Repository navigation
Expand file tree
/
Copy pathapi.py
More file actions
2005 lines (1653 loc) · 73.7 KB
/
Copy pathapi.py
File metadata and controls
2005 lines (1653 loc) · 73.7 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
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
# -*- coding: utf-8 -*-
# MinIO Python Library for Amazon S3 Compatible Cloud Storage, (C)
# 2015, 2016, 2017 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.
"""
minio.api
~~~~~~~~~~~~
This module implements the API.
:copyright: (c) 2015, 2016, 2017 by MinIO, Inc.
:license: Apache 2.0, see LICENSE for more details.
"""
# Standard python packages
from __future__ import absolute_import
import platform
from threading import Thread
from datetime import datetime, timedelta
import io
import json
import os
import itertools
try:
from json.decoder import JSONDecodeError
except ImportError:
JSONDecodeError = ValueError
# Dependencies
import urllib3
import certifi
import dateutil.parser
# Internal imports
from . import __title__, __version__
from .compat import (urlsplit, queryencode,
range, basestring)
from .error import (ResponseError, NoSuchBucket, AccessDenied,
InvalidArgumentError, InvalidSizeError, InvalidXMLError)
from .definitions import Object, UploadPart
from .parsers import (parse_list_buckets,
parse_list_objects,
parse_list_objects_v2,
parse_list_parts,
parse_copy_object,
parse_list_multipart_uploads,
parse_new_multipart_upload,
parse_location_constraint,
parse_multipart_upload_result,
parse_get_bucket_notification,
parse_multi_object_delete_response)
from .helpers import (get_target_url, is_non_empty_string,
is_valid_endpoint,
get_sha256_hexdigest, get_md5_base64digest,
optimal_part_info,
is_valid_bucket_name, read_full,
get_s3_region_from_endpoint, is_valid_sse_object, is_valid_sse_c_object,
is_valid_source_sse_object,
is_valid_bucket_notification_config, is_valid_policy_type,
mkdir_p, dump_http, amzprefix_user_metadata,
is_supported_header,is_amz_header)
from .helpers import (MAX_PART_SIZE,
MAX_POOL_SIZE,
MIN_PART_SIZE,
DEFAULT_PART_SIZE,
MAX_MULTIPART_COUNT)
from .signer import (sign_v4, presign_v4,
generate_credential_string,
post_presign_signature)
from .signer import (_UNSIGNED_PAYLOAD, _SIGN_V4_ALGORITHM)
from .xml_marshal import (xml_marshal_bucket_constraint,
xml_marshal_complete_multipart_upload,
xml_marshal_bucket_notifications,
xml_marshal_delete_objects,
xml_marshal_select)
from .fold_case_dict import FoldCaseDict
from .thread_pool import ThreadPool
from .select import SelectObjectReader
from .credentials import (Chain,
Credentials,
EnvAWS,
EnvMinio,
IamEc2MetaData,
Static)
# Comment format.
_COMMENTS = '({0}; {1})'
# App info format.
_APP_INFO = '{0}/{1}'
# MinIO (OS; ARCH) LIB/VER APP/VER .
_DEFAULT_USER_AGENT = 'MinIO {0} {1}'.format(
_COMMENTS.format(platform.system(),
platform.machine()),
_APP_INFO.format(__title__,
__version__))
# Duration of 7 days in seconds
_MAX_EXPIRY_TIME = 604800 # 7 days in seconds
# Number of parallel workers which upload parts
_PARALLEL_UPLOADERS = 3
class Minio(object):
"""
Constructs a :class:`Minio <Minio>`.
Examples:
client = Minio('play.min.io')
client = Minio('s3.amazonaws.com', 'ACCESS_KEY', 'SECRET_KEY')
# To override auto bucket location discovery.
client = Minio('play.min.io', 'ACCESS_KEY', 'SECRET_KEY',
region='us-east-1')
:param endpoint: Hostname of the cloud storage server.
:param access_key: Access key to sign self._http.request with.
