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app.js
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var express = require('express')
var app = express()
var path = require('path')
var session = require('express-session')
const request = require('request')
//db connection
require('dotenv').config()
var db = require('./config/keys')
var mongoose = require('mongoose')
mongoose.connect(db.mongoDB, {
useNewUrlParser: true,
useUnifiedTopology: true
})
var secretkey = db.secret
//models
var userRegister = require('./models/db-mongoose')
var myques = require('./models/db-ques')
var contactUs = require('./models/db-contact')
var ans = require('./models/db-answers')
var bodyParser = require('body-parser')
var validator = require('validator')
var bcrypt = require('bcryptjs')
var rateLimit = require('express-rate-limit')
var port = process.env.PORT || 80
app.use(session({
secret: 'hello',
resave: true,
saveUninitialized: true
}));
app.use(express.static("static"))
app.use(bodyParser.json())
app.use(bodyParser.urlencoded({
extended: false
}))
const limiter = rateLimit({
windowMs: 15 * 60 * 1000, // 15 minutes
max: 100 // limit each IP to 100 requests per windowMs
})
app.use(limiter)
app.set('view engine', 'hbs')
//function for authorization of user
var auth = function (req, res, next) {
userSession = req.session;
if (req.session.userName) {
return next();
} else
res.render('404');
};
var bodydata
var verifyCaptcha = (req, res, next) => {
bodydata = JSON.parse(req.body.display)
if (!bodydata['recaptcha']) {
return res.json({
status: false
});
}
const token = bodydata['recaptcha'] || req.query['recaptcha'];
const verificationUrl = `https://www.google.com/recaptcha/api/siteverify?secret=${secretkey}&response=${token}&remoteip=${req.connection.remoteAddress}`;
request(verificationUrl, (error, response, body) => {
body = JSON.parse(body);
if (body.success !== undefined && !body.success) {
console.log(body)
return res.json({
status: false
});
}
console.log('abcd')
next();
});
};
//defining global variables
var userSession
var Name
var message1
var newarr = []
var useremail
var rnumber
app.get('/', (req, res) => {
res.render('index', {
message: ""
})
})
app.get('/verify', (req, res) => {
bigError2 = []
bigSuccess = []
var lname = bodydata.email;
var lpass = bodydata.password;
console.log('wwwwwww1')
userRegister.find({
email: lname
}, (err, user) => {
let errors = []
if (err) {
throw err
}
console.log(user)
if (user.length == 0) {
errors.push({
text: 'Email not found!'
})
bigError2 = errors
res.redirect('/index#login')
} else {
console.log(user[0].password)
bcrypt.compare(lpass, user[0].password, function (err, result) {
if (result == false) {
errors.push({
text: 'Invalid password'
})
bigError2 = errors
res.redirect('/index#login')
} else {
Name = user[0].name
message1 = user[0].name
useremail = user[0].email
rnumber=user[0].regno
console.log("message1: " + message1)
req.session.userName = Name
res.redirect('/exam')
}
})
}
})
})
var bigError1 = []
var bigError2 = []
var bigSuccess = []
app.post('/userSignup', (req, res) => {
var uname1 = req.body.first_name;
var uname2 = req.body.last_name;
var uemail = req.body.email;
var phone = req.body.phoneno;
var rno = req.body.regno;
var pass = req.body.password;
bigError1 = []
let errors = []
if (phone.length != 10) {
errors.push({
text: "Invalid phone number"
})
}
if (!validator.isEmail(uemail)) {
errors.push({
text: "Invalid email"
})
}
if (rno.length != 9) {
errors.push({
text: "Invalid registration number!"
})
}
if (rno.length == 9) {
if (rno[1] != 9) {
errors.push({
text: "Only first years can attempt the test!"
})
} else {
var check = /^19[BM][A-Z]{2}[0-9]{4}$/
if (rno.match(check)) {
console.log('true')
} else {
console.log('false')
errors.push({
text: "Invalid registration number"
})
}
}
}
if (errors.length > 0) {
bigError1 = errors
res.redirect('/index#sign-up')
} else {
userRegister.findOne({
regno: rno
}).then((user) => {
if (user) {
errors.push({
text: 'User already exists'
})
bigError1 = errors
res.redirect('/index#sign-up')
} else {
userRegister.findOne({
email:uemail
}).then((user) => {
if (user) {
errors.push({
text: 'User already exists'
})
bigError1 = errors
res.redirect('/index#sign-up')
}
else{
bcrypt.hash(pass, 10, function (err, hash) {
console.log(hash)
if (err) {
throw err
}
var newuser = {
name: uname1 + " " + uname2,
email: uemail,
phone,
regno: rno,
password: hash
}
new userRegister(newuser).save((err, user) => {
if (err) {
throw err;
}
let success = []
if (user) {
bigError1 = []
success.push({
text: 'Registered successfully! You can sign in now.'
