app.js

if (process.env.NODE_ENV !== "production") {
  require('dotenv').config();
}
const express = require("express");
const path = require("path");
const mongoose = require("mongoose");
const ejsMate = require("ejs-mate");
const methodOverride = require("method-override");

const session = require("express-session");
const flash = require("connect-flash");
const MongoStore = require('connect-mongo');

const passport = require("passport");
const LocalStrategy = require("passport-local");

const mongoSanitize = require('express-mongo-sanitize');
const helmet = require('helmet');


const expressError = require("./utils/expressErrors");
const campgroundsRoutes = require("./routes/campgrounds");
const reviewsRoutes = require("./routes/reviews");
const userRoutes = require("./routes/users");
const User = require("./models/user");

//connect to local MongoDB
const dbUrl = process.env.DBURL || "mongodb://localhost:27017/yelp-camp";
mongoose.connect(dbUrl, {
  useNewUrlParser: true,
  useCreateIndex: true,
  useUnifiedTopology: true,
  useFindAndModify: false,
});

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

//sets and uses
const app = express();
app.set("views", path.join(__dirname, "views"));
app.engine("ejs", ejsMate);
app.set("view engine", "ejs");
app.use(express.urlencoded({extended: true}));
app.use(methodOverride("_method"));
app.use(express.static(path.join(__dirname, "public")));
app.use(mongoSanitize());
app.use(helmet());
const scriptSrcUrls = [
  "https://stackpath.bootstrapcdn.com/",
  "https://api.tiles.mapbox.com/",
  "https://api.mapbox.com/",
  "https://kit.fontawesome.com/",
  "https://cdnjs.cloudflare.com/",
  "https://cdn.jsdelivr.net",
];
const styleSrcUrls = [
  "https://kit-free.fontawesome.com/",
  "https://stackpath.bootstrapcdn.com/",
  "https://api.mapbox.com/",
  "https://api.tiles.mapbox.com/",
  "https://fonts.googleapis.com/",
  "https://use.fontawesome.com/",
];
const connectSrcUrls = [
  "https://api.mapbox.com/",
  "https://a.tiles.mapbox.com/",
  "https://b.tiles.mapbox.com/",
  "https://events.mapbox.com/",
];
const fontSrcUrls = [];
app.use(
  helmet.contentSecurityPolicy({
    directives: {
      defaultSrc: [],
      connectSrc: ["'self'", ...connectSrcUrls],
      scriptSrc: ["'unsafe-inline'", "'self'", ...scriptSrcUrls],
      styleSrc: ["'self'", "'unsafe-inline'", ...styleSrcUrls],
      workerSrc: ["'self'", "blob:"],
      objectSrc: [],
      imgSrc: [
        "'self'",
        "blob:",
        "data:",
        "https://res.cloudinary.com/mahir1301/", //SHOULD MATCH YOUR CLOUDINARY ACCOUNT!
        "https://images.unsplash.com/",
      ],
      fontSrc: ["'self'", ...fontSrcUrls],
    },
  })
);

const secret=process.env.SECRET || "thisshouldneverbeasecret";

const store = MongoStore.create({
  mongoUrl: dbUrl,
  touchAfter: 24 * 60 * 60,
  crypto: {
    secret
  }
});

store.on("error", function (e) {
  console.log("session store Error", e);
});

const sessionConfig = {
  store,
  name: 'loginSess',
  secret,
  resave: false,
  saveUninitialized: true,
  cookie: {
    httpOnly: true,
    // secure:true,
    expires: Date.now() + 1000 * 60 * 60 * 24 * 7,
    maxAge: 1000 * 60 * 60 * 24 * 7,
  },
};

app.use(session(sessionConfig));
app.use(flash());

//passport stuff
app.use(passport.initialize());
app.use(passport.session());
passport.use(new LocalStrategy(User.authenticate()));
passport.serializeUser(User.serializeUser());
passport.deserializeUser(User.deserializeUser());

//flash middleware
app.use((req, res, next) => {
  res.locals.currentUser = req.user;
  res.locals.success = req.flash("success");
  res.locals.error = req.flash("error");
  return next();
});

//all routes
app.use("/campgrounds", campgroundsRoutes);
app.use("/campgrounds/:id/reviews", reviewsRoutes);
app.use("/", userRoutes);

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

app.all("*", (req, res, next) => {
  next(new expressError("Page Note Found!!!", 404));
});

//Error handler
app.use((err, req, res, next) => {
  if (!err.message) err.message = "ops!! something Went Wrong!!";
  res.status(err.statusCode || 500).render("error", {err});
});

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