root / snf-pithos-app / pithos / api / util.py @ 6dd0fc7c
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1 | 2e662088 | Antony Chazapis | # Copyright 2011-2012 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 | b956618e | Antony Chazapis | from traceback import format_exc |
36 | 65bbcd43 | Christos Stavrakakis | from datetime import datetime |
37 | 9fefc052 | Antony Chazapis | from urllib import quote, unquote |
38 | b956618e | Antony Chazapis | |
39 | b956618e | Antony Chazapis | from django.conf import settings |
40 | b956618e | Antony Chazapis | from django.http import HttpResponse |
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 | b956618e | Antony Chazapis | |
48 | 896754a6 | Christos Stavrakakis | from snf_django.lib.api.parsedate import parse_http_date_safe, parse_http_date |
49 | 04a1b675 | Christos Stavrakakis | from snf_django.lib.astakos import user_for_token |
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 | 1f3f907f | Sofia Papagiannaki | BACKEND_QUEUE_EXCHANGE, USE_QUOTAHOLDER, |
58 | 3173699c | Sofia Papagiannaki | QUOTAHOLDER_URL, QUOTAHOLDER_TOKEN, |
59 | b336e6fa | Georgios D. Tsoukalas | QUOTAHOLDER_POOLSIZE, |
60 | 6dd0fc7c | Christos Stavrakakis | ASTAKOS_URL, |
61 | 3173699c | Sofia Papagiannaki | BACKEND_QUOTA, BACKEND_VERSIONING, |
62 | 61c5b615 | Sofia Papagiannaki | BACKEND_FREE_VERSIONING, BACKEND_POOL_SIZE, |
63 | 27932481 | Sofia Papagiannaki | COOKIE_NAME, USER_CATALOG_URL, |
64 | 47462eda | Filippos Giannakos | RADOS_STORAGE, RADOS_POOL_BLOCKS, |
65 | 56f3c759 | Sofia Papagiannaki | RADOS_POOL_MAPS, TRANSLATE_UUIDS, |
66 | 4a105ce2 | Sofia Papagiannaki | PUBLIC_URL_SECURITY, |
67 | 56f3c759 | Sofia Papagiannaki | PUBLIC_URL_ALPHABET) |
68 | 32454501 | Sofia Papagiannaki | from pithos.backends.base import (NotAllowedError, QuotaError, ItemNotExists, |
69 | 32454501 | Sofia Papagiannaki | VersionNotExists) |
70 | 04a1b675 | Christos Stavrakakis | from snf_django.lib.astakos import (get_user_uuid, get_displayname, |
71 | 890c2065 | Sofia Papagiannaki | get_uuids, get_displaynames) |
72 | b956618e | Antony Chazapis | |
73 | b956618e | Antony Chazapis | import logging |
74 | 22dab079 | Antony Chazapis | import re |
75 | cbfb6636 | Sofia Papagiannaki | import hashlib |
76 | 7bef5750 | Antony Chazapis | import uuid |
77 | c48acbfd | Sofia Papagiannaki | import decimal |
78 | 8c793655 | Antony Chazapis | |
79 | b956618e | Antony Chazapis | logger = logging.getLogger(__name__) |
80 | b956618e | Antony Chazapis | |
81 | b956618e | Antony Chazapis | |
82 | c48acbfd | Sofia Papagiannaki | def json_encode_decimal(obj): |
83 | c48acbfd | Sofia Papagiannaki | if isinstance(obj, decimal.Decimal): |
84 | c48acbfd | Sofia Papagiannaki | return str(obj) |
85 | c48acbfd | Sofia Papagiannaki | raise TypeError(repr(obj) + " is not JSON serializable") |
86 | c48acbfd | Sofia Papagiannaki | |
87 | 2715ade4 | Sofia Papagiannaki | |
88 | 804e8fe7 | Antony Chazapis | def rename_meta_key(d, old, new): |
89 | 804e8fe7 | Antony Chazapis | if old not in d: |
90 | 804e8fe7 | Antony Chazapis | return
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91 | 804e8fe7 | Antony Chazapis | d[new] = d[old] |
92 | 804e8fe7 | Antony Chazapis | del(d[old])
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93 | 804e8fe7 | Antony Chazapis | |
94 | 2715ade4 | Sofia Papagiannaki | |
95 | 02c0c3fa | Antony Chazapis | def printable_header_dict(d): |
96 | b956618e | Antony Chazapis | """Format a meta dictionary for printing out json/xml.
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97 | 2715ade4 | Sofia Papagiannaki |
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98 | 804e8fe7 | Antony Chazapis | Convert all keys to lower case and replace dashes with underscores.
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99 | 804e8fe7 | Antony Chazapis | Format 'last_modified' timestamp.
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100 | b956618e | Antony Chazapis | """
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101 | 2715ade4 | Sofia Papagiannaki | |
102 | 371d907a | Antony Chazapis | if 'last_modified' in d and d['last_modified']: |
103 | 65bbcd43 | Christos Stavrakakis | d['last_modified'] = utils.isoformat(
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104 | 2715ade4 | Sofia Papagiannaki | datetime.fromtimestamp(d['last_modified']))
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105 | b956618e | Antony Chazapis | return dict([(k.lower().replace('-', '_'), v) for k, v in d.iteritems()]) |
106 | b956618e | Antony Chazapis | |
107 | 2715ade4 | Sofia Papagiannaki | |
108 | 02c0c3fa | Antony Chazapis | def format_header_key(k): |
109 | 58a6c894 | Antony Chazapis | """Convert underscores to dashes and capitalize intra-dash strings."""
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110 | b956618e | Antony Chazapis | return '-'.join([x.capitalize() for x in k.replace('_', '-').split('-')]) |
111 | b956618e | Antony Chazapis | |
112 | 2715ade4 | Sofia Papagiannaki | |
113 | 02c0c3fa | Antony Chazapis | def get_header_prefix(request, prefix): |
114 | 02c0c3fa | Antony Chazapis | """Get all prefix-* request headers in a dict. Reformat keys with format_header_key()."""
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115 | 2715ade4 | Sofia Papagiannaki | |
116 | b956618e | Antony Chazapis | prefix = 'HTTP_' + prefix.upper().replace('-', '_') |
117 | 3ab38c43 | Antony Chazapis | # TODO: Document or remove '~' replacing.
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118 | 3ab38c43 | Antony Chazapis | return dict([(format_header_key(k[5:]), v.replace('~', '')) for k, v in request.META.iteritems() if k.startswith(prefix) and len(k) > len(prefix)]) |
119 | 02c0c3fa | Antony Chazapis | |
120 | 2715ade4 | Sofia Papagiannaki | |
121 | 62bf8157 | Antony Chazapis | def check_meta_headers(meta): |
122 | 62bf8157 | Antony Chazapis | if len(meta) > 90: |
123 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Too many headers.') |
124 | 62bf8157 | Antony Chazapis | for k, v in meta.iteritems(): |
125 | 62bf8157 | Antony Chazapis | if len(k) > 128: |
126 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Header name too large.') |
127 | 62bf8157 | Antony Chazapis | if len(v) > 256: |
128 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Header value too large.') |
129 | 62bf8157 | Antony Chazapis | |
130 | 2715ade4 | Sofia Papagiannaki | |
131 | 02c0c3fa | Antony Chazapis | def get_account_headers(request): |
132 | 02c0c3fa | Antony Chazapis | meta = get_header_prefix(request, 'X-Account-Meta-')
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133 | 62bf8157 | Antony Chazapis | check_meta_headers(meta) |
134 | 02c0c3fa | Antony Chazapis | groups = {} |
135 | 02c0c3fa | Antony Chazapis | for k, v in get_header_prefix(request, 'X-Account-Group-').iteritems(): |
136 | 02c0c3fa | Antony Chazapis | n = k[16:].lower()
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137 | 02c0c3fa | Antony Chazapis | if '-' in n or '_' in n: |
138 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Bad characters in group name') |
139 | 02c0c3fa | Antony Chazapis | groups[n] = v.replace(' ', '').split(',') |
140 | 40d6b76d | Antony Chazapis | while '' in groups[n]: |
141 | 02c0c3fa | Antony Chazapis | groups[n].remove('')
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142 | 02c0c3fa | Antony Chazapis | return meta, groups
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143 | 02c0c3fa | Antony Chazapis | |
144 | 2715ade4 | Sofia Papagiannaki | |
145 | 647a5f48 | Antony Chazapis | def put_account_headers(response, meta, groups, policy): |
146 | f6c97079 | Antony Chazapis | if 'count' in meta: |
147 | f6c97079 | Antony Chazapis | response['X-Account-Container-Count'] = meta['count'] |
148 | f6c97079 | Antony Chazapis | if 'bytes' in meta: |
149 | f6c97079 | Antony Chazapis | response['X-Account-Bytes-Used'] = meta['bytes'] |
150 | d065f612 | Antony Chazapis | response['Last-Modified'] = http_date(int(meta['modified'])) |
