Repository navigation
Expand file tree
/
Copy pathadmin-handlers.go
More file actions
1639 lines (1412 loc) · 46.4 KB
/
Copy pathadmin-handlers.go
File metadata and controls
1639 lines (1412 loc) · 46.4 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
55
8000
7
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
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* MinIO Cloud Storage, (C) 2016-2020 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import (
"context"
"crypto/subtle"
"crypto/tls"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"net/url"
"os"
"path"
"runtime"
"sort"
"strconv"
"strings"
"time"
"github.com/gorilla/mux"
"github.com/minio/minio/cmd/config"
"github.com/minio/minio/cmd/config/notify"
"github.com/minio/minio/cmd/crypto"
xhttp "github.com/minio/minio/cmd/http"
"github.com/minio/minio/cmd/logger"
"github.com/minio/minio/cmd/logger/message/log"
"github.com/minio/minio/pkg/auth"
"github.com/minio/minio/pkg/handlers"
iampolicy "github.com/minio/minio/pkg/iam/policy"
"github.com/minio/minio/pkg/madmin"
xnet "github.com/minio/minio/pkg/net"
trace "github.com/minio/minio/pkg/trace"
)
const (
maxEConfigJSONSize = 262272
)
// Type-safe query params.
type mgmtQueryKey string
// Only valid query params for mgmt admin APIs.
const (
mgmtBucket mgmtQueryKey = "bucket"
mgmtPrefix = "prefix"
mgmtClientToken = "clientToken"
mgmtForceStart = "forceStart"
mgmtForceStop = "forceStop"
)
func updateServer(updateURL, sha256Hex string, latestReleaseTime time.Time) (us madmin.ServerUpdateStatus, err error) {
minioMode := getMinioMode()
// No inputs provided we should try to update using the default URL.
if updateURL == "" && sha256Hex == "" && latestReleaseTime.IsZero() {
var updateMsg string
updateMsg, sha256Hex, _, latestReleaseTime, err = getUpdateInfo(updateTimeout, minioMode)
if err != nil {
return us, err
}
if updateMsg == "" {
us.CurrentVersion = Version
us.UpdatedVersion = Version
return us, nil
}
if runtime.GOOS == "windows" {
updateURL = minioReleaseURL + "minio.exe"
} else {
updateURL = minioReleaseURL + "minio"
}
}
if err = doUpdate(updateURL, sha256Hex, minioMode); err != nil {
return us, err
}
us.CurrentVersion = Version
us.UpdatedVersion = latestReleaseTime.Format(minioReleaseTagTimeLayout)
return us, nil
}
// ServerUpdateHandler - POST /minio/admin/v3/update?updateURL={updateURL}
// ----------
// updates all minio servers and restarts them gracefully.
func (a adminAPIHandlers) ServerUpdateHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "ServerUpdate")
defer logger.AuditLog(w, r, "ServerUpdate", mustGetClaimsFromToken(r))
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.ServerUpdateAdminAction)
if objectAPI == nil {
return
}
if globalInplaceUpdateDisabled {
// if MINIO_UPDATE=off - inplace update is disabled, mostly
// in containers.
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrMethodNotAllowed), r.URL)
return
}
vars := mux.Vars(r)
updateURL := vars[peerRESTUpdateURL]
mode := getMinioMode()
var sha256Hex string
var latestReleaseTime time.Time
if updateURL != "" {
u, err := url.Parse(updateURL)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
content, err := downloadReleaseURL(updateURL, updateTimeout, mode)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
sha256Hex, latestReleaseTime, err = parseReleaseData(content)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
if runtime.GOOS == "windows" {
u.Path = path.Dir(u.Path) + SlashSeparator + "minio.exe"
} else {
u.Path = path.Dir(u.Path) + SlashSeparator + "minio"
}
updateURL = u.String()
}
for _, nerr := range globalNotificationSys.ServerUpdate(updateURL, sha256Hex, latestReleaseTime) {
if nerr.Err != nil {
logger.GetReqInfo(ctx).SetTags("peerAddress", nerr.Host.String())
logger.LogIf(ctx, nerr.Err)
}
}
updateStatus, err := updateServer(updateURL, sha256Hex, latestReleaseTime)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
// Marshal API response
jsonBytes, err := json.Marshal(updateStatus)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
writeSuccessResponseJSON(w, jsonBytes)
if updateStatus.CurrentVersion != updateStatus.UpdatedVersion {
// We did upgrade - restart all services.
