609 lines
19 KiB
TypeScript
609 lines
19 KiB
TypeScript
import _ from 'lodash';
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import moment from 'moment';
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import semver from 'semver';
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import * as utils from '../utils';
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import responseHandler from '../responseHandler';
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import { CachingProxy } from './proxy/cachingProxy';
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import { DBConnector } from './connectors/dbConnector';
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import { ZabbixAPIConnector } from './connectors/zabbix_api/zabbixAPIConnector';
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import { SQLConnector } from './connectors/sql/sqlConnector';
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import { InfluxDBConnector } from './connectors/influxdb/influxdbConnector';
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import { ZabbixConnector } from './types';
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import { joinTriggersWithEvents, joinTriggersWithProblems } from '../problemsHandler';
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import { ProblemDTO, ZBXItem, ZBXItemTag } from '../types';
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interface AppsResponse extends Array<any> {
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appFilterEmpty?: boolean;
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hostids?: any[];
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}
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const REQUESTS_TO_PROXYFY = [
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'getHistory', 'getTrend', 'getGroups', 'getHosts', 'getApps', 'getItems', 'getMacros', 'getItemsByIDs',
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'getEvents', 'getAlerts', 'getHostAlerts', 'getAcknowledges', 'getITService', 'getSLA', 'getProxies',
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'getEventAlerts', 'getExtendedEventData', 'getProblems', 'getEventsHistory', 'getTriggersByIds', 'getScripts', 'getValueMappings'
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];
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const REQUESTS_TO_CACHE = [
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'getGroups', 'getHosts', 'getApps', 'getItems', 'getMacros', 'getItemsByIDs', 'getITService', 'getProxies', 'getValueMappings'
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];
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const REQUESTS_TO_BIND = [
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'getHistory', 'getTrend', 'getMacros', 'getItemsByIDs', 'getEvents', 'getAlerts', 'getHostAlerts',
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'getAcknowledges', 'getITService', 'acknowledgeEvent', 'getProxies', 'getEventAlerts',
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'getExtendedEventData', 'getScripts', 'executeScript', 'getValueMappings'
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];
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export class Zabbix implements ZabbixConnector {
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enableDirectDBConnection: boolean;
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cachingProxy: CachingProxy;
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zabbixAPI: ZabbixAPIConnector;
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getHistoryDB: any;
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dbConnector: any;
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getTrendsDB: any;
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version: string;
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getHistory: (items, timeFrom, timeTill) => Promise<any>;
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getTrend: (items, timeFrom, timeTill) => Promise<any>;
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getItemsByIDs: (itemids) => Promise<any>;
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getEvents: (objectids, timeFrom, timeTo, showEvents, limit?) => Promise<any>;
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getAlerts: (itemids, timeFrom?, timeTo?) => Promise<any>;
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getHostAlerts: (hostids, applicationids, options?) => Promise<any>;
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getAcknowledges: (eventids) => Promise<any>;
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getITService: (serviceids?) => Promise<any>;
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acknowledgeEvent: (eventid, message) => Promise<any>;
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getProxies: () => Promise<any>;
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getEventAlerts: (eventids) => Promise<any>;
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getExtendedEventData: (eventids) => Promise<any>;
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getMacros: (hostids: any[]) => Promise<any>;
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getValueMappings: () => Promise<any>;
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constructor(options) {
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const {
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basicAuth,
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withCredentials,
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cacheTTL,
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enableDirectDBConnection,
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dbConnectionDatasourceId,
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dbConnectionDatasourceName,
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dbConnectionRetentionPolicy,
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datasourceId,
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} = options;
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this.enableDirectDBConnection = enableDirectDBConnection;
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// Initialize caching proxy for requests
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const cacheOptions = {
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enabled: true,
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ttl: cacheTTL
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};
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this.cachingProxy = new CachingProxy(cacheOptions);
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this.zabbixAPI = new ZabbixAPIConnector(basicAuth, withCredentials, datasourceId);
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this.proxifyRequests();
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this.cacheRequests();
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this.bindRequests();
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if (enableDirectDBConnection) {
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const connectorOptions: any = { dbConnectionRetentionPolicy };
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this.initDBConnector(dbConnectionDatasourceId, dbConnectionDatasourceName, connectorOptions)
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.then(() => {
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this.getHistoryDB = this.cachingProxy.proxifyWithCache(this.dbConnector.getHistory, 'getHistory', this.dbConnector);
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this.getTrendsDB = this.cachingProxy.proxifyWithCache(this.dbConnector.getTrends, 'getTrends', this.dbConnector);
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});
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}
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}
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initDBConnector(datasourceId, datasourceName, options) {
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return DBConnector.loadDatasource(datasourceId, datasourceName)
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.then(ds => {
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const connectorOptions: any = { datasourceId, datasourceName };
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if (ds.type === 'influxdb') {
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connectorOptions.retentionPolicy = options.dbConnectionRetentionPolicy;
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this.dbConnector = new InfluxDBConnector(connectorOptions);
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} else {
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this.dbConnector = new SQLConnector(connectorOptions);
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}
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return this.dbConnector;
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});
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}
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proxifyRequests() {
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for (const request of REQUESTS_TO_PROXYFY) {
