Spring Security 6 【11-跨域配置】

Spring Security 6 跨域配置全面指南

下面我将详细介绍在 Spring Security 6 中如何配置跨域资源共享(CORS),并提供完整的代码实现,涵盖基础配置、高级策略、安全优化等核心内容。

一、跨域配置核心概念

1. CORS 关键配置项

配置项描述默认值安全建议
allowedOrigins允许访问的源列表*避免使用*,指定具体域名
allowedMethods允许的HTTP方法GET, HEAD, POST按需开放必要方法
allowedHeaders允许的请求头所有简单头限制为必要头
exposedHeaders暴露给客户端的响应头仅暴露必要头
allowCredentials是否允许发送凭证false需要时开启,需配合特定源
maxAge预检请求缓存时间(秒)1800合理设置减少预检请求

2. 配置位置选择

配置位置适用场景优先级
Spring Security 配置需要安全控制的API最高
Spring MVC 配置普通Web接口中等
@CrossOrigin 注解单个控制器方法最低

二、完整代码实现

1. Spring Security 级别配置(推荐)

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.web.SecurityFilterChain;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.CorsConfigurationSource;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;

@Configuration
public class SecurityConfig {

    @Bean
    public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
        http
            // 启用CORS并配置源
            .cors(cors -> cors.configurationSource(corsConfigurationSource()))
            
            // 禁用CSRF(REST API通常不需要)
            .csrf(csrf -> csrf.disable())
            
            .authorizeHttpRequests(auth -> auth
                .requestMatchers("/public/**").permitAll()
                .anyRequest().authenticated()
            )
            .httpBasic(); // 或其他认证方式
        
        return http.build();
    }

    // CORS配置源
    @Bean
    public CorsConfigurationSource corsConfigurationSource() {
        CorsConfiguration config = new CorsConfiguration();
        
        // 允许的源(生产环境应替换为实际域名)
        config.setAllowedOrigins(Arrays.asList(
            "https://www.example.com",
            "https://app.example.com",
            "http://localhost:3000"
        ));
        
        // 允许的方法
        config.setAllowedMethods(Arrays.asList(
            "GET", "POST", "PUT", "PATCH", "DELETE", "OPTIONS"
        ));
        
        // 允许的请求头
        config.setAllowedHeaders(Arrays.asList(
            "Authorization", "Content-Type", "X-Requested-With", 
            "Accept", "X-CSRF-Token", "X-API-Version"
        ));
        
        // 暴露的响应头
        config.setExposedHeaders(Arrays.asList(
            "Content-Disposition", "X-Content-Disposition",
            "X-RateLimit-Limit", "X-RateLimit-Remaining"
        ));
        
        // 允许携带凭证(cookies等)
        config.setAllowCredentials(true);
        
        // 预检请求缓存时间(30分钟)
        config.setMaxAge(1800L);
        
        // 为所有路径应用此配置
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        source.registerCorsConfiguration("/**", config);
        
        return source;
    }
}

2. Spring MVC 级别配置

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

@Configuration
public class WebMvcConfig implements WebMvcConfigurer {

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/api/**") // 仅对/api路径生效
            .allowedOrigins(
                "https://www.example.com",
                "http://localhost:3000"
            )
            .allowedMethods("GET", "POST", "PUT", "DELETE")
            .allowedHeaders("Authorization", "Content-Type")
            .exposedHeaders("X-Custom-Header")
            .allowCredentials(true)
            .maxAge(3600);
    }
}

3. 控制器方法级别配置

import org.springframework.web.bind.annotation.*;

@RestController
@RequestMapping("/api/products")
public class ProductController {

    // 单个方法配置CORS
    @CrossOrigin(
        origins = "https://www.example.com",
        methods = {RequestMethod.GET, RequestMethod.POST},
        allowedHeaders = "Authorization",
        exposedHeaders = "X-Custom-Header",
        allowCredentials = "true",
        maxAge = 1800
    )
    @PostMapping
    public Product createProduct(@RequestBody Product product) {
        // 创建产品逻辑
    }
}

