diff --git a/proxy/vmess/validator.go b/proxy/vmess/validator.go
new file mode 100644
index 00000000..38035cb0
--- /dev/null
+++ b/proxy/vmess/validator.go
@@ -0,0 +1,166 @@
+package vmess
+
+import (
+	"strings"
+	"sync"
+	"time"
+
+	"v2ray.com/core/common"
+	"v2ray.com/core/common/protocol"
+	"v2ray.com/core/common/task"
+)
+
+const (
+	updateInterval   = 10 * time.Second
+	cacheDurationSec = 120
+)
+
+type user struct {
+	user    protocol.MemoryUser
+	lastSec protocol.Timestamp
+}
+
+type TimedUserValidator struct {
+	sync.RWMutex
+	users    []*user
+	userHash map[[16]byte]indexTimePair
+	hasher   protocol.IDHash
+	baseTime protocol.Timestamp
+	task     *task.Periodic
+}
+
+type indexTimePair struct {
+	user    *user
+	timeInc uint32
+}
+
+func NewTimedUserValidator(hasher protocol.IDHash) *TimedUserValidator {
+	tuv := &TimedUserValidator{
+		users:    make([]*user, 0, 16),
+		userHash: make(map[[16]byte]indexTimePair, 1024),
+		hasher:   hasher,
+		baseTime: protocol.Timestamp(time.Now().Unix() - cacheDurationSec*2),
+	}
+	tuv.task = &task.Periodic{
+		Interval: updateInterval,
+		Execute: func() error {
+			tuv.updateUserHash()
+			return nil
+		},
+	}
+	common.Must(tuv.task.Start())
+	return tuv
+}
+
+func (v *TimedUserValidator) generateNewHashes(nowSec protocol.Timestamp, user *user) {
+	var hashValue [16]byte
+	genHashForID := func(id *protocol.ID) {
+		idHash := v.hasher(id.Bytes())
+		lastSec := user.lastSec
+		if lastSec < nowSec-cacheDurationSec*2 {
+			lastSec = nowSec - cacheDurationSec*2
+		}
+		for ts := lastSec; ts <= nowSec; ts++ {
+			common.Must2(idHash.Write(ts.Bytes(nil)))
+			idHash.Sum(hashValue[:0])
+			idHash.Reset()
+
+			v.userHash[hashValue] = indexTimePair{
+				user:    user,
+				timeInc: uint32(ts - v.baseTime),
+			}
+		}
+	}
+
+	account := user.user.Account.(*MemoryAccount)
+
+	genHashForID(account.ID)
+	for _, id := range account.AlterIDs {
+		genHashForID(id)
+	}
+	user.lastSec = nowSec
+}
+
+func (v *TimedUserValidator) removeExpiredHashes(expire uint32) {
+	for key, pair := range v.userHash {
+		if pair.timeInc < expire {
+			delete(v.userHash, key)
+		}
+	}
+}
+
+func (v *TimedUserValidator) updateUserHash() {
+	now := time.Now()
+	nowSec := protocol.Timestamp(now.Unix() + cacheDurationSec)
+	v.Lock()
+	defer v.Unlock()
+
+	for _, user := range v.users {
+		v.generateNewHashes(nowSec, user)
+	}
+
+	expire := protocol.Timestamp(now.Unix() - cacheDurationSec)
+	if expire > v.baseTime {
+		v.removeExpiredHashes(uint32(expire - v.baseTime))
+	}
+}
+
+func (v *TimedUserValidator) Add(u *protocol.MemoryUser) error {
+	v.Lock()
+	defer v.Unlock()
+
+	nowSec := time.Now().Unix()
+
+	uu := &user{
+		user:    *u,
+		lastSec: protocol.Timestamp(nowSec - cacheDurationSec),
+	}
+	v.users = append(v.users, uu)
+	v.generateNewHashes(protocol.Timestamp(nowSec+cacheDurationSec), uu)
+
+	return nil
+}
+
+func (v *TimedUserValidator) Get(userHash []byte) (*protocol.MemoryUser, protocol.Timestamp, bool) {
+	defer v.RUnlock()
+	v.RLock()
+
+	var fixedSizeHash [16]byte
+	copy(fixedSizeHash[:], userHash)
+	pair, found := v.userHash[fixedSizeHash]
+	if found {
+		var user protocol.MemoryUser
+		user = pair.user.user
+		return &user, protocol.Timestamp(pair.timeInc) + v.baseTime, true
+	}
+	return nil, 0, false
+}
+
+func (v *TimedUserValidator) Remove(email string) bool {
+	v.Lock()
+	defer v.Unlock()
+
+	email = strings.ToLower(email)
+	idx := -1
+	for i, u := range v.users {
+		if strings.ToLower(u.user.Email) == email {
+			idx = i
+			break
+		}
+	}
+	if idx == -1 {
+		return false
+	}
+	ulen := len(v.users)
+	if idx < ulen {
+		v.users[idx] = v.users[ulen-1]
+		v.users[ulen-1] = nil
+		v.users = v.users[:ulen-1]
+	}
+	return true
+}
+
+// Close implements common.Closable.