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this.zabbixAPI[request] = this.cachingProxy.proxify(this.zabbixAPI[request], request, this.zabbixAPI);
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}
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}
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cacheRequests() {
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for (const request of REQUESTS_TO_CACHE) {
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this.zabbixAPI[request] = this.cachingProxy.cacheRequest(this.zabbixAPI[request], request, this.zabbixAPI);
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}
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}
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bindRequests() {
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for (const request of REQUESTS_TO_BIND) {
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this[request] = this.zabbixAPI[request].bind(this.zabbixAPI);
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}
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}
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/**
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* Perform test query for Zabbix API and external history DB.
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* @return {object} test result object:
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* ```
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* {
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* zabbixVersion,
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* dbConnectorStatus: {
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* dsType,
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* dsName
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* }
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* }
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* ```
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*/
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testDataSource() {
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let zabbixVersion;
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let dbConnectorStatus;
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return this.getVersion()
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.then(version => {
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zabbixVersion = version;
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return this.getAllGroups();
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})
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.then(() => {
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if (this.enableDirectDBConnection) {
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return this.dbConnector.testDataSource();
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} else {
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return Promise.resolve();
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}
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})
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.catch(error => {
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return Promise.reject(error);
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})
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.then(testResult => {
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if (testResult) {
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dbConnectorStatus = {
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dsType: this.dbConnector.datasourceTypeName,
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dsName: this.dbConnector.datasourceName
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};
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}
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return { zabbixVersion, dbConnectorStatus };
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});
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}
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async getVersion() {
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if (!this.version) {
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if (this.zabbixAPI.version) {
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this.version = this.zabbixAPI.version;
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} else {
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this.version = await this.zabbixAPI.initVersion();
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}
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}
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return this.version;
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}
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supportsApplications() {
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const version = this.version || this.zabbixAPI.version;
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return version ? semver.lt(version, '5.4.0') : true;
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}
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supportSLA() {
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const version = this.version || this.zabbixAPI.version;
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return version ? semver.gte(version, '6.0.0') : true;
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}
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isZabbix54OrHigher() {
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const version = this.version || this.zabbixAPI.version;
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return version ? semver.gte(version, '5.4.0') : false;
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}
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getItemsFromTarget(target, options) {
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const parts = ['group', 'host', 'application', 'itemTag', 'item'];
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const filters = _.map(parts, p => target[p].filter);
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return this.getItems(...filters, options);
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}
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getHostsFromTarget(target) {
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const parts = ['group', 'host', 'application'];
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const filters = _.map(parts, p => target[p].filter);
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return Promise.all([
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this.getHosts(...filters),
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this.getApps(...filters),
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]).then(results => {
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const hosts = results[0];
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let apps: AppsResponse = results[1];
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if (apps.appFilterEmpty) {
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apps = [];
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}
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return [hosts, apps];
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});
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}
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getAllGroups() {
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return this.zabbixAPI.getGroups();
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}
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getGroups(groupFilter) {
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return this.getAllGroups()
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.then(groups => findByFilter(groups, groupFilter));
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}
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/**
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* Get list of host belonging to given groups.
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*/
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getAllHosts(groupFilter) {
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return this.getGroups(groupFilter)
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.then(groups => {
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const groupids = _.map(groups, 'groupid');
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return this.zabbixAPI.getHosts(groupids);
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});
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}
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getHosts(groupFilter?, hostFilter?) {
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return this.getAllHosts(groupFilter)
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.then(hosts => findByFilter(hosts, hostFilter));
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}
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/**
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* Get list of applications belonging to given groups and hosts.
