root / snf-pithos-app / pithos / api / util.py @ 0c6ab9df
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1 | 8f2eb016 | Sofia Papagiannaki | # Copyright 2011-2013 GRNET S.A. All rights reserved.
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2 | 2715ade4 | Sofia Papagiannaki | #
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3 | 5635f9ef | Antony Chazapis | # Redistribution and use in source and binary forms, with or
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4 | 5635f9ef | Antony Chazapis | # without modification, are permitted provided that the following
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5 | 5635f9ef | Antony Chazapis | # conditions are met:
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6 | 2715ade4 | Sofia Papagiannaki | #
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7 | 5635f9ef | Antony Chazapis | # 1. Redistributions of source code must retain the above
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8 | 5635f9ef | Antony Chazapis | # copyright notice, this list of conditions and the following
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9 | 5635f9ef | Antony Chazapis | # disclaimer.
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10 | 2715ade4 | Sofia Papagiannaki | #
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11 | 5635f9ef | Antony Chazapis | # 2. Redistributions in binary form must reproduce the above
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12 | 5635f9ef | Antony Chazapis | # copyright notice, this list of conditions and the following
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13 | 5635f9ef | Antony Chazapis | # disclaimer in the documentation and/or other materials
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14 | 5635f9ef | Antony Chazapis | # provided with the distribution.
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15 | 2715ade4 | Sofia Papagiannaki | #
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16 | 5635f9ef | Antony Chazapis | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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17 | 5635f9ef | Antony Chazapis | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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18 | 5635f9ef | Antony Chazapis | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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19 | 5635f9ef | Antony Chazapis | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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20 | 5635f9ef | Antony Chazapis | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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21 | 5635f9ef | Antony Chazapis | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 | 5635f9ef | Antony Chazapis | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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23 | 5635f9ef | Antony Chazapis | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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24 | 5635f9ef | Antony Chazapis | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | 5635f9ef | Antony Chazapis | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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26 | 5635f9ef | Antony Chazapis | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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27 | 5635f9ef | Antony Chazapis | # POSSIBILITY OF SUCH DAMAGE.
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28 | 2715ade4 | Sofia Papagiannaki | #
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29 | 5635f9ef | Antony Chazapis | # The views and conclusions contained in the software and
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30 | 5635f9ef | Antony Chazapis | # documentation are those of the authors and should not be
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31 | 5635f9ef | Antony Chazapis | # interpreted as representing official policies, either expressed
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32 | 5635f9ef | Antony Chazapis | # or implied, of GRNET S.A.
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33 | 5635f9ef | Antony Chazapis | |
34 | b956618e | Antony Chazapis | from functools import wraps |
35 | 65bbcd43 | Christos Stavrakakis | from datetime import datetime |
36 | 8f2eb016 | Sofia Papagiannaki | from urllib import quote, unquote, urlencode |
37 | 8c7e1398 | Sofia Papagiannaki | from urlparse import urlunsplit, urlsplit, parse_qsl |
38 | b956618e | Antony Chazapis | |
39 | 798143d9 | Sofia Papagiannaki | from django.http import (HttpResponse, Http404, HttpResponseRedirect, |
40 | 798143d9 | Sofia Papagiannaki | HttpResponseNotAllowed) |
41 | 6b6b6c1e | Antony Chazapis | from django.template.loader import render_to_string |
42 | 1993fea9 | Antony Chazapis | from django.utils import simplejson as json |
43 | 22dab079 | Antony Chazapis | from django.utils.http import http_date, parse_etags |
44 | fb064032 | Antony Chazapis | from django.utils.encoding import smart_unicode, smart_str |
45 | 817890f2 | Antony Chazapis | from django.core.files.uploadhandler import FileUploadHandler |
46 | 817890f2 | Antony Chazapis | from django.core.files.uploadedfile import UploadedFile |
47 | a3fcee5b | Sofia Papagiannaki | from django.core.urlresolvers import reverse |
48 | 8f2eb016 | Sofia Papagiannaki | from django.core.exceptions import PermissionDenied |
49 | b956618e | Antony Chazapis | |
50 | 896754a6 | Christos Stavrakakis | from snf_django.lib.api.parsedate import parse_http_date_safe, parse_http_date |
51 | 65bbcd43 | Christos Stavrakakis | from snf_django.lib import api |
52 | 65bbcd43 | Christos Stavrakakis | from snf_django.lib.api import faults, utils |
53 | 5a96180b | Antony Chazapis | |
54 | a7dff008 | Antony Chazapis | from pithos.api.settings import (BACKEND_DB_MODULE, BACKEND_DB_CONNECTION, |
55 | 761c2b3c | root | BACKEND_BLOCK_MODULE, BACKEND_BLOCK_PATH, |
56 | 761c2b3c | root | BACKEND_BLOCK_UMASK, |
57 | f4fbb0fa | Sofia Papagiannaki | BACKEND_QUEUE_MODULE, BACKEND_QUEUE_HOSTS, |
58 | b17e5550 | Giorgos Korfiatis | BACKEND_QUEUE_EXCHANGE, |
59 | 16f2673e | Sofia Papagiannaki | ASTAKOSCLIENT_POOLSIZE, |
60 | b17e5550 | Giorgos Korfiatis | SERVICE_TOKEN, |
61 | f759041f | Ilias Tsitsimpis | ASTAKOS_AUTH_URL, |
62 | 29148653 | Sofia Papagiannaki | BACKEND_ACCOUNT_QUOTA, |
63 | 29148653 | Sofia Papagiannaki | BACKEND_CONTAINER_QUOTA, |
64 | 29148653 | Sofia Papagiannaki | BACKEND_VERSIONING, BACKEND_FREE_VERSIONING, |
65 | 74cbb94a | Sofia Papagiannaki | BACKEND_POOL_ENABLED, BACKEND_POOL_SIZE, |
66 | 369a7b41 | Sofia Papagiannaki | BACKEND_BLOCK_SIZE, BACKEND_HASH_ALGORITHM, |
67 | 47462eda | Filippos Giannakos | RADOS_STORAGE, RADOS_POOL_BLOCKS, |
68 | 56f3c759 | Sofia Papagiannaki | RADOS_POOL_MAPS, TRANSLATE_UUIDS, |
69 | 133e3fcf | Sofia Papagiannaki | PUBLIC_URL_SECURITY, PUBLIC_URL_ALPHABET, |
70 | 8f2eb016 | Sofia Papagiannaki | BASE_HOST, UPDATE_MD5, VIEW_PREFIX, |
71 | 4bf0ab85 | Sofia Papagiannaki | OAUTH2_CLIENT_CREDENTIALS, UNSAFE_DOMAIN) |
72 | d4e4e501 | Christos Stavrakakis | |
73 | 02de6286 | Sofia Papagiannaki | from pithos.api.resources import resources |
74 | 74cbb94a | Sofia Papagiannaki | from pithos.backends import connect_backend |
75 | 32454501 | Sofia Papagiannaki | from pithos.backends.base import (NotAllowedError, QuotaError, ItemNotExists, |
76 | 32454501 | Sofia Papagiannaki | VersionNotExists) |
77 | a3fcee5b | Sofia Papagiannaki | |
78 | a3fcee5b | Sofia Papagiannaki | from synnefo.lib import join_urls |
79 | ae73cdc0 | Sofia Papagiannaki | from synnefo.util import text |
80 | a3fcee5b | Sofia Papagiannaki | |
81 | e6fb591c | Ilias Tsitsimpis | from astakosclient import AstakosClient |
82 | 8f2eb016 | Sofia Papagiannaki | from astakosclient.errors import NoUserName, NoUUID, AstakosClientException |
83 | b956618e | Antony Chazapis | |
84 | b956618e | Antony Chazapis | import logging |
85 | 22dab079 | Antony Chazapis | import re |
86 | cbfb6636 | Sofia Papagiannaki | import hashlib |
87 | 7bef5750 | Antony Chazapis | import uuid |
88 | c48acbfd | Sofia Papagiannaki | import decimal |
89 | 8c793655 | Antony Chazapis | |
90 | b956618e | Antony Chazapis | logger = logging.getLogger(__name__) |
91 | b956618e | Antony Chazapis | |
92 | b956618e | Antony Chazapis | |
93 | c48acbfd | Sofia Papagiannaki | def json_encode_decimal(obj): |
94 | c48acbfd | Sofia Papagiannaki | if isinstance(obj, decimal.Decimal): |
95 | c48acbfd | Sofia Papagiannaki | return str(obj) |
96 | c48acbfd | Sofia Papagiannaki | raise TypeError(repr(obj) + " is not JSON serializable") |
97 | c48acbfd | Sofia Papagiannaki | |
98 | 2715ade4 | Sofia Papagiannaki | |
99 | 804e8fe7 | Antony Chazapis | def rename_meta_key(d, old, new): |
100 | 804e8fe7 | Antony Chazapis | if old not in d: |
101 | 804e8fe7 | Antony Chazapis | return
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102 | 804e8fe7 | Antony Chazapis | d[new] = d[old] |
103 | 804e8fe7 | Antony Chazapis | del(d[old])
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104 | 804e8fe7 | Antony Chazapis | |
105 | 2715ade4 | Sofia Papagiannaki | |
106 | 02c0c3fa | Antony Chazapis | def printable_header_dict(d): |
107 | b956618e | Antony Chazapis | """Format a meta dictionary for printing out json/xml.
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108 | 2715ade4 | Sofia Papagiannaki |
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109 | 804e8fe7 | Antony Chazapis | Convert all keys to lower case and replace dashes with underscores.
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110 | 804e8fe7 | Antony Chazapis | Format 'last_modified' timestamp.
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111 | b956618e | Antony Chazapis | """
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112 | 2715ade4 | Sofia Papagiannaki | |
113 | 87835e94 | Nanakos Chrysostomos | timestamps = ('last_modified', 'x_container_until_timestamp', |
114 | 87835e94 | Nanakos Chrysostomos | 'x_acount_until_timestamp')
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115 | 87835e94 | Nanakos Chrysostomos | for timestamp in timestamps: |
116 | 87835e94 | Nanakos Chrysostomos | if timestamp in d and d[timestamp]: |
117 | 87835e94 | Nanakos Chrysostomos | d[timestamp] = utils.isoformat( |
118 | f759041f | Ilias Tsitsimpis | datetime.fromtimestamp(d[timestamp])) |
119 | b956618e | Antony Chazapis | return dict([(k.lower().replace('-', '_'), v) for k, v in d.iteritems()]) |
120 | b956618e | Antony Chazapis | |
121 | 2715ade4 | Sofia Papagiannaki | |
122 | 02c0c3fa | Antony Chazapis | def format_header_key(k): |
123 | 58a6c894 | Antony Chazapis | """Convert underscores to dashes and capitalize intra-dash strings."""
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124 | b956618e | Antony Chazapis | return '-'.join([x.capitalize() for x in k.replace('_', '-').split('-')]) |
125 | b956618e | Antony Chazapis | |
126 | 2715ade4 | Sofia Papagiannaki | |
127 | 02c0c3fa | Antony Chazapis | def get_header_prefix(request, prefix): |
128 | ad0efdb3 | Ilias Tsitsimpis | """Get all prefix-* request headers in a dict.
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129 | ad0efdb3 | Ilias Tsitsimpis | Reformat keys with format_header_key()."""
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130 | 2715ade4 | Sofia Papagiannaki | |
131 | b956618e | Antony Chazapis | prefix = 'HTTP_' + prefix.upper().replace('-', '_') |
132 | 3ab38c43 | Antony Chazapis | # TODO: Document or remove '~' replacing.
