我正在使用Spring Security保护Struts2 Web应用程序。由于项目的限制,我使用的是Spring Security 2.06。
我的团队构建了一个自定义用户管理API,该API在输入用户名和密码参数后对用户进行身份验证,并返回一个自定义用户对象,其中包含角色列表以及其他属性,如电子邮件,名称等。
据我了解,典型的Spring
Security用例使用默认的UserDetailsService来检索UserDetails对象。该对象将(除其他事项外)包含一个密码字段,框架将使用该密码字段对用户进行身份验证。
就我而言,我想让我们的自定义API进行身份验证,然后返回一个包含角色和其他属性(电子邮件等)的自定义UserDetails对象。
经过研究,我发现可以通过AuthenticationProvider的自定义实现来做到这一点。我还具有UserDetailsService和UserDetails的自定义实现。
我的问题是我不太了解CustomAuthenticationProvider应该返回什么。我在这里使用我的自定义UserDetailsService对象吗?甚至需要吗?抱歉,我真的很困惑。
CustomAuthenticationProvider:
public class CustomAuthenticationProvider implements AuthenticationProvider {
private Logger logger = Logger.getLogger(CustomAuthenticationProvider.class);
private UserDetailsService userDetailsService; //what am i supposed to do with this?
@Override
public Authentication authenticate(Authentication authentication) throws AuthenticationException {
UsernamePasswordAuthenticationToken auth = (UsernamePasswordAuthenticationToken) authentication;
String username = String.valueOf(auth.getPrincipal());
String password = String.valueOf(auth.getCredentials());
logger.info("username:" + username);
logger.info("password:" + password);
/* what should happen here? */
return null; //what do i return?
}
@Override
public boolean supports(Class aClass) {
return true; //To indicate that this authenticationprovider can handle the auth request. since there's currently only one way of logging in, always return true
}
public UserDetailsService getUserDetailsService() {
return userDetailsService;
}
public void setUserDetailsService(UserDetailsService userDetailsService) {
this.userDetailsService = userDetailsService;
}
}
applicationContext-security.xml:
<beans:bean id="customUserDetailsService" scope="prototype" class="com.test.testconsole.security.CustomUserDetailsService"/>
<beans:bean id="customAuthenticationProvider" class="com.test.testconsole.security.CustomAuthenticationProvider">
<custom-authentication-provider />
<beans:property name="userDetailsService" ref="customUserDetailsService" />
</beans:bean>
总而言之,这就是我所需要的:
//spring security get user name
Authentication auth = SecurityContextHolder.getContext().getAuthentication();
userName = auth.getName(); //get logged in username
logger.info("username: " + userName);
//spring security get user role
GrantedAuthority[] authorities = auth.getAuthorities();
userRole = authorities[0].getAuthority();
logger.info("user role: " + userRole);
我希望这是有道理的。任何帮助或指针将不胜感激!
谢谢!
更新:
我认为我已经取得了一些进展。
我有一个实现Authentication接口的自定义Authentication对象:
public class CustomAuthentication implements Authentication {
String name;
GrantedAuthority[] authorities;
Object credentials;
Object details;
Object principal;
boolean authenticated;
public CustomAuthentication(String name, GrantedAuthority[] authorities, Object credentials, Object details, Object principal, boolean
authenticated){
this.name=name;
this.authorities=authorities;
this.details=details;
this.principal=principal;
this.authenticated=authenticated;
}
@Override
public GrantedAuthority[] getAuthorities() {
return new GrantedAuthority[0]; //To change body of implemented methods use File | Settings | File Templates.
}
@Override
public Object getCredentials() {
return null; //To change body of implemented methods use File | Settings | File Templates.
}
@Override
public Object getDetails() {
return null; //To change body of implemented methods use File | Settings | File Templates.
}
@Override
public Object getPrincipal() {
return null; //To change body of implemented methods use File | Settings | File Templates.
}
@Override
public boolean isAuthenticated() {
return false; //To change body of implemented methods use File | Settings | File Templates.
}
@Override
public void setAuthenticated(boolean isAuthenticated) throws IllegalArgumentException {
//To change body of implemented methods use File | Settings | File Templates.
