参考:https://github.com/spring-guides/tut-spring-security-and-angular-js/blob/master/oauth2-vanilla/README.adoc
1.浏览器向UI服务器点击触发要求安全认证
2.跳转到授权服务器获取授权许可码
3.从授权服务器带授权许可码跳回来
4.UI服务器向授权服务器获取AccessToken
5.返回AccessToken到UI服务器
6.发出/resource请求到UI服务器
7.UI服务器将/resource请求转发到Resource服务器
8.Resource服务器要求安全验证,于是直接从授权服务器获取认证授权信息进行判断后(最后会响应给UI服务器,UI服务器再响应给浏览中器)
一.先创建OAuth2授权服务器
1.使用spring Initializrt生成初始项目,选使用spring boot 1.3.3生成maven项目,根据需要填写group,artifact,依赖选Web和Security两块,点生成按钮即可.
2.加入OAuth2依赖到pom.xml
<dependency> <groupId>org.springframework.security.oauth</groupId> <artifactId>spring-security-oauth2</artifactId> </dependency>
修改主类(这里同时也作为资源服务器)
@SpringBootApplication @RestController @EnableAuthorizationServer @EnableResourceServer public class AuthserverApplication { @RequestMapping("/user") public Principal user(Principal user) { return user; } public static void main(String[] args) { SpringApplication.run(AuthserverApplication.class, args); } }
同时修改servlet容器的port,contextPath,注册一个测试用户与客户端,加入配置:application.properties
server.port: 9999 server.contextPath: /uaa security.user.password: password security.sessions: if-required security.oauth2.client.clientId: acme security.oauth2.client.clientSecret: acmesecret security.oauth2.client.authorized-grant-types: authorization_code,refresh_token,password security.oauth2.client.scope: openid
基于spring boot的security的session创建策略默认是STATELESS,至于几个选项意义,可看
org.springframework.security.config.http.SessionCreationPolicy
启动授权服务器后,可测试了:
a.打开浏览器输入地址
http://localhost:9999/uaa/oauth/authorize?response_type=code&client_id=acme&redirect_uri=http://example.com
发出请求,然后根据以上配置,输入用户名/密码,点同意,获取返回的授权许可码
b.在Linux的bash或mac的terminal输入
[root@dev ~]#curl acme:acmesecret@192.168.1.115:9999/uaa/oauth/token \ -d grant_type=authorization_code -d client_id=acme \ -d redirect_uri=http://example.com -d code=fjRdsL
回车获取access token,其中fjRdsL替换上步获取的授权许可码.返回结果类似如下:
{ "access_token": "8eded27d-b849-4473-8b2d-49ae49e17943", "token_type": "bearer", "refresh_token": "5e9af75c-c442-433f-81ba-996eb2c00f53", "expires_in": 43199, "scope": "openid" }
从返回结果复制access_token,继续:
[root@dev ~]# TOKEN=8eded27d-b849-4473-8b2d-49ae49e17943 [root@dev ~]# curl -H “Authorization: Bearer $TOKEN” 192.168.1.115:9999/uaa/user
其中上面的8eded27d-b849-4473-8b2d-49ae49e17943是access_token,根据实际情况替换,第二个命令返回结果类似如下:
{ "details": { "remoteAddress": "192.168.1.194", "sessionId": null, "tokenValue": "8eded27d-b849-4473-8b2d-49ae49e17943", "tokenType": "Bearer", "decodedDetails": null }, "authorities": [ { "authority": "ROLE_USER" } ], "authenticated": true, "userAuthentication": { "details": { "remoteAddress": "0:0:0:0:0:0:0:1", "sessionId": "3943F6861E0FE31C29568542730342F6" }, "authorities": [ { "authority": "ROLE_USER" } ], "authenticated": true, "principal": { "password": null, "username": "user", "authorities": [ { "authority": "ROLE_USER" } ], "accountNonExpired": true, "accountNonLocked": true, "credentialsNonExpired": true, "enabled": true }, "credentials": null, "name": "user" }, "oauth2Request": { "clientId": "acme", "scope": [ "openid" ], "requestParameters": { "response_type": "code", "redirect_uri": "http://example.com", "code": "QzbdLe", "grant_type": "authorization_code", "client_id": "acme" }, "resourceIds": [], "authorities": [ { "authority": "ROLE_USER" } ], "approved": true, "refresh": false, "redirectUri": "http://example.com", "responseTypes": [ "code" ], "extensions": {}, "grantType": "authorization_code", "refreshTokenRequest": null }, "credentials": "", "principal": { "password": null, "username": "user", "authorities": [ { "authority": "ROLE_USER" } ], "accountNonExpired": true, "accountNonLocked": true, "credentialsNonExpired": true, "enabled": true }, "clientOnly": false, "name": "user" }
从结果来看,使用access token访问资源一切正常,说明授权服务器没问题.
