Spring Cloud Security OAuth2 实现分布式系统授权

左手的ㄟ右手 2023-03-13 05:19 59阅读 0赞

## 1、架构图： ##

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDU4ODQ5NQ_size_16_color_FFFFFF_t_70][]

1、UAA认证服务负责认证授权。

2、所有请求经过 网关到达微服务

3、网关负责鉴权客户端以及请求转发

4、网关将token解析后传给微服务，微服务进行授权。

## 2、注册中心 ##

所有微服务的请求都经过网关，网关从注册中心读取微服务的地址，将请求转发至微服务。 本节完成注册中心的搭建，注册中心采用Eureka。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDU4ODQ5NQ_size_16_color_FFFFFF_t_70 1][]

新建一个module。

spring:
      application:
        name: distributed-discovery
    
    server:
      port: 53000 #启动端口
    
    eureka:
      server:
        enable-self-preservation: false    #关闭服务器自我保护，客户端心跳检测15分钟内错误达到80%服务会保护，导致别人还认为是好用的服务
        eviction-interval-timer-in-ms: 10000 #清理间隔（单位毫秒，默认是60*1000）5秒将客户端剔除的服务在服务注册列表中剔除#
        shouldUseReadOnlyResponseCache: true #eureka是CAP理论种基于AP策略，为了保证强一致性关闭此切换CP 默认不关闭 false关闭
      client:
        register-with-eureka: false  #false:不作为一个客户端注册到注册中心
        fetch-registry: false      #为true时，可以启动，但报异常：Cannot execute request on any known server
        instance-info-replication-interval-seconds: 10
        serviceUrl:
          defaultZone: http://localhost:${server.port}/eureka/
      instance:
        hostname: ${spring.cloud.client.ip-address}
        prefer-ip-address: true
        instance-id: ${spring.application.name}:${spring.cloud.client.ip-address}:${spring.application.instance_id:${server.port}}

package com.oauth.security;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
    
    /**
     * @ClassName DiscoveryServer
     * @Description 注册中心
     * @Author 
     * @Date 2020/5/11 14:40
     * @Version 1.0
     **/
    @SpringBootApplication
    @EnableEurekaServer
    public class DiscoveryServer {
    
        public static void main(String[] args) {
            SpringApplication.run(DiscoveryServer.class, args);
        }
    }

然后修改order和uaa的pom和配置文件（解注释）：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDU4ODQ5NQ_size_16_color_FFFFFF_t_70 2][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDU4ODQ5NQ_size_16_color_FFFFFF_t_70 3][]

## 3、网关 ##

网关整合 OAuth2.0 有两种思路，一种是认证服务器生成jwt令牌, 所有请求统一在网关层验证，判断权限等操作； 另一种是由各资源服务处理，网关只做请求转发。

我们选用第一种。我们把API网关作为OAuth2.0的资源服务器角色，实现接入客户端权限拦截、令牌解析并转发当 前登录用户信息(jsonToken)给微服务，这样下游微服务就不需要关心令牌格式解析以及OAuth2.0相关机制了。

API网关在认证授权体系里主要负责两件事：

（1）作为OAuth2.0的资源服务器角色，实现接入方权限拦截。

（2）令牌解析并转发当前登录用户信息（明文token）给微服务

微服务拿到明文token(明文token中包含登录用户的身份和权限信息)后也需要做两件事：

（1）用户授权拦截（看当前用户是否有权访问该资源）

（2）将用户信息存储进当前线程上下文（有利于后续业务逻辑随时获取当前用户信息）

<?xml version="1.0" encoding="UTF-8"?>
    <project xmlns="http://maven.apache.org/POM/4.0.0"
             xmlns:xsi="http://www.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">
        <parent>
            <artifactId>OAuth2.0</artifactId>
            <groupId>com.oauth.security</groupId>
            <version>1.0-SNAPSHOT</version>
        </parent>
        <modelVersion>4.0.0</modelVersion>
    
        <artifactId>getway</artifactId>
        <dependencies>
    
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-netflix-ribbon</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-openfeign</artifactId>
            </dependency>
    
            <dependency>
                <groupId>com.netflix.hystrix</groupId>
                <artifactId>hystrix-javanica</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.retry</groupId>
                <artifactId>spring-retry</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-actuator</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-netflix-zuul</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-security</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-oauth2</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.security</groupId>
                <artifactId>spring-security-jwt</artifactId>
            </dependency>
    
            <dependency>
                <groupId>javax.interceptor</groupId>
                <artifactId>javax.interceptor-api</artifactId>
            </dependency>
    
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>fastjson</artifactId>
            </dependency>
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
            </dependency>
    
