mirror of https://github.com/go-gitea/gitea.git
Use google/uuid to instead satori/go.uuid (#11943)
Co-authored-by: Lauris BH <lauris@nix.lv>
This commit is contained in:
Lunny Xiao
GitHub
parent
03ba974481
commit
1dd3f19ee3
2
go.mod
2
go.mod
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@ -50,6 +50,7 @@ require (
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github.com/gogs/cron v0.0.0-20171120032916-9f6c956d3e14
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github.com/gogs/cron v0.0.0-20171120032916-9f6c956d3e14
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github.com/golang/protobuf v1.4.1 // indirect
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github.com/golang/protobuf v1.4.1 // indirect
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github.com/google/go-github/v24 v24.0.1
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github.com/google/go-github/v24 v24.0.1
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github.com/google/uuid v1.1.1
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github.com/gorilla/context v1.1.1
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github.com/gorilla/context v1.1.1
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github.com/hashicorp/go-retryablehttp v0.6.6 // indirect
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github.com/hashicorp/go-retryablehttp v0.6.6 // indirect
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github.com/huandu/xstrings v1.3.0
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github.com/huandu/xstrings v1.3.0
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@ -85,7 +86,6 @@ require (
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github.com/prometheus/procfs v0.0.4 // indirect
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github.com/prometheus/procfs v0.0.4 // indirect
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github.com/quasoft/websspi v1.0.0
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github.com/quasoft/websspi v1.0.0
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github.com/remyoudompheng/bigfft v0.0.0-20190321074620-2f0d2b0e0001 // indirect
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github.com/remyoudompheng/bigfft v0.0.0-20190321074620-2f0d2b0e0001 // indirect
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github.com/satori/go.uuid v1.2.0
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github.com/sergi/go-diff v1.1.0
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github.com/sergi/go-diff v1.1.0
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github.com/shurcooL/httpfs v0.0.0-20190527155220-6a4d4a70508b // indirect
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github.com/shurcooL/httpfs v0.0.0-20190527155220-6a4d4a70508b // indirect
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github.com/shurcooL/vfsgen v0.0.0-20181202132449-6a9ea43bcacd
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github.com/shurcooL/vfsgen v0.0.0-20181202132449-6a9ea43bcacd
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2
go.sum
2
go.sum
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@ -580,8 +580,6 @@ github.com/remyoudompheng/bigfft v0.0.0-20190321074620-2f0d2b0e0001/go.mod h1:qq
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github.com/rogpeppe/fastuuid v0.0.0-20150106093220-6724a57986af/go.mod h1:XWv6SoW27p1b0cqNHllgS5HIMJraePCO15w5zCzIWYg=
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github.com/rogpeppe/fastuuid v0.0.0-20150106093220-6724a57986af/go.mod h1:XWv6SoW27p1b0cqNHllgS5HIMJraePCO15w5zCzIWYg=
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github.com/russross/blackfriday v1.5.2 h1:HyvC0ARfnZBqnXwABFeSZHpKvJHJJfPz81GNueLj0oo=
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github.com/russross/blackfriday v1.5.2 h1:HyvC0ARfnZBqnXwABFeSZHpKvJHJJfPz81GNueLj0oo=
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github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
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github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
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github.com/satori/go.uuid v1.2.0 h1:0uYX9dsZ2yD7q2RtLRtPSdGDWzjeM3TbMJP9utgA0ww=
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github.com/satori/go.uuid v1.2.0/go.mod h1:dA0hQrYB0VpLJoorglMZABFdXlWrHn1NEOzdhQKdks0=
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github.com/sergi/go-diff v1.1.0 h1:we8PVUC3FE2uYfodKH/nBHMSetSfHDR6scGdBi+erh0=
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github.com/sergi/go-diff v1.1.0 h1:we8PVUC3FE2uYfodKH/nBHMSetSfHDR6scGdBi+erh0=
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github.com/sergi/go-diff v1.1.0/go.mod h1:STckp+ISIX8hZLjrqAeVduY0gWCT9IjLuqbuNXdaHfM=
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github.com/sergi/go-diff v1.1.0/go.mod h1:STckp+ISIX8hZLjrqAeVduY0gWCT9IjLuqbuNXdaHfM=
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github.com/shurcooL/httpfs v0.0.0-20190527155220-6a4d4a70508b h1:4kg1wyftSKxLtnPAvcRWakIPpokB9w780/KwrNLnfPA=
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github.com/shurcooL/httpfs v0.0.0-20190527155220-6a4d4a70508b h1:4kg1wyftSKxLtnPAvcRWakIPpokB9w780/KwrNLnfPA=
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@ -14,7 +14,7 @@ import (
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api "code.gitea.io/gitea/modules/structs"
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api "code.gitea.io/gitea/modules/structs"
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"code.gitea.io/gitea/modules/timeutil"
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"code.gitea.io/gitea/modules/timeutil"
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gouuid "github.com/satori/go.uuid"
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gouuid "github.com/google/uuid"
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"xorm.io/xorm"
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"xorm.io/xorm"
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)
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)
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@ -97,7 +97,7 @@ func (a *Attachment) LinkedRepository() (*Repository, UnitType, error) {
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// NewAttachment creates a new attachment object.
