Co-authored-by: Lauris BH <lauris@nix.lv> Co-authored-by: Lauris BH <lauris@nix.lv> Co-authored-by: zeripath <art27@cantab.net>tags/v1.12.0
@@ -49,6 +49,7 @@ require ( | |||
github.com/gogs/cron v0.0.0-20171120032916-9f6c956d3e14 | |||
github.com/golang/protobuf v1.4.1 // indirect | |||
github.com/google/go-github/v24 v24.0.1 | |||
github.com/google/uuid v1.1.1 | |||
github.com/gorilla/context v1.1.1 | |||
github.com/hashicorp/go-retryablehttp v0.6.6 // indirect | |||
github.com/huandu/xstrings v1.3.0 | |||
@@ -85,7 +86,6 @@ require ( | |||
github.com/prometheus/procfs v0.0.4 // indirect | |||
github.com/quasoft/websspi v1.0.0 | |||
github.com/remyoudompheng/bigfft v0.0.0-20190321074620-2f0d2b0e0001 // indirect | |||
github.com/satori/go.uuid v1.2.0 | |||
github.com/sergi/go-diff v1.1.0 | |||
github.com/shurcooL/httpfs v0.0.0-20190527155220-6a4d4a70508b // indirect | |||
github.com/shurcooL/vfsgen v0.0.0-20181202132449-6a9ea43bcacd |
@@ -558,8 +558,6 @@ github.com/remyoudompheng/bigfft v0.0.0-20190321074620-2f0d2b0e0001/go.mod h1:qq | |||
github.com/rogpeppe/fastuuid v0.0.0-20150106093220-6724a57986af/go.mod h1:XWv6SoW27p1b0cqNHllgS5HIMJraePCO15w5zCzIWYg= | |||
github.com/russross/blackfriday v1.5.2 h1:HyvC0ARfnZBqnXwABFeSZHpKvJHJJfPz81GNueLj0oo= | |||
github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g= | |||
github.com/satori/go.uuid v1.2.0 h1:0uYX9dsZ2yD7q2RtLRtPSdGDWzjeM3TbMJP9utgA0ww= | |||
github.com/satori/go.uuid v1.2.0/go.mod h1:dA0hQrYB0VpLJoorglMZABFdXlWrHn1NEOzdhQKdks0= | |||
github.com/sergi/go-diff v1.1.0 h1:we8PVUC3FE2uYfodKH/nBHMSetSfHDR6scGdBi+erh0= | |||
github.com/sergi/go-diff v1.1.0/go.mod h1:STckp+ISIX8hZLjrqAeVduY0gWCT9IjLuqbuNXdaHfM= | |||
github.com/shurcooL/httpfs v0.0.0-20190527155220-6a4d4a70508b h1:4kg1wyftSKxLtnPAvcRWakIPpokB9w780/KwrNLnfPA= |
@@ -14,7 +14,7 @@ import ( | |||
api "code.gitea.io/gitea/modules/structs" | |||
"code.gitea.io/gitea/modules/timeutil" | |||
gouuid "github.com/satori/go.uuid" | |||
gouuid "github.com/google/uuid" | |||
"xorm.io/xorm" | |||
) | |||
@@ -97,7 +97,7 @@ func (a *Attachment) LinkedRepository() (*Repository, UnitType, error) { | |||
// NewAttachment creates a new attachment object. | |||
func NewAttachment(attach *Attachment, buf []byte, file io.Reader) (_ *Attachment, err error) { | |||
attach.UUID = gouuid.NewV4().String() | |||
attach.UUID = gouuid.New().String() | |||
localPath := attach.LocalPath() | |||
if err = os.MkdirAll(path.Dir(localPath), os.ModePerm); err != nil { |
@@ -16,7 +16,7 @@ import ( | |||
"code.gitea.io/gitea/modules/timeutil" | |||
"github.com/dgrijalva/jwt-go" | |||
uuid "github.com/satori/go.uuid" | |||
uuid "github.com/google/uuid" | |||
"github.com/unknwon/com" | |||
"golang.org/x/crypto/bcrypt" | |||
"xorm.io/xorm" | |||
@@ -174,7 +174,7 @@ func CreateOAuth2Application(opts CreateOAuth2ApplicationOptions) (*OAuth2Applic | |||
} | |||
func createOAuth2Application(e Engine, opts CreateOAuth2ApplicationOptions) (*OAuth2Application, error) { | |||
clientID := uuid.NewV4().String() | |||
clientID := uuid.New().String() | |||
app := &OAuth2Application{ | |||
UID: opts.UserID, | |||
Name: opts.Name, |
@@ -13,7 +13,7 @@ import ( | |||
"code.gitea.io/gitea/modules/generate" | |||
"code.gitea.io/gitea/modules/timeutil" | |||
gouuid "github.com/satori/go.uuid" | |||
gouuid "github.com/google/uuid" | |||
) | |||
// AccessToken represents a personal access token. | |||
@@ -45,7 +45,7 @@ func NewAccessToken(t *AccessToken) error { | |||
return err | |||
} | |||
t.TokenSalt = salt | |||
t.Token = base.EncodeSha1(gouuid.NewV4().String()) | |||
t.Token = base.EncodeSha1(gouuid.New().String()) | |||
t.TokenHash = hashToken(t.Token, t.TokenSalt) | |||
t.TokenLastEight = t.Token[len(t.Token)-8:] | |||
_, err = x.Insert(t) |
@@ -14,7 +14,7 @@ import ( | |||
"code.gitea.io/gitea/modules/setting" | |||
gouuid "github.com/satori/go.uuid" | |||
gouuid "github.com/google/uuid" | |||
"github.com/unknwon/com" | |||
) | |||
@@ -46,7 +46,7 @@ func (upload *Upload) LocalPath() string { | |||
// NewUpload creates a new upload object. | |||
func NewUpload(name string, buf []byte, file multipart.File) (_ *Upload, err error) { | |||
upload := &Upload{ | |||
UUID: gouuid.NewV4().String(), | |||
UUID: gouuid.New().String(), | |||
Name: name, | |||
} | |||
@@ -15,7 +15,7 @@ import ( | |||
api "code.gitea.io/gitea/modules/structs" | |||
"code.gitea.io/gitea/modules/timeutil" | |||
gouuid "github.com/satori/go.uuid" | |||
gouuid "github.com/google/uuid" | |||
) | |||
// HookContentType is the content type of a web hook | |||
@@ -769,7 +769,7 @@ func createHookTask(e Engine, t *HookTask) error { | |||
if err != nil { | |||
return err | |||
} | |||
t.UUID = gouuid.NewV4().String() | |||
t.UUID = gouuid.New().String() | |||
t.PayloadContent = string(data) | |||
_, err = e.Insert(t) | |||
return err |
@@ -10,6 +10,7 @@ import ( | |||
"code.gitea.io/gitea/modules/log" | |||
"code.gitea.io/gitea/modules/setting" | |||
uuid "github.com/google/uuid" | |||
"github.com/lafriks/xormstore" | |||
"github.com/markbates/goth" | |||
"github.com/markbates/goth/gothic" | |||
@@ -25,7 +26,6 @@ import ( | |||
"github.com/markbates/goth/providers/openidConnect" | |||
"github.com/markbates/goth/providers/twitter" | |||
"github.com/markbates/goth/providers/yandex" | |||
uuid "github.com/satori/go.uuid" | |||
"xorm.io/xorm" | |||
) | |||
@@ -61,7 +61,7 @@ func Init(x *xorm.Engine) error { | |||
gothic.Store = store | |||
gothic.SetState = func(req *http.Request) string { | |||
return uuid.NewV4().String() | |||
return uuid.New().String() | |||
} | |||
gothic.GetProviderName = func(req *http.Request) (string, error) { |
@@ -14,7 +14,7 @@ import ( | |||
"gitea.com/macaron/macaron" | |||
"gitea.com/macaron/session" | |||
gouuid "github.com/satori/go.uuid" | |||
gouuid "github.com/google/uuid" | |||
) | |||
// Ensure the struct implements the interface. | |||
@@ -92,7 +92,7 @@ func (r *ReverseProxy) newUser(ctx *macaron.Context) *models.User { | |||
return nil | |||
} | |||
email := gouuid.NewV4().String() + "@localhost" | |||
email := gouuid.New().String() + "@localhost" | |||
if setting.Service.EnableReverseProxyEmail { | |||
webAuthEmail := ctx.Req.Header.Get(setting.ReverseProxyAuthEmail) | |||
if len(webAuthEmail) > 0 { |
@@ -17,8 +17,8 @@ import ( | |||
"gitea.com/macaron/macaron" | |||
"gitea.com/macaron/session" | |||
gouuid "github.com/google/uuid" | |||
"github.com/quasoft/websspi" | |||
gouuid "github.com/satori/go.uuid" | |||
) | |||
const ( | |||
@@ -157,12 +157,12 @@ func (s *SSPI) shouldAuthenticate(ctx *macaron.Context) (shouldAuth bool) { | |||
// newUser creates a new user object for the purpose of automatic registration | |||
// and populates its name and email with the information present in request headers. | |||
func (s *SSPI) newUser(ctx *macaron.Context, username string, cfg *models.SSPIConfig) (*models.User, error) { | |||
email := gouuid.NewV4().String() + "@localhost.localdomain" | |||
email := gouuid.New().String() + "@localhost.localdomain" | |||
user := &models.User{ | |||
Name: username, | |||
Email: email, | |||
KeepEmailPrivate: true, | |||
Passwd: gouuid.NewV4().String(), | |||
Passwd: gouuid.New().String(), | |||
IsActive: cfg.AutoActivateUsers, | |||
Language: cfg.DefaultLanguage, | |||
UseCustomAvatar: true, |
@@ -29,7 +29,7 @@ import ( | |||
"code.gitea.io/gitea/modules/structs" | |||
"code.gitea.io/gitea/modules/timeutil" | |||
gouuid "github.com/satori/go.uuid" | |||
gouuid "github.com/google/uuid" | |||
) | |||
var ( | |||
@@ -260,7 +260,7 @@ func (g *GiteaLocalUploader) CreateReleases(releases ...*base.Release) error { | |||
for _, asset := range release.Assets { | |||
var attach = models.Attachment{ | |||
UUID: gouuid.NewV4().String(), | |||
UUID: gouuid.New().String(), | |||
Name: asset.Name, | |||
DownloadCount: int64(*asset.DownloadCount), | |||
Size: int64(*asset.Size), |
@@ -0,0 +1,9 @@ | |||
language: go | |||
go: | |||
- 1.4.3 | |||
