LibreNMS/app/Console/Commands/DevSimulate.php

143 lines
4.0 KiB
PHP

<?php
namespace App\Console\Commands;
use App\Console\LnmsCommand;
use App\Models\Device;
use Illuminate\Support\Str;
use LibreNMS\Util\Snmpsim;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Process\Process;
class DevSimulate extends LnmsCommand
{
protected $name = 'dev:simulate';
protected $developer = true;
/**
* @var Snmpsim
*/
protected $snmpsim = null;
/**
* The console command description.
*
* @var string
*/
protected $description = 'Simulate devices using test data';
/**
* Create a new command instance.
*
* @return void
*/
public function __construct()
{
parent::__construct();
$this->addArgument('file', InputArgument::OPTIONAL);
$this->addOption('multiple', 'm', InputOption::VALUE_NONE);
$this->addOption('remove', 'r', InputOption::VALUE_NONE);
}
/**
* Execute the console command.
*
* @return int
*/
public function handle()
{
$this->snmpsim = new Snmpsim();
$snmprec_dir = $this->snmpsim->getDir();
$listen = $this->snmpsim->getIp() . ':' . $this->snmpsim->getPort();
$file = $this->argument('file');
if ($file && ! file_exists(base_path("tests/snmpsim/$file.snmprec"))) {
$this->error("$file does not exist");
return 1;
}
$snmpsim = new Process([
$this->snmpsim->findSnmpsimd(),
"--data-dir=$snmprec_dir",
"--agent-udpv4-endpoint=$listen",
]);
$snmpsim->setTimeout(null);
$snmpsim->run(function ($type, $buffer) use ($listen) {
if (Process::ERR === $type) {
if (Str::contains($buffer, $listen)) {
$this->line(trim($buffer));
$this->started();
$this->line(trans('commands.dev:simulate.exit'));
}
}
});
if (! $snmpsim->isSuccessful()) {
$this->line($snmpsim->getErrorOutput());
}
return 0;
}
private function started()
{
if ($file = $this->argument('file')) {
$this->addDevice($file);
}
}
private function addDevice($community)
{
$hostname = $this->option('multiple') ? $community : 'snmpsim';
$device = Device::firstOrNew(['hostname' => $hostname]);
$action = $device->exists ? 'updated' : 'added';
$device->overwrite_ip = $this->snmpsim->getIp();
$device->port = $this->snmpsim->getPort();
$device->snmpver = 'v2c';
$device->transport = 'udp';
$device->community = $community;
$device->last_discovered = null;
$device->status_reason = '';
$device->save();
$this->info(trans("commands.dev:simulate.$action", ['hostname' => $device->hostname, 'id' => $device->device_id]));
// set up removal shutdown function if requested
if ($this->option('remove')) {
$this->queueRemoval($device->device_id);
}
}
private function queueRemoval($device_id)
{
if (function_exists('pcntl_signal')) {
pcntl_signal(SIGINT, function () {
exit; // exit normally on SIGINT
});
}
register_shutdown_function(function () use ($device_id) {
Device::findOrNew($device_id)->delete();
$this->info(trans('commands.dev:simulate.removed', ['id' => $device_id]));
exit;
});
}
public function completeArgument($name, $value)
{
if ($name == 'file') {
return collect(glob(base_path('tests/snmpsim/*.snmprec')))->map(function ($file) {
return basename($file, '.snmprec');
})->filter(function ($snmprec) use ($value) {
return ! $value || Str::startsWith($snmprec, $value);
})->all();
}
return false;
}
}