Merge pull request #1763 from thaJeztah/bump_docker_licensing

bump docker/licensing to 9781369abdb5281cdc07a2a446c6df01347ec793

vendor.conf

@@ -24,7 +24,7 @@ github.com/docker/go-events 9461782956ad83b30282bf90e31fa6a70c255ba9
 github.com/docker/go-metrics d466d4f6fd960e01820085bd7e1a24426ee7ef18
 github.com/docker/go-units 47565b4f722fb6ceae66b95f853feed578a4a51c # v0.3.3
 github.com/docker/libtrust 9cbd2a1374f46905c68a4eb3694a130610adc62a
-github.com/docker/licensing 1c117a1720cb413dd6a101d36a6c567b1ccb90fe
+github.com/docker/licensing 9781369abdb5281cdc07a2a446c6df01347ec793
 github.com/docker/swarmkit 415dc72789e2b733ea884f09188c286ca187d8ec
 github.com/flynn-archive/go-shlex 3f9db97f856818214da2e1057f8ad84803971cff
 github.com/ghodss/yaml 0ca9ea5df5451ffdf184b4428c902747c2c11cd7 # v1.0.0
@@ -36,6 +36,7 @@ github.com/google/btree e89373fe6b4a7413d7acd6da1725b83ef713e6e4
 github.com/google/go-cmp v0.2.0
 github.com/google/gofuzz 24818f796faf91cd76ec7bddd72458fbced7a6c1
 github.com/google/shlex 6f45313302b9c56850fc17f99e40caebce98c716
+github.com/google/uuid v1.1.1
 github.com/googleapis/gnostic 7c663266750e7d82587642f65e60bc4083f1f84e # v0.2.0
 github.com/gorilla/mux v1.7.0
 github.com/gregjones/httpcache 9cad4c3443a7200dd6400aef47183728de563a38
@@ -68,7 +69,6 @@ github.com/prometheus/client_model 6f3806018612930941127f2a7c6c453ba2c527d2
 github.com/prometheus/common 7600349dcfe1abd18d72d3a1770870d9800a7801
 github.com/prometheus/procfs 7d6f385de8bea29190f15ba9931442a0eaef9af7
 github.com/russross/blackfriday 1d6b8e9301e720b08a8938b8c25c018285885438
-github.com/satori/go.uuid d41af8bb6a7704f00bc3b7cba9355ae6a5a80048
 github.com/shurcooL/sanitized_anchor_name 10ef21a441db47d8b13ebcc5fd2310f636973c77
 github.com/sirupsen/logrus v1.0.6
 github.com/spf13/cobra v0.0.3

vendor/github.com/docker/licensing/lib/go-auth/jwt/jwt.go

@@ -10,7 +10,7 @@ import (
 
 	"github.com/dgrijalva/jwt-go"
 	"github.com/docker/licensing/lib/go-auth/identity"
-	"github.com/satori/go.uuid"
+	"github.com/google/uuid"
 )
 
 const (
@@ -100,7 +100,7 @@ func Encode(identity identity.DockerIdentity, options EncodeOptions) (string, er
 
 	jtiStr := options.Jti
 	if len(jtiStr) == 0 {
-		jtiStr = "jti-" + uuid.NewV4().String()
+		jtiStr = "jti-" + uuid.New().String()
 	}
 	token.Claims[jti] = jtiStr
 

vendor/github.com/docker/licensing/model/subscriptions.go

@@ -2,11 +2,11 @@ package model
 
 import (
 	"fmt"
+	"strings"
 	"time"
 
-	"strings"
-
 	validation "github.com/docker/licensing/lib/go-validation"
+	"github.com/docker/licensing/types"
 )
 
 // PricingComponents represents a collection of pricing components
@@ -37,20 +37,20 @@ func (s *Subscription) String() string {
 	storeURL := "https://docker.com/licensing"
 
 	var nameMsg, expirationMsg, statusMsg string
-	switch s.State {
+	switch types.State(s.State) {
-	case "cancelled":
+	case types.Cancelled:
 		statusMsg = fmt.Sprintf("\tCancelled! You will no longer receive updates. To purchase go to %s", storeURL)
 		expirationMsg = fmt.Sprintf("Expiration date: %s", s.Expires.Format("2006-01-02"))
-	case "expired":
+	case types.Expired:
 		statusMsg = fmt.Sprintf("\tExpired! You will no longer receive updates. Please renew at %s", storeURL)
 		expirationMsg = fmt.Sprintf("Expiration date: %s", s.Expires.Format("2006-01-02"))
-	case "preparing":
+	case types.Preparing:
 		statusMsg = "\tYour subscription has not yet begun"
 		expirationMsg = fmt.Sprintf("Activation date: %s", s.Start.Format("2006-01-02"))
-	case "failed":
+	case types.Failed:
 		statusMsg = "\tOops, this subscription did not get setup properly!"
 		expirationMsg = ""
-	case "active":
+	case types.Active:
 		statusMsg = "\tLicense is currently active"
 		expirationMsg = fmt.Sprintf("Expiration date: %s", s.Expires.Format("2006-01-02"))
 	default:

vendor/github.com/docker/licensing/storage.go

@@ -11,11 +11,10 @@ import (
 	"strings"
 	"time"
 
