1 # Copyright 2011 GRNET S.A. All rights reserved.
3 # Redistribution and use in source and binary forms, with or
4 # without modification, are permitted provided that the following
7 # 1. Redistributions of source code must retain the above
8 # copyright notice, this list of conditions and the following
11 # 2. Redistributions in binary form must reproduce the above
12 # copyright notice, this list of conditions and the following
13 # disclaimer in the documentation and/or other materials
14 # provided with the distribution.
16 # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
17 # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
20 # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
23 # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
24 # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
26 # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27 # POSSIBILITY OF SUCH DAMAGE.
29 # The views and conclusions contained in the software and
30 # documentation are those of the authors and should not be
31 # interpreted as representing official policies, either expressed
32 # or implied, of GRNET S.A.
37 from django.conf import settings
38 from django.http import HttpResponse
39 from django.template.loader import render_to_string
40 from django.utils import simplejson as json
41 from django.utils.http import parse_etags
42 from xml.dom import minidom
44 from pithos.api.faults import (Fault, NotModified, BadRequest, Unauthorized, ItemNotFound, Conflict,
45 LengthRequired, PreconditionFailed, RangeNotSatisfiable, UnprocessableEntity)
46 from pithos.api.util import (rename_meta_key, format_header_key, printable_header_dict, get_account_headers,
47 put_account_headers, get_container_headers, put_container_headers, get_object_headers, put_object_headers,
48 update_manifest_meta, update_sharing_meta, update_public_meta, validate_modification_preconditions,
49 validate_matching_preconditions, split_container_object_string, copy_or_move_object,
50 get_int_parameter, get_content_length, get_content_range, socket_read_iterator,
51 object_data_response, put_object_block, hashmap_hash, api_method)
52 from pithos.backends import backend
53 from pithos.backends.base import NotAllowedError
56 logger = logging.getLogger(__name__)
59 def top_demux(request):
60 if request.method == 'GET':
62 return account_list(request)
63 return authenticate(request)
65 return method_not_allowed(request)
67 def account_demux(request, v_account):
68 if request.method == 'HEAD':
69 return account_meta(request, v_account)
70 elif request.method == 'POST':
71 return account_update(request, v_account)
72 elif request.method == 'GET':
73 return container_list(request, v_account)
75 return method_not_allowed(request)
77 def container_demux(request, v_account, v_container):
78 if request.method == 'HEAD':
79 return container_meta(request, v_account, v_container)
80 elif request.method == 'PUT':
81 return container_create(request, v_account, v_container)
82 elif request.method == 'POST':
83 return container_update(request, v_account, v_container)
84 elif request.method == 'DELETE':
85 return container_delete(request, v_account, v_container)
86 elif request.method == 'GET':
87 return object_list(request, v_account, v_container)
89 return method_not_allowed(request)
91 def object_demux(request, v_account, v_container, v_object):
92 if request.method == 'HEAD':
93 return object_meta(request, v_account, v_container, v_object)
94 elif request.method == 'GET':
95 return object_read(request, v_account, v_container, v_object)
96 elif request.method == 'PUT':
97 return object_write(request, v_account, v_container, v_object)
98 elif request.method == 'COPY':
99 return object_copy(request, v_account, v_container, v_object)
100 elif request.method == 'MOVE':
101 return object_move(request, v_account, v_container, v_object)
102 elif request.method == 'POST':
103 if request.META.get('CONTENT_TYPE', '').startswith('multipart/form-data'):
104 return object_write_form(request, v_account, v_container, v_object)
105 return object_update(request, v_account, v_container, v_object)
106 elif request.method == 'DELETE':
107 return object_delete(request, v_account, v_container, v_object)
109 return method_not_allowed(request)
112 def authenticate(request):
113 # Normal Response Codes: 204
114 # Error Response Codes: serviceUnavailable (503),
115 # unauthorized (401),
118 x_auth_user = request.META.get('HTTP_X_AUTH_USER')
119 x_auth_key = request.META.get('HTTP_X_AUTH_KEY')
120 if not x_auth_user or not x_auth_key:
121 raise BadRequest('Missing X-Auth-User or X-Auth-Key header')
122 response = HttpResponse(status=204)
124 inv_auth_tokens = dict((v, k) for k, v in settings.AUTH_TOKENS.items())
125 uri = request.build_absolute_uri()
127 uri = uri[:uri.find('?')]
