Matching mail and pass in mongodb node js

Matching mail and pass in mongodb node js - javascript

So, I'm new to all this and was developing a login and registration page. I can easily save the data to the database while registering through registration page, but the problem is I don't know what to do during login page. What type of statements do I have to use to match the entered email address with the email addresses of each document in the "employee" collection, and then check if the password is correctly entered.
Here is my express file main.js:
var express = require("express");
var app = express();
var connection = require("../connection");
module.exports = function(app){
app.get('/', function(req, res){
res.render("login.html");
});
app.get('/adduser', function(req, res){
res.render("login.html");
var name = req.param('name');
var email = req.param('email');
var employeeid = req.param('employeeid');
var password = req.param('password');
var position='';
var joining_date= '';
var active= 'Y';
console.log("Name: " + name + " Email: " + email + "Employee id: " +employeeid);
connection.add(name,email,employeeid,password,position,joining_date,active);
});
//CHECKING IF MAIL AND PASSWORD MATCHES
app.get('/checkuser', function(req, res){
var email = req.param('email');
var password = req.param('password');
console.log(" Email: " + email);
connection.check(email,password);
});
And this is the connection file, connection.js:
var add=function(uname,uemail,uemployeeid,upassword,uposition,ujoining_date,uactive) {
var mongodb = require('mongodb');
var MongoClient = mongodb.MongoClient;
var url = 'mongodb://localhost:27017/HippoFeedo';
MongoClient.connect(url, function (err, db) {
if (err) {
console.log('Unable to connect to the mongoDB server. Error:', err);
}
else {
console.log('Connection established to', url);
// Get the documents collection
var collection = db.collection('employees');
//Create some users
var data = {name:uname,email:uemail,employeeid:uemployeeid,password:upassword,position:uposition,joining_date:ujoining_date,active:uactive };
/* var user2 = {name: 'modulus user', age: 22, roles: ['user']};
var user3 = {name: 'modulus super admin', age: 92, roles: ['super-admin', 'admin', 'moderator', 'user']};*/
// Insert some users
collection.insert(data, function (err, result) {
if (err) {
console.log(err);
} else {
console.log('Inserted %d documents into the "employees" collection. The documents inserted with "_id" are:', result.length, result);
}
db.close();
});
}
});
} //NOW CHECKING IF ENTERED EMAIL AND PASS MATCHES OR EMAIL EXISTS???
var check= function(uemail,upassword)
{
var mongodb = require('mongodb');
var MongoClient = mongodb.MongoClient;
var url = 'mongodb://localhost:27017/HippoFeedo';
MongoClient.connect(url, function (err, db) {
if (err) {
console.log('Unable to connect to the mongoDB server. Error:', err);
}
else {
console.log('Connection established to', url);
var collection = db.collection('employees');
collection.findOne({uemail:uemail}, function(err,doc){ //I HAVE NO IDEA WHAT TO DO HERE??
if(err) throw err;
if(doc)
console.log("Found: "+uemail+", pass=");
else
console.log("Not found: "+uemail);
db.close();
});
}
});
}
module.exports.add=add;
module.exports.check=check;
EDITED: THE FIX FOR THE ABOVE PROBLEM IS PROVIDED BY GMANIC BELOW..

Here is the fix, you are trying to match on uemail but you saved it as email. You could even take it a step further and match on the password at the same time.
exports.check = function(uemail, upassword)
{
var mongodb = require('mongodb');
var MongoClient = mongodb.MongoClient;
var url = 'mongodb://localhost:27017/HippoFeedo';
MongoClient.connect(url, function (err, db) {
if (err) {
console.log('Unable to connect to the mongoDB server. Error:', err);
}
else {
console.log('Connection established to', url);
var collection = db.collection('employees');
collection.findOne({ email: uemail, password: upassword }, function(err, doc){
if(err) throw err;
if(doc) {
console.log("Found: " + uemail + ", pass=" + upassword);
} else {
console.log("Not found: " + uemail);
}
db.close();
});
}
});
}
There are some best practices that you should add in, but to answer your question this should work.