- 1.5.3 | |||
- tip | |||
script: | |||
- go test -v ./... |
@@ -0,0 +1,10 @@ | |||
# How to contribute | |||
We definitely welcome patches and contribution to this project! | |||
### Legal requirements | |||
In order to protect both you and ourselves, you will need to sign the | |||
[Contributor License Agreement](https://cla.developers.google.com/clas). | |||
You may have already signed it for other Google projects. |
@@ -0,0 +1,9 @@ | |||
Paul Borman <borman@google.com> | |||
bmatsuo | |||
shawnps | |||
theory | |||
jboverfelt | |||
dsymonds | |||
cd1 | |||
wallclockbuilder | |||
dansouza |
@@ -0,0 +1,27 @@ | |||
Copyright (c) 2009,2014 Google Inc. All rights reserved. | |||
Redistribution and use in source and binary forms, with or without | |||
modification, are permitted provided that the following conditions are | |||
met: | |||
* Redistributions of source code must retain the above copyright | |||
notice, this list of conditions and the following disclaimer. | |||
* Redistributions in binary form must reproduce the above | |||
copyright notice, this list of conditions and the following disclaimer | |||
in the documentation and/or other materials provided with the | |||
distribution. | |||
* Neither the name of Google Inc. nor the names of its | |||
contributors may be used to endorse or promote products derived from | |||
this software without specific prior written permission. | |||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |||
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |||
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |||
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |||
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |||
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
@@ -0,0 +1,19 @@ | |||
# uuid ![build status](https://travis-ci.org/google/uuid.svg?branch=master) | |||
The uuid package generates and inspects UUIDs based on | |||
[RFC 4122](http://tools.ietf.org/html/rfc4122) | |||
and DCE 1.1: Authentication and Security Services. | |||
This package is based on the github.com/pborman/uuid package (previously named | |||
code.google.com/p/go-uuid). It differs from these earlier packages in that | |||
a UUID is a 16 byte array rather than a byte slice. One loss due to this | |||
change is the ability to represent an invalid UUID (vs a NIL UUID). | |||
###### Install | |||
`go get github.com/google/uuid` | |||
###### Documentation | |||
[![GoDoc](https://godoc.org/github.com/google/uuid?status.svg)](http://godoc.org/github.com/google/uuid) | |||
Full `go doc` style documentation for the package can be viewed online without | |||
installing this package by using the GoDoc site here: | |||
http://godoc.org/github.com/google/uuid |
@@ -0,0 +1,80 @@ | |||
// Copyright 2016 Google Inc. All rights reserved. | |||
// Use of this source code is governed by a BSD-style | |||
// license that can be found in the LICENSE file. | |||
package uuid | |||
import ( | |||
"encoding/binary" | |||
"fmt" | |||
"os" | |||
) | |||
// A Domain represents a Version 2 domain | |||
type Domain byte | |||
// Domain constants for DCE Security (Version 2) UUIDs. | |||
const ( | |||
Person = Domain(0) | |||
Group = Domain(1) | |||
Org = Domain(2) | |||
) | |||
// NewDCESecurity returns a DCE Security (Version 2) UUID. | |||
// | |||
// The domain should be one of Person, Group or Org. | |||
// On a POSIX system the id should be the users UID for the Person | |||
// domain and the users GID for the Group. The meaning of id for | |||
// the domain Org or on non-POSIX systems is site defined. | |||
// | |||
// For a given domain/id pair the same token may be returned for up to | |||
// 7 minutes and 10 seconds. | |||
func NewDCESecurity(domain Domain, id uint32) (UUID, error) { | |||
uuid, err := NewUUID() | |||
if err == nil { | |||
uuid[6] = (uuid[6] & 0x0f) | 0x20 // Version 2 | |||
uuid[9] = byte(domain) | |||
binary.BigEndian.PutUint32(uuid[0:], id) | |||
} | |||
return uuid, err | |||
} | |||
// NewDCEPerson returns a DCE Security (Version 2) UUID in the person | |||
// domain with the id returned by os.Getuid. | |||
// | |||
// NewDCESecurity(Person, uint32(os.Getuid())) | |||
func NewDCEPerson() (UUID, error) { | |||
return NewDCESecurity(Person, uint32(os.Getuid())) | |||
} | |||
// NewDCEGroup returns a DCE Security (Version 2) UUID in the group | |||
// domain with the id returned by os.Getgid. | |||
// | |||
// NewDCESecurity(Group, uint32(os.Getgid())) | |||
func NewDCEGroup() (UUID, error) { | |||
return NewDCESecurity(Group, uint32(os.Getgid())) | |||
} | |||
// Domain returns the domain for a Version 2 UUID. Domains are only defined | |||
// for Version 2 UUIDs. | |||
func (uuid UUID) Domain() Domain { | |||
return Domain(uuid[9]) | |||
} | |||
// ID returns the id for a Version 2 UUID. IDs are only defined for Version 2 | |||
// UUIDs. | |||
func (uuid UUID) ID() uint32 { | |||
return binary.BigEndian.Uint32(uuid[0:4]) | |||
} | |||
func (d Domain) String() string { | |||
switch d { | |||
case Person: | |||
return "Person" | |||
case Group: | |||
return "Group" | |||
case Org: | |||
return "Org" | |||
} | |||
return fmt.Sprintf("Domain%d", int(d)) | |||
} |
@@ -0,0 +1,12 @@ | |||
// Copyright 2016 Google Inc. All rights reserved. | |||
// Use of this source code is governed by a BSD-style | |||
// license that can be found in the LICENSE file. | |||
// Package uuid generates and inspects UUIDs. | |||
// | |||
// UUIDs are based on RFC 4122 and DCE 1.1: Authentication and Security | |||
// Services. | |||
// | |||
// A UUID is a 16 byte (128 bit) array. UUIDs may be used as keys to | |||
// maps or compared directly. | |||
package uuid |
@@ -0,0 +1 @@ | |||
module github.com/google/uuid |
@@ -0,0 +1,53 @@ | |||
// Copyright 2016 Google Inc. All rights reserved. | |||
// Use of this source code is governed by a BSD-style | |||
// license that can be found in the LICENSE file. | |||
package uuid | |||
import ( | |||
"crypto/md5" | |||
"crypto/sha1" | |||
"hash" | |||
) | |||
// Well known namespace IDs and UUIDs | |||
var ( | |||
NameSpaceDNS = Must(Parse("6ba7b810-9dad-11d1-80b4-00c04fd430c8")) | |||
NameSpaceURL = Must(Parse("6ba7b811-9dad-11d1-80b4-00c04fd430c8")) | |||
NameSpaceOID = Must(Parse("6ba7b812-9dad-11d1-80b4-00c04fd430c8")) | |||
NameSpaceX500 = Must(Parse("6ba7b814-9dad-11d1-80b4-00c04fd430c8")) | |||
Nil UUID // empty UUID, all zeros | |||
) | |||
// NewHash returns a new UUID derived from the hash of space concatenated with | |||
// data generated by h. The hash should be at least 16 byte in length. The | |||
// first 16 bytes of the hash are used to form the UUID. The version of the | |||
// UUID will be the lower 4 bits of version. NewHash is used to implement | |||
// NewMD5 and NewSHA1. | |||
func NewHash(h hash.Hash, space UUID, data []byte, version int) UUID { | |||
h.Reset() | |||
h.Write(space[:]) | |||
h.Write(data) | |||
s := h.Sum(nil) | |||
var uuid UUID | |||
copy(uuid[:], s) | |||
uuid[6] = (uuid[6] & 0x0f) | uint8((version&0xf)<<4) | |||
uuid[8] = (uuid[8] & 0x3f) | 0x80 // RFC 4122 variant | |||
return uuid | |||
} | |||
// NewMD5 returns a new MD5 (Version 3) UUID based on the | |||
// supplied name space and data. It is the same as calling: | |||
// | |||
// NewHash(md5.New(), space, data, 3) | |||
func NewMD5(space UUID, data []byte) UUID { | |||
return NewHash(md5.New(), space, data, 3) | |||
} | |||
// NewSHA1 returns a new SHA1 (Version 5) UUID based on the | |||
// supplied name space and data. It is the same as calling: | |||
// | |||
// NewHash(sha1.New(), space, data, 5) | |||
func NewSHA1(space UUID, data []byte) UUID { | |||
return NewHash(sha1.New(), space, data, 5) | |||
} |
@@ -0,0 +1,37 @@ | |||
// Copyright 2016 Google Inc. All rights reserved. | |||
// Use of this source code is governed by a BSD-style | |||
// license that can be found in the LICENSE file. | |||
package uuid | |||
import "fmt" | |||
// MarshalText implements encoding.TextMarshaler. | |||