129 response['X-Auth-Token'] = inv_auth_tokens.get(x_auth_user, '0000')
130 response['X-Storage-Url'] = uri + (uri.endswith('/') and '' or '/') + x_auth_user
133 @api_method('GET', format_allowed=True)
134 def account_list(request):
135 # Normal Response Codes: 200, 204
136 # Error Response Codes: serviceUnavailable (503),
139 response = HttpResponse()
141 marker = request.GET.get('marker')
142 limit = get_int_parameter(request.GET.get('limit'))
146 accounts = backend.list_accounts(request.user, marker, limit)
148 if request.serialization == 'text':
149 if len(accounts) == 0:
150 # The cloudfiles python bindings expect 200 if json/xml.
151 response.status_code = 204
153 response.status_code = 200
154 response.content = '\n'.join(accounts) + '\n'
160 meta = backend.get_account_meta(request.user, x)
161 groups = backend.get_account_groups(request.user, x)
162 except NotAllowedError:
163 raise Unauthorized('Access denied')
165 rename_meta_key(meta, 'modified', 'last_modified')
166 rename_meta_key(meta, 'until_timestamp', 'x_account_until_timestamp')
167 for k, v in groups.iteritems():
168 meta['X-Container-Group-' + k] = ','.join(v)
169 account_meta.append(printable_header_dict(meta))
170 if request.serialization == 'xml':
171 data = render_to_string('accounts.xml', {'accounts': account_meta})
172 elif request.serialization == 'json':
173 data = json.dumps(account_meta)
174 response.status_code = 200
175 response.content = data
179 def account_meta(request, v_account):
180 # Normal Response Codes: 204
181 # Error Response Codes: serviceUnavailable (503),
182 # unauthorized (401),
185 until = get_int_parameter(request.GET.get('until'))
187 meta = backend.get_account_meta(request.user, v_account, until)
188 groups = backend.get_account_groups(request.user, v_account)
189 except NotAllowedError:
190 raise Unauthorized('Access denied')
192 validate_modification_preconditions(request, meta)
194 response = HttpResponse(status=204)
195 put_account_headers(response, meta, groups)
199 def account_update(request, v_account):
200 # Normal Response Codes: 202
201 # Error Response Codes: serviceUnavailable (503),
202 # unauthorized (401),
205 meta, groups = get_account_headers(request)
207 if 'update' in request.GET:
211 backend.update_account_groups(request.user, v_account, groups, replace)
212 except NotAllowedError:
213 raise Unauthorized('Access denied')
215 raise BadRequest('Invalid groups header')
217 backend.update_account_meta(request.user, v_account, meta, replace)
218 except NotAllowedError:
219 raise Unauthorized('Access denied')
220 return HttpResponse(status=202)
222 @api_method('GET', format_allowed=True)
223 def container_list(request, v_account):
224 # Normal Response Codes: 200, 204
225 # Error Response Codes: serviceUnavailable (503),
226 # itemNotFound (404),
227 # unauthorized (401),
230 until = get_int_parameter(request.GET.get('until'))
232 meta = backend.get_account_meta(request.user, v_account, until)
233 groups = backend.get_account_groups(request.user, v_account)
234 except NotAllowedError:
235 raise Unauthorized('Access denied')
237 validate_modification_preconditions(request, meta)
239 response = HttpResponse()
240 put_account_headers(response, meta, groups)
242 marker = request.GET.get('marker')
243 limit = get_int_parameter(request.GET.get('limit'))
248 if 'shared' in request.GET:
252 containers = backend.list_containers(request.user, v_account, marker, limit, shared, until)
253 except NotAllowedError:
254 raise Unauthorized('Access denied')
258 if request.serialization == 'text':
259 if len(containers) == 0:
260 # The cloudfiles python bindings expect 200 if json/xml.
