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.gitignore

-data/attempts
-
-# Logs
-logs
-*.log
-npm-debug.log*
-yarn-debug.log*
-yarn-error.log*
-
-# Runtime data
-pids
-*.pid
-*.seed
-*.pid.lock
-
-# Directory for instrumented libs generated by jscoverage/JSCover
-lib-cov
-
-# Coverage directory used by tools like istanbul
-coverage
-
-# nyc test coverage
-.nyc_output
-
-# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
-.grunt
-
-# Bower dependency directory (https://bower.io/)
-bower_components
-
-# node-waf configuration
-.lock-wscript
-
-# Compiled binary addons (https://nodejs.org/api/addons.html)
-build/Release
-
-# Dependency directories
-node_modules/
-jspm_packages/
-
-# TypeScript v1 declaration files
-typings/
-
-# Optional npm cache directory
-.npm
-
-# Optional eslint cache
-.eslintcache
-
-# Optional REPL history
-.node_repl_history
-
-# Output of 'npm pack'
-*.tgz
-
-# Yarn Integrity file
-.yarn-integrity
-
-# dotenv environment variables file
-.env
-
-# next.js build output
-.next
+lib
+node_modules
\ No newline at end of file

package.json

@@ -4,27 +4,32 @@
   "description": "",
   "main": "server.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1",
-    "start": "node server.js",
-    "dev": "nodemon server.js",
+    "build": "yarn tsc",
+    "start": "yarn build && node lib/index.js",
+    "dev": "yarn build && nodemon lib/index.js",
     "burnthemall": "rm -rf node_modules package-lock.json && npm i"
   },
   "author": "Namit Nathwani",
   "license": "ISC",
   "dependencies": {
-    "express": "^4.17.1",
-    "express-winston": "^4.0.3",
+    "bcryptjs": "^2.4.3",
+    "express": "^4.18.2",
+    "jsonwebtoken": "^9.0.0",
     "lodash": "^4.17.19",
     "mathjs": "^7.2.0",
     "mongoose": "^5.9.25",
-    "simple-statistics": "^7.1.0",
-    "winston": "^3.3.3"
+    "simple-statistics": "^7.1.0"
   },
   "devDependencies": {
+    "@types/bcryptjs": "^2.4.2",
+    "@types/express": "^4.17.17",
+    "@types/jsonwebtoken": "^9.0.1",
+    "@types/lodash": "^4.14.191",
     "eslint": "^7.5.0",
     "eslint-config-airbnb": "^18.2.0",
     "eslint-config-airbnb-base": "^14.2.0",
     "eslint-plugin-import": "^2.22.0",
-    "nodemon": "^2.0.4"
+    "nodemon": "^2.0.4",
+    "typescript": "^4.9.5"
   }
 }

server.js

-const express = require("express");
-const mongoose = require("mongoose");
-
-// Utilities
-const { logger, expressWinstonLogger } = require("./utilities/loggers.js");
-
-// Routes
-const userRoute = require("./routes/user");
-
-// Environment constants
-const API_PORT = process.env.API_PORT || 3001;
-const MONGO_URL = "";
-
-// Service Initialisation
-mongoose.connect(MONGO_URL, {
-  useFindAndModify: false,
-  useNewUrlParser: true,
-  useUnifiedTopology: true,
-});
-const db = mongoose.connection;
-
-db.on("error", logger.error.bind(logger, "connection error:"));
-db.once("open", () => {
-  logger.info("Connected to MongoDB Instance");
-});
-
-// Express Initialisation
-const app = express();
-
-app.use(express.urlencoded({ extended: false }));
-app.use(expressWinstonLogger);
-
-app.use((req, res, next) => {
-  res.header("Access-Control-Allow-Origin", "*");
-  res.header(
-    "Access-Control-Allow-Headers",
-    "Origin, X-Requested-With, Content-Type, Accept"
-  );
-  res.header("Access-Control-Allow-Methods", "GET, POST, OPTIONS");
-
-  if (req.method === "OPTIONS") {
-    return res.status(200).end();
-  }
-
-  return next();
-});
-
-// Routes
-app.use("/user", userRoute);
-
-app.get("/", (req, res) => {
-  res.json({ msg: "Default Route" });
-});
-
-app.listen(API_PORT, () => logger.info(`Listening on port ${API_PORT}`));

