mirror of
https://github.com/librenms/librenms.git
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244 lines
9.8 KiB
PHP
244 lines
9.8 KiB
PHP
<?php
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/* LibreNMS
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*
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* Copyright (C) 2017 Paul Blasquez <pblasquez@gmail.com>
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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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namespace LibreNMS\Alert\Transport;
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use LibreNMS\Alert\Transport;
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use LibreNMS\Enum\AlertState;
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class Elasticsearch extends Transport
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{
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public function deliverAlert($obj, $opts)
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{
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if (! empty($this->config)) {
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$opts['es_host'] = $this->config['es-host'];
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$opts['es_port'] = $this->config['es-port'];
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$opts['es_index'] = $this->config['es-pattern'];
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$opts['es_proxy'] = $this->config['es-proxy'];
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}
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return $this->contactElasticsearch($obj, $opts);
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}
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public function contactElasticsearch($obj, $opts)
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{
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$es_host = '127.0.0.1';
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$es_port = 9200;
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$index = strftime('librenms-%Y.%m.%d');
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$type = 'alert';
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$severity = $obj['severity'];
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$device = device_by_id_cache($obj['device_id']); // for event logging
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if (! empty($opts['es_host'])) {
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if (preg_match('/[a-zA-Z]/', $opts['es_host'])) {
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$es_host = gethostbyname($opts['es_host']);
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if ($es_host === $opts['es_host']) {
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return 'Alphanumeric hostname found but does not resolve to an IP.';
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}
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} elseif (filter_var($opts['es_host'], FILTER_VALIDATE_IP)) {
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$es_host = $opts['es_host'];
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} else {
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return 'Elasticsearch host is not a valid IP: ' . $opts['es_host'];
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}
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}
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if (! empty($opts['es_port']) && preg_match("/^\d+$/", $opts['es_port'])) {
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$es_port = $opts['es_port'];
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}
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if (! empty($opts['es_index'])) {
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$index = strftime($opts['es_index']);
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}
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$host = $es_host . ':' . $es_port . '/' . $index . '/' . $type;
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switch ($obj['state']) {
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case AlertState::RECOVERED:
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$state = 'ok';
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break;
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case AlertState::ACTIVE:
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$state = $severity;
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break;
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case AlertState::ACKNOWLEDGED:
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$state = 'acknowledged';
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break;
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case AlertState::WORSE:
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$state = 'worse';
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break;
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case AlertState::BETTER:
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$state = 'better';
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break;
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default:
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$state = 'unknown';
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break;
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}
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$data = [
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'@timestamp' => date('c'),
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'host' => gethostname(),
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'location' => $obj['location'],
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'title' => $obj['name'],
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'message' => $obj['string'],
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'device_id' => $obj['device_id'],
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'device_name' => $obj['hostname'],
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'device_hardware' => $obj['hardware'],
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'device_version' => $obj['version'],
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'state' => $state,
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'severity' => $severity,
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'first_occurrence' => $obj['timestamp'],
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'entity_type' => 'device',
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'entity_tab' => 'overview',
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'entity_id' => $obj['device_id'],
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'entity_name' => $obj['hostname'],
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'entity_descr' => $obj['sysDescr'],
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];
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if (! empty($obj['faults'])) {
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foreach ($obj['faults'] as $k => $v) {
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$curl = curl_init();
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$data['message'] = $v['string'];
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switch (true) {
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case array_key_exists('port_id', $v):
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$data['entity_type'] = 'port';
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$data['entity_tab'] = 'port';
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$data['entity_id'] = $v['port_id'];
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$data['entity_name'] = $v['ifName'];
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$data['entity_descr'] = $v['ifAlias'];
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break;
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case array_key_exists('sensor_id', $v):
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$data['entity_type'] = $v['sensor_class'];
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$data['entity_tab'] = 'health';
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$data['entity_id'] = $v['sensor_id'];
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$data['entity_name'] = $v['sensor_descr'];
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$data['entity_descr'] = $v['sensor_type'];
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break;
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case array_key_exists('mempool_id', $v):
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$data['entity_type'] = 'mempool';
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$data['entity_tab'] = 'health';
