root / snf-pithos-app / pithos / api / util.py @ e161c24f
History | View | Annotate | Download (41.5 kB)
1 | 2e662088 | Antony Chazapis | # Copyright 2011-2012 GRNET S.A. All rights reserved.
|
---|---|---|---|
2 | 2715ade4 | Sofia Papagiannaki | #
|
3 | 5635f9ef | Antony Chazapis | # Redistribution and use in source and binary forms, with or
|
4 | 5635f9ef | Antony Chazapis | # without modification, are permitted provided that the following
|
5 | 5635f9ef | Antony Chazapis | # conditions are met:
|
6 | 2715ade4 | Sofia Papagiannaki | #
|
7 | 5635f9ef | Antony Chazapis | # 1. Redistributions of source code must retain the above
|
8 | 5635f9ef | Antony Chazapis | # copyright notice, this list of conditions and the following
|
9 | 5635f9ef | Antony Chazapis | # disclaimer.
|
10 | 2715ade4 | Sofia Papagiannaki | #
|
11 | 5635f9ef | Antony Chazapis | # 2. Redistributions in binary form must reproduce the above
|
12 | 5635f9ef | Antony Chazapis | # copyright notice, this list of conditions and the following
|
13 | 5635f9ef | Antony Chazapis | # disclaimer in the documentation and/or other materials
|
14 | 5635f9ef | Antony Chazapis | # provided with the distribution.
|
15 | 2715ade4 | Sofia Papagiannaki | #
|
16 | 5635f9ef | Antony Chazapis | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
|
17 | 5635f9ef | Antony Chazapis | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
18 | 5635f9ef | Antony Chazapis | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
19 | 5635f9ef | Antony Chazapis | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
|
20 | 5635f9ef | Antony Chazapis | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
21 | 5635f9ef | Antony Chazapis | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
22 | 5635f9ef | Antony Chazapis | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
23 | 5635f9ef | Antony Chazapis | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
24 | 5635f9ef | Antony Chazapis | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
25 | 5635f9ef | Antony Chazapis | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
26 | 5635f9ef | Antony Chazapis | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
27 | 5635f9ef | Antony Chazapis | # POSSIBILITY OF SUCH DAMAGE.
|
28 | 2715ade4 | Sofia Papagiannaki | #
|
29 | 5635f9ef | Antony Chazapis | # The views and conclusions contained in the software and
|
30 | 5635f9ef | Antony Chazapis | # documentation are those of the authors and should not be
|
31 | 5635f9ef | Antony Chazapis | # interpreted as representing official policies, either expressed
|
32 | 5635f9ef | Antony Chazapis | # or implied, of GRNET S.A.
|
33 | 5635f9ef | Antony Chazapis | |
34 | b956618e | Antony Chazapis | from functools import wraps |
35 | 65bbcd43 | Christos Stavrakakis | from datetime import datetime |
36 | 9fefc052 | Antony Chazapis | from urllib import quote, unquote |
37 | b956618e | Antony Chazapis | |
38 | 48c5b124 | Sofia Papagiannaki | from django.http import (HttpResponse, HttpResponseRedirect, Http404, |
39 | 48c5b124 | Sofia Papagiannaki | HttpResponseForbidden) |
40 | 6b6b6c1e | Antony Chazapis | from django.template.loader import render_to_string |
41 | 1993fea9 | Antony Chazapis | from django.utils import simplejson as json |
42 | 22dab079 | Antony Chazapis | from django.utils.http import http_date, parse_etags |
43 | fb064032 | Antony Chazapis | from django.utils.encoding import smart_unicode, smart_str |
44 | 817890f2 | Antony Chazapis | from django.core.files.uploadhandler import FileUploadHandler |
45 | 817890f2 | Antony Chazapis | from django.core.files.uploadedfile import UploadedFile |
46 | a3fcee5b | Sofia Papagiannaki | from django.core.urlresolvers import reverse |
47 | b956618e | Antony Chazapis | |
48 | 896754a6 | Christos Stavrakakis | from snf_django.lib.api.parsedate import parse_http_date_safe, parse_http_date |
49 | 65bbcd43 | Christos Stavrakakis | from snf_django.lib import api |
50 | 65bbcd43 | Christos Stavrakakis | from snf_django.lib.api import faults, utils |
51 | 5a96180b | Antony Chazapis | |
52 | a7dff008 | Antony Chazapis | from pithos.api.settings import (BACKEND_DB_MODULE, BACKEND_DB_CONNECTION, |
53 | 761c2b3c | root | BACKEND_BLOCK_MODULE, BACKEND_BLOCK_PATH, |
54 | 761c2b3c | root | BACKEND_BLOCK_UMASK, |
55 | f4fbb0fa | Sofia Papagiannaki | BACKEND_QUEUE_MODULE, BACKEND_QUEUE_HOSTS, |
56 | b17e5550 | Giorgos Korfiatis | BACKEND_QUEUE_EXCHANGE, |
57 | 16f2673e | Sofia Papagiannaki | ASTAKOSCLIENT_POOLSIZE, |
58 | b17e5550 | Giorgos Korfiatis | SERVICE_TOKEN, |
59 | e3ff6830 | Georgios D. Tsoukalas | ASTAKOS_BASE_URL, |
60 | 29148653 | Sofia Papagiannaki | BACKEND_ACCOUNT_QUOTA, |
61 | 29148653 | Sofia Papagiannaki | BACKEND_CONTAINER_QUOTA, |
62 | 29148653 | Sofia Papagiannaki | BACKEND_VERSIONING, BACKEND_FREE_VERSIONING, |
63 | 74cbb94a | Sofia Papagiannaki | BACKEND_POOL_ENABLED, BACKEND_POOL_SIZE, |
64 | 369a7b41 | Sofia Papagiannaki | BACKEND_BLOCK_SIZE, BACKEND_HASH_ALGORITHM, |
65 | 47462eda | Filippos Giannakos | RADOS_STORAGE, RADOS_POOL_BLOCKS, |
66 | 56f3c759 | Sofia Papagiannaki | RADOS_POOL_MAPS, TRANSLATE_UUIDS, |
67 | 133e3fcf | Sofia Papagiannaki | PUBLIC_URL_SECURITY, PUBLIC_URL_ALPHABET, |
68 | 48c5b124 | Sofia Papagiannaki | COOKIE_NAME, BASE_HOST, UPDATE_MD5, LOGIN_URL) |
69 | d4e4e501 | Christos Stavrakakis | |
70 | 02de6286 | Sofia Papagiannaki | from pithos.api.resources import resources |
71 | 74cbb94a | Sofia Papagiannaki | from pithos.backends import connect_backend |
72 | 32454501 | Sofia Papagiannaki | from pithos.backends.base import (NotAllowedError, QuotaError, ItemNotExists, |
73 | 32454501 | Sofia Papagiannaki | VersionNotExists) |
74 | a3fcee5b | Sofia Papagiannaki | |
75 | a3fcee5b | Sofia Papagiannaki | from synnefo.lib import join_urls |
76 | a3fcee5b | Sofia Papagiannaki | |
77 | e6fb591c | Ilias Tsitsimpis | from astakosclient import AstakosClient |
78 | e6fb591c | Ilias Tsitsimpis | from astakosclient.errors import NoUserName, NoUUID |
79 | b956618e | Antony Chazapis | |
80 | b956618e | Antony Chazapis | import logging |
81 | 22dab079 | Antony Chazapis | import re |
82 | cbfb6636 | Sofia Papagiannaki | import hashlib |
83 | 7bef5750 | Antony Chazapis | import uuid |
84 | c48acbfd | Sofia Papagiannaki | import decimal |
85 | 8c793655 | Antony Chazapis | |
86 | b956618e | Antony Chazapis | logger = logging.getLogger(__name__) |
87 | b956618e | Antony Chazapis | |
88 | b956618e | Antony Chazapis | |
89 | c48acbfd | Sofia Papagiannaki | def json_encode_decimal(obj): |
90 | c48acbfd | Sofia Papagiannaki | if isinstance(obj, decimal.Decimal): |
91 | c48acbfd | Sofia Papagiannaki | return str(obj) |
92 | c48acbfd | Sofia Papagiannaki | raise TypeError(repr(obj) + " is not JSON serializable") |
93 | c48acbfd | Sofia Papagiannaki | |
94 | 2715ade4 | Sofia Papagiannaki | |
95 | 804e8fe7 | Antony Chazapis | def rename_meta_key(d, old, new): |
96 | 804e8fe7 | Antony Chazapis | if old not in d: |
97 | 804e8fe7 | Antony Chazapis | return
|
98 | 804e8fe7 | Antony Chazapis | d[new] = d[old] |
99 | 804e8fe7 | Antony Chazapis | del(d[old])
|
100 | 804e8fe7 | Antony Chazapis | |
101 | 2715ade4 | Sofia Papagiannaki | |
102 | 02c0c3fa | Antony Chazapis | def printable_header_dict(d): |
103 | b956618e | Antony Chazapis | """Format a meta dictionary for printing out json/xml.
|
104 | 2715ade4 | Sofia Papagiannaki |
|
105 | 804e8fe7 | Antony Chazapis | Convert all keys to lower case and replace dashes with underscores.
|
106 | 804e8fe7 | Antony Chazapis | Format 'last_modified' timestamp.
|
107 | b956618e | Antony Chazapis | """
|
108 | 2715ade4 | Sofia Papagiannaki | |
109 | 87835e94 | Nanakos Chrysostomos | timestamps = ('last_modified', 'x_container_until_timestamp', |
110 | 87835e94 | Nanakos Chrysostomos | 'x_acount_until_timestamp')
|
111 | 87835e94 | Nanakos Chrysostomos | for timestamp in timestamps: |
112 | 87835e94 | Nanakos Chrysostomos | if timestamp in d and d[timestamp]: |
113 | 87835e94 | Nanakos Chrysostomos | d[timestamp] = utils.isoformat( |
114 | 87835e94 | Nanakos Chrysostomos | datetime.fromtimestamp(d[timestamp])) |
115 | b956618e | Antony Chazapis | return dict([(k.lower().replace('-', '_'), v) for k, v in d.iteritems()]) |
116 | b956618e | Antony Chazapis | |
117 | 2715ade4 | Sofia Papagiannaki | |
118 | 02c0c3fa | Antony Chazapis | def format_header_key(k): |
119 | 58a6c894 | Antony Chazapis | """Convert underscores to dashes and capitalize intra-dash strings."""
|
120 | b956618e | Antony Chazapis | return '-'.join([x.capitalize() for x in k.replace('_', '-').split('-')]) |
121 | b956618e | Antony Chazapis | |
122 | 2715ade4 | Sofia Papagiannaki | |
123 | 02c0c3fa | Antony Chazapis | def get_header_prefix(request, prefix): |
124 | ad0efdb3 | Ilias Tsitsimpis | """Get all prefix-* request headers in a dict.
|
125 | ad0efdb3 | Ilias Tsitsimpis | Reformat keys with format_header_key()."""
|
126 | 2715ade4 | Sofia Papagiannaki | |
127 | b956618e | Antony Chazapis | prefix = 'HTTP_' + prefix.upper().replace('-', '_') |
128 | 3ab38c43 | Antony Chazapis | # TODO: Document or remove '~' replacing.
