dyndns/service/userconfig.go
Torben Nehmer 7b93ff425d - Added sample default config (needs manual updating)
- Reworked service and webapi config to Viper unmarshalling
- Added Pretty Printers to config
2021-08-22 14:46:48 +02:00

104 lines
2.2 KiB
Go

package service
import (
"encoding/json"
"fmt"
"log"
"os"
"path"
"github.com/spf13/viper"
"golang.org/x/crypto/bcrypt"
)
type UnauthorizedError string
func (uae UnauthorizedError) Error() string {
return "Invalid user or password"
}
type UserConfig struct {
DB *viper.Viper
UserName string
PassWord string
Router UserConfigRouter
Others []UserConfigOther
}
type UserConfigRouter struct {
DNS string
NFT UserConfigNFT
}
type UserConfigOther struct {
DNS string
V6IID string
RegisterV4 bool
NFT UserConfigNFT
}
type UserConfigNFT struct {
Table string
Set4 string
Set6 string
}
func LoadConfigForUser(username string, password string) (*UserConfig, error) {
configFile := fmt.Sprintf("%s/%s.yml", C.Users.ConfigDir, username)
configFile = path.Clean(configFile)
log.Printf("Trying to load config file %s for user %s", configFile, username)
if _, err := os.Stat(configFile); err != nil {
log.Printf("cannot stat the file %s: %v", configFile, err)
return nil, UnauthorizedError("cannot stat")
}
v := viper.New()
v.SetConfigFile(configFile)
err := v.ReadInConfig()
if err != nil {
return nil, fmt.Errorf("failed to parse config file %s: %v", configFile, err)
}
result := &UserConfig{DB: v}
err = result.PasswordCheck(password)
if err != nil {
return nil, UnauthorizedError("pwcheck failed")
}
err = result.DB.Unmarshal(result)
if err != nil {
return nil, fmt.Errorf("failed to unmarshal config file %s: %v", configFile, err)
}
return result, nil
}
func HashPassword(pw []byte) (string, error) {
hash, err := bcrypt.GenerateFromPassword(pw, bcrypt.DefaultCost)
if err != nil {
return "", fmt.Errorf("failed to create password hash: %v", err)
}
return string(hash), nil
}
func (ur *UserConfig) PasswordCheck(pwToCheck string) error {
hashedPassword := []byte(ur.DB.GetString("password"))
bytePwToCheck := []byte(pwToCheck)
err := bcrypt.CompareHashAndPassword(hashedPassword, bytePwToCheck)
return err
}
func (uc *UserConfig) PrettyPrint() string {
s, err := json.MarshalIndent(uc, "", " ")
if err != nil {
log.Fatalf("Failed to pretty print UpdateConfig via JSON: %v", err)
}
return string(s)
}