code.octet-stream.net Git - broadcaster/blob - broadcaster-server/user.go

   1 package main
   2
   3 import (
   4         "errors"
   5         "golang.org/x/crypto/bcrypt"
   6 )
   7
   8 var users Users
   9
  10 type Users struct{}
  11
  12 func (u *Users) GetUserForSession(token string) (User, error) {
  13         username, err := db.GetUserNameForSession(token)
  14         if err != nil {
  15                 return User{}, err
  16         }
  17         user, err := db.GetUser(username)
  18         if err != nil {
  19                 return User{}, err
  20         }
  21         return user, nil
  22 }
  23
  24 func (u *Users) Authenticate(username string, clearPassword string) (User, error) {
  25         user, err := db.GetUser(username)
  26         if err != nil {
  27                 return User{}, err
  28         }
  29         err = bcrypt.CompareHashAndPassword([]byte(user.PasswordHash), []byte(clearPassword))
  30         if err != nil {
  31                 return User{}, err
  32         }
  33         return user, nil
  34 }
  35
  36 func (u *Users) CreateUser(username string, clearPassword string, isAdmin bool) error {
  37         if clearPassword == "" {
  38                 return errors.New("password cannot be empty")
  39         }
  40         hashed, err := bcrypt.GenerateFromPassword([]byte(clearPassword), bcrypt.DefaultCost)
  41         if err != nil {
  42                 return err
  43         }
  44         return db.CreateUser(User{
  45                 Id:           0,
  46                 Username:     username,
  47                 PasswordHash: string(hashed),
  48                 IsAdmin:      isAdmin,
  49         })
  50 }
  51
  52 func (u *Users) DeleteUser(username string) {
  53         db.DeleteUser(username)
  54 }
  55
  56 func (u *Users) UpdatePassword(username string, oldClearPassword string, newClearPassword string) error {
  57         user, err := db.GetUser(username)
  58         if err != nil {
  59                 return err
  60         }
  61         err = bcrypt.CompareHashAndPassword([]byte(user.PasswordHash), []byte(oldClearPassword))
  62         if err != nil {
  63                 return errors.New("old password is incorrect")
  64         }
  65         if newClearPassword == "" {
  66                 return errors.New("password cannot be empty")
  67         }
  68         hashed, err := bcrypt.GenerateFromPassword([]byte(newClearPassword), bcrypt.DefaultCost)
  69         if err != nil {
  70                 return err
  71         }
  72         db.SetUserPassword(username, string(hashed))
  73         return nil
  74 }
  75
  76 func (u *Users) UpdateIsAdmin(username string, isAdmin bool) {
  77         db.SetUserIsAdmin(username, isAdmin)
  78 }
  79
  80 func (u *Users) Users() []User {
  81         return db.GetUsers()
  82 }