src/config/contants.ts

+export const JWT_SECRET = "JWT_SECRET_SMART_RECRUITER";
+export const MONGO_URL =
+  "mongodb+srv://smart_req_admin:CvCbwaX6A4rnJuwv@smartreq.duejzyf.mongodb.net/App?retryWrites=true&w=majority";
+export const API_PORT = process.env.API_PORT || 5000;

src/config/types.ts

+import { Request } from "express";
+import { Query } from "express-serve-static-core";
+
+export enum USER_TYPE {
+  ORGANIZATION = "ORGANIZATION",
+  CANDIDATE = "CANDIDATE",
+}
+
+export type KeyDetails = {
+  key: any;
+  code: any;
+  shiftKey: any;
+  time: number;
+};
+
+export type KeystrokeType = {
+  keys: string[];
+  times: number[] | any;
+  sums?: number[];
+  means?: number[];
+  sd?: number[];
+  filteredMeans?: number[];
+  filteredSd?: number[];
+  covMatrix?: number[][];
+};
+
+export type KeystrokeDataType = {
+  hold: KeystrokeType;
+  flight: KeystrokeType;
+  dd: KeystrokeType;
+  full: KeystrokeType;
+};
+
+export type AddressType = {
+  addressLine: string;
+  city: string;
+  country: string;
+};
+
+export type AuthType = {
+  userType: USER_TYPE;
+  email: string;
+  userId?: string;
+  password: string;
+  keystrokeDataTimestamps: number[];
+  keystrokeData: KeystrokeDataType;
+};
+
+export type CandidateType = {
+  _id?: string;
+  name: string;
+  bio: string;
+  contacts: {
+    email: string;
+    phone: string;
+    address: AddressType;
+    residentialAddress?: AddressType;
+  };
+  dateOfBirth: string;
+  jobIds: string[];
+  profilePicture: string;
+};
+
+export type OrganizationType = {
+  _id?: string;
+  name: string;
+  description: string;
+  contacts: {
+    email: string;
+    phone: string[];
+    address: AddressType;
+    website: string;
+  };
+  profilePicture: string;
+};
+
+export type ControlsType = {
+  standard: {
+    sd: number;
+    threshold: number;
+    use: boolean;
+  };
+  fullStandard: {
+    threshold: number;
+    use: boolean;
+  };
+};
+
+export interface TypedRequest<T extends Query, U> extends Request {
+  body: U;
+  query: T;
+}
+
+//PAYLOADS
+export type SignUpPayload = {
+  passwords: string[];
+  keydown: KeyDetails[][];
+  keyup: KeyDetails[][];
+  email: string;
+  userType: USER_TYPE;
+  candidate?: CandidateType;
+  organization?: OrganizationType;
+};

src/index.ts

+import express from "express";
+import * as mongoose from "mongoose";
+import { API_PORT, MONGO_URL } from "./config/contants";
+
+const app = express();
+
+// Routes
+const userRoute = require("./routes/user");
+
+// Environment constants
+
+// Service Initialisation
+mongoose.connect(MONGO_URL, {
+  useFindAndModify: false,
+  useNewUrlParser: true,
+  useUnifiedTopology: true,
+});
+
+// Express Initialisation
+app.use(express.urlencoded({ extended: true }));
+app.use(express.json());
+
+app.use(express.urlencoded({ extended: false }));
+
+// Routes
+app.use("/user", userRoute);
+
+app.listen(API_PORT, () => console.log(`Listening on port ${API_PORT}`));

src/middlewares/auth.ts

+import { Request, Response, NextFunction } from "express";
+import * as jwt from "jsonwebtoken";
+import { JWT_SECRET } from "../config/contants";
+
+export const authMiddleware = (
+  req: Request,
+  res: Response,
+  next: NextFunction
+) => {
+  const token = req.header("Authorization");
+
+  if (!token) {
+    return res.status(401).send("Authorization denied");
+  } else {
+    const decodedToken = <jwt.JwtPayload>jwt.verify(token, JWT_SECRET);
+    if (decodedToken) {
+      req.query.id = decodedToken.id;
+      return next();
+    } else {
+      return res.status(401).send("Unauthorized Access");
+    }
+  }
+};

models/User.js → src/models/Auth.ts

-const mongoose = require('mongoose');
+import { Schema, model } from "mongoose";
+import { AuthType, USER_TYPE } from "../config/types";
 
