106 lines
2.6 KiB
Go
106 lines
2.6 KiB
Go
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package localconfig
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import (
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"bufio"
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"encoding/json"
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"errors"
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"fmt"
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"math/rand"
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"os"
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"strings"
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"time"
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"github.com/ProtonMail/gopenpgp/v2/helper"
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"github.com/howeyc/gopass"
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)
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// Creds is user credentials
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type Creds struct {
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Login string
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Password string
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}
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func randomString(n int) string {
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rand.Seed(time.Now().UnixNano())
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var letters = []rune("яшертёыуиопющэъасдфгчйкльжзхцвбнмabéàèùàçïôÖcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789&([-|_@])=+§!:;,*%$£µ")
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s := make([]rune, n)
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for i := range s {
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s[i] = letters[rand.Intn(len(letters))]
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}
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return string(s)
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}
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func loadRootKey() []byte {
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rkpath := getConfig("rk")
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rk, err := os.ReadFile(rkpath)
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if err != nil {
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rk = []byte(randomString(64))
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os.WriteFile(rkpath, rk, 0600)
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}
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return rk
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}
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func (creds *Creds) Exists(filename string) bool {
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if _, err := os.Stat(getConfig(filename)); err == nil {
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return true
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} else if errors.Is(err, os.ErrNotExist) {
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return false
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} else {
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return false
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}
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}
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// Init will initalize login/password
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func (creds *Creds) Init(filename string) {
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fmt.Print("Enter login: ")
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var login string
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reader := bufio.NewReader(os.Stdin)
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login, _ = reader.ReadString('\n')
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creds.Login = strings.Trim(login, "\r\n")
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if login != "" {
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fmt.Print("Enter password:")
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bytePassword, _ := gopass.GetPasswd()
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silentPassword := string(bytePassword)
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if silentPassword != "" {
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creds.Password = silentPassword
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b, _ := json.Marshal(creds)
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fmt.Println("Writing credentials to : " + getConfig(filename))
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armor, _ := helper.EncryptMessageWithPassword(loadRootKey(), string(b))
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os.WriteFile(getConfig(filename), []byte(armor), 0600)
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}
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}
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}
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// Pw : update password
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func (creds *Creds) NewPw(filename string) {
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fmt.Print("Enter new password:")
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bytePassword, _ := gopass.GetPasswd()
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silentPassword := string(bytePassword)
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if silentPassword != "" {
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creds.Password = silentPassword
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b, _ := json.Marshal(creds)
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armor, _ := helper.EncryptMessageWithPassword(loadRootKey(), string(b))
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os.WriteFile(getConfig(filename), []byte(armor), 0600)
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}
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}
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// Load credentials if available or creates them
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func (creds *Creds) Load(filename string) error {
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indata, err := os.ReadFile(getConfig(filename))
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if err != nil {
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creds.Init(filename)
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return nil
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}
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pass, err := helper.DecryptMessageWithPassword(loadRootKey(), string(indata))
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if err != nil {
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creds.Init(filename)
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return nil
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}
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err = json.Unmarshal([]byte(pass), &creds)
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if err != nil {
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creds.Init(filename)
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return nil
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}
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return nil
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}
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