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raspap-webgui/ajax/bandwidth/get_bandwidth.php

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<?php
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require '../../includes/csrf.php';
require_once '../../includes/config.php';
$interface = filter_input(INPUT_GET, 'inet', FILTER_SANITIZE_SPECIAL_CHARS);
if (empty($interface)) {
// Use first interface if inet parameter not provided.
exec("ip -o link show | awk -F ': ' '{print $2}' | grep -v lo ", $interfacesWlo);
if (count($interfacesWlo) > 0) {
$interface = $interfacesWlo[0];
} else {
exit('No network interfaces found.');
}
}
define('IFNAMSIZ', 16);
if (strlen($interface) > IFNAMSIZ) {
exit('Interface name too long.');
} elseif(!preg_match('/^[a-zA-Z0-9]+$/', $interface)) {
exit('Invalid interface name.');
}
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require_once './get_bandwidth_hourly.php';
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exec(
sprintf('vnstat -i %s --json ', escapeshellarg($interface)), $jsonstdoutvnstat,
$exitcodedaily
);
if ($exitcodedaily !== 0) {
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exit('vnstat error');
}
$jsonobj = json_decode($jsonstdoutvnstat[0], true);
$timeunits = filter_input(INPUT_GET, 'tu');
if ($timeunits === 'm') {
// months
$jsonData = $jsonobj['interfaces'][0]['traffic']['month'];
} else {
// default: days
$jsonData = $jsonobj['interfaces'][0]['traffic']['day'];
}
$datasizeunits = filter_input(INPUT_GET, 'dsu');
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$dsu_factor = $datasizeunits == "mb" ? 1024 * 1024 : 1024;
header('X-Content-Type-Options: nosniff');
header('Content-Type: application/json');
echo '[ ';
$firstelm = true;
for ($i = count($jsonData) - 1; $i >= 0; --$i) {
if ($timeunits === 'm') {
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$dt = DateTime::createFromFormat(
'Y n', $jsonData[$i]['date']['year'].' '.
$jsonData[$i]['date']['month']
);
} else {
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$dt = DateTime::createFromFormat(
'Y n j', $jsonData[$i]['date']['year'].' '.
$jsonData[$i]['date']['month'].' '.
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$jsonData[$i]['date']['day']
);
}
if ($firstelm) {
$firstelm = false;
} else {
echo ',';
}
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$datasend = round($jsonData[$i]['tx'] / $dsu_factor, 0);
$datareceived = round($jsonData[$i]['rx'] / $dsu_factor, 0);
if ($timeunits === 'm') {
echo '{ "date": "' , $dt->format('Y-m') , '", "rx": "' , $datareceived ,
'", "tx": "' , $datasend , '" }';
} else {
echo '{ "date": "' , $dt->format('Y-m-d') , '", "rx": "' , $datareceived ,
'", "tx": "' , $datasend , '" }';
}
}
echo ' ]';