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login.js
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login.js
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var mysql = require('mysql');
var express = require('express');
var session = require('express-session');
var bodyParser = require('body-parser');
var path = require('path');
var nodemailer = require('nodemailer');
//var async = require('async');
var crypto = require('crypto');
const { fileLoader } = require('ejs');
var connection = mysql.createConnection({
host : 'localhost',
user : 'root',
password : '',
database : 'nodelogin'
});
var transporter = nodemailer.createTransport({
service: 'gmail',
auth: {
user: 'graphgenerator2020@gmail.com',
pass: 'generator@2020'
}
});
var app = express();
app.use(session({
secret: 'secret',
resave: true,
saveUninitialized: true
}));
app.use(bodyParser.urlencoded({extended : true}));
app.use(bodyParser.json());
app.get('/', function(request, response) {
response.sendFile(path.join(__dirname + '/register.html'));
});
app.post('/login', function(request, response) {
response.sendFile(path.join(__dirname + '/login.html'));
});
app.get('/forgot-password', function(request, response) {
response.sendFile(path.join(__dirname + '/forgot-password.html'));
});
app.get('/reset', function(request, response) {
response.sendFile(path.join(__dirname + '/reset-password.html'));
});
app.post('/update-password', function(request, response) {
var otp=request.body.otp;
var password=request.body.password;
var sql = "SELECT email FROM my_otp WHERE otp = '"+otp+"'";
connection.query(sql, function (err, results,fields) {
if (results.length > 0) {
email=results[0].email;
var sql = "UPDATE USERS set PASSWORD='"+password+"' where EMAIL='"+email+"'";
connection.query(sql, function (err, results,fields) {
response.redirect('/login');
});
}
else {
response.end("Incorrect OTP");
}
});
});
app.post('/reset-password', function(request, response) {
var email = request.body.email;
var digits='0123456789';
let otp='';
for(let i=0;i<6;i++){
otp+=digits[Math.floor(Math.random()*10)];
}
sql = "DELETE FROM my_otp where email ='"+email+"'";
connection.query(sql, function (err, result) {
if (err) throw err;
console.log("Record deleted.");
});
sql = "INSERT INTO my_otp (EMAIL,OTP) VALUES ('"+email+"','"+otp+"')";
connection.query(sql, function (err, result) {
if (err) throw err;
console.log("1 record inserted.");
});
const mailOptions = {
from: 'graphgenerator2020@gmail.com', // sender address
to: email, // list of receivers
subject: 'Your password reset link. ', // Subject line
text: 'http://localhost:3000/password/'+email+' Please use the otp: '+otp+' to reset the password.'// plain text body
};
transporter.sendMail(mailOptions, function (err, info) {
if(err)
console.log(err)
else
console.log(info);
});
response.redirect('/reset');
response.end();
});
app.post('/register-user', function(request, response) {
var email = request.body.email;
var username = request.body.username;
var password = request.body.password;
var cpassword = request.body.cpassword;
var sql = "SELECT USERNAME FROM USERS WHERE username = '"+username+"'";
connection.query(sql, function (err, results,fields) {
if (results.length > 0) {
//return response.render('',{message:'Username already exists.'});
response.end("Username already exists.");
}
else if(password!==cpassword)
{ response.end("Passwords do not match.");}
else {
sql = "INSERT INTO users (EMAIL,USERNAME,PASSWORD) VALUES ('"+email+"','"+username+"','"+password+"')";
connection.query(sql, function (err, result) {
if (err) throw err;
console.log("1 record inserted");
response.redirect('/login');
});
}
});
//response.sendFile(path.join(__dirname + '/login.html'));
});
app.get('/login', function(request, response) {
response.sendFile(path.join(__dirname + '/login.html'));
});
app.get('/mycss', function(request, response) {
response.sendFile(path.join(__dirname + '/login.css'));
});
app.get('/logo', function(request, response) {
response.sendFile(path.join(__dirname + '/logo1.png'));
});
app.get('/person', function(request, response) {
response.sendFile(path.join(__dirname + '/person.png'));
});
//For authentication of users
app.post('/auth', function(request, response) {
var username = request.body.username;
var password = request.body.password;
if (username && password) {
connection.query('SELECT USERNAME,PASSWORD FROM USERS WHERE username = ? AND password = ?', [username, password], function(error, results, fields) {
if (results.length > 0) {
request.session.loggedin = true;
request.session.username = username;
response.redirect('/home');
} else {
response.send('Incorrect Username and/or Password!');
}
response.end();
});
} else {
response.send('Please enter Username and Password!');
response.end();
}
});
//When user successfully login
app.get('/home', function(request, response) {
if (request.session.loggedin) {
//response.send('Welcome back, ' + request.session.username + '!');
response.redirect('http://localhost:7777/D3/BarChart/html3.html');
} else {
response.send('Please login to view this page!');
}
response.end();
});
//All graph
//1.Line Chart
app.get('/line_chart', function(request, response) {
response.sendFile(path.join(__dirname + '/LineChart/html2.html'));
});
app.get('/pie_chart', function(request, response) {
response.sendFile(path.join(__dirname + '/PieChart/html1.html'));
});
app.get('/doughnut_chart', function(request, response) {
response.sendFile(path.join(__dirname + '/DoughnutChart/html1.html'));
});
app.get('/bar_chart', function(request, response) {
response.sendFile(path.join(__dirname + '/BarChart/html1.html'));
});
app.get('/line_data/:fileName', function(req, response) {
console.log(req.params.fileName);
response.sendFile(path.join(__dirname + '/LineChart/'+req.params.fileName));
});
app.get('/pie_data/:fileName', function(req, response) {
console.log(req.params.fileName);
response.sendFile(path.join(__dirname + '/PieChart/'+req.params.fileName));
});
app.get('/doughnut_data/:fileName', function(req, response) {
console.log(req.params.fileName);
response.sendFile(path.join(__dirname + '/DoughnutChart/'+req.params.fileName));
});
app.get('/barchart_data/:fileName', function(req, response) {
console.log(req.params.fileName);
response.sendFile(path.join(__dirname + '/BarChart/'+req.params.fileName));
});
app.listen(3000);