261 response.status_code = 204
263 response.status_code = 200
264 response.content = '\n'.join(containers) + '\n'
270 meta = backend.get_container_meta(request.user, v_account, x, until)
271 policy = backend.get_container_policy(request.user, v_account, x)
272 except NotAllowedError:
273 raise Unauthorized('Access denied')
277 rename_meta_key(meta, 'modified', 'last_modified')
278 rename_meta_key(meta, 'until_timestamp', 'x_container_until_timestamp')
279 for k, v in policy.iteritems():
280 meta['X-Container-Policy-' + k] = v
281 container_meta.append(printable_header_dict(meta))
282 if request.serialization == 'xml':
283 data = render_to_string('containers.xml', {'account': v_account, 'containers': container_meta})
284 elif request.serialization == 'json':
285 data = json.dumps(container_meta)
286 response.status_code = 200
287 response.content = data
291 def container_meta(request, v_account, v_container):
292 # Normal Response Codes: 204
293 # Error Response Codes: serviceUnavailable (503),
294 # itemNotFound (404),
295 # unauthorized (401),
298 until = get_int_parameter(request.GET.get('until'))
300 meta = backend.get_container_meta(request.user, v_account, v_container, until)
301 meta['object_meta'] = backend.list_object_meta(request.user, v_account, v_container, until)
302 policy = backend.get_container_policy(request.user, v_account, v_container)
303 except NotAllowedError:
304 raise Unauthorized('Access denied')
306 raise ItemNotFound('Container does not exist')
308 validate_modification_preconditions(request, meta)
310 response = HttpResponse(status=204)
311 put_container_headers(response, meta, policy)
315 def container_create(request, v_account, v_container):
316 # Normal Response Codes: 201, 202
317 # Error Response Codes: serviceUnavailable (503),
318 # itemNotFound (404),
319 # unauthorized (401),
322 meta, policy = get_container_headers(request)
325 backend.put_container(request.user, v_account, v_container, policy)
327 except NotAllowedError:
328 raise Unauthorized('Access denied')
330 raise BadRequest('Invalid policy header')
336 backend.update_container_meta(request.user, v_account, v_container, meta, replace=True)
337 except NotAllowedError:
338 raise Unauthorized('Access denied')
340 raise ItemNotFound('Container does not exist')
342 return HttpResponse(status=ret)
345 def container_update(request, v_account, v_container):
346 # Normal Response Codes: 202
347 # Error Response Codes: serviceUnavailable (503),
348 # itemNotFound (404),
349 # unauthorized (401),
352 meta, policy = get_container_headers(request)
354 if 'update' in request.GET:
358 backend.update_container_policy(request.user, v_account, v_container, policy, replace)
359 except NotAllowedError:
360 raise Unauthorized('Access denied')
362 raise ItemNotFound('Container does not exist')
364 raise BadRequest('Invalid policy header')
366 backend.update_container_meta(request.user, v_account, v_container, meta, replace)
367 except NotAllowedError:
368 raise Unauthorized('Access denied')
370 raise ItemNotFound('Container does not exist')
371 return HttpResponse(status=202)
373 @api_method('DELETE')
374 def container_delete(request, v_account, v_container):
375 # Normal Response Codes: 204
376 # Error Response Codes: serviceUnavailable (503),
378 # itemNotFound (404),
379 # unauthorized (401),
382 until = get_int_parameter(request.GET.get('until'))
384 backend.delete_container(request.user, v_account, v_container, until)
385 except NotAllowedError:
386 raise Unauthorized('Access denied')
388 raise ItemNotFound('Container does not exist')
390 raise Conflict('Container is not empty')
391 return HttpResponse(status=204)
393 @api_method('GET', format_allowed=True)
394 def object_list(request, v_account, v_container):
395 # Normal Response Codes: 200, 204
396 # Error Response Codes: serviceUnavailable (503),
397 # itemNotFound (404),
398 # unauthorized (401),
401 until = get_int_parameter(request.GET.get('until'))
403 meta = backend.get_container_meta(request.user, v_account, v_container, until)
404 meta['object_meta'] = backend.list_object_meta(request.user, v_account, v_container, until)
405 policy = backend.get_container_policy(request.user, v_account, v_container)
406 except NotAllowedError:
407 raise Unauthorized('Access denied')
409 raise ItemNotFound('Container does not exist')
411 validate_modification_preconditions(request, meta)
413 response = HttpResponse()
414 put_container_headers(response, meta, policy)
416 path = request.GET.get('path')
417 prefix = request.GET.get('prefix')
418 delimiter = request.GET.get('delimiter')
420 # Path overrides prefix and delimiter.
