website.js

const fastify = require('fastify')({
  logger: true,
});
const got = require('got');

const fs = require('fs').promises;
const util = require('util');
const addErrorHandler = require('./6_error_handler');

// Validate incoming data
const opts = {
  schema: {
    body: {
      type: 'object',
      properties: {
        password: { type: 'string' },
        email: { type: 'string' },
      },
    },
  },
};

fastify.register(require('fastify-formbody'));
fastify.register(require('fastify-cookie'));
fastify.register(require('fastify-session'), {
  cookieName: 'sessionId',
  secret: 'a secret with minimum length of 32 characters',
  cookie: { secure: false },
  expires: 1800000,
});

// Add a login route that returns a login page
fastify.get('/login', async (request, reply) => {
  try {
    reply.type('text/html');
    return fs.readFile('./login.html');
  } catch (error) {
    console.log(error);
    process.exit(1);
  }
});

// Add a login route that handles the actual login
fastify.post('/login', opts, async (request, reply) => {
  const { email, password } = request.body;

  console.log(email, typeof password);
  if (password === '42') {
    request.session.authenticated = true;
    reply.redirect('/');
  } else {
    reply.redirect('/login');
  }
});

// Add a logout route
fastify.get('/logout', async (request, reply) => {
  if (request.session.authenticated) {
    await util.promisify(request.destroySession).call(request);
  }
  reply.redirect('/');
});

fastify.get('/picture', async (request, reply) => {
  // Add repeat logic
  const res = await got('https://picsum.photos/600', { encoding: null });
  reply.type('image/jpeg');
  return res.body;
});

fastify.get('/', async (request, reply) => {
  // The new part
  reply.type('text/html');
  if (request.session.authenticated) {
    return 'Logged in<br><br><a href="/logout">Logout</a>';
  }
  return 'Please login<br><br><a href="/login">Login</a>';
});

addErrorHandler(fastify);

const start = async () => {
  try {
    await fastify.listen(3000);
  } catch (err) {
    fastify.log.error(err);
    process.exit(1);
  }
};
start();

// Task: Split the setup here into logical parts: Schemas, routes and a plugin
// folder. Make sure that everything is still working as expected.