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 django.utils.encoding import smart_unicode, smart_str
43 from xml.dom import minidom
45 from pithos.api.faults import (Fault, NotModified, BadRequest, Unauthorized, ItemNotFound, Conflict,
46 LengthRequired, PreconditionFailed, RangeNotSatisfiable, UnprocessableEntity)
47 from pithos.api.util import (rename_meta_key, format_header_key, printable_header_dict, get_account_headers,
48 put_account_headers, get_container_headers, put_container_headers, get_object_headers, put_object_headers,
49 update_manifest_meta, update_sharing_meta, update_public_meta, validate_modification_preconditions,
50 validate_matching_preconditions, split_container_object_string, copy_or_move_object,
51 get_int_parameter, get_content_length, get_content_range, socket_read_iterator,
52 object_data_response, put_object_block, hashmap_hash, api_method)
53 from pithos.backends import backend
54 from pithos.backends.base import NotAllowedError
57 logger = logging.getLogger(__name__)
60 def top_demux(request):
61 if request.method == 'GET':
63 return account_list(request)
64 return authenticate(request)
66 return method_not_allowed(request)
68 def account_demux(request, v_account):
69 if request.method == 'HEAD':
70 return account_meta(request, v_account)
71 elif request.method == 'POST':
72 return account_update(request, v_account)
73 elif request.method == 'GET':
74 return container_list(request, v_account)
76 return method_not_allowed(request)
78 def container_demux(request, v_account, v_container):
79 if request.method == 'HEAD':
80 return container_meta(request, v_account, v_container)
81 elif request.method == 'PUT':
82 return container_create(request, v_account, v_container)
83 elif request.method == 'POST':
84 return container_update(request, v_account, v_container)
85 elif request.method == 'DELETE':
86 return container_delete(request, v_account, v_container)
87 elif request.method == 'GET':
88 return object_list(request, v_account, v_container)
90 return method_not_allowed(request)
92 def object_demux(request, v_account, v_container, v_object):
93 if request.method == 'HEAD':
94 return object_meta(request, v_account, v_container, v_object)
95 elif request.method == 'GET':
96 return object_read(request, v_account, v_container, v_object)
97 elif request.method == 'PUT':
98 return object_write(request, v_account, v_container, v_object)
99 elif request.method == 'COPY':
100 return object_copy(request, v_account, v_container, v_object)
101 elif request.method == 'MOVE':
102 return object_move(request, v_account, v_container, v_object)
103 elif request.method == 'POST':
104 if request.META.get('CONTENT_TYPE', '').startswith('multipart/form-data'):
105 return object_write_form(request, v_account, v_container, v_object)
106 return object_update(request, v_account, v_container, v_object)
107 elif request.method == 'DELETE':
108 return object_delete(request, v_account, v_container, v_object)
110 return method_not_allowed(request)
113 def authenticate(request):
114 # Normal Response Codes: 204
115 # Error Response Codes: serviceUnavailable (503),
116 # unauthorized (401),
119 x_auth_user = request.META.get('HTTP_X_AUTH_USER')
120 x_auth_key = request.META.get('HTTP_X_AUTH_KEY')
121 if not x_auth_user or not x_auth_key:
122 raise BadRequest('Missing X-Auth-User or X-Auth-Key header')
123 response = HttpResponse(status=204)
125 uri = request.build_absolute_uri()
127 uri = uri[:uri.find('?')]
129 response['X-Auth-Token'] = x_auth_key
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')
218 backend.update_account_meta(request.user, v_account, meta, replace)
219 except NotAllowedError:
220 raise Unauthorized('Access denied')
221 return HttpResponse(status=202)
223 @api_method('GET', format_allowed=True)
224 def container_list(request, v_account):
225 # Normal Response Codes: 200, 204
226 # Error Response Codes: serviceUnavailable (503),
227 # itemNotFound (404),
228 # unauthorized (401),
231 until = get_int_parameter(request.GET.get('until'))
233 meta = backend.get_account_meta(request.user, v_account, until)
234 groups = backend.get_account_groups(request.user, v_account)
235 except NotAllowedError:
236 raise Unauthorized('Access denied')
238 validate_modification_preconditions(request, meta)
240 response = HttpResponse()
241 put_account_headers(response, meta, groups)
243 marker = request.GET.get('marker')
244 limit = get_int_parameter(request.GET.get('limit'))
249 if 'shared' in request.GET:
253 containers = backend.list_containers(request.user, v_account, marker, limit, shared, until)
254 except NotAllowedError:
255 raise Unauthorized('Access denied')
259 if request.serialization == 'text':
260 if len(containers) == 0:
261 # The cloudfiles python bindings expect 200 if json/xml.