})
bigSuccess = success
res.redirect('/index#login')
}
})
})
}
})
}
})
}
})
app.post('/userlogin', verifyCaptcha, (req, res) => {
userSession = req.session
var bodydata = JSON.parse(req.body.display)
res.redirect('/verify')
})
var mymsg = undefined
app.post('/contact', (req, res) => {
console.log(message1)
console.log(useremail)
const newmsg = {
name: req.body.name,
email: req.body.email,
message: req.body.message,
date: new Date
}
new contactUs(newmsg).save((err, data) => {
if (err) {
throw err
}
console.log('message sent')
mymsg = 'Thanks for reaching out to us. We will get back to you soon!'
res.redirect('/index#contact')
})
})
app.get('/index', function (req, res) {
res.render('index', {
errors1: bigError1,
errors2: bigError2,
success: bigSuccess,
msgsent: mymsg
})
})
app.get('/exam', auth, function (req, res) {
res.render('exam', {
msg: message1
})
})
app.get('/tech', auth, function (req, res) {
res.render('tech', {
msg: message1
})
})
app.get('/manage', auth, function (req, res) {
res.render('manag', {
msg: message1
})
})
var message2 = ""
app.get('/addQues', function (req, res) {
res.render('add-ques', {
msg: 'Admin',
msg2: message2
})
})
app.get('/viewSub', function (req, res) {
res.render('view-sub', {
msg: 'Admin',
})
})
app.get('/Akshat_Is_Awesome', function (req, res) {
message2 = ""
res.render('Akshat_Is_Awesome', {
msg: 'Admin',
})
})
app.get('/Nautanki', function (req, res) {
message2 = ""
res.render('Nautanki', {
msg: 'Admin',
})
})
app.get('/logout', auth, function (req, res) {
userSession = req.session;
Name = undefined
req.session.destroy(function (err) {
if (err) {
throw err;
} else {
console.log("Session is destroyed, You are redirected to the login page.");
res.render('index', {
layout: false,
message: " "
})
}
})
})
app.get('/adminlogout', function (req, res) {
res.render('index', {
message: " "
})
})
app.post('/storeResponse', (req, res) => {
var data = JSON.parse(req.body.display)
var i
var arr = []
for (i = 0; i < data.response.length; i++) {
var obj = {
ques: data.response[i].ques,
answer: data.response[i].answer
}
arr.push(obj)
}
var newobj = {
name: message1,
email: useremail,
regno:rnumber,
date:new Date(),
domain: data.domain,
title: data.title,
response: arr
}
console.log(newobj)
var resp = new ans(newobj)
resp.save(() => {
console.log('response added')
})
res.redirect('/exam')
})
app.post('/addq', (req, res) => {
var data = JSON.parse(req.body.display)
var newobj = {
domain: data.domain,
title: data.title,
ques: data.ques
}
console.log(data)
var newques = new myques(newobj)
newques.save(() => {
console.log(newques)
})
message2 = "Question Added Successfully"
res.redirect('/addQues')
})
app.post('/submissions', (req, res) => {
var data = JSON.parse(req.body.display)
console.log(data)
ans.find({
domain: data.domain,
title: data.title
}, (err, responses) => {
if (err) {
throw err
}
newarr = responses
res.redirect('/success')
})
})
app.get('/success', (req, res) => {
console.log(newarr)
res.render('response', {
arr: newarr,
msg: 'Admin'
})
})
// app.get('/complete', (req, res) => {
// res.render('complete')
// })
app.get('/webexam', function (err, res) {
ans.find({
regno:rnumber,
domain: 'Technical'
}, (err, manyuser) => {
if (err) {
throw err
}
if (manyuser.length == 2 && manyuser[0].title!=manyuser[1].title) {
let errors = []
errors.push({
text: 'You cannot attempt more than 2 subdomains in technical domain!'
})
res.render('exam', {
msg: message1,
errors: errors
})
} else {
ans.findOne({
regno: rnumber,
title: 'Frontend Web Development'
}, (err, user) => {
let errors = []
if (user) {
errors.push({
text: 'You have already attempted this test!'
})
res.render('exam', {
msg: message1,
errors: errors
})
} else {
myques.find({
title: 'Frontend Web Development'
}, (err, userTest) => {
if (userTest.length == 0 || userTest.length != 18) {
res.render('no_ques', {
noques: 'Questions are yet to be added.'
