Repository navigation
Expand file tree
/
Copy pathbucket-lifecycle.go
More file actions
818 lines (727 loc) · 25.4 KB
/
Copy pathbucket-lifecycle.go
File metadata and controls
818 lines (727 loc) · 25.4 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package cmd
import (
"context"
"encoding/xml"
"errors"
"fmt"
"io"
"net/http"
"strings"
"sync"
"sync/atomic"
"time"
"github.com/google/uuid"
"github.com/minio/minio-go/v7/pkg/tags"
"github.com/minio/minio/internal/amztime"
sse "github.com/minio/minio/internal/bucket/encryption"
"github.com/minio/minio/internal/bucket/lifecycle"
"github.com/minio/minio/internal/event"
xhttp "github.com/minio/minio/internal/http"
"github.com/minio/minio/internal/logger"
"github.com/minio/minio/internal/s3select"
)
const (
// Disabled means the lifecycle rule is inactive
Disabled = "Disabled"
// TransitionStatus status of transition
TransitionStatus = "transition-status"
// TransitionedObjectName name of transitioned object
TransitionedObjectName = "transitioned-object"
// TransitionedVersionID is version of remote object
TransitionedVersionID = "transitioned-versionID"
// TransitionTier name of transition storage class
TransitionTier = "transition-tier"
)
// LifecycleSys - Bucket lifecycle subsystem.
type LifecycleSys struct{}
// Get - gets lifecycle config associated to a given bucket name.
func (sys *LifecycleSys) Get(bucketName string) (lc *lifecycle.Lifecycle, err error) {
return globalBucketMetadataSys.GetLifecycleConfig(bucketName)
}
// NewLifecycleSys - creates new lifecycle system.
func NewLifecycleSys() *LifecycleSys {
return &LifecycleSys{}
}
type expiryTask struct {
objInfo ObjectInfo
versionExpiry bool
restoredObject bool
}
type expiryState struct {
once sync.Once
byDaysCh chan expiryTask
byNewerNoncurrentCh chan newerNoncurrentTask
}
// PendingTasks returns the number of pending ILM expiry tasks.
func (es *expiryState) PendingTasks() int {
return len(es.byDaysCh) + len(es.byNewerNoncurrentCh)
}
// close closes work channels exactly once.
func (es *expiryState) close() {
es.once.Do(func() {
close(es.byDaysCh)
close(es.byNewerNoncurrentCh)
})
}
// enqueueByDays enqueues object versions expired by days for expiry.
func (es *expiryState) enqueueByDays(oi ObjectInfo, restoredObject bool, rmVersion bool) {
select {
case <-GlobalContext.Done():
es.close()
case es.byDaysCh <- expiryTask{objInfo: oi, versionExpiry: rmVersion, restoredObject: restoredObject}:
default:
}
}
// enqueueByNewerNoncurrent enqueues object versions expired by
// NewerNoncurrentVersions limit for expiry.
