fiscad/src/main/java/io/gmss/fiscad/configuration/SpringSecurityConfig.java

package io.gmss.fiscad.configuration;
import io.gmss.fiscad.security.JwtAuthenticationEntryPoint;
import io.gmss.fiscad.security.JwtAuthenticationFilter;
import lombok.RequiredArgsConstructor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationProvider;
import org.springframework.security.config.annotation.method.configuration.EnableMethodSecurity;
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.web.SecurityFilterChain;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.CorsConfigurationSource;

import java.util.List;

@EnableWebSecurity
@Configuration
@EnableMethodSecurity(securedEnabled = true, jsr250Enabled = true, prePostEnabled = true)
@RequiredArgsConstructor
public class SpringSecurityConfig {

    private final JwtAuthenticationEntryPoint jwtAuthenticationEntryPoint;
    private final AuthenticationProvider authenticationProvider;
    private final JwtAuthenticationFilter jwtAuthenticationFilter;

    private static final String[] PUBLIC_ENDPOINTS = {
            "/api/auth/login",
            "/api/open/**",
            "/api/synchronisation/references",
            "/v3/api-docs/**",
            "/swagger-ui/**",
            "/swagger-ui.html",
            "/error",
            "/api/**"   // A ENLEVER AVANT LA MISE EN PRODUCTION
    };

    @Bean
    public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {

        http
                // Désactivation CSRF car JWT stateless
                .csrf(AbstractHttpConfigurer::disable)

                // CORS configuration propre
                .cors(cors -> cors.configurationSource(corsConfigurationSource()))

                // Gestion des exceptions d’authentification
                .exceptionHandling(exception ->
                        exception.authenticationEntryPoint(jwtAuthenticationEntryPoint)
                )

                // Stateless session
                .sessionManagement(session ->
                        session.sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                )

                // Configuration des autorisations
                .authorizeHttpRequests(auth -> auth
                        // Autoriser les requêtes OPTIONS (CORS preflight)
                        .requestMatchers(HttpMethod.OPTIONS, "/**").permitAll()

                        // Endpoints publics
                        .requestMatchers(PUBLIC_ENDPOINTS).permitAll()

                        // Tout le reste nécessite authentification
                        .anyRequest().authenticated()
                )

                // Provider d’authentification
                .authenticationProvider(authenticationProvider)

                // Ajout du filtre JWT avant UsernamePasswordAuthenticationFilter
                .addFilterBefore(jwtAuthenticationFilter, UsernamePasswordAuthenticationFilter.class);

        return http.build();
    }

    /**
     * Configuration CORS centralisée.
     * ⚠️ En production, remplacer "*" par ton domaine frontend.
     */
    @Bean
    public CorsConfigurationSource corsConfigurationSource() {
        return request -> {
            CorsConfiguration configuration = new CorsConfiguration();

            configuration.setAllowedOrigins(List.of("*")); // ⚠️ restreindre en prod
            configuration.setAllowedMethods(List.of("GET", "POST", "PUT", "DELETE", "PATCH", "OPTIONS"));
            configuration.setAllowedHeaders(List.of("*"));
            configuration.setAllowCredentials(false);

            return configuration;
        };
    }
}



/*
import io.gmss.fiscad.security.JwtAuthenticationEntryPoint;
import io.gmss.fiscad.security.JwtAuthenticationFilter;
import lombok.RequiredArgsConstructor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationProvider;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
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.web.SecurityFilterChain;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
import org.springframework.web.cors.CorsConfiguration;

import java.util.Arrays;

import static org.springframework.security.config.http.SessionCreationPolicy.STATELESS;

@EnableWebSecurity
@Configuration
@EnableGlobalMethodSecurity(securedEnabled = true, jsr250Enabled = true, prePostEnabled = true)
@RequiredArgsConstructor
public class SpringSecurityConfig {
    private final JwtAuthenticationEntryPoint jwtAuthenticationEntryPoint;
    private final AuthenticationProvider authenticationProvider;
    private final JwtAuthenticationFilter jwtAuthenticationFilter;
    private static final String[] AUTH_WHITELIST = {
          //  "/api/**",
            "/api/auth/login",
            "/api/open/**",
            "/api/synchronisation/references",
            "/v3/api-docs/**",
            "/swagger-ui/**",
            "/swagger-ui.html",
            "/error"

    };


    @Bean
    public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
        http
                .cors(cors -> cors.configurationSource(request -> {
                    CorsConfiguration configuration = new CorsConfiguration();
                    configuration.setAllowedOrigins(Arrays.asList("*"));
                    configuration.setAllowedMethods(Arrays.asList("*"));
                    configuration.setAllowedHeaders(Arrays.asList("*"));
                    return configuration;
                }))
                .csrf(AbstractHttpConfigurer::disable)
//                .csrf(csrf -> {
//                    csrf.ignoringRequestMatchers("/api/**");
//                })
                .exceptionHandling(ex -> ex.authenticationEntryPoint(jwtAuthenticationEntryPoint))
                .authorizeHttpRequests(req ->
                        req
                                .requestMatchers(HttpMethod.OPTIONS, "/**").permitAll()
                                .requestMatchers(AUTH_WHITELIST).permitAll()
                                .anyRequest()
                                .authenticated()
                )
                .authenticationProvider(authenticationProvider)
                .sessionManagement(session -> session.sessionCreationPolicy(STATELESS))
                .addFilterBefore(jwtAuthenticationFilter, UsernamePasswordAuthenticationFilter.class)
        ;
        return http.build();
    }
}*/