root / snf-pithos-app / pithos / api / util.py @ 657f330d
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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 | b956618e | Antony Chazapis | |
38 | 798143d9 | Sofia Papagiannaki | from django.http import (HttpResponse, Http404, HttpResponseRedirect, |
39 | 798143d9 | Sofia Papagiannaki | HttpResponseNotAllowed) |
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 | 8f2eb016 | Sofia Papagiannaki | from django.core.exceptions import PermissionDenied |
48 | b956618e | Antony Chazapis | |
49 | 896754a6 | Christos Stavrakakis | from snf_django.lib.api.parsedate import parse_http_date_safe, parse_http_date |
50 | 65bbcd43 | Christos Stavrakakis | from snf_django.lib import api |
51 | 65bbcd43 | Christos Stavrakakis | from snf_django.lib.api import faults, utils |
52 | 5a96180b | Antony Chazapis | |
53 | a7dff008 | Antony Chazapis | from pithos.api.settings import (BACKEND_DB_MODULE, BACKEND_DB_CONNECTION, |
54 | 761c2b3c | root | BACKEND_BLOCK_MODULE, BACKEND_BLOCK_PATH, |
55 | 761c2b3c | root | BACKEND_BLOCK_UMASK, |
56 | f4fbb0fa | Sofia Papagiannaki | BACKEND_QUEUE_MODULE, BACKEND_QUEUE_HOSTS, |
57 | b17e5550 | Giorgos Korfiatis | BACKEND_QUEUE_EXCHANGE, |
58 | 16f2673e | Sofia Papagiannaki | ASTAKOSCLIENT_POOLSIZE, |
59 | b17e5550 | Giorgos Korfiatis | SERVICE_TOKEN, |
60 | f759041f | Ilias Tsitsimpis | ASTAKOS_AUTH_URL, |
61 | 29148653 | Sofia Papagiannaki | BACKEND_ACCOUNT_QUOTA, |
62 | 29148653 | Sofia Papagiannaki | BACKEND_CONTAINER_QUOTA, |
63 | 29148653 | Sofia Papagiannaki | BACKEND_VERSIONING, BACKEND_FREE_VERSIONING, |
64 | 74cbb94a | Sofia Papagiannaki | BACKEND_POOL_ENABLED, BACKEND_POOL_SIZE, |
65 | 369a7b41 | Sofia Papagiannaki | BACKEND_BLOCK_SIZE, BACKEND_HASH_ALGORITHM, |
66 | 47462eda | Filippos Giannakos | RADOS_STORAGE, RADOS_POOL_BLOCKS, |
67 | 56f3c759 | Sofia Papagiannaki | RADOS_POOL_MAPS, TRANSLATE_UUIDS, |
68 | 133e3fcf | Sofia Papagiannaki | PUBLIC_URL_SECURITY, PUBLIC_URL_ALPHABET, |
69 | 8f2eb016 | Sofia Papagiannaki | BASE_HOST, UPDATE_MD5, VIEW_PREFIX, |
70 | 4bf0ab85 | Sofia Papagiannaki | OAUTH2_CLIENT_CREDENTIALS, UNSAFE_DOMAIN) |
71 | d4e4e501 | Christos Stavrakakis | |
72 | 02de6286 | Sofia Papagiannaki | from pithos.api.resources import resources |
73 | 74cbb94a | Sofia Papagiannaki | from pithos.backends import connect_backend |
74 | 32454501 | Sofia Papagiannaki | from pithos.backends.base import (NotAllowedError, QuotaError, ItemNotExists, |
75 | fac5f6be | Chrysostomos Nanakos | VersionNotExists, IllegalOperationError) |
76 | a3fcee5b | Sofia Papagiannaki | |
77 | a3fcee5b | Sofia Papagiannaki | from synnefo.lib import join_urls |
78 | ae73cdc0 | Sofia Papagiannaki | from synnefo.util import text |
79 | a3fcee5b | Sofia Papagiannaki | |
80 | e6fb591c | Ilias Tsitsimpis | from astakosclient import AstakosClient |
81 | 8f2eb016 | Sofia Papagiannaki | from astakosclient.errors import NoUserName, NoUUID, AstakosClientException |
82 | b956618e | Antony Chazapis | |
83 | b956618e | Antony Chazapis | import logging |
84 | 22dab079 | Antony Chazapis | import re |
85 | cbfb6636 | Sofia Papagiannaki | import hashlib |
86 | 7bef5750 | Antony Chazapis | import uuid |
87 | c48acbfd | Sofia Papagiannaki | import decimal |
88 | 8c793655 | Antony Chazapis | |
89 | b956618e | Antony Chazapis | logger = logging.getLogger(__name__) |
90 | b956618e | Antony Chazapis | |
91 | b956618e | Antony Chazapis | |
92 | c48acbfd | Sofia Papagiannaki | def json_encode_decimal(obj): |
93 | c48acbfd | Sofia Papagiannaki | if isinstance(obj, decimal.Decimal): |
94 | c48acbfd | Sofia Papagiannaki | return str(obj) |
95 | c48acbfd | Sofia Papagiannaki | raise TypeError(repr(obj) + " is not JSON serializable") |
96 | c48acbfd | Sofia Papagiannaki | |
97 | 2715ade4 | Sofia Papagiannaki | |
98 | 804e8fe7 | Antony Chazapis | def rename_meta_key(d, old, new): |
99 | 804e8fe7 | Antony Chazapis | if old not in d: |
100 | 804e8fe7 | Antony Chazapis | return
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101 | 804e8fe7 | Antony Chazapis | d[new] = d[old] |
102 | 804e8fe7 | Antony Chazapis | del(d[old])
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103 | 804e8fe7 | Antony Chazapis | |
104 | 2715ade4 | Sofia Papagiannaki | |
105 | 02c0c3fa | Antony Chazapis | def printable_header_dict(d): |
106 | b956618e | Antony Chazapis | """Format a meta dictionary for printing out json/xml.
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107 | 2715ade4 | Sofia Papagiannaki |
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108 | 804e8fe7 | Antony Chazapis | Convert all keys to lower case and replace dashes with underscores.
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109 | 804e8fe7 | Antony Chazapis | Format 'last_modified' timestamp.
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110 | b956618e | Antony Chazapis | """
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111 | 2715ade4 | Sofia Papagiannaki | |
112 | 87835e94 | Nanakos Chrysostomos | timestamps = ('last_modified', 'x_container_until_timestamp', |
113 | 87835e94 | Nanakos Chrysostomos | 'x_acount_until_timestamp')
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114 | 87835e94 | Nanakos Chrysostomos | for timestamp in timestamps: |
115 | 87835e94 | Nanakos Chrysostomos | if timestamp in d and d[timestamp]: |
116 | 87835e94 | Nanakos Chrysostomos | d[timestamp] = utils.isoformat( |
117 | f759041f | Ilias Tsitsimpis | datetime.fromtimestamp(d[timestamp])) |
118 | b956618e | Antony Chazapis | return dict([(k.lower().replace('-', '_'), v) for k, v in d.iteritems()]) |
119 | b956618e | Antony Chazapis | |
120 | 2715ade4 | Sofia Papagiannaki | |
121 | 02c0c3fa | Antony Chazapis | def format_header_key(k): |
122 | 58a6c894 | Antony Chazapis | """Convert underscores to dashes and capitalize intra-dash strings."""
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123 | b956618e | Antony Chazapis | return '-'.join([x.capitalize() for x in k.replace('_', '-').split('-')]) |
124 | b956618e | Antony Chazapis | |
125 | 2715ade4 | Sofia Papagiannaki | |
126 | 02c0c3fa | Antony Chazapis | def get_header_prefix(request, prefix): |
127 | ad0efdb3 | Ilias Tsitsimpis | """Get all prefix-* request headers in a dict.
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128 | ad0efdb3 | Ilias Tsitsimpis | Reformat keys with format_header_key()."""
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129 | 2715ade4 | Sofia Papagiannaki | |
130 | b956618e | Antony Chazapis | prefix = 'HTTP_' + prefix.upper().replace('-', '_') |
131 | 3ab38c43 | Antony Chazapis | # TODO: Document or remove '~' replacing.
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132 | ad0efdb3 | Ilias Tsitsimpis | return dict([(format_header_key(k[5:]), v.replace('~', '')) |
133 | ad0efdb3 | Ilias Tsitsimpis | for k, v in request.META.iteritems() |
134 | ad0efdb3 | Ilias Tsitsimpis | if k.startswith(prefix) and len(k) > len(prefix)]) |
135 | 02c0c3fa | Antony Chazapis | |
136 | 2715ade4 | Sofia Papagiannaki | |
137 | 62bf8157 | Antony Chazapis | def check_meta_headers(meta): |
138 | 62bf8157 | Antony Chazapis | if len(meta) > 90: |
139 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Too many headers.') |
140 | 62bf8157 | Antony Chazapis | for k, v in meta.iteritems(): |
141 | 62bf8157 | Antony Chazapis | if len(k) > 128: |
142 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Header name too large.') |
143 | 62bf8157 | Antony Chazapis | if len(v) > 256: |
144 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Header value too large.') |
145 | 62bf8157 | Antony Chazapis | |
146 | 2715ade4 | Sofia Papagiannaki | |
147 | 02c0c3fa | Antony Chazapis | def get_account_headers(request): |
148 | 02c0c3fa | Antony Chazapis | meta = get_header_prefix(request, 'X-Account-Meta-')
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149 | 62bf8157 | Antony Chazapis | check_meta_headers(meta) |
150 | 02c0c3fa | Antony Chazapis | groups = {} |
151 | 02c0c3fa | Antony Chazapis | for k, v in get_header_prefix(request, 'X-Account-Group-').iteritems(): |
152 | 02c0c3fa | Antony Chazapis | n = k[16:].lower()
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153 | 02c0c3fa | Antony Chazapis | if '-' in n or '_' in n: |
154 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Bad characters in group name') |
155 | 02c0c3fa | Antony Chazapis | groups[n] = v.replace(' ', '').split(',') |
156 | 40d6b76d | Antony Chazapis | while '' in groups[n]: |
157 | 02c0c3fa | Antony Chazapis | groups[n].remove('')
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158 | 02c0c3fa | Antony Chazapis | return meta, groups
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159 | 02c0c3fa | Antony Chazapis | |
160 | 2715ade4 | Sofia Papagiannaki | |
161 | 647a5f48 | Antony Chazapis | def put_account_headers(response, meta, groups, policy): |
162 | f6c97079 | Antony Chazapis | if 'count' in meta: |
163 | f6c97079 | Antony Chazapis | response['X-Account-Container-Count'] = meta['count'] |
164 | f6c97079 | Antony Chazapis | if 'bytes' in meta: |
165 | f6c97079 | Antony Chazapis | response['X-Account-Bytes-Used'] = meta['bytes'] |
166 | d065f612 | Antony Chazapis | response['Last-Modified'] = http_date(int(meta['modified'])) |
167 | b956618e | Antony Chazapis | for k in [x for x in meta.keys() if x.startswith('X-Account-Meta-')]: |
168 | 2715ade4 | Sofia Papagiannaki | response[smart_str( |
169 | 2715ade4 | Sofia Papagiannaki | k, strings_only=True)] = smart_str(meta[k], strings_only=True) |
170 | 83dd59c5 | Antony Chazapis | if 'until_timestamp' in meta: |
171 | 2715ade4 | Sofia Papagiannaki | response['X-Account-Until-Timestamp'] = http_date(
