ngrid-electric-login/index.js

Login to the NGrid Electric website using curl

var fs = require('fs')
var async = require('async')
var rk = require('required-keys');
var getSignInPageData = require('./getSignInPageData')
var submitLogin =  require('./submitLogin')
var validateAuthenticatedCookieData = require('./validateAuthenticatedCookieData')
module.exports = function (data, callback) {
  var keys = ['username', 'password']
  var err = rk.truthySync(data, keys)
  if (err) {
    return callback({
      message: 'error performing login, missing key in data',
      error: err,
      stack: new Error().stack
    })
  }
  var cookiePath
  var viewState, eventValidation
  async.series([
    function(cb) {
      getSignInPageData(function (err, reply) {
        if (err) { return cb(err) }
        viewState = reply.viewState
        eventValidation = reply.eventValidation
        cb()
      })
    },
    function(cb) {
      var loginData = {
        viewState: viewState,
        eventValidation: eventValidation,
        currentLogin: data
      }
      submitLogin(loginData, function (err, cookiePathReply) {
        if (err) { return cb(err) }
        cookiePath = cookiePathReply
        fs.readFile(cookiePath, 'utf8', function (err, cookieData) {
          if (err) {
            return cb({
              message: 'error performing login, failed to read cookie file on disk after submitting login form',
              cookiePath: cookiePath,
              error: err,
              stack: new Error().stack
            })
          }
          var isGoodLogin = validateAuthenticatedCookieData(cookieData)
          if (isGoodLogin) {
            return cb()
          }
          return cb({
            message: 'error performing login',
            cookiePath: cookiePath,
            error: 'cookie is not a valid authenticated cookie, this means submit login post failed and the scraper is not logged in' ,
            stack: new Error().stack
          })

        })
      })
    }
  ], function(err) {
    viewState = eventValidation = null
    callback(err, cookiePath)
  })
}