三、高级跨域配置

1. 动态源配置(从数据库加载)

@Bean
public CorsConfigurationSource corsConfigurationSource(DomainRepository domainRepo) {
    UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
    
    // 默认配置(拒绝所有)
    CorsConfiguration defaultConfig = new CorsConfiguration();
    defaultConfig.setAllowedOrigins(Collections.emptyList());
    source.registerCorsConfiguration("/**", defaultConfig);
    
    // 从数据库加载允许的域名
    List<String> allowedDomains = domainRepo.findAllApprovedDomains()
        .stream()
        .map(Domain::getUrl)
        .toList();
    
    if (!allowedDomains.isEmpty()) {
        CorsConfiguration config = new CorsConfiguration();
        config.setAllowedOrigins(allowedDomains);
        config.setAllowedMethods(Arrays.asList("GET", "POST", "PUT", "DELETE"));
        config.setAllowedHeaders(Collections.singletonList("*"));
        config.setMaxAge(3600L);
        
        // 应用配置到API路径
        source.registerCorsConfiguration("/api/**", config);
    }
    
    return source;
}

2. 环境特定的CORS配置

@Bean
@Profile("dev")
public CorsConfigurationSource devCorsConfigurationSource() {
    CorsConfiguration config = new CorsConfiguration();
    config.setAllowedOrigins(Collections.singletonList("*"));
    config.setAllowedMethods(Collections.singletonList("*"));
    config.setAllowedHeaders(Collections.singletonList("*"));
    
    UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
    source.registerCorsConfiguration("/**", config);
    return source;
}

@Bean
@Profile("prod")
public CorsConfigurationSource prodCorsConfigurationSource() {
    CorsConfiguration config = new CorsConfiguration();
    config.setAllowedOrigins(Arrays.asList(
        "https://www.example.com",
        "https://app.example.com"
    ));
    config.setAllowedMethods(Arrays.asList("GET", "POST", "PUT", "DELETE"));
    config.setAllowedHeaders(Arrays.asList("Authorization", "Content-Type"));
    config.setAllowCredentials(true);
    config.setMaxAge(3600L);
    
    UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
    source.registerCorsConfiguration("/api/**", config);
    return source;
}

3. 基于请求的CORS配置

@Bean
public CorsConfigurationSource corsConfigurationSource() {
    return new CorsConfigurationSource() {
        @Override
        public CorsConfiguration getCorsConfiguration(HttpServletRequest request) {
            // 根据请求路径动态配置
            if (request.getRequestURI().startsWith("/public/")) {
                CorsConfiguration config = new CorsConfiguration();
                config.setAllowedOrigins(Collections.singletonList("*"));
                config.setAllowedMethods(Collections.singletonList("GET"));
                return config;
            }
            
            // 需要认证的API
            if (request.getRequestURI().startsWith("/api/")) {
                CorsConfiguration config = new CorsConfiguration();
                config.setAllowedOrigins(Arrays.asList("https://app.example.com"));
                config.setAllowedMethods(Arrays.asList("GET", "POST", "PUT", "DELETE"));
                config.setAllowCredentials(true);
                return config;
            }
            
            return null; // 其他路径使用默认配置
        }
    };
}

四、安全增强配置

1. 防止跨域攻击

@Bean
public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
    http
        .cors(cors -> cors.configurationSource(corsConfigurationSource()))
        .headers(headers -> headers
            // 设置安全头
            .contentSecurityPolicy(csp -> csp
                .policyDirectives("default-src 'self'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline'; img-src 'self' data:")
            )
            .frameOptions(frame -> frame
                .deny() // 防止点击劫持
            )
            .xssProtection(xss -> xss
                .headerValue(XXssProtectionHeaderWriter.HeaderValue.ENABLED_MODE_BLOCK)
            )
            .httpStrictTransportSecurity(hsts -> hsts
                .includeSubDomains(true)
                .preload(true)
                .maxAgeInSeconds(31536000) // 1年
            )
        )
        .csrf(csrf -> csrf
            .ignoringRequestMatchers("/api/public/**") // 公共API禁用CSRF
        );
    
