root / pithos / api / functions.py @ 1d5c57d3
History | View | Annotate | Download (37.3 kB)
1 |
# Copyright 2011 GRNET S.A. All rights reserved.
|
---|---|
2 |
#
|
3 |
# Redistribution and use in source and binary forms, with or
|
4 |
# without modification, are permitted provided that the following
|
5 |
# conditions are met:
|
6 |
#
|
7 |
# 1. Redistributions of source code must retain the above
|
8 |
# copyright notice, this list of conditions and the following
|
9 |
# disclaimer.
|
10 |
#
|
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.
|
15 |
#
|
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.
|
28 |
#
|
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.
|
33 |
|
34 |
import os |
35 |
import logging |
36 |
import hashlib |
37 |
|
38 |
from django.conf import settings |
39 |
from django.http import HttpResponse |
40 |
from django.template.loader import render_to_string |
41 |
from django.utils import simplejson as json |
42 |
from django.utils.http import parse_etags |
43 |
|
44 |
from pithos.api.faults import (Fault, NotModified, BadRequest, Unauthorized, ItemNotFound, Conflict, |
45 |
LengthRequired, PreconditionFailed, RangeNotSatisfiable, UnprocessableEntity) |
46 |
from pithos.api.util import (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, raw_input_socket, |
51 |
socket_read_iterator, object_data_response, put_object_block, hashmap_hash, api_method) |
52 |
from pithos.backends import backend |
53 |
from pithos.backends.base import NotAllowedError |
54 |
|
55 |
|
56 |
logger = logging.getLogger(__name__) |
57 |
|
58 |
|
59 |
def top_demux(request): |
60 |
if request.method == 'GET': |
61 |
return authenticate(request)
|
62 |
else:
|
63 |
return method_not_allowed(request)
|
64 |
|
65 |
def account_demux(request, v_account): |
66 |
if request.method == 'HEAD': |
67 |
return account_meta(request, v_account)
|
68 |
elif request.method == 'POST': |
69 |
return account_update(request, v_account)
|
70 |
elif request.method == 'GET': |
71 |
return container_list(request, v_account)
|
72 |
else:
|
73 |
return method_not_allowed(request)
|
74 |
|
75 |
def container_demux(request, v_account, v_container): |
76 |
if request.method == 'HEAD': |
77 |
return container_meta(request, v_account, v_container)
|
78 |
elif request.method == 'PUT': |
79 |
return container_create(request, v_account, v_container)
|
80 |
elif request.method == 'POST': |
81 |
return container_update(request, v_account, v_container)
|
82 |
elif request.method == 'DELETE': |
83 |
return container_delete(request, v_account, v_container)
|
84 |
elif request.method == 'GET': |
85 |
return object_list(request, v_account, v_container)
|
86 |
else:
|
87 |
return method_not_allowed(request)
|
88 |
|
89 |
def object_demux(request, v_account, v_container, v_object): |
90 |
if request.method == 'HEAD': |
91 |
return object_meta(request, v_account, v_container, v_object)
|
92 |
elif request.method == 'GET': |
93 |
return object_read(request, v_account, v_container, v_object)
|
94 |
elif request.method == 'PUT': |
95 |
return object_write(request, v_account, v_container, v_object)
|
96 |
elif request.method == 'COPY': |
97 |
return object_copy(request, v_account, v_container, v_object)
|
98 |
elif request.method == 'MOVE': |
99 |
return object_move(request, v_account, v_container, v_object)
|
100 |
elif request.method == 'POST': |
101 |
if request.META.get('CONTENT_TYPE', '').startswith('multipart/form-data'): |
102 |
return object_write_form(request, v_account, v_container, v_object)
|
103 |
return object_update(request, v_account, v_container, v_object)
|
104 |
elif request.method == 'DELETE': |
105 |
return object_delete(request, v_account, v_container, v_object)
|
106 |
else:
|
107 |
return method_not_allowed(request)
|
108 |
|
109 |
@api_method('GET') |
110 |
def authenticate(request): |
111 |
# Normal Response Codes: 204
|
112 |
# Error Response Codes: serviceUnavailable (503),
|
113 |
# unauthorized (401),
|
114 |
# badRequest (400)
|
115 |
|
116 |
x_auth_user = request.META.get('HTTP_X_AUTH_USER')
|
117 |
x_auth_key = request.META.get('HTTP_X_AUTH_KEY')
|
118 |
if not x_auth_user or not x_auth_key: |
119 |
raise BadRequest('Missing X-Auth-User or X-Auth-Key header') |
120 |
response = HttpResponse(status=204)
|
121 |
inv_auth_tokens = dict((v, k) for k, v in settings.AUTH_TOKENS.items()) |
122 |
response['X-Auth-Token'] = inv_auth_tokens.get(x_auth_user, '0000') |
123 |
response['X-Storage-Url'] = os.path.join(request.build_absolute_uri(),
|
124 |
x_auth_user) |
125 |
return response
|
126 |
|
127 |
@api_method('HEAD') |
128 |
def account_meta(request, v_account): |
129 |
# Normal Response Codes: 204
|
130 |
# Error Response Codes: serviceUnavailable (503),
|
131 |
