Current File : /www/varak.net/paste.varak.net-5.6/app/lib/System.php
<?php namespace StickyNotes;
/**
* Sticky Notes
*
* An open source lightweight pastebin application
*
* @package StickyNotes
* @author Sayak Banerjee
* @copyright (c) 2014 Sayak Banerjee <mail@sayakbanerjee.com>
* @license http://www.opensource.org/licenses/bsd-license.php
* @link http://sayakbanerjee.com/sticky-notes
* @since Version 1.0
* @filesource
*/
use File;
use Lang;
use Request;
use Requests;
use Requests_Exception;
use Route;
use Schema;
use Site;
use URL;
/**
* System class
*
* Provides system information to views and controllers.
*
* @package StickyNotes
* @subpackage Libraries
* @author Sayak Banerjee
*/
class System {
/**
* Caches the current route
*
* @var string
*/
private static $route = NULL;
/**
* Defines whether the system is in an error state
*
* @var bool
*/
private static $errorState = FALSE;
/**
* Retrieves a list of directory names from a given path
*
* @static
* @param string $path
* @param bool $csv
* @return array|string
*/
public static function directories($path, $csv = FALSE)
{
$list = array();
$items = scandir(app_path()."/{$path}");
foreach ($items as $item)
{
if ( ! starts_with($item, '.'))
{
$list[$item] = $item;
}
}
if ($csv)
{
$list = implode(',', $list);
}
return $list;
}
/**
* Gets the server load. On windows systems, it fetches the
* current CPU utilization.
*
* @static
* @return string
*/
public static function load()
{
$sysload = NULL;
// Get the system's load based on the OS
$os = strtolower(PHP_OS);
if (strpos($os, 'win') === FALSE)
{
if (File::exists('/proc/loadavg'))
{
$load = File::get('/proc/loadavg');
$load = explode(' ', $load);
$sysload = $load[0];
}
else if (function_exists('shell_exec'))
{
$load = explode(' ', `uptime`);
$sysload = $load[count($load) - 1];
}
}
else
{
if (function_exists('exec'))
{
$load = array();
exec('wmic cpu get loadpercentage', $load);
if ( ! empty($load[1]))
{
$sysload = "{$load[1]}%";
}
}
}
return empty($sysload) ? Lang::get('global.not_available') : $sysload;
}
/**
* Gets a version number from a version string
*
* @static
* @param string $version
* @return int
*/
public static function version($version)
{
$version = ! empty($version) ? $version : '0.0';
// Remove decimals
$version = str_replace('.', '', $version);
// Convert it to an integer
return intval($version);
}
/**
* Returns the current project name
*
* @static
* @return string|null
*/
public static function project()
{
$fqdn = explode('.', Site::config('general')->fqdn);
$host = explode('.', getenv('SERVER_NAME'));
if (count($host) > count($fqdn))
{
return $host[0];
}
}
/**
* Determines the installed state of the system
*
* @static
* @return bool
*/
public static function installed()
{
return Cache::rememberForever('site.installed', function()
{
return Schema::hasTable('main');
});
}
/**
* Determines whether the latest version of Sticky Notes
* is installed.
*
* - If local version is same as remote, return 0
* - If remote version is newer, return negative integer
* - If local version is newer, return positive integer
*
* @static
* @return int
*/
public static function updated()
{
try
{
// Get the local (installed) version number
$localVersion = static::version(Config::get('app.version'));
// Get the remote version number
$response = Requests::get(Site::config('services')->updateUrl);
$remoteVersion = static::version($response->body);
// Return the version difference
return $localVersion - $remoteVersion;
}
catch (Requests_Exception $e)
{
// HTTP GET failed
return 0;
}
}
/**
* Gets the name of the current action.
* We don't return anything if we are in an error flow
*
* @static
* @return string
*/
public static function action()
{
if (is_null(static::$route) AND ! static::error())
{
$action = Route::currentRouteAction();
static::$route = head(explode('@', $action));
}
return static::$route;
}
/**
* Submits statistics to Sticky Notes server
*
* @return void
*/
public static function submitStats()
{
try
{
// Send / mask the site's URL
$url = Config::get('app.fullStats') ? URL::current() : Lang::get('global.anonymous');
// Populate the data to be send
$data = array(
'url' => $url,
'action' => Request::segment(2),
'version' => Config::get('app.version'),
);
// Send the stats to the REST stats service
Requests::post(Site::config('services')->statsUrl, array(), $data);
}
catch (Requests_Exception $e)
{
// HTTP POST failed. Suppress this exception
}
}
/**
* Sets the system in an error state
*
* @param mixed $state
* @return bool
*/
public static function error($state = NULL)
{
if (is_bool($state))
{
static::$errorState = $state;
}
else
{
return static::$errorState;
}
}
}
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