262 response.status_code = 204
264 response.status_code = 200
265 response.content = '\n'.join(containers) + '\n'
271 meta = backend.get_container_meta(request.user, v_account, x, until)
272 policy = backend.get_container_policy(request.user, v_account, x)
273 except NotAllowedError:
274 raise Unauthorized('Access denied')
278 rename_meta_key(meta, 'modified', 'last_modified')
279 rename_meta_key(meta, 'until_timestamp', 'x_container_until_timestamp')
280 for k, v in policy.iteritems():
281 meta['X-Container-Policy-' + k] = v
282 container_meta.append(printable_header_dict(meta))
283 if request.serialization == 'xml':
284 data = render_to_string('containers.xml', {'account': v_account, 'containers': container_meta})
285 elif request.serialization == 'json':
286 data = json.dumps(container_meta)
287 response.status_code = 200
288 response.content = data
292 def container_meta(request, v_account, v_container):
293 # Normal Response Codes: 204
294 # Error Response Codes: serviceUnavailable (503),
295 # itemNotFound (404),
296 # unauthorized (401),
299 until = get_int_parameter(request.GET.get('until'))
301 meta = backend.get_container_meta(request.user, v_account, v_container, until)
302 meta['object_meta'] = backend.list_object_meta(request.user, v_account, v_container, until)
303 policy = backend.get_container_policy(request.user, v_account, v_container)
304 except NotAllowedError:
305 raise Unauthorized('Access denied')
307 raise ItemNotFound('Container does not exist')
309 validate_modification_preconditions(request, meta)
311 response = HttpResponse(status=204)
312 put_container_headers(response, meta, policy)
316 def container_create(request, v_account, v_container):
317 # Normal Response Codes: 201, 202
318 # Error Response Codes: serviceUnavailable (503),
319 # itemNotFound (404),
320 # unauthorized (401),
323 meta, policy = get_container_headers(request)
326 backend.put_container(request.user, v_account, v_container, policy)
328 except NotAllowedError:
329 raise Unauthorized('Access denied')
331 raise BadRequest('Invalid policy header')
337 backend.update_container_meta(request.user, v_account, v_container, meta, replace=True)
338 except NotAllowedError:
339 raise Unauthorized('Access denied')
341 raise ItemNotFound('Container does not exist')
343 return HttpResponse(status=ret)
346 def container_update(request, v_account, v_container):
347 # Normal Response Codes: 202
348 # Error Response Codes: serviceUnavailable (503),
349 # itemNotFound (404),
350 # unauthorized (401),
353 meta, policy = get_container_headers(request)
355 if 'update' in request.GET:
359 backend.update_container_policy(request.user, v_account, v_container, policy, replace)
360 except NotAllowedError:
361 raise Unauthorized('Access denied')
363 raise ItemNotFound('Container does not exist')
365 raise BadRequest('Invalid policy header')
368 backend.update_container_meta(request.user, v_account, v_container, meta, replace)
369 except NotAllowedError:
370 raise Unauthorized('Access denied')
372 raise ItemNotFound('Container does not exist')
373 return HttpResponse(status=202)
375 @api_method('DELETE')
376 def container_delete(request, v_account, v_container):
377 # Normal Response Codes: 204
378 # Error Response Codes: serviceUnavailable (503),
380 # itemNotFound (404),
381 # unauthorized (401),
384 until = get_int_parameter(request.GET.get('until'))
386 backend.delete_container(request.user, v_account, v_container, until)
387 except NotAllowedError:
388 raise Unauthorized('Access denied')
390 raise ItemNotFound('Container does not exist')
392 raise Conflict('Container is not empty')
393 return HttpResponse(status=204)
395 @api_method('GET', format_allowed=True)
396 def object_list(request, v_account, v_container):
397 # Normal Response Codes: 200, 204
398 # Error Response Codes: serviceUnavailable (503),
399 # itemNotFound (404),
400 # unauthorized (401),
403 until = get_int_parameter(request.GET.get('until'))
405 meta = backend.get_container_meta(request.user, v_account, v_container, until)
406 meta['object_meta'] = backend.list_object_meta(request.user, v_account, v_container, until)
407 policy = backend.get_container_policy(request.user, v_account, v_container)
408 except NotAllowedError:
409 raise Unauthorized('Access denied')
411 raise ItemNotFound('Container does not exist')
413 validate_modification_preconditions(request, meta)
415 response = HttpResponse()
416 put_container_headers(response, meta, policy)
418 path = request.GET.get('path')
419 prefix = request.GET.get('prefix')
420 delimiter = request.GET.get('delimiter')
422 # Path overrides prefix and delimiter.
