app.js

var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
var bodyParser = require('body-parser');

var passport = require('passport');
var flash = require('connect-flash');
var LocalStrategy = require('passport-local').Strategy;
var session = require('express-session');
var User = require('./db/user');

var indexRouter = require('./routes/index');
var apiRouter = require('./routes/api');
var loginRouter = require('./routes/login');
var logoutRouter = require('./routes/logout');
var signupRouter = require('./routes/signup');
var mongoose = require('mongoose');

var db = mongoose.connection;
db.on('error', console.error);
db.once('open', function () {
    // CONNECTED TO MONGODB SERVER
    console.log("Connected to mongod server");
});

require('dotenv').config();

mongoose.connect(process.env.MONGO_URL, {useNewUrlParser: true});

var app = express();

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

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({extended: true}));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

/* passport 설정 */
passport.serializeUser(function (user, done) {
    done(null, user);
});
passport.deserializeUser(function (user, done) {
    done(null, user);
});

passport.use(new LocalStrategy(
    {
        usernameField: 'username',
        passwordField: 'password'
    },
    function (id, password, done) {
        var hashPassword = User.hashedPassword(password);
        User.findOne({id: id}, function (err, user) {
            if (err) {
                return done(err);
            }
            if (!user || !user.validPassword(hashPassword)) {
                return done(null, false, {message: '계졍 정보가 틀립니다!'});
            }
            return done(null, user);
        })
    }
));

app.use(session({
    secret: 'rollover',
    resave: false,
    saveUninitialized: true
}));

app.use(flash());
app.use(passport.initialize());
app.use(passport.session());


app.use('/login', loginRouter);
app.use('/logout', logoutRouter);
app.use('/signup', signupRouter);
app.use('/api', apiRouter);
app.use('/', indexRouter);

// catch 404 and forward to error handler
app.use(function (req, res, next) {
    next(createError(404));
});

// error handler
app.use(function (err, req, res, next) {
    // set locals, only providing error in development
    res.locals.message = err.message;
    res.locals.error = req.app.get('env') === 'development' ? err : {};

    // render the error page
    res.status(err.status || 500);
    res.render('error');
});


module.exports = app;