04 SaaS平台权限shiro的开发

01、spring整合Shiro

<dependency>

<groupId>org.apache.shiro</groupId>

<artifactId>shiro-spring</artifactId>

<version>1.3.2</version>

</dependency>

<dependency>

<groupId>org.apache.shiro</groupId>

<artifactId>shiro-core</artifactId>

<version>1.3.2</version>

</dependency>

02、登录方法

//1.解决跨域
@CrossOrigin
//2.声明restContoller
@RestController
//3.设置父路径
@RequestMapping(value="/sys")
public class UserController extends BaseController {

    /**
     * 用户登录
     *
     */
    @RequestMapping(value="/login",method = RequestMethod.POST)
    public Result login(@RequestBody Map<String,String> loginMap) {
        String mobile = loginMap.get("mobile");
        String password = loginMap.get("password");
        try {
            //1.构造登录令牌 UsernamePasswordToken
            //加密密码
            password = new Md5Hash(password,mobile,3).toString();  //1.密码，盐，加密次数
            UsernamePasswordToken upToken = new UsernamePasswordToken(mobile,password);
            //2.获取subject
            Subject subject = SecurityUtils.getSubject();
            //3.调用login方法，进入realm完成认证
            subject.login(upToken);
            //4.获取sessionId
            String sessionId = (String)subject.getSession().getId();
            //5.构造返回结果
            return new Result(ResultCode.SUCCESS,sessionId);
        }catch (Exception e) {
            return new Result(ResultCode.MOBILEORPASSWORDERROR);
        }

    }

}

03、自定义realm

//公共的realm：获取安全数据，构造权限信息
public class CusAuthorizationRealm  extends AuthorizingRealm {

    public void setName(String name) {
        super.setName("SaaSRealm");
    }

    //授权方法
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
        //1.获取安全数据
        ProfileResult result = (ProfileResult)principalCollection.getPrimaryPrincipal();
        //2.获取权限信息
        Set<String> apisPerms = (Set<String>)result.getRoles().get("apis");
        //3.构造权限数据，返回值
        SimpleAuthorizationInfo info = new  SimpleAuthorizationInfo();
        info.setStringPermissions(apisPerms);
        return info;
    }

    //认证方法
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
        return null;
    }
}

public class UserRealm extends CusAuthorizationRealm {

    @Autowired
    private UserService userService;

    @Autowired
    private PermissionService permissionService;

    //认证方法
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
        //1.获取用户的手机号和密码
        UsernamePasswordToken upToken = (UsernamePasswordToken) authenticationToken;
        String mobile = upToken.getUsername();
        String password = new String( upToken.getPassword());
        //2.根据手机号查询用户
        User user = userService.findByMobile(mobile);
        //3.判断用户是否存在，用户密码是否和输入密码一致
        if(user != null && user.getPassword().equals(password)) {
            //4.构造安全数据并返回（安全数据：用户基本数据，权限信息 profileResult）
            ProfileResult result = null;
            if("user".equals(user.getLevel())) {
                result = new ProfileResult(user);
            }else {
                Map map = new HashMap();
                if("coAdmin".equals(user.getLevel())) {
                    map.put("enVisible","1");
                }
                List<Permission> list = permissionService.findAll(map);
                result = new ProfileResult(user,list);
            }
            //构造方法：安全数据，密码，realm域名
            SimpleAuthenticationInfo info = new SimpleAuthenticationInfo(result,user.getPassword(),this.getName());
            return info;
        }
        //返回null，会抛出异常，标识用户名和密码不匹配
        return null;
    }
}

03、Shiro的配置【Shiro 架构的心脏】

 

@Configuration
public class ShiroConfiguration {

    //1.创建realm
    @Bean
    public IhrmRealm getRealm() {
        return new UserRealm();
    }

    //2.创建安全管理器
    @Bean
    public SecurityManager getSecurityManager(IhrmRealm realm) {
        DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager();
        securityManager.setRealm(realm);

