app.js

if (process.env.NODE_ENV !== 'production') {
    require('dotenv').config();
}

const express = require('express');
const path = require('path');
const mongoose = require('mongoose');
const localDbUri = 'mongodb://127.0.0.1:27017/yelp-camp';
const ejsMate = require('ejs-mate');
const session = require('express-session');
const flash = require('connect-flash');
const ExpressError = require('./utils/ExpressError');
const methodOverride = require('method-override');
const passport = require('passport');
const LocalStrategy = require('passport-local');
const User = require('./models/user');
// const helmet = require('helmet');
const mongoSanitize = require('express-mongo-sanitize');
const userRoutes = require('./routes/users');
const campgroundRoutes = require('./routes/campgrounds');
const reviewRoutes = require('./routes/reviews');
const MongoDBStore = require('connect-mongo')(session);
const dbUrl = process.env.DB_URL || localDbUri;

mongoose.connect(dbUrl, {
    useNewUrlParser: true,
    useUnifiedTopology: true,
});

const db = mongoose.connection;
db.on('error', console.error.bind(console, 'connection error:'));
db.once('open', () => {
    console.log('Database connected');
});

const app = express();

app.engine('ejs', ejsMate);
app.set('view engine', 'ejs');
app.set('views', path.join(__dirname, 'views'));

app.use(express.urlencoded({ extended: true }));
app.use(methodOverride('_method'));
app.use(express.static(path.join(__dirname, 'public')));
app.use(mongoSanitize());

const secret = process.env.SECRET || 'thisshouldbebettersecret';

const store = new MongoDBStore({
    url: dbUrl,
    secret,
    touchAfter: 24 * 60 * 60,
});

store.on('error', function (e) {
    console.log('SESSION STORE ERROR', e);
});

const sessionConfig = {
    store,
    secret,
    resave: false,
    saveUninitialized: true,
    cookie: {
        name: 'session', // connect_sid -> session으로 변경
        httpOnly: true,
        // secure: true, // https를 위한 설정. 배포할 때 주석 풀 예정
        expires: Date.now() + 1000 * 60 * 60 * 24 * 7,
        maxAge: 1000 * 60 * 60 * 24 * 7,
    },
};
app.use(session(sessionConfig));
app.use(flash());

app.use(passport.initialize());
app.use(passport.session());
passport.use(new LocalStrategy(User.authenticate()));

passport.serializeUser(User.serializeUser());
passport.deserializeUser(User.deserializeUser());

app.use((req, res, next) => {
    console.log(req.query);
    res.locals.currentUser = req.user;
    res.locals.success = req.flash('success');
    res.locals.error = req.flash('error');
    next();
});

app.get('/fakeUser', async (req, res) => {
    const user = new User({ email: 'coltttt@gmail.com', username: 'coltttt' });
    const newUser = await User.register(user, 'chicken');
    res.send(newUser);
});

app.use('/', userRoutes);
app.use('/campgrounds', campgroundRoutes);
app.use('/campgrounds/:id/reviews', reviewRoutes);

app.get('/', (req, res) => {
    res.render('home');
});

// 모든 라우트에 대한 콜백. 순서가 맨 아래에 있어야 함.
app.all('*', (req, res, next) => {
    next(new ExpressError('Page Not Found', 404));
});

// Error Handling -> Section 42. 앱의 오류 처리하기 참고
app.use((err, req, res, next) => {
    const { statusCode = 500 } = err;
    if (!err.message) err.message = 'Oh No, Something Went Wrong!';
    res.status(statusCode).render('error', { err });
});

const port = process.env.PORT || 3000;
app.listen(port, () => {
    console.log(`Serving on port ${port}`);
});