个性化Token 目的

• 默认通过调用 /oauth/token 返回的报文格式包含以下参数

{"access_token": "e6669cdf-b6cd-43fe-af5c-f91a65041382","token_type": "bearer","refresh_token": "da91294d-446c-4a89-bdcf-88aee15a75e8","expires_in": 43199, "scope": "server"
}

并没包含用户的业务信息比如用户信息、租户信息等。

• 扩展生成包含业务信息（如下）,避免系统多次调用，直接可以通过认证接口获取到用户信息等，大大提高系统性能

{"access_token":"a6f3b6d6-93e6-4eb8-a97d-3ae72240a7b0","token_type":"bearer","refresh_token":"710ab162-a482-41cd-8bad-26456af38e4f","expires_in":42396,"scope":"server","tenant_id":1,"license":"made by pigx","dept_id":1,"user_id":1,"username":"admin"
}

密码模式生成Token 源码解析

​ 主页参考红框部分

• ResourceOwnerPasswordTokenGranter （密码模式）根据用户的请求信息，进行认证得到当前用户上下文信息

  protected OAuth2Authentication getOAuth2Authentication(ClientDetails client, TokenRequest tokenRequest) {Map<String, String> parameters = new LinkedHashMap<String, String>(tokenRequest.getRequestParameters());String username = parameters.get("username");String password = parameters.get("password");// Protect from downstream leaks of passwordparameters.remove("password");Authentication userAuth = new UsernamePasswordAuthenticationToken(username, password);((AbstractAuthenticationToken) userAuth).setDetails(parameters);userAuth = authenticationManager.authenticate(userAuth);OAuth2Request storedOAuth2Request =  getRequestFactory().createOAuth2Request(client, tokenRequest);        return new OAuth2Authentication(storedOAuth2Request, userAuth);
  }

• 然后调用AbstractTokenGranter.getAccessToken() 获取OAuth2AccessToken

  protected OAuth2AccessToken getAccessToken(ClientDetails client, TokenRequest tokenRequest) {return tokenServices.createAccessToken(getOAuth2Authentication(client, tokenRequest));
  }

• 默认使用DefaultTokenServices来获取token

  public OAuth2AccessToken createAccessToken(OAuth2Authentication authentication) throws AuthenticationException {... 一系列判断 ，合法性、是否过期等判断    OAuth2AccessToken accessToken = createAccessToken(authentication, refreshToken);tokenStore.storeAccessToken(accessToken, authentication);// In case it was modifiedrefreshToken = accessToken.getRefreshToken();if (refreshToken != null) {tokenStore.storeRefreshToken(refreshToken, authentication);}return accessToken;
  }
  

• createAccessToken 核心逻辑

  // 默认刷新token 的有效期
  private int refreshTokenValiditySeconds = 60 * 60 * 24 * 30; // default 30 days.
  // 默认token 的有效期
  private int accessTokenValiditySeconds = 60 * 60 * 12; // default 12 hours.private OAuth2AccessToken createAccessToken(OAuth2Authentication authentication, OAuth2RefreshToken refreshToken) {DefaultOAuth2AccessToken token = new DefaultOAuth2AccessToken(uuid);token.setExpiration(Date)token.setRefreshToken(refreshToken);token.setScope(authentication.getOAuth2Request().getScope());return accessTokenEnhancer != null ? accessTokenEnhancer.enhance(token, authentication) : token;
  }

  如上代码，在拼装好token对象后会调用认证服务器配置TokenEnhancer( 增强器) 来对默认的token进行增强。

• TokenEnhancer.enhance 通过上下文中的用户信息来个性化Token

  public OAuth2AccessToken enhance(OAuth2AccessToken accessToken, OAuth2Authentication authentication) {final Map<String, Object> additionalInfo = new HashMap<>(8);PigxUser pigxUser = (PigxUser) authentication.getUserAuthentication().getPrincipal();additionalInfo.put("user_id", pigxUser.getId());additionalInfo.put("username", pigxUser.getUsername());additionalInfo.put("dept_id", pigxUser.getDeptId());additionalInfo.put("tenant_id", pigxUser.getTenantId());additionalInfo.put("license", SecurityConstants.PIGX_LICENSE);((DefaultOAuth2AccessToken) accessToken).setAdditionalInformation(additionalInfo);return accessToken;
  }

基于pig 看下最终的实现效果

Pig 基于Spring Cloud、oAuth2.0开发基于Vue前后分离的开发平台，支持账号、短信、SSO等多种登录，提供配套视频开发教程。
https://gitee.com/log4j/pig