# unauthorized (401),
|
132 |
# badRequest (400)
|
133 |
|
134 |
until = get_int_parameter(request.GET.get('until'))
|
135 |
try:
|
136 |
meta = backend.get_account_meta(request.user, v_account, until) |
137 |
groups = backend.get_account_groups(request.user, v_account) |
138 |
except NotAllowedError:
|
139 |
raise Unauthorized('Access denied') |
140 |
|
141 |
response = HttpResponse(status=204)
|
142 |
put_account_headers(response, meta, groups) |
143 |
return response
|
144 |
|
145 |
@api_method('POST') |
146 |
def account_update(request, v_account): |
147 |
# Normal Response Codes: 202
|
148 |
# Error Response Codes: serviceUnavailable (503),
|
149 |
# unauthorized (401),
|
150 |
# badRequest (400)
|
151 |
|
152 |
meta, groups = get_account_headers(request) |
153 |
replace = True
|
154 |
if 'update' in request.GET: |
155 |
replace = False
|
156 |
if groups:
|
157 |
try:
|
158 |
backend.update_account_groups(request.user, v_account, groups, replace) |
159 |
except NotAllowedError:
|
160 |
raise Unauthorized('Access denied') |
161 |
except ValueError: |
162 |
raise BadRequest('Invalid groups header') |
163 |
try:
|
164 |
backend.update_account_meta(request.user, v_account, meta, replace) |
165 |
except NotAllowedError:
|
166 |
raise Unauthorized('Access denied') |
167 |
return HttpResponse(status=202) |
168 |
|
169 |
@api_method('GET', format_allowed=True) |
170 |
def container_list(request, v_account): |
171 |
# Normal Response Codes: 200, 204
|
172 |
# Error Response Codes: serviceUnavailable (503),
|
173 |
# itemNotFound (404),
|
174 |
# unauthorized (401),
|
175 |
# badRequest (400)
|
176 |
|
177 |
until = get_int_parameter(request.GET.get('until'))
|
178 |
try:
|
179 |
meta = backend.get_account_meta(request.user, v_account, until) |
180 |
groups = backend.get_account_groups(request.user, v_account) |
181 |
except NotAllowedError:
|
182 |
raise Unauthorized('Access denied') |
183 |
|
184 |
validate_modification_preconditions(request, meta) |
185 |
|
186 |
response = HttpResponse() |
187 |
put_account_headers(response, meta, groups) |
188 |
|
189 |
marker = request.GET.get('marker')
|
190 |
limit = request.GET.get('limit')
|
191 |
if limit:
|
192 |
try:
|
193 |
limit = int(limit)
|
194 |
if limit <= 0: |
195 |
raise ValueError |
196 |
except ValueError: |
197 |
limit = 10000
|
198 |
|
199 |
try:
|
200 |
containers = backend.list_containers(request.user, v_account, marker, limit, until) |
201 |
except NotAllowedError:
|
202 |
raise Unauthorized('Access denied') |
203 |
except NameError: |
204 |
containers = [] |
205 |
|
206 |
if request.serialization == 'text': |
207 |
if len(containers) == 0: |
208 |
# The cloudfiles python bindings expect 200 if json/xml.
|
209 |
response.status_code = 204
|
210 |
return response
|
211 |
response.status_code = 200
|
212 |
response.content = '\n'.join([x[0] for x in containers]) + '\n' |
213 |
return response
|
214 |
|
215 |
container_meta = [] |
216 |
for x in containers: |
217 |
if x[1] is not None: |
218 |
try:
|
219 |
meta = backend.get_container_meta(request.user, v_account, x[0], until)
|
220 |
policy = backend.get_container_policy(request.user, v_account, x[0])
|
221 |
except NotAllowedError:
|
222 |
raise Unauthorized('Access denied') |
223 |
except NameError: |
224 |
pass
|
225 |
else:
|
226 |
for k, v in policy.iteritems(): |
227 |
meta['X-Container-Policy-' + k] = v
|
228 |
container_meta.append(printable_header_dict(meta)) |
229 |
if request.serialization == 'xml': |
230 |
data = render_to_string('containers.xml', {'account': v_account, 'containers': container_meta}) |
231 |
elif request.serialization == 'json': |
232 |
data = json.dumps(container_meta) |
233 |
response.status_code = 200
|
234 |
response.content = data |
235 |
return response
|
236 |
|
237 |
@api_method('HEAD') |
238 |
def container_meta(request, v_account, v_container): |
239 |
# Normal Response Codes: 204
|
240 |
# Error Response Codes: serviceUnavailable (503),
|
241 |
# itemNotFound (404),
|
242 |
# unauthorized (401),
|
243 |
# badRequest (400)
|
244 |
|
245 |
until = get_int_parameter(request.GET.get('until'))
|
246 |
try:
|
247 |
meta = backend.get_container_meta(request.user, v_account, v_container, until) |
248 |
meta['object_meta'] = backend.list_object_meta(request.user, v_account, v_container, until)
|
249 |
policy = backend.get_container_policy(request.user, v_account, v_container) |
250 |
except NotAllowedError:
|
251 |
raise Unauthorized('Access denied') |
252 |
except NameError: |
253 |
raise ItemNotFound('Container does not exist') |
254 |
|
255 |
response = HttpResponse(status=204)
|
256 |
put_container_headers(response, meta, policy) |
257 |
return response
|
258 |
|
259 |
@api_method('PUT') |
260 |