func (es *expiryState) enqueueByNewerNoncurrent(bucket string, versions []ObjectToDelete) {
select {
case <-GlobalContext.Done():
es.close()
case es.byNewerNoncurrentCh <- newerNoncurrentTask{bucket: bucket, versions: versions}:
default:
}
}
var globalExpiryState *expiryState
func newExpiryState() *expiryState {
return &expiryState{
byDaysCh: make(chan expiryTask, 10000),
byNewerNoncurrentCh: make(chan newerNoncurrentTask, 10000),
}
}
func initBackgroundExpiry(ctx context.Context, objectAPI ObjectLayer) {
globalExpiryState = newExpiryState()
go func() {
for t := range globalExpiryState.byDaysCh {
if t.objInfo.TransitionedObject.Status != "" {
applyExpiryOnTransitionedObject(ctx, objectAPI, t.objInfo, t.restoredObject)
} else {
applyExpiryOnNonTransitionedObjects(ctx, objectAPI, t.objInfo, t.versionExpiry)
}
}
}()
go func() {
for t := range globalExpiryState.byNewerNoncurrentCh {
deleteObjectVersions(ctx, objectAPI, t.bucket, t.versions)
}
}()
}
// newerNoncurrentTask encapsulates arguments required by worker to expire objects
// by NewerNoncurrentVersions
type newerNoncurrentTask struct {
bucket string
versions []ObjectToDelete
}
type transitionTask struct {
tier string
objInfo ObjectInfo
}
type transitionState struct {
once sync.Once
transitionCh chan transitionTask
ctx context.Context
objAPI ObjectLayer
mu sync.Mutex
numWorkers int
killCh chan struct{}
activeTasks int32
lastDayMu sync.RWMutex
lastDayStats map[string]*lastDayTierStats
}
func (t *transitionState) queueTransitionTask(oi ObjectInfo, sc string) {
select {
case <-GlobalContext.Done():
t.once.Do(func() {
close(t.transitionCh)
})
case t.transitionCh <- transitionTask{objInfo: oi, tier: sc}:
default:
}
}
var globalTransitionState *transitionState
func newTransitionState(ctx context.Context, objAPI ObjectLayer) *transitionState {
return &transitionState{
transitionCh: make(chan transitionTask, 10000),
ctx: ctx,
objAPI: objAPI,
killCh: make(chan struct{}),
lastDayStats: make(map[string]*lastDayTierStats),
}
}
// PendingTasks returns the number of ILM transition tasks waiting for a worker
// goroutine.
func (t *transitionState) PendingTasks() int {
return len(globalTransitionState.transitionCh)
}
// ActiveTasks returns the number of active (ongoing) ILM transition tasks.
func (t *transitionState) ActiveTasks() int {
return int(atomic.LoadInt32(&t.activeTasks))
}
// worker waits for transition tasks
func (t *transitionState) worker(ctx context.Context, objectAPI ObjectLayer) {
for {
select {
case <-t.killCh:
return
case <-ctx.Done():
return
case task, ok := <-t.transitionCh:
if !ok {
return
}
atomic.AddInt32(&t.activeTasks, 1)
if err := transitionObject(ctx, objectAPI, task.objInfo, task.tier); err != nil {
logger.LogIf(ctx, fmt.Errorf("Transition failed for %s/%s version:%s with %w",
task.objInfo.Bucket, task.objInfo.Name, task.objInfo.VersionID, err))
} else {
ts := tierStats{
TotalSize: uint64(task.objInfo.Size),
NumVersions: 1,
}
if task.objInfo.IsLatest {
ts.NumObjects = 1
}
t.addLastDayStats(task.tier, ts)
}
atomic.AddInt32(&t.activeTasks, -1)
}
}
}
func (t *transitionState) addLastDayStats(tier string, ts tierStats) {
t.lastDayMu.Lock()
defer t.lastDayMu.Unlock()
if _, ok := t.lastDayStats[tier]; !ok {
t.lastDayStats[tier] = &lastDayTierStats{}
}
t.lastDayStats[tier].addStats(ts)
}
func (t *transitionState) getDailyAllTierStats() DailyAllTierStats {
t.lastDayMu.RLock()
defer t.lastDayMu.RUnlock()
res := make(DailyAllTierStats, len(t.lastDayStats))
for tier, st := range t.lastDayStats {
res[tier] = st.clone()
}
return res
}
// UpdateWorkers at the end of this function leaves n goroutines waiting for
// transition tasks
func (t *transitionState) UpdateWorkers(n int) {
t.mu.Lock()
defer t.mu.Unlock()
for t.numWorkers < n {
go t.worker(t.ctx, t.objAPI)
t.numWorkers++
}
for t.numWorkers > n {
go func() { t.killCh <- struct{}{} }()
t.numWorkers--
}
}
func initBackgroundTransition(ctx context.Context, objectAPI ObjectLayer) {
globalTransitionState = newTransitionState(ctx, objectAPI)
n := globalAPIConfig.getTransitionWorkers()
globalTransitionState.UpdateWorkers(n)
}
var errInvalidStorageClass = errors.New("invalid storage class")
func validateTransitionTier(lc *lifecycle.Lifecycle) error {
for _, rule := range lc.Rules {
if rule.Transition.StorageClass != "" {
if valid := globalTierConfigMgr.IsTierValid(rule.Transition.StorageClass); !valid {
return errInvalidStorageClass
}
}
if rule.NoncurrentVersionTransition.StorageClass != "" {
if valid := globalTierConfigMgr.IsTierValid(rule.NoncurrentVersionTransition.StorageClass); !valid {
return errInvalidStorageClass
}
}
}
return nil
}
// enqueueTransitionImmediate enqueues obj for transition if eligible.
