예제 #1
0
파일: server.go 프로젝트: jasonish/evebox
func Main(args []string) {

	var err error

	log.Info("This is EveBox Server version %v (rev: %v)", core.BuildVersion, core.BuildRev)

	flagset := flag.NewFlagSet("server", flag.ExitOnError)

	flagset.StringVarP(&opts.ElasticSearchUri, "elasticsearch", "e", "", "Elastic Search URI (default: http://localhost:9200")
	flagset.StringVarP(&opts.ElasticSearchIndex, "index", "i", "", "Elastic Search Index (default: logstash)")
	flagset.StringVarP(&opts.Port, "port", "p", "5636", "Port to bind to")
	flagset.StringVarP(&opts.Host, "host", "", "0.0.0.0", "Host to bind to")
	flagset.StringVarP(&opts.DevServerUri, "dev", "", "", "Frontend development server URI")
	flagset.BoolVarP(&opts.Version, "version", "", false, "Show version")
	flagset.StringVarP(&opts.Config, "config", "c", "", "Configuration filename")
	flagset.BoolVarP(&opts.NoCheckCertificate, "no-check-certificate", "k", false, "Disable certificate check for Elastic Search")

	flagset.BoolVarP(&opts.Sqlite, "sqlite", "", false, "Use SQLite for the event store")

	flagset.Parse(args[0:])

	if opts.Version {
		VersionMain()
		return
	}

	log.SetLevel(log.DEBUG)

	// If no configuration was provided, see if evebox.yaml exists
	// in the current directory.
	if opts.Config == "" {
		_, err = os.Stat("./evebox.yaml")
		if err == nil {
			opts.Config = "./evebox.yaml"
		}
	}
	if opts.Config != "" {
		log.Printf("Loading configuration file %s.\n", opts.Config)
		conf, err = config.LoadConfig(opts.Config)
		if err != nil {
			log.Fatal(err)
		}
	}

	conf.ElasticSearchIndex = getElasticSearchIndex()
	log.Info("Using ElasticSearch Index %s.", conf.ElasticSearchIndex)

	appContext := server.AppContext{
		Config: conf,
	}
	elasticSearch := elasticsearch.New(getElasticSearchUrl())
	elasticSearch.SetEventIndex(conf.ElasticSearchIndex)
	elasticSearch.InitKeyword()
	pingResponse, err := elasticSearch.Ping()
	if err != nil {
		log.Error("Failed to ping Elastic Search: %v", err)
	} else {
		log.Info("Connected to Elastic Search (version: %s)",
			pingResponse.Version.Number)
	}
	appContext.ElasticSearch = elasticSearch
	appContext.EventService = elasticsearch.NewEventService(elasticSearch)
	appContext.AlertQueryService = elasticsearch.NewAlertQueryService(elasticSearch)
	appContext.EventQueryService = elasticsearch.NewEventQueryService(elasticSearch)
	appContext.ReportService = elasticsearch.NewReportService(elasticSearch)

	appContext.Vars.DevWebAppServerUrl = opts.DevServerUri

	var datastoreType string = "elasticsearch"
	if opts.Sqlite {
		datastoreType = "sqlite"
	}

	if datastoreType == "elasticsearch" {
		appContext.DataStore, err = elasticsearch.NewDataStore(elasticSearch)
		if err != nil {
			log.Fatal(err)
		}
	} else if datastoreType == "sqlite" {
		appContext.DataStore, err = sqlite.NewDataStore()
		if err != nil {
			log.Fatal(err)
		}
	}

	httpServer := server.NewServer(appContext)
	err = httpServer.Start(opts.Host + ":" + opts.Port)
	if err != nil {
		log.Fatal(err)
	}
}
예제 #2
0
파일: esimport.go 프로젝트: jasonish/evebox
func Main(args []string) {

	conf := configure(args)

	if conf.BatchSize < 1 {
		log.Fatal("Batch size must be greater than 0")
	}

	if conf.Url == "" {
		log.Error("error: --elasticsearch is a required parameter")
		usage()
		os.Exit(1)
	}

	if conf.InputFilename == "" {
		log.Fatal("error: no input file provided")
	}

	if conf.Bookmark && conf.BookmarkPath == "" {
		conf.BookmarkPath = fmt.Sprintf("%s.bookmark", conf.InputFilename)
		log.Info("Using bookmark file %s", conf.BookmarkPath)
	}

	es := elasticsearch.New(conf.Url)
	es.DisableCertCheck(conf.DisableCertificateCheck)
	if conf.Username != "" || conf.Password != "" {
		if err := es.SetUsernamePassword(conf.Username,
			conf.Password); err != nil {
			log.Fatal("Failed to set username and password: %v", err)
		}
	}
	response, err := es.Ping()
	if err != nil {
		log.Fatal("error: failed to ping Elastic Search:", err)
	}
	log.Info("Connected to Elastic Search v%s (cluster:%s; name: %s)",
		response.Version.Number, response.ClusterName, response.Name)
	majorVersion := response.MajorVersion()

