aulaaprende/lib/fastcom.js

Aula @prende 2.0

const jsdom = require("jsdom");
const { JSDOM } = jsdom;
var resultados = [];
var servidores = [];
var maxtest = 2;

exports.speedtest = function(datos, callback) {
	if('maxtest' in datos && !isNaN(datos['maxtest'])) {
		maxtest=datos['maxtest'];
	}
	var request = require('request');
	request('https://fast.com/', function (error, response, body) {
		if(error == null && response && response.statusCode==200) {
			const dom = new JSDOM(body);
			jsfile = dom.window.document.querySelector("script").src;
			request('https://fast.com'+jsfile, function (error, response, body) {
				if(error == null && response && response.statusCode==200) {
					tokenpos = body.search('token:');
					tokenstring = body.substr(tokenpos+7);
					tokenpos = tokenstring.search('"');
					tokenstring = tokenstring.substr(0,tokenpos);
					baseurl = 'http://api.fast.com/'+ 'netflix/speedtest?https=true&token=' + tokenstring + '&urlCount=3';
					request(baseurl, function (error, response, body) {
						if(error == null && response && response.statusCode==200) {
							var datos = JSON.parse(body);
							datos.forEach(function(value, key) {
								servidores.push(value['url']);
							});
							getData(0,1, callback);
						} else {
							console.info("Connection error GS");
						}
					});
				} else {
					console.info("Connection error JS");
				}
			});
		} else {
			console.info("Connection error WP");
			callback({error:1});
		}
	});
}

function getData(server, id, callback) {
	var request = require('request');
	var start = new Date().getTime();
	request(servidores[server], {timeout: 1500}, function (error, response, body) {
		if(error == null && response && response.statusCode==200) {
			var tiempo = (new Date().getTime() - start)/1000;
			var transferido = (Buffer.byteLength(body)*8)/1024/1024;
			var mbps = transferido / tiempo;
			// console.info("transferidos "+transferido);
			// console.info("tiempo transferencia "+tiempo)
			// console.info(mbps + " Mbps");
			resultados.push({servidor: servidores[server], id:id, size: transferido, time: tiempo, speed:mbps})
			if(id<maxtest)
				getData(server, (id+1), callback);
			else if(server<2)
				getData((server+1),1, callback);
			else {
				max = 0;
				min=10000000;
				avg = 0;
				navg = 0;
				resultados.forEach(function(value,key) {
					avg = avg+value['speed'];
					navg++;
					if(value['speed']>max)
						max = value['speed'];
					if(value['speed']<min)
						min = value['speed'];
				});
				avg = avg/navg;
				callback({speeds:{max:max, min:min, avg:avg}, data:resultados});
			}
		} else {
			console.info("Connection error GS ("+server+","+id+")");
			callback({error:1});
		}
	});
}