// This is to be called after a successful upload of an object (version).
func enqueueTransitionImmediate(obj ObjectInfo) {
if lc, err := globalLifecycleSys.Get(obj.Bucket); err == nil {
event := lc.Eval(obj.ToLifecycleOpts())
switch event.Action {
case lifecycle.TransitionAction, lifecycle.TransitionVersionAction:
globalTransitionState.queueTransitionTask(obj, event.StorageClass)
}
}
}
// expireAction represents different actions to be performed on expiry of a
// restored/transitioned object
type expireAction int
const (
// ignore the zero value
_ expireAction = iota
// expireObj indicates expiry of 'regular' transitioned objects.
expireObj
// expireRestoredObj indicates expiry of restored objects.
expireRestoredObj
)
// expireTransitionedObject handles expiry of transitioned/restored objects
// (versions) in one of the following situations:
//
// 1. when a restored (via PostRestoreObject API) object expires.
// 2. when a transitioned object expires (based on an ILM rule).
func expireTransitionedObject(ctx context.Context, objectAPI ObjectLayer, oi *ObjectInfo, lcOpts lifecycle.ObjectOpts, action expireAction) error {
var opts ObjectOptions
opts.Versioned = globalBucketVersioningSys.PrefixEnabled(oi.Bucket, oi.Name)
opts.VersionID = lcOpts.VersionID
opts.Expiration = ExpirationOptions{Expire: true}
switch action {
case expireObj:
// When an object is past expiry or when a transitioned object is being
// deleted, 'mark' the data in the remote tier for delete.
entry := jentry{
ObjName: oi.TransitionedObject.Name,
VersionID: oi.TransitionedObject.VersionID,
TierName: oi.TransitionedObject.Tier,
}
if err := globalTierJournal.AddEntry(entry); err != nil {
logger.LogIf(ctx, err)
return err
}
// Delete metadata on source, now that data in remote tier has been
// marked for deletion.
if _, err := objectAPI.DeleteObject(ctx, oi.Bucket, oi.Name, opts); err != nil {
logger.LogIf(ctx, err)
return err
}
// Send audit for the lifecycle delete operation
auditLogLifecycle(ctx, *oi, ILMExpiry)
eventName := event.ObjectRemovedDelete
if lcOpts.DeleteMarker {
eventName = event.ObjectRemovedDeleteMarkerCreated
}
objInfo := ObjectInfo{
Name: oi.Name,
VersionID: lcOpts.VersionID,
DeleteMarker: lcOpts.DeleteMarker,
}
// Notify object deleted event.
sendEvent(eventArgs{
EventName: eventName,
BucketName: oi.Bucket,
Object: objInfo,
Host: "Internal: [ILM-EXPIRY]",
})
case expireRestoredObj:
// delete locally restored copy of object or object version
// from the source, while leaving metadata behind. The data on
// transitioned tier lies untouched and still accessible
opts.Transition.ExpireRestored = true
_, err := objectAPI.DeleteObject(ctx, oi.Bucket, oi.Name, opts)
return err
default:
return fmt.Errorf("Unknown expire action %v", action)
}
return nil
}
// generate an object name for transitioned object
func genTransitionObjName(bucket string) (string, error) {
u, err := uuid.NewRandom()
if err != nil {
return "", err
}
us := u.String()
obj := fmt.Sprintf("%s/%s/%s/%s/%s", globalDeploymentID, bucket, us[0:2], us[2:4], us)
return obj, nil
}
// transition object to target specified by the transition ARN. When an object is transitioned to another
// storage specified by the transition ARN, the metadata is left behind on source cluster and original content
// is moved to the transition tier. Note that in the case of encrypted objects, entire encrypted stream is moved
// to the transition tier without decrypting or re-encrypting.