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133 | ad0efdb3 | Ilias Tsitsimpis | return dict([(format_header_key(k[5:]), v.replace('~', '')) |
134 | ad0efdb3 | Ilias Tsitsimpis | for k, v in request.META.iteritems() |
135 | ad0efdb3 | Ilias Tsitsimpis | if k.startswith(prefix) and len(k) > len(prefix)]) |
136 | 02c0c3fa | Antony Chazapis | |
137 | 2715ade4 | Sofia Papagiannaki | |
138 | 62bf8157 | Antony Chazapis | def check_meta_headers(meta): |
139 | 62bf8157 | Antony Chazapis | if len(meta) > 90: |
140 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Too many headers.') |
141 | 62bf8157 | Antony Chazapis | for k, v in meta.iteritems(): |
142 | 62bf8157 | Antony Chazapis | if len(k) > 128: |
143 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Header name too large.') |
144 | 62bf8157 | Antony Chazapis | if len(v) > 256: |
145 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Header value too large.') |
146 | 62bf8157 | Antony Chazapis | |
147 | 2715ade4 | Sofia Papagiannaki | |
148 | 02c0c3fa | Antony Chazapis | def get_account_headers(request): |
149 | 02c0c3fa | Antony Chazapis | meta = get_header_prefix(request, 'X-Account-Meta-')
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150 | 62bf8157 | Antony Chazapis | check_meta_headers(meta) |
151 | 02c0c3fa | Antony Chazapis | groups = {} |
152 | 02c0c3fa | Antony Chazapis | for k, v in get_header_prefix(request, 'X-Account-Group-').iteritems(): |
153 | 02c0c3fa | Antony Chazapis | n = k[16:].lower()
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154 | 02c0c3fa | Antony Chazapis | if '-' in n or '_' in n: |
155 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Bad characters in group name') |
156 | 02c0c3fa | Antony Chazapis | groups[n] = v.replace(' ', '').split(',') |
157 | 40d6b76d | Antony Chazapis | while '' in groups[n]: |
158 | 02c0c3fa | Antony Chazapis | groups[n].remove('')
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159 | 02c0c3fa | Antony Chazapis | return meta, groups
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160 | 02c0c3fa | Antony Chazapis | |
161 | 2715ade4 | Sofia Papagiannaki | |
162 | 647a5f48 | Antony Chazapis | def put_account_headers(response, meta, groups, policy): |
163 | f6c97079 | Antony Chazapis | if 'count' in meta: |
164 | f6c97079 | Antony Chazapis | response['X-Account-Container-Count'] = meta['count'] |
165 | f6c97079 | Antony Chazapis | if 'bytes' in meta: |
166 | f6c97079 | Antony Chazapis | response['X-Account-Bytes-Used'] = meta['bytes'] |
167 | d065f612 | Antony Chazapis | response['Last-Modified'] = http_date(int(meta['modified'])) |
168 | b956618e | Antony Chazapis | for k in [x for x in meta.keys() if x.startswith('X-Account-Meta-')]: |
169 | 2715ade4 | Sofia Papagiannaki | response[smart_str( |
170 | 2715ade4 | Sofia Papagiannaki | k, strings_only=True)] = smart_str(meta[k], strings_only=True) |
171 | 83dd59c5 | Antony Chazapis | if 'until_timestamp' in meta: |
172 | 2715ade4 | Sofia Papagiannaki | response['X-Account-Until-Timestamp'] = http_date(
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173 | 2715ade4 | Sofia Papagiannaki | int(meta['until_timestamp'])) |
174 | 02c0c3fa | Antony Chazapis | for k, v in groups.iteritems(): |
175 | e7b51248 | Sofia Papagiannaki | k = smart_str(k, strings_only=True)
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176 | e7b51248 | Sofia Papagiannaki | k = format_header_key('X-Account-Group-' + k)
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177 | e7b51248 | Sofia Papagiannaki | v = smart_str(','.join(v), strings_only=True) |
178 | e7b51248 | Sofia Papagiannaki | response[k] = v |
179 | 647a5f48 | Antony Chazapis | for k, v in policy.iteritems(): |
180 | ad0efdb3 | Ilias Tsitsimpis | response[smart_str(format_header_key('X-Account-Policy-' + k),
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181 | ad0efdb3 | Ilias Tsitsimpis | strings_only=True)] = smart_str(v, strings_only=True) |
182 | 647a5f48 | Antony Chazapis | |
183 | 2715ade4 | Sofia Papagiannaki | |
184 | 02c0c3fa | Antony Chazapis | def get_container_headers(request): |
185 | 02c0c3fa | Antony Chazapis | meta = get_header_prefix(request, 'X-Container-Meta-')
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186 | 62bf8157 | Antony Chazapis | check_meta_headers(meta) |
187 | ad0efdb3 | Ilias Tsitsimpis | policy = dict([(k[19:].lower(), v.replace(' ', '')) for k, v in |
188 | ad0efdb3 | Ilias Tsitsimpis | get_header_prefix(request, |
189 | ad0efdb3 | Ilias Tsitsimpis | 'X-Container-Policy-').iteritems()])
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190 | 3ab38c43 | Antony Chazapis | return meta, policy
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191 | b956618e | Antony Chazapis | |
192 | 2715ade4 | Sofia Papagiannaki | |
193 | 39593b2b | Giorgos Verigakis | def put_container_headers(request, response, meta, policy): |
194 | f6c97079 | Antony Chazapis | if 'count' in meta: |
195 | f6c97079 | Antony Chazapis | response['X-Container-Object-Count'] = meta['count'] |
196 | f6c97079 | Antony Chazapis | if 'bytes' in meta: |
197 | f6c97079 | Antony Chazapis | response['X-Container-Bytes-Used'] = meta['bytes'] |
198 | 58a6c894 | Antony Chazapis | response['Last-Modified'] = http_date(int(meta['modified'])) |
199 | b956618e | Antony Chazapis | for k in [x for x in meta.keys() if x.startswith('X-Container-Meta-')]: |
200 | 2715ade4 | Sofia Papagiannaki | response[smart_str( |
201 | 2715ade4 | Sofia Papagiannaki | k, strings_only=True)] = smart_str(meta[k], strings_only=True) |
202 | 2715ade4 | Sofia Papagiannaki | l = [smart_str(x, strings_only=True) for x in meta['object_meta'] |
203 | 2715ade4 | Sofia Papagiannaki | if x.startswith('X-Object-Meta-')] |
204 | e7b51248 | Sofia Papagiannaki | response['X-Container-Object-Meta'] = ','.join([x[14:] for x in l]) |
205 | 39593b2b | Giorgos Verigakis | response['X-Container-Block-Size'] = request.backend.block_size
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206 | 39593b2b | Giorgos Verigakis | response['X-Container-Block-Hash'] = request.backend.hash_algorithm
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207 | 83dd59c5 | Antony Chazapis | if 'until_timestamp' in meta: |
208 | 2715ade4 | Sofia Papagiannaki | response['X-Container-Until-Timestamp'] = http_date(
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209 | 2715ade4 | Sofia Papagiannaki | int(meta['until_timestamp'])) |
210 | 3ab38c43 | Antony Chazapis | for k, v in policy.iteritems(): |
211 | ad0efdb3 | Ilias Tsitsimpis | response[smart_str(format_header_key('X-Container-Policy-' + k),
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212 | 29148653 | Sofia Papagiannaki | strings_only=True)] = smart_str(v,
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213 | 29148653 | Sofia Papagiannaki | strings_only=True)
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214 | b956618e | Antony Chazapis | |
215 | 2715ade4 | Sofia Papagiannaki | |
216 | 02c0c3fa | Antony Chazapis | def get_object_headers(request): |
217 | 66ce2ca5 | Antony Chazapis | content_type = request.META.get('CONTENT_TYPE', None) |
218 | 02c0c3fa | Antony Chazapis | meta = get_header_prefix(request, 'X-Object-Meta-')
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219 | 62bf8157 | Antony Chazapis | check_meta_headers(meta) |
220 | b956618e | Antony Chazapis | if request.META.get('HTTP_CONTENT_ENCODING'): |
221 | b956618e | Antony Chazapis | meta['Content-Encoding'] = request.META['HTTP_CONTENT_ENCODING'] |
222 | 22dab079 | Antony Chazapis | if request.META.get('HTTP_CONTENT_DISPOSITION'): |
223 | 22dab079 | Antony Chazapis | meta['Content-Disposition'] = request.META['HTTP_CONTENT_DISPOSITION'] |
224 | b956618e | Antony Chazapis | if request.META.get('HTTP_X_OBJECT_MANIFEST'): |
225 | b956618e | Antony Chazapis | meta['X-Object-Manifest'] = request.META['HTTP_X_OBJECT_MANIFEST'] |
226 | 66ce2ca5 | Antony Chazapis | return content_type, meta, get_sharing(request), get_public(request)
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227 | b956618e | Antony Chazapis | |
228 | 2715ade4 | Sofia Papagiannaki | |
229 | 1d2af25c | Sofia Papagiannaki | def put_object_headers(response, meta, restricted=False, token=None, |
230 | 1d2af25c | Sofia Papagiannaki | disposition_type=None):
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231 | 133e3fcf | Sofia Papagiannaki | response['ETag'] = meta['hash'] if not UPDATE_MD5 else meta['checksum'] |
232 | b956618e | Antony Chazapis | response['Content-Length'] = meta['bytes'] |
233 | 8e95eb05 | Sofia Papagiannaki | response.override_serialization = True
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234 | 66ce2ca5 | Antony Chazapis | response['Content-Type'] = meta.get('type', 'application/octet-stream') |
235 | b956618e | Antony Chazapis | response['Last-Modified'] = http_date(int(meta['modified'])) |
236 | 3ab38c43 | Antony Chazapis | if not restricted: |
237 | 4a1c29ea | Antony Chazapis | response['X-Object-Hash'] = meta['hash'] |
238 | 37bee317 | Antony Chazapis | response['X-Object-UUID'] = meta['uuid'] |
239 | 469d0997 | Georgios D. Tsoukalas | if TRANSLATE_UUIDS:
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240 | ad0efdb3 | Ilias Tsitsimpis | meta['modified_by'] = \
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241 | ad0efdb3 | Ilias Tsitsimpis | retrieve_displayname(token, meta['modified_by'])
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242 | 7273ee62 | Sofia Papagiannaki | response['X-Object-Modified-By'] = smart_str(
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243 | 7273ee62 | Sofia Papagiannaki | meta['modified_by'], strings_only=True) |
244 | 7bef5750 | Antony Chazapis | response['X-Object-Version'] = meta['version'] |
245 | 2715ade4 | Sofia Papagiannaki | response['X-Object-Version-Timestamp'] = http_date(
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246 | 2715ade4 | Sofia Papagiannaki | int(meta['version_timestamp'])) |
247 | 7bef5750 | Antony Chazapis | for k in [x for x in meta.keys() if x.startswith('X-Object-Meta-')]: |
248 | 2715ade4 | Sofia Papagiannaki | response[smart_str( |
249 | 2715ade4 | Sofia Papagiannaki | k, strings_only=True)] = smart_str(meta[k], strings_only=True) |
250 | 2715ade4 | Sofia Papagiannaki | for k in ( |
251 | 2715ade4 | Sofia Papagiannaki | 'Content-Encoding', 'Content-Disposition', 'X-Object-Manifest', |
252 | 2715ade4 | Sofia Papagiannaki | 'X-Object-Sharing', 'X-Object-Shared-By', 'X-Object-Allowed-To', |
253 | 2715ade4 | Sofia Papagiannaki | 'X-Object-Public'):
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254 | 7bef5750 | Antony Chazapis | if k in meta: |
255 | e7b51248 | Sofia Papagiannaki | response[k] = smart_str(meta[k], strings_only=True)
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256 | 7bef5750 | Antony Chazapis | else:
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257 | c9af0703 | Antony Chazapis | for k in ('Content-Encoding', 'Content-Disposition'): |
258 | 7bef5750 | Antony Chazapis | if k in meta: |
259 | e8d003e8 | Antony Chazapis | response[k] = smart_str(meta[k], strings_only=True)
|
260 | 1d2af25c | Sofia Papagiannaki | disposition_type = disposition_type if disposition_type in \ |
261 | 1d2af25c | Sofia Papagiannaki | ('inline', 'attachment') else None |
262 | 1d2af25c | Sofia Papagiannaki | if disposition_type is not None: |
263 | 77b8a8e3 | Sofia Papagiannaki | response['Content-Disposition'] = smart_str('%s; filename=%s' % ( |
264 | 77b8a8e3 | Sofia Papagiannaki | disposition_type, meta['name']), strings_only=True) |
265 | b956618e | Antony Chazapis | |
266 | 2715ade4 | Sofia Papagiannaki | |
267 | 8cb45c13 | Antony Chazapis | def update_manifest_meta(request, v_account, meta): |
268 | 8cb45c13 | Antony Chazapis | """Update metadata if the object has an X-Object-Manifest."""
|
269 | 2715ade4 | Sofia Papagiannaki | |
270 | 8cb45c13 | Antony Chazapis | if 'X-Object-Manifest' in meta: |
271 | 4a1c29ea | Antony Chazapis | etag = ''
|
272 | 8cb45c13 | Antony Chazapis | bytes = 0
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273 | 8cb45c13 | Antony Chazapis | try:
|
274 | 2715ade4 | Sofia Papagiannaki | src_container, src_name = split_container_object_string( |
275 | 2715ade4 | Sofia Papagiannaki | '/' + meta['X-Object-Manifest']) |
276 | 2715ade4 | Sofia Papagiannaki | objects = request.backend.list_objects( |
277 | 2715ade4 | Sofia Papagiannaki | request.user_uniq, v_account, |
278 | 2715ade4 | Sofia Papagiannaki | src_container, prefix=src_name, virtual=False)
|
279 | 8cb45c13 | Antony Chazapis | for x in objects: |
280 | 133e3fcf | Sofia Papagiannaki | src_meta = request.backend.get_object_meta( |
281 | 133e3fcf | Sofia Papagiannaki | request.user_uniq, v_account, src_container, x[0],
|
282 | 133e3fcf | Sofia Papagiannaki | 'pithos', x[1]) |
283 | 133e3fcf | Sofia Papagiannaki | etag += (src_meta['hash'] if not UPDATE_MD5 else |
284 | 133e3fcf | Sofia Papagiannaki | src_meta['checksum'])
|
285 | 8cb45c13 | Antony Chazapis | bytes += src_meta['bytes'] |
286 | 8cb45c13 | Antony Chazapis | except:
|
287 | 8cb45c13 | Antony Chazapis | # Ignore errors.
