身份验证后重定向到受保护页面

Question

默认情况下，身份验证后的Spring Security会将您重定向到您之前尝试访问的受保护页面。

当我实现自己的成功处理器时

@Component
class MyS: AuthenticationSuccessHandler {
    override fun onAuthenticationSuccess(request: HttpServletRequest?, response: HttpServletResponse?, authentication: Authentication?) {

        response?.sendRedirect(request?.getHeader(HttpHeaders.REFERER))

    }
}

class SecurityConfigTH(@Autowired private val myHandler: MyS) : WebSecurityConfigurerAdapter() { 
...
    .formLogin()
        .loginPage("/en/login")
        .successHandler(myHandler)
        .permitAll()
 }

我不能达到同样的效果。我试图重定向到referer，但在本例中，referer是/en/login页面。

基本上：

1. 用户尝试访问受保护的url/protected
2. 将用户重定向到/login页面
3. 验证后，用户应再次重定向到/protected

如何使用custom successHandler实现这一点？

Answer 1

多亏了Mhod的回答，这才成功了。

@Component
class MyS: AuthenticationSuccessHandler {
    override fun onAuthenticationSuccess(request: HttpServletRequest?, response: HttpServletResponse?, authentication: Authentication?) {

        val defaultSavedRequest = request?.session?.getAttribute("SPRING_SECURITY_SAVED_REQUEST") as DefaultSavedRequest
        response?.sendRedirect(defaultSavedRequest.requestURI)

    }
}

Answer 2

在我的项目中，我使用了DefaultSavedRequest，完成了我的需求DefaultSavedRequest类由AbstractAuthenticationProcessingFilter和SavedRequestAwareWrapper使用，以在成功验证后重现请求。ExceptionTranslationFilter在发生身份验证异常时存储此类的实例。

https://docs.spring.io/spring-security/site/docs/4.1.2.RELEASE/apidocs/org/springframework/security/web/savedrequest/DefaultSavedRequest.html

@Override
public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) 
        throws IOException, ServletException {
    DefaultSavedRequest defaultSavedRequest = (DefaultSavedRequest) session.getAttribute("SPRING_SECURITY_SAVED_REQUEST");
    if(defaultSavedRequest != null){
       String targetURL = defaultSavedRequest.getRedirectUrl();
       redirectStrategy.sendRedirect(request, response, targetURL);
       return;
    }
}