mirror of
https://github.com/librenms/librenms.git
synced 2024-10-07 16:52:45 +00:00
11147d3bbf
* Extract DiscoveryItem and move some things to better places. Extract model class Fix up model construction. I have problem with construction... Makeshift model working. Switch constructor to factory. discover() and create() Support legacy discovery. Remove uneeded custom pollers Remove netonix custom detection as we try ucd on all os now. Add a few yaml procs. Fix a couple things. More processor discovery conversions Move Calix e7 to standard hrProcessorLoad, but it doesn't fully implement the HR-MIB, move things around to make it work. Add a few yaml procs. Fix a couple things. Correct some stupid mib stuff. Move more, drop php 5.3 Add netscaler which uses string indexes. Port fiberhome to yaml and use skip_values More conversions. BroadcomProcessorUsage Trait Serveriron and Ironware share some mibs. Create a common abstract os for them. Add yaml support for mib specification in each data entry Make legacy discover_processor() set 0 for hrDeviceIndex Untangle Dell switch OS processors Use use shared OS for groups if they don't have a specific group. fix silly mib mistake Make index optional Move HR and UCD to Traits and out of Processor. * forgot to update the fortiswitch index * Make sgos and avaya-ers match the old index. * fix comware test data * fix merge errors * fix dsm and remove pointless empty modules * file not found exception is in the wrong place. * Updated processor development docs
702 lines
22 KiB
PHP
702 lines
22 KiB
PHP
<?php
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/**
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* ModuleTester.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 2017 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 LibreNMS\Config;
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use LibreNMS\Exceptions\FileNotFoundException;
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use Symfony\Component\Yaml\Yaml;
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class ModuleTestHelper
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{
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private $quiet = false;
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private $modules;
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private $variant;
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private $os;
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private $snmprec_file;
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private $json_file;
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private $snmprec_dir;
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private $json_dir;
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private $file_name;
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private $module_tables;
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private $discovery_output;
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private $poller_output;
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// Definitions
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// ignore these when dumping all modules
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private $exclude_from_all = ['arp-table'];
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private $module_deps = [
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'arp-table' => ['ports', 'arp-table'],
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];
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/**
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* ModuleTester constructor.
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* @param array|string $modules
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* @param string $os
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* @param string $variant
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*/
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public function __construct($modules, $os, $variant = '')
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{
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global $influxdb;
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$this->modules = $this->resolveModuleDependencies((array)$modules);
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$this->os = strtolower($os);
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$this->variant = strtolower($variant);
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// preset the file names
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if ($variant) {
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$variant = '_' . $this->variant;
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}
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$install_dir = Config::get('install_dir');
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$this->file_name = $os . $variant;
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$this->snmprec_dir = "$install_dir/tests/snmpsim/";
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$this->snmprec_file = $this->snmprec_dir . $this->file_name . ".snmprec";
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$this->json_dir = "$install_dir/tests/data/";
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$this->json_file = $this->json_dir . $this->file_name . ".json";
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// never store time series data
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Config::set('norrd', true);
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Config::set('hide_rrd_disabled', true);
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Config::set('noinfluxdb', true);
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$influxdb = false;
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Config::set('nographite', true);
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$this->module_tables = Yaml::parse($install_dir . '/tests/module_tables.yaml');
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}
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private static function compareOid($a, $b)
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{
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$a_oid = explode('.', $a);
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$b_oid = explode('.', $b);
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foreach ($a_oid as $index => $a_part) {
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$b_part = $b_oid[$index];
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if ($a_part > $b_part) {
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return 1; // a is higher
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} elseif ($a_part < $b_part) {
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return -1; // b is higher
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}
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}
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if (count($a_oid) < count($b_oid)) {
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return -1; // same prefix, but b has more so it is higher
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}
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return 0;
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}
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public function setQuiet($quiet = true)
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{
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$this->quiet = $quiet;
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}
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public function setSnmprecSavePath($path)
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{
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$this->snmprec_file = $path;
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}
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public function setJsonSavePath($path)
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{
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$this->json_file = $path;
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}
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public function captureFromDevice($device_id, $write = true, $prefer_new = false)
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{
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$snmp_oids = $this->collectOids($device_id);
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$device = device_by_id_cache($device_id, true);
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$snmprec_data = array();
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foreach ($snmp_oids as $oid_data) {
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$this->qPrint(" " . $oid_data['oid']);
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$snmp_options = '-OUneb -Ih';
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if ($oid_data['method'] == 'walk') {
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$data = snmp_walk($device, $oid_data['oid'], $snmp_options, $oid_data['mib']);
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} elseif ($oid_data['method'] == 'get') {