-const userSchema = new mongoose.Schema({
-  username: { type: String, unique: true },
+const authSchema = new Schema<AuthType>({
+  userType: { type: String, require: true, default: USER_TYPE.CANDIDATE },
+  email: { type: String, unique: true },
+  userId: String,
   password: String,
-
   keystrokeDataTimestamps: [Date],
   keystrokeData: {
     hold: {
@@ -49,4 +51,5 @@ const userSchema = new mongoose.Schema({
   },
 });
 
-module.exports = mongoose.model('User', userSchema);
+const Auth = model<AuthType>("Auth", authSchema);
+export default Auth;

src/models/Candidate.ts

+import { Schema, model } from "mongoose";
+import { AddressType, CandidateType } from "../config/types";
+
+const AddressSchema = new Schema<AddressType>(
+  {
+    addressLine: String,
+    city: String,
+    country: String,
+  },
+  { id: false }
+);
+
+const ContactsSchema = new Schema<AddressType>(
+  {
+    email: { type: String, require: false },
+    phone: { type: String, require: false },
+    address: { type: AddressSchema, require: false },
+    residentialAddress: { type: AddressSchema, require: false },
+  },
+  { id: false }
+);
+
+const candidateSchema = new Schema<CandidateType>({
+  name: String,
+  bio: String,
+  contacts: { type: ContactsSchema, require: false },
+  dateOfBirth: String,
+  jobIds: [{ type: Schema.Types.ObjectId, ref: "jobs" }],
+  profilePicture: String,
+});
+
+const Candidates = model<CandidateType>("candidates", candidateSchema);
+export default Candidates;

src/models/Organization.ts

+import { Schema, model } from "mongoose";
+import { AddressType, OrganizationType } from "../config/types";
+
+const AddressSchema = new Schema<AddressType>(
+  {
+    addressLine: String,
+    city: String,
+    country: String,
+  },
+  { id: false }
+);
+
+const ContactsSchema = new Schema<AddressType>(
+  {
+    email: String,
+    phone: String,
+    address: { type: AddressSchema },
+    website: String,
+  },
+  { id: false }
+);
+
+const organizationSchema = new Schema<OrganizationType>({
+  name: String,
+  description: String,
+  contacts: { type: ContactsSchema, require: false },
+  profilePicture: String,
+});
+
+const Organizations = model<OrganizationType>(
+  "organizations",
+  organizationSchema
+);
+export default Organizations;

routes/user.js → src/routes/user.ts

-const express = require("express");
-const _ = require("lodash");
-const { logger } = require("../utilities/loggers");
-const {
+import * as express from "express";
+import * as _ from "lodash";
+import * as jwt from "jsonwebtoken";
+import * as bcrypt from "bcryptjs";
+import {
+  KeystrokeDataType,
+  SignUpPayload,
+  TypedRequest,
+  USER_TYPE,
+} from "../config/types";
+import Auth from "../models/Auth";
+import Candidates from "../models/Candidate";
+import Organizations from "../models/Organization";
+import {
   processKeystrokeData,
   findUser,
-  signUpNewUser,
-  updateUser,
   createSignupDataFromProcessedData,
   addAttemptToKeystrokeData,
   computeDataTendencies,
   processAttempt,
-} = require("../utilities/userUtility");
+} from "../utilities/keystroke";
+import { JWT_SECRET } from "../config/contants";
+import { authMiddleware } from "../middlewares/auth";
 
 const router = express.Router();
 
-router.use(express.json({ extended: false }));
-router.use(express.urlencoded({ extended: false }));
-
-router.post("/validateKeystroke", (req, res) => {
-  const processedKeystrokeData = processKeystrokeData(req.body);
-  res.json(processedKeystrokeData);
-});
-
-router.get("/find/:username", async (req, res) => {
-  res.json(await findUser(req.params.username));
-});
+router.post("/signup", async (req: TypedRequest<{}, SignUpPayload>, res) => {
+  const {
+    passwords,
+    keydown,
+    keyup,
+    email,
+    userType,
+    candidate,
+    organization,
+  } = req.body;
+  const attemptCount = passwords.length;
 
-router.get("/tendencies/:username", async (req, res) => {
-  const user = await findUser(req.params.username);
-  return res.json({
-    db: (await findUser(req.params.username)).keystrokeData,
-    calc: computeDataTendencies(user.keystrokeData),
-  });
-});
+  const auth = await Auth.findOne({ email });
 
