/*
  * Copyright (C), 2018-2021
  * Project: starter
  * FileName: OAuthLogin
  * Author:   Louis
  * Date:     2021/3/30 22:09
  */
 package com.fr.plugin.idnf.request;

 import com.fanruan.api.decision.login.LoginKit;
 import com.fanruan.api.decision.user.UserKit;
 import com.fanruan.api.i18n.I18nKit;
 import com.fanruan.api.log.LogKit;
 import com.fanruan.api.net.NetworkKit;
 import com.fanruan.api.util.StringKit;
 import com.fr.decision.fun.impl.AbstractGlobalRequestFilterProvider;
 import com.fr.decision.webservice.utils.DecisionServiceConstants;
 import com.fr.decision.webservice.v10.login.LoginService;
 import com.fr.plugin.context.PluginContexts;
 import com.fr.plugin.idnf.config.IdnfConfig;
 import com.fr.stable.fun.Authorize;

 import javax.servlet.FilterChain;
 import javax.servlet.FilterConfig;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;

 import static com.fr.plugin.idnf.config.IdnfConfig.PLUGIN_ID;
 import static com.fr.plugin.idnf.service.AuthController.AUTH_PATH;

 /**
  * <Function Description><br>
  * <OAuthLogin>
  *
  * @author fr.open
  * @since 1.0.0
  */
 @Authorize(callSignKey = PLUGIN_ID)
 public class OAuthLogin extends AbstractGlobalRequestFilterProvider {
     private IdnfConfig config;

     /**
      * 过滤器名称
      *
      * @return
      */
     @Override
     public String filterName() {
         return "idnfFilter";
     }

     /**
      * 过滤规则
      *
      * @return
      */
     @Override
     public String[] urlPatterns() {
         return new String[]{"/decision", "/decision/view/form", "/decision/view/report", "/decision/v10/entry/access/*", "/decision/v5/design/report/*", AUTH_PATH};
     }

     /**
      * 过滤器初始化
      *
      * @param filterConfig
      */
     @Override
     public void init(FilterConfig filterConfig) {
         this.config = IdnfConfig.getInstance();
         super.init(filterConfig);
     }

     /**
      * 过滤器处理
      *
      * @param request
      * @param response
      * @param filterChain
      */
     @Override
     public void doFilter(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) {
         try {
             operation(request, response);
             filterChain.doFilter(request, response);
         } catch (Exception e) {
             LogKit.error(e.getMessage(), e);
         }
     }

     /**
      * 用户验证登陆操作
      *
      * @param req
      * @param res
      * @throws Exception
      */
     private void operation(HttpServletRequest req, HttpServletResponse res) throws Exception {
         // 已登录
         if (LoginService.getInstance().isLogged(req)) {
             return;
         }
         String code = NetworkKit.getHTTPRequestParameter(req, this.config.getKeyCode());
         LogKit.info("idnf-OAuthLogin-operation-code:{}", code);
         if (StringKit.isBlank(code)) {
             return;
         }
         String username = code;
         if (StringKit.isEmpty(username) || !UserKit.existUsername(username)) {
             return;
         }
         if (!PluginContexts.currentContext().isAvailable()) {
             LogKit.error(I18nKit.getLocText("Plugin-idnf_Licence_Expired"));
             return;
         }
         String tokenFR = LoginKit.login(req, res, username);
         req.setAttribute(DecisionServiceConstants.FINE_AUTH_TOKEN_NAME, tokenFR);
     }
 }