func main() {
var err error
defer func() {
if e := recover(); e != nil {
fmt.Printf("FATAL: %v\n", e)
}
}()
homedir := client.FindHomedir()
var Usage = func() {
fmt.Fprintf(os.Stderr,
"Mozilla InvestiGator Action Generator\n"+
"usage: %s -i <input file>\n\n"+
"Command line to generate and sign MIG Actions.\n"+
"Configuration is read from ~/.migrc by default.\n\n"+
"Options:\n",
os.Args[0])
flag.PrintDefaults()
}
// command line options
var config = flag.String("c", homedir+"/.migrc", "Load configuration from file")
var pretty = flag.Bool("p", false, "Print signed action in pretty JSON format")
var urlencode = flag.Bool("urlencode", false, "URL Encode marshalled JSON before printing it (implies '-p')")
var file = flag.String("i", "/path/to/file", "Load action from file")
var target = flag.String("t", "some.target.example.net", "Set the target of the action")
var validfrom = flag.String("validfrom", "now", "(optional) set an ISO8601 date the action will be valid from. If unset, use 'now'.")
var expireafter = flag.String("expireafter", "30m", "(optional) set a validity duration for the action. If unset, use '30m'.")
var nolaunch = flag.Bool("nolaunch", false, "Don't launch the action. Print it and exit. (implies '-p')")
var showversion = flag.Bool("V", false, "Show build version and exit")
flag.Parse()
if *showversion {
fmt.Println(version)
os.Exit(0)
}
if *nolaunch {
*pretty = true
}
// instanciate an API client
conf, err := client.ReadConfiguration(*config)
if err != nil {
panic(err)
}
cli, err := client.NewClient(conf, "generator-"+version)
if err != nil {
panic(err)
}
// We need a file to load the action from
if *file == "/path/to/file" {
fmt.Println("ERROR: Missing action file")
Usage()
os.Exit(1)
}
a, err := mig.ActionFromFile(*file)
if err != nil {
panic(err)
}
// set the dates
if *validfrom == "now" {
// for immediate execution, set validity one minute in the past
a.ValidFrom = time.Now().Add(-60 * time.Second).UTC()
} else {
a.ValidFrom, err = time.Parse(time.RFC3339, *validfrom)
if err != nil {
panic(err)
}
}
period, err := time.ParseDuration(*expireafter)
if err != nil {
log.Fatal(err)
}
a.ExpireAfter = a.ValidFrom.Add(period)
if *target != "some.target.example.net" {
a.Target = *target
}
asig, err := cli.SignAction(a)
if err != nil {
panic(err)
}
a = asig
// if asked, pretty print the action
var jsonAction []byte
if *pretty {
jsonAction, err = json.MarshalIndent(a, "", "\t")
fmt.Printf("%s\n", jsonAction)
} 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 *pretty {
fmt.Println(actionstr)
}
}
if !*nolaunch {
a2, err := cli.PostAction(a)
if err != nil {
panic(err)
}
fmt.Printf("Successfully launched action %.0f\n", a2.ID)
}
}
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)
}
}
func main() {
var (
conf client.Configuration
cli client.Client
err error
op mig.Operation
a mig.Action
migrc, show, render, target, expiration, afile string
modargs []string
modRunner interface{}
)
defer func() {
if e := recover(); e != nil {
fmt.Fprintf(os.Stderr, "%v\n", e)
}
}()
homedir := client.FindHomedir()
fs := flag.NewFlagSet("mig flag", flag.ContinueOnError)
fs.Usage = continueOnFlagError
fs.StringVar(&migrc, "c", homedir+"/.migrc", "alternative configuration file")
fs.StringVar(&show, "show", "found", "type of results to show")
fs.StringVar(&render, "render", "text", "results rendering mode")
fs.StringVar(&target, "t", fmt.Sprintf("status='%s' AND mode='daemon'", mig.AgtStatusOnline), "action target")
fs.StringVar(&expiration, "e", "300s", "expiration")
fs.StringVar(&afile, "i", "/path/to/file", "Load action from file")
// if first argument is missing, or is help, print help
// otherwise, pass the remainder of the arguments to the module for parsing
// this client is agnostic to module parameters
if len(os.Args) < 2 || os.Args[1] == "help" || os.Args[1] == "-h" || os.Args[1] == "--help" {
usage()
}
if len(os.Args) < 2 || os.Args[1] == "-V" {
fmt.Println(version)
os.Exit(0)
}
// when reading the action from a file, go directly to launch
if os.Args[1] == "-i" {
err = fs.Parse(os.Args[1:])
if err != nil {
panic(err)
}
