forked from mirror/go.uuid
Moved all generation related logic into `generator.go`.
Abstracted behind `Generator` interface for easy mocking in tests.
This commit is contained in:
Alexey Kudinkin
Maxim Bublis
parent
508dbd67f2
commit
b86a6b7dda
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@ -0,0 +1,239 @@
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// Copyright (C) 2013-2018 by Maxim Bublis <b@codemonkey.ru>
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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package uuid
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import (
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"crypto/md5"
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"crypto/rand"
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"crypto/sha1"
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"encoding/binary"
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"hash"
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"net"
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"os"
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"sync"
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"time"
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)
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// Difference in 100-nanosecond intervals between
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// UUID epoch (October 15, 1582) and Unix epoch (January 1, 1970).
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const epochStart = 122192928000000000
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var (
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global = newDefaultGenerator()
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epochFunc = unixTimeFunc
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posixUID = uint32(os.Getuid())
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posixGID = uint32(os.Getgid())
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)
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// NewV1 returns UUID based on current timestamp and MAC address.
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func NewV1() UUID {
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return global.NewV1()
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}
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// NewV2 returns DCE Security UUID based on POSIX UID/GID.
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func NewV2(domain byte) UUID {
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return global.NewV2(domain)
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}
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// NewV3 returns UUID based on MD5 hash of namespace UUID and name.
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func NewV3(ns UUID, name string) UUID {
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return global.NewV3(ns, name)
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}
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// NewV4 returns random generated UUID.
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func NewV4() UUID {
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return global.NewV4()
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}
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// NewV5 returns UUID based on SHA-1 hash of namespace UUID and name.
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func NewV5(ns UUID, name string) UUID {
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return global.NewV5(ns, name)
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}
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// Generator provides interface for generating UUIDs.
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type Generator interface {
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NewV1() UUID
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NewV2(domain byte) UUID
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NewV3(ns UUID, name string) UUID
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NewV4() UUID
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NewV5(ns UUID, name string) UUID
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}
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// Default generator implementation.
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type generator struct {
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storageOnce sync.Once
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storageMutex sync.Mutex
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lastTime uint64
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clockSequence uint16
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hardwareAddr [6]byte
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}
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func newDefaultGenerator() Generator {
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return &generator{}
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}
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// NewV1 returns UUID based on current timestamp and MAC address.
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func (g *generator) NewV1() UUID {
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u := UUID{}
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timeNow, clockSeq, hardwareAddr := g.getStorage()
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binary.BigEndian.PutUint32(u[0:], uint32(timeNow))
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binary.BigEndian.PutUint16(u[4:], uint16(timeNow>>32))
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binary.BigEndian.PutUint16(u[6:], uint16(timeNow>>48))
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binary.BigEndian.PutUint16(u[8:], clockSeq)
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copy(u[10:], hardwareAddr)
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u.SetVersion(1)
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u.SetVariant()
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return u
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}
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// NewV2 returns DCE Security UUID based on POSIX UID/GID.
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func (g *generator) NewV2(domain byte) UUID {
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u := UUID{}
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timeNow, clockSeq, hardwareAddr := g.getStorage()
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switch domain {
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case DomainPerson:
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binary.BigEndian.PutUint32(u[0:], posixUID)
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case DomainGroup:
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binary.BigEndian.PutUint32(u[0:], posixGID)
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}
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binary.BigEndian.PutUint16(u[4:], uint16(timeNow>>32))
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binary.BigEndian.PutUint16(u[6:], uint16(timeNow>>48))
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binary.BigEndian.PutUint16(u[8:], clockSeq)
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u[9] = domain
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copy(u[10:], hardwareAddr)
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u.SetVersion(2)
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u.SetVariant()
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return u
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}
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// NewV3 returns UUID based on MD5 hash of namespace UUID and name.
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func (g *generator) NewV3(ns UUID, name string) UUID {
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u := newFromHash(md5.New(), ns, name)
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u.SetVersion(3)
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u.SetVariant()
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return u
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}
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// NewV4 returns random generated UUID.
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func (g *generator) NewV4() UUID {
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u := UUID{}
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g.safeRandom(u[:])
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u.SetVersion(4)
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u.SetVariant()
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return u
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}
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// NewV5 returns UUID based on SHA-1 hash of namespace UUID and name.