Related

password hashing in nodejs

I am new to StackOverflow, and to the development world. Currently learning JS and node, I am developing a personal project which will be a task management web app. I wrote the register/auth controllers for user data inserts/checks in DB (using MySQL), but ATM I am saving the password in plain text. I want to hash the password and save it in the DB, but when I go look into the table, the passed value is saved as "Object Promise", so it's not currently hashing I think. How can I correctly save the value in registration and validate it in auth? Below is the code of both auth and register controllers. Thanks.
register-controller:
var mysqlConnection = require ('../config');
const bcrypt = require ('bcrypt');
const saltRounds = 10;
module.exports.register=function(req,res){
var today = new Date();
var users={
"firstname":req.body.firstname,
"lastname" : req.body.lastname,
"email":req.body.email,
"password":bcrypt.hash(req.body.password, saltRounds),
"signup_date":today,
"last_login_date":today
}
mysqlConnection.query('SELECT count(email) as count FROM users where email = "' + req.body.email + '"', function (error, results) {
console.log(error, results[0].email);
})
mysqlConnection.query('INSERT INTO users SET ?',users, function (error, results, fields) {
console.log(error, results);
if (error) {
res.json(
error
)
}else{
console.log('User registered succesfully.');
res.redirect('/');
}
});
}
and this is auth-controller:
var mysqlConnection = require ('../config');
const bcrypt = require ('bcrypt');
module.exports.auth = function (req, res, next) {
var email = req.body.email
var password = req.body.password
console.log(email, password);
mysqlConnection.query('SELECT password FROM users where email = "' + email + '"', function (error, results) {
console.log(error, results[0]);
if (error) {
res.error = error;
}else{
if(results.length >0){
bcrypt.compare(password,results[0].password, function (err,res){
if(password === results[0].password){
console.log('User logged in succesfully.');
res.error = error;
res.user = results[0];
res.redirect('/');
}else{
res.error = error;
res.user = null;
}
}
)}
else{
res.error = error;
res.user = null;
res.redirect('/register');
}
}
next();
});
}

How to insert json data into mysql using node js

var express = require('express');
var app=express();
var length;
var affiliate = require('flipkart-affiliate');
var url = require('url');
var moment=require('moment');
var mysql = require('mysql');
var body;
var getUrl;
var product;
var offer;
var offer1;
var offer2;
var offer3;
var test1;
var test2;
var test3;
var title=[];
var description=[];
var startTime=[];
var endTime=[];
var connection = mysql.createConnection({
host: 'localhost',
user: 'root',
password: '',
database: 'coupontest'
});
var client = affiliate.createClient({
FkAffId: 'anandhkum',
FkAffToken: 'eb030998c556443087d3b1a27ac569d0',
responseType: 'json'
});
client.getCategoryFeed({
trackingId: 'anandhkum'
}, function(err, result,getUrl){
if(!err){
body=JSON.parse(result);
getUrl=body.apiGroups.affiliate.apiListings.food_nutrition.availableVariants["v1.1.0"].get;
client.getProductsFeed({
url: getUrl
}, function(err, result){
if(!err){
}else {
console.log(err);
}
});
}
});
connection.connect(function(err) {
if (err) {
return console.error('error: ' + err.message);
}
console.log('Connected to the MySQL server.');
});
app.get('/',function (req,res) {
client.getAllOffers(null,function(err, resp){
if(!err){
offer=JSON.parse(resp);
test1=offer.allOffersList.length;
res.send(offer);
for(var i=0;i<test1;i++){
description[i]=offer.allOffersList[i].description;
startTime[i]=offer.allOffersList[i].startTime;
endTime[i]=offer.allOffersList[i].endTime;
}
var stmt = "INSERT INTO offers (description,start_time,end_time) VALUES ?";
connection.query(stmt, [description,startTime,endTime], function (err, result) {
if (err) throw err.message;
console.log("Number of records inserted: " + result.affectedRows);
});
}
else{
console.log(err);
}
});
});
app.listen(3000);
console.log("Listening to port 3000");
I'm getting the error
throw err; // Rethrow non-MySQL errors
^
ER_PARSE_ERROR: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' 3 ports - multi device charging', 'Universal Voltage', 'Best Price Ever', 'Ext' at line 1

When doing a prepared statement, you need a ? for each of the values you bind. E.g. INSERT INTO offers (description,start_time,end_time) VALUES (?, ?, ?, ?)
It might be worthwhile to take a look at using something like the knex.js module. It uses the mysql module underneath and does the sql binding under the hood.

How to use another MongoDB database using Node.js [duplicate]

How do I connect to mongodb with node.js?
I have the node-mongodb-native driver.
There's apparently 0 documentation.
Is it something like this?
var mongo = require('mongodb/lib/mongodb');
var Db= new mongo.Db( dbname, new mongo.Server( 'mongolab.com', 27017, {}), {});
Where do I put the username and the password?
Also how do I insert something?
Thanks.