|
288 | 8cb45c13 | Antony Chazapis | return
|
289 | 8cb45c13 | Antony Chazapis | meta['bytes'] = bytes |
290 | 8cb45c13 | Antony Chazapis | md5 = hashlib.md5() |
291 | 4a1c29ea | Antony Chazapis | md5.update(etag) |
292 | 33b4e4a6 | Antony Chazapis | meta['checksum'] = md5.hexdigest().lower()
|
293 | 8cb45c13 | Antony Chazapis | |
294 | ad0efdb3 | Ilias Tsitsimpis | |
295 | 9839cc96 | root | def is_uuid(str): |
296 | 0325be55 | Sofia Papagiannaki | if str is None: |
297 | 0325be55 | Sofia Papagiannaki | return False |
298 | 9839cc96 | root | try:
|
299 | 9839cc96 | root | uuid.UUID(str)
|
300 | 9839cc96 | root | except ValueError: |
301 | 0325be55 | Sofia Papagiannaki | return False |
302 | 9839cc96 | root | else:
|
303 | ad0efdb3 | Ilias Tsitsimpis | return True |
304 | ad0efdb3 | Ilias Tsitsimpis | |
305 | 2715ade4 | Sofia Papagiannaki | |
306 | 27932481 | Sofia Papagiannaki | ##########################
|
307 | 27932481 | Sofia Papagiannaki | # USER CATALOG utilities #
|
308 | 27932481 | Sofia Papagiannaki | ##########################
|
309 | 27932481 | Sofia Papagiannaki | |
310 | 469d0997 | Georgios D. Tsoukalas | def retrieve_displayname(token, uuid, fail_silently=True): |
311 | f759041f | Ilias Tsitsimpis | astakos = AstakosClient(token, ASTAKOS_AUTH_URL, |
312 | f759041f | Ilias Tsitsimpis | retry=2, use_pool=True, |
313 | e3ff6830 | Georgios D. Tsoukalas | logger=logger) |
314 | e6fb591c | Ilias Tsitsimpis | try:
|
315 | f759041f | Ilias Tsitsimpis | displayname = astakos.get_username(uuid) |
316 | e6fb591c | Ilias Tsitsimpis | except NoUserName:
|
317 | e6fb591c | Ilias Tsitsimpis | if not fail_silently: |
318 | e6fb591c | Ilias Tsitsimpis | raise ItemNotExists(uuid)
|
319 | e6fb591c | Ilias Tsitsimpis | else:
|
320 | e6fb591c | Ilias Tsitsimpis | # just return the uuid
|
321 | e6fb591c | Ilias Tsitsimpis | return uuid
|
322 | 469d0997 | Georgios D. Tsoukalas | return displayname
|
323 | 32454501 | Sofia Papagiannaki | |
324 | ad0efdb3 | Ilias Tsitsimpis | |
325 | 469d0997 | Georgios D. Tsoukalas | def retrieve_displaynames(token, uuids, return_dict=False, fail_silently=True): |
326 | f759041f | Ilias Tsitsimpis | astakos = AstakosClient(token, ASTAKOS_AUTH_URL, |
327 | f759041f | Ilias Tsitsimpis | retry=2, use_pool=True, |
328 | e3ff6830 | Georgios D. Tsoukalas | logger=logger) |
329 | f759041f | Ilias Tsitsimpis | catalog = astakos.get_usernames(uuids) or {}
|
330 | 469d0997 | Georgios D. Tsoukalas | missing = list(set(uuids) - set(catalog)) |
331 | 469d0997 | Georgios D. Tsoukalas | if missing and not fail_silently: |
332 | 469d0997 | Georgios D. Tsoukalas | raise ItemNotExists('Unknown displaynames: %s' % ', '.join(missing)) |
333 | 469d0997 | Georgios D. Tsoukalas | return catalog if return_dict else [catalog.get(i) for i in uuids] |
334 | 88dd5c4d | Sofia Papagiannaki | |
335 | ad0efdb3 | Ilias Tsitsimpis | |
336 | 27932481 | Sofia Papagiannaki | def retrieve_uuid(token, displayname): |
337 | 890c2065 | Sofia Papagiannaki | if is_uuid(displayname):
|
338 | 890c2065 | Sofia Papagiannaki | return displayname
|
339 | 890c2065 | Sofia Papagiannaki | |
340 | f759041f | Ilias Tsitsimpis | astakos = AstakosClient(token, ASTAKOS_AUTH_URL, |
341 | f759041f | Ilias Tsitsimpis | retry=2, use_pool=True, |
342 | e3ff6830 | Georgios D. Tsoukalas | logger=logger) |
343 | e6fb591c | Ilias Tsitsimpis | try:
|
344 | f759041f | Ilias Tsitsimpis | uuid = astakos.get_uuid(displayname) |
345 | e6fb591c | Ilias Tsitsimpis | except NoUUID:
|
346 | 890c2065 | Sofia Papagiannaki | raise ItemNotExists(displayname)
|
347 | 890c2065 | Sofia Papagiannaki | return uuid
|
348 | 890c2065 | Sofia Papagiannaki | |
349 | ad0efdb3 | Ilias Tsitsimpis | |
350 | 469d0997 | Georgios D. Tsoukalas | def retrieve_uuids(token, displaynames, return_dict=False, fail_silently=True): |
351 | f759041f | Ilias Tsitsimpis | astakos = AstakosClient(token, ASTAKOS_AUTH_URL, |
352 | f759041f | Ilias Tsitsimpis | retry=2, use_pool=True, |
353 | e3ff6830 | Georgios D. Tsoukalas | logger=logger) |
354 | f759041f | Ilias Tsitsimpis | catalog = astakos.get_uuids(displaynames) or {}
|
355 | 469d0997 | Georgios D. Tsoukalas | missing = list(set(displaynames) - set(catalog)) |
356 | 469d0997 | Georgios D. Tsoukalas | if missing and not fail_silently: |
357 | 469d0997 | Georgios D. Tsoukalas | raise ItemNotExists('Unknown uuids: %s' % ', '.join(missing)) |
358 | 469d0997 | Georgios D. Tsoukalas | return catalog if return_dict else [catalog.get(i) for i in displaynames] |
359 | 890c2065 | Sofia Papagiannaki | |
360 | ad0efdb3 | Ilias Tsitsimpis | |
361 | 27932481 | Sofia Papagiannaki | def replace_permissions_displayname(token, holder): |
362 | 469d0997 | Georgios D. Tsoukalas | if holder == '*': |
363 | 469d0997 | Georgios D. Tsoukalas | return holder
|
364 | 32454501 | Sofia Papagiannaki | try:
|
365 | 32454501 | Sofia Papagiannaki | # check first for a group permission
|
366 | 4a9e3f32 | Sofia Papagiannaki | account, group = holder.split(':', 1) |
367 | 32454501 | Sofia Papagiannaki | except ValueError: |
368 | 469d0997 | Georgios D. Tsoukalas | return retrieve_uuid(token, holder)
|
369 | 32454501 | Sofia Papagiannaki | else:
|
370 | 469d0997 | Georgios D. Tsoukalas | return ':'.join([retrieve_uuid(token, account), group]) |
371 | 32454501 | Sofia Papagiannaki | |
372 | ad0efdb3 | Ilias Tsitsimpis | |
373 | 27932481 | Sofia Papagiannaki | def replace_permissions_uuid(token, holder): |
374 | 469d0997 | Georgios D. Tsoukalas | if holder == '*': |
375 | 469d0997 | Georgios D. Tsoukalas | return holder
|
376 | 32454501 | Sofia Papagiannaki | try:
|
377 | 32454501 | Sofia Papagiannaki | # check first for a group permission
|
378 | 4a9e3f32 | Sofia Papagiannaki | account, group = holder.split(':', 1) |
379 | 32454501 | Sofia Papagiannaki | except ValueError: |
380 | 469d0997 | Georgios D. Tsoukalas | return retrieve_displayname(token, holder)
|
381 | 32454501 | Sofia Papagiannaki | else:
|
382 | 469d0997 | Georgios D. Tsoukalas | return ':'.join([retrieve_displayname(token, account), group]) |
383 | 32454501 | Sofia Papagiannaki | |
384 | ad0efdb3 | Ilias Tsitsimpis | |
385 | ad0efdb3 | Ilias Tsitsimpis | def update_sharing_meta(request, permissions, v_account, |
386 | ad0efdb3 | Ilias Tsitsimpis | v_container, v_object, meta): |
387 | cca6c617 | Antony Chazapis | if permissions is None: |
388 | cca6c617 | Antony Chazapis | return
|
389 | 067cf1fc | Antony Chazapis | allowed, perm_path, perms = permissions |
390 | cca6c617 | Antony Chazapis | if len(perms) == 0: |
391 | cca6c617 | Antony Chazapis | return
|
392 | 32454501 | Sofia Papagiannaki | |
393 | 27932481 | Sofia Papagiannaki | # replace uuid with displayname
|
394 | 469d0997 | Georgios D. Tsoukalas | if TRANSLATE_UUIDS:
|
395 | 469d0997 | Georgios D. Tsoukalas | perms['read'] = [replace_permissions_uuid(
|
396 | ad0efdb3 | Ilias Tsitsimpis | getattr(request, 'token', None), x) |
397 | ad0efdb3 | Ilias Tsitsimpis | for x in perms.get('read', [])] |
398 | 469d0997 | Georgios D. Tsoukalas | perms['write'] = [replace_permissions_uuid(
|
399 | ad0efdb3 | Ilias Tsitsimpis | getattr(request, 'token', None), x) |
400 | ad0efdb3 | Ilias Tsitsimpis | for x in perms.get('write', [])] |
401 | 32454501 | Sofia Papagiannaki | |
402 | 3436eeb0 | Antony Chazapis | ret = [] |
403 | 32454501 | Sofia Papagiannaki | |
404 | cca6c617 | Antony Chazapis | r = ','.join(perms.get('read', [])) |
405 | 3436eeb0 | Antony Chazapis | if r:
|
406 | 3436eeb0 | Antony Chazapis | ret.append('read=' + r)
|
407 | cca6c617 | Antony Chazapis | w = ','.join(perms.get('write', [])) |
408 | 3436eeb0 | Antony Chazapis | if w:
|
409 | 3436eeb0 | Antony Chazapis | ret.append('write=' + w)
|
410 | cca6c617 | Antony Chazapis | meta['X-Object-Sharing'] = '; '.join(ret) |
411 | cca6c617 | Antony Chazapis | if '/'.join((v_account, v_container, v_object)) != perm_path: |
412 | cca6c617 | Antony Chazapis | meta['X-Object-Shared-By'] = perm_path
|
413 | 61efb530 | Antony Chazapis | if request.user_uniq != v_account:
|
414 | 067cf1fc | Antony Chazapis | meta['X-Object-Allowed-To'] = allowed
|
415 | 3436eeb0 | Antony Chazapis | |
416 | 2715ade4 | Sofia Papagiannaki | |
417 | e0f916bb | Antony Chazapis | def update_public_meta(public, meta): |
418 | e0f916bb | Antony Chazapis | if not public: |
419 | e0f916bb | Antony Chazapis | return
|
420 | a3fcee5b | Sofia Papagiannaki | meta['X-Object-Public'] = join_urls(
|
421 | cc1f91ad | Sofia Papagiannaki | BASE_HOST, reverse('pithos.api.public.public_demux', args=(public,)))
|
422 | e0f916bb | Antony Chazapis | |
423 | 2715ade4 | Sofia Papagiannaki | |
424 | b956618e | Antony Chazapis | def validate_modification_preconditions(request, meta): |
425 | 29148653 | Sofia Papagiannaki | """Check the modified timestamp conforms with the preconditions set."""
|
426 | 2715ade4 | Sofia Papagiannaki | |
427 | 22dab079 | Antony Chazapis | if 'modified' not in meta: |
428 | 2715ade4 | Sofia Papagiannaki | return # TODO: Always return? |
429 | 2715ade4 | Sofia Papagiannaki | |
430 | b956618e | Antony Chazapis | if_modified_since = request.META.get('HTTP_IF_MODIFIED_SINCE')
|
431 | b956618e | Antony Chazapis | if if_modified_since is not None: |
432 | b956618e | Antony Chazapis | if_modified_since = parse_http_date_safe(if_modified_since) |
433 | ad0efdb3 | Ilias Tsitsimpis | if (if_modified_since is not None |
434 | ad0efdb3 | Ilias Tsitsimpis | and int(meta['modified']) <= if_modified_since): |
435 | bd40abfa | Christos Stavrakakis | raise faults.NotModified('Resource has not been modified') |
436 | 2715ade4 | Sofia Papagiannaki | |
437 | b956618e | Antony Chazapis | if_unmodified_since = request.META.get('HTTP_IF_UNMODIFIED_SINCE')
|
438 | b956618e | Antony Chazapis | if if_unmodified_since is not None: |
439 | b956618e | Antony Chazapis | if_unmodified_since = parse_http_date_safe(if_unmodified_since) |
440 | ad0efdb3 | Ilias Tsitsimpis | if (if_unmodified_since is not None |
441 | ad0efdb3 | Ilias Tsitsimpis | and int(meta['modified']) > if_unmodified_since): |
442 | bd40abfa | Christos Stavrakakis | raise faults.PreconditionFailed('Resource has been modified') |
443 | b956618e | Antony Chazapis | |
444 | 2715ade4 | Sofia Papagiannaki | |
445 | 22dab079 | Antony Chazapis | def validate_matching_preconditions(request, meta): |
446 | 58a6c894 | Antony Chazapis | """Check that the ETag conforms with the preconditions set."""
|
447 | 2715ade4 | Sofia Papagiannaki | |
448 | 133e3fcf | Sofia Papagiannaki | etag = meta['hash'] if not UPDATE_MD5 else meta['checksum'] |
449 | 33b4e4a6 | Antony Chazapis | if not etag: |
450 | 33b4e4a6 | Antony Chazapis | etag = None
|
451 | 2715ade4 | Sofia Papagiannaki | |
452 | 22dab079 | Antony Chazapis | if_match = request.META.get('HTTP_IF_MATCH')
|
453 | a8326bef | Antony Chazapis | if if_match is not None: |
454 | 4a1c29ea | Antony Chazapis | if etag is None: |
455 | bd40abfa | Christos Stavrakakis | raise faults.PreconditionFailed('Resource does not exist') |
456 | ad0efdb3 | Ilias Tsitsimpis | if (if_match != '*' |
457 | ad0efdb3 | Ilias Tsitsimpis | and etag not in [x.lower() for x in parse_etags(if_match)]): |
458 | bd40abfa | Christos Stavrakakis | raise faults.PreconditionFailed('Resource ETag does not match') |
459 | 2715ade4 | Sofia Papagiannaki | |
460 | 22dab079 | Antony Chazapis | if_none_match = request.META.get('HTTP_IF_NONE_MATCH')
|
461 | 22dab079 | Antony Chazapis | if if_none_match is not None: |
462 | a8326bef | Antony Chazapis | # TODO: If this passes, must ignore If-Modified-Since header.