globalServiceSignalCh <- serviceRestart
}
}
// ServiceHandler - POST /minio/admin/v3/service?action={action}
// ----------
// restarts/stops minio server gracefully. In a distributed setup,
func (a adminAPIHandlers) ServiceHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "Service")
defer logger.AuditLog(w, r, "Service", mustGetClaimsFromToken(r))
vars := mux.Vars(r)
action := vars["action"]
var serviceSig serviceSignal
switch madmin.ServiceAction(action) {
case madmin.ServiceActionRestart:
serviceSig = serviceRestart
case madmin.ServiceActionStop:
serviceSig = serviceStop
default:
logger.LogIf(ctx, fmt.Errorf("Unrecognized service action %s requested", action), logger.Application)
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrMalformedPOSTRequest), r.URL)
return
}
var objectAPI ObjectLayer
if serviceSig == serviceRestart {
objectAPI, _ = validateAdminReq(ctx, w, r, iampolicy.ServiceRestartAdminAction)
} else {
objectAPI, _ = validateAdminReq(ctx, w, r, iampolicy.ServiceStopAdminAction)
}
if objectAPI == nil {
return
}
// Notify all other MinIO peers signal service.
for _, nerr := range globalNotificationSys.SignalService(serviceSig) {
if nerr.Err != nil {
logger.GetReqInfo(ctx).SetTags("peerAddress", nerr.Host.String())
logger.LogIf(ctx, nerr.Err)
}
}
// Reply to the client before restarting, stopping MinIO server.
writeSuccessResponseHeadersOnly(w)
globalServiceSignalCh <- serviceSig
}
// ServerProperties holds some server information such as, version, region
// uptime, etc..
type ServerProperties struct {
Uptime int64 `json:"uptime"`
Version string `json:"version"`
CommitID string `json:"commitID"`
DeploymentID string `json:"deploymentID"`
Region string `json:"region"`
SQSARN []string `json:"sqsARN"`
}
// ServerConnStats holds transferred bytes from/to the server
type ServerConnStats struct {
TotalInputBytes uint64 `json:"transferred"`
TotalOutputBytes uint64 `json:"received"`
Throughput uint64 `json:"throughput,omitempty"`
S3InputBytes uint64 `json:"transferredS3"`
S3OutputBytes uint64 `json:"receivedS3"`
}
// ServerHTTPAPIStats holds total number of HTTP operations from/to the server,
// including the average duration the call was spent.
type ServerHTTPAPIStats struct {
APIStats map[string]int `json:"apiStats"`
}
// ServerHTTPStats holds all type of http operations performed to/from the server
// including their average execution time.
type ServerHTTPStats struct {
CurrentS3Requests ServerHTTPAPIStats `json:"currentS3Requests"`
TotalS3Requests ServerHTTPAPIStats `json:"totalS3Requests"`
TotalS3Errors ServerHTTPAPIStats `json:"totalS3Errors"`
}
// ServerInfoData holds storage, connections and other
// information of a given server.
type ServerInfoData struct {
ConnStats ServerConnStats `json:"network"`
HTTPStats ServerHTTPStats `json:"http"`
Properties ServerProperties `json:"server"`
}
// ServerInfo holds server information result of one node
type ServerInfo struct {
Error string `json:"error"`
Addr string `json:"addr"`
Data *ServerInfoData `json:"data"`
}
// StorageInfoHandler - GET /minio/admin/v3/storageinfo
// ----------
// Get server information
func (a adminAPIHandlers) StorageInfoHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "StorageInfo")
defer logger.AuditLog(w, r, "StorageInfo", mustGetClaimsFromToken(r))
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.StorageInfoAdminAction)
if objectAPI == nil {
return
}
// ignores any errors here.
