Spring Security Oauth2

Security Oauth2.0入门

1、理解Oauth2的授权码认证流程及密码认证的流程。

2、理解spring Security Oauth2的工作流程。

3、掌握资源服务集成spring Security框架完成Oauth2认证的流程。

Oauth2授权模式

1.授权码模式（Authorization Code）

2.隐式授权模式（Implicit）

3.密码模式（Resource Owner Password Credentials）

4.客户端模式（Client Credentials）

授权码授权实现

上边例举的课工场网站使用QQ认证的过程就是授权码模式，流程如下：

1、客户端请求第三方授权

2、用户(资源拥有者)同意给客户端授权

3、客户端获取到授权码，请求认证服务器申请 令牌

4、认证服务器向客户端响应令牌

5、客户端请求资源服务器的资源，资源服务校验令牌合法性，完成授权

6、资源服务器返回受保护资源

申请授权码

请求认证服务获取授权码：

Get请求：

http://localhost:7004/oauth/authorize?client_id=xzzb&response_type=code&scop=app&redirect_uri=http://localhost

参数列表如下：

client_id：客户端id，和授权配置类中设置的客户端id一致。

response_type：授权码模式固定为code

scop：客户端范围，和授权配置类中设置的scop一致。

redirect_uri：跳转uri，当授权码申请成功后会跳转到此地址，并在后边带上code参数（授权码）

首先跳转到登录页面：

(2)申请令牌

拿到授权码后，申请令牌。 Post请求：http://localhost:7004/oauth/token 参数如下：

grant_type：授权类型，填写authorization_code，表示授权码模式

code：授权码，就是刚刚获取的授权码，注意：授权码只使用一次就无效了，需要重新申请。

redirect_uri：申请授权码时的跳转url，一定和申请授权码时用的redirect_uri一致。

令牌校验

Spring Security Oauth2提供校验令牌的端点，如下：

Get: http://localhost:7004/oauth/check_token?token= [access_token]

刷新令牌

刷新令牌是当令牌快过期时重新生成一个令牌，它于授权码授权和密码授权生成令牌不同，刷新令牌不需要授权码 也不需要账号和密码，只需要一个刷新令牌、客户端id和客户端密码。

测试如下： Post：http://localhost:7004/oauth/token

参数：

grant_type： 固定为 refresh_token

refresh_token：刷新令牌（注意不是access_token，而是refresh_token）

密码授权实现

(1)认证

密码模式（Resource Owner Password Credentials）与授权码模式的区别是申请令牌不再使用授权码，而是直接 通过用户名和密码即可申请令牌。

测试如下：

Post请求：http://localhost:7004/oauth/token

参数：

grant_type：密码模式授权填写password

username：账号

password：密码

并且此链接需要使用 http Basic认证。

引入依赖(很重要)

    org.springframework.boot
    spring-boot-starter-oauth2-resource-server



    org.springframework.security
    spring-security-oauth2-authorization-server
    0.2.0



    org.springframework.security
    spring-security-cas

自定义授权类

package com.zb.oauth.config;
import com.zb.client.TbUserFeignClient;
import com.zb.dto.UserDto;
import com.zb.oauth.util.UserJwt;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.authority.AuthorityUtils;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;

import org.springframework.security.oauth2.provider.ClientDetails;
import org.springframework.security.oauth2.provider.ClientDetailsService;
import org.springframework.stereotype.Service;
import org.springframework.util.ObjectUtils;
import org.springframework.util.StringUtils;

/*****
 * 自定义授权认证类
 */
@Service
public class UserDetailsServiceImpl implements UserDetailsService {

    @Autowired
    ClientDetailsService clientDetailsService;

    @Autowired
    private TbUserFeignClient tbUserFeignClient;

    /****
     * 自定义授权认证
     * @param username
     * @return
     * @throws UsernameNotFoundException
     */
    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        //取出身份，如果身份为空说明没有认证
        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
        //没有认证统一采用httpbasic认证，httpbasic中存储了client_id和client_secret，开始认证client_id和client_secret
        if(authentication==null){
            ClientDetails clientDetails = clientDetailsService.loadClientByClientId(username);
            if(clientDetails!=null){
                //秘钥
                String clientSecret = clientDetails.getClientSecret();
                //静态方式
            //    return new User(username,new BCryptPasswordEncoder().encode(clientSecret), AuthorityUtils.commaSeparatedStringToAuthorityList(""));
                //数据库查找方式
                return new User(username,clientSecret, AuthorityUtils.commaSeparatedStringToAuthorityList(""));
            }
        }

        if (StringUtils.isEmpty(username)) {
            return null;
        }

        UserDto info = tbUserFeignClient.info(username);
        if(ObjectUtils.isEmpty(info)){
          return  null;