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$data = snmp_get($device, $oid_data['oid'], $snmp_options, $oid_data['mib']);
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} elseif ($oid_data['method'] == 'getnext') {
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$data = snmp_getnext($device, $oid_data['oid'], $snmp_options, $oid_data['mib']);
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}
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if (isset($data) && $data !== false) {
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$snmprec_data[] = $this->convertSnmpToSnmprec($data);
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}
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}
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$this->qPrint(PHP_EOL);
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return $this->saveSnmprec($snmprec_data, $write, $prefer_new);
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}
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private function collectOids($device_id)
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{
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global $debug, $vdebug, $device;
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$device = device_by_id_cache($device_id);
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// Run discovery
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ob_start();
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$save_debug = $debug;
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$save_vedbug = $vdebug;
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$debug = true;
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$vdebug = false;
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discover_device($device, $this->getArgs());
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poll_device($device, $this->getArgs());
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$debug = $save_debug;
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$vdebug = $save_vedbug;
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$collection_output = ob_get_contents();
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ob_end_clean();
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d_echo($collection_output);
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d_echo(PHP_EOL);
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// remove color
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$collection_output = preg_replace('/\033\[[\d;]+m/', '', $collection_output);
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// extract snmp queries
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$snmp_query_regex = '/SNMP\[.*snmp(?:bulk)?([a-z]+) .+:HOSTNAME:[0-9]+(.+)\]/';
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preg_match_all($snmp_query_regex, $collection_output, $snmp_matches);
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// extract mibs and group with oids
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$snmp_oids = array(
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'sysDescr.0_get' => array('oid' => 'sysDescr.0', 'mib' => 'SNMPv2-MIB', 'method' => 'get'),
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'sysObjectID.0_get' => array('oid' => 'sysObjectID.0', 'mib' => 'SNMPv2-MIB', 'method' => 'get'),
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);
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foreach ($snmp_matches[0] as $index => $line) {
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preg_match('/-m ([a-zA-Z0-9:\-]+)/', $line, $mib_matches);
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$mib = $mib_matches[1];
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$method = $snmp_matches[1][$index];
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$oids = explode(' ', trim($snmp_matches[2][$index]));
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foreach ($oids as $oid) {
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$snmp_oids["{$oid}_$method"] = array(
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'oid' => $oid,
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'mib' => $mib,
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'method' => $method,
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);
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}
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}
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d_echo("OIDs to capture ");
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d_echo($snmp_oids);
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return $snmp_oids;
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}
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/**
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* Generate a list of os containing test data for $modules (an empty array means all)
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*
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* Returns an array indexed by the basename ($os or $os_$variant)
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* Each entry contains [$os, $variant, $valid_modules]
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* $valid_modules is an array of selected modules this os has test data for
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*
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* @param array $modules
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* @return array
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*/
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public static function findOsWithData($modules = array())
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{
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$os_list = array();
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foreach (glob(Config::get('install_dir') . "/tests/data/*.json") as $file) {
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$base_name = basename($file, '.json');
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list($os, $variant) = self::extractVariant($file);
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// calculate valid modules
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$data_modules = array_keys(json_decode(file_get_contents($file), true));
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if (empty($modules)) {
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$valid_modules = $data_modules;
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} else {
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$valid_modules = array_intersect($modules, $data_modules);
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}
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if (empty($valid_modules)) {
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continue; // no test data for selected modules
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}
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$os_list[$base_name] = array(
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$os,
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$variant,
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$valid_modules,
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);
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}
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return $os_list;
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}
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/**
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* Given a json filename or basename, extract os and variant
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*
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* @param string $os_file Either a filename or the basename
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* @return array [$os, $variant]
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*/
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public static function extractVariant($os_file)
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{
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$full_name = basename($os_file, '.json');
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if (!str_contains($full_name, '_')) {
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return [$full_name, ''];
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} elseif (is_file(Config::get('install_dir') . "/includes/definitions/$full_name.yaml")) {
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return [$full_name, ''];
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} else {
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list($rvar, $ros) = explode('_', strrev($full_name), 2);
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return [strrev($ros), strrev($rvar)];
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}
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}
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/**
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* Generate a module list. Try to take dependencies into account.