|
129 | ad0efdb3 | Ilias Tsitsimpis | return dict([(format_header_key(k[5:]), v.replace('~', '')) |
130 | ad0efdb3 | Ilias Tsitsimpis | for k, v in request.META.iteritems() |
131 | ad0efdb3 | Ilias Tsitsimpis | if k.startswith(prefix) and len(k) > len(prefix)]) |
132 | 02c0c3fa | Antony Chazapis | |
133 | 2715ade4 | Sofia Papagiannaki | |
134 | 62bf8157 | Antony Chazapis | def check_meta_headers(meta): |
135 | 62bf8157 | Antony Chazapis | if len(meta) > 90: |
136 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Too many headers.') |
137 | 62bf8157 | Antony Chazapis | for k, v in meta.iteritems(): |
138 | 62bf8157 | Antony Chazapis | if len(k) > 128: |
139 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Header name too large.') |
140 | 62bf8157 | Antony Chazapis | if len(v) > 256: |
141 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Header value too large.') |
142 | 62bf8157 | Antony Chazapis | |
143 | 2715ade4 | Sofia Papagiannaki | |
144 | 02c0c3fa | Antony Chazapis | def get_account_headers(request): |
145 | 02c0c3fa | Antony Chazapis | meta = get_header_prefix(request, 'X-Account-Meta-')
|
146 | 62bf8157 | Antony Chazapis | check_meta_headers(meta) |
147 | 02c0c3fa | Antony Chazapis | groups = {} |
148 | 02c0c3fa | Antony Chazapis | for k, v in get_header_prefix(request, 'X-Account-Group-').iteritems(): |
149 | 02c0c3fa | Antony Chazapis | n = k[16:].lower()
|
150 | 02c0c3fa | Antony Chazapis | if '-' in n or '_' in n: |
151 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Bad characters in group name') |
152 | 02c0c3fa | Antony Chazapis | groups[n] = v.replace(' ', '').split(',') |
153 | 40d6b76d | Antony Chazapis | while '' in groups[n]: |
154 | 02c0c3fa | Antony Chazapis | groups[n].remove('')
|
155 | 02c0c3fa | Antony Chazapis | return meta, groups
|
156 | 02c0c3fa | Antony Chazapis | |
157 | 2715ade4 | Sofia Papagiannaki | |
158 | 647a5f48 | Antony Chazapis | def put_account_headers(response, meta, groups, policy): |
159 | f6c97079 | Antony Chazapis | if 'count' in meta: |
160 | f6c97079 | Antony Chazapis | response['X-Account-Container-Count'] = meta['count'] |
161 | f6c97079 | Antony Chazapis | if 'bytes' in meta: |
162 | f6c97079 | Antony Chazapis | response['X-Account-Bytes-Used'] = meta['bytes'] |
163 | d065f612 | Antony Chazapis | response['Last-Modified'] = http_date(int(meta['modified'])) |
164 | b956618e | Antony Chazapis | for k in [x for x in meta.keys() if x.startswith('X-Account-Meta-')]: |
165 | 2715ade4 | Sofia Papagiannaki | response[smart_str( |
166 | 2715ade4 | Sofia Papagiannaki | k, strings_only=True)] = smart_str(meta[k], strings_only=True) |
167 | 83dd59c5 | Antony Chazapis | if 'until_timestamp' in meta: |
168 | 2715ade4 | Sofia Papagiannaki | response['X-Account-Until-Timestamp'] = http_date(
|
169 | 2715ade4 | Sofia Papagiannaki | int(meta['until_timestamp'])) |
170 | 02c0c3fa | Antony Chazapis | for k, v in groups.iteritems(): |
171 | e7b51248 | Sofia Papagiannaki | k = smart_str(k, strings_only=True)
|
172 | e7b51248 | Sofia Papagiannaki | k = format_header_key('X-Account-Group-' + k)
|
173 | e7b51248 | Sofia Papagiannaki | v = smart_str(','.join(v), strings_only=True) |
174 | e7b51248 | Sofia Papagiannaki | response[k] = v |
175 | 647a5f48 | Antony Chazapis | for k, v in policy.iteritems(): |
176 | ad0efdb3 | Ilias Tsitsimpis | response[smart_str(format_header_key('X-Account-Policy-' + k),
|
177 | ad0efdb3 | Ilias Tsitsimpis | strings_only=True)] = smart_str(v, strings_only=True) |
178 | 647a5f48 | Antony Chazapis | |
179 | 2715ade4 | Sofia Papagiannaki | |
180 | 02c0c3fa | Antony Chazapis | def get_container_headers(request): |
181 | 02c0c3fa | Antony Chazapis | meta = get_header_prefix(request, 'X-Container-Meta-')
|
182 | 62bf8157 | Antony Chazapis | check_meta_headers(meta) |
183 | ad0efdb3 | Ilias Tsitsimpis | policy = dict([(k[19:].lower(), v.replace(' ', '')) for k, v in |
184 | ad0efdb3 | Ilias Tsitsimpis | get_header_prefix(request, |
185 | ad0efdb3 | Ilias Tsitsimpis | 'X-Container-Policy-').iteritems()])
|
186 | 3ab38c43 | Antony Chazapis | return meta, policy
|
187 | b956618e | Antony Chazapis | |
188 | 2715ade4 | Sofia Papagiannaki | |
189 | 39593b2b | Giorgos Verigakis | def put_container_headers(request, response, meta, policy): |
190 | f6c97079 | Antony Chazapis | if 'count' in meta: |
191 | f6c97079 | Antony Chazapis | response['X-Container-Object-Count'] = meta['count'] |
192 | f6c97079 | Antony Chazapis | if 'bytes' in meta: |
193 | f6c97079 | Antony Chazapis | response['X-Container-Bytes-Used'] = meta['bytes'] |
194 | 58a6c894 | Antony Chazapis | response['Last-Modified'] = http_date(int(meta['modified'])) |
195 | b956618e | Antony Chazapis | for k in [x for x in meta.keys() if x.startswith('X-Container-Meta-')]: |
196 | 2715ade4 | Sofia Papagiannaki | response[smart_str( |
197 | 2715ade4 | Sofia Papagiannaki | k, strings_only=True)] = smart_str(meta[k], strings_only=True) |
198 | 2715ade4 | Sofia Papagiannaki | l = [smart_str(x, strings_only=True) for x in meta['object_meta'] |
199 | 2715ade4 | Sofia Papagiannaki | if x.startswith('X-Object-Meta-')] |
200 | e7b51248 | Sofia Papagiannaki | response['X-Container-Object-Meta'] = ','.join([x[14:] for x in l]) |
201 | 39593b2b | Giorgos Verigakis | response['X-Container-Block-Size'] = request.backend.block_size
|
202 | 39593b2b | Giorgos Verigakis | response['X-Container-Block-Hash'] = request.backend.hash_algorithm
|
203 | 83dd59c5 | Antony Chazapis | if 'until_timestamp' in meta: |
204 | 2715ade4 | Sofia Papagiannaki | response['X-Container-Until-Timestamp'] = http_date(
|
205 | 2715ade4 | Sofia Papagiannaki | int(meta['until_timestamp'])) |
206 | 3ab38c43 | Antony Chazapis | for k, v in policy.iteritems(): |
207 | ad0efdb3 | Ilias Tsitsimpis | response[smart_str(format_header_key('X-Container-Policy-' + k),
|
208 | 29148653 | Sofia Papagiannaki | strings_only=True)] = smart_str(v,
|
209 | 29148653 | Sofia Papagiannaki | strings_only=True)
|
210 | b956618e | Antony Chazapis | |
211 | 2715ade4 | Sofia Papagiannaki | |
212 | 02c0c3fa | Antony Chazapis | def get_object_headers(request): |
213 | 66ce2ca5 | Antony Chazapis | content_type = request.META.get('CONTENT_TYPE', None) |
214 | 02c0c3fa | Antony Chazapis | meta = get_header_prefix(request, 'X-Object-Meta-')
|
215 | 62bf8157 | Antony Chazapis | check_meta_headers(meta) |
216 | b956618e | Antony Chazapis | if request.META.get('HTTP_CONTENT_ENCODING'): |
217 | b956618e | Antony Chazapis | meta['Content-Encoding'] = request.META['HTTP_CONTENT_ENCODING'] |
218 | 22dab079 | Antony Chazapis | if request.META.get('HTTP_CONTENT_DISPOSITION'): |
219 | 22dab079 | Antony Chazapis | meta['Content-Disposition'] = request.META['HTTP_CONTENT_DISPOSITION'] |
220 | b956618e | Antony Chazapis | if request.META.get('HTTP_X_OBJECT_MANIFEST'): |
221 | b956618e | Antony Chazapis | meta['X-Object-Manifest'] = request.META['HTTP_X_OBJECT_MANIFEST'] |
222 | 66ce2ca5 | Antony Chazapis | return content_type, meta, get_sharing(request), get_public(request)
|
223 | b956618e | Antony Chazapis | |
224 | 2715ade4 | Sofia Papagiannaki | |
225 | 469d0997 | Georgios D. Tsoukalas | def put_object_headers(response, meta, restricted=False, token=None): |
226 | 133e3fcf | Sofia Papagiannaki | response['ETag'] = meta['hash'] if not UPDATE_MD5 else meta['checksum'] |
227 | b956618e | Antony Chazapis | response['Content-Length'] = meta['bytes'] |
228 | 8e95eb05 | Sofia Papagiannaki | response.override_serialization = True
|
229 | 66ce2ca5 | Antony Chazapis | response['Content-Type'] = meta.get('type', 'application/octet-stream') |
230 | b956618e | Antony Chazapis | response['Last-Modified'] = http_date(int(meta['modified'])) |
231 | 3ab38c43 | Antony Chazapis | if not restricted: |
232 | 4a1c29ea | Antony Chazapis | response['X-Object-Hash'] = meta['hash'] |
233 | 37bee317 | Antony Chazapis | response['X-Object-UUID'] = meta['uuid'] |
234 | 469d0997 | Georgios D. Tsoukalas | if TRANSLATE_UUIDS:
|
235 | ad0efdb3 | Ilias Tsitsimpis | meta['modified_by'] = \
|
236 | ad0efdb3 | Ilias Tsitsimpis | retrieve_displayname(token, meta['modified_by'])
|
237 | 7273ee62 | Sofia Papagiannaki | response['X-Object-Modified-By'] = smart_str(
|
238 | 7273ee62 | Sofia Papagiannaki | meta['modified_by'], strings_only=True) |
239 | 7bef5750 | Antony Chazapis | response['X-Object-Version'] = meta['version'] |
240 | 2715ade4 | Sofia Papagiannaki | response['X-Object-Version-Timestamp'] = http_date(
|
241 | 2715ade4 | Sofia Papagiannaki | int(meta['version_timestamp'])) |
242 | 7bef5750 | Antony Chazapis | for k in [x for x in meta.keys() if x.startswith('X-Object-Meta-')]: |
243 | 2715ade4 | Sofia Papagiannaki | response[smart_str( |
244 | 2715ade4 | Sofia Papagiannaki | k, strings_only=True)] = smart_str(meta[k], strings_only=True) |
245 | 2715ade4 | Sofia Papagiannaki | for k in ( |
246 | 2715ade4 | Sofia Papagiannaki | 'Content-Encoding', 'Content-Disposition', 'X-Object-Manifest', |
247 | 2715ade4 | Sofia Papagiannaki | 'X-Object-Sharing', 'X-Object-Shared-By', 'X-Object-Allowed-To', |
248 | 2715ade4 | Sofia Papagiannaki | 'X-Object-Public'):
|
249 | 7bef5750 | Antony Chazapis | if k in meta: |
250 | e7b51248 | Sofia Papagiannaki | response[k] = smart_str(meta[k], strings_only=True)
|
251 | 7bef5750 | Antony Chazapis | else:
|
252 | c9af0703 | Antony Chazapis | for k in ('Content-Encoding', 'Content-Disposition'): |
253 | 7bef5750 | Antony Chazapis | if k in meta: |
254 | e8d003e8 | Antony Chazapis | response[k] = smart_str(meta[k], strings_only=True)
|
255 | b956618e | Antony Chazapis | |
256 | 2715ade4 | Sofia Papagiannaki | |
257 | 8cb45c13 | Antony Chazapis | def update_manifest_meta(request, v_account, meta): |
258 | 8cb45c13 | Antony Chazapis | """Update metadata if the object has an X-Object-Manifest."""
|
259 | 2715ade4 | Sofia Papagiannaki | |
260 | 8cb45c13 | Antony Chazapis | if 'X-Object-Manifest' in meta: |
261 | 4a1c29ea | Antony Chazapis | etag = ''
|
262 | 8cb45c13 | Antony Chazapis | bytes = 0
|
263 | 8cb45c13 | Antony Chazapis | try:
|
264 | 2715ade4 | Sofia Papagiannaki | src_container, src_name = split_container_object_string( |
265 | 2715ade4 | Sofia Papagiannaki | '/' + meta['X-Object-Manifest']) |
266 | 2715ade4 | Sofia Papagiannaki | objects = request.backend.list_objects( |
267 | 2715ade4 | Sofia Papagiannaki | request.user_uniq, v_account, |
268 | 2715ade4 | Sofia Papagiannaki | src_container, prefix=src_name, virtual=False)
|
269 | 8cb45c13 | Antony Chazapis | for x in objects: |
270 | 133e3fcf | Sofia Papagiannaki | src_meta = request.backend.get_object_meta( |
271 | 133e3fcf | Sofia Papagiannaki | request.user_uniq, v_account, src_container, x[0],
|
272 | 133e3fcf | Sofia Papagiannaki | 'pithos', x[1]) |
273 | 133e3fcf | Sofia Papagiannaki | etag += (src_meta['hash'] if not UPDATE_MD5 else |
274 | 133e3fcf | Sofia Papagiannaki | src_meta['checksum'])
|
275 | 8cb45c13 | Antony Chazapis | bytes += src_meta['bytes'] |
276 | 8cb45c13 | Antony Chazapis | except:
|
277 | 8cb45c13 | Antony Chazapis | # Ignore errors.
