login form ok
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e927de80d0
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2058e3c8e2
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login
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package main
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import (
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"bytes"
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"encoding/json"
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"errors"
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"io/ioutil"
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"net/http"
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)
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func checkLogin(username, password string) (bool, error) {
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j, err := json.Marshal(map[string]string{
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"username": username,
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"password": password,
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})
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if err != nil {
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return false, err
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}
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resp, err := http.Post(URLLogin, "application/json", bytes.NewReader(j))
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if err != nil {
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return false, err
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}
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if resp.StatusCode != http.StatusOK {
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cnt, _ := ioutil.ReadAll(resp.Body)
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return false, errors.New(string(cnt))
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}
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return true, nil
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}
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package main
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import (
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gc "github.com/rthornton128/goncurses"
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)
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const URLLogin = "http://127.0.0.1:8081/login"
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func goLogin(stdscr *gc.Window, in chan gc.Key) (string, bool) {
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username, password := login(stdscr, in)
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validator := make(chan error)
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go func(username, password string, progress chan error) {
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_, err := checkLogin(username, password)
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progress <- err
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}(username, password, validator)
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if connection(stdscr, in, validator) {
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return username, true
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} else {
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return goLogin(stdscr, in)
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}
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}
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func main() {
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stdscr, _ := gc.Init()
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defer gc.End()
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// Set main properties
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gc.Cursor(0)
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gc.StartColor()
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gc.Raw(true)
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gc.Echo(false)
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stdscr.Keypad(true)
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// Define colors
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gc.InitPair(1, gc.C_WHITE, gc.C_BLUE)
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gc.InitPair(2, gc.C_GREEN, gc.C_BLACK)
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gc.InitPair(3, gc.C_CYAN, gc.C_BLACK)
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gc.InitPair(4, gc.C_RED, gc.C_BLACK)
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// Register pressed key through channel
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in := make(chan gc.Key)
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go func(w *gc.Window, ch chan<- gc.Key) {
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for {
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ch <- w.GetChar()
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}
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}(stdscr, in)
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// Run!
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if username, ok := goLogin(stdscr, in); ok {
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okreboot(stdscr, username)
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}
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}
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package main
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import (
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"strings"
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"time"
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gc "github.com/rthornton128/goncurses"
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)
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func login(stdscr *gc.Window, in chan gc.Key) (username , password string) {
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gc.Cursor(1)
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stdscr.Clear()
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// Initialize the fields and Set field options
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fields := make([]*gc.Field, 3)
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fields[0], _ = gc.NewField(1, 15, 2, 18, 0, 0)
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defer fields[0].Free()
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fields[0].SetBackground(gc.A_UNDERLINE)
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fields[0].SetOptionsOff(gc.FO_AUTOSKIP)
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fields[1], _ = gc.NewField(1, 15, 4, 18, 0, 0)
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defer fields[1].Free()
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fields[1].SetBackground(gc.A_UNDERLINE)
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fields[1].SetOptionsOff(gc.FO_PUBLIC)
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fields[1].SetOptionsOff(gc.FO_AUTOSKIP)
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fields[2], _ = gc.NewField(1, 11, 7, 14, 0, 0)
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defer fields[2].Free()
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fields[2].SetBuffer("< Connect >")
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fields[2].SetBackground(gc.ColorPair(1))
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fields[2].SetOptionsOff(gc.FO_EDIT)
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fields[2].SetOptionsOff(gc.FO_AUTOSKIP)
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// Create the form and post it
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form, _ := gc.NewForm(fields)
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defer form.Free()
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// Create the window to be associated with the form
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rows, cols := stdscr.MaxYX()
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height, width := 14, 40
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y, x := (rows-height)/2, (cols-width)/2
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mainwin, _ := gc.NewWindow(height, width, y, x)
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defer mainwin.Delete()
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defer mainwin.Erase()
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mainwin.Keypad(true)
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// Set main window and sub window
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form.SetWindow(mainwin)
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form.SetSub(mainwin.Derived(8, 38, 3, 1))
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// Print a border around the main window and print a title
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mainwin.Box(0, 0)
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y, x = mainwin.MaxYX()
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title := "SRS ADLIN - Login"
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mainwin.ColorOn(2)
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mainwin.MovePrint(1, (x/2)-(len(title)/2), title)
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mainwin.ColorOff(1)
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mainwin.MoveAddChar(2, 0, gc.ACS_LTEE)
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mainwin.HLine(2, 1, gc.ACS_HLINE, x-2)
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mainwin.MoveAddChar(2, x-1, gc.ACS_RTEE)
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stdscr.Refresh()
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form.Post()
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defer form.UnPost()
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mainwin.MovePrint(5, 6, "Login:")
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mainwin.MovePrint(7, 6, "Password:")
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form.Driver(gc.REQ_FIRST_FIELD)
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stdscr.Refresh()
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mainwin.Refresh()
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login:
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for {
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select {
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case ch := <- in:
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switch ch {
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case gc.KEY_DOWN, gc.KEY_TAB:
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form.Driver(gc.REQ_NEXT_FIELD)