:param secret_key: Secret key to sign self._http.request with.
:param session_token: Session token to sign self._http.request with.
:param secure: Set this value if wish to make secure requests.
Default is True.
:param region: Set this value to override automatic bucket
location discovery.
:param timeout: Set this value to control how long requests
are allowed to run before being aborted.
:return: :class:`Minio <Minio>` object
**NOTE on concurrent usage:** The `Minio` object is thread safe when using
the Python `threading` library. Specifically, it is **NOT** safe to share
it between multiple processes, for example when using
`multiprocessing.Pool`. The solution is simply to create a new `Minio`
object in each process, and not share it between processes.
"""
def __init__(self, endpoint, access_key=None,
secret_key=None,
session_token=None,
secure=True,
region=None,
http_client=None,
credentials=None):
# Validate endpoint.
is_valid_endpoint(endpoint)
# Validate http client has correct base class.
if http_client and not isinstance(http_client, urllib3.poolmanager.PoolManager):
raise InvalidArgumentError('HTTP client should be of instance `urllib3.poolmanager.PoolManager`')
# Default is a secured connection.
endpoint_url = 'https://' + endpoint
accelerate_endpoint_url = 'https://s3-accelerate.amazonaws.com'
if not secure:
endpoint_url = 'http://' + endpoint
accelerate_endpoint_url = 'http://s3-accelerate.amazonaws.com'
# Parse url endpoints.
url_components = urlsplit(endpoint_url)
# Extract region if possible from endpoint.
if not region:
region = get_s3_region_from_endpoint(endpoint)
self._region = region
self._region_map = dict()
self._endpoint_url = url_components.geturl()
self._is_ssl = secure
self._access_key = access_key
self._secret_key = secret_key
self._session_token = session_token
self._user_agent = _DEFAULT_USER_AGENT
self._trace_output_stream = None
self._enable_s3_accelerate = False
self._accelerate_endpoint_url = accelerate_endpoint_url
# Set credentials if possible
if credentials is not None:
self._credentials = credentials
else:
self._credentials = Credentials(
provider= Chain(
providers=[
Static(access_key, secret_key, session_token),
EnvAWS(),
EnvMinio(),
IamEc2MetaData(),
]
)
)
# Load CA certificates from SSL_CERT_FILE file if set
ca_certs = os.environ.get('SSL_CERT_FILE')
if not ca_certs:
ca_certs = certifi.where()
if not http_client:
self._http = urllib3.PoolManager(
timeout=urllib3.Timeout.DEFAULT_TIMEOUT,
maxsize=MAX_POOL_SIZE,
cert_reqs='CERT_REQUIRED',
ca_certs=ca_certs,
retries=urllib3.Retry(
total=5,
backoff_factor=0.2,
status_forcelist=[500, 502, 503, 504]
)
)
else:
self._http = http_client
# Set application information.
def set_app_info(self, app_name, app_version):
"""
Sets your application name and version to
default user agent in the following format.
MinIO (OS; ARCH) LIB/VER APP/VER
Example:
client.set_app_info('my_app', '1.0.2')
:param app_name: application name.
:param app_version: application version.
"""
if not (app_name and app_version):
raise ValueError('app_name and app_version cannot be empty.')
app_info = _APP_INFO.format(app_name,
app_version)
self._user_agent = ' '.join([_DEFAULT_USER_AGENT, app_info])
# enable HTTP trace.
def trace_on(self, stream):
"""
Enable http trace.
:param output_stream: Stream where trace is written to.
"""
if not stream:
raise ValueError('Input stream for trace output is invalid.')
# Save new output stream.
self._trace_output_stream = stream
# disable HTTP trace.
def trace_off(self):
"""
Disable HTTP trace.