|
278 | 8cb45c13 | Antony Chazapis | return
|
279 | 8cb45c13 | Antony Chazapis | meta['bytes'] = bytes |
280 | 8cb45c13 | Antony Chazapis | md5 = hashlib.md5() |
281 | 4a1c29ea | Antony Chazapis | md5.update(etag) |
282 | 33b4e4a6 | Antony Chazapis | meta['checksum'] = md5.hexdigest().lower()
|
283 | 8cb45c13 | Antony Chazapis | |
284 | ad0efdb3 | Ilias Tsitsimpis | |
285 | 9839cc96 | root | def is_uuid(str): |
286 | 0325be55 | Sofia Papagiannaki | if str is None: |
287 | 0325be55 | Sofia Papagiannaki | return False |
288 | 9839cc96 | root | try:
|
289 | 9839cc96 | root | uuid.UUID(str)
|
290 | 9839cc96 | root | except ValueError: |
291 | 0325be55 | Sofia Papagiannaki | return False |
292 | 9839cc96 | root | else:
|
293 | ad0efdb3 | Ilias Tsitsimpis | return True |
294 | ad0efdb3 | Ilias Tsitsimpis | |
295 | 2715ade4 | Sofia Papagiannaki | |
296 | 27932481 | Sofia Papagiannaki | ##########################
|
297 | 27932481 | Sofia Papagiannaki | # USER CATALOG utilities #
|
298 | 27932481 | Sofia Papagiannaki | ##########################
|
299 | 27932481 | Sofia Papagiannaki | |
300 | 469d0997 | Georgios D. Tsoukalas | def retrieve_displayname(token, uuid, fail_silently=True): |
301 | e3ff6830 | Georgios D. Tsoukalas | astakos = AstakosClient(ASTAKOS_BASE_URL, retry=2, use_pool=True, |
302 | e3ff6830 | Georgios D. Tsoukalas | logger=logger) |
303 | e6fb591c | Ilias Tsitsimpis | try:
|
304 | e6fb591c | Ilias Tsitsimpis | displayname = astakos.get_username(token, uuid) |
305 | e6fb591c | Ilias Tsitsimpis | except NoUserName:
|
306 | e6fb591c | Ilias Tsitsimpis | if not fail_silently: |
307 | e6fb591c | Ilias Tsitsimpis | raise ItemNotExists(uuid)
|
308 | e6fb591c | Ilias Tsitsimpis | else:
|
309 | e6fb591c | Ilias Tsitsimpis | # just return the uuid
|
310 | e6fb591c | Ilias Tsitsimpis | return uuid
|
311 | 469d0997 | Georgios D. Tsoukalas | return displayname
|
312 | 32454501 | Sofia Papagiannaki | |
313 | ad0efdb3 | Ilias Tsitsimpis | |
314 | 469d0997 | Georgios D. Tsoukalas | def retrieve_displaynames(token, uuids, return_dict=False, fail_silently=True): |
315 | e3ff6830 | Georgios D. Tsoukalas | astakos = AstakosClient(ASTAKOS_BASE_URL, retry=2, use_pool=True, |
316 | e3ff6830 | Georgios D. Tsoukalas | logger=logger) |
317 | e6fb591c | Ilias Tsitsimpis | catalog = astakos.get_usernames(token, uuids) or {}
|
318 | 469d0997 | Georgios D. Tsoukalas | missing = list(set(uuids) - set(catalog)) |
319 | 469d0997 | Georgios D. Tsoukalas | if missing and not fail_silently: |
320 | 469d0997 | Georgios D. Tsoukalas | raise ItemNotExists('Unknown displaynames: %s' % ', '.join(missing)) |
321 | 469d0997 | Georgios D. Tsoukalas | return catalog if return_dict else [catalog.get(i) for i in uuids] |
322 | 88dd5c4d | Sofia Papagiannaki | |
323 | ad0efdb3 | Ilias Tsitsimpis | |
324 | 27932481 | Sofia Papagiannaki | def retrieve_uuid(token, displayname): |
325 | 890c2065 | Sofia Papagiannaki | if is_uuid(displayname):
|
326 | 890c2065 | Sofia Papagiannaki | return displayname
|
327 | 890c2065 | Sofia Papagiannaki | |
328 | e3ff6830 | Georgios D. Tsoukalas | astakos = AstakosClient(ASTAKOS_BASE_URL, retry=2, use_pool=True, |
329 | e3ff6830 | Georgios D. Tsoukalas | logger=logger) |
330 | e6fb591c | Ilias Tsitsimpis | try:
|
331 | e6fb591c | Ilias Tsitsimpis | uuid = astakos.get_uuid(token, displayname) |
332 | e6fb591c | Ilias Tsitsimpis | except NoUUID:
|
333 | 890c2065 | Sofia Papagiannaki | raise ItemNotExists(displayname)
|
334 | 890c2065 | Sofia Papagiannaki | return uuid
|
335 | 890c2065 | Sofia Papagiannaki | |
336 | ad0efdb3 | Ilias Tsitsimpis | |
337 | 469d0997 | Georgios D. Tsoukalas | def retrieve_uuids(token, displaynames, return_dict=False, fail_silently=True): |
338 | e3ff6830 | Georgios D. Tsoukalas | astakos = AstakosClient(ASTAKOS_BASE_URL, retry=2, use_pool=True, |
339 | e3ff6830 | Georgios D. Tsoukalas | logger=logger) |
340 | e6fb591c | Ilias Tsitsimpis | catalog = astakos.get_uuids(token, displaynames) or {}
|
341 | 469d0997 | Georgios D. Tsoukalas | missing = list(set(displaynames) - set(catalog)) |
342 | 469d0997 | Georgios D. Tsoukalas | if missing and not fail_silently: |
343 | 469d0997 | Georgios D. Tsoukalas | raise ItemNotExists('Unknown uuids: %s' % ', '.join(missing)) |
344 | 469d0997 | Georgios D. Tsoukalas | return catalog if return_dict else [catalog.get(i) for i in displaynames] |
345 | 890c2065 | Sofia Papagiannaki | |
346 | ad0efdb3 | Ilias Tsitsimpis | |
347 | 27932481 | Sofia Papagiannaki | def replace_permissions_displayname(token, holder): |
348 | 469d0997 | Georgios D. Tsoukalas | if holder == '*': |
349 | 469d0997 | Georgios D. Tsoukalas | return holder
|
350 | 32454501 | Sofia Papagiannaki | try:
|
351 | 32454501 | Sofia Papagiannaki | # check first for a group permission
|
352 | 4a9e3f32 | Sofia Papagiannaki | account, group = holder.split(':', 1) |
353 | 32454501 | Sofia Papagiannaki | except ValueError: |
354 | 469d0997 | Georgios D. Tsoukalas | return retrieve_uuid(token, holder)
|
355 | 32454501 | Sofia Papagiannaki | else:
|
356 | 469d0997 | Georgios D. Tsoukalas | return ':'.join([retrieve_uuid(token, account), group]) |
357 | 32454501 | Sofia Papagiannaki | |
358 | ad0efdb3 | Ilias Tsitsimpis | |
359 | 27932481 | Sofia Papagiannaki | def replace_permissions_uuid(token, holder): |
360 | 469d0997 | Georgios D. Tsoukalas | if holder == '*': |
361 | 469d0997 | Georgios D. Tsoukalas | return holder
|
362 | 32454501 | Sofia Papagiannaki | try:
|
363 | 32454501 | Sofia Papagiannaki | # check first for a group permission
|
364 | 4a9e3f32 | Sofia Papagiannaki | account, group = holder.split(':', 1) |
365 | 32454501 | Sofia Papagiannaki | except ValueError: |
366 | 469d0997 | Georgios D. Tsoukalas | return retrieve_displayname(token, holder)
|
367 | 32454501 | Sofia Papagiannaki | else:
|
368 | 469d0997 | Georgios D. Tsoukalas | return ':'.join([retrieve_displayname(token, account), group]) |
369 | 32454501 | Sofia Papagiannaki | |
370 | ad0efdb3 | Ilias Tsitsimpis | |
371 | ad0efdb3 | Ilias Tsitsimpis | def update_sharing_meta(request, permissions, v_account, |
372 | ad0efdb3 | Ilias Tsitsimpis | v_container, v_object, meta): |
373 | cca6c617 | Antony Chazapis | if permissions is None: |
374 | cca6c617 | Antony Chazapis | return
|
375 | 067cf1fc | Antony Chazapis | allowed, perm_path, perms = permissions |
376 | cca6c617 | Antony Chazapis | if len(perms) == 0: |
377 | cca6c617 | Antony Chazapis | return
|
378 | 32454501 | Sofia Papagiannaki | |
379 | 27932481 | Sofia Papagiannaki | # replace uuid with displayname
|
380 | 469d0997 | Georgios D. Tsoukalas | if TRANSLATE_UUIDS:
|
381 | 469d0997 | Georgios D. Tsoukalas | perms['read'] = [replace_permissions_uuid(
|
382 | ad0efdb3 | Ilias Tsitsimpis | getattr(request, 'token', None), x) |
383 | ad0efdb3 | Ilias Tsitsimpis | for x in perms.get('read', [])] |
384 | 469d0997 | Georgios D. Tsoukalas | perms['write'] = [replace_permissions_uuid(
|
385 | ad0efdb3 | Ilias Tsitsimpis | getattr(request, 'token', None), x) |
386 | ad0efdb3 | Ilias Tsitsimpis | for x in perms.get('write', [])] |
387 | 32454501 | Sofia Papagiannaki | |
388 | 3436eeb0 | Antony Chazapis | ret = [] |
389 | 32454501 | Sofia Papagiannaki | |
390 | cca6c617 | Antony Chazapis | r = ','.join(perms.get('read', [])) |
391 | 3436eeb0 | Antony Chazapis | if r:
|
392 | 3436eeb0 | Antony Chazapis | ret.append('read=' + r)
|
393 | cca6c617 | Antony Chazapis | w = ','.join(perms.get('write', [])) |
394 | 3436eeb0 | Antony Chazapis | if w:
|
395 | 3436eeb0 | Antony Chazapis | ret.append('write=' + w)
|
396 | cca6c617 | Antony Chazapis | meta['X-Object-Sharing'] = '; '.join(ret) |
397 | cca6c617 | Antony Chazapis | if '/'.join((v_account, v_container, v_object)) != perm_path: |
398 | cca6c617 | Antony Chazapis | meta['X-Object-Shared-By'] = perm_path
|
399 | 61efb530 | Antony Chazapis | if request.user_uniq != v_account:
|
400 | 067cf1fc | Antony Chazapis | meta['X-Object-Allowed-To'] = allowed
|
401 | 3436eeb0 | Antony Chazapis | |
402 | 2715ade4 | Sofia Papagiannaki | |
403 | e0f916bb | Antony Chazapis | def update_public_meta(public, meta): |
404 | e0f916bb | Antony Chazapis | if not public: |
405 | e0f916bb | Antony Chazapis | return
|
406 | a3fcee5b | Sofia Papagiannaki | meta['X-Object-Public'] = join_urls(
|
407 | cc1f91ad | Sofia Papagiannaki | BASE_HOST, reverse('pithos.api.public.public_demux', args=(public,)))
|
408 | e0f916bb | Antony Chazapis | |
409 | 2715ade4 | Sofia Papagiannaki | |
410 | b956618e | Antony Chazapis | def validate_modification_preconditions(request, meta): |
411 | 29148653 | Sofia Papagiannaki | """Check the modified timestamp conforms with the preconditions set."""