二.再看分离的资源服务器(改动也不少)
不再使用Spring Session从Redis抽取认证授权信息,而是使用ResourceServerTokenServices向授权服务器发送请求获取认证授权信息.
因些没用到Spring Session时可移除,同时application.properties
配置
security.oauth2.resource.userInfoUri
或
security.oauth2.resource.tokenInfoUri
中的一个,
主类修改如下:
@SpringBootApplication @RestController @EnableResourceServer public class ResourceApplication { @RequestMapping("/") public Message home() { return new Message("Hello World"); } public static void main(String[] args) { SpringApplication.run(ResourceApplication.class, args); } }
最后运行主类的main方法,开始测试(授权服务器前面启动了,access_token也得到了),于是在使用curl命令:
[root@dev ~]# curl -H “Authorization: Bearer $TOKEN” 192.168.1.115:9000
返回结果类似如下:
{ "id": "03af8be3-2fc3-4d75-acf7-c484d9cf32b1", "content": "Hello World" }
可借鉴的经验,我在windows上开发,启动资源服务器,然后资源服务器有配置
server.address: 127.0.0.1
,这里限制容器只能是本机访问,
如果使用局域网IP是不可以访问的,比如你在别人的机器或在一台虚拟的linux上使用curl都是不是访问的,注释这行配置,这限制就解除.
跟踪下获取认证授权的信息过程:
1.userInfoRestTemplate Bean的声明在
org.springframework.boot.autoconfigure.security.oauth2.resource.ResourceServerTokenServicesConfiguration.
UserInfoRestTemplateConfiguration#userInfoRestTemplate
2.使用前面配置的userInfoUri和上面的userInfoRestTemplate Bean在org.springframework.boot.autoconfigure.security.oauth2.resource.ResourceServerTokenServicesConfiguration.
RemoteTokenServicesConfiguration.
UserInfoTokenServicesConfiguration#userInfoTokenServices
创建UserInfoTokenServices Bean.
3.在org.springframework.security.oauth2.config.annotation.web.configurers.ResourceServerSecurityConfigurer#configure添加了org.springframework.security.oauth2.provider.authentication.OAuth2AuthenticationProcessingFilter
4.当使用curl -H “Authorization: Bearer $TOKEN” 192.168.1.115:9000发出请求时,直到被OAuth2AuthenticationProcessingFilter拦截器处理,
org.springframework.security.oauth2.provider.authentication.OAuth2AuthenticationProcessingFilter
#doFilter{
Authentication authentication = tokenExtractor.extract(request);//抽取Token
Authentication authResult = authenticationManager.authenticate(authentication);//还原解码认证授权信息
}
org.springframework.security.oauth2.provider.authentication.OAuth2AuthenticationManager
#authenticate{
OAuth2Authentication auth = tokenServices.loadAuthentication(token);//这里的tokenServices就是上面的UserInfoTokenServices Bean,就在这里向授权服务器发出请求.
}
三.UI服务器作为SSO的客户端.
