forked from urdt/ussd
48 lines
811 B
Go
48 lines
811 B
Go
|
package debug
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"encoding/binary"
|
||
|
|
|
||
|
|
"git.grassecon.net/urdt/ussd/internal/storage"
|
||
|
|
"git.grassecon.net/urdt/ussd/common"
|
||
|
|
)
|
||
|
|
|
||
|
|
type KeyInfo struct {
|
||
|
|
SessionId string
|
||
|
|
Typ uint8
|
||
|
|
SubTyp common.DataTyp
|
||
|
|
Label string
|
||
|
|
Description string
|
||
|
|
}
|
||
|
|
|
||
|
|
func ToKeyInfo(k []byte, sessionId string) (KeyInfo, error) {
|
||
|
|
o := KeyInfo{}
|
||
|
|
b := []byte(sessionId)
|
||
|
|
if len(k) <= len(b) {
|
||
|
|
return o, fmt.Errorf("storage key missing")
|
||
|
|
}
|
||
|
|
|
||
|
|
o.SessionId = sessionId
|
||
|
|
|
||
|
|
k = k[len(b):]
|
||
|
|
o.Typ = k[0]
|
||
|
|
k = k[1:]
|
||
|
|
|
||
|
|
if o.Typ == storage.DATATYPE_USERSUB {
|
||
|
|
if len(k) == 0 {
|
||
|
|
return o, fmt.Errorf("missing subtype key")
|
||
|
|
}
|
||
|
|
v := binary.BigEndian.Uint16(k[:2])
|
||
|
|
o.SubTyp = common.DataTyp(v)
|
||
|
|
o.Label = typToString(o.SubTyp)
|
||
|
|
k = k[2:]
|
||
|
|
}
|
||
|
|
|
||
|
|
if len(k) != 0 {
|
||
|
|
return o, fmt.Errorf("excess key information")
|
||
|
|
}
|
||
|
|
|
||
|
|
return o, nil
|
||
|
|
}
|