/**
 * Swagger API文檔相關配置
 * Created by macro on 2018/4/26.
 */
@Configuration
@EnableSwagger2
public class SwaggerConfig extends BaseSwaggerConfig {
    @Bean
    public static BeanPostProcessor springfoxHandlerProviderBeanPostProcessor() {
        return new BeanPostProcessor() {
            @Override
            public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
                if (bean instanceof WebMvcRequestHandlerProvider || bean instanceof WebFluxRequestHandlerProvider) {
                    customizeSpringfoxHandlerMappings(getHandlerMappings(bean));
                }
                return bean;
            }
            private <T extends RequestMappingInfoHandlerMapping> void customizeSpringfoxHandlerMappings(List<T> mappings) {
                List<T> copy = mappings.stream()
                        .filter(mapping -> mapping.getPatternParser() == null)
                        .collect(Collectors.toList());
                mappings.clear();
                mappings.addAll(copy);
            }
            @SuppressWarnings("unchecked")
            private List<RequestMappingInfoHandlerMapping> getHandlerMappings(Object bean) {
                try {
                    Field field = ReflectionUtils.findField(bean.getClass(), "handlerMappings");
                    field.setAccessible(true);
                    return (List<RequestMappingInfoHandlerMapping>) field.get(bean);
                } catch (IllegalArgumentException | IllegalAccessException e) {
                    throw new IllegalStateException(e);
                }
            }
        };
    }
}

/**
 * SpringSecurity 5.4.x以上新用法配置
 * 為避免循環(huán)依賴，僅用于配置HttpSecurity
 * Created by macro on 2019/11/5.
 */
@Configuration
public class SecurityConfig {
    @Autowired
    private IgnoreUrlsConfig ignoreUrlsConfig;
    @Autowired
    private RestfulAccessDeniedHandler restfulAccessDeniedHandler;
    @Autowired
    private RestAuthenticationEntryPoint restAuthenticationEntryPoint;
    @Autowired
    private JwtAuthenticationTokenFilter jwtAuthenticationTokenFilter;
    @Autowired
    private DynamicSecurityService dynamicSecurityService;
    @Autowired
    private DynamicSecurityFilter dynamicSecurityFilter;
    @Bean
    SecurityFilterChain filterChain(HttpSecurity httpSecurity) throws Exception {
        ExpressionUrlAuthorizationConfigurer<HttpSecurity>.ExpressionInterceptUrlRegistry registry = httpSecurity
                .authorizeRequests();
        //不需要保護的資源路徑允許訪問
        for (String url : ignoreUrlsConfig.getUrls()) {
            registry.antMatchers(url).permitAll();
        }
        //允許跨域請求的OPTIONS請求
        registry.antMatchers(HttpMethod.OPTIONS)
                .permitAll();
        // 任何請求需要身份認證
        registry.and()
                .authorizeRequests()
                .anyRequest()
                .authenticated()
                // 關閉跨站請求防護及不使用session
                .and()
                .csrf()
                .disable()
                .sessionManagement()
                .sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                // 自定義權限拒絕處理類
                .and()
                .exceptionHandling()
                .accessDeniedHandler(restfulAccessDeniedHandler)
                .authenticationEntryPoint(restAuthenticationEntryPoint)
                // 自定義權限攔截器JWT過濾器
                .and()
                .addFilterBefore(jwtAuthenticationTokenFilter, UsernamePasswordAuthenticationFilter.class);
        //有動態(tài)權限配置時添加動態(tài)權限校驗過濾器
        if(dynamicSecurityService!=null){
            registry.and().addFilterBefore(dynamicSecurityFilter, FilterSecurityInterceptor.class);
        }
        return httpSecurity.build();
    }
}

/**
 * MyBatisPlus代碼生成器
 * Created by macro on 2020/8/20.
 */
public class MyBatisPlusGenerator {
    /**
     * 初始化全局配置
     */
    private static GlobalConfig initGlobalConfig(String projectPath) {
        GlobalConfig globalConfig = new GlobalConfig();
        globalConfig.setOutputDir(projectPath + "/src/main/java");
        globalConfig.setAuthor("macro");
        globalConfig.setOpen(false);
        globalConfig.setSwagger2(true);
        globalConfig.setBaseResultMap(true);
        globalConfig.setFileOverride(true);
        globalConfig.setDateType(DateType.ONLY_DATE);
        globalConfig.setEntityName("%s");
        globalConfig.setMapperName("%sMapper");
        globalConfig.setXmlName("%sMapper");
        globalConfig.setServiceName("%sService");
        globalConfig.setServiceImplName("%sServiceImpl");
        globalConfig.setControllerName("%sController");
        return globalConfig;
    }
}