        </dependencies>
    
    </project>

spring.application.name=gateway-server
    server.port=53010
    spring.main.allow-bean-definition-overriding = true
    
    logging.level.root = info
    logging.level.org.springframework = info
    
    zuul.retryable = true
    zuul.ignoredServices = *
    zuul.add-host-header = true
    zuul.sensitiveHeaders = *
    
    zuul.routes.uaa-service.stripPrefix = false
    zuul.routes.uaa-service.path = /uaa/**
    
    zuul.routes.order-service.stripPrefix = false
    zuul.routes.order-service.path = /order/**
    
    eureka.client.serviceUrl.defaultZone = http://localhost:53000/eureka/
    eureka.instance.preferIpAddress = true
    eureka.instance.instance-id = ${spring.application.name}:${spring.cloud.client.ip-address}:${spring.application.instance_id:${server.port}}
    management.endpoints.web.exposure.include = refresh,health,info,env
    
    feign.hystrix.enabled = true
    feign.compression.request.enabled = true
    feign.compression.request.mime-types[0] = text/xml
    feign.compression.request.mime-types[1] = application/xml
    feign.compression.request.mime-types[2] = application/json
    feign.compression.request.min-request-size = 2048
    feign.compression.response.enabled = true

package com.oauth.security;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
    import org.springframework.cloud.netflix.zuul.EnableZuulProxy;
    
    /**
     * @ClassName GatewayServer
     * @Description 网关
     * @Author
     * @Date 2020/5/11 14:41
     * @Version 1.0
     **/
    @SpringBootApplication
    @EnableZuulProxy
    @EnableDiscoveryClient
    public class GatewayServer {
        public static void main(String[] args) {
            SpringApplication.run(GatewayServer.class, args);
        }
    }

package com.oauth.security.config;
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
    import org.springframework.security.config.annotation.web.builders.HttpSecurity;
    import org.springframework.security.config.http.SessionCreationPolicy;
    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.config.annotation.web.configurers.ResourceServerSecurityConfigurer;
    import org.springframework.security.oauth2.provider.token.TokenStore;
    
    @Configuration
    public class ResouceServerConfig  {
    
        public static final String RESOURCE_ID = "res1";
    
    
        //uaa资源服务配置
        @Configuration
        @EnableResourceServer
        public class UAAServerConfig extends ResourceServerConfigurerAdapter {
            @Autowired
            private TokenStore tokenStore;
    
            @Override
            public void configure(ResourceServerSecurityConfigurer resources){
                resources.tokenStore(tokenStore).resourceId(RESOURCE_ID)
                        .stateless(true);
            }
    
            @Override
            public void configure(HttpSecurity http) throws Exception {
                http.authorizeRequests()
                        .antMatchers("/uaa/**").permitAll();
            }
        }
    
    
        //order资源
        //uaa资源服务配置
        @Configuration
        @EnableResourceServer
        public class OrderServerConfig extends ResourceServerConfigurerAdapter {
            @Autowired
            private TokenStore tokenStore;
    
            @Override
            public void configure(ResourceServerSecurityConfigurer resources){
                resources.tokenStore(tokenStore).resourceId(RESOURCE_ID)
                        .stateless(true);
            }
    
            @Override
            public void configure(HttpSecurity http) throws Exception {
                http
                        .authorizeRequests()
                        .antMatchers("/order/**").access("#oauth2.hasScope('ROLE_API')");
            }
        }
    
    
        //配置其它的资源服务..
    
    
    }

再将TokenConfig复制到config目录下。

上面定义了两个微服务的资源，其中：

UAAServerConfig指定了若请求匹配/uaa/\*\*网关不进行拦截。

OrderServerConfig指定了若请求匹配/order/\*\*，也就是访问统一用户服务，接入客户端需要有scope中包含 read，并且authorities(权限)中需要包含ROLE\_USER。

由于res1这个接入客户端，read包括ROLE\_ADMIN,ROLE\_USER,ROLE\_API三个权限。

package com.oauth.security.config;
    
    import org.springframework.context.annotation.Configuration;
    import org.springframework.security.config.annotation.web.builders.HttpSecurity;
    import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
    
    /**
     * @ClassName WebSecurityConfig
     * @Description
     * @Author
     * @Date 2020/5/11 21:50
     * @Version 1.0
     **/
    @Configuration
    public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
    
        @Override
        protected void configure(HttpSecurity http) throws Exception {
    
            http
                    .authorizeRequests()
                    .antMatchers("/**").permitAll()
                    .and().csrf().disable();
        }
    }