428 if prefix and delimiter:
429 prefix = prefix + delimiter
432 prefix = prefix.lstrip('/')
434 marker = request.GET.get('marker')
435 limit = get_int_parameter(request.GET.get('limit'))
439 keys = request.GET.get('meta')
441 keys = keys.split(',')
442 keys = [format_header_key('X-Object-Meta-' + x.strip()) for x in keys if x.strip() != '']
447 if 'shared' in request.GET:
451 objects = backend.list_objects(request.user, v_account, v_container, prefix, delimiter, marker, limit, virtual, keys, shared, until)
452 except NotAllowedError:
453 raise Unauthorized('Access denied')
455 raise ItemNotFound('Container does not exist')
457 if request.serialization == 'text':
458 if len(objects) == 0:
459 # The cloudfiles python bindings expect 200 if json/xml.
460 response.status_code = 204
462 response.status_code = 200
463 response.content = '\n'.join([x[0] for x in objects]) + '\n'
469 # Virtual objects/directories.
470 object_meta.append({'subdir': x[0]})
473 meta = backend.get_object_meta(request.user, v_account, v_container, x[0], x[1])
475 permissions = backend.get_object_permissions(request.user, v_account, v_container, x[0])
476 public = backend.get_object_public(request.user, v_account, v_container, x[0])
480 except NotAllowedError:
481 raise Unauthorized('Access denied')
485 rename_meta_key(meta, 'modified', 'last_modified')
486 rename_meta_key(meta, 'modified_by', 'x_object_modified_by')
487 rename_meta_key(meta, 'version', 'x_object_version')
488 rename_meta_key(meta, 'version_timestamp', 'x_object_version_timestamp')
489 update_sharing_meta(permissions, v_account, v_container, x[0], meta)
490 update_public_meta(public, meta)
491 object_meta.append(printable_header_dict(meta))
492 if request.serialization == 'xml':
493 data = render_to_string('objects.xml', {'container': v_container, 'objects': object_meta})
494 elif request.serialization == 'json':
495 data = json.dumps(object_meta)
496 response.status_code = 200
497 response.content = data
501 def object_meta(request, v_account, v_container, v_object):
502 # Normal Response Codes: 204
503 # Error Response Codes: serviceUnavailable (503),
504 # itemNotFound (404),
505 # unauthorized (401),
508 version = request.GET.get('version')
510 meta = backend.get_object_meta(request.user, v_account, v_container, v_object, version)
512 permissions = backend.get_object_permissions(request.user, v_account, v_container, v_object)
513 public = backend.get_object_public(request.user, v_account, v_container, v_object)
517 except NotAllowedError:
518 raise Unauthorized('Access denied')
520 raise ItemNotFound('Object does not exist')
522 raise ItemNotFound('Version does not exist')
524 update_manifest_meta(request, v_account, meta)
525 update_sharing_meta(permissions, v_account, v_container, v_object, meta)
526 update_public_meta(public, meta)
528 # Evaluate conditions.
529 validate_modification_preconditions(request, meta)
531 validate_matching_preconditions(request, meta)
533 response = HttpResponse(status=304)
534 response['ETag'] = meta['hash']
537 response = HttpResponse(status=200)
538 put_object_headers(response, meta)
541 @api_method('GET', format_allowed=True)
542 def object_read(request, v_account, v_container, v_object):
543 # Normal Response Codes: 200, 206
544 # Error Response Codes: serviceUnavailable (503),
545 # rangeNotSatisfiable (416),
546 # preconditionFailed (412),
547 # itemNotFound (404),
548 # unauthorized (401),
552 version = request.GET.get('version')
554 # Reply with the version list. Do this first, as the object may be deleted.
555 if version == 'list':
556 if request.serialization == 'text':
557 raise BadRequest('No format specified for version list.')
