BlogMan/back-end/src/controllers/api/users.js at bc3eeea2afd8e83ea43bac82eb35884697ad342f · thisavijit/BlogMan · GitHub

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const createError = require('http-errors');
const nodemailer = require('nodemailer');
const axios = require('axios');
const createController = require('../createController');
const User = require('../../models/User');
const authValidator = require('../../validators/auth');
const jwt = require('../../utils/jwt');
const { USER_NOT_FOUND, INCORRECT_PASSWORD } = require('../../utils/constants');

module.exports = {
  login: createController(
    async (req, res) => {
      const { username, password } = res.locals.inputBody;

      const user = await User.findOne({ username });
      if (!user)
        throw new createError(404, USER_NOT_FOUND, {
          errors: {
            username: USER_NOT_FOUND,
          },
        });
      const isMatch = await user.checkPassword(password);
      if (isMatch) {
        const token = await jwt.sign(user);
        res.status(200).json({
          token,
        });
      } else {
        throw new createError(401, INCORRECT_PASSWORD, {
          errors: { password: INCORRECT_PASSWORD },
        });
      }
    },
    {
      validation: {
        throwError: true,
        asObject: true,
        validators: [authValidator.login],
      },
      inputs: ['username', 'password'],
    },
  ),

  register: createController(
    async (req, res) => {
      const body = res.locals.inputBody;

      if (body.birth) {
        body.birth = new Date(body.birth);
      }

      if (await User.findOne({ username: body.username })) {
        throw new createError(409, 'This username aleady exists.', {
          errors: {
            username: `Username '${body.username}' is already taken.'`,
          },
        });
      }

      if (await User.findOne({ email: body.email })) {
        throw new createError(409, 'This email aleady exists.', {
          errors: {
            email: `Email '${body.email}' is already taken.'`,
          },
        });
      }

      // sending email

      const output = `
      <!doctype html>
       <html lang="en">
         <head>
           <!-- Required meta tags -->
           <meta charset="utf-8">
           <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

         <style>
             .container {

                 background-color: #eee;

                 font-family: Arial, Helvetica, sans-serif;
                 padding: 20px;
             }
         </style>


         </head>
         <body>
           <div class="container">
               <h3>Howdy ${body.username}!</h3>
               <p>Thanks for signing up at BlogMan. Hope you have fun exploring the courses and blogs here.</p>
               <p>Keep learning, keep coding :)</p>

               <div class="footer">

                   <p>Regards, <br>Team BlogMan</p>
               </div>
           </div>


         </body>
       </html>`;

      // create reusable transporter object using the default SMTP transport
      let transporter = nodemailer.createTransport({
        host: 'smtp.gmail.com', //'smtp.ethereal.email',
        port: 587, //587
        secure: false, // true for 465, false for other ports
        auth: {
          user: 'projectblogman@gmail.com', // generated ethereal user
          pass: 'girlscript2020', //account.pass
        },
        // Removed the tls configuration to use default secure settings
      });

      // setup email data with unicode symbols
      let mailOptions = {
        from: 'BlogMan', // sender address
        to: `${body.email}`, // list of receivers
        subject: 'Welcome to BlogMan!', // Subject line

        html: output, // html body
      };

      // send mail with defined transport object
      transporter.sendMail(mailOptions, (error, info) => {
        if (error) {
          return console.log(error);
        }
        console.log('Message sent: %s', info.messageId);

        console.log('Preview URL: %s', nodemailer.getTestMessageUrl(info));
      });

      // creating a new user
      const newUser = new User(body);

      await newUser.save();

      const token = await jwt.sign(newUser);

      res.status(201).json({
        user: newUser,
        token,
      });
    },
    {
      validation: {
        throwError: true,
        asObject: true,
        validators: [authValidator.register],
      },
      inputs: ['name', 'username', ['password', 'hash'], 'email', 'birth'],
    },
  ),

  googleSignup: createController(
    async (req, res) => {
      const { token, username } = res.locals.inputBody;

      if (await User.findOne({ username })) {
        throw new createError(409, 'This username aleady exists.', {
          errors: {
            username: `Username '${username}' is already taken.'`,
          },
        });
      }

      const response = await axios.get(
        'https://www.googleapis.com/userinfo/v2/me',
        {
          headers: { Authorization: `Bearer ${token}` },
        },
      );

      const data = response.data;
      const { id, email, name } = data;

      if (await User.findOne({ $or: [{ email }, { googleId: id }] })) {
        throw new createError(409, 'This account already exists.', {
          errors: {
            default: `This account already exists, please try logging in.`,
          },
        });
      }

      const user = await User.create({
        googleId: id,
        name,
        email,
        username,
      });

      const jwtToken = await jwt.sign(user);
      res.status(200).json({
        token: jwtToken,
        user,
      });
    },
    {
      validation: {
        throwError: true,
        asObject: true,
        validators: [authValidator.googleSignup],
      },
      inputs: ['username', 'token'],
    },
  ),

  googleLogin: createController(
    async (req, res) => {
      const { token } = res.locals.inputBody;

      const response = await axios.get(
        'https://www.googleapis.com/userinfo/v2/me',
        {
          headers: { Authorization: `Bearer ${token}` },
        },
      );

      const data = response.data;
      const { id, email, name } = data;
      const user = await User.findOne({ $or: [{ email }, { googleId: id }] });
      if (!user) {
        throw new createError(401, 'This account does not exists.', {
          errors: {
            default: `This account does not exists, please signup.`,
          },
        });
      }

      const jwtToken = await jwt.sign(user);
      res.status(200).json({
        token: jwtToken,
      });
    },
    {
      validation: {
        throwError: true,
        asObject: true,
        validators: [authValidator.googleLogin],
      },
      inputs: ['token'],
    },
  ),
};