//simple CLI interface. Sample usage:
//goner -min=8 -max=10 -digits=3 -punctuation=3 -uppercase=4
//Flags:
// -l: minimum length
// -L: maximum length
// -d: digits
// -p: punctuation
// -u: uppercase
func main() {
min := flag.Int("min", 12, "minimum password length")
max := flag.Int("max", 0, "maximum password length")
digits := flag.Int("digits", 3, "number of digits")
punctuation := flag.Int("punctuation", 1, "number of punctuation symbols")
uppercase := flag.Int("uppercase", 1, "number of uppercase characters")
flag.Parse()
reqs := garbler.PasswordStrengthRequirements{
MinimumTotalLength: *min,
MaximumTotalLength: *max,
Uppercase: *uppercase,
Digits: *digits,
Punctuation: *punctuation,
}
pass, err := garbler.NewPassword(&reqs)
if err != nil {
fmt.Println(err)
return
}
fmt.Println(pass)
}
func (_ Test) Garbler() {
g := &garbler.PasswordStrengthRequirements{MinimumTotalLength: 6, MaximumTotalLength: 9,
Uppercase: 0, Digits: 4, Punctuation: 0}
s, _ := garbler.NewPassword(g)
e.InfoLog.Println(s)
}
func main() {
var (
location = flag.String("l", os.Getenv("CLC_LOCATION"), "Data centre alias (needed to resolve IDs)")
intvl = flag.Duration("i", 1*time.Second, "Poll interval for status updates (use 0 to disable)")
handlingServer bool // what to act on
action, where string // what to do and where
reqID string // request ID of the action
)
/*
* Argument Validation
*/
flag.Usage = usage
flag.Parse()
if flag.NArg() >= 1 {
action = flag.Arg(0)
if flag.NArg() > 1 {
where = flag.Arg(1)
}
} else {
usage()
}
switch action {
case "help":
usage()
case "networks", "templates", "show":
// Omit location warning here, will be displayed after client is initialized.
case "credentials":
handlingServer = true
case "memory":
handlingServer = true
if flag.NArg() != 3 {
exit.Errorf("usage: password <serverName> <memoryGB>")
}
case "password":
handlingServer = true
if flag.NArg() < 2 {
exit.Errorf("usage: password <serverName> [<new-password>]")
}
case "description":
handlingServer = true
if flag.NArg() < 2 {
exit.Errorf("usage: description <serverName> <descriptive-text")
}
case "rawdisk":
handlingServer = true
if flag.NArg() != 3 {
exit.Errorf("usage: rawdisk <serverName> <diskGB>")
}
case "mv":
if flag.NArg() != 3 {
exit.Errorf("usage: mv <server|group> <new-Group>")
}
case "mkdir":
if flag.NArg() != 3 {
exit.Errorf("usage: mkdir <parentGroup> <newGroupName>")
}
case "rename":
if flag.NArg() != 3 {
exit.Errorf("usage: rename <oldGroupName> <newGroupName>")
}
case "ip", "on", "start", "off", "shutdown", "stop", "pause", "reset", "reboot", "snapshot",
"delsnapshot", "revert", "archive", "delete", "remove", "wait":
/* FIXME: use map for usage, and use keys here, i.e. _, ok := map[action] */
if where == "" {
exit.Errorf("Action %q requires an argument (try -h).", action)
}
default:
exit.Errorf("Unsupported action %q", action)
}
client, err := clcv2.NewCLIClient()
if err != nil {
exit.Fatal(err.Error())
}
if *location == "" {
if action == "networks" || action == "show" || action == "templates" {
fmt.Fprintf(os.Stderr, "Note: no location argument (-l) given, defaulting to %s.\n", client.LocationAlias)
}
*location = client.LocationAlias
}
if !handlingServer && action != "wait" {
/*
* Decide if arguments refer to a server or a hardware group.