560 v = backend.list_versions(request.user, v_account, v_container, v_object)
561 except NotAllowedError:
562 raise Unauthorized('Access denied')
564 if request.serialization == 'xml':
565 d['object'] = v_object
566 data = render_to_string('versions.xml', d)
567 elif request.serialization == 'json':
570 response = HttpResponse(data, status=200)
571 response['Content-Length'] = len(data)
575 meta = backend.get_object_meta(request.user, v_account, v_container, v_object, version)
577 permissions = backend.get_object_permissions(request.user, v_account, v_container, v_object)
578 public = backend.get_object_public(request.user, v_account, v_container, v_object)
582 except NotAllowedError:
583 raise Unauthorized('Access denied')
585 raise ItemNotFound('Object does not exist')
587 raise ItemNotFound('Version does not exist')
589 update_manifest_meta(request, v_account, meta)
590 update_sharing_meta(permissions, v_account, v_container, v_object, meta)
591 update_public_meta(public, meta)
593 # Evaluate conditions.
594 validate_modification_preconditions(request, meta)
596 validate_matching_preconditions(request, meta)
598 response = HttpResponse(status=304)
599 response['ETag'] = meta['hash']
604 if 'X-Object-Manifest' in meta:
606 src_container, src_name = split_container_object_string('/' + meta['X-Object-Manifest'])
607 objects = backend.list_objects(request.user, v_account, src_container, prefix=src_name, virtual=False)
608 except NotAllowedError:
609 raise Unauthorized('Access denied')
611 raise BadRequest('Invalid X-Object-Manifest header')
613 raise ItemNotFound('Container does not exist')
617 s, h = backend.get_object_hashmap(request.user, v_account, src_container, x[0], x[1])
620 except NotAllowedError:
621 raise Unauthorized('Access denied')
623 raise ItemNotFound('Object does not exist')
625 raise ItemNotFound('Version does not exist')
628 s, h = backend.get_object_hashmap(request.user, v_account, v_container, v_object, version)
631 except NotAllowedError:
632 raise Unauthorized('Access denied')
634 raise ItemNotFound('Object does not exist')
636 raise ItemNotFound('Version does not exist')
638 # Reply with the hashmap.
639 if request.serialization != 'text':
641 hashmap = sum(hashmaps, [])
642 d = {'block_size': backend.block_size, 'block_hash': backend.hash_algorithm, 'bytes': size, 'hashes': hashmap}
643 if request.serialization == 'xml':
644 d['object'] = v_object
645 data = render_to_string('hashes.xml', d)
646 elif request.serialization == 'json':
649 response = HttpResponse(data, status=200)
650 put_object_headers(response, meta)
651 response['Content-Length'] = len(data)
654 return object_data_response(request, sizes, hashmaps, meta)
656 @api_method('PUT', format_allowed=True)
657 def object_write(request, v_account, v_container, v_object):
658 # Normal Response Codes: 201
659 # Error Response Codes: serviceUnavailable (503),
660 # unprocessableEntity (422),
661 # lengthRequired (411),
663 # itemNotFound (404),
664 # unauthorized (401),
667 if not request.GET.get('format'):
668 request.serialization = 'text'
670 # Evaluate conditions.
671 if request.META.get('HTTP_IF_MATCH') or request.META.get('HTTP_IF_NONE_MATCH'):
673 meta = backend.get_object_meta(request.user, v_account, v_container, v_object)
674 except NotAllowedError:
675 raise Unauthorized('Access denied')
678 validate_matching_preconditions(request, meta)
680 copy_from = request.META.get('HTTP_X_COPY_FROM')
681 move_from = request.META.get('HTTP_X_MOVE_FROM')
682 if copy_from or move_from:
683 content_length = get_content_length(request) # Required by the API.
687 src_container, src_name = split_container_object_string(move_from)
689 raise BadRequest('Invalid X-Move-From header')
690 copy_or_move_object(request, v_account, src_container, src_name, v_container, v_object, move=True)
693 src_container, src_name = split_container_object_string(copy_from)
695 raise BadRequest('Invalid X-Copy-From header')
696 copy_or_move_object(request, v_account, src_container, src_name, v_container, v_object, move=False)
697 return HttpResponse(status=201)
699 meta, permissions, public = get_object_headers(request)
701 if request.META.get('HTTP_TRANSFER_ENCODING') != 'chunked':
702 content_length = get_content_length(request)
703 # Should be BadRequest, but API says otherwise.