        //将自定义的会话管理器注册到安全管理器中
        securityManager.setSessionManager(sessionManager());
        //将自定义的redis缓存管理器注册到安全管理器中
        securityManager.setCacheManager(cacheManager());

        return securityManager;
    }

    //3.配置shiro的过滤器工厂

    /**
     * 再web程序中，shiro进行权限控制全部是通过一组过滤器集合进行控制
     *
     */
    @Bean
    public ShiroFilterFactoryBean shiroFilter(SecurityManager securityManager) {

        //1.创建过滤器工厂
        ShiroFilterFactoryBean filterFactory = new ShiroFilterFactoryBean();
        //2.设置安全管理器
        filterFactory.setSecurityManager(securityManager);
        //3.通用配置（跳转登录页面，未授权跳转的页面）
        filterFactory.setLoginUrl("/autherror?code=1");//跳转url地址
        filterFactory.setUnauthorizedUrl("/autherror?code=2");//未授权的url
        //4.设置过滤器集合
        Map<String,String> filterMap = new LinkedHashMap<>();
        //anon -- 匿名访问
        filterMap.put("/sys/login","anon");
        filterMap.put("/autherror","anon");
        //begin-->>重点
        /*
        可以设置访问数据库去处理
         */
        //具有指定权限访问filterMap.put("/xxx/xxxx", "perms[xxxxx....]");
        //end-->>重点


        //注册
        //authc -- 认证之后访问（登录）
        filterMap.put("/**","authc");
        //perms -- 具有某中权限 (使用注解配置授权)
        filterFactory.setFilterChainDefinitionMap(filterMap);

        return filterFactory;
    }


    @Value("${spring.redis.host}")
    private String host;
    @Value("${spring.redis.port}")
    private int port;

    /**
     * 1.redis的控制器，操作redis
     */
    public RedisManager redisManager() {
        RedisManager redisManager = new RedisManager();
        redisManager.setHost(host);
        redisManager.setPort(port);
        return redisManager;
    }

    /**
     * 2.sessionDao
     */
    public RedisSessionDAO redisSessionDAO() {
        RedisSessionDAO sessionDAO = new RedisSessionDAO();
        sessionDAO.setRedisManager(redisManager());
        return sessionDAO;
    }

    /**
     * 3.会话管理器
     */
    public DefaultWebSessionManager sessionManager() {
        CustomSessionManager sessionManager = new CustomSessionManager();
        sessionManager.setSessionDAO(redisSessionDAO());
        //禁用cookie
        sessionManager.setSessionIdCookieEnabled(false);
        //禁用url重写   url;jsessionid=id
        sessionManager.setSessionIdUrlRewritingEnabled(false);
        return sessionManager;
    }

    /**
     * 4.缓存管理器
     */
    public RedisCacheManager cacheManager() {
        RedisCacheManager redisCacheManager = new RedisCacheManager();
        redisCacheManager.setRedisManager(redisManager());
        return redisCacheManager;
    }




    //开启对shior注解的支持
    @Bean
    public AuthorizationAttributeSourceAdvisor authorizationAttributeSourceAdvisor(SecurityManager securityManager) {
        AuthorizationAttributeSourceAdvisor advisor = new AuthorizationAttributeSourceAdvisor();
        advisor.setSecurityManager(securityManager);
        return advisor;
    }
}

04、基于配置的授权

//配置请求连接过滤器配置//匿名访问（所有人员可以使用）
filterMap.put("/user/home", "anon");
//具有指定权限访问
filterMap.put("/user/find", "perms[user-find]");
//认证之后访问（登录之后可以访问）
filterMap.put("/user/**", "authc");
//具有指定角色可以访问
filterMap.put("/user/**", "roles[系统管理员]");

05、基于注解的授权

基于RequiresPermissions

//查询    RequiresRoles
@RequiresPermissions(value = "user-find")    
public String find() {
    return "查询用户成功";    
}

06、shiro的会话管理

SessionManager（会话管理器）：管理所有Subject的session包括创建、维护、删除、失效、验证等工作。SessionManager是顶层组件，由SecurityManager管理