+func (v *TimedUserValidator) Close() error {
+	return v.task.Close()
+}
diff --git a/proxy/vmess/vmess_test.go b/proxy/vmess/validator_test.go
similarity index 100%
rename from proxy/vmess/vmess_test.go
rename to proxy/vmess/validator_test.go
diff --git a/proxy/vmess/vmess.go b/proxy/vmess/vmess.go
index 0d49fac6..9e22db61 100644
--- a/proxy/vmess/vmess.go
+++ b/proxy/vmess/vmess.go
@@ -6,168 +6,3 @@
 package vmess
 
 //go:generate errorgen
-
-import (
-	"strings"
-	"sync"
-	"time"
-
-	"v2ray.com/core/common"
-	"v2ray.com/core/common/protocol"
-	"v2ray.com/core/common/task"
-)
-
-const (
-	updateInterval   = 10 * time.Second
-	cacheDurationSec = 120
-)
-
-type user struct {
-	user    protocol.MemoryUser
-	lastSec protocol.Timestamp
-}
-
-type TimedUserValidator struct {
-	sync.RWMutex
-	users    []*user
-	userHash map[[16]byte]indexTimePair
-	hasher   protocol.IDHash
-	baseTime protocol.Timestamp
-	task     *task.Periodic
-}
-
-type indexTimePair struct {
-	user    *user
-	timeInc uint32
-}
-
-func NewTimedUserValidator(hasher protocol.IDHash) *TimedUserValidator {
-	tuv := &TimedUserValidator{
-		users:    make([]*user, 0, 16),
-		userHash: make(map[[16]byte]indexTimePair, 1024),
-		hasher:   hasher,
-		baseTime: protocol.Timestamp(time.Now().Unix() - cacheDurationSec*2),
-	}
-	tuv.task = &task.Periodic{
-		Interval: updateInterval,
-		Execute: func() error {
-			tuv.updateUserHash()
-			return nil
-		},
-	}
-	common.Must(tuv.task.Start())
-	return tuv
-}
-
-func (v *TimedUserValidator) generateNewHashes(nowSec protocol.Timestamp, user *user) {
-	var hashValue [16]byte
-	genHashForID := func(id *protocol.ID) {
-		idHash := v.hasher(id.Bytes())
-		lastSec := user.lastSec
-		if lastSec < nowSec-cacheDurationSec*2 {
-			lastSec = nowSec - cacheDurationSec*2
-		}
-		for ts := lastSec; ts <= nowSec; ts++ {
-			common.Must2(idHash.Write(ts.Bytes(nil)))
-			idHash.Sum(hashValue[:0])
-			idHash.Reset()
-
-			v.userHash[hashValue] = indexTimePair{
-				user:    user,
-				timeInc: uint32(ts - v.baseTime),
-			}
-		}
-	}
-
-	account := user.user.Account.(*MemoryAccount)
-
-	genHashForID(account.ID)
-	for _, id := range account.AlterIDs {
-		genHashForID(id)
-	}
-	user.lastSec = nowSec
-}
-
-func (v *TimedUserValidator) removeExpiredHashes(expire uint32) {
-	for key, pair := range v.userHash {
-		if pair.timeInc < expire {
-			delete(v.userHash, key)
-		}
-	}
-}
-
-func (v *TimedUserValidator) updateUserHash() {
-	now := time.Now()
-	nowSec := protocol.Timestamp(now.Unix() + cacheDurationSec)
-	v.Lock()
-	defer v.Unlock()
-
-	for _, user := range v.users {
-		v.generateNewHashes(nowSec, user)
-	}
-
-	expire := protocol.Timestamp(now.Unix() - cacheDurationSec)
-	if expire > v.baseTime {
-		v.removeExpiredHashes(uint32(expire - v.baseTime))
-	}
-}
-
-func (v *TimedUserValidator) Add(u *protocol.MemoryUser) error {
-	v.Lock()
-	defer v.Unlock()
-
-	nowSec := time.Now().Unix()
-
-	uu := &user{
-		user:    *u,
-		lastSec: protocol.Timestamp(nowSec - cacheDurationSec),
-	}
-	v.users = append(v.users, uu)
-	v.generateNewHashes(protocol.Timestamp(nowSec+cacheDurationSec), uu)
-
-	return nil
-}
-
-func (v *TimedUserValidator) Get(userHash []byte) (*protocol.MemoryUser, protocol.Timestamp, bool) {
-	defer v.RUnlock()
-	v.RLock()
-
-	var fixedSizeHash [16]byte
-	copy(fixedSizeHash[:], userHash)
-	pair, found := v.userHash[fixedSizeHash]
-	if found {
-		var user protocol.MemoryUser
-		user = pair.user.user
-		return &user, protocol.Timestamp(pair.timeInc) + v.baseTime, true
-	}
-	return nil, 0, false
-}
-
-func (v *TimedUserValidator) Remove(email string) bool {
-	v.Lock()
-	defer v.Unlock()
-
-	email = strings.ToLower(email)
-	idx := -1
-	for i, u := range v.users {
-		if strings.ToLower(u.user.Email) == email {
-			idx = i
-			break
-		}
-	}
-	if idx == -1 {
-		return false
-	}
-	ulen := len(v.users)
-	if idx < ulen {
-		v.users[idx] = v.users[ulen-1]
-		v.users[ulen-1] = nil
-		v.users = v.users[:ulen-1]
-	}
-	return true
-}
-
-// Close implements common.Closable.
-func (v *TimedUserValidator) Close() error {
-	return v.task.Close()
-}