|
463 | 4a1c29ea | Antony Chazapis | if etag is not None: |
464 | 29148653 | Sofia Papagiannaki | if (if_none_match == '*' or etag in [x.lower() for x in |
465 | 29148653 | Sofia Papagiannaki | parse_etags(if_none_match)]): |
466 | a8326bef | Antony Chazapis | # TODO: Continue if an If-Modified-Since header is present.
|
467 | a8326bef | Antony Chazapis | if request.method in ('HEAD', 'GET'): |
468 | bd40abfa | Christos Stavrakakis | raise faults.NotModified('Resource ETag matches') |
469 | ad0efdb3 | Ilias Tsitsimpis | raise faults.PreconditionFailed(
|
470 | ad0efdb3 | Ilias Tsitsimpis | 'Resource exists or ETag matches')
|
471 | 22dab079 | Antony Chazapis | |
472 | 2715ade4 | Sofia Papagiannaki | |
473 | 83dd59c5 | Antony Chazapis | def split_container_object_string(s): |
474 | 6d817842 | Antony Chazapis | if not len(s) > 0 or s[0] != '/': |
475 | 6d817842 | Antony Chazapis | raise ValueError |
476 | 6d817842 | Antony Chazapis | s = s[1:]
|
477 | 8cb45c13 | Antony Chazapis | pos = s.find('/')
|
478 | 22d7b01e | Antony Chazapis | if pos == -1 or pos == len(s) - 1: |
479 | 83dd59c5 | Antony Chazapis | raise ValueError |
480 | 8cb45c13 | Antony Chazapis | return s[:pos], s[(pos + 1):] |
481 | 83dd59c5 | Antony Chazapis | |
482 | 2715ade4 | Sofia Papagiannaki | |
483 | ad0efdb3 | Ilias Tsitsimpis | def copy_or_move_object(request, src_account, src_container, src_name, |
484 | ad0efdb3 | Ilias Tsitsimpis | dest_account, dest_container, dest_name, |
485 | 0c6ab9df | Sofia Papagiannaki | move=False, delimiter=None, listing_limit=None): |
486 | 58a6c894 | Antony Chazapis | """Copy or move an object."""
|
487 | 2715ade4 | Sofia Papagiannaki | |
488 | 53cff70c | Antony Chazapis | if 'ignore_content_type' in request.GET and 'CONTENT_TYPE' in request.META: |
489 | 53cff70c | Antony Chazapis | del(request.META['CONTENT_TYPE']) |
490 | 66ce2ca5 | Antony Chazapis | content_type, meta, permissions, public = get_object_headers(request) |
491 | 79bb41b7 | Antony Chazapis | src_version = request.META.get('HTTP_X_SOURCE_VERSION')
|
492 | b956618e | Antony Chazapis | try:
|
493 | b956618e | Antony Chazapis | if move:
|
494 | 2715ade4 | Sofia Papagiannaki | version_id = request.backend.move_object( |
495 | 2715ade4 | Sofia Papagiannaki | request.user_uniq, src_account, src_container, src_name, |
496 | 2715ade4 | Sofia Papagiannaki | dest_account, dest_container, dest_name, |
497 | 0c6ab9df | Sofia Papagiannaki | content_type, 'pithos', meta, False, permissions, delimiter, |
498 | 0c6ab9df | Sofia Papagiannaki | listing_limit=listing_limit) |
499 | b956618e | Antony Chazapis | else:
|
500 | 2715ade4 | Sofia Papagiannaki | version_id = request.backend.copy_object( |
501 | 2715ade4 | Sofia Papagiannaki | request.user_uniq, src_account, src_container, src_name, |
502 | 2715ade4 | Sofia Papagiannaki | dest_account, dest_container, dest_name, |
503 | ad0efdb3 | Ilias Tsitsimpis | content_type, 'pithos', meta, False, permissions, |
504 | 0c6ab9df | Sofia Papagiannaki | src_version, delimiter, listing_limit=listing_limit) |
505 | cca6c617 | Antony Chazapis | except NotAllowedError:
|
506 | bd40abfa | Christos Stavrakakis | raise faults.Forbidden('Not allowed') |
507 | 7efc9f86 | Sofia Papagiannaki | except (ItemNotExists, VersionNotExists):
|
508 | bd40abfa | Christos Stavrakakis | raise faults.ItemNotFound('Container or object does not exist') |
509 | 3436eeb0 | Antony Chazapis | except ValueError: |
510 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Invalid sharing header') |
511 | dfa2d4ba | Sofia Papagiannaki | except QuotaError, e:
|
512 | bd40abfa | Christos Stavrakakis | raise faults.RequestEntityTooLarge('Quota error: %s' % e) |
513 | e0f916bb | Antony Chazapis | if public is not None: |
514 | e0f916bb | Antony Chazapis | try:
|
515 | ad0efdb3 | Ilias Tsitsimpis | request.backend.update_object_public( |
516 | ad0efdb3 | Ilias Tsitsimpis | request.user_uniq, dest_account, |
517 | ad0efdb3 | Ilias Tsitsimpis | dest_container, dest_name, public) |
518 | e0f916bb | Antony Chazapis | except NotAllowedError:
|
519 | bd40abfa | Christos Stavrakakis | raise faults.Forbidden('Not allowed') |
520 | 7efc9f86 | Sofia Papagiannaki | except ItemNotExists:
|
521 | bd40abfa | Christos Stavrakakis | raise faults.ItemNotFound('Object does not exist') |
522 | 7dd293a0 | Antony Chazapis | return version_id
|
523 | b956618e | Antony Chazapis | |
524 | 2715ade4 | Sofia Papagiannaki | |
525 | 1495b972 | Antony Chazapis | def get_int_parameter(p): |
526 | 83dd59c5 | Antony Chazapis | if p is not None: |
527 | 58a6c894 | Antony Chazapis | try:
|
528 | 83dd59c5 | Antony Chazapis | p = int(p)
|
529 | 58a6c894 | Antony Chazapis | except ValueError: |
530 | 58a6c894 | Antony Chazapis | return None |
531 | 83dd59c5 | Antony Chazapis | if p < 0: |
532 | 58a6c894 | Antony Chazapis | return None |
533 | 83dd59c5 | Antony Chazapis | return p
|
534 | 58a6c894 | Antony Chazapis | |
535 | 2715ade4 | Sofia Papagiannaki | |
536 | 22dab079 | Antony Chazapis | def get_content_length(request): |
537 | 1495b972 | Antony Chazapis | content_length = get_int_parameter(request.META.get('CONTENT_LENGTH'))
|
538 | 1495b972 | Antony Chazapis | if content_length is None: |
539 | bd40abfa | Christos Stavrakakis | raise faults.LengthRequired('Missing or invalid Content-Length header') |
540 | 22dab079 | Antony Chazapis | return content_length
|
541 | 22dab079 | Antony Chazapis | |
542 | 2715ade4 | Sofia Papagiannaki | |
543 | 22dab079 | Antony Chazapis | def get_range(request, size): |
544 | 58a6c894 | Antony Chazapis | """Parse a Range header from the request.
|
545 | 2715ade4 | Sofia Papagiannaki |
|
546 | 22dab079 | Antony Chazapis | Either returns None, when the header is not existent or should be ignored,
|
547 | 22dab079 | Antony Chazapis | or a list of (offset, length) tuples - should be further checked.
|
548 | b956618e | Antony Chazapis | """
|
549 | 2715ade4 | Sofia Papagiannaki | |
550 | 22dab079 | Antony Chazapis | ranges = request.META.get('HTTP_RANGE', '').replace(' ', '') |
551 | 22dab079 | Antony Chazapis | if not ranges.startswith('bytes='): |
552 | b956618e | Antony Chazapis | return None |
553 | 2715ade4 | Sofia Papagiannaki | |
554 | 22dab079 | Antony Chazapis | ret = [] |
555 | 22dab079 | Antony Chazapis | for r in (x.strip() for x in ranges[6:].split(',')): |
556 | 22dab079 | Antony Chazapis | p = re.compile('^(?P<offset>\d*)-(?P<upto>\d*)$')
|
557 | 22dab079 | Antony Chazapis | m = p.match(r) |
558 | 22dab079 | Antony Chazapis | if not m: |
559 | 22dab079 | Antony Chazapis | return None |
560 | 22dab079 | Antony Chazapis | offset = m.group('offset')
|
561 | 22dab079 | Antony Chazapis | upto = m.group('upto')
|
562 | 22dab079 | Antony Chazapis | if offset == '' and upto == '': |
563 | b956618e | Antony Chazapis | return None |
564 | 2715ade4 | Sofia Papagiannaki | |
565 | 22dab079 | Antony Chazapis | if offset != '': |
566 | 22dab079 | Antony Chazapis | offset = int(offset)
|
567 | 22dab079 | Antony Chazapis | if upto != '': |
568 | b956618e | Antony Chazapis | upto = int(upto)
|
569 | 22dab079 | Antony Chazapis | if offset > upto:
|
570 | 22dab079 | Antony Chazapis | return None |
571 | 22dab079 | Antony Chazapis | ret.append((offset, upto - offset + 1))
|
572 | 22dab079 | Antony Chazapis | else:
|
573 | 22dab079 | Antony Chazapis | ret.append((offset, size - offset)) |
574 | b956618e | Antony Chazapis | else:
|
575 | 22dab079 | Antony Chazapis | length = int(upto)
|
576 | 22dab079 | Antony Chazapis | ret.append((size - length, length)) |
577 | 2715ade4 | Sofia Papagiannaki | |
578 | 22dab079 | Antony Chazapis | return ret
|
579 | 22dab079 | Antony Chazapis | |
580 | 2715ade4 | Sofia Papagiannaki | |
581 | 22dab079 | Antony Chazapis | def get_content_range(request): |
582 | 58a6c894 | Antony Chazapis | """Parse a Content-Range header from the request.
|
583 | 2715ade4 | Sofia Papagiannaki |
|
584 | 22dab079 | Antony Chazapis | Either returns None, when the header is not existent or should be ignored,
|
585 | 22dab079 | Antony Chazapis | or an (offset, length, total) tuple - check as length, total may be None.
|
586 | 22dab079 | Antony Chazapis | Returns (None, None, None) if the provided range is '*/*'.
|
587 | 22dab079 | Antony Chazapis | """
|
588 | 2715ade4 | Sofia Papagiannaki | |
589 | 22dab079 | Antony Chazapis | ranges = request.META.get('HTTP_CONTENT_RANGE', '') |
590 | 22dab079 | Antony Chazapis | if not ranges: |
591 | 22dab079 | Antony Chazapis | return None |
592 | 2715ade4 | Sofia Papagiannaki | |
593 | 22dab079 | Antony Chazapis | p = re.compile('^bytes (?P<offset>\d+)-(?P<upto>\d*)/(?P<total>(\d+|\*))$')
|
594 | 22dab079 | Antony Chazapis | m = p.match(ranges) |
595 | 22dab079 | Antony Chazapis | if not m: |
596 | 22dab079 | Antony Chazapis | if ranges == 'bytes */*': |
597 | 22dab079 | Antony Chazapis | return (None, None, None) |
598 | 22dab079 | Antony Chazapis | return None |
599 | 22dab079 | Antony Chazapis | offset = int(m.group('offset')) |
600 | 22dab079 | Antony Chazapis | upto = m.group('upto')
|
601 | 22dab079 | Antony Chazapis | total = m.group('total')
|
602 | 22dab079 | Antony Chazapis | if upto != '': |
603 | 22dab079 | Antony Chazapis | upto = int(upto)
|
604 | b956618e | Antony Chazapis | else:
|
605 | 22dab079 | Antony Chazapis | upto = None
|
606 | 22dab079 | Antony Chazapis | if total != '*': |
607 | 22dab079 | Antony Chazapis | total = int(total)
|
608 | 22dab079 | Antony Chazapis | else:
|
609 | 22dab079 | Antony Chazapis | total = None
|
610 | 70e526a0 | Antony Chazapis | if (upto is not None and offset > upto) or \ |
611 | 70e526a0 | Antony Chazapis | (total is not None and offset >= total) or \ |
612 | 2715ade4 | Sofia Papagiannaki | (total is not None and upto is not None and upto >= total): |
613 | 22dab079 | Antony Chazapis | return None |
614 | 2715ade4 | Sofia Papagiannaki | |
615 | 70e526a0 | Antony Chazapis | if upto is None: |
616 | 22dab079 | Antony Chazapis | length = None
|
617 | 22dab079 | Antony Chazapis | else:
|
618 | 22dab079 | Antony Chazapis | length = upto - offset + 1
|
619 | 22dab079 | Antony Chazapis | return (offset, length, total)
|
620 | b956618e | Antony Chazapis | |
621 | 2715ade4 | Sofia Papagiannaki | |
622 | 3436eeb0 | Antony Chazapis | def get_sharing(request): |
623 | 3436eeb0 | Antony Chazapis | """Parse an X-Object-Sharing header from the request.
