ezservermonitor-web/libs/Utils/Misc.php
ShevAbam 9970343fe5 General : cleaning and optimizing CSS
General : responsive design
General : reload button now spins when you reload block
General : update jQuery plugin Knob to 1.2.11
General : optimizing security (config file esm.config.json is now in the conf/ folder with an htaccess)
CPU : retrieves correctly CPU frequency for Raspberry Pi
CPU : add CPU temperature (+ option to enable/disable)
System : little correction for getting distro name
Swap : fix if swap is disabled
Services status : adds protocol TCP or UDP for checking service status
Services status : new option to hide port number (see show_port in services section)
2015-07-07 15:57:41 +02:00

164 lines
4.0 KiB
PHP

<?php
class Misc
{
/**
* Returns human size
*
* @param float $filesize File size
* @param int $precision Number of decimals
* @return string Human size
*/
public static function getSize($filesize, $precision = 2)
{
$units = array('', 'K', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y');
foreach ($units as $idUnit => $unit)
{
if ($filesize > 1024)
$filesize /= 1024;
else
break;
}
return round($filesize, $precision).' '.$units[$idUnit].'B';
}
/**
* Returns hostname
*
* @return string Hostname
*/
public static function getHostname()
{
return php_uname('n');
}
/**
* Returns CPU cores number
*
* @return int Number of cores
*/
public static function getCpuCoresNumber()
{
if (!($num_cores = shell_exec('/bin/grep -c ^processor /proc/cpuinfo')))
{
if (!($num_cores = trim(shell_exec('/usr/bin/nproc'))))
{
$num_cores = 1;
}
}
if ((int)$num_cores <= 0)
$num_cores = 1;
return (int)$num_cores;
}
/**
* Returns server IP
*
* @return string Server local IP
*/
public static function getLanIp()
{
return $_SERVER['SERVER_ADDR'];
}
/**
* Returns a command that exists in the system among $cmds
*
* @param array $cmds List of commands
* @param string $args List of arguments (optional)
* @param bool $returnWithArgs If true, returns command with the arguments
* @return string Command
*/
public static function whichCommand($cmds, $args = '', $returnWithArgs = true)
{
$return = '';
foreach ($cmds as $cmd)
{
if (trim(shell_exec($cmd.$args)) != '')
{
$return = $cmd;
if ($returnWithArgs)
$return .= $args;
break;
}
}
return $return;
}
/**
* Allows to pluralize a word based on a number
* Ex : echo 'mot'.Misc::pluralize(5); ==> prints mots
* Ex : echo 'cheva'.Misc::pluralize(5, 'ux', 'l'); ==> prints chevaux
* Ex : echo 'cheva'.Misc::pluralize(1, 'ux', 'l'); ==> prints cheval
*
* @param int $nb Number
* @param string $plural String for plural word
* @param string $singular String for singular word
* @return string String pluralized
*/
public static function pluralize($nb, $plural = 's', $singular = '')
{
return $nb > 1 ? $plural : $singular;
}
/**
* Checks if a port is open (TCP or UPD)
*
* @param string $host Host to check
* @param int $port Port number
* @param string $protocol tcp or udp
* @param integer $timeout Timeout
* @return bool True if the port is open else false
*/
public static function scanPort($host, $port, $protocol = 'tcp', $timeout = 3)
{
if ($protocol == 'tcp')
{
$handle = @fsockopen($host, $port, $errno, $errstr, $timeout);
if ($handle)
return true;
else
return false;
}
elseif ($protocol == 'udp')
{
$handle = @fsockopen('udp://'.$host, $port, $errno, $errstr, $timeout);
socket_set_timeout($handle, $timeout);
$write = fwrite($handle, 'x00');
$startTime = time();
$header = fread($handle, 1);
$endTime = time();
$timeDiff = $endTime - $startTime;
fclose($handle);
if ($timeDiff >= $timeout)
return true;
else
return false;
}
return false;
}
}