/**
 * MyBatisPlus代碼生成器
 * Created by macro on 2020/8/20.
 */
public class MyBatisPlusGenerator {
    /**
     * 初始化全局配置
     */
    private static GlobalConfig initGlobalConfig(String projectPath) {
        return new GlobalConfig.Builder()
                .outputDir(projectPath + "/src/main/java")
                .author("macro")
                .disableOpenDir()
                .enableSwagger()
                .fileOverride()
                .dateType(DateType.ONLY_DATE)
                .build();
    }
}

spring:
  main:
    allow-circular-references: true

/**
 * SpringSecurity 5.4.x以上新用法配置
 * 為避免循環(huán)依賴，僅用于配置HttpSecurity
 * Created by macro on 2019/11/5.
 */
@Configuration
public class SecurityConfig {
    @Autowired
    private IgnoreUrlsConfig ignoreUrlsConfig;
    @Autowired
    private RestfulAccessDeniedHandler restfulAccessDeniedHandler;
    @Autowired
    private RestAuthenticationEntryPoint restAuthenticationEntryPoint;
    @Autowired
    private JwtAuthenticationTokenFilter jwtAuthenticationTokenFilter;
    @Autowired
    private DynamicSecurityService dynamicSecurityService;
    @Autowired
    private DynamicSecurityFilter dynamicSecurityFilter;
    @Bean
    SecurityFilterChain filterChain(HttpSecurity httpSecurity) throws Exception {
        //省略若干代碼...
        return httpSecurity.build();
    }
}

/**
 * SpringSecurity通用配置
 * 包括通用Bean、Security通用Bean及動態(tài)權限通用Bean
 * Created by macro on 2022/5/20.
 */
@Configuration
public class CommonSecurityConfig {
    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }
    @Bean
    public IgnoreUrlsConfig ignoreUrlsConfig() {
        return new IgnoreUrlsConfig();
    }
    @Bean
    public JwtTokenUtil jwtTokenUtil() {
        return new JwtTokenUtil();
    }
    @Bean
    public RestfulAccessDeniedHandler restfulAccessDeniedHandler() {
        return new RestfulAccessDeniedHandler();
    }
    @Bean
    public RestAuthenticationEntryPoint restAuthenticationEntryPoint() {
        return new RestAuthenticationEntryPoint();
    }
    @Bean
    public JwtAuthenticationTokenFilter jwtAuthenticationTokenFilter(){
        return new JwtAuthenticationTokenFilter();
    }
    @Bean
    public DynamicAccessDecisionManager dynamicAccessDecisionManager() {
        return new DynamicAccessDecisionManager();
    }
    @Bean
    public DynamicSecurityMetadataSource dynamicSecurityMetadataSource() {
        return new DynamicSecurityMetadataSource();
    }
    @Bean
    public DynamicSecurityFilter dynamicSecurityFilter(){
        return new DynamicSecurityFilter();
    }
}

/**
 * 后臺管理員管理Service實現(xiàn)類
 * Created by macro on 2018/4/26.
 */
@Service
public class UmsAdminServiceImpl extends ServiceImpl<UmsAdminMapper,UmsAdmin> implements UmsAdminService {
    @Autowired
    private UmsAdminCacheService adminCacheService;
}
/**
 * 后臺用戶緩存管理Service實現(xiàn)類
 * Created by macro on 2020/3/13.
 */
@Service
public class UmsAdminCacheServiceImpl implements UmsAdminCacheService {
    @Autowired
    private UmsAdminService adminService;
}

/**
 * Spring工具類
 * Created by macro on 2020/3/3.
 */
@Component
public class SpringUtil implements ApplicationContextAware {
    private static ApplicationContext applicationContext;
    // 獲取applicationContext
    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }
    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        if (SpringUtil.applicationContext == null) {
            SpringUtil.applicationContext = applicationContext;
        }
    }
    // 通過name獲取Bean
    public static Object getBean(String name) {
        return getApplicationContext().getBean(name);
    }
    // 通過class獲取Bean
    public static <T> T getBean(Class<T> clazz) {
        return getApplicationContext().getBean(clazz);
    }
    // 通過name,以及Clazz返回指定的Bean
    public static <T> T getBean(String name, Class<T> clazz) {
        return getApplicationContext().getBean(name, clazz);
    }
}

/**
 * 后臺管理員管理Service實現(xiàn)類
 * Created by macro on 2018/4/26.
 */
@Service
public class UmsAdminServiceImpl extends ServiceImpl<UmsAdminMapper,UmsAdmin> implements UmsAdminService {
    @Override
    public UmsAdminCacheService getCacheService() {
        return SpringUtil.getBean(UmsAdminCacheService.class);
    }
}

/**
 * 全局跨域配置
 * Created by macro on 2019/7/27.
 */
@Configuration
public class GlobalCorsConfig {
    /**
     * 允許跨域調用的過濾器
     */
    @Bean
    public CorsFilter corsFilter() {
        CorsConfiguration config = new CorsConfiguration();
        //允許所有域名進行跨域調用
        config.addAllowedOriginPattern("*");
        //該用法在SpringBoot 2.7.0中已不再支持
        //config.addAllowedOrigin("*");
        //允許跨越發(fā)送cookie
        config.setAllowCredentials(true);
        //放行全部原始頭信息
        config.addAllowedHeader("*");
        //允許所有請求方法跨域調用
        config.addAllowedMethod("*");
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        source.registerCorsConfiguration("/**", config);
        return new CorsFilter(source);
    }
}