151 | b956618e | Antony Chazapis | for k in [x for x in meta.keys() if x.startswith('X-Account-Meta-')]: |
152 | 2715ade4 | Sofia Papagiannaki | response[smart_str( |
153 | 2715ade4 | Sofia Papagiannaki | k, strings_only=True)] = smart_str(meta[k], strings_only=True) |
154 | 83dd59c5 | Antony Chazapis | if 'until_timestamp' in meta: |
155 | 2715ade4 | Sofia Papagiannaki | response['X-Account-Until-Timestamp'] = http_date(
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156 | 2715ade4 | Sofia Papagiannaki | int(meta['until_timestamp'])) |
157 | 02c0c3fa | Antony Chazapis | for k, v in groups.iteritems(): |
158 | e7b51248 | Sofia Papagiannaki | k = smart_str(k, strings_only=True)
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159 | e7b51248 | Sofia Papagiannaki | k = format_header_key('X-Account-Group-' + k)
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160 | e7b51248 | Sofia Papagiannaki | v = smart_str(','.join(v), strings_only=True) |
161 | e7b51248 | Sofia Papagiannaki | response[k] = v |
162 | 647a5f48 | Antony Chazapis | for k, v in policy.iteritems(): |
163 | 647a5f48 | Antony Chazapis | response[smart_str(format_header_key('X-Account-Policy-' + k), strings_only=True)] = smart_str(v, strings_only=True) |
164 | 647a5f48 | Antony Chazapis | |
165 | 2715ade4 | Sofia Papagiannaki | |
166 | 02c0c3fa | Antony Chazapis | def get_container_headers(request): |
167 | 02c0c3fa | Antony Chazapis | meta = get_header_prefix(request, 'X-Container-Meta-')
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168 | 62bf8157 | Antony Chazapis | check_meta_headers(meta) |
169 | 3ab38c43 | Antony Chazapis | policy = dict([(k[19:].lower(), v.replace(' ', '')) for k, v in get_header_prefix(request, 'X-Container-Policy-').iteritems()]) |
170 | 3ab38c43 | Antony Chazapis | return meta, policy
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171 | b956618e | Antony Chazapis | |
172 | 2715ade4 | Sofia Papagiannaki | |
173 | 39593b2b | Giorgos Verigakis | def put_container_headers(request, response, meta, policy): |
174 | f6c97079 | Antony Chazapis | if 'count' in meta: |
175 | f6c97079 | Antony Chazapis | response['X-Container-Object-Count'] = meta['count'] |
176 | f6c97079 | Antony Chazapis | if 'bytes' in meta: |
177 | f6c97079 | Antony Chazapis | response['X-Container-Bytes-Used'] = meta['bytes'] |
178 | 58a6c894 | Antony Chazapis | response['Last-Modified'] = http_date(int(meta['modified'])) |
179 | b956618e | Antony Chazapis | for k in [x for x in meta.keys() if x.startswith('X-Container-Meta-')]: |
180 | 2715ade4 | Sofia Papagiannaki | response[smart_str( |
181 | 2715ade4 | Sofia Papagiannaki | k, strings_only=True)] = smart_str(meta[k], strings_only=True) |
182 | 2715ade4 | Sofia Papagiannaki | l = [smart_str(x, strings_only=True) for x in meta['object_meta'] |
183 | 2715ade4 | Sofia Papagiannaki | if x.startswith('X-Object-Meta-')] |
184 | e7b51248 | Sofia Papagiannaki | response['X-Container-Object-Meta'] = ','.join([x[14:] for x in l]) |
185 | 39593b2b | Giorgos Verigakis | response['X-Container-Block-Size'] = request.backend.block_size
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186 | 39593b2b | Giorgos Verigakis | response['X-Container-Block-Hash'] = request.backend.hash_algorithm
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187 | 83dd59c5 | Antony Chazapis | if 'until_timestamp' in meta: |
188 | 2715ade4 | Sofia Papagiannaki | response['X-Container-Until-Timestamp'] = http_date(
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189 | 2715ade4 | Sofia Papagiannaki | int(meta['until_timestamp'])) |
190 | 3ab38c43 | Antony Chazapis | for k, v in policy.iteritems(): |
191 | e7b51248 | Sofia Papagiannaki | response[smart_str(format_header_key('X-Container-Policy-' + k), strings_only=True)] = smart_str(v, strings_only=True) |
192 | b956618e | Antony Chazapis | |
193 | 2715ade4 | Sofia Papagiannaki | |
194 | 02c0c3fa | Antony Chazapis | def get_object_headers(request): |
195 | 66ce2ca5 | Antony Chazapis | content_type = request.META.get('CONTENT_TYPE', None) |
196 | 02c0c3fa | Antony Chazapis | meta = get_header_prefix(request, 'X-Object-Meta-')
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197 | 62bf8157 | Antony Chazapis | check_meta_headers(meta) |
198 | b956618e | Antony Chazapis | if request.META.get('HTTP_CONTENT_ENCODING'): |
199 | b956618e | Antony Chazapis | meta['Content-Encoding'] = request.META['HTTP_CONTENT_ENCODING'] |
200 | 22dab079 | Antony Chazapis | if request.META.get('HTTP_CONTENT_DISPOSITION'): |
201 | 22dab079 | Antony Chazapis | meta['Content-Disposition'] = request.META['HTTP_CONTENT_DISPOSITION'] |
202 | b956618e | Antony Chazapis | if request.META.get('HTTP_X_OBJECT_MANIFEST'): |
203 | b956618e | Antony Chazapis | meta['X-Object-Manifest'] = request.META['HTTP_X_OBJECT_MANIFEST'] |
204 | 66ce2ca5 | Antony Chazapis | return content_type, meta, get_sharing(request), get_public(request)
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205 | b956618e | Antony Chazapis | |
206 | 2715ade4 | Sofia Papagiannaki | |
207 | 469d0997 | Georgios D. Tsoukalas | def put_object_headers(response, meta, restricted=False, token=None): |
208 | 33b4e4a6 | Antony Chazapis | response['ETag'] = meta['checksum'] |
209 | b956618e | Antony Chazapis | response['Content-Length'] = meta['bytes'] |
210 | 66ce2ca5 | Antony Chazapis | response['Content-Type'] = meta.get('type', 'application/octet-stream') |
211 | b956618e | Antony Chazapis | response['Last-Modified'] = http_date(int(meta['modified'])) |
212 | 3ab38c43 | Antony Chazapis | if not restricted: |
213 | 4a1c29ea | Antony Chazapis | response['X-Object-Hash'] = meta['hash'] |
214 | 37bee317 | Antony Chazapis | response['X-Object-UUID'] = meta['uuid'] |
215 | 469d0997 | Georgios D. Tsoukalas | if TRANSLATE_UUIDS:
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216 | 7273ee62 | Sofia Papagiannaki | meta['modified_by'] = retrieve_displayname(token, meta['modified_by']) |
217 | 7273ee62 | Sofia Papagiannaki | response['X-Object-Modified-By'] = smart_str(
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218 | 7273ee62 | Sofia Papagiannaki | meta['modified_by'], strings_only=True) |
219 | 7bef5750 | Antony Chazapis | response['X-Object-Version'] = meta['version'] |
220 | 2715ade4 | Sofia Papagiannaki | response['X-Object-Version-Timestamp'] = http_date(
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221 | 2715ade4 | Sofia Papagiannaki | int(meta['version_timestamp'])) |
222 | 7bef5750 | Antony Chazapis | for k in [x for x in meta.keys() if x.startswith('X-Object-Meta-')]: |
223 | 2715ade4 | Sofia Papagiannaki | response[smart_str( |
224 | 2715ade4 | Sofia Papagiannaki | k, strings_only=True)] = smart_str(meta[k], strings_only=True) |
225 | 2715ade4 | Sofia Papagiannaki | for k in ( |
226 | 2715ade4 | Sofia Papagiannaki | 'Content-Encoding', 'Content-Disposition', 'X-Object-Manifest', |
227 | 2715ade4 | Sofia Papagiannaki | 'X-Object-Sharing', 'X-Object-Shared-By', 'X-Object-Allowed-To', |
228 | 2715ade4 | Sofia Papagiannaki | 'X-Object-Public'):
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229 | 7bef5750 | Antony Chazapis | if k in meta: |
230 | e7b51248 | Sofia Papagiannaki | response[k] = smart_str(meta[k], strings_only=True)
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231 | 7bef5750 | Antony Chazapis | else:
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232 | c9af0703 | Antony Chazapis | for k in ('Content-Encoding', 'Content-Disposition'): |
233 | 7bef5750 | Antony Chazapis | if k in meta: |
234 | e8d003e8 | Antony Chazapis | response[k] = smart_str(meta[k], strings_only=True)
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235 | b956618e | Antony Chazapis | |
236 | 2715ade4 | Sofia Papagiannaki | |
237 | 8cb45c13 | Antony Chazapis | def update_manifest_meta(request, v_account, meta): |
238 | 8cb45c13 | Antony Chazapis | """Update metadata if the object has an X-Object-Manifest."""
