// defaults
var phpbwmeter_lang = "en";
var phpbwmeter_progress_bar = 0;
// constants
var phpbwmeter_start = 0;
var phpbwmeter_in_progress = 1;
var phpbwmeter_finished = 2;
var phpbwmeter_error = 3;
var phpbwmeter_type_upload = 0;
var phpbwmeter_type_download = 1;
// different languages
var phpbwmeter_translations = new Array;
phpbwmeter_translations["en"] = new Array;
phpbwmeter_translations["en"]["wait"] = "Aguarde...";
phpbwmeter_translations["en"]["start"] = "Calculando...";
phpbwmeter_translations["en"]["error"] = "Error";
phpbwmeter_translations["pl"] = new Array;
phpbwmeter_translations["pl"]["wait"] = "Czeka...";
phpbwmeter_translations["pl"]["start"] = "Pomiar rozpoczety...";
phpbwmeter_translations["pl"]["error"] = "Blad";
// internal
var phpbwmeter_upload_id;
var phpbwmeter_download_id;
var phpbwmeter_progress;
var phpbwmeter_stops;
var phpbwmeter_down_time_start;
var phpbwmeter_up_time_start;
//var phpbwmeter_sugestao_id;
// requests. You may use them to access information about request progress
var phpbwmeter_down_request = new XMLHttpRequest();
var phpbwmeter_up_request = new XMLHttpRequest();
function phpbwmeter_bw(size, time) {
// Convert number of bytes and number of seconds to kilobits per second.
//
// size: number of bytes
// time: time in seconds
Bps = size / time;
kbps = Bps * 8 / 1000;
kbps = Math.round (kbps);
return kbps;
}
function phpbwmeter_upload(url, size, callback) {
// Perform upload bandwidth measurement.
//
// url: URL of phpbwmeter.php file (may be relative)
// size: number of bytes to upload during test, in kilo(1024)bytes
// callback: function to call on events during test.
//
// Callback function takes 4 arguments:
// type: will be set to phpbwmeter_type_upload
// code: one of: phpbwmeter_{start,finished,error}
// x, y: depend on code
//
// Code phpbwmeter_start is used before we upload data, x and y are null.
// Code phpbwmeter_finished is used when test was completed successfuly.
// x is number of bytes uploaded, y is time in seconds.
// Code phpbwmeter_error is used to indicate HTTP error. x contains HTTP
// result code, y is null.
var content = "12345678901234567890123456789012"; // 32 bytes
var i = 0;
for (i = 0; i < 5; i++) {
content = content + content;
} // 1024 bytes
var kilobyte = content;
for (i = 1; i < size; i++) {
content = content + kilobyte;
}
phpbwmeter_up_request.open("POST", url, true);
phpbwmeter_up_request.setRequestHeader("Content-Type",
"application/x-www-form-urlencoded");
phpbwmeter_up_request.onreadystatechange = function() {
var done = 4, ok = 200;
if (phpbwmeter_up_request.readyState == done) {
if (phpbwmeter_up_request.status == ok) {
time = new Date();
phpbwmeter_time_end = time.getTime();
period = phpbwmeter_time_end
- phpbwmeter_up_time_start;
if (period == 0)
period = .1;
period = period / 1000;
callback(phpbwmeter_type_upload,
phpbwmeter_finished,
size * 1024 + 2,
period);
} else {
callback(phpbwmeter_type_upload,
phpbwmeter_error,
phpbwmeter_up_request.status,
null);
}
}
};
callback(phpbwmeter_type_upload, phpbwmeter_start, null, null);
time = new Date();
phpbwmeter_up_time_start = time.getTime();
phpbwmeter_up_request.send("v=" + content);
}
function phpbwmeter_download(url, size, callback) {
// Perform download bandwidth measurement.
//
// url: URL of phpbwmeter.php file (may be relative)
// size: number of bytes to download during test, in kilo(1024)bytes
// callback: function to call on events during test.
//
// Callback function takes 4 arguments:
// type: will be set to phpbwmeter_type_download
// code: one of: phpbwmeter_{start,in_progress,finished,error}
// x, y: depend on code
//
// Code phpbwmeter_start is used when we send download request, x and y
// are null.
// Code phpbwmeter_in_progress is used multiple times during download if
// progress reporting was enabled (phpbwmeter_enable_progress_bar()).
// x is percent of download completed, y is null.
// Code phpbwmeter_finished is used when test was completed successfuly.
// x is number of bytes downloaded, y is time in seconds.