**转发明文****token****给微服务：**

通过Zuul过滤器的方式实现，目的是让下游微服务能够很方便的获取到当前的登录用户信息（明文token）。

**（****1****）实现****Zuul****前置过滤器，完成当前登录用户信息提取，并放入转发微服务的****request****中**

package com.oauth.security.config;
    
    import com.oauth.security.filter.AuthFilter;
    import org.springframework.boot.web.servlet.FilterRegistrationBean;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.core.Ordered;
    import org.springframework.web.cors.CorsConfiguration;
    import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
    import org.springframework.web.filter.CorsFilter;
    /**
     * @ClassName ZuulConfig
     * @Description
     * @Author
     * @Date 2020/5/11 22:21
     * @Version 1.0
     **/
    
    @Configuration
    public class ZuulConfig {
    
        @Bean
        public AuthFilter preFileter() {
            return new AuthFilter();
        }
    
        @Bean
        public FilterRegistrationBean corsFilter() {
            final UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
            final CorsConfiguration config = new CorsConfiguration();
            config.setAllowCredentials(true);
            config.addAllowedOrigin("*");
            config.addAllowedHeader("*");
            config.addAllowedMethod("*");
            config.setMaxAge(18000L);
            source.registerCorsConfiguration("/**", config);
            CorsFilter corsFilter = new CorsFilter(source);
            FilterRegistrationBean bean = new FilterRegistrationBean(corsFilter);
            bean.setOrder(Ordered.HIGHEST_PRECEDENCE);
            return bean;
        }
    }

**（** **2** **）将** **fifilter** **纳入** **spring**  **容器：**

配置 AuthFilter

package com.oauth.security.filter;
    
    import com.alibaba.fastjson.JSON;
    import com.netflix.zuul.ZuulFilter;
    import com.netflix.zuul.context.RequestContext;
    import com.netflix.zuul.exception.ZuulException;
    import com.oauth.security.util.EncryptUtil;
    import org.springframework.security.core.Authentication;
    import org.springframework.security.core.GrantedAuthority;
    import org.springframework.security.core.context.SecurityContextHolder;
    import org.springframework.security.oauth2.provider.OAuth2Authentication;
    import org.springframework.security.oauth2.provider.OAuth2Request;
    import java.util.ArrayList;
    import java.util.HashMap;
    import java.util.List;
    import java.util.Map;
    
    /**
     * @ClassName AuthFilter
     * @Description
     * @Author 戴书博
     * @Date 2020/5/11 22:04
     * @Version 1.0
     **/
    public class AuthFilter extends ZuulFilter {
    
        @Override
        public boolean shouldFilter() {
            return true;
        }
    
        @Override
        public String filterType() {
            return "pre";
        }
    
        @Override
        public int filterOrder() {
            return 0;
        }
    
        @Override
        public Object run() throws ZuulException {
            RequestContext ctx = RequestContext.getCurrentContext();
            //从安全上下文中拿 到用户身份对象
            Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
            if(!(authentication instanceof OAuth2Authentication)){
                return null;
            }
            OAuth2Authentication oAuth2Authentication = (OAuth2Authentication) authentication;
            Authentication userAuthentication = oAuth2Authentication.getUserAuthentication();
            //取出用户身份信息
            String principal = userAuthentication.getName();
    
            //取出用户权限
            List<String> authorities = new ArrayList<>();
            //从userAuthentication取出权限，放在authorities
            userAuthentication.getAuthorities().stream().forEach(c->authorities.add(((GrantedAuthority) c).getAuthority()));
    
            OAuth2Request oAuth2Request = oAuth2Authentication.getOAuth2Request();
            Map<String, String> requestParameters = oAuth2Request.getRequestParameters();
            Map<String,Object> jsonToken = new HashMap<>(requestParameters);
            if(userAuthentication!=null){
                jsonToken.put("principal",principal);
                jsonToken.put("authorities",authorities);
            }
    
            //把身份信息和权限信息放在json中，加入http的header中,转发给微服务
            ctx.addZuulRequestHeader("json-token", EncryptUtil.encodeUTF8StringBase64(JSON.toJSONString(jsonToken)));
    
            return null;
        }
    }

## 4、修改微服务order ##

当微服务收到明文token时，应该怎么鉴权拦截呢？自己实现一个filter？自己解析明文token，自己定义一套资源 访问策略？

能不能适配Spring Security呢，是不是突然想起了前面我们实现的Spring Security基于token认证例子。咱们还拿 统一用户服务作为网关下游微服务，对它进行改造，**增加微服务用户鉴权拦截功能。**

package com.oauth.security.config;
    
    import org.springframework.context.annotation.Configuration;
    import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
    import org.springframework.security.config.annotation.web.builders.HttpSecurity;
    import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
    
    /**
     * @ClassName WebSecurityConfig
     * @Description
     * @Author
     * @Date 2020/5/10 15:16
     * @Version 1.0
     **/
    @Configuration
    @EnableGlobalMethodSecurity(securedEnabled = true, prePostEnabled = true)
    public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
    
