解決Spring Security的許可權設定不生效問題

2022-03-12 19:00:17

Spring Security許可權設定不生效

在整合Spring Security做介面許可權設定時，在給使用者設定的許可權後，還是一直顯示“無許可權”或者"許可權不足"。

1、不生效的例子

介面

@RequestMapping("/admin")
    @ResponseBody
    @PreAuthorize("hasRole('ADMIN')")
    public String printAdmin() {
        return "如果你看見這句話，說明你有ROLE_ADMIN角色";
    }
    @RequestMapping("/user")
    @ResponseBody
    @PreAuthorize("hasRole('USER')")
    public String printUser() {
        return "如果你看見這句話，說明你有ROLE_USER角色";
    }

SecurityConfig

	.and()
      .authorizeRequests()
      .antMatchers("/user").hasAnyRole("USER") 
      .antMatchers("/admin").hasAnyRole("ADMIN")
      .anyRequest().authenticated() //必須授權才能範圍

使用者攜帶許可權

2、解決辦法

經測試，只有使用者攜帶許可權的欄位為 “ROLE_” + 介面/設定中的許可權欄位，才能控制生效，舉例：

將上面的使用者攜帶許可權改為

Spring Security動態設定許可權

匯入依賴

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>2.1.3</version>
</dependency>
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid-spring-boot-starter</artifactId>
    <version>1.1.22</version>
</dependency>
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <scope>runtime</scope>
    <version>5.1.46</version>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-test</artifactId>
    <scope>test</scope>
    <exclusions>
        <exclusion>
            <groupId>org.junit.vintage</groupId>
            <artifactId>junit-vintage-engine</artifactId>
        </exclusion>
    </exclusions>
</dependency>
<dependency>
    <groupId>org.springframework.security</groupId>
    <artifactId>spring-security-test</artifactId>
    <scope>test</scope>
</dependency>

建立UserMapper類&&UserMapper.xml

和MenuMapper類&&MenuMapperxml

UserMapper

@Mapper
public interface UserMapper {
    User getUserByName(String name);
    List<Role> getRoleById(Integer id);
}

UserMapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.qwl.mysecuritydy.mapper.UserMapper">
    <select id="getUserByName" resultType="com.qwl.mysecuritydy.bean.User">
        select * from user where username= #{name}
    </select>
    <select id="getRoleById" resultType="com.qwl.mysecuritydy.bean.Role">
        select * from role where id in (select rid from user_role where uid = #{uid})
    </select>
</mapper>

MenuMapper

@Mapper
public interface MenuMapper {
    List<Menu> getMenus();
}

MemuMapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.qwl.mysecuritydy.mapper.MenuMapper">
    <resultMap id="menus_map" type="com.qwl.mysecuritydy.bean.Menu">
        <id property="id" column="id"/>
        <result property="pattern" column="pattern"/>
        <collection property="roles" ofType="com.qwl.mysecuritydy.bean.Role">
            <id property="id" column="rid"/>
            <result property="name" column="rname"/>
            <result property="nameZh" column="rnameZh"/>
        </collection>
    </resultMap>
    <select id="getMenus" resultMap="menus_map">
        select m.*,r.id as rid,r.name as rname,r.nameZh as rnameZh from menu_role mr left join
        menu m on mr.mid = m.id left join role r on mr.rid = r.id
    </select>
</mapper>

建立UserService MenuService

建立UserService實現UserServiceDetails介面

@Service
public class UserService implements UserDetailsService {
    @Autowired
    private UserMapper userMapper;
    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        User user = userMapper.getUserByName(username);
        if(user ==null){
            throw new UsernameNotFoundException("使用者名稱不存在");
        }
        user.setRoleList(userMapper.getRoleById(user.getId()));
        return user;
    }
}

建立MenuService

@Service
public class MenuService {
    @Autowired
    private MenuMapper menuMapper;
    public List<Menu> getMenus() {return menuMapper.getMenus();}
}

