Wanted to see how much a bandwidth used between a specific timestamp? Curious about the size of a YouTube video or a System update? If you are the only one using your home router you can get an overall estimate of bandwidth usage using this quick script.
Notes
Needs a web server and PHP and you must have already configured your router for networkinfo.sh file. More info here>
Just create two php files and use index.php
<?php
$startTime = array_sum(explode(' ', microtime()));
header("Cache-Control: no-store, must-revalidate");
?>
<!DOCTYPE html>
<html lang="en">
<head>
<title>Data Calculator</title>
<meta name="viewport" content="user-scalable=yes, initial-scale=1, width=device-width">
<link rel="icon" href="data:;base64,iVBORw0KGgo=">
<link rel="stylesheet" type="text/css" href="/lib/css/dashboard-header.css">
<style>
/* Checkbox */
.box-inpt {
position: absolute;
width: 100px;
height: 2em;
}
.autosave-checkbox {
position: relative;
width: 100%;
height: 100%;
top: 0;
left: 0;
display: block;
opacity: 0;
z-index: 1;
}
.autosave-checkbox:checked + .box-span-inpt .span-input {
transform: translateX(80px);
}
.box-span-inpt {
position: absolute;
top: 0;
left: 5px;
width: 100%;
height: 100%;
border: 2px solid black;
border-radius: 5px;
overflow: hidden;
}
.span-input {
position: absolute;
top: 0;
left: 0;
width: 20px;
height: 2em;
background-color: black;
transition: 0.3s;
}
.span-input::before, .span-input::after {
position: absolute;
top: 0;
text-align: center;
line-height: 2em;
width: 80px;
height: 100%;
font-size: 1em;
color: #ffffff;
font-family: sans-serif;
}
.span-input::before {
content: "ON";
left: -80px;
background-color: #00da00;
}
.span-input::after {
content: "OFF";
right: -80px;
background-color: #ff002f;
}
</style>
</head>
<body>
<div class="header">
<span class="headerlogo">Current Data Calculator</span>
<input class="menu-btn" type="checkbox" id="menu-btn" />
<label class="menu-icon" for="menu-btn"><span class="navicon"></span></label>
<ul class="menu">
<li><a href="/">Home</a></li>
</ul>
</div>
<div class="content">
<div class="card">
<div class="primary-title">
<div class="primary-text">Bandwidth Monitoring</div>
</div>
<div class="supporting-text" style="font-size: 14px; line-height: 14px;">
<span style="line-height: 2.5em;"></span><span class="box-inpt"><input id="subscribeCheckbox" class="autosave-checkbox" type="checkbox" data-id="buzzer"><span class="box-span-inpt"><span class="span-input"></span></span></span>
<br><br><br>
<span class="totaldata"></span><br>
<span class="rxdata"></span><br>
<span class="txdata"></span>
</div>
<hr>
<div class="actions">
<div class="cardfooter"></div>
<div class="cardfooter float-right"><button id="clear-storage-btn">Clear All Data</button></div>
</div>
</div>
<div class="card">
<div class="primary-title">
<div class="primary-text">Probe router</div>
</div>
<div class="supporting-text" style="font-size: 14px; line-height: 14px;">
<button id="loadDataBtn">Probe router</button>
<div id="contentDisplay">Content will appear here...</div>
</div>
<hr>
<div class="actions">
<div class="cardfooter"></div>
<div class="cardfooter float-right"></div>
</div>
</div>
</div>
<script>
localStorage.clear();
document.getElementById("subscribeCheckbox").checked = false;
document.querySelector('.totaldata').innerHTML = "";
document.querySelector('.rxdata').innerHTML = "";
document.querySelector('.txdata').innerHTML = "";
// 1. Select the button and container elements
const button = document.getElementById('loadDataBtn');
const display = document.getElementById('contentDisplay');
// 2. Add the click event listener to the button
button.addEventListener('click', () => {
// 3. Initiate the asynchronous network request
fetch('router.php')
.then(response => {
if (!response.ok) {
throw new Error('Network response failure');
}
return response.json(); // Or response.text() if plaintext
})
.then(data => {
// 4. Update the DOM with the received data
display.innerText = JSON.stringify(data);
})
.catch(error => {
console.error('Error fetching data:', error);
display.innerText = 'Failed to load data.';
});
});
const checkbox = document.getElementById('subscribeCheckbox');
checkbox.addEventListener('change', (event) => {
if (event.target.checked) {
fetch('router.php')
.then(response => {
if (!response.ok) {
throw new Error('Network response failure');
}
return response.json(); // Or response.text() if plaintext
})
.then(data => {
// 4. Update the DOM with the received data
localStorage.setItem('rxStart', data.rx);
localStorage.setItem('txStart', data.tx);
let rxStart = data.rx;
let txStart = data.tx;
})
.catch(error => {
console.error('Error fetching data:', error);
display.innerText = 'Failed to load data.';
});
} else {
fetch('router.php')
.then(response => {
if (!response.ok) {
throw new Error('Network response failure');
}
return response.json(); // Or response.text() if plaintext
})
.then(data => {
// 4. Update the DOM with the received data
localStorage.setItem('rxStop', data.rx);
localStorage.setItem('txStop', data.tx);
rxStart = localStorage.getItem('rxStart');
txStart = localStorage.getItem('txStart');
let rxStop = localStorage.getItem('rxStop');
let txStop = localStorage.getItem('txStop');
let totalRx = rxStop - rxStart;
let totalTx = txStop - txStart;
let totalCombined = totalRx + totalTx;
totalCombined = fileSizeSI(totalCombined);
document.querySelector('.totaldata').innerHTML = "Total Data: <b>"+totalCombined+"</b>";
totalRx = fileSizeSI(totalRx);
document.querySelector('.rxdata').innerHTML = "Rx: <b>"+totalRx+"</b>";
totalTx = fileSizeSI(totalTx);
document.querySelector('.txdata').innerHTML = "Tx: <b>"+totalTx+"</b>";
})
.catch(error => {
console.error('Error fetching data:', error);
});
}
});
// 1. Select the button element
const clearBtn = document.getElementById('clear-storage-btn');
// 2. Add a click event listener
clearBtn.addEventListener('click', () => {
// 3. Clear all localStorage for the current domain
localStorage.clear();
document.getElementById("subscribeCheckbox").checked = false;
document.querySelector('.totaldata').innerHTML = "";
document.querySelector('.rxdata').innerHTML = "";
document.querySelector('.txdata').innerHTML = "";
// 4. (Optional) Refresh the page or update the UI to reflect changes
//location.reload();
});
function fileSizeSI(bytes) {
const exponent = Math.floor(Math.log(bytes) / Math.log(1000.0));
const decimal = (bytes / Math.pow(1000.0, exponent)).toFixed(exponent ? 2 : 0);
if (bytes <= 0) {
return "0 Bytes";
}
return `${decimal} ${exponent ? `${'kMGTPEZY'[exponent - 1]}B` : 'B'}`;
}
var number_of_elements = document.getElementsByClassName('siunits').length;
var i=0;
while (i<number_of_elements) {
var sivalue = document.getElementsByClassName("siunits")[i].innerText;
sivalue = fileSizeSI(sivalue);
document.getElementsByClassName('siunits')[i].textContent = "("+sivalue+")";
i++;
}
</script>
</body>
</html>
Router.php file, change the IP address of your router.
<?php
// Set headers to return JSON response
header('Content-Type: application/json');
$url = 'http://192.168.1.1/cgi-bin/networkinfo.sh';
$json_data = file_get_contents($url, 0, stream_context_create(["http"=>["timeout"=>15]]));
$data_array = json_decode($json_data, true);
if ($data_array === null && json_last_error() !== JSON_ERROR_NONE) {
echo "Error decoding JSON: " . json_last_error_msg();
$response = ["rx" => "No data", "tx" => "No data"];
exit;
} else {
$rx = $data_array['rx_bytes'];
$tx = $data_array['tx_bytes'];
$response = ["rx" => $rx, "tx" => $tx];
}
echo json_encode($response);
?>
Screenshot
Let me know if you have any comments or if there is any error in this guide.