        }

        //根据用户名查询用户信息 数据库没有加密状态下加密
     // String pwd = new BCryptPasswordEncoder().encode(info.getPassword());

        String pwd = info.getPassword();


        //创建User对象
        String permissions = "goods_list,seckill_list";


        UserJwt userDetails = new UserJwt(username,pwd,AuthorityUtils.commaSeparatedStringToAuthorityList(permissions));


        //userDetails.setComy(songsi);
        return userDetails;
    }
}

网络安全配置

package com.zb.oauth.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.annotation.Order;
import org.springframework.security.authentication.AuthenticationManager;
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.builders.WebSecurity;
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)
class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    /***
     * 忽略安全拦截的URL
     * @param web
     * @throws Exception
     */
    @Override
    public void configure(WebSecurity web) throws Exception {
        web.ignoring().antMatchers(
                "/my-auth/login/**",
                "/user/logout");
    }

    /***
     * 创建授权管理认证对象
     * @return
     * @throws Exception
     */
    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception {
        AuthenticationManager manager = super.authenticationManagerBean();
        return manager;
    }

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

    /***
     * 采用BCryptPasswordEncoder对密码进行编码
     * @return
     */
    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }

    /****
     *
     * @param http
     * @throws Exception
     */
    @Override
    public void configure(HttpSecurity http) throws Exception {
        http.csrf().disable()
                .httpBasic()        //启用Http基本身份验证
                .and()
                .formLogin()       //启用表单身份验证
                .and()
                .authorizeRequests()    //限制基于Request请求访问
                .anyRequest()
                .authenticated();       //其他请求都需要经过验证

    }
}

用于配置 OAuth 授权服务器的工作方式 

package com.zb.oauth.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.cloud.bootstrap.encrypt.KeyProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
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;
import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerEndpointsConfigurer;
import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerSecurityConfigurer;
import org.springframework.security.oauth2.provider.ClientDetailsService;
import org.springframework.security.oauth2.provider.client.JdbcClientDetailsService;
import org.springframework.security.oauth2.provider.token.DefaultAccessTokenConverter;
import org.springframework.security.oauth2.provider.token.TokenStore;
import org.springframework.security.oauth2.provider.token.store.JwtAccessTokenConverter;
import org.springframework.security.oauth2.provider.token.store.JwtTokenStore;
import org.springframework.security.oauth2.provider.token.store.KeyStoreKeyFactory;

import javax.annotation.Resource;
import javax.sql.DataSource;
import java.security.KeyPair;


@Configuration
@EnableAuthorizationServer
class AuthorizationServerConfig extends AuthorizationServerConfigurerAdapter {
    //数据源，用于从数据库获取数据进行认证操作，测试可以从内存中获取
    @Autowired
    private DataSource dataSource;
    //jwt令牌转换器
    @Autowired
    private JwtAccessTokenConverter jwtAccessTokenConverter;
    //SpringSecurity 用户自定义授权认证类
    @Autowired
    UserDetailsService userDetailsService;
    //授权认证管理器
    @Autowired
    AuthenticationManager authenticationManager;
    //令牌持久化存储接口
    @Autowired
    TokenStore tokenStore;
    @Autowired
    private CustomUserAuthenticationConverter customUserAuthenticationConverter;

    /***
     * 客户端信息配置
     * @param clients
     * @throws Exception
     */
    @Override
    public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
         clients.jdbc(dataSource).clients(this.clientDetails());


//        clients.inMemory()
//                .withClient("changgou")          //客户端id
//                .secret("changgou")                      //秘钥
//                .redirectUris("http://localhost")       //重定向地址
//                .accessTokenValiditySeconds(3600)          //访问令牌有效期
//                .refreshTokenValiditySeconds(3600)         //刷新令牌有效期
//                .authorizedGrantTypes(
//                        "authorization_code",          //根据授权码生成令牌
//                        "client_credentials",          //客户端认证
//                        "refresh_token",                //刷新令牌
//                        "password")                     //密码方式认证
//                .scopes("app");                         //客户端范围，名称自定义，必填
    }

    /***
     * 授权服务器端点配置
     * @param endpoints
     * @throws Exception
     */
    @Override
    public void configure(AuthorizationServerEndpointsConfigurer endpoints) throws Exception {
        endpoints.accessTokenConverter(jwtAccessTokenConverter)
                .authenticationManager(authenticationManager)//认证管理器
                .tokenStore(tokenStore)                       //令牌存储
                .userDetailsService(userDetailsService);     //用户信息service
    }

    /***
     * 授权服务器的安全配置
     * @param oauthServer
     * @throws Exception
     */
    @Override
    public void configure(AuthorizationServerSecurityConfigurer oauthServer) throws Exception {
        oauthServer.allowFormAuthenticationForClients()
                .passwordEncoder(new BCryptPasswordEncoder())
                .tokenKeyAccess("permitAll()")
                .checkTokenAccess("isAuthenticated()");
    }