-router.post("/signup", async (req, res) => {
-  const { passwords, keydown, keyup, username } = req.body;
-  const attemptCount = passwords.length;
+  if (auth) {
+    return res
+      .status(403)
+      .json({ success: false, msg: "User already exists in DB" });
+  }
 
-  const processedAttempts = Array(attemptCount)
-    .fill()
+  const processedAttempts: KeystrokeDataType[] = Array(attemptCount)
+    .fill(0)
     .map((v, i) =>
       processKeystrokeData({ keydown: keydown[i], keyup: keyup[i] })
     );
@@ -48,38 +54,34 @@ router.post("/signup", async (req, res) => {
     _.isEqual(v.full.keys, processedAttempts[0].full.keys)
   );
 
-  const userInDb = await findUser(username);
-
   if (!passwordsEqual) {
-    // If the entered passwords don't match
     return res
       .status(403)
       .json({ success: false, msg: "Passwords don't match" });
   }
 
-  if (userInDb) {
-    // If the user already exists in the Database
-    return res
-      .status(403)
-      .json({ success: false, msg: "User already exists in DB" });
-  }
+  try {
+    let newUser;
+    if (userType === USER_TYPE.CANDIDATE) {
+      newUser = await Candidates.create(candidate);
+    } else {
+      newUser = await Organizations.create(organization);
+    }
+
+    const signupData = await createSignupDataFromProcessedData(
+      email,
+      passwords,
+      userType,
+      newUser.id,
+      processedAttempts
+    );
 
-  const signupData = createSignupDataFromProcessedData(
-    username,
-    passwords,
-    processedAttempts
-  );
+    await Auth.create(signupData);
 
-  try {
-    const newUserData = await signUpNewUser(signupData);
-    logger.info(`Signed up ${username}`);
     return res.json({
       success: true,
-      username: newUserData.username,
     });
   } catch (error) {
-    logger.error(error);
-    logger.debug(req.body);
     return res
       .status(500)
       .json({ success: false, msg: "Error signing up", error });
@@ -87,65 +89,74 @@ router.post("/signup", async (req, res) => {
 });
 
 router.post("/login", async (req, res) => {
-  const { password, keydown, keyup, username, controls } = req.body;
+  const { password, keydown, keyup, email, controls, userType } = req.body;
 
-  const processedAttempt = processKeystrokeData({ keydown, keyup });
+  const auth = await Auth.findOne({ email });
 
-  const userInDb = await findUser(username);
-
-  if (!userInDb) {
-    // If the user does not exist in the Database
+  if (!auth) {
     return res
       .status(403)
       .json({ success: false, msg: "User does not exist in DB" });
   }
 
+  const processedAttempt: KeystrokeDataType = processKeystrokeData({
+    keydown,
+    keyup,
+  });
+
+  const isMatch = await bcrypt.compare(password, auth.password);
+
   const credentialsValid =
-    password === userInDb.password &&
-    _.isEqual(processedAttempt.hold.keys, userInDb.keystrokeData.hold.keys) &&
-    _.isEqual(
-      processedAttempt.flight.keys,
-      userInDb.keystrokeData.flight.keys
-    ) &&
-    _.isEqual(processedAttempt.dd.keys, userInDb.keystrokeData.dd.keys) &&
-    _.isEqual(processedAttempt.full.keys, userInDb.keystrokeData.full.keys);
+    isMatch &&
+    _.isEqual(processedAttempt.hold.keys, auth.keystrokeData.hold.keys) &&
+    _.isEqual(processedAttempt.flight.keys, auth.keystrokeData.flight.keys) &&
+    _.isEqual(processedAttempt.dd.keys, auth.keystrokeData.dd.keys) &&
+    _.isEqual(processedAttempt.full.keys, auth.keystrokeData.full.keys);
 
   if (!credentialsValid) {
     return res.status(403).json({ success: false, msg: "Invalid Credentials" });
   }
 
   const result = processAttempt({
-    userKeystrokeData: userInDb.keystrokeData,
+    userKeystrokeData: auth.keystrokeData,
     attemptKeystrokeData: processedAttempt,
     controls,
   });
 
   if (result.accepted) {
     const newUserData = addAttemptToKeystrokeData({
-      userData: userInDb,
+      userData: auth,
       attemptKeystrokeData: processedAttempt,
     });
-    newUserData.__v += 1;
 
-    await updateUser({
-      username,
-      updateData: newUserData,
-    });
+    await Auth.updateOne({ email }, { $set: newUserData });
   }
 
