Projeto - LAMA

semana20/projeto-LAMA/jest.config.js

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+module.exports = {
+  roots: ["<rootDir>/tests"],
+  transform: {
+    "^.+\\.tsx?$": "ts-jest",
+  },
+  testRegex: "(/__tests__/.*|(\\.|/)(test|spec))\\.tsx?$",
+  moduleFileExtensions: ["ts", "tsx", "js", "jsx", "json", "node"],
+};

semana20/projeto-LAMA/package.json

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+{
+  "name": "lama-template",
+  "version": "1.0.0",
+  "description": "Template para o projeto LAMA",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "start": "ts-node ./src/index.ts"
+  },
+  "keywords": [
+    "api",
+    "labook"
+  ],
+  "author": "João Alves",
+  "license": "ISC",
+  "dependencies": {
+    "@types/bcryptjs": "^2.4.2",
+    "@types/express": "^4.17.7",
+    "@types/jest": "^25.2.3",
+    "@types/jsonwebtoken": "^8.5.0",
+    "@types/knex": "^0.16.1",
+    "@types/uuid": "^8.0.0",
+    "bcryptjs": "^2.4.3",
+    "dotenv": "^8.2.0",
+    "express": "^4.17.1",
+    "jsonwebtoken": "^8.5.1",
+    "jest": "^26.0.1",
+    "knex": "^0.21.2",
+    "moment": "^2.27.0",
+    "mysql": "^2.18.1",
+    "ts-jest": "^26.1.0",
+    "ts-node": "^8.10.2",
+    "typescript": "^3.9.6",
+    "uuid": "^8.2.0"
+  }
+}

semana20/projeto-LAMA/src/business/UserBusiness.ts

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+import { UserInputDTO, LoginInputDTO } from "../model/User";
+import { UserDatabase } from "../data/UserDatabase";
+import { IdGenerator } from "../services/IdGenerator";
+import { HashManager } from "../services/HashManager";
+import { Authenticator } from "../services/Authenticator";
+
+export class UserBusiness {
+
+    async createUser(user: UserInputDTO) {
+
+        const idGenerator = new IdGenerator();
+        const id = idGenerator.generate();
+
+        const hashManager = new HashManager();
+        const hashPassword = await hashManager.hash(user.password);
+
+        const userDatabase = new UserDatabase();
+        await userDatabase.createUser(id, user.email, user.name, hashPassword, user.role);
+
+        const authenticator = new Authenticator();
+        const accessToken = authenticator.generateToken({ id, role: user.role });
+
+        return accessToken;
+    }
+
+    async getUserByEmail(user: LoginInputDTO) {
+
+        const userDatabase = new UserDatabase();
+        const userFromDB = await userDatabase.getUserByEmail(user.email);
+
+        const hashManager = new HashManager();
+        const hashCompare = await hashManager.compare(user.password, userFromDB.getPassword());
+
+        const authenticator = new Authenticator();
+        const accessToken = authenticator.generateToken({ id: userFromDB.getId(), role: userFromDB.getRole() });
+
+        if (!hashCompare) {
+            throw new Error("Invalid Password!");
+        }
+
+        return accessToken;
+    }
+}

semana20/projeto-LAMA/src/controller/UserController.ts

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+import { Request, Response } from "express";
+import { UserInputDTO, LoginInputDTO} from "../model/User";
+import { UserBusiness } from "../business/UserBusiness";
+import { BaseDatabase } from "../data/BaseDatabase";
+
+export class UserController {
+    async signup(req: Request, res: Response) {
+        try {
+
+            const input: UserInputDTO = {
+                email: req.body.email,
+                name: req.body.name,
+                password: req.body.password,
+                role: req.body.role
+            }
+
+            const userBusiness = new UserBusiness();
+            const token = await userBusiness.createUser(input);
+
+            res.status(200).send({ token });
+
+        } catch (error) {
+            res.status(400).send({ error: error.message });
+        }
+
+        await BaseDatabase.destroyConnection();
+    }
+
+    async login(req: Request, res: Response) {
+
+        try {
+
+            const loginData: LoginInputDTO = {
+                email: req.body.email,
+                password: req.body.password
+            };
+
+            const userBusiness = new UserBusiness();
+            const token = await userBusiness.getUserByEmail(loginData);
+
+            res.status(200).send({ token });
+
+        } catch (error) {
+            res.status(400).send({ error: error.message });
+        }
+
+        await BaseDatabase.destroyConnection();
+    }
+
+}

semana20/projeto-LAMA/src/data/BaseDatabase.ts

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+import knex from "knex";
+import Knex   from "knex";
+
+
+export abstract class BaseDatabase {
+
+    private static connection: Knex | null = null;
+
+    protected getConnection(): Knex{
+        if(!BaseDatabase.connection){
+            BaseDatabase.connection = knex({
+                client: "mysql",
+                connection: {
+                  host: process.env.DB_HOST,
+                  port: 3306,
+                  user: process.env.DB_USER,
+                  password: process.env.DB_PASSWORD,
+                  database: process.env.DB_DATABASE_NAME,
+                },
+              });        
+        }
+
+        return BaseDatabase.connection;
+    }
+
+    public static async destroyConnection(): Promise<void>{
+        if(BaseDatabase.connection){
+            await BaseDatabase.connection.destroy();
+            BaseDatabase.connection = null;
+        }
+    }
+}

