git.r.bdr.sh - rbdr/mobius/blob - hotline/account.go

   1 package hotline
   2
   3 import (
   4         "encoding/binary"
   5         "golang.org/x/crypto/bcrypt"
   6         "log"
   7 )
   8
   9 const GuestAccount = "guest" // default account used when no login is provided for a connection
  10
  11 type Account struct {
  12         Login    string       `yaml:"Login"`
  13         Name     string       `yaml:"Name"`
  14         Password string       `yaml:"Password"`
  15         Access   accessBitmap `yaml:"Access"`
  16 }
  17
  18 // Read implements io.Reader interface for Account
  19 func (a *Account) Read(p []byte) (n int, err error) {
  20         fields := []Field{
  21                 NewField(fieldUserName, []byte(a.Name)),
  22                 NewField(fieldUserLogin, negateString([]byte(a.Login))),
  23                 NewField(fieldUserAccess, a.Access[:]),
  24         }
  25
  26         if bcrypt.CompareHashAndPassword([]byte(a.Password), []byte("")) != nil {
  27                 fields = append(fields, NewField(fieldUserPassword, []byte("x")))
  28         }
  29
  30         fieldCount := make([]byte, 2)
  31         binary.BigEndian.PutUint16(fieldCount, uint16(len(fields)))
  32
  33         p = append(p, fieldCount...)
  34
  35         for _, field := range fields {
  36                 p = append(p, field.Payload()...)
  37         }
  38
  39         return len(p), nil
  40 }
  41
  42 // hashAndSalt generates a password hash from a users obfuscated plaintext password
  43 func hashAndSalt(pwd []byte) string {
  44         hash, err := bcrypt.GenerateFromPassword(pwd, bcrypt.MinCost)
  45         if err != nil {
  46                 log.Println(err)
  47         }
  48
  49         return string(hash)
  50 }