Java中OAuth2.0第三方授权原理与实战

网友投稿 321 2022-07-27


目录RFC6749OAuth 2.0授权4大模式合同到期后的续约机制OAuth2.0第三方授权实战oauth-clientoauth-server

RFC6749

OAuth2的官方文档在RFC6749:https://datatracker.ietf.org/doc/html/rfc6749

以王者荣耀请求微信登录的过程为例

A:Client申请访问用户资源B:用户授权(过程较复杂)一次有效C:Client向Server请求一个长时间有效的tokenD:返回tokenE:使用token访问资源

OAuth 2.0授权4大模式

授权码模式:完整、严密,第三方认证和授权的最主流实现

A:APP请求微信登录B:用户信息验证C:返回只能使用一次的授权码D:APP把授权码发给后台服务,服务请求微信登录请求一个长期有效的tokenE:返回长期有效的token

token只有APP的后台服务和微信的后台才有,二者之间使用token通信,保证数据不易泄露到后台黑客

简化模式:令牌用户可见,移动端的常用实现手段

A:APP请求微信登录B:用户信息验证C:直接返回一个长期有效的token

密码模式:用户名密码都返回

A:用户把用户名 + 密码发送给APPB:APP可以直接用账号 + 密码访问微信后台

客户端模式:后台内容应用之间进行访问

微信登录会为APP分配一个内部的特定用户名和密码,APP用这个账号 + 密码和微信沟通,微信返回一个token,APP可以用这个token做很多部门自身的事情

合同到期后的续约机制

通常拿到Access token时还会拿到一个Refresh token,可以用来延长token的有效期

F:token已过期G:使用Refresh token和微信登录沟通,尝试延长tokenH:重新返回一个新的token

OAuth2.0第三方授权实战

oauth-client

表示王者荣耀端

pom文件:

xmlns:xsi="http://w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

4.0.0

org.springframework.boot

spring-boot-starter-parent

2.4.0

org.example

oauth-client

1.0-SNAPSHOT

Demo project for Spring Boot

8

8

2020.0.0-M5

org.springframework.boot

spring-boot-starter-web

org.springframework.cloud

spring-cloud-starter-oauth2

org.springframework.cloud

spring-cloud-starter-security

org.springframework.boot

spring-boot-starter-test

test

org.springframework.cloud

spring-cloud-dependencies

${spring-cloud.version}

pom

import

org.springframework.boot

spring-boot-maven-plugin

spring-milestones

Spring Milestones

https://repo.spring.io/milestone

xmlns:xsi="http://w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

4.0.0

org.springframework.boot

spring-boot-starter-parent

2.4.0

org.example

oauth-client

1.0-SNAPSHOT

Demo project for Spring Boot

8

8

2020.0.0-M5

org.springframework.boot

spring-boot-starter-web

org.springframework.cloud

spring-cloud-starter-oauth2

org.springframework.cloud

spring-cloud-starter-security

org.springframework.boot

spring-boot-starter-test

test

org.springframework.cloud

spring-cloud-dependencies

${spring-cloud.version}

pom

import

org.springframework.boot

spring-boot-maven-plugin

spring-milestones

Spring Milestones

https://repo.spring.io/milestone

SpringBoot的经典启动类:

package com.wjw.oauthclient;

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication

public class OauthClientApplication {

public static void main(String[] args) {

SpringApplication.run(OauthClientApplication.class, args);

}

}

创建OAuth2的配置类:

package com.wjw.oauthclient.config;

import org.springframework.boot.autoconfigure.security.oauth2.client.EnableOAuth2Sso;

import org.springframework.context.annotation.Configuration;

import org.springframework.security.config.annotation.web.builders.HttpSecurity;

import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;

//激活OAuth2 SSO客户端

@Configuration

@EnableOAuth2Sso

public class SecurityConfig extends WebSecurityConfigurerAdapter {

@Override

protected void configure(HttpSecurity http) throws Exception {

http.authorizeRequests()

.anyRequest()

.authenticated()

.and()

.csrf()

.disable();

}

}

配置文件application.yaml:

security.oauth2.client.client-secret=my_client_secret

security.oauth2.client.client-id=my_client_id

security.oauth2.client.user-authorization-uri=http://localhost:9090/oauth/authorize

security.oauth2.client.access-token-uri=http://localhost:9090/oauth/token

security.oauth2.resource.user-info-uri=http://localhost:9090/user

server.port=8080

server.servlet.session.cookie.name=ut

定义用户id为my_client_id,密码为my_client_secret定义“微信登录服务”为:http://localhost:9090/oauth/authorize请求长期有效token的地址为:http://localhost:9090/oauth/token拿到token后请求用户信息的地址为:http://localhost:9090/user

oauth-server

表示微信客户端

pom文件:

xsi:schemaLocation="http://maven.apache.org/POM/4.0.0http:// https://maven.apache.org/xsd/maven-4.0.0.xsd">

