%PDF-
%PDF-
Mini Shell
Mini Shell
<?php
declare(strict_types=1);
/**
* SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-only
*/
namespace OCA\ServerInfo\OperatingSystems;
use OCA\ServerInfo\Resources\Disk;
use OCA\ServerInfo\Resources\Memory;
use OCA\ServerInfo\Resources\NetInterface;
use OCA\ServerInfo\Resources\ThermalZone;
use RuntimeException;
class Linux implements IOperatingSystem {
private const AF_INET = 2;
private const AF_INET6 = 10;
public function supported(): bool {
return true;
}
public function getMemory(): Memory {
$data = new Memory();
try {
$meminfo = $this->readContent('/proc/meminfo');
} catch (RuntimeException $e) {
return $data;
}
$matches = [];
$pattern = '/(?<Key>(?:MemTotal|MemFree|MemAvailable|SwapTotal|SwapFree)+):\s+(?<Value>\d+)\s+(?<Unit>\w{2})/';
$result = preg_match_all($pattern, $meminfo, $matches);
if ($result === 0 || $result === false) {
return $data;
}
foreach ($matches['Key'] as $i => $key) {
// Value is always in KB: https://github.com/torvalds/linux/blob/c70672d8d316ebd46ea447effadfe57ab7a30a50/fs/proc/meminfo.c#L58-L60
$value = (int)((int)$matches['Value'][$i] / 1024);
switch ($key) {
case 'MemTotal':
$data->setMemTotal($value);
break;
case 'MemFree':
$data->setMemFree($value);
break;
case 'MemAvailable':
$data->setMemAvailable($value);
break;
case 'SwapTotal':
$data->setSwapTotal($value);
break;
case 'SwapFree':
$data->setSwapFree($value);
break;
}
}
return $data;
}
public function getCpuName(): string {
$data = 'Unknown Processor';
try {
$cpuinfo = $this->readContent('/proc/cpuinfo');
} catch (RuntimeException $e) {
return $data;
}
$matches = [];
if (str_contains($cpuinfo, 'Raspberry Pi')) {
$pattern = '/Model\s+:\s(.+)/';
} elseif (str_contains($cpuinfo, 'PowerNV') || str_contains($cpuinfo, 'CHRP IBM pSeries')) {
$pattern = '/cpu\s+:\s+(.+)/';
} else {
$pattern = '/model name\s:\s(.+)/';
}
$result = preg_match_all($pattern, $cpuinfo, $matches);
if ($result === 0 || $result === false) {
return $data;
}
$model = $matches[1][0];
$pattern = '/processor\s+:\s(.+)/';
preg_match_all($pattern, $cpuinfo, $matches);
$threads = count($matches[1]);
if ($threads === 1) {
$data = $model . ' (1 thread)';
} else {
$data = $model . ' (' . $threads . ' threads)';
}
return $data;
}
public function getTime(): string {
try {
return $this->executeCommand('date');
} catch (RuntimeException $e) {
return '';
}
}
public function getUptime(): int {
$data = -1;
try {
$uptime = $this->readContent('/proc/uptime');
} catch (RuntimeException $e) {
return $data;
}
[$uptimeInSeconds,] = array_map('intval', explode(' ', $uptime));
return $uptimeInSeconds;
}
public function getNetworkInfo(): array {
$result = [
'gateway' => '',
'hostname' => \gethostname(),
];
if (function_exists('shell_exec')) {
$result['gateway'] = shell_exec('ip route | awk \'/default/ { print $3 }\'');
}
return $result;
}
public function getNetworkInterfaces(): array {
$data = [];
try {
$interfaces = $this->getNetInterfaces();
} catch (RuntimeException) {
return $data;
}
foreach ($interfaces as $interfaceName => $interface) {
$netInterface = new NetInterface($interfaceName, $interface['up']);
$data[] = $netInterface;
foreach ($interface['unicast'] as $unicast) {
if (isset($unicast['family'])) {
if ($unicast['family'] === self::AF_INET) {