|
412 | 2715ade4 | Sofia Papagiannaki | |
413 | 22dab079 | Antony Chazapis | if 'modified' not in meta: |
414 | 2715ade4 | Sofia Papagiannaki | return # TODO: Always return? |
415 | 2715ade4 | Sofia Papagiannaki | |
416 | b956618e | Antony Chazapis | if_modified_since = request.META.get('HTTP_IF_MODIFIED_SINCE')
|
417 | b956618e | Antony Chazapis | if if_modified_since is not None: |
418 | b956618e | Antony Chazapis | if_modified_since = parse_http_date_safe(if_modified_since) |
419 | ad0efdb3 | Ilias Tsitsimpis | if (if_modified_since is not None |
420 | ad0efdb3 | Ilias Tsitsimpis | and int(meta['modified']) <= if_modified_since): |
421 | bd40abfa | Christos Stavrakakis | raise faults.NotModified('Resource has not been modified') |
422 | 2715ade4 | Sofia Papagiannaki | |
423 | b956618e | Antony Chazapis | if_unmodified_since = request.META.get('HTTP_IF_UNMODIFIED_SINCE')
|
424 | b956618e | Antony Chazapis | if if_unmodified_since is not None: |
425 | b956618e | Antony Chazapis | if_unmodified_since = parse_http_date_safe(if_unmodified_since) |
426 | ad0efdb3 | Ilias Tsitsimpis | if (if_unmodified_since is not None |
427 | ad0efdb3 | Ilias Tsitsimpis | and int(meta['modified']) > if_unmodified_since): |
428 | bd40abfa | Christos Stavrakakis | raise faults.PreconditionFailed('Resource has been modified') |
429 | b956618e | Antony Chazapis | |
430 | 2715ade4 | Sofia Papagiannaki | |
431 | 22dab079 | Antony Chazapis | def validate_matching_preconditions(request, meta): |
432 | 58a6c894 | Antony Chazapis | """Check that the ETag conforms with the preconditions set."""
|
433 | 2715ade4 | Sofia Papagiannaki | |
434 | 133e3fcf | Sofia Papagiannaki | etag = meta['hash'] if not UPDATE_MD5 else meta['checksum'] |
435 | 33b4e4a6 | Antony Chazapis | if not etag: |
436 | 33b4e4a6 | Antony Chazapis | etag = None
|
437 | 2715ade4 | Sofia Papagiannaki | |
438 | 22dab079 | Antony Chazapis | if_match = request.META.get('HTTP_IF_MATCH')
|
439 | a8326bef | Antony Chazapis | if if_match is not None: |
440 | 4a1c29ea | Antony Chazapis | if etag is None: |
441 | bd40abfa | Christos Stavrakakis | raise faults.PreconditionFailed('Resource does not exist') |
442 | ad0efdb3 | Ilias Tsitsimpis | if (if_match != '*' |
443 | ad0efdb3 | Ilias Tsitsimpis | and etag not in [x.lower() for x in parse_etags(if_match)]): |
444 | bd40abfa | Christos Stavrakakis | raise faults.PreconditionFailed('Resource ETag does not match') |
445 | 2715ade4 | Sofia Papagiannaki | |
446 | 22dab079 | Antony Chazapis | if_none_match = request.META.get('HTTP_IF_NONE_MATCH')
|
447 | 22dab079 | Antony Chazapis | if if_none_match is not None: |
448 | a8326bef | Antony Chazapis | # TODO: If this passes, must ignore If-Modified-Since header.
|
449 | 4a1c29ea | Antony Chazapis | if etag is not None: |
450 | 29148653 | Sofia Papagiannaki | if (if_none_match == '*' or etag in [x.lower() for x in |
451 | 29148653 | Sofia Papagiannaki | parse_etags(if_none_match)]): |
452 | a8326bef | Antony Chazapis | # TODO: Continue if an If-Modified-Since header is present.
|
453 | a8326bef | Antony Chazapis | if request.method in ('HEAD', 'GET'): |
454 | bd40abfa | Christos Stavrakakis | raise faults.NotModified('Resource ETag matches') |
455 | ad0efdb3 | Ilias Tsitsimpis | raise faults.PreconditionFailed(
|
456 | ad0efdb3 | Ilias Tsitsimpis | 'Resource exists or ETag matches')
|
457 | 22dab079 | Antony Chazapis | |
458 | 2715ade4 | Sofia Papagiannaki | |
459 | 83dd59c5 | Antony Chazapis | def split_container_object_string(s): |
460 | 6d817842 | Antony Chazapis | if not len(s) > 0 or s[0] != '/': |
461 | 6d817842 | Antony Chazapis | raise ValueError |
462 | 6d817842 | Antony Chazapis | s = s[1:]
|
463 | 8cb45c13 | Antony Chazapis | pos = s.find('/')
|
464 | 22d7b01e | Antony Chazapis | if pos == -1 or pos == len(s) - 1: |
465 | 83dd59c5 | Antony Chazapis | raise ValueError |
466 | 8cb45c13 | Antony Chazapis | return s[:pos], s[(pos + 1):] |
467 | 83dd59c5 | Antony Chazapis | |
468 | 2715ade4 | Sofia Papagiannaki | |
469 | ad0efdb3 | Ilias Tsitsimpis | def copy_or_move_object(request, src_account, src_container, src_name, |
470 | ad0efdb3 | Ilias Tsitsimpis | dest_account, dest_container, dest_name, |
471 | ad0efdb3 | Ilias Tsitsimpis | move=False, delimiter=None): |
472 | 58a6c894 | Antony Chazapis | """Copy or move an object."""
|
473 | 2715ade4 | Sofia Papagiannaki | |
474 | 53cff70c | Antony Chazapis | if 'ignore_content_type' in request.GET and 'CONTENT_TYPE' in request.META: |
475 | 53cff70c | Antony Chazapis | del(request.META['CONTENT_TYPE']) |
476 | 66ce2ca5 | Antony Chazapis | content_type, meta, permissions, public = get_object_headers(request) |
477 | 79bb41b7 | Antony Chazapis | src_version = request.META.get('HTTP_X_SOURCE_VERSION')
|
478 | b956618e | Antony Chazapis | try:
|
479 | b956618e | Antony Chazapis | if move:
|
480 | 2715ade4 | Sofia Papagiannaki | version_id = request.backend.move_object( |
481 | 2715ade4 | Sofia Papagiannaki | request.user_uniq, src_account, src_container, src_name, |
482 | 2715ade4 | Sofia Papagiannaki | dest_account, dest_container, dest_name, |
483 | 2715ade4 | Sofia Papagiannaki | content_type, 'pithos', meta, False, permissions, delimiter) |
484 | b956618e | Antony Chazapis | else:
|
485 | 2715ade4 | Sofia Papagiannaki | version_id = request.backend.copy_object( |
486 | 2715ade4 | Sofia Papagiannaki | request.user_uniq, src_account, src_container, src_name, |
487 | 2715ade4 | Sofia Papagiannaki | dest_account, dest_container, dest_name, |
488 | ad0efdb3 | Ilias Tsitsimpis | content_type, 'pithos', meta, False, permissions, |
489 | ad0efdb3 | Ilias Tsitsimpis | src_version, delimiter) |
490 | cca6c617 | Antony Chazapis | except NotAllowedError:
|
491 | bd40abfa | Christos Stavrakakis | raise faults.Forbidden('Not allowed') |
492 | 7efc9f86 | Sofia Papagiannaki | except (ItemNotExists, VersionNotExists):
|
493 | bd40abfa | Christos Stavrakakis | raise faults.ItemNotFound('Container or object does not exist') |
494 | 3436eeb0 | Antony Chazapis | except ValueError: |
495 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Invalid sharing header') |
496 | dfa2d4ba | Sofia Papagiannaki | except QuotaError, e:
|
497 | bd40abfa | Christos Stavrakakis | raise faults.RequestEntityTooLarge('Quota error: %s' % e) |
498 | e0f916bb | Antony Chazapis | if public is not None: |
499 | e0f916bb | Antony Chazapis | try:
|
500 | ad0efdb3 | Ilias Tsitsimpis | request.backend.update_object_public( |
501 | ad0efdb3 | Ilias Tsitsimpis | request.user_uniq, dest_account, |
502 | ad0efdb3 | Ilias Tsitsimpis | dest_container, dest_name, public) |
503 | e0f916bb | Antony Chazapis | except NotAllowedError:
|
504 | bd40abfa | Christos Stavrakakis | raise faults.Forbidden('Not allowed') |
505 | 7efc9f86 | Sofia Papagiannaki | except ItemNotExists:
|
506 | bd40abfa | Christos Stavrakakis | raise faults.ItemNotFound('Object does not exist') |
507 | 7dd293a0 | Antony Chazapis | return version_id
|
508 | b956618e | Antony Chazapis | |
509 | 2715ade4 | Sofia Papagiannaki | |
510 | 1495b972 | Antony Chazapis | def get_int_parameter(p): |
511 | 83dd59c5 | Antony Chazapis | if p is not None: |
512 | 58a6c894 | Antony Chazapis | try:
|
513 | 83dd59c5 | Antony Chazapis | p = int(p)
|
514 | 58a6c894 | Antony Chazapis | except ValueError: |
515 | 58a6c894 | Antony Chazapis | return None |
516 | 83dd59c5 | Antony Chazapis | if p < 0: |
517 | 58a6c894 | Antony Chazapis | return None |
518 | 83dd59c5 | Antony Chazapis | return p
|
519 | 58a6c894 | Antony Chazapis | |
520 | 2715ade4 | Sofia Papagiannaki | |
521 | 22dab079 | Antony Chazapis | def get_content_length(request): |
522 | 1495b972 | Antony Chazapis | content_length = get_int_parameter(request.META.get('CONTENT_LENGTH'))
|
523 | 1495b972 | Antony Chazapis | if content_length is None: |
524 | bd40abfa | Christos Stavrakakis | raise faults.LengthRequired('Missing or invalid Content-Length header') |
525 | 22dab079 | Antony Chazapis | return content_length
|
526 | 22dab079 | Antony Chazapis | |
527 | 2715ade4 | Sofia Papagiannaki | |
528 | 22dab079 | Antony Chazapis | def get_range(request, size): |
529 | 58a6c894 | Antony Chazapis | """Parse a Range header from the request.
|
530 | 2715ade4 | Sofia Papagiannaki |
|
531 | 22dab079 | Antony Chazapis | Either returns None, when the header is not existent or should be ignored,
|
532 | 22dab079 | Antony Chazapis | or a list of (offset, length) tuples - should be further checked.
|
533 | b956618e | Antony Chazapis | """
|
534 | 2715ade4 | Sofia Papagiannaki | |
535 | 22dab079 | Antony Chazapis | ranges = request.META.get('HTTP_RANGE', '').replace(' ', '') |
536 | 22dab079 | Antony Chazapis | if not ranges.startswith('bytes='): |
537 | b956618e | Antony Chazapis | return None |
538 | 2715ade4 | Sofia Papagiannaki | |
539 | 22dab079 | Antony Chazapis | ret = [] |
540 | 22dab079 | Antony Chazapis | for r in (x.strip() for x in ranges[6:].split(',')): |
541 | 22dab079 | Antony Chazapis | p = re.compile('^(?P<offset>\d*)-(?P<upto>\d*)$')
|
542 | 22dab079 | Antony Chazapis | m = p.match(r) |
543 | 22dab079 | Antony Chazapis | if not m: |
544 | 22dab079 | Antony Chazapis | return None |
545 | 22dab079 | Antony Chazapis | offset = m.group('offset')
|
546 | 22dab079 | Antony Chazapis | upto = m.group('upto')
|
547 | 22dab079 | Antony Chazapis | if offset == '' and upto == '': |
548 | b956618e | Antony Chazapis | return None |
549 | 2715ade4 | Sofia Papagiannaki | |
550 | 22dab079 | Antony Chazapis | if offset != '': |
551 | 22dab079 | Antony Chazapis | offset = int(offset)
|
552 | 22dab079 | Antony Chazapis | if upto != '': |
553 | b956618e | Antony Chazapis | upto = int(upto)
|
554 | 22dab079 | Antony Chazapis | if offset > upto:
|
555 | 22dab079 | Antony Chazapis | return None |
556 | 22dab079 | Antony Chazapis | ret.append((offset, upto - offset + 1))
|
557 | 22dab079 | Antony Chazapis | else:
|
558 | 22dab079 | Antony Chazapis | ret.append((offset, size - offset)) |
559 | b956618e | Antony Chazapis | else:
|
560 | 22dab079 | Antony Chazapis | length = int(upto)
|
561 | 22dab079 | Antony Chazapis | ret.append((size - length, length)) |
562 | 2715ade4 | Sofia Papagiannaki | |
563 | 22dab079 | Antony Chazapis | return ret
|
564 | 22dab079 | Antony Chazapis | |
565 | 2715ade4 | Sofia Papagiannaki | |
566 | 22dab079 | Antony Chazapis | def get_content_range(request): |
567 | 58a6c894 | Antony Chazapis | """Parse a Content-Range header from the request.
