Spring Cloud Security: Oauth2 achieve single sign-on

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Summary

Spring Cloud Security is SpringBoot build secure applications provide a range of solutions, combined with Oauth2 can achieve single sign-on, this article will use to log detailed description of its single point.

Single Sign Profile

Single sign-on (Single Sign On) means that when there are multiple systems need to log in, users only need to log in to a system, you can access other systems need to log in without having to log on.

Creating oauth2-client module

Here we create a oauth2-client service as clients need to sign a service, use oauth2-jwt-server service in the previous section as an authentication service, when we log in on oauth2-jwt-server service, you can directly access oauth2 -client need to log interface, to demonstrate single sign-on feature.

• Add its dependencies in pom.xml:

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-oauth2</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-security</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
    <groupId>io.jsonwebtoken</groupId>
    <artifactId>jjwt</artifactId>
    <version>0.9.0</version>
</dependency>
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• Configured in application.yml in:

server:
  port: 9501
  servlet:
    session:
      cookie:
        name: OAUTH2-CLIENT-SESSIONID #防止Cookie冲突，冲突会导致登录验证不通过
oauth2-server-url: http://localhost:9401
spring:
  application:
    name: oauth2-client
security:
  oauth2: #与oauth2-server对应的配置
    client:
      client-id: admin
      client-secret: admin123456
      user-authorization-uri: ${oauth2-server-url}/oauth/authorize
      access-token-uri: ${oauth2-server-url}/oauth/token
    resource:
      jwt:
        key-uri: ${oauth2-server-url}/oauth/token_key
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• Add @ EnableOAuth2Sso notes on startup classes to enable single sign-on:

@EnableOAuth2Sso
@SpringBootApplication
public class Oauth2ClientApplication {

    public static void main(String[] args) {
        SpringApplication.run(Oauth2ClientApplication.class, args);
    }

}
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• Add interface is used to obtain the currently logged on user information:

/**
 * Created by macro on 2019/9/30.
 */
@RestController
@RequestMapping("/user")
public class UserController {
    
    @GetMapping("/getCurrentUser")
    public Object getCurrentUser(Authentication authentication) {
        return authentication;
    }

}
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Change the authentication server configuration

Modify AuthorizationServerConfig class oauth2-jwt-server module, the path is bound to jump HTTP: // localhost: 9501 / the Login , and add obtain identity authentication secret key.

/**
 * 认证服务器配置
 * Created by macro on 2019/9/30.
 */
@Configuration
@EnableAuthorizationServer
public class AuthorizationServerConfig extends AuthorizationServerConfigurerAdapter {
    //以上省略一堆代码...
    @Override
    public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
        clients.inMemory()
                .withClient("admin")
                .secret(passwordEncoder.encode("admin123456"))
                .accessTokenValiditySeconds(3600)
                .refreshTokenValiditySeconds(864000)
//                .redirectUris("http://www.baidu.com")
                .redirectUris("http://localhost:9501/login") //单点登录时配置
                .scopes("all")
                .authorizedGrantTypes("authorization_code","password","refresh_token");
    }

    @Override
    public void configure(AuthorizationServerSecurityConfigurer security) {
        security.tokenKeyAccess("isAuthenticated()"); // 获取密钥需要身份认证，使用单点登录时必须配置
    }
}
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Web single sign-on demo

• Start oauth2-client services and oauth2-jwt-server services;

• Access client requires authorization interface http: // localhost: 9501 / user / getCurrentUser will jump to the login interface authorization services;

• After login operation jumps to the authorization page;

• Will jump to the original post-authorization required permissions interface address, show the user login information;

• If you need to skip the authorization operations may be added automatically authorize autoApprove(true)configuration:

/**
 * 认证服务器配置
 * Created by macro on 2019/9/30.
 */
@Configuration
@EnableAuthorizationServer
public class AuthorizationServerConfig extends AuthorizationServerConfigurerAdapter {
    //以上省略一堆代码...
    @Override
    public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
        clients.inMemory()
                .withClient("admin")
                .secret(passwordEncoder.encode("admin123456"))
                .accessTokenValiditySeconds(3600)
                .refreshTokenValiditySeconds(864000)
//                .redirectUris("http://www.baidu.com")
                .redirectUris("http://localhost:9501/login") //单点登录时配置
                .autoApprove(true) //自动授权配置
                .scopes("all")
                .authorizedGrantTypes("authorization_code","password","refresh_token");
    }
}
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Call Interface single sign-on demo

Here we use Postman to demonstrate how to use the right way at the client interface call to register.

• Access client need to sign an interface: HTTP: // localhost: 9501 / the User / getCurrentUser

• Use Oauth2 gain access authentication token:

• Enter the token to gain access relevant information, click on the request token:

• At this time, it will jump to the authentication server for login operation:

• After a successful login using the acquired token:

• Finally, request interface can obtain the following information:

{
    "authorities": [
        {
            "authority": "admin"
        }
    ],
    "details": {
        "remoteAddress": "0:0:0:0:0:0:0:1",
        "sessionId": "63BB793E35383B2FFC608333B3BF4988",
        "tokenValue": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VyX25hbWUiOiJtYWNybyIsInNjb3BlIjpbImFsbCJdLCJleHAiOjE1NzI2OTAxNzUsImF1dGhvcml0aWVzIjpbImFkbWluIl0sImp0aSI6IjIwN2U5MTQzLTVjNTUtNDhkMS1iZmU3LTgwMzUyZTQ3Y2QyZCIsImNsaWVudF9pZCI6ImFkbWluIiwiZW5oYW5jZSI6ImVuaGFuY2UgaW5mbyJ9.xf3cBu9yCm0sME0j3UcP53FwF4tJVJC5aJbEj_Y2XcU",
        "tokenType": "bearer",
        "decodedDetails": null
    },
    "authenticated": true,
    "userAuthentication": {
        "authorities": [
            {
                "authority": "admin"
            }
        ],
        "details": null,
        "authenticated": true,
        "principal": "macro",
        "credentials": "N/A",
        "name": "macro"
    },
    "clientOnly": false,
    "oauth2Request": {
        "clientId": "admin",
        "scope": [
            "all"
        ],
        "requestParameters": {
            "client_id": "admin"
        },
        "resourceIds": [],
        "authorities": [],
        "approved": true,
        "refresh": false,
        "redirectUri": null,
        "responseTypes": [],
        "extensions": {},
        "grantType": null,
        "refreshTokenRequest": null
    },
    "principal": "macro",
    "credentials": "",
    "name": "macro"
}
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Add oauth2-client privilege check

• Adding Configuration-based open method of checking the permissions:

/**
 * 在接口上配置权限时使用
 * Created by macro on 2019/10/11.
 */
@Configuration
@EnableGlobalMethodSecurity(prePostEnabled = true)
@Order(101)
public class SecurityConfig extends WebSecurityConfigurerAdapter {
}
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• Add the required permissions admin interface in UserController in:

/**
 * Created by macro on 2019/9/30.
 */
@RestController
@RequestMapping("/user")
public class UserController {

    @PreAuthorize("hasAuthority('admin')")
    @GetMapping("/auth/admin")
    public Object adminAuth() {
        return "Has admin auth!";
    }

}
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• Access requires admin privileges Interface: HTTP: // localhost: 9501 / the User / auth / admin

• Use no adminauthority account, such as andy:123456access to the interfaces after obtaining a token, you will find no access.

To use the module

springcloud-learning
├── oauth2-jwt-server -- 使用jwt的oauth2认证测试服务
└── oauth2-client -- 单点登录的oauth2客户端服务
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Project Source Address

github.com/macrozheng/…

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