func replCLI(env *Env) {
defer fmt.Println("\nbye!")
counter := readline.HistorySize()
for {
buf := bytes.Buffer{}
prompt := fmt.Sprintf("[%d]-> ", counter)
for {
l, err := readline.String(prompt)
if err == io.EOF {
return
}
buf.WriteString(l)
if validSexp(buf.String()) {
break
}
buf.WriteString("\n")
prompt = ": "
}
result, err := repl(buf.String(), env)
if err != nil && err != ErrorEOF {
fmt.Println("Error:", err)
} else {
fmt.Println(result)
}
readline.AddHistory(buf.String())
counter++
}
}
func main() {
var err error
defer func() {
if e := recover(); e != nil {
fmt.Fprintf(os.Stderr, "FATAL: %v\n", e)
}
}()
homedir := client.FindHomedir()
// command line options
var config = flag.String("c", homedir+"/.migrc", "Load configuration from file")
var quiet = flag.Bool("q", false, "don't display banners and prompts")
var showversion = flag.Bool("V", false, "show build version and exit")
flag.Parse()
if *showversion {
fmt.Println(version)
os.Exit(0)
}
// silence extra output
out := os.Stdout
if *quiet {
out.Close()
out, err = os.Open(os.DevNull)
if err != nil {
panic(err)
}
}
defer out.Close()
fmt.Fprintf(out, "\x1b[32;1m"+banner+"\x1b[0m")
// append a space after completion
readline.CompletionAppendChar = 0x20
// load history
historyfile := homedir + "/.mig_history"
fi, err := os.Stat(historyfile)
if err == nil && fi.Size() > 0 {
err = readline.LoadHistory(historyfile)
if err != nil {
fmt.Fprintf(os.Stderr, "failed to load history from %s\n", historyfile)
}
}
// instanciate an API client
conf, err := client.ReadConfiguration(*config)
if err != nil {
panic(err)
}
cli, err := client.NewClient(conf, "console-"+version)
if err != nil {
panic(err)
}
// print platform status
err = printStatus(cli)
if err != nil {
log.Fatal(err)
}
fmt.Fprintf(out, "\nConnected to %s. Exit with \x1b[32;1mctrl+d\x1b[0m. Type \x1b[32;1mhelp\x1b[0m for help.\n", cli.Conf.API.URL)
for {
// completion
var symbols = []string{"action", "agent", "create", "command", "help", "history",
"exit", "showcfg", "status", "investigator", "search", "where", "and"}
readline.Completer = func(query, ctx string) []string {
var res []string
for _, sym := range symbols {
if strings.HasPrefix(sym, query) {
res = append(res, sym)
}
}
return res
}
input, err := readline.String("\x1b[32;1mmig>\x1b[0m ")
if err == io.EOF {
break
}
if err != nil {
fmt.Println("error: ", err)
break
}
orders := strings.Split(strings.TrimSpace(input), " ")
switch orders[0] {
case "action":
if len(orders) == 2 {
err = actionReader(input, cli)
if err != nil {
log.Println(err)
}
} else {
fmt.Println("error: missing action id in 'action <id>'")
}
case "agent":
err = agentReader(input, cli)
if err != nil {
log.Println(err)
}
case "create":
if len(orders) == 2 {
switch orders[1] {
case "action":
var a mig.Action
err = actionLauncher(a, cli)
case "investigator":
err = investigatorCreator(cli)
default:
fmt.Printf("unknown order 'create %s'\n", orders[1])
}
if err != nil {
log.Println(err)
}
} else {
fmt.Println("error: missing order, must be 'create <action|investigator>'")
}
case "command":
err = commandReader(input, cli)
if err != nil {
log.Println(err)
}
case "exit":
fmt.Printf("exit\n")
goto exit
case "help":
fmt.Printf(`The following orders are available:
action <id> enter interactive action reader mode for action <id>
agent <id> enter interactive agent reader mode for agent <id>
create action create a new action
create investigator create a new investigator, will prompt for name and public key
command <id> enter command reader mode for command <id>
exit leave
help show this help
history <count> print last <count> entries in history. count=10 by default.
investigator <id> enter interactive investigator management mode for investigator <id>
search perform a search. see "search help" for more information.
showcfg display running configuration
status display platform status: connected agents, latest actions, ...
`)
case "history":
var count int64 = 10
if len(orders) > 1 {
count, err = strconv.ParseInt(orders[1], 10, 64)
if err != nil {
log.Println(err)
break
}
}
for i := readline.HistorySize(); i > 0 && count > 0; i, count = i-1, count-1 {
fmt.Println(readline.GetHistory(i - 1))
}
case "investigator":
err = investigatorReader(input, cli)
if err != nil {
log.Println(err)
}
case "search":
err = search(input, cli)
if err != nil {
log.Println(err)
}
case "showcfg":
fmt.Printf("homedir = %s\n[api]\n url = %s\n[gpg]\n home = %s\n keyid = %s\n",
cli.Conf.API.URL, cli.Conf.Homedir, cli.Conf.GPG.Home, cli.Conf.GPG.KeyID)
case "status":
err = printStatus(cli)
if err != nil {
log.Println(err)
}
case "":
break
default:
fmt.Printf("Unknown order '%s'\n", orders[0])
}
readline.AddHistory(input)
}
exit:
fmt.Fprintf(out, footer)
err = readline.SaveHistory(historyfile)
if err != nil {
fmt.Fprintf(os.Stderr, "failed to save history to %s\n", historyfile)
}
}