func transitionObject(ctx context.Context, objectAPI ObjectLayer, oi ObjectInfo, tier string) error {
opts := ObjectOptions{
Transition: TransitionOptions{
Status: lifecycle.TransitionPending,
Tier: tier,
ETag: oi.ETag,
},
VersionID: oi.VersionID,
Versioned: globalBucketVersioningSys.PrefixEnabled(oi.Bucket, oi.Name),
VersionSuspended: globalBucketVersioningSys.PrefixSuspended(oi.Bucket, oi.Name),
MTime: oi.ModTime,
}
return objectAPI.TransitionObject(ctx, oi.Bucket, oi.Name, opts)
}
type auditTierOp struct {
Tier string `json:"tier"`
TimeToResponseNS int64 `json:"timeToResponseNS"`
OutputBytes int64 `json:"tx,omitempty"`
Error string `json:"error,omitempty"`
}
func auditTierActions(ctx context.Context, tier string, bytes int64) func(err error) {
startTime := time.Now()
return func(err error) {
// Record only when audit targets configured.
if len(logger.AuditTargets()) == 0 {
return
}
op := auditTierOp{
Tier: tier,
OutputBytes: bytes,
}
if err == nil {
op.TimeToResponseNS = time.Since(startTime).Nanoseconds()
} else {
op.Error = err.Error()
}
logger.GetReqInfo(ctx).AppendTags("tierStats", op)
}
}
// getTransitionedObjectReader returns a reader from the transitioned tier.
func getTransitionedObjectReader(ctx context.Context, bucket, object string, rs *HTTPRangeSpec, h http.Header, oi ObjectInfo, opts ObjectOptions) (gr *GetObjectReader, err error) {
tgtClient, err := globalTierConfigMgr.getDriver(oi.TransitionedObject.Tier)
if err != nil {
return nil, fmt.Errorf("transition storage class not configured")
}
fn, off, length, err := NewGetObjectReader(rs, oi, opts)
if err != nil {
return nil, ErrorRespToObjectError(err, bucket, object)
}
gopts := WarmBackendGetOpts{}
// get correct offsets for object
if off >= 0 && length >= 0 {
gopts.startOffset = off
gopts.length = length
}
timeTierAction := auditTierActions(ctx, oi.TransitionedObject.Tier, length)
reader, err := tgtClient.Get(ctx, oi.TransitionedObject.Name, remoteVersionID(oi.TransitionedObject.VersionID), gopts)
if err != nil {
return nil, err
}
closer := func() {
timeTierAction(reader.Close())
}
return fn(reader, h, closer)
}
// RestoreRequestType represents type of restore.
type RestoreRequestType string
const (
// SelectRestoreRequest specifies select request. This is the only valid value
SelectRestoreRequest RestoreRequestType = "SELECT"
)
// Encryption specifies encryption setting on restored bucket
type Encryption struct {
EncryptionType sse.Algorithm `xml:&quo
10000
t;EncryptionType"`
KMSContext string `xml:"KMSContext,omitempty"`
KMSKeyID string `xml:"KMSKeyId,omitempty"`
}
// MetadataEntry denotes name and value.
type MetadataEntry struct {
Name string `xml:"Name"`
Value string `xml:"Value"`
}
// S3Location specifies s3 location that receives result of a restore object request
type S3Location struct {
BucketName string `xml:"BucketName,omitempty"`
Encryption Encryption `xml:"Encryption,omitempty"`
Prefix string `xml:"Prefix,omitempty"`
StorageClass string `xml:"StorageClass,omitempty"`
Tagging *tags.Tags `xml:"Tagging,omitempty"`
UserMetadata []MetadataEntry `xml:"UserMetadata"`
}
// OutputLocation specifies bucket where object needs to be restored
type OutputLocation struct {
S3 S3Location `xml:"S3,omitempty"`
}
// IsEmpty returns true if output location not specified.
