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当要发送的请求是多部分请求时，struts2 Spring CSRF令牌不工作

2 周，5 日 Questions & Answers

我用

  • SpringFramework 4.0.0发行版（GA）
  • Spring Security 3.2.0版本（GA）
  • Struts 2.3.16

其中，我使用内置的安全令牌来防范CSRF攻击

Struts表单如下所示

<s:form namespace="/admin_side"
        action="Category"
        enctype="multipart/form-data"
        method="POST"
        validate="true"
        id="dataForm"
        name="dataForm">

    <s:hidden name="%{#attr._csrf.parameterName}"
              value="%{#attr._csrf.token}"/>
</s:form>

生成的HTML代码如下所示

<form id="dataForm"
      name="dataForm"
      action="/TestStruts/admin_side/Category.action"
      method="POST"
      enctype="multipart/form-data">

    <input type="hidden"
           name="_csrf"
           value="3748c228-85c6-4c3f-accf-b17d1efba1c5" 
           id="dataForm__csrf">
</form>

这可以正常工作，除非请求是多部分的在这种情况下，请求以状态代码403结束

HTTP Status 403 - Invalid CSRF Token 'null' was found on the request parameter '_csrf' or header 'X-CSRF-TOKEN'.

type Status report

message Invalid CSRF Token 'null' was found on the request parameter '_csrf' or header 'X-CSRF-TOKEN'.

description Access to the specified resource has been forbidden.

spring-security.xml文件如下所示

<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/security"
             xmlns:beans="http://www.springframework.org/schema/beans"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
           http://www.springframework.org/schema/security
           http://www.springframework.org/schema/security/spring-security-3.2.xsd">

    <http pattern="/Login.jsp*" security="none"></http>

    <http auto-config='true' use-expressions="true" disable-url-rewriting="true" authentication-manager-ref="authenticationManager">
        <session-management session-fixation-protection="newSession">
            <concurrency-control max-sessions="1" error-if-maximum-exceeded="true" />
        </session-management>

        <csrf/>

        <headers>
            <xss-protection />
            <frame-options />
            <!--<cache-control />-->
            <!--<hsts />-->
            <content-type-options /> <!--content sniffing-->
        </headers>

        <intercept-url pattern="/admin_side/**" access="hasRole('ROLE_ADMIN')" requires-channel="any"/>
        <form-login login-page="/admin_login/Login.action" authentication-success-handler-ref="loginSuccessHandler" authentication-failure-handler-ref="authenticationFailureHandler"/>
        <logout logout-success-url="/admin_login/Login.action" invalidate-session="true" delete-cookies="JSESSIONID"/>
    </http>

    <beans:bean id="encoder" class="org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder"/>

    <beans:bean id="daoAuthenticationProvider" class="org.springframework.security.authentication.dao.DaoAuthenticationProvider">
        <beans:property name="userDetailsService" ref="userDetailsService"/>
        <beans:property name="passwordEncoder" ref="encoder" />
    </beans:bean>

    <beans:bean id="authenticationManager" class="org.springframework.security.authentication.ProviderManager">
        <beans:property name="providers">
            <beans:list>
                <beans:ref bean="daoAuthenticationProvider" />
            </beans:list>
        </beans:property>
    </beans:bean>

    <authentication-manager>
        <authentication-provider user-service-ref="userDetailsService">
        </authentication-provider>
    </authentication-manager>

    <beans:bean id="loginSuccessHandler" class="loginsuccesshandler.LoginSuccessHandler"/>
    <beans:bean id="authenticationFailureHandler" class="loginsuccesshandler.AuthenticationFailureHandler" />

    <global-method-security secured-annotations="enabled" proxy-target-class="false" authentication-manager-ref="authenticationManager">
        <protect-pointcut expression="execution(* admin.dao.*.*(..))" access="ROLE_ADMIN"/>
    </global-method-security>
</beans:beans>

那么，当请求是多部分的时候，在哪里寻找这个令牌呢？（这根本不应该与支柱相关。）

如果需要，可以在我前面的问题中找到UserDetailsService的实现

Placing ^{} before Spring Security也没有帮助

web.xml文件如下所示

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0"
         xmlns="http://java.sun.com/xml/ns/javaee" 
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
         http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>
            /WEB-INF/applicationContext.xml
            /WEB-INF/spring-security.xml
        </param-value>
    </context-param>

    <filter>
        <filter-name>MultipartFilter</filter-name>
        <filter-class>org.springframework.web.multipart.support.MultipartFilter</filter-class>
    </filter>

    <filter>
        <filter-name>springSecurityFilterChain</filter-name>
        <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
    </filter>

    <filter-mapping>
        <filter-name>MultipartFilter</filter-name>
        <servlet-name>/*</servlet-name>
    </filter-mapping>

    <filter-mapping>
        <filter-name>springSecurityFilterChain</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <filter>
        <filter-name>AdminLoginNocacheFilter</filter-name>
        <filter-class>filter.AdminLoginNocacheFilter</filter-class>
    </filter>

    <filter-mapping>
        <filter-name>AdminLoginNocacheFilter</filter-name>
        <url-pattern>/admin_login/*</url-pattern>
    </filter-mapping>

    <filter>
        <filter-name>NoCacheFilter</filter-name>
        <filter-class>filter.NoCacheFilter</filter-class>
    </filter>

    <filter-mapping>
        <filter-name>NoCacheFilter</filter-name>
        <url-pattern>/admin_side/*</url-pattern>
    </filter-mapping>

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <listener>
        <description>Description</description>
        <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
    </listener>

    <listener>
        <listener-class>org.springframework.security.web.session.HttpSessionEventPublisher</listener-class>
    </listener>