if afile == "/path/to/file" {
panic("-i flag must take an action file path as argument")
}
a, err = mig.ActionFromFile(afile)
if err != nil {
panic(err)
}
fmt.Fprintf(os.Stderr, "[info] launching action from file, all flags are ignored\n")
goto readytolaunch
}
// arguments parsing works as follow:
// * os.Args[1] must contain the name of the module to launch. we first verify
// that a module exist for this name and then continue parsing
// * os.Args[2:] contains both global options and module parameters. We parse the
// whole []string to extract global options, and module parameters will be left
// unparsed in fs.Args()
// * fs.Args() with the module parameters is passed as a string to the module parser
// which will return a module operation to store in the action
op.Module = os.Args[1]
if _, ok := modules.Available[op.Module]; !ok {
panic("Unknown module " + op.Module)
}
// -- Ugly hack Warning --
// Parse() will fail on the first flag that is not defined, but in our case module flags
// are defined in the module packages and not in this program. Therefore, the flag parse error
// is expected. Unfortunately, Parse() writes directly to stderr and displays the error to
// the user, which confuses them. The right fix would be to prevent Parse() from writing to
// stderr, since that's really the job of the calling program, but in the meantime we work around
// it by redirecting stderr to null before calling Parse(), and put it back to normal afterward.
// for ref, issue is at https://github.com/golang/go/blob/master/src/flag/flag.go#L793
fs.SetOutput(os.NewFile(uintptr(87592), os.DevNull))
err = fs.Parse(os.Args[2:])
fs.SetOutput(nil)
if err != nil {
// ignore the flag not defined error, which is expected because
// module parameters are defined in modules and not in main
if len(err.Error()) > 30 && err.Error()[0:29] == "flag provided but not defined" {
// requeue the parameter that failed
modargs = append(modargs, err.Error()[31:])
} else {
// if it's another error, panic
panic(err)
}
}
for _, arg := range fs.Args() {
modargs = append(modargs, arg)
}
modRunner = modules.Available[op.Module].Runner()
if _, ok := modRunner.(modules.HasParamsParser); !ok {
fmt.Fprintf(os.Stderr, "[error] module '%s' does not support command line invocation\n", op.Module)
os.Exit(2)
}
op.Parameters, err = modRunner.(modules.HasParamsParser).ParamsParser(modargs)
if err != nil || op.Parameters == nil {
panic(err)
}
a.Operations = append(a.Operations, op)
for _, arg := range os.Args[1:] {
a.Name += arg + " "
}
a.Target = target
readytolaunch:
// instanciate an API client
conf, err = client.ReadConfiguration(migrc)
if err != nil {
panic(err)
}
cli, err = client.NewClient(conf, "cmd-"+version)
if err != nil {
panic(err)
}
// set the validity 60 second in the past to deal with clock skew
a.ValidFrom = time.Now().Add(-60 * time.Second).UTC()
period, err := time.ParseDuration(expiration)
if err != nil {
panic(err)
}
a.ExpireAfter = a.ValidFrom.Add(period)
// add extra 60 seconds taken for clock skew
a.ExpireAfter = a.ExpireAfter.Add(60 * time.Second).UTC()
asig, err := cli.SignAction(a)
if err != nil {
panic(err)
}
a = asig
// evaluate target before launch, give a change to cancel before going out to agents
agents, err := cli.EvaluateAgentTarget(a.Target)
if err != nil {
panic(err)
}
fmt.Fprintf(os.Stderr, "\x1b[33m%d agents will be targeted. ctrl+c to cancel. launching in \x1b[0m", len(agents))
for i := 5; i > 0; i-- {
time.Sleep(1 * time.Second)
fmt.Fprintf(os.Stderr, "\x1b[33m%d\x1b[0m ", i)
}
fmt.Fprintf(os.Stderr, "\x1b[33mGO\n\x1b[0m")
// launch and follow
a, err = cli.PostAction(a)
if err != nil {
panic(err)
}
c := make(chan os.Signal, 1)
done := make(chan bool, 1)
signal.Notify(c, os.Interrupt)
go func() {
err = cli.FollowAction(a)
if err != nil {
panic(err)
}
done <- true
}()
select {
case <-c:
fmt.Fprintf(os.Stderr, "stop following action. agents may still be running. printing available results:\n")
goto printresults
case <-done:
goto printresults
}
printresults:
err = cli.PrintActionResults(a, show, render)
if err != nil {
panic(err)
}
}