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app.js
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app.js
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require("dotenv").config();
const express = require("express");
const bodyParser = require("body-parser");
const ejs = require("ejs");
const mongoose = require("mongoose");
///////////PASSPORT AND SESSION///////////////// step 1///
// import all packages {
const session = require('express-session');
const passport = require('passport');
const passportLocalMongoose = require('passport-local-mongoose');
//-------------------------OAUTH2.0--------------------------------------------------------------//
const GoogleStrategy = require('passport-google-oauth20');
const FacebookStrategy = require('passport-facebook');
//// }
const app = express();
app.set("view engine", "ejs");
app.use(express.static("public"));
app.use(bodyParser.urlencoded({ extended: true }));
///////////PASSPORT AND SESSION///////////////// step 2///
///// now use Session AND initialize PASSPORT, to use session init {
app.use(session({
secret: process.env.SECRET,
resave: false,
saveUninitialized: false,
}))
app.use(passport.initialize());
app.use(passport.session());
//// }
mongoose.connect("mongodb+srv://" + process.env.MONGO_KEY + "@cluster0.ctj2b.mongodb.net/" + process.env.DB_NAME, { useNewUrlParser: true });
const userSchema = new mongoose.Schema({
email: String,
password: String,
googleId: String,
secret: String
})
///////////PASSPORT AND SESSION///////////////// step 3///
///// now use plugin passportLocalMongoose to connect mongoose and passport {
userSchema.plugin(passportLocalMongoose);
//// }
const User = new mongoose.model("user", userSchema);
///////////PASSPORT AND SESSION///////////////// step 4///
///// USING PASSPORT TO INTITIALIZE,CREATE COOKIE(serializeUser) and DESTROY COOKIE
///// (deserializeUser) .All using passport only {
passport.use(User.createStrategy());
//--------------------------------------PASSPORT OAUTH2.0--------------------------------\\
passport.serializeUser(function (user, cb) {
process.nextTick(function () {
cb(null, { id: user.id, username: user.username });
});
});
passport.deserializeUser(function (user, cb) {
process.nextTick(function () {
return cb(null, user);
});
});
passport.use(new GoogleStrategy({
clientID: process.env.CLIENT_ID,
clientSecret: process.env.CLIENT_SECRET,
callbackURL: process.env.CALLBACK_G,
scope: ['profile'],
state: true
},
function verify(accessToken, refreshToken, profile, cb) {
// console.log(profile);
User.findOne({
googleId: profile.id
}, function (err, user) {
if (err) {
return cb(err);
}
//No user was found... so create a new user with values from Facebook (all the profile. stuff)
if (!user) {
user = new User({
googleId: profile.id,
email: profile.displayName,
// email: profile.emails[0].value,
// password: profile.username,
provider: profile.provider,
//now in the future searching on User.findOne({'facebook.id': profile.id } will match because of this next line
// facebook: profile._json
});
user.save(function (err) {
if (err) console.log(err);
return cb(err, user);
});
} else {
//found user. Return
// console.log(user);
return cb(err, user);
}
});
}));
passport.use(new FacebookStrategy({
clientID: process.env.CLIENT_ID_FB,
clientSecret: process.env.CLIENT_SECRET_FB,
callbackURL: process.env.CALLBACK_FB
},
function (accessToken, refreshToken, profile, cb) {
// console.log(profile);
User.findOne({
googleId: profile.id
}, function (err, user) {
if (err) {
return cb(err);
}
//No user was found... so create a new user with values from Facebook (all the profile. stuff)
if (!user) {
user = new User({
googleId: profile.id,
email: profile.displayName,
// email: profile.emails[0].value,
// password: profile.username,
password: profile.provider,
//now in the future searching on User.findOne({'facebook.id': profile.id } will match because of this next line
// facebook: profile._json
});
user.save(function (err) {
if (err) console.log(err);
return cb(err, user);
});
} else {
//found user. Return
// console.log(user);
return cb(err, user);
}
});
}
));
//// }
app.get("/", (req, res) => {
res.render("home", {});
})
app.get("/login", (req, res) => {
res.render("login", {});
})
app.get("/register", (req, res) => {
res.render("register", {});
})
//--------------------------------------PASSPORT OAUTH2.0--------------------------------\\
app.get('/auth/google', passport.authenticate('google'));
app.get('/auth/google/secrets', passport.authenticate(
'google',
{ failureRedirect: '/login' }),
function (req, res) {
// Successful authentication, redirect secrets.
res.redirect('/secrets');
}
);
app.get('/auth/facebook', passport.authenticate('facebook'));
app.get('/auth/facebook/secrets', passport.authenticate(
'facebook',
{ failureRedirect: '/login' }),
function (req, res) {
// Successful authentication, redirect home.
res.redirect('/secrets');
}
);
app.get("/secrets", (req, res) => {
///////////PASSPORT AND SESSION///////////////// step 6///
///// Now, we will check every time if anyone wants to access "secrets" ,they must {
///// be authenticated or matched first and while you login and register we create
///// a cookie which store the auth data ,and user dont need to again authrize
///// until session timeout/brakout
// if (req.isAuthenticated()) {
// res.render("secrets", {});
// } else {
// res.redirect("/login");
// }
User.find({ secret: { $ne: null } }, (err, userSecrets) => {
if (err) { console.log(err); }
else {
res.render("secrets", { userSecret: userSecrets });
}
})
})
app.get("/logout", (req, res) => {
req.logout(function (err) {
if (err) { console.log(err); }
res.redirect('/');
});
})
app.post("/register", (req, res) => {
///////////PASSPORT AND SESSION///////////////// step 5///
///// Since we have passportlocalmongoose ,we will use 'register' method to save
///// data in DB, instead of 'save',passport and mongoose,i.e model,schema,DB,
///// session,cookie are connected internally {
User.register(
{ username: req.body.username, active: false },/// pased username
req.body.password, /// passed email
function (err, user) {
if (err) {
console.log(err)
res.redirect("/register");
}
else {
passport.authenticate("local")(req, res, () => {
res.redirect("/secrets");
})
}
});
//// }
})
app.post("/login", (req, res) => {
///////////PASSPORT AND SESSION///////////////// step 7///
///// Since we have passportlocalmongoose ,we will use 'login' method to check user
///// in DB, instead of 'findOne',to fecth DB {
const user = new User({
username: req.body.username,
password: req.body.password
})
req.logIn(user, (err) => {
if (err) { console.log(err) }
else {
passport.authenticate("local")(req, res, () => {
res.redirect("/secrets");
})
}
})
})
app.get("/submit", (req, res) => {
if (req.isAuthenticated()) {
res.render("submit", {});
} else {
res.redirect("/login");
}
})
app.post("/submit", (req, res) => {
if (req.isAuthenticated()) {
User.findOne({ _id: req.user.id }, (err, result) => {
if (err) { console.log(err); }
else {
if (result) {
result.secret = req.body.secret;
result.save(() => {
res.redirect("/secrets");
})
}
}
})
} else {
res.redirect("/login");
}
})
app.listen(process.env.PORT || 3000, () => {
console.log("Server started");
})