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*/
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async getAllApps(groupFilter, hostFilter) {
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await this.getVersion();
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if (!this.supportsApplications()) {
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return [];
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}
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return this.getHosts(groupFilter, hostFilter)
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.then(hosts => {
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const hostids = _.map(hosts, 'hostid');
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return this.zabbixAPI.getApps(hostids);
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});
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}
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async getApps(groupFilter?, hostFilter?, appFilter?): Promise<AppsResponse> {
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await this.getVersion();
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const skipAppFilter = !this.supportsApplications();
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return this.getHosts(groupFilter, hostFilter)
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.then(hosts => {
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const hostids = _.map(hosts, 'hostid');
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if (appFilter && !skipAppFilter) {
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return this.zabbixAPI.getApps(hostids)
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.then(apps => filterByQuery(apps, appFilter));
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} else {
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const appsResponse: AppsResponse = hostids;
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appsResponse.hostids = hostids;
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appsResponse.appFilterEmpty = true;
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return Promise.resolve(appsResponse);
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}
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});
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}
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async getItemTags(groupFilter?, hostFilter?, itemTagFilter?) {
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const items = await this.getAllItems(groupFilter, hostFilter, null, null, {});
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let tags: ZBXItemTag[] = _.flatten(items.map((item: ZBXItem) => {
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if (item.tags) {
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return item.tags;
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} else {
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return [];
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}
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}));
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tags = _.uniqBy(tags, t => t.tag + t.value || '');
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const tagsStr = tags.map(t => ({ name: utils.itemTagToString(t) }));
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return findByFilter(tagsStr, itemTagFilter);
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}
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async getAllItems(groupFilter, hostFilter, appFilter, itemTagFilter, options: any = {}) {
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const apps = await this.getApps(groupFilter, hostFilter, appFilter);
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let items: any[];
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if (this.isZabbix54OrHigher()) {
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items = await this.zabbixAPI.getItems(apps.hostids, undefined, options.itemtype);
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if (itemTagFilter) {
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items = filterItemsByTag(items, itemTagFilter);
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}
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} else {
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if (apps.appFilterEmpty) {
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items = await this.zabbixAPI.getItems(apps.hostids, undefined, options.itemtype);
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} else {
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const appids = _.map(apps, 'applicationid');
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items = await this.zabbixAPI.getItems(undefined, appids, options.itemtype);
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}
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}
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if (!options.showDisabledItems) {
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items = _.filter(items, { 'status': '0' });
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}
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return await this.expandUserMacro(items, false);
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}
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expandUserMacro(items, isTriggerItem) {
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const hostids = getHostIds(items);
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return this.getMacros(hostids)
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.then(macros => {
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_.forEach(items, item => {
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if (utils.containsMacro(isTriggerItem ? item.url : item.name)) {
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if (isTriggerItem) {
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item.url = utils.replaceMacro(item, macros, isTriggerItem);
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} else {
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item.name = utils.replaceMacro(item, macros);
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}
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}
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});
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return items;
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});
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}
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getItems(groupFilter?, hostFilter?, appFilter?, itemTagFilter?, itemFilter?, options = {}) {
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return this.getAllItems(groupFilter, hostFilter, appFilter, itemTagFilter, options)
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.then(items => filterByQuery(items, itemFilter));
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}
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getItemValues(groupFilter?, hostFilter?, appFilter?, itemFilter?, options: any = {}) {
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return this.getItems(groupFilter, hostFilter, appFilter, null, itemFilter, options).then(items => {
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let timeRange = [moment().subtract(2, 'h').unix(), moment().unix()];
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if (options.range) {