-	"github.com/docker/licensing/model"
-
 	"github.com/docker/docker/api/types"
 	"github.com/docker/docker/api/types/filters"
 	"github.com/docker/docker/api/types/swarm"
+	"github.com/docker/licensing/model"
 )
 
 var (
@@ -88,11 +87,14 @@ func (c *client) LoadLocalLicense(ctx context.Context, clnt WrappedDockerClient)
 	} else {
 		// Load the latest license index
 		var latestVersion int
+
+		// check if node is swarm manager
+		if !info.Swarm.ControlAvailable {
+			return nil, ErrWorkerNode
+		}
+
 		latestVersion, err = getLatestNamedConfig(clnt, licenseNamePrefix)
 		if err != nil {
-			if strings.Contains(err.Error(), "not a swarm manager.") {
-				return nil, ErrWorkerNode
-			}
 			return nil, fmt.Errorf("unable to get latest license version: %s", err)
 		}
 		if latestVersion >= 0 {

vendor/github.com/docker/licensing/types/types.go

@@ -0,0 +1,17 @@
+package types
+
+// State represents a given subscription's current status
+type State string
+
+const (
+	// Active means a subscription is currently in a working, live state
+	Active State = "active"
+	// Expired means a subscription's end date is in the past
+	Expired State = "expired"
+	// Cancelled means the subscription has been cancelled
+	Cancelled State = "cancelled"
+	// Preparing means that the subscription's payment (if any) is being still processed
+	Preparing State = "preparing"
+	// Failed means that there was a problem creating the subscription
+	Failed State = "failed"
+)

vendor/github.com/google/uuid/LICENSE

@@ -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.

vendor/github.com/google/uuid/README.md

@@ -0,0 +1,19 @@
+# uuid ![build status](https://travis-ci.org/google/uuid.svg?branch=master)
+The uuid package generates and inspects UUIDs based on
+[RFC 4122](http://tools.ietf.org/html/rfc4122)
+and DCE 1.1: Authentication and Security Services. 
+
+This package is based on the github.com/pborman/uuid package (previously named
+code.google.com/p/go-uuid).  It differs from these earlier packages in that
+a UUID is a 16 byte array rather than a byte slice.  One loss due to this
+change is the ability to represent an invalid UUID (vs a NIL UUID).
+
+###### Install
+`go get github.com/google/uuid`
+
+###### Documentation 
+[![GoDoc](https://godoc.org/github.com/google/uuid?status.svg)](http://godoc.org/github.com/google/uuid)
+
+Full `go doc` style documentation for the package can be viewed online without
+installing this package by using the GoDoc site here: 
+http://godoc.org/github.com/google/uuid

vendor/github.com/google/uuid/dce.go

@@ -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))
+}

vendor/github.com/google/uuid/doc.go

@@ -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

vendor/github.com/google/uuid/hash.go

@@ -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)
+}

vendor/github.com/google/uuid/marshal.go

@@ -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
+}

vendor/github.com/google/uuid/node.go

@@ -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[:]
+}

vendor/github.com/google/uuid/node_js.go

@@ -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 }

vendor/github.com/google/uuid/node_net.go

@@ -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
+}

vendor/github.com/google/uuid/sql.go

@@ -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
+}

vendor/github.com/google/uuid/time.go

@@ -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
+}

vendor/github.com/google/uuid/util.go

@@ -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
+}

vendor/github.com/google/uuid/uuid.go

@@ -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
+}

vendor/github.com/google/uuid/version1.go

@@ -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
+}

vendor/github.com/google/uuid/version4.go

@@ -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
+}

vendor/github.com/satori/go.uuid/LICENSE

@@ -1,20 +0,0 @@
-Copyright (C) 2013-2015 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.

vendor/github.com/satori/go.uuid/README.md

@@ -1,66 +0,0 @@
-# UUID package for Go language
-
-[![Build Status](https://travis-ci.org/satori/go.uuid.png?branch=master)](https://travis-ci.org/satori/go.uuid)
-[![GoDoc](http://godoc.org/github.com/satori/go.uuid?status.png)](http://godoc.org/github.com/satori/go.uuid)
-
-This package provides pure Go implementation of Universally Unique Identifier (UUID). Supported both creation and parsing of UUIDs.
-
-With 100% test coverage and benchmarks out of box.
-
-Supported versions:
-* Version 1, based on timestamp and MAC address (RFC 4122)
-* Version 2, based on timestamp, MAC address and POSIX UID/GID (DCE 1.1)
-* Version 3, based on MD5 hashing (RFC 4122)
-* Version 4, based on random numbers (RFC 4122)
-* Version 5, based on SHA-1 hashing (RFC 4122)
-
-## Installation
-
-Use the `go` command:
-
-	$ go get github.com/satori/go.uuid
-
-## Requirements
-
-UUID package requires any stable version of Go Programming Language.
-
-It is tested against following versions of Go: 1.0-1.5
-
-## 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) 2013-2015 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.