}
@Override
public String getName() {
return null;
}
}
并更新了我的CustomerAuthenticationProvider类:
@Override
public Authentication authenticate(Authentication authentication) throws AuthenticationException {
UsernamePasswordAuthenticationToken auth = (UsernamePasswordAuthenticationToken) authentication;
String username = String.valueOf(auth.getPrincipal());
String password = String.valueOf(auth.getCredentials());
logger.info("username:" + username);
logger.info("password:" + password);
//no actual validation done at this time
GrantedAuthority[] authorities = new GrantedAuthorityImpl[1];
authorities[0] = new GrantedAuthorityImpl("ROLE_USER");
CustomAuthentication customAuthentication = new CustomAuthentication("TestMerchant",authorities,"details",username,password,true);
return customAuthentication;
//return new UsernamePasswordAuthenticationToken(username,password,authorities);
}
如果我返回UsernamePasswordAuthenticationToken对象,它会起作用,但是如果我尝试返回CustomAuthentication,则会出现以下错误:
java.lang.ClassCastException: com.test.testconsole.security.CustomAuthentication cannot be cast to org.springframework.security.providers.UsernamePasswordAuthenticationToken
at com.test.testconsole.security.CustomAuthenticationProvider.authenticate(CustomAuthenticationProvider.java:27)
at org.springframework.security.providers.ProviderManager.doAuthentication(ProviderManager.java:188)
at org.springframework.security.AbstractAuthenticationManager.authenticate(AbstractAuthenticationManager.java:46)
at org.springframework.security.intercept.AbstractSecurityInterceptor.authenticateIfRequired(AbstractSecurityInterceptor.java:319)
at org.springframework.security.intercept.AbstractSecurityInterceptor.beforeInvocation(AbstractSecurityInterceptor.java:258)
at org.springframework.security.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:106)
at org.springframework.security.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.ui.SessionFixationProtectionFilter.doFilterHttp(SessionFixationProtectionFilter.java:67)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.ui.ExceptionTranslationFilter.doFilterHttp(ExceptionTranslationFilter.java:101)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.providers.anonymous.AnonymousProcessingFilter.doFilterHttp(AnonymousProcessingFilter.java:105)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.ui.rememberme.RememberMeProcessingFilter.doFilterHttp(RememberMeProcessingFilter.java:116)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.wrapper.SecurityContextHolderAwareRequestFilter.doFilterHttp(SecurityContextHolderAwareRequestFilter.java:91)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.ui.basicauth.BasicProcessingFilter.doFilterHttp(BasicProcessingFilter.java:174)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.ui.AbstractProcessingFilter.doFilterHttp(AbstractProcessingFilter.java:278)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.ui.logout.LogoutFilter.doFilterHttp(LogoutFilter.java:89)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.context.HttpSessionContextIntegrationFilter.doFilterHttp(HttpSessionContextIntegrationFilter.java:235)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
at org.springframework.security.util.FilterChainProxy.doFilter(FilterChainProxy.java:175)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:236)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:536)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:915)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:539)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:405)
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
就像期望的不仅是任何Authentication对象,而且还有它的特定实现-
UsernamePasswordAuthenticationToken。这使我认为我可能会缺少另一个自定义组件..也许是过滤器?
如果要实现自己的AuthenticationProvider
,则不需要实现UserDetailsService
。UserDetailsService
只是提供了用于加载用户信息的标准DAO,并且在框架中实现了一些其他类来使用它。
通常,要使用用户名和密码进行身份验证,您可以实例化a
DaoAuthenticationProvider
并使用注入UserDetailsService
。那可能仍然是您最好的方法。如果您实施自己的提供程序,则您有责任确保用户提供了正确的密码,依此类推。但是,在某些情况下,这是一种更简单的方法。
回答您的“这里应该发生什么?” 在您的代码中注释,它会像
@Override
public Authentication authenticate(Authentication authentication) throws AuthenticationException {
UsernamePasswordAuthenticationToken auth = (UsernamePasswordAuthenticationToken) authentication;
String username = String.valueOf(auth.getPrincipal());
String password = String.valueOf(auth.getCredentials());
logger.info("username:" + username);
logger.info("password:" + password); // Don't log passwords in real app
// 1. Use the username to load the data for the user, including authorities and password.
YourUser user = ....
// 2. Check the passwords match (should use a hashed password here).
if (!user.getPassword().equals(password)) {
throw new BadCredentialsException("Bad Credentials");
}
// 3. Preferably clear the password in the user object before storing in authentication object
user.clearPassword();
// 4. Return an authenticated token, containing user data and authorities
return new UsernamePasswordAuthenticationToken(user, null, user.getAuthorities()) ;
}
然后,可以使用
Authentication.getPrincipal()
方法,然后将其强制转换为自定义用户实现即可访问其他属性(电子邮件等)。
如何加载用户数据取决于您。Spring Security关心的只是AuthenticationProvider
接口。
您还应该存储散列密码,并使用相同的算法而不是简单的相等性检查来验证提供的密码。
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