|
624 | 2715ade4 | Sofia Papagiannaki |
|
625 | 3436eeb0 | Antony Chazapis | Raises BadRequest on error.
|
626 | 3436eeb0 | Antony Chazapis | """
|
627 | 2715ade4 | Sofia Papagiannaki | |
628 | 3436eeb0 | Antony Chazapis | permissions = request.META.get('HTTP_X_OBJECT_SHARING')
|
629 | cca6c617 | Antony Chazapis | if permissions is None: |
630 | 3436eeb0 | Antony Chazapis | return None |
631 | 2715ade4 | Sofia Papagiannaki | |
632 | 0a7f1671 | Antony Chazapis | # TODO: Document or remove '~' replacing.
|
633 | 0a7f1671 | Antony Chazapis | permissions = permissions.replace('~', '') |
634 | 2715ade4 | Sofia Papagiannaki | |
635 | 3436eeb0 | Antony Chazapis | ret = {} |
636 | cca6c617 | Antony Chazapis | permissions = permissions.replace(' ', '') |
637 | cca6c617 | Antony Chazapis | if permissions == '': |
638 | cca6c617 | Antony Chazapis | return ret
|
639 | cca6c617 | Antony Chazapis | for perm in (x for x in permissions.split(';')): |
640 | cca6c617 | Antony Chazapis | if perm.startswith('read='): |
641 | 2715ade4 | Sofia Papagiannaki | ret['read'] = list(set( |
642 | 2715ade4 | Sofia Papagiannaki | [v.replace(' ', '').lower() for v in perm[5:].split(',')])) |
643 | 02c0c3fa | Antony Chazapis | if '' in ret['read']: |
644 | 02c0c3fa | Antony Chazapis | ret['read'].remove('') |
645 | e8886082 | Antony Chazapis | if '*' in ret['read']: |
646 | e8886082 | Antony Chazapis | ret['read'] = ['*'] |
647 | 3436eeb0 | Antony Chazapis | if len(ret['read']) == 0: |
648 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest(
|
649 | 32454501 | Sofia Papagiannaki | 'Bad X-Object-Sharing header value: invalid length')
|
650 | 3436eeb0 | Antony Chazapis | elif perm.startswith('write='): |
651 | 2715ade4 | Sofia Papagiannaki | ret['write'] = list(set( |
652 | 2715ade4 | Sofia Papagiannaki | [v.replace(' ', '').lower() for v in perm[6:].split(',')])) |
653 | 02c0c3fa | Antony Chazapis | if '' in ret['write']: |
654 | 02c0c3fa | Antony Chazapis | ret['write'].remove('') |
655 | e8886082 | Antony Chazapis | if '*' in ret['write']: |
656 | e8886082 | Antony Chazapis | ret['write'] = ['*'] |
657 | 3436eeb0 | Antony Chazapis | if len(ret['write']) == 0: |
658 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest(
|
659 | 32454501 | Sofia Papagiannaki | 'Bad X-Object-Sharing header value: invalid length')
|
660 | 3436eeb0 | Antony Chazapis | else:
|
661 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest(
|
662 | 32454501 | Sofia Papagiannaki | 'Bad X-Object-Sharing header value: missing prefix')
|
663 | 32454501 | Sofia Papagiannaki | |
664 | 890c2065 | Sofia Papagiannaki | # replace displayname with uuid
|
665 | 469d0997 | Georgios D. Tsoukalas | if TRANSLATE_UUIDS:
|
666 | 469d0997 | Georgios D. Tsoukalas | try:
|
667 | 469d0997 | Georgios D. Tsoukalas | ret['read'] = [replace_permissions_displayname(
|
668 | ad0efdb3 | Ilias Tsitsimpis | getattr(request, 'token', None), x) |
669 | ad0efdb3 | Ilias Tsitsimpis | for x in ret.get('read', [])] |
670 | 469d0997 | Georgios D. Tsoukalas | ret['write'] = [replace_permissions_displayname(
|
671 | ad0efdb3 | Ilias Tsitsimpis | getattr(request, 'token', None), x) |
672 | ad0efdb3 | Ilias Tsitsimpis | for x in ret.get('write', [])] |
673 | 469d0997 | Georgios D. Tsoukalas | except ItemNotExists, e:
|
674 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest(
|
675 | 469d0997 | Georgios D. Tsoukalas | 'Bad X-Object-Sharing header value: unknown account: %s' % e)
|
676 | 2715ade4 | Sofia Papagiannaki | |
677 | 21a8a6ff | Antony Chazapis | # Keep duplicates only in write list.
|
678 | 2715ade4 | Sofia Papagiannaki | dups = [x for x in ret.get( |
679 | 2715ade4 | Sofia Papagiannaki | 'read', []) if x in ret.get('write', []) and x != '*'] |
680 | 21a8a6ff | Antony Chazapis | if dups:
|
681 | 21a8a6ff | Antony Chazapis | for x in dups: |
682 | 21a8a6ff | Antony Chazapis | ret['read'].remove(x)
|
683 | 21a8a6ff | Antony Chazapis | if len(ret['read']) == 0: |
684 | 21a8a6ff | Antony Chazapis | del(ret['read']) |
685 | 2715ade4 | Sofia Papagiannaki | |
686 | 3436eeb0 | Antony Chazapis | return ret
|
687 | 3436eeb0 | Antony Chazapis | |
688 | 2715ade4 | Sofia Papagiannaki | |
689 | 3ab38c43 | Antony Chazapis | def get_public(request): |
690 | 3ab38c43 | Antony Chazapis | """Parse an X-Object-Public header from the request.
|
691 | 2715ade4 | Sofia Papagiannaki |
|
692 | 3ab38c43 | Antony Chazapis | Raises BadRequest on error.
|
693 | 3ab38c43 | Antony Chazapis | """
|
694 | 2715ade4 | Sofia Papagiannaki | |
695 | 3ab38c43 | Antony Chazapis | public = request.META.get('HTTP_X_OBJECT_PUBLIC')
|
696 | 3ab38c43 | Antony Chazapis | if public is None: |
697 | 3ab38c43 | Antony Chazapis | return None |
698 | 2715ade4 | Sofia Papagiannaki | |
699 | 3ab38c43 | Antony Chazapis | public = public.replace(' ', '').lower() |
700 | 3ab38c43 | Antony Chazapis | if public == 'true': |
701 | 3ab38c43 | Antony Chazapis | return True |
702 | 3ab38c43 | Antony Chazapis | elif public == 'false' or public == '': |
703 | 3ab38c43 | Antony Chazapis | return False |
704 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Bad X-Object-Public header value') |
705 | 3ab38c43 | Antony Chazapis | |
706 | 2715ade4 | Sofia Papagiannaki | |
707 | b956618e | Antony Chazapis | def raw_input_socket(request): |
708 | 58a6c894 | Antony Chazapis | """Return the socket for reading the rest of the request."""
|
709 | 2715ade4 | Sofia Papagiannaki | |
710 | b956618e | Antony Chazapis | server_software = request.META.get('SERVER_SOFTWARE')
|
711 | fc1b2a75 | Antony Chazapis | if server_software and server_software.startswith('mod_python'): |
712 | b956618e | Antony Chazapis | return request._req
|
713 | fc1b2a75 | Antony Chazapis | if 'wsgi.input' in request.environ: |
714 | fc1b2a75 | Antony Chazapis | return request.environ['wsgi.input'] |
715 | 08de868d | Antony Chazapis | raise NotImplemented('Unknown server software') |
716 | b956618e | Antony Chazapis | |
717 | 2715ade4 | Sofia Papagiannaki | MAX_UPLOAD_SIZE = 5 * (1024 * 1024 * 1024) # 5GB |
718 | 2715ade4 | Sofia Papagiannaki | |
719 | b956618e | Antony Chazapis | |
720 | c032f34d | Antony Chazapis | def socket_read_iterator(request, length=0, blocksize=4096): |
721 | 29148653 | Sofia Papagiannaki | """Return maximum of blocksize data read from the socket in each iteration
|
722 | 2715ade4 | Sofia Papagiannaki |
|
723 | 22dab079 | Antony Chazapis | Read up to 'length'. If 'length' is negative, will attempt a chunked read.
|
724 | b956618e | Antony Chazapis | The maximum ammount of data read is controlled by MAX_UPLOAD_SIZE.
|
725 | b956618e | Antony Chazapis | """
|
726 | 2715ade4 | Sofia Papagiannaki | |
727 | c032f34d | Antony Chazapis | sock = raw_input_socket(request) |
728 | 2715ade4 | Sofia Papagiannaki | if length < 0: # Chunked transfers |
729 | c032f34d | Antony Chazapis | # Small version (server does the dechunking).
|
730 | ad0efdb3 | Ilias Tsitsimpis | if (request.environ.get('mod_wsgi.input_chunked', None) |
731 | ad0efdb3 | Ilias Tsitsimpis | or request.META['SERVER_SOFTWARE'].startswith('gunicorn')): |
732 | c032f34d | Antony Chazapis | while length < MAX_UPLOAD_SIZE:
|
733 | c032f34d | Antony Chazapis | data = sock.read(blocksize) |
734 | c032f34d | Antony Chazapis | if data == '': |
735 | c032f34d | Antony Chazapis | return
|
736 | c032f34d | Antony Chazapis | yield data
|
737 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Maximum size is reached') |
738 | 2715ade4 | Sofia Papagiannaki | |
739 | c032f34d | Antony Chazapis | # Long version (do the dechunking).
|
740 | 22dab079 | Antony Chazapis | data = ''
|
741 | b956618e | Antony Chazapis | while length < MAX_UPLOAD_SIZE:
|
742 | 22dab079 | Antony Chazapis | # Get chunk size.
|
743 | 22dab079 | Antony Chazapis | if hasattr(sock, 'readline'): |
744 | 22dab079 | Antony Chazapis | chunk_length = sock.readline() |
745 | 22dab079 | Antony Chazapis | else:
|
746 | 22dab079 | Antony Chazapis | chunk_length = ''
|
747 | 22dab079 | Antony Chazapis | while chunk_length[-1:] != '\n': |
748 | 22dab079 | Antony Chazapis | chunk_length += sock.read(1)
|
749 | 22dab079 | Antony Chazapis | chunk_length.strip() |
750 | b956618e | Antony Chazapis | pos = chunk_length.find(';')
|
751 | b956618e | Antony Chazapis | if pos >= 0: |
752 | b956618e | Antony Chazapis | chunk_length = chunk_length[:pos] |
753 | b956618e | Antony Chazapis | try:
|
754 | b956618e | Antony Chazapis | chunk_length = int(chunk_length, 16) |
755 | bd40abfa | Christos Stavrakakis | except Exception: |
756 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Bad chunk size') |
757 | 2715ade4 | Sofia Papagiannaki | # TODO: Change to something more appropriate.
|
758 | 22dab079 | Antony Chazapis | # Check if done.
|
759 | b956618e | Antony Chazapis | if chunk_length == 0: |
760 | 22dab079 | Antony Chazapis | if len(data) > 0: |
761 | 22dab079 | Antony Chazapis | yield data
|
762 | b956618e | Antony Chazapis | return
|
763 | 22dab079 | Antony Chazapis | # Get the actual data.
|
764 | b956618e | Antony Chazapis | while chunk_length > 0: |
765 | 22dab079 | Antony Chazapis | chunk = sock.read(min(chunk_length, blocksize))
|
766 | 22dab079 | Antony Chazapis | chunk_length -= len(chunk)
|
767 | 623a0cf4 | Sofia Papagiannaki | if length > 0: |
768 | 623a0cf4 | Sofia Papagiannaki | length += len(chunk)
|
769 | 22dab079 | Antony Chazapis | data += chunk |
770 | 22dab079 | Antony Chazapis | if len(data) >= blocksize: |
771 | 22dab079 | Antony Chazapis | ret = data[:blocksize] |
772 | 22dab079 | Antony Chazapis | data = data[blocksize:] |
773 | 22dab079 | Antony Chazapis | yield ret
|
774 | 2715ade4 | Sofia Papagiannaki | sock.read(2) # CRLF |
775 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Maximum size is reached') |
776 | b956618e | Antony Chazapis | else:
|
777 | b956618e | Antony Chazapis | if length > MAX_UPLOAD_SIZE:
|
778 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Maximum size is reached') |
779 | b956618e | Antony Chazapis | while length > 0: |
780 | b956618e | Antony Chazapis | data = sock.read(min(length, blocksize))
|
781 | 7b25e082 | Antony Chazapis | if not data: |
782 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest()
|
783 | b956618e | Antony Chazapis | length -= len(data)
|
784 | b956618e | Antony Chazapis | yield data
|
785 | b956618e | Antony Chazapis | |
786 | 2715ade4 | Sofia Papagiannaki | |
787 | 817890f2 | Antony Chazapis | class SaveToBackendHandler(FileUploadHandler): |
788 | 817890f2 | Antony Chazapis | """Handle a file from an HTML form the django way."""