430 if prefix and delimiter:
431 prefix = prefix + delimiter
434 prefix = prefix.lstrip('/')
436 marker = request.GET.get('marker')
437 limit = get_int_parameter(request.GET.get('limit'))
441 keys = request.GET.get('meta')
443 keys = keys.split(',')
444 l = [smart_str(x) for x in keys if x.strip() != '']
445 keys = [format_header_key('X-Object-Meta-' + x.strip()) for x in l]
450 if 'shared' in request.GET:
454 objects = backend.list_objects(request.user, v_account, v_container, prefix, delimiter, marker, limit, virtual, keys, shared, until)
455 except NotAllowedError:
456 raise Unauthorized('Access denied')
458 raise ItemNotFound('Container does not exist')
460 if request.serialization == 'text':
461 if len(objects) == 0:
462 # The cloudfiles python bindings expect 200 if json/xml.
463 response.status_code = 204
465 response.status_code = 200
466 response.content = '\n'.join([x[0] for x in objects]) + '\n'
472 # Virtual objects/directories.
473 object_meta.append({'subdir': x[0]})
476 meta = backend.get_object_meta(request.user, v_account, v_container, x[0], x[1])
478 permissions = backend.get_object_permissions(request.user, v_account, v_container, x[0])
479 public = backend.get_object_public(request.user, v_account, v_container, x[0])
483 except NotAllowedError:
484 raise Unauthorized('Access denied')
488 rename_meta_key(meta, 'modified', 'last_modified')
489 rename_meta_key(meta, 'modified_by', 'x_object_modified_by')
490 rename_meta_key(meta, 'version', 'x_object_version')
491 rename_meta_key(meta, 'version_timestamp', 'x_object_version_timestamp')
492 update_sharing_meta(permissions, v_account, v_container, x[0], meta)
493 update_public_meta(public, meta)
494 object_meta.append(printable_header_dict(meta))
495 if request.serialization == 'xml':
496 data = render_to_string('objects.xml', {'container': v_container, 'objects': object_meta})
497 elif request.serialization == 'json':
498 data = json.dumps(object_meta)
499 response.status_code = 200
500 response.content = data
504 def object_meta(request, v_account, v_container, v_object):
505 # Normal Response Codes: 204
506 # Error Response Codes: serviceUnavailable (503),
507 # itemNotFound (404),
508 # unauthorized (401),
511 version = request.GET.get('version')
513 meta = backend.get_object_meta(request.user, v_account, v_container, v_object, version)
515 permissions = backend.get_object_permissions(request.user, v_account, v_container, v_object)
516 public = backend.get_object_public(request.user, v_account, v_container, v_object)
520 except NotAllowedError:
521 raise Unauthorized('Access denied')
523 raise ItemNotFound('Object does not exist')
525 raise ItemNotFound('Version does not exist')
527 update_manifest_meta(request, v_account, meta)
528 update_sharing_meta(permissions, v_account, v_container, v_object, meta)
529 update_public_meta(public, meta)
531 # Evaluate conditions.
532 validate_modification_preconditions(request, meta)
534 validate_matching_preconditions(request, meta)
536 response = HttpResponse(status=304)
537 response['ETag'] = meta['hash']
540 response = HttpResponse(status=200)
541 put_object_headers(response, meta)
544 @api_method('GET', format_allowed=True)
545 def object_read(request, v_account, v_container, v_object):
546 # Normal Response Codes: 200, 206
547 # Error Response Codes: serviceUnavailable (503),
548 # rangeNotSatisfiable (416),
549 # preconditionFailed (412),
550 # itemNotFound (404),
551 # unauthorized (401),
555 version = request.GET.get('version')
557 # Reply with the version list. Do this first, as the object may be deleted.