1. DefaultSessionManager：用于JavaSE环境

2. ServletContainerSessionManager：用于Web环境，直接使用servlet容器的会话。

3. DefaultWebSessionManager：用于web环境，自己维护会话（自己维护着会话，直接废弃了Servlet容器的会话管理）。 

public class CustomSessionManager extends DefaultWebSessionManager {


    /**
     * 头信息中具有sessionid
     *      请求头：Authorization： sessionid
     *
     * 指定sessionId的获取方式
     */
    protected Serializable getSessionId(ServletRequest request, ServletResponse response) {

        //获取请求头Authorization中的数据
        String id = WebUtils.toHttp(request).getHeader("Authorization");
        if(StringUtils.isEmpty(id)) {
            //如果没有携带，生成新的sessionId
            return super.getSessionId(request,response);
        }else{
            //请求头信息：bearer sessionid
            id = id.replaceAll("Bearer ","");
            //返回sessionId；
            request.setAttribute(ShiroHttpServletRequest.REFERENCED_SESSION_ID_SOURCE, "header");
            request.setAttribute(ShiroHttpServletRequest.REFERENCED_SESSION_ID, id);
            request.setAttribute(ShiroHttpServletRequest.REFERENCED_SESSION_ID_IS_VALID, Boolean.TRUE);
            return id;
        }
    }
}

07、结合redis的统一会话管理

<dependency>

<groupId>org.crazycake</groupId>

<artifactId>shiro-redis</artifactId>

<version>3.0.0</version>

</dependency>

redis:

  host: 127.0.0.1

  port: 6379

08、使用shiro从redis中获取认证数据

public class BaseController {

    protected HttpServletRequest request;
    protected HttpServletResponse response;
    protected String companyId;
    private String userId;
    protected String companyName;
    protected Claims claims;

    //使用shiro获取
    @ModelAttribute
    public void setResAnReq(HttpServletRequest request,HttpServletResponse response) {
        this.request = request;
        this.response = response;

        //获取session中的安全数据
        Subject subject = SecurityUtils.getSubject();
        //1.subject获取所有的安全数据集合
        PrincipalCollection principals = subject.getPrincipals();
        if(principals != null && !principals.isEmpty()){
            //2.获取安全数据
            ProfileResult result = (ProfileResult)principals.getPrimaryPrincipal();
            this.companyId = result.getCompanyId();
            this.companyName = result.getCompany();
            this.userId = result.getUserId();
            System.out.println(companyId);
        }
    }

}

09、封装安全数据

 

public class ProfileResult implements Serializable,AuthCachePrincipal {
    private String userId;
    private String mobile;
    private String username;
    private String company;
    private String companyId;
    private Map<String,Object> roles = new HashMap<>();

    /**
     *
     * @param user
     */
    public ProfileResult(User user, List<Permission> list) {
        this.mobile = user.getMobile();
        this.username = user.getUsername();
        this.company = user.getCompanyName();
        this.companyId = user.getCompanyId();
        this.userId = user.getId();
        Set<String> menus = new HashSet<>();
        Set<String> points = new HashSet<>();
        Set<String> apis = new HashSet<>();

        for (Permission perm : list) {
            String code = perm.getCode();
            if(perm.getType() == 1) {
                menus.add(code);
            }else if(perm.getType() == 2) {
                points.add(code);
            }else {
                apis.add(code);
            }
        }
        this.roles.put("menus",menus);
        this.roles.put("points",points);
        this.roles.put("apis",apis);
    }


    public ProfileResult(User user) {
        this.mobile = user.getMobile();
        this.username = user.getUsername();
        this.company = user.getCompanyName();
        this.companyId = user.getCompanyId();
        this.userId = user.getId();
        Set<Role> roles = user.getRoles();
        Set<String> menus = new HashSet<>();
        Set<String> points = new HashSet<>();
        Set<String> apis = new HashSet<>();
        for (Role role : roles) {
            Set<Permission> perms = role.getPermissions();
            for (Permission perm : perms) {
                String code = perm.getCode();
                if(perm.getType() == 1) {
                    menus.add(code);
                }else if(perm.getType() == 2) {
                    points.add(code);
                }else {
                    apis.add(code);
                }
            }
        }

        this.roles.put("menus",menus);
        this.roles.put("points",points);
        this.roles.put("apis",apis);
    }

    @Override
    public String getAuthCacheKey() {
        return null;
    }
}