|
568 | 2715ade4 | Sofia Papagiannaki |
|
569 | 22dab079 | Antony Chazapis | Either returns None, when the header is not existent or should be ignored,
|
570 | 22dab079 | Antony Chazapis | or an (offset, length, total) tuple - check as length, total may be None.
|
571 | 22dab079 | Antony Chazapis | Returns (None, None, None) if the provided range is '*/*'.
|
572 | 22dab079 | Antony Chazapis | """
|
573 | 2715ade4 | Sofia Papagiannaki | |
574 | 22dab079 | Antony Chazapis | ranges = request.META.get('HTTP_CONTENT_RANGE', '') |
575 | 22dab079 | Antony Chazapis | if not ranges: |
576 | 22dab079 | Antony Chazapis | return None |
577 | 2715ade4 | Sofia Papagiannaki | |
578 | 22dab079 | Antony Chazapis | p = re.compile('^bytes (?P<offset>\d+)-(?P<upto>\d*)/(?P<total>(\d+|\*))$')
|
579 | 22dab079 | Antony Chazapis | m = p.match(ranges) |
580 | 22dab079 | Antony Chazapis | if not m: |
581 | 22dab079 | Antony Chazapis | if ranges == 'bytes */*': |
582 | 22dab079 | Antony Chazapis | return (None, None, None) |
583 | 22dab079 | Antony Chazapis | return None |
584 | 22dab079 | Antony Chazapis | offset = int(m.group('offset')) |
585 | 22dab079 | Antony Chazapis | upto = m.group('upto')
|
586 | 22dab079 | Antony Chazapis | total = m.group('total')
|
587 | 22dab079 | Antony Chazapis | if upto != '': |
588 | 22dab079 | Antony Chazapis | upto = int(upto)
|
589 | b956618e | Antony Chazapis | else:
|
590 | 22dab079 | Antony Chazapis | upto = None
|
591 | 22dab079 | Antony Chazapis | if total != '*': |
592 | 22dab079 | Antony Chazapis | total = int(total)
|
593 | 22dab079 | Antony Chazapis | else:
|
594 | 22dab079 | Antony Chazapis | total = None
|
595 | 70e526a0 | Antony Chazapis | if (upto is not None and offset > upto) or \ |
596 | 70e526a0 | Antony Chazapis | (total is not None and offset >= total) or \ |
597 | 2715ade4 | Sofia Papagiannaki | (total is not None and upto is not None and upto >= total): |
598 | 22dab079 | Antony Chazapis | return None |
599 | 2715ade4 | Sofia Papagiannaki | |
600 | 70e526a0 | Antony Chazapis | if upto is None: |
601 | 22dab079 | Antony Chazapis | length = None
|
602 | 22dab079 | Antony Chazapis | else:
|
603 | 22dab079 | Antony Chazapis | length = upto - offset + 1
|
604 | 22dab079 | Antony Chazapis | return (offset, length, total)
|
605 | b956618e | Antony Chazapis | |
606 | 2715ade4 | Sofia Papagiannaki | |
607 | 3436eeb0 | Antony Chazapis | def get_sharing(request): |
608 | 3436eeb0 | Antony Chazapis | """Parse an X-Object-Sharing header from the request.
|
609 | 2715ade4 | Sofia Papagiannaki |
|
610 | 3436eeb0 | Antony Chazapis | Raises BadRequest on error.
|
611 | 3436eeb0 | Antony Chazapis | """
|
612 | 2715ade4 | Sofia Papagiannaki | |
613 | 3436eeb0 | Antony Chazapis | permissions = request.META.get('HTTP_X_OBJECT_SHARING')
|
614 | cca6c617 | Antony Chazapis | if permissions is None: |
615 | 3436eeb0 | Antony Chazapis | return None |
616 | 2715ade4 | Sofia Papagiannaki | |
617 | 0a7f1671 | Antony Chazapis | # TODO: Document or remove '~' replacing.
|
618 | 0a7f1671 | Antony Chazapis | permissions = permissions.replace('~', '') |
619 | 2715ade4 | Sofia Papagiannaki | |
620 | 3436eeb0 | Antony Chazapis | ret = {} |
621 | cca6c617 | Antony Chazapis | permissions = permissions.replace(' ', '') |
622 | cca6c617 | Antony Chazapis | if permissions == '': |
623 | cca6c617 | Antony Chazapis | return ret
|
624 | cca6c617 | Antony Chazapis | for perm in (x for x in permissions.split(';')): |
625 | cca6c617 | Antony Chazapis | if perm.startswith('read='): |
626 | 2715ade4 | Sofia Papagiannaki | ret['read'] = list(set( |
627 | 2715ade4 | Sofia Papagiannaki | [v.replace(' ', '').lower() for v in perm[5:].split(',')])) |
628 | 02c0c3fa | Antony Chazapis | if '' in ret['read']: |
629 | 02c0c3fa | Antony Chazapis | ret['read'].remove('') |
630 | e8886082 | Antony Chazapis | if '*' in ret['read']: |
631 | e8886082 | Antony Chazapis | ret['read'] = ['*'] |
632 | 3436eeb0 | Antony Chazapis | if len(ret['read']) == 0: |
633 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest(
|
634 | 32454501 | Sofia Papagiannaki | 'Bad X-Object-Sharing header value: invalid length')
|
635 | 3436eeb0 | Antony Chazapis | elif perm.startswith('write='): |
636 | 2715ade4 | Sofia Papagiannaki | ret['write'] = list(set( |
637 | 2715ade4 | Sofia Papagiannaki | [v.replace(' ', '').lower() for v in perm[6:].split(',')])) |
638 | 02c0c3fa | Antony Chazapis | if '' in ret['write']: |
639 | 02c0c3fa | Antony Chazapis | ret['write'].remove('') |
640 | e8886082 | Antony Chazapis | if '*' in ret['write']: |
641 | e8886082 | Antony Chazapis | ret['write'] = ['*'] |
642 | 3436eeb0 | Antony Chazapis | if len(ret['write']) == 0: |
643 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest(
|
644 | 32454501 | Sofia Papagiannaki | 'Bad X-Object-Sharing header value: invalid length')
|
645 | 3436eeb0 | Antony Chazapis | else:
|
646 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest(
|
647 | 32454501 | Sofia Papagiannaki | 'Bad X-Object-Sharing header value: missing prefix')
|
648 | 32454501 | Sofia Papagiannaki | |
649 | 890c2065 | Sofia Papagiannaki | # replace displayname with uuid
|
650 | 469d0997 | Georgios D. Tsoukalas | if TRANSLATE_UUIDS:
|
651 | 469d0997 | Georgios D. Tsoukalas | try:
|
652 | 469d0997 | Georgios D. Tsoukalas | ret['read'] = [replace_permissions_displayname(
|
653 | ad0efdb3 | Ilias Tsitsimpis | getattr(request, 'token', None), x) |
654 | ad0efdb3 | Ilias Tsitsimpis | for x in ret.get('read', [])] |
655 | 469d0997 | Georgios D. Tsoukalas | ret['write'] = [replace_permissions_displayname(
|
656 | ad0efdb3 | Ilias Tsitsimpis | getattr(request, 'token', None), x) |
657 | ad0efdb3 | Ilias Tsitsimpis | for x in ret.get('write', [])] |
658 | 469d0997 | Georgios D. Tsoukalas | except ItemNotExists, e:
|
659 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest(
|
660 | 469d0997 | Georgios D. Tsoukalas | 'Bad X-Object-Sharing header value: unknown account: %s' % e)
|
661 | 2715ade4 | Sofia Papagiannaki | |
662 | 21a8a6ff | Antony Chazapis | # Keep duplicates only in write list.
|
663 | 2715ade4 | Sofia Papagiannaki | dups = [x for x in ret.get( |
664 | 2715ade4 | Sofia Papagiannaki | 'read', []) if x in ret.get('write', []) and x != '*'] |
665 | 21a8a6ff | Antony Chazapis | if dups:
|
666 | 21a8a6ff | Antony Chazapis | for x in dups: |
667 | 21a8a6ff | Antony Chazapis | ret['read'].remove(x)
|
668 | 21a8a6ff | Antony Chazapis | if len(ret['read']) == 0: |
669 | 21a8a6ff | Antony Chazapis | del(ret['read']) |
670 | 2715ade4 | Sofia Papagiannaki | |
671 | 3436eeb0 | Antony Chazapis | return ret
|
672 | 3436eeb0 | Antony Chazapis | |
673 | 2715ade4 | Sofia Papagiannaki | |
674 | 3ab38c43 | Antony Chazapis | def get_public(request): |
675 | 3ab38c43 | Antony Chazapis | """Parse an X-Object-Public header from the request.
|
676 | 2715ade4 | Sofia Papagiannaki |
|
677 | 3ab38c43 | Antony Chazapis | Raises BadRequest on error.
|
678 | 3ab38c43 | Antony Chazapis | """
|
679 | 2715ade4 | Sofia Papagiannaki | |
680 | 3ab38c43 | Antony Chazapis | public = request.META.get('HTTP_X_OBJECT_PUBLIC')
|
681 | 3ab38c43 | Antony Chazapis | if public is None: |
682 | 3ab38c43 | Antony Chazapis | return None |
683 | 2715ade4 | Sofia Papagiannaki | |
684 | 3ab38c43 | Antony Chazapis | public = public.replace(' ', '').lower() |
685 | 3ab38c43 | Antony Chazapis | if public == 'true': |
686 | 3ab38c43 | Antony Chazapis | return True |
687 | 3ab38c43 | Antony Chazapis | elif public == 'false' or public == '': |
688 | 3ab38c43 | Antony Chazapis | return False |
689 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Bad X-Object-Public header value') |
690 | 3ab38c43 | Antony Chazapis | |
691 | 2715ade4 | Sofia Papagiannaki | |
692 | b956618e | Antony Chazapis | def raw_input_socket(request): |
693 | 58a6c894 | Antony Chazapis | """Return the socket for reading the rest of the request."""
|
694 | 2715ade4 | Sofia Papagiannaki | |
695 | b956618e | Antony Chazapis | server_software = request.META.get('SERVER_SOFTWARE')
|
696 | fc1b2a75 | Antony Chazapis | if server_software and server_software.startswith('mod_python'): |
697 | b956618e | Antony Chazapis | return request._req
|
698 | fc1b2a75 | Antony Chazapis | if 'wsgi.input' in request.environ: |
699 | fc1b2a75 | Antony Chazapis | return request.environ['wsgi.input'] |
700 | 08de868d | Antony Chazapis | raise NotImplemented('Unknown server software') |
701 | b956618e | Antony Chazapis | |
702 | 2715ade4 | Sofia Papagiannaki | MAX_UPLOAD_SIZE = 5 * (1024 * 1024 * 1024) # 5GB |
703 | 2715ade4 | Sofia Papagiannaki | |
704 | b956618e | Antony Chazapis | |
705 | c032f34d | Antony Chazapis | def socket_read_iterator(request, length=0, blocksize=4096): |
706 | 29148653 | Sofia Papagiannaki | """Return maximum of blocksize data read from the socket in each iteration
|
707 | 2715ade4 | Sofia Papagiannaki |
|
708 | 22dab079 | Antony Chazapis | Read up to 'length'. If 'length' is negative, will attempt a chunked read.
|
709 | b956618e | Antony Chazapis | The maximum ammount of data read is controlled by MAX_UPLOAD_SIZE.
|
710 | b956618e | Antony Chazapis | """
|
711 | 2715ade4 | Sofia Papagiannaki | |
712 | c032f34d | Antony Chazapis | sock = raw_input_socket(request) |
713 | 2715ade4 | Sofia Papagiannaki | if length < 0: # Chunked transfers |
714 | c032f34d | Antony Chazapis | # Small version (server does the dechunking).
|
715 | ad0efdb3 | Ilias Tsitsimpis | if (request.environ.get('mod_wsgi.input_chunked', None) |
716 | ad0efdb3 | Ilias Tsitsimpis | or request.META['SERVER_SOFTWARE'].startswith('gunicorn')): |
717 | c032f34d | Antony Chazapis | while length < MAX_UPLOAD_SIZE:
|
718 | c032f34d | Antony Chazapis | data = sock.read(blocksize) |
719 | c032f34d | Antony Chazapis | if data == '': |
720 | c032f34d | Antony Chazapis | return
|
721 | c032f34d | Antony Chazapis | yield data
|
722 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Maximum size is reached') |
723 | 2715ade4 | Sofia Papagiannaki | |
724 | c032f34d | Antony Chazapis | # Long version (do the dechunking).