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239 | 2715ade4 | Sofia Papagiannaki | |
240 | 8cb45c13 | Antony Chazapis | if 'X-Object-Manifest' in meta: |
241 | 4a1c29ea | Antony Chazapis | etag = ''
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242 | 8cb45c13 | Antony Chazapis | bytes = 0
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243 | 8cb45c13 | Antony Chazapis | try:
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244 | 2715ade4 | Sofia Papagiannaki | src_container, src_name = split_container_object_string( |
245 | 2715ade4 | Sofia Papagiannaki | '/' + meta['X-Object-Manifest']) |
246 | 2715ade4 | Sofia Papagiannaki | objects = request.backend.list_objects( |
247 | 2715ade4 | Sofia Papagiannaki | request.user_uniq, v_account, |
248 | 2715ade4 | Sofia Papagiannaki | src_container, prefix=src_name, virtual=False)
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249 | 8cb45c13 | Antony Chazapis | for x in objects: |
250 | 61efb530 | Antony Chazapis | src_meta = request.backend.get_object_meta(request.user_uniq, |
251 | 2715ade4 | Sofia Papagiannaki | v_account, src_container, x[0], 'pithos', x[1]) |
252 | 33b4e4a6 | Antony Chazapis | etag += src_meta['checksum']
|
253 | 8cb45c13 | Antony Chazapis | bytes += src_meta['bytes'] |
254 | 8cb45c13 | Antony Chazapis | except:
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255 | 8cb45c13 | Antony Chazapis | # Ignore errors.
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256 | 8cb45c13 | Antony Chazapis | return
|
257 | 8cb45c13 | Antony Chazapis | meta['bytes'] = bytes |
258 | 8cb45c13 | Antony Chazapis | md5 = hashlib.md5() |
259 | 4a1c29ea | Antony Chazapis | md5.update(etag) |
260 | 33b4e4a6 | Antony Chazapis | meta['checksum'] = md5.hexdigest().lower()
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261 | 8cb45c13 | Antony Chazapis | |
262 | 9839cc96 | root | def is_uuid(str): |
263 | 0325be55 | Sofia Papagiannaki | if str is None: |
264 | 0325be55 | Sofia Papagiannaki | return False |
265 | 9839cc96 | root | try:
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266 | 9839cc96 | root | uuid.UUID(str)
|
267 | 9839cc96 | root | except ValueError: |
268 | 0325be55 | Sofia Papagiannaki | return False |
269 | 9839cc96 | root | else:
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270 | 9839cc96 | root | return True |
271 | 2715ade4 | Sofia Papagiannaki | |
272 | 27932481 | Sofia Papagiannaki | ##########################
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273 | 27932481 | Sofia Papagiannaki | # USER CATALOG utilities #
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274 | 27932481 | Sofia Papagiannaki | ##########################
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275 | 27932481 | Sofia Papagiannaki | |
276 | 469d0997 | Georgios D. Tsoukalas | def retrieve_displayname(token, uuid, fail_silently=True): |
277 | 8df4fae6 | Christos Stavrakakis | displayname = get_displayname(token, uuid, USER_CATALOG_URL) |
278 | 469d0997 | Georgios D. Tsoukalas | if not displayname and not fail_silently: |
279 | 469d0997 | Georgios D. Tsoukalas | raise ItemNotExists(uuid)
|
280 | 469d0997 | Georgios D. Tsoukalas | elif not displayname: |
281 | 469d0997 | Georgios D. Tsoukalas | # just return the uuid
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282 | 32454501 | Sofia Papagiannaki | return uuid
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283 | 469d0997 | Georgios D. Tsoukalas | return displayname
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284 | 32454501 | Sofia Papagiannaki | |
285 | 469d0997 | Georgios D. Tsoukalas | def retrieve_displaynames(token, uuids, return_dict=False, fail_silently=True): |
286 | 8df4fae6 | Christos Stavrakakis | catalog = get_displaynames(token, uuids, USER_CATALOG_URL) or {}
|
287 | 469d0997 | Georgios D. Tsoukalas | missing = list(set(uuids) - set(catalog)) |
288 | 469d0997 | Georgios D. Tsoukalas | if missing and not fail_silently: |
289 | 469d0997 | Georgios D. Tsoukalas | raise ItemNotExists('Unknown displaynames: %s' % ', '.join(missing)) |
290 | 469d0997 | Georgios D. Tsoukalas | return catalog if return_dict else [catalog.get(i) for i in uuids] |
291 | 88dd5c4d | Sofia Papagiannaki | |
292 | 27932481 | Sofia Papagiannaki | def retrieve_uuid(token, displayname): |
293 | 890c2065 | Sofia Papagiannaki | if is_uuid(displayname):
|
294 | 890c2065 | Sofia Papagiannaki | return displayname
|
295 | 890c2065 | Sofia Papagiannaki | |
296 | 8df4fae6 | Christos Stavrakakis | uuid = get_user_uuid(token, displayname, USER_CATALOG_URL) |
297 | 890c2065 | Sofia Papagiannaki | if not uuid: |
298 | 890c2065 | Sofia Papagiannaki | raise ItemNotExists(displayname)
|
299 | 890c2065 | Sofia Papagiannaki | return uuid
|
300 | 890c2065 | Sofia Papagiannaki | |
301 | 469d0997 | Georgios D. Tsoukalas | def retrieve_uuids(token, displaynames, return_dict=False, fail_silently=True): |
302 | 8df4fae6 | Christos Stavrakakis | catalog = get_uuids(token, displaynames, USER_CATALOG_URL) or {}
|
303 | 469d0997 | Georgios D. Tsoukalas | missing = list(set(displaynames) - set(catalog)) |
304 | 469d0997 | Georgios D. Tsoukalas | if missing and not fail_silently: |
305 | 469d0997 | Georgios D. Tsoukalas | raise ItemNotExists('Unknown uuids: %s' % ', '.join(missing)) |
306 | 469d0997 | Georgios D. Tsoukalas | return catalog if return_dict else [catalog.get(i) for i in displaynames] |
307 | 890c2065 | Sofia Papagiannaki | |
308 | 27932481 | Sofia Papagiannaki | def replace_permissions_displayname(token, holder): |
309 | 469d0997 | Georgios D. Tsoukalas | if holder == '*': |
310 | 469d0997 | Georgios D. Tsoukalas | return holder
|
311 | 32454501 | Sofia Papagiannaki | try:
|
312 | 32454501 | Sofia Papagiannaki | # check first for a group permission
|
313 | 4a9e3f32 | Sofia Papagiannaki | account, group = holder.split(':', 1) |
314 | 32454501 | Sofia Papagiannaki | except ValueError: |
315 | 469d0997 | Georgios D. Tsoukalas | return retrieve_uuid(token, holder)
|
316 | 32454501 | Sofia Papagiannaki | else:
|
317 | 469d0997 | Georgios D. Tsoukalas | return ':'.join([retrieve_uuid(token, account), group]) |
318 | 32454501 | Sofia Papagiannaki | |
319 | 27932481 | Sofia Papagiannaki | def replace_permissions_uuid(token, holder): |
320 | 469d0997 | Georgios D. Tsoukalas | if holder == '*': |
321 | 469d0997 | Georgios D. Tsoukalas | return holder
|
322 | 32454501 | Sofia Papagiannaki | try:
|
323 | 32454501 | Sofia Papagiannaki | # check first for a group permission
|
324 | 4a9e3f32 | Sofia Papagiannaki | account, group = holder.split(':', 1) |
325 | 32454501 | Sofia Papagiannaki | except ValueError: |
326 | 469d0997 | Georgios D. Tsoukalas | return retrieve_displayname(token, holder)
|
327 | 32454501 | Sofia Papagiannaki | else:
|
328 | 469d0997 | Georgios D. Tsoukalas | return ':'.join([retrieve_displayname(token, account), group]) |
329 | 32454501 | Sofia Papagiannaki | |
330 | 067cf1fc | Antony Chazapis | def update_sharing_meta(request, permissions, v_account, v_container, v_object, meta): |
331 | cca6c617 | Antony Chazapis | if permissions is None: |
332 | cca6c617 | Antony Chazapis | return
|
333 | 067cf1fc | Antony Chazapis | allowed, perm_path, perms = permissions |
334 | cca6c617 | Antony Chazapis | if len(perms) == 0: |
335 | cca6c617 | Antony Chazapis | return
|
336 | 32454501 | Sofia Papagiannaki | |
337 | 27932481 | Sofia Papagiannaki | # replace uuid with displayname
|
338 | 469d0997 | Georgios D. Tsoukalas | if TRANSLATE_UUIDS:
|
339 | 469d0997 | Georgios D. Tsoukalas | perms['read'] = [replace_permissions_uuid(
|
340 | 469d0997 | Georgios D. Tsoukalas | getattr(request, 'token', None), x) \ |
341 | 469d0997 | Georgios D. Tsoukalas | for x in perms.get('read', [])] |
342 | 469d0997 | Georgios D. Tsoukalas | perms['write'] = [replace_permissions_uuid(
|
343 | 469d0997 | Georgios D. Tsoukalas | getattr(request, 'token', None), x) \ |
344 | 469d0997 | Georgios D. Tsoukalas | for x in perms.get('write', [])] |
345 | 32454501 | Sofia Papagiannaki | |
346 | 3436eeb0 | Antony Chazapis | ret = [] |
347 | 32454501 | Sofia Papagiannaki | |
348 | cca6c617 | Antony Chazapis | r = ','.join(perms.get('read', [])) |
349 | 3436eeb0 | Antony Chazapis | if r:
|
350 | 3436eeb0 | Antony Chazapis | ret.append('read=' + r)
|
351 | cca6c617 | Antony Chazapis | w = ','.join(perms.get('write', [])) |
352 | 3436eeb0 | Antony Chazapis | if w:
|
353 | 3436eeb0 | Antony Chazapis | ret.append('write=' + w)
|
354 | cca6c617 | Antony Chazapis | meta['X-Object-Sharing'] = '; '.join(ret) |
355 | cca6c617 | Antony Chazapis | if '/'.join((v_account, v_container, v_object)) != perm_path: |
356 | cca6c617 | Antony Chazapis | meta['X-Object-Shared-By'] = perm_path
|
357 | 61efb530 | Antony Chazapis | if request.user_uniq != v_account:
|
358 | 067cf1fc | Antony Chazapis | meta['X-Object-Allowed-To'] = allowed
|
359 | 3436eeb0 | Antony Chazapis | |
360 | 2715ade4 | Sofia Papagiannaki | |
361 | e0f916bb | Antony Chazapis | def update_public_meta(public, meta): |
362 | e0f916bb | Antony Chazapis | if not public: |
363 | e0f916bb | Antony Chazapis | return
|
364 | 56f3c759 | Sofia Papagiannaki | meta['X-Object-Public'] = '/public/' + public |
365 | e0f916bb | Antony Chazapis | |
366 | 2715ade4 | Sofia Papagiannaki | |
367 | b956618e | Antony Chazapis | def validate_modification_preconditions(request, meta): |
368 | 58a6c894 | Antony Chazapis | """Check that the modified timestamp conforms with the preconditions set."""