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func (g *generator) NewV5(ns UUID, name string) UUID {
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u := newFromHash(sha1.New(), ns, name)
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u.SetVersion(5)
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u.SetVariant()
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return u
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}
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func (g *generator) initStorage() {
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g.initClockSequence()
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g.initHardwareAddr()
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}
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func (g *generator) initClockSequence() {
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buf := make([]byte, 2)
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g.safeRandom(buf)
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g.clockSequence = binary.BigEndian.Uint16(buf)
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}
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func (g *generator) initHardwareAddr() {
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interfaces, err := net.Interfaces()
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if err == nil {
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for _, iface := range interfaces {
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if len(iface.HardwareAddr) >= 6 {
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copy(g.hardwareAddr[:], iface.HardwareAddr)
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return
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}
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}
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}
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// Initialize hardwareAddr randomly in case
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// of real network interfaces absence
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g.safeRandom(g.hardwareAddr[:])
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// Set multicast bit as recommended in RFC 4122
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g.hardwareAddr[0] |= 0x01
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}
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func (g *generator) safeRandom(dest []byte) {
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if _, err := rand.Read(dest); err != nil {
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panic(err)
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}
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}
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// Returns UUID v1/v2 storage state.
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// Returns epoch timestamp, clock sequence, and hardware address.
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func (g *generator) getStorage() (uint64, uint16, []byte) {
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g.storageOnce.Do(g.initStorage)
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g.storageMutex.Lock()
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defer g.storageMutex.Unlock()
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timeNow := epochFunc()
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// Clock changed backwards since last UUID generation.
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// Should increase clock sequence.
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if timeNow <= g.lastTime {
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g.clockSequence++
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}
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g.lastTime = timeNow
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return timeNow, g.clockSequence, g.hardwareAddr[:]
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}
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// Returns difference in 100-nanosecond intervals between
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// UUID epoch (October 15, 1582) and current time.
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// This is default epoch calculation function.
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func unixTimeFunc() uint64 {
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return epochStart + uint64(time.Now().UnixNano()/100)
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}
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// Returns UUID based on hashing of namespace UUID and name.
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func newFromHash(h hash.Hash, ns UUID, name string) UUID {
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u := UUID{}
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h.Write(ns[:])
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h.Write([]byte(name))
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copy(u[:], h.Sum(nil))
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return u
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}
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@ -0,0 +1,140 @@
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package uuid
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import "testing"
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func TestNewV1(t *testing.T) {
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u := NewV1()
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if u.Version() != 1 {
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t.Errorf("UUIDv1 generated with incorrect version: %d", u.Version())
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}
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if u.Variant() != VariantRFC4122 {
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t.Errorf("UUIDv1 generated with incorrect variant: %d", u.Variant())
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}
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u1 := NewV1()
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u2 := NewV1()
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if Equal(u1, u2) {
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t.Errorf("UUIDv1 generated two equal UUIDs: %s and %s", u1, u2)
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}
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oldFunc := epochFunc
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epochFunc = func() uint64 { return 0 }
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u3 := NewV1()
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u4 := NewV1()
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if Equal(u3, u4) {
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t.Errorf("UUIDv1 generated two equal UUIDs: %s and %s", u3, u4)
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}
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epochFunc = oldFunc
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}
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func TestNewV2(t *testing.T) {
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u1 := NewV2(DomainPerson)
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if u1.Version() != 2 {
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t.Errorf("UUIDv2 generated with incorrect version: %d", u1.Version())
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}
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if u1.Variant() != VariantRFC4122 {
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t.Errorf("UUIDv2 generated with incorrect variant: %d", u1.Variant())
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}
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u2 := NewV2(DomainGroup)
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if u2.Version() != 2 {
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t.Errorf("UUIDv2 generated with incorrect version: %d", u2.Version())
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}
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if u2.Variant() != VariantRFC4122 {
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t.Errorf("UUIDv2 generated with incorrect variant: %d", u2.Variant())
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}
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}
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func TestNewV3(t *testing.T) {