|
789 | 2715ade4 | Sofia Papagiannaki | |
790 | 817890f2 | Antony Chazapis | def __init__(self, request=None): |
791 | 817890f2 | Antony Chazapis | super(SaveToBackendHandler, self).__init__(request) |
792 | 817890f2 | Antony Chazapis | self.backend = request.backend
|
793 | 2715ade4 | Sofia Papagiannaki | |
794 | 817890f2 | Antony Chazapis | def put_data(self, length): |
795 | 817890f2 | Antony Chazapis | if len(self.data) >= length: |
796 | 817890f2 | Antony Chazapis | block = self.data[:length]
|
797 | 817890f2 | Antony Chazapis | self.file.hashmap.append(self.backend.put_block(block)) |
798 | 133e3fcf | Sofia Papagiannaki | self.checksum_compute.update(block)
|
799 | 817890f2 | Antony Chazapis | self.data = self.data[length:] |
800 | 2715ade4 | Sofia Papagiannaki | |
801 | ad0efdb3 | Ilias Tsitsimpis | def new_file(self, field_name, file_name, content_type, |
802 | ad0efdb3 | Ilias Tsitsimpis | content_length, charset=None):
|
803 | 133e3fcf | Sofia Papagiannaki | self.checksum_compute = NoChecksum() if not UPDATE_MD5 else Checksum() |
804 | 817890f2 | Antony Chazapis | self.data = '' |
805 | 2715ade4 | Sofia Papagiannaki | self.file = UploadedFile(
|
806 | 2715ade4 | Sofia Papagiannaki | name=file_name, content_type=content_type, charset=charset) |
807 | 817890f2 | Antony Chazapis | self.file.size = 0 |
808 | 817890f2 | Antony Chazapis | self.file.hashmap = []
|
809 | 2715ade4 | Sofia Papagiannaki | |
810 | 817890f2 | Antony Chazapis | def receive_data_chunk(self, raw_data, start): |
811 | 817890f2 | Antony Chazapis | self.data += raw_data
|
812 | 817890f2 | Antony Chazapis | self.file.size += len(raw_data) |
813 | 817890f2 | Antony Chazapis | self.put_data(self.request.backend.block_size) |
814 | 817890f2 | Antony Chazapis | return None |
815 | 2715ade4 | Sofia Papagiannaki | |
816 | 817890f2 | Antony Chazapis | def file_complete(self, file_size): |
817 | 817890f2 | Antony Chazapis | l = len(self.data) |
818 | 817890f2 | Antony Chazapis | if l > 0: |
819 | 817890f2 | Antony Chazapis | self.put_data(l)
|
820 | 133e3fcf | Sofia Papagiannaki | self.file.etag = self.checksum_compute.hexdigest() |
821 | 817890f2 | Antony Chazapis | return self.file |
822 | 817890f2 | Antony Chazapis | |
823 | 2715ade4 | Sofia Papagiannaki | |
824 | 22dab079 | Antony Chazapis | class ObjectWrapper(object): |
825 | 58a6c894 | Antony Chazapis | """Return the object's data block-per-block in each iteration.
|
826 | 2715ade4 | Sofia Papagiannaki |
|
827 | ad0efdb3 | Ilias Tsitsimpis | Read from the object using the offset and length provided
|
828 | ad0efdb3 | Ilias Tsitsimpis | in each entry of the range list.
|
829 | 22dab079 | Antony Chazapis | """
|
830 | 2715ade4 | Sofia Papagiannaki | |
831 | 39593b2b | Giorgos Verigakis | def __init__(self, backend, ranges, sizes, hashmaps, boundary): |
832 | 39593b2b | Giorgos Verigakis | self.backend = backend
|
833 | 22dab079 | Antony Chazapis | self.ranges = ranges
|
834 | 8cb45c13 | Antony Chazapis | self.sizes = sizes
|
835 | 8cb45c13 | Antony Chazapis | self.hashmaps = hashmaps
|
836 | 22dab079 | Antony Chazapis | self.boundary = boundary
|
837 | 8cb45c13 | Antony Chazapis | self.size = sum(self.sizes) |
838 | 2715ade4 | Sofia Papagiannaki | |
839 | 8cb45c13 | Antony Chazapis | self.file_index = 0 |
840 | 8cb45c13 | Antony Chazapis | self.block_index = 0 |
841 | 8cb45c13 | Antony Chazapis | self.block_hash = -1 |
842 | 22dab079 | Antony Chazapis | self.block = '' |
843 | 2715ade4 | Sofia Papagiannaki | |
844 | 22dab079 | Antony Chazapis | self.range_index = -1 |
845 | 22dab079 | Antony Chazapis | self.offset, self.length = self.ranges[0] |
846 | 2715ade4 | Sofia Papagiannaki | |
847 | 22dab079 | Antony Chazapis | def __iter__(self): |
848 | 22dab079 | Antony Chazapis | return self |
849 | 2715ade4 | Sofia Papagiannaki | |
850 | 22dab079 | Antony Chazapis | def part_iterator(self): |
851 | 22dab079 | Antony Chazapis | if self.length > 0: |
852 | 8cb45c13 | Antony Chazapis | # Get the file for the current offset.
|
853 | 8cb45c13 | Antony Chazapis | file_size = self.sizes[self.file_index] |
854 | 8cb45c13 | Antony Chazapis | while self.offset >= file_size: |
855 | 8cb45c13 | Antony Chazapis | self.offset -= file_size
|
856 | 8cb45c13 | Antony Chazapis | self.file_index += 1 |
857 | 8cb45c13 | Antony Chazapis | file_size = self.sizes[self.file_index] |
858 | 2715ade4 | Sofia Papagiannaki | |
859 | 8cb45c13 | Antony Chazapis | # Get the block for the current position.
|
860 | 39593b2b | Giorgos Verigakis | self.block_index = int(self.offset / self.backend.block_size) |
861 | ad0efdb3 | Ilias Tsitsimpis | if self.block_hash != \ |
862 | ad0efdb3 | Ilias Tsitsimpis | self.hashmaps[self.file_index][self.block_index]: |
863 | 2715ade4 | Sofia Papagiannaki | self.block_hash = self.hashmaps[ |
864 | 2715ade4 | Sofia Papagiannaki | self.file_index][self.block_index] |
865 | 22dab079 | Antony Chazapis | try:
|
866 | 39593b2b | Giorgos Verigakis | self.block = self.backend.get_block(self.block_hash) |
867 | 7efc9f86 | Sofia Papagiannaki | except ItemNotExists:
|
868 | bd40abfa | Christos Stavrakakis | raise faults.ItemNotFound('Block does not exist') |
869 | 2715ade4 | Sofia Papagiannaki | |
870 | 22dab079 | Antony Chazapis | # Get the data from the block.
|
871 | 39593b2b | Giorgos Verigakis | bo = self.offset % self.backend.block_size |
872 | c9865fe1 | Antony Chazapis | bs = self.backend.block_size
|
873 | 45cf0bc8 | Antony Chazapis | if (self.block_index == len(self.hashmaps[self.file_index]) - 1 and |
874 | 2715ade4 | Sofia Papagiannaki | self.sizes[self.file_index] % self.backend.block_size): |
875 | c9865fe1 | Antony Chazapis | bs = self.sizes[self.file_index] % self.backend.block_size |
876 | c9865fe1 | Antony Chazapis | bl = min(self.length, bs - bo) |
877 | 22dab079 | Antony Chazapis | data = self.block[bo:bo + bl]
|
878 | 22dab079 | Antony Chazapis | self.offset += bl
|
879 | 22dab079 | Antony Chazapis | self.length -= bl
|
880 | 22dab079 | Antony Chazapis | return data
|
881 | 22dab079 | Antony Chazapis | else:
|
882 | 22dab079 | Antony Chazapis | raise StopIteration |
883 | 2715ade4 | Sofia Papagiannaki | |
884 | 22dab079 | Antony Chazapis | def next(self): |
885 | 22dab079 | Antony Chazapis | if len(self.ranges) == 1: |
886 | 22dab079 | Antony Chazapis | return self.part_iterator() |
887 | 22dab079 | Antony Chazapis | if self.range_index == len(self.ranges): |
888 | 22dab079 | Antony Chazapis | raise StopIteration |
889 | 22dab079 | Antony Chazapis | try:
|
890 | 22dab079 | Antony Chazapis | if self.range_index == -1: |
891 | 22dab079 | Antony Chazapis | raise StopIteration |
892 | 22dab079 | Antony Chazapis | return self.part_iterator() |
893 | 22dab079 | Antony Chazapis | except StopIteration: |
894 | 22dab079 | Antony Chazapis | self.range_index += 1 |
895 | 22dab079 | Antony Chazapis | out = [] |
896 | 22dab079 | Antony Chazapis | if self.range_index < len(self.ranges): |
897 | 22dab079 | Antony Chazapis | # Part header.
|
898 | 22dab079 | Antony Chazapis | self.offset, self.length = self.ranges[self.range_index] |
899 | 8cb45c13 | Antony Chazapis | self.file_index = 0 |
900 | 22dab079 | Antony Chazapis | if self.range_index > 0: |
901 | 22dab079 | Antony Chazapis | out.append('')
|
902 | 22dab079 | Antony Chazapis | out.append('--' + self.boundary) |
903 | 2715ade4 | Sofia Papagiannaki | out.append('Content-Range: bytes %d-%d/%d' % (
|
904 | 2715ade4 | Sofia Papagiannaki | self.offset, self.offset + self.length - 1, self.size)) |
905 | 22dab079 | Antony Chazapis | out.append('Content-Transfer-Encoding: binary')
|
906 | 22dab079 | Antony Chazapis | out.append('')
|
907 | 22dab079 | Antony Chazapis | out.append('')
|
908 | 22dab079 | Antony Chazapis | return '\r\n'.join(out) |
909 | 22dab079 | Antony Chazapis | else:
|
910 | 22dab079 | Antony Chazapis | # Footer.
|
911 | 22dab079 | Antony Chazapis | out.append('')
|
912 | 22dab079 | Antony Chazapis | out.append('--' + self.boundary + '--') |
913 | 22dab079 | Antony Chazapis | out.append('')
|
914 | 22dab079 | Antony Chazapis | return '\r\n'.join(out) |
915 | 22dab079 | Antony Chazapis | |
916 | 2715ade4 | Sofia Papagiannaki | |
917 | 8cb45c13 | Antony Chazapis | def object_data_response(request, sizes, hashmaps, meta, public=False): |
918 | 7bef5750 | Antony Chazapis | """Get the HttpResponse object for replying with the object's data."""
|
919 | 2715ade4 | Sofia Papagiannaki | |
920 | 7bef5750 | Antony Chazapis | # Range handling.
|
921 | 8cb45c13 | Antony Chazapis | size = sum(sizes)
|
922 | 7bef5750 | Antony Chazapis | ranges = get_range(request, size) |
923 | 7bef5750 | Antony Chazapis | if ranges is None: |
924 | 7bef5750 | Antony Chazapis | ranges = [(0, size)]
|
925 | 7bef5750 | Antony Chazapis | ret = 200
|
926 | 7bef5750 | Antony Chazapis | else:
|
927 | 7bef5750 | Antony Chazapis | check = [True for offset, length in ranges if |
928 | 2715ade4 | Sofia Papagiannaki | length <= 0 or length > size or |
929 | 2715ade4 | Sofia Papagiannaki | offset < 0 or offset >= size or |
930 | 2715ade4 | Sofia Papagiannaki | offset + length > size] |
931 | 7bef5750 | Antony Chazapis | if len(check) > 0: |
932 | ad0efdb3 | Ilias Tsitsimpis | raise faults.RangeNotSatisfiable(
|
933 | ad0efdb3 | Ilias Tsitsimpis | 'Requested range exceeds object limits')
|
934 | 7bef5750 | Antony Chazapis | ret = 206
|
935 | 15d465b8 | Antony Chazapis | if_range = request.META.get('HTTP_IF_RANGE')
|
936 | 15d465b8 | Antony Chazapis | if if_range:
|
937 | 6d1e6dce | Sofia Papagiannaki | try:
|
938 | 15d465b8 | Antony Chazapis | # Modification time has passed instead.
|
939 | 6d1e6dce | Sofia Papagiannaki | last_modified = parse_http_date(if_range) |
940 | 6d1e6dce | Sofia Papagiannaki | if last_modified != meta['modified']: |
941 | 6d1e6dce | Sofia Papagiannaki | ranges = [(0, size)]
|
942 | 6d1e6dce | Sofia Papagiannaki | ret = 200
|
943 | 6d1e6dce | Sofia Papagiannaki | except ValueError: |
944 | 33b4e4a6 | Antony Chazapis | if if_range != meta['checksum']: |
945 | 6d1e6dce | Sofia Papagiannaki | ranges = [(0, size)]
|
946 | 6d1e6dce | Sofia Papagiannaki | ret = 200
|
947 | 2715ade4 | Sofia Papagiannaki | |
948 | 7bef5750 | Antony Chazapis | if ret == 206 and len(ranges) > 1: |
949 | 7bef5750 | Antony Chazapis | boundary = uuid.uuid4().hex |
950 | 7bef5750 | Antony Chazapis | else:
|
951 | 7bef5750 | Antony Chazapis | boundary = ''
|
952 | 39593b2b | Giorgos Verigakis | wrapper = ObjectWrapper(request.backend, ranges, sizes, hashmaps, boundary) |
953 | 7bef5750 | Antony Chazapis | response = HttpResponse(wrapper, status=ret) |
954 | 469d0997 | Georgios D. Tsoukalas | put_object_headers( |
955 | ad0efdb3 | Ilias Tsitsimpis | response, meta, restricted=public, |
956 | 1d2af25c | Sofia Papagiannaki | token=getattr(request, 'token', None), |
957 | 1d2af25c | Sofia Papagiannaki | disposition_type=request.GET.get('disposition-type'))
|
958 | 7bef5750 | Antony Chazapis | if ret == 206: |
959 | 7bef5750 | Antony Chazapis | if len(ranges) == 1: |
960 | 7bef5750 | Antony Chazapis | offset, length = ranges[0]
|
961 | 2715ade4 | Sofia Papagiannaki | response[ |
962 | 2715ade4 | Sofia Papagiannaki | 'Content-Length'] = length # Update with the correct length. |
963 | 2715ade4 | Sofia Papagiannaki | response['Content-Range'] = 'bytes %d-%d/%d' % ( |
964 | 2715ade4 | Sofia Papagiannaki | offset, offset + length - 1, size)
|
965 | 7bef5750 | Antony Chazapis | else:
|
966 | 7bef5750 | Antony Chazapis | del(response['Content-Length']) |
967 | 2715ade4 | Sofia Papagiannaki | response['Content-Type'] = 'multipart/byteranges; boundary=%s' % ( |
968 | 2715ade4 | Sofia Papagiannaki | boundary,) |
969 | 7bef5750 | Antony Chazapis | return response
|
970 | 7bef5750 | Antony Chazapis | |
971 | 2715ade4 | Sofia Papagiannaki | |
972 | 39593b2b | Giorgos Verigakis | def put_object_block(request, hashmap, data, offset): |
973 | cb146cf9 | Antony Chazapis | """Put one block of data at the given offset."""
