package main

import (
	"crypto/aes"
	"crypto/cipher"
	"crypto/rand"
	"encoding/base32"
	"encoding/json"
	"fmt"
	"io"
	"os"
)
func encrypt(key, text []byte) string {
	block, err := aes.NewCipher(key)
	if err != nil {
		return ""
	}
	cipherText := make([]byte, aes.BlockSize+len(text))
	iv := cipherText[:aes.BlockSize]
	if _, err = io.ReadFull(rand.Reader, iv); err != nil {
		return ""
	}
	stream := cipher.NewCFBEncrypter(block, iv)
	stream.XORKeyStream(cipherText[aes.BlockSize:], text)
	return base32.StdEncoding.EncodeToString(cipherText)
}


func main(){
	key := []byte("1234567890123456")
	var login,psw,host,port string
	fmt.Print("Enter login: ")
	fmt.Fscan(os.Stdin, &login)
	fmt.Print("Enter password: ")
	fmt.Fscan(os.Stdin, &psw)
	fmt.Print("Enter host: ")
	fmt.Fscan(os.Stdin, &host)
	fmt.Print("Enter port: ")
	fmt.Fscan(os.Stdin, &port)

	map1 := map[string]string{
		"login": login,
		"port": port,
		"password": encrypt(key, []byte(psw)),
		"host": host,
	}
	map2, _ := json.Marshal(map1)
	file,_ := os.Create("config.json")
	file.Write(map2)
	defer file.Close()
	file, err := os.Open("config.json")
	if err != nil {
		fmt.Println(err)
		os.Exit(1)
	}
	defer file.Close()
	dat := make([]byte,1000)
	n, err := file.Read(dat)
	var data map[string]string
	if err := json.Unmarshal([]byte(dat[:n]), &data); err != nil {
		panic(err)
	}
}