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u := NewV3(NamespaceDNS, "www.example.com")
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if u.Version() != 3 {
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t.Errorf("UUIDv3 generated with incorrect version: %d", u.Version())
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}
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if u.Variant() != VariantRFC4122 {
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t.Errorf("UUIDv3 generated with incorrect variant: %d", u.Variant())
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}
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if u.String() != "5df41881-3aed-3515-88a7-2f4a814cf09e" {
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t.Errorf("UUIDv3 generated incorrectly: %s", u.String())
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}
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u = NewV3(NamespaceDNS, "python.org")
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if u.String() != "6fa459ea-ee8a-3ca4-894e-db77e160355e" {
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t.Errorf("UUIDv3 generated incorrectly: %s", u.String())
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}
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u1 := NewV3(NamespaceDNS, "golang.org")
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u2 := NewV3(NamespaceDNS, "golang.org")
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if !Equal(u1, u2) {
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t.Errorf("UUIDv3 generated different UUIDs for same namespace and name: %s and %s", u1, u2)
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}
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u3 := NewV3(NamespaceDNS, "example.com")
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if Equal(u1, u3) {
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t.Errorf("UUIDv3 generated same UUIDs for different names in same namespace: %s and %s", u1, u2)
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}
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u4 := NewV3(NamespaceURL, "golang.org")
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if Equal(u1, u4) {
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t.Errorf("UUIDv3 generated same UUIDs for sane names in different namespaces: %s and %s", u1, u4)
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}
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}
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func TestNewV4(t *testing.T) {
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u := NewV4()
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if u.Version() != 4 {
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t.Errorf("UUIDv4 generated with incorrect version: %d", u.Version())
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}
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if u.Variant() != VariantRFC4122 {
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t.Errorf("UUIDv4 generated with incorrect variant: %d", u.Variant())
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}
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}
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func TestNewV5(t *testing.T) {
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u := NewV5(NamespaceDNS, "www.example.com")
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if u.Version() != 5 {
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t.Errorf("UUIDv5 generated with incorrect version: %d", u.Version())
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}
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if u.Variant() != VariantRFC4122 {
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t.Errorf("UUIDv5 generated with incorrect variant: %d", u.Variant())
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}
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u = NewV5(NamespaceDNS, "python.org")
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if u.String() != "886313e1-3b8a-5372-9b90-0c9aee199e5d" {
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t.Errorf("UUIDv5 generated incorrectly: %s", u.String())
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}
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u1 := NewV5(NamespaceDNS, "golang.org")
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u2 := NewV5(NamespaceDNS, "golang.org")
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if !Equal(u1, u2) {
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t.Errorf("UUIDv5 generated different UUIDs for same namespace and name: %s and %s", u1, u2)
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}
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u3 := NewV5(NamespaceDNS, "example.com")
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if Equal(u1, u3) {
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t.Errorf("UUIDv5 generated same UUIDs for different names in same namespace: %s and %s", u1, u2)
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}
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u4 := NewV5(NamespaceURL, "golang.org")
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if Equal(u1, u4) {
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t.Errorf("UUIDv3 generated same UUIDs for sane names in different namespaces: %s and %s", u1, u4)
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}
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}
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174
uuid.go
174
uuid.go
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@ -1,4 +1,4 @@
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// Copyright (C) 2013-2015 by Maxim Bublis <b@codemonkey.ru>
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// Copyright (C) 2013-2018 by Maxim Bublis <b@codemonkey.ru>
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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@ -26,18 +26,9 @@ package uuid
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import (
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"bytes"
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"crypto/md5"
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"crypto/rand"
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"crypto/sha1"
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"database/sql/driver"
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"encoding/binary"
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"encoding/hex"
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"fmt"
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"hash"
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"net"
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"os"
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"sync"
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"time"
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)
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// Size of a UUID in bytes.
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@ -58,74 +49,15 @@ const (
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DomainOrg
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)
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// Difference in 100-nanosecond intervals between
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// UUID epoch (October 15, 1582) and Unix epoch (January 1, 1970).
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const epochStart = 122192928000000000
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// Used in string method conversion
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const dash byte = '-'
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// UUID v1/v2 storage.
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var (
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storageMutex sync.Mutex
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storageOnce sync.Once
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epochFunc = unixTimeFunc
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clockSequence uint16
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lastTime uint64
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hardwareAddr [6]byte
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posixUID = uint32(os.Getuid())
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posixGID = uint32(os.Getgid())
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)
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// String parse helpers.
