fix(redis_auth): authed using redis successfully

fixing #67
roman-ojha · Jun 8, 2022 · d536397 · d536397
1 parent a24edd4
commit d536397
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Showing 2 changed files with 69 additions and 32 deletions.
diff --git a/middleware/auth/authUsingRedis.ts b/middleware/auth/authUsingRedis.ts
@@ -1,9 +1,10 @@
 import UserDetail from "../../models/userDetail_model.js";
-import redis, { RedisClientType } from "redis";
+import redis from "redis";
 import { RequestHandler, Request, Response, NextFunction } from "express";
 import jwt from "jsonwebtoken";
 import ExtendJWTPayload from "../../types/jsonwebtoken/extend-jwt-payload.js";
 import ResponseObject from "../../interface/responseObject.js";
+import RedisUserDetail from "../../interface/redisUserDetail.js";
 
 const REDIS_PORT = process.env.REDIS_PORT || 6379;
 let isRedisConnected: boolean = false;
@@ -32,48 +33,84 @@ const authenticate: RequestHandler = async (
 ) => {
   try {
     const token = req.cookies.AuthToken;
+    if (!token) {
+      return res.status(401).send(<ResponseObject>{
+        success: false,
+        msg: "UnAuthorized: no token provided, please login first",
+      });
+    }
     const verifyToken = jwt.verify(
       token,
       process.env.SECRET_KEY!
     ) as ExtendJWTPayload;
-    console.log(isRedisConnected);
-    const userFromRedis = await redisClient.get(verifyToken.id);
-    //   .then((data) => {
-    //     console.log(data);
-    //   })
-    //   .catch((err) => {
-    //     console.log(err);
-    //   });
-    if (userFromRedis === null) {
-      //   next();
-      const getUser = await UserDetail.findOne(
-        {
-          id: verifyToken.id,
-          "tokens.token": token,
-        },
-        // filtering to get only data that is need when page load
-        {
-          userID: 1,
-          name: 1,
-          id: 1,
-          email: 1,
-          _id: 0,
+    if (isRedisConnected) {
+      if (!verifyToken.id) {
+        return res.status(401).send(<ResponseObject>{
+          success: false,
+          msg: "UnAuthorized: no a valid token, please login first",
+        });
+      }
+      const userFromRedis = await redisClient.get(verifyToken.id);
+      if (userFromRedis === null) {
+        const getUser = await UserDetail.findOne(
+          {
+            id: verifyToken.id,
+            "tokens.token": token,
+          },
+          {
+            userID: 1,
+            name: 1,
+            id: 1,
+            email: 1,
+            tokens: { $slice: -5 },
+            _id: 0,
+          }
+        );
+        if (!getUser) {
+          return res.status(401).send(<ResponseObject>{
+            success: false,
+            msg: "User not found, sorry not a valid token",
+          });
         }
-      );
-      if (!getUser) {
+        req.token = token;
+        req.rootUser = getUser;
+        req.userID = getUser.userID;
+        // Store into redis if user is not available in redis
+        const redisUserDetail: RedisUserDetail = {
+          id: getUser.id,
+          email: getUser.email,
+          name: getUser.name,
+          tokens: getUser.tokens,
+          userID: getUser.userID,
+        };
+        await redisClient.setEx(
+          getUser.id,
+          864000,
+          // for 10 days
+          JSON.stringify(redisUserDetail)
+        );
+        next();
+        return;
+      }
+      // User Exist in Redis
+      //   console.log(JSON.parse(userFromRedis));
+      const parsedUserDetail: RedisUserDetail = JSON.parse(userFromRedis);
+      const isTokenExist = parsedUserDetail.tokens.find((obj) => {
+        if (obj.token === token) return true;
+      });
+      if (!isTokenExist) {
         return res.status(401).send(<ResponseObject>{
           success: false,
-          msg: "User not found, sorry not a valid token",
+          msg: "Session is expired please login in again",
         });
       }
       req.token = token;
-      req.rootUser = getUser;
-      req.userID = getUser.userID;
+      req.rootUser = parsedUserDetail;
+      req.userID = parsedUserDetail.userID;
       next();
-      return;
+    } else {
+      // redis is not connected
     }
-    // console.log(JSON.parse(userFromRedis));
-    next();
   } catch (err) {}
 };
 

diff --git a/routes/user.ts b/routes/user.ts
@@ -7,7 +7,7 @@ const userRoute = express.Router();
 userRoute.get(
   "/index",
   authenticateWitRedis,
-  authenticate,
+  // authenticate,
   userController.main
 );