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v2fly/common/protocol/id.go

52 lines
819 B
Go

package protocol
import (
"crypto/md5"
"errors"
"github.com/v2ray/v2ray-core/common/uuid"
)
const (
IDBytesLen = 16
)
var (
InvalidID = errors.New("Invalid ID.")
)
// The ID of en entity, in the form of an UUID.
type ID struct {
uuid *uuid.UUID
cmdKey [IDBytesLen]byte
}
func (this *ID) Equals(another *ID) bool {
return this.uuid.Equals(another.uuid)
}
func (this *ID) Bytes() []byte {
return this.uuid.Bytes()
}
func (this *ID) String() string {
return this.uuid.String()
}
func (this *ID) UUID() *uuid.UUID {
return this.uuid
}
func (v ID) CmdKey() []byte {
return v.cmdKey[:]
}
func NewID(uuid *uuid.UUID) *ID {
id := &ID{uuid: uuid}
md5hash := md5.New()
md5hash.Write(uuid.Bytes())
md5hash.Write([]byte("c48619fe-8f02-49e0-b9e9-edf763e17e21"))
md5hash.Sum(id.cmdKey[:0])
return id
}