|
974 | 2715ade4 | Sofia Papagiannaki | |
975 | 39593b2b | Giorgos Verigakis | bi = int(offset / request.backend.block_size)
|
976 | 39593b2b | Giorgos Verigakis | bo = offset % request.backend.block_size |
977 | 39593b2b | Giorgos Verigakis | bl = min(len(data), request.backend.block_size - bo) |
978 | cb146cf9 | Antony Chazapis | if bi < len(hashmap): |
979 | 39593b2b | Giorgos Verigakis | hashmap[bi] = request.backend.update_block(hashmap[bi], data[:bl], bo) |
980 | cb146cf9 | Antony Chazapis | else:
|
981 | 39593b2b | Giorgos Verigakis | hashmap.append(request.backend.put_block(('\x00' * bo) + data[:bl]))
|
982 | 2715ade4 | Sofia Papagiannaki | return bl # Return ammount of data written. |
983 | 2715ade4 | Sofia Papagiannaki | |
984 | cb146cf9 | Antony Chazapis | |
985 | b3155065 | Antony Chazapis | def hashmap_md5(backend, hashmap, size): |
986 | cddcf432 | chazapis | """Produce the MD5 sum from the data in the hashmap."""
|
987 | 2715ade4 | Sofia Papagiannaki | |
988 | ad0efdb3 | Ilias Tsitsimpis | # TODO: Search backend for the MD5 of another object
|
989 | ad0efdb3 | Ilias Tsitsimpis | # with the same hashmap and size...
|
990 | cddcf432 | chazapis | md5 = hashlib.md5() |
991 | b3155065 | Antony Chazapis | bs = backend.block_size |
992 | cddcf432 | chazapis | for bi, hash in enumerate(hashmap): |
993 | 2715ade4 | Sofia Papagiannaki | data = backend.get_block(hash) # Blocks come in padded. |
994 | cddcf432 | chazapis | if bi == len(hashmap) - 1: |
995 | c9865fe1 | Antony Chazapis | data = data[:size % bs] |
996 | c9865fe1 | Antony Chazapis | md5.update(data) |
997 | cddcf432 | chazapis | return md5.hexdigest().lower()
|
998 | 49133392 | Antony Chazapis | |
999 | 2715ade4 | Sofia Papagiannaki | |
1000 | af7bb62f | Antony Chazapis | def simple_list_response(request, l): |
1001 | 6b6b6c1e | Antony Chazapis | if request.serialization == 'text': |
1002 | 6b6b6c1e | Antony Chazapis | return '\n'.join(l) + '\n' |
1003 | 6b6b6c1e | Antony Chazapis | if request.serialization == 'xml': |
1004 | af7bb62f | Antony Chazapis | return render_to_string('items.xml', {'items': l}) |
1005 | 6b6b6c1e | Antony Chazapis | if request.serialization == 'json': |
1006 | 6b6b6c1e | Antony Chazapis | return json.dumps(l)
|
1007 | 6b6b6c1e | Antony Chazapis | |
1008 | 35d42381 | Vangelis Koukis | |
1009 | edb7875c | Christos Stavrakakis | from pithos.backends.util import PithosBackendPool |
1010 | 61c5b615 | Sofia Papagiannaki | |
1011 | 47462eda | Filippos Giannakos | if RADOS_STORAGE:
|
1012 | ad0efdb3 | Ilias Tsitsimpis | BLOCK_PARAMS = {'mappool': RADOS_POOL_MAPS,
|
1013 | ad0efdb3 | Ilias Tsitsimpis | 'blockpool': RADOS_POOL_BLOCKS, }
|
1014 | 47462eda | Filippos Giannakos | else:
|
1015 | ad0efdb3 | Ilias Tsitsimpis | BLOCK_PARAMS = {'mappool': None, |
1016 | ad0efdb3 | Ilias Tsitsimpis | 'blockpool': None, } |
1017 | 35d42381 | Vangelis Koukis | |
1018 | 74cbb94a | Sofia Papagiannaki | BACKEND_KWARGS = dict(
|
1019 | 74cbb94a | Sofia Papagiannaki | db_module=BACKEND_DB_MODULE, |
1020 | 74cbb94a | Sofia Papagiannaki | db_connection=BACKEND_DB_CONNECTION, |
1021 | 74cbb94a | Sofia Papagiannaki | block_module=BACKEND_BLOCK_MODULE, |
1022 | 74cbb94a | Sofia Papagiannaki | block_path=BACKEND_BLOCK_PATH, |
1023 | 74cbb94a | Sofia Papagiannaki | block_umask=BACKEND_BLOCK_UMASK, |
1024 | 74cbb94a | Sofia Papagiannaki | block_size=BACKEND_BLOCK_SIZE, |
1025 | 74cbb94a | Sofia Papagiannaki | hash_algorithm=BACKEND_HASH_ALGORITHM, |
1026 | 74cbb94a | Sofia Papagiannaki | queue_module=BACKEND_QUEUE_MODULE, |
1027 | 74cbb94a | Sofia Papagiannaki | queue_hosts=BACKEND_QUEUE_HOSTS, |
1028 | 74cbb94a | Sofia Papagiannaki | queue_exchange=BACKEND_QUEUE_EXCHANGE, |
1029 | f759041f | Ilias Tsitsimpis | astakos_auth_url=ASTAKOS_AUTH_URL, |
1030 | 74cbb94a | Sofia Papagiannaki | service_token=SERVICE_TOKEN, |
1031 | 74cbb94a | Sofia Papagiannaki | astakosclient_poolsize=ASTAKOSCLIENT_POOLSIZE, |
1032 | 74cbb94a | Sofia Papagiannaki | free_versioning=BACKEND_FREE_VERSIONING, |
1033 | 74cbb94a | Sofia Papagiannaki | block_params=BLOCK_PARAMS, |
1034 | 74cbb94a | Sofia Papagiannaki | public_url_security=PUBLIC_URL_SECURITY, |
1035 | 74cbb94a | Sofia Papagiannaki | public_url_alphabet=PUBLIC_URL_ALPHABET, |
1036 | 74cbb94a | Sofia Papagiannaki | account_quota_policy=BACKEND_ACCOUNT_QUOTA, |
1037 | 74cbb94a | Sofia Papagiannaki | container_quota_policy=BACKEND_CONTAINER_QUOTA, |
1038 | 74cbb94a | Sofia Papagiannaki | container_versioning_policy=BACKEND_VERSIONING) |
1039 | 74cbb94a | Sofia Papagiannaki | |
1040 | 74cbb94a | Sofia Papagiannaki | _pithos_backend_pool = PithosBackendPool(size=BACKEND_POOL_SIZE, |
1041 | 74cbb94a | Sofia Papagiannaki | **BACKEND_KWARGS) |
1042 | 35d42381 | Vangelis Koukis | |
1043 | 65bbcd43 | Christos Stavrakakis | |
1044 | 35d42381 | Vangelis Koukis | def get_backend(): |
1045 | 74cbb94a | Sofia Papagiannaki | if BACKEND_POOL_ENABLED:
|
1046 | 74cbb94a | Sofia Papagiannaki | backend = _pithos_backend_pool.pool_get() |
1047 | 74cbb94a | Sofia Papagiannaki | else:
|
1048 | 74cbb94a | Sofia Papagiannaki | backend = connect_backend(**BACKEND_KWARGS) |
1049 | 74cbb94a | Sofia Papagiannaki | backend.serials = [] |
1050 | f77b1da9 | Stratos Psomadakis | backend.messages = [] |
1051 | edb7875c | Christos Stavrakakis | return backend
|
1052 | 35d42381 | Vangelis Koukis | |
1053 | 35d42381 | Vangelis Koukis | |
1054 | 9fefc052 | Antony Chazapis | def update_request_headers(request): |
1055 | 9fefc052 | Antony Chazapis | # Handle URL-encoded keys and values.
|
1056 | 2715ade4 | Sofia Papagiannaki | meta = dict([(
|
1057 | 2715ade4 | Sofia Papagiannaki | k, v) for k, v in request.META.iteritems() if k.startswith('HTTP_')]) |
1058 | 88283e9e | Antony Chazapis | for k, v in meta.iteritems(): |
1059 | 88283e9e | Antony Chazapis | try:
|
1060 | 88283e9e | Antony Chazapis | k.decode('ascii')
|
1061 | 88283e9e | Antony Chazapis | v.decode('ascii')
|
1062 | 88283e9e | Antony Chazapis | except UnicodeDecodeError: |
1063 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Bad character in headers.') |
1064 | 88283e9e | Antony Chazapis | if '%' in k or '%' in v: |
1065 | 88283e9e | Antony Chazapis | del(request.META[k])
|
1066 | 2715ade4 | Sofia Papagiannaki | request.META[unquote(k)] = smart_unicode(unquote( |
1067 | 2715ade4 | Sofia Papagiannaki | v), strings_only=True)
|
1068 | 2715ade4 | Sofia Papagiannaki | |
1069 | 9fefc052 | Antony Chazapis | |
1070 | b956618e | Antony Chazapis | def update_response_headers(request, response): |
1071 | 9fefc052 | Antony Chazapis | # URL-encode unicode in headers.
|
1072 | 9fefc052 | Antony Chazapis | meta = response.items() |
1073 | 9fefc052 | Antony Chazapis | for k, v in meta: |
1074 | 88283e9e | Antony Chazapis | if (k.startswith('X-Account-') or k.startswith('X-Container-') or |
1075 | 2715ade4 | Sofia Papagiannaki | k.startswith('X-Object-') or k.startswith('Content-')): |
1076 | 9fefc052 | Antony Chazapis | del(response[k])
|
1077 | 88283e9e | Antony Chazapis | response[quote(k)] = quote(v, safe='/=,:@; ')
|
1078 | b956618e | Antony Chazapis | |
1079 | 2715ade4 | Sofia Papagiannaki | |
1080 | b90584d0 | Sofia Papagiannaki | def api_method(http_method=None, token_required=True, user_required=True, |
1081 | b90584d0 | Sofia Papagiannaki | logger=None, format_allowed=False, serializations=None, |
1082 | b90584d0 | Sofia Papagiannaki | strict_serlization=False, lock_container_path=False): |
1083 | d823a562 | Kostas Papadimitriou | serializations = serializations or ['json', 'xml'] |
1084 | cc62d2ab | Sofia Papagiannaki | |
1085 | b956618e | Antony Chazapis | def decorator(func): |
1086 | d630c78b | Sofia Papagiannaki | @api.api_method(http_method=http_method, token_required=token_required,
|
1087 | d630c78b | Sofia Papagiannaki | user_required=user_required, |
1088 | 47ef53d5 | Christos Stavrakakis | logger=logger, format_allowed=format_allowed, |
1089 | f759041f | Ilias Tsitsimpis | astakos_auth_url=ASTAKOS_AUTH_URL, |
1090 | b5aeeb2f | Kostas Papadimitriou | serializations=serializations, |
1091 | b5aeeb2f | Kostas Papadimitriou | strict_serlization=strict_serlization) |
1092 | b956618e | Antony Chazapis | @wraps(func)
|
1093 | b956618e | Antony Chazapis | def wrapper(request, *args, **kwargs): |
1094 | 65bbcd43 | Christos Stavrakakis | # The args variable may contain up to (account, container, object).
