spring-security 里自带了oauth2，正好YIIU里也用到了spring-security做权限部分，那为何不直接集成上第三方登录呢？
然后我开始了折腾
注意：本篇只折腾了spring-security oauth2的客户端部分，spring-security还可以搭建标准的oauth2服务端
引入依赖
<dependency> <groupId>org.springframework.security.oauth</groupId> <artifactId>spring-security-oauth2</artifactId> </dependency>
添加配置
security:
oauth2:
client:
client-id:
client-secret:
accessTokenUri: https://github.com/login/oauth/access_token
userAuthorizationUri: https://github.com/login/oauth/authorize
clientAuthenticationScheme: form
registered-redirect-uri: ${site.baseUrl}/github_login
use-current-uri: false
resource:
userInfoUri: https://api.github.com/user
sso:
login-path: /github_login
在启动类上加上注解 @EnableOAuth2Sso 一个注解搞定一切
注意：
registered-redirect-uri 一样的@EnableOAuth2Sso 注解后，原来系统里配置的 /login 就默认成了oauth2登录的路由了，这里通过配置 security.oauth2.sso.login-path 更改了保存登录用户
注解 @EnableOAuth2Sso 登录成功了，会把用户信息写入到内存，还是跟session生命周期一样的，session没了，它就没了， 所以既然登录成功了，就要保存到数据库里，而且也可以跟本地用户做关联，登录成功了，直接读取用户的权限信息
保存用户登录信息，只要实现一个接口就可以了，在oauth2授权成功了，它会回调这个接口的，上代码
这个类放哪都可以，只要能被spring管理就行
@Bean
public PrincipalExtractor principalExtractor() {
return map -> {
String login = map.get("login").toString();//github的登录名
GithubUser githubUser = githubUserService.findByLogin(login);
User user;
if (githubUser == null) {
githubUser = new GithubUser();
githubUser = githubUserService.convert(map, githubUser);
//创建一个本地用户
user = userService.findByUsername(login);
if (user == null) {
user = new User();
user.setUsername(login);
} else {
user.setUsername(login + "_" + githubUser.getGithubId());
}
user.setEmail(githubUser.getEmail());
user.setBio(githubUser.getBio());
user.setUrl(githubUser.getHtml_url());
user.setPassword(new BCryptPasswordEncoder().encode(StrUtil.randomString(16)));
user.setInTime(new Date());
user.setBlock(false);
user.setToken(UUID.randomUUID().toString());
user.setAvatar(githubUser.getAvatar_url());
user.setAttempts(0);
user.setScore(2000);// first register score 2000
user.setSpaceSize(siteConfig.getUserUploadSpaceSize());
user.setGithubUser(githubUser);
// set user's role
Role role = roleService.findById(3); // normal user
Set roles = new HashSet();
roles.add(role);
user.setRoles(roles);
userService.save(user);
} else {
githubUser = githubUserService.convert(map, githubUser);
user = githubUser.getUser();
githubUserService.save(githubUser);
}
//加载用户的权限信息
return yiiuUserDetailService.loadUserByUsername(user.getUsername());
};
}
上面 yiiuUserDetailService.loadUserByUsername(user.getUsername()) 这段代码见下面，就是spring-security的加载用户权限代码
@Service
public class YiiuUserDetailService implements UserDetailsService {
private Logger log = Logger.getLogger(YiiuUserDetailService.class);
@Autowired
private UserService userService;
@Autowired
private PermissionService permissionService;
public UserDetails loadUserByUsername(String username) {
User user = userService.findByUsername(username);
if (user != null) {
List<Permission> permissions = permissionService.findByAdminUserId(user.getId());
List<GrantedAuthority> grantedAuthorities = new ArrayList<>();
for (Permission permission : permissions) {
GrantedAuthority grantedAuthority = new SimpleGrantedAuthority(permission.getName());
grantedAuthorities.add(grantedAuthority);
}
return new org.springframework.security.core.userdetails.User(user.getUsername(), user.getPassword(),
true, true, true, !user.isBlock(), grantedAuthorities);
} else {
log.info("用户" + username + " 不存在");
throw new UsernameNotFoundException("用户名或密码不正确");
}
}
}
参考
代码详见：https://github.com/yiiu-co/yiiu
