Changes

Author: HussainArif12

.gitignore

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+node_modules
+package-lock.json

app.js

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+const express = require('express');
+const mongoose = require('mongoose');
+const router = express.Router();
+const app = express();
+const expressEjsLayout = require('express-ejs-layouts')
+const flash = require('connect-flash');
+const session = require('express-session');
+//mongoose
+mongoose.connect('mongodb://localhost/test',{useNewUrlParser: true, useUnifiedTopology : true})
+.then(() => console.log('connected,,'))
+.catch((err)=> console.log(err));
+
+//EJS
+app.set('view engine','ejs');
+app.use(expressEjsLayout);
+//BodyParser
+app.use(express.urlencoded({extended : false}));
+//express session
+app.use(session({
+    secret : 'secret',
+    resave : true,
+    saveUninitialized : true
+}));
+
+app.use(flash());
+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();
+    })
+    
+//Routes
+app.use('/',require('./routes/index'));
+app.use('/users',require('./routes/users'));
+
+app.listen(3000); 

config/auth.js

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+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);
+        })
+    })
+}

models/user.js

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+const mongoose = require('mongoose');
+const UserSchema  = new mongoose.Schema({
+  name :{
+      type  : String,
+      required : true
+  } ,
+  email :{
+    type  : String,
+    required : true
+} ,
+password :{
+    type  : String,
+    required : true
+} ,
+date :{
+    type : Date,
+    default : Date.now
+}
+});
+const User= mongoose.model('User',UserSchema);
+
+module.exports = User;

package.json

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+{
+  "name": "passport-learning",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "devDependencies": {
+    "nodemon": "^2.0.4"
+  },
+  "dependencies": {
+    "bcrypt": "^5.0.0",
+    "connect-flash": "^0.1.1",
+    "ejs": "^3.1.3",
+    "express": "^4.17.1",
+    "express-ejs-layouts": "^2.5.0",
+    "express-session": "^1.17.1",
+    "mongoose": "^5.9.21"
+  }
+}

routes/index.js

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+const express = require('express');
+const router  = express.Router();
+//login page
+router.get('/', (req,res)=>{
+    res.render('welcome');
+})
+//register page
+router.get('/register', (req,res)=>{
+    res.render('register');
+})
+
+module.exports = router; 

routes/users.js

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+const express = require('express');
+const router = express.Router();
+const User = require("../models/user");
+const bcrypt = require('bcrypt');
+//login handle
+router.get('/login',(req,res)=>{
+    res.render('login');
+})
+router.get('/register',(req,res)=>{
+    res.render('register')
+    })
+//Register handle
+router.post('/login',(req,res)=>{
+  })
+  //register post handle
+  router.post('/register',(req,res)=>{
+    const {name,email, password, password2} = req.body;
+    let errors = [];
+    console.log(' Name ' + name+ ' email :' + email+ ' pass:' + password);
+    if(!name || !email || !password || !password2) {
+        errors.push({msg : "Please fill in all fields"})
+    }
+    //check if match
+    if(password !== password2) {
+        errors.push({msg : "passwords dont match"});
+    }
+    
+    //check if password is more than 6 characters
+    if(password.length < 6 ) {
+        errors.push({msg : 'password atleast 6 characters'})
+    }
+    if(errors.length > 0 ) {
+    res.render('register', {
+        errors : errors,
+        name : name,
+        email : email,
+        password : password,
+        password2 : password2})
+     } else {
+        //validation passed
+       User.findOne({email : email}).exec((err,user)=>{
+        console.log(user);   
+        if(user) {
+            errors.push({msg: 'email already registered'});
+            res.render('register',{errors,name,email,password,password2})  
+           } else {
+            const newUser = new User({
+                name : name,
+                email : email,
+                password : password
+            });
+    
+            //hash password
+            bcrypt.genSalt(10,(err,salt)=> 
+            bcrypt.hash(newUser.password,salt,
+                (err,hash)=> {
+                    if(err) throw err;
+                        //save pass to hash
+                        newUser.password = hash;
+                    //save user
+                    newUser.save()
+                    .then((value)=>{
+                        console.log(value)
+                        req.flash('success_msg','You have now registered!');
+                        res.redirect('/users/login');
+                    })
+                    .catch(value=> console.log(value));
+                      
+                }));
+             }
+       })
+    }
+    })
+//logout
+router.get('/logout',(req,res)=>{
+ })
+module.exports  = router;

views/dashboard.ejs

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+<h1>Dashboard</h1>
+<p> Welcome User</p>
+<a href="/users/logout">Logout</a>

views/layout.ejs

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+<html>
+<head>
+<title>Node.Js and Passport App</title>
+</head>
+<body>
+<%- body %> 
+</body>
+</html>

views/login.ejs

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+<h1> Login </h1>
+<%- include ('./partials/messages') %>
+<form action="/users/login" method="POST">
+<div>
+<label for="email">Email</label>
+<input
+type="email"
+name="email"
+placeholder="Enter Email"
+/>
+</div>
+<div>
+    <label for="password">Password</label>
+    <input
+      type="password"
+      name="password"
+      placeholder="Enter Password"
+    />
+  
+</div>
+<button type="submit" class="btn btn-primary btn-block">Login</button>
+   
+</form>