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var (
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urnPrefix = []byte("urn:uuid:")
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byteGroups = []int{8, 4, 4, 4, 12}
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)
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func initClockSequence() {
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buf := make([]byte, 2)
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safeRandom(buf)
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clockSequence = binary.BigEndian.Uint16(buf)
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}
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func initHardwareAddr() {
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interfaces, err := net.Interfaces()
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if err == nil {
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for _, iface := range interfaces {
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if len(iface.HardwareAddr) >= 6 {
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copy(hardwareAddr[:], iface.HardwareAddr)
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return
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}
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}
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}
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// Initialize hardwareAddr randomly in case
|
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// of real network interfaces absence
|
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safeRandom(hardwareAddr[:])
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|
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// Set multicast bit as recommended in RFC 4122
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hardwareAddr[0] |= 0x01
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}
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func initStorage() {
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initClockSequence()
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initHardwareAddr()
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}
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func safeRandom(dest []byte) {
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if _, err := rand.Read(dest); err != nil {
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panic(err)
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}
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}
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// Returns difference in 100-nanosecond intervals between
|
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// UUID epoch (October 15, 1582) and current time.
|
||||
// This is default epoch calculation function.
|
||||
func unixTimeFunc() uint64 {
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return epochStart + uint64(time.Now().UnixNano()/100)
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}
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// UUID representation compliant with specification
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// described in RFC 4122.
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type UUID [Size]byte
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|
@ -137,7 +69,7 @@ type NullUUID struct {
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|||
Valid bool
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}
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// The nil UUID is special form of UUID that is specified to have all
|
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// Nil is special form of UUID that is specified to have all
|
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// 128 bits set to zero.
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var Nil = UUID{}
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|
|
@ -427,108 +359,6 @@ func FromStringOrNil(input string) UUID {
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return uuid
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}
|
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|
||||
// Returns UUID v1/v2 storage state.
|
||||
// Returns epoch timestamp, clock sequence, and hardware address.
|
||||
func getStorage() (uint64, uint16, []byte) {
|
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storageOnce.Do(initStorage)
|
||||
|
||||
storageMutex.Lock()
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defer storageMutex.Unlock()
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|
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timeNow := epochFunc()
|
||||
// Clock changed backwards since last UUID generation.
|
||||
// Should increase clock sequence.
|
||||
if timeNow <= lastTime {
|
||||
clockSequence++
|
||||
}
|
||||
lastTime = timeNow
|
||||
|
||||
return timeNow, clockSequence, hardwareAddr[:]
|
||||
}
|
||||
|
||||
// NewV1 returns UUID based on current timestamp and MAC address.
|
||||
func NewV1() UUID {
|
||||
u := UUID{}
|
||||
|
||||
timeNow, clockSeq, hardwareAddr := getStorage()
|
||||
|
||||
binary.BigEndian.PutUint32(u[0:], uint32(timeNow))
|
||||
binary.BigEndian.PutUint16(u[4:], uint16(timeNow>>32))
|
||||
binary.BigEndian.PutUint16(u[6:], uint16(timeNow>>48))
|
||||
binary.BigEndian.PutUint16(u[8:], clockSeq)
|
||||
|
||||
copy(u[10:], hardwareAddr)
|
||||
|
||||
u.SetVersion(1)
|
||||
u.SetVariant()
|
||||
|
||||
return u
|
||||
}
|
||||
|
||||
// NewV2 returns DCE Security UUID based on POSIX UID/GID.
|
||||
func NewV2(domain byte) UUID {
|
||||
u := UUID{}
|
||||
|
||||
timeNow, clockSeq, hardwareAddr := getStorage()
|
||||
|
||||
switch domain {
|
||||
case DomainPerson:
|
||||
binary.BigEndian.PutUint32(u[0:], posixUID)
|
||||
case DomainGroup:
|
||||
binary.BigEndian.PutUint32(u[0:], posixGID)
|
||||
}
|
||||
|
||||
binary.BigEndian.PutUint16(u[4:], uint16(timeNow>>32))
|
||||
binary.BigEndian.PutUint16(u[6:], uint16(timeNow>>48))
|
||||
binary.BigEndian.PutUint16(u[8:], clockSeq)
|
||||
u[9] = domain
|
||||
|
||||
copy(u[10:], hardwareAddr)
|
||||
|
||||
u.SetVersion(2)
|
||||
u.SetVariant()
|
||||
|
||||
return u
|
||||
}
|
||||
|
||||
// NewV3 returns UUID based on MD5 hash of namespace UUID and name.