func (o *OutputLocation) IsEmpty() bool {
return o.S3.BucketName == ""
}
// SelectParameters specifies sql select parameters
type SelectParameters struct {
s3select.S3Select
}
// IsEmpty returns true if no select parameters set
func (sp *SelectParameters) IsEmpty() bool {
return sp == nil
}
var selectParamsXMLName = "SelectParameters"
// UnmarshalXML - decodes XML data.
func (sp *SelectParameters) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
// Essentially the same as S3Select barring the xml name.
if start.Name.Local == selectParamsXMLName {
start.Name = xml.Name{Space: "", Local: "SelectRequest"}
}
return sp.S3Select.UnmarshalXML(d, start)
}
// RestoreObjectRequest - xml to restore a transitioned object
type RestoreObjectRequest struct {
XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ RestoreRequest" json:"-"`
Days int `xml:"Days,omitempty"`
Type RestoreRequestType `xml:"Type,omitempty"`
Tier string `xml:"Tier"`
Description string `xml:"Description,omitempty"`
SelectParameters *SelectParameters `xml:"SelectParameters,omitempty"`
OutputLocation OutputLocation `xml:"OutputLocation,omitempty"`
}
// Maximum 2MiB size per restore object request.
const maxRestoreObjectRequestSize = 2 << 20
// parseRestoreRequest parses RestoreObjectRequest from xml
func parseRestoreRequest(reader io.Reader) (*RestoreObjectRequest, error) {
req := RestoreObjectRequest{}
if err := xml.NewDecoder(io.LimitReader(reader, maxRestoreObjectRequestSize)).Decode(&req); err != nil {
return nil, err
}
return &req, nil
}
// validate a RestoreObjectRequest as per AWS S3 spec https://docs.aws.amazon.com/AmazonS3/latest/API/API_RestoreObject.html
func (r *RestoreObjectRequest) validate(ctx context.Context, objAPI ObjectLayer) error {
if r.Type != SelectRestoreRequest && !r.SelectParameters.IsEmpty() {
return fmt.Errorf("Select parameters can only be specified with SELECT request type")
}
if r.Type == SelectRestoreRequest && r.SelectParameters.IsEmpty() {
return fmt.Errorf("SELECT restore request requires select parameters to be specified")
}
if r.Type != SelectRestoreRequest && !r.OutputLocation.IsEmpty() {
return fmt.Errorf("OutputLocation required only for SELECT request type")
}
if r.Type == SelectRestoreRequest && r.OutputLocation.IsEmpty() {
return fmt.Errorf("OutputLocation required for SELECT requests")
}
if r.Days != 0 && r.Type == SelectRestoreRequest {
return fmt.Errorf("Days cannot be specified with SELECT restore request")
}
if r.Days == 0 && r.Type != SelectRestoreRequest {
return fmt.Errorf("restoration days should be at least 1")
}
// Check if bucket exists.
if !r.OutputLocation.IsEmpty() {
if _, err := objAPI.GetBucketInfo(ctx, r.OutputLocation.S3.BucketName, BucketOptions{}); err != nil {
return err
}
if r.OutputLocation.S3.Prefix == "" {
return fmt.Errorf("Prefix is a required parameter in OutputLocation")
}
if r.OutputLocation.S3.Encryption.EncryptionType != xhttp.AmzEncryptionAES {
return NotImplemented{}
}
}
return nil
}
// postRestoreOpts returns ObjectOptions with version-id from the POST restore object request for a given bucket and object.
