forked from minio/minio-go
-
Notifications
You must be signed in to change notification settings - Fork 3
/
api-multipart-object.go
419 lines (371 loc) · 12.7 KB
/
api-multipart-object.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
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
/* trinet
* support multipart sdk:
* - support breakpoint transfer;
* - support update the uploaded part;
* - support for reading uploaded part;
* - support for merging parts on completion.
*/
package ossClient
import (
"bytes"
"context"
"encoding/base64"
"encoding/xml"
"errors"
"fmt"
"github.com/trinet2005/oss-go-sdk/pkg/s3utils"
"hash"
"hash/crc32"
"io"
"net/http"
"net/url"
"sort"
"strconv"
)
type MultipartUploader struct {
BucketName string
ObjectName string
UploadID string
c *Client
opts *PutObjectOptions
partsInfo map[int]ObjectPart
buf []byte
// Create checksums
// CRC32C is ~50% faster on AMD64 @ 30GB/s
crcBytes map[int][]byte
crc hash.Hash32
eof bool // The sequential upload has been completed, now can UpdatePart or CompleteMultipartUpload
completed bool
}
// getUploadID - fetch upload id if already present for an object name
// or initiate a new request to fetch a new upload id.
func (c *Client) NewUploadID(ctx context.Context, bucketName, objectName string, opts *PutObjectOptions) (*MultipartUploader, error) {
if opts.DisableMultipart {
return nil, errors.New("multipart disabled")
}
var objectSize int64 = -1
//if objectSize == 0 {
// return nil, errors.New("objectSize is illegal")
//}
//if objectSize < 0 {
// objectSize = -1
//}
_, _, _, err := OptimalPartInfo(objectSize, opts.PartSize)
if err != nil {
return nil, err
}
if !opts.SendContentMd5 {
if opts.UserMetadata == nil {
opts.UserMetadata = make(map[string]string, 1)
}
opts.UserMetadata["X-Amz-Checksum-Algorithm"] = "CRC32C"
}
// Input validation.
if err = s3utils.CheckValidBucketName(bucketName); err != nil {
return nil, err
}
if err = s3utils.CheckValidObjectName(objectName); err != nil {
return nil, err
}
// Initiate multipart upload for an object.
initMultipartUploadResult, err := c.initiateMultipartUpload(ctx, bucketName, objectName, *opts)
if err != nil {
return nil, err
}
delete(opts.UserMetadata, "X-Amz-Checksum-Algorithm")
return &MultipartUploader{
BucketName: bucketName,
ObjectName: objectName,
UploadID: initMultipartUploadResult.UploadID,
c: c,
opts: opts,
partsInfo: make(map[int]ObjectPart), // Initialize parts uploaded map
buf: make([]byte, opts.PartSize), // Create a buffer
crcBytes: make(map[int][]byte),
crc: crc32.New(crc32.MakeTable(crc32.Castagnoli)),
}, nil
}
func (m *MultipartUploader) uploadPart(ctx context.Context, buf []byte, length, partNumber int) error {
var md5Base64 string
customHeader := make(http.Header)
if m.opts.SendContentMd5 {
// Calculate md5sum.
hash := m.c.md5Hasher()
hash.Write(buf[:length])
md5Base64 = base64.StdEncoding.EncodeToString(hash.Sum(nil))
hash.Close()
} else {
m.crc.Reset()
m.crc.Write(buf[:length])
cSum := m.crc.Sum(nil)
customHeader.Set("x-amz-checksum-crc32c", base64.StdEncoding.EncodeToString(cSum))
m.crcBytes[partNumber] = cSum
}
// Update progress reader appropriately to the latest offset
// as we read from the source.
rd := newHook(bytes.NewReader(buf[:length]), m.opts.Progress)
// Proceed to upload the part.
p := uploadPartParams{bucketName: m.BucketName, objectName: m.ObjectName, uploadID: m.UploadID,
reader: rd, partNumber: partNumber, md5Base64: md5Base64,
size: int64(length), sse: m.opts.ServerSideEncryption, streamSha256: !m.opts.DisableContentSha256,
customHeader: customHeader}
objPart, err := m.c.uploadPart(ctx, p)
if err != nil {
return err
}
// Save successfully uploaded part metadata.
m.partsInfo[partNumber] = objPart
return nil
}
// UploadPart - Uploads a part in a multipart upload.
func (m *MultipartUploader) UploadPart(ctx context.Context, data io.Reader, partNumber int) error {
length, rerr := readFull(data, m.buf)
// For unknown size, Read EOF we break away.