    //读取密钥的配置
    @Bean("keyProp")
    public KeyProperties keyProperties(){
        return new KeyProperties();
    }

    @Resource(name = "keyProp")
    private KeyProperties keyProperties;

    //客户端配置
    @Bean
    public ClientDetailsService clientDetails() {
        return new JdbcClientDetailsService(dataSource);
    }

    @Bean
    @Autowired
    public TokenStore tokenStore(JwtAccessTokenConverter jwtAccessTokenConverter) {
        return new JwtTokenStore(jwtAccessTokenConverter);
    }

    /****
     * JWT令牌转换器
     * @param customUserAuthenticationConverter
     * @return
     */
    @Bean
    public JwtAccessTokenConverter jwtAccessTokenConverter(CustomUserAuthenticationConverter customUserAuthenticationConverter) {
        JwtAccessTokenConverter converter = new JwtAccessTokenConverter();
        KeyPair keyPair = new KeyStoreKeyFactory(
                keyProperties.getKeyStore().getLocation(),                          //证书路径 changgou.jks
                keyProperties.getKeyStore().getSecret().toCharArray())              //证书秘钥 changgouapp
                .getKeyPair(
                        keyProperties.getKeyStore().getAlias(),                     //证书别名 changgou
                        keyProperties.getKeyStore().getPassword().toCharArray());   //证书密码 changgou
        converter.setKeyPair(keyPair);
        //配置自定义的CustomUserAuthenticationConverter
        DefaultAccessTokenConverter accessTokenConverter = (DefaultAccessTokenConverter) converter.getAccessTokenConverter();
        accessTokenConverter.setUserTokenConverter(customUserAuthenticationConverter);
        return converter;
    }
}

(2)解析令牌

资源服务器授权配置

(1)配置公钥 认证服务生成令牌采用非对称加密算法，认证服务采用私钥加密生成令牌，对外向资源服务提供公钥，资源服务使 用公钥 来校验令牌的合法性。 将公钥拷贝到 public.key文件中，将此文件拷贝到每一个需要的资源服务工程的classpath下

(2)添加依赖

<dependency>

    <groupId>org.springframework.cloudgroupId>

<artifactId>spring-cloud-starter-oauth2artifactId>

dependency>

配置每个系统的Http请求路径安全控制策略以及读取公钥信息识别令牌

package com.zb.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableResourceServer;
import org.springframework.security.oauth2.config.annotation.web.configuration.ResourceServerConfigurerAdapter;
import org.springframework.security.oauth2.provider.token.TokenStore;
import org.springframework.security.oauth2.provider.token.store.JwtAccessTokenConverter;
import org.springframework.security.oauth2.provider.token.store.JwtTokenStore;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.stream.Collectors;

@Configuration
@EnableResourceServer
@EnableGlobalMethodSecurity(prePostEnabled = true, securedEnabled = true)//激活方法上的PreAuthorize注解
public class ResourceServerConfig extends ResourceServerConfigurerAdapter {

    //公钥
    private static final String PUBLIC_KEY = "public.key";

    /***
     * 定义JwtTokenStore
     * @param jwtAccessTokenConverter
     * @return
     */
    @Bean
    public TokenStore tokenStore(JwtAccessTokenConverter jwtAccessTokenConverter) {
        return new JwtTokenStore(jwtAccessTokenConverter);
    }

    /***
     * 定义JJwtAccessTokenConverter
     * @return
     */
    @Bean
    public JwtAccessTokenConverter jwtAccessTokenConverter() {
        JwtAccessTokenConverter converter = new JwtAccessTokenConverter();
        converter.setVerifierKey(getPubKey());
        return converter;
    }
    /**
     * 获取非对称加密公钥 Key
     * @return 公钥 Key
     */
    private String getPubKey() {
        Resource resource = new ClassPathResource(PUBLIC_KEY);
        try {
            InputStreamReader inputStreamReader = new InputStreamReader(resource.getInputStream());
            BufferedReader br = new BufferedReader(inputStreamReader);
            return br.lines().collect(Collectors.joining("\n"));
        } catch (IOException ioe) {
            return null;
        }
    }

    /***
     * Http安全配置，对每个到达系统的http请求链接进行校验
     * @param http
     * @throws Exception
     */
    @Override
    public void configure(HttpSecurity http) throws Exception {
        //所有请求必须认证通过
        http.authorizeRequests()
                //下边的路径放行
                .antMatchers(
                        "/api/user/add",”/api/user/info/*”). //配置地址放行
                permitAll()
                .anyRequest().
                authenticated();    //其他地址需要认证授权
    }
}

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