Spring Cloud下基于OAUTH2认证授权的实现示例

在Spring Cloud需要使用OAUTH2来实现多个微服务的统一认证授权，通过向OAUTH服务发送某个类型的grant type进行集中认证和授权，从而获得access_token，而这个token是受其他微服务信任的，我们在后续的访问可以通过access_token来进行，从而实现了微服务的统一认证授权。

本示例提供了四大部分：

1. discovery-service:服务注册和发现的基本模块
2. auth-server:OAUTH2认证授权中心
3. order-service:普通微服务，用来验证认证和授权
4. api-gateway:边界网关(所有微服务都在它之后)

OAUTH2中的角色：

1. Resource Server:被授权访问的资源
2. Authotization Server：OAUTH2认证授权中心
3. Resource Owner： 用户
4. Client：使用API的客户端(如Android 、IOS、web app)

Grant Type：

1. Authorization Code:用在服务端应用之间
2. Implicit:用在移动app或者web app(这些app是在用户的设备上的，如在手机上调起微信来进行认证授权)
3. Resource Owner Password Credentials(password):应用直接都是受信任的(都是由一家公司开发的，本例子使用
4. Client Credentials:用在应用API访问。

1.基础环境

使用Postgres作为账户存储，Redis作为Token存储，使用docker-compose在服务器上启动Postgres和Redis。

Redis:
 image: sameersbn/redis:latest
 ports:
 - "6379:6379"
 volumes:
 - /srv/docker/redis:/var/lib/redis:Z
 restart: always

PostgreSQL:
 restart: always
 image: sameersbn/postgresql:9.6-2
 ports:
 - "5432:5432"
 environment:
 - DEBUG=false

 - DB_USER=wang
 - DB_PASS=yunfei
 - DB_NAME=order
 volumes:
 - /srv/docker/postgresql:/var/lib/postgresql:Z

2.auth-server

2.1 OAuth2服务配置

Redis用来存储token，服务重启后，无需重新获取token.

@Configuration
@EnableAuthorizationServer
public class AuthorizationServerConfig extends AuthorizationServerConfigurerAdapter {
 @Autowired
 private AuthenticationManager authenticationManager;
 @Autowired
 private RedisConnectionFactory connectionFactory;

 @Bean
 public RedisTokenStore tokenStore() {
  return new RedisTokenStore(connectionFactory);
 }

 @Override
 public void configure(AuthorizationServerEndpointsConfigurer endpoints) throws Exception {
  endpoints
    .authenticationManager(authenticationManager)
    .tokenStore(tokenStore());
 }

 @Override
 public void configure(AuthorizationServerSecurityConfigurer security) throws Exception {
  security
    .tokenKeyAccess("permitAll()")
    .checkTokenAccess("isAuthenticated()");
 }

 @Override
 public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
  clients.inMemory()
    .withClient("android")
    .scopes("xx") //此处的scopes是无用的，可以随意设置
    .secret("android")
    .authorizedGrantTypes("password", "authorization_code", "refresh_token")
   .and()
    .withClient("webapp")
    .scopes("xx")
    .authorizedGrantTypes("implicit");
 }
}

2.2 Resource服务配置

auth-server提供user信息，所以auth-server也是一个Resource Server

@Configuration
@EnableResourceServer
public class ResourceServerConfig extends ResourceServerConfigurerAdapter {

 @Override
 public void configure(HttpSecurity http) throws Exception {
  http
    .csrf().disable()
    .exceptionHandling()
    .authenticationEntryPoint((request, response, authException) -> response.sendError(HttpServletResponse.SC_UNAUTHORIZED))
   .and()
    .authorizeRequests()
    .anyRequest().authenticated()
   .and()
    .httpBasic();
 }
}

@RestController
public class UserController {

 @GetMapping("/user")
 public Principal user(Principal user){
  return user;
 }
}

2.3 安全配置

@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {

 @Bean
 public UserDetailsService userDetailsService(){
  return new DomainUserDetailsService();
 }

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

 @Override
 protected void configure(AuthenticationManagerBuilder auth) throws Exception {
  auth
    .userDetailsService(userDetailsService())
    .passwordEncoder(passwordEncoder());
 }