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timeRange = [options.range.from.unix(), options.range.to.unix()];
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}
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const [timeFrom, timeTo] = timeRange;
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return this.zabbixAPI.getHistory(items, timeFrom, timeTo).then(history => {
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if (history) {
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const values = _.uniq(history.map(v => v.value));
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return values.map(value => ({ name: value }));
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} else {
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return [];
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}
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});
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});
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}
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getITServices(itServiceFilter) {
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return this.zabbixAPI.getITService()
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.then(itServices => findByFilter(itServices, itServiceFilter));
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}
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getProblems(groupFilter, hostFilter, appFilter, proxyFilter?, options?): Promise<ProblemDTO[]> {
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const promises = [
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this.getGroups(groupFilter),
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this.getHosts(groupFilter, hostFilter),
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this.getApps(groupFilter, hostFilter, appFilter)
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];
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return Promise.all(promises)
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.then(results => {
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const [filteredGroups, filteredHosts, filteredApps] = results;
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const query: any = {};
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if (appFilter) {
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query.applicationids = _.flatten(_.map(filteredApps, 'applicationid'));
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}
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if (hostFilter && hostFilter !== '/.*/') {
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query.hostids = _.map(filteredHosts, 'hostid');
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}
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if (groupFilter) {
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query.groupids = _.map(filteredGroups, 'groupid');
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}
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return query;
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})
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.then(query => this.zabbixAPI.getProblems(query.groupids, query.hostids, query.applicationids, options))
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.then(problems => {
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const triggerids = problems?.map(problem => problem.objectid);
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return Promise.all([
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Promise.resolve(problems),
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this.zabbixAPI.getTriggersByIds(triggerids)
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]);
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})
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.then(([problems, triggers]) => joinTriggersWithProblems(problems, triggers))
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.then(triggers => this.filterTriggersByProxy(triggers, proxyFilter));
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// .then(triggers => this.expandUserMacro.bind(this)(triggers, true));
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}
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getProblemsHistory(groupFilter, hostFilter, appFilter, proxyFilter?, options?): Promise<ProblemDTO[]> {
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const { valueFromEvent } = options;
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const promises = [
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this.getGroups(groupFilter),
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this.getHosts(groupFilter, hostFilter),
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this.getApps(groupFilter, hostFilter, appFilter)
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];
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return Promise.all(promises)
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.then(results => {
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const [filteredGroups, filteredHosts, filteredApps] = results;
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const query: any = {};
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if (appFilter) {
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query.applicationids = _.flatten(_.map(filteredApps, 'applicationid'));
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}
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if (hostFilter) {
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query.hostids = _.map(filteredHosts, 'hostid');
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}
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if (groupFilter) {
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query.groupids = _.map(filteredGroups, 'groupid');
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}
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return query;
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})
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.then(query => this.zabbixAPI.getEventsHistory(query.groupids, query.hostids, query.applicationids, options))
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.then(problems => {
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const triggerids = problems?.map(problem => problem.objectid);
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return Promise.all([Promise.resolve(problems), this.zabbixAPI.getTriggersByIds(triggerids)]);
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})
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.then(([problems, triggers]) => joinTriggersWithEvents(problems, triggers, { valueFromEvent }))
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.then(triggers => this.filterTriggersByProxy(triggers, proxyFilter));
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// .then(triggers => this.expandUserMacro.bind(this)(triggers, true));
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}
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filterTriggersByProxy(triggers, proxyFilter) {
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return this.getFilteredProxies(proxyFilter)
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.then(proxies => {
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if (proxyFilter && proxyFilter !== '/.*/' && triggers) {
