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https://github.com/librenms/librenms.git
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0801af7a81
* Consolidate and improve snmptranslate usage * Fix style * lint fixes * fix typo * allow multiple mib directories * Only add mib if it is not already set * oid first, in case we have key length issues * if there is a full oid, don't add other mibs * debug in ci * more debug in ci * better debug in ci * remove debug * Use numeric index * revert dlink change * Don't add -On twice * unit tests and hopefully better heuristics * remove dump and add one more set of tests * style fixes * handle bad input in old functions * shortcut whole snmp_translate function
83 lines
2.2 KiB
PHP
83 lines
2.2 KiB
PHP
<?php
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/*
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* Snmp.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 <http://www.gnu.org/licenses/>.
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*
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* @package LibreNMS
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* @link http://librenms.org
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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\Util;
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use Cache;
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use LibreNMS\Exceptions\InvalidOidException;
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class Oid
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{
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public static function isNumeric(string $oid): bool
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{
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return (bool) preg_match('/^[.\d]+$/', $oid);
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}
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public static function hasNumericRoot(string $oid): bool
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{
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return (bool) preg_match('/^\.?1/', $oid);
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}
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public static function hasNumeric(array $oids): bool
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{
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foreach ($oids as $oid) {
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if (self::isNumeric($oid)) {
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return true;
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}
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}
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return false;
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}
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/**
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* Converts an oid to numeric and caches the result
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*
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* @throws \LibreNMS\Exceptions\InvalidOidException
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*/
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public static function toNumeric(string $oid, string $mib = 'ALL', int $cache = 1800): string
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{
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if (Oid::isNumeric($oid)) {
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return $oid;
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}
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// we already have a specific mib, don't add a bunch of others
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if (str_contains($oid, '::')) {
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$mib = null;
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}
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$key = 'Oid:toNumeric:' . $oid . '/' . $mib;
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$numeric_oid = Cache::remember($key, $cache, function () use ($oid, $mib) {
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return \SnmpQuery::numeric()->translate($oid, $mib);
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});
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if (empty($numeric_oid)) {
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throw new InvalidOidException("Unable to translate oid $oid");
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}
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return $numeric_oid;
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}
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}
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