mirror of
https://github.com/librenms/librenms.git
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113 lines
3.8 KiB
PHP
113 lines
3.8 KiB
PHP
<?php
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/**
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* CheckPythonWrapper.php
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*
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* -Description-
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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* @link https://www.librenms.org
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*
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* @copyright 2022 Tony Murray
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* @author Tony Murray <murraytony@gmail.com>
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*/
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namespace LibreNMS\Validations\Poller;
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use App\Models\Poller;
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use App\Models\PollerCluster;
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use LibreNMS\Config;
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use LibreNMS\DB\Eloquent;
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use LibreNMS\ValidationResult;
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class CheckPythonWrapper implements \LibreNMS\Interfaces\Validation
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{
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/** @var bool */
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private $could_not_check_cron = false;
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/**
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* @inheritDoc
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*/
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public function validate(): ValidationResult
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{
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if (Poller::exists()) {
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return $this->checkPythonWrapper();
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}
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// check if cron is installed, then try to check if the cron entries are enabled.
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$cron = Config::locateBinary('cron');
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if ($cron !== 'cron') { // cron is installed
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if ($this->wrapperCronEnabled()) {
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return $this->checkPythonWrapper();
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}
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if ($this->could_not_check_cron) {
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return ValidationResult::info(trans('validation.validations.poller.CheckPythonWrapper.cron_unread'));
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}
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$status = PollerCluster::isActive()->exists() ? ValidationResult::SUCCESS : ValidationResult::FAILURE;
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return new ValidationResult(trans('validation.validations.poller.CheckPythonWrapper.not_detected'), $status);
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}
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$status = PollerCluster::isActive()->exists() ? ValidationResult::SUCCESS : ValidationResult::FAILURE;
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return new ValidationResult(trans('validation.validations.poller.CheckPythonWrapper.no_pollers'), $status);
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}
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/**
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* @inheritDoc
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*/
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public function enabled(): bool
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{
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return Eloquent::isConnected();
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}
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private function checkPythonWrapper(): ValidationResult
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{
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if (! Poller::isActive()->exists()) {
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$status = PollerCluster::isActive()->exists() ? ValidationResult::SUCCESS : ValidationResult::FAILURE;
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return new ValidationResult(trans('validation.validations.poller.CheckPythonWrapper.fail'), $status);
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}
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$inactive_pollers = Poller::isInactive()->get();
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if ($inactive_pollers->isNotEmpty()) {
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return ValidationResult::fail(trans('validation.validations.poller.CheckPythonWrapper.nodes_down'))
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->setList('Inactive Nodes', $inactive_pollers->pluck('poller_name')->toArray());
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}
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return ValidationResult::ok(trans('validation.validations.poller.CheckPythonWrapper.ok'));
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}
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private function wrapperCronEnabled(): bool
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{
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$files = glob('/etc/cron.d/*');
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$files[] = '/etc/crontab';
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$files[] = '/var/spool/cron/crontabs/librenms';
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$this->could_not_check_cron = true; // set this in case we can't read any cron files
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$cron_entries = array_reduce($files, function ($entries, $file) {
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if (is_readable($file)) {
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$entries .= file_get_contents($file) . PHP_EOL;
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$this->could_not_check_cron = false;
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}
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return $entries;
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}, '');
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return (bool) preg_match('/^\s*[^#].*poller-wrapper\.py/', $cron_entries);
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}
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}
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