    <filter>
        <filter-name>struts2</filter-name>
        <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
        <init-param>
            <param-name>struts.devMode</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>

    <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
</web-app>

它只在令牌作为查询字符串参数追加时起作用，如下所示，但不鼓励这样做

<s:form namespace="/admin_side"
        action="Category?%{#attr._csrf.parameterName}=%{#attr._csrf.token}"
        enctype="multipart/form-data"
        method="POST"
        validate="true"
        id="dataForm"
        name="dataForm">
    ...
<s:form>

共 (5) 个答案

  1. # 1 楼答案

    你可以禁用csrf-httpSecurity。csrf（）。禁用（）

     @Configuration
    public class SecurityConfiguration extends WebSecurityConfigurerAdapter {

    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception {
        ...
        httpSecurity.csrf().disable();
        ...
    }
}
  2. # 2 楼答案

    在Spring Boot+Security+CSRF+Multipart的情况下，多部分文件既不绑定到ModelAttribure，也不绑定到RequestParam（MultipartFile）

    下面的代码对我来说很好

    1。MVC配置。java

    @Configuration
@EnableWebMvc
@ComponentScan
public class MvcConfiguration extends WebMvcConfigurerAdapter { 

.......
......

/*
     * Case : Spring Boot + Security + CSRF + Mulitpart 
     * In this case, since it is a multipart request in which the CSRF token is unavailable to Spring security unless MultipartFilter along with MultipartResolver 
     * is properly configured so that the multipart request can be processed by Spring.
     * 
     * And 
     * 
     * The multipart/form-data filter (MultipartFilter) needs to be registered before the SecurityConfig that enables the CSRF.
     * So that's why 
     * 1. reg.setOrder(1); //below
     * 2. security.filter-order=2 // in application.properties
     */

    @Bean
    public FilterRegistrationBean registerMultipartFilter() {
        FilterRegistrationBean reg = new FilterRegistrationBean(new MultipartFilter());
        reg.setOrder(1);
        return reg;
    }

    @Bean(name = "filterMultipartResolver")
    public CommonsMultipartResolver filterMultipartResolver() {
        CommonsMultipartResolver filterMultipartResolver = new CommonsMultipartResolver();
        filterMultipartResolver.setDefaultEncoding("utf-8");
        // resolver.setMaxUploadSize(512000);
        return filterMultipartResolver;
    }
.....
.....
}

    2。应用属性

    security.filter-order=2
  3. # 3 楼答案

    我通过以下方式解决了这个问题：

    • 使用普通javascript发送多部分文件，如Mozilla's guide
    • 将_csrf标记添加到HTML头中的meta标记中，就像Spring的sending the CSRF token with Ajax指南一样

    • 不使用jquery，而是直接将其添加到XHR对象中

      var csrfToken = $("meta[name='_csrf']").attr("content");
var csrfHeader = $("meta[name='_csrf_header']").attr("content");
XHR.setRequestHeader(csrfHeader, csrfToken);
XHR.setRequestHeader('Content-Type','multipart/form-data; boundary=' + boundary);

XHR.send(data);
  4. # 4 楼答案

    在这种情况下，因为它是一个多部分请求，其中CSRF令牌对Spring security不可用，除非MultipartFilter和MultipartResolver正确配置，以便Spring可以处理多部分请求

    applicationContext.xml文件中的MulipartResolver必须按如下方式注册

    <bean id="filterMultipartResolver" 
      class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> 

    <property name="maxUploadSize" value="-1" />
</bean>

    maxUploadSize的属性值-1对上传的文件大小没有限制。该值可能因要求而异。如果有多个文件，文件大小是所有上传文件的大小

    还有

    <servlet-name>/*</servlet-name>

    of <filter-mapping>of MultipartFilter需要更改为

    <url-pattern>/*</url-pattern>

    这是documentation中的bug

    这将很好地工作，以防，这只是Spring MVC

    但是，如果它是Spring和Struts的集成（2），那么在相关的Struts action类中会产生另一个问题。上传文件的信息将在相关的Struts操作类中null

    要解决这个特定问题，请参见this自定义multipart request的答案

  5. # 5 楼答案

    如果您使用的是@annotations，jsp视图如下所示：

        <form:form id="profileForm" action="profile?id=${param.id}" method="POST" 
          modelAttribute="appUser" enctype="multipart/form-data" >
             ...
            <input type="file" name="file">
             ...
            <input type="hidden" name="${_csrf.parameterName}"
                value="${_csrf.token}" />
    </form:form>

    这可能有助于：

    AppConfig。爪哇：

    @EnableWebMvc
@Configuration
@Import({ SecurityConfig.class })
public class AppConfig {

   @Bean(name = "filterMultipartResolver")
   public CommonsMultipartResolver filterMultipartResolver() {
      CommonsMultipartResolver filterMultipartResolver = new CommonsMultipartResolver();
      filterMultipartResolver.setDefaultEncoding("utf-8");
      // resolver.setMaxUploadSize(512000);
      return filterMultipartResolver;
}
...

    证券配置。java扩展了WebSecurity配置适配器，是SpringSecurity的配置

    需要在启用CSRF的SecurityConfig之前注册多部分/表单数据筛选器（MultipartFilter）。你可以这样做：

    安全初始化器。爪哇：

    public class SecurityInitializer extends
AbstractSecurityWebApplicationInitializer {

@Override
protected void beforeSpringSecurityFilterChain(ServletContext servletContext) {
   super.beforeSpringSecurityFilterChain(servletContext);

   // CSRF for multipart form data filter:
   FilterRegistration.Dynamic springMultipartFilter;
   springMultipartFilter = servletContext.addFilter(
    "springMultipartFilter", new MultipartFilter());
   springMultipartFilter.addMappingForUrlPatterns(null, false, "/*");

}
}