Current File : //www/varak.net/nextcloud.varak.net/apps_old/apps/serverinfo/lib/SystemStatistics.php
<?php
declare(strict_types=1);
/**
* SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace OCA\ServerInfo;
use OC\Files\View;
use OC\Installer;
use OCP\App\IAppManager;
use OCP\Files\FileInfo;
use OCP\IConfig;
class SystemStatistics {
private IConfig $config;
private View $view;
private IAppManager $appManager;
private Installer $installer;
protected Os $os;
public function __construct(IConfig $config, IAppManager $appManager, Installer $installer, Os $os) {
$this->config = $config;
$this->view = new View('');
$this->appManager = $appManager;
$this->installer = $installer;
$this->os = $os;
}
/**
* Get statistics about the system
*
* @throws \OCP\Files\InvalidPathException
*/
public function getSystemStatistics(bool $skipApps = false, bool $skipUpdate = true): array {
$processorUsage = $this->getProcessorUsage();
$memoryUsage = $this->os->getMemory();
$data = [
'version' => $this->config->getSystemValue('version'),
'theme' => $this->config->getSystemValue('theme', 'none'),
'enable_avatars' => $this->config->getSystemValue('enable_avatars', true) ? 'yes' : 'no',
'enable_previews' => $this->config->getSystemValue('enable_previews', true) ? 'yes' : 'no',
'memcache.local' => $this->config->getSystemValue('memcache.local', 'none'),
'memcache.distributed' => $this->config->getSystemValue('memcache.distributed', 'none'),
'filelocking.enabled' => $this->config->getSystemValue('filelocking.enabled', true) ? 'yes' : 'no',
'memcache.locking' => $this->config->getSystemValue('memcache.locking', 'none'),
'debug' => $this->config->getSystemValue('debug', false) ? 'yes' : 'no',
'freespace' => $this->getFreeSpace(),
'cpuload' => $processorUsage['loadavg'],
'mem_total' => $memoryUsage->getMemTotal() * 1024,
'mem_free' => $memoryUsage->getMemAvailable() * 1024,
'swap_total' => $memoryUsage->getSwapTotal() * 1024,
'swap_free' => $memoryUsage->getSwapFree() * 1024,
];
if (!$skipApps) {
$data['apps'] = $this->getAppsInfo();
}
if (!$skipUpdate) {
$data['update'] = $this->getServerUpdateInfo();
}
return $data;
}
/**
* Get info about server updates and last checked timestamp
*
* @return array information about core updates
*/
protected function getServerUpdateInfo(): array {
$updateInfo = [
'lastupdatedat' => (int) $this->config->getAppValue('core', 'lastupdatedat'),
'available' => false,
];
$lastUpdateResult = json_decode($this->config->getAppValue('core', 'lastupdateResult'), true);
if (is_array($lastUpdateResult)) {
$updateInfo['available'] = (count($lastUpdateResult) > 0);
if (array_key_exists('version', $lastUpdateResult)) {
$updateInfo['available_version'] = $lastUpdateResult['version'];
}
}
return $updateInfo;
}
/**
* Get some info about installed apps, including available updates.
*
* @return array data about apps
*/
protected function getAppsInfo(): array {
// sekeleton about the data we return back
$info = [
'num_installed' => 0,
'num_updates_available' => 0,
'app_updates' => [],
];
// load all apps
$apps = $this->appManager->getInstalledApps();
$info['num_installed'] = \count($apps);
// iteriate through all installed apps.
foreach ($apps as $appId) {
// check if there is any new version available for that specific app
$newVersion = $this->installer->isUpdateAvailable($appId);
if ($newVersion) {
// new version available, count up and tell which version.
$info['num_updates_available']++;
$info['app_updates'][$appId] = $newVersion;
}
}
return $info;
}
/**
* Get current CPU load average
*
* @return array{loadavg: array|string} load average with three values, 1/5/15 minutes average.
*/
protected function getProcessorUsage(): array {
// get current system load average - if we can
$loadavg = (function_exists('sys_getloadavg')) ? sys_getloadavg() : false;
// check if we got any values back.
if ($loadavg === false || count($loadavg) !== 3) {
// either no array or too few array keys.
// returning back zeroes to prevent any errors on JS side.
$loadavg = 'N/A';
}
return [
'loadavg' => $loadavg
];
}
/**
* Get free space if it can be calculated.
*
* @return mixed free space or null
* @throws \OCP\Files\InvalidPathException
*/
protected function getFreeSpace() {
$free_space = $this->view->free_space();
if ($free_space === FileInfo::SPACE_UNKNOWN
|| $free_space === FileInfo::SPACE_UNLIMITED
|| $free_space === FileInfo::SPACE_NOT_COMPUTED) {
return null;
}
return $free_space;
}
}
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