storageInfo, _ := objectAPI.StorageInfo(ctx, false)
// Marshal API response
jsonBytes, err := json.Marshal(storageInfo)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
// Reply with storage information (across nodes in a
// distributed setup) as json.
writeSuccessResponseJSON(w, jsonBytes)
}
// DataUsageInfoHandler - GET /minio/admin/v3/datausage
// ----------
// Get server/cluster data usage info
func (a adminAPIHandlers) DataUsageInfoHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "DataUsageInfo")
defer logger.AuditLog(w, r, "DataUsageInfo", mustGetClaimsFromToken(r))
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.DataUsageInfoAdminAction)
if objectAPI == nil {
return
}
dataUsageInfo, err := loadDataUsageFromBackend(ctx, objectAPI)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
dataUsageInfoJSON, err := json.Marshal(dataUsageInfo)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
writeSuccessResponseJSON(w, dataUsageInfoJSON)
}
func lriToLockEntry(l lockRequesterInfo, resource, server string) *madmin.LockEntry {
entry := &madmin.LockEntry{
Timestamp: l.Timestamp,
Resource: resource,
ServerList: []string{server},
Source: l.Source,
ID: l.UID,
}
if l.Writer {
entry.Type = "WRITE"
} else {
entry.Type = "READ"
}
return entry
}
func topLockEntries(peerLocks []*PeerLocks, count int) madmin.LockEntries {
entryMap := make(map[string]*madmin.LockEntry)
for _, peerLock := range peerLocks {
if peerLock == nil {
continue
}
for _, locks := range peerLock.Locks {
for k, v := range locks {
for _, lockReqInfo := range v {
if val, ok := entryMap[lockReqInfo.UID]; ok {
val.ServerList = append(val.ServerList, peerLock.Addr)
} else {
entryMap[lockReqInfo.UID] = lriToLockEntry(lockReqInfo, k, peerLock.Addr)
}
}
}
}
}
var lockEntries = make(madmin.LockEntries, 0, len(entryMap))
for _, v := range entryMap {
lockEntries = append(lockEntries, *v)
}
sort.Sort(lockEntries)
if len(lockEntries) > count {
lockEntries = lockEntries[:count]
}
return lockEntries
}
// PeerLocks holds server information result of one node
type PeerLocks struct {
Addr string
Locks GetLocksResp
}
// TopLocksHandler Get list of locks in use
func (a adminAPIHandlers) TopLocksHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "TopLocks")
defer logger.AuditLog(w, r, "TopLocks", mustGetClaimsFromToken(r))
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.TopLocksAdminAction)
if objectAPI == nil {
return
}
count := 10 // by default list only top 10 entries
if countStr := r.URL.Query().Get("count"); countStr != "" {
var err error
count, err = strconv.Atoi(countStr)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
}
peerLocks := globalNotificationSys.GetLocks(ctx)
// Once we have received all the locks currently used from peers
// add the local peer locks list as well.
var getRespLocks GetLocksResp
for _, llocker := range globalLockServers {
getRespLocks = append(getRespLocks, llocker.DupLockMap())
}
peerLocks = append(peerLocks, &PeerLocks{
Addr: getHostName(r),
Locks: getRespLocks,
})
topLocks := topLockEntries(peerLocks, count)
// Marshal API response
jsonBytes, err := json.Marshal(topLocks)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
// Reply with storage information (across nodes in a
// distributed setup) as json.
writeSuccessResponseJSON(w, jsonBytes)
}
// StartProfilingResult contains the status of the starting
// profiling action in a given server
type StartProfilingResult struct {
NodeName string `json:"nodeName"`
Success bool `json:"success"`
Error string `json:"error"`
}
// StartProfilingHandler - POST /minio/admin/v3/profiling/start?profilerType={profilerType}
// ----------
// Enable server profiling
func (a adminAPIHandlers) StartProfilingHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "StartProfiling")
defer logger.AuditLog(w, r, "StartProfiling", mustGetClaimsFromToken(r))
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.ProfilingAdminAction)
if objectAPI == nil {
return
}
vars := mux.Vars(r)
profiles := strings.Split(vars["profilerType"], ",")
thisAddr, err := xnet.ParseHost(GetLocalPeer(globalEndpoints))
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
globalProfilerMu.Lock()
defer globalProfilerMu.Unlock()
if globalProfiler == nil {
globalProfiler = make(map[string]minioProfiler, 10)
}
// Stop profiler of all types if already running
for k, v := range globalProfiler {
for _, p := range profiles {
if p == k {
v.Stop()
delete(globalProfiler, k)
}
}
}
// Start profiling on remote servers.
var hostErrs []NotificationPeerErr
for _, profiler := range profiles {
hostErrs = append(hostErrs, globalNotificationSys.StartProfiling(profiler)...)