704 if 'Content-Type' not in meta:
705 raise LengthRequired('Missing Content-Type header')
707 if request.serialization != 'text':
709 for block in socket_read_iterator(request, content_length, backend.block_size):
710 data = '%s%s' % (data, block)
712 if request.serialization == 'json':
714 if not hasattr(d, '__getitem__'):
715 raise BadRequest('Invalid data formating')
717 hashmap = d['hashes']
720 raise BadRequest('Invalid data formatting')
721 elif request.serialization == 'xml':
723 xml = minidom.parseString(data)
724 obj = xml.getElementsByTagName('object')[0]
725 size = obj.attributes['bytes'].value
727 hashes = xml.getElementsByTagName('hash')
730 hashmap.append(hash.firstChild.data)
732 raise BadRequest('Invalid data formatting')
734 meta.update({'hash': hashmap_hash(hashmap)}) # Update ETag.
739 for data in socket_read_iterator(request, content_length, backend.block_size):
740 # TODO: Raise 408 (Request Timeout) if this takes too long.
741 # TODO: Raise 499 (Client Disconnect) if a length is defined and we stop before getting this much data.
743 hashmap.append(backend.put_block(data))
746 meta['hash'] = md5.hexdigest().lower()
747 etag = request.META.get('HTTP_ETAG')
748 if etag and parse_etags(etag)[0].lower() != meta['hash']:
749 raise UnprocessableEntity('Object ETag does not match')
752 backend.update_object_hashmap(request.user, v_account, v_container, v_object, size, hashmap, meta, True, permissions)
753 except NotAllowedError:
754 raise Unauthorized('Access denied')
755 except IndexError, e:
756 raise Conflict(json.dumps(e.data))
758 raise ItemNotFound('Container does not exist')
760 raise BadRequest('Invalid sharing header')
761 except AttributeError, e:
762 raise Conflict(json.dumps(e.data))
763 if public is not None:
765 backend.update_object_public(request.user, v_account, v_container, v_object, public)
766 except NotAllowedError:
767 raise Unauthorized('Access denied')
769 raise ItemNotFound('Object does not exist')
771 response = HttpResponse(status=201)
772 response['ETag'] = meta['hash']
776 def object_write_form(request, v_account, v_container, v_object):
777 # Normal Response Codes: 201
778 # Error Response Codes: serviceUnavailable (503),
779 # itemNotFound (404),
780 # unauthorized (401),
783 if not request.FILES.has_key('X-Object-Data'):
784 raise BadRequest('Missing X-Object-Data field')
785 file = request.FILES['X-Object-Data']
788 meta['Content-Type'] = file.content_type
793 for data in file.chunks(backend.block_size):
795 hashmap.append(backend.put_block(data))
798 meta['hash'] = md5.hexdigest().lower()
801 backend.update_object_hashmap(request.user, v_account, v_container, v_object, size, hashmap, meta, True)
802 except NotAllowedError:
803 raise Unauthorized('Access denied')
805 raise ItemNotFound('Container does not exist')
807 response = HttpResponse(status=201)
808 response['ETag'] = meta['hash']
812 def object_copy(request, v_account, v_container, v_object):
813 # Normal Response Codes: 201
814 # Error Response Codes: serviceUnavailable (503),
815 # itemNotFound (404),
816 # unauthorized (401),
819 dest_path = request.META.get('HTTP_DESTINATION')
821 raise BadRequest('Missing Destination header')
823 dest_container, dest_name = split_container_object_string(dest_path)
825 raise BadRequest('Invalid Destination header')
827 # Evaluate conditions.