// We do not have to upload till totalPartsCount.
if rerr == io.EOF {
m.eof = true
return io.EOF
}
if rerr != nil && rerr != io.ErrUnexpectedEOF && rerr != io.EOF {
return rerr
}
return m.uploadPart(ctx, m.buf, length, partNumber)
}
// UpdatePart - Update the uploaded part.
func (m *MultipartUploader) UpdatePart(ctx context.Context, data io.Reader, partNumber int, configuredPartSize int) error {
if m.completed {
return errors.New("upload is completed")
}
if partNumber < len(m.partsInfo) {
if configuredPartSize < absMinPartSize {
return errInvalidArgument("Input part size is smaller than allowed minimum of 5MiB.")
}
if configuredPartSize > maxPartSize {
return errInvalidArgument("Input part size is bigger than allowed maximum of 5GiB.")
}
} else if partNumber > len(m.partsInfo) {
return errors.New("partNumber is illegal")
}
buf := make([]byte, configuredPartSize)
length, rerr := readFull(data, buf)
if length != configuredPartSize {
return errors.New(fmt.Sprintf("read %d bytes from data is smaller than %d", length, configuredPartSize))
}
if rerr != nil && rerr != io.ErrUnexpectedEOF && rerr != io.EOF {
return rerr
}
return m.uploadPart(ctx, buf, length, partNumber)
}
func (m *MultipartUploader) GetPart(ctx context.Context, partNumber int) (io.ReadCloser, ObjectInfo, error) {
return m.getPart(ctx, partNumber, GetObjectOptions{})
}
func (m *MultipartUploader) getPart(ctx context.Context, partNumber int, opts GetObjectOptions) (io.ReadCloser, ObjectInfo, error) {
if m.completed {
return nil, ObjectInfo{}, errors.New("upload is completed")
}
if partNumber > len(m.partsInfo) {
return nil, ObjectInfo{}, errors.New("partNumber is illegal")
}
urlValues := make(url.Values)
urlValues.Set("partNumber", strconv.Itoa(partNumber))
urlValues.Set("uploadingID", m.UploadID)
// Execute GET on objectName.
resp, err := m.c.executeMethod(ctx, http.MethodGet, requestMetadata{
bucketName: m.BucketName,
objectName: m.ObjectName,
queryValues: urlValues,
customHeader: opts.Header(),
contentSHA256Hex: emptySHA256Hex,
})
if err != nil {
return nil, ObjectInfo{}, err
}
if resp != nil {
if resp.StatusCode != http.StatusOK && resp.StatusCode != http.StatusPartialContent {
return nil, ObjectInfo{}, errors.New(fmt.Sprintf("http request %s", resp.Status))
}
}
objectStat, err := ToObjectInfo(m.BucketName, m.ObjectName, resp.Header)
if err != nil {
closeResponse(resp)
return nil, ObjectInfo{}, err
}
return resp.Body, objectStat, nil
}
// CompleteMultipartUpload - Completes a multipart upload by assembling previously uploaded parts.
func (m *MultipartUploader) CompleteMultipartUpload(ctx context.Context) (UploadInfo, error) {
if !m.eof {
return UploadInfo{}, errors.New("UploadPart doesn't end")
}
if m.completed {
return UploadInfo{}, errors.New("upload is completed")
}
m.completed = true
// Complete multipart upload.
var complete completeMultipartUpload
// Loop over total uploaded parts to save them in
// Parts array before completing the multipart request.
for i := 1; i <= len(m.partsInfo); i++ {
part, ok := m.partsInfo[i]
if !ok {
return UploadInfo{}, errInvalidArgument(fmt.Sprintf("Missing part number %d", i))
}
complete.Parts = append(complete.Parts, CompletePart{
ETag: part.ETag,
PartNumber: part.PartNumber,
ChecksumCRC32: part.ChecksumCRC32,
ChecksumCRC32C: part.ChecksumCRC32C,
ChecksumSHA1: part.ChecksumSHA1,
ChecksumSHA256: part.ChecksumSHA256,
})
}
// Sort all completed parts.
sort.Sort(completedParts(complete.Parts))
opts := &PutObjectOptions{
ServerSideEncryption: m.opts.ServerSideEncryption,
MergeMultipart: m.opts.MergeMultipart,
}
if len(m.crcBytes) > 0 {
// Add hash of hashes.
m.crc.Reset()
var crcBytes []byte
for i := 1; i <= len(m.crcBytes); i++ {
crcBytes = append(crcBytes, m.crcBytes[i]...)