vendor/github.com/satori/go.uuid/uuid.go

@@ -1,435 +0,0 @@
-// Copyright (C) 2013-2015 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"
-	"crypto/md5"
-	"crypto/rand"
-	"crypto/sha1"
-	"database/sql/driver"
-	"encoding/binary"
-	"encoding/hex"
-	"fmt"
-	"hash"
-	"net"
-	"os"
-	"sync"
-	"time"
-)
-
-// UUID layout variants.
-const (
-	VariantNCS = iota
-	VariantRFC4122
-	VariantMicrosoft
-	VariantFuture
-)
-
-// UUID DCE domains.
-const (
-	DomainPerson = iota
-	DomainGroup
-	DomainOrg
-)
-
-// Difference in 100-nanosecond intervals between
-// UUID epoch (October 15, 1582) and Unix epoch (January 1, 1970).
-const epochStart = 122192928000000000
-
-// Used in string method conversion
-const dash byte = '-'
-
-// UUID v1/v2 storage.
-var (
-	storageMutex  sync.Mutex
-	storageOnce   sync.Once
-	epochFunc     = unixTimeFunc
-	clockSequence uint16
-	lastTime      uint64
-	hardwareAddr  [6]byte
-	posixUID      = uint32(os.Getuid())
-	posixGID      = uint32(os.Getgid())
-)
-
-// String parse helpers.
-var (
-	urnPrefix  = []byte("urn:uuid:")
-	byteGroups = []int{8, 4, 4, 4, 12}
-)
-
-func initClockSequence() {
-	buf := make([]byte, 2)
-	safeRandom(buf)
-	clockSequence = binary.BigEndian.Uint16(buf)
-}
-
-func initHardwareAddr() {
-	interfaces, err := net.Interfaces()
-	if err == nil {
-		for _, iface := range interfaces {
-			if len(iface.HardwareAddr) >= 6 {
-				copy(hardwareAddr[:], iface.HardwareAddr)
-				return
-			}
-		}
-	}
-
-	// Initialize hardwareAddr randomly in case
-	// of real network interfaces absence
-	safeRandom(hardwareAddr[:])
-
-	// Set multicast bit as recommended in RFC 4122
-	hardwareAddr[0] |= 0x01
-}
-
-func initStorage() {
-	initClockSequence()
-	initHardwareAddr()
-}
-
-func safeRandom(dest []byte) {
-	if _, err := rand.Read(dest); err != nil {
-		panic(err)
-	}
-}
-
-// 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)
-}
-
-// UUID representation compliant with specification
-// described in RFC 4122.
-type UUID [16]byte
-
-// The nil UUID is special form of UUID that is specified to have all
-// 128 bits set to zero.
-var Nil = UUID{}
-
-// Predefined namespace UUIDs.
-var (
-	NamespaceDNS, _  = FromString("6ba7b810-9dad-11d1-80b4-00c04fd430c8")
-	NamespaceURL, _  = FromString("6ba7b811-9dad-11d1-80b4-00c04fd430c8")
-	NamespaceOID, _  = FromString("6ba7b812-9dad-11d1-80b4-00c04fd430c8")
-	NamespaceX500, _ = FromString("6ba7b814-9dad-11d1-80b4-00c04fd430c8")
-)
-
-// And returns result of binary AND of two UUIDs.
-func And(u1 UUID, u2 UUID) UUID {
-	u := UUID{}
-	for i := 0; i < 16; i++ {
-		u[i] = u1[i] & u2[i]
-	}
-	return u
-}
-
-// Or returns result of binary OR of two UUIDs.
-func Or(u1 UUID, u2 UUID) UUID {
-	u := UUID{}
-	for i := 0; i < 16; i++ {
-		u[i] = u1[i] | u2[i]
-	}
-	return u
-}
-
-// 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() uint {
-	return uint(u[6] >> 4)
-}
-
-// Variant returns UUID layout variant.
-func (u UUID) Variant() uint {
-	switch {
-	case (u[8] & 0x80) == 0x00:
-		return VariantNCS
-	case (u[8]&0xc0)|0x80 == 0x80:
-		return VariantRFC4122
-	case (u[8]&0xe0)|0xc0 == 0xc0:
-		return VariantMicrosoft
-	}
-	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] = dash
-	hex.Encode(buf[9:13], u[4:6])
-	buf[13] = dash
-	hex.Encode(buf[14:18], u[6:8])
-	buf[18] = dash
-	hex.Encode(buf[19:23], u[8:10])
-	buf[23] = dash
-	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 as described in RFC 4122.
