Files
librenms-librenms/includes/polling/customoid.inc.php
David Girón 46899d1643 Custom OID processing of numeric strings with filters (#13968)
* Custom OID processing of numeric strings with filters

* Fix syntax

* Refactor ajax customoid code
2022-06-10 16:24:50 -05:00

70 lines
2.4 KiB
PHP

<?php
use LibreNMS\RRD\RrdDefinition;
foreach (dbFetchRows('SELECT * FROM `customoids` WHERE `customoid_passed` = 1 AND `device_id` = ?', [$device['device_id']]) as $customoid) {
d_echo($customoid);
$prev_oid_value = $customoid['customoid_current'];
$rawdata = snmp_get($device, $customoid['customoid_oid'], '-Oqv');
$user_funcs = [
'celsius_to_fahrenheit',
'fahrenheit_to_celsius',
'uw_to_dbm',
];
if (is_numeric($rawdata)) {
$os->enableGraph('customoid');
$oid_value = $rawdata;
} elseif (
$customoid['customoid_unit'] &&
str_i_contains($rawdata, $customoid['customoid_unit']) &&
is_numeric(trim(str_replace($customoid['customoid_unit'], '', $rawdata)))
) {
$os->enableGraph('customoid');
$oid_value = trim(str_replace($customoid['customoid_unit'], '', $rawdata));
} elseif (is_numeric(string_to_float($rawdata))) {
$os->enableGraph('customoid');
$oid_value = string_to_float($rawdata);
} else {
$oid_value = 0;
$error = 'Invalid SNMP reply.';
}
if ($customoid['customoid_divisor'] && $oid_value !== 0) {
$oid_value = ($oid_value / $customoid['customoid_divisor']);
}
if ($customoid['customoid_multiplier']) {
$oid_value = ($oid_value * $customoid['customoid_multiplier']);
}
if (isset($customoid['user_func']) && in_array($customoid['user_func'], $user_funcs)) {
$oid_value = $customoid['user_func']($oid_value);
}
echo 'Custom OID ' . $customoid['customoid_descr'] . ': ';
echo $oid_value . ' ' . $customoid['customoid_unit'] . "\n";
$fields = [
'oid_value' => $oid_value,
];
$rrd_name = ['customoid', $customoid['customoid_descr']];
if ($customoid['customoid_datatype'] == 'COUNTER') {
$datatype = $customoid['customoid_datatype'];
} else {
$datatype = 'GAUGE';
}
$rrd_def = RrdDefinition::make()
->addDataset('oid_value', $datatype);
$tags = compact('rrd_name', 'rrd_def');
data_update($device, 'customoid', $tags, $fields);
dbUpdate(['customoid_current' => $oid_value, 'lastupdate' => ['NOW()'], 'customoid_prev' => $prev_oid_value], 'customoids', '`customoid_id` = ?', [$customoid['customoid_id']]);
}//end foreach
unset($customoid, $prev_oid_value, $rawdata, $user_funcs, $oid_value, $error, $fields, $rrd_def, $rrd_name, $tags);