}
m.crc.Write(crcBytes)
opts.UserMetadata = map[string]string{"X-Amz-Checksum-Crc32c": base64.StdEncoding.EncodeToString(m.crc.Sum(nil))}
}
// Input validation.
if err := s3utils.CheckValidBucketName(m.BucketName); err != nil {
return UploadInfo{}, err
}
if err := s3utils.CheckValidObjectName(m.ObjectName); err != nil {
return UploadInfo{}, err
}
// Initialize url queries.
urlValues := make(url.Values)
urlValues.Set("uploadId", m.UploadID)
// Marshal complete multipart body.
completeMultipartUploadBytes, err := xml.Marshal(complete)
if err != nil {
return UploadInfo{}, err
}
// Instantiate all the complete multipart buffer.
completeMultipartUploadBuffer := bytes.NewReader(completeMultipartUploadBytes)
reqMetadata := requestMetadata{
bucketName: m.BucketName,
objectName: m.ObjectName,
queryValues: urlValues,
contentBody: completeMultipartUploadBuffer,
contentLength: int64(len(completeMultipartUploadBytes)),
contentSHA256Hex: sum256Hex(completeMultipartUploadBytes),
customHeader: opts.Header(),
}
// Execute POST to complete multipart upload for an objectName.
resp, err := m.c.executeMethod(ctx, http.MethodPost, reqMetadata)
defer closeResponse(resp)
if err != nil {
return UploadInfo{}, err
}
if resp != nil {
if resp.StatusCode != http.StatusOK {
return UploadInfo{}, httpRespToErrorResponse(resp, m.BucketName, m.ObjectName)
}
}
// Read resp.Body into a []bytes to parse for Error response inside the body
var b []byte
b, err = io.ReadAll(resp.Body)
if err != nil {
return UploadInfo{}, err
}
// Decode completed multipart upload response on success.
completeMultipartUploadResult := completeMultipartUploadResult{}
err = xmlDecoder(bytes.NewReader(b), &completeMultipartUploadResult)
if err != nil {
// xml parsing failure due to presence an ill-formed xml fragment
return UploadInfo{}, err
} else if completeMultipartUploadResult.Bucket == "" {
// xml's Decode method ignores well-formed xml that don't apply to the type of value supplied.
// In this case, it would leave completeMultipartUploadResult with the corresponding zero-values
// of the members.
// Decode completed multipart upload response on failure
completeMultipartUploadErr := ErrorResponse{}
err = xmlDecoder(bytes.NewReader(b), &completeMultipartUploadErr)
if err != nil {
// xml parsing failure due to presence an ill-formed xml fragment
return UploadInfo{}, err
}
return UploadInfo{}, completeMultipartUploadErr
}
// extract lifecycle expiry date and rule ID
expTime, ruleID := amzExpirationToExpiryDateRuleID(resp.Header.Get(amzExpiration))
var totalUploadedSize int64
for _, partInfo := range m.partsInfo {
totalUploadedSize += partInfo.Size
}
return UploadInfo{
Bucket: completeMultipartUploadResult.Bucket,
Key: completeMultipartUploadResult.Key,
ETag: trimEtag(completeMultipartUploadResult.ETag),
Size: totalUploadedSize,
VersionID: resp.Header.Get(amzVersionID),
Location: completeMultipartUploadResult.Location,
Expiration: expTime,
ExpirationRuleID: ruleID,
ChecksumSHA256: completeMultipartUploadResult.ChecksumSHA256,
ChecksumSHA1: completeMultipartUploadResult.ChecksumSHA1,
ChecksumCRC32: completeMultipartUploadResult.ChecksumCRC32,
ChecksumCRC32C: completeMultipartUploadResult.ChecksumCRC32C,
}, nil
}
// AbortMultipartUpload aborts a multipart upload for the given
// uploadID, all previously uploaded parts are deleted.
func (m *MultipartUploader) AbortMultipartUpload(ctx context.Context) error {
bucketName := m.BucketName
objectName := m.ObjectName
// Input validation.
if err := s3utils.CheckValidBucketName(bucketName); err != nil {
return err
}
if err := s3utils.CheckValidObjectName(objectName); err != nil {
return err
}
// Initialize url queries.
urlValues := make(url.Values)
urlValues.Set("uploadId", m.UploadID)
// Execute DELETE on multipart upload.
resp, err := m.c.executeMethod(ctx, http.MethodDelete, requestMetadata{
bucketName: bucketName,
objectName: objectName,
queryValues: urlValues,
contentSHA256Hex: emptySHA256Hex,
})
defer closeResponse(resp)
if err != nil {
return err
}
if resp != nil {
if resp.StatusCode != http.StatusNoContent {
// Abort has no response body, handle it for any errors.
var errorResponse ErrorResponse
switch resp.StatusCode {
case http.StatusNotFound:
// This is needed specifically for abort and it cannot
// be converged into default case.
errorResponse = ErrorResponse{
Code: "NoSuchUpload",
Message: "The specified multipart upload does not exist.",
BucketName: bucketName,
Key: objectName,
RequestID: resp.Header.Get("x-amz-request-id"),
HostID: resp.Header.Get("x-amz-id-2"),
Region: resp.Header.Get("x-amz-bucket-region"),
}
default:
return httpRespToErrorResponse(resp, bucketName, objectName)
}
return errorResponse
}
}
return nil
}