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* Probably needs to be more robust
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*
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* @param array $modules
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* @return array
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*/
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private function resolveModuleDependencies($modules)
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{
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// generate a full list of modules
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$full_list = array();
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foreach ($modules as $module) {
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// only allow valid modules
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if (!(Config::has("poller_modules.$module") || Config::has("discovery_modules.$module"))) {
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continue;
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}
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if (isset($this->module_deps[$module])) {
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$full_list = array_merge($full_list, $this->module_deps[$module]);
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} else {
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$full_list[] = $module;
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}
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}
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return array_unique($full_list);
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}
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private function getArgs()
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{
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if (empty($this->modules)) {
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return array();
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}
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return array('m' => implode(',', $this->modules));
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}
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private function qPrint($var)
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{
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if ($this->quiet) {
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return;
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}
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if (is_array($var)) {
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print_r($var);
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} else {
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echo $var;
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}
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}
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private function convertSnmpToSnmprec($snmp_data)
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{
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$result = array();
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foreach (explode(PHP_EOL, $snmp_data) as $line) {
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if (empty($line)) {
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continue;
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}
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if (preg_match('/^\.[.\d]+ =/', $line)) {
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list($oid, $raw_data) = explode(' =', $line, 2);
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$oid = ltrim($oid, '.');
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$raw_data = trim($raw_data);
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if (empty($raw_data)) {
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$result[] = "$oid|4|"; // empty data, we don't know type, put string
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} else {
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list($raw_type, $data) = explode(':', $raw_data, 2);
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if (starts_with($raw_type, 'Wrong Type (should be ')) {
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// device returned the wrong type, save the wrong type to emulate the device behavior
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list($raw_type, $data) = explode(':', ltrim($data), 2);
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}
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$data = ltrim($data, ' "');
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$type = $this->getSnmprecType($raw_type);
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if ($type == '6') {
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// remove leading . from oid data
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$data = ltrim($data, '.');
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} elseif ($type == '4x') {
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// remove spaces from hex-strings
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$data = str_replace(' ', '', $data);
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} elseif ($type == '67') {
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// extract timeticks value (-Ot removes type info)
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preg_match('/\((\d+)\)/', $data, $match);
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$data = $match[1];
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}
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$result[] = "$oid|$type|$data";
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}
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} else {
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// multi-line data, append to last
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$last = end($result);
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list($oid, $type, $data) = explode('|', $last, 3);
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if ($type == '4x') {
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$result[key($result)] .= bin2hex(PHP_EOL . $line);
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} else {
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$result[key($result)] = "$oid|4x|" . bin2hex($data . PHP_EOL . $line);
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}
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}
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}
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return $result;
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}
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private function getSnmprecType($text)
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{
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$snmpTypes = array(
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'STRING' => '4',