 @Bean
 public SecurityEvaluationContextExtension securityEvaluationContextExtension() {
  return new SecurityEvaluationContextExtension();
 }

 //不定义没有password grant_type
 @Override
 @Bean
 public AuthenticationManager authenticationManagerBean() throws Exception {
  return super.authenticationManagerBean();
 }

}

2.4 权限设计

采用用户(SysUser) 角色(SysRole) 权限(SysAuthotity)设置，彼此之间的关系是多对多。通过DomainUserDetailsService 加载用户和权限。

2.5 配置

spring:
 profiles:
 active: ${SPRING_PROFILES_ACTIVE:dev}
 application:
  name: auth-server

 jpa:
 open-in-view: true
 database: POSTGRESQL
 show-sql: true
 hibernate:
  ddl-auto: update
 datasource:
 platform: postgres
 url: jdbc:postgresql://192.168.1.140:5432/auth
 username: wang
 password: yunfei
 driver-class-name: org.postgresql.Driver
 redis:
 host: 192.168.1.140

server:
 port: 9999

eureka:
 client:
 serviceUrl:
  defaultZone: http://${eureka.host:localhost}:${eureka.port:8761}/eureka/

logging.level.org.springframework.security: DEBUG

logging.leve.org.springframework: DEBUG

##很重要
security:
 oauth2:
 resource:
  filter-order: 3

2.6 测试数据

data.sql里初始化了两个用户admin->ROLE_ADMIN->query_demo,wyf->ROLE_USER

3.order-service

3.1 Resource服务配置

@Configuration
@EnableResourceServer
public class ResourceServerConfig extends ResourceServerConfigurerAdapter{

 @Override
 public void configure(HttpSecurity http) throws Exception {
  http
    .csrf().disable()
    .exceptionHandling()
    .authenticationEntryPoint((request, response, authException) -> response.sendError(HttpServletResponse.SC_UNAUTHORIZED))
   .and()
    .authorizeRequests()
    .anyRequest().authenticated()
   .and()
    .httpBasic();
 }
}

3.2 用户信息配置

order-service是一个简单的微服务，使用auth-server进行认证授权，在它的配置文件指定用户信息在auth-server的地址即可：

security:
 oauth2:
 resource:
  id: order-service
  user-info-uri: http://localhost:8080/uaa/user
  prefer-token-info: false

3.3 权限测试控制器

具备authority未query-demo的才能访问，即为admin用户

@RestController
public class DemoController {
 @GetMapping("/demo")
 @PreAuthorize("hasAuthority('query-demo')")
 public String getDemo(){
  return "good";
 }
}

4 api-gateway

api-gateway在本例中有2个作用：

1. 本身作为一个client，使用implicit
2. 作为外部app访问的方向代理

4.1 关闭csrf并开启Oauth2 client支持

@Configuration
@EnableOAuth2Sso
public class SecurityConfig extends WebSecurityConfigurerAdapter{
 @Override
 protected void configure(HttpSecurity http) throws Exception {

  http.csrf().disable();
 }
}

4.2 配置

zuul:
 routes:
 uaa:
  path: /uaa/**
  sensitiveHeaders:
  serviceId: auth-server
 order:
  path: /order/**
  sensitiveHeaders:
  serviceId: order-service
 add-proxy-headers: true

security:
 oauth2:
 client:
  access-token-uri: http://localhost:8080/uaa/oauth/token
  user-authorization-uri: http://localhost:8080/uaa/oauth/authorize
  client-id: webapp
 resource:
  user-info-uri: http://localhost:8080/uaa/user
  prefer-token-info: false

5 演示

5.1 客户端调用

使用Postman向http://localhost:8080/uaa/oauth/token发送请求获得access_token(admin用户的如7f9b54d4-fd25-4a2c-a848-ddf8f119230b)

admin用户

wyf用户

5.2 api-gateway中的webapp调用

暂时没有做测试，下次补充。

6 源码地址

https://github.com/wiselyman/uaa-zuul

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持我们。

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