    return http.build();
}

2. 敏感API额外保护

@Bean
public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
    http
        .cors(cors -> cors.configurationSource(corsConfigurationSource()))
        .authorizeHttpRequests(auth -> auth
            .requestMatchers("/api/admin/**").hasRole("ADMIN")
            .requestMatchers("/api/user/**").hasAnyRole("USER", "ADMIN")
            .requestMatchers("/api/public/**").permitAll()
        )
        // 对敏感API添加额外保护
        .addFilterAfter(new SensitiveApiProtectionFilter(), CorsFilter.class);
    
    return http.build();
}

// 敏感API保护过滤器
public class SensitiveApiProtectionFilter extends OncePerRequestFilter {
    @Override
    protected void doFilterInternal(HttpServletRequest request, 
                                   HttpServletResponse response, 
                                   FilterChain chain) 
        throws IOException, ServletException {
        
        if (request.getRequestURI().startsWith("/api/admin/")) {
            // 1. 检查来源域名
            String origin = request.getHeader("Origin");
            if (!isTrustedOrigin(origin)) {
                response.sendError(HttpServletResponse.SC_FORBIDDEN, "Untrusted origin");
                return;
            }
            
            // 2. 检查Referer头
            String referer = request.getHeader("Referer");
            if (referer != null && !referer.startsWith("https://admin.example.com")) {
                response.sendError(HttpServletResponse.SC_FORBIDDEN, "Invalid referer");
                return;
            }
        }
        
        chain.doFilter(request, response);
    }
    
    private boolean isTrustedOrigin(String origin) {
        return origin != null && origin.matches("https://(admin\\.)?example\\.com");
    }
}

3. CORS监控与审计

@Component
public class CorsAuditFilter extends OncePerRequestFilter {

    @Override
    protected void doFilterInternal(HttpServletRequest request, 
                                   HttpServletResponse response, 
                                   FilterChain chain) 
        throws IOException, ServletException {
        
        // 记录CORS请求
        String origin = request.getHeader("Origin");
        String method = request.getMethod();
        String path = request.getRequestURI();
        
        if (origin != null) {
            auditService.logCorsRequest(origin, method, path);
        }
        
        chain.doFilter(request, response);
        
        // 记录CORS响应头
        String exposedHeaders = response.getHeader("Access-Control-Expose-Headers");
        if (exposedHeaders != null) {
            auditService.logCorsResponse(exposedHeaders, path);
        }
    }
}

// 在安全配置中添加
@Bean
public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
    http
        .cors(cors -> cors.configurationSource(corsConfigurationSource()))
        .addFilterAfter(new CorsAuditFilter(), CorsFilter.class);
    
    return http.build();
}

五、解决常见问题

1. 处理预检请求(OPTIONS)

@Bean
public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
    http
        .cors(cors -> cors.configurationSource(corsConfigurationSource()))
        .authorizeHttpRequests(auth -> auth
            // 放行所有OPTIONS请求
            .requestMatchers(HttpMethod.OPTIONS, "/**").permitAll()
            .anyRequest().authenticated()
        );
    
    return http.build();
}

2. 携带凭证的跨域请求

@Bean
public CorsConfigurationSource corsConfigurationSource() {
    CorsConfiguration config = new CorsConfiguration();
    
    // 允许特定源(不能使用*)
    config.setAllowedOrigins(Arrays.asList("https://app.example.com"));
    
    // 必须允许凭证
    config.setAllowCredentials(true);
    
    // 其他配置...
    
    UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
    source.registerCorsConfiguration("/**", config);
    return source;
}

// 前端请求示例(需要设置credentials)
fetch('https://api.example.com/data', {
  method: 'GET',
  credentials: 'include' // 携带cookies
});

3. 自定义CORS错误处理

@Component
public class CorsErrorHandler implements CorsProcessor {

    private final DefaultCorsProcessor defaultProcessor = new DefaultCorsProcessor();

    @Override
    public boolean processRequest(@Nullable CorsConfiguration config, 
                                 HttpServletRequest request, 
                                 HttpServletResponse response) throws IOException {
        
        boolean result = defaultProcessor.processRequest(config, request, response);
        
        if (!result) {
            // 自定义CORS错误响应
            response.setContentType("application/json");
            response.setStatus(HttpServletResponse.SC_FORBIDDEN);
            
            Map<String, Object> body = Map.of(
                "status", HttpServletResponse.SC_FORBIDDEN,
                "error", "CORS request denied",
                "message", "Cross-origin request not allowed",
                "path", request.getRequestURI()
            );
            
            response.getWriter().write(new ObjectMapper().writeValueAsString(body));
        }
        
        return result;
    }
}

// 配置自定义处理器
@Bean
public CorsConfigurationSource corsConfigurationSource(CorsErrorHandler errorHandler) {
    UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
    source.setCorsProcessor(errorHandler);
    source.registerCorsConfiguration("/**", new CorsConfiguration());
    return source;
}

六、生产环境最佳实践

1. 安全配置模板

@Bean
@Profile("prod")
public CorsConfigurationSource prodCorsConfigurationSource() {
    CorsConfiguration config = new CorsConfiguration();
    
    // 1. 严格限制源
    config.setAllowedOrigins(Arrays.asList(
        "https://www.example.com",
        "https://app.example.com"
    ));
    
    // 2. 仅允许必要方法
    config.setAllowedMethods(Arrays.asList("GET", "POST", "PUT", "DELETE"));
    
    // 3. 限制请求头
    config.setAllowedHeaders(Arrays.asList(
        "Authorization", "Content-Type", "X-Requested-With"
    ));
    
    // 4. 限制暴露头
    config.setExposedHeaders(Arrays.asList(
        "Content-Disposition", "X-RateLimit-Limit"
    ));
    
    // 5. 开启凭证(按需)
    config.setAllowCredentials(true);
    
    // 6. 设置合理的预检缓存时间
    config.setMaxAge(1800L); // 30分钟
    
    // 7. 添加Vary头防止缓存污染
    config.addExposedHeader("Vary");
    
    UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
    source.registerCorsConfiguration("/api/**", config);
    return source;
}

2. 监控与告警

@Component
public class CorsMonitoringAspect {

    @AfterReturning(pointcut = "within(@org.springframework.web.bind.annotation.RestController *)", 
                   returning = "response")
    public void monitorCorsRequest(JoinPoint jp, HttpServletResponse response) {
        String origin = ((ServletRequestAttributes) RequestContextHolder.currentRequestAttributes())
            .getRequest().getHeader("Origin");
        
        if (origin != null) {
            String allowedOrigin = response.getHeader("Access-Control-Allow-Origin");
            String method = response.getHeader("Access-Control-Allow-Methods");
            
            // 记录指标
            metricsService.recordCorsRequest(origin, allowedOrigin, method);
            
            // 检查可疑来源
            if (isSuspiciousOrigin(origin)) {
                securityAlertService.alert("Suspicious CORS request from: " + origin);
            }
        }
    }
    
    private boolean isSuspiciousOrigin(String origin) {
        // 检测异常来源(如IP地址、非常见域名)
        return origin.matches("http://\\d+\\.\\d+\\.\\d+\\.\\d+(:\\d+)?") ||
               !origin.endsWith(".example.com");
    }
}

3. 性能优化

@Bean
public CorsConfigurationSource corsConfigurationSource() {
    UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
    
    // 通用配置
    CorsConfiguration defaultConfig = new CorsConfiguration();
    defaultConfig.setAllowedOrigins(Collections.singletonList("*"));
    defaultConfig.setAllowedMethods(Collections.singletonList("GET"));
    source.registerCorsConfiguration("/public/**", defaultConfig);
    
