Golang Action.VerifySignature方法代码示例

//.........这里部分代码省略.........
	// if a file is defined, load action from that
	if *file != "/path/to/file" {
		a, err = mig.ActionFromFile(*file)
	} else {
		// otherwise, use interactive mode
		a, err = getActionFromTerminal()
	}
	if err != nil {
		panic(err)
	}

	// set the dates
	if *validfrom == "now" {
		a.ValidFrom = time.Now().UTC()
	} else {
		a.ValidFrom, err = time.Parse("2014-01-01T00:00:00.0Z", *validfrom)
		if err != nil {
			panic(err)
		}
	}
	period, err := time.ParseDuration(*expireafter)
	if err != nil {
		log.Fatal(err)
	}
	a.ExpireAfter = a.ValidFrom.Add(period)

	// compute the signature
	str, err := a.String()
	if err != nil {
		panic(err)
	}
	a.PGPSignature, err = sign.Sign(str, *key)
	if err != nil {
		panic(err)
	}

	a.PGPSignatureDate = time.Now().UTC()

	var jsonAction []byte
	if *pretty {
		jsonAction, err = json.MarshalIndent(a, "", "\t")
	} else {
		jsonAction, err = json.Marshal(a)
	}
	if err != nil {
		panic(err)
	}

	// if asked, url encode the action before marshaling it
	actionstr := string(jsonAction)
	if *urlencode {
		strJsonAction := string(jsonAction)
		actionstr = url.QueryEscape(strJsonAction)
	}

	if *posturl != "" {
		resp, err := http.PostForm(*posturl, url.Values{"action": {actionstr}})
		if err != nil {
			panic(err)
		}
		var buf [512]byte
		reader := resp.Body
		for {
			n, err := reader.Read(buf[0:])
			if err != nil {
				os.Exit(0)
			}
			fmt.Print(string(buf[0:n]))
		}
	}
	// find keyring in default location
	u, err := user.Current()
	if err != nil {
		panic(err)
	}

	// load keyring
	var gnupghome string
	gnupghome = os.Getenv("GNUPGHOME")
	if gnupghome == "" {
		gnupghome = "/.gnupg"
	}
	keyring, err := os.Open(u.HomeDir + gnupghome + "/pubring.gpg")
	if err != nil {
		panic(err)
	}
	defer keyring.Close()

	// syntax checking
	err = a.Validate()
	if err != nil {
		panic(err)
	}

	// syntax checking
	err = a.VerifySignature(keyring)
	if err != nil {
		panic(err)
	}
}

// createAction receives a signed action in a POST request, validates it,
// and write it into the scheduler spool
func createAction(respWriter http.ResponseWriter, request *http.Request) {
	var err error
	opid := mig.GenID()
	var action mig.Action
	resource := cljs.New(request.URL.String())
	defer func() {
		if e := recover(); e != nil {
			ctx.Channels.Log <- mig.Log{OpID: opid, ActionID: action.ID, Desc: fmt.Sprintf("%v", e)}.Err()
			resource.SetError(cljs.Error{Code: fmt.Sprintf("%d", opid), Message: fmt.Sprintf("%v", e)})
			respond(500, resource, respWriter, request, opid)
		}
		ctx.Channels.Log <- mig.Log{OpID: opid, ActionID: action.ID, Desc: "leaving createAction()"}.Debug()
	}()

	// parse the POST body into a mig action
	request.ParseForm()
	postAction := request.FormValue("action")
	err = json.Unmarshal([]byte(postAction), &action)
	if err != nil {
		panic(err)
	}
	ctx.Channels.Log <- mig.Log{OpID: opid, Desc: fmt.Sprintf("Received action for creation '%s'", action)}.Debug()

	// load keyring and validate action
	keyring, err := os.Open(ctx.OpenPGP.PubRing)
	if err != nil {
		panic(err)
	}
	defer keyring.Close()

	err = action.Validate()
	if err != nil {
		panic(err)
	}
	err = action.VerifySignature(keyring)
	if err != nil {
		panic(err)
	}
	action.ID = mig.GenID()
	ctx.Channels.Log <- mig.Log{OpID: opid, ActionID: action.ID, Desc: "Received new action with valid signature"}

	// write action to disk
	destdir := fmt.Sprintf("%s/%d.json", ctx.Directories.Action.New, action.ID)
	newAction, err := json.Marshal(action)
	if err != nil {
		panic(err)
	}
	err = safeWrite(opid, destdir, newAction)
	if err != nil {
		panic(err)
	}
	ctx.Channels.Log <- mig.Log{OpID: opid, ActionID: action.ID, Desc: "Action committed to spool"}

	err = resource.AddItem(cljs.Item{
		Href: "/api/action?actionid=" + fmt.Sprintf("%d", action.ID),
		Data: []cljs.Data{{Name: "action ID " + fmt.Sprintf("%d", action.ID), Value: action}},
	})
	if err != nil {
		panic(err)
	}
	respond(201, resource, respWriter, request, opid)
}

func main() {
	var err error
	var Usage = func() {
		fmt.Fprintf(os.Stderr,
			"Mozilla InvestiGator Action Verifier\n"+
				"usage: %s <-a action file> <-c command file>\n\n"+
				"Command line to verify an action *or* command.\n"+
				"Options:\n",
			os.Args[0])
		flag.PrintDefaults()
	}

	hasaction := false
	hascommand := false

	// command line options
	var actionfile = flag.String("a", "/path/to/action", "Load action from file")
	var commandfile = flag.String("c", "/path/to/command", "Load command from file")
	var pubring = flag.String("pubring", "/path/to/pubring", "Use pubring at <path>")
	flag.Parse()

	// if a file is defined, load action from that
	if *actionfile != "/path/to/action" {
		hasaction = true
	}
	if *commandfile != "/path/to/command" {
		hascommand = true
	}
	if (hasaction && hascommand) || (!hasaction && !hascommand) {
		Usage()
		panic(err)
	}

	var a mig.Action
	if hasaction {
		a, err = mig.ActionFromFile(*actionfile)
		if err != nil {
			panic(err)
		}
	} else {
		c, err := mig.CmdFromFile(*commandfile)
		if err != nil {
			panic(err)
		}
		a = c.Action
	}

	fmt.Printf("%s\n", a)
	err = a.Validate()
	if err != nil {
		fmt.Println(err)
	}

	// find keyring in default location
	u, err := user.Current()
	if err != nil {
		panic(err)
	}

	if *pubring != "/path/to/pubring" {
		// load keyring
		var gnupghome string
		gnupghome = os.Getenv("GNUPGHOME")
		if gnupghome == "" {
			gnupghome = "/.gnupg"
		}
		*pubring = u.HomeDir + gnupghome + "/pubring.gpg"
	}
	keyring, err := os.Open(*pubring)
	if err != nil {
		panic(err)
	}
	defer keyring.Close()

	// syntax checking
	err = a.VerifySignature(keyring)
	if err != nil {
		panic(err)
	}

	fmt.Println("Valid signature")

}