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// NewAttachment creates a new attachment object.
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func NewAttachment(attach *Attachment, buf []byte, file io.Reader) (_ *Attachment, err error) {
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func NewAttachment(attach *Attachment, buf []byte, file io.Reader) (_ *Attachment, err error) {
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attach.UUID = gouuid.NewV4().String()
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attach.UUID = gouuid.New().String()
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localPath := attach.LocalPath()
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localPath := attach.LocalPath()
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if err = os.MkdirAll(path.Dir(localPath), os.ModePerm); err != nil {
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if err = os.MkdirAll(path.Dir(localPath), os.ModePerm); err != nil {
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@ -16,7 +16,7 @@ import (
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"code.gitea.io/gitea/modules/timeutil"
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"code.gitea.io/gitea/modules/timeutil"
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"github.com/dgrijalva/jwt-go"
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"github.com/dgrijalva/jwt-go"
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uuid "github.com/satori/go.uuid"
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uuid "github.com/google/uuid"
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"github.com/unknwon/com"
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"github.com/unknwon/com"
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"golang.org/x/crypto/bcrypt"
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"golang.org/x/crypto/bcrypt"
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"xorm.io/xorm"
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"xorm.io/xorm"
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@ -174,7 +174,7 @@ func CreateOAuth2Application(opts CreateOAuth2ApplicationOptions) (*OAuth2Applic
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}
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}
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func createOAuth2Application(e Engine, opts CreateOAuth2ApplicationOptions) (*OAuth2Application, error) {
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func createOAuth2Application(e Engine, opts CreateOAuth2ApplicationOptions) (*OAuth2Application, error) {
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clientID := uuid.NewV4().String()
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clientID := uuid.New().String()
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app := &OAuth2Application{
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app := &OAuth2Application{
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UID: opts.UserID,
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UID: opts.UserID,
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Name: opts.Name,
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Name: opts.Name,
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@ -13,7 +13,7 @@ import (
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"code.gitea.io/gitea/modules/generate"
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"code.gitea.io/gitea/modules/generate"
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"code.gitea.io/gitea/modules/timeutil"
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"code.gitea.io/gitea/modules/timeutil"
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gouuid "github.com/satori/go.uuid"
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gouuid "github.com/google/uuid"
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)
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)
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// AccessToken represents a personal access token.
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// AccessToken represents a personal access token.
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@ -45,7 +45,7 @@ func NewAccessToken(t *AccessToken) error {
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return err
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return err
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}
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}
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t.TokenSalt = salt
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t.TokenSalt = salt
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t.Token = base.EncodeSha1(gouuid.NewV4().String())
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t.Token = base.EncodeSha1(gouuid.New().String())
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t.TokenHash = hashToken(t.Token, t.TokenSalt)
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t.TokenHash = hashToken(t.Token, t.TokenSalt)
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t.TokenLastEight = t.Token[len(t.Token)-8:]
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t.TokenLastEight = t.Token[len(t.Token)-8:]
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_, err = x.Insert(t)
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_, err = x.Insert(t)
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@ -14,7 +14,7 @@ import (
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/setting"
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gouuid "github.com/satori/go.uuid"
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gouuid "github.com/google/uuid"
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"github.com/unknwon/com"
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"github.com/unknwon/com"
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)
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)
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@ -46,7 +46,7 @@ func (upload *Upload) LocalPath() string {
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// NewUpload creates a new upload object.
