spring - spring-security 收到空凭据(用户名和密码)时如何创建自定义响应？

Question

我正在使用 postman 将用户名和密码没有值(value)发送到我的服务器；这就像 username=null 和 password=null。

为了控制我的服务器的安全性，我使用 spring security 3.2。当它收到这些凭据时，spring-security 会响应此错误。

Estado HTTP 500 - Fields must not be empty

java.lang.IllegalArgumentException: Cannot pass null or empty values to constructor
    org.springframework.security.core.userdetails.User.<init>(User.java:99)
    org.springframework.security.core.userdetails.User.<init>(User.java:69)
    com.equifax.product.fraud.applicationprocessing.web.rest.interceptors.security.SecurityAuthenticationProvider.retrieveUser(SecurityAuthenticationProvider.java:59)
    org.springframework.security.authentication.dao.AbstractUserDetailsAuthenticationProvider.authenticate(AbstractUserDetailsAuthenticationProvider.java:132)
    org.springframework.security.authentication.ProviderManager.authenticate(ProviderManager.java:156)
    org.springframework.security.authentication.ProviderManager.authenticate(ProviderManager.java:177)
    org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:168)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:50)
    org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
    org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
    org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
    org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
    org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344)
        org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261)

我想输出带有错误消息的自定义 JSON，我该怎么做？

这是我的 security.xml:

    <security:http create-session="never" use-expressions="true"
    auto-config="false">

    <security:intercept-url pattern="/application/**"
        access="isFullyAuthenticated()" />
    <security:anonymous />
    <security:http-basic entry-point-ref="securityAccessDeniedEntryPoint" />
    <security:access-denied-handler ref="securityAccessDeniedHandler" />
</security:http>

<security:authentication-manager alias="authenticationManager"
    erase-credentials="false">
    <security:authentication-provider
        ref="genericSecurityAuthenticationProvider" />
</security:authentication-manager>

我正在使用 Spring 3.2

Answer 1

您正在传递基本身份验证字符串“:”(在 base64 解码之后)，所以正如您所说，这会导致空密码和用户名。 BasicAuthenticationFilter将这些传递给身份验证提供程序，即 您的自定义代码 ( SecurityAuthenticationProvider )，因此无法准确说出它的作用。在某处，您正在创建 User具有这些值的实例，这会引发您看到的异常。相反，您应该检查 AuthenticationProvider 中的空值。并抛出 Authenticationexception .

您还需要覆盖 onUnsuccessfulAuthentication BasicAuthenticationFilter 中的函数编写您想要的错误响应。您必须将其配置为 custom filter ，而不是使用 <security:http-basic />元素。