// Start profiling locally as well.
prof, err := startProfiler(profiler)
if err != nil {
hostErrs = append(hostErrs, NotificationPeerErr{
Host: *thisAddr,
Err: err,
})
} else {
globalProfiler[profiler] = prof
hostErrs = append(hostErrs, NotificationPeerErr{
Host: *thisAddr,
})
}
}
var startProfilingResult []StartProfilingResult
for _, nerr := range hostErrs {
result := StartProfilingResult{NodeName: nerr.Host.String()}
if nerr.Err != nil {
result.Error = nerr.Err.Error()
} else {
result.Success = true
}
startProfilingResult = append(startProfilingResult, result)
}
// Create JSON result and send it to the client
startProfilingResultInBytes, err := json.Marshal(startProfilingResult)
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
writeSuccessResponseJSON(w, startProfilingResultInBytes)
}
// dummyFileInfo represents a dummy representation of a profile data file
// present only in memory, it helps to generate the zip stream.
type dummyFileInfo struct {
name string
size int64
mode os.FileMode
modTime time.Time
isDir bool
sys interface{}
}
func (f dummyFileInfo) Name() string { return f.name }
func (f dummyFileInfo) Size() int64 { return f.size }
func (f dummyFileInfo) Mode() os.FileMode { return f.mode }
func (f dummyFileInfo) ModTime() time.Time { return f.modTime }
func (f dummyFileInfo) IsDir() bool { return f.isDir }
func (f dummyFileInfo) Sys() interface{} { return f.sys }
// DownloadProfilingHandler - POST /minio/admin/v3/profiling/download
// ----------
// Download profiling information of all nodes in a zip format
func (a adminAPIHandlers) DownloadProfilingHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "DownloadProfiling")
defer logger.AuditLog(w, r, "DownloadProfiling", mustGetClaimsFromToken(r))
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.ProfilingAdminAction)
if objectAPI == nil {
return
}
if !globalNotificationSys.DownloadProfilingData(ctx, w) {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrAdminProfilerNotEnabled), r.URL)
return
}
}
type healInitParams struct {
bucket, objPrefix string
hs madmin.HealOpts
clientToken string
forceStart, forceStop bool
}
// extractHealInitParams - Validates params for heal init API.
func extractHealInitParams(vars map[string]string, qParms url.Values, r io.Reader) (hip healInitParams, err APIErrorCode) {
hip.bucket = vars[string(mgmtBucket)]
hip.objPrefix = vars[string(mgmtPrefix)]
if hip.bucket == "" {
if hip.objPrefix != "" {
// Bucket is required if object-prefix is given
err = ErrHealMissingBucket
return
}
} else if isReservedOrInvalidBucket(hip.bucket, false) {
err = ErrInvalidBucketName
return
}
// empty prefix is valid.
if !IsValidObjectPrefix(hip.objPrefix) {
err = ErrInvalidObjectName
return
}
if len(qParms[string(mgmtClientToken)]) > 0 {
hip.clientToken = qParms[string(mgmtClientToken)][0]
}
if _, ok := qParms[string(mgmtForceStart)]; ok {
hip.forceStart = true
}
if _, ok := qParms[string(mgmtForceStop)]; ok {
hip.forceStop = true
}
// Invalid request conditions:
//
// Cannot have both forceStart and forceStop in the same
// request; If clientToken is provided, request can only be
// to continue receiving logs, so it cannot be start or
// stop;
if (hip.forceStart && hip.forceStop) ||
(hip.clientToken != "" && (hip.forceStart || hip.forceStop)) {
err = ErrInvalidRequest
return
}
// ignore body if clientToken is provided
if hip.clientToken == "" {
jerr := json.NewDecoder(r).Decode(&hip.hs)
if jerr != nil {
logger.LogIf(GlobalContext, jerr, logger.Application)
err = ErrRequestBodyParse
return
}
}
err = ErrNone
return
}
// HealHandler - POST /minio/admin/v3/heal/
// -----------
// Start heal processing and return heal status items.