semana20/projeto-LAMA/src/data/UserDatabase.ts

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+import { BaseDatabase } from "./BaseDatabase";
+import { User } from "../model/User";
+
+export class UserDatabase extends BaseDatabase {
+
+  private static TABLE_NAME = "";
+
+  public async createUser(
+    id: string,
+    email: string,
+    name: string,
+    password: string,
+    role: string
+  ): Promise<void> {
+    try {
+      await this.getConnection()
+        .insert({
+          id,
+          email,
+          name,
+          password,
+          role
+        })
+        .into(UserDatabase.TABLE_NAME);
+    } catch (error) {
+      throw new Error(error.sqlMessage || error.message);
+    }
+  }
+
+  public async getUserByEmail(email: string): Promise<User> {
+    const result = await this.getConnection()
+      .select("*")
+      .from(UserDatabase.TABLE_NAME)
+      .where({ email });
+
+    return User.toUserModel(result[0]);
+  }
+
+}

semana20/projeto-LAMA/src/error/BaseError.ts

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+export abstract class BaseError extends Error {
+    constructor(message: string, public code: number) {
+      super(message);
+    }
+  }
+

semana20/projeto-LAMA/src/index.ts

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+import dotenv from "dotenv";
+import {AddressInfo} from "net";
+import express from "express";
+import { userRouter } from "./routes/userRouter";
+dotenv.config();
+const app = express();
+
+app.use(express.json());
+
+app.use("/user", userRouter);
+
+const server = app.listen(3000, () => {
+    if (server) {
+      const address = server.address() as AddressInfo;
+      console.log(`Servidor rodando em http://localhost:${address.port}`);
+    } else {
+      console.error(`Falha ao rodar o servidor.`);
+    }
+  });

semana20/projeto-LAMA/src/model/User.ts

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+export class User{
+    constructor(
+    private id: string,
+    private name: string,
+    private email: string,
+    private password: string,
+    private role: UserRole
+    ){}
+
+    getId(){
+        return this.id;
+    }
+
+    getName(){
+        return this.name
+    }
+
+    getEmail(){
+        return this.email;
+    }
+
+    getPassword(){
+        return this.password;
+    }
+
+    getRole(){
+        return this.role;
+    }
+
+    setId(id: string){
+        this.id = id;
+    }
+
+    setName(name: string){
+        this.name = name;
+    }
+
+    setEmail(email: string){
+        this.email = email;
+    }
+
+    setPassword(password: string){
+        this.password = password;
+    }
+
+    setRole(role: UserRole){
+        this.role = role;
+    }
+
+   static stringToUserRole(input: string): UserRole{
+        switch (input) {
+            case "NORMAL":
+              return UserRole.NORMAL;
+            case "ADMIN":
+              return UserRole.ADMIN;
+            default:
+              throw new Error("Invalid user role");
+          }
+    }
+
+    static toUserModel(user: any): User {
+        return new User(user.id, user.name, user.email, user.password, User.stringToUserRole(user.role));
+      }
+
+
+}
+
+export interface UserInputDTO{
+    email: string;
+    password: string;
+    name: string;
+    role: string;
+}
+
+export interface LoginInputDTO{
+    email: string;
+    password: string;
+}
+
+export enum UserRole{
+    NORMAL = "NORMAL",
+    ADMIN = "ADMIN"
+}

semana20/projeto-LAMA/src/routes/userRouter.ts

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+import express from "express";
+import { UserController } from "../controller/UserController";
+
+
+export const userRouter = express.Router();
+
+const userController = new UserController();
+
+userRouter.post("/signup", userController.signup);
+userRouter.post("/login", userController.login);

semana20/projeto-LAMA/src/services/Authenticator.ts

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+import * as jwt from "jsonwebtoken";
+
+export class Authenticator {
+  public generateToken(input: AuthenticationData,
+    expiresIn: string = process.env.ACCESS_TOKEN_EXPIRES_IN!): string {
+    const token = jwt.sign(
+      {
+        id: input.id,
+        role: input.role
+      },
+      process.env.JWT_KEY as string,
+      {
+        expiresIn,
+      }
+    );
+    return token;
+  }
+
+  public getData(token: string): AuthenticationData {
+    const payload = jwt.verify(token, process.env.JWT_KEY as string) as any;
+    const result = {
+      id: payload.id,
+      role: payload.role
+    };
+    return result;
+  }
+}
+
+interface AuthenticationData {
+  id: string;
+  role?: string;
+}

semana20/projeto-LAMA/src/services/HashManager.ts

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+import * as bcrypt from "bcryptjs";
+
+
+export class HashManager {
+
+    public async hash(text: string): Promise<string> {
+        const rounds = 12;
+        const salt = await bcrypt.genSalt(rounds);
+        const result = await bcrypt.hash(text, salt);
+        return result;
+    }
+
+    public async compare(text: string, hash: string): Promise<boolean>{
+        return await bcrypt.compare(text, hash);
+    }
+
+}