func (uuid UUID) MarshalText() ([]byte, error) { | |||
var js [36]byte | |||
encodeHex(js[:], uuid) | |||
return js[:], nil | |||
} | |||
// UnmarshalText implements encoding.TextUnmarshaler. | |||
func (uuid *UUID) UnmarshalText(data []byte) error { | |||
id, err := ParseBytes(data) | |||
if err == nil { | |||
*uuid = id | |||
} | |||
return err | |||
} | |||
// MarshalBinary implements encoding.BinaryMarshaler. | |||
func (uuid UUID) MarshalBinary() ([]byte, error) { | |||
return uuid[:], nil | |||
} | |||
// UnmarshalBinary implements encoding.BinaryUnmarshaler. | |||
func (uuid *UUID) UnmarshalBinary(data []byte) error { | |||
if len(data) != 16 { | |||
return fmt.Errorf("invalid UUID (got %d bytes)", len(data)) | |||
} | |||
copy(uuid[:], data) | |||
return nil | |||
} |
@@ -0,0 +1,90 @@ | |||
// Copyright 2016 Google Inc. All rights reserved. | |||
// Use of this source code is governed by a BSD-style | |||
// license that can be found in the LICENSE file. | |||
package uuid | |||
import ( | |||
"sync" | |||
) | |||
var ( | |||
nodeMu sync.Mutex | |||
ifname string // name of interface being used | |||
nodeID [6]byte // hardware for version 1 UUIDs | |||
zeroID [6]byte // nodeID with only 0's | |||
) | |||
// NodeInterface returns the name of the interface from which the NodeID was | |||
// derived. The interface "user" is returned if the NodeID was set by | |||
// SetNodeID. | |||
func NodeInterface() string { | |||
defer nodeMu.Unlock() | |||
nodeMu.Lock() | |||
return ifname | |||
} | |||
// SetNodeInterface selects the hardware address to be used for Version 1 UUIDs. | |||
// If name is "" then the first usable interface found will be used or a random | |||
// Node ID will be generated. If a named interface cannot be found then false | |||
// is returned. | |||
// | |||
// SetNodeInterface never fails when name is "". | |||
func SetNodeInterface(name string) bool { | |||
defer nodeMu.Unlock() | |||
nodeMu.Lock() | |||
return setNodeInterface(name) | |||
} | |||
func setNodeInterface(name string) bool { | |||
iname, addr := getHardwareInterface(name) // null implementation for js | |||
if iname != "" && addr != nil { | |||
ifname = iname | |||
copy(nodeID[:], addr) | |||
return true | |||
} | |||
// We found no interfaces with a valid hardware address. If name | |||
// does not specify a specific interface generate a random Node ID | |||
// (section 4.1.6) | |||
if name == "" { | |||
ifname = "random" | |||
randomBits(nodeID[:]) | |||
return true | |||
} | |||
return false | |||
} | |||
// NodeID returns a slice of a copy of the current Node ID, setting the Node ID | |||
// if not already set. | |||
func NodeID() []byte { | |||
defer nodeMu.Unlock() | |||
nodeMu.Lock() | |||
if nodeID == zeroID { | |||
setNodeInterface("") | |||
} | |||
nid := nodeID | |||
return nid[:] | |||
} | |||
// SetNodeID sets the Node ID to be used for Version 1 UUIDs. The first 6 bytes | |||
// of id are used. If id is less than 6 bytes then false is returned and the | |||
// Node ID is not set. | |||
func SetNodeID(id []byte) bool { | |||
if len(id) < 6 { | |||
return false | |||
} | |||
defer nodeMu.Unlock() | |||
nodeMu.Lock() | |||
copy(nodeID[:], id) | |||
ifname = "user" | |||
return true | |||
} | |||
// NodeID returns the 6 byte node id encoded in uuid. It returns nil if uuid is | |||
// not valid. The NodeID is only well defined for version 1 and 2 UUIDs. | |||
func (uuid UUID) NodeID() []byte { | |||
var node [6]byte | |||
copy(node[:], uuid[10:]) | |||
return node[:] | |||
} |
@@ -0,0 +1,12 @@ | |||
// Copyright 2017 Google Inc. All rights reserved. | |||
// Use of this source code is governed by a BSD-style | |||
// license that can be found in the LICENSE file. | |||
// +build js | |||
package uuid | |||
// getHardwareInterface returns nil values for the JS version of the code. | |||
// This remvoves the "net" dependency, because it is not used in the browser. | |||
// Using the "net" library inflates the size of the transpiled JS code by 673k bytes. | |||
func getHardwareInterface(name string) (string, []byte) { return "", nil } |
@@ -0,0 +1,33 @@ | |||
// Copyright 2017 Google Inc. All rights reserved. | |||
// Use of this source code is governed by a BSD-style | |||
// license that can be found in the LICENSE file. | |||
// +build !js | |||
package uuid | |||
import "net" | |||
var interfaces []net.Interface // cached list of interfaces | |||
// getHardwareInterface returns the name and hardware address of interface name. | |||
// If name is "" then the name and hardware address of one of the system's | |||
// interfaces is returned. If no interfaces are found (name does not exist or | |||
// there are no interfaces) then "", nil is returned. | |||
// | |||
// Only addresses of at least 6 bytes are returned. | |||
func getHardwareInterface(name string) (string, []byte) { | |||
if interfaces == nil { | |||
var err error | |||
interfaces, err = net.Interfaces() | |||
if err != nil { | |||
return "", nil | |||
} | |||
} | |||
for _, ifs := range interfaces { | |||
if len(ifs.HardwareAddr) >= 6 && (name == "" || name == ifs.Name) { | |||
return ifs.Name, ifs.HardwareAddr | |||
} | |||
} | |||
return "", nil | |||
} |
@@ -0,0 +1,59 @@ | |||
// Copyright 2016 Google Inc. All rights reserved. | |||
// Use of this source code is governed by a BSD-style | |||
// license that can be found in the LICENSE file. | |||
package uuid | |||
import ( | |||
"database/sql/driver" | |||
"fmt" | |||
) | |||
// Scan implements sql.Scanner so UUIDs can be read from databases transparently | |||
// Currently, database types that map to string and []byte are supported. Please | |||
// consult database-specific driver documentation for matching types. | |||
func (uuid *UUID) Scan(src interface{}) error { | |||
switch src := src.(type) { | |||
case nil: | |||
return nil | |||
case string: | |||
// if an empty UUID comes from a table, we return a null UUID | |||
if src == "" { | |||
return nil | |||
} | |||
// see Parse for required string format | |||
u, err := Parse(src) | |||
if err != nil { | |||
return fmt.Errorf("Scan: %v", err) | |||
} | |||
*uuid = u | |||
case []byte: | |||
// if an empty UUID comes from a table, we return a null UUID | |||
if len(src) == 0 { | |||
return nil | |||
} | |||
// assumes a simple slice of bytes if 16 bytes | |||
// otherwise attempts to parse | |||
if len(src) != 16 { | |||
return uuid.Scan(string(src)) | |||
} | |||
copy((*uuid)[:], src) | |||
default: | |||
return fmt.Errorf("Scan: unable to scan type %T into UUID", src) | |||
} | |||
return nil | |||
} | |||
// Value implements sql.Valuer so that UUIDs can be written to databases | |||
// transparently. Currently, UUIDs map to strings. Please consult | |||
// database-specific driver documentation for matching types. | |||
func (uuid UUID) Value() (driver.Value, error) { | |||
return uuid.String(), nil | |||
} |
@@ -0,0 +1,123 @@ | |||
// Copyright 2016 Google Inc. All rights reserved. | |||
// Use of this source code is governed by a BSD-style | |||
// license that can be found in the LICENSE file. | |||
package uuid | |||
import ( | |||
"encoding/binary" | |||
"sync" | |||
"time" | |||
) | |||
// A Time represents a time as the number of 100's of nanoseconds since 15 Oct | |||
// 1582. | |||
type Time int64 | |||
const ( | |||
lillian = 2299160 // Julian day of 15 Oct 1582 | |||
unix = 2440587 // Julian day of 1 Jan 1970 | |||
epoch = unix - lillian // Days between epochs | |||
g1582 = epoch * 86400 // seconds between epochs | |||
g1582ns100 = g1582 * 10000000 // 100s of a nanoseconds between epochs | |||
) | |||
var ( | |||
timeMu sync.Mutex | |||
lasttime uint64 // last time we returned | |||
clockSeq uint16 // clock sequence for this run | |||
timeNow = time.Now // for testing | |||
) | |||
// UnixTime converts t the number of seconds and nanoseconds using the Unix | |||
// epoch of 1 Jan 1970. | |||