})
} else {
var n = userTest.length
var arr = []
var store = []
var jugaad = []
l = []
ctr = 0
while (ctr != 10) {
x = Math.floor(Math.random() * n)
if (l.includes(x) == false) {
l.push(x)
ctr = ctr + 1
}
}
for (i = 0; i < 10; i++) {
if (userTest[l[i]].ques.includes("$")) {
var str = userTest[l[i]].ques
jugaad.push(str)
var s = str.split("$")
store.push({
data: s
})
} else {
var value = userTest[l[i]].ques
arr.push(value)
}
}
res.render('mcq', {
title: 'Frontend Web Development',
dom: 'Technical',
ques: arr,
mques: store,
jugaad,
name: message1
})
}
})
}
})
}
})
})
app.get('/webexambackend', function (err, res) {
ans.find({
regno:rnumber,
domain: 'Technical'
}, (err, manyuser) => {
if (err) {
throw err
}
if (manyuser.length == 2 && manyuser[0].title!=manyuser[1].title) {
let errors = []
errors.push({
text: 'You cannot attempt more than 2 subdomains in technical domain!'
})
res.render('exam', {
msg: message1,
errors: errors
})
} else {
ans.findOne({
regno: rnumber,
title: 'Backend Web Development'
}, (err, user) => {
let errors = []
if (user) {
errors.push({
text: 'You have already attempted this test!'
})
res.render('exam', {
msg: message1,
errors: errors
})
} else {
myques.find({
title: 'Backend Web Development'
}, (err, userTest) => {
if (userTest.length == 0 || userTest.length != 13) {
res.render('no_ques', {
noques: 'Questions are yet to be added.'
})
} else {
var n = userTest.length
var store = []
var arr = []
var jugaad = []
l = []
ctr = 0
while (ctr != 10) {
x = Math.floor(Math.random() * n)
if (l.includes(x) == false) {
l.push(x)
ctr = ctr + 1
}
}
for (i = 0; i < 10; i++) {
if (userTest[l[i]].ques.includes("$")) {
var str = userTest[l[i]].ques
jugaad.push(str)
var s = str.split("$")
store.push({
data: s
})
} else {
var value = userTest[l[i]].ques
arr.push(value)
}
}
res.render('mcq', {
title: 'Backend Web Development',
dom: 'Technical',
ques: arr,
jugaad,
mques: store,
name: message1
})
}
})
}
})
}
})
})
app.get('/comcodexam', auth, function (err, res) {
ans.find({
regno:rnumber,
domain: 'Technical'
}, (err, manyuser) => {
if (err) {
throw err
}
if (manyuser.length == 2 && manyuser[0].title!=manyuser[1].title) {
let errors = []
errors.push({
text: 'You cannot attempt more than 2 subdomains in technical domain!'
})
res.render('exam', {
msg: message1,
errors: errors
})
} else {
ans.findOne({
regno: rnumber,
title: 'Competitive Coding'
}, (err, user) => {
let errors = []
if (user) {
errors.push({
text: 'You have already attempted this test!'
})
res.render('exam', {
msg: message1,
errors: errors
})
} else {
myques.find({
title: 'Competitive Coding'
}, (err, userTest) => {
if (userTest.length == 0 || userTest.length != 10) {
res.render('no_ques', {
noques: 'Questions are yet to be added.'
})
} else {
var n = userTest.length
var arr = []
var store = []
var jugaad = []
//var store9=[]
l = []
ctr = 0
while (ctr != 10) {
x = Math.floor(Math.random() * n)
if (l.includes(x) == false) {
l.push(x)
ctr = ctr + 1
}
}
for (i = 0; i < 10; i++) {
if (userTest[l[i]].ques.includes("$")) {
var str = userTest[l[i]].ques
jugaad.push(str)
var s = str.split("$")
store.push({
data: s
})
} else {
var value = userTest[l[i]].ques
arr.push(value)
}
}
res.render('mcq', {
title: 'Competitive Coding',
dom: 'Technical',
ques: arr,
mques: store,
jugaad,
name: message1
})
}
})
}
})
}
})
})
app.get('/mlaiexam', auth, function (err, res) {
ans.find({
regno:rnumber,
domain: 'Technical'
}, (err, manyuser) => {
if (err) {
throw err
}
if (manyuser.length == 2 && manyuser[0].title!=manyuser[1].title) {
let errors = []
errors.push({
text: 'You cannot attempt more than 2 subdomains in technical domain!'
})
res.render('exam', {
msg: message1,
errors: errors
})
} else {
ans.findOne({
regno: rnumber,
title: 'Machine Learning'
}, (err, user) => {
let errors = []
if (user) {
errors.push({
text: 'You have already attempted this test!'