558 if version == 'list':
559 if request.serialization == 'text':
560 raise BadRequest('No format specified for version list.')
563 v = backend.list_versions(request.user, v_account, v_container, v_object)
564 except NotAllowedError:
565 raise Unauthorized('Access denied')
567 if request.serialization == 'xml':
568 d['object'] = v_object
569 data = render_to_string('versions.xml', d)
570 elif request.serialization == 'json':
573 response = HttpResponse(data, status=200)
574 response['Content-Length'] = len(data)
578 meta = backend.get_object_meta(request.user, v_account, v_container, v_object, version)
580 permissions = backend.get_object_permissions(request.user, v_account, v_container, v_object)
581 public = backend.get_object_public(request.user, v_account, v_container, v_object)
585 except NotAllowedError:
586 raise Unauthorized('Access denied')
588 raise ItemNotFound('Object does not exist')
590 raise ItemNotFound('Version does not exist')
592 update_manifest_meta(request, v_account, meta)
593 update_sharing_meta(permissions, v_account, v_container, v_object, meta)
594 update_public_meta(public, meta)
596 # Evaluate conditions.
597 validate_modification_preconditions(request, meta)
599 validate_matching_preconditions(request, meta)
601 response = HttpResponse(status=304)
602 response['ETag'] = meta['hash']
607 if 'X-Object-Manifest' in meta:
609 src_container, src_name = split_container_object_string('/' + meta['X-Object-Manifest'])
610 objects = backend.list_objects(request.user, v_account, src_container, prefix=src_name, virtual=False)
611 except NotAllowedError:
612 raise Unauthorized('Access denied')
614 raise BadRequest('Invalid X-Object-Manifest header')
616 raise ItemNotFound('Container does not exist')
620 s, h = backend.get_object_hashmap(request.user, v_account, src_container, x[0], x[1])
623 except NotAllowedError:
624 raise Unauthorized('Access denied')
626 raise ItemNotFound('Object does not exist')
628 raise ItemNotFound('Version does not exist')
631 s, h = backend.get_object_hashmap(request.user, v_account, v_container, v_object, version)
634 except NotAllowedError:
635 raise Unauthorized('Access denied')
637 raise ItemNotFound('Object does not exist')
639 raise ItemNotFound('Version does not exist')
641 # Reply with the hashmap.
642 if request.serialization != 'text':
644 hashmap = sum(hashmaps, [])
645 d = {'block_size': backend.block_size, 'block_hash': backend.hash_algorithm, 'bytes': size, 'hashes': hashmap}
646 if request.serialization == 'xml':
647 d['object'] = v_object
648 data = render_to_string('hashes.xml', d)
649 elif request.serialization == 'json':
652 response = HttpResponse(data, status=200)
653 put_object_headers(response, meta)
654 response['Content-Length'] = len(data)
657 return object_data_response(request, sizes, hashmaps, meta)
659 @api_method('PUT', format_allowed=True)
660 def object_write(request, v_account, v_container, v_object):
661 # Normal Response Codes: 201
662 # Error Response Codes: serviceUnavailable (503),
663 # unprocessableEntity (422),
664 # lengthRequired (411),
666 # itemNotFound (404),
667 # unauthorized (401),
670 if not request.GET.get('format'):
671 request.serialization = 'text'
673 # Evaluate conditions.
674 if request.META.get('HTTP_IF_MATCH') or request.META.get('HTTP_IF_NONE_MATCH'):
676 meta = backend.get_object_meta(request.user, v_account, v_container, v_object)
677 except NotAllowedError:
678 raise Unauthorized('Access denied')
681 validate_matching_preconditions(request, meta)
683 copy_from = smart_unicode(request.META.get('HTTP_X_COPY_FROM'), strings_only=True)
684 move_from = smart_unicode(request.META.get('HTTP_X_MOVE_FROM'), strings_only=True)
685 if copy_from or move_from:
686 content_length = get_content_length(request) # Required by the API.
690 src_container, src_name = split_container_object_string(move_from)
692 raise BadRequest('Invalid X-Move-From header')
693 version_id = copy_or_move_object(request, v_account, src_container, src_name, v_container, v_object, move=True)
696 src_container, src_name = split_container_object_string(copy_from)
698 raise BadRequest('Invalid X-Copy-From header')
699 version_id = copy_or_move_object(request, v_account, src_container, src_name, v_container, v_object, move=False)
700 response = HttpResponse(status=201)
701 response['X-Object-Version'] = version_id
704 meta, permissions, public = get_object_headers(request)
706 if request.META.get('HTTP_TRANSFER_ENCODING') != 'chunked':
707 content_length = get_content_length(request)
708 # Should be BadRequest, but API says otherwise.
