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

   1 package hotline
   2
   3 import (
   4         "encoding/binary"
   5         "github.com/jhalter/mobius/concat"
   6 )
   7
   8 const GuestAccount = "guest" // default account used when no login is provided for a connection
   9
  10 type Account struct {
  11         Login    string  `yaml:"Login"`
  12         Name     string  `yaml:"Name"`
  13         Password string  `yaml:"Password"`
  14         Access   *[]byte `yaml:"Access"` // 8 byte bitmap
  15 }
  16
  17 // Payload marshals an account to byte slice
  18 // Example:
  19 //      00 04 // fieldCount?
  20 //      00 66 // 102 - fieldUserName
  21 //      00 0d // 13
  22 //      61 64 6d 69 6e 69 73 74 72 61 74 6f 72 // administrator
  23 //      00 69 // 105 fieldUserLogin (encoded)
  24 //      00 05 // len
  25 //      9e 9b 92 96 91 // encoded login name
  26 //      00 6a // 106 fieldUserPassword
  27 //      00 01  // len
  28 //      78
  29 //      00 6e  // fieldUserAccess
  30 //      00 08
  31 //      ff d3 cf ef ff 80 00 00
  32 func (a *Account) Payload() (out []byte) {
  33         nameLen := make([]byte, 2)
  34         binary.BigEndian.PutUint16(nameLen, uint16(len(a.Name)))
  35
  36         loginLen := make([]byte, 2)
  37         binary.BigEndian.PutUint16(loginLen, uint16(len(a.Login)))
  38
  39         return concat.Slices(
  40                 []byte{0x00, 0x3}, // param count -- always 3
  41
  42                 []byte{0x00, 0x66}, // fieldUserName
  43                 nameLen,
  44                 []byte(a.Name),
  45
  46                 []byte{0x00, 0x69}, // fieldUserLogin
  47                 loginLen,
  48                 negateString([]byte(a.Login)),
  49
  50                 []byte{0x00, 0x6e}, // fieldUserAccess
  51                 []byte{0x00, 0x08},
  52                 *a.Access,
  53         )
  54 }