def container_create(request, v_account, v_container): |
261 |
# Normal Response Codes: 201, 202
|
262 |
# Error Response Codes: serviceUnavailable (503),
|
263 |
# itemNotFound (404),
|
264 |
# unauthorized (401),
|
265 |
# badRequest (400)
|
266 |
|
267 |
meta, policy = get_container_headers(request) |
268 |
|
269 |
try:
|
270 |
backend.put_container(request.user, v_account, v_container, policy) |
271 |
ret = 201
|
272 |
except NotAllowedError:
|
273 |
raise Unauthorized('Access denied') |
274 |
except NameError: |
275 |
ret = 202
|
276 |
|
277 |
if len(meta) > 0: |
278 |
try:
|
279 |
backend.update_container_meta(request.user, v_account, v_container, meta, replace=True)
|
280 |
except NotAllowedError:
|
281 |
raise Unauthorized('Access denied') |
282 |
except NameError: |
283 |
raise ItemNotFound('Container does not exist') |
284 |
|
285 |
return HttpResponse(status=ret)
|
286 |
|
287 |
@api_method('POST') |
288 |
def container_update(request, v_account, v_container): |
289 |
# Normal Response Codes: 202
|
290 |
# Error Response Codes: serviceUnavailable (503),
|
291 |
# itemNotFound (404),
|
292 |
# unauthorized (401),
|
293 |
# badRequest (400)
|
294 |
|
295 |
meta, policy = get_container_headers(request) |
296 |
replace = True
|
297 |
if 'update' in request.GET: |
298 |
replace = False
|
299 |
if policy:
|
300 |
try:
|
301 |
backend.update_container_policy(request.user, v_account, v_container, policy, replace) |
302 |
except NotAllowedError:
|
303 |
raise Unauthorized('Access denied') |
304 |
except NameError: |
305 |
raise ItemNotFound('Container does not exist') |
306 |
except ValueError: |
307 |
raise BadRequest('Invalid policy header') |
308 |
try:
|
309 |
backend.update_container_meta(request.user, v_account, v_container, meta, replace) |
310 |
except NotAllowedError:
|
311 |
raise Unauthorized('Access denied') |
312 |
except NameError: |
313 |
raise ItemNotFound('Container does not exist') |
314 |
return HttpResponse(status=202) |
315 |
|
316 |
@api_method('DELETE') |
317 |
def container_delete(request, v_account, v_container): |
318 |
# Normal Response Codes: 204
|
319 |
# Error Response Codes: serviceUnavailable (503),
|
320 |
# conflict (409),
|
321 |
# itemNotFound (404),
|
322 |
# unauthorized (401),
|
323 |
# badRequest (400)
|
324 |
|
325 |
try:
|
326 |
backend.delete_container(request.user, v_account, v_container) |
327 |
except NotAllowedError:
|
328 |
raise Unauthorized('Access denied') |
329 |
except NameError: |
330 |
raise ItemNotFound('Container does not exist') |
331 |
except IndexError: |
332 |
raise Conflict('Container is not empty') |
333 |
return HttpResponse(status=204) |
334 |
|
335 |
@api_method('GET', format_allowed=True) |
336 |
def object_list(request, v_account, v_container): |
337 |
# Normal Response Codes: 200, 204
|
338 |
# Error Response Codes: serviceUnavailable (503),
|
339 |
# itemNotFound (404),
|
340 |
# unauthorized (401),
|
341 |
# badRequest (400)
|
342 |
|
343 |
until = get_int_parameter(request.GET.get('until'))
|
344 |
try:
|
345 |
meta = backend.get_container_meta(request.user, v_account, v_container, until) |
346 |
meta['object_meta'] = backend.list_object_meta(request.user, v_account, v_container, until)
|
347 |
policy = backend.get_container_policy(request.user, v_account, v_container) |
348 |
except NotAllowedError:
|
349 |
raise Unauthorized('Access denied') |
350 |
except NameError: |
351 |
raise ItemNotFound('Container does not exist') |
352 |
|
353 |
validate_modification_preconditions(request, meta) |
354 |
|
355 |
response = HttpResponse() |
356 |
put_container_headers(response, meta, policy) |
357 |
|
358 |
path = request.GET.get('path')
|
359 |
prefix = request.GET.get('prefix')
|
360 |
delimiter = request.GET.get('delimiter')
|
361 |
|
362 |
# Path overrides prefix and delimiter.
|
363 |
virtual = True
|
364 |
if path:
|
365 |
prefix = path |
366 |
delimiter = '/'
|
367 |
virtual = False
|
368 |
|
369 |
# Naming policy.
|
370 |
if prefix and delimiter: |
371 |
prefix = prefix + delimiter |
372 |
if not prefix: |
373 |
prefix = ''
|
374 |
prefix = prefix.lstrip('/')
|
375 |
|
376 |
marker = request.GET.get('marker')
|
377 |
limit = request.GET.get('limit')
|
378 |
if limit:
|
379 |
try:
|
380 |
limit = int(limit)
|
381 |
if limit <= 0: |
382 |
raise ValueError |
383 |
except ValueError: |
384 |
limit = 10000
|
385 |
|
386 |
keys = request.GET.get('meta')
|
387 |
if keys:
|
388 |
keys = keys.split(',')
|
389 |
keys = [format_header_key('X-Object-Meta-' + x.strip()) for x in keys if x.strip() != ''] |
390 |
else:
|
391 |
keys = [] |
392 |
|
393 |
try:
|
394 |
objects = backend.list_objects(request.user, v_account, v_container, prefix, delimiter, marker, limit, virtual, keys, until) |
395 |
except NotAllowedError:
