libraries/sysinfo.lib.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4  * Library for extracting information about system memory and cpu.
   5  * Currently supports all Windows and Linux platforms
   6  *
   7  * This code is based on the OS Classes from the phpsysinfo project
   8  * (https://phpsysinfo.github.io/phpsysinfo/)
   9  *
  10  * @package PhpMyAdmin-sysinfo
  11  */
  12 if (! defined('PHPMYADMIN')) {
  13     exit;
  14 }
  15
  16 define(
  17     'MEMORY_REGEXP',
  18     '/^(MemTotal|MemFree|Cached|Buffers|SwapCached|SwapTotal|SwapFree):'
  19     . '\s+(.*)\s*kB/im'
  20 );
  21
  22 /**
  23  * Returns OS type used for sysinfo class
  24  *
  25  * @param string $php_os PHP_OS constant
  26  *
  27  * @return string
  28  */
  29 function PMA_getSysInfoOs($php_os = PHP_OS)
  30 {
  31
  32     // look for common UNIX-like systems
  33     $unix_like = array('FreeBSD', 'DragonFly');
  34     if (in_array($php_os, $unix_like)) {
  35         $php_os = 'Linux';
  36     }
  37
  38     return ucfirst($php_os);
  39 }
  40
  41 /**
  42  * Gets sysinfo class mathing current OS
  43  *
  44  * @return \PMA\libraries\SysInfo|mixed sysinfo class
  45  */
  46 function PMA_getSysInfo()
  47 {
  48     $php_os = PMA_getSysInfoOs();
  49     $supported = array('Linux', 'WINNT', 'SunOS');
  50
  51     if (in_array($php_os, $supported)) {
  52         $class_name = 'PMA\libraries\SysInfo' . $php_os;
  53         /** @var \PMA\libraries\SysInfo $ret */
  54         $ret = new $class_name();
  55         if ($ret->supported()) {
  56             return $ret;
  57         }
  58     }
  59
  60     return new \PMA\libraries\SysInfo();
  61 }