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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 26x 3x 1x 16x 16x 1x 16x 16x 16x 16x 16x 16x 16x 16x 1x 3x 3x 3x 3x 3x 3x 3x 3x 3x 1x | /** * ElasticSearch Emitter. Store Request/Response records in Elasticsearch */ 'use strict'; var os = require('os'); var util = require('util'); var http = require('http'); var url = require('url'); var request = require('request'); var debug = require('debug')('sws:elastic'); var swsUtil = require('./swsUtil'); var moment = require('moment'); var indexTemplate = require('../schema/elasticsearch/api_index_template.json'); const ES_MAX_BUFF = 50; // ElasticSearch Emitter. Store Request/Response records in Elasticsearch function swsElasticEmitter() { // Options this.options = null; this.indexBuffer = ''; this.bufferCount = 0; this.lastFlush = 0; this.elasticURL = null; this.elasticURLBulk = null; this.elasticProto = null; this.elasticHostname = null; this.elasticPort = null; this.elasticUsername = null; this.elasticPassword = null; this.indexPrefix = "api-"; this.enabled = false; } // Initialize swsElasticEmitter.prototype.initialize = function (swsOptions) { Iif(typeof swsOptions === 'undefined') return; Iif(!swsOptions) return; this.options = swsOptions; // Set or detect hostname Iif(!(swsUtil.supportedOptions.elasticsearch in swsOptions)) { debug('Elasticsearch is disabled'); return; } this.elasticURL = swsOptions[swsUtil.supportedOptions.elasticsearch]; Iif (!this.elasticURL) { debug('Elasticsearch url is invalid'); return; } this.elasticURLBulk = this.elasticURL +'/_bulk'; Eif(swsUtil.supportedOptions.elasticsearchIndexPrefix in swsOptions) { this.indexPrefix = swsOptions[swsUtil.supportedOptions.elasticsearchIndexPrefix]; } Eif(swsUtil.supportedOptions.elasticsearchUsername in swsOptions) { this.elasticUsername = swsOptions[swsUtil.supportedOptions.elasticsearchUsername]; } Eif(swsUtil.supportedOptions.elasticsearchPassword in swsOptions) { this.elasticPassword = swsOptions[swsUtil.supportedOptions.elasticsearchPassword]; } // Check / Initialize schema this.initTemplate(); this.enabled = true; }; // initialize index template swsElasticEmitter.prototype.initTemplate = function(rrr) { var that = this; var requiredTemplateVersion = indexTemplate.version; // Check if there is a template var templateURL = this.elasticURL+'/_template/template_api'; var getOptions = {url:templateURL, json:true}; var putOptions = {url:templateURL, json:indexTemplate}; Iif (this.elasticUsername && this.elasticPassword) { var auth = { username: this.elasticUsername, password: this.elasticPassword, } getOptions.auth = auth; putOptions.auth = auth; } request.get(getOptions, function (error, response, body) { Iif(error) { debug("Error querying template:", JSON.stringify(error) ); }else { var initializeNeeded = false; Eif(response.statusCode === 404){ initializeNeeded = true; }else if(response.statusCode === 200){ if( 'template_api' in body ) { if (!('version' in body.template_api) || (body.template_api.version < requiredTemplateVersion)) { initializeNeeded = true; } } } Eif(initializeNeeded){ request.put(putOptions, function (error, response, body) { Iif(error) { debug("Failed to update template:", JSON.stringify(error)); } }); } } }); }; // Update timeline and stats per tick swsElasticEmitter.prototype.tick = function (ts,totalElapsedSec) { // Flush if buffer is not empty and not flushed in more than 1 second if( (this.bufferCount > 0) && ((ts-this.lastFlush) >= 1000) ){ this.flush(); } }; // Pre-process RRR swsElasticEmitter.prototype.preProcessRecord = function(rrr){ // handle custom attributes Iif('attrs' in rrr){ var attrs = rrr.attrs; for(var attrname in attrs){ attrs[attrname] = swsUtil.swsStringValue(attrs[attrname]); } } Iif('attrsint' in rrr){ var intattrs = rrr.attrsint; for(var intattrname in intattrs){ intattrs[intattrname] = swsUtil.swsNumValue(intattrs[intattrname]); } } }; // Index Request Response Record swsElasticEmitter.prototype.processRecord = function(rrr){ Iif(!this.enabled){ return; } this.preProcessRecord(rrr); // Create metadata var indexName = this.indexPrefix+moment(rrr['@timestamp']).utc().format('YYYY.MM.DD'); var meta = {index:{_index:indexName,_type:'api',_id:rrr.id}}; // Add to buffer this.indexBuffer += JSON.stringify(meta) + '\n'; this.indexBuffer += JSON.stringify(rrr) + '\n'; this.bufferCount++; Iif( this.bufferCount >= ES_MAX_BUFF ) { this.flush(); } }; swsElasticEmitter.prototype.flush = function(){ Iif(!this.enabled){ return; } this.lastFlush = Date.now(); var options = { url: this.elasticURLBulk, headers: { 'Content-Type': 'application/x-ndjson' }, body: this.indexBuffer }; Iif (this.elasticUsername && this.elasticPassword) { options.auth = { username: this.elasticUsername, password: this.elasticPassword, } } request.post(options, function (error, response, body) { Iif (error) { debug("Indexing Error:", JSON.stringify(error) ); } Iif (response && ('statusCode' in response) && (response.statusCode !== 200)) { debug('Indexing Error: %d %s',response.statusCode, response.message); } }); this.indexBuffer = ''; this.bufferCount = 0; }; module.exports = swsElasticEmitter; |