geartrack/src/correosTracker.js

Tracking providers for Gearbest and AliExpress Orders.

'use strict';

const request = require('request')
const parser = require('cheerio')
const utils = require('./utils')
const moment = require('moment-timezone')
const zone = "Europe/Madrid" // +1h

const URL = 'https://s.correosexpress.com/search'

const correos = {}

/**
 * Get correos info
 * Scraps the Correos Express website
 * Async
 *
 * Design changes may break this code!!
 * @param id
 * @param callback(Error, CorreosInfo)
 */
correos.getInfo = function (id, callback) {
    obtainInfo(URL, id, callback)
}

/**
 * Get info from correos page
 *
 * @param action
 * @param id
 * @param postalcode
 * @param cb
 */
function obtainInfo(action, id, cb) {
    request.post({
        url: action,
        form: {
            shippingNumber: id
        },
        timeout: 10000
    }, function (error, response, body) {
        if (error || response.statusCode != 200) {
            cb(utils.errorDown())
            return
        }

        // Not found
        if (body.indexOf('errorMessage') != -1) {
            cb(utils.errorNoData())
            return
        }

        let entity = null
        try {
            entity = createCorreosEntity(body)
            entity.retries = response.attempts
        } catch (error) {
            return cb(utils.errorParser(id, error.message))
        }

        cb(null, entity)
    })
}

/**
 * Create correos entity from html
 * @param html
 */
function createCorreosEntity(html) {
    let $ = parser.load(html)

    var id = $('.shipping span').get(0).children[0].data.trim()
    var state = $('.status').get(0).children[2].data.trim()
    var state2 = ""
    try {
        state2 = $('.status-desc .status-message').get(0).children[0].data.trim()
    } catch (e) {
        // sometimes there is no state2
    }

    var deliveryDate = $('.status').get(0).children[4]
    if (deliveryDate !== undefined) {
        deliveryDate = deliveryDate.data.trim()
        deliveryDate = deliveryDate.substring(deliveryDate.indexOf(',') + 1)
        deliveryDate = getDeliveryDate(deliveryDate.trim())
    }

    var origin = $('.origin').get(0).children[0].data.trim()
    var destiny = $('.destiny').get(0).children[0].data.trim()
    origin = origin.substring(origin.indexOf(':') + 1).trim()
    destiny = destiny.substring(destiny.indexOf(':') + 1).trim()

    let states = utils.tableParser(
        $('table tbody tr'),
        {
            'date': {
                'idx': 1, 'mandatory': true, 'parser': elem => {
                    return moment.tz(elem, ', DD/MM/YYYY HH:mm', 'es', zone).format()
                }
            },
            'state': {'idx': 5, 'mandatory': true},
            'area': {'idx': 3}
        },
        elem => true)

    return new CorreosInfo({
        id: id,
        state: state.replace('.', ''),
        state2: state2.replace('.', ''),
        origin: origin,
        destiny: destiny,
        deliveryDate: deliveryDate,
        states: states
    })
}

function getDeliveryDate(date) {
    var monthsShort = 'ene_feb_mar_abr_may_jun_jul_ago_sep_oct_nov_dic'.split('_');

    let d = date.split(' ')

    let monthNumber = monthsShort.indexOf(d[1].toLowerCase()) + 1

    if (monthNumber < 10)
        monthNumber = '0' + monthNumber

    let newDate = d[0] + '/' + monthNumber + '/' + d[2]
    return moment(newDate, 'DD/MM/YYYY').format()
}

/*
 |--------------------------------------------------------------------------
 | Entity
 |--------------------------------------------------------------------------
 */
function CorreosInfo(obj) {
    this.id = obj.id
    this.state = obj.state
    this.state2 = obj.state2
    this.deliveryDate = obj.deliveryDate
    this.states = obj.states.reverse()
    this.origin = obj.origin
    this.destiny = obj.destiny
    this.trackerWebsite = correos.getLink(null)
}

correos.getLink = function (id) {
    return "https://s.correosexpress.com"
}

module.exports = correos