|
369 | 2715ade4 | Sofia Papagiannaki | |
370 | 22dab079 | Antony Chazapis | if 'modified' not in meta: |
371 | 2715ade4 | Sofia Papagiannaki | return # TODO: Always return? |
372 | 2715ade4 | Sofia Papagiannaki | |
373 | b956618e | Antony Chazapis | if_modified_since = request.META.get('HTTP_IF_MODIFIED_SINCE')
|
374 | b956618e | Antony Chazapis | if if_modified_since is not None: |
375 | b956618e | Antony Chazapis | if_modified_since = parse_http_date_safe(if_modified_since) |
376 | 22dab079 | Antony Chazapis | if if_modified_since is not None and int(meta['modified']) <= if_modified_since: |
377 | bd40abfa | Christos Stavrakakis | raise faults.NotModified('Resource has not been modified') |
378 | 2715ade4 | Sofia Papagiannaki | |
379 | b956618e | Antony Chazapis | if_unmodified_since = request.META.get('HTTP_IF_UNMODIFIED_SINCE')
|
380 | b956618e | Antony Chazapis | if if_unmodified_since is not None: |
381 | b956618e | Antony Chazapis | if_unmodified_since = parse_http_date_safe(if_unmodified_since) |
382 | 22dab079 | Antony Chazapis | if if_unmodified_since is not None and int(meta['modified']) > if_unmodified_since: |
383 | bd40abfa | Christos Stavrakakis | raise faults.PreconditionFailed('Resource has been modified') |
384 | b956618e | Antony Chazapis | |
385 | 2715ade4 | Sofia Papagiannaki | |
386 | 22dab079 | Antony Chazapis | def validate_matching_preconditions(request, meta): |
387 | 58a6c894 | Antony Chazapis | """Check that the ETag conforms with the preconditions set."""
|
388 | 2715ade4 | Sofia Papagiannaki | |
389 | 33b4e4a6 | Antony Chazapis | etag = meta['checksum']
|
390 | 33b4e4a6 | Antony Chazapis | if not etag: |
391 | 33b4e4a6 | Antony Chazapis | etag = None
|
392 | 2715ade4 | Sofia Papagiannaki | |
393 | 22dab079 | Antony Chazapis | if_match = request.META.get('HTTP_IF_MATCH')
|
394 | a8326bef | Antony Chazapis | if if_match is not None: |
395 | 4a1c29ea | Antony Chazapis | if etag is None: |
396 | bd40abfa | Christos Stavrakakis | raise faults.PreconditionFailed('Resource does not exist') |
397 | 4a1c29ea | Antony Chazapis | if if_match != '*' and etag not in [x.lower() for x in parse_etags(if_match)]: |
398 | bd40abfa | Christos Stavrakakis | raise faults.PreconditionFailed('Resource ETag does not match') |
399 | 2715ade4 | Sofia Papagiannaki | |
400 | 22dab079 | Antony Chazapis | if_none_match = request.META.get('HTTP_IF_NONE_MATCH')
|
401 | 22dab079 | Antony Chazapis | if if_none_match is not None: |
402 | a8326bef | Antony Chazapis | # TODO: If this passes, must ignore If-Modified-Since header.
|
403 | 4a1c29ea | Antony Chazapis | if etag is not None: |
404 | 4a1c29ea | Antony Chazapis | if if_none_match == '*' or etag in [x.lower() for x in parse_etags(if_none_match)]: |
405 | a8326bef | Antony Chazapis | # TODO: Continue if an If-Modified-Since header is present.
|
406 | a8326bef | Antony Chazapis | if request.method in ('HEAD', 'GET'): |
407 | bd40abfa | Christos Stavrakakis | raise faults.NotModified('Resource ETag matches') |
408 | bd40abfa | Christos Stavrakakis | raise faults.PreconditionFailed('Resource exists or ETag matches') |
409 | 22dab079 | Antony Chazapis | |
410 | 2715ade4 | Sofia Papagiannaki | |
411 | 83dd59c5 | Antony Chazapis | def split_container_object_string(s): |
412 | 6d817842 | Antony Chazapis | if not len(s) > 0 or s[0] != '/': |
413 | 6d817842 | Antony Chazapis | raise ValueError |
414 | 6d817842 | Antony Chazapis | s = s[1:]
|
415 | 8cb45c13 | Antony Chazapis | pos = s.find('/')
|
416 | 22d7b01e | Antony Chazapis | if pos == -1 or pos == len(s) - 1: |
417 | 83dd59c5 | Antony Chazapis | raise ValueError |
418 | 8cb45c13 | Antony Chazapis | return s[:pos], s[(pos + 1):] |
419 | 83dd59c5 | Antony Chazapis | |
420 | 2715ade4 | Sofia Papagiannaki | |
421 | 4d15c94e | Sofia Papagiannaki | def copy_or_move_object(request, src_account, src_container, src_name, dest_account, dest_container, dest_name, move=False, delimiter=None): |
422 | 58a6c894 | Antony Chazapis | """Copy or move an object."""