828 if request.META.get('HTTP_IF_MATCH') or request.META.get('HTTP_IF_NONE_MATCH'):
829 src_version = request.META.get('HTTP_X_SOURCE_VERSION')
831 meta = backend.get_object_meta(request.user, v_account, v_container, v_object, src_version)
832 except NotAllowedError:
833 raise Unauthorized('Access denied')
834 except (NameError, IndexError):
835 raise ItemNotFound('Container or object does not exist')
836 validate_matching_preconditions(request, meta)
838 copy_or_move_object(request, v_account, v_container, v_object, dest_container, dest_name, move=False)
839 return HttpResponse(status=201)
842 def object_move(request, v_account, v_container, v_object):
843 # Normal Response Codes: 201
844 # Error Response Codes: serviceUnavailable (503),
845 # itemNotFound (404),
846 # unauthorized (401),
849 dest_path = request.META.get('HTTP_DESTINATION')
851 raise BadRequest('Missing Destination header')
853 dest_container, dest_name = split_container_object_string(dest_path)
855 raise BadRequest('Invalid Destination header')
857 # Evaluate conditions.
858 if request.META.get('HTTP_IF_MATCH') or request.META.get('HTTP_IF_NONE_MATCH'):
860 meta = backend.get_object_meta(request.user, v_account, v_container, v_object)
861 except NotAllowedError:
862 raise Unauthorized('Access denied')
864 raise ItemNotFound('Container or object does not exist')
865 validate_matching_preconditions(request, meta)
867 copy_or_move_object(request, v_account, v_container, v_object, dest_container, dest_name, move=True)
868 return HttpResponse(status=201)
871 def object_update(request, v_account, v_container, v_object):
872 # Normal Response Codes: 202, 204
873 # Error Response Codes: serviceUnavailable (503),
875 # itemNotFound (404),
876 # unauthorized (401),
878 meta, permissions, public = get_object_headers(request)
879 content_type = meta.get('Content-Type')
881 del(meta['Content-Type']) # Do not allow changing the Content-Type.
884 prev_meta = backend.get_object_meta(request.user, v_account, v_container, v_object)
885 except NotAllowedError:
886 raise Unauthorized('Access denied')
888 raise ItemNotFound('Object does not exist')
890 # Evaluate conditions.
891 if request.META.get('HTTP_IF_MATCH') or request.META.get('HTTP_IF_NONE_MATCH'):
892 validate_matching_preconditions(request, prev_meta)
894 # If replacing, keep previous values of 'Content-Type' and 'hash'.
896 if 'update' in request.GET:
899 for k in ('Content-Type', 'hash'):
901 meta[k] = prev_meta[k]
903 # A Content-Type or X-Source-Object header indicates data updates.
904 src_object = request.META.get('HTTP_X_SOURCE_OBJECT')
905 if (not content_type or content_type != 'application/octet-stream') and not src_object:
906 # Do permissions first, as it may fail easier.
907 if permissions is not None:
909 backend.update_object_permissions(request.user, v_account, v_container, v_object, permissions)
910 except NotAllowedError:
911 raise Unauthorized('Access denied')
913 raise ItemNotFound('Object does not exist')
915 raise BadRequest('Invalid sharing header')
916 except AttributeError, e:
917 raise Conflict(json.dumps(e.data))
918 if public is not None:
920 backend.update_object_public(request.user, v_account, v_container, v_object, public)
921 except NotAllowedError:
922 raise Unauthorized('Access denied')
924 raise ItemNotFound('Object does not exist')
926 backend.update_object_meta(request.user, v_account, v_container, v_object, meta, replace)
927 except NotAllowedError:
928 raise Unauthorized('Access denied')
930 raise ItemNotFound('Object does not exist')
931 return HttpResponse(status=202)
933 # Single range update. Range must be in Content-Range.
934 # Based on: http://code.google.com/p/gears/wiki/ContentRangePostProposal
935 # (with the addition that '*' is allowed for the range - will append).
