Made the Required Changes For Week 4 Express

Procfile

@@ -0,0 +1 @@
+web: node app.js

app.js

@@ -6,11 +6,16 @@ var auth = require("./controllers/auth");
 var store = require("./controllers/store");
 var User = require("./models/user");
 var localStrategy = require("passport-local");
+const flash = require('connect-flash');
+const session = require('express-session');
 //importing the middleware object to use its functions
 var middleware = require("./middleware"); //no need of writing index.js as directory always calls index.js by default
-var port = process.env.PORT || 3000;
+// var port = process.env.PORT || 3000;
 
-app.use(express.static("public"));
+app.use(express.static("public")); 
+
+// passport config
+require('./config/passport')(passport)
 
 /*  CONFIGURE WITH PASSPORT */
 app.use(
@@ -20,13 +25,14 @@ app.use(
     saveUninitialized: false,
   })
 );
-
+// Connect flash
+app.use(flash());
 app.use(passport.initialize()); //middleware that initialises Passport.
 app.use(passport.session());
-passport.use(new localStrategy(User.authenticate())); //used to authenticate User model with passport
 passport.serializeUser(User.serializeUser()); //used to serialize the user for the session
 passport.deserializeUser(User.deserializeUser()); // used to deserialize the user
 
+// app.use(expressLayouts);
 app.use(express.urlencoded({ extended: true })); //parses incoming url encoded data from forms to json objects
 app.set("view engine", "ejs");
 
@@ -37,11 +43,32 @@ app.use(function (req, res, next) {
 });
 
 /* TODO: CONNECT MONGOOSE WITH OUR MONGO DB  */
+// DB Config
+const db = require('./config/keys').mongoURI;
+
+// Connect to MongoDB
+mongoose.connect(db,{ useNewUrlParser: true ,useUnifiedTopology: true})
+  .then(() => console.log('MongoDB Connected'))
+  .catch((err) => console.log('MongoDB Not Connected'));
+
+// Express session
+app.use(
+  session({
+    secret: 'secret',
+    resave: true,
+    saveUninitialized: true
+  })
+);
+
 
 app.get("/", (req, res) => {
   res.render("index", { title: "Library" });
 });
 
+app.get("/errorPage", (req, res) => {
+  res.render("errorPage", { title: "Library" });
+});
+
 /*-----------------Store ROUTES
 TODO: Your task is to complete below controllers in controllers/store.js
 If you need to add any new route add it here and define its controller
@@ -53,15 +80,25 @@ app.get("/books", store.getAllBooks);
 app.get("/book/:id", store.getBook);
 
 app.get("/books/loaned",
-//TODO: call a function from middleware object to check if logged in (use the middleware object imported)
+middleware.isLoggedIn,//TODO: call a function from middleware object to check if logged in (use the middleware object imported)
  store.getLoanedBooks);
 
 app.post("/books/issue", 
-//TODO: call a function from middleware object to check if logged in (use the middleware object imported)
+middleware.isLoggedIn,//TODO: call a function from middleware object to check if logged in (use the middleware object imported)
 store.issueBook);
-
+ 
 app.post("/books/search-book", store.searchBooks);
 
+app.post("/books/return-book", store.returnBooks);
+
+// Global variables
+app.use((req, res, next)=> {
+  res.locals.success_msg = req.flash('success_msg');
+  res.locals.error_msg = req.flash('error_msg');
+  res.locals.error = req.flash('error');
+  next();
+});
+
 /* TODO: WRITE VIEW TO RETURN AN ISSUED BOOK YOURSELF */
 
 /*-----------------AUTH ROUTES
@@ -78,8 +115,17 @@ app.get("/register", auth.getRegister);
 
 app.post("/register", auth.postRegister);
 
+
 app.get("/logout", auth.logout);
 
+// app.use('/', require('./routes/index.js'));
+// app.use('/users', require('./routes/users.js'));
+
+let port = process.env.PORT;
+if (port == null || port == "") {
+  port = 3000;
+}
+
 app.listen(port, () => {
   console.log(`App listening on port ${port}!`);
 });

config/keys.js

@@ -0,0 +1,5 @@
+dbLink='mongodb+srv://Samar1110:[email protected]/?retryWrites=true&w=majority'
+
+module.exports={
+    mongoURI : dbLink
+}

config/passport.js

@@ -0,0 +1,32 @@
+const LocalStrategy = require('passport-local').Strategy;
+
+// Load User model
+const User = require('../models/user');
+
+module.exports = function(passport) {
+  passport.use(
+    new LocalStrategy({ usernameField: 'email' }, (email, password, done) => {
+      // Match user
+      User.findOne({
+        email: email
+      }).then(user => {
+        if (!user) {
+          return done(null, false, { message: 'That email is not registered' });
+        }
+        if(password===user.password)return done(null, user);
+        else return done(null, false, { message: 'Password incorrect' });
+
+      });
+    })
+  );
+
+  passport.serializeUser(function(user, done) {
+    done(null, user.id);
+  });
+
+  passport.deserializeUser(function(id, done) {
+    User.findById(id, function(err, user) {
+      done(err, user);
+    });
+  });
+};

controllers/auth.js

@@ -1,23 +1,76 @@
+
+var User = require("../models/user");
+const passport = require('passport');
+
 var getLogin = (req, res) => {
   //TODO: render login page
+  res.render('login', {title: "Library"});
 };
 
-var postLogin = (req, res) => {
+var postLogin = (req, res,next) => {
   // TODO: authenticate using passport
+  console.log("Hello")
   //On successful authentication, redirect to next page
+  passport.authenticate('local', {
+    successRedirect: '/',
+    failureRedirect: '/login',
+    failureFlash: true
+  })(req, res, next);
 };
 
 var logout = (req, res) => {
   // TODO: write code to logout user and redirect back to the page
+  req.logout();
+  req.flash('success_msg', 'You are Succesfully logged out');
+  res.redirect('/login');
 };
 
 var getRegister = (req, res) => {
   // TODO: render register page
+  res.render('register', {title: "Library"});
 };
-
+ 
 var postRegister = (req, res) => {
   // TODO: Register user to User db using passport
   //On successful authentication, redirect to next page
+  let errors = [];
+  const { username, email, password, password2 } = req.body;
+  console.log(req.body)
+
+  if (password != password2) {
+    errors.push({ msg: 'Both Passwords entered by you does not match' });
+  }
+  if(password.length<7){
+    errors.push({ msg: 'Password length must be greater than 7 characters' });
+  }
+
+
+  if (errors.length > 0) {
+    console.log(errors)
+    res.render('register', {errors,username,email,password,password2,title: "Library"});
+    // console.log('hello')
+
+  }
+  else {
+
+    User.findOne({email : email})
+    .then((user)=>{
+      if(user){
+        errors.push({msg:'This Email already exists, Please use another email to Register yourself in the Library' });
+        res.render('register',{errors,username,email,password,password2,title: "Library"});
+        console.log(errors)
+      }
+      else{
+        // console.log('bye')
+        const newUser = new User({username,email,password});
+        newUser.save()
+        .then(user => {req.flash('success_msg','You are now Successfully Registered in the Library and can Log in');
+         res.redirect('/login');
+         })
+        .catch(err => console.log(err));
+      }
+    })
+  } 
 };
 
 module.exports = {