|
423 | 2715ade4 | Sofia Papagiannaki | |
424 | 53cff70c | Antony Chazapis | if 'ignore_content_type' in request.GET and 'CONTENT_TYPE' in request.META: |
425 | 53cff70c | Antony Chazapis | del(request.META['CONTENT_TYPE']) |
426 | 66ce2ca5 | Antony Chazapis | content_type, meta, permissions, public = get_object_headers(request) |
427 | 79bb41b7 | Antony Chazapis | src_version = request.META.get('HTTP_X_SOURCE_VERSION')
|
428 | b956618e | Antony Chazapis | try:
|
429 | b956618e | Antony Chazapis | if move:
|
430 | 2715ade4 | Sofia Papagiannaki | version_id = request.backend.move_object( |
431 | 2715ade4 | Sofia Papagiannaki | request.user_uniq, src_account, src_container, src_name, |
432 | 2715ade4 | Sofia Papagiannaki | dest_account, dest_container, dest_name, |
433 | 2715ade4 | Sofia Papagiannaki | content_type, 'pithos', meta, False, permissions, delimiter) |
434 | b956618e | Antony Chazapis | else:
|
435 | 2715ade4 | Sofia Papagiannaki | version_id = request.backend.copy_object( |
436 | 2715ade4 | Sofia Papagiannaki | request.user_uniq, src_account, src_container, src_name, |
437 | 2715ade4 | Sofia Papagiannaki | dest_account, dest_container, dest_name, |
438 | 2715ade4 | Sofia Papagiannaki | content_type, 'pithos', meta, False, permissions, src_version, delimiter) |
439 | cca6c617 | Antony Chazapis | except NotAllowedError:
|
440 | bd40abfa | Christos Stavrakakis | raise faults.Forbidden('Not allowed') |
441 | 7efc9f86 | Sofia Papagiannaki | except (ItemNotExists, VersionNotExists):
|
442 | bd40abfa | Christos Stavrakakis | raise faults.ItemNotFound('Container or object does not exist') |
443 | 3436eeb0 | Antony Chazapis | except ValueError: |
444 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Invalid sharing header') |
445 | dfa2d4ba | Sofia Papagiannaki | except QuotaError, e:
|
446 | bd40abfa | Christos Stavrakakis | raise faults.RequestEntityTooLarge('Quota error: %s' % e) |
447 | e0f916bb | Antony Chazapis | if public is not None: |
448 | e0f916bb | Antony Chazapis | try:
|
449 | 61efb530 | Antony Chazapis | request.backend.update_object_public(request.user_uniq, dest_account, dest_container, dest_name, public) |
450 | e0f916bb | Antony Chazapis | except NotAllowedError:
|
451 | bd40abfa | Christos Stavrakakis | raise faults.Forbidden('Not allowed') |
452 | 7efc9f86 | Sofia Papagiannaki | except ItemNotExists:
|
453 | bd40abfa | Christos Stavrakakis | raise faults.ItemNotFound('Object does not exist') |
454 | 7dd293a0 | Antony Chazapis | return version_id
|
455 | b956618e | Antony Chazapis | |
456 | 2715ade4 | Sofia Papagiannaki | |
457 | 1495b972 | Antony Chazapis | def get_int_parameter(p): |
458 | 83dd59c5 | Antony Chazapis | if p is not None: |
459 | 58a6c894 | Antony Chazapis | try:
|
460 | 83dd59c5 | Antony Chazapis | p = int(p)
|
461 | 58a6c894 | Antony Chazapis | except ValueError: |
462 | 58a6c894 | Antony Chazapis | return None |
463 | 83dd59c5 | Antony Chazapis | if p < 0: |
464 | 58a6c894 | Antony Chazapis | return None |
465 | 83dd59c5 | Antony Chazapis | return p
|
466 | 58a6c894 | Antony Chazapis | |
467 | 2715ade4 | Sofia Papagiannaki | |
468 | 22dab079 | Antony Chazapis | def get_content_length(request): |
469 | 1495b972 | Antony Chazapis | content_length = get_int_parameter(request.META.get('CONTENT_LENGTH'))
|
470 | 1495b972 | Antony Chazapis | if content_length is None: |
471 | bd40abfa | Christos Stavrakakis | raise faults.LengthRequired('Missing or invalid Content-Length header') |
472 | 22dab079 | Antony Chazapis | return content_length
|
473 | 22dab079 | Antony Chazapis | |
474 | 2715ade4 | Sofia Papagiannaki | |
475 | 22dab079 | Antony Chazapis | def get_range(request, size): |
476 | 58a6c894 | Antony Chazapis | """Parse a Range header from the request.
|
477 | 2715ade4 | Sofia Papagiannaki |
|
478 | 22dab079 | Antony Chazapis | Either returns None, when the header is not existent or should be ignored,
|
479 | 22dab079 | Antony Chazapis | or a list of (offset, length) tuples - should be further checked.
|
480 | b956618e | Antony Chazapis | """
|
481 | 2715ade4 | Sofia Papagiannaki | |
482 | 22dab079 | Antony Chazapis | ranges = request.META.get('HTTP_RANGE', '').replace(' ', '') |
483 | 22dab079 | Antony Chazapis | if not ranges.startswith('bytes='): |
484 | b956618e | Antony Chazapis | return None |
485 | 2715ade4 | Sofia Papagiannaki | |
486 | 22dab079 | Antony Chazapis | ret = [] |
487 | 22dab079 | Antony Chazapis | for r in (x.strip() for x in ranges[6:].split(',')): |
488 | 22dab079 | Antony Chazapis | p = re.compile('^(?P<offset>\d*)-(?P<upto>\d*)$')
|
489 | 22dab079 | Antony Chazapis | m = p.match(r) |
490 | 22dab079 | Antony Chazapis | if not m: |
491 | 22dab079 | Antony Chazapis | return None |
492 | 22dab079 | Antony Chazapis | offset = m.group('offset')
|
493 | 22dab079 | Antony Chazapis | upto = m.group('upto')
|
494 | 22dab079 | Antony Chazapis | if offset == '' and upto == '': |
495 | b956618e | Antony Chazapis | return None |
496 | 2715ade4 | Sofia Papagiannaki | |
497 | 22dab079 | Antony Chazapis | if offset != '': |
498 | 22dab079 | Antony Chazapis | offset = int(offset)
|
499 | 22dab079 | Antony Chazapis | if upto != '': |
500 | b956618e | Antony Chazapis | upto = int(upto)
|
501 | 22dab079 | Antony Chazapis | if offset > upto:
|
502 | 22dab079 | Antony Chazapis | return None |
503 | 22dab079 | Antony Chazapis | ret.append((offset, upto - offset + 1))
|
504 | 22dab079 | Antony Chazapis | else:
|
505 | 22dab079 | Antony Chazapis | ret.append((offset, size - offset)) |
506 | b956618e | Antony Chazapis | else:
|
507 | 22dab079 | Antony Chazapis | length = int(upto)
|
508 | 22dab079 | Antony Chazapis | ret.append((size - length, length)) |
509 | 2715ade4 | Sofia Papagiannaki | |
510 | 22dab079 | Antony Chazapis | return ret
|
511 | 22dab079 | Antony Chazapis | |
512 | 2715ade4 | Sofia Papagiannaki | |
513 | 22dab079 | Antony Chazapis | def get_content_range(request): |
514 | 58a6c894 | Antony Chazapis | """Parse a Content-Range header from the request.
|
515 | 2715ade4 | Sofia Papagiannaki |
|
516 | 22dab079 | Antony Chazapis | Either returns None, when the header is not existent or should be ignored,
|
517 | 22dab079 | Antony Chazapis | or an (offset, length, total) tuple - check as length, total may be None.
|
518 | 22dab079 | Antony Chazapis | Returns (None, None, None) if the provided range is '*/*'.
|
519 | 22dab079 | Antony Chazapis | """
|
520 | 2715ade4 | Sofia Papagiannaki | |
521 | 22dab079 | Antony Chazapis | ranges = request.META.get('HTTP_CONTENT_RANGE', '') |
522 | 22dab079 | Antony Chazapis | if not ranges: |
523 | 22dab079 | Antony Chazapis | return None |
524 | 2715ade4 | Sofia Papagiannaki | |
525 | 22dab079 | Antony Chazapis | p = re.compile('^bytes (?P<offset>\d+)-(?P<upto>\d*)/(?P<total>(\d+|\*))$')
|
526 | 22dab079 | Antony Chazapis | m = p.match(ranges) |
527 | 22dab079 | Antony Chazapis | if not m: |
528 | 22dab079 | Antony Chazapis | if ranges == 'bytes */*': |
529 | 22dab079 | Antony Chazapis | return (None, None, None) |
530 | 22dab079 | Antony Chazapis | return None |
531 | 22dab079 | Antony Chazapis | offset = int(m.group('offset')) |
532 | 22dab079 | Antony Chazapis | upto = m.group('upto')
|
533 | 22dab079 | Antony Chazapis | total = m.group('total')
|
534 | 22dab079 | Antony Chazapis | if upto != '': |
535 | 22dab079 | Antony Chazapis | upto = int(upto)
|
536 | b956618e | Antony Chazapis | else:
|
537 | 22dab079 | Antony Chazapis | upto = None
|
538 | 22dab079 | Antony Chazapis | if total != '*': |
539 | 22dab079 | Antony Chazapis | total = int(total)
|
540 | 22dab079 | Antony Chazapis | else:
|
541 | 22dab079 | Antony Chazapis | total = None
|
542 | 70e526a0 | Antony Chazapis | if (upto is not None and offset > upto) or \ |
543 | 70e526a0 | Antony Chazapis | (total is not None and offset >= total) or \ |
544 | 2715ade4 | Sofia Papagiannaki | (total is not None and upto is not None and upto >= total): |
545 | 22dab079 | Antony Chazapis | return None |
546 | 2715ade4 | Sofia Papagiannaki | |
547 | 70e526a0 | Antony Chazapis | if upto is None: |
548 | 22dab079 | Antony Chazapis | length = None
|
549 | 22dab079 | Antony Chazapis | else:
|
550 | 22dab079 | Antony Chazapis | length = upto - offset + 1
|
551 | 22dab079 | Antony Chazapis | return (offset, length, total)
|
552 | b956618e | Antony Chazapis | |
553 | 2715ade4 | Sofia Papagiannaki | |
554 | 3436eeb0 | Antony Chazapis | def get_sharing(request): |
555 | 3436eeb0 | Antony Chazapis | """Parse an X-Object-Sharing header from the request.
|
556 | 2715ade4 | Sofia Papagiannaki |
|
557 | 3436eeb0 | Antony Chazapis | Raises BadRequest on error.
|
558 | 3436eeb0 | Antony Chazapis | """
|
559 | 2715ade4 | Sofia Papagiannaki | |
560 | 3436eeb0 | Antony Chazapis | permissions = request.META.get('HTTP_X_OBJECT_SHARING')
|
561 | cca6c617 | Antony Chazapis | if permissions is None: |
562 | 3436eeb0 | Antony Chazapis | return None |
563 | 2715ade4 | Sofia Papagiannaki | |
564 | 0a7f1671 | Antony Chazapis | # TODO: Document or remove '~' replacing.