709 if 'Content-Type' not in meta:
710 raise LengthRequired('Missing Content-Type header')
712 if request.serialization != 'text':
714 for block in socket_read_iterator(request, content_length, backend.block_size):
715 data = '%s%s' % (data, block)
717 if request.serialization == 'json':
719 if not hasattr(d, '__getitem__'):
720 raise BadRequest('Invalid data formating')
722 hashmap = d['hashes']
723 size = int(d['bytes'])
725 raise BadRequest('Invalid data formatting')
726 elif request.serialization == 'xml':
728 xml = minidom.parseString(data)
729 obj = xml.getElementsByTagName('object')[0]
730 size = int(obj.attributes['bytes'].value)
732 hashes = xml.getElementsByTagName('hash')
735 hashmap.append(hash.firstChild.data)
737 raise BadRequest('Invalid data formatting')
739 meta.update({'hash': hashmap_hash(hashmap)}) # Update ETag.
744 for data in socket_read_iterator(request, content_length, backend.block_size):
745 # TODO: Raise 408 (Request Timeout) if this takes too long.
746 # TODO: Raise 499 (Client Disconnect) if a length is defined and we stop before getting this much data.
748 hashmap.append(backend.put_block(data))
751 meta['hash'] = md5.hexdigest().lower()
752 etag = request.META.get('HTTP_ETAG')
753 if etag and parse_etags(etag)[0].lower() != meta['hash']:
754 raise UnprocessableEntity('Object ETag does not match')
757 version_id = backend.update_object_hashmap(request.user, v_account, v_container, v_object, size, hashmap, meta, True, permissions)
758 except NotAllowedError:
759 raise Unauthorized('Access denied')
760 except IndexError, e:
761 raise Conflict('\n'.join(e.data) + '\n')
763 raise ItemNotFound('Container does not exist')
765 raise BadRequest('Invalid sharing header')
766 except AttributeError, e:
767 raise Conflict('\n'.join(e.data) + '\n')
768 if public is not None:
770 backend.update_object_public(request.user, v_account, v_container, v_object, public)
771 except NotAllowedError:
772 raise Unauthorized('Access denied')
774 raise ItemNotFound('Object does not exist')
776 response = HttpResponse(status=201)
777 response['ETag'] = meta['hash']
778 response['X-Object-Version'] = version_id
782 def object_write_form(request, v_account, v_container, v_object):
783 # Normal Response Codes: 201
784 # Error Response Codes: serviceUnavailable (503),
785 # itemNotFound (404),
786 # unauthorized (401),
789 if not request.FILES.has_key('X-Object-Data'):
790 raise BadRequest('Missing X-Object-Data field')
791 file = request.FILES['X-Object-Data']
794 meta['Content-Type'] = file.content_type
799 for data in file.chunks(backend.block_size):
801 hashmap.append(backend.put_block(data))
804 meta['hash'] = md5.hexdigest().lower()
807 version_id = backend.update_object_hashmap(request.user, v_account, v_container, v_object, size, hashmap, meta, True)
808 except NotAllowedError:
809 raise Unauthorized('Access denied')
811 raise ItemNotFound('Container does not exist')
813 response = HttpResponse(status=201)
814 response['ETag'] = meta['hash']
815 response['X-Object-Version'] = version_id
819 def object_copy(request, v_account, v_container, v_object):
820 # Normal Response Codes: 201
821 # Error Response Codes: serviceUnavailable (503),
822 # itemNotFound (404),
823 # unauthorized (401),
826 dest_path = request.META.get('HTTP_DESTINATION')
828 raise BadRequest('Missing Destination header')
830 dest_container, dest_name = split_container_object_string(dest_path)
832 raise BadRequest('Invalid Destination header')
834 # Evaluate conditions.