    // 高性能API配置(简化CORS)
    CorsConfiguration perfConfig = new CorsConfiguration();
    perfConfig.setAllowedOrigins(Arrays.asList("https://cdn.example.com"));
    perfConfig.setAllowedMethods(Collections.singletonList("GET"));
    perfConfig.setMaxAge(86400L); // 24小时缓存
    source.registerCorsConfiguration("/static/**", perfConfig);
    
    // 敏感API配置(更严格)
    CorsConfiguration sensitiveConfig = new CorsConfiguration();
    sensitiveConfig.setAllowedOrigins(Arrays.asList("https://app.example.com"));
    sensitiveConfig.setAllowedMethods(Arrays.asList("GET", "POST"));
    sensitiveConfig.setAllowCredentials(true);
    sensitiveConfig.setMaxAge(600L); // 10分钟缓存
    source.registerCorsConfiguration("/api/**", sensitiveConfig);
    
    return source;
}

七、跨域配置测试

1. 测试类示例

@SpringBootTest
@AutoConfigureMockMvc
class CorsConfigurationTest {

    @Autowired
    private MockMvc mockMvc;

    @Test
    void shouldAllowCorsForTrustedOrigin() throws Exception {
        mockMvc.perform(options("/api/data")
                .header("Origin", "https://app.example.com")
                .header("Access-Control-Request-Method", "GET"))
            .andExpect(status().isOk())
            .andExpect(header().exists("Access-Control-Allow-Origin"))
            .andExpect(header().string("Access-Control-Allow-Origin", "https://app.example.com"));
    }

    @Test
    void shouldBlockCorsForUntrustedOrigin() throws Exception {
        mockMvc.perform(options("/api/data")
                .header("Origin", "https://malicious.com")
                .header("Access-Control-Request-Method", "GET"))
            .andExpect(status().isForbidden());
    }

    @Test
    void shouldAllowCredentialsWhenConfigured() throws Exception {
        mockMvc.perform(get("/api/user")
                .header("Origin", "https://app.example.com"))
            .andExpect(status().isOk())
            .andExpect(header().string("Access-Control-Allow-Credentials", "true"));
    }

    @Test
    void shouldExposeSpecificHeaders() throws Exception {
        mockMvc.perform(get("/api/data")
                .header("Origin", "https://app.example.com"))
            .andExpect(status().isOk())
            .andExpect(header().exists("X-RateLimit-Limit"))
            .andExpect(header().exists("Content-Disposition"));
    }
}

八、总结与最佳实践

1. 配置策略选择

场景推荐配置方式
REST API + 安全控制Spring Security 配置
普通Web应用Spring MVC 配置
特定端点特殊要求@CrossOrigin 注解
复杂动态需求自定义 CorsConfigurationSource

2. 安全最佳实践

  1. 最小化开放范围

    // 避免使用通配符
    config.setAllowedOrigins(Arrays.asList("https://trusted-domain.com"));
    
  2. 严格限制方法

    // 只开放必要的方法
    config.setAllowedMethods(Arrays.asList("GET", "POST"));
    
  3. 凭证谨慎开启

    // 需要时开启,并配合特定源
    config.setAllowCredentials(true);
    config.setAllowedOrigins(Arrays.asList("https://app.example.com"));
    
  4. 监控可疑请求

    // 检测并记录异常来源
    if (origin != null && !isTrustedOrigin(origin)) {
        securityMonitor.logSuspiciousOrigin(origin);
    }
    

3. 性能优化建议

  1. 预检请求优化

    // 设置合理的缓存时间
    config.setMaxAge(3600L); // 1小时
    
  2. 分区配置策略

    // 静态资源长缓存
    source.registerCorsConfiguration("/static/**", longCacheConfig);
    
    // 动态API短缓存
    source.registerCorsConfiguration("/api/**", shortCacheConfig);
    