|
565 | 0a7f1671 | Antony Chazapis | permissions = permissions.replace('~', '') |
566 | 2715ade4 | Sofia Papagiannaki | |
567 | 3436eeb0 | Antony Chazapis | ret = {} |
568 | cca6c617 | Antony Chazapis | permissions = permissions.replace(' ', '') |
569 | cca6c617 | Antony Chazapis | if permissions == '': |
570 | cca6c617 | Antony Chazapis | return ret
|
571 | cca6c617 | Antony Chazapis | for perm in (x for x in permissions.split(';')): |
572 | cca6c617 | Antony Chazapis | if perm.startswith('read='): |
573 | 2715ade4 | Sofia Papagiannaki | ret['read'] = list(set( |
574 | 2715ade4 | Sofia Papagiannaki | [v.replace(' ', '').lower() for v in perm[5:].split(',')])) |
575 | 02c0c3fa | Antony Chazapis | if '' in ret['read']: |
576 | 02c0c3fa | Antony Chazapis | ret['read'].remove('') |
577 | e8886082 | Antony Chazapis | if '*' in ret['read']: |
578 | e8886082 | Antony Chazapis | ret['read'] = ['*'] |
579 | 3436eeb0 | Antony Chazapis | if len(ret['read']) == 0: |
580 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest(
|
581 | 32454501 | Sofia Papagiannaki | 'Bad X-Object-Sharing header value: invalid length')
|
582 | 3436eeb0 | Antony Chazapis | elif perm.startswith('write='): |
583 | 2715ade4 | Sofia Papagiannaki | ret['write'] = list(set( |
584 | 2715ade4 | Sofia Papagiannaki | [v.replace(' ', '').lower() for v in perm[6:].split(',')])) |
585 | 02c0c3fa | Antony Chazapis | if '' in ret['write']: |
586 | 02c0c3fa | Antony Chazapis | ret['write'].remove('') |
587 | e8886082 | Antony Chazapis | if '*' in ret['write']: |
588 | e8886082 | Antony Chazapis | ret['write'] = ['*'] |
589 | 3436eeb0 | Antony Chazapis | if len(ret['write']) == 0: |
590 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest(
|
591 | 32454501 | Sofia Papagiannaki | 'Bad X-Object-Sharing header value: invalid length')
|
592 | 3436eeb0 | Antony Chazapis | else:
|
593 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest(
|
594 | 32454501 | Sofia Papagiannaki | 'Bad X-Object-Sharing header value: missing prefix')
|
595 | 32454501 | Sofia Papagiannaki | |
596 | 890c2065 | Sofia Papagiannaki | # replace displayname with uuid
|
597 | 469d0997 | Georgios D. Tsoukalas | if TRANSLATE_UUIDS:
|
598 | 469d0997 | Georgios D. Tsoukalas | try:
|
599 | 469d0997 | Georgios D. Tsoukalas | ret['read'] = [replace_permissions_displayname(
|
600 | 469d0997 | Georgios D. Tsoukalas | getattr(request, 'token', None), x) \ |
601 | 469d0997 | Georgios D. Tsoukalas | for x in ret.get('read', [])] |
602 | 469d0997 | Georgios D. Tsoukalas | ret['write'] = [replace_permissions_displayname(
|
603 | 469d0997 | Georgios D. Tsoukalas | getattr(request, 'token', None), x) \ |
604 | 469d0997 | Georgios D. Tsoukalas | for x in ret.get('write', [])] |
605 | 469d0997 | Georgios D. Tsoukalas | except ItemNotExists, e:
|
606 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest(
|
607 | 469d0997 | Georgios D. Tsoukalas | 'Bad X-Object-Sharing header value: unknown account: %s' % e)
|
608 | 2715ade4 | Sofia Papagiannaki | |
609 | 21a8a6ff | Antony Chazapis | # Keep duplicates only in write list.
|
610 | 2715ade4 | Sofia Papagiannaki | dups = [x for x in ret.get( |
611 | 2715ade4 | Sofia Papagiannaki | 'read', []) if x in ret.get('write', []) and x != '*'] |
612 | 21a8a6ff | Antony Chazapis | if dups:
|
613 | 21a8a6ff | Antony Chazapis | for x in dups: |
614 | 21a8a6ff | Antony Chazapis | ret['read'].remove(x)
|
615 | 21a8a6ff | Antony Chazapis | if len(ret['read']) == 0: |
616 | 21a8a6ff | Antony Chazapis | del(ret['read']) |
617 | 2715ade4 | Sofia Papagiannaki | |
618 | 3436eeb0 | Antony Chazapis | return ret
|
619 | 3436eeb0 | Antony Chazapis | |
620 | 2715ade4 | Sofia Papagiannaki | |
621 | 3ab38c43 | Antony Chazapis | def get_public(request): |
622 | 3ab38c43 | Antony Chazapis | """Parse an X-Object-Public header from the request.
|
623 | 2715ade4 | Sofia Papagiannaki |
|
624 | 3ab38c43 | Antony Chazapis | Raises BadRequest on error.
|
625 | 3ab38c43 | Antony Chazapis | """
|
626 | 2715ade4 | Sofia Papagiannaki | |
627 | 3ab38c43 | Antony Chazapis | public = request.META.get('HTTP_X_OBJECT_PUBLIC')
|
628 | 3ab38c43 | Antony Chazapis | if public is None: |
629 | 3ab38c43 | Antony Chazapis | return None |
630 | 2715ade4 | Sofia Papagiannaki | |
631 | 3ab38c43 | Antony Chazapis | public = public.replace(' ', '').lower() |
632 | 3ab38c43 | Antony Chazapis | if public == 'true': |
633 | 3ab38c43 | Antony Chazapis | return True |
634 | 3ab38c43 | Antony Chazapis | elif public == 'false' or public == '': |
635 | 3ab38c43 | Antony Chazapis | return False |
636 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Bad X-Object-Public header value') |
637 | 3ab38c43 | Antony Chazapis | |
638 | 2715ade4 | Sofia Papagiannaki | |
639 | b956618e | Antony Chazapis | def raw_input_socket(request): |
640 | 58a6c894 | Antony Chazapis | """Return the socket for reading the rest of the request."""
|
641 | 2715ade4 | Sofia Papagiannaki | |
642 | b956618e | Antony Chazapis | server_software = request.META.get('SERVER_SOFTWARE')
|
643 | fc1b2a75 | Antony Chazapis | if server_software and server_software.startswith('mod_python'): |
644 | b956618e | Antony Chazapis | return request._req
|
645 | fc1b2a75 | Antony Chazapis | if 'wsgi.input' in request.environ: |
646 | fc1b2a75 | Antony Chazapis | return request.environ['wsgi.input'] |
647 | 08de868d | Antony Chazapis | raise NotImplemented('Unknown server software') |
648 | b956618e | Antony Chazapis | |
649 | 2715ade4 | Sofia Papagiannaki | MAX_UPLOAD_SIZE = 5 * (1024 * 1024 * 1024) # 5GB |
650 | 2715ade4 | Sofia Papagiannaki | |
651 | b956618e | Antony Chazapis | |
652 | c032f34d | Antony Chazapis | def socket_read_iterator(request, length=0, blocksize=4096): |
653 | 58a6c894 | Antony Chazapis | """Return a maximum of blocksize data read from the socket in each iteration.
|
654 | 2715ade4 | Sofia Papagiannaki |
|
655 | 22dab079 | Antony Chazapis | Read up to 'length'. If 'length' is negative, will attempt a chunked read.
|
656 | b956618e | Antony Chazapis | The maximum ammount of data read is controlled by MAX_UPLOAD_SIZE.
|
657 | b956618e | Antony Chazapis | """
|
658 | 2715ade4 | Sofia Papagiannaki | |
659 | c032f34d | Antony Chazapis | sock = raw_input_socket(request) |
660 | 2715ade4 | Sofia Papagiannaki | if length < 0: # Chunked transfers |
661 | c032f34d | Antony Chazapis | # Small version (server does the dechunking).
|
662 | 032dc768 | Antony Chazapis | if request.environ.get('mod_wsgi.input_chunked', None) or request.META['SERVER_SOFTWARE'].startswith('gunicorn'): |
663 | c032f34d | Antony Chazapis | while length < MAX_UPLOAD_SIZE:
|
664 | c032f34d | Antony Chazapis | data = sock.read(blocksize) |
665 | c032f34d | Antony Chazapis | if data == '': |
666 | c032f34d | Antony Chazapis | return
|
667 | c032f34d | Antony Chazapis | yield data
|
668 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Maximum size is reached') |
669 | 2715ade4 | Sofia Papagiannaki | |
670 | c032f34d | Antony Chazapis | # Long version (do the dechunking).
|
671 | 22dab079 | Antony Chazapis | data = ''
|
672 | b956618e | Antony Chazapis | while length < MAX_UPLOAD_SIZE:
|
673 | 22dab079 | Antony Chazapis | # Get chunk size.