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172 | 2715ade4 | Sofia Papagiannaki | int(meta['until_timestamp'])) |
173 | 02c0c3fa | Antony Chazapis | for k, v in groups.iteritems(): |
174 | e7b51248 | Sofia Papagiannaki | k = smart_str(k, strings_only=True)
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175 | e7b51248 | Sofia Papagiannaki | k = format_header_key('X-Account-Group-' + k)
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176 | e7b51248 | Sofia Papagiannaki | v = smart_str(','.join(v), strings_only=True) |
177 | e7b51248 | Sofia Papagiannaki | response[k] = v |
178 | 647a5f48 | Antony Chazapis | for k, v in policy.iteritems(): |
179 | ad0efdb3 | Ilias Tsitsimpis | response[smart_str(format_header_key('X-Account-Policy-' + k),
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180 | ad0efdb3 | Ilias Tsitsimpis | strings_only=True)] = smart_str(v, strings_only=True) |
181 | 647a5f48 | Antony Chazapis | |
182 | 2715ade4 | Sofia Papagiannaki | |
183 | 02c0c3fa | Antony Chazapis | def get_container_headers(request): |
184 | 02c0c3fa | Antony Chazapis | meta = get_header_prefix(request, 'X-Container-Meta-')
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185 | 62bf8157 | Antony Chazapis | check_meta_headers(meta) |
186 | ad0efdb3 | Ilias Tsitsimpis | policy = dict([(k[19:].lower(), v.replace(' ', '')) for k, v in |
187 | ad0efdb3 | Ilias Tsitsimpis | get_header_prefix(request, |
188 | ad0efdb3 | Ilias Tsitsimpis | 'X-Container-Policy-').iteritems()])
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189 | 3ab38c43 | Antony Chazapis | return meta, policy
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190 | b956618e | Antony Chazapis | |
191 | 2715ade4 | Sofia Papagiannaki | |
192 | 39593b2b | Giorgos Verigakis | def put_container_headers(request, response, meta, policy): |
193 | f6c97079 | Antony Chazapis | if 'count' in meta: |
194 | f6c97079 | Antony Chazapis | response['X-Container-Object-Count'] = meta['count'] |
195 | f6c97079 | Antony Chazapis | if 'bytes' in meta: |
196 | f6c97079 | Antony Chazapis | response['X-Container-Bytes-Used'] = meta['bytes'] |
197 | 58a6c894 | Antony Chazapis | response['Last-Modified'] = http_date(int(meta['modified'])) |
198 | b956618e | Antony Chazapis | for k in [x for x in meta.keys() if x.startswith('X-Container-Meta-')]: |
199 | 2715ade4 | Sofia Papagiannaki | response[smart_str( |
200 | 2715ade4 | Sofia Papagiannaki | k, strings_only=True)] = smart_str(meta[k], strings_only=True) |
201 | 2715ade4 | Sofia Papagiannaki | l = [smart_str(x, strings_only=True) for x in meta['object_meta'] |
202 | 2715ade4 | Sofia Papagiannaki | if x.startswith('X-Object-Meta-')] |
203 | e7b51248 | Sofia Papagiannaki | response['X-Container-Object-Meta'] = ','.join([x[14:] for x in l]) |
204 | 39593b2b | Giorgos Verigakis | response['X-Container-Block-Size'] = request.backend.block_size
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205 | 39593b2b | Giorgos Verigakis | response['X-Container-Block-Hash'] = request.backend.hash_algorithm
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206 | 83dd59c5 | Antony Chazapis | if 'until_timestamp' in meta: |
207 | 2715ade4 | Sofia Papagiannaki | response['X-Container-Until-Timestamp'] = http_date(
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208 | 2715ade4 | Sofia Papagiannaki | int(meta['until_timestamp'])) |
209 | 3ab38c43 | Antony Chazapis | for k, v in policy.iteritems(): |
210 | ad0efdb3 | Ilias Tsitsimpis | response[smart_str(format_header_key('X-Container-Policy-' + k),
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211 | 29148653 | Sofia Papagiannaki | strings_only=True)] = smart_str(v,
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212 | 29148653 | Sofia Papagiannaki | strings_only=True)
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213 | b956618e | Antony Chazapis | |
214 | 2715ade4 | Sofia Papagiannaki | |
215 | 02c0c3fa | Antony Chazapis | def get_object_headers(request): |
216 | 66ce2ca5 | Antony Chazapis | content_type = request.META.get('CONTENT_TYPE', None) |
217 | 02c0c3fa | Antony Chazapis | meta = get_header_prefix(request, 'X-Object-Meta-')
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218 | 62bf8157 | Antony Chazapis | check_meta_headers(meta) |
219 | b956618e | Antony Chazapis | if request.META.get('HTTP_CONTENT_ENCODING'): |
220 | b956618e | Antony Chazapis | meta['Content-Encoding'] = request.META['HTTP_CONTENT_ENCODING'] |
221 | 22dab079 | Antony Chazapis | if request.META.get('HTTP_CONTENT_DISPOSITION'): |
222 | 22dab079 | Antony Chazapis | meta['Content-Disposition'] = request.META['HTTP_CONTENT_DISPOSITION'] |
223 | b956618e | Antony Chazapis | if request.META.get('HTTP_X_OBJECT_MANIFEST'): |
224 | b956618e | Antony Chazapis | meta['X-Object-Manifest'] = request.META['HTTP_X_OBJECT_MANIFEST'] |
225 | 66ce2ca5 | Antony Chazapis | return content_type, meta, get_sharing(request), get_public(request)
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226 | b956618e | Antony Chazapis | |
227 | 2715ade4 | Sofia Papagiannaki | |
228 | 469d0997 | Georgios D. Tsoukalas | def put_object_headers(response, meta, restricted=False, token=None): |
229 | 133e3fcf | Sofia Papagiannaki | response['ETag'] = meta['hash'] if not UPDATE_MD5 else meta['checksum'] |
230 | b956618e | Antony Chazapis | response['Content-Length'] = meta['bytes'] |
231 | 8e95eb05 | Sofia Papagiannaki | response.override_serialization = True
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232 | 66ce2ca5 | Antony Chazapis | response['Content-Type'] = meta.get('type', 'application/octet-stream') |
233 | b956618e | Antony Chazapis | response['Last-Modified'] = http_date(int(meta['modified'])) |
234 | 3ab38c43 | Antony Chazapis | if not restricted: |
235 | 4a1c29ea | Antony Chazapis | response['X-Object-Hash'] = meta['hash'] |
236 | 37bee317 | Antony Chazapis | response['X-Object-UUID'] = meta['uuid'] |
237 | 469d0997 | Georgios D. Tsoukalas | if TRANSLATE_UUIDS:
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238 | ad0efdb3 | Ilias Tsitsimpis | meta['modified_by'] = \
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239 | ad0efdb3 | Ilias Tsitsimpis | retrieve_displayname(token, meta['modified_by'])
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240 | 7273ee62 | Sofia Papagiannaki | response['X-Object-Modified-By'] = smart_str(
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241 | 7273ee62 | Sofia Papagiannaki | meta['modified_by'], strings_only=True) |
242 | 7bef5750 | Antony Chazapis | response['X-Object-Version'] = meta['version'] |
243 | 2715ade4 | Sofia Papagiannaki | response['X-Object-Version-Timestamp'] = http_date(
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244 | 2715ade4 | Sofia Papagiannaki | int(meta['version_timestamp'])) |
245 | 7bef5750 | Antony Chazapis | for k in [x for x in meta.keys() if x.startswith('X-Object-Meta-')]: |
246 | 2715ade4 | Sofia Papagiannaki | response[smart_str( |
247 | 2715ade4 | Sofia Papagiannaki | k, strings_only=True)] = smart_str(meta[k], strings_only=True) |
248 | 2715ade4 | Sofia Papagiannaki | for k in ( |
249 | 2715ade4 | Sofia Papagiannaki | 'Content-Encoding', 'Content-Disposition', 'X-Object-Manifest', |
250 | 2715ade4 | Sofia Papagiannaki | 'X-Object-Sharing', 'X-Object-Shared-By', 'X-Object-Allowed-To', |
251 | 2715ade4 | Sofia Papagiannaki | 'X-Object-Public'):
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252 | 7bef5750 | Antony Chazapis | if k in meta: |
253 | e7b51248 | Sofia Papagiannaki | response[k] = smart_str(meta[k], strings_only=True)
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254 | 7bef5750 | Antony Chazapis | else:
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255 | c9af0703 | Antony Chazapis | for k in ('Content-Encoding', 'Content-Disposition'): |
256 | 7bef5750 | Antony Chazapis | if k in meta: |
257 | e8d003e8 | Antony Chazapis | response[k] = smart_str(meta[k], strings_only=True)
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258 | b956618e | Antony Chazapis | |
259 | 2715ade4 | Sofia Papagiannaki | |
260 | 8cb45c13 | Antony Chazapis | def update_manifest_meta(request, v_account, meta): |
261 | 8cb45c13 | Antony Chazapis | """Update metadata if the object has an X-Object-Manifest."""
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262 | 2715ade4 | Sofia Papagiannaki | |
263 | 8cb45c13 | Antony Chazapis | if 'X-Object-Manifest' in meta: |
264 | 4a1c29ea | Antony Chazapis | etag = ''
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265 | 8cb45c13 | Antony Chazapis | bytes = 0
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266 | 8cb45c13 | Antony Chazapis | try:
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267 | 2715ade4 | Sofia Papagiannaki | src_container, src_name = split_container_object_string( |
268 | 2715ade4 | Sofia Papagiannaki | '/' + meta['X-Object-Manifest']) |
269 | 2715ade4 | Sofia Papagiannaki | objects = request.backend.list_objects( |
270 | 2715ade4 | Sofia Papagiannaki | request.user_uniq, v_account, |
271 | 2715ade4 | Sofia Papagiannaki | src_container, prefix=src_name, virtual=False)
|
272 | 8cb45c13 | Antony Chazapis | for x in objects: |
273 | 133e3fcf | Sofia Papagiannaki | src_meta = request.backend.get_object_meta( |
274 | 133e3fcf | Sofia Papagiannaki | request.user_uniq, v_account, src_container, x[0],
|
275 | 133e3fcf | Sofia Papagiannaki | 'pithos', x[1]) |
276 | 133e3fcf | Sofia Papagiannaki | etag += (src_meta['hash'] if not UPDATE_MD5 else |
277 | 133e3fcf | Sofia Papagiannaki | src_meta['checksum'])
|
278 | 8cb45c13 | Antony Chazapis | bytes += src_meta['bytes'] |
279 | 8cb45c13 | Antony Chazapis | except:
|
280 | 8cb45c13 | Antony Chazapis | # Ignore errors.