|
396 |
raise Unauthorized('Access denied') |
397 |
except NameError: |
398 |
raise ItemNotFound('Container does not exist') |
399 |
|
400 |
if request.serialization == 'text': |
401 |
if len(objects) == 0: |
402 |
# The cloudfiles python bindings expect 200 if json/xml.
|
403 |
response.status_code = 204
|
404 |
return response
|
405 |
response.status_code = 200
|
406 |
response.content = '\n'.join([x[0] for x in objects]) + '\n' |
407 |
return response
|
408 |
|
409 |
object_meta = [] |
410 |
for x in objects: |
411 |
if x[1] is None: |
412 |
# Virtual objects/directories.
|
413 |
object_meta.append({'subdir': x[0]}) |
414 |
else:
|
415 |
try:
|
416 |
meta = backend.get_object_meta(request.user, v_account, v_container, x[0], x[1]) |
417 |
if until is None: |
418 |
permissions = backend.get_object_permissions(request.user, v_account, v_container, x[0])
|
419 |
public = backend.get_object_public(request.user, v_account, v_container, x[0])
|
420 |
else:
|
421 |
permissions = None
|
422 |
public = None
|
423 |
except NotAllowedError:
|
424 |
raise Unauthorized('Access denied') |
425 |
except NameError: |
426 |
pass
|
427 |
else:
|
428 |
update_sharing_meta(permissions, v_account, v_container, x[0], meta)
|
429 |
update_public_meta(public, meta) |
430 |
object_meta.append(printable_header_dict(meta)) |
431 |
if request.serialization == 'xml': |
432 |
data = render_to_string('objects.xml', {'container': v_container, 'objects': object_meta}) |
433 |
elif request.serialization == 'json': |
434 |
data = json.dumps(object_meta) |
435 |
response.status_code = 200
|
436 |
response.content = data |
437 |
return response
|
438 |
|
439 |
@api_method('HEAD') |
440 |
def object_meta(request, v_account, v_container, v_object): |
441 |
# Normal Response Codes: 204
|
442 |
# Error Response Codes: serviceUnavailable (503),
|
443 |
# itemNotFound (404),
|
444 |
# unauthorized (401),
|
445 |
# badRequest (400)
|
446 |
|
447 |
version = request.GET.get('version')
|
448 |
try:
|
449 |
meta = backend.get_object_meta(request.user, v_account, v_container, v_object, version) |
450 |
if version is None: |
451 |
permissions = backend.get_object_permissions(request.user, v_account, v_container, v_object) |
452 |
public = backend.get_object_public(request.user, v_account, v_container, v_object) |
453 |
else:
|
454 |
permissions = None
|
455 |
public = None
|
456 |
except NotAllowedError:
|
457 |
raise Unauthorized('Access denied') |
458 |
except NameError: |
459 |
raise ItemNotFound('Object does not exist') |
460 |
except IndexError: |
461 |
raise ItemNotFound('Version does not exist') |
462 |
|
463 |
update_manifest_meta(request, v_account, meta) |
464 |
update_sharing_meta(permissions, v_account, v_container, v_object, meta) |
465 |
update_public_meta(public, meta) |
466 |
|
467 |
response = HttpResponse(status=200)
|
468 |
put_object_headers(response, meta) |
469 |
return response
|
470 |
|
471 |
@api_method('GET', format_allowed=True) |
472 |
def object_read(request, v_account, v_container, v_object): |
473 |
# Normal Response Codes: 200, 206
|
474 |
# Error Response Codes: serviceUnavailable (503),
|
475 |
# rangeNotSatisfiable (416),
|
476 |
# preconditionFailed (412),
|
477 |
# itemNotFound (404),
|
478 |
# unauthorized (401),
|
479 |
# badRequest (400),
|
480 |
# notModified (304)
|
481 |
|
482 |
version = request.GET.get('version')
|
483 |
|
484 |
# Reply with the version list. Do this first, as the object may be deleted.
|
485 |
if version == 'list': |
486 |
if request.serialization == 'text': |
487 |
raise BadRequest('No format specified for version list.') |
488 |
|
489 |
try:
|
490 |
v = backend.list_versions(request.user, v_account, v_container, v_object) |
491 |
except NotAllowedError:
|
492 |
raise Unauthorized('Access denied') |
493 |
d = {'versions': v}
|
494 |
if request.serialization == 'xml': |
495 |
d['object'] = v_object
|
496 |
data = render_to_string('versions.xml', d)
|
497 |
elif request.serialization == 'json': |
498 |
data = json.dumps(d) |
499 |
|
500 |
response = HttpResponse(data, status=200)
|
501 |
response['Content-Length'] = len(data) |
502 |
return response
|
503 |
|
504 |
try:
|
505 |
meta = backend.get_object_meta(request.user, v_account, v_container, v_object, version) |
506 |
if version is None: |
507 |
permissions = backend.get_object_permissions(request.user, v_account, v_container, v_object) |
508 |
public = backend.get_object_public(request.user, v_account, v_container, v_object) |
509 |
else:
|
510 |
permissions = None
|
511 |
public = None
|
512 |
except NotAllowedError:
