这是我的情景:
所以,我需要开发一个自定义过滤器 - 我猜 - 它能够从请求中检索用户信息,从数据库检索,通过自定义 DetailsUserService ,进一步有关用户的信息(电子邮件等),然后根据从请求中检索到的角色对该用户进行身份验证。
我正在查看Pre-Authentication过滤器,但我不确定它是否是正确的选择。似乎这些对象在委托人已经在会话中时被使用,由一些先前的身份验证机制提出(是不是?)。
我认为,一旦确定了正确的过滤器,我应该在以下内容中执行:
GrantedAuthority[] ga= new GrantedAuthority[1];
ga[0] = new GrantedAuthorityImpl(myUser.getRole());
SecurityContext sc = SecurityContextHolder.getContext();
Authentication a = new UsernamePasswordAuthenticationToken(userName, userPwd, ga);
a = authenticationManager.authenticate(a);
sc.setAuthentication(a);
解决问题是否正确?你有建议帮我找到遗失的东西吗?
谢谢大家,
卢卡
的此外: 的
嗨Xearxess!很抱歉再次打扰你,但似乎根据SpringSecurity 2.0.4翻译您的代码比我想象的更难:S问题是XML ...我尝试了不同的配置,但我总是遇到命名空间问题,缺少属性等等......
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:security="http://www.springframework.org/schema/security"
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-2.0.xsd
http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-2.0.4.xsd">
<security:http>
<security:intercept-url pattern="/**" access="isAuthenticated()" />
<security:logout logout-url="/logout" logout-success-url="http://milan-ias-vs.usersad.everis.int/DMTest/" invalidate-session="true" />
<security:custom-filter position="PRE_AUTH_FILTER" ref="preAuthenticatedProcessingFilter" />
</security:http>
<bean id="preAuthenticatedProcessingFilter" class="it.novartis.ram.authentication.PreAuthenticatedProcessingFilter">
<custom-filter position="PRE_AUTH_FILTER"/>
<property name="authenticationManager" ref="authenticationManager" />
</bean>
<bean id="preauthAuthProvider" class="org.springframework.security.web.authentication.preauth.PreAuthenticatedAuthenticationProvider">
<property name="preAuthenticatedUserDetailsService">
<bean class="it.novartis.ram.authentication.PreAuthenticatedUserDetailsService" />
</property>
</bean>
<security:authentication-manager alias="authenticationManager">
<security:authentication-provider ref="preauthAuthProvider" />
</security:authentication-manager>
</beans>
引用CUSTOM-FILTER元素的2行是两次不同的尝试,它们都被标记为错误。如何将过滤器的位置指定为属性?
auth manager定义的身份验证提供程序引用也标记为错误。我认为我也需要将它指定为属性,对吗?