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// NewUpload creates a new upload object.
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func NewUpload(name string, buf []byte, file multipart.File) (_ *Upload, err error) {
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func NewUpload(name string, buf []byte, file multipart.File) (_ *Upload, err error) {
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upload := &Upload{
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upload := &Upload{
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UUID: gouuid.NewV4().String(),
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UUID: gouuid.New().String(),
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Name: name,
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Name: name,
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}
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}
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@ -15,7 +15,7 @@ import (
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api "code.gitea.io/gitea/modules/structs"
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api "code.gitea.io/gitea/modules/structs"
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"code.gitea.io/gitea/modules/timeutil"
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"code.gitea.io/gitea/modules/timeutil"
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gouuid "github.com/satori/go.uuid"
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gouuid "github.com/google/uuid"
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)
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)
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// HookContentType is the content type of a web hook
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// HookContentType is the content type of a web hook
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@ -769,7 +769,7 @@ func createHookTask(e Engine, t *HookTask) error {
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if err != nil {
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if err != nil {
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return err
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return err
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}
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}
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t.UUID = gouuid.NewV4().String()
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t.UUID = gouuid.New().String()
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t.PayloadContent = string(data)
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t.PayloadContent = string(data)
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_, err = e.Insert(t)
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_, err = e.Insert(t)
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return err
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return err
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@ -10,6 +10,7 @@ import (
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/setting"
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uuid "github.com/google/uuid"
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"github.com/lafriks/xormstore"
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"github.com/lafriks/xormstore"
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"github.com/markbates/goth"
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"github.com/markbates/goth"
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"github.com/markbates/goth/gothic"
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"github.com/markbates/goth/gothic"
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@ -25,7 +26,6 @@ import (
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"github.com/markbates/goth/providers/openidConnect"
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"github.com/markbates/goth/providers/openidConnect"
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"github.com/markbates/goth/providers/twitter"
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"github.com/markbates/goth/providers/twitter"
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"github.com/markbates/goth/providers/yandex"
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"github.com/markbates/goth/providers/yandex"
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uuid "github.com/satori/go.uuid"
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"xorm.io/xorm"
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"xorm.io/xorm"
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)
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)
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@ -61,7 +61,7 @@ func Init(x *xorm.Engine) error {
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gothic.Store = store
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gothic.Store = store
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gothic.SetState = func(req *http.Request) string {
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gothic.SetState = func(req *http.Request) string {
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return uuid.NewV4().String()
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return uuid.New().String()
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}
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}
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gothic.GetProviderName = func(req *http.Request) (string, error) {
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gothic.GetProviderName = func(req *http.Request) (string, error) {
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@ -14,7 +14,7 @@ import (
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|
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"gitea.com/macaron/macaron"
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"gitea.com/macaron/macaron"
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"gitea.com/macaron/session"
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"gitea.com/macaron/session"
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gouuid "github.com/satori/go.uuid"
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gouuid "github.com/google/uuid"
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)
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)
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|
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// Ensure the struct implements the interface.
|
// Ensure the struct implements the interface.
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|
|
@ -92,7 +92,7 @@ func (r *ReverseProxy) newUser(ctx *macaron.Context) *models.User {
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return nil
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return nil
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}
|
}
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|
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email := gouuid.NewV4().String() + "@localhost"
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email := gouuid.New().String() + "@localhost"
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if setting.Service.EnableReverseProxyEmail {
|
if setting.Service.EnableReverseProxyEmail {
|
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webAuthEmail := ctx.Req.Header.Get(setting.ReverseProxyAuthEmail)
|
webAuthEmail := ctx.Req.Header.Get(setting.ReverseProxyAuthEmail)
|
||||||
if len(webAuthEmail) > 0 {
|
if len(webAuthEmail) > 0 {
|
||||||
|
|
|
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|
|
@ -17,8 +17,8 @@ import (
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"gitea.com/macaron/macaron"
|
"gitea.com/macaron/macaron"
|
||||||
"gitea.com/macaron/session"
|
"gitea.com/macaron/session"
|
||||||
|
|
||||||
|
gouuid "github.com/google/uuid"
|
||||||
"github.com/quasoft/websspi"
|
"github.com/quasoft/websspi"
|
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gouuid "github.com/satori/go.uuid"
|
|
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)
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)
|
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|
|
||||||
const (
|
const (
|
||||||
|
|
@ -157,12 +157,12 @@ func (s *SSPI) shouldAuthenticate(ctx *macaron.Context) (shouldAuth bool) {
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// newUser creates a new user object for the purpose of automatic registration
|
// newUser creates a new user object for the purpose of automatic registration
|
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// and populates its name and email with the information present in request headers.
