Added changes

Author: HussainArif12

app.js

@@ -5,6 +5,10 @@ const app = express();
 const expressEjsLayout = require('express-ejs-layouts')
 const flash = require('connect-flash');
 const session = require('express-session');
+const passport = require("passport");
+
+//passport config:
+require('./config/passport')(passport)
 //mongoose
 mongoose.connect('mongodb://localhost/test',{useNewUrlParser: true, useUnifiedTopology : true})
 .then(() => console.log('connected,,'))
@@ -21,7 +25,8 @@ app.use(session({
     resave : true,
     saveUninitialized : true
 }));
-
+app.use(passport.initialize());
+app.use(passport.session());
 app.use(flash());
 app.use((req,res,next)=> {
     res.locals.success_msg = req.flash('success_msg');

config/auth.js

@@ -1,35 +1,9 @@
-const User = require('../models/user');
-const LocalStrategy = require('passport-local').Strategy;
-const bcrypt = require('bcrypt');
-
-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:'email not registered'});
-                }
-                //math passwords
-                bcrypt.compare(password,user.password,(err,isMatch)=>{
-                    if(err) throw err;
-                    if(isMatch){
-                        return done(null,user);
-                    } else{
-                        return done(null,false,{message: 'password incorrect'});
-                    }
-                })
-            })
-            .catch((err)=>{console.log(err)})
-        })
-    )
-    passport.serializeUser(function(user,done) {
-        done(null,user.id);
-    })
-    passport.deserializeUser(function(id,done){
-        User.findById(id,function(err,user){
-            done(err,user);
-        })
-    })
+module.exports = {
+    ensureAuthenticated : function(req,res,next) {
+        if(req.isAuthenticated()) {
+            return next();
+        }
+        req.flash('error_msg' , 'please login to view this resource');
+        res.redirect('/users/login');
+    }
 }

config/passport.js

@@ -0,0 +1,35 @@
+const User = require('../models/user');
+const LocalStrategy = require('passport-local').Strategy;
+const bcrypt = require('bcrypt');
+
+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:'email not registered'});
+                }
+                //math passwords
+                bcrypt.compare(password,user.password,(err,isMatch)=>{
+                    if(err) throw err;
+                    if(isMatch){
+                        return done(null,user);
+                    } else{
+                        return done(null,false,{message: 'password incorrect'});
+                    }
+                })
+            })
+            .catch((err)=>{console.log(err)})
+        })
+    )
+    passport.serializeUser(function(user,done) {
+        done(null,user.id);
+    })
+    passport.deserializeUser(function(id,done){
+        User.findById(id,function(err,user){
+            done(err,user);
+        })
+    })
+}

package.json

@@ -19,6 +19,8 @@
     "express": "^4.17.1",
     "express-ejs-layouts": "^2.5.0",
     "express-session": "^1.17.1",
-    "mongoose": "^5.9.21"
+    "mongoose": "^5.9.21",
+    "passport": "^0.4.1",
+    "passport-local": "^1.0.0"
   }
 }

routes/index.js

@@ -1,5 +1,6 @@
 const express = require('express');
 const router  = express.Router();
+const {ensureAuthenticated} = require('../config/auth') 
 //login page
 router.get('/', (req,res)=>{
     res.render('welcome');
@@ -8,5 +9,9 @@ router.get('/', (req,res)=>{
 router.get('/register', (req,res)=>{
     res.render('register');
 })
-
+router.get('/dashboard',ensureAuthenticated,(req,res)=>{
+    res.render('dashboard',{
+        user: req.user
+    });
+})
 module.exports = router; 

routes/users.js

@@ -2,6 +2,7 @@ const express = require('express');
 const router = express.Router();
 const User = require("../models/user");
 const bcrypt = require('bcrypt');
+const passport = require('passport');
 //login handle
 router.get('/login',(req,res)=>{
     res.render('login');
@@ -10,8 +11,13 @@ router.get('/register',(req,res)=>{
     res.render('register')
     })
 //Register handle
-router.post('/login',(req,res)=>{
-  })
+router.post('/login',(req,res,next)=>{
+passport.authenticate('local',{
+    successRedirect : '/dashboard',
+    failureRedirect: '/users/login',
+    failureFlash : true
+})(req,res,next)
+})
   //register post handle
   router.post('/register',(req,res)=>{
     const {name,email, password, password2} = req.body;
@@ -73,5 +79,8 @@ router.post('/login',(req,res)=>{
     })
 //logout
 router.get('/logout',(req,res)=>{
- })
+req.logout();
+req.flash('success_msg','Now logged out');
+res.redirect('/users/login'); 
+})
 module.exports  = router;

views/dashboard.ejs

@@ -1,3 +1,3 @@
 <h1>Dashboard</h1>
-<p> Welcome User</p>
+<p> Welcome <%= user.name %></p>
 <a href="/users/logout">Logout</a>

views/partials/messages.ejs

@@ -5,6 +5,12 @@
 <% } %>
 
 <% if(success_msg!= '') { %>
-<p><%=success_msg %> </p>
+        <p><%=success_msg %> </p>
+      <% } %>
+
+<% if(error_msg != '') { %>
+      <p><%= error_msg %></p> 
       <% } %> 
-      
+<% if(error != '') { %>
+       <p><%= error %> </p>
+      <% } %>