    
        //安全拦截机制，由于我们上面对controller做了一个注解，这里面暂时不用具体写拦截，但是这个要有。
        @Override
        protected void configure(HttpSecurity http) throws Exception {
            http.csrf().disable().authorizeRequests()
            .antMatchers("/r/**").authenticated()//所有/r/**的请求必须认证通
            .anyRequest().permitAll()//除了/r/**，其它的请求可以访问
            ;
        }
    }

package com.oauth.security.filter;
    
    import com.alibaba.fastjson.JSON;
    import com.alibaba.fastjson.JSONArray;
    import com.alibaba.fastjson.JSONObject;
    import com.oauth.security.model.UserDTO;
    import com.oauth.security.util.EncryptUtil;
    import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
    import org.springframework.security.core.authority.AuthorityUtils;
    import org.springframework.security.core.context.SecurityContextHolder;
    import org.springframework.security.web.authentication.WebAuthenticationDetails;
    import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
    import org.springframework.stereotype.Component;
    import org.springframework.web.filter.OncePerRequestFilter;
    
    import javax.servlet.FilterChain;
    import javax.servlet.ServletException;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    import java.io.IOException;
    import java.util.List;
    
    /**
     * @ClassName TokenAuthenticationFilter
     * @Description
     * @Author
     * @Date 2020/5/12 8:28
     * @Version 1.0
     **/
    @Component
    public class TokenAuthenticationFilter extends OncePerRequestFilter {
    
    
        @Override
        protected void doFilterInternal(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, FilterChain filterChain) throws ServletException, IOException {
            //获取json
            String token = httpServletRequest.getHeader("json‐token");
            if (token != null) {
                String json = EncryptUtil.decodeUTF8StringBase64(token);
                JSONObject userJson = JSON.parseObject(json);
                //用户身份信息
                UserDTO userDTO = new UserDTO();
                userDTO.setUsername( userJson.getString("principal"));
                //用户权限
                JSONArray authoritiesArray = userJson.getJSONArray("authorities");
                String[] authorities = authoritiesArray.toArray(new String[authoritiesArray.size()]);
                //将用户信息和权限填充到用户token对象中
                UsernamePasswordAuthenticationToken authenticationToken =
                        new UsernamePasswordAuthenticationToken(userDTO,null, AuthorityUtils.createAuthorityList(authorities));
                authenticationToken.setDetails(new WebAuthenticationDetailsSource().buildDetails(httpServletRequest));
                //将这个对象填充到安全上下文。
                SecurityContextHolder.getContext().setAuthentication(authenticationToken);
            }
            filterChain.doFilter(httpServletRequest,httpServletResponse);
        }
    }

经过上边的过虑 器，资源 服务中就可以方便到的获取用户的身份信息：

UserDTO user = (UserDTO) SecurityContextHolder.getContext().getAuthentication().getPrincipal();

还是三个步骤： 1.解析token 2.新建并填充authentication 3.将authentication保存进安全上下文 剩下的事儿就交给Spring Security好了。

增加资源：

@RestController
    public class OrderController {
    
        @GetMapping(value = "/r1")
        @PreAuthorize("hasAnyAuthority('p1')")
        public String r1() {
            UserDTO user = (UserDTO) SecurityContextHolder.getContext().getAuthentication().getPrincipal();
            return user.getUsername() + "访问资源1";
        }
    
        @GetMapping(value = "/r2")
        @PreAuthorize("hasAnyAuthority('p2')")
        public String r2() {
            UserDTO user = (UserDTO) SecurityContextHolder.getContext().getAuthentication().getPrincipal();
            return user.getUsername() + "访问资源2";
        }
    }

## 5、集成测试 ##

启动四个服务。

### （1）密码模式 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDU4ODQ5NQ_size_16_color_FFFFFF_t_70 4][]

查看对应的权限：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDU4ODQ5NQ_size_16_color_FFFFFF_t_70 5][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDU4ODQ5NQ_size_16_color_FFFFFF_t_70 6][]

可以访问资源了。

### （2）授权码 ###

授权的时候需要注意，也要将过资源的scope添加到网关的scope。

http://localhost:53010/uaa/oauth/authorize?client_id=c1&response_type=code&scope=ROLE_ADMIN&redirect_uri=http://www.baidu.com

![20200512220908384.png][]

localhost:53020/uaa/oauth/token?client_id=c1&client_secret=secret&grant_type=authorization_code&code=N9PW7w&redirect_uri=http://www.baidu.com

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDU4ODQ5NQ_size_16_color_FFFFFF_t_70 7][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDU4ODQ5NQ_size_16_color_FFFFFF_t_70 8][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDU4ODQ5NQ_size_16_color_FFFFFF_t_70 9][]

github：git@github.com:Zesystem/OAuth2.0.git

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