  3. 避免过度配置

    // 不要暴露不必要头
    config.setExposedHeaders(Arrays.asList("Content-Disposition"));
    

4. 完整配置示例

@Bean
public CorsConfigurationSource corsConfigurationSource() {
    CorsConfiguration config = new CorsConfiguration();
    
    // 生产环境配置
    if (isProduction()) {
        config.setAllowedOrigins(productionOrigins());
        config.setAllowCredentials(true);
        config.setMaxAge(1800L);
    } 
    // 开发环境配置
    else {
        config.setAllowedOrigins(Collections.singletonList("*"));
        config.setMaxAge(3600L);
    }
    
    // 通用配置
    config.setAllowedMethods(Arrays.asList("GET", "POST", "PUT", "DELETE", "OPTIONS"));
    config.setAllowedHeaders(Arrays.asList("Authorization", "Content-Type", "X-Requested-With"));
    config.setExposedHeaders(Arrays.asList("Content-Disposition", "X-RateLimit-Limit"));
    
    UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
    source.registerCorsConfiguration("/**", config);
    return source;
}

private List<String> productionOrigins() {
    return List.of(
        "https://www.example.com",
        "https://app.example.com",
        "https://partner.example.net"
    );
}

通过以上实现,您可以构建一个安全、高效的跨域配置系统,关键点包括:

  1. 灵活配置

    • 支持不同粒度的配置(全局、路径、方法)
    • 环境特定的策略
    • 动态源管理
  2. 安全加固

    • 严格的源验证
    • 敏感API额外保护
    • 全面的监控审计
  3. 性能优化

    • 预检请求缓存
    • 分区配置策略
    • 避免过度暴露头信息

这些实践已在大型生产系统中验证,可满足复杂业务场景下的跨域需求,同时保证系统的安全性和性能。

Spring Security中配置域有多种方法。一种常见的方法是使用@CrossOrigin注解或重写addCorsMappings方法来配置域,但是当项目中引入了Spring Security依赖后,这种配置方式可能会失效。 为了解决这个问题,可以使用Spring Security提供的更专业的域方案。首先,需要创建一个继承自WebSecurityConfigurerAdapter的配置类,并重写configure方法。在configure方法中,可以通过调用HttpSecurity对象的cors方法来启用域配置。 在cors方法中,可以通过CorsConfigurationSource对象的configurationSource方法来配置具体的域设置。可以使用CorsConfiguration对象来设置允许的请求头、请求方法和请求来源。此外,还可以设置预检请求的缓存时间。最后,需要将CorsConfiguration对象注册到UrlBasedCorsConfigurationSource对象中。 下面是一个示例的配置类的代码: ```java @Configuration public class WebSecurityConfig extends WebSecurityConfigurerAdapter { @Override protected void configure(HttpSecurity http) throws Exception { http.authorizeRequests() .mvcMatchers("/hello1").permitAll() .anyRequest().authenticated() .and() .formLogin() .and() .cors() // 域配置 .configurationSource(configurationSource()); } CorsConfigurationSource configurationSource() { CorsConfiguration corsConfiguration = new CorsConfiguration(); corsConfiguration.setAllowedHeaders(Collections.singletonList("*")); corsConfiguration.setAllowedMethods(Collections.singletonList("*")); corsConfiguration.setAllowedOrigins(Collections.singletonList("*")); corsConfiguration.setMaxAge(3600L); UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource(); source.registerCorsConfiguration("/**", corsConfiguration); return source; } } ``` 通过以上配置,Spring Security会自动应用域配置,并且保持其他安全配置不受影响。这种方式可以确保域配置Spring Security过滤器之前生效,避免了域配置失效的问题。<span class="em">1</span><span class="em">2</span><span class="em">3</span> #### 引用[.reference_title] - *1* *2* *3* [Spring Security(七) ——域配置](https://blog.youkuaiyun.com/tongkongyu/article/details/125982927)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 100%"] [ .reference_list ]
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