建立CustomFilterInvocationSecurityMetadataSource

實現介面FilterInvocationSecurityMetadataSource

注：加@comppent註解，把自定義類註冊成spring元件

supports返回值設成true表示支援

重寫getAttributes()方法

invacation 呼叫，求助
metadata 後設資料

@Component
public class CustomFilterInvocationSecurityMetadataSource implements FilterInvocationSecurityMetadataSource {
    //ant風格的路徑匹配器
    AntPathMatcher pathMatcher = new AntPathMatcher();
    @Autowired
    private MenuService menuService;
        //supports返回值設成true表示支援
    @Override
    public boolean supports(Class<?> aClass) {
        return true;
    }
    @Override
    public Collection<ConfigAttribute> getAttributes(Object object) throws IllegalArgumentException {
        //獲取當前使用者請求的url
        String requestUrl=((FilterInvocation) object).getRequestUrl();
        //資料庫中查詢出所有的路徑
        List<Menu> menus  =menuService.getMenus();
        for (Menu menu : menus) {
            //判斷使用者請求的url和資料庫的url是否能匹配的上
            if (pathMatcher.match(menu.getPattern(), requestUrl)) {
                List<Role> roles =menu.getRoles();
                String[] roleStr = new String[roles.size()];
                for (int i = 0; i < roles.size(); i++) {
                    roleStr[i]=roles.get(i).getName();
                }
                //將篩選的url路徑所具備的角色返回回去
                return SecurityConfig.createList(roleStr);
            }
        }
        //如果沒有匹配上就返回一個預設的角色，作用好比作一個標記
        return SecurityConfig.createList("ROLE_def");
    }
    @Override
    public Collection<ConfigAttribute> getAllConfigAttributes() {
        return null;
    }
}

建立CustomAccessDecisionManager

實現AccessDecisionManager介面 access 通道

注：加@comppent註解，把自定義類註冊成spring元件

將兩個supports()都設定成true

重寫decide()方法

@Component
public class CustomAccessDecisionManager implements AccessDecisionManager {
    @Override
    public void decide(Authentication authentication, Object o, Collection<ConfigAttribute> collection) throws AccessDeniedException, InsufficientAuthenticationException {
        //configattributes裡存放著CustomFilterInvocationSecurityMetadataSource過濾出來的角色
        for (ConfigAttribute configAttribute : collection) {
            //如果你請求的url在資料庫中不具備角色
            if ("ROLE_def".equals(configAttribute.getAttribute())) {
                //在判斷是不是匿名使用者(也就是未登入)
                if (authentication instanceof AnonymousAuthenticationToken) {
                    System.out.println(">>>>>>>>>>>>>>>>匿名使用者>>>>>>>>>>>>>>");
                    throw new AccessDeniedException("許可權不足，無法存取");
                }else{
                    //這裡面就是已經登入的其他型別使用者，直接放行
                    System.out.println(">>>>>>>>>>>其他型別使用者>>>>>>>>>>>");
                    return;
                }
            }
            //如果你存取的路徑在資料庫中具有角色就會來到這裡
            //Autherntication這裡面存放著登入後的使用者所有資訊
            Collection<? extends GrantedAuthority> authorities = authentication.getAuthorities();
            for (GrantedAuthority authority : authorities) {
                System.out.println(">>>>>>>authority(賬戶所擁有的許可權)："+authority.getAuthority());
                System.out.println(">>>>>>>configAttribute(路徑需要的角色):"+configAttribute.getAttribute());
                //路徑需要的角色和賬戶所擁有的角色作比較
                if (authority.getAuthority().equals(configAttribute.getAttribute())) {
                    System.out.println(">>>>>>>>>>>>>>>>>>進來>>>>>>>>>>>>>>>>>");
                    return;
                }
            }
        }
    }
    @Override
    public boolean supports(ConfigAttribute configAttribute) {
        return true;
    }
    @Override
    public boolean supports(Class<?> aClass) {
        return true;
    }
}

建立WebSecurityConfig設定類

WebSecurityConfig實現WebSecurityConfigurerAdapter

注入一會所需要的類

SpringSecurity5.0之後必須密碼加密

將資料庫查出的賬戶密碼交給SpringSecurity去判斷

設定HttpSecurity

@Configuration
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
    @Autowired
    private UserService userService;
    @Autowired
    private CustomFilterInvocationSecurityMetadataSource customFilterInvocationSecurityMetadataSource;
    @Autowired
    private CustomAccessDecisionManager customAccessDecisionManager;
    //springSecutity5.0之後必密碼加密
    @Bean
    PasswordEncoder passwordEncoder(){
        return new BCryptPasswordEncoder();
    }
    //將資料庫查出的賬戶密碼交給springsecurity去判斷
    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userService);
    }
    //設定HttpSecurity
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
                .withObjectPostProcessor(new ObjectPostProcessor<FilterSecurityInterceptor>() {
                    @Override
                    public <O extends FilterSecurityInterceptor> O postProcess(O object){
                        object.setSecurityMetadataSource(customFilterInvocationSecurityMetadataSource);
                        object.setAccessDecisionManager(customAccessDecisionManager);
                        return object;
                    }
                })
                .and()
                .formLogin()
                .permitAll()
                .and()
                .csrf().disable();
    }
}

Controller

@RestController
public class HelloController {
    @GetMapping("/hello")
    public String hello(){
        return "hello";
    }
    @GetMapping("/dba/hello")
    public String dba(){
        return "hello dba";
    }
    @GetMapping("/admin/hello")
    public String admin(){
        return "hello admin";
    }
    @GetMapping("/user/hello")
    public String user(){
        return "hello user";
    }
}