// Code phpbwmeter_error is used to indicate HTTP error. x contains HTTP
// result code, y is null.
phpbwmeter_progress = 0;
phpbwmeter_stops = Math.round(size / 20);
phpbwmeter_down_request.open("GET", url + "?datasize=" + size, true);
phpbwmeter_down_request.setRequestHeader("Content-Type",
"application/x-www-form-urlencoded");
phpbwmeter_down_request.onreadystatechange = function() {
var done = 4, downloading = 3, ok = 200;
if (phpbwmeter_down_request.readyState == done) {
if (phpbwmeter_down_request.status == ok) {
time = new Date();
phpbwmeter_time_end = time.getTime();
period = phpbwmeter_time_end
- phpbwmeter_down_time_start;
if (period == 0)
period = .1;
period = period / 1000;
callback(phpbwmeter_type_download, phpbwmeter_finished,
phpbwmeter_down_request.responseText.length, period);
} else {
callback(phpbwmeter_type_download, phpbwmeter_error,
phpbwmeter_down_request.status, null);
}
} else if (phpbwmeter_down_request.readyState == downloading &&
phpbwmeter_progress_bar) {
phpbwmeter_progress++;
if (phpbwmeter_progress % phpbwmeter_stops == 0) {
callback(phpbwmeter_type_download, phpbwmeter_in_progress,
Math.round(phpbwmeter_down_request.responseText.length
/ (size * 1024) * 100), null);
}
}
};
callback(phpbwmeter_type_download, phpbwmeter_start, null, null);
time = new Date();
phpbwmeter_down_time_start = time.getTime();
phpbwmeter_down_request.send(null);
}
function phpbwmeter_callback(type, code, x, y, z, w) {
// Generic callback to be used with phpbwmeter_{upload,download}
// Updates contents of HTML element with id equal to phpbwmeter_upload_id and
// phpbwmeter_download_id for upload/download respectively.
//
// See phpbwmeter_{upload,download} comments for more information about
// callback arguments.
var element_id;
if (type == phpbwmeter_type_upload)
element_id = phpbwmeter_upload_id;
else
element_id = phpbwmeter_download_id;
if (code == phpbwmeter_start) {
document.getElementById(element_id).innerHTML =
phpbwmeter_translations[phpbwmeter_lang]["start"];
} else if (code == phpbwmeter_in_progress) {
document.getElementById(element_id).innerHTML =
phpbwmeter_translations[phpbwmeter_lang]["start"] + " (" + x + "%)";
} else if (code == phpbwmeter_error) {
document.getElementById(element_id).innerHTML =
phpbwmeter_translations[phpbwmeter_lang]["error"] + ": " + x;
} else {
document.getElementById(element_id).innerHTML =
phpbwmeter_bw(x, y) + " kbps";
// x + "B / " + y + "s = " + phpbwmeter_bw(x, y) + "kbps";
if (parseInt(document.getElementById(phpbwmeter_download_id).innerHTML) >= 300)
{
document.getElementById(phpbwmeter_sugestao_id).innerHTML = "Para um teste mais preciso, de acordo com a velocidade da sua internet, recomendamos o medidor completo.";
}else
{
document.getElementById(phpbwmeter_sugestao_id).innerHTML = "Para um teste mais preciso, de acordo com a velocidade da sua internet, recomendamos o medidor expresso.";
}
}
}
function phpbwmeter_set_lang(lang) {
// Chooses set of strings to use in phpbwmeter_callback.
// Consult list of available translations at the beginning of this file.
phpbwmeter_lang = lang;
}
function phpbwmeter_enable_progress_bar() {
// Enables progress reporting during download test.
phpbwmeter_progress_bar = 1;
}
function phpbwmeter_run(url, size, upload_id, download_id, sugestao_id) {
// Runs download and upload tests sequentially.
//
// url, size: like for phpbwmeter_{upload,download} functions
// upload_id, download_id: id of HTML elements, which content will be updated
// to show test results.
phpbwmeter_upload_id = upload_id;
phpbwmeter_download_id = download_id;
phpbwmeter_sugestao_id = sugestao_id;
document.getElementById(upload_id).innerHTML =
phpbwmeter_translations[phpbwmeter_lang]["wait"];
document.getElementById(download_id).innerHTML =
phpbwmeter_translations[phpbwmeter_lang]["wait"];
document.getElementById(sugestao_id).innerHTML = "";
phpbwmeter_download(url, size, function(a, b, c, d, e){
phpbwmeter_callback(a, b, c, d, e);
if (b == phpbwmeter_finished) {
phpbwmeter_upload(url, size,
phpbwmeter_callback);
}
});
}