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mirror of https://github.com/v2fly/v2ray-core.git synced 2024-10-08 20:19:10 -04:00
v2fly/vuserset.go
2015-09-09 01:11:02 +02:00

41 lines
846 B
Go

package core
import (
"encoding/base64"
)
type VUserSet struct {
validUserIds []VID
userIdsAskHash map[string]int
}
func NewVUserSet() *VUserSet {
vuSet := new(VUserSet)
vuSet.validUserIds = make([]VID, 0, 16)
vuSet.userIdsAskHash = make(map[string]int)
return vuSet
}
func hashBytesToString(hash []byte) string {
return base64.StdEncoding.EncodeToString(hash)
}
func (us *VUserSet) AddUser(user VUser) error {
id := user.Id
us.validUserIds = append(us.validUserIds, id)
idBase64 := hashBytesToString(id.Hash([]byte("ASK")))
us.userIdsAskHash[idBase64] = len(us.validUserIds) - 1
return nil
}
func (us VUserSet) IsValidUserId(askHash []byte) (*VID, bool) {
askBase64 := hashBytesToString(askHash)
idIndex, found := us.userIdsAskHash[askBase64]
if found {
return &us.validUserIds[idIndex], true
}
return nil, false
}