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$data['entity_id'] = $v['mempool_id'];
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$data['entity_name'] = $v['mempool_index'];
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$data['entity_descr'] = $v['mempool_descr'];
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break;
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case array_key_exists('storage_id', $v):
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$data['entity_type'] = 'storage';
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$data['entity_tab'] = 'health';
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$data['entity_id'] = $v['storage_id'];
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$data['entity_name'] = $v['storage_index'];
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$data['entity_descr'] = $v['storage_descr'];
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break;
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case array_key_exists('processor_id', $v):
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$data['entity_type'] = 'processor';
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$data['entity_tab'] = 'health';
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$data['entity_id'] = $v['processor_id'];
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$data['entity_name'] = $v['processor_type'];
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$data['entity_descr'] = $v['processor_descr'];
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break;
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case array_key_exists('bgpPeer_id', $v):
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$data['entity_type'] = 'bgp';
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$data['entity_tab'] = 'routing';
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$data['entity_id'] = $v['bgpPeer_id'];
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$data['entity_name'] = 'local: ' . $v['bgpPeerLocalAddr'] . ' - AS' . $obj['bgpLocalAs'];
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$data['entity_descr'] = 'remote: ' . $v['bgpPeerIdentifier'] . ' - AS' . $v['bgpPeerRemoteAs'];
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break;
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case array_key_exists('tunnel_id', $v):
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$data['entity_type'] = 'ipsec_tunnel';
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$data['entity_tab'] = 'routing';
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$data['entity_id'] = $v['tunnel_id'];
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$data['entity_name'] = $v['tunnel_name'];
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$data['entity_descr'] = 'local: ' . $v['local_addr'] . ':' . $v['local_port'] . ', remote: ' . $v['peer_addr'] . ':' . $v['peer_port'];
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break;
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default:
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$data['entity_type'] = 'generic';
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break;
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}
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$alert_message = json_encode($data);
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curl_setopt($curl, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
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if ($opts['es_proxy'] === true) {
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set_curl_proxy($curl);
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}
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curl_setopt($curl, CURLOPT_URL, $host);
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curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
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curl_setopt($curl, CURLOPT_POST, true);
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curl_setopt($curl, CURLOPT_POSTFIELDS, $alert_message);
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$ret = curl_exec($curl);
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$code = curl_getinfo($curl, CURLINFO_HTTP_CODE);
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if ($code != 200 && $code != 201) {
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return $host . ' returned HTTP Status code ' . $code . ' for ' . $alert_message;
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}
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}
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} else {
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$curl = curl_init();
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$alert_message = json_encode($data);
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curl_setopt($curl, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
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if ($opts['es_proxy'] === true) {
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set_curl_proxy($curl);
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}
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curl_setopt($curl, CURLOPT_URL, $host);
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curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
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curl_setopt($curl, CURLOPT_POST, true);
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curl_setopt($curl, CURLOPT_POSTFIELDS, $alert_message);
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$ret = curl_exec($curl);
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$code = curl_getinfo($curl, CURLINFO_HTTP_CODE);
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if ($code != 200 && $code != 201) {
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return $host . ' returned HTTP Status code ' . $code . ' for ' . $alert_message;
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}
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}
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return true;
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}
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public static function configTemplate()
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{
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return [
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'config' => [
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[
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'title' => 'Host',
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'name' => 'es-host',
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'descr' => 'Elasticsearch Host',
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'type' => 'text',
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],
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[
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'title' => 'Port',
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'name' => 'es-port',
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'descr' => 'Elasticsearch Port',
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'type' => 'text',
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],
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[
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'title' => 'Index Pattern',
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'name' => 'es-pattern',
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'descr' => 'Elasticsearch Index Pattern',
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'type' => 'text',
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],
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[
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'title' => 'Use proxy if configured?',
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'name' => 'es-proxy',
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'descr' => 'Elasticsearch Proxy',
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'type' => 'checkbox',
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'default' => false,
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],
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],
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'validation' => [
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'es-host' => 'required|string',
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'es-port' => 'required|string',
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'es-pattern' => 'required|string',
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],
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];
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}
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}
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