func (t Time) UnixTime() (sec, nsec int64) { | |||
sec = int64(t - g1582ns100) | |||
nsec = (sec % 10000000) * 100 | |||
sec /= 10000000 | |||
return sec, nsec | |||
} | |||
// GetTime returns the current Time (100s of nanoseconds since 15 Oct 1582) and | |||
// clock sequence as well as adjusting the clock sequence as needed. An error | |||
// is returned if the current time cannot be determined. | |||
func GetTime() (Time, uint16, error) { | |||
defer timeMu.Unlock() | |||
timeMu.Lock() | |||
return getTime() | |||
} | |||
func getTime() (Time, uint16, error) { | |||
t := timeNow() | |||
// If we don't have a clock sequence already, set one. | |||
if clockSeq == 0 { | |||
setClockSequence(-1) | |||
} | |||
now := uint64(t.UnixNano()/100) + g1582ns100 | |||
// If time has gone backwards with this clock sequence then we | |||
// increment the clock sequence | |||
if now <= lasttime { | |||
clockSeq = ((clockSeq + 1) & 0x3fff) | 0x8000 | |||
} | |||
lasttime = now | |||
return Time(now), clockSeq, nil | |||
} | |||
// ClockSequence returns the current clock sequence, generating one if not | |||
// already set. The clock sequence is only used for Version 1 UUIDs. | |||
// | |||
// The uuid package does not use global static storage for the clock sequence or | |||
// the last time a UUID was generated. Unless SetClockSequence is used, a new | |||
// random clock sequence is generated the first time a clock sequence is | |||
// requested by ClockSequence, GetTime, or NewUUID. (section 4.2.1.1) | |||
func ClockSequence() int { | |||
defer timeMu.Unlock() | |||
timeMu.Lock() | |||
return clockSequence() | |||
} | |||
func clockSequence() int { | |||
if clockSeq == 0 { | |||
setClockSequence(-1) | |||
} | |||
return int(clockSeq & 0x3fff) | |||
} | |||
// SetClockSequence sets the clock sequence to the lower 14 bits of seq. Setting to | |||
// -1 causes a new sequence to be generated. | |||
func SetClockSequence(seq int) { | |||
defer timeMu.Unlock() | |||
timeMu.Lock() | |||
setClockSequence(seq) | |||
} | |||
func setClockSequence(seq int) { | |||
if seq == -1 { | |||
var b [2]byte | |||
randomBits(b[:]) // clock sequence | |||
seq = int(b[0])<<8 | int(b[1]) | |||
} | |||
oldSeq := clockSeq | |||
clockSeq = uint16(seq&0x3fff) | 0x8000 // Set our variant | |||
if oldSeq != clockSeq { | |||
lasttime = 0 | |||
} | |||
} | |||
// Time returns the time in 100s of nanoseconds since 15 Oct 1582 encoded in | |||
// uuid. The time is only defined for version 1 and 2 UUIDs. | |||
func (uuid UUID) Time() Time { | |||
time := int64(binary.BigEndian.Uint32(uuid[0:4])) | |||
time |= int64(binary.BigEndian.Uint16(uuid[4:6])) << 32 | |||
time |= int64(binary.BigEndian.Uint16(uuid[6:8])&0xfff) << 48 | |||
return Time(time) | |||
} | |||
// ClockSequence returns the clock sequence encoded in uuid. | |||
// The clock sequence is only well defined for version 1 and 2 UUIDs. | |||
func (uuid UUID) ClockSequence() int { | |||
return int(binary.BigEndian.Uint16(uuid[8:10])) & 0x3fff | |||
} |
@@ -0,0 +1,43 @@ | |||
// Copyright 2016 Google Inc. All rights reserved. | |||
// Use of this source code is governed by a BSD-style | |||
// license that can be found in the LICENSE file. | |||
package uuid | |||
import ( | |||
"io" | |||
) | |||
// randomBits completely fills slice b with random data. | |||
func randomBits(b []byte) { | |||
if _, err := io.ReadFull(rander, b); err != nil { | |||
panic(err.Error()) // rand should never fail | |||
} | |||
} | |||
// xvalues returns the value of a byte as a hexadecimal digit or 255. | |||
var xvalues = [256]byte{ | |||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, | |||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, | |||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, | |||
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 255, 255, 255, 255, 255, 255, | |||
255, 10, 11, 12, 13, 14, 15, 255, 255, 255, 255, 255, 255, 255, 255, 255, | |||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, | |||
255, 10, 11, 12, 13, 14, 15, 255, 255, 255, 255, 255, 255, 255, 255, 255, | |||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, | |||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, | |||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, | |||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, | |||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, | |||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, | |||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, | |||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, | |||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, | |||
} | |||
// xtob converts hex characters x1 and x2 into a byte. | |||
func xtob(x1, x2 byte) (byte, bool) { | |||
b1 := xvalues[x1] | |||
b2 := xvalues[x2] | |||
return (b1 << 4) | b2, b1 != 255 && b2 != 255 | |||
} |
@@ -0,0 +1,245 @@ | |||
// Copyright 2018 Google Inc. All rights reserved. | |||
// Use of this source code is governed by a BSD-style | |||
// license that can be found in the LICENSE file. | |||
package uuid | |||
import ( | |||
"bytes" | |||
"crypto/rand" | |||
"encoding/hex" | |||
"errors" | |||
"fmt" | |||
"io" | |||
"strings" | |||
) | |||
// A UUID is a 128 bit (16 byte) Universal Unique IDentifier as defined in RFC | |||
// 4122. | |||
type UUID [16]byte | |||
// A Version represents a UUID's version. | |||
type Version byte | |||
// A Variant represents a UUID's variant. | |||
type Variant byte | |||
// Constants returned by Variant. | |||
const ( | |||
Invalid = Variant(iota) // Invalid UUID | |||
RFC4122 // The variant specified in RFC4122 | |||
Reserved // Reserved, NCS backward compatibility. | |||
Microsoft // Reserved, Microsoft Corporation backward compatibility. | |||
Future // Reserved for future definition. | |||
) | |||
var rander = rand.Reader // random function | |||
// Parse decodes s into a UUID or returns an error. Both the standard UUID | |||
// forms of xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx and | |||
// urn:uuid:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx are decoded as well as the | |||
// Microsoft encoding {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx} and the raw hex | |||
// encoding: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx. | |||
func Parse(s string) (UUID, error) { | |||
var uuid UUID | |||
switch len(s) { | |||
// xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx | |||
case 36: | |||
// urn:uuid:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx | |||
case 36 + 9: | |||
if strings.ToLower(s[:9]) != "urn:uuid:" { | |||
return uuid, fmt.Errorf("invalid urn prefix: %q", s[:9]) | |||
} | |||
s = s[9:] | |||
// {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx} | |||
case 36 + 2: | |||
s = s[1:] | |||
// xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |||
case 32: | |||
var ok bool | |||
for i := range uuid { | |||
uuid[i], ok = xtob(s[i*2], s[i*2+1]) | |||
if !ok { | |||
return uuid, errors.New("invalid UUID format") | |||
} | |||
} | |||
return uuid, nil | |||
default: | |||
return uuid, fmt.Errorf("invalid UUID length: %d", len(s)) | |||
} | |||
// s is now at least 36 bytes long | |||
// it must be of the form xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx | |||
if s[8] != '-' || s[13] != '-' || s[18] != '-' || s[23] != '-' { | |||
return uuid, errors.New("invalid UUID format") | |||
} | |||
for i, x := range [16]int{ | |||
0, 2, 4, 6, | |||
9, 11, | |||
14, 16, | |||
19, 21, | |||
24, 26, 28, 30, 32, 34} { | |||
v, ok := xtob(s[x], s[x+1]) | |||
if !ok { | |||
return uuid, errors.New("invalid UUID format") | |||
} | |||
uuid[i] = v | |||
} | |||
return uuid, nil | |||
} | |||
// ParseBytes is like Parse, except it parses a byte slice instead of a string. | |||
func ParseBytes(b []byte) (UUID, error) { | |||
var uuid UUID | |||
switch len(b) { | |||
case 36: // xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx | |||
case 36 + 9: // urn:uuid:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx | |||