835 if request.META.get('HTTP_IF_MATCH') or request.META.get('HTTP_IF_NONE_MATCH'):
836 src_version = request.META.get('HTTP_X_SOURCE_VERSION')
838 meta = backend.get_object_meta(request.user, v_account, v_container, v_object, src_version)
839 except NotAllowedError:
840 raise Unauthorized('Access denied')
841 except (NameError, IndexError):
842 raise ItemNotFound('Container or object does not exist')
843 validate_matching_preconditions(request, meta)
845 version_id = copy_or_move_object(request, v_account, v_container, v_object, dest_container, dest_name, move=False)
846 response = HttpResponse(status=201)
847 response['X-Object-Version'] = version_id
851 def object_move(request, v_account, v_container, v_object):
852 # Normal Response Codes: 201
853 # Error Response Codes: serviceUnavailable (503),
854 # itemNotFound (404),
855 # unauthorized (401),
858 dest_path = request.META.get('HTTP_DESTINATION')
860 raise BadRequest('Missing Destination header')
862 dest_container, dest_name = split_container_object_string(dest_path)
864 raise BadRequest('Invalid Destination header')
866 # Evaluate conditions.
867 if request.META.get('HTTP_IF_MATCH') or request.META.get('HTTP_IF_NONE_MATCH'):
869 meta = backend.get_object_meta(request.user, v_account, v_container, v_object)
870 except NotAllowedError:
871 raise Unauthorized('Access denied')
873 raise ItemNotFound('Container or object does not exist')
874 validate_matching_preconditions(request, meta)
876 version_id = copy_or_move_object(request, v_account, v_container, v_object, dest_container, dest_name, move=True)
877 response = HttpResponse(status=201)
878 response['X-Object-Version'] = version_id
882 def object_update(request, v_account, v_container, v_object):
883 # Normal Response Codes: 202, 204
884 # Error Response Codes: serviceUnavailable (503),
886 # itemNotFound (404),
887 # unauthorized (401),
889 meta, permissions, public = get_object_headers(request)
890 content_type = meta.get('Content-Type')
892 del(meta['Content-Type']) # Do not allow changing the Content-Type.
895 prev_meta = backend.get_object_meta(request.user, v_account, v_container, v_object)
896 except NotAllowedError:
897 raise Unauthorized('Access denied')
899 raise ItemNotFound('Object does not exist')
901 # Evaluate conditions.
902 if request.META.get('HTTP_IF_MATCH') or request.META.get('HTTP_IF_NONE_MATCH'):
903 validate_matching_preconditions(request, prev_meta)
905 # If replacing, keep previous values of 'Content-Type' and 'hash'.
907 if 'update' in request.GET:
910 for k in ('Content-Type', 'hash'):
912 meta[k] = prev_meta[k]
914 # A Content-Type or X-Source-Object header indicates data updates.
915 src_object = request.META.get('HTTP_X_SOURCE_OBJECT')
916 if (not content_type or content_type != 'application/octet-stream') and not src_object:
917 response = HttpResponse(status=202)
919 # Do permissions first, as it may fail easier.
920 if permissions is not None:
922 backend.update_object_permissions(request.user, v_account, v_container, v_object, permissions)
923 except NotAllowedError:
924 raise Unauthorized('Access denied')
926 raise ItemNotFound('Object does not exist')
928 raise BadRequest('Invalid sharing header')
929 except AttributeError, e:
930 raise Conflict('\n'.join(e.data) + '\n')
931 if public is not None:
933 backend.update_object_public(request.user, v_account, v_container, v_object, public)
934 except NotAllowedError:
935 raise Unauthorized('Access denied')
937 raise ItemNotFound('Object does not exist')
940 version_id = backend.update_object_meta(request.user, v_account, v_container, v_object, meta, replace)
941 except NotAllowedError:
942 raise Unauthorized('Access denied')
944 raise ItemNotFound('Object does not exist')
945 response['X-Object-Version'] = version_id
949 # Single range update. Range must be in Content-Range.
950 # Based on: http://code.google.com/p/gears/wiki/ContentRangePostProposal
951 # (with the addition that '*' is allowed for the range - will append).
