Files
librenms-librenms/LibreNMS/Util/Dns.php
Tony Murray c79b187d72 Poller rewrite (Try 2) (#13525)
* core WIP

* try to finish up

* trim space too
and a couple of cleanups

* update test data

* put escapes back

* another net-snmp difference

* correct copy paste error

* WIP

* Use new code YAY

* a tiny bit more

* Kind of working

* Handle manual modules correctly

* convert core to modern module

* Only save metrics if modules is not overridden

* correct module exists check

* database error handling

* debug handling

* restore bad changes

* Introduce Actions
 RunAlertRulesAction
 UpdateDeviceGroupsAction

* tweaks to output

* Fix some issues in outside code

* Style fixes

* fixes to module status checks

* typehints!

* Use logger only and DI

* OS module not named correctly

* Work on quiet output a bit more

* generically don't change output when disabling debug if the driver is already stack

* Fix missing $device variable for legacy os polling
Fix missing dbFacile functions when no legacy modules polled in RunAlertRulesAction

* restore legacy os module shim

* use the new poller code for tests

* PollingDevice event

* Fix some issues and enable/disable error reporting around legacy modules

* typehints

* fully update baseline

* Use Process for version commands so we don't leak debug output.

* don't detect rrdtool version in ci every time

* style fixes

* Warning fixes

* more fixes

* re-update baseline

* remove diff noise

* fix up alerts

* Catch exceptions in device ip lookup

* Revert accidental snmp.inc.php poller target change
(should have been ?: not ??)
2021-11-17 19:23:55 -06:00

87 lines
2.4 KiB
PHP

<?php
/**
* Dns.php
*
* Get version info about LibreNMS and various components/dependencies
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @link http://librenms.org
*
* @copyright 2021 Thomas Berberich
* @author Thomas Berberch <sourcehhdoctor@gmail.com>
*/
namespace LibreNMS\Util;
use App\Models\Device;
use LibreNMS\Interfaces\Geocoder;
class Dns implements Geocoder
{
protected $resolver;
public function __construct()
{
$this->resolver = new \Net_DNS2_Resolver();
}
public static function lookupIp(Device $device): ?string
{
if (IP::isValid($device->hostname)) {
return $device->hostname;
}
try {
if ($device->transport == 'udp6' || $device->transport == 'tcp6') {
return dns_get_record($device['hostname'], DNS_AAAA)[0]['ipv6'] ?? null;
}
return dns_get_record($device['hostname'], DNS_A)[0]['ip'] ?? null;
} catch (\Exception $e) {
return null;
}
}
/**
* @param string $domain Domain which has to be parsed
* @param string $record DNS Record which should be searched
* @return array List of matching records
*/
public function getRecord($domain, $record = 'A')
{
try {
$ret = $this->resolver->query($domain, $record);
return $ret->answer;
} catch (\Net_DNS2_Exception $e) {
d_echo('::query() failed: ' . $e->getMessage());
return [];
}
}
public function getCoordinates($hostname)
{
foreach ($this->getRecord($hostname, 'LOC') as $record) {
return [
'lat' => $record->latitude ?? null,
'lng' => $record->longitude ?? null,
];
}
return [];
}
}