// promptForForm runs an XEP-0004 form and collects responses from the user.
func promptForForm(term *terminal.Terminal, user, password, title, instructions string, fields []interface{}) error {
info(term, "The server has requested the following information. Text that has come from the server will be shown in red.")
// formStringForPrinting takes a string form the form and returns an
// escaped version with codes to make it show as red.
formStringForPrinting := func(s string) string {
var line []byte
line = append(line, term.Escape.Red...)
line = appendTerminalEscaped(line, []byte(s))
line = append(line, term.Escape.Reset...)
return string(line)
}
write := func(s string) {
term.Write([]byte(s))
}
var tmpDir string
showMediaEntries := func(questionNumber int, medias [][]xmpp.Media) {
if len(medias) == 0 {
return
}
write("The following media blobs have been provided by the server with this question:\n")
for i, media := range medias {
for j, rep := range media {
if j == 0 {
write(fmt.Sprintf(" %d. ", i+1))
} else {
write(" ")
}
write(fmt.Sprintf("Data of type %s", formStringForPrinting(rep.MIMEType)))
if len(rep.URI) > 0 {
write(fmt.Sprintf(" at %s\n", formStringForPrinting(rep.URI)))
continue
}
var fileExt string
switch rep.MIMEType {
case "image/png":
fileExt = "png"
case "image/jpeg":
fileExt = "jpeg"
}
if len(tmpDir) == 0 {
var err error
if tmpDir, err = ioutil.TempDir("", "xmppclient"); err != nil {
write(", but failed to create temporary directory in which to save it: " + err.Error() + "\n")
continue
}
}
filename := filepath.Join(tmpDir, fmt.Sprintf("%d-%d-%d", questionNumber, i, j))
if len(fileExt) > 0 {
filename = filename + "." + fileExt
}
out, err := os.OpenFile(filename, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0600)
if err != nil {
write(", but failed to create file in which to save it: " + err.Error() + "\n")
continue
}
out.Write(rep.Data)
out.Close()
write(", saved in " + filename + "\n")
}
}
write("\n")
}
var err error
if len(title) > 0 {
write(fmt.Sprintf("Title: %s\n", formStringForPrinting(title)))
}
if len(instructions) > 0 {
write(fmt.Sprintf("Instructions: %s\n", formStringForPrinting(instructions)))
}
questionNumber := 0
for _, field := range fields {
questionNumber++
write("\n")
switch field := field.(type) {
case *xmpp.FixedFormField:
write(formStringForPrinting(field.Text))
write("\n")
questionNumber--
case *xmpp.BooleanFormField:
write(fmt.Sprintf("%d. %s\n\n", questionNumber, formStringForPrinting(field.Label)))
showMediaEntries(questionNumber, field.Media)
term.SetPrompt("Please enter yes, y, no or n: ")
TryAgain:
for {
answer, err := term.ReadLine()
if err != nil {
return err
}
switch answer {
case "yes", "y":
field.Result = true
case "no", "n":
field.Result = false
default:
continue TryAgain
}
break
}
case *xmpp.TextFormField:
switch field.Label {
case "CAPTCHA web page":
if strings.HasPrefix(field.Default, "http") {
// This is a oddity of jabber.ccc.de and maybe
// others. The URL for the capture is provided
// as the default answer to a question. Perhaps
// that was needed with some clients. However,
// we support embedded media and it's confusing
// to ask the question, so we just print the
// URL.
write(fmt.Sprintf("CAPTCHA web page (only if not provided below): %s\n", formStringForPrinting(field.Default)))
questionNumber--
continue
}
case "User":
field.Result = user
questionNumber--
continue
case "Password":
field.Result = password
questionNumber--
continue
}
write(fmt.Sprintf("%d. %s\n\n", questionNumber, formStringForPrinting(field.Label)))
showMediaEntries(questionNumber, field.Media)
if len(field.Default) > 0 {
write(fmt.Sprintf("Please enter response or leave blank for the default, which is '%s'\n", formStringForPrinting(field.Default)))
} else {
write("Please enter response")
}
term.SetPrompt("> ")
if field.Private {
field.Result, err = term.ReadPassword("> ")
} else {
field.Result, err = term.ReadLine()
}
if err != nil {
return err
}
if len(field.Result) == 0 {
field.Result = field.Default
}
case *xmpp.MultiTextFormField:
write(fmt.Sprintf("%d. %s\n\n", questionNumber, formStringForPrinting(field.Label)))
showMediaEntries(questionNumber, field.Media)
write("Please enter one or more responses, terminated by an empty line\n")
term.SetPrompt("> ")
for {
line, err := term.ReadLine()
if err != nil {
return err
}
if len(line) == 0 {
break
}
field.Results = append(field.Results, line)
}
case *xmpp.SelectionFormField:
write(fmt.Sprintf("%d. %s\n\n", questionNumber, formStringForPrinting(field.Label)))
showMediaEntries(questionNumber, field.Media)
for i, opt := range field.Values {
write(fmt.Sprintf(" %d. %s\n\n", i+1, formStringForPrinting(opt)))
}
term.SetPrompt("Please enter the number of your selection: ")
TryAgain2:
for {
answer, err := term.ReadLine()
if err != nil {
return err
}
answerNum, err := strconv.Atoi(answer)
answerNum--
if err != nil || answerNum < 0 || answerNum >= len(field.Values) {
write("Cannot parse that reply. Try again.")