|
281 | 8cb45c13 | Antony Chazapis | return
|
282 | 8cb45c13 | Antony Chazapis | meta['bytes'] = bytes |
283 | 8cb45c13 | Antony Chazapis | md5 = hashlib.md5() |
284 | 4a1c29ea | Antony Chazapis | md5.update(etag) |
285 | 33b4e4a6 | Antony Chazapis | meta['checksum'] = md5.hexdigest().lower()
|
286 | 8cb45c13 | Antony Chazapis | |
287 | ad0efdb3 | Ilias Tsitsimpis | |
288 | 9839cc96 | root | def is_uuid(str): |
289 | 0325be55 | Sofia Papagiannaki | if str is None: |
290 | 0325be55 | Sofia Papagiannaki | return False |
291 | 9839cc96 | root | try:
|
292 | 9839cc96 | root | uuid.UUID(str)
|
293 | 9839cc96 | root | except ValueError: |
294 | 0325be55 | Sofia Papagiannaki | return False |
295 | 9839cc96 | root | else:
|
296 | ad0efdb3 | Ilias Tsitsimpis | return True |
297 | ad0efdb3 | Ilias Tsitsimpis | |
298 | 2715ade4 | Sofia Papagiannaki | |
299 | 27932481 | Sofia Papagiannaki | ##########################
|
300 | 27932481 | Sofia Papagiannaki | # USER CATALOG utilities #
|
301 | 27932481 | Sofia Papagiannaki | ##########################
|
302 | 27932481 | Sofia Papagiannaki | |
303 | 469d0997 | Georgios D. Tsoukalas | def retrieve_displayname(token, uuid, fail_silently=True): |
304 | f759041f | Ilias Tsitsimpis | astakos = AstakosClient(token, ASTAKOS_AUTH_URL, |
305 | f759041f | Ilias Tsitsimpis | retry=2, use_pool=True, |
306 | e3ff6830 | Georgios D. Tsoukalas | logger=logger) |
307 | e6fb591c | Ilias Tsitsimpis | try:
|
308 | f759041f | Ilias Tsitsimpis | displayname = astakos.get_username(uuid) |
309 | e6fb591c | Ilias Tsitsimpis | except NoUserName:
|
310 | e6fb591c | Ilias Tsitsimpis | if not fail_silently: |
311 | e6fb591c | Ilias Tsitsimpis | raise ItemNotExists(uuid)
|
312 | e6fb591c | Ilias Tsitsimpis | else:
|
313 | e6fb591c | Ilias Tsitsimpis | # just return the uuid
|
314 | e6fb591c | Ilias Tsitsimpis | return uuid
|
315 | 469d0997 | Georgios D. Tsoukalas | return displayname
|
316 | 32454501 | Sofia Papagiannaki | |
317 | ad0efdb3 | Ilias Tsitsimpis | |
318 | 469d0997 | Georgios D. Tsoukalas | def retrieve_displaynames(token, uuids, return_dict=False, fail_silently=True): |
319 | f759041f | Ilias Tsitsimpis | astakos = AstakosClient(token, ASTAKOS_AUTH_URL, |
320 | f759041f | Ilias Tsitsimpis | retry=2, use_pool=True, |
321 | e3ff6830 | Georgios D. Tsoukalas | logger=logger) |
322 | f759041f | Ilias Tsitsimpis | catalog = astakos.get_usernames(uuids) or {}
|
323 | 469d0997 | Georgios D. Tsoukalas | missing = list(set(uuids) - set(catalog)) |
324 | 469d0997 | Georgios D. Tsoukalas | if missing and not fail_silently: |
325 | 469d0997 | Georgios D. Tsoukalas | raise ItemNotExists('Unknown displaynames: %s' % ', '.join(missing)) |
326 | 469d0997 | Georgios D. Tsoukalas | return catalog if return_dict else [catalog.get(i) for i in uuids] |
327 | 88dd5c4d | Sofia Papagiannaki | |
328 | ad0efdb3 | Ilias Tsitsimpis | |
329 | 27932481 | Sofia Papagiannaki | def retrieve_uuid(token, displayname): |
330 | 890c2065 | Sofia Papagiannaki | if is_uuid(displayname):
|
331 | 890c2065 | Sofia Papagiannaki | return displayname
|
332 | 890c2065 | Sofia Papagiannaki | |
333 | f759041f | Ilias Tsitsimpis | astakos = AstakosClient(token, ASTAKOS_AUTH_URL, |
334 | f759041f | Ilias Tsitsimpis | retry=2, use_pool=True, |
335 | e3ff6830 | Georgios D. Tsoukalas | logger=logger) |
336 | e6fb591c | Ilias Tsitsimpis | try:
|
337 | f759041f | Ilias Tsitsimpis | uuid = astakos.get_uuid(displayname) |
338 | e6fb591c | Ilias Tsitsimpis | except NoUUID:
|
339 | 890c2065 | Sofia Papagiannaki | raise ItemNotExists(displayname)
|
340 | 890c2065 | Sofia Papagiannaki | return uuid
|
341 | 890c2065 | Sofia Papagiannaki | |
342 | ad0efdb3 | Ilias Tsitsimpis | |
343 | 469d0997 | Georgios D. Tsoukalas | def retrieve_uuids(token, displaynames, return_dict=False, fail_silently=True): |
344 | f759041f | Ilias Tsitsimpis | astakos = AstakosClient(token, ASTAKOS_AUTH_URL, |
345 | f759041f | Ilias Tsitsimpis | retry=2, use_pool=True, |
346 | e3ff6830 | Georgios D. Tsoukalas | logger=logger) |
347 | f759041f | Ilias Tsitsimpis | catalog = astakos.get_uuids(displaynames) or {}
|
348 | 469d0997 | Georgios D. Tsoukalas | missing = list(set(displaynames) - set(catalog)) |
349 | 469d0997 | Georgios D. Tsoukalas | if missing and not fail_silently: |
350 | 469d0997 | Georgios D. Tsoukalas | raise ItemNotExists('Unknown uuids: %s' % ', '.join(missing)) |
351 | 469d0997 | Georgios D. Tsoukalas | return catalog if return_dict else [catalog.get(i) for i in displaynames] |
352 | 890c2065 | Sofia Papagiannaki | |
353 | ad0efdb3 | Ilias Tsitsimpis | |
354 | 27932481 | Sofia Papagiannaki | def replace_permissions_displayname(token, holder): |
355 | 469d0997 | Georgios D. Tsoukalas | if holder == '*': |
356 | 469d0997 | Georgios D. Tsoukalas | return holder
|
357 | 32454501 | Sofia Papagiannaki | try:
|
358 | 32454501 | Sofia Papagiannaki | # check first for a group permission
|
359 | 4a9e3f32 | Sofia Papagiannaki | account, group = holder.split(':', 1) |
360 | 32454501 | Sofia Papagiannaki | except ValueError: |
361 | 469d0997 | Georgios D. Tsoukalas | return retrieve_uuid(token, holder)
|
362 | 32454501 | Sofia Papagiannaki | else:
|
363 | 469d0997 | Georgios D. Tsoukalas | return ':'.join([retrieve_uuid(token, account), group]) |
364 | 32454501 | Sofia Papagiannaki | |
365 | ad0efdb3 | Ilias Tsitsimpis | |
366 | 27932481 | Sofia Papagiannaki | def replace_permissions_uuid(token, holder): |
367 | 469d0997 | Georgios D. Tsoukalas | if holder == '*': |
368 | 469d0997 | Georgios D. Tsoukalas | return holder
|
369 | 32454501 | Sofia Papagiannaki | try:
|
370 | 32454501 | Sofia Papagiannaki | # check first for a group permission
|
371 | 4a9e3f32 | Sofia Papagiannaki | account, group = holder.split(':', 1) |
372 | 32454501 | Sofia Papagiannaki | except ValueError: |
373 | 469d0997 | Georgios D. Tsoukalas | return retrieve_displayname(token, holder)
|
374 | 32454501 | Sofia Papagiannaki | else:
|
375 | 469d0997 | Georgios D. Tsoukalas | return ':'.join([retrieve_displayname(token, account), group]) |
376 | 32454501 | Sofia Papagiannaki | |
377 | ad0efdb3 | Ilias Tsitsimpis | |
378 | ad0efdb3 | Ilias Tsitsimpis | def update_sharing_meta(request, permissions, v_account, |
379 | ad0efdb3 | Ilias Tsitsimpis | v_container, v_object, meta): |
380 | cca6c617 | Antony Chazapis | if permissions is None: |
381 | cca6c617 | Antony Chazapis | return
|
382 | 067cf1fc | Antony Chazapis | allowed, perm_path, perms = permissions |
383 | cca6c617 | Antony Chazapis | if len(perms) == 0: |
384 | cca6c617 | Antony Chazapis | return
|
385 | 32454501 | Sofia Papagiannaki | |
386 | 27932481 | Sofia Papagiannaki | # replace uuid with displayname
|
387 | 469d0997 | Georgios D. Tsoukalas | if TRANSLATE_UUIDS:
|
388 | 469d0997 | Georgios D. Tsoukalas | perms['read'] = [replace_permissions_uuid(
|
389 | ad0efdb3 | Ilias Tsitsimpis | getattr(request, 'token', None), x) |
390 | ad0efdb3 | Ilias Tsitsimpis | for x in perms.get('read', [])] |
391 | 469d0997 | Georgios D. Tsoukalas | perms['write'] = [replace_permissions_uuid(
|
392 | ad0efdb3 | Ilias Tsitsimpis | getattr(request, 'token', None), x) |
393 | ad0efdb3 | Ilias Tsitsimpis | for x in perms.get('write', [])] |
394 | 32454501 | Sofia Papagiannaki | |
395 | 3436eeb0 | Antony Chazapis | ret = [] |
396 | 32454501 | Sofia Papagiannaki | |
397 | cca6c617 | Antony Chazapis | r = ','.join(perms.get('read', [])) |
398 | 3436eeb0 | Antony Chazapis | if r:
|
399 | 3436eeb0 | Antony Chazapis | ret.append('read=' + r)
|
400 | cca6c617 | Antony Chazapis | w = ','.join(perms.get('write', [])) |
401 | 3436eeb0 | Antony Chazapis | if w:
|
402 | 3436eeb0 | Antony Chazapis | ret.append('write=' + w)
|
403 | cca6c617 | Antony Chazapis | meta['X-Object-Sharing'] = '; '.join(ret) |
404 | cca6c617 | Antony Chazapis | if '/'.join((v_account, v_container, v_object)) != perm_path: |
405 | cca6c617 | Antony Chazapis | meta['X-Object-Shared-By'] = perm_path
|
406 | 61efb530 | Antony Chazapis | if request.user_uniq != v_account:
|
407 | 067cf1fc | Antony Chazapis | meta['X-Object-Allowed-To'] = allowed
|
408 | 3436eeb0 | Antony Chazapis | |
409 | 2715ade4 | Sofia Papagiannaki | |
410 | e0f916bb | Antony Chazapis | def update_public_meta(public, meta): |
411 | e0f916bb | Antony Chazapis | if not public: |
412 | e0f916bb | Antony Chazapis | return
|
413 | a3fcee5b | Sofia Papagiannaki | meta['X-Object-Public'] = join_urls(
|
414 | cc1f91ad | Sofia Papagiannaki | BASE_HOST, reverse('pithos.api.public.public_demux', args=(public,)))
|
415 | e0f916bb | Antony Chazapis | |
416 | 2715ade4 | Sofia Papagiannaki | |
417 | b956618e | Antony Chazapis | def validate_modification_preconditions(request, meta): |
418 | 29148653 | Sofia Papagiannaki | """Check the modified timestamp conforms with the preconditions set."""
|
419 | 2715ade4 | Sofia Papagiannaki | |
420 | 22dab079 | Antony Chazapis | if 'modified' not in meta: |
421 | 2715ade4 | Sofia Papagiannaki | return # TODO: Always return? |
422 | 2715ade4 | Sofia Papagiannaki | |
423 | b956618e | Antony Chazapis | if_modified_since = request.META.get('HTTP_IF_MODIFIED_SINCE')
|
424 | b956618e | Antony Chazapis | if if_modified_since is not None: |
425 | b956618e | Antony Chazapis | if_modified_since = parse_http_date_safe(if_modified_since) |
426 | ad0efdb3 | Ilias Tsitsimpis | if (if_modified_since is not None |
427 | ad0efdb3 | Ilias Tsitsimpis | and int(meta['modified']) <= if_modified_since): |
428 | bd40abfa | Christos Stavrakakis | raise faults.NotModified('Resource has not been modified') |
429 | 2715ade4 | Sofia Papagiannaki | |
430 | b956618e | Antony Chazapis | if_unmodified_since = request.META.get('HTTP_IF_UNMODIFIED_SINCE')
|
431 | b956618e | Antony Chazapis | if if_unmodified_since is not None: |
432 | b956618e | Antony Chazapis | if_unmodified_since = parse_http_date_safe(if_unmodified_since) |
433 | ad0efdb3 | Ilias Tsitsimpis | if (if_unmodified_since is not None |
434 | ad0efdb3 | Ilias Tsitsimpis | and int(meta['modified']) > if_unmodified_since): |
435 | bd40abfa | Christos Stavrakakis | raise faults.PreconditionFailed('Resource has been modified') |
436 | b956618e | Antony Chazapis | |
437 | 2715ade4 | Sofia Papagiannaki | |
438 | 22dab079 | Antony Chazapis | def validate_matching_preconditions(request, meta): |
439 | 58a6c894 | Antony Chazapis | """Check that the ETag conforms with the preconditions set."""
|
440 | 2715ade4 | Sofia Papagiannaki | |
441 | 133e3fcf | Sofia Papagiannaki | etag = meta['hash'] if not UPDATE_MD5 else meta['checksum'] |
442 | 33b4e4a6 | Antony Chazapis | if not etag: |
443 | 33b4e4a6 | Antony Chazapis | etag = None
|
444 | 2715ade4 | Sofia Papagiannaki | |
445 | 22dab079 | Antony Chazapis | if_match = request.META.get('HTTP_IF_MATCH')
|
446 | a8326bef | Antony Chazapis | if if_match is not None: |
447 | 4a1c29ea | Antony Chazapis | if etag is None: |
448 | bd40abfa | Christos Stavrakakis | raise faults.PreconditionFailed('Resource does not exist') |
449 | ad0efdb3 | Ilias Tsitsimpis | if (if_match != '*' |
450 | ad0efdb3 | Ilias Tsitsimpis | and etag not in [x.lower() for x in parse_etags(if_match)]): |
451 | bd40abfa | Christos Stavrakakis | raise faults.PreconditionFailed('Resource ETag does not match') |
452 | 2715ade4 | Sofia Papagiannaki | |
453 | 22dab079 | Antony Chazapis | if_none_match = request.META.get('HTTP_IF_NONE_MATCH')
|
454 | 22dab079 | Antony Chazapis | if if_none_match is not None: |
455 | a8326bef | Antony Chazapis | # TODO: If this passes, must ignore If-Modified-Since header.
|
456 | 4a1c29ea | Antony Chazapis | if etag is not None: |
457 | 29148653 | Sofia Papagiannaki | if (if_none_match == '*' or etag in [x.lower() for x in |
458 | 29148653 | Sofia Papagiannaki | parse_etags(if_none_match)]): |
459 | a8326bef | Antony Chazapis | # TODO: Continue if an If-Modified-Since header is present.
|
460 | a8326bef | Antony Chazapis | if request.method in ('HEAD', 'GET'): |
461 | bd40abfa | Christos Stavrakakis | raise faults.NotModified('Resource ETag matches') |
462 | ad0efdb3 | Ilias Tsitsimpis | raise faults.PreconditionFailed(
|
463 | ad0efdb3 | Ilias Tsitsimpis | 'Resource exists or ETag matches')
|
464 | 22dab079 | Antony Chazapis | |
465 | 2715ade4 | Sofia Papagiannaki | |
466 | 83dd59c5 | Antony Chazapis | def split_container_object_string(s): |
467 | 6d817842 | Antony Chazapis | if not len(s) > 0 or s[0] != '/': |
468 | 6d817842 | Antony Chazapis | raise ValueError |
469 | 6d817842 | Antony Chazapis | s = s[1:]
|
470 | 8cb45c13 | Antony Chazapis | pos = s.find('/')
|
471 | 22d7b01e | Antony Chazapis | if pos == -1 or pos == len(s) - 1: |
472 | 83dd59c5 | Antony Chazapis | raise ValueError |
473 | 8cb45c13 | Antony Chazapis | return s[:pos], s[(pos + 1):] |
474 | 83dd59c5 | Antony Chazapis | |
475 | 2715ade4 | Sofia Papagiannaki | |
476 | ad0efdb3 | Ilias Tsitsimpis | def copy_or_move_object(request, src_account, src_container, src_name, |
477 | ad0efdb3 | Ilias Tsitsimpis | dest_account, dest_container, dest_name, |
478 | ad0efdb3 | Ilias Tsitsimpis | move=False, delimiter=None): |
479 | 58a6c894 | Antony Chazapis | """Copy or move an object."""