"""
self._trace_output_stream = None
# S3 Transfer Accelerate
def use_s3_accelerate(self, value):
# Parse url
parsed_url = urlsplit(self._endpoint_url)
# Get new host, scheme.
scheme = parsed_url.scheme
host = parsed_url.netloc
# Strip 80/443 ports since curl & browsers do not
# send them in Host header.
if (scheme == 'http' and parsed_url.port == 80) or\
(scheme == 'https' and parsed_url.port == 443):
host = parsed_url.hostname
if 's3.amazonaws.com' in host:
self._enable_s3_accelerate = value is True
# Select Object Content
def select_object_content(self, bucket_name, object_name, opts):
"""
Executes SQL requests on objects having data in CSV, JSON
or Parquet formats.
Examples:
data = client.select_object_content('foo', 'test.csv', options)
:param bucket_name: Bucket to read object from
:param object_name: Name of object to read
:param options: Options for select object
"""
is_valid_bucket_name(bucket_name, False)
is_non_empty_string(object_name)
content = xml_marshal_select(opts)
url_values = dict()
url_values["select"] = ""
url_values["select-type"] = "2"
headers = {
'Content-Length': str(len(content)),
'Content-Md5': get_md5_base64digest(content)
}
content_sha256_hex = get_sha256_hexdigest(content)
response = self._url_open(
'POST',
bucket_name=bucket_name,
object_name=object_name,
query=url_values,
headers=headers,
body=content,
content_sha256=content_sha256_hex,
preload_content=False)
return SelectObjectReader(response)
# Bucket level
def make_bucket(self, bucket_name, location='us-east-1'):
"""
Make a new bucket on the server.
Optionally include Location.
['us-east-1', 'us
10000
-east-2', 'us-west-1', 'us-west-2', 'eu-west-1',
'eu-west-2', 'ca-central-1', 'eu-central-1', 'sa-east-1',
'cn-north-1', 'ap-southeast-1', 'ap-southeast-2',
'ap-northeast-1', 'ap-northeast-2']
Examples:
minio.make_bucket('foo')
minio.make_bucket('foo', 'us-west-1')
:param bucket_name: Bucket to create on server
:param location: Location to create bucket on
"""
is_valid_bucket_name(bucket_name, True)
# Default region for all requests.
region = 'us-east-1'
if self._region:
region = self._region
# Validate if caller requested bucket location is same as current region
if self._region != location:
raise InvalidArgumentError("Configured region {0}, requested"
" {1}".format(self._region,
location))
method = 'PUT'
# Set user agent once before the request.
headers = {'User-Agent': self._user_agent}
content = None
if location and location != 'us-east-1':
content = xml_marshal_bucket_constraint(location)
headers['Content-Length'] = str(len(content))
content_sha256_hex = get_sha256_hexdigest(content)
if content:
headers['Content-Md5'] = get_md5_base64digest(content)
# In case of Amazon S3. The make bucket issued on already
# existing bucket would fail with 'AuthorizationMalformed'
# error if virtual style is used. So we default to 'path
# style' as that is the preferred method here. The final
# location of the 'bucket' is provided through XML
# LocationConstraint data with the request.
# Construct target url.
url = self._endpoint_url + '/' + bucket_name + '/'
# Get signature headers if any.
headers = sign_v4(method, url, region,
headers,
self._credentials,
content_sha256_hex,
datetime.utcnow())
response = self._http.urlopen(method, url,
body=content,
headers=headers)
if response.status != 200:
raise ResponseError(response, method, bucket_name).get_exception()
self._set_bucket_region(bucket_name, region=location)
def list_buckets(self):
"""
List all buckets owned by the user.
Example:
bucket_list = minio.list_buckets()
for bucket in bucket_list:
print(bucket.name, bucket.created_date)
:return: An iterator of buckets owned by the current user.
