示例#1
0
func main() {
	flag.Parse()
	/*//UNCOMMENT TO RUN PROFILER
	go func() {
		log.Println(http.ListenAndServe("localhost:6060", nil))
	}()*/
	// configure home and signature if not default
	if *home != config.Home() {
		config.SetHome(*home)
	}
	if *sig != config.SignatureBase() {
		config.SetSignature(*sig)
	}
	// handle -update
	if *update {
		msg, err := updateSigs()
		if err != nil {
			log.Fatalf("[FATAL] failed to update signature file, %v", err)
		}
		fmt.Println(msg)
		return
	}
	// handle -hash error
	hashT := getHash(*hashf)
	if *hashf != "" && hashT < 0 {
		log.Fatalf("[FATAL] invalid hash type; choose from %s", hashChoices)
	}
	// load and handle signature errors
	s, err := siegfried.Load(config.Signature())
	if err != nil {
		log.Fatalf("[FATAL] error loading signature file, got: %v", err)
	}
	// handle -version
	if *version {
		version := config.Version()
		fmt.Printf("siegfried %d.%d.%d\n%s", version[0], version[1], version[2], s)
		return
	}
	// handle -fpr
	if *fprflag {
		log.Printf("FPR server started at %s. Use CTRL-C to quit.\n", config.Fpr())
		serveFpr(config.Fpr(), s)
		return
	}
	// check -multi
	if *multi > maxMulti || *multi < 1 || (*archive && *multi > 1) {
		log.Println("[WARN] -multi must be > 0 and =< 1024. If -z, -multi must be 1. Resetting -multi to 1")
		*multi = 1
	}
	// start logger
	lg, err := newLogger(*logf)
	if err != nil {
		log.Fatalln(err)
	}
	if config.Slow() || config.Debug() {
		if *serve != "" || *fprflag {
			log.Fatalln("[FATAL] debug and slow logging cannot be run in server mode")
		}
	}
	// start throttle
	if *throttlef != 0 {
		throttle = time.NewTicker(*throttlef)
		defer throttle.Stop()
	}
	// start the printer
	lenCtxts := *multi
	if lenCtxts == 1 {
		lenCtxts = 8
	}
	ctxts := make(chan *context, lenCtxts)
	go printer(ctxts, lg)
	// set default writer
	var w writer
	switch {
	case *csvo:
		w = newCSV(os.Stdout)
	case *jsono:
		w = newJSON(os.Stdout)
	case *droido:
		w = newDroid(os.Stdout)
		if len(s.Fields()) != 1 || len(s.Fields()[0]) != 7 {
			close(ctxts)
			log.Fatalln("[FATAL] DROID output is limited to signature files with a single PRONOM identifier")
		}
	default:
		w = newYAML(os.Stdout)
	}
	// overrite writer with nil writer if logging is to stdout
	if lg != nil && lg.w == os.Stdout {
		w = logWriter{}
	}
	// setup default waitgroup
	wg := &sync.WaitGroup{}
	// setup context pool
	setCtxPool(s, w, wg, hashT, *archive)
	// handle -serve
	if *serve != "" {
		log.Printf("Starting server at %s. Use CTRL-C to quit.\n", *serve)
		listen(*serve, s, ctxts)
		return
	}
	// handle no file/directory argument
	if flag.NArg() != 1 {
		close(ctxts)
		log.Fatalln("[FATAL] expecting a single file or directory argument")
	}

	w.writeHead(s, hashT)
	// support reading list files from stdin
	if flag.Arg(0) == "-" {
		scanner := bufio.NewScanner(os.Stdin)
		for scanner.Scan() {
			info, err := os.Stat(scanner.Text())
			if err != nil {
				info, err = retryStat(scanner.Text(), err)
			}
			if err != nil || info.IsDir() {
				ctx := getCtx(scanner.Text(), "", "", 0)
				ctx.res <- results{fmt.Errorf("failed to identify %s (in scanning mode, inputs must all be files and not directories), got: %v", scanner.Text(), err), nil, nil}
				ctx.wg.Add(1)
				ctxts <- ctx
			} else {
				identifyFile(getCtx(scanner.Text(), "", info.ModTime().Format(time.RFC3339), info.Size()), ctxts, getCtx)
			}
		}
	} else {
		err = identify(ctxts, flag.Arg(0), "", *nr, getCtx)
	}
	wg.Wait()
	close(ctxts)
	w.writeTail()
	// log time elapsed
	if !lg.start.IsZero() {
		fmt.Fprintf(lg.w, "%s %v\n", timeString, time.Since(lg.start))
	}
	if err != nil {
		log.Fatal(err)
	}
	os.Exit(0)
}
示例#2
0
func main() {
	var err error
	if len(os.Args) < 2 {
		log.Fatal(usage)
	}

	switch os.Args[1] {
	case "build":
		err = build.Parse(os.Args[2:])
		if err == nil {
			if build.Arg(0) != "" {
				config.SetSignature(build.Arg(0))
			}
			s := siegfried.New()
			err = makegob(s, getOptions())
		}
	case "add":
		err = build.Parse(os.Args[2:])
		if err == nil {
			if build.Arg(0) != "" {
				config.SetSignature(build.Arg(0))
			}
			var s *siegfried.Siegfried
			s, err = siegfried.Load(config.Signature())
			if err == nil {
				err = makegob(s, getOptions())
			}
		}
	case "harvest":
		err = harvest.Parse(os.Args[2:])
		if err == nil {
			setHarvestOptions()
			err = savereps()
		}
	case "inspect":
		inspect.Usage = func() { fmt.Print(inspectUsage) }
		err = inspect.Parse(os.Args[2:])
		if err == nil {
			input := inspect.Arg(0)
			switch {
			case input == "":
				err = inspectSig(-1)
			case input == "bytematcher", input == "bm":
				err = inspectSig(core.ByteMatcher)
			case input == "containermatcher", input == "cm":
				err = inspectSig(core.ContainerMatcher)
			case input == "namematcher", input == "nm":
				err = inspectSig(core.NameMatcher)
			case input == "mimematcher", input == "mm":
				err = inspectSig(core.MIMEMatcher)
			case input == "riffmatcher", input == "rm":
				err = inspectSig(core.RIFFMatcher)
			case input == "xmlmatcher", input == "xm":
				err = inspectSig(core.XMLMatcher)
			case input == "textmatcher", input == "tm":
				err = inspectSig(core.TextMatcher)
			case input == "priorities", input == "p":
				err = graphPriorities(0)
			case input == "missing-priorities", input == "mp":
				err = graphPriorities(1)
			case input == "implicit-priorities", input == "ip":
				err = graphPriorities(2)
			case filepath.Ext(input) == ".sig":
				config.SetSignature(input)
				err = inspectSig(-1)
			case strings.Contains(input, "fmt"), *inspectMI != "", strings.HasPrefix(input, "fdd"), strings.HasPrefix(input, "@"):
				err = inspectFmt(input)
			default:
				var i int
				i, err = strconv.Atoi(input)
				if err == nil {
					err = blameSig(i)
				} else {
					err = inspectFmt(input)
				}
			}
		}
	default:
		log.Fatal(usage)
	}
	if err != nil {
		log.Fatal(err)
	}
	os.Exit(0)
}