|
480 | 2715ade4 | Sofia Papagiannaki | |
481 | 53cff70c | Antony Chazapis | if 'ignore_content_type' in request.GET and 'CONTENT_TYPE' in request.META: |
482 | 53cff70c | Antony Chazapis | del(request.META['CONTENT_TYPE']) |
483 | 66ce2ca5 | Antony Chazapis | content_type, meta, permissions, public = get_object_headers(request) |
484 | 79bb41b7 | Antony Chazapis | src_version = request.META.get('HTTP_X_SOURCE_VERSION')
|
485 | b956618e | Antony Chazapis | try:
|
486 | b956618e | Antony Chazapis | if move:
|
487 | 2715ade4 | Sofia Papagiannaki | version_id = request.backend.move_object( |
488 | 2715ade4 | Sofia Papagiannaki | request.user_uniq, src_account, src_container, src_name, |
489 | 2715ade4 | Sofia Papagiannaki | dest_account, dest_container, dest_name, |
490 | 2715ade4 | Sofia Papagiannaki | content_type, 'pithos', meta, False, permissions, delimiter) |
491 | b956618e | Antony Chazapis | else:
|
492 | 2715ade4 | Sofia Papagiannaki | version_id = request.backend.copy_object( |
493 | 2715ade4 | Sofia Papagiannaki | request.user_uniq, src_account, src_container, src_name, |
494 | 2715ade4 | Sofia Papagiannaki | dest_account, dest_container, dest_name, |
495 | ad0efdb3 | Ilias Tsitsimpis | content_type, 'pithos', meta, False, permissions, |
496 | ad0efdb3 | Ilias Tsitsimpis | src_version, delimiter) |
497 | cca6c617 | Antony Chazapis | except NotAllowedError:
|
498 | bd40abfa | Christos Stavrakakis | raise faults.Forbidden('Not allowed') |
499 | 7efc9f86 | Sofia Papagiannaki | except (ItemNotExists, VersionNotExists):
|
500 | bd40abfa | Christos Stavrakakis | raise faults.ItemNotFound('Container or object does not exist') |
501 | 3436eeb0 | Antony Chazapis | except ValueError: |
502 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Invalid sharing header') |
503 | dfa2d4ba | Sofia Papagiannaki | except QuotaError, e:
|
504 | bd40abfa | Christos Stavrakakis | raise faults.RequestEntityTooLarge('Quota error: %s' % e) |
505 | e0f916bb | Antony Chazapis | if public is not None: |
506 | e0f916bb | Antony Chazapis | try:
|
507 | ad0efdb3 | Ilias Tsitsimpis | request.backend.update_object_public( |
508 | ad0efdb3 | Ilias Tsitsimpis | request.user_uniq, dest_account, |
509 | ad0efdb3 | Ilias Tsitsimpis | dest_container, dest_name, public) |
510 | e0f916bb | Antony Chazapis | except NotAllowedError:
|
511 | bd40abfa | Christos Stavrakakis | raise faults.Forbidden('Not allowed') |
512 | 7efc9f86 | Sofia Papagiannaki | except ItemNotExists:
|
513 | bd40abfa | Christos Stavrakakis | raise faults.ItemNotFound('Object does not exist') |
514 | 7dd293a0 | Antony Chazapis | return version_id
|
515 | b956618e | Antony Chazapis | |
516 | 2715ade4 | Sofia Papagiannaki | |
517 | 1495b972 | Antony Chazapis | def get_int_parameter(p): |
518 | 83dd59c5 | Antony Chazapis | if p is not None: |
519 | 58a6c894 | Antony Chazapis | try:
|
520 | 83dd59c5 | Antony Chazapis | p = int(p)
|
521 | 58a6c894 | Antony Chazapis | except ValueError: |
522 | 58a6c894 | Antony Chazapis | return None |
523 | 83dd59c5 | Antony Chazapis | if p < 0: |
524 | 58a6c894 | Antony Chazapis | return None |
525 | 83dd59c5 | Antony Chazapis | return p
|
526 | 58a6c894 | Antony Chazapis | |
527 | 2715ade4 | Sofia Papagiannaki | |
528 | 22dab079 | Antony Chazapis | def get_content_length(request): |
529 | 1495b972 | Antony Chazapis | content_length = get_int_parameter(request.META.get('CONTENT_LENGTH'))
|
530 | 1495b972 | Antony Chazapis | if content_length is None: |
531 | bd40abfa | Christos Stavrakakis | raise faults.LengthRequired('Missing or invalid Content-Length header') |
532 | 22dab079 | Antony Chazapis | return content_length
|
533 | 22dab079 | Antony Chazapis | |
534 | 2715ade4 | Sofia Papagiannaki | |
535 | 22dab079 | Antony Chazapis | def get_range(request, size): |
536 | 58a6c894 | Antony Chazapis | """Parse a Range header from the request.
|
537 | 2715ade4 | Sofia Papagiannaki |
|
538 | 22dab079 | Antony Chazapis | Either returns None, when the header is not existent or should be ignored,
|
539 | 22dab079 | Antony Chazapis | or a list of (offset, length) tuples - should be further checked.
|
540 | b956618e | Antony Chazapis | """
|
541 | 2715ade4 | Sofia Papagiannaki | |
542 | 22dab079 | Antony Chazapis | ranges = request.META.get('HTTP_RANGE', '').replace(' ', '') |
543 | 22dab079 | Antony Chazapis | if not ranges.startswith('bytes='): |
544 | b956618e | Antony Chazapis | return None |
545 | 2715ade4 | Sofia Papagiannaki | |
546 | 22dab079 | Antony Chazapis | ret = [] |
547 | 22dab079 | Antony Chazapis | for r in (x.strip() for x in ranges[6:].split(',')): |
548 | 22dab079 | Antony Chazapis | p = re.compile('^(?P<offset>\d*)-(?P<upto>\d*)$')
|
549 | 22dab079 | Antony Chazapis | m = p.match(r) |
550 | 22dab079 | Antony Chazapis | if not m: |
551 | 22dab079 | Antony Chazapis | return None |
552 | 22dab079 | Antony Chazapis | offset = m.group('offset')
|
553 | 22dab079 | Antony Chazapis | upto = m.group('upto')
|
554 | 22dab079 | Antony Chazapis | if offset == '' and upto == '': |
555 | b956618e | Antony Chazapis | return None |
556 | 2715ade4 | Sofia Papagiannaki | |
557 | 22dab079 | Antony Chazapis | if offset != '': |
558 | 22dab079 | Antony Chazapis | offset = int(offset)
|
559 | 22dab079 | Antony Chazapis | if upto != '': |
560 | b956618e | Antony Chazapis | upto = int(upto)
|
561 | 22dab079 | Antony Chazapis | if offset > upto:
|
562 | 22dab079 | Antony Chazapis | return None |
563 | 22dab079 | Antony Chazapis | ret.append((offset, upto - offset + 1))
|
564 | 22dab079 | Antony Chazapis | else:
|
565 | 22dab079 | Antony Chazapis | ret.append((offset, size - offset)) |
566 | b956618e | Antony Chazapis | else:
|
567 | 22dab079 | Antony Chazapis | length = int(upto)
|
568 | 22dab079 | Antony Chazapis | ret.append((size - length, length)) |
569 | 2715ade4 | Sofia Papagiannaki | |
570 | 22dab079 | Antony Chazapis | return ret
|
571 | 22dab079 | Antony Chazapis | |
572 | 2715ade4 | Sofia Papagiannaki | |
573 | 22dab079 | Antony Chazapis | def get_content_range(request): |
574 | 58a6c894 | Antony Chazapis | """Parse a Content-Range header from the request.
|
575 | 2715ade4 | Sofia Papagiannaki |
|
576 | 22dab079 | Antony Chazapis | Either returns None, when the header is not existent or should be ignored,
|
577 | 22dab079 | Antony Chazapis | or an (offset, length, total) tuple - check as length, total may be None.
|
578 | 22dab079 | Antony Chazapis | Returns (None, None, None) if the provided range is '*/*'.
|
579 | 22dab079 | Antony Chazapis | """
|
580 | 2715ade4 | Sofia Papagiannaki | |
581 | 22dab079 | Antony Chazapis | ranges = request.META.get('HTTP_CONTENT_RANGE', '') |
582 | 22dab079 | Antony Chazapis | if not ranges: |
583 | 22dab079 | Antony Chazapis | return None |
584 | 2715ade4 | Sofia Papagiannaki | |
585 | 22dab079 | Antony Chazapis | p = re.compile('^bytes (?P<offset>\d+)-(?P<upto>\d*)/(?P<total>(\d+|\*))$')
|
586 | 22dab079 | Antony Chazapis | m = p.match(ranges) |
587 | 22dab079 | Antony Chazapis | if not m: |
588 | 22dab079 | Antony Chazapis | if ranges == 'bytes */*': |
589 | 22dab079 | Antony Chazapis | return (None, None, None) |
590 | 22dab079 | Antony Chazapis | return None |
591 | 22dab079 | Antony Chazapis | offset = int(m.group('offset')) |
592 | 22dab079 | Antony Chazapis | upto = m.group('upto')
|
593 | 22dab079 | Antony Chazapis | total = m.group('total')
|
594 | 22dab079 | Antony Chazapis | if upto != '': |
595 | 22dab079 | Antony Chazapis | upto = int(upto)
|
596 | b956618e | Antony Chazapis | else:
|
597 | 22dab079 | Antony Chazapis | upto = None
|
598 | 22dab079 | Antony Chazapis | if total != '*': |
599 | 22dab079 | Antony Chazapis | total = int(total)
|
600 | 22dab079 | Antony Chazapis | else:
|
601 | 22dab079 | Antony Chazapis | total = None
|
602 | 70e526a0 | Antony Chazapis | if (upto is not None and offset > upto) or \ |
603 | 70e526a0 | Antony Chazapis | (total is not None and offset >= total) or \ |
604 | 2715ade4 | Sofia Papagiannaki | (total is not None and upto is not None and upto >= total): |
605 | 22dab079 | Antony Chazapis | return None |
606 | 2715ade4 | Sofia Papagiannaki | |
607 | 70e526a0 | Antony Chazapis | if upto is None: |
608 | 22dab079 | Antony Chazapis | length = None
|
609 | 22dab079 | Antony Chazapis | else:
|
610 | 22dab079 | Antony Chazapis | length = upto - offset + 1
|
611 | 22dab079 | Antony Chazapis | return (offset, length, total)
|
612 | b956618e | Antony Chazapis | |
613 | 2715ade4 | Sofia Papagiannaki | |
614 | 3436eeb0 | Antony Chazapis | def get_sharing(request): |
615 | 3436eeb0 | Antony Chazapis | """Parse an X-Object-Sharing header from the request.
|
616 | 2715ade4 | Sofia Papagiannaki |
|
617 | 3436eeb0 | Antony Chazapis | Raises BadRequest on error.
|
618 | 3436eeb0 | Antony Chazapis | """
|
619 | 2715ade4 | Sofia Papagiannaki | |
620 | 3436eeb0 | Antony Chazapis | permissions = request.META.get('HTTP_X_OBJECT_SHARING')
|
621 | cca6c617 | Antony Chazapis | if permissions is None: |
622 | 3436eeb0 | Antony Chazapis | return None |
623 | 2715ade4 | Sofia Papagiannaki | |
624 | 0a7f1671 | Antony Chazapis | # TODO: Document or remove '~' replacing.