"""
method = 'GET'
url = get_target_url(self._endpoint_url)
# Set user agent once before the request.
headers = {'User-Agent': self._user_agent}
# default for all requests.
region = 'us-east-1'
# region is set then use the region.
if self._region:
region = self._region
# Get signature headers if any.
headers = sign_v4(method, url, region,
headers,
self._credentials,
None, datetime.utcnow())
response = self._http.urlopen(method, url,
body=None,
headers=headers)
if self._trace_output_stream:
dump_http(method, url, headers, response,
self._trace_output_stream)
if response.status != 200:
raise ResponseError(response, method).get_exception()
try:
return parse_list_buckets(response.data)
except InvalidXMLError:
if self._endpoint_url.endswith("s3.amazonaws.com") and (not self._access_key or not self._secret_key):
raise AccessDenied(response)
def bucket_exists(self, bucket_name):
"""
Check if the bucket exists and if the user has access to it.
:param bucket_name: To test the existence and user access.
:return: True on success.
"""
is_valid_bucket_name(bucket_name, False)
try:
self._url_open('HEAD', bucket_name=bucket_name)
# If the bucket has not been created yet, MinIO will return a "NoSuchBucket" error.
except NoSuchBucket:
return False
except ResponseError:
raise
return True
def remove_bucket(self, bucket_name):
"""
Remove a bucket.
:param bucket_name: Bucket to remove
"""
is_valid_bucket_name(bucket_name, False)
self._url_open('DELETE', bucket_name=bucket_name)
# Make sure to purge bucket_name from region cache.
self._delete_bucket_region(bucket_name)
def get_bucket_policy(self, bucket_name):
"""
Get bucket policy of given bucket name.
:param bucket_name: Bucket name.
"""
is_valid_bucket_name(bucket_name, False)
response = self._url_open("GET",
bucket_name=bucket_name,
query={"policy": ""})
return response.data
def delete_bucket_policy(self, bucket_name):
self._url_open("DELETE",
bucket_name=bucket_name,
query={"policy": ""})
def set_bucket_policy(self, bucket_name, policy):
"""
Set bucket policy of given bucket name.
:param bucket_name: Bucket name.
:param policy: Access policy/ies in string format.
"""
is_valid_policy_type(policy)
is_valid_bucket_name(bucket_name, False)
headers = {
'Content-Length': str(len(policy)),
'Content-Md5': get_md5_base64digest(policy)
}
content_sha256_hex = get_sha256_hexdigest(policy)
self._url_open("PUT",
bucket_name=bucket_name,
query={"policy": ""},
headers=headers,
body=policy,
content_sha256=content_sha256_hex)
def get_bucket_notification(self, bucket_name):
"""
Get notifications configured for the given bucket.
:param bucket_name: Bucket name.
"""
is_valid_bucket_name(bucket_name, False)
response = self._url_open(
"GET",
bucket_name=bucket_name,
query={"notification": ""},
)
data = response.data.decode('utf-8')
return parse_get_bucket_notification(data)
def set_bucket_notification(self, bucket_name, notifications):
"""
Set the given notifications on the bucket.
:param bucket_name: Bucket name.
:param notifications: Notifications structure
"""
is_valid_bucket_name(bucket_name, False)
is_valid_bucket_notification_config(notifications)
content = xml_marshal_bucket_notifications(notifications)
headers = {
'Content-Length': str(len(content)),
'Content-Md5': get_md5_base64digest(content)
}
content_sha256_hex = get_sha256_hexdigest(content)
self._url_open(
'PUT',
bucket_name=bucket_name,
query={"notification": ""},
headers=headers,
body=content,
content_sha256=content_sha256_hex
)
def remove_all_bucket_notification(self, bucket_name):
"""
Removes all bucket notification configs configured
previously, this call disable event notifications
on a bucket. This operation cannot be undone, to
set notifications again you should use
``set_bucket_notification``
:param bucket_name: Bucket name.
"""
is_valid_bucket_name(bucket_name, False)
content_bytes = xml_marshal_bucket_notifications({})
headers = {
'Content-Length': str(len(content_bytes)),
'Content-Md5': get_md5_base64digest(content_bytes)
}
content_sha256_hex = get_sha256_hexdigest(content_bytes)
self._url_open(
'PUT',
bucket_name=bucket_name,
query={"notification": ""},
headers=headers,
body=content_bytes,
content_sha256=content_sha256_hex
)
def listen_bucket_notification(self, bucket_name, prefix='', suffix='',
events=['s3:ObjectCreated:*',
's3:ObjectRemoved:*',
's3:ObjectAccessed:*']):
"""
Yeilds new event notifications on a bucket, caller should iterate
to read new notifications.