if !bytes.Equal(bytes.ToLower(b[:9]), []byte("urn:uuid:")) { | |||
return uuid, fmt.Errorf("invalid urn prefix: %q", b[:9]) | |||
} | |||
b = b[9:] | |||
case 36 + 2: // {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx} | |||
b = b[1:] | |||
case 32: // xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx | |||
var ok bool | |||
for i := 0; i < 32; i += 2 { | |||
uuid[i/2], ok = xtob(b[i], b[i+1]) | |||
if !ok { | |||
return uuid, errors.New("invalid UUID format") | |||
} | |||
} | |||
return uuid, nil | |||
default: | |||
return uuid, fmt.Errorf("invalid UUID length: %d", len(b)) | |||
} | |||
// s is now at least 36 bytes long | |||
// it must be of the form xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx | |||
if b[8] != '-' || b[13] != '-' || b[18] != '-' || b[23] != '-' { | |||
return uuid, errors.New("invalid UUID format") | |||
} | |||
for i, x := range [16]int{ | |||
0, 2, 4, 6, | |||
9, 11, | |||
14, 16, | |||
19, 21, | |||
24, 26, 28, 30, 32, 34} { | |||
v, ok := xtob(b[x], b[x+1]) | |||
if !ok { | |||
return uuid, errors.New("invalid UUID format") | |||
} | |||
uuid[i] = v | |||
} | |||
return uuid, nil | |||
} | |||
// MustParse is like Parse but panics if the string cannot be parsed. | |||
// It simplifies safe initialization of global variables holding compiled UUIDs. | |||
func MustParse(s string) UUID { | |||
uuid, err := Parse(s) | |||
if err != nil { | |||
panic(`uuid: Parse(` + s + `): ` + err.Error()) | |||
} | |||
return uuid | |||
} | |||
// FromBytes creates a new UUID from a byte slice. Returns an error if the slice | |||
// does not have a length of 16. The bytes are copied from the slice. | |||
func FromBytes(b []byte) (uuid UUID, err error) { | |||
err = uuid.UnmarshalBinary(b) | |||
return uuid, err | |||
} | |||
// Must returns uuid if err is nil and panics otherwise. | |||
func Must(uuid UUID, err error) UUID { | |||
if err != nil { | |||
panic(err) | |||
} | |||
return uuid | |||
} | |||
// String returns the string form of uuid, xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx | |||
// , or "" if uuid is invalid. | |||
func (uuid UUID) String() string { | |||
var buf [36]byte | |||
encodeHex(buf[:], uuid) | |||
return string(buf[:]) | |||
} | |||
// URN returns the RFC 2141 URN form of uuid, | |||
// urn:uuid:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx, or "" if uuid is invalid. | |||
func (uuid UUID) URN() string { | |||
var buf [36 + 9]byte | |||
copy(buf[:], "urn:uuid:") | |||
encodeHex(buf[9:], uuid) | |||
return string(buf[:]) | |||
} | |||
func encodeHex(dst []byte, uuid UUID) { | |||
hex.Encode(dst, uuid[:4]) | |||
dst[8] = '-' | |||
hex.Encode(dst[9:13], uuid[4:6]) | |||
dst[13] = '-' | |||
hex.Encode(dst[14:18], uuid[6:8]) | |||
dst[18] = '-' | |||
hex.Encode(dst[19:23], uuid[8:10]) | |||
dst[23] = '-' | |||
hex.Encode(dst[24:], uuid[10:]) | |||
} | |||
// Variant returns the variant encoded in uuid. | |||
func (uuid UUID) Variant() Variant { | |||
switch { | |||
case (uuid[8] & 0xc0) == 0x80: | |||
return RFC4122 | |||
case (uuid[8] & 0xe0) == 0xc0: | |||
return Microsoft | |||
case (uuid[8] & 0xe0) == 0xe0: | |||
return Future | |||
default: | |||
return Reserved | |||
} | |||
} | |||
// Version returns the version of uuid. | |||
func (uuid UUID) Version() Version { | |||
return Version(uuid[6] >> 4) | |||
} | |||
func (v Version) String() string { | |||
if v > 15 { | |||
return fmt.Sprintf("BAD_VERSION_%d", v) | |||
} | |||
return fmt.Sprintf("VERSION_%d", v) | |||
} | |||
func (v Variant) String() string { | |||
switch v { | |||
case RFC4122: | |||
return "RFC4122" | |||
case Reserved: | |||
return "Reserved" | |||
case Microsoft: | |||
return "Microsoft" | |||
case Future: | |||
return "Future" | |||
case Invalid: | |||
return "Invalid" | |||
} | |||
return fmt.Sprintf("BadVariant%d", int(v)) | |||
} | |||
// SetRand sets the random number generator to r, which implements io.Reader. | |||
// If r.Read returns an error when the package requests random data then | |||
// a panic will be issued. | |||
// | |||
// Calling SetRand with nil sets the random number generator to the default | |||
// generator. | |||
func SetRand(r io.Reader) { | |||
if r == nil { | |||
rander = rand.Reader | |||
return | |||
} | |||
rander = r | |||
} |
@@ -0,0 +1,44 @@ | |||
// Copyright 2016 Google Inc. All rights reserved. | |||
// Use of this source code is governed by a BSD-style | |||
// license that can be found in the LICENSE file. | |||
package uuid | |||
import ( | |||
"encoding/binary" | |||
) | |||
// NewUUID returns a Version 1 UUID based on the current NodeID and clock | |||
// sequence, and the current time. If the NodeID has not been set by SetNodeID | |||
// or SetNodeInterface then it will be set automatically. If the NodeID cannot | |||
// be set NewUUID returns nil. If clock sequence has not been set by | |||
// SetClockSequence then it will be set automatically. If GetTime fails to | |||
// return the current NewUUID returns nil and an error. | |||
// | |||
// In most cases, New should be used. | |||
func NewUUID() (UUID, error) { | |||
nodeMu.Lock() | |||
if nodeID == zeroID { | |||
setNodeInterface("") | |||
} | |||
nodeMu.Unlock() | |||
var uuid UUID | |||
now, seq, err := GetTime() | |||
if err != nil { | |||
return uuid, err | |||
} | |||
timeLow := uint32(now & 0xffffffff) | |||
timeMid := uint16((now >> 32) & 0xffff) | |||
timeHi := uint16((now >> 48) & 0x0fff) | |||
timeHi |= 0x1000 // Version 1 | |||
binary.BigEndian.PutUint32(uuid[0:], timeLow) | |||
binary.BigEndian.PutUint16(uuid[4:], timeMid) | |||
binary.BigEndian.PutUint16(uuid[6:], timeHi) | |||
binary.BigEndian.PutUint16(uuid[8:], seq) | |||
copy(uuid[10:], nodeID[:]) | |||
return uuid, nil | |||
} |
@@ -0,0 +1,38 @@ | |||
// Copyright 2016 Google Inc. All rights reserved. | |||
// Use of this source code is governed by a BSD-style | |||
// license that can be found in the LICENSE file. | |||
package uuid | |||
import "io" | |||
// New creates a new random UUID or panics. New is equivalent to | |||
// the expression | |||
// | |||
// uuid.Must(uuid.NewRandom()) | |||
func New() UUID { | |||
return Must(NewRandom()) | |||
} | |||
// NewRandom returns a Random (Version 4) UUID. | |||
// | |||
// The strength of the UUIDs is based on the strength of the crypto/rand | |||
// package. | |||
// | |||
// A note about uniqueness derived from the UUID Wikipedia entry: | |||
// | |||
// Randomly generated UUIDs have 122 random bits. One's annual risk of being | |||
// hit by a meteorite is estimated to be one chance in 17 billion, that | |||
// means the probability is about 0.00000000006 (6 × 10−11), | |||
// equivalent to the odds of creating a few tens of trillions of UUIDs in a | |||
// year and having one duplicate. | |||
func NewRandom() (UUID, error) { | |||
var uuid UUID | |||
_, err := io.ReadFull(rander, uuid[:]) | |||
if err != nil { | |||
return Nil, err | |||
} | |||
uuid[6] = (uuid[6] & 0x0f) | 0x40 // Version 4 | |||
uuid[8] = (uuid[8] & 0x3f) | 0x80 // Variant is 10 | |||
return uuid, nil | |||
} |
@@ -1,23 +0,0 @@ | |||
language: go | |||
sudo: false | |||
go: | |||
- 1.2 | |||
- 1.3 | |||
- 1.4 | |||
- 1.5 | |||
- 1.6 | |||
- 1.7 | |||
- 1.8 | |||
- 1.9 | |||
- tip | |||
matrix: | |||
allow_failures: | |||
- go: tip | |||
fast_finish: true | |||
before_install: | |||
- go get github.com/mattn/goveralls | |||
- go get golang.org/x/tools/cmd/cover | |||
script: | |||
- $HOME/gopath/bin/goveralls -service=travis-ci | |||
notifications: | |||
email: false |
@@ -1,20 +0,0 @@ | |||
Copyright (C) 2013-2018 by Maxim Bublis <b@codemonkey.ru> | |||
Permission is hereby granted, free of charge, to any person obtaining | |||
a copy of this software and associated documentation files (the | |||
"Software"), to deal in the Software without restriction, including | |||
without limitation the rights to use, copy, modify, merge, publish, | |||
