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app.js
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require('dotenv').config();
const express = require("express");
const ejs = require("ejs");
const bodyParser = require("body-parser");
const mongoose = require("mongoose");
const session = require("express-session");
const passport = require("passport");
const passportLocalMongoose = require("passport-local-mongoose");
//passport-local is one of the dependencies of passport-local-mongoose
const GoogleStrategy = require('passport-google-oauth20').Strategy;
const FacebookStrategy = require("passport-facebook").Strategy;
const findOrCreate = require("mongoose-findorcreate");
const app = express();
app.set("view engine", "ejs");
app.use(express.static("public"));
app.use(bodyParser.urlencoded({ extended: true }));
app.use(session({
secret: "Our litte secret.",
resave: false,
saveUninitialized: false
}));
//Set up our session with some initial configuration
app.use(passport.initialize());
//Initializing passport to start using passport.
app.use(passport.session());
//using passport to dealing with our session
mongoose.connect("mongodb://localhost:27017/userDB");
const userSchema = new mongoose.Schema({
email: String,
password: String,
googleId: String,
facebookId: String,
secret: String
});
userSchema.plugin(passportLocalMongoose);
//we are going to use to hash and salt our password and to save our users into the mongodb database.
userSchema.plugin(findOrCreate);
const User = new mongoose.model("User", userSchema);
passport.use(User.createStrategy());
passport.serializeUser(function (user, done) {
done(null, user.id);
});
passport.deserializeUser(function (id, done) {
User.findById(id, function (err, user) {
done(err, user);
});
});
passport.use(new GoogleStrategy({
clientID: process.env.CLIENT_ID,
clientSecret: process.env.CLIENT_SECRET,
callbackURL: "http://localhost:3000/auth/google/secrets",
userProfileURL: "https://www.googleapis.com/oauth2/v3/userinfo"
},
function (accessToken, refreshToken, profile, cb) {
console.log(profile);
User.findOrCreate({ googleId: profile.id }, function (err, user) {
return cb(err, user);
});
}
));
passport.use(new FacebookStrategy({
clientID: process.env.FACEBOOK_APP_ID,
clientSecret: process.env.FACEBOOK_APP_SECRET,
callbackURL: "http://localhost:3000/auth/facebook/secrets",
profileFields:['email','birthday',"photos"]
},
function (accessToken, refreshToken, profile, cb) {
console.log(profile);
User.findOrCreate({ facebookId: profile.id }, function (err, user) {
return cb(err, user);
});
}
));
app.get("/", function (req, res) {
res.render("home");
});
app.get("/auth/google",
passport.authenticate("google", { scope: ["profile"] }));
app.get("/auth/google/secrets",
passport.authenticate("google", { failureRedirect: "/login" }),
function (req, res) {
// Successful authentication, redirect to secrets.
res.redirect("/secrets");
});
app.get('/auth/facebook',
passport.authenticate('facebook', { scope : ['email',"user_birthday","user_photos" ] }));
app.get('/auth/facebook/secrets',
passport.authenticate('facebook', { failureRedirect: '/login' }),
function (req, res) {
// Successful authentication, redirect home.
res.redirect('/secrets');
});
app.get("/submit", function (req, res) {
if (req.isAuthenticated()) {
res.render("submit");
}
else {
res.redirect("/login");
}
})
app.get("/login", function (req, res) {
res.render("login");
});
app.get("/register", function (req, res) {
res.render("register");
});
app.get("/secrets", function (req, res) {
User.find({ "secret": { $ne: null } }, function (err, foundUsers) {
if (err) {
console.log(err);
} else {
if (foundUsers) {
res.render("secrets", { userWithSecrets: foundUsers });
}
}
});
});
app.post("/submit", function (req, res) {
const submittedSecret = req.body.secret;
console.log(req.user._id);
User.findById(req.user._id, function (err, foundUser) {
if (err) {
console.log(err);
} else {
if (foundUser) {
foundUser.secret = submittedSecret;
foundUser.save(function () {
res.redirect("/secrets");
})
}
}
});
})
app.get("/logout", function (req, res) {
req.logout();
res.redirect("/");
})
app.post("/register", function (req, res) {
User.register({ username: req.body.username }, req.body.password, function (err, user) {
if (err) {
console.log(err);
res.redirect("/register");
} else {
passport.authenticate("local")(req, res, function () {
res.redirect("/secrets");
});
}
});
//Its only because of the passport-local-mongoose that we can avoid creating our new user, saving our user and interact with mongoose directly.Instead we are going to be using the package as our middleman to handle all of that for us.
});
app.post("/login", function (req, res) {
const user = new User({
username: req.body.username,
password: req.body.password
});
//This comes from passport package
req.login(user, function (err) {
if (err) {
console.log(err);
} else {
passport.authenticate("local")(req, res, function () {
res.redirect("/secrets");
});
//"local"-->Strategy
}
//Callback returns an err if not able to find that user in our database
});
});
app.listen(3000, function () {
console.log("Server started on port 3000.");
})