//
// On a successful heal sequence start, a unique client token is
// returned. Subsequent requests to this endpoint providing the client
// token will receive heal status records from the running heal
// sequence.
//
// If no client token is provided, and a heal sequence is in progress
// an error is returned with information about the running heal
// sequence. However, if the force-start flag is provided, the server
// aborts the running heal sequence and starts a new one.
func (a adminAPIHandlers) HealHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "Heal")
defer logger.AuditLog(w, r, "Heal", mustGetClaimsFromToken(r))
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.HealAdminAction)
if objectAPI == nil {
return
}
// Check if this setup has an erasure coded backend.
if !globalIsErasure {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrHealNotImplemented), r.URL)
return
}
hip, errCode := extractHealInitParams(mux.Vars(r), r.URL.Query(), r.Body)
if errCode != ErrNone {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(errCode), r.URL)
return
}
// Analyze the heal token and route the request accordingly
token, success := proxyRequestByToken(ctx, w, r, hip.clientToken)
if success {
return
}
hip.clientToken = token
// if request was not successful, try this server locally if token
// is not found the call will fail anyways. if token is empty
// try this server to generate a new token.
type healResp struct {
respBytes []byte
apiErr APIError
errBody string
}
// Define a closure to start sending whitespace to client
// after 10s unless a response item comes in
keepConnLive := func(w http.ResponseWriter, r *http.Request, respCh chan healResp) {
ticker := time.NewTicker(time.Second * 10)
defer ticker.Stop()
started := false
forLoop:
for {
select {
case <-r.Context().Done():
return
case <-ticker.C:
if !started {
// Start writing response to client
started = true
setCommonHeaders(w)
w.Header().Set(xhttp.ContentType, "text/event-stream")
// Set 200 OK status
w.WriteHeader(200)
}
// Send whitespace and keep connection open
w.Write([]byte(" "))
w.(http.Flusher).Flush()
case hr := <-respCh:
switch hr.apiErr {
case noError:
if started {
w.Write(hr.respBytes)
w.(http.Flusher).Flush()
} else {
writeSuccessResponseJSON(w, hr.respBytes)
}
default:
var errorRespJSON []byte
if hr.errBody == "" {
errorRespJSON = encodeResponseJSON(getAPIErrorResponse(ctx, hr.apiErr,
r.URL.Path, w.Header().Get(xhttp.AmzRequestID),
globalDeploymentID))
} else {
errorRespJSON = encodeResponseJSON(APIErrorResponse{
Code: hr.apiErr.Code,
Message: hr.errBody,
Resource: r.URL.Path,
RequestID: w.Header().Get(xhttp.AmzRequestID),
HostID: globalDeploymentID,
})
}
if !started {
setCommonHeaders(w)
w.Header().Set(xhttp.ContentType, string(mimeJSON))
w.WriteHeader(hr.apiErr.HTTPStatusCode)
}
w.Write(errorRespJSON)
w.(http.Flusher).Flush()
}
break forLoop
}
}
}
healPath := pathJoin(hip.bucket, hip.objPrefix)
if hip.clientToken == "" && !hip.forceStart && !hip.forceStop {
nh, exists := globalAllHealState.getHealSequence(healPath)
if exists && !nh.hasEnded() && len(nh.currentStatus.Items) > 0 {
clientToken := nh.clientToken
if globalIsDistErasure {
clientToken = fmt.Sprintf("%s@%d", nh.clientToken, GetProxyEndpointLocalIndex(globalProxyEndpoints))
}
b, err := json.Marshal(madmin.HealStartSuccess{
ClientToken: clientToken,
ClientAddress: nh.clientAddress,
StartTime: nh.startTime,
})
if err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
// Client token not specified but a heal sequence exists on a path,
// Send the token back to client.
writeSuccessResponseJSON(w, b)
return
}
}
if hip.clientToken != "" && !hip.forceStart && !hip.forceStop {
// Since clientToken is given, fetch heal status from running
// heal sequence.
respBytes, errCode := globalAllHealState.PopHealStatusJSON(
healPath, hip.clientToken)
if errCode != ErrNone {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(errCode), r.URL)
} else {
writeSuccessResponseJSON(w, respBytes)
}
return
}
respCh := make(chan healResp)
switch {
case hip.forceStop:
go func() {
respBytes, apiErr := globalAllHealState.stopHealSequence(healPath)
hr := healResp{respBytes: respBytes, apiErr: apiErr}
respCh <- hr
}()
case hip.clientToken == "":
nh := newHealSequence(GlobalContext, hip.bucket, hip.objPrefix, handlers.GetSourceIP(r), hip.hs, hip.forceStart)
go func() {
respBytes, apiErr, errMsg := globalAllHealState.LaunchNewHealSequence(nh)
hr := healResp{respBytes, apiErr, errMsg}
respCh <- hr
}()
}
// Due to the force-starting functionality, the Launch
// call above can take a long time - to keep the
// connection alive, we start sending whitespace
keepConnLive(w, r, respCh)
}
func (a adminAPIHandlers) BackgroundHealStatusHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "HealBackgroundStatus")
defer logger.AuditLog(w, r, "HealBackgroundStatus", mustGetClaimsFromToken(r))
objectAPI, _ := validateAdminReq(ctx, w, r, iampolicy.HealAdminAction)
if objectAPI == nil {
return
}
// Check if this setup has an erasure coded backend.
if !globalIsErasure {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrHealNotImplemented), r.URL)
return
}
var bgHealStates []madmin.BgHealState
// Get local heal status first
bgHealStates = append(bgHealStates, getLocalBackgroundHealStatus())
if globalIsDistErasure {
// Get heal status from other peers
peersHealStates := globalNotificationSys.BackgroundHealStatus()
bgHealStates = append(bgHealStates, peersHealStates...)
}
// Aggregate healing result
var aggregatedHealStateResult = madmin.BgHealState{
ScannedItemsCount: bgHealStates[0].ScannedItemsCount,
LastHealActivity: bgHealStates[0].LastHealActivity,
NextHealRound: bgHealStates[0].NextHealRound,
}
bgHealStates = bgHealStates[1:]
for _, state := range bgHealStates {
aggregatedHealStateResult.ScannedItemsCount += state.ScannedItemsCount
if !state.LastHealActivity.IsZero() && aggregatedHealStateResult.LastHealActivity.Before(state.LastHealActivity) {
aggregatedHealStateResult.LastHealActivity = state.LastHealActivity
// The node which has the last heal activity means its
// is the node that is orchestrating self healing operations,
// which also means it is the same node which decides when
// the next self healing operation will be done.
aggregatedHealStateResult.NextHealRound = state.NextHealRound
}
}
if err := json.NewEncoder(w).Encode(aggregatedHealStateResult); err != nil {
writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
return
}
w.(http.Flusher).Flush()
}
func validateAdminReq(ctx context.Context, w http.ResponseWriter, r *http.Request, action iampolicy.AdminAction) (ObjectLayer, auth.Credentials) {
var cred auth.Credentials
var adminAPIErr APIErrorCode
// Get current object layer instance.
objectAPI := newObjectLayerWithoutSafeModeFn()
if objectAPI == nil || globalNotificationSys == nil {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrServerNotInitialized), r.URL)
return nil, cred
}
// Validate request signature.
cred, adminAPIErr = checkAdminRequestAuthType(ctx, r, action, "")
if adminAPIErr != ErrNone {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(adminAPIErr), r.URL)
return nil, cred
}
return objectAPI, cred
}
// AdminError - is a generic error for all admin APIs.
type AdminError struct {
Code string
Message string
StatusCode int
}
func (ae AdminError) Error() string {
return ae.Message
}
// Admin API errors
const (
AdminUpdateUnexpectedFailure = "XMinioAdminUpdateUnexpectedFailure"
AdminUpdateURLNotReachable = "XMinioAdminUpdateURLNotReachable"
AdminUpdateApplyFailure = "XMinioAdminUpdateApplyFailure"
)
// toAdminAPIErrCode - converts errErasureWriteQuorum error to admin API
// specific error.
func toAdminAPIErrCode(ctx context.Context, err error) APIErrorCode {
switch err {
case errErasureWriteQuorum:
return ErrAdminConfigNoQuorum
default:
return toAPIErrorCode(ctx, err)
}
}
func toAdminAPIErr(ctx context.Context, err error) APIError {
if err == nil {
return noError
}
var apiErr APIError
switch e := err.(type) {
case iampolicy.Error:
apiErr = APIError{
Code: "XMinioMalformedIAMPolicy",
Description: e.Error(),
HTTPStatusCode: http.StatusBadRequest,
}
case config.Error:
apiErr = APIError{
Code: "XMinioConfigError",
Description: e.Error(),
HTTPStatusCode: http.StatusBadRequest,
}
case AdminError:
apiErr = APIError{
Code: e.Code,
Description: e.Message,
HTTPStatusCode: e.StatusCode,
}
default:
switch {
case errors.Is(err, errConfigNotFound):
apiErr = APIError{
Code: "XMinioConfigError",
Description: err.Error(),
HTTPStatusCode: http.StatusNotFound,
}
case errors.Is(err, errIAMActionNotAllowed):
apiErr = APIError{
Code: "XMinioIAMActionNotAllowed",
Description: err.Error(),
HTTPStatusCode: http.StatusForbidden,
}
case errors.Is(err, errIAMNotInitialized):
apiErr = APIError{
Code: "XMinioIAMNotInitialized",
Description: err.Error(),
HTTPStatusCode: http.StatusServiceUnavailable,
}
case errors.Is(err, crypto.ErrKESKeyExists):
apiErr = APIError{
Code: "XMinioKMSKeyExists",
Description: err.Error(),
HTTPStatusCode: http.StatusConflict,
}
default:
apiErr = errorCodes.ToAPIErrWithErr(toAdminAPIErrCode(ctx, err), err)
}
}
return apiErr
}
// Returns true if the trace.Info should be traced,
// false if certain conditions are not met.
// - input entry is not of the type *trace.Info*
// - errOnly entries are to be traced, not status code 2xx, 3xx.
// - all entries to be traced, if not trace only S3 API requests.
func mustTrace(entry interface{}, trcAll, errOnly bool) bool {
trcInfo, ok := entry.(trace.Info)
if !ok {
return false
}
trace := trcAll || !HasPrefix(trcInfo.ReqInfo.Path, minioReservedBucketPath+SlashSeparator)
if errOnly {
return trace && trcInfo.RespInfo.StatusCode >= http.StatusBadRequest
}
return trace
}
// TraceHandler - POST /minio/admin/v3/trace
// ----------
// The handler sends http trace to the connected HTTP client.
func (a adminAPIHandlers) TraceHandler(w http.ResponseWriter, r *http.Request) {
ctx := newContext(r, w, "HTTPTrace")
trcAll := r.URL.Query().Get("all") == "true"
trcErr := r.URL.Query().Get("err") == "true"
// Validate request signature.
_, adminAPIErr := checkAdminRequestAuthType(ctx, r, iampolicy.TraceAdminAction, "")
if adminAPIErr != ErrNone {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(adminAPIErr), r.URL)
return
}
w.Header().Set(xhttp.ContentType, "text/event-stream")
// Trace Publisher and peer-trace-client uses nonblocking send and hence does not wait for slow receivers.
// Use buffered channel to take care of burst sends or slow w.Write()
traceCh := make(chan interface{}, 4000)
peers := newPeerRestClients(globalEndpoints)
globalHTTPTrace.Subscribe(traceCh, ctx.Done(), func(entry interface{}) bool {
return mustTrace(entry, trcAll, trcErr)
})
for _, peer := range peers {
if peer == nil {