-func (u *UUID) SetVariant() {
-	u[8] = (u[8] & 0xbf) | 0x80
-}
-
-// 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"
-func (u *UUID) UnmarshalText(text []byte) (err error) {
-	if len(text) < 32 {
-		err = fmt.Errorf("uuid: invalid UUID string: %s", text)
-		return
-	}
-
-	if bytes.Equal(text[:9], urnPrefix) {
-		text = text[9:]
-	} else if text[0] == '{' {
-		text = text[1:]
-	}
-
-	b := u[:]
-
-	for _, byteGroup := range byteGroups {
-		if text[0] == '-' {
-			text = text[1:]
-		}
-
-		_, err = hex.Decode(b[:byteGroup/2], text[:byteGroup])
-
-		if err != nil {
-			return
-		}
-
-		text = text[byteGroup:]
-		b = b[byteGroup/2:]
-	}
-
-	return
-}
-
-// 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) != 16 {
-		err = fmt.Errorf("uuid: UUID must be exactly 16 bytes long, got %d bytes", len(data))
-		return
-	}
-	copy(u[:], data)
-
-	return
-}
-
-// 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) == 16 {
-			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)
-}
-
-// 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
-}
-
-// Returns UUID v1/v2 storage state.
-// Returns epoch timestamp, clock sequence, and hardware address.
-func getStorage() (uint64, uint16, []byte) {
-	storageOnce.Do(initStorage)
-
-	storageMutex.Lock()
-	defer storageMutex.Unlock()
-
-	timeNow := epochFunc()
-	// Clock changed backwards since last UUID generation.
-	// Should increase clock sequence.
-	if timeNow <= lastTime {
-		clockSequence++
-	}
-	lastTime = timeNow
-
-	return timeNow, clockSequence, hardwareAddr[:]
-}
-
-// NewV1 returns UUID based on current timestamp and MAC address.
-func NewV1() UUID {
-	u := UUID{}
-
-	timeNow, clockSeq, hardwareAddr := getStorage()
-
-	binary.BigEndian.PutUint32(u[0:], uint32(timeNow))
-	binary.BigEndian.PutUint16(u[4:], uint16(timeNow>>32))
-	binary.BigEndian.PutUint16(u[6:], uint16(timeNow>>48))
-	binary.BigEndian.PutUint16(u[8:], clockSeq)
-
-	copy(u[10:], hardwareAddr)
-
-	u.SetVersion(1)
-	u.SetVariant()
-
-	return u
-}
-
-// NewV2 returns DCE Security UUID based on POSIX UID/GID.
-func NewV2(domain byte) UUID {
-	u := UUID{}
-
-	timeNow, clockSeq, hardwareAddr := getStorage()
-
-	switch domain {
-	case DomainPerson:
-		binary.BigEndian.PutUint32(u[0:], posixUID)
-	case DomainGroup:
-		binary.BigEndian.PutUint32(u[0:], posixGID)
-	}
-
-	binary.BigEndian.PutUint16(u[4:], uint16(timeNow>>32))
-	binary.BigEndian.PutUint16(u[6:], uint16(timeNow>>48))
-	binary.BigEndian.PutUint16(u[8:], clockSeq)
-	u[9] = domain
-
-	copy(u[10:], hardwareAddr)
-
-	u.SetVersion(2)
-	u.SetVariant()
-
-	return u
-}
-
-// NewV3 returns UUID based on MD5 hash of namespace UUID and name.
-func NewV3(ns UUID, name string) UUID {
-	u := newFromHash(md5.New(), ns, name)
-	u.SetVersion(3)
-	u.SetVariant()
-
-	return u
-}
-
-// NewV4 returns random generated UUID.
-func NewV4() UUID {
-	u := UUID{}
-	safeRandom(u[:])
-	u.SetVersion(4)
-	u.SetVariant()
-
-	return u
-}
-
-// NewV5 returns UUID based on SHA-1 hash of namespace UUID and name.
-func NewV5(ns UUID, name string) UUID {
-	u := newFromHash(sha1.New(), ns, name)
-	u.SetVersion(5)
-	u.SetVariant()
-
-	return u
-}
-
-// Returns UUID based on hashing of namespace UUID and name.
-func newFromHash(h hash.Hash, ns UUID, name string) UUID {
-	u := UUID{}
-	h.Write(ns[:])
-	h.Write([]byte(name))
-	copy(u[:], h.Sum(nil))
-
-	return u
-}