Per the source:
After connecting:
Db.authenticate(user, password, function(err, res) {
// callback
});

Everyone should use this source link:
http://mongodb.github.com/node-mongodb-native/contents.html
Answer to the question:
var Db = require('mongodb').Db,
MongoClient = require('mongodb').MongoClient,
Server = require('mongodb').Server,
ReplSetServers = require('mongodb').ReplSetServers,
ObjectID = require('mongodb').ObjectID,
Binary = require('mongodb').Binary,
GridStore = require('mongodb').GridStore,
Code = require('mongodb').Code,
BSON = require('mongodb').pure().BSON,
assert = require('assert');
var db = new Db('integration_tests', new Server("127.0.0.1", 27017,
{auto_reconnect: false, poolSize: 4}), {w:0, native_parser: false});
// Establish connection to db
db.open(function(err, db) {
assert.equal(null, err);
// Add a user to the database
db.addUser('user', 'name', function(err, result) {
assert.equal(null, err);
// Authenticate
db.authenticate('user', 'name', function(err, result) {
assert.equal(true, result);
db.close();
});
});
});

var mongo = require('mongodb');
var MongoClient = mongo.MongoClient;
MongoClient.connect('mongodb://'+DATABASEUSERNAME+':'+DATABASEPASSWORD+'#'+DATABASEHOST+':'DATABASEPORT+'/'+DATABASENAME,function(err, db){
if(err)
console.log(err);
else
{
console.log('Mongo Conn....');
}
});
//for local server
//in local server DBPASSWOAD and DBusername not required
MongoClient.connect('mongodb://'+DATABASEHOST+':'+DATABASEPORT+'/'+DATABASENAME,function(err, db){
if(err)
console.log(err);
else
{
console.log('Mongo Conn....');
}
});

I find using a Mongo url handy. I store the URL in an environment variable and use that to configure servers whilst the development version uses a default url with no password.
The URL has the form:
export MONGODB_DATABASE_URL=mongodb://USERNAME:PASSWORD#DBHOST:DBPORT/DBNAME
Code to connect this way:
var DATABASE_URL = process.env.MONGODB_DATABASE_URL || mongodb.DEFAULT_URL;
mongo_connect(DATABASE_URL, mongodb_server_options,
function(err, db) {
if(db && !err) {
console.log("connected to mongodb" + " " + lobby_db);
}
else if(err) {
console.log("NOT connected to mongodb " + err + " " + lobby_db);
}
});

My version:
var MongoClient = require('mongodb').MongoClient;
MongoClient.connect('mongodb://user:pass#dhost:port/baseName', function(err, db) {
if (err) {
console.error(err);
}
var collection = db.collection('collectionName');
collection.find().toArray(function(err, docs) {
console.log(docs);
});
});

I recommend mongoskin I just created.
var mongo = require('mongoskin');
var db = mongo.db('admin:pass#localhost/mydb?auto_reconnnect');
db.collection('mycollection').find().toArray(function(err, items){
// do something with items
});
Is mongoskin sync? Nop, it is async.

Here is new may to authenticate from "admin" and then switch to your desired DB for further operations:
var MongoClient = require('mongodb').MongoClient;
var Db = require('mongodb').Db, Server = require('mongodb').Server ,
assert = require('assert');
var user = 'user';
var password = 'password';
MongoClient.connect('mongodb://'+user+':'+password+'#localhost:27017/opsdb',{native_parser:true, authSource:'admin'}, function(err,db){
if(err){
console.log("Auth Failed");
return;
}
console.log("Connected");
db.collection("cols").find({loc:{ $eq: null } }, function(err, docs) {
docs.each(function(err, doc) {
if(doc) {
console.log(doc['_id']);
}
});
});
db.close();
});

This worked for me:
Db.admin().authenticate(user, password, function() {} );

You can do it like this
var db = require('mongo-lite').connect('mongodb://localhost/test')
more details ...

if you continue to have problems with the native driver, you can also check out sleepy mongoose. It's a python REST server that you can simply access with node request to get to your Mongo instance.
http://www.snailinaturtleneck.com/blog/2010/02/22/sleepy-mongoose-a-mongodb-rest-interface/

With the link provided by #mattdlockyer as reference, this worked for me:
var mongo = require('mongodb');
var server = new mongo.Server(host, port, options);
db = new mongo.Db(mydb, server, {fsync:true});
db.open(function(err, db) {
if(!err) {
console.log("Connected to database");
db.authenticate(user, password, function(err, res) {
if(!err) {
console.log("Authenticated");
} else {
console.log("Error in authentication.");
console.log(err);
}
});
} else {
console.log("Error in open().");
console.log(err);
};
});
exports.testMongo = function(req, res){
db.collection( mycollection, function(err, collection) {
collection.find().toArray(function(err, items) {
res.send(items);
});
});
};