*/
if _, err := hex.DecodeString(where); err == nil {
/* If the first argument decodes as a hex value, assume it is a Hardware Group UUID */
} else if utils.LooksLikeServerName(where) { /* Starts with a location identifier and is not hex ... */
where = strings.ToUpper(where)
handlingServer = true
} else if *location != "" && where != "" {
if group, err := client.GetGroupByName(where, *location); err != nil {
exit.Errorf("failed to resolve group name %q: %s", where, err)
} else if group == nil {
exit.Errorf("No group named %q was found in %s", where, *location)
} else {
where = group.Id
}
} else if *location == "" {
exit.Errorf("%q looks like a group name - need a location (-l argument) to resolve it.", where)
} else {
exit.Errorf("Unable to determine whether %q is a server or a group", where)
}
}
if action == "templates" { /* where="" - neither server nor group action; print regional templates */
showTemplates(client, *location)
os.Exit(0)
} else if action == "networks" { /* similar, neither server nor group action; print regional networks */
showNetworks(client, *location)
os.Exit(0)
} else if action == "wait" {
reqID = flag.Arg(1)
} else if handlingServer { /* Server Action */
switch action {
case "ip":
printServerIP(client, where)
os.Exit(0)
case "show":
// FIXME: deal with multiple servers
if flag.NArg() == 2 {
showServer(client, where)
} else {
showServers(client, flag.Args()[1:]...)
}
os.Exit(0)
case "mv":
var newParent = flag.Arg(2)
if _, err := hex.DecodeString(newParent); err == nil {
/* Looks like a Group UUID */
} else if *location == "" {
exit.Errorf("Need a location argument (-l) if destination group (%s) is not a UUID", newParent)
} else {
if grp, err := client.GetGroupByName(newParent, *location); err != nil {
exit.Errorf("failed to resolve group name %q: %s", newParent, err)
} else if grp == nil {
exit.Errorf("No group named %q was found in %s", newParent, *location)
} else {
newParent = grp.Id
}
}
if err = client.ServerSetGroup(where, newParent); err != nil {
exit.Fatalf("failed to change the parent group on %q: %s", where, err)
}
fmt.Printf("Successfully changed the parent group of %s to %s.\n", where, flag.Arg(2))
os.Exit(0)
case "memory":
fmt.Printf("Setting %s memory to %s GB ...\n", where, flag.Arg(2))
reqID, err = client.ServerSetMemory(where, flag.Arg(2))
if err != nil {
exit.Fatalf("failed to change the amount of Memory on %q: %s", where, err)
}
case "description":
fmt.Printf("Setting %s description to to %q.\n", where, flag.Arg(2))
if err = client.ServerSetDescription(where, flag.Arg(2)); err != nil {
exit.Fatalf("failed to change the description of %q: %s", where, err)
}
case "password":
var newPassword string
log.Printf("Looking up existing password of %s", where)
credentials, err := client.GetServerCredentials(where)
if err != nil {
exit.Fatalf("failed to obtain the credentials of %q: %s", where, err)
}
log.Printf("Existing %s password: %q", where, credentials.Password)
if flag.NArg() == 3 {
newPassword = flag.Arg(2)
} else if newPassword, err = garbler.NewPassword(&garbler.Paranoid); err != nil {
exit.Fatalf("failed to generate new 'garbler' password: %s", err)
} else {
// The 'Paranoid' mode in garbler more than satisfies CLC requirements.
// However, the symbols may contain unsupported characters.