|
625 | 0a7f1671 | Antony Chazapis | permissions = permissions.replace('~', '') |
626 | 2715ade4 | Sofia Papagiannaki | |
627 | 3436eeb0 | Antony Chazapis | ret = {} |
628 | cca6c617 | Antony Chazapis | permissions = permissions.replace(' ', '') |
629 | cca6c617 | Antony Chazapis | if permissions == '': |
630 | cca6c617 | Antony Chazapis | return ret
|
631 | cca6c617 | Antony Chazapis | for perm in (x for x in permissions.split(';')): |
632 | cca6c617 | Antony Chazapis | if perm.startswith('read='): |
633 | 2715ade4 | Sofia Papagiannaki | ret['read'] = list(set( |
634 | 2715ade4 | Sofia Papagiannaki | [v.replace(' ', '').lower() for v in perm[5:].split(',')])) |
635 | 02c0c3fa | Antony Chazapis | if '' in ret['read']: |
636 | 02c0c3fa | Antony Chazapis | ret['read'].remove('') |
637 | e8886082 | Antony Chazapis | if '*' in ret['read']: |
638 | e8886082 | Antony Chazapis | ret['read'] = ['*'] |
639 | 3436eeb0 | Antony Chazapis | if len(ret['read']) == 0: |
640 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest(
|
641 | 32454501 | Sofia Papagiannaki | 'Bad X-Object-Sharing header value: invalid length')
|
642 | 3436eeb0 | Antony Chazapis | elif perm.startswith('write='): |
643 | 2715ade4 | Sofia Papagiannaki | ret['write'] = list(set( |
644 | 2715ade4 | Sofia Papagiannaki | [v.replace(' ', '').lower() for v in perm[6:].split(',')])) |
645 | 02c0c3fa | Antony Chazapis | if '' in ret['write']: |
646 | 02c0c3fa | Antony Chazapis | ret['write'].remove('') |
647 | e8886082 | Antony Chazapis | if '*' in ret['write']: |
648 | e8886082 | Antony Chazapis | ret['write'] = ['*'] |
649 | 3436eeb0 | Antony Chazapis | if len(ret['write']) == 0: |
650 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest(
|
651 | 32454501 | Sofia Papagiannaki | 'Bad X-Object-Sharing header value: invalid length')
|
652 | 3436eeb0 | Antony Chazapis | else:
|
653 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest(
|
654 | 32454501 | Sofia Papagiannaki | 'Bad X-Object-Sharing header value: missing prefix')
|
655 | 32454501 | Sofia Papagiannaki | |
656 | 890c2065 | Sofia Papagiannaki | # replace displayname with uuid
|
657 | 469d0997 | Georgios D. Tsoukalas | if TRANSLATE_UUIDS:
|
658 | 469d0997 | Georgios D. Tsoukalas | try:
|
659 | 469d0997 | Georgios D. Tsoukalas | ret['read'] = [replace_permissions_displayname(
|
660 | ad0efdb3 | Ilias Tsitsimpis | getattr(request, 'token', None), x) |
661 | ad0efdb3 | Ilias Tsitsimpis | for x in ret.get('read', [])] |
662 | 469d0997 | Georgios D. Tsoukalas | ret['write'] = [replace_permissions_displayname(
|
663 | ad0efdb3 | Ilias Tsitsimpis | getattr(request, 'token', None), x) |
664 | ad0efdb3 | Ilias Tsitsimpis | for x in ret.get('write', [])] |
665 | 469d0997 | Georgios D. Tsoukalas | except ItemNotExists, e:
|
666 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest(
|
667 | 469d0997 | Georgios D. Tsoukalas | 'Bad X-Object-Sharing header value: unknown account: %s' % e)
|
668 | 2715ade4 | Sofia Papagiannaki | |
669 | 21a8a6ff | Antony Chazapis | # Keep duplicates only in write list.
|
670 | 2715ade4 | Sofia Papagiannaki | dups = [x for x in ret.get( |
671 | 2715ade4 | Sofia Papagiannaki | 'read', []) if x in ret.get('write', []) and x != '*'] |
672 | 21a8a6ff | Antony Chazapis | if dups:
|
673 | 21a8a6ff | Antony Chazapis | for x in dups: |
674 | 21a8a6ff | Antony Chazapis | ret['read'].remove(x)
|
675 | 21a8a6ff | Antony Chazapis | if len(ret['read']) == 0: |
676 | 21a8a6ff | Antony Chazapis | del(ret['read']) |
677 | 2715ade4 | Sofia Papagiannaki | |
678 | 3436eeb0 | Antony Chazapis | return ret
|
679 | 3436eeb0 | Antony Chazapis | |
680 | 2715ade4 | Sofia Papagiannaki | |
681 | 3ab38c43 | Antony Chazapis | def get_public(request): |
682 | 3ab38c43 | Antony Chazapis | """Parse an X-Object-Public header from the request.
|
683 | 2715ade4 | Sofia Papagiannaki |
|
684 | 3ab38c43 | Antony Chazapis | Raises BadRequest on error.
|
685 | 3ab38c43 | Antony Chazapis | """
|
686 | 2715ade4 | Sofia Papagiannaki | |
687 | 3ab38c43 | Antony Chazapis | public = request.META.get('HTTP_X_OBJECT_PUBLIC')
|
688 | 3ab38c43 | Antony Chazapis | if public is None: |
689 | 3ab38c43 | Antony Chazapis | return None |
690 | 2715ade4 | Sofia Papagiannaki | |
691 | 3ab38c43 | Antony Chazapis | public = public.replace(' ', '').lower() |
692 | 3ab38c43 | Antony Chazapis | if public == 'true': |
693 | 3ab38c43 | Antony Chazapis | return True |
694 | 3ab38c43 | Antony Chazapis | elif public == 'false' or public == '': |
695 | 3ab38c43 | Antony Chazapis | return False |
696 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Bad X-Object-Public header value') |
697 | 3ab38c43 | Antony Chazapis | |
698 | 2715ade4 | Sofia Papagiannaki | |
699 | b956618e | Antony Chazapis | def raw_input_socket(request): |
700 | 58a6c894 | Antony Chazapis | """Return the socket for reading the rest of the request."""
|
701 | 2715ade4 | Sofia Papagiannaki | |
702 | b956618e | Antony Chazapis | server_software = request.META.get('SERVER_SOFTWARE')
|
703 | fc1b2a75 | Antony Chazapis | if server_software and server_software.startswith('mod_python'): |
704 | b956618e | Antony Chazapis | return request._req
|
705 | fc1b2a75 | Antony Chazapis | if 'wsgi.input' in request.environ: |
706 | fc1b2a75 | Antony Chazapis | return request.environ['wsgi.input'] |
707 | 08de868d | Antony Chazapis | raise NotImplemented('Unknown server software') |
708 | b956618e | Antony Chazapis | |
709 | 2715ade4 | Sofia Papagiannaki | MAX_UPLOAD_SIZE = 5 * (1024 * 1024 * 1024) # 5GB |
710 | 2715ade4 | Sofia Papagiannaki | |
711 | b956618e | Antony Chazapis | |
712 | c032f34d | Antony Chazapis | def socket_read_iterator(request, length=0, blocksize=4096): |
713 | 29148653 | Sofia Papagiannaki | """Return maximum of blocksize data read from the socket in each iteration
|
714 | 2715ade4 | Sofia Papagiannaki |
|
715 | 22dab079 | Antony Chazapis | Read up to 'length'. If 'length' is negative, will attempt a chunked read.
|
716 | b956618e | Antony Chazapis | The maximum ammount of data read is controlled by MAX_UPLOAD_SIZE.
|
717 | b956618e | Antony Chazapis | """
|
718 | 2715ade4 | Sofia Papagiannaki | |
719 | c032f34d | Antony Chazapis | sock = raw_input_socket(request) |
720 | 2715ade4 | Sofia Papagiannaki | if length < 0: # Chunked transfers |
721 | c032f34d | Antony Chazapis | # Small version (server does the dechunking).
|
722 | ad0efdb3 | Ilias Tsitsimpis | if (request.environ.get('mod_wsgi.input_chunked', None) |
723 | ad0efdb3 | Ilias Tsitsimpis | or request.META['SERVER_SOFTWARE'].startswith('gunicorn')): |
724 | c032f34d | Antony Chazapis | while length < MAX_UPLOAD_SIZE:
|
725 | c032f34d | Antony Chazapis | data = sock.read(blocksize) |
726 | c032f34d | Antony Chazapis | if data == '': |
727 | c032f34d | Antony Chazapis | return
|
728 | c032f34d | Antony Chazapis | yield data
|
729 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Maximum size is reached') |
730 | 2715ade4 | Sofia Papagiannaki | |
731 | c032f34d | Antony Chazapis | # Long version (do the dechunking).
|
732 | 22dab079 | Antony Chazapis | data = ''
|
733 | b956618e | Antony Chazapis | while length < MAX_UPLOAD_SIZE:
|
734 | 22dab079 | Antony Chazapis | # Get chunk size.
|
735 | 22dab079 | Antony Chazapis | if hasattr(sock, 'readline'): |
736 | 22dab079 | Antony Chazapis | chunk_length = sock.readline() |
737 | 22dab079 | Antony Chazapis | else:
|
738 | 22dab079 | Antony Chazapis | chunk_length = ''
|
739 | 22dab079 | Antony Chazapis | while chunk_length[-1:] != '\n': |
740 | 22dab079 | Antony Chazapis | chunk_length += sock.read(1)
|
741 | 22dab079 | Antony Chazapis | chunk_length.strip() |
742 | b956618e | Antony Chazapis | pos = chunk_length.find(';')
|
743 | b956618e | Antony Chazapis | if pos >= 0: |
744 | b956618e | Antony Chazapis | chunk_length = chunk_length[:pos] |
745 | b956618e | Antony Chazapis | try:
|
746 | b956618e | Antony Chazapis | chunk_length = int(chunk_length, 16) |
747 | bd40abfa | Christos Stavrakakis | except Exception: |
748 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Bad chunk size') |
749 | 2715ade4 | Sofia Papagiannaki | # TODO: Change to something more appropriate.
|
750 | 22dab079 | Antony Chazapis | # Check if done.
|
751 | b956618e | Antony Chazapis | if chunk_length == 0: |
752 | 22dab079 | Antony Chazapis | if len(data) > 0: |
753 | 22dab079 | Antony Chazapis | yield data
|
754 | b956618e | Antony Chazapis | return
|
755 | 22dab079 | Antony Chazapis | # Get the actual data.
|
756 | b956618e | Antony Chazapis | while chunk_length > 0: |
757 | 22dab079 | Antony Chazapis | chunk = sock.read(min(chunk_length, blocksize))
|
758 | 22dab079 | Antony Chazapis | chunk_length -= len(chunk)
|
759 | 623a0cf4 | Sofia Papagiannaki | if length > 0: |
760 | 623a0cf4 | Sofia Papagiannaki | length += len(chunk)
|
761 | 22dab079 | Antony Chazapis | data += chunk |
762 | 22dab079 | Antony Chazapis | if len(data) >= blocksize: |
763 | 22dab079 | Antony Chazapis | ret = data[:blocksize] |
764 | 22dab079 | Antony Chazapis | data = data[blocksize:] |
765 | 22dab079 | Antony Chazapis | yield ret
|
766 | 2715ade4 | Sofia Papagiannaki | sock.read(2) # CRLF |
767 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Maximum size is reached') |
768 | b956618e | Antony Chazapis | else:
|
769 | b956618e | Antony Chazapis | if length > MAX_UPLOAD_SIZE:
|
770 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Maximum size is reached') |
771 | b956618e | Antony Chazapis | while length > 0: |
772 | b956618e | Antony Chazapis | data = sock.read(min(length, blocksize))
|
773 | 7b25e082 | Antony Chazapis | if not data: |
774 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest()
|
775 | b956618e | Antony Chazapis | length -= len(data)
|
776 | b956618e | Antony Chazapis | yield data
|
777 | b956618e | Antony Chazapis | |
778 | 2715ade4 | Sofia Papagiannaki | |
779 | 817890f2 | Antony Chazapis | class SaveToBackendHandler(FileUploadHandler): |
780 | 817890f2 | Antony Chazapis | """Handle a file from an HTML form the django way."""
|
781 | 2715ade4 | Sofia Papagiannaki | |
782 | 817890f2 | Antony Chazapis | def __init__(self, request=None): |
783 | 817890f2 | Antony Chazapis | super(SaveToBackendHandler, self).__init__(request) |
784 | 817890f2 | Antony Chazapis | self.backend = request.backend
|
785 | 2715ade4 | Sofia Papagiannaki | |
786 | 817890f2 | Antony Chazapis | def put_data(self, length): |
787 | 817890f2 | Antony Chazapis | if len(self.data) >= length: |
788 | 817890f2 | Antony Chazapis | block = self.data[:length]
|
789 | 817890f2 | Antony Chazapis | self.file.hashmap.append(self.backend.put_block(block)) |
790 | 133e3fcf | Sofia Papagiannaki | self.checksum_compute.update(block)
|
791 | 817890f2 | Antony Chazapis | self.data = self.data[length:] |
792 | 2715ade4 | Sofia Papagiannaki | |
793 | ad0efdb3 | Ilias Tsitsimpis | def new_file(self, field_name, file_name, content_type, |
794 | ad0efdb3 | Ilias Tsitsimpis | content_length, charset=None):
|
795 | 133e3fcf | Sofia Papagiannaki | self.checksum_compute = NoChecksum() if not UPDATE_MD5 else Checksum() |
796 | 817890f2 | Antony Chazapis | self.data = '' |
797 | 2715ade4 | Sofia Papagiannaki | self.file = UploadedFile(
|
798 | 2715ade4 | Sofia Papagiannaki | name=file_name, content_type=content_type, charset=charset) |
799 | 817890f2 | Antony Chazapis | self.file.size = 0 |
800 | 817890f2 | Antony Chazapis | self.file.hashmap = []
|
801 | 2715ade4 | Sofia Papagiannaki | |
802 | 817890f2 | Antony Chazapis | def receive_data_chunk(self, raw_data, start): |
803 | 817890f2 | Antony Chazapis | self.data += raw_data
|
804 | 817890f2 | Antony Chazapis | self.file.size += len(raw_data) |
805 | 817890f2 | Antony Chazapis | self.put_data(self.request.backend.block_size) |
806 | 817890f2 | Antony Chazapis | return None |
807 | 2715ade4 | Sofia Papagiannaki | |
808 | 817890f2 | Antony Chazapis | def file_complete(self, file_size): |
809 | 817890f2 | Antony Chazapis | l = len(self.data) |
810 | 817890f2 | Antony Chazapis | if l > 0: |
811 | 817890f2 | Antony Chazapis | self.put_data(l)
|
812 | 133e3fcf | Sofia Papagiannaki | self.file.etag = self.checksum_compute.hexdigest() |
813 | 817890f2 | Antony Chazapis | return self.file |
814 | 817890f2 | Antony Chazapis | |
815 | 2715ade4 | Sofia Papagiannaki | |
816 | 22dab079 | Antony Chazapis | class ObjectWrapper(object): |
817 | 58a6c894 | Antony Chazapis | """Return the object's data block-per-block in each iteration.