1.同样UI服务器不需要Spring Session,认证如我们所期望的,交给授权服务器,所以使用Spring Security OAuth2依赖替换Spring Session和Redis依赖
2.当然UI服务器还是API网关的角色,所以不要移除@EnableZuulProxy
在UI服务器主类加上@EnableOAuth2Sso,这个注解会帮我们完成跳转到授权服务器,当然要些配置application.yml
zuul: routes: resource: path: /resource/** url: http://localhost:9000 user: path: /user/** url: http://localhost:9999/uaa/user
这里将”/user”请求代理到授权服务器
3.继续修改UI主类继承WebSecurityConfigurerAdapter,重写org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter
#configure(org.springframework.security.config.annotation.web.builders.HttpSecurity)
目的是为了修改@EnableOAuth2Sso引起的默认Filter链,默认是org.springframework.boot.autoconfigure.security.oauth2.client.OAuth2SsoDefaultConfiguration
#configure,
这个类上面有@Conditional(NeedsWebSecurityCondition.class)意思应该是,没有WebSecurityConfigurerAdapter才会去执行这个config,
因为继承了这个类,所以此config不再执行.
4.作为oauth2的客户端,application.yml下面这几项是少不了的
security: oauth2: client: accessTokenUri: http://localhost:9999/uaa/oauth/token userAuthorizationUri: http://localhost:9999/uaa/oauth/authorize clientId: acme clientSecret: acmesecret resource: userInfoUri: http://localhost:9999/uaa/user
最后一项,因为也作为资源服务器,所以也加上吧
spring: aop: proxy-target-class: true
spring aop默认一般都是使用jdk生成代理,前提是要有接口,cglib生成代理,目标类不能是final类,这是最基本的条件.
估计是那些restTemplate没有实现接口,所以不得不在这里使用cglib生成代理.
5.其它的前端微小改变,这里不赘述.把授权服务器,分离的资源服务器和这个UI服务器都启动.准备测试:http://localhost:8080/login
a.经过security的拦截链接中的
org.springframework.security.oauth2.client.filter.OAuth2ClientAuthenticationProcessingFilter.doFilter拦截,
触发了attemptAuthentication方法
public OAuth2AccessToken getAccessToken() throws UserRedirectRequiredException { OAuth2AccessToken accessToken = context.getAccessToken(); if (accessToken == null || accessToken.isExpired()) { try { accessToken = acquireAccessToken(context); } catch (UserRedirectRequiredException e) { context.setAccessToken(null); // No point hanging onto it now accessToken = null; String stateKey = e.getStateKey(); if (stateKey != null) { Object stateToPreserve = e.getStateToPreserve(); if (stateToPreserve == null) { stateToPreserve = "NONE"; } context.setPreservedState(stateKey, stateToPreserve); } throw e; } } return accessToken; }
acquireAccessToken(context)去获取token的时候触发抛异常.
在org.springframework.security.oauth2.client.token.grant.code.AuthorizationCodeAccessTokenProvider
#getRedirectForAuthorization处理发送的url,
最后这个UserRedirectRequiredException往上抛,
一直往上抛到org.springframework.security.oauth2.client.filter.OAuth2ClientContextFilter#doFilter
catch (Exception ex) { // Try to extract a SpringSecurityException from the stacktrace Throwable[] causeChain = throwableAnalyzer.determineCauseChain(ex); UserRedirectRequiredException redirect = (UserRedirectRequiredException) throwableAnalyzer .getFirstThrowableOfType( UserRedirectRequiredException.class, causeChain); if (redirect != null) { redirectUser(redirect, request, response); } else { if (ex instanceof ServletException) { throw (ServletException) ex; } if (ex instanceof RuntimeException) { throw (RuntimeException) ex; } throw new NestedServletException("Unhandled exception", ex); } }
终于看到redirectUser(redirect, request, response);进行跳转到授权服务器去了.
授权服务器跳回到UI服务器原来的地址(带回来授权许可码),再次被OAuth2ClientAuthenticationProcessingFilter拦截发送获取accessToken,
经org.springframework.security.oauth2.client.token.OAuth2AccessTokenSupport
#retrieveToken提交POST请求,获取到返回原来发请求处得到OAuth2AccessToken对象.
在org.springframework.security.oauth2.client.OAuth2RestTemplate#acquireAccessToken使用oauth2Context.setAccessToken(accessToken);
对token进行保存.有了accessToken,就可以从授权服务器获取用户信息了.
最后,当用户点logout的时候,授权服务器根本没有退出(销毁认证授权信息)
http://blog.csdn.net/xiejx618/article/details/51039653