newPassword = strings.Map(func(r rune) rune {
if strings.Index(clcv2.InvalidPasswordCharacters, string(r)) > -1 {
return '@'
}
return r
}, newPassword)
log.Printf("New paranoid 'garbler' password: %q", newPassword)
}
if newPassword == credentials.Password {
log.Printf("%s password is already set to %q", where, newPassword)
os.Exit(0)
}
reqID, err = client.ServerChangePassword(where, credentials.Password, newPassword)
if err != nil {
exit.Fatalf("failed to change the password on %q: %s", where, err)
}
case "credentials":
credentials, err := client.GetServerCredentials(where)
if err != nil {
exit.Fatalf("failed to obtain the credentials of server %q: %s", where, err)
}
fmt.Printf("Credentials for %s:\n", where)
fmt.Printf("User: %s\n", credentials.Username)
fmt.Printf("Password: \"%s\"\n", credentials.Password)
os.Exit(0)
case "rawdisk":
diskGB, err := strconv.ParseUint(flag.Arg(2), 10, 32)
if err != nil {
exit.Errorf("rawdisk: invalid disk size in GB %q for %s", flag.Arg(2), where)
}
reqID = addRawDisk(client, where, uint32(diskGB))
default:
var serverAction = map[string]func(string) (string, error){
"on": client.PowerOnServer,
"start": client.PowerOnServer, // Alias
"off": client.PowerOffServer,
"pause": client.PauseServer,
"reset": client.ResetServer,
"reboot": client.RebootServer,
"shutdown": client.ShutdownServer,
"stop": client.ShutdownServer, // Alias
"archive": client.ArchiveServer,
"delete": client.DeleteServer,
"remove": client.DeleteServer, // Alias
"snapshot": client.SnapshotServer,
"delsnapshot": client.DeleteSnapshot,
"revert": client.RevertToSnapshot,
}
/* Long-running commands that return a RequestID */
handler, ok := serverAction[action]
if !ok {
exit.Fatalf("Unsupported server action %s", action)
}
reqID, err = handler(where)
if err != nil {
exit.Fatalf("Server command %q failed: %s", action, err)
}
}
} else if action == "show" || action == "ip" {
/* Printing group trees: requires to resolve the root first. */
var start *clcv2.Group
if *location == "" {
exit.Errorf("Location argument (-l) is required in order to traverse nested groups.")
}
root, err := client.GetGroups(*location)
if err != nil {
exit.Fatalf("failed to look up groups at %s: %s", *location, err)
}
start = &root
if where != "" {
start = clcv2.FindGroupNode(start, func(g *clcv2.Group) bool {
return g.Id == where
})
if start == nil {
exit.Fatalf("failed to look up UUID %s in %s - is this the correct value?", where, *location)
}
}
switch action {
case "show":
showGroup(client, start)
case "ip":
printGroupIPs(client, start)
}
os.Exit(0)
} else {
/* Other Group Action */
switch action {
case "archive":
reqID, err = client.ArchiveGroup(where)
case "mkdir":
g, err := client.CreateGroup(flag.Arg(2), where, flag.Arg(2), nil)
if err == nil {
fmt.Printf("New subfolder of %s: %q (UUID: %s)\n", flag.Arg(1), g.Name, g.Id)
}
case "delete", "remove":
reqID, err = client.DeleteGroup(where)
case "mv":
var newParent = flag.Arg(2)
if _, err := hex.DecodeString(newParent); err == nil {
/* Looks like a Group UUID */
} else if *location == "" {
exit.Errorf("Need a location argument (-l) if destination group (%s) is not a UUID", newParent)
} else {
if grp, err := client.GetGroupByName(newParent, *location); err != nil {
exit.Errorf("failed to resolve group name %q: %s", newParent, err)
} else if grp == nil {
exit.Errorf("No group named %q was found in %s", newParent, *location)
} else {
newParent = grp.Id
}
}
if err = client.GroupSetParent(where, newParent); err != nil {
exit.Fatalf("failed to change the parent group on %q: %s", where, err)
}
fmt.Printf("Successfully changed the parent group of %s to %s.\n", where, flag.Arg(2))
os.Exit(0)
case "rename":
if err = client.GroupSetName(where, flag.Arg(2)); err == nil {
fmt.Println("OK")
}
default:
exit.Errorf("Unsupported group action %q", action)
}
if err != nil {
exit.Fatalf("Group command %q failed: %s", action, err)
}
}
if reqID != "" {
client.PollStatus(reqID, *intvl)
}
}