|
725 | 22dab079 | Antony Chazapis | data = ''
|
726 | b956618e | Antony Chazapis | while length < MAX_UPLOAD_SIZE:
|
727 | 22dab079 | Antony Chazapis | # Get chunk size.
|
728 | 22dab079 | Antony Chazapis | if hasattr(sock, 'readline'): |
729 | 22dab079 | Antony Chazapis | chunk_length = sock.readline() |
730 | 22dab079 | Antony Chazapis | else:
|
731 | 22dab079 | Antony Chazapis | chunk_length = ''
|
732 | 22dab079 | Antony Chazapis | while chunk_length[-1:] != '\n': |
733 | 22dab079 | Antony Chazapis | chunk_length += sock.read(1)
|
734 | 22dab079 | Antony Chazapis | chunk_length.strip() |
735 | b956618e | Antony Chazapis | pos = chunk_length.find(';')
|
736 | b956618e | Antony Chazapis | if pos >= 0: |
737 | b956618e | Antony Chazapis | chunk_length = chunk_length[:pos] |
738 | b956618e | Antony Chazapis | try:
|
739 | b956618e | Antony Chazapis | chunk_length = int(chunk_length, 16) |
740 | bd40abfa | Christos Stavrakakis | except Exception: |
741 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Bad chunk size') |
742 | 2715ade4 | Sofia Papagiannaki | # TODO: Change to something more appropriate.
|
743 | 22dab079 | Antony Chazapis | # Check if done.
|
744 | b956618e | Antony Chazapis | if chunk_length == 0: |
745 | 22dab079 | Antony Chazapis | if len(data) > 0: |
746 | 22dab079 | Antony Chazapis | yield data
|
747 | b956618e | Antony Chazapis | return
|
748 | 22dab079 | Antony Chazapis | # Get the actual data.
|
749 | b956618e | Antony Chazapis | while chunk_length > 0: |
750 | 22dab079 | Antony Chazapis | chunk = sock.read(min(chunk_length, blocksize))
|
751 | 22dab079 | Antony Chazapis | chunk_length -= len(chunk)
|
752 | 623a0cf4 | Sofia Papagiannaki | if length > 0: |
753 | 623a0cf4 | Sofia Papagiannaki | length += len(chunk)
|
754 | 22dab079 | Antony Chazapis | data += chunk |
755 | 22dab079 | Antony Chazapis | if len(data) >= blocksize: |
756 | 22dab079 | Antony Chazapis | ret = data[:blocksize] |
757 | 22dab079 | Antony Chazapis | data = data[blocksize:] |
758 | 22dab079 | Antony Chazapis | yield ret
|
759 | 2715ade4 | Sofia Papagiannaki | sock.read(2) # CRLF |
760 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Maximum size is reached') |
761 | b956618e | Antony Chazapis | else:
|
762 | b956618e | Antony Chazapis | if length > MAX_UPLOAD_SIZE:
|
763 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Maximum size is reached') |
764 | b956618e | Antony Chazapis | while length > 0: |
765 | b956618e | Antony Chazapis | data = sock.read(min(length, blocksize))
|
766 | 7b25e082 | Antony Chazapis | if not data: |
767 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest()
|
768 | b956618e | Antony Chazapis | length -= len(data)
|
769 | b956618e | Antony Chazapis | yield data
|
770 | b956618e | Antony Chazapis | |
771 | 2715ade4 | Sofia Papagiannaki | |
772 | 817890f2 | Antony Chazapis | class SaveToBackendHandler(FileUploadHandler): |
773 | 817890f2 | Antony Chazapis | """Handle a file from an HTML form the django way."""
|
774 | 2715ade4 | Sofia Papagiannaki | |
775 | 817890f2 | Antony Chazapis | def __init__(self, request=None): |
776 | 817890f2 | Antony Chazapis | super(SaveToBackendHandler, self).__init__(request) |
777 | 817890f2 | Antony Chazapis | self.backend = request.backend
|
778 | 2715ade4 | Sofia Papagiannaki | |
779 | 817890f2 | Antony Chazapis | def put_data(self, length): |
780 | 817890f2 | Antony Chazapis | if len(self.data) >= length: |
781 | 817890f2 | Antony Chazapis | block = self.data[:length]
|
782 | 817890f2 | Antony Chazapis | self.file.hashmap.append(self.backend.put_block(block)) |
783 | 133e3fcf | Sofia Papagiannaki | self.checksum_compute.update(block)
|
784 | 817890f2 | Antony Chazapis | self.data = self.data[length:] |
785 | 2715ade4 | Sofia Papagiannaki | |
786 | ad0efdb3 | Ilias Tsitsimpis | def new_file(self, field_name, file_name, content_type, |
787 | ad0efdb3 | Ilias Tsitsimpis | content_length, charset=None):
|
788 | 133e3fcf | Sofia Papagiannaki | self.checksum_compute = NoChecksum() if not UPDATE_MD5 else Checksum() |
789 | 817890f2 | Antony Chazapis | self.data = '' |
790 | 2715ade4 | Sofia Papagiannaki | self.file = UploadedFile(
|
791 | 2715ade4 | Sofia Papagiannaki | name=file_name, content_type=content_type, charset=charset) |
792 | 817890f2 | Antony Chazapis | self.file.size = 0 |
793 | 817890f2 | Antony Chazapis | self.file.hashmap = []
|
794 | 2715ade4 | Sofia Papagiannaki | |
795 | 817890f2 | Antony Chazapis | def receive_data_chunk(self, raw_data, start): |
796 | 817890f2 | Antony Chazapis | self.data += raw_data
|
797 | 817890f2 | Antony Chazapis | self.file.size += len(raw_data) |
798 | 817890f2 | Antony Chazapis | self.put_data(self.request.backend.block_size) |
799 | 817890f2 | Antony Chazapis | return None |
800 | 2715ade4 | Sofia Papagiannaki | |
801 | 817890f2 | Antony Chazapis | def file_complete(self, file_size): |
802 | 817890f2 | Antony Chazapis | l = len(self.data) |
803 | 817890f2 | Antony Chazapis | if l > 0: |
804 | 817890f2 | Antony Chazapis | self.put_data(l)
|
805 | 133e3fcf | Sofia Papagiannaki | self.file.etag = self.checksum_compute.hexdigest() |
806 | 817890f2 | Antony Chazapis | return self.file |
807 | 817890f2 | Antony Chazapis | |
808 | 2715ade4 | Sofia Papagiannaki | |
809 | 22dab079 | Antony Chazapis | class ObjectWrapper(object): |
810 | 58a6c894 | Antony Chazapis | """Return the object's data block-per-block in each iteration.
|
811 | 2715ade4 | Sofia Papagiannaki |
|
812 | ad0efdb3 | Ilias Tsitsimpis | Read from the object using the offset and length provided
|
813 | ad0efdb3 | Ilias Tsitsimpis | in each entry of the range list.
|
814 | 22dab079 | Antony Chazapis | """
|
815 | 2715ade4 | Sofia Papagiannaki | |
816 | 39593b2b | Giorgos Verigakis | def __init__(self, backend, ranges, sizes, hashmaps, boundary): |
817 | 39593b2b | Giorgos Verigakis | self.backend = backend
|
818 | 22dab079 | Antony Chazapis | self.ranges = ranges
|
819 | 8cb45c13 | Antony Chazapis | self.sizes = sizes
|
820 | 8cb45c13 | Antony Chazapis | self.hashmaps = hashmaps
|
821 | 22dab079 | Antony Chazapis | self.boundary = boundary
|
822 | 8cb45c13 | Antony Chazapis | self.size = sum(self.sizes) |
823 | 2715ade4 | Sofia Papagiannaki | |
824 | 8cb45c13 | Antony Chazapis | self.file_index = 0 |
825 | 8cb45c13 | Antony Chazapis | self.block_index = 0 |
826 | 8cb45c13 | Antony Chazapis | self.block_hash = -1 |
827 | 22dab079 | Antony Chazapis | self.block = '' |
828 | 2715ade4 | Sofia Papagiannaki | |
829 | 22dab079 | Antony Chazapis | self.range_index = -1 |
830 | 22dab079 | Antony Chazapis | self.offset, self.length = self.ranges[0] |
831 | 2715ade4 | Sofia Papagiannaki | |
832 | 22dab079 | Antony Chazapis | def __iter__(self): |
833 | 22dab079 | Antony Chazapis | return self |
834 | 2715ade4 | Sofia Papagiannaki | |
835 | 22dab079 | Antony Chazapis | def part_iterator(self): |
836 | 22dab079 | Antony Chazapis | if self.length > 0: |
837 | 8cb45c13 | Antony Chazapis | # Get the file for the current offset.
|
838 | 8cb45c13 | Antony Chazapis | file_size = self.sizes[self.file_index] |
839 | 8cb45c13 | Antony Chazapis | while self.offset >= file_size: |
840 | 8cb45c13 | Antony Chazapis | self.offset -= file_size
|
841 | 8cb45c13 | Antony Chazapis | self.file_index += 1 |
842 | 8cb45c13 | Antony Chazapis | file_size = self.sizes[self.file_index] |
843 | 2715ade4 | Sofia Papagiannaki | |
844 | 8cb45c13 | Antony Chazapis | # Get the block for the current position.
|
845 | 39593b2b | Giorgos Verigakis | self.block_index = int(self.offset / self.backend.block_size) |
846 | ad0efdb3 | Ilias Tsitsimpis | if self.block_hash != \ |
847 | ad0efdb3 | Ilias Tsitsimpis | self.hashmaps[self.file_index][self.block_index]: |
848 | 2715ade4 | Sofia Papagiannaki | self.block_hash = self.hashmaps[ |
849 | 2715ade4 | Sofia Papagiannaki | self.file_index][self.block_index] |
850 | 22dab079 | Antony Chazapis | try:
|
851 | 39593b2b | Giorgos Verigakis | self.block = self.backend.get_block(self.block_hash) |
852 | 7efc9f86 | Sofia Papagiannaki | except ItemNotExists:
|
853 | bd40abfa | Christos Stavrakakis | raise faults.ItemNotFound('Block does not exist') |
854 | 2715ade4 | Sofia Papagiannaki | |
855 | 22dab079 | Antony Chazapis | # Get the data from the block.
|
856 | 39593b2b | Giorgos Verigakis | bo = self.offset % self.backend.block_size |
857 | c9865fe1 | Antony Chazapis | bs = self.backend.block_size
|
858 | 45cf0bc8 | Antony Chazapis | if (self.block_index == len(self.hashmaps[self.file_index]) - 1 and |
859 | 2715ade4 | Sofia Papagiannaki | self.sizes[self.file_index] % self.backend.block_size): |
860 | c9865fe1 | Antony Chazapis | bs = self.sizes[self.file_index] % self.backend.block_size |
861 | c9865fe1 | Antony Chazapis | bl = min(self.length, bs - bo) |
862 | 22dab079 | Antony Chazapis | data = self.block[bo:bo + bl]
|
863 | 22dab079 | Antony Chazapis | self.offset += bl
|
864 | 22dab079 | Antony Chazapis | self.length -= bl
|
865 | 22dab079 | Antony Chazapis | return data
|
866 | 22dab079 | Antony Chazapis | else:
|
867 | 22dab079 | Antony Chazapis | raise StopIteration |
868 | 2715ade4 | Sofia Papagiannaki | |
869 | 22dab079 | Antony Chazapis | def next(self): |
870 | 22dab079 | Antony Chazapis | if len(self.ranges) == 1: |
871 | 22dab079 | Antony Chazapis | return self.part_iterator() |
872 | 22dab079 | Antony Chazapis | if self.range_index == len(self.ranges): |
873 | 22dab079 | Antony Chazapis | raise StopIteration |
874 | 22dab079 | Antony Chazapis | try:
|
875 | 22dab079 | Antony Chazapis | if self.range_index == -1: |
876 | 22dab079 | Antony Chazapis | raise StopIteration |
877 | 22dab079 | Antony Chazapis | return self.part_iterator() |
878 | 22dab079 | Antony Chazapis | except StopIteration: |
879 | 22dab079 | Antony Chazapis | self.range_index += 1 |
880 | 22dab079 | Antony Chazapis | out = [] |
881 | 22dab079 | Antony Chazapis | if self.range_index < len(self.ranges): |
882 | 22dab079 | Antony Chazapis | # Part header.