952 content_range = request.META.get('HTTP_CONTENT_RANGE')
953 if not content_range:
954 raise BadRequest('Missing Content-Range header')
955 ranges = get_content_range(request)
957 raise RangeNotSatisfiable('Invalid Content-Range header')
960 size, hashmap = backend.get_object_hashmap(request.user, v_account, v_container, v_object)
961 except NotAllowedError:
962 raise Unauthorized('Access denied')
964 raise ItemNotFound('Object does not exist')
966 offset, length, total = ranges
970 raise RangeNotSatisfiable('Supplied offset is beyond object limits')
972 src_container, src_name = split_container_object_string(src_object)
973 src_container = smart_unicode(src_container, strings_only=True)
974 src_name = smart_unicode(src_name, strings_only=True)
975 src_version = request.META.get('HTTP_X_SOURCE_VERSION')
977 src_size, src_hashmap = backend.get_object_hashmap(request.user, v_account, src_container, src_name, src_version)
978 except NotAllowedError:
979 raise Unauthorized('Access denied')
981 raise ItemNotFound('Source object does not exist')
985 elif length > src_size:
986 raise BadRequest('Object length is smaller than range length')
988 # Require either a Content-Length, or 'chunked' Transfer-Encoding.
990 if request.META.get('HTTP_TRANSFER_ENCODING') != 'chunked':
991 content_length = get_content_length(request)
994 length = content_length
996 if content_length == -1:
997 # TODO: Get up to length bytes in chunks.
998 length = content_length
999 elif length != content_length:
1000 raise BadRequest('Content length does not match range length')
1001 if total is not None and (total != size or offset >= size or (length > 0 and offset + length >= size)):
1002 raise RangeNotSatisfiable('Supplied range will change provided object limits')
1004 dest_bytes = request.META.get('HTTP_X_OBJECT_BYTES')
1005 if dest_bytes is not None:
1006 dest_bytes = get_int_parameter(dest_bytes)
1007 if dest_bytes is None:
1008 raise BadRequest('Invalid X-Object-Bytes header')
1011 if offset % backend.block_size == 0:
1012 # Update the hashes only.
1015 bi = int(offset / backend.block_size)
1016 bl = min(length, backend.block_size)
1017 if bi < len(hashmap):
1018 if bl == backend.block_size:
1019 hashmap[bi] = src_hashmap[sbi]
1021 data = backend.get_block(src_hashmap[sbi])
1022 hashmap[bi] = backend.update_block(hashmap[bi], data[:bl], 0)
1024 hashmap.append(src_hashmap[sbi])
1032 data += backend.get_block(src_hashmap[sbi])
1033 if length < backend.block_size:
1034 data = data[:length]
1035 bytes = put_object_block(hashmap, data, offset)
1042 for d in socket_read_iterator(request, length, backend.block_size):
1043 # TODO: Raise 408 (Request Timeout) if this takes too long.
1044 # TODO: Raise 499 (Client Disconnect) if a length is defined and we stop before getting this much data.
1046 bytes = put_object_block(hashmap, data, offset)
1050 put_object_block(hashmap, data, offset)
1054 if dest_bytes is not None and dest_bytes < size:
1056 hashmap = hashmap[:(int((size - 1) / backend.block_size) + 1)]
1057 meta.update({'hash': hashmap_hash(hashmap)}) # Update ETag.
1059 version_id = backend.update_object_hashmap(request.user, v_account, v_container, v_object, size, hashmap, meta, replace, permissions)
1060 except NotAllowedError:
1061 raise Unauthorized('Access denied')
1063 raise ItemNotFound('Container does not exist')
1065 raise BadRequest('Invalid sharing header')
1066 except AttributeError, e:
1067 raise Conflict('\n'.join(e.data) + '\n')
1068 if public is not None:
1070 backend.update_object_public(request.user, v_account, v_container, v_object, public)
1071 except NotAllowedError:
1072 raise Unauthorized('Access denied')
1074 raise ItemNotFound('Object does not exist')
1076 response = HttpResponse(status=204)
1077 response['ETag'] = meta['hash']
1078 response['X-Object-Version'] = version_id
1081 @api_method('DELETE')
1082 def object_delete(request, v_account, v_container, v_object):
1083 # Normal Response Codes: 204
1084 # Error Response Codes: serviceUnavailable (503),
1085 # itemNotFound (404),
1086 # unauthorized (401),
1089 until = get_int_parameter(request.GET.get('until'))
1091 backend.delete_object(request.user, v_account, v_container, v_object, until)
1092 except NotAllowedError:
1093 raise Unauthorized('Access denied')
1095 raise ItemNotFound('Object does not exist')
1096 return HttpResponse(status=204)
1099 def method_not_allowed(request):
1100 raise BadRequest('Method not allowed')