|
||||
func NewV3(ns UUID, name string) UUID {
|
||||
u := newFromHash(md5.New(), ns, name)
|
||||
u.SetVersion(3)
|
||||
u.SetVariant()
|
||||
|
||||
return u
|
||||
}
|
||||
|
||||
// NewV4 returns random generated UUID.
|
||||
func NewV4() UUID {
|
||||
u := UUID{}
|
||||
safeRandom(u[:])
|
||||
u.SetVersion(4)
|
||||
u.SetVariant()
|
||||
|
||||
return u
|
||||
}
|
||||
|
||||
// NewV5 returns UUID based on SHA-1 hash of namespace UUID and name.
|
||||
func NewV5(ns UUID, name string) UUID {
|
||||
u := newFromHash(sha1.New(), ns, name)
|
||||
u.SetVersion(5)
|
||||
u.SetVariant()
|
||||
|
||||
return u
|
||||
}
|
||||
|
||||
// Returns UUID based on hashing of namespace UUID and name.
|
||||
func newFromHash(h hash.Hash, ns UUID, name string) UUID {
|
||||
u := UUID{}
|
||||
h.Write(ns[:])
|
||||
h.Write([]byte(name))
|
||||
copy(u[:], h.Sum(nil))
|
||||
|
||||
return u
|
||||
}
|
||||
|
||||
// Must is a helper that wraps a call to a function returning (UUID, error)
|
||||
// and panics if the error is non-nil. It is intended for use in variable
|
||||
// initializations such as
|
||||
|
|
|
|||
137
uuid_test.go
137
uuid_test.go
|
|
@ -496,140 +496,3 @@ func TestNullUUIDScanNil(t *testing.T) {
|
|||
t.Errorf("NullUUID value should be equal to Nil: %v", u)
|
||||
}
|
||||
}
|
||||
|
||||
func TestNewV1(t *testing.T) {
|
||||
u := NewV1()
|
||||
|
||||
if u.Version() != 1 {
|
||||
t.Errorf("UUIDv1 generated with incorrect version: %d", u.Version())
|
||||
}
|
||||
|
||||
if u.Variant() != VariantRFC4122 {
|
||||
t.Errorf("UUIDv1 generated with incorrect variant: %d", u.Variant())
|
||||
}
|
||||
|
||||
u1 := NewV1()
|
||||
u2 := NewV1()
|
||||
|
||||
if Equal(u1, u2) {
|
||||
t.Errorf("UUIDv1 generated two equal UUIDs: %s and %s", u1, u2)
|
||||
}
|
||||
|
||||
oldFunc := epochFunc
|
||||
epochFunc = func() uint64 { return 0 }
|
||||
|
||||
u3 := NewV1()
|
||||
u4 := NewV1()
|
||||
|
||||
if Equal(u3, u4) {
|
||||
t.Errorf("UUIDv1 generated two equal UUIDs: %s and %s", u3, u4)
|
||||
}
|
||||
|
||||
epochFunc = oldFunc
|
||||
}
|
||||
|
||||
func TestNewV2(t *testing.T) {
|
||||
u1 := NewV2(DomainPerson)
|
||||
|
||||
if u1.Version() != 2 {
|
||||
t.Errorf("UUIDv2 generated with incorrect version: %d", u1.Version())
|
||||
}
|
||||
|
||||
if u1.Variant() != VariantRFC4122 {
|
||||
t.Errorf("UUIDv2 generated with incorrect variant: %d", u1.Variant())
|
||||
}
|
||||
|
||||
u2 := NewV2(DomainGroup)
|
||||
|
||||
if u2.Version() != 2 {
|
||||
t.Errorf("UUIDv2 generated with incorrect version: %d", u2.Version())
|
||||
}
|
||||
|
||||
if u2.Variant() != VariantRFC4122 {
|
||||
t.Errorf("UUIDv2 generated with incorrect variant: %d", u2.Variant())
|
||||
}
|
||||
}
|
||||
|
||||
func TestNewV3(t *testing.T) {
|
||||
u := NewV3(NamespaceDNS, "www.example.com")
