Spring Security中始终拒绝访问 - DenyAllPermissionEvaluator

时间:2017-01-26 11:09:54

标签: java spring spring-boot spring-security acl

我在Spring Boot应用程序中配置了ACL。 ACL配置如下:

@Configuration
@ComponentScan(basePackages = "com.company")
@EnableGlobalMethodSecurity(prePostEnabled = true, securedEnabled = true)
public class ACLConfigration extends GlobalMethodSecurityConfiguration {

    @Autowired
    DataSource dataSource;

    @Bean
    public EhCacheBasedAclCache aclCache() {
        return new EhCacheBasedAclCache(aclEhCacheFactoryBean().getObject(), permissionGrantingStrategy(), aclAuthorizationStrategy());
    }

    @Bean
    public EhCacheFactoryBean aclEhCacheFactoryBean() {
        EhCacheFactoryBean ehCacheFactoryBean = new EhCacheFactoryBean();
        ehCacheFactoryBean.setCacheManager(aclCacheManager().getObject());
        ehCacheFactoryBean.setCacheName("aclCache");
        return ehCacheFactoryBean;
    }

    @Bean
    public EhCacheManagerFactoryBean aclCacheManager() {
        return new EhCacheManagerFactoryBean();
    }

    @Bean
    public DefaultPermissionGrantingStrategy permissionGrantingStrategy() {
        ConsoleAuditLogger consoleAuditLogger = new ConsoleAuditLogger();
        return new DefaultPermissionGrantingStrategy(consoleAuditLogger);
    }

    @Bean
    public AclAuthorizationStrategy aclAuthorizationStrategy() {
        return new AclAuthorizationStrategyImpl(new SimpleGrantedAuthority("ROLE_ACL_ADMIN"));
    }

    @Bean
    public LookupStrategy lookupStrategy() {
        return new BasicLookupStrategy(dataSource, aclCache(), aclAuthorizationStrategy(), new ConsoleAuditLogger());
    }

    @Bean
    public JdbcMutableAclService aclService() {
        return new JdbcMutableAclService(dataSource, lookupStrategy(), aclCache());
    }

    @Bean
    public DefaultMethodSecurityExpressionHandler defaultMethodSecurityExpressionHandler() {
        return new DefaultMethodSecurityExpressionHandler();
    }

    @Override
    public MethodSecurityExpressionHandler createExpressionHandler() {
        DefaultMethodSecurityExpressionHandler expressionHandler = defaultMethodSecurityExpressionHandler();
        expressionHandler.setPermissionEvaluator(new AclPermissionEvaluator(aclService()));
        expressionHandler.setPermissionCacheOptimizer(new AclPermissionCacheOptimizer(aclService()));
        return expressionHandler;
    }
}

参考文献:

,安全配置如下:

@Configuration
@EnableWebSecurity
public class CustomSecurityConfiguration extends WebSecurityConfigurerAdapter {

    @Bean
    public AuthenticationEntryPoint entryPoint() {
        return new LoginUrlAuthenticationEntryPoint("/authenticate");
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {

        http
                .csrf()
                .disable()
                .authorizeRequests()
                .antMatchers("/authenticate/**").permitAll()
                .anyRequest().fullyAuthenticated()
                .and().requestCache().requestCache(new NullRequestCache())
                .and().addFilterBefore(authenticationFilter(), CustomUsernamePasswordAuthenticationFilter.class);
    }

    @Override
    public void configure(WebSecurity web) throws Exception {
        web.ignoring().antMatchers(HttpMethod.OPTIONS, "/**");
    }

    @Bean
    public CustomUsernamePasswordAuthenticationFilter authenticationFilter()
            throws Exception {
        CustomUsernamePasswordAuthenticationFilter authenticationFilter = new CustomUsernamePasswordAuthenticationFilter();
        authenticationFilter.setUsernameParameter("username");
        authenticationFilter.setPasswordParameter("password");
        authenticationFilter.setFilterProcessesUrl("/authenticate");
        authenticationFilter.setAuthenticationSuccessHandler(new CustomAuthenticationSuccessHandler());
        authenticationFilter.setAuthenticationFailureHandler(new CustomAuthenticationFailureHandler());
        authenticationFilter.setAuthenticationManager(authenticationManagerBean());
        return authenticationFilter;
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }
}

我的CustomAuthenticationProvider课程:

@Component
public class CustomAuthenticationProvider implements AuthenticationProvider {

    @Autowired
    private UsersService usersService;