|
674 | 22dab079 | Antony Chazapis | if hasattr(sock, 'readline'): |
675 | 22dab079 | Antony Chazapis | chunk_length = sock.readline() |
676 | 22dab079 | Antony Chazapis | else:
|
677 | 22dab079 | Antony Chazapis | chunk_length = ''
|
678 | 22dab079 | Antony Chazapis | while chunk_length[-1:] != '\n': |
679 | 22dab079 | Antony Chazapis | chunk_length += sock.read(1)
|
680 | 22dab079 | Antony Chazapis | chunk_length.strip() |
681 | b956618e | Antony Chazapis | pos = chunk_length.find(';')
|
682 | b956618e | Antony Chazapis | if pos >= 0: |
683 | b956618e | Antony Chazapis | chunk_length = chunk_length[:pos] |
684 | b956618e | Antony Chazapis | try:
|
685 | b956618e | Antony Chazapis | chunk_length = int(chunk_length, 16) |
686 | bd40abfa | Christos Stavrakakis | except Exception: |
687 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Bad chunk size') |
688 | 2715ade4 | Sofia Papagiannaki | # TODO: Change to something more appropriate.
|
689 | 22dab079 | Antony Chazapis | # Check if done.
|
690 | b956618e | Antony Chazapis | if chunk_length == 0: |
691 | 22dab079 | Antony Chazapis | if len(data) > 0: |
692 | 22dab079 | Antony Chazapis | yield data
|
693 | b956618e | Antony Chazapis | return
|
694 | 22dab079 | Antony Chazapis | # Get the actual data.
|
695 | b956618e | Antony Chazapis | while chunk_length > 0: |
696 | 22dab079 | Antony Chazapis | chunk = sock.read(min(chunk_length, blocksize))
|
697 | 22dab079 | Antony Chazapis | chunk_length -= len(chunk)
|
698 | 623a0cf4 | Sofia Papagiannaki | if length > 0: |
699 | 623a0cf4 | Sofia Papagiannaki | length += len(chunk)
|
700 | 22dab079 | Antony Chazapis | data += chunk |
701 | 22dab079 | Antony Chazapis | if len(data) >= blocksize: |
702 | 22dab079 | Antony Chazapis | ret = data[:blocksize] |
703 | 22dab079 | Antony Chazapis | data = data[blocksize:] |
704 | 22dab079 | Antony Chazapis | yield ret
|
705 | 2715ade4 | Sofia Papagiannaki | sock.read(2) # CRLF |
706 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Maximum size is reached') |
707 | b956618e | Antony Chazapis | else:
|
708 | b956618e | Antony Chazapis | if length > MAX_UPLOAD_SIZE:
|
709 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Maximum size is reached') |
710 | b956618e | Antony Chazapis | while length > 0: |
711 | b956618e | Antony Chazapis | data = sock.read(min(length, blocksize))
|
712 | 7b25e082 | Antony Chazapis | if not data: |
713 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest()
|
714 | b956618e | Antony Chazapis | length -= len(data)
|
715 | b956618e | Antony Chazapis | yield data
|
716 | b956618e | Antony Chazapis | |
717 | 2715ade4 | Sofia Papagiannaki | |
718 | 817890f2 | Antony Chazapis | class SaveToBackendHandler(FileUploadHandler): |
719 | 817890f2 | Antony Chazapis | """Handle a file from an HTML form the django way."""
|
720 | 2715ade4 | Sofia Papagiannaki | |
721 | 817890f2 | Antony Chazapis | def __init__(self, request=None): |
722 | 817890f2 | Antony Chazapis | super(SaveToBackendHandler, self).__init__(request) |
723 | 817890f2 | Antony Chazapis | self.backend = request.backend
|
724 | 2715ade4 | Sofia Papagiannaki | |
725 | 817890f2 | Antony Chazapis | def put_data(self, length): |
726 | 817890f2 | Antony Chazapis | if len(self.data) >= length: |
727 | 817890f2 | Antony Chazapis | block = self.data[:length]
|
728 | 817890f2 | Antony Chazapis | self.file.hashmap.append(self.backend.put_block(block)) |
729 | 817890f2 | Antony Chazapis | self.md5.update(block)
|
730 | 817890f2 | Antony Chazapis | self.data = self.data[length:] |
731 | 2715ade4 | Sofia Papagiannaki | |
732 | 817890f2 | Antony Chazapis | def new_file(self, field_name, file_name, content_type, content_length, charset=None): |
733 | 2715ade4 | Sofia Papagiannaki | self.md5 = hashlib.md5()
|
734 | 817890f2 | Antony Chazapis | self.data = '' |
735 | 2715ade4 | Sofia Papagiannaki | self.file = UploadedFile(
|
736 | 2715ade4 | Sofia Papagiannaki | name=file_name, content_type=content_type, charset=charset) |
737 | 817890f2 | Antony Chazapis | self.file.size = 0 |
738 | 817890f2 | Antony Chazapis | self.file.hashmap = []
|
739 | 2715ade4 | Sofia Papagiannaki | |
740 | 817890f2 | Antony Chazapis | def receive_data_chunk(self, raw_data, start): |
741 | 817890f2 | Antony Chazapis | self.data += raw_data
|
742 | 817890f2 | Antony Chazapis | self.file.size += len(raw_data) |
743 | 817890f2 | Antony Chazapis | self.put_data(self.request.backend.block_size) |
744 | 817890f2 | Antony Chazapis | return None |
745 | 2715ade4 | Sofia Papagiannaki | |
746 | 817890f2 | Antony Chazapis | def file_complete(self, file_size): |
747 | 817890f2 | Antony Chazapis | l = len(self.data) |
748 | 817890f2 | Antony Chazapis | if l > 0: |
749 | 817890f2 | Antony Chazapis | self.put_data(l)
|
750 | 817890f2 | Antony Chazapis | self.file.etag = self.md5.hexdigest().lower() |
751 | 817890f2 | Antony Chazapis | return self.file |
752 | 817890f2 | Antony Chazapis | |
753 | 2715ade4 | Sofia Papagiannaki | |
754 | 22dab079 | Antony Chazapis | class ObjectWrapper(object): |
755 | 58a6c894 | Antony Chazapis | """Return the object's data block-per-block in each iteration.
|
756 | 2715ade4 | Sofia Papagiannaki |
|
757 | 22dab079 | Antony Chazapis | Read from the object using the offset and length provided in each entry of the range list.
|
758 | 22dab079 | Antony Chazapis | """
|
759 | 2715ade4 | Sofia Papagiannaki | |
760 | 39593b2b | Giorgos Verigakis | def __init__(self, backend, ranges, sizes, hashmaps, boundary): |
761 | 39593b2b | Giorgos Verigakis | self.backend = backend
|
762 | 22dab079 | Antony Chazapis | self.ranges = ranges
|
763 | 8cb45c13 | Antony Chazapis | self.sizes = sizes
|
764 | 8cb45c13 | Antony Chazapis | self.hashmaps = hashmaps
|
765 | 22dab079 | Antony Chazapis | self.boundary = boundary
|
766 | 8cb45c13 | Antony Chazapis | self.size = sum(self.sizes) |
767 | 2715ade4 | Sofia Papagiannaki | |
768 | 8cb45c13 | Antony Chazapis | self.file_index = 0 |
769 | 8cb45c13 | Antony Chazapis | self.block_index = 0 |
770 | 8cb45c13 | Antony Chazapis | self.block_hash = -1 |
771 | 22dab079 | Antony Chazapis | self.block = '' |
772 | 2715ade4 | Sofia Papagiannaki | |
773 | 22dab079 | Antony Chazapis | self.range_index = -1 |
774 | 22dab079 | Antony Chazapis | self.offset, self.length = self.ranges[0] |
775 | 2715ade4 | Sofia Papagiannaki | |
776 | 22dab079 | Antony Chazapis | def __iter__(self): |
777 | 22dab079 | Antony Chazapis | return self |
778 | 2715ade4 | Sofia Papagiannaki | |
779 | 22dab079 | Antony Chazapis | def part_iterator(self): |
780 | 22dab079 | Antony Chazapis | if self.length > 0: |
781 | 8cb45c13 | Antony Chazapis | # Get the file for the current offset.
|
782 | 8cb45c13 | Antony Chazapis | file_size = self.sizes[self.file_index] |
783 | 8cb45c13 | Antony Chazapis | while self.offset >= file_size: |
784 | 8cb45c13 | Antony Chazapis | self.offset -= file_size
|
785 | 8cb45c13 | Antony Chazapis | self.file_index += 1 |
786 | 8cb45c13 | Antony Chazapis | file_size = self.sizes[self.file_index] |
787 | 2715ade4 | Sofia Papagiannaki | |
788 | 8cb45c13 | Antony Chazapis | # Get the block for the current position.