|
1095 | 65bbcd43 | Christos Stavrakakis | if len(args) > 1 and len(args[1]) > 256: |
1096 | 65bbcd43 | Christos Stavrakakis | raise faults.BadRequest("Container name too large") |
1097 | 65bbcd43 | Christos Stavrakakis | if len(args) > 2 and len(args[2]) > 1024: |
1098 | 65bbcd43 | Christos Stavrakakis | raise faults.BadRequest('Object name too large.') |
1099 | 2715ade4 | Sofia Papagiannaki | |
1100 | d47565d8 | Buildbot | success_status = False
|
1101 | d47565d8 | Buildbot | try:
|
1102 | 65bbcd43 | Christos Stavrakakis | # Add a PithosBackend as attribute of the request object
|
1103 | d47565d8 | Buildbot | request.backend = get_backend() |
1104 | d47565d8 | Buildbot | request.backend.pre_exec(lock_container_path) |
1105 | 9f135224 | Sofia Papagiannaki | |
1106 | 65bbcd43 | Christos Stavrakakis | # Many API method expect thet X-Auth-Token in request,token
|
1107 | 65bbcd43 | Christos Stavrakakis | request.token = request.x_auth_token |
1108 | 65bbcd43 | Christos Stavrakakis | update_request_headers(request) |
1109 | b956618e | Antony Chazapis | response = func(request, *args, **kwargs) |
1110 | b956618e | Antony Chazapis | update_response_headers(request, response) |
1111 | 9f135224 | Sofia Papagiannaki | |
1112 | d47565d8 | Buildbot | success_status = True
|
1113 | b956618e | Antony Chazapis | return response
|
1114 | d47565d8 | Buildbot | finally:
|
1115 | d47565d8 | Buildbot | # Always close PithosBackend connection
|
1116 | d47565d8 | Buildbot | if getattr(request, "backend", None) is not None: |
1117 | d47565d8 | Buildbot | request.backend.post_exec(success_status) |
1118 | d47565d8 | Buildbot | request.backend.close() |
1119 | b956618e | Antony Chazapis | return wrapper
|
1120 | b956618e | Antony Chazapis | return decorator
|
1121 | 63de12cf | Sofia Papagiannaki | |
1122 | 63de12cf | Sofia Papagiannaki | |
1123 | 46662ee6 | Kostas Papadimitriou | def restrict_to_host(host=None): |
1124 | 46662ee6 | Kostas Papadimitriou | """
|
1125 | 46662ee6 | Kostas Papadimitriou | View decorator which restricts wrapped view to be accessed only under the
|
1126 | 46662ee6 | Kostas Papadimitriou | host set. If an invalid host is identified and request HTTP method is one
|
1127 | 46662ee6 | Kostas Papadimitriou | of ``GET``, ``HOST``, the decorator will return a redirect response using a
|
1128 | 46662ee6 | Kostas Papadimitriou | clone of the request with host replaced to the one the restriction applies
|
1129 | 46662ee6 | Kostas Papadimitriou | to.
|
1130 | 46662ee6 | Kostas Papadimitriou |
|
1131 | 46662ee6 | Kostas Papadimitriou | e.g.
|
1132 | 46662ee6 | Kostas Papadimitriou | @restrict_to_host('files.example.com')
|
1133 | 46662ee6 | Kostas Papadimitriou | my_restricted_view(request, path):
|
1134 | 46662ee6 | Kostas Papadimitriou | return HttpResponse(file(path).read())
|
1135 | 46662ee6 | Kostas Papadimitriou |
|
1136 | 46662ee6 | Kostas Papadimitriou | A get to ``https://api.example.com/my_restricted_view/file_path/?param=1``
|
1137 | 46662ee6 | Kostas Papadimitriou | will return a redirect response with Location header set to
|
1138 | 46662ee6 | Kostas Papadimitriou | ``https://files.example.com/my_restricted_view/file_path/?param=1``.
|
1139 | 46662ee6 | Kostas Papadimitriou |
|
1140 | 46662ee6 | Kostas Papadimitriou | If host is set to ``None`` no restriction will be applied.
|
1141 | 46662ee6 | Kostas Papadimitriou | """
|
1142 | 46662ee6 | Kostas Papadimitriou | def decorator(func): |
1143 | 46662ee6 | Kostas Papadimitriou | # skip decoration if no host is set
|
1144 | 46662ee6 | Kostas Papadimitriou | if not host: |
1145 | 46662ee6 | Kostas Papadimitriou | return func
|
1146 | 46662ee6 | Kostas Papadimitriou | |
1147 | 46662ee6 | Kostas Papadimitriou | @wraps(func)
|
1148 | 46662ee6 | Kostas Papadimitriou | def wrapper(request, *args, **kwargs): |
1149 | 46662ee6 | Kostas Papadimitriou | request_host = request.get_host() |
1150 | 46662ee6 | Kostas Papadimitriou | if host != request_host:
|
1151 | 46662ee6 | Kostas Papadimitriou | proto = 'https' if request.is_secure() else 'http' |
1152 | 46662ee6 | Kostas Papadimitriou | if request.method in ['GET', 'HEAD']: |
1153 | 46662ee6 | Kostas Papadimitriou | full_path = request.get_full_path() |
1154 | 46662ee6 | Kostas Papadimitriou | redirect_uri = "%s://%s%s" % (proto, host, full_path)
|
1155 | 46662ee6 | Kostas Papadimitriou | return HttpResponseRedirect(redirect_uri)
|
1156 | 46662ee6 | Kostas Papadimitriou | else:
|
1157 | 46662ee6 | Kostas Papadimitriou | raise PermissionDenied
|
1158 | 46662ee6 | Kostas Papadimitriou | return func(request, *args, **kwargs)
|
1159 | 46662ee6 | Kostas Papadimitriou | return wrapper
|
1160 | 46662ee6 | Kostas Papadimitriou | return decorator
|
1161 | 46662ee6 | Kostas Papadimitriou | |
1162 | 46662ee6 | Kostas Papadimitriou | |
1163 | 63de12cf | Sofia Papagiannaki | def view_method(): |
1164 | 63de12cf | Sofia Papagiannaki | """Decorator function for views."""
|
1165 | 63de12cf | Sofia Papagiannaki | |
1166 | 63de12cf | Sofia Papagiannaki | def decorator(func): |
1167 | 4bf0ab85 | Sofia Papagiannaki | @restrict_to_host(UNSAFE_DOMAIN)
|
1168 | 63de12cf | Sofia Papagiannaki | @wraps(func)
|
1169 | 63de12cf | Sofia Papagiannaki | def wrapper(request, *args, **kwargs): |
1170 | 46662ee6 | Kostas Papadimitriou | if request.method not in ['GET', 'HEAD']: |
1171 | 46662ee6 | Kostas Papadimitriou | return HttpResponseNotAllowed(['GET', 'HEAD']) |
1172 | 5ae33f6c | Sofia Papagiannaki | |
1173 | 8f2eb016 | Sofia Papagiannaki | try:
|
1174 | 8f2eb016 | Sofia Papagiannaki | access_token = request.GET.get('access_token')
|
1175 | ae73cdc0 | Sofia Papagiannaki | requested_resource = text.uenc(request.path.split(VIEW_PREFIX, |
1176 | ae73cdc0 | Sofia Papagiannaki | 2)[-1]) |
1177 | 8f2eb016 | Sofia Papagiannaki | astakos = AstakosClient(SERVICE_TOKEN, ASTAKOS_AUTH_URL, |
1178 | 8f2eb016 | Sofia Papagiannaki | retry=2, use_pool=True, |
1179 | 8f2eb016 | Sofia Papagiannaki | logger=logger) |
1180 | 8f2eb016 | Sofia Papagiannaki | if access_token is not None: |
1181 | 5ae33f6c | Sofia Papagiannaki | # authenticate using the short-term access token
|
1182 | b32183c6 | Sofia Papagiannaki | try:
|
1183 | b32183c6 | Sofia Papagiannaki | request.user = astakos.validate_token( |
1184 | b32183c6 | Sofia Papagiannaki | access_token, requested_resource) |
1185 | 256213e4 | Sofia Papagiannaki | except AstakosClientException:
|
1186 | b32183c6 | Sofia Papagiannaki | return HttpResponseRedirect(request.path)
|
1187 | 8f2eb016 | Sofia Papagiannaki | request.user_uniq = request.user["access"]["user"]["id"] |
1188 | 8f2eb016 | Sofia Papagiannaki | |
1189 | 5ae33f6c | Sofia Papagiannaki | _func = api_method(token_required=False,
|
1190 | 5ae33f6c | Sofia Papagiannaki | user_required=False)(func)
|
1191 | 5ae33f6c | Sofia Papagiannaki | response = _func(request, *args, **kwargs) |
1192 | 8f2eb016 | Sofia Papagiannaki | if response.status_code == 404: |
1193 | 8f2eb016 | Sofia Papagiannaki | raise Http404
|
1194 | b32183c6 | Sofia Papagiannaki | elif response.status_code == 403: |
1195 | 8f2eb016 | Sofia Papagiannaki | raise PermissionDenied
|
1196 | 8f2eb016 | Sofia Papagiannaki | return response
|
1197 | 8f2eb016 | Sofia Papagiannaki | |
1198 | fe7d0186 | Sofia Papagiannaki | client_id, client_secret = OAUTH2_CLIENT_CREDENTIALS |
1199 | 8f2eb016 | Sofia Papagiannaki | # TODO: check if client credentials are not set
|
1200 | 8f2eb016 | Sofia Papagiannaki | authorization_code = request.GET.get('code')
|
1201 | 8c7e1398 | Sofia Papagiannaki | redirect_uri = unquote(request.build_absolute_uri( |
1202 | 8c7e1398 | Sofia Papagiannaki | request.get_full_path())) |
1203 | 8f2eb016 | Sofia Papagiannaki | if authorization_code is None: |
1204 | 5ae33f6c | Sofia Papagiannaki | # request authorization code
|
1205 | 8f2eb016 | Sofia Papagiannaki | params = {'response_type': 'code', |
1206 | 8f2eb016 | Sofia Papagiannaki | 'client_id': client_id,
|
1207 | 8c7e1398 | Sofia Papagiannaki | 'redirect_uri': redirect_uri,
|
1208 | 5ae33f6c | Sofia Papagiannaki | 'state': '', # TODO include state for security |
1209 | ae73cdc0 | Sofia Papagiannaki | 'scope': requested_resource}
|
1210 | 8f2eb016 | Sofia Papagiannaki | return HttpResponseRedirect('%s?%s' % |
1211 | fe7d0186 | Sofia Papagiannaki | (join_urls(astakos.oauth2_url, |
1212 | fcd85f90 | Sofia Papagiannaki | 'auth'),
|
1213 | 8f2eb016 | Sofia Papagiannaki | urlencode(params))) |
1214 | 8f2eb016 | Sofia Papagiannaki | else:
|
1215 | e7f0ec5e | Sofia Papagiannaki | # request short-term access token
|
1216 | 8c7e1398 | Sofia Papagiannaki | parts = list(urlsplit(redirect_uri))
|
1217 | 8c7e1398 | Sofia Papagiannaki | params = dict(parse_qsl(parts[3], keep_blank_values=True)) |
1218 | 8c7e1398 | Sofia Papagiannaki | if 'code' in params: # always True |
1219 | 8c7e1398 | Sofia Papagiannaki | del params['code'] |
1220 | 8c7e1398 | Sofia Papagiannaki | if 'state' in params: |
1221 | 8c7e1398 | Sofia Papagiannaki | del params['state'] |
1222 | 8c7e1398 | Sofia Papagiannaki | parts[3] = urlencode(params)
|
1223 | 8c7e1398 | Sofia Papagiannaki | redirect_uri = urlunsplit(parts) |
1224 | 5ae33f6c | Sofia Papagiannaki | data = astakos.get_token('authorization_code',
|
1225 | fe7d0186 | Sofia Papagiannaki | *OAUTH2_CLIENT_CREDENTIALS, |
1226 | 8f2eb016 | Sofia Papagiannaki | redirect_uri=redirect_uri, |
1227 | 8f2eb016 | Sofia Papagiannaki | scope=requested_resource, |
1228 | 8f2eb016 | Sofia Papagiannaki | code=authorization_code) |
1229 | 8c7e1398 | Sofia Papagiannaki | params['access_token'] = data.get('access_token', '') |
1230 | 8c7e1398 | Sofia Papagiannaki | parts[3] = urlencode(params)
|
1231 | 8c7e1398 | Sofia Papagiannaki | redirect_uri = urlunsplit(parts) |
1232 | 8c7e1398 | Sofia Papagiannaki | return HttpResponseRedirect(redirect_uri)
|
1233 | 5ae33f6c | Sofia Papagiannaki | except AstakosClientException, err:
|
1234 | 5ae33f6c | Sofia Papagiannaki | logger.exception(err) |
1235 | 8f2eb016 | Sofia Papagiannaki | raise PermissionDenied
|
1236 | 63de12cf | Sofia Papagiannaki | return wrapper
|
1237 | 63de12cf | Sofia Papagiannaki | return decorator
|
1238 | 133e3fcf | Sofia Papagiannaki | |
1239 | 133e3fcf | Sofia Papagiannaki | |
1240 | 133e3fcf | Sofia Papagiannaki | class Checksum: |
1241 | 133e3fcf | Sofia Papagiannaki | def __init__(self): |
1242 | 133e3fcf | Sofia Papagiannaki | self.md5 = hashlib.md5()
|
1243 | 133e3fcf | Sofia Papagiannaki | |
1244 | 133e3fcf | Sofia Papagiannaki | def update(self, data): |
1245 | 133e3fcf | Sofia Papagiannaki | self.md5.update(data)
|
1246 | 133e3fcf | Sofia Papagiannaki | |
1247 | 133e3fcf | Sofia Papagiannaki | def hexdigest(self): |
1248 | 133e3fcf | Sofia Papagiannaki | return self.md5.hexdigest().lower() |
1249 | 133e3fcf | Sofia Papagiannaki | |
1250 | cc62d2ab | Sofia Papagiannaki | |
1251 | 133e3fcf | Sofia Papagiannaki | class NoChecksum: |
1252 | 133e3fcf | Sofia Papagiannaki | def update(self, data): |
1253 | 133e3fcf | Sofia Papagiannaki | pass
|
1254 | 133e3fcf | Sofia Papagiannaki | |
1255 | 133e3fcf | Sofia Papagiannaki | def hexdigest(self): |
1256 | 133e3fcf | Sofia Papagiannaki | return '' |