|
// 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) {
|
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{
|
user := &models.User{
|
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Name: username,
|
Name: username,
|
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Email: email,
|
Email: email,
|
||||||
KeepEmailPrivate: true,
|
KeepEmailPrivate: true,
|
||||||
Passwd: gouuid.NewV4().String(),
|
Passwd: gouuid.New().String(),
|
||||||
IsActive: cfg.AutoActivateUsers,
|
IsActive: cfg.AutoActivateUsers,
|
||||||
Language: cfg.DefaultLanguage,
|
Language: cfg.DefaultLanguage,
|
||||||
UseCustomAvatar: true,
|
UseCustomAvatar: true,
|
||||||
|
|
|
||||||
|
|
@ -29,7 +29,7 @@ import (
|
||||||
"code.gitea.io/gitea/modules/structs"
|
"code.gitea.io/gitea/modules/structs"
|
||||||
"code.gitea.io/gitea/modules/timeutil"
|
"code.gitea.io/gitea/modules/timeutil"
|
||||||
|
|
||||||
gouuid "github.com/satori/go.uuid"
|
gouuid "github.com/google/uuid"
|
||||||
)
|
)
|
||||||
|
|
||||||
var (
|
var (
|
||||||
|
|
@ -260,7 +260,7 @@ func (g *GiteaLocalUploader) CreateReleases(releases ...*base.Release) error {
|
||||||
|
|
||||||
for _, asset := range release.Assets {
|
for _, asset := range release.Assets {
|
||||||
var attach = models.Attachment{
|
var attach = models.Attachment{
|
||||||
UUID: gouuid.NewV4().String(),
|
UUID: gouuid.New().String(),
|
||||||
Name: asset.Name,
|
Name: asset.Name,
|
||||||
DownloadCount: int64(*asset.DownloadCount),
|
DownloadCount: int64(*asset.DownloadCount),
|
||||||
Size: int64(*asset.Size),
|
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 
|
||||||
|
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
|
||||||
|
[](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
|
|
||||||
|
|
||||||
[](https://travis-ci.org/satori/go.uuid)
|
|
||||||
[](https://coveralls.io/github/satori/go.uuid)
|
|
||||||
[](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
|
|
||||||
}
|
|
||||||
|
|
@ -368,6 +368,9 @@ github.com/golang/snappy
|
||||||
github.com/google/go-github/v24/github
|
github.com/google/go-github/v24/github
|
||||||
# github.com/google/go-querystring v1.0.0
|
# github.com/google/go-querystring v1.0.0
|
||||||
github.com/google/go-querystring/query
|
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
|
# github.com/gorilla/context v1.1.1
|
||||||
## explicit
|
## explicit
|
||||||
github.com/gorilla/context
|
github.com/gorilla/context
|
||||||
|
|
@ -594,9 +597,6 @@ github.com/quasoft/websspi
|
||||||
github.com/quasoft/websspi/secctx
|
github.com/quasoft/websspi/secctx
|
||||||
# github.com/remyoudompheng/bigfft v0.0.0-20190321074620-2f0d2b0e0001
|
# github.com/remyoudompheng/bigfft v0.0.0-20190321074620-2f0d2b0e0001
|
||||||
## explicit
|
## explicit
|
||||||
# github.com/satori/go.uuid v1.2.0
|
|
||||||
## explicit
|
|
||||||
github.com/satori/go.uuid
|
|
||||||
# github.com/sergi/go-diff v1.1.0
|
# github.com/sergi/go-diff v1.1.0
|
||||||
## explicit
|
## explicit
|
||||||
github.com/sergi/go-diff/diffmatchpatch
|
github.com/sergi/go-diff/diffmatchpatch
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue