-
Notifications
You must be signed in to change notification settings - Fork 387
/
endpoint_bucket.go
398 lines (341 loc) · 12.3 KB
/
endpoint_bucket.go
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
// Copyright (C) 2019 Storj Labs, Inc.
// See LICENSE for copying information.
package metainfo
import (
"context"
"fmt"
"time"
"go.uber.org/zap"
"storj.io/common/macaroon"
"storj.io/common/memory"
"storj.io/common/pb"
"storj.io/common/rpc/rpcstatus"
"storj.io/common/uuid"
"storj.io/storj/satellite/buckets"
"storj.io/storj/satellite/metabase"
)
// GetBucket returns a bucket.
func (endpoint *Endpoint) GetBucket(ctx context.Context, req *pb.BucketGetRequest) (resp *pb.BucketGetResponse, err error) {
defer mon.Task()(&ctx)(&err)
endpoint.versionCollector.collect(req.Header.UserAgent, mon.Func().ShortName())
keyInfo, err := endpoint.validateAuth(ctx, req.Header, macaroon.Action{
Op: macaroon.ActionRead,
Bucket: req.Name,
Time: time.Now(),
})
if err != nil {
return nil, err
}
endpoint.usageTracking(keyInfo, req.Header, fmt.Sprintf("%T", req))
bucket, err := endpoint.buckets.GetMinimalBucket(ctx, req.GetName(), keyInfo.ProjectID)
if err != nil {
if buckets.ErrBucketNotFound.Has(err) {
return nil, rpcstatus.Error(rpcstatus.NotFound, err.Error())
}
endpoint.log.Error("internal", zap.Error(err))
return nil, rpcstatus.Error(rpcstatus.Internal, err.Error())
}
// override RS to fit satellite settings
convBucket, err := convertMinimalBucketToProto(bucket, endpoint.defaultRS, endpoint.config.MaxSegmentSize)
if err != nil {
return resp, err
}
return &pb.BucketGetResponse{
Bucket: convBucket,
}, nil
}
// CreateBucket creates a new bucket.
func (endpoint *Endpoint) CreateBucket(ctx context.Context, req *pb.BucketCreateRequest) (resp *pb.BucketCreateResponse, err error) {
defer mon.Task()(&ctx)(&err)
endpoint.versionCollector.collect(req.Header.UserAgent, mon.Func().ShortName())
keyInfo, err := endpoint.validateAuth(ctx, req.Header, macaroon.Action{
Op: macaroon.ActionWrite,
Bucket: req.Name,
Time: time.Now(),
})
if err != nil {
return nil, err
}
endpoint.usageTracking(keyInfo, req.Header, fmt.Sprintf("%T", req))
err = endpoint.validateBucket(ctx, req.Name)
if err != nil {
return nil, rpcstatus.Error(rpcstatus.InvalidArgument, err.Error())
}
// checks if bucket exists before updates it or makes a new entry
exists, err := endpoint.buckets.HasBucket(ctx, req.GetName(), keyInfo.ProjectID)
if err != nil {
endpoint.log.Error("internal", zap.Error(err))
return nil, rpcstatus.Error(rpcstatus.Internal, err.Error())
} else if exists {
// When the bucket exists, try to set the attribution.
if err := endpoint.ensureAttribution(ctx, req.Header, keyInfo, req.GetName(), nil); err != nil {
return nil, err
}
return nil, rpcstatus.Error(rpcstatus.AlreadyExists, "bucket already exists")
}
project, err := endpoint.projects.Get(ctx, keyInfo.ProjectID)
if err != nil {
return nil, err
}
maxBuckets := project.MaxBuckets
if maxBuckets == nil {
defaultMaxBuckets := endpoint.config.ProjectLimits.MaxBuckets
maxBuckets = &defaultMaxBuckets
}
bucketCount, err := endpoint.buckets.CountBuckets(ctx, keyInfo.ProjectID)
if err != nil {
return nil, err
}
if bucketCount >= *maxBuckets {
return nil, rpcstatus.Error(rpcstatus.ResourceExhausted, fmt.Sprintf("number of allocated buckets (%d) exceeded", endpoint.config.ProjectLimits.MaxBuckets))
}
bucketReq, err := convertProtoToBucket(req, keyInfo.ProjectID)
if err != nil {
return nil, rpcstatus.Error(rpcstatus.InvalidArgument, err.Error())
}
bucketReq.Placement = project.DefaultPlacement
bucket, err := endpoint.buckets.CreateBucket(ctx, bucketReq)
if err != nil {
endpoint.log.Error("error while creating bucket", zap.String("bucketName", bucketReq.Name), zap.Error(err))
return nil, rpcstatus.Error(rpcstatus.Internal, "unable to create bucket")
}
// Once we have created the bucket, we can try setting the attribution.
if err := endpoint.ensureAttribution(ctx, req.Header, keyInfo, req.GetName(), project.UserAgent); err != nil {
return nil, err
}
// override RS to fit satellite settings
convBucket, err := convertMinimalBucketToProto(buckets.MinimalBucket{
Name: []byte(bucket.Name),
CreatedAt: bucket.Created,
}, endpoint.defaultRS, endpoint.config.MaxSegmentSize)
if err != nil {
endpoint.log.Error("error while converting bucket to proto", zap.String("bucketName", bucket.Name), zap.Error(err))
return nil, rpcstatus.Error(rpcstatus.Internal, "unable to create bucket")
}
return &pb.BucketCreateResponse{
Bucket: convBucket,
}, nil
}
// DeleteBucket deletes a bucket.
func (endpoint *Endpoint) DeleteBucket(ctx context.Context, req *pb.BucketDeleteRequest) (resp *pb.BucketDeleteResponse, err error) {
defer mon.Task()(&ctx)(&err)
endpoint.versionCollector.collect(req.Header.UserAgent, mon.Func().ShortName())
now := time.Now()
var canRead, canList bool
keyInfo, err := endpoint.validateAuthN(ctx, req.Header,
verifyPermission{
action: macaroon.Action{
Op: macaroon.ActionDelete,
Bucket: req.Name,
Time: now,
},
},
verifyPermission{
action: macaroon.Action{
Op: macaroon.ActionRead,
Bucket: req.Name,
Time: now,
},
actionPermitted: &canRead,
optional: true,
},
verifyPermission{
action: macaroon.Action{
Op: macaroon.ActionList,
Bucket: req.Name,
Time: now,
},
actionPermitted: &canList,
optional: true,
},
)
if err != nil {
return nil, err
}
endpoint.usageTracking(keyInfo, req.Header, fmt.Sprintf("%T", req))
err = endpoint.validateBucket(ctx, req.Name)
if err != nil {
return nil, rpcstatus.Error(rpcstatus.InvalidArgument, err.Error())
}
var (
bucket buckets.MinimalBucket
convBucket *pb.Bucket
)
if canRead || canList {
// Info about deleted bucket is returned only if either Read, or List permission is granted.
bucket, err = endpoint.buckets.GetMinimalBucket(ctx, req.Name, keyInfo.ProjectID)
if err != nil {
if buckets.ErrBucketNotFound.Has(err) {
return nil, rpcstatus.Error(rpcstatus.NotFound, err.Error())
}
return nil, err
}
convBucket, err = convertMinimalBucketToProto(bucket, endpoint.defaultRS, endpoint.config.MaxSegmentSize)
if err != nil {
return nil, err
}
}
err = endpoint.deleteBucket(ctx, req.Name, keyInfo.ProjectID)
if err != nil {
if !canRead && !canList {
// No error info is returned if neither Read, nor List permission is granted.
return &pb.BucketDeleteResponse{}, nil
}
if ErrBucketNotEmpty.Has(err) {
// List permission is required to delete all objects in a bucket.
if !req.GetDeleteAll() || !canList {
return nil, rpcstatus.Error(rpcstatus.FailedPrecondition, err.Error())
}
_, deletedObjCount, err := endpoint.deleteBucketNotEmpty(ctx, keyInfo.ProjectID, req.Name)
if err != nil {
return nil, err
}
return &pb.BucketDeleteResponse{Bucket: convBucket, DeletedObjectsCount: deletedObjCount}, nil
}
if buckets.ErrBucketNotFound.Has(err) {
return &pb.BucketDeleteResponse{Bucket: convBucket}, nil
}
endpoint.log.Error("internal", zap.Error(err))
return nil, rpcstatus.Error(rpcstatus.Internal, err.Error())
}
return &pb.BucketDeleteResponse{Bucket: convBucket}, nil
}
// deleteBucket deletes a bucket from the bucekts db.
func (endpoint *Endpoint) deleteBucket(ctx context.Context, bucketName []byte, projectID uuid.UUID) (err error) {
defer mon.Task()(&ctx)(&err)
empty, err := endpoint.isBucketEmpty(ctx, projectID, bucketName)
if err != nil {
return err
}
if !empty {
return ErrBucketNotEmpty.New("")
}
return endpoint.buckets.DeleteBucket(ctx, bucketName, projectID)
}
// isBucketEmpty returns whether bucket is empty.
func (endpoint *Endpoint) isBucketEmpty(ctx context.Context, projectID uuid.UUID, bucketName []byte) (bool, error) {
empty, err := endpoint.metabase.BucketEmpty(ctx, metabase.BucketEmpty{
ProjectID: projectID,
BucketName: string(bucketName),
})
return empty, Error.Wrap(err)
}
// deleteBucketNotEmpty deletes all objects from bucket and deletes this bucket.
// On success, it returns only the number of deleted objects.
func (endpoint *Endpoint) deleteBucketNotEmpty(ctx context.Context, projectID uuid.UUID, bucketName []byte) ([]byte, int64, error) {
deletedCount, err := endpoint.deleteBucketObjects(ctx, projectID, bucketName)
if err != nil {
endpoint.log.Error("internal", zap.Error(err))
return nil, 0, rpcstatus.Error(rpcstatus.Internal, err.Error())
}
err = endpoint.deleteBucket(ctx, bucketName, projectID)
if err != nil {
if ErrBucketNotEmpty.Has(err) {
return nil, deletedCount, rpcstatus.Error(rpcstatus.FailedPrecondition, "cannot delete the bucket because it's being used by another process")
}
if buckets.ErrBucketNotFound.Has(err) {
return bucketName, 0, nil
}
endpoint.log.Error("internal", zap.Error(err))
return nil, deletedCount, rpcstatus.Error(rpcstatus.Internal, err.Error())
}
return bucketName, deletedCount, nil
}
// deleteBucketObjects deletes all objects in a bucket.
func (endpoint *Endpoint) deleteBucketObjects(ctx context.Context, projectID uuid.UUID, bucketName []byte) (_ int64, err error) {
defer mon.Task()(&ctx)(&err)
bucketLocation := metabase.BucketLocation{ProjectID: projectID, BucketName: string(bucketName)}
deletedObjects, err := endpoint.metabase.DeleteBucketObjects(ctx, metabase.DeleteBucketObjects{
Bucket: bucketLocation,
})
return deletedObjects, Error.Wrap(err)
}
// ListBuckets returns buckets in a project where the bucket name matches the request cursor.
func (endpoint *Endpoint) ListBuckets(ctx context.Context, req *pb.BucketListRequest) (resp *pb.BucketListResponse, err error) {
defer mon.Task()(&ctx)(&err)
endpoint.versionCollector.collect(req.Header.UserAgent, mon.Func().ShortName())
action := macaroon.Action{
// TODO: This has to be ActionList, but it seems to be set to
// ActionRead as a hacky workaround to make bucket listing possible.
Op: macaroon.ActionRead,
Time: time.Now(),
}
keyInfo, err := endpoint.validateAuth(ctx, req.Header, action)
if err != nil {
return nil, err
}
endpoint.usageTracking(keyInfo, req.Header, fmt.Sprintf("%T", req))
allowedBuckets, err := getAllowedBuckets(ctx, req.Header, action)
if err != nil {
return nil, err
}
listOpts := buckets.ListOptions{
Cursor: string(req.Cursor),
Limit: int(req.Limit),
Direction: req.Direction,
}
bucketList, err := endpoint.buckets.ListBuckets(ctx, keyInfo.ProjectID, listOpts, allowedBuckets)
if err != nil {
return nil, err
}
bucketItems := make([]*pb.BucketListItem, len(bucketList.Items))
for i, item := range bucketList.Items {
bucketItems[i] = &pb.BucketListItem{
Name: []byte(item.Name),
CreatedAt: item.Created,
UserAgent: item.UserAgent,
}
}
return &pb.BucketListResponse{
Items: bucketItems,
More: bucketList.More,
}, nil
}
// CountBuckets returns the number of buckets a project currently has.
// TODO: add this to the uplink client side.
func (endpoint *Endpoint) CountBuckets(ctx context.Context, projectID uuid.UUID) (count int, err error) {
count, err = endpoint.buckets.CountBuckets(ctx, projectID)
if err != nil {
return 0, err
}
return count, nil
}
func getAllowedBuckets(ctx context.Context, header *pb.RequestHeader, action macaroon.Action) (_ macaroon.AllowedBuckets, err error) {
key, err := getAPIKey(ctx, header)
if err != nil {
return macaroon.AllowedBuckets{}, rpcstatus.Errorf(rpcstatus.InvalidArgument, "Invalid API credentials: %v", err)
}
allowedBuckets, err := key.GetAllowedBuckets(ctx, action)
if err != nil {
return macaroon.AllowedBuckets{}, rpcstatus.Errorf(rpcstatus.Internal, "GetAllowedBuckets: %v", err)
}
return allowedBuckets, err
}
func convertProtoToBucket(req *pb.BucketCreateRequest, projectID uuid.UUID) (bucket buckets.Bucket, err error) {
bucketID, err := uuid.New()
if err != nil {
return buckets.Bucket{}, err
}
return buckets.Bucket{
ID: bucketID,
Name: string(req.GetName()),
ProjectID: projectID,
}, nil
}
func convertMinimalBucketToProto(bucket buckets.MinimalBucket, rs *pb.RedundancyScheme, maxSegmentSize memory.Size) (pbBucket *pb.Bucket, err error) {
if len(bucket.Name) == 0 {
return nil, nil
}
return &pb.Bucket{
Name: bucket.Name,
CreatedAt: bucket.CreatedAt,
// default satellite values
PathCipher: pb.CipherSuite_ENC_AESGCM,
DefaultSegmentSize: maxSegmentSize.Int64(),
DefaultRedundancyScheme: rs,
DefaultEncryptionParameters: &pb.EncryptionParameters{
CipherSuite: pb.CipherSuite_ENC_AESGCM,
BlockSize: int64(rs.ErasureShareSize * rs.MinReq),
},
}, nil
}