|
513 |
raise Unauthorized('Access denied') |
514 |
except NameError: |
515 |
raise ItemNotFound('Object does not exist') |
516 |
except IndexError: |
517 |
raise ItemNotFound('Version does not exist') |
518 |
|
519 |
update_manifest_meta(request, v_account, meta) |
520 |
update_sharing_meta(permissions, v_account, v_container, v_object, meta) |
521 |
update_public_meta(public, meta) |
522 |
|
523 |
# Evaluate conditions.
|
524 |
validate_modification_preconditions(request, meta) |
525 |
try:
|
526 |
validate_matching_preconditions(request, meta) |
527 |
except NotModified:
|
528 |
response = HttpResponse(status=304)
|
529 |
response['ETag'] = meta['hash'] |
530 |
return response
|
531 |
|
532 |
sizes = [] |
533 |
hashmaps = [] |
534 |
if 'X-Object-Manifest' in meta: |
535 |
try:
|
536 |
src_container, src_name = split_container_object_string('/' + meta['X-Object-Manifest']) |
537 |
objects = backend.list_objects(request.user, v_account, src_container, prefix=src_name, virtual=False)
|
538 |
except NotAllowedError:
|
539 |
raise Unauthorized('Access denied') |
540 |
except ValueError: |
541 |
raise BadRequest('Invalid X-Object-Manifest header') |
542 |
except NameError: |
543 |
raise ItemNotFound('Container does not exist') |
544 |
|
545 |
try:
|
546 |
for x in objects: |
547 |
s, h = backend.get_object_hashmap(request.user, v_account, src_container, x[0], x[1]) |
548 |
sizes.append(s) |
549 |
hashmaps.append(h) |
550 |
except NotAllowedError:
|
551 |
raise Unauthorized('Access denied') |
552 |
except NameError: |
553 |
raise ItemNotFound('Object does not exist') |
554 |
except IndexError: |
555 |
raise ItemNotFound('Version does not exist') |
556 |
else:
|
557 |
try:
|
558 |
s, h = backend.get_object_hashmap(request.user, v_account, v_container, v_object, version) |
559 |
sizes.append(s) |
560 |
hashmaps.append(h) |
561 |
except NotAllowedError:
|
562 |
raise Unauthorized('Access denied') |
563 |
except NameError: |
564 |
raise ItemNotFound('Object does not exist') |
565 |
except IndexError: |
566 |
raise ItemNotFound('Version does not exist') |
567 |
|
568 |
# Reply with the hashmap.
|
569 |
if request.serialization != 'text': |
570 |
size = sum(sizes)
|
571 |
hashmap = sum(hashmaps, [])
|
572 |
d = {'block_size': backend.block_size, 'block_hash': backend.hash_algorithm, 'bytes': size, 'hashes': hashmap} |
573 |
if request.serialization == 'xml': |
574 |
d['object'] = v_object
|
575 |
data = render_to_string('hashes.xml', d)
|
576 |
elif request.serialization == 'json': |
577 |
data = json.dumps(d) |
578 |
|
579 |
response = HttpResponse(data, status=200)
|
580 |
put_object_headers(response, meta) |
581 |
response['Content-Length'] = len(data) |
582 |
return response
|
583 |
|
584 |
return object_data_response(request, sizes, hashmaps, meta)
|
585 |
|
586 |
@api_method('PUT', format_allowed=True) |
587 |
def object_write(request, v_account, v_container, v_object): |
588 |
# Normal Response Codes: 201
|
589 |
# Error Response Codes: serviceUnavailable (503),
|
590 |
# unprocessableEntity (422),
|
591 |
# lengthRequired (411),
|
592 |
# conflict (409),
|
593 |
# itemNotFound (404),
|
594 |
# unauthorized (401),
|
595 |
# badRequest (400)
|
596 |
|
597 |
if not request.GET.get('format'): |
598 |
request.serialization = 'text'
|
599 |
|
600 |
copy_from = request.META.get('HTTP_X_COPY_FROM')
|
601 |
move_from = request.META.get('HTTP_X_MOVE_FROM')
|
602 |
if copy_from or move_from: |
603 |
content_length = get_content_length(request) # Required by the API.
|
604 |
|
605 |
if move_from:
|
606 |
try:
|
607 |
src_container, src_name = split_container_object_string(move_from) |
608 |
except ValueError: |
609 |
raise BadRequest('Invalid X-Move-From header') |
610 |
copy_or_move_object(request, v_account, src_container, src_name, v_container, v_object, move=True)
|
611 |
else:
|
612 |
try:
|
613 |
src_container, src_name = split_container_object_string(copy_from) |
614 |
except ValueError: |
615 |
raise BadRequest('Invalid X-Copy-From header') |
616 |
copy_or_move_object(request, v_account, src_container, src_name, v_container, v_object, move=False)