|
789 | 39593b2b | Giorgos Verigakis | self.block_index = int(self.offset / self.backend.block_size) |
790 | 8cb45c13 | Antony Chazapis | if self.block_hash != self.hashmaps[self.file_index][self.block_index]: |
791 | 2715ade4 | Sofia Papagiannaki | self.block_hash = self.hashmaps[ |
792 | 2715ade4 | Sofia Papagiannaki | self.file_index][self.block_index] |
793 | 22dab079 | Antony Chazapis | try:
|
794 | 39593b2b | Giorgos Verigakis | self.block = self.backend.get_block(self.block_hash) |
795 | 7efc9f86 | Sofia Papagiannaki | except ItemNotExists:
|
796 | bd40abfa | Christos Stavrakakis | raise faults.ItemNotFound('Block does not exist') |
797 | 2715ade4 | Sofia Papagiannaki | |
798 | 22dab079 | Antony Chazapis | # Get the data from the block.
|
799 | 39593b2b | Giorgos Verigakis | bo = self.offset % self.backend.block_size |
800 | c9865fe1 | Antony Chazapis | bs = self.backend.block_size
|
801 | 45cf0bc8 | Antony Chazapis | if (self.block_index == len(self.hashmaps[self.file_index]) - 1 and |
802 | 2715ade4 | Sofia Papagiannaki | self.sizes[self.file_index] % self.backend.block_size): |
803 | c9865fe1 | Antony Chazapis | bs = self.sizes[self.file_index] % self.backend.block_size |
804 | c9865fe1 | Antony Chazapis | bl = min(self.length, bs - bo) |
805 | 22dab079 | Antony Chazapis | data = self.block[bo:bo + bl]
|
806 | 22dab079 | Antony Chazapis | self.offset += bl
|
807 | 22dab079 | Antony Chazapis | self.length -= bl
|
808 | 22dab079 | Antony Chazapis | return data
|
809 | 22dab079 | Antony Chazapis | else:
|
810 | 22dab079 | Antony Chazapis | raise StopIteration |
811 | 2715ade4 | Sofia Papagiannaki | |
812 | 22dab079 | Antony Chazapis | def next(self): |
813 | 22dab079 | Antony Chazapis | if len(self.ranges) == 1: |
814 | 22dab079 | Antony Chazapis | return self.part_iterator() |
815 | 22dab079 | Antony Chazapis | if self.range_index == len(self.ranges): |
816 | 22dab079 | Antony Chazapis | raise StopIteration |
817 | 22dab079 | Antony Chazapis | try:
|
818 | 22dab079 | Antony Chazapis | if self.range_index == -1: |
819 | 22dab079 | Antony Chazapis | raise StopIteration |
820 | 22dab079 | Antony Chazapis | return self.part_iterator() |
821 | 22dab079 | Antony Chazapis | except StopIteration: |
822 | 22dab079 | Antony Chazapis | self.range_index += 1 |
823 | 22dab079 | Antony Chazapis | out = [] |
824 | 22dab079 | Antony Chazapis | if self.range_index < len(self.ranges): |
825 | 22dab079 | Antony Chazapis | # Part header.
|
826 | 22dab079 | Antony Chazapis | self.offset, self.length = self.ranges[self.range_index] |
827 | 8cb45c13 | Antony Chazapis | self.file_index = 0 |
828 | 22dab079 | Antony Chazapis | if self.range_index > 0: |
829 | 22dab079 | Antony Chazapis | out.append('')
|
830 | 22dab079 | Antony Chazapis | out.append('--' + self.boundary) |
831 | 2715ade4 | Sofia Papagiannaki | out.append('Content-Range: bytes %d-%d/%d' % (
|
832 | 2715ade4 | Sofia Papagiannaki | self.offset, self.offset + self.length - 1, self.size)) |
833 | 22dab079 | Antony Chazapis | out.append('Content-Transfer-Encoding: binary')
|
834 | 22dab079 | Antony Chazapis | out.append('')
|
835 | 22dab079 | Antony Chazapis | out.append('')
|
836 | 22dab079 | Antony Chazapis | return '\r\n'.join(out) |
837 | 22dab079 | Antony Chazapis | else:
|
838 | 22dab079 | Antony Chazapis | # Footer.
|
839 | 22dab079 | Antony Chazapis | out.append('')
|
840 | 22dab079 | Antony Chazapis | out.append('--' + self.boundary + '--') |
841 | 22dab079 | Antony Chazapis | out.append('')
|
842 | 22dab079 | Antony Chazapis | return '\r\n'.join(out) |
843 | 22dab079 | Antony Chazapis | |
844 | 2715ade4 | Sofia Papagiannaki | |
845 | 8cb45c13 | Antony Chazapis | def object_data_response(request, sizes, hashmaps, meta, public=False): |
846 | 7bef5750 | Antony Chazapis | """Get the HttpResponse object for replying with the object's data."""
|
847 | 2715ade4 | Sofia Papagiannaki | |
848 | 7bef5750 | Antony Chazapis | # Range handling.
|
849 | 8cb45c13 | Antony Chazapis | size = sum(sizes)
|
850 | 7bef5750 | Antony Chazapis | ranges = get_range(request, size) |
851 | 7bef5750 | Antony Chazapis | if ranges is None: |
852 | 7bef5750 | Antony Chazapis | ranges = [(0, size)]
|
853 | 7bef5750 | Antony Chazapis | ret = 200
|
854 | 7bef5750 | Antony Chazapis | else:
|
855 | 7bef5750 | Antony Chazapis | check = [True for offset, length in ranges if |
856 | 2715ade4 | Sofia Papagiannaki | length <= 0 or length > size or |
857 | 2715ade4 | Sofia Papagiannaki | offset < 0 or offset >= size or |
858 | 2715ade4 | Sofia Papagiannaki | offset + length > size] |
859 | 7bef5750 | Antony Chazapis | if len(check) > 0: |
860 | bd40abfa | Christos Stavrakakis | raise faults.RangeNotSatisfiable('Requested range exceeds object limits') |
861 | 7bef5750 | Antony Chazapis | ret = 206
|
862 | 15d465b8 | Antony Chazapis | if_range = request.META.get('HTTP_IF_RANGE')
|
863 | 15d465b8 | Antony Chazapis | if if_range:
|
864 | 6d1e6dce | Sofia Papagiannaki | try:
|
865 | 15d465b8 | Antony Chazapis | # Modification time has passed instead.
|
866 | 6d1e6dce | Sofia Papagiannaki | last_modified = parse_http_date(if_range) |
867 | 6d1e6dce | Sofia Papagiannaki | if last_modified != meta['modified']: |
868 | 6d1e6dce | Sofia Papagiannaki | ranges = [(0, size)]
|
869 | 6d1e6dce | Sofia Papagiannaki | ret = 200
|
870 | 6d1e6dce | Sofia Papagiannaki | except ValueError: |
871 | 33b4e4a6 | Antony Chazapis | if if_range != meta['checksum']: |
872 | 6d1e6dce | Sofia Papagiannaki | ranges = [(0, size)]
|
873 | 6d1e6dce | Sofia Papagiannaki | ret = 200
|
874 | 2715ade4 | Sofia Papagiannaki | |
875 | 7bef5750 | Antony Chazapis | if ret == 206 and len(ranges) > 1: |
876 | 7bef5750 | Antony Chazapis | boundary = uuid.uuid4().hex |
877 | 7bef5750 | Antony Chazapis | else:
|
878 | 7bef5750 | Antony Chazapis | boundary = ''
|
879 | 39593b2b | Giorgos Verigakis | wrapper = ObjectWrapper(request.backend, ranges, sizes, hashmaps, boundary) |
880 | 7bef5750 | Antony Chazapis | response = HttpResponse(wrapper, status=ret) |
881 | 469d0997 | Georgios D. Tsoukalas | put_object_headers( |
882 | 469d0997 | Georgios D. Tsoukalas | response, meta, restricted=public, token=getattr(request, 'token', None)) |
883 | 7bef5750 | Antony Chazapis | if ret == 206: |
884 | 7bef5750 | Antony Chazapis | if len(ranges) == 1: |
885 | 7bef5750 | Antony Chazapis | offset, length = ranges[0]
|
886 | 2715ade4 | Sofia Papagiannaki | response[ |
887 | 2715ade4 | Sofia Papagiannaki | 'Content-Length'] = length # Update with the correct length. |
888 | 2715ade4 | Sofia Papagiannaki | response['Content-Range'] = 'bytes %d-%d/%d' % ( |
889 | 2715ade4 | Sofia Papagiannaki | offset, offset + length - 1, size)
|
890 | 7bef5750 | Antony Chazapis | else:
|
891 | 7bef5750 | Antony Chazapis | del(response['Content-Length']) |
892 | 2715ade4 | Sofia Papagiannaki | response['Content-Type'] = 'multipart/byteranges; boundary=%s' % ( |
893 | 2715ade4 | Sofia Papagiannaki | boundary,) |
894 | 7bef5750 | Antony Chazapis | return response
|
895 | 7bef5750 | Antony Chazapis | |
896 | 2715ade4 | Sofia Papagiannaki | |
897 | 39593b2b | Giorgos Verigakis | def put_object_block(request, hashmap, data, offset): |
898 | cb146cf9 | Antony Chazapis | """Put one block of data at the given offset."""
|
899 | 2715ade4 | Sofia Papagiannaki | |
900 | 39593b2b | Giorgos Verigakis | bi = int(offset / request.backend.block_size)
|
901 | 39593b2b | Giorgos