SolidScribe/server/models/User.js

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var crypto = require('crypto')
let db = require('@config/database')
let Auth = require('@helpers/Auth')
let User = module.exports = {}
//Login a user, if that user does not exist create them
//Issues login token
User.login = (username, password) => {
return new Promise((resolve, reject) => {
const lowerName = username.toLowerCase();
db.promise()
.query('SELECT * FROM user WHERE username = ? LIMIT 1', [lowerName])
.then((rows, fields) => {
//Pull out user data from database results
const lookedUpUser = rows[0][0];
//User not found, create a new account with set data
if(rows[0].length == 0){
User.create(lowerName, password)
.then(loginToken => {
resolve(loginToken)
})
return
}
//hash the password and check for a match
const salt = new Buffer(lookedUpUser.salt, 'binary')
crypto.pbkdf2(password, salt, lookedUpUser.iterations, 512, 'sha512', function(err, delivered_key){
if(delivered_key.toString('hex') === lookedUpUser.password){
//Passback a json web token
const token = Auth.createToken(lookedUpUser.id)
resolve(token)
} else {
reject('Password does not match database')
}
})
})
.catch(console.log)
})
}
//Create user account
//Issues login token
User.create = (username, password) => {
//For some reason, username won't get into the promise. But password will @TODO figure this out
const lowerName = username.toLowerCase().trim()
return new Promise((resolve, reject) => {
db.promise()
.query('SELECT * FROM user WHERE username = ? LIMIT 1', [lowerName])
.then((rows, fields) => {
if(rows[0].length === 0){ //No users returned, create new one. Start with hashing password
//Params for hash function
let shasum = crypto.createHash('sha512') //Prepare Hash
const ran = parseInt(Date.now()) //Get current time in miliseconds
const semiRandomInt = Math.floor(Math.random()*11) //Grab a random number
const otherRandomInt = (ran*semiRandomInt+ran)*semiRandomInt-ran //Mix things up a bit
shasum.update(''+otherRandomInt) //Update Hasd
const saltString = shasum.digest('hex')
const salt = new Buffer(saltString, 'binary') //Generate Salt hash
const iterations = 25000
crypto.pbkdf2(password, salt, iterations, 512, 'sha512', function(err, delivered_key) {
//Create new user object with freshly salted password
var currentDate = new Date().toISOString().slice(0, 19).replace('T', ' ');
var new_user = {
username: lowerName,
password: delivered_key.toString('hex'),
salt: salt,
iterations: iterations,
last_login: currentDate,
created: currentDate
};
db.promise()
.query('INSERT INTO user SET ?', new_user)
.then((rows, fields) => {
if(rows[0].affectedRows == 1){
const newUserId = rows[0].insertId
const loginToken = Auth.createToken(newUserId)
resolve(loginToken)
} else {
//Emit Error to user
reject('New user could not be created')
}
})
.catch(console.log)
})
} else {
reject('Username already in use.')
}//END user create
})
.catch(console.log)
})
}