distribute, sublicense, and/or sell copies of the Software, and to | |||
permit persons to whom the Software is furnished to do so, subject to | |||
the following conditions: | |||
The above copyright notice and this permission notice shall be | |||
included in all copies or substantial portions of the Software. | |||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |||
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |||
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |||
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE | |||
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION | |||
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION | |||
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
@@ -1,65 +0,0 @@ | |||
# UUID package for Go language | |||
[![Build Status](https://travis-ci.org/satori/go.uuid.png?branch=master)](https://travis-ci.org/satori/go.uuid) | |||
[![Coverage Status](https://coveralls.io/repos/github/satori/go.uuid/badge.svg?branch=master)](https://coveralls.io/github/satori/go.uuid) | |||
[![GoDoc](http://godoc.org/github.com/satori/go.uuid?status.png)](http://godoc.org/github.com/satori/go.uuid) | |||
This package provides pure Go implementation of Universally Unique Identifier (UUID). Supported both creation and parsing of UUIDs. | |||
With 100% test coverage and benchmarks out of box. | |||
Supported versions: | |||
* Version 1, based on timestamp and MAC address (RFC 4122) | |||
* Version 2, based on timestamp, MAC address and POSIX UID/GID (DCE 1.1) | |||
* Version 3, based on MD5 hashing (RFC 4122) | |||
* Version 4, based on random numbers (RFC 4122) | |||
* Version 5, based on SHA-1 hashing (RFC 4122) | |||
## Installation | |||
Use the `go` command: | |||
$ go get github.com/satori/go.uuid | |||
## Requirements | |||
UUID package requires Go >= 1.2. | |||
## Example | |||
```go | |||
package main | |||
import ( | |||
"fmt" | |||
"github.com/satori/go.uuid" | |||
) | |||
func main() { | |||
// Creating UUID Version 4 | |||
u1 := uuid.NewV4() | |||
fmt.Printf("UUIDv4: %s\n", u1) | |||
// Parsing UUID from string input | |||
u2, err := uuid.FromString("6ba7b810-9dad-11d1-80b4-00c04fd430c8") | |||
if err != nil { | |||
fmt.Printf("Something gone wrong: %s", err) | |||
} | |||
fmt.Printf("Successfully parsed: %s", u2) | |||
} | |||
``` | |||
## Documentation | |||
[Documentation](http://godoc.org/github.com/satori/go.uuid) is hosted at GoDoc project. | |||
## Links | |||
* [RFC 4122](http://tools.ietf.org/html/rfc4122) | |||
* [DCE 1.1: Authentication and Security Services](http://pubs.opengroup.org/onlinepubs/9696989899/chap5.htm#tagcjh_08_02_01_01) | |||
## Copyright | |||
Copyright (C) 2013-2018 by Maxim Bublis <b@codemonkey.ru>. | |||
UUID package released under MIT License. | |||
See [LICENSE](https://github.com/satori/go.uuid/blob/master/LICENSE) for details. |
@@ -1,206 +0,0 @@ | |||
// Copyright (C) 2013-2018 by Maxim Bublis <b@codemonkey.ru> | |||
// | |||
// Permission is hereby granted, free of charge, to any person obtaining | |||
// a copy of this software and associated documentation files (the | |||
// "Software"), to deal in the Software without restriction, including | |||
// without limitation the rights to use, copy, modify, merge, publish, | |||
// distribute, sublicense, and/or sell copies of the Software, and to | |||
// permit persons to whom the Software is furnished to do so, subject to | |||
// the following conditions: | |||
// | |||
// The above copyright notice and this permission notice shall be | |||
// included in all copies or substantial portions of the Software. | |||
// | |||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |||
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |||
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |||
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE | |||
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION | |||
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION | |||
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |||
package uuid | |||
import ( | |||
"bytes" | |||
"encoding/hex" | |||
"fmt" | |||
) | |||
// FromBytes returns UUID converted from raw byte slice input. | |||
// It will return error if the slice isn't 16 bytes long. | |||
func FromBytes(input []byte) (u UUID, err error) { | |||
err = u.UnmarshalBinary(input) | |||
return | |||
} | |||
// FromBytesOrNil returns UUID converted from raw byte slice input. | |||
// Same behavior as FromBytes, but returns a Nil UUID on error. | |||
func FromBytesOrNil(input []byte) UUID { | |||
uuid, err := FromBytes(input) | |||
if err != nil { | |||
return Nil | |||
} | |||
return uuid | |||
} | |||
// FromString returns UUID parsed from string input. | |||
// Input is expected in a form accepted by UnmarshalText. | |||
func FromString(input string) (u UUID, err error) { | |||
err = u.UnmarshalText([]byte(input)) | |||
return | |||
} | |||
// FromStringOrNil returns UUID parsed from string input. | |||
// Same behavior as FromString, but returns a Nil UUID on error. | |||
func FromStringOrNil(input string) UUID { | |||
uuid, err := FromString(input) | |||
if err != nil { | |||
return Nil | |||
} | |||
return uuid | |||
} | |||
// MarshalText implements the encoding.TextMarshaler interface. | |||
// The encoding is the same as returned by String. | |||
func (u UUID) MarshalText() (text []byte, err error) { | |||
text = []byte(u.String()) | |||
return | |||
} | |||
// UnmarshalText implements the encoding.TextUnmarshaler interface. | |||
// Following formats are supported: | |||
// "6ba7b810-9dad-11d1-80b4-00c04fd430c8", | |||
// "{6ba7b810-9dad-11d1-80b4-00c04fd430c8}", | |||
// "urn:uuid:6ba7b810-9dad-11d1-80b4-00c04fd430c8" | |||
// "6ba7b8109dad11d180b400c04fd430c8" | |||
// ABNF for supported UUID text representation follows: | |||
// uuid := canonical | hashlike | braced | urn | |||
// plain := canonical | hashlike | |||
// canonical := 4hexoct '-' 2hexoct '-' 2hexoct '-' 6hexoct | |||
// hashlike := 12hexoct | |||
// braced := '{' plain '}' | |||
// urn := URN ':' UUID-NID ':' plain | |||
// URN := 'urn' | |||
// UUID-NID := 'uuid' | |||
// 12hexoct := 6hexoct 6hexoct | |||
// 6hexoct := 4hexoct 2hexoct | |||
// 4hexoct := 2hexoct 2hexoct | |||
// 2hexoct := hexoct hexoct | |||
// hexoct := hexdig hexdig | |||
// hexdig := '0' | '1' | '2' | '3' | '4' | '5' | '6' | '7' | '8' | '9' | | |||
// 'a' | 'b' | 'c' | 'd' | 'e' | 'f' | | |||
// 'A' | 'B' | 'C' | 'D' | 'E' | 'F' | |||
func (u *UUID) UnmarshalText(text []byte) (err error) { | |||
switch len(text) { | |||
case 32: | |||
return u.decodeHashLike(text) | |||
case 36: | |||
return u.decodeCanonical(text) | |||
case 38: | |||
return u.decodeBraced(text) | |||
case 41: | |||
fallthrough | |||
case 45: | |||
return u.decodeURN(text) | |||
default: | |||
return fmt.Errorf("uuid: incorrect UUID length: %s", text) | |||
} | |||
} | |||
// decodeCanonical decodes UUID string in format | |||
// "6ba7b810-9dad-11d1-80b4-00c04fd430c8". | |||
func (u *UUID) decodeCanonical(t []byte) (err error) { | |||
if t[8] != '-' || t[13] != '-' || t[18] != '-' || t[23] != '-' { | |||
return fmt.Errorf("uuid: incorrect UUID format %s", t) | |||
} | |||
src := t[:] | |||
dst := u[:] | |||
for i, byteGroup := range byteGroups { | |||
if i > 0 { | |||
src = src[1:] // skip dash | |||
} | |||
_, err = hex.Decode(dst[:byteGroup/2], src[:byteGroup]) | |||
if err != nil { | |||
return | |||
} | |||
src = src[byteGroup:] | |||
dst = dst[byteGroup/2:] | |||
} | |||
return | |||
} | |||
// decodeHashLike decodes UUID string in format | |||
// "6ba7b8109dad11d180b400c04fd430c8". | |||
func (u *UUID) decodeHashLike(t []byte) (err error) { | |||
src := t[:] | |||
dst := u[:] | |||
if _, err = hex.Decode(dst, src); err != nil { | |||
return err | |||
} | |||
return | |||
} | |||
// decodeBraced decodes UUID string in format | |||
// "{6ba7b810-9dad-11d1-80b4-00c04fd430c8}" or in format | |||