4.0.0

org.springframework.boot

spring-boot-starter-parent

2.4.0

com.example

oauth-server

0.0.1-SNAPSHOT

oauth-server

Demo project for Spring Boot

1.8

2020.0.0-M5

org.springframework.boot

spring-boot-starter-web

org.springframework.cloud

spring-cloud-starter-oauth2

org.springframework.cloud

spring-cloud-starter-security

org.springframework.boot

spring-boot-starter-test

test

org.springframework.cloud

spring-cloud-dependencies

${spring-cloud.version}

pom

import

org.springframework.boot

spring-boot-maven-plugin

spring-milestones

Spring Milestones

https://repo.spring.io/milestone

xsi:schemaLocation="http://maven.apache.org/POM/4.0.0http:// https://maven.apache.org/xsd/maven-4.0.0.xsd">

4.0.0

org.springframework.boot

spring-boot-starter-parent

2.4.0

com.example

oauth-server

0.0.1-SNAPSHOT

oauth-server

Demo project for Spring Boot

1.8

2020.0.0-M5

org.springframework.boot

spring-boot-starter-web

org.springframework.cloud

spring-cloud-starter-oauth2

org.springframework.cloud

spring-cloud-starter-security

org.springframework.boot

spring-boot-starter-test

test

org.springframework.cloud

spring-cloud-dependencies

${spring-cloud.version}

pom

import

org.springframework.boot

spring-boot-maven-plugin

spring-milestones

Spring Milestones

https://repo.spring.io/milestone

创建SpringBoot启动类:

package com.wjw.oauthserver;

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

import org.springframework.security.oauth2.config.annotation.web.configuration.EnableResourceServer;

@SpringBootApplication

@EnableResourceServer

public class OauthServerApplication {

public static void main(String[] args) {

SpringApplication.run(OauthServerApplication.class, args);

}

}

创建controller:

提供一个API接口,模拟资源服务器

package com.wjw.oauthserver.controller;

import org.springframework.web.bind.annotation.GetMapping;

import org.springframework.web.bind.annotation.RestController;

import java.security.Principal;

@RestController

public class UserController {

@GetMapping("/user")

public Principal getCurrentUser(Principal principal) {

return principal;

}

}

创建oauth2的关键配置类:

package com.wjw.oauthserver.config;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.context.annotation.Configuration;

import org.springframework.security.crypto.password.PasswordEncoder;

import org.springframework.security.oauth2.config.annotation.configurers.ClientDetailsServiceConfigurer;

import org.springframework.security.oauth2.config.annotation.web.configuration.AuthorizationServerConfigurerAdapter;

import org.springframework.security.oauth2.config.annotation.web.configuration.EnableAuthorizationServer;

@Configuration

@EnableAuthorizationServer

public class AuthorizationServerConfig extends AuthorizationServerConfigurerAdapter {

@Autowired

PasswordEncoder passwordEncoder;

@Override

public void configure(ClientDetailsServiceConfigurer clients) throws Exception {

clients.inMemory() // 在内存里

.withClient("my_client_id")

.secret(passwordEncoder.encode("my_client_secret")) // 加密密码

.autoApprove(true) // 允许所有子类用户登录

.redirectUris("http://localhost:8080/login") // 反跳会登录页面

.scopes("all")

.accessTokenValiditySeconds(3600)

.authorizedGrantTypes("authorization_code"); // 4大模式里的授权码模式

}

}

现在需要提供一个登录页面让用户输入用户名和密码,并设置一个管理员账户:

package com.wjw.oauthserver.config;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

import org.springframework.core.annotation.Order;

import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;

import org.springframework.security.config.annotation.web.builders.HttpSecurity;

import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;

import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;

import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;

import org.springframework.security.crypto.password.PasswordEncoder;

@Configuration

@EnableWebSecurity

@Order(1)

public class SecurityConfig extends WebSecurityConfigurerAdapter {

@Bean

PasswordEncoder passwordEncoder() {

return new BCryptPasswordEncoder();

}

@Override

protected void configure(HttpSecurity http) throws Exception {

http.requestMatchers()

.antMatchers("/login")

.antMatchers("/oauth/authorize")

.and()

.authorizeRequests().anyRequest().authenticated()

.and()

.formLogin()

.permitAll()

.and()

.csrf().disable();

}

@Override

protected void configure(AuthenticationManagerBuilder auth) throws Exception {

auth.inMemoryAuthentication()

.withUser("wjw")

.password(passwordEncoder().encode("123456"))

.roles("admin");

}

}

配置文件application.yaml:

server.port=9090

分别启动oauth-server和oauth-client进行测试:访问localhost:8080/hello

访问hello时会重定向到login

访问登录时又会重定向到微信登录:

之后又会重定向到:

输入账户名+密码:

继续看控制台:登录成功后还是会被重定向

此时再访问就会有授权码了(只能用一次):

此时浏览器拿着授权码才去真正请求王者荣耀的hello接口(浏览器自动使用授权码交换token,对用户透明):

王者荣耀使用授权码请求微信得到一个token和用户信息并返回给浏览器,浏览器再使用这个token调王者荣耀的hello接口拿用户信息:


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