    @Override
    public Authentication authenticate(Authentication authentication)
            throws AuthenticationException {

        String username = authentication.getName();
        String password = authentication.getCredentials().toString();

        User user = usersService.findOne(username);

        if(user != null && usersService.comparePassword(user, password)){

            return new UsernamePasswordAuthenticationToken(
                    user.getUsername(),
                    user.getPassword(),
                    AuthorityUtils.commaSeparatedStringToAuthorityList(
                            user.getUserRoles().stream().collect(Collectors.joining(","))));
        } else {
            return null;
        }
    }

    @Override
    public boolean supports(Class<?> authentication) {
        return authentication.equals(UsernamePasswordAuthenticationToken.class);
    }
}

这是我的CustomUsernamePasswordAuthenticationToken

public class CustomUsernamePasswordAuthenticationFilter extends UsernamePasswordAuthenticationFilter {

    @Override
    public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response)
            throws AuthenticationException {

        if(!request.getMethod().equals("POST"))
            throw new AuthenticationServiceException(String.format("Authentication method not supported: %s", request.getMethod()));

        try {

            CustomUsernamePasswordAuthenticationForm form = new ObjectMapper().readValue(request.getReader(), CustomUsernamePasswordAuthenticationForm.class);

            String username = form.getUsername();
            String password = form.getPassword();

            if(username == null)
                username = "";

            if(password == null)
                password = "";

            UsernamePasswordAuthenticationToken token = new UsernamePasswordAuthenticationToken(username, password);

            setDetails(request, token);

            return getAuthenticationManager().authenticate(token);

        } catch (IOException exception) {
            throw new CustomAuthenticationException(exception);
        }
    }

    private class CustomAuthenticationException extends RuntimeException {
        private CustomAuthenticationException(Throwable throwable) {
            super(throwable);
        }
    }
}

除了上述内容之外,我还有CustomAuthenticationFailureHandlerCustomAuthenticationSuccessHandlerCustomNoRedirectStrategyCustomUsernamePasswordAuthenticationForm,我为了这个问题的长度而跳过了。

我正在使用可以找到here的MySQL架构。

我正在为我的acl相关表添加条目,如下所示:

INSERT INTO acl_class VALUES (1, com.company.project.domain.users.User)
INSERT INTO acl_sid VALUES (1, 1, "demo")

(我的用户名为demo

INSERT INTO acl_object_identity VALUES (1, 1, 1, NULL, 1, 0)
INSERT INTO acl_entry VALUES (1, 1, 1, 1, 1, 1, 1, 1)

但我得到的只是:

Denying user demo permission 'READ' on object com.company.project.domain.users.User@4a49e9b4

在我的

@PostFilter("hasPermission(filterObject, 'READ')")

我怀疑这里有几个问题:

  1. hasPermission表达式:我已将其替换为'READ'和'1',但无论如何。
  2. 我的数据库条目不正确
  3. 我没有实现自定义权限评估程序。这是必需的,还是expressionHandler.setPermissionEvaluator(new AclPermissionEvaluator(aclService()));足够了?
  4. 更新

    使用@PostFilter的示例方法:

    @RequestMapping(method = RequestMethod.GET)
        @PostFilter("hasPermission(filterObject, 'READ')")
        List<User> find(@Min(0) @RequestParam(value = "limit", required = false, defaultValue = "10") Integer limit,
                        @Min(0) @RequestParam(value = "page", required = false, defaultValue = "0") Integer page,
                        @RequestParam(value = "email", required = false) String email,
                        @RequestParam(value = "firstName", required = false) String firstName,
                        @RequestParam(value = "lastName", required = false) String lastName,
                        @RequestParam(value = "userRole", required = false) String userRole) {
    
            return usersService.find(
                    limit,
                    page,
                    email,
                    firstName,
                    lastName,
                    userRole);
        }
    

    更新#2:

    现在的问题反映了在身份验证/授权/ ACL方面设置的所有内容。

    更新#3:

    我现在非常接近解决这个问题,唯一剩下的就是解决这个问题:

    https://stackoverflow.com/questions/42996579/custom-permissionevaluator-not-called-although-set-as-permissionevaluator-deny

    如果有人可以帮我解决这个问题,我终于可以写一下我已经解决的问题。

3 个答案:

答案 0 :(得分:6)