// "{6ba7b8109dad11d180b400c04fd430c8}". | |||
func (u *UUID) decodeBraced(t []byte) (err error) { | |||
l := len(t) | |||
if t[0] != '{' || t[l-1] != '}' { | |||
return fmt.Errorf("uuid: incorrect UUID format %s", t) | |||
} | |||
return u.decodePlain(t[1 : l-1]) | |||
} | |||
// decodeURN decodes UUID string in format | |||
// "urn:uuid:6ba7b810-9dad-11d1-80b4-00c04fd430c8" or in format | |||
// "urn:uuid:6ba7b8109dad11d180b400c04fd430c8". | |||
func (u *UUID) decodeURN(t []byte) (err error) { | |||
total := len(t) | |||
urn_uuid_prefix := t[:9] | |||
if !bytes.Equal(urn_uuid_prefix, urnPrefix) { | |||
return fmt.Errorf("uuid: incorrect UUID format: %s", t) | |||
} | |||
return u.decodePlain(t[9:total]) | |||
} | |||
// decodePlain decodes UUID string in canonical format | |||
// "6ba7b810-9dad-11d1-80b4-00c04fd430c8" or in hash-like format | |||
// "6ba7b8109dad11d180b400c04fd430c8". | |||
func (u *UUID) decodePlain(t []byte) (err error) { | |||
switch len(t) { | |||
case 32: | |||
return u.decodeHashLike(t) | |||
case 36: | |||
return u.decodeCanonical(t) | |||
default: | |||
return fmt.Errorf("uuid: incorrrect UUID length: %s", t) | |||
} | |||
} | |||
// MarshalBinary implements the encoding.BinaryMarshaler interface. | |||
func (u UUID) MarshalBinary() (data []byte, err error) { | |||
data = u.Bytes() | |||
return | |||
} | |||
// UnmarshalBinary implements the encoding.BinaryUnmarshaler interface. | |||
// It will return error if the slice isn't 16 bytes long. | |||
func (u *UUID) UnmarshalBinary(data []byte) (err error) { | |||
if len(data) != Size { | |||
err = fmt.Errorf("uuid: UUID must be exactly 16 bytes long, got %d bytes", len(data)) | |||
return | |||
} | |||
copy(u[:], data) | |||
return | |||
} |
@@ -1,239 +0,0 @@ | |||
// Copyright (C) 2013-2018 by Maxim Bublis <b@codemonkey.ru> | |||
// | |||
// Permission is hereby granted, free of charge, to any person obtaining | |||
// a copy of this software and associated documentation files (the | |||
// "Software"), to deal in the Software without restriction, including | |||
// without limitation the rights to use, copy, modify, merge, publish, | |||
// distribute, sublicense, and/or sell copies of the Software, and to | |||
// permit persons to whom the Software is furnished to do so, subject to | |||
// the following conditions: | |||
// | |||
// The above copyright notice and this permission notice shall be | |||
// included in all copies or substantial portions of the Software. | |||
// | |||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |||
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |||
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |||
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE | |||
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION | |||
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION | |||
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |||
package uuid | |||
import ( | |||
"crypto/md5" | |||
"crypto/rand" | |||
"crypto/sha1" | |||
"encoding/binary" | |||
"hash" | |||
"net" | |||
"os" | |||
"sync" | |||
"time" | |||
) | |||
// Difference in 100-nanosecond intervals between | |||
// UUID epoch (October 15, 1582) and Unix epoch (January 1, 1970). | |||
const epochStart = 122192928000000000 | |||
var ( | |||
global = newDefaultGenerator() | |||
epochFunc = unixTimeFunc | |||
posixUID = uint32(os.Getuid()) | |||
posixGID = uint32(os.Getgid()) | |||
) | |||
// NewV1 returns UUID based on current timestamp and MAC address. | |||
func NewV1() UUID { | |||
return global.NewV1() | |||
} | |||
// NewV2 returns DCE Security UUID based on POSIX UID/GID. | |||
func NewV2(domain byte) UUID { | |||
return global.NewV2(domain) | |||
} | |||
// NewV3 returns UUID based on MD5 hash of namespace UUID and name. | |||
func NewV3(ns UUID, name string) UUID { | |||
return global.NewV3(ns, name) | |||
} | |||
// NewV4 returns random generated UUID. | |||
func NewV4() UUID { | |||
return global.NewV4() | |||
} | |||
// NewV5 returns UUID based on SHA-1 hash of namespace UUID and name. | |||
func NewV5(ns UUID, name string) UUID { | |||
return global.NewV5(ns, name) | |||
} | |||
// Generator provides interface for generating UUIDs. | |||
type Generator interface { | |||
NewV1() UUID | |||
NewV2(domain byte) UUID | |||
NewV3(ns UUID, name string) UUID | |||
NewV4() UUID | |||
NewV5(ns UUID, name string) UUID | |||
} | |||
// Default generator implementation. | |||
type generator struct { | |||
storageOnce sync.Once | |||
storageMutex sync.Mutex | |||
lastTime uint64 | |||
clockSequence uint16 | |||
hardwareAddr [6]byte | |||
} | |||
func newDefaultGenerator() Generator { | |||
return &generator{} | |||
} | |||
// NewV1 returns UUID based on current timestamp and MAC address. | |||
func (g *generator) NewV1() UUID { | |||
u := UUID{} | |||
timeNow, clockSeq, hardwareAddr := g.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(V1) | |||
u.SetVariant(VariantRFC4122) | |||
return u | |||
} | |||
// NewV2 returns DCE Security UUID based on POSIX UID/GID. | |||
func (g *generator) NewV2(domain byte) UUID { | |||
u := UUID{} | |||
timeNow, clockSeq, hardwareAddr := g.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(V2) | |||
u.SetVariant(VariantRFC4122) | |||
return u | |||
} | |||
// NewV3 returns UUID based on MD5 hash of namespace UUID and name. | |||
func (g *generator) NewV3(ns UUID, name string) UUID { | |||
u := newFromHash(md5.New(), ns, name) | |||
u.SetVersion(V3) | |||
u.SetVariant(VariantRFC4122) | |||
return u | |||
} | |||
// NewV4 returns random generated UUID. | |||
func (g *generator) NewV4() UUID { | |||
u := UUID{} | |||
g.safeRandom(u[:]) | |||
u.SetVersion(V4) | |||
u.SetVariant(VariantRFC4122) | |||
return u | |||
} | |||
// NewV5 returns UUID based on SHA-1 hash of namespace UUID and name. | |||
func (g *generator) NewV5(ns UUID, name string) UUID { | |||
u := newFromHash(sha1.New(), ns, name) | |||
u.SetVersion(V5) | |||
u.SetVariant(VariantRFC4122) | |||
return u | |||
} | |||
func (g *generator) initStorage() { | |||
g.initClockSequence() | |||
g.initHardwareAddr() | |||
} | |||
func (g *generator) initClockSequence() { | |||
buf := make([]byte, 2) | |||
g.safeRandom(buf) | |||
g.clockSequence = binary.BigEndian.Uint16(buf) | |||
} | |||
func (g *generator) initHardwareAddr() { | |||
interfaces, err := net.Interfaces() | |||
if err == nil { | |||
for _, iface := range interfaces { | |||
if len(iface.HardwareAddr) >= 6 { | |||
copy(g.hardwareAddr[:], iface.HardwareAddr) | |||
return | |||
} | |||
} | |||
} | |||
// Initialize hardwareAddr randomly in case | |||
// of real network interfaces absence | |||
g.safeRandom(g.hardwareAddr[:]) | |||
// Set multicast bit as recommended in RFC 4122 | |||
g.hardwareAddr[0] |= 0x01 | |||
} | |||
func (g *generator) safeRandom(dest []byte) { | |||
if _, err := rand.Read(dest); err != nil { | |||
panic(err) | |||
} | |||
} | |||
// Returns UUID v1/v2 storage state. | |||
// Returns epoch timestamp, clock sequence, and hardware address. | |||
func (g *generator) getStorage() (uint64, uint16, []byte) { | |||
g.storageOnce.Do(g.initStorage) | |||
g.storageMutex.Lock() | |||
defer g.storageMutex.Unlock() | |||
timeNow := epochFunc() | |||
// Clock changed backwards since last UUID generation. | |||
// Should increase clock sequence. | |||
if timeNow <= g.lastTime { | |||
g.clockSequence++ | |||
} | |||
g.lastTime = timeNow | |||
return timeNow, g.clockSequence, g.hardwareAddr[:] | |||
} | |||
// Returns difference in 100-nanosecond intervals between | |||
// UUID epoch (October 15, 1582) and current time. | |||
// This is default epoch calculation function. | |||
func unixTimeFunc() uint64 { | |||
return epochStart + uint64(time.Now().UnixNano()/100) | |||
} | |||
// 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 | |||
} |
@@ -1,78 +0,0 @@ | |||
// Copyright (C) 2013-2018 by Maxim Bublis <b@codemonkey.ru> | |||
// | |||
// Permission is hereby granted, free of charge, to any person obtaining | |||