|
617 |
return HttpResponse(status=201) |
618 |
|
619 |
meta, permissions, public = get_object_headers(request) |
620 |
content_length = -1
|
621 |
if request.META.get('HTTP_TRANSFER_ENCODING') != 'chunked': |
622 |
content_length = get_content_length(request) |
623 |
# Should be BadRequest, but API says otherwise.
|
624 |
if 'Content-Type' not in meta: |
625 |
raise LengthRequired('Missing Content-Type header') |
626 |
|
627 |
if request.serialization == 'json': |
628 |
data = ''
|
629 |
sock = raw_input_socket(request) |
630 |
for block in socket_read_iterator(sock, content_length, backend.block_size): |
631 |
data = '%s%s' % (data, block)
|
632 |
d = json.loads(data) |
633 |
if not hasattr(d, '__getitem__'): |
634 |
raise BadRequest('Invalid data formating') |
635 |
try:
|
636 |
hashmap = d['hashes']
|
637 |
size = d['bytes']
|
638 |
except KeyError: |
639 |
raise BadRequest('Invalid data formatting') |
640 |
meta.update({'hash': hashmap_hash(hashmap)}) # Update ETag. |
641 |
elif request.serialization == 'xml': |
642 |
# TODO: Support xml.
|
643 |
raise BadRequest('Format xml is not supported') |
644 |
else:
|
645 |
md5 = hashlib.md5() |
646 |
size = 0
|
647 |
hashmap = [] |
648 |
sock = raw_input_socket(request) |
649 |
for data in socket_read_iterator(sock, content_length, backend.block_size): |
650 |
# TODO: Raise 408 (Request Timeout) if this takes too long.
|
651 |
# TODO: Raise 499 (Client Disconnect) if a length is defined and we stop before getting this much data.
|
652 |
size += len(data)
|
653 |
hashmap.append(backend.put_block(data)) |
654 |
md5.update(data) |
655 |
|
656 |
meta['hash'] = md5.hexdigest().lower()
|
657 |
etag = request.META.get('HTTP_ETAG')
|
658 |
if etag and parse_etags(etag)[0].lower() != meta['hash']: |
659 |
raise UnprocessableEntity('Object ETag does not match') |
660 |
|
661 |
try:
|
662 |
backend.update_object_hashmap(request.user, v_account, v_container, v_object, size, hashmap, meta, True, permissions)
|
663 |
except NotAllowedError:
|
664 |
raise Unauthorized('Access denied') |
665 |
except IndexError, e: |
666 |
raise Conflict(json.dumps(e.data))
|
667 |
except NameError: |
668 |
raise ItemNotFound('Container does not exist') |
669 |
except ValueError: |
670 |
raise BadRequest('Invalid sharing header') |
671 |
except AttributeError, e: |
672 |
raise Conflict(json.dumps(e.data))
|
673 |
if public is not None: |
674 |
try:
|
675 |
backend.update_object_public(request.user, v_account, v_container, v_object, public) |
676 |
except NotAllowedError:
|
677 |
raise Unauthorized('Access denied') |
678 |
except NameError: |
679 |
raise ItemNotFound('Object does not exist') |
680 |
|
681 |
response = HttpResponse(status=201)
|
682 |
response['ETag'] = meta['hash'] |
683 |
return response
|
684 |
|
685 |
@api_method('POST') |
686 |
def object_write_form(request, v_account, v_container, v_object): |
687 |
# Normal Response Codes: 201
|
688 |
# Error Response Codes: serviceUnavailable (503),
|
689 |
# itemNotFound (404),
|
690 |
# unauthorized (401),
|
691 |
# badRequest (400)
|
692 |
|
693 |
if not request.FILES.has_key('X-Object-Data'): |
694 |
raise BadRequest('Missing X-Object-Data field') |
695 |
file = request.FILES['X-Object-Data']
|
696 |
|
697 |
meta = {} |
698 |
meta['Content-Type'] = file.content_type |
699 |
|
700 |
md5 = hashlib.md5() |
701 |
size = 0
|
702 |
hashmap = [] |
703 |
for data in file.chunks(backend.block_size): |
704 |
size += len(data)
|
705 |
hashmap.append(backend.put_block(data)) |
706 |
md5.update(data) |
707 |
|
708 |
meta['hash'] = md5.hexdigest().lower()
|
709 |
|
710 |
try:
|
711 |
backend.update_object_hashmap(request.user, v_account, v_container, v_object, size, hashmap, meta, True)
|
712 |
except NotAllowedError:
|
713 |
raise Unauthorized('Access denied') |
714 |
except NameError: |
715 |
raise ItemNotFound('Container does not exist') |
716 |
|
717 |
response = HttpResponse(status=201)
|
718 |
response['ETag'] = meta['hash'] |
719 |
return response
|
720 |
|
721 |
@api_method('COPY') |
722 |
def object_copy(request, v_account, v_container, v_object): |
723 |
# Normal Response Codes: 201
|
724 |
# Error Response Codes: serviceUnavailable (503),
|
725 |
# itemNotFound (404),
|
726 |
# unauthorized (401),
|
727 |
# badRequest (400)
|
728 |
|
729 |
dest_path = request.META.get('HTTP_DESTINATION')
|
730 |
if not dest_path: |
731 |
raise BadRequest('Missing Destination header') |
732 |
try:
|
733 |
dest_container, dest_name = split_container_object_string(dest_path) |
734 |
except ValueError: |
735 |
raise BadRequest('Invalid Destination header') |
736 |
copy_or_move_object(request, v_account, v_container, v_object, dest_container, dest_name, move=False)
|
737 |
return HttpResponse(status=201) |
738 |
|
739 |
@api_method('MOVE') |