	// Check if the template exists.
	templateExists, err := es.CheckTemplate(conf.Index)
	if !templateExists {
		log.Info("Template %s does not exist, creating...", conf.Index)
		err = es.LoadTemplate(conf.Index, majorVersion)
		if err != nil {
			log.Fatal("Failed to create template:", err)
		}
	} else {
		log.Info("Template %s exists, will not create.", conf.Index)
	}

	var geoipFilter *eve.GeoipFilter
	tagsFilter := &eve.TagsFilter{}

	if !conf.DisableGeoIp {
		geoipdb, err := geoip.NewGeoIpDb(conf.GeoIpDatabase)
		if err != nil {
			log.Notice("Failed to load GeoIP database: %v", err)
		} else {
			log.Info("Using GeoIP database %s, %s", geoipdb.Type(), geoipdb.BuildDate())
			geoipFilter = eve.NewGeoipFilter(geoipdb)
		}
	}

	indexer := elasticsearch.NewIndexer(es, conf.DisableCertificateCheck)
	indexer.IndexPrefix = conf.Index

	reader, err := evereader.New(conf.InputFilename)
	if err != nil {
		log.Fatal(err)
	}

	// Initialize bookmarking...
	var bookmarker *evereader.Bookmarker = nil
	if conf.Bookmark {
		bookmarker = &evereader.Bookmarker{
			Filename: conf.BookmarkPath,
			Reader:   reader,
		}
		err := bookmarker.Init(conf.End)
		if err != nil {
			log.Fatal(err)
		}
	} else if conf.End {
		log.Info("Jumping to end of file.")
		err := reader.SkipToEnd()
		if err != nil {
			log.Fatal(err)
		}
	}

	count := uint64(0)
	lastStatTs := time.Now()
	lastStatCount := uint64(0)
	startTime := time.Now()

	// Number of EOFs in last stat interval.
	eofs := uint64(0)

	go func() {
		err := indexer.Run()
		if err != nil {
			log.Fatal("Elastic Search indexer connection unexpectedly closed:", err)
		} else {
			log.Debug("Indexer exited without issue.")
		}
	}()

	for {
		eof := false
		event, err := reader.Next()
		if err != nil {
			if err == io.EOF {
				eof = true
				eofs++
			} else if _, ok := err.(evereader.MalformedEventError); ok {
				log.Error("Failed to read event but will continue: %v", err)
			} else {
				log.Fatalf("Unrecoverable error reading event: %v", err)
			}
		}

		if event != nil {

			if geoipFilter != nil {
				geoipFilter.AddGeoIP(event)
			}

			tagsFilter.Filter(event)

			if conf.stdout {
				asJson, err := json.Marshal(event)
				if err != nil {
					log.Error("Failed to print event as json: %v", err)
				} else {
					fmt.Println(string(asJson))
				}
			}

			indexer.IndexRawEvent(event)
			count++
		}

		if eof || (count > 0 && count%conf.BatchSize == 0) {
			var bookmark *evereader.Bookmark = nil

			if conf.Bookmark {
				bookmark = bookmarker.GetBookmark()
			}

			response, err := indexer.FlushConnection()
			if err != nil {
				log.Fatal(err)
			}
			if response != nil {
				log.Debug("Indexed %d events {errors=%v}", len(response.Items),
					response.Errors)
			}

			if conf.Bookmark {
				bookmarker.WriteBookmark(bookmark)
			}
		}

		now := time.Now()
		if now.Sub(lastStatTs).Seconds() > 1 && now.Second() == 0 {

			// Calculate the lag in bytes, that is the number of bytes behind
			// the end of file we are.
			lag, err := GetLag(reader)
			if err != nil {
				log.Error("Failed to calculate lag: %v", err)
			}

			log.Info("Total: %d; Last minute: %d; Avg: %.2f/s, EOFs: %d; Lag (bytes): %d",
				count,
				count-lastStatCount,
				float64(count-lastStatCount)/(now.Sub(lastStatTs).Seconds()),
				eofs,
				lag)
			lastStatTs = now
			lastStatCount = count
			eofs = 0
		}

		if eof {
			if conf.oneshot {
				break
			} else {
				time.Sleep(1 * time.Second)
			}
		}
	}

	totalTime := time.Since(startTime)

	if conf.oneshot {
		log.Info("Indexed %d events: time=%.2fs; avg=%d/s", count, totalTime.Seconds(),
			uint64(float64(count)/totalTime.Seconds()))
	}
}