希望你能给我最后的推动;) 再次感谢你,
卢卡
答案 0 :(得分:19)
为了完整起见,在Spring Security 4中,事情略有改变。例如,强烈建议使用Java配置。通过这种方式,它可以更容易地与Spring Boot集成。
它遵循Java配置,等同于上面答案中给出的XML配置。
@Configuration
@EnableWebSecurity
public class SecurityConfiguration extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
http.addFilterBefore(customAuthFilter(), AbstractPreAuthenticatedProcessingFilter.class)
.authenticationProvider(preauthAuthProvider())
.authorizeRequests()
.anyRequest().authenticated();
}
@Autowired
public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
auth.authenticationProvider(preauthAuthProvider());
}
@Bean
public PreAuthenticatedAuthenticationProvider preauthAuthProvider() {
PreAuthenticatedAuthenticationProvider preauthAuthProvider =
new PreAuthenticatedAuthenticationProvider();
preauthAuthProvider.setPreAuthenticatedUserDetailsService(
userDetailsServiceWrapper());
return preauthAuthProvider;
}
@Bean
public OnlyRolesPreAuthenticatedUserDetailsService userDetailsServiceWrapper() {
OnlyRolesPreAuthenticatedUserDetailsService service =
new MyPreAuthenticatedUserDetailsService();
return service;
}
@Bean
public MyPreAuthenticatedProcessingFilter customAuthFilter() throws Exception {
MyPreAuthenticatedProcessingFilter filter = new MyPreAuthenticatedProcessingFilter();
filter.setAuthenticationManager(authenticationManager());
return filter;
}
}
我认为上面的代码是值得的,因为互联网上的例子非常基础,Spring文档缺乏这些细节。
答案 1 :(得分:13)
是的,预身份验证方案正是您所需要的。
似乎这些对象预计会在校长时使用 已经在会议中,由一些以前的身份验证机制 (是不是?)。
实际上,您可以根据需要使用预身份验证从请求创建PreAuthenticatedAuthenticationToken
。只需do few things I described in another question。
首先扩展AbstractPreAuthenticatedProcessingFilter
以从请求中获取用户名和角色:
public class MyPreAuthenticatedProcessingFilter
extends AbstractPreAuthenticatedProcessingFilter {
public MyPreAuthenticatedProcessingFilter(
AuthenticationManager authenticationManager) {
setAuthenticationDetailsSource(new MyAuthenticationDetailsSource());
}
@Override
protected Object getPreAuthenticatedPrincipal(HttpServletRequest request) {
return "Anonymous";
}
@Override
protected Object getPreAuthenticatedCredentials(HttpServletRequest request) {
return "N/A";
}
public static class MyAuthenticationDetailsSource implements
AuthenticationDetailsSource<HttpServletRequest, MySessionUserDetails> {
// roles probably should be encrypted somehow
static final String ROLES_PARAMETER = "pre_auth_roles";
@Override
public MySessionUserDetails buildDetails(HttpServletRequest req) {
// create container for pre-auth data
return new MySessionUserDetails(req.getParameter(ROLES_PARAMETER));
}
}
}
MySessionUserDetails
类会将spring分配给SimpleGrantedAuthority
列表或任何其他GrantedAuthority
实现。此外,建议使用列表,并且优于GrantedAuthority[]
。
其次,实施AuthenticationUserDetailsService
:
public class MyPreAuthenticatedUserDetailsService implements
AuthenticationUserDetailsService<PreAuthenticatedAuthenticationToken> {
@Override
public UserDetails loadUserDetails(PreAuthenticatedAuthenticationToken token)
throws UsernameNotFoundException {
MySessionUserDetails sessionUserDetails =
(MySessionUserDetails) token.getDetails();
List<GrantedAuthority> authorities = sessionUserDetails.getAuthorities();
return new User(token.getName(), "N/A", true, true, true, true, authorities);
}
}
然后在你的XML连接块中:
<security:http use-expressions="true">
<security:intercept-url pattern="/**" access="isAuthenticated()" />
<security:custom-filter position="PRE_AUTH_FILTER"
ref="myPreAuthenticationFilter" />
</security:http>
<bean id="myPreAuthenticationFilter"
class="com.example.MyPreAuthenticatedProcessingFilter">
<property name="authenticationManager" ref="authenticationManager" />
</bean>
<bean id="preauthAuthProvider" class="org.springframework.security.web.authentication.preauth.PreAuthenticatedAuthenticationProvider">
<property name="preAuthenticatedUserDetailsService">
<bean class="com.example.MyPreAuthenticatedUserDetailsService" />
</property>
</bean>
<security:authentication-manager alias="authenticationManager">
<security:authentication-provider ref="preauthAuthProvider" />
</security:authentication-manager>
瞧!您应该在您的应用程序中使用经过身份验证的User
委托人。
我在这里编写的代码需要Spring Security 3.1,如果您即将使用它,我强烈推荐它(它确实需要Spring 3.0.7+)。此外,Spring Security reference manual是您的朋友!