Slight typo with Chris' answer.
Db.authenticate(user, password, function({ // callback }));
should be
Db.authenticate(user, password, function(){ // callback } );
Also depending on your mongodb configuration, you may need to connect to admin and auth there first before going to a different database. This will be the case if you don't add a user to the database you're trying to access. Then you can auth via admin and then switch db and then read or write at will.

const { MongoClient } = require('mongodb');
// or as an es module:
// import { MongoClient } from 'mongodb'
// Connection URL
const url = 'mongodb://localhost:27017';
const client = new MongoClient(url);
// Database Name
const dbName = 'myProject';
async function main() {
// Use connect method to connect to the server
await client.connect();
console.log('Connected successfully to server');
const db = client.db(dbName);
const collection = db.collection('documents');
// the following code examples can be pasted here...
return 'done.';
}
main()
//what to do next
.then(console.log)
//if there is an error
.catch(console.error)
// what to do in the end(function result won't matter here, it will execute always).
.finally(() => client.close());
you can find more in the documentation here: https://mongodb.github.io/node-mongodb-native/4.1/

I'm using Mongoose to connect to mongodb.
Install mongoose npm using following command
npm install mongoose
var mongoose = require('mongoose');
mongoose.connect('mongodb://localhost:27017/database_name', function(err){
if(err){
console.log('database not connected');
}
});
var Schema = mongoose.Schema;
var userschema = new Schema ({});
var user = mongoose.model('collection_name', userschema);
we can use the queries like this
user.find({},function(err,data){
if(err){
console.log(err);
}
console.log(data);
});

node js express - querying the price field

Im having trouble figuring out how to query the price. My current attempt is not working and im not sure what you have to type in the local host.
http://localhost:3000/priceSearch?
I have implemented - orderSearch.find({price:{$gt:400, $lt: 700}})
the price field in my mongodb is a number not a a string
Thank you:D
Here is my code:
priceSearch.ejs
var express = require('express');
var router = express.Router();
var mongodb = require('mongodb');
var MongoClient = mongodb.MongoClient;
var url = 'mongodb://localhost:27017/WishList';
router.get('/', function (req, res) {
var price = req.query.price;
MongoClient.connect(url, function (err, db) {
if (err) {
console.log("Unable to connect to the server", err);
} else {
console.log("Connection established...");
var orderSearch = db.collection('orders');
// find document who satisify price
orderSearch.find({price:{$gt:400, $lt: 700}}).toArray(function (err, result) {
if (err) {
res.send(err);
} else if (result.length) {
res.render('priceSearch',
{
priceSearch: result,
title: 'Product price search',
}
);
} else {
res.send("No documents found");
}
db.close();
});
}
});
});
module.exports = router;

req.query.price;
i added a stupid var to it

How do I create a new database using the MongoDB Node.JS driver?

How do I programmatically create a database using the MongoDB Node.JS driver?
This looks promising, but I'm not sure how to connect to with the admin credentials and create a new database.
var db = new Db('test', new Server('locahost', 27017));
// Establish connection to db
db.open(function(err, db) {
assert.equal(null, err);
// Add a user to the database
db.addUser('user3', 'name', function(err, result) {
assert.equal(null, err);
// Authenticate
db.authenticate('user3', 'name', function(err, result) {
assert.equal(true, result);
// Logout the db
db.logout(function(err, result) {
assert.equal(true, result);
// Remove the user
db.removeUser('user3', function(err, result) {
assert.equal(true, result);
db.close();
});
});
});
});
});

in mongodb databases and collections are created on first access. When the new user first connects and touches their data, their database will get created then.

This seems to work.
var Db = require('mongodb').Db,
Server = require('mongodb').Server;
var db = new Db('test', new Server('localhost', 27017));
db.open(function (err, db) {
if (err) throw err;
// Use the admin database for the operation
var adminDb = db.admin();
adminDb.authenticate('adminLogin', 'adminPwd', function (err, result) {
db.addUser('userLogin', 'userPwd', function (err, result) {
console.log(err, result);
});
});
});

Try as below:
var adminuser = "admin";
var adminpass = "admin";
var server = "localhost";
var port = 27017;
var dbName = "mydatabase";
var mongodb = require('mongodb');
var mongoClient = mongodb.MongoClient;
var connString = "mongodb://"+adminuser+":"+adminpass+"#"+server+":"+port+"/"+dbName;
mongoClient.connect(connString, function(err, db) {
if(!err) {
console.log("\nMongo DB connected\n");
}
else{
console.log("Mongo DB could not be connected");
process.exit(0);
}
});

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Matching mail and pass in mongodb node js - javascript

Related

password hashing in nodejs

How to insert json data into mysql using node js

How to use another MongoDB database using Node.js [duplicate]

node js express - querying the price field

How do I create a new database using the MongoDB Node.JS driver?

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