$netInterface->addIPv4($unicast['address']);
}
if ($unicast['family'] === self::AF_INET6) {
$netInterface->addIPv6($unicast['address']);
}
}
}
if ($netInterface->isLoopback()) {
continue;
}
$interfacePath = '/sys/class/net/' . $interfaceName;
try {
$netInterface->setMAC($this->readContent($interfacePath . '/address'));
$speed = (int)$this->readContent($interfacePath . '/speed');
if ($speed >= 1000) {
$netInterface->setSpeed($speed / 1000 . ' Gbps');
} else {
$netInterface->setSpeed($speed . ' Mbps');
}
$netInterface->setDuplex($this->readContent($interfacePath . '/duplex'));
} catch (RuntimeException $e) {
// unable to read interface data
}
}
return $data;
}
public function getDiskInfo(): array {
$data = [];
try {
$disks = $this->executeCommand('df -TPk');
} catch (RuntimeException $e) {
return $data;
}
$matches = [];
$pattern = '/^(?<Filesystem>[\S]+)\s*(?<Type>[\S]+)\s*(?<Blocks>\d+)\s*(?<Used>\d+)\s*(?<Available>\d+)\s*(?<Capacity>\d+%)\s*(?<Mounted>[\w\/\-\.]+)$/m';
$result = preg_match_all($pattern, $disks, $matches);
if ($result === 0 || $result === false) {
return $data;
}
foreach ($matches['Filesystem'] as $i => $filesystem) {
if (in_array($matches['Type'][$i], ['tmpfs', 'devtmpfs', 'squashfs', 'overlay'], false)) {
continue;
} elseif (in_array($matches['Mounted'][$i], ['/etc/hostname', '/etc/hosts'], false)) {
continue;
}
$disk = new Disk();
$disk->setDevice($filesystem);
$disk->setFs($matches['Type'][$i]);
$used = (int)((int)$matches['Blocks'][$i] - (int)$matches['Available'][$i]);
$disk->setUsed((int)ceil($used / 1024));
$disk->setAvailable((int)floor((int)$matches['Available'][$i] / 1024));
$disk->setPercent(round(($used * 100 / (int)$matches['Blocks'][$i]), 2) . '%');
$disk->setMount($matches['Mounted'][$i]);
$data[] = $disk;
}
return $data;
}
public function getThermalZones(): array {
$data = [];
$zones = glob('/sys/class/thermal/thermal_zone*');
if ($zones === false) {
return $data;
}
foreach ($zones as $zone) {
try {
$type = $this->readContent($zone . '/type');
$temp = (float)((int)($this->readContent($zone . '/temp')) / 1000);
$data[] = new ThermalZone(md5($zone), $type, $temp);
} catch (RuntimeException) {
// unable to read thermal zone
}
}
return $data;
}
/**
* @throws RuntimeException
*/
protected function readContent(string $filename): string {
$data = @file_get_contents($filename);
if ($data === false || $data === '') {
throw new RuntimeException('Unable to read: "' . $filename . '"');
}
return trim($data);
}
/**
* Execute a command with shell_exec.
*
* The command will be escaped with escapeshellcmd.
*
* @throws RuntimeException if shell_exec is unavailable, the command failed or an empty response.
*/
protected function executeCommand(string $command): string {
if (function_exists('shell_exec') === false) {
throw new RuntimeException('shell_exec unavailable');
}
$output = shell_exec(escapeshellcmd($command));
if ($output === false || $output === null || $output === '') {
throw new RuntimeException('No output for command: "' . $command . '"');
}
return $output;
}
/**
* Wrapper for net_get_interfaces
*
* @throws RuntimeException
*/
protected function getNetInterfaces(): array {
$data = net_get_interfaces();
if ($data === false) {
throw new RuntimeException('Unable to get network interfaces');
}
return $data;
}
}
Zerion Mini Shell 1.0