func postRestoreOpts(ctx context.Context, r *http.Request, bucket, object string) (opts ObjectOptions, err error) {
versioned := globalBucketVersioningSys.PrefixEnabled(bucket, object)
versionSuspended := globalBucketVersioningSys.PrefixSuspended(bucket, object)
vid := strings.TrimSpace(r.Form.Get(xhttp.VersionID))
if vid != "" && vid != nullVersionID {
_, err := uuid.Parse(vid)
if err != nil {
logger.LogIf(ctx, err)
return opts, InvalidVersionID{
Bucket: bucket,
Object: object,
VersionID: vid,
}
}
if !versioned && !versionSuspended {
return opts, InvalidArgument{
Bucket: bucket,
Object: object,
Err: fmt.Errorf("version-id specified %s but versioning is not enabled on %s", opts.VersionID, bucket),
}
}
}
return ObjectOptions{
Versioned: versioned,
VersionSuspended: versionSuspended,
VersionID: vid,
}, nil
}
// set ObjectOptions for PUT call to restore temporary copy of transitioned data
func putRestoreOpts(bucket, object string, rreq *RestoreObjectRequest, objInfo ObjectInfo) (putOpts ObjectOptions) {
meta := make(map[string]string)
sc := rreq.OutputLocation.S3.StorageClass
if sc == "" {
sc = objInfo.StorageClass
}
meta[strings.ToLower(xhttp.AmzStorageClass)] = sc
if rreq.Type == SelectRestoreRequest {
for _, v := range rreq.OutputLocation.S3.UserMetadata {
if !strings.HasPrefix(strings.ToLower(v.Name), "x-amz-meta") {
meta["x-amz-meta-"+v.Name] = v.Value
continue
}
meta[v.Name] = v.Value
}
if tags := rreq.OutputLocation.S3.Tagging.String(); tags != "" {
meta[xhttp.AmzObjectTagging] = tags
}
if rreq.OutputLocation.S3.Encryption.EncryptionType != "" {
meta[xhttp.AmzServerSideEncryption] = xhttp.AmzEncryptionAES
}
return ObjectOptions{
Versioned: globalBucketVersioningSys.PrefixEnabled(bucket, object),
VersionSuspended: globalBucketVersioningSys.PrefixSuspended(bucket, object),
UserDefined: meta,
}
}
for k, v := range objInfo.UserDefined {
meta[k] = v
}
if len(objInfo.UserTags) != 0 {
meta[xhttp.AmzObjectTagging] = objInfo.UserTags
}
// Set restore object status
restoreExpiry := lifecycle.ExpectedExpiryTime(time.Now().UTC(), rreq.Days)
meta[xhttp.AmzRestore] = completedRestoreObj(restoreExpiry).String()
return ObjectOptions{
Versioned: globalBucketVersioningSys.PrefixEnabled(bucket, object),
VersionSuspended: globalBucketVersioningSys.PrefixSuspended(bucket, object),
UserDefined: meta,
VersionID: objInfo.VersionID,
MTime: objInfo.ModTime,
Expires: objInfo.Expires,
}
}
var errRestoreHDRMalformed = fmt.Errorf("x-amz-restore header malformed")
// IsRemote returns true if this object version's contents are in its remote
// tier.
func (fi FileInfo) IsRemote() bool {
if fi.TransitionStatus != lifecycle.TransitionComplete {
return false
}
return !isRestoredObjectOnDisk(fi.Metadata)
}
// IsRemote returns true if this object version's contents are in its remote
// tier.
func (oi ObjectInfo) IsRemote() bool {
if oi.TransitionedObject.Status != lifecycle.TransitionComplete {
return false
}
return !isRestoredObjectOnDisk(oi.UserDefined)
}
// restoreObjStatus represents a restore-object's status. It can be either
// ongoing or completed.
type restoreObjStatus struct {
ongoing bool
expiry time.Time
}
// ongoingRestoreObj constructs restoreObjStatus for an ongoing restore-object.
func ongoingRestoreObj() restoreObjStatus {
return restoreObjStatus{
ongoing: true,
}
}
// completeRestoreObj constructs restoreObjStatus for a completed restore-object with given expiry.
func completedRestoreObj(expiry time.Time) restoreObjStatus {
return restoreObjStatus{
ongoing: false,
expiry: expiry.UTC(),
}
}
// String returns x-amz-restore compatible representation of r.
func (r restoreObjStatus) String() string {
if r.Ongoing() {
return `ongoing-request="true"`
}
return fmt.Sprintf(`ongoing-request="false", expiry-date="%s"`, r.expiry.Format(http.TimeFormat))
}
// Expiry returns expiry of restored object and true if restore-object has completed.