continue TryAgain2
}
field.Result = answerNum
break
}
case *xmpp.MultiSelectionFormField:
write(fmt.Sprintf("%d. %s\n\n", questionNumber, formStringForPrinting(field.Label)))
showMediaEntries(questionNumber, field.Media)
for i, opt := range field.Values {
write(fmt.Sprintf(" %d. %s\n\n", i+1, formStringForPrinting(opt)))
}
term.SetPrompt("Please enter the numbers of zero or more of the above, separated by spaces: ")
TryAgain3:
for {
answer, err := term.ReadLine()
if err != nil {
return err
}
var candidateResults []int
answers := strings.Fields(answer)
for _, answerStr := range answers {
answerNum, err := strconv.Atoi(answerStr)
answerNum--
if err != nil || answerNum < 0 || answerNum >= len(field.Values) {
write("Cannot parse that reply. Please try again.")
continue TryAgain3
}
for _, other := range candidateResults {
if answerNum == other {
write("Cannot have duplicates. Please try again.")
continue TryAgain3
}
}
candidateResults = append(candidateResults, answerNum)
}
field.Results = candidateResults
break
}
}
}
if len(tmpDir) > 0 {
os.RemoveAll(tmpDir)
}
return nil
}
func main() {
var (
filename string
site string
username string
password string
line string
buf []byte
db *keyrack.Database
oldState *terminal.State
term *terminal.Terminal
termio TermIO
group *keyrack.Group
//trail []*keyrack.Group
groupView GroupView
matched bool
quit bool
err error
)
if len(os.Args) != 2 {
fmt.Printf("Syntax: %s <filename>\n", os.Args[0])
os.Exit(1)
}
filename = os.Args[1]
// setup terminal
oldState, err = terminal.MakeRaw(0)
if err != nil {
panic(err)
}
defer terminal.Restore(0, oldState)
termio.Input = os.Stdin
termio.Output = os.Stdout
term = terminal.NewTerminal(termio, "> ")
if _, err = os.Stat(filename); os.IsNotExist(err) {
db, err = keyrack.NewDatabase()
} else {
password, err = term.ReadPassword("Password: "******""
}
group = db.Top()
for err == nil && !quit {
groupView.Group = group
buf, err = groupView.Render()
if err != nil {
break
}
_, err = term.Write(buf)
if err != nil {
break
}
line, err = term.ReadLine()
if err != nil {
break
}
switch line {
case "q":
password, err = term.ReadPassword("Password: "******""
quit = true
case "ng", "new group":
term.SetPrompt("Group name: ")
line, err = term.ReadLine()
if err != nil {
break
}
if line == "" {
term.Write([]byte("Group creation cancelled.\n"))
} else {
err = group.AddGroup(line)
if err != nil {
if err == keyrack.ErrGroupExists {
term.Write([]byte("Group already exists.\n"))
} else {
break
}
}
}
term.SetPrompt("> ")
case "nl", "new login":
term.SetPrompt("Site name: ")
site, err = term.ReadLine()
if err != nil {
break
}
if site == "" {
term.Write([]byte("Login creation cancelled.\n"))
} else {
term.SetPrompt("Username: "******"" {
term.Write([]byte("Login creation cancelled.\n"))
} else {
password, err = term.ReadPassword("Password: "******"" {
term.Write([]byte("Login creation cancelled.\n"))
} else {
err = group.AddLogin(site, username, password)
password = ""
if err != nil {
if err == keyrack.ErrLoginExists {
term.Write([]byte("Login already exists.\n"))
} else {
break
}
}
}
}
}
term.SetPrompt("> ")
default:
matched, err = regexp.MatchString("^G(\\d+)$", line)
if err != nil {
break
}
if matched {
term.Write([]byte("Group!\n"))
continue
}
matched, err = regexp.MatchString("^L(\\d+)$", line)
if err != nil {
break
}
if matched {
term.Write([]byte("Group!\n"))
}
}
}
if err != nil {
fmt.Println(err)
}
if quit {
fmt.Println("Quitting...")
}
}