+  let user;
+
+  if (userType === USER_TYPE.CANDIDATE) {
+    user = await Candidates.findById(auth.userId);
+  } else {
+    user = await Organizations.findById(auth.userId);
+  }
+
+  const token = await jwt.sign(auth, JWT_SECRET, { expiresIn: "2h" });
+
   return res.json({
+    user,
     result,
+    token,
     db: {
-      hold: userInDb.keystrokeData.hold.means,
-      flight: userInDb.keystrokeData.flight.means,
-      dd: userInDb.keystrokeData.dd.means,
-      full: userInDb.keystrokeData.full.means,
+      hold: auth.keystrokeData.hold.means,
+      flight: auth.keystrokeData.flight.means,
+      dd: auth.keystrokeData.dd.means,
+      full: auth.keystrokeData.full.means,
     },
     filteredDb: {
-      hold: userInDb.keystrokeData.hold.filteredMeans,
-      flight: userInDb.keystrokeData.flight.filteredMeans,
-      dd: userInDb.keystrokeData.dd.filteredMeans,
-      full: userInDb.keystrokeData.full.filteredMeans,
+      hold: auth.keystrokeData.hold.filteredMeans,
+      flight: auth.keystrokeData.flight.filteredMeans,
+      dd: auth.keystrokeData.dd.filteredMeans,
+      full: auth.keystrokeData.full.filteredMeans,
     },
     attempt: {
       hold: processedAttempt.hold.times,
@@ -156,4 +167,24 @@ router.post("/login", async (req, res) => {
   });
 });
 
+router.post("/validateKeystroke", authMiddleware, (req, res) => {
+  const processedKeystrokeData = processKeystrokeData(req.body);
+  res.json(processedKeystrokeData);
+});
+
+router.get("/tendencies/:userId", authMiddleware, async (req, res) => {
+  findUser(req.params.userId)
+    .then((_auth) => {
+      if (_auth) {
+        return res.json({
+          db: _auth.keystrokeData,
+          calc: computeDataTendencies(_auth.keystrokeData),
+        });
+      } else {
+        throw new Error("User not found");
+      }
+    })
+    .catch((error) => res.status(500).send(error));
+});
+
 module.exports = router;

tsconfig.json

+{
+  "compilerOptions": {
+    "module": "commonjs",
+    "noImplicitReturns": true,
+    "noUnusedLocals": false,
+    "outDir": "lib",
+    "sourceMap": true,
+    "target": "es5",
+    "lib": ["dom", "dom.iterable", "esnext"],
+    "allowJs": true,
+    "skipLibCheck": true,
+    "esModuleInterop": true,
+    "allowSyntheticDefaultImports": true,
+    "strict": false,
+    "forceConsistentCasingInFileNames": true,
+    "noFallthroughCasesInSwitch": true,
+    "moduleResolution": "node",
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "noEmit": true,
+    "jsx": "react-jsx"
+  },
+  "compileOnSave": true,
+  "include": ["src"]
+}

utilities/loggers.js

-const winston = require('winston');
-const expressWinston = require('express-winston');
-
-// const winstonLevels = {
-// error: 0,
-// warn: 1,
-// info: 2,
-// verbose: 3,
-// debug: 4,
-// silly: 5,
-// };
-
-module.exports.logger = winston.createLogger({
-  transports: [
-    new winston.transports.Console(),
-  ],
-  format: winston.format.combine(
-    winston.format.colorize(),
-    winston.format.simple(),
-  ),
-});
-
-module.exports.expressWinstonLogger = expressWinston.logger({
-  transports: [
-    new winston.transports.Console({ level: 'verbose' }),
-  ],
-  format: winston.format.combine(
-    winston.format.colorize(),
-    winston.format.simple(),
-  ),
-  msg() {
-    return '{{res.statusCode}} {{req.method}} {{req.url}} {{res.responseTime}}ms';
-  },
-  colorize: true,
-
-  meta: false,
-
-  statusLevels: false, // default value
-  level(req, res) {
-    let level = '';
-    if (res.statusCode >= 100) { level = 'verbose'; }
-    if (res.statusCode >= 400) { level = 'warn'; }
-    if (res.statusCode >= 500) { level = 'error'; }
-    // Ops is worried about hacking attempts so make Unauthorized and Forbidden critical
-    // if (res.statusCode == 401 || res.statusCode == 403) { level = "critical"; }
-    return level;
-  },
-});