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'OID' => '6',
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'Hex-STRING' => '4x',
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'Timeticks' => '67',
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'INTEGER' => '2',
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'OCTET STRING' => '4',
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'BITS' => '4', # not sure if this is right
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'Integer32' => '2',
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'NULL' => '5',
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'OBJECT IDENTIFIER' => '6',
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'IpAddress' => '64',
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'Counter32' => '65',
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'Gauge32' => '66',
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'Opaque' => '68',
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'Counter64' => '70',
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'Network Address' => '4'
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);
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return $snmpTypes[$text];
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}
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private function saveSnmprec($data, $write = true, $prefer_new = false)
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{
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if (is_file($this->snmprec_file)) {
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$existing_data = $this->indexSnmprec(explode(PHP_EOL, file_get_contents($this->snmprec_file)));
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} else {
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$existing_data = array();
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}
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$new_data = array();
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foreach ($data as $part) {
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$new_data = array_merge($new_data, $this->indexSnmprec($part));
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}
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$this->cleanSnmprecData($new_data);
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// merge new and existing data
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if ($prefer_new) {
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$results = array_merge($existing_data, $new_data);
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} else {
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$results = array_merge($new_data, $existing_data);
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}
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// put data in the proper order for snmpsim
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uksort($results, array($this, 'compareOid'));
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$output = implode(PHP_EOL, $results) . PHP_EOL;
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if ($write) {
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$this->qPrint("\nUpdated snmprec data $this->snmprec_file\n");
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$this->qPrint("\nVerify this file does not contain any private data before submitting!\n");
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file_put_contents($this->snmprec_file, $output);
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}
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return $output;
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}
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private function indexSnmprec(array $snmprec_data)
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{
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$result = array();
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foreach ($snmprec_data as $line) {
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if (!empty($line)) {
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list($oid,) = explode('|', $line, 2);
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$result[$oid] = $line;
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}
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}
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return $result;
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}
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private function cleanSnmprecData(&$data)
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{
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$private_oid = array(
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'1.3.6.1.2.1.1.6.0',
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'1.3.6.1.2.1.1.4.0',
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'1.3.6.1.2.1.1.5.0',
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);
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foreach ($private_oid as $oid) {
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if (isset($data[$oid])) {
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$parts = explode('|', $data[$oid], 3);
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$parts[2] = '<private>';
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$data[$oid] = implode('|', $parts);
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}
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}
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}
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/**
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* Run discovery and polling against snmpsim data and create a database dump
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* Save the dumped data to tests/data/<os>.json
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*
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* @param Snmpsim $snmpsim
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* @param bool $no_save
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* @return array
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* @throws FileNotFoundException
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*/
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public function generateTestData(Snmpsim $snmpsim, $no_save = false)
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{
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global $device, $debug, $vdebug;
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if (!is_file($this->snmprec_file)) {
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throw new FileNotFoundException("$this->snmprec_file does not exist!");
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}
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// Remove existing device in case it didn't get removed previously
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if ($existing_device = device_by_name($snmpsim->getIp())) {