|
818 | 2715ade4 | Sofia Papagiannaki |
|
819 | ad0efdb3 | Ilias Tsitsimpis | Read from the object using the offset and length provided
|
820 | ad0efdb3 | Ilias Tsitsimpis | in each entry of the range list.
|
821 | 22dab079 | Antony Chazapis | """
|
822 | 2715ade4 | Sofia Papagiannaki | |
823 | 39593b2b | Giorgos Verigakis | def __init__(self, backend, ranges, sizes, hashmaps, boundary): |
824 | 39593b2b | Giorgos Verigakis | self.backend = backend
|
825 | 22dab079 | Antony Chazapis | self.ranges = ranges
|
826 | 8cb45c13 | Antony Chazapis | self.sizes = sizes
|
827 | 8cb45c13 | Antony Chazapis | self.hashmaps = hashmaps
|
828 | 22dab079 | Antony Chazapis | self.boundary = boundary
|
829 | 8cb45c13 | Antony Chazapis | self.size = sum(self.sizes) |
830 | 2715ade4 | Sofia Papagiannaki | |
831 | 8cb45c13 | Antony Chazapis | self.file_index = 0 |
832 | 8cb45c13 | Antony Chazapis | self.block_index = 0 |
833 | 8cb45c13 | Antony Chazapis | self.block_hash = -1 |
834 | 22dab079 | Antony Chazapis | self.block = '' |
835 | 2715ade4 | Sofia Papagiannaki | |
836 | 22dab079 | Antony Chazapis | self.range_index = -1 |
837 | 22dab079 | Antony Chazapis | self.offset, self.length = self.ranges[0] |
838 | 2715ade4 | Sofia Papagiannaki | |
839 | 22dab079 | Antony Chazapis | def __iter__(self): |
840 | 22dab079 | Antony Chazapis | return self |
841 | 2715ade4 | Sofia Papagiannaki | |
842 | 22dab079 | Antony Chazapis | def part_iterator(self): |
843 | 22dab079 | Antony Chazapis | if self.length > 0: |
844 | 8cb45c13 | Antony Chazapis | # Get the file for the current offset.
|
845 | 8cb45c13 | Antony Chazapis | file_size = self.sizes[self.file_index] |
846 | 8cb45c13 | Antony Chazapis | while self.offset >= file_size: |
847 | 8cb45c13 | Antony Chazapis | self.offset -= file_size
|
848 | 8cb45c13 | Antony Chazapis | self.file_index += 1 |
849 | 8cb45c13 | Antony Chazapis | file_size = self.sizes[self.file_index] |
850 | 2715ade4 | Sofia Papagiannaki | |
851 | 8cb45c13 | Antony Chazapis | # Get the block for the current position.
|
852 | 39593b2b | Giorgos Verigakis | self.block_index = int(self.offset / self.backend.block_size) |
853 | ad0efdb3 | Ilias Tsitsimpis | if self.block_hash != \ |
854 | ad0efdb3 | Ilias Tsitsimpis | self.hashmaps[self.file_index][self.block_index]: |
855 | 2715ade4 | Sofia Papagiannaki | self.block_hash = self.hashmaps[ |
856 | 2715ade4 | Sofia Papagiannaki | self.file_index][self.block_index] |
857 | 22dab079 | Antony Chazapis | try:
|
858 | 39593b2b | Giorgos Verigakis | self.block = self.backend.get_block(self.block_hash) |
859 | 7efc9f86 | Sofia Papagiannaki | except ItemNotExists:
|
860 | bd40abfa | Christos Stavrakakis | raise faults.ItemNotFound('Block does not exist') |
861 | 2715ade4 | Sofia Papagiannaki | |
862 | 22dab079 | Antony Chazapis | # Get the data from the block.
|
863 | 39593b2b | Giorgos Verigakis | bo = self.offset % self.backend.block_size |
864 | c9865fe1 | Antony Chazapis | bs = self.backend.block_size
|
865 | 45cf0bc8 | Antony Chazapis | if (self.block_index == len(self.hashmaps[self.file_index]) - 1 and |
866 | 2715ade4 | Sofia Papagiannaki | self.sizes[self.file_index] % self.backend.block_size): |
867 | c9865fe1 | Antony Chazapis | bs = self.sizes[self.file_index] % self.backend.block_size |
868 | c9865fe1 | Antony Chazapis | bl = min(self.length, bs - bo) |
869 | 22dab079 | Antony Chazapis | data = self.block[bo:bo + bl]
|
870 | 22dab079 | Antony Chazapis | self.offset += bl
|
871 | 22dab079 | Antony Chazapis | self.length -= bl
|
872 | 22dab079 | Antony Chazapis | return data
|
873 | 22dab079 | Antony Chazapis | else:
|
874 | 22dab079 | Antony Chazapis | raise StopIteration |
875 | 2715ade4 | Sofia Papagiannaki | |
876 | 22dab079 | Antony Chazapis | def next(self): |
877 | 22dab079 | Antony Chazapis | if len(self.ranges) == 1: |
878 | 22dab079 | Antony Chazapis | return self.part_iterator() |
879 | 22dab079 | Antony Chazapis | if self.range_index == len(self.ranges): |
880 | 22dab079 | Antony Chazapis | raise StopIteration |
881 | 22dab079 | Antony Chazapis | try:
|
882 | 22dab079 | Antony Chazapis | if self.range_index == -1: |
883 | 22dab079 | Antony Chazapis | raise StopIteration |
884 | 22dab079 | Antony Chazapis | return self.part_iterator() |
885 | 22dab079 | Antony Chazapis | except StopIteration: |
886 | 22dab079 | Antony Chazapis | self.range_index += 1 |
887 | 22dab079 | Antony Chazapis | out = [] |
888 | 22dab079 | Antony Chazapis | if self.range_index < len(self.ranges): |
889 | 22dab079 | Antony Chazapis | # Part header.
|
890 | 22dab079 | Antony Chazapis | self.offset, self.length = self.ranges[self.range_index] |
891 | 8cb45c13 | Antony Chazapis | self.file_index = 0 |
892 | 22dab079 | Antony Chazapis | if self.range_index > 0: |
893 | 22dab079 | Antony Chazapis | out.append('')
|
894 | 22dab079 | Antony Chazapis | out.append('--' + self.boundary) |
895 | 2715ade4 | Sofia Papagiannaki | out.append('Content-Range: bytes %d-%d/%d' % (
|
896 | 2715ade4 | Sofia Papagiannaki | self.offset, self.offset + self.length - 1, self.size)) |
897 | 22dab079 | Antony Chazapis | out.append('Content-Transfer-Encoding: binary')
|
898 | 22dab079 | Antony Chazapis | out.append('')
|
899 | 22dab079 | Antony Chazapis | out.append('')
|
900 | 22dab079 | Antony Chazapis | return '\r\n'.join(out) |
901 | 22dab079 | Antony Chazapis | else:
|
902 | 22dab079 | Antony Chazapis | # Footer.
|
903 | 22dab079 | Antony Chazapis | out.append('')
|
904 | 22dab079 | Antony Chazapis | out.append('--' + self.boundary + '--') |
905 | 22dab079 | Antony Chazapis | out.append('')
|
906 | 22dab079 | Antony Chazapis | return '\r\n'.join(out) |
907 | 22dab079 | Antony Chazapis | |
908 | 2715ade4 | Sofia Papagiannaki | |
909 | 8cb45c13 | Antony Chazapis | def object_data_response(request, sizes, hashmaps, meta, public=False): |
910 | 7bef5750 | Antony Chazapis | """Get the HttpResponse object for replying with the object's data."""
|
911 | 2715ade4 | Sofia Papagiannaki | |
912 | 7bef5750 | Antony Chazapis | # Range handling.
|
913 | 8cb45c13 | Antony Chazapis | size = sum(sizes)
|
914 | 7bef5750 | Antony Chazapis | ranges = get_range(request, size) |
915 | 7bef5750 | Antony Chazapis | if ranges is None: |
916 | 7bef5750 | Antony Chazapis | ranges = [(0, size)]
|
917 | 7bef5750 | Antony Chazapis | ret = 200
|
918 | 7bef5750 | Antony Chazapis | else:
|
919 | 7bef5750 | Antony Chazapis | check = [True for offset, length in ranges if |
920 | 2715ade4 | Sofia Papagiannaki | length <= 0 or length > size or |
921 | 2715ade4 | Sofia Papagiannaki | offset < 0 or offset >= size or |
922 | 2715ade4 | Sofia Papagiannaki | offset + length > size] |
923 | 7bef5750 | Antony Chazapis | if len(check) > 0: |
924 | ad0efdb3 | Ilias Tsitsimpis | raise faults.RangeNotSatisfiable(
|
925 | ad0efdb3 | Ilias Tsitsimpis | 'Requested range exceeds object limits')
|
926 | 7bef5750 | Antony Chazapis | ret = 206
|
927 | 15d465b8 | Antony Chazapis | if_range = request.META.get('HTTP_IF_RANGE')
|
928 | 15d465b8 | Antony Chazapis | if if_range:
|
929 | 6d1e6dce | Sofia Papagiannaki | try:
|
930 | 15d465b8 | Antony Chazapis | # Modification time has passed instead.
|
931 | 6d1e6dce | Sofia Papagiannaki | last_modified = parse_http_date(if_range) |
932 | 6d1e6dce | Sofia Papagiannaki | if last_modified != meta['modified']: |
933 | 6d1e6dce | Sofia Papagiannaki | ranges = [(0, size)]
|
934 | 6d1e6dce | Sofia Papagiannaki | ret = 200
|
935 | 6d1e6dce | Sofia Papagiannaki | except ValueError: |
936 | 33b4e4a6 | Antony Chazapis | if if_range != meta['checksum']: |
937 | 6d1e6dce | Sofia Papagiannaki | ranges = [(0, size)]
|
938 | 6d1e6dce | Sofia Papagiannaki | ret = 200
|
939 | 2715ade4 | Sofia Papagiannaki | |
940 | 7bef5750 | Antony Chazapis | if ret == 206 and len(ranges) > 1: |
941 | 7bef5750 | Antony Chazapis | boundary = uuid.uuid4().hex |
942 | 7bef5750 | Antony Chazapis | else:
|
943 | 7bef5750 | Antony Chazapis | boundary = ''
|
944 | 39593b2b | Giorgos Verigakis | wrapper = ObjectWrapper(request.backend, ranges, sizes, hashmaps, boundary) |
945 | 7bef5750 | Antony Chazapis | response = HttpResponse(wrapper, status=ret) |
946 | 469d0997 | Georgios D. Tsoukalas | put_object_headers( |
947 | ad0efdb3 | Ilias Tsitsimpis | response, meta, restricted=public, |
948 | ad0efdb3 | Ilias Tsitsimpis | token=getattr(request, 'token', None)) |
949 | 7bef5750 | Antony Chazapis | if ret == 206: |
950 | 7bef5750 | Antony Chazapis | if len(ranges) == 1: |
951 | 7bef5750 | Antony Chazapis | offset, length = ranges[0]
|
952 | 2715ade4 | Sofia Papagiannaki | response[ |
953 | 2715ade4 | Sofia Papagiannaki | 'Content-Length'] = length # Update with the correct length. |
954 | 2715ade4 | Sofia Papagiannaki | response['Content-Range'] = 'bytes %d-%d/%d' % ( |
955 | 2715ade4 | Sofia Papagiannaki | offset, offset + length - 1, size)
|
956 | 7bef5750 | Antony Chazapis | else:
|
957 | 7bef5750 | Antony Chazapis | del(response['Content-Length']) |
958 | 2715ade4 | Sofia Papagiannaki | response['Content-Type'] = 'multipart/byteranges; boundary=%s' % ( |
959 | 2715ade4 | Sofia Papagiannaki | boundary,) |
960 | 7bef5750 | Antony Chazapis | return response
|
961 | 7bef5750 | Antony Chazapis | |
962 | 2715ade4 | Sofia Papagiannaki | |
963 | 39593b2b | Giorgos Verigakis | def put_object_block(request, hashmap, data, offset): |
964 | cb146cf9 | Antony Chazapis | """Put one block of data at the given offset."""
