66 lines
1.2 KiB
Go
66 lines
1.2 KiB
Go
package happydns
|
|
|
|
import (
|
|
"crypto/hmac"
|
|
"crypto/rand"
|
|
"crypto/sha512"
|
|
"time"
|
|
)
|
|
|
|
type User struct {
|
|
Id int64
|
|
Email string
|
|
Password []byte
|
|
Salt []byte
|
|
RegistrationTime *time.Time
|
|
}
|
|
|
|
type Users []*User
|
|
|
|
func GenPassword(password string, salt []byte) []byte {
|
|
return hmac.New(sha512.New512_224, []byte(password)).Sum(salt)
|
|
}
|
|
|
|
func NewUser(email string, password string) (u *User, err error) {
|
|
t := time.Now()
|
|
|
|
u = &User{
|
|
Id: 0,
|
|
Email: email,
|
|
RegistrationTime: &t,
|
|
}
|
|
|
|
err = u.DefinePassword(password)
|
|
|
|
return
|
|
}
|
|
|
|
// DefinePassword computes the expected hash for the given password and also
|
|
// renew the User's Salt.
|
|
func (u *User) DefinePassword(password string) error {
|
|
// Renew salt
|
|
u.Salt = make([]byte, 64)
|
|
if _, err := rand.Read(u.Salt); err != nil {
|
|
return err
|
|
}
|
|
|
|
// Compute password hash
|
|
u.Password = GenPassword(password, u.Salt)
|
|
|
|
return nil
|
|
}
|
|
|
|
func (u *User) CheckAuth(password string) bool {
|
|
pass := GenPassword(password, u.Salt)
|
|
if len(pass) != len(u.Password) {
|
|
return false
|
|
} else {
|
|
for k := range pass {
|
|
if pass[k] != u.Password[k] {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
}
|