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单点登录概念
单点登录（Single Sign On），简称为 SSO，是目前比较流行的企业业务整合的解决方案之一。SSO的定义是在多个应用系统中，用户只需要登录一次就可以访问所有相互信任的应用系统。登录逻辑如上图
基于Spring 全家桶的实现
技术选型：
Spring Boot
Spring Cloud
Spring Security oAuth2
客户端：
maven依赖
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security.oauth</groupId>
<artifactId>spring-security-oauth2</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-jwt</artifactId>
</dependency>
EnableOAuth2Sso 注解
入口类配置@@EnableOAuth2Sso
@SpringBootApplication
public class PigSsoClientDemoApplication {
public static void main(String[] args) {
SpringApplication.run(PigSsoClientDemoApplication.class, args);
}
}
配置文件
security:
oauth2:
client:
client-id: pig
client-secret: pig
user-authorization-uri: http://localhost:3000/oauth/authorize
access-token-uri: http://localhost:3000/oauth/token
scope: server
resource:
jwt:
key-uri: http://localhost:3000/oauth/token_key
sessions: never
SSO认证服务器
认证服务器配置
@Configuration
@Order(Integer.MIN_VALUE)
@EnableAuthorizationServer
public class PigAuthorizationConfig extends AuthorizationServerConfigurerAdapter {
@Override
public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
clients.inMemory()
.withClient(authServerConfig.getClientId())
.secret(authServerConfig.getClientSecret())
.authorizedGrantTypes(SecurityConstants.REFRESH_TOKEN, SecurityConstants.PASSWORD,SecurityConstants.AUTHORIZATION_CODE)
.scopes(authServerConfig.getScope());
}
@Override
public void configure(AuthorizationServerEndpointsConfigurer endpoints) {
endpoints
.tokenStore(new RedisTokenStore(redisConnectionFactory))
.accessTokenConverter(jwtAccessTokenConverter())
.authenticationManager(authenticationManager)
.exceptionTranslator(pigWebResponseExceptionTranslator)
.reuseRefreshTokens(false)
.userDetailsService(userDetailsService);
}
@Override
public void configure(AuthorizationServerSecurityConfigurer security) throws Exception {
security
.allowFormAuthenticationForClients()
.tokenKeyAccess("isAuthenticated()")
.checkTokenAccess("permitAll()");
}
@Bean
public PasswordEncoder passwordEncoder() {
return new BCryptPasswordEncoder();
}
@Bean
public JwtAccessTokenConverter jwtAccessTokenConverter() {
JwtAccessTokenConverter jwtAccessTokenConverter = new JwtAccessTokenConverter();
jwtAccessTokenConverter.setSigningKey(CommonConstant.SIGN_KEY);
return jwtAccessTokenConverter;
}
}
配置完成体验
- 访问SSO客户端的 index.html
- 重定向到SSO服务端的 Basic 认证
- 输入账号密码又重定向到原请求的 客户端index资源
总结
- 客户端访问服务端 403问题？ 用户需要拥有ROLE_USER的权限，具体的可以通过日志可以查看到报错。
- Possible CSRF detected - state parameter was present but no state could be found 目前是通过设置session： never或者 cotext-path解决
- 源码请参考 https://gitee.com/log4j/ 基于Spring Cloud、Spring Security Oauth2.0开发企业级认证与授权，提供常见服务监控、链路追踪、日志分析、缓存管理、任务调度等实现