NOTE: Notification is retried in case of `JSONDecodeError` otherwise
the function raises an exception.
:param bucket_name: Bucket name to listen event notifications from.
:param prefix: Object key prefix to filter notifications for.
:param suffix: Object key suffix to filter notifications for.
:param events: Enables notifications for specific event types.
of events.
"""
is_valid_bucket_name(bucket_name, False)
# If someone explicitly set prefix to None convert it to empty string.
if prefix is None:
prefix = ''
# If someone explicitly set suffix to None convert it to empty string.
if suffix is None:
suffix = ''
url_components = urlsplit(self._endpoint_url)
if url_components.hostname == 's3.amazonaws.com':
raise InvalidArgumentError(
'Listening for event notifications on a bucket is a MinIO '
'specific extension to bucket notification API. It is not '
'supported by Amazon S3')
query = {
'prefix': prefix,
'suffix': suffix,
'events': events,
}
while True:
response = self._url_open('GET', bucket_name=bucket_name,
query=query, preload_content=False)
try:
for line in response.stream():
if line.strip():
if hasattr(line, 'decode'):
line = line.decode('utf-8')
event = json.loads(line)
if event['Records'] is not None:
yield event
except JSONDecodeError:
response.close()
continue
def fput_object(self, bucket_name, object_name, file_path,
content_type='application/octet-stream',
metadata=None, sse=None, progress=None,
part_size=DEFAULT_PART_SIZE):
"""
Add a new object to the cloud storage server.
Examples:
minio.fput_object('foo', 'bar', 'filepath', 'text/plain')
:param bucket_name: Bucket to read object from.
:param object_name: Name of the object to read.
:param file_path: Local file path to be uploaded.
:param content_type: Content type of the object.
:param metadata: Any additional metadata to be uploaded along
with your PUT request.
:param progress: A progress object
:param part_size: Multipart part size
:return: etag
"""
# Open file in 'read' mode.
with open(file_path, 'rb') as file_data:
file_size = os.stat(file_path).st_size
return self.put_object(bucket_name, object_name, file_data,
file_size, content_type, metadata, sse,
progress, part_size)
def fget_object(self, bucket_name, object_name, file_path, request_headers=None, sse=None):
"""
Retrieves an object from a bucket and writes at file_path.
Examples:
minio.fget_object('foo', 'bar', 'localfile')
:param bucket_name: Bucket to read object from.
:param object_name: Name of the object to read.
:param file_path: Local file path to save the object.
:param request_headers: Any additional headers to be added with GET request.
"""
is_valid_bucket_name(bucket_name, False)
is_non_empty_string(object_name)
stat = self.stat_object(bucket_name, object_name, sse)
if os.path.isdir(file_path):
raise OSError("file is a directory.")
# Create top level directory if needed.
top_level_dir = os.path.dirname(file_path)
if top_level_dir:
mkdir_p(top_level_dir)
# Write to a temporary file "file_path.part.minio" before saving.
file_part_path = file_path + stat.etag + '.part.minio'
# Open file in 'overwrite' mode.
with open(file_part_path, 'wb') as file_part_data:
# Save current file_part statinfo.
file_statinfo = os.stat(file_part_path)
# Get partial object.
response = self._get_partial_object(bucket_name, object_name,
offset=file_statinfo.st_size,
length=0,
request_headers=request_headers,
sse=sse)
# Save content_size to verify if we wrote more data.
content_size = int(response.headers['content-length'])
# Save total_written.
total_written = 0
for data in response.stream(amt=1024 * 1024):
file_part_data.write(data)
total_written += len(data)