|
965 | 2715ade4 | Sofia Papagiannaki | |
966 | 39593b2b | Giorgos Verigakis | bi = int(offset / request.backend.block_size)
|
967 | 39593b2b | Giorgos Verigakis | bo = offset % request.backend.block_size |
968 | 39593b2b | Giorgos Verigakis | bl = min(len(data), request.backend.block_size - bo) |
969 | cb146cf9 | Antony Chazapis | if bi < len(hashmap): |
970 | fac5f6be | Chrysostomos Nanakos | try:
|
971 | fac5f6be | Chrysostomos Nanakos | hashmap[bi] = request.backend.update_block(hashmap[bi], |
972 | fac5f6be | Chrysostomos Nanakos | data[:bl], bo) |
973 | fac5f6be | Chrysostomos Nanakos | except IllegalOperationError, e:
|
974 | 657f330d | Chrysostomos Nanakos | raise faults.Forbidden(e[0]) |
975 | cb146cf9 | Antony Chazapis | else:
|
976 | 39593b2b | Giorgos Verigakis | hashmap.append(request.backend.put_block(('\x00' * bo) + data[:bl]))
|
977 | 2715ade4 | Sofia Papagiannaki | return bl # Return ammount of data written. |
978 | 2715ade4 | Sofia Papagiannaki | |
979 | cb146cf9 | Antony Chazapis | |
980 | b3155065 | Antony Chazapis | def hashmap_md5(backend, hashmap, size): |
981 | cddcf432 | chazapis | """Produce the MD5 sum from the data in the hashmap."""
|
982 | 2715ade4 | Sofia Papagiannaki | |
983 | ad0efdb3 | Ilias Tsitsimpis | # TODO: Search backend for the MD5 of another object
|
984 | ad0efdb3 | Ilias Tsitsimpis | # with the same hashmap and size...
|
985 | cddcf432 | chazapis | md5 = hashlib.md5() |
986 | b3155065 | Antony Chazapis | bs = backend.block_size |
987 | cddcf432 | chazapis | for bi, hash in enumerate(hashmap): |
988 | 2715ade4 | Sofia Papagiannaki | data = backend.get_block(hash) # Blocks come in padded. |
989 | cddcf432 | chazapis | if bi == len(hashmap) - 1: |
990 | c9865fe1 | Antony Chazapis | data = data[:size % bs] |
991 | c9865fe1 | Antony Chazapis | md5.update(data) |
992 | cddcf432 | chazapis | return md5.hexdigest().lower()
|
993 | 49133392 | Antony Chazapis | |
994 | 2715ade4 | Sofia Papagiannaki | |
995 | af7bb62f | Antony Chazapis | def simple_list_response(request, l): |
996 | 6b6b6c1e | Antony Chazapis | if request.serialization == 'text': |
997 | 6b6b6c1e | Antony Chazapis | return '\n'.join(l) + '\n' |
998 | 6b6b6c1e | Antony Chazapis | if request.serialization == 'xml': |
999 | af7bb62f | Antony Chazapis | return render_to_string('items.xml', {'items': l}) |
1000 | 6b6b6c1e | Antony Chazapis | if request.serialization == 'json': |
1001 | 6b6b6c1e | Antony Chazapis | return json.dumps(l)
|
1002 | 6b6b6c1e | Antony Chazapis | |
1003 | 35d42381 | Vangelis Koukis | |
1004 | edb7875c | Christos Stavrakakis | from pithos.backends.util import PithosBackendPool |
1005 | 61c5b615 | Sofia Papagiannaki | |
1006 | 47462eda | Filippos Giannakos | if RADOS_STORAGE:
|
1007 | ad0efdb3 | Ilias Tsitsimpis | BLOCK_PARAMS = {'mappool': RADOS_POOL_MAPS,
|
1008 | ad0efdb3 | Ilias Tsitsimpis | 'blockpool': RADOS_POOL_BLOCKS, }
|
1009 | 47462eda | Filippos Giannakos | else:
|
1010 | ad0efdb3 | Ilias Tsitsimpis | BLOCK_PARAMS = {'mappool': None, |
1011 | ad0efdb3 | Ilias Tsitsimpis | 'blockpool': None, } |
1012 | 35d42381 | Vangelis Koukis | |
1013 | 74cbb94a | Sofia Papagiannaki | BACKEND_KWARGS = dict(
|
1014 | 74cbb94a | Sofia Papagiannaki | db_module=BACKEND_DB_MODULE, |
1015 | 74cbb94a | Sofia Papagiannaki | db_connection=BACKEND_DB_CONNECTION, |
1016 | 74cbb94a | Sofia Papagiannaki | block_module=BACKEND_BLOCK_MODULE, |
1017 | 74cbb94a | Sofia Papagiannaki | block_path=BACKEND_BLOCK_PATH, |
1018 | 74cbb94a | Sofia Papagiannaki | block_umask=BACKEND_BLOCK_UMASK, |
1019 | 74cbb94a | Sofia Papagiannaki | block_size=BACKEND_BLOCK_SIZE, |
1020 | 74cbb94a | Sofia Papagiannaki | hash_algorithm=BACKEND_HASH_ALGORITHM, |
1021 | 74cbb94a | Sofia Papagiannaki | queue_module=BACKEND_QUEUE_MODULE, |
1022 | 74cbb94a | Sofia Papagiannaki | queue_hosts=BACKEND_QUEUE_HOSTS, |
1023 | 74cbb94a | Sofia Papagiannaki | queue_exchange=BACKEND_QUEUE_EXCHANGE, |
1024 | f759041f | Ilias Tsitsimpis | astakos_auth_url=ASTAKOS_AUTH_URL, |
1025 | 74cbb94a | Sofia Papagiannaki | service_token=SERVICE_TOKEN, |
1026 | 74cbb94a | Sofia Papagiannaki | astakosclient_poolsize=ASTAKOSCLIENT_POOLSIZE, |
1027 | 74cbb94a | Sofia Papagiannaki | free_versioning=BACKEND_FREE_VERSIONING, |
1028 | 74cbb94a | Sofia Papagiannaki | block_params=BLOCK_PARAMS, |
1029 | 74cbb94a | Sofia Papagiannaki | public_url_security=PUBLIC_URL_SECURITY, |
1030 | 74cbb94a | Sofia Papagiannaki | public_url_alphabet=PUBLIC_URL_ALPHABET, |
1031 | 74cbb94a | Sofia Papagiannaki | account_quota_policy=BACKEND_ACCOUNT_QUOTA, |
1032 | 74cbb94a | Sofia Papagiannaki | container_quota_policy=BACKEND_CONTAINER_QUOTA, |
1033 | 74cbb94a | Sofia Papagiannaki | container_versioning_policy=BACKEND_VERSIONING) |
1034 | 74cbb94a | Sofia Papagiannaki | |
1035 | 74cbb94a | Sofia Papagiannaki | _pithos_backend_pool = PithosBackendPool(size=BACKEND_POOL_SIZE, |
1036 | 74cbb94a | Sofia Papagiannaki | **BACKEND_KWARGS) |
1037 | 35d42381 | Vangelis Koukis | |
1038 | 65bbcd43 | Christos Stavrakakis | |
1039 | 35d42381 | Vangelis Koukis | def get_backend(): |
1040 | 74cbb94a | Sofia Papagiannaki | if BACKEND_POOL_ENABLED:
|
1041 | 74cbb94a | Sofia Papagiannaki | backend = _pithos_backend_pool.pool_get() |
1042 | 74cbb94a | Sofia Papagiannaki | else:
|
1043 | 74cbb94a | Sofia Papagiannaki | backend = connect_backend(**BACKEND_KWARGS) |
1044 | 74cbb94a | Sofia Papagiannaki | backend.serials = [] |
1045 | f77b1da9 | Stratos Psomadakis | backend.messages = [] |
1046 | edb7875c | Christos Stavrakakis | return backend
|
1047 | 35d42381 | Vangelis Koukis | |
1048 | 35d42381 | Vangelis Koukis | |
1049 | 9fefc052 | Antony Chazapis | def update_request_headers(request): |
1050 | 9fefc052 | Antony Chazapis | # Handle URL-encoded keys and values.
|
1051 | 2715ade4 | Sofia Papagiannaki | meta = dict([(
|
1052 | 2715ade4 | Sofia Papagiannaki | k, v) for k, v in request.META.iteritems() if k.startswith('HTTP_')]) |
1053 | 88283e9e | Antony Chazapis | for k, v in meta.iteritems(): |
1054 | 88283e9e | Antony Chazapis | try:
|
1055 | 88283e9e | Antony Chazapis | k.decode('ascii')
|
1056 | 88283e9e | Antony Chazapis | v.decode('ascii')
|
1057 | 88283e9e | Antony Chazapis | except UnicodeDecodeError: |
1058 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Bad character in headers.') |
1059 | 88283e9e | Antony Chazapis | if '%' in k or '%' in v: |
1060 | 88283e9e | Antony Chazapis | del(request.META[k])
|
1061 | 2715ade4 | Sofia Papagiannaki | request.META[unquote(k)] = smart_unicode(unquote( |
1062 | 2715ade4 | Sofia Papagiannaki | v), strings_only=True)
|
1063 | 2715ade4 | Sofia Papagiannaki | |
1064 | 9fefc052 | Antony Chazapis | |
1065 | b956618e | Antony Chazapis | def update_response_headers(request, response): |
1066 | 9fefc052 | Antony Chazapis | # URL-encode unicode in headers.
|
1067 | 9fefc052 | Antony Chazapis | meta = response.items() |
1068 | 9fefc052 | Antony Chazapis | for k, v in meta: |
1069 | 88283e9e | Antony Chazapis | if (k.startswith('X-Account-') or k.startswith('X-Container-') or |
1070 | 2715ade4 | Sofia Papagiannaki | k.startswith('X-Object-') or k.startswith('Content-')): |
1071 | 9fefc052 | Antony Chazapis | del(response[k])
|
1072 | 88283e9e | Antony Chazapis | response[quote(k)] = quote(v, safe='/=,:@; ')
|
1073 | b956618e | Antony Chazapis | |
1074 | 2715ade4 | Sofia Papagiannaki | |
1075 | b90584d0 | Sofia Papagiannaki | def api_method(http_method=None, token_required=True, user_required=True, |
1076 | b90584d0 | Sofia Papagiannaki | logger=None, format_allowed=False, serializations=None, |
1077 | b90584d0 | Sofia Papagiannaki | strict_serlization=False, lock_container_path=False): |
1078 | d823a562 | Kostas Papadimitriou | serializations = serializations or ['json', 'xml'] |
1079 | cc62d2ab | Sofia Papagiannaki | |
1080 | b956618e | Antony Chazapis | def decorator(func): |
1081 | d630c78b | Sofia Papagiannaki | @api.api_method(http_method=http_method, token_required=token_required,
|
1082 | d630c78b | Sofia Papagiannaki | user_required=user_required, |
1083 | 47ef53d5 | Christos Stavrakakis | logger=logger, format_allowed=format_allowed, |
1084 | f759041f | Ilias Tsitsimpis | astakos_auth_url=ASTAKOS_AUTH_URL, |
1085 | b5aeeb2f | Kostas Papadimitriou | serializations=serializations, |
1086 | b5aeeb2f | Kostas Papadimitriou | strict_serlization=strict_serlization) |
1087 | b956618e | Antony Chazapis | @wraps(func)
|
1088 | b956618e | Antony Chazapis | def wrapper(request, *args, **kwargs): |
1089 | 65bbcd43 | Christos Stavrakakis | # The args variable may contain up to (account, container, object).