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delete_device($existing_device['device_id']);
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}
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// Add the test device
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try {
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Config::set('snmp.community', array($this->file_name));
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$device_id = addHost($snmpsim->getIp(), 'v2c', $snmpsim->getPort());
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$this->qPrint("Added device: $device_id\n");
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} catch (\Exception $e) {
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echo $this->file_name . ': ' . $e->getMessage() . PHP_EOL;
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return null;
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}
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// Populate the device variable
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$device = device_by_id_cache($device_id, true);
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$data = array(); // array to hold dumped data
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// Run discovery
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if ($this->quiet) {
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ob_start();
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$save_debug = $debug;
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$save_vedbug = $vdebug;
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$debug = true;
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$vdebug = false;
|
|
}
|
|
|
|
discover_device($device, $this->getArgs());
|
|
|
|
if ($this->quiet) {
|
|
$this->discovery_output = ob_get_contents();
|
|
ob_end_clean();
|
|
$debug = $save_debug;
|
|
$vdebug = $save_vedbug;
|
|
}
|
|
|
|
$this->qPrint(PHP_EOL);
|
|
|
|
// Dump the discovered data
|
|
$data = array_merge_recursive($data, $this->dumpDb($device['device_id'], 'discovery'));
|
|
$device = device_by_id_cache($device_id, true); // refresh the device array
|
|
|
|
// Run the poller
|
|
if ($this->quiet) {
|
|
ob_start();
|
|
$debug = true;
|
|
$vdebug = false;
|
|
}
|
|
|
|
poll_device($device, $this->getArgs());
|
|
|
|
if ($this->quiet) {
|
|
$this->poller_output = ob_get_contents();
|
|
ob_end_clean();
|
|
$debug = $save_debug;
|
|
$vdebug = $save_vedbug;
|
|
}
|
|
|
|
// Dump polled data
|
|
$data = array_merge_recursive($data, $this->dumpDb($device['device_id'], 'poller'));
|
|
|
|
// Remove the test device, we don't need the debug from this
|
|
if ($device['hostname'] == $snmpsim->getIp()) {
|
|
global $debug;
|
|
$debug = false;
|
|
delete_device($device['device_id']);
|
|
}
|
|
|
|
|
|
if (!$no_save) {
|
|
d_echo($data);
|
|
|
|
// Save the data to the default test data location (or elsewhere if specified)
|
|
$existing_data = json_decode(file_get_contents($this->json_file), true);
|
|
|
|
// insert new data, don't store duplicate data
|
|
foreach ($data as $module => $module_data) {
|
|
if ($module_data['discovery'] == $module_data['poller']) {
|
|
$existing_data[$module] = array(
|
|
'discovery' => $module_data['discovery'],
|
|
'poller' => 'matches discovery',
|
|
);
|
|
} else {
|
|
$existing_data[$module] = $module_data;
|
|
}
|
|
}
|
|
|
|
file_put_contents($this->json_file, _json_encode($existing_data) . PHP_EOL);
|
|
$this->qPrint("Saved to $this->json_file\nReady for testing!\n");
|
|
}
|
|
|
|
return $data;
|
|
}
|
|
|
|
/**
|
|
* Dump the current database data for the module to an array
|
|
* Mostly used for testing
|
|
*
|
|
* @param int $device_id The test device id
|
|
* @param string $key a key to store the data under the module key (usually discovery or poller)
|
|
* @return array The dumped data keyed by module -> table
|
|
*/
|
|
public function dumpDb($device_id, $key = null)
|
|
{
|
|
$data = array();
|
|
$module_dump_info = $this->getTableData();
|
|
|
|
// don't dump some modules by default unless they are manually listed
|
|
if (empty($this->modules)) {
|
|
foreach ($this->exclude_from_all as $module) {
|
|
unset($module_dump_info[$module]);
|
|
}
|
|
}
|
|
|
|
foreach ($module_dump_info as $module => $module_tables) {
|
|
foreach ($module_tables as $table => $info) {
|
|
// check for custom where
|
|
$where = isset($info['custom_where']) ? $info['custom_where'] : "WHERE `device_id`=?";
|
|
$params = array($device_id);
|
|
|
|
// build joins
|
|
$join = '';
|
|
foreach ($info['joins'] as $join_info) {
|
|
if (isset($join_info['custom'])) {
|
|
$join .= ' ' . $join_info['custom'];
|
|
} else {
|
|
list($left, $lkey) = explode('.', $join_info['left']);
|
|
list($right, $rkey) = explode('.', $join_info['right']);
|
|
$join .= " LEFT JOIN `$right` ON (`$left`.`$lkey` = `$right`.`$rkey`)";
|
|
}
|
|
}
|
|
|
|
if (isset($info['order_by'])) {
|
|
$order_by = " ORDER BY {$info['order_by']}";
|
|
} else {
|
|
$order_by = '';
|
|
}
|
|
|
|
$rows = dbFetchRows("SELECT * FROM `$table` $join $where $order_by", $params);
|
|
|
|
// remove unwanted fields
|
|
if (isset($info['included_fields'])) {
|
|
$keys = array_flip($info['included_fields']);
|
|
$rows = array_map(function ($row) use ($keys) {
|
|
return array_intersect_key($row, $keys);
|
|
}, $rows);
|
|
} elseif (isset($info['excluded_fields'])) {
|
|
$keys = array_flip($info['excluded_fields']);
|
|
$rows = array_map(function ($row) use ($keys) {
|
|
return array_diff_key($row, $keys);
|
|
}, $rows);
|
|
}
|
|
|
|
if (isset($key)) {
|
|
$data[$module][$key][$table] = $rows;
|
|
} else {
|
|
$data[$module][$table] = $rows;
|
|
}
|
|
}
|
|
}
|
|
|
|
return $data;
|
|
}
|
|
|
|
/**
|
|
* Get list of tables used by a module
|
|
* Includes a list of fields that will not be considered for testing
|
|
*
|
|
* @return array
|
|
*/
|
|
public function getTableData()
|
|
{
|
|
return array_intersect_key($this->module_tables, array_flip($this->getModules()));
|
|
}
|
|
|
|
public function getLastDiscoveryOutput()
|
|
{
|
|
return $this->discovery_output;
|
|
}
|
|
|
|
public function getLastPollerOutput()
|
|
{
|
|
return $this->poller_output;
|
|
}
|
|
|
|
/**
|
|
* Get a list of all modules that support capturing data
|
|
*
|
|
* @return array
|
|
*/
|
|
public function getSupportedModules()
|
|
{
|
|
return array_keys($this->module_tables);
|
|
}
|
|
|
|
/**
|
|
* Get a list of modules to capture data for
|
|
* If modules is empty, returns all supported modules
|
|
*
|
|
* @return array
|
|
*/
|
|
private function getModules()
|
|
{
|
|
return empty($this->modules) ? $this->getSupportedModules() : $this->modules;
|
|
}
|
|
|
|
public function getTestData()
|
|
{
|
|
return json_decode(file_get_contents($this->json_file), true);
|
|
}
|
|
|
|
public function getJsonFilepath($short = false)
|
|
{
|
|
if ($short) {
|
|
return ltrim(str_replace(Config::get('install_dir'), '', $this->json_file), '/');
|
|
}
|
|
return $this->json_file;
|
|
}
|
|
}
|