我升级了我的应用程序以使用Spring Security 4.2.1.RELEASE然后我开始在所有@PreAuthorize带注释的方法中遇到意外访问被拒绝,这在升级之前工作正常。 我调试了spring安全代码,我意识到问题是所有要检查的角色都带有一个默认字符串“ROLE_”,无论我将默认前缀设置为空,如下面的代码所示。

auth.ldapAuthentication()
        .groupSearchBase(ldapProperties.getProperty("groupSearchBase"))
        .groupRoleAttribute(ldapProperties.getProperty("groupRoleAttribute"))
        .groupSearchFilter(ldapProperties.getProperty("groupSearchFilter"))

        //this call used to be plenty to override the default prefix
        .rolePrefix("")

        .userSearchBase(ldapProperties.getProperty("userSearchBase"))
        .userSearchFilter(ldapProperties.getProperty("userSearchFilter"))
        .contextSource(this.ldapContextSource);

我的所有控制器方法都使用@PreAuthorize("hasRole('my_ldap_group_name')")进行了注释,但是,框架没有考虑我的空角色前缀设置,因此它使用 ROLE_my_ldap_group_name 来检查实际角色。

在深入研究框架的代码之后,我意识到类org.springframework.security.web.access.expression.DefaultWebSecurityExpressionHandler仍然将默认角色前缀设置为"ROLE_"。我跟进了它的值的来源,我发现它首先检查类org.springframework.security.config.core.GrantedAuthorityDefaults的声明bean,以便在bean org.springframework.security.config.annotation.web.configurers.ExpressionUrlAuthorizationConfigurer的第一次初始化期间查找默认前缀,但是,这个初始化器bean无法找到它声明,它最终使用上述默认前缀。

我认为这不是预期的行为:Spring Security应该从ldapAuthentication考虑相同的rolePrefix,但是,为了解决这个问题,有必要将bean org.springframework.security.config.core.GrantedAuthorityDefaults添加到我的应用程序上下文中(我是使用基于注释的配置),如下所示:

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class CesSecurityConfiguration extends WebSecurityConfigurerAdapter {

    private static final String ROLE_PREFIX = "";
    //... ommited code ...
    @Bean
    public GrantedAuthorityDefaults grantedAuthorityDefaults() {
        return new GrantedAuthorityDefaults(ROLE_PREFIX);
    }

}

也许你遇到了同样的问题 - 我可以看到你正在使用DefaultMethodSecurityExpressionHandler并且它也使用bean GrantedAuthorityDefaults,所以如果你使用的是与我相同的Spring Security版本 - 4.2.1.RELEASE你是可能遇到了同样的问题。

答案 1 :(得分:3)

这是一个漫长的等待答案:

documentation清楚地描述了:

  

要使用hasPermission()表达式,必须显式配置   应用程序上下文中的PermissionEvaluator。这看起来   像这样的东西:

基本上我在AclConfiguration扩展GlobalMethodSecurityConfiguration

    @Override
    protected MethodSecurityExpressionHandler createExpressionHandler() {
        DefaultMethodSecurityExpressionHandler expressionHandler = new DefaultMethodSecurityExpressionHandler();
        expressionHandler.setPermissionEvaluator(new AclPermissionEvaluator(aclService()));
        expressionHandler.setPermissionCacheOptimizer(new AclPermissionCacheOptimizer(aclService()));
        return expressionHandler;
    }

Spring没有处理过这个问题!

我必须将AclConfigGlobalMethodSecurityConfiguration分开。如果后者中定义了@Bean,则上述方法不会被处理,这可能是一个错误(如果没有,欢迎任何关于主题的澄清)。

答案 2 :(得分:0)

您在数据库和配置中的数据看起来不错。我一直使用@PostFilter("hasPermission(filterObject, 'READ')")

我要检查以确保扩展UserDetails的用户类通过db中的getUsername()返回相同的用户名。同时检查以确保您的安全性和应用程序处于相同的上下文中。

hasPermission方法将Authentication对象作为第一个参数。

boolean hasPermission(Authentication authentication,
                      Object targetDomainObject,
                      Object permission)

Authentication对象是一个实现类,通常为UsernamePasswordAuthenticationToken。因此,getPrincipal()方法需要返回一个具有getUserName()方法的对象,该方法返回与数据库中相同的内容。

查看PrincipalSid

public PrincipalSid(Authentication authentication) {
    Assert.notNull(authentication, "Authentication required");
    Assert.notNull(authentication.getPrincipal(), "Principal required");

    if (authentication.getPrincipal() instanceof UserDetails) {
        this.principal = ((UserDetails) authentication.getPrincipal()).getUsername();
    }
    else {
        this.principal = authentication.getPrincipal().toString();
    }
}