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form.Driver(gc.REQ_END_LINE)
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case gc.KEY_UP:
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form.Driver(gc.REQ_PREV_FIELD)
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form.Driver(gc.REQ_END_LINE)
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case gc.KEY_BACKSPACE:
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form.Driver(gc.REQ_CLR_FIELD)
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case gc.KEY_RETURN:
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form.Driver(gc.REQ_NEXT_FIELD)
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form.Driver(gc.REQ_END_LINE)
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if len(strings.TrimSpace(fields[0].Buffer())) > 0 && len(strings.TrimSpace(fields[1].Buffer())) > 0 {
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break login
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}
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default:
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form.Driver(ch)
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}
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}
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mainwin.Refresh()
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}
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username = strings.TrimSpace(fields[0].Buffer())
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password = strings.TrimSpace(fields[1].Buffer())
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return
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}
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func connection(stdscr *gc.Window, in chan gc.Key, validator chan error) (canContinue bool) {
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gc.Cursor(0)
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stdscr.Clear()
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// Create the window to be associated with the form
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rows, cols := stdscr.MaxYX()
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height, width := 10, 60
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y, x := (rows-height)/2, (cols-width)/2
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mainwin, _ := gc.NewWindow(height, width, y, x)
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defer mainwin.Delete()
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mainwin.Keypad(true)
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// Print a border around the main window and print a title
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mainwin.Box(0, 0)
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y, x = mainwin.MaxYX()
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title := "SRS ADLIN - Login"
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mainwin.ColorOn(2)
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mainwin.MovePrint(1, (x/2)-(len(title)/2), title)
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mainwin.ColorOff(2)
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mainwin.MoveAddChar(2, 0, gc.ACS_LTEE)
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mainwin.HLine(2, 1, gc.ACS_HLINE, x-2)
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mainwin.MoveAddChar(2, x-1, gc.ACS_RTEE)
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stdscr.Refresh()
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mainwin.MovePrint(4, 4, " Please wait...")
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mainwin.ColorOn(3)
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mainwin.MovePrint(6, 2, "Connecting to login server...")
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mainwin.ColorOff(3)
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stdscr.Refresh()
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mainwin.Refresh()
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ticker := time.NewTicker(time.Millisecond * 150)
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rotPos := 0
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loginloop:
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for {
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select {
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case ch := <- in:
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if gc.Char(ch) == gc.Char('r') {
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break loginloop
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}
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case e := <- validator:
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if e == nil {
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canContinue = true
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break loginloop
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} else {
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mainwin.ColorOn(4)
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mainwin.MovePrint(4, 2, e.Error())
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mainwin.ColorOff(4)
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ticker.Stop()
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mainwin.MovePrint(6, 2, " Press any key to retry ")
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mainwin.Refresh()
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<- in
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break loginloop
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}
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case <- ticker.C:
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switch rotPos += 1; rotPos {
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case 0,4:
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mainwin.MovePrint(4, 4, "|")
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case 1,5:
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mainwin.MovePrint(4, 4, "/")
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case 2,6:
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mainwin.MovePrint(4, 4, "-")
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case 3,7:
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mainwin.MovePrint(4, 4, "\\")
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default:
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mainwin.MovePrint(4, 4, "|")
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rotPos = 0
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}
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}
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mainwin.Refresh()
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}
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ticker.Stop()
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return
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}
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func okreboot(stdscr *gc.Window, login string) {
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gc.Cursor(0)
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stdscr.Clear()
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// Create the window to be associated with the form
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rows, cols := stdscr.MaxYX()
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height, width := 14, 42
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y, x := (rows-height)/2, (cols-width)/2
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mainwin, _ := gc.NewWindow(height, width, y, x)
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defer mainwin.Delete()
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mainwin.Keypad(true)
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// Print a border around the main window and print a title
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mainwin.Box(0, 0)
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y, x = mainwin.MaxYX()
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title := "SRS ADLIN"
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mainwin.ColorOn(2)
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mainwin.MovePrint(1, (x/2)-(len(title)/2), title)
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mainwin.ColorOff(2)
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mainwin.MoveAddChar(2, 0, gc.ACS_LTEE)
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mainwin.HLine(2, 1, gc.ACS_HLINE, x-2)
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mainwin.MoveAddChar(2, x-1, gc.ACS_RTEE)
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stdscr.Refresh()
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mainwin.ColorOn(2)
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mainwin.MovePrint(4, 2, "You are now successfully logged in as: ")
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mainwin.ColorOff(2)
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mainwin.ColorOn(3)
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mainwin.MovePrint(5, (x/2)-(len(login)/2), login)
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mainwin.ColorOff(3)
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mainwin.MovePrint(8, 2, "Your computer will automatically")
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mainwin.MovePrint(9, 2, "reboot in a few seconds...")
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mainwin.MovePrint(11, 2, "|------------------------------------|")
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stdscr.Refresh()
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mainwin.Refresh()
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ticker := time.NewTicker(time.Millisecond * 98)
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pos := 0
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rebootloop:
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for {
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select {
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case <- ticker.C:
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mainwin.MovePrint(11, 3 + pos, "*")
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pos += 1
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if pos > 36 {
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break rebootloop
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}
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}
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mainwin.Refresh()
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}
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ticker.Stop()
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}
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