|
883 | 22dab079 | Antony Chazapis | self.offset, self.length = self.ranges[self.range_index] |
884 | 8cb45c13 | Antony Chazapis | self.file_index = 0 |
885 | 22dab079 | Antony Chazapis | if self.range_index > 0: |
886 | 22dab079 | Antony Chazapis | out.append('')
|
887 | 22dab079 | Antony Chazapis | out.append('--' + self.boundary) |
888 | 2715ade4 | Sofia Papagiannaki | out.append('Content-Range: bytes %d-%d/%d' % (
|
889 | 2715ade4 | Sofia Papagiannaki | self.offset, self.offset + self.length - 1, self.size)) |
890 | 22dab079 | Antony Chazapis | out.append('Content-Transfer-Encoding: binary')
|
891 | 22dab079 | Antony Chazapis | out.append('')
|
892 | 22dab079 | Antony Chazapis | out.append('')
|
893 | 22dab079 | Antony Chazapis | return '\r\n'.join(out) |
894 | 22dab079 | Antony Chazapis | else:
|
895 | 22dab079 | Antony Chazapis | # Footer.
|
896 | 22dab079 | Antony Chazapis | out.append('')
|
897 | 22dab079 | Antony Chazapis | out.append('--' + self.boundary + '--') |
898 | 22dab079 | Antony Chazapis | out.append('')
|
899 | 22dab079 | Antony Chazapis | return '\r\n'.join(out) |
900 | 22dab079 | Antony Chazapis | |
901 | 2715ade4 | Sofia Papagiannaki | |
902 | 8cb45c13 | Antony Chazapis | def object_data_response(request, sizes, hashmaps, meta, public=False): |
903 | 7bef5750 | Antony Chazapis | """Get the HttpResponse object for replying with the object's data."""
|
904 | 2715ade4 | Sofia Papagiannaki | |
905 | 7bef5750 | Antony Chazapis | # Range handling.
|
906 | 8cb45c13 | Antony Chazapis | size = sum(sizes)
|
907 | 7bef5750 | Antony Chazapis | ranges = get_range(request, size) |
908 | 7bef5750 | Antony Chazapis | if ranges is None: |
909 | 7bef5750 | Antony Chazapis | ranges = [(0, size)]
|
910 | 7bef5750 | Antony Chazapis | ret = 200
|
911 | 7bef5750 | Antony Chazapis | else:
|
912 | 7bef5750 | Antony Chazapis | check = [True for offset, length in ranges if |
913 | 2715ade4 | Sofia Papagiannaki | length <= 0 or length > size or |
914 | 2715ade4 | Sofia Papagiannaki | offset < 0 or offset >= size or |
915 | 2715ade4 | Sofia Papagiannaki | offset + length > size] |
916 | 7bef5750 | Antony Chazapis | if len(check) > 0: |
917 | ad0efdb3 | Ilias Tsitsimpis | raise faults.RangeNotSatisfiable(
|
918 | ad0efdb3 | Ilias Tsitsimpis | 'Requested range exceeds object limits')
|
919 | 7bef5750 | Antony Chazapis | ret = 206
|
920 | 15d465b8 | Antony Chazapis | if_range = request.META.get('HTTP_IF_RANGE')
|
921 | 15d465b8 | Antony Chazapis | if if_range:
|
922 | 6d1e6dce | Sofia Papagiannaki | try:
|
923 | 15d465b8 | Antony Chazapis | # Modification time has passed instead.
|
924 | 6d1e6dce | Sofia Papagiannaki | last_modified = parse_http_date(if_range) |
925 | 6d1e6dce | Sofia Papagiannaki | if last_modified != meta['modified']: |
926 | 6d1e6dce | Sofia Papagiannaki | ranges = [(0, size)]
|
927 | 6d1e6dce | Sofia Papagiannaki | ret = 200
|
928 | 6d1e6dce | Sofia Papagiannaki | except ValueError: |
929 | 33b4e4a6 | Antony Chazapis | if if_range != meta['checksum']: |
930 | 6d1e6dce | Sofia Papagiannaki | ranges = [(0, size)]
|
931 | 6d1e6dce | Sofia Papagiannaki | ret = 200
|
932 | 2715ade4 | Sofia Papagiannaki | |
933 | 7bef5750 | Antony Chazapis | if ret == 206 and len(ranges) > 1: |
934 | 7bef5750 | Antony Chazapis | boundary = uuid.uuid4().hex |
935 | 7bef5750 | Antony Chazapis | else:
|
936 | 7bef5750 | Antony Chazapis | boundary = ''
|
937 | 39593b2b | Giorgos Verigakis | wrapper = ObjectWrapper(request.backend, ranges, sizes, hashmaps, boundary) |
938 | 7bef5750 | Antony Chazapis | response = HttpResponse(wrapper, status=ret) |
939 | 469d0997 | Georgios D. Tsoukalas | put_object_headers( |
940 | ad0efdb3 | Ilias Tsitsimpis | response, meta, restricted=public, |
941 | ad0efdb3 | Ilias Tsitsimpis | token=getattr(request, 'token', None)) |
942 | 7bef5750 | Antony Chazapis | if ret == 206: |
943 | 7bef5750 | Antony Chazapis | if len(ranges) == 1: |
944 | 7bef5750 | Antony Chazapis | offset, length = ranges[0]
|
945 | 2715ade4 | Sofia Papagiannaki | response[ |
946 | 2715ade4 | Sofia Papagiannaki | 'Content-Length'] = length # Update with the correct length. |
947 | 2715ade4 | Sofia Papagiannaki | response['Content-Range'] = 'bytes %d-%d/%d' % ( |
948 | 2715ade4 | Sofia Papagiannaki | offset, offset + length - 1, size)
|
949 | 7bef5750 | Antony Chazapis | else:
|
950 | 7bef5750 | Antony Chazapis | del(response['Content-Length']) |
951 | 2715ade4 | Sofia Papagiannaki | response['Content-Type'] = 'multipart/byteranges; boundary=%s' % ( |
952 | 2715ade4 | Sofia Papagiannaki | boundary,) |
953 | 7bef5750 | Antony Chazapis | return response
|
954 | 7bef5750 | Antony Chazapis | |
955 | 2715ade4 | Sofia Papagiannaki | |
956 | 39593b2b | Giorgos Verigakis | def put_object_block(request, hashmap, data, offset): |
957 | cb146cf9 | Antony Chazapis | """Put one block of data at the given offset."""
|
958 | 2715ade4 | Sofia Papagiannaki | |
959 | 39593b2b | Giorgos Verigakis | bi = int(offset / request.backend.block_size)
|
960 | 39593b2b | Giorgos Verigakis | bo = offset % request.backend.block_size |
961 | 39593b2b | Giorgos Verigakis | bl = min(len(data), request.backend.block_size - bo) |
962 | cb146cf9 | Antony Chazapis | if bi < len(hashmap): |
963 | 39593b2b | Giorgos Verigakis | hashmap[bi] = request.backend.update_block(hashmap[bi], data[:bl], bo) |
964 | cb146cf9 | Antony Chazapis | else:
|
965 | 39593b2b | Giorgos Verigakis | hashmap.append(request.backend.put_block(('\x00' * bo) + data[:bl]))
|
966 | 2715ade4 | Sofia Papagiannaki | return bl # Return ammount of data written. |
967 | 2715ade4 | Sofia Papagiannaki | |
968 | cb146cf9 | Antony Chazapis | |
969 | b3155065 | Antony Chazapis | def hashmap_md5(backend, hashmap, size): |
970 | cddcf432 | chazapis | """Produce the MD5 sum from the data in the hashmap."""
|
971 | 2715ade4 | Sofia Papagiannaki | |
972 | ad0efdb3 | Ilias Tsitsimpis | # TODO: Search backend for the MD5 of another object
|
973 | ad0efdb3 | Ilias Tsitsimpis | # with the same hashmap and size...
|
974 | cddcf432 | chazapis | md5 = hashlib.md5() |
975 | b3155065 | Antony Chazapis | bs = backend.block_size |
976 | cddcf432 | chazapis | for bi, hash in enumerate(hashmap): |
977 | 2715ade4 | Sofia Papagiannaki | data = backend.get_block(hash) # Blocks come in padded. |
978 | cddcf432 | chazapis | if bi == len(hashmap) - 1: |
979 | c9865fe1 | Antony Chazapis | data = data[:size % bs] |
980 | c9865fe1 | Antony Chazapis | md5.update(data) |
981 | cddcf432 | chazapis | return md5.hexdigest().lower()
|
982 | 49133392 | Antony Chazapis | |
983 | 2715ade4 | Sofia Papagiannaki | |
984 | af7bb62f | Antony Chazapis | def simple_list_response(request, l): |
985 | 6b6b6c1e | Antony Chazapis | if request.serialization == 'text': |
986 | 6b6b6c1e | Antony Chazapis | return '\n'.join(l) + '\n' |
987 | 6b6b6c1e | Antony Chazapis | if request.serialization == 'xml': |
988 | af7bb62f | Antony Chazapis | return render_to_string('items.xml', {'items': l}) |
989 | 6b6b6c1e | Antony Chazapis | if request.serialization == 'json': |
990 | 6b6b6c1e | Antony Chazapis | return json.dumps(l)
|
991 | 6b6b6c1e | Antony Chazapis | |
992 | 35d42381 | Vangelis Koukis | |
993 | edb7875c | Christos Stavrakakis | from pithos.backends.util import PithosBackendPool |
994 | 61c5b615 | Sofia Papagiannaki | |
995 | 47462eda | Filippos Giannakos | if RADOS_STORAGE:
|
996 | ad0efdb3 | Ilias Tsitsimpis | BLOCK_PARAMS = {'mappool': RADOS_POOL_MAPS,
|
997 | ad0efdb3 | Ilias Tsitsimpis | 'blockpool': RADOS_POOL_BLOCKS, }
|
998 | 47462eda | Filippos Giannakos | else:
|
999 | ad0efdb3 | Ilias Tsitsimpis | BLOCK_PARAMS = {'mappool': None, |
1000 | ad0efdb3 | Ilias Tsitsimpis | 'blockpool': None, } |
1001 | 35d42381 | Vangelis Koukis | |
1002 | 74cbb94a | Sofia Papagiannaki | BACKEND_KWARGS = dict(
|
1003 | 74cbb94a | Sofia Papagiannaki | db_module=BACKEND_DB_MODULE, |
1004 | 74cbb94a | Sofia Papagiannaki | db_connection=BACKEND_DB_CONNECTION, |
1005 | 74cbb94a | Sofia Papagiannaki | block_module=BACKEND_BLOCK_MODULE, |
1006 | 74cbb94a | Sofia Papagiannaki | block_path=BACKEND_BLOCK_PATH, |
1007 | 74cbb94a | Sofia Papagiannaki | block_umask=BACKEND_BLOCK_UMASK, |
1008 | 74cbb94a | Sofia Papagiannaki | block_size=BACKEND_BLOCK_SIZE, |
1009 | 74cbb94a | Sofia Papagiannaki | hash_algorithm=BACKEND_HASH_ALGORITHM, |
1010 | 74cbb94a | Sofia Papagiannaki | queue_module=BACKEND_QUEUE_MODULE, |
1011 | 74cbb94a | Sofia Papagiannaki | queue_hosts=BACKEND_QUEUE_HOSTS, |
1012 | 74cbb94a | Sofia Papagiannaki | queue_exchange=BACKEND_QUEUE_EXCHANGE, |
1013 | 74cbb94a | Sofia Papagiannaki | astakos_url=ASTAKOS_BASE_URL, |
1014 | 74cbb94a | Sofia Papagiannaki | service_token=SERVICE_TOKEN, |
1015 | 74cbb94a | Sofia Papagiannaki | astakosclient_poolsize=ASTAKOSCLIENT_POOLSIZE, |
1016 | 74cbb94a | Sofia Papagiannaki | free_versioning=BACKEND_FREE_VERSIONING, |
1017 | 74cbb94a | Sofia Papagiannaki | block_params=BLOCK_PARAMS, |
1018 | 74cbb94a | Sofia Papagiannaki | public_url_security=PUBLIC_URL_SECURITY, |
1019 | 74cbb94a | Sofia Papagiannaki | public_url_alphabet=PUBLIC_URL_ALPHABET, |
1020 | 74cbb94a | Sofia Papagiannaki | account_quota_policy=BACKEND_ACCOUNT_QUOTA, |
1021 | 74cbb94a | Sofia Papagiannaki | container_quota_policy=BACKEND_CONTAINER_QUOTA, |
1022 | 74cbb94a | Sofia Papagiannaki | container_versioning_policy=BACKEND_VERSIONING) |
1023 | 74cbb94a | Sofia Papagiannaki | |
1024 | 74cbb94a | Sofia Papagiannaki | _pithos_backend_pool = PithosBackendPool(size=BACKEND_POOL_SIZE, |
1025 | 74cbb94a | Sofia Papagiannaki | **BACKEND_KWARGS) |
1026 | 35d42381 | Vangelis Koukis | |
1027 | 65bbcd43 | Christos Stavrakakis | |
1028 | 35d42381 | Vangelis Koukis | def get_backend(): |
1029 | 74cbb94a | Sofia Papagiannaki | if BACKEND_POOL_ENABLED:
|
1030 | 74cbb94a | Sofia Papagiannaki | backend = _pithos_backend_pool.pool_get() |
1031 | 74cbb94a | Sofia Papagiannaki | else:
|
1032 | 74cbb94a | Sofia Papagiannaki | backend = connect_backend(**BACKEND_KWARGS) |
1033 | 74cbb94a | Sofia Papagiannaki | backend.serials = [] |
1034 | f77b1da9 | Stratos Psomadakis | backend.messages = [] |
1035 | edb7875c | Christos Stavrakakis | return backend
|
1036 | 35d42381 | Vangelis Koukis | |
1037 | 35d42381 | Vangelis Koukis | |
1038 | 9fefc052 | Antony Chazapis | def update_request_headers(request): |
1039 | 9fefc052 | Antony Chazapis | # Handle URL-encoded keys and values.