// Otherwise returns zero value of time.Time and false.
func (r restoreObjStatus) Expiry() (time.Time, bool) {
if r.Ongoing() {
return time.Time{}, false
}
return r.expiry, true
}
// Ongoing returns true if restore-object is ongoing.
func (r restoreObjStatus) Ongoing() bool {
return r.ongoing
}
// OnDisk returns true if restored object contents exist in MinIO. Otherwise returns false.
// The restore operation could be in one of the following states,
// - in progress (no content on MinIO's disks yet)
// - completed
// - completed but expired (again, no content on MinIO's disks)
func (r restoreObjStatus) OnDisk() bool {
if expiry, ok := r.Expiry(); ok && time.Now().UTC().Before(expiry) {
// completed
return true
}
return false // in progress or completed but expired
}
// parseRestoreObjStatus parses restoreHdr from AmzRestore header. If the value is valid it returns a
// restoreObjStatus value with the status and expiry (if any). Otherwise returns
// the empty value and an error indicating the parse failure.
func parseRestoreObjStatus(restoreHdr string) (restoreObjStatus, error) {
tokens := strings.SplitN(restoreHdr, ",", 2)
progressTokens := strings.SplitN(tokens[0], "=", 2)
if len(progressTokens) != 2 {
return restoreObjStatus{}, errRestoreHDRMalformed
}
if strings.TrimSpace(progressTokens[0]) != "ongoing-request" {
return restoreObjStatus{}, errRestoreHDRMalformed
}
switch progressTokens[1] {
case "true", `"true"`: // true without double quotes is deprecated in Feb 2022
if len(tokens) == 1 {
return ongoingRestoreObj(), nil
}
case "false", `"false"`: // false without double quotes is deprecated in Feb 2022
if len(tokens) != 2 {
return restoreObjStatus{}, errRestoreHDRMalformed
}
expiryTokens := strings.SplitN(tokens[1], "=", 2)
if len(expiryTokens) != 2 {
return restoreObjStatus{}, errRestoreHDRMalformed
}
if strings.TrimSpace(expiryTokens[0]) != "expiry-date" {
return restoreObjStatus{}, errRestoreHDRMalformed
}
expiry, err := amztime.ParseHeader(strings.Trim(expiryTokens[1], `"`))
if err != nil {
return restoreObjStatus{}, errRestoreHDRMalformed
}
return completedRestoreObj(expiry), nil
}
return restoreObjStatus{}, errRestoreHDRMalformed
}
// isRestoredObjectOnDisk returns true if the restored object is on disk. Note
// this function must be called only if object version's transition status is
// complete.
func isRestoredObjectOnDisk(meta map[string]string) (onDisk bool) {
if restoreHdr, ok := meta[xhttp.AmzRestore]; ok {
if restoreStatus, err := parseRestoreObjStatus(restoreHdr); err == nil {
return restoreStatus.OnDisk()
}
}
return onDisk
}
// ToLifecycleOpts returns lifecycle.ObjectOpts value for oi.
func (oi ObjectInfo) ToLifecycleOpts() lifecycle.ObjectOpts {
return lifecycle.ObjectOpts{
Name: oi.Name,
UserTags: oi.UserTags,
VersionID: oi.VersionID,
ModTime: oi.ModTime,
IsLatest: oi.IsLatest,
NumVersions: oi.NumVersions,
DeleteMarker: oi.DeleteMarker,
SuccessorModTime: oi.SuccessorModTime,
RestoreOngoing: oi.RestoreOngoing,
RestoreExpires: oi.RestoreExpires,
TransitionStatus: oi.TransitionedObject.Status,
}
}