|
1090 | 65bbcd43 | Christos Stavrakakis | if len(args) > 1 and len(args[1]) > 256: |
1091 | 65bbcd43 | Christos Stavrakakis | raise faults.BadRequest("Container name too large") |
1092 | 65bbcd43 | Christos Stavrakakis | if len(args) > 2 and len(args[2]) > 1024: |
1093 | 65bbcd43 | Christos Stavrakakis | raise faults.BadRequest('Object name too large.') |
1094 | 2715ade4 | Sofia Papagiannaki | |
1095 | d47565d8 | Buildbot | success_status = False
|
1096 | d47565d8 | Buildbot | try:
|
1097 | 65bbcd43 | Christos Stavrakakis | # Add a PithosBackend as attribute of the request object
|
1098 | d47565d8 | Buildbot | request.backend = get_backend() |
1099 | d47565d8 | Buildbot | request.backend.pre_exec(lock_container_path) |
1100 | 9f135224 | Sofia Papagiannaki | |
1101 | 65bbcd43 | Christos Stavrakakis | # Many API method expect thet X-Auth-Token in request,token
|
1102 | 65bbcd43 | Christos Stavrakakis | request.token = request.x_auth_token |
1103 | 65bbcd43 | Christos Stavrakakis | update_request_headers(request) |
1104 | b956618e | Antony Chazapis | response = func(request, *args, **kwargs) |
1105 | b956618e | Antony Chazapis | update_response_headers(request, response) |
1106 | 9f135224 | Sofia Papagiannaki | |
1107 | d47565d8 | Buildbot | success_status = True
|
1108 | b956618e | Antony Chazapis | return response
|
1109 | d47565d8 | Buildbot | finally:
|
1110 | d47565d8 | Buildbot | # Always close PithosBackend connection
|
1111 | d47565d8 | Buildbot | if getattr(request, "backend", None) is not None: |
1112 | d47565d8 | Buildbot | request.backend.post_exec(success_status) |
1113 | d47565d8 | Buildbot | request.backend.close() |
1114 | b956618e | Antony Chazapis | return wrapper
|
1115 | b956618e | Antony Chazapis | return decorator
|
1116 | 63de12cf | Sofia Papagiannaki | |
1117 | 63de12cf | Sofia Papagiannaki | |
1118 | 46662ee6 | Kostas Papadimitriou | def restrict_to_host(host=None): |
1119 | 46662ee6 | Kostas Papadimitriou | """
|
1120 | 46662ee6 | Kostas Papadimitriou | View decorator which restricts wrapped view to be accessed only under the
|
1121 | 46662ee6 | Kostas Papadimitriou | host set. If an invalid host is identified and request HTTP method is one
|
1122 | 46662ee6 | Kostas Papadimitriou | of ``GET``, ``HOST``, the decorator will return a redirect response using a
|
1123 | 46662ee6 | Kostas Papadimitriou | clone of the request with host replaced to the one the restriction applies
|
1124 | 46662ee6 | Kostas Papadimitriou | to.
|
1125 | 46662ee6 | Kostas Papadimitriou |
|
1126 | 46662ee6 | Kostas Papadimitriou | e.g.
|
1127 | 46662ee6 | Kostas Papadimitriou | @restrict_to_host('files.example.com')
|
1128 | 46662ee6 | Kostas Papadimitriou | my_restricted_view(request, path):
|
1129 | 46662ee6 | Kostas Papadimitriou | return HttpResponse(file(path).read())
|
1130 | 46662ee6 | Kostas Papadimitriou |
|
1131 | 46662ee6 | Kostas Papadimitriou | A get to ``https://api.example.com/my_restricted_view/file_path/?param=1``
|
1132 | 46662ee6 | Kostas Papadimitriou | will return a redirect response with Location header set to
|
1133 | 46662ee6 | Kostas Papadimitriou | ``https://files.example.com/my_restricted_view/file_path/?param=1``.
|
1134 | 46662ee6 | Kostas Papadimitriou |
|
1135 | 46662ee6 | Kostas Papadimitriou | If host is set to ``None`` no restriction will be applied.
|
1136 | 46662ee6 | Kostas Papadimitriou | """
|
1137 | 46662ee6 | Kostas Papadimitriou | def decorator(func): |
1138 | 46662ee6 | Kostas Papadimitriou | # skip decoration if no host is set
|
1139 | 46662ee6 | Kostas Papadimitriou | if not host: |
1140 | 46662ee6 | Kostas Papadimitriou | return func
|
1141 | 46662ee6 | Kostas Papadimitriou | |
1142 | 46662ee6 | Kostas Papadimitriou | @wraps(func)
|
1143 | 46662ee6 | Kostas Papadimitriou | def wrapper(request, *args, **kwargs): |
1144 | 46662ee6 | Kostas Papadimitriou | request_host = request.get_host() |
1145 | 46662ee6 | Kostas Papadimitriou | if host != request_host:
|
1146 | 46662ee6 | Kostas Papadimitriou | proto = 'https' if request.is_secure() else 'http' |
1147 | 46662ee6 | Kostas Papadimitriou | if request.method in ['GET', 'HEAD']: |
1148 | 46662ee6 | Kostas Papadimitriou | full_path = request.get_full_path() |
1149 | 46662ee6 | Kostas Papadimitriou | redirect_uri = "%s://%s%s" % (proto, host, full_path)
|
1150 | 46662ee6 | Kostas Papadimitriou | return HttpResponseRedirect(redirect_uri)
|
1151 | 46662ee6 | Kostas Papadimitriou | else:
|
1152 | 46662ee6 | Kostas Papadimitriou | raise PermissionDenied
|
1153 | 46662ee6 | Kostas Papadimitriou | return func(request, *args, **kwargs)
|
1154 | 46662ee6 | Kostas Papadimitriou | return wrapper
|
1155 | 46662ee6 | Kostas Papadimitriou | return decorator
|
1156 | 46662ee6 | Kostas Papadimitriou | |
1157 | 46662ee6 | Kostas Papadimitriou | |
1158 | 63de12cf | Sofia Papagiannaki | def view_method(): |
1159 | 63de12cf | Sofia Papagiannaki | """Decorator function for views."""
|
1160 | 63de12cf | Sofia Papagiannaki | |
1161 | 63de12cf | Sofia Papagiannaki | def decorator(func): |
1162 | 4bf0ab85 | Sofia Papagiannaki | @restrict_to_host(UNSAFE_DOMAIN)
|
1163 | 63de12cf | Sofia Papagiannaki | @wraps(func)
|
1164 | 63de12cf | Sofia Papagiannaki | def wrapper(request, *args, **kwargs): |
1165 | 46662ee6 | Kostas Papadimitriou | if request.method not in ['GET', 'HEAD']: |
1166 | 46662ee6 | Kostas Papadimitriou | return HttpResponseNotAllowed(['GET', 'HEAD']) |
1167 | 5ae33f6c | Sofia Papagiannaki | |
1168 | 8f2eb016 | Sofia Papagiannaki | try:
|
1169 | 8f2eb016 | Sofia Papagiannaki | access_token = request.GET.get('access_token')
|
1170 | ae73cdc0 | Sofia Papagiannaki | requested_resource = text.uenc(request.path.split(VIEW_PREFIX, |
1171 | ae73cdc0 | Sofia Papagiannaki | 2)[-1]) |
1172 | 8f2eb016 | Sofia Papagiannaki | astakos = AstakosClient(SERVICE_TOKEN, ASTAKOS_AUTH_URL, |
1173 | 8f2eb016 | Sofia Papagiannaki | retry=2, use_pool=True, |
1174 | 8f2eb016 | Sofia Papagiannaki | logger=logger) |
1175 | 8f2eb016 | Sofia Papagiannaki | if access_token is not None: |
1176 | 5ae33f6c | Sofia Papagiannaki | # authenticate using the short-term access token
|
1177 | b32183c6 | Sofia Papagiannaki | try:
|
1178 | b32183c6 | Sofia Papagiannaki | request.user = astakos.validate_token( |
1179 | b32183c6 | Sofia Papagiannaki | access_token, requested_resource) |
1180 | 256213e4 | Sofia Papagiannaki | except AstakosClientException:
|
1181 | b32183c6 | Sofia Papagiannaki | return HttpResponseRedirect(request.path)
|
1182 | 8f2eb016 | Sofia Papagiannaki | request.user_uniq = request.user["access"]["user"]["id"] |
1183 | 8f2eb016 | Sofia Papagiannaki | |
1184 | 5ae33f6c | Sofia Papagiannaki | _func = api_method(token_required=False,
|
1185 | 5ae33f6c | Sofia Papagiannaki | user_required=False)(func)
|
1186 | 5ae33f6c | Sofia Papagiannaki | response = _func(request, *args, **kwargs) |
1187 | 8f2eb016 | Sofia Papagiannaki | if response.status_code == 404: |
1188 | 8f2eb016 | Sofia Papagiannaki | raise Http404
|
1189 | b32183c6 | Sofia Papagiannaki | elif response.status_code == 403: |
1190 | 8f2eb016 | Sofia Papagiannaki | raise PermissionDenied
|
1191 | 8f2eb016 | Sofia Papagiannaki | return response
|
1192 | 8f2eb016 | Sofia Papagiannaki | |
1193 | fe7d0186 | Sofia Papagiannaki | client_id, client_secret = OAUTH2_CLIENT_CREDENTIALS |
1194 | 8f2eb016 | Sofia Papagiannaki | # TODO: check if client credentials are not set
|
1195 | 8f2eb016 | Sofia Papagiannaki | authorization_code = request.GET.get('code')
|
1196 | 8f2eb016 | Sofia Papagiannaki | if authorization_code is None: |
1197 | 5ae33f6c | Sofia Papagiannaki | # request authorization code
|
1198 | 8f2eb016 | Sofia Papagiannaki | params = {'response_type': 'code', |
1199 | 8f2eb016 | Sofia Papagiannaki | 'client_id': client_id,
|
1200 | 8f2eb016 | Sofia Papagiannaki | 'redirect_uri':
|
1201 | 8f2eb016 | Sofia Papagiannaki | request.build_absolute_uri(request.path), |
1202 | 5ae33f6c | Sofia Papagiannaki | 'state': '', # TODO include state for security |
1203 | ae73cdc0 | Sofia Papagiannaki | 'scope': requested_resource}
|
1204 | 8f2eb016 | Sofia Papagiannaki | return HttpResponseRedirect('%s?%s' % |
1205 | fe7d0186 | Sofia Papagiannaki | (join_urls(astakos.oauth2_url, |
1206 | fcd85f90 | Sofia Papagiannaki | 'auth'),
|
1207 | 8f2eb016 | Sofia Papagiannaki | urlencode(params))) |
1208 | 8f2eb016 | Sofia Papagiannaki | else:
|
1209 | e7f0ec5e | Sofia Papagiannaki | # request short-term access token
|
1210 | e7f0ec5e | Sofia Papagiannaki | redirect_uri = request.build_absolute_uri(request.path) |
1211 | 5ae33f6c | Sofia Papagiannaki | data = astakos.get_token('authorization_code',
|
1212 | fe7d0186 | Sofia Papagiannaki | *OAUTH2_CLIENT_CREDENTIALS, |
1213 | 8f2eb016 | Sofia Papagiannaki | redirect_uri=redirect_uri, |
1214 | 8f2eb016 | Sofia Papagiannaki | scope=requested_resource, |
1215 | 8f2eb016 | Sofia Papagiannaki | code=authorization_code) |
1216 | 5ae33f6c | Sofia Papagiannaki | params = {'access_token': data.get('access_token', '')} |
1217 | 5ae33f6c | Sofia Papagiannaki | return HttpResponseRedirect('%s?%s' % (redirect_uri, |
1218 | 5ae33f6c | Sofia Papagiannaki | urlencode(params))) |
1219 | 5ae33f6c | Sofia Papagiannaki | except AstakosClientException, err:
|
1220 | 5ae33f6c | Sofia Papagiannaki | logger.exception(err) |
1221 | 8f2eb016 | Sofia Papagiannaki | raise PermissionDenied
|
1222 | 63de12cf | Sofia Papagiannaki | return wrapper
|
1223 | 63de12cf | Sofia Papagiannaki | return decorator
|
1224 | 133e3fcf | Sofia Papagiannaki | |
1225 | 133e3fcf | Sofia Papagiannaki | |
1226 | 133e3fcf | Sofia Papagiannaki | class Checksum: |
1227 | 133e3fcf | Sofia Papagiannaki | def __init__(self): |
1228 | 133e3fcf | Sofia Papagiannaki | self.md5 = hashlib.md5()
|
1229 | 133e3fcf | Sofia Papagiannaki | |
1230 | 133e3fcf | Sofia Papagiannaki | def update(self, data): |
1231 | 133e3fcf | Sofia Papagiannaki | self.md5.update(data)
|
1232 | 133e3fcf | Sofia Papagiannaki | |
1233 | 133e3fcf | Sofia Papagiannaki | def hexdigest(self): |
1234 | 133e3fcf | Sofia Papagiannaki | return self.md5.hexdigest().lower() |
1235 | 133e3fcf | Sofia Papagiannaki | |
1236 | cc62d2ab | Sofia Papagiannaki | |
1237 | 133e3fcf | Sofia Papagiannaki | class NoChecksum: |
1238 | 133e3fcf | Sofia Papagiannaki | def update(self, data): |
1239 | 133e3fcf | Sofia Papagiannaki | pass
|
1240 | 133e3fcf | Sofia Papagiannaki | |
1241 | 133e3fcf | Sofia Papagiannaki | def hexdigest(self): |
1242 | 133e3fcf | Sofia Papagiannaki | return '' |