|
1040 | 2715ade4 | Sofia Papagiannaki | meta = dict([(
|
1041 | 2715ade4 | Sofia Papagiannaki | k, v) for k, v in request.META.iteritems() if k.startswith('HTTP_')]) |
1042 | 88283e9e | Antony Chazapis | for k, v in meta.iteritems(): |
1043 | 88283e9e | Antony Chazapis | try:
|
1044 | 88283e9e | Antony Chazapis | k.decode('ascii')
|
1045 | 88283e9e | Antony Chazapis | v.decode('ascii')
|
1046 | 88283e9e | Antony Chazapis | except UnicodeDecodeError: |
1047 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Bad character in headers.') |
1048 | 88283e9e | Antony Chazapis | if '%' in k or '%' in v: |
1049 | 88283e9e | Antony Chazapis | del(request.META[k])
|
1050 | 2715ade4 | Sofia Papagiannaki | request.META[unquote(k)] = smart_unicode(unquote( |
1051 | 2715ade4 | Sofia Papagiannaki | v), strings_only=True)
|
1052 | 2715ade4 | Sofia Papagiannaki | |
1053 | 9fefc052 | Antony Chazapis | |
1054 | b956618e | Antony Chazapis | def update_response_headers(request, response): |
1055 | 9fefc052 | Antony Chazapis | # URL-encode unicode in headers.
|
1056 | 9fefc052 | Antony Chazapis | meta = response.items() |
1057 | 9fefc052 | Antony Chazapis | for k, v in meta: |
1058 | 88283e9e | Antony Chazapis | if (k.startswith('X-Account-') or k.startswith('X-Container-') or |
1059 | 2715ade4 | Sofia Papagiannaki | k.startswith('X-Object-') or k.startswith('Content-')): |
1060 | 9fefc052 | Antony Chazapis | del(response[k])
|
1061 | 88283e9e | Antony Chazapis | response[quote(k)] = quote(v, safe='/=,:@; ')
|
1062 | b956618e | Antony Chazapis | |
1063 | 2715ade4 | Sofia Papagiannaki | |
1064 | 65bbcd43 | Christos Stavrakakis | def get_pithos_usage(token): |
1065 | 65bbcd43 | Christos Stavrakakis | """Get Pithos Usage from astakos."""
|
1066 | e3ff6830 | Georgios D. Tsoukalas | astakos = AstakosClient(ASTAKOS_BASE_URL, retry=2, use_pool=True, |
1067 | e3ff6830 | Georgios D. Tsoukalas | logger=logger) |
1068 | 02de6286 | Sofia Papagiannaki | quotas = astakos.get_quotas(token)['system']
|
1069 | 02de6286 | Sofia Papagiannaki | pithos_resources = [r['name'] for r in resources] |
1070 | 02de6286 | Sofia Papagiannaki | map(quotas.pop, filter(lambda k: k not in pithos_resources, quotas.keys())) |
1071 | cc62d2ab | Sofia Papagiannaki | return quotas.popitem()[-1] # assume only one resource |
1072 | c846fad1 | Sofia Papagiannaki | |
1073 | 2715ade4 | Sofia Papagiannaki | |
1074 | b90584d0 | Sofia Papagiannaki | def api_method(http_method=None, token_required=True, user_required=True, |
1075 | b90584d0 | Sofia Papagiannaki | logger=None, format_allowed=False, serializations=None, |
1076 | b90584d0 | Sofia Papagiannaki | strict_serlization=False, lock_container_path=False): |
1077 | d823a562 | Kostas Papadimitriou | serializations = serializations or ['json', 'xml'] |
1078 | cc62d2ab | Sofia Papagiannaki | |
1079 | b956618e | Antony Chazapis | def decorator(func): |
1080 | d630c78b | Sofia Papagiannaki | @api.api_method(http_method=http_method, token_required=token_required,
|
1081 | d630c78b | Sofia Papagiannaki | user_required=user_required, |
1082 | 47ef53d5 | Christos Stavrakakis | logger=logger, format_allowed=format_allowed, |
1083 | 6b560707 | Sofia Papagiannaki | astakos_url=ASTAKOS_BASE_URL, |
1084 | b5aeeb2f | Kostas Papadimitriou | serializations=serializations, |
1085 | b5aeeb2f | Kostas Papadimitriou | strict_serlization=strict_serlization) |
1086 | b956618e | Antony Chazapis | @wraps(func)
|
1087 | b956618e | Antony Chazapis | def wrapper(request, *args, **kwargs): |
1088 | 65bbcd43 | Christos Stavrakakis | # The args variable may contain up to (account, container, object).
|
1089 | 65bbcd43 | Christos Stavrakakis | if len(args) > 1 and len(args[1]) > 256: |
1090 | 65bbcd43 | Christos Stavrakakis | raise faults.BadRequest("Container name too large") |
1091 | 65bbcd43 | Christos Stavrakakis | if len(args) > 2 and len(args[2]) > 1024: |
1092 | 65bbcd43 | Christos Stavrakakis | raise faults.BadRequest('Object name too large.') |
1093 | 2715ade4 | Sofia Papagiannaki | |
1094 | d47565d8 | Buildbot | success_status = False
|
1095 | d47565d8 | Buildbot | try:
|
1096 | 65bbcd43 | Christos Stavrakakis | # Add a PithosBackend as attribute of the request object
|
1097 | d47565d8 | Buildbot | request.backend = get_backend() |
1098 | d47565d8 | Buildbot | request.backend.pre_exec(lock_container_path) |
1099 | 9f135224 | Sofia Papagiannaki | |
1100 | 65bbcd43 | Christos Stavrakakis | # Many API method expect thet X-Auth-Token in request,token
|
1101 | 65bbcd43 | Christos Stavrakakis | request.token = request.x_auth_token |
1102 | 65bbcd43 | Christos Stavrakakis | update_request_headers(request) |
1103 | b956618e | Antony Chazapis | response = func(request, *args, **kwargs) |
1104 | b956618e | Antony Chazapis | update_response_headers(request, response) |
1105 | 9f135224 | Sofia Papagiannaki | |
1106 | d47565d8 | Buildbot | success_status = True
|
1107 | b956618e | Antony Chazapis | return response
|
1108 | d47565d8 | Buildbot | finally:
|
1109 | d47565d8 | Buildbot | # Always close PithosBackend connection
|
1110 | d47565d8 | Buildbot | if getattr(request, "backend", None) is not None: |
1111 | d47565d8 | Buildbot | request.backend.post_exec(success_status) |
1112 | d47565d8 | Buildbot | request.backend.close() |
1113 | b956618e | Antony Chazapis | return wrapper
|
1114 | b956618e | Antony Chazapis | return decorator
|
1115 | 63de12cf | Sofia Papagiannaki | |
1116 | 63de12cf | Sofia Papagiannaki | |
1117 | 63de12cf | Sofia Papagiannaki | def get_token_from_cookie(request): |
1118 | 63de12cf | Sofia Papagiannaki | assert(request.method == 'GET'),\ |
1119 | 63de12cf | Sofia Papagiannaki | "Cookie based authentication is only allowed to GET requests"
|
1120 | 63de12cf | Sofia Papagiannaki | token = None
|
1121 | 63de12cf | Sofia Papagiannaki | if COOKIE_NAME in request.COOKIES: |
1122 | 63de12cf | Sofia Papagiannaki | cookie_value = unquote(request.COOKIES.get(COOKIE_NAME, ''))
|
1123 | 63de12cf | Sofia Papagiannaki | account, sep, token = cookie_value.partition('|')
|
1124 | 63de12cf | Sofia Papagiannaki | return token
|
1125 | 63de12cf | Sofia Papagiannaki | |
1126 | 63de12cf | Sofia Papagiannaki | |
1127 | 63de12cf | Sofia Papagiannaki | def view_method(): |
1128 | 63de12cf | Sofia Papagiannaki | """Decorator function for views."""
|
1129 | 63de12cf | Sofia Papagiannaki | |
1130 | 63de12cf | Sofia Papagiannaki | def decorator(func): |
1131 | 63de12cf | Sofia Papagiannaki | @wraps(func)
|
1132 | 63de12cf | Sofia Papagiannaki | def wrapper(request, *args, **kwargs): |
1133 | 48c5b124 | Sofia Papagiannaki | token = get_token_from_cookie(request) |
1134 | 48c5b124 | Sofia Papagiannaki | if token is None: |
1135 | 8198fe61 | Sofia Papagiannaki | return HttpResponseRedirect('%s?next=%s' % ( |
1136 | 8198fe61 | Sofia Papagiannaki | LOGIN_URL, join_urls(BASE_HOST, request.path))) |
1137 | 48c5b124 | Sofia Papagiannaki | request.META['HTTP_X_AUTH_TOKEN'] = token
|
1138 | 63de12cf | Sofia Papagiannaki | # Get the response object
|
1139 | 63de12cf | Sofia Papagiannaki | response = func(request, *args, **kwargs) |
1140 | f5ff1d1e | Sofia Papagiannaki | if response.status_code == 404: |
1141 | d2d09227 | Sofia Papagiannaki | raise Http404()
|
1142 | d2d09227 | Sofia Papagiannaki | elif response.status_code in [401, 403]: |
1143 | d2d09227 | Sofia Papagiannaki | return HttpResponseForbidden()
|
1144 | f5ff1d1e | Sofia Papagiannaki | return response
|
1145 | 63de12cf | Sofia Papagiannaki | return wrapper
|
1146 | 63de12cf | Sofia Papagiannaki | return decorator
|
1147 | 133e3fcf | Sofia Papagiannaki | |
1148 | 133e3fcf | Sofia Papagiannaki | |
1149 | 133e3fcf | Sofia Papagiannaki | class Checksum: |
1150 | 133e3fcf | Sofia Papagiannaki | def __init__(self): |
1151 | 133e3fcf | Sofia Papagiannaki | self.md5 = hashlib.md5()
|
1152 | 133e3fcf | Sofia Papagiannaki | |
1153 | 133e3fcf | Sofia Papagiannaki | def update(self, data): |
1154 | 133e3fcf | Sofia Papagiannaki | self.md5.update(data)
|
1155 | 133e3fcf | Sofia Papagiannaki | |
1156 | 133e3fcf | Sofia Papagiannaki | def hexdigest(self): |
1157 | 133e3fcf | Sofia Papagiannaki | return self.md5.hexdigest().lower() |
1158 | 133e3fcf | Sofia Papagiannaki | |
1159 | cc62d2ab | Sofia Papagiannaki | |
1160 | 133e3fcf | Sofia Papagiannaki | class NoChecksum: |
1161 | 133e3fcf | Sofia Papagiannaki | def update(self, data): |
1162 | 133e3fcf | Sofia Papagiannaki | pass
|
1163 | 133e3fcf | Sofia Papagiannaki | |
1164 | 133e3fcf | Sofia Papagiannaki | def hexdigest(self): |
1165 | 133e3fcf | Sofia Papagiannaki | return '' |