})
res.render('exam', {
msg: message1,
errors: errors
})
} else {
myques.find({
title: 'Machine Learning'
}, (err, userTest1) => {
if (userTest1.length == 0 || userTest1.length != 13) {
res.render('no_ques', {
noques: 'Questions are yet to be added.'
})
} else {
var n = userTest1.length
var arr = []
var store = []
var jugaad = []
l = []
ctr1 = 0
while (ctr1 != 10) {
x = Math.floor(Math.random() * n)
if (l.includes(x) == false) {
l.push(x)
ctr1 = ctr1 + 1
}
}
for (i = 0; i < 10; i++) {
if (userTest1[l[i]].ques.includes("$")) {
var str = userTest1[l[i]].ques
jugaad.push(str)
var s = str.split("$")
store.push({
data: s
})
} else {
var value = userTest1[l[i]].ques
arr.push(value)
}
}
res.render('mcq', {
title: 'Machine Learning & Artificial Intelligence',
dom: 'Technical',
ques: arr,
mques: store,
jugaad,
name: message1
})
}
})
}
})
}
})
})
app.get('/appexam', auth, function (err, res) {
ans.find({
regno:rnumber,
domain: 'Technical'
}, (err, manyuser) => {
if (err) {
throw err
}
if (manyuser.length == 2 && manyuser[0].title!=manyuser[1].title) {
let errors = []
errors.push({
text: 'You cannot attempt more than 2 subdomains in technical domain!'
})
res.render('exam', {
msg: message1,
errors: errors
})
} else {
ans.findOne({
regno: rnumber,
title: 'App Development'
}, (err, user) => {
let errors = []
if (user) {
errors.push({
text: 'You have already attempted this test!'
})
res.render('exam', {
msg: message1,
errors: errors
})
} else {
myques.find({
title: 'App Development'
}, (err, userTest1) => {
if (userTest1.length == 0 || userTest1.length != 13) {
res.render('no_ques', {
noques: 'Questions are yet to be added.'
})
} else {
var n = userTest1.length
var arr = []
var store = []
var jugaad = []
l = []
ctr1 = 0
while (ctr1 != 10) {
x = Math.floor(Math.random() * n)
if (l.includes(x) == false) {
l.push(x)
ctr1 = ctr1 + 1
}
}
for (i = 0; i < 10; i++) {
if (userTest1[l[i]].ques.includes("$")) {
var str = userTest1[l[i]].ques
jugaad.push(str)
var s = str.split("$")
store.push({
data: s
})
} else {
var value = userTest1[l[i]].ques
arr.push(value)
}
}
res.render('mcq', {
title: 'App Development',
dom: 'Technical',
ques: arr,
mques: store,
jugaad,
name: message1
})
}
})
}
})
}
})
})
app.get('/opexam', auth, function (err, res) {
ans.findOne({
regno: rnumber,
title: 'Operations'
}, (err, user) => {
let errors = []
if (user) {
errors.push({
text: 'You have already attempted this test!'
})
res.render('exam', {
msg: message1,
errors: errors
})
} else {
myques.find({
title: 'Operations'
}, (err, userTest) => {
if (userTest.length == 0 || userTest.length != 8) {
res.render('no_ques', {
noques: 'Questions are yet to be added.'
})
} else {
var n = userTest.length
var arr = []
var store = []
var jugaad = []
l = []
ctr = 0
while (ctr != 8) {
x = Math.floor(Math.random() * n)
if (l.includes(x) == false) {
l.push(x)
ctr = ctr + 1
}
}
for (i = 0; i < 8; i++) {
if (userTest[l[i]].ques.includes("$")) {
var str = userTest[l[i]].ques
jugaad.push(str)
var s = str.split("$")
store.push({
data: s
})
} else {
var value = userTest[l[i]].ques
arr.push(value)
}
}
res.render('mcq', {
title: 'Operations',
dom: 'Management',
ques: arr,
mques: store,
jugaad,
name: message1
})
}
})
}
})
})
app.get('/sponsexam', auth, function (err, res) {
ans.findOne({
regno: rnumber,
title: 'Sponsorship'
}, (err, user) => {
let errors = []
if (user) {
errors.push({
text: 'You have already attempted this test!'
})
res.render('exam', {
msg: message1,
errors: errors
})
} else {
myques.find({
title: 'Sponsorship'
}, (err, userTest) => {
if (userTest.length == 0 || userTest.length != 5) {
res.render('no_ques', {
noques: 'Questions are yet to be added.'
})
} else {
var n = userTest.length
var arr = []
l = []
var jugaad = []
var store = []
ctr = 0
while (ctr != 5) {
x = Math.floor(Math.random() * n)
if (l.includes(x) == false) {