# Release the connection from the response at this point.
response.release_conn()
# Verify if we wrote data properly.
if total_written < content_size:
msg = 'Data written {0} bytes is smaller than the ' \
'specified size {1} bytes'.format(total_written,
content_size)
raise InvalidSizeError(msg)
if total_written > content_size:
msg = 'Data written {0} bytes is in excess than the ' \
'specified size {1} bytes'.format(total_written,
content_size)
raise InvalidSizeError(msg)
#Delete existing file to be compatible with Windows
if os.path.exists(file_path):
os.remove(file_path)
#Rename with destination file path
os.rename(file_part_path, file_path)
# Return the stat
return stat
def get_object(self, bucket_name, object_name, request_headers=None, sse=None):
"""
Retrieves an object from a bucket.
This function returns an object that contains an open network
connection to enable incremental consumption of the
response. To re-use the connection (if desired) on subsequent
requests, the user needs to call `release_conn()` on the
returned object after processing.
Examples:
my_object = minio.get_partial_object('foo', 'bar')
:param bucket_name: Bucket to read object from
:param object_name: Name of object to read
:param request_headers: Any additional headers to be added with GET request.
:return: :class:`urllib3.response.HTTPResponse` object.
"""
is_valid_bucket_name(bucket_name, False)
is_non_empty_string(object_name)
return self._get_partial_object(bucket_name,
object_name,
request_headers=request_headers,
sse=sse)
def get_partial_object(self, bucket_name, object_name, offset=0, length=0, request_headers=None, sse=None):
"""
Retrieves an object from a bucket.
Optionally takes an offset and length of data to retrieve.
This function returns an object that contains an open network
connection to enable incremental consumption of the
response. To re-use the connection (if desired) on subsequent
requests, the user needs to call `release_conn()` on the
returned object after processing.
Examples:
partial_object = minio.get_partial_object('foo', 'bar', 2, 4)
:param bucket_name: Bucket to retrieve object from
:param object_name: Name of object to retrieve
:param offset: Optional offset to retrieve bytes from.
Must be >= 0.
:param length: Optional number of bytes to retrieve.
Must be an integer.
:param request_headers: Any additional headers to be added with GET request.
:return: :class:`urllib3.response.HTTPResponse` object.
"""
is_valid_bucket_name(bucket_name, False)
is_non_empty_string(object_name)
return self._get_partial_object(bucket_name,
object_name,
offset, length,
request_headers=request_headers,
sse=sse)
def copy_object(self, bucket_name, object_name, object_source,
conditions=None, source_sse=None, sse=None, metadata=None):
"""
Copy a source object on object storage server to a new object.
NOTE: Maximum object size supported by this API is 5GB.
Examples:
:param bucket_name: Bucket of new object.
:param object_name: Name of new object.
:param object_source: Source object to be copied.
:param conditions: :class:`CopyConditions` object. Collection of
supported CopyObject conditions.
:param metadata: Any user-defined metadata to be copied along with
destination object.
"""
is_valid_bucket_name(bucket_name, False)
is_non_empty_string(object_name)
is_non_empty_string(object_source)
headers = {}
# Preserving the user-defined metadata in headers
if metadata is not None:
headers = amzprefix_user_metadata(metadata)
headers["x-amz-metadata-directive"] = "REPLACE"
if conditions:
for k, v in conditions.items():
headers[k] = v
# Source argument to copy_object can only be of type copy_SSE_C
if source_sse:
is_valid_source_sse_object(source_sse)
headers.update(source_sse.marshal())
#Destination argument to copy_object cannot be of type copy_SSE_C
if sse:
is_valid_sse_object(sse)
headers.update(sse.marshal())
headers['X-Amz-Copy-Source'] = queryencode(object_source)
response = self._url_open('PUT',
bucket_name=bucket_name,
object_name=object_name,
headers=headers)
return parse_copy_object(bucket_name, object_name, response.data)
def put_object(self, bucket_name, object_name, data, length,
content_type='application/octet-stream',
metadata=None, sse=None, progress=None,
part_size=DEFAULT_PART_SIZE):
"""
Add a new object to the cloud storage server.
