package main import ( "flag" "fmt" "html" "log" "math/rand" "net/http" "os" "reflect" "regexp" "strconv" "time" // Server profiler _ "net/http/pprof" "github.com/smallstep/certificates/authority" "github.com/smallstep/certificates/commands" "github.com/smallstep/cli/command" "github.com/smallstep/cli/command/version" "github.com/smallstep/cli/config" "github.com/smallstep/cli/usage" "github.com/urfave/cli" ) // commit and buildTime are filled in during build by the Makefile var ( BuildTime = "N/A" Version = "N/A" ) func init() { config.Set("Smallstep CA", Version, BuildTime) authority.GlobalVersion.Version = Version rand.Seed(time.Now().UnixNano()) } // appHelpTemplate contains the modified template for the main app var appHelpTemplate = `## NAME **{{.HelpName}}** -- {{.Usage}} ## USAGE {{if .UsageText}}{{.UsageText}}{{else}}**{{.HelpName}}**{{if .Commands}} {{end}} {{if .ArgsUsage}}{{.ArgsUsage}}{{else}}_[arguments]_{{end}}{{end}}{{if .Description}} ## DESCRIPTION {{.Description}}{{end}}{{if .VisibleCommands}} ## COMMANDS {{range .VisibleCategories}}{{if .Name}}{{.Name}}:{{end}} ||| |---|---|{{range .VisibleCommands}} | **{{join .Names ", "}}** | {{.Usage}} |{{end}} {{end}}{{if .VisibleFlags}}{{end}} ## OPTIONS {{range $index, $option := .VisibleFlags}}{{if $index}} {{end}}{{$option}} {{end}}{{end}}{{if .Copyright}}{{if len .Authors}} ## AUTHOR{{with $length := len .Authors}}{{if ne 1 $length}}S{{end}}{{end}}: {{range $index, $author := .Authors}}{{if $index}} {{end}}{{$author}}{{end}}{{end}}{{if .Version}}{{if not .HideVersion}} ## ONLINE This documentation is available online at https://smallstep.com/docs/certificates ## VERSION {{.Version}}{{end}}{{end}} ## COPYRIGHT {{.Copyright}} ## FEEDBACK ` + html.UnescapeString("&#"+strconv.Itoa(128525)+";") + " " + html.UnescapeString("&#"+strconv.Itoa(127867)+";") + ` The **step-ca** utility is not instrumented for usage statistics. It does not phone home. But your feedback is extremely valuable. Any information you can provide regarding how you’re using **step-ca** helps. Please send us a sentence or two, good or bad: **feedback@smallstep.com** or join https://gitter.im/smallstep/community. {{end}} ` func main() { // Override global framework components cli.VersionPrinter = func(c *cli.Context) { version.Command(c) } cli.AppHelpTemplate = appHelpTemplate cli.SubcommandHelpTemplate = usage.SubcommandHelpTemplate cli.CommandHelpTemplate = usage.CommandHelpTemplate cli.HelpPrinter = usage.HelpPrinter cli.FlagNamePrefixer = usage.FlagNamePrefixer cli.FlagStringer = stringifyFlag // Configure cli app app := cli.NewApp() app.Name = "step-ca" app.HelpName = "step-ca" app.Version = config.Version() app.Usage = "an online certificate authority for secure automated certificate management" app.UsageText = `**step-ca** [**--password-file**=] [**--resolver**=] [**--help**] [**--version**]` app.Description = `**step-ca** runs the Step Online Certificate Authority (Step CA) using the given configuration. See the README.md for more detailed configuration documentation. ## POSITIONAL ARGUMENTS : File that configures the operation of the Step CA; this file is generated when you initialize the Step CA using 'step ca init' ## EXIT CODES This command will run indefinitely on success and return \>0 if any error occurs. ## EXAMPLES These examples assume that you have already initialized your PKI by running 'step ca init'. If you have not completed this step please see the 'Getting Started' section of the README. Run the Step CA and prompt for password: ''' $ step-ca $STEPPATH/config/ca.json ''' Run the Step CA and read the password from a file - this is useful for automating deployment: ''' $ step-ca $STEPPATH/config/ca.json --password-file ./password.txt '''` app.Flags = append(app.Flags, commands.AppCommand.Flags...) app.Flags = append(app.Flags, cli.HelpFlag) app.Copyright = "(c) 2018-2020 Smallstep Labs, Inc." // All non-successful output should be written to stderr app.Writer = os.Stdout app.ErrWriter = os.Stderr app.Commands = command.Retrieve() // Start the golang debug logger if environment variable is set. // See https://golang.org/pkg/net/http/pprof/ debugProfAddr := os.Getenv("STEP_PROF_ADDR") if debugProfAddr != "" { go func() { log.Println(http.ListenAndServe(debugProfAddr, nil)) }() } app.Action = func(_ *cli.Context) error { // Hack to be able to run a the top action as a subcommand set := flag.NewFlagSet(app.Name, flag.ContinueOnError) set.Parse(os.Args) ctx := cli.NewContext(app, set, nil) return commands.AppCommand.Run(ctx) } if err := app.Run(os.Args); err != nil { if os.Getenv("STEPDEBUG") == "1" { fmt.Fprintf(os.Stderr, "%+v\n", err) } else { fmt.Fprintln(os.Stderr, err) } os.Exit(1) } } func flagValue(f cli.Flag) reflect.Value { fv := reflect.ValueOf(f) for fv.Kind() == reflect.Ptr { fv = reflect.Indirect(fv) } return fv } var placeholderString = regexp.MustCompile(`<.*?>`) func stringifyFlag(f cli.Flag) string { fv := flagValue(f) usage := fv.FieldByName("Usage").String() placeholder := placeholderString.FindString(usage) if placeholder == "" { switch f.(type) { case cli.BoolFlag, cli.BoolTFlag: default: placeholder = "" } } return cli.FlagNamePrefixer(fv.FieldByName("Name").String(), placeholder) + "\t" + usage }