|
||||
|
||||
if u.Version() != 3 {
|
||||
t.Errorf("UUIDv3 generated with incorrect version: %d", u.Version())
|
||||
}
|
||||
|
||||
if u.Variant() != VariantRFC4122 {
|
||||
t.Errorf("UUIDv3 generated with incorrect variant: %d", u.Variant())
|
||||
}
|
||||
|
||||
if u.String() != "5df41881-3aed-3515-88a7-2f4a814cf09e" {
|
||||
t.Errorf("UUIDv3 generated incorrectly: %s", u.String())
|
||||
}
|
||||
|
||||
u = NewV3(NamespaceDNS, "python.org")
|
||||
|
||||
if u.String() != "6fa459ea-ee8a-3ca4-894e-db77e160355e" {
|
||||
t.Errorf("UUIDv3 generated incorrectly: %s", u.String())
|
||||
}
|
||||
|
||||
u1 := NewV3(NamespaceDNS, "golang.org")
|
||||
u2 := NewV3(NamespaceDNS, "golang.org")
|
||||
if !Equal(u1, u2) {
|
||||
t.Errorf("UUIDv3 generated different UUIDs for same namespace and name: %s and %s", u1, u2)
|
||||
}
|
||||
|
||||
u3 := NewV3(NamespaceDNS, "example.com")
|
||||
if Equal(u1, u3) {
|
||||
t.Errorf("UUIDv3 generated same UUIDs for different names in same namespace: %s and %s", u1, u2)
|
||||
}
|
||||
|
||||
u4 := NewV3(NamespaceURL, "golang.org")
|
||||
if Equal(u1, u4) {
|
||||
t.Errorf("UUIDv3 generated same UUIDs for sane names in different namespaces: %s and %s", u1, u4)
|
||||
}
|
||||
}
|
||||
|
||||
func TestNewV4(t *testing.T) {
|
||||
u := NewV4()
|
||||
|
||||
if u.Version() != 4 {
|
||||
t.Errorf("UUIDv4 generated with incorrect version: %d", u.Version())
|
||||
}
|
||||
|
||||
if u.Variant() != VariantRFC4122 {
|
||||
t.Errorf("UUIDv4 generated with incorrect variant: %d", u.Variant())
|
||||
}
|
||||
}
|
||||
|
||||
func TestNewV5(t *testing.T) {
|
||||
u := NewV5(NamespaceDNS, "www.example.com")
|
||||
|
||||
if u.Version() != 5 {
|
||||
t.Errorf("UUIDv5 generated with incorrect version: %d", u.Version())
|
||||
}
|
||||
|
||||
if u.Variant() != VariantRFC4122 {
|
||||
t.Errorf("UUIDv5 generated with incorrect variant: %d", u.Variant())
|
||||
}
|
||||
|
||||
u = NewV5(NamespaceDNS, "python.org")
|
||||
|
||||
if u.String() != "886313e1-3b8a-5372-9b90-0c9aee199e5d" {
|
||||
t.Errorf("UUIDv5 generated incorrectly: %s", u.String())
|
||||
}
|
||||
|
||||
u1 := NewV5(NamespaceDNS, "golang.org")
|
||||
u2 := NewV5(NamespaceDNS, "golang.org")
|
||||
if !Equal(u1, u2) {
|
||||
t.Errorf("UUIDv5 generated different UUIDs for same namespace and name: %s and %s", u1, u2)
|
||||
}
|
||||
|
||||
u3 := NewV5(NamespaceDNS, "example.com")
|
||||
if Equal(u1, u3) {
|
||||
t.Errorf("UUIDv5 generated same UUIDs for different names in same namespace: %s and %s", u1, u2)
|
||||
}
|
||||
|
||||
u4 := NewV5(NamespaceURL, "golang.org")
|
||||
if Equal(u1, u4) {
|
||||
t.Errorf("UUIDv3 generated same UUIDs for sane names in different namespaces: %s and %s", u1, u4)
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue