0) {
foreach ($data as $line) {
$expl = explode(':', $line);
if (count($expl) == 2) {
// remove " kB" from the end of the string and make it an integer
$meminfo[$expl[0]] = intval(trim(substr($expl[1], 0, -3)));
}
}
$memused = $meminfo['MemTotal'] - $meminfo['MemFree'] - $meminfo['Buffers'] - $meminfo['Cached'];
$memusage = $memused / $meminfo['MemTotal'];
} else {
$memusage = -1;
}
return $memusage;
}
// Try to get temperature value from different places (OS dependent)
// - return an array, containing the temperature and limit.
function getTemperature()
{
global $setupVars;
if (file_exists('/sys/class/thermal/thermal_zone0/temp')) {
$output = rtrim(file_get_contents('/sys/class/thermal/thermal_zone0/temp'));
} elseif (file_exists('/sys/class/hwmon/hwmon0/temp1_input')) {
$output = rtrim(file_get_contents('/sys/class/hwmon/hwmon0/temp1_input'));
} else {
$output = '';
}
// Test if we succeeded in getting the temperature
if (is_numeric($output)) {
// $output could be either 4-5 digits or 2-3, and we only divide by 1000 if it's 4-5
// ex. 39007 vs 39
$celsius = intval($output);
// If celsius is greater than 1 degree and is in the 4-5 digit format
if ($celsius > 1000) {
// Use multiplication to get around the division-by-zero error
$celsius *= 1e-3;
}
// Get user-defined temperature limit if set
if (isset($setupVars['TEMPERATURE_LIMIT'])) {
$limit = intval($setupVars['TEMPERATURE_LIMIT']);
} else {
$limit = 60;
}
} else {
// Nothing can be colder than -273.15 degree Celsius (= 0 Kelvin)
// This is the minimum temperature possible (AKA absolute zero)
$celsius = -273.16;
// Set templimit to null if no tempsensor was found
$limit = null;
}
// Get user-defined temperature limit if set
if (isset($setupVars['TEMPERATUREUNIT'])) {
switch (strtoupper($setupVars['TEMPERATUREUNIT'])) {
case 'F':
case 'K':
$unit = strtoupper($setupVars['TEMPERATUREUNIT']);
break;
default:
$unit = 'C';
}
} else {
// no value is set in setupVars.conf
$unit = '';
}
return array($celsius, $limit, $unit);
}
check_cors();
// Generate CSRF token
if (empty($_SESSION['token'])) {
$_SESSION['token'] = base64_encode(openssl_random_pseudo_bytes(32));
}
$token = $_SESSION['token'];
// For session timer
$maxlifetime = ini_get('session.gc_maxlifetime');
// Get temperature
list($celsius, $temperaturelimit, $temperatureunit) = getTemperature();
// Get CPU load
$loaddata = sys_getloadavg();
foreach ($loaddata as $key => $value) {
$loaddata[$key] = round($value, 2);
}
// Get number of processing units available to PHP
// (may be less than the number of online processors)
$nproc = shell_exec('nproc');
if (!is_numeric($nproc)) {
$cpuinfo = file_get_contents('/proc/cpuinfo');
preg_match_all('/^processor/m', $cpuinfo, $matches);
$nproc = count($matches[0]);
}
// Get memory usage
$memory_usage = getMemUsage();
$piholeFTLConf = piholeFTLConfig();
require 'header.php';
?>
{$token}";
}
?>