936 content_range = request.META.get('HTTP_CONTENT_RANGE')
937 if not content_range:
938 raise BadRequest('Missing Content-Range header')
939 ranges = get_content_range(request)
941 raise RangeNotSatisfiable('Invalid Content-Range header')
944 size, hashmap = backend.get_object_hashmap(request.user, v_account, v_container, v_object)
945 except NotAllowedError:
946 raise Unauthorized('Access denied')
948 raise ItemNotFound('Object does not exist')
950 offset, length, total = ranges
954 raise RangeNotSatisfiable('Supplied offset is beyond object limits')
956 src_container, src_name = split_container_object_string(src_object)
957 src_version = request.META.get('HTTP_X_SOURCE_VERSION')
959 src_size, src_hashmap = backend.get_object_hashmap(request.user, v_account, src_container, src_name, src_version)
960 except NotAllowedError:
961 raise Unauthorized('Access denied')
963 raise ItemNotFound('Source object does not exist')
967 elif length > src_size:
968 raise BadRequest('Object length is smaller than range length')
970 # Require either a Content-Length, or 'chunked' Transfer-Encoding.
972 if request.META.get('HTTP_TRANSFER_ENCODING') != 'chunked':
973 content_length = get_content_length(request)
976 length = content_length
978 if content_length == -1:
979 # TODO: Get up to length bytes in chunks.
980 length = content_length
981 elif length != content_length:
982 raise BadRequest('Content length does not match range length')
983 if total is not None and (total != size or offset >= size or (length > 0 and offset + length >= size)):
984 raise RangeNotSatisfiable('Supplied range will change provided object limits')
986 dest_bytes = request.META.get('HTTP_X_OBJECT_BYTES')
987 if dest_bytes is not None:
988 dest_bytes = get_int_parameter(dest_bytes)
989 if dest_bytes is None:
990 raise BadRequest('Invalid X-Object-Bytes header')
993 if offset % backend.block_size == 0:
994 # Update the hashes only.
997 bi = int(offset / backend.block_size)
998 bl = min(length, backend.block_size)
999 if bi < len(hashmap):
1000 if bl == backend.block_size:
1001 hashmap[bi] = src_hashmap[sbi]
1003 data = backend.get_block(src_hashmap[sbi])
1004 hashmap[bi] = backend.update_block(hashmap[bi], data[:bl], 0)
1006 hashmap.append(src_hashmap[sbi])
1014 data += backend.get_block(src_hashmap[sbi])
1015 if length < backend.block_size:
1016 data = data[:length]
1017 bytes = put_object_block(hashmap, data, offset)
1024 for d in socket_read_iterator(request, length, backend.block_size):
1025 # TODO: Raise 408 (Request Timeout) if this takes too long.
1026 # TODO: Raise 499 (Client Disconnect) if a length is defined and we stop before getting this much data.
1028 bytes = put_object_block(hashmap, data, offset)
1032 put_object_block(hashmap, data, offset)
1036 if dest_bytes is not None and dest_bytes < size:
1038 hashmap = hashmap[:(int((size - 1) / backend.block_size) + 1)]
1039 meta.update({'hash': hashmap_hash(hashmap)}) # Update ETag.
1041 backend.update_object_hashmap(request.user, v_account, v_container, v_object, size, hashmap, meta, replace, permissions)
1042 except NotAllowedError:
1043 raise Unauthorized('Access denied')
1045 raise ItemNotFound('Container does not exist')
1047 raise BadRequest('Invalid sharing header')
1048 except AttributeError, e:
1049 raise Conflict(json.dumps(e.data))
1050 if public is not None:
1052 backend.update_object_public(request.user, v_account, v_container, v_object, public)
1053 except NotAllowedError:
1054 raise Unauthorized('Access denied')
1056 raise ItemNotFound('Object does not exist')
1058 response = HttpResponse(status=204)
1059 response['ETag'] = meta['hash']
1062 @api_method('DELETE')
1063 def object_delete(request, v_account, v_container, v_object):
1064 # Normal Response Codes: 204
1065 # Error Response Codes: serviceUnavailable (503),
1066 # itemNotFound (404),
1067 # unauthorized (401),
1070 until = get_int_parameter(request.GET.get('until'))
1072 backend.delete_object(request.user, v_account, v_container, v_object, until)
1073 except NotAllowedError:
1074 raise Unauthorized('Access denied')
1076 raise ItemNotFound('Object does not exist')
1077 return HttpResponse(status=204)
1080 def method_not_allowed(request):
1081 raise BadRequest('Method not allowed')