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const proxy_ids = proxies.map(proxy => proxy.proxyid);
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triggers = triggers.filter(trigger => {
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for (let i = 0; i < trigger.hosts.length; i++) {
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const host = trigger.hosts[i];
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if (proxy_ids.includes(host.proxy_hostid)) {
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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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return triggers;
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});
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}
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getFilteredProxies(proxyFilter) {
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return this.zabbixAPI.getProxies()
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.then(proxies => {
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proxies.forEach(proxy => proxy.name = proxy.host);
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return findByFilter(proxies, proxyFilter);
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});
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}
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getHistoryTS(items, timeRange, request) {
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const [timeFrom, timeTo] = timeRange;
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if (this.enableDirectDBConnection) {
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return this.getHistoryDB(items, timeFrom, timeTo, request)
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.then(history => responseHandler.dataResponseToTimeSeries(history, items, request));
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} else {
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return this.zabbixAPI.getHistory(items, timeFrom, timeTo)
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.then(history => responseHandler.handleHistory(history, items));
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}
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}
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getTrends(items, timeRange, request) {
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const [timeFrom, timeTo] = timeRange;
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if (this.enableDirectDBConnection) {
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return this.getTrendsDB(items, timeFrom, timeTo, request)
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.then(history => responseHandler.dataResponseToTimeSeries(history, items, request));
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} else {
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const valueType = request.consolidateBy || request.valueType;
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return this.zabbixAPI.getTrend(items, timeFrom, timeTo)
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.then(history => responseHandler.handleTrends(history, items, valueType))
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.then(responseHandler.sortTimeseries); // Sort trend data, issue #202
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}
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}
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getHistoryText(items, timeRange, target) {
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const [timeFrom, timeTo] = timeRange;
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if (items.length) {
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return this.zabbixAPI.getHistory(items, timeFrom, timeTo)
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.then(history => {
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if (target.resultFormat === 'table') {
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return responseHandler.handleHistoryAsTable(history, items, target);
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} else {
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return responseHandler.handleText(history, items, target);
|
|
}
|
|
});
|
|
} else {
|
|
return Promise.resolve([]);
|
|
}
|
|
}
|
|
|
|
async getSLA(itservices, timeRange, target, options) {
|
|
const itServiceIds = _.map(itservices, 'serviceid');
|
|
if (this.supportSLA()) {
|
|
const slaResponse = await this.zabbixAPI.getSLA60(itServiceIds, timeRange, options);
|
|
return _.map(itServiceIds, serviceid => {
|
|
const itservice = _.find(itservices, { 'serviceid': serviceid });
|
|
return responseHandler.handleSLAResponse(itservice, target.slaProperty, slaResponse);
|
|
});
|
|
}
|
|
const slaResponse = await this.zabbixAPI.getSLA(itServiceIds, timeRange, options);
|
|
return _.map(itServiceIds, serviceid => {
|
|
const itservice = _.find(itservices, { 'serviceid': serviceid });
|
|
return responseHandler.handleSLAResponse(itservice, target.slaProperty, slaResponse);
|
|
});
|
|
}
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
/**
|
|
* Find group, host, app or item by given name.
|
|
* @param list list of groups, apps or other
|
|
* @param name visible name
|
|
* @return array with finded element or empty array
|
|
*/
|
|
function findByName(list, name) {
|
|
const finded = _.find(list, { 'name': name });
|
|
if (finded) {
|
|
return [finded];
|
|
} else {
|
|
return [];
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Different hosts can contains applications and items with same name.
|
|
* For this reason use _.filter, which return all elements instead _.find,
|
|
* which return only first finded.
|
|
* @param {[type]} list list of elements
|
|
* @param {[type]} name app name
|
|
* @return {[type]} array with finded element or empty array
|
|
*/
|
|
function filterByName(list, name) {
|
|
const finded = _.filter(list, { 'name': name });
|
|
if (finded) {
|
|
return finded;
|
|
} else {
|
|
return [];
|
|
}
|
|
}
|
|
|
|
function filterByRegex(list, regex) {
|
|
const filterPattern = utils.buildRegex(regex);
|
|
return _.filter(list, (zbx_obj) => {
|
|
return filterPattern.test(zbx_obj.name);
|
|
});
|
|
}
|
|
|
|
function findByFilter(list, filter) {
|
|
if (utils.isRegex(filter)) {
|
|
return filterByRegex(list, filter);
|
|
} else {
|
|
return findByName(list, filter);
|
|
}
|
|
}
|
|
|
|
function filterByQuery(list, filter) {
|
|
if (utils.isRegex(filter)) {
|
|
return filterByRegex(list, filter);
|
|
} else {
|
|
return filterByName(list, filter);
|
|
}
|
|
}
|
|
|
|
function getHostIds(items) {
|
|
const hostIds = _.map(items, item => {
|
|
return _.map(item.hosts, 'hostid');
|
|
});
|
|
return _.uniq(_.flatten(hostIds));
|
|
}
|
|
|
|
function filterItemsByTag(items: any[], itemTagFilter: string) {
|
|
if (utils.isRegex(itemTagFilter)) {
|
|
const filterPattern = utils.buildRegex(itemTagFilter);
|
|
return items.filter((item) => {
|
|
if (item.tags) {
|
|
const tags: string[] = item.tags.map(t => utils.itemTagToString(t));
|
|
return tags.some((tag) => {
|
|
return filterPattern.test(tag);
|
|
});
|
|
} else {
|
|
return false;
|
|
}
|
|
});
|
|
} else {
|
|
return items.filter(item => {
|
|
if (item.tags) {
|
|
const tags: string[] = item.tags.map(t => utils.itemTagToString(t));
|
|
return tags.includes(itemTagFilter);
|
|
} else {
|
|
return false;
|
|
}
|
|
});
|
|
}
|
|
}
|