg.setAllowCredentials(true);

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

    @Bean
    public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
        http
            .cors().and()
            .csrf().disable()
            .authorizeHttpRequests(auth -> auth
            .requestMatchers(
                "/users/login",
                "/users/register",
                "/api/ranking",
                "/images/**",
                "/items/**",
                "/users"
            ).permitAll()
            .anyRequest().authenticated()
            )
            .addFilterBefore(
               new JwtFilter(jwtUtil),
               UsernamePasswordAuthenticationFilter.class
            );
        return http.build();
    }
}