NOTE: Maximum object size supported by this API is 5TiB.
Examples:
file_stat = os.stat('hello.txt')
with open('hello.txt', 'rb') as data:
minio.put_object('foo', 'bar', data, file_stat.st_size, 'text/plain')
- For length lesser than 5MB put_object automatically
does single Put operation.
- For length larger than 5MB put_object automatically
does resumable multipart operation.
:param bucket_name: Bucket of new object.
:param object_name: Name of new object.
:param data: Contents to upload.
:param length: Total length of object.
:param content_type: mime type of object as a string.
:param metadata: Any additional metadata to be uploaded along
with your PUT request.
:param progress: A progress object
:param part_size: Multipart part size
:return: etag
"""
is_valid_sse_object(sse)
is_valid_bucket_name(bucket_name, False)
is_non_empty_string(object_name)
if progress:
if not isinstance(progress, Thread):
raise TypeError('Progress object should inherit the thread.')
# Set progress bar length and object name before upload
progress.set_meta(total_length=length, object_name=object_name)
if not callable(getattr(data, 'read')):
raise ValueError(
'Invalid input data does not implement a callable read() method')
if length > (part_size * MAX_MULTIPART_COUNT):
raise InvalidArgumentError('Part size * max_parts(10000) is '
' lesser than input length.')
if part_size < MIN_PART_SIZE:
raise InvalidArgumentError('Input part size is smaller '
' than allowed minimum of 5MiB.')
if part_size > MAX_PART_SIZE:
raise InvalidArgumentError('Input part size is bigger '
' than allowed maximum of 5GiB.')
if not metadata:
metadata = {}
metadata = amzprefix_user_metadata(metadata)
metadata['Content-Type'] = 'application/octet-stream' if \
not content_type else content_type
if length > part_size:
return self._stream_put_object(bucket_name, object_name,
data, length, metadata=metadata,
sse=sse, progress=progress,
part_size=part_size)
current_data = data.read(length)
if len(current_data) != length:
raise InvalidArgumentError(
'Could not read {} bytes from data to upload'.format(length)
)
return self._do_put_object(bucket_name, object_name,
current_data, len(current_data),
metadata=metadata, sse=sse,
progress=progress)
def list_objects(self, bucket_name, prefix='', recursive=False):
"""
List objects in the given bucket.
Examples:
objects = minio.list_objects('foo')
for current_object in objects:
print(current_object)
# hello
# hello/
# hello/
# world/
objects = minio.list_objects('foo', prefix='hello/')
for current_object in objects:
print(current_object)
# hello/world/
objects = minio.list_objects('foo', recursive=True)
for current_object in objects:
print(current_object)
# hello/world/1
# world/world/2
# ...
objects = minio.list_objects('foo', prefix='hello/',
recursive=True)
for current_object in objects:
print(current_object)
# hello/world/1
# hello/world/2
:param bucket_name: Bucket to list objects from
:param prefix: String specifying objects returned must begin with
:param recursive: If yes, returns all objects for a specified prefix
:return: An iterator of objects in alphabetical order.
"""
is_valid_bucket_name(bucket_name, False)
# If someone explicitly set prefix to None convert it to empty string.
if prefix is None:
prefix = ''
method = 'GET'
# Initialize query parameters.
query = {
'prefix': prefix
}
# Delimited by default.
if not recursive:
query['delimiter'] = '/'
marker = ''
is_truncated = True
while is_truncated:
if marker:
query['marker'] = marker
headers = {}
response = self._url_open(method,
bucket_name=bucket_name,
query=query,
headers=headers)
objects, is_truncated, marker = parse_list_objects(response.data,
bucket_name=bucket_name)
for obj in objects:
yield obj
def list_objects_v2(self, bucket_name, prefix='', recursive=False, start_after=''):
"""