// a copy of this software and associated documentation files (the | |||
// "Software"), to deal in the Software without restriction, including | |||
// without limitation the rights to use, copy, modify, merge, publish, | |||
// distribute, sublicense, and/or sell copies of the Software, and to | |||
// permit persons to whom the Software is furnished to do so, subject to | |||
// the following conditions: | |||
// | |||
// The above copyright notice and this permission notice shall be | |||
// included in all copies or substantial portions of the Software. | |||
// | |||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |||
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |||
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |||
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE | |||
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION | |||
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION | |||
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |||
package uuid | |||
import ( | |||
"database/sql/driver" | |||
"fmt" | |||
) | |||
// Value implements the driver.Valuer interface. | |||
func (u UUID) Value() (driver.Value, error) { | |||
return u.String(), nil | |||
} | |||
// Scan implements the sql.Scanner interface. | |||
// A 16-byte slice is handled by UnmarshalBinary, while | |||
// a longer byte slice or a string is handled by UnmarshalText. | |||
func (u *UUID) Scan(src interface{}) error { | |||
switch src := src.(type) { | |||
case []byte: | |||
if len(src) == Size { | |||
return u.UnmarshalBinary(src) | |||
} | |||
return u.UnmarshalText(src) | |||
case string: | |||
return u.UnmarshalText([]byte(src)) | |||
} | |||
return fmt.Errorf("uuid: cannot convert %T to UUID", src) | |||
} | |||
// NullUUID can be used with the standard sql package to represent a | |||
// UUID value that can be NULL in the database | |||
type NullUUID struct { | |||
UUID UUID | |||
Valid bool | |||
} | |||
// Value implements the driver.Valuer interface. | |||
func (u NullUUID) Value() (driver.Value, error) { | |||
if !u.Valid { | |||
return nil, nil | |||
} | |||
// Delegate to UUID Value function | |||
return u.UUID.Value() | |||
} | |||
// Scan implements the sql.Scanner interface. | |||
func (u *NullUUID) Scan(src interface{}) error { | |||
if src == nil { | |||
u.UUID, u.Valid = Nil, false | |||
return nil | |||
} | |||
// Delegate to UUID Scan function | |||
u.Valid = true | |||
return u.UUID.Scan(src) | |||
} |
@@ -1,161 +0,0 @@ | |||
// Copyright (C) 2013-2018 by Maxim Bublis <b@codemonkey.ru> | |||
// | |||
// Permission is hereby granted, free of charge, to any person obtaining | |||
// a copy of this software and associated documentation files (the | |||
// "Software"), to deal in the Software without restriction, including | |||
// without limitation the rights to use, copy, modify, merge, publish, | |||
// distribute, sublicense, and/or sell copies of the Software, and to | |||
// permit persons to whom the Software is furnished to do so, subject to | |||
// the following conditions: | |||
// | |||
// The above copyright notice and this permission notice shall be | |||
// included in all copies or substantial portions of the Software. | |||
// | |||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |||
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |||
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |||
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE | |||
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION | |||
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION | |||
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |||
// Package uuid provides implementation of Universally Unique Identifier (UUID). | |||
// Supported versions are 1, 3, 4 and 5 (as specified in RFC 4122) and | |||
// version 2 (as specified in DCE 1.1). | |||
package uuid | |||
import ( | |||
"bytes" | |||
"encoding/hex" | |||
) | |||
// Size of a UUID in bytes. | |||
const Size = 16 | |||
// UUID representation compliant with specification | |||
// described in RFC 4122. | |||
type UUID [Size]byte | |||
// UUID versions | |||
const ( | |||
_ byte = iota | |||
V1 | |||
V2 | |||
V3 | |||
V4 | |||
V5 | |||
) | |||
// UUID layout variants. | |||
const ( | |||
VariantNCS byte = iota | |||
VariantRFC4122 | |||
VariantMicrosoft | |||
VariantFuture | |||
) | |||
// UUID DCE domains. | |||
const ( | |||
DomainPerson = iota | |||
DomainGroup | |||
DomainOrg | |||
) | |||
// String parse helpers. | |||
var ( | |||
urnPrefix = []byte("urn:uuid:") | |||
byteGroups = []int{8, 4, 4, 4, 12} | |||
) | |||
// Nil is special form of UUID that is specified to have all | |||
// 128 bits set to zero. | |||
var Nil = UUID{} | |||
// Predefined namespace UUIDs. | |||
var ( | |||
NamespaceDNS = Must(FromString("6ba7b810-9dad-11d1-80b4-00c04fd430c8")) | |||
NamespaceURL = Must(FromString("6ba7b811-9dad-11d1-80b4-00c04fd430c8")) | |||
NamespaceOID = Must(FromString("6ba7b812-9dad-11d1-80b4-00c04fd430c8")) | |||
NamespaceX500 = Must(FromString("6ba7b814-9dad-11d1-80b4-00c04fd430c8")) | |||
) | |||
// Equal returns true if u1 and u2 equals, otherwise returns false. | |||
func Equal(u1 UUID, u2 UUID) bool { | |||
return bytes.Equal(u1[:], u2[:]) | |||
} | |||
// Version returns algorithm version used to generate UUID. | |||
func (u UUID) Version() byte { | |||
return u[6] >> 4 | |||
} | |||
// Variant returns UUID layout variant. | |||
func (u UUID) Variant() byte { | |||
switch { | |||
case (u[8] >> 7) == 0x00: | |||
return VariantNCS | |||
case (u[8] >> 6) == 0x02: | |||
return VariantRFC4122 | |||
case (u[8] >> 5) == 0x06: | |||
return VariantMicrosoft | |||
case (u[8] >> 5) == 0x07: | |||
fallthrough | |||
default: | |||
return VariantFuture | |||
} | |||
} | |||
// Bytes returns bytes slice representation of UUID. | |||
func (u UUID) Bytes() []byte { | |||
return u[:] | |||
} | |||
// Returns canonical string representation of UUID: | |||
// xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx. | |||
func (u UUID) String() string { | |||
buf := make([]byte, 36) | |||
hex.Encode(buf[0:8], u[0:4]) | |||
buf[8] = '-' | |||
hex.Encode(buf[9:13], u[4:6]) | |||
buf[13] = '-' | |||
hex.Encode(buf[14:18], u[6:8]) | |||
buf[18] = '-' | |||
hex.Encode(buf[19:23], u[8:10]) | |||
buf[23] = '-' | |||
hex.Encode(buf[24:], u[10:]) | |||
return string(buf) | |||
} | |||
// SetVersion sets version bits. | |||
func (u *UUID) SetVersion(v byte) { | |||
u[6] = (u[6] & 0x0f) | (v << 4) | |||
} | |||
// SetVariant sets variant bits. | |||
func (u *UUID) SetVariant(v byte) { | |||
switch v { | |||
case VariantNCS: | |||
u[8] = (u[8]&(0xff>>1) | (0x00 << 7)) | |||
case VariantRFC4122: | |||
u[8] = (u[8]&(0xff>>2) | (0x02 << 6)) | |||
case VariantMicrosoft: | |||
u[8] = (u[8]&(0xff>>3) | (0x06 << 5)) | |||
case VariantFuture: | |||
fallthrough | |||
default: | |||
u[8] = (u[8]&(0xff>>3) | (0x07 << 5)) | |||
} | |||
} | |||
// 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 | |||
// var packageUUID = uuid.Must(uuid.FromString("123e4567-e89b-12d3-a456-426655440000")); | |||
func Must(u UUID, err error) UUID { | |||
if err != nil { | |||
panic(err) | |||
} | |||
return u | |||
} |
@@ -353,6 +353,9 @@ github.com/golang/snappy | |||
github.com/google/go-github/v24/github | |||
# github.com/google/go-querystring v1.0.0 | |||
github.com/google/go-querystring/query | |||
# github.com/google/uuid v1.1.1 | |||
## explicit | |||
github.com/google/uuid | |||
# github.com/gorilla/context v1.1.1 | |||
## explicit | |||
github.com/gorilla/context | |||
@@ -568,9 +571,6 @@ github.com/quasoft/websspi | |||
github.com/quasoft/websspi/secctx | |||
# github.com/remyoudompheng/bigfft v0.0.0-20190321074620-2f0d2b0e0001 | |||
## explicit | |||
# github.com/satori/go.uuid v1.2.0 | |||
## explicit | |||
github.com/satori/go.uuid | |||
# github.com/sergi/go-diff v1.1.0 | |||
## explicit | |||
github.com/sergi/go-diff/diffmatchpatch |