740 |
def object_move(request, v_account, v_container, v_object): |
741 |
# Normal Response Codes: 201
|
742 |
# Error Response Codes: serviceUnavailable (503),
|
743 |
# itemNotFound (404),
|
744 |
# unauthorized (401),
|
745 |
# badRequest (400)
|
746 |
|
747 |
dest_path = request.META.get('HTTP_DESTINATION')
|
748 |
if not dest_path: |
749 |
raise BadRequest('Missing Destination header') |
750 |
try:
|
751 |
dest_container, dest_name = split_container_object_string(dest_path) |
752 |
except ValueError: |
753 |
raise BadRequest('Invalid Destination header') |
754 |
copy_or_move_object(request, v_account, v_container, v_object, dest_container, dest_name, move=True)
|
755 |
return HttpResponse(status=201) |
756 |
|
757 |
@api_method('POST') |
758 |
def object_update(request, v_account, v_container, v_object): |
759 |
# Normal Response Codes: 202, 204
|
760 |
# Error Response Codes: serviceUnavailable (503),
|
761 |
# conflict (409),
|
762 |
# itemNotFound (404),
|
763 |
# unauthorized (401),
|
764 |
# badRequest (400)
|
765 |
|
766 |
meta, permissions, public = get_object_headers(request) |
767 |
content_type = meta.get('Content-Type')
|
768 |
if content_type:
|
769 |
del(meta['Content-Type']) # Do not allow changing the Content-Type. |
770 |
|
771 |
try:
|
772 |
prev_meta = backend.get_object_meta(request.user, v_account, v_container, v_object) |
773 |
except NotAllowedError:
|
774 |
raise Unauthorized('Access denied') |
775 |
except NameError: |
776 |
raise ItemNotFound('Object does not exist') |
777 |
# If replacing, keep previous values of 'Content-Type' and 'hash'.
|
778 |
replace = True
|
779 |
if 'update' in request.GET: |
780 |
replace = False
|
781 |
if replace:
|
782 |
for k in ('Content-Type', 'hash'): |
783 |
if k in prev_meta: |
784 |
meta[k] = prev_meta[k] |
785 |
|
786 |
# A Content-Type or X-Source-Object header indicates data updates.
|
787 |
src_object = request.META.get('HTTP_X_SOURCE_OBJECT')
|
788 |
if (not content_type or content_type != 'application/octet-stream') and not src_object: |
789 |
# Do permissions first, as it may fail easier.
|
790 |
if permissions is not None: |
791 |
try:
|
792 |
backend.update_object_permissions(request.user, v_account, v_container, v_object, permissions) |
793 |
except NotAllowedError:
|
794 |
raise Unauthorized('Access denied') |
795 |
except NameError: |
796 |
raise ItemNotFound('Object does not exist') |
797 |
except ValueError: |
798 |
raise BadRequest('Invalid sharing header') |
799 |
except AttributeError, e: |
800 |
raise Conflict(json.dumps(e.data))
|
801 |
if public is not None: |
802 |
try:
|
803 |
backend.update_object_public(request.user, v_account, v_container, v_object, public) |
804 |
except NotAllowedError:
|
805 |
raise Unauthorized('Access denied') |
806 |
except NameError: |
807 |
raise ItemNotFound('Object does not exist') |
808 |
try:
|
809 |
backend.update_object_meta(request.user, v_account, v_container, v_object, meta, replace) |
810 |
except NotAllowedError:
|
811 |
raise Unauthorized('Access denied') |
812 |
except NameError: |
813 |
raise ItemNotFound('Object does not exist') |
814 |
return HttpResponse(status=202) |
815 |
|
816 |
# Single range update. Range must be in Content-Range.
|
817 |
# Based on: http://code.google.com/p/gears/wiki/ContentRangePostProposal
|
818 |
# (with the addition that '*' is allowed for the range - will append).
|
819 |
content_range = request.META.get('HTTP_CONTENT_RANGE')
|
820 |
if not content_range: |
821 |
raise BadRequest('Missing Content-Range header') |
822 |
ranges = get_content_range(request) |
823 |
if not ranges: |
824 |
raise RangeNotSatisfiable('Invalid Content-Range header') |
825 |
|
826 |
try:
|
827 |
size, hashmap = backend.get_object_hashmap(request.user, v_account, v_container, v_object) |
828 |
except NotAllowedError:
|
829 |
raise Unauthorized('Access denied') |
830 |
except NameError: |
831 |
raise ItemNotFound('Object does not exist') |
832 |
|
833 |
offset, length, total = ranges |
834 |
if offset is None: |
835 |
offset = size |
836 |
elif offset > size:
|
837 |
raise RangeNotSatisfiable('Supplied offset is beyond object limits') |
838 |
if src_object:
|
839 |
src_container, src_name = split_container_object_string(src_object) |
840 |
src_version = request.META.get('HTTP_X_SOURCE_VERSION')
|
841 |
try:
|
842 |
src_size, src_hashmap = backend.get_object_hashmap(request.user, v_account, src_container, src_name, src_version) |
843 |
except NotAllowedError:
|
844 |
raise Unauthorized('Access denied') |
845 |
except NameError: |
846 |
raise ItemNotFound('Source object does not exist') |
847 |
|
848 |
if length is None: |
849 |
length = src_size |
850 |
elif length > src_size:
|
851 |
raise BadRequest('Object length is smaller than range length') |
852 |
else:
|
853 |
# Require either a Content-Length, or 'chunked' Transfer-Encoding.
|
854 |
content_length = -1
|
855 |
if request.META.get('HTTP_TRANSFER_ENCODING') != 'chunked': |
856 |
content_length = get_content_length(request) |
857 |
|
858 |
if length is None: |
859 |
length = content_length |
860 |
else:
|
861 |
if content_length == -1: |
862 |
# TODO: Get up to length bytes in chunks.
|
863 |
length = content_length |
864 |
elif length != content_length:
|
865 |
raise BadRequest('Content length does not match range length') |
866 |
if total is not None and (total != size or offset >= size or (length > 0 and offset + length >= size)): |
867 |
raise RangeNotSatisfiable('Supplied range will change provided object limits') |
868 |
|
869 |
dest_bytes = request.META.get('HTTP_X_OBJECT_BYTES')
|
870 |
if dest_bytes is not None: |
871 |
dest_bytes = get_int_parameter(dest_bytes) |
872 |
if dest_bytes is None: |
873 |
raise BadRequest('Invalid X-Object-Bytes header') |
874 |
|
875 |
if src_object:
|
876 |
if offset % backend.block_size == 0: |
877 |
# Update the hashes only.
|
878 |
sbi = 0
|
879 |
while length > 0: |
880 |
bi = int(offset / backend.block_size)
|
881 |
bl = min(length, backend.block_size)
|
882 |
if bi < len(hashmap): |
883 |
if bl == backend.block_size:
|
884 |
hashmap[bi] = src_hashmap[sbi] |
885 |
else:
|
886 |
data = backend.get_block(src_hashmap[sbi]) |
887 |
hashmap[bi] = backend.update_block(hashmap[bi], data[:bl], 0)
|
888 |
else:
|
889 |
hashmap.append(src_hashmap[sbi]) |
890 |
offset += bl |
891 |
length -= bl |
892 |
sbi += 1
|
893 |
else:
|
894 |
data = ''
|
895 |
sbi = 0
|
896 |
while length > 0: |
897 |
data += backend.get_block(src_hashmap[sbi]) |
898 |
if length < backend.block_size:
|
899 |
data = data[:length] |
900 |
bytes = put_object_block(hashmap, data, offset) |
901 |
offset += bytes
|
902 |
data = data[bytes:]
|
903 |
length -= bytes
|
904 |
sbi += 1
|
905 |
else:
|
906 |
sock = raw_input_socket(request) |
907 |
data = ''
|
908 |
for d in socket_read_iterator(sock, length, backend.block_size): |
909 |
# TODO: Raise 408 (Request Timeout) if this takes too long.
|
910 |
# TODO: Raise 499 (Client Disconnect) if a length is defined and we stop before getting this much data.
|
911 |
data += d |
912 |
bytes = put_object_block(hashmap, data, offset) |
913 |
offset += bytes
|
914 |
data = data[bytes:]
|
915 |
if len(data) > 0: |
916 |
put_object_block(hashmap, data, offset) |
917 |
|
918 |
if offset > size:
|
919 |
size = offset |
920 |
if dest_bytes is not None and dest_bytes < size: |
921 |
size = dest_bytes |
922 |
hashmap = hashmap[:(int((size - 1) / backend.block_size) + 1)] |
923 |
meta.update({'hash': hashmap_hash(hashmap)}) # Update ETag. |
924 |
try:
|
925 |
backend.update_object_hashmap(request.user, v_account, v_container, v_object, size, hashmap, meta, replace, permissions) |
926 |
except NotAllowedError:
|
927 |
raise Unauthorized('Access denied') |
928 |
except NameError: |
929 |
raise ItemNotFound('Container does not exist') |
930 |
except ValueError: |
931 |
raise BadRequest('Invalid sharing header') |
932 |
except AttributeError, e: |
933 |
raise Conflict(json.dumps(e.data))
|
934 |
if public is not None: |
935 |
try:
|
936 |
backend.update_object_public(request.user, v_account, v_container, v_object, public) |
937 |
except NotAllowedError:
|
938 |
raise Unauthorized('Access denied') |
939 |
except NameError: |
940 |
raise ItemNotFound('Object does not exist') |
941 |
|
942 |
response = HttpResponse(status=204)
|
943 |
response['ETag'] = meta['hash'] |
944 |
return response
|
945 |
|
946 |
@api_method('DELETE') |
947 |
def object_delete(request, v_account, v_container, v_object): |
948 |
# Normal Response Codes: 204
|
949 |
# Error Response Codes: serviceUnavailable (503),
|
950 |
# itemNotFound (404),
|
951 |
# unauthorized (401),
|
952 |
# badRequest (400)
|
953 |
|
954 |
try:
|
955 |
backend.delete_object(request.user, v_account, v_container, v_object) |
956 |
except NotAllowedError:
|
957 |
raise Unauthorized('Access denied') |
958 |
except NameError: |
959 |
raise ItemNotFound('Object does not exist') |
960 |
return HttpResponse(status=204) |
961 |
|
962 |
@api_method()
|
963 |
def method_not_allowed(request): |
964 |
raise BadRequest('Method not allowed') |