java – 在Spring Security中总是被拒绝访问 – DenyAllPermissionEvaluator

我在我的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:

> SO Q1
> SO Q2

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类:

@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,我已经为了这个问题的长度而跳过了CustomAuthenticationFailureHandler,CustomAuthenticationSuccessHandler,CustomNoRedirectStrategy和CustomUsernamePasswordAuthenticationForm。

而且我使用的是可以在here找到的MySQL模式。

我在我的acl相关表中添加条目如下:

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

(我有一个使用用户名演示的用户)

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)

但我所得到的只有:

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:

> hasPermission表达式:我用“READ”和“1”替代它,但是没有任何程度。
>我的数据库条目是不对的
>我没有实现自定义权限评估器。这是必需的,还是expressionHandler.setPermissionEvaluator(new AclPermissionEvaluator(aclService()));足够?

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:

现在的问题反映了关于身份验证/授权/ ACL的一切设置。

更新#3:

我现在很接近解决问题,唯一剩下的就是解决这个问题:

Custom PermissionEvaluator not called although set as PermissionEvaluator – DenyAllPermissionEvaluator

如果有人可以帮我解决这个问题,我终于可以写出我所经历的一切来解决这个问题。

我升级了我的应用程序以使用Spring Security 4.2.1.RELEASE然后我开始体验到所有@PreAuthorize注释方法中的意外访问被拒绝,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被默认字符串“ROLE_”作为前缀,而不管我将默认的前缀设置为空,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);

我所有的控制器方法都使用@PreAuthorize(“hasRole(‘my_ldap_group_name’)”)注释,但是,框架没有考虑到我的空角色前缀设置,因此使用ROLE_my_ldap_group_name来检查实际的角色。

在我深入框架的代码之后,我意识到org.springframework.security.web.access.expression.DefaultWebSecurityExpressionHandler类仍然将默认角色前缀设置为“ROLE_”。我跟踪了它的值的源码,我发现它首先检查一个声明的org.springframework.security.config.core.GrantedAuthorityDefaults类的bean,以便在bean的第一次初始化期间查找默认的前缀org.springframework .security.config.annotation.web.configurers.ExpressionUrlAuthorizationConfigurer,但是因为这个bean初始化器找不到它声明,所以最终使用前面提到的默认前缀。

我相信这不是一个预期的行为:Spring Security应该考虑与ldapAuthentication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);
    }

}

也许你会遇到同样的问题 – 我可以看到你正在使用DefaultMethodSecurityExpressionHandler,它也使用了GrantedAuthorityDefaults,所以如果你使用的是与我一样的Spring Security版本 – 4.2.1.RELEASE你可能正在运行同样的问题。

http://stackoverflow.com/questions/41872192/access-is-always-denied-in-spring-security-denyallpermissionevaluator

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