From 9f04fc2f7b31aeefa8281aff0d1d40a698f4b627 Mon Sep 17 00:00:00 2001 From: Michael Muré Date: Thu, 19 Jul 2018 17:58:15 +0200 Subject: bug: replace the uuid based id with the hash of the first commit --- vendor/github.com/kevinburke/go.uuid/generator.go | 256 ---------------------- 1 file changed, 256 deletions(-) delete mode 100644 vendor/github.com/kevinburke/go.uuid/generator.go (limited to 'vendor/github.com/kevinburke/go.uuid/generator.go') diff --git a/vendor/github.com/kevinburke/go.uuid/generator.go b/vendor/github.com/kevinburke/go.uuid/generator.go deleted file mode 100644 index 83abbcfd..00000000 --- a/vendor/github.com/kevinburke/go.uuid/generator.go +++ /dev/null @@ -1,256 +0,0 @@ -// Copyright (C) 2013-2018 by Maxim Bublis -// -// 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 a UUID based on the MD5 hash of namespace UUID and name. -func NewV3(ns UUID, name string) UUID { - return global.NewV3(ns, name) -} - -// NewV4 returns a randomly generated UUID. -func NewV4() UUID { - u, err := ID4() - if err != nil { - panic(err) - } - return u -} - -// ID4 returns a randomly generated UUID, or an error if there was not enough -// entropy. -func ID4() (UUID, error) { - 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, error) { - u := UUID{} - if err := g.random(u[:]); err != nil { - return u, err - } - u.SetVersion(V4) - u.SetVariant(VariantRFC4122) - - return u, nil -} - -// 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() error { - buf := make([]byte, 2) - if err := g.random(buf); err != nil { - return err - } - g.clockSequence = binary.BigEndian.Uint16(buf) - return nil -} - -func (g *generator) initHardwareAddr() error { - interfaces, err := net.Interfaces() - if err == nil { - for _, iface := range interfaces { - if len(iface.HardwareAddr) >= 6 { - copy(g.hardwareAddr[:], iface.HardwareAddr) - return nil - } - } - } - - // Initialize hardwareAddr randomly in case - // of real network interfaces absence - if err := g.random(g.hardwareAddr[:]); err != nil { - return err - } - - // Set multicast bit as recommended in RFC 4122 - g.hardwareAddr[0] |= 0x01 - return nil -} - -func (g *generator) random(dest []byte) error { - _, err := rand.Read(dest) - return 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 -} -- cgit