防护：添加人数过多防护措施

web-server/app/middleware/proxy.ts

@@ -0,0 +1,4 @@
+import proxy from 'egg-http-proxy-middleware';
+
+module.exports = proxy;
+

web-server/app/service/Auth.ts

@@ -289,6 +289,10 @@ export default class Auth extends Service {
     public async checkRole(serverId: number) {
         const ctx = this.ctx;
         const { uid } = ctx;
+
+        let canLogin = await this.ctx.service.utils.validateCanLogin();
+        if(!canLogin) return this.ctx.service.utils.resResult(STATUS.ONLINE_USER_MAX);
+
         const role = await RoleModel.findByUid(uid, serverId);
         if (role) {
             if(role.blockType == BLOCK_TYPE.BLOCK) {

web-server/app/service/Utils.ts

@@ -2,6 +2,9 @@ import { Service } from 'egg';
 import { resResult as pubResult } from '../pubUtils/util';
 import { unlockFigure } from 'app/pubUtils/itemUtils';
 import { RoleType } from '@db/Role';
+import { gameData } from 'app/pubUtils/data';
+import { RedisClient } from 'redis';
+import { REDIS_KEY } from '@consts';
 const csprng = require('csprng');
 /**
  * Utils Service
@@ -59,4 +62,21 @@ export default class Utils extends Service {
       log.error(`${message}`);
     }
   }
+
+  // 检测是否可以登录
+  public async validateCanLogin() {
+    console.log('********* serverConst', gameData.serverConst)
+    if(gameData.serverConst.CLOSE_LOGIN == 1) return false;
+    if(gameData.serverConst.CLOSE_LOGIN_WHEN_ONLINE_MAX) {
+
+      let redisClient: RedisClient = this.ctx.app.context.redisClient;
+      let count = await redisClient.hlenAsync(REDIS_KEY.ONLINE_USERS);
+
+    console.log('********* count', count)
+      if(count >= gameData.serverConst.MAX_ONLINE_USER_COUNT) {
+        return false
+      }
+    }
+    return true;
+  }
 }