Function showToken

cmd/jwt/main.go:266–296

showToken pretty-prints the token on the command line.

()

// showToken pretty-prints the token on the command line.
func showToken() error {
	// get the token
	tokData, err := loadData(*flagShow)
	if err != nil {
		return fmt.Errorf("couldn't read token: %w", err)
	}

	// trim possible whitespace from token
	tokData = regexp.MustCompile(`\s*$`).ReplaceAll(tokData, []byte{})
	if *flagDebug {
		fmt.Fprintf(os.Stderr, "Token len: %v bytes\n", len(tokData))
	}

	token, _, err := jwt.NewParser().ParseUnverified(string(tokData), make(jwt.MapClaims))
	if err != nil {
		return fmt.Errorf("malformed token: %w", err)
	}

	// Print the token details
	fmt.Println("Header:")
	if err := printJSON(token.Header); err != nil {
		return fmt.Errorf("failed to output header: %w", err)
	}

	fmt.Println("Claims:")
	if err := printJSON(token.Claims); err != nil {
		return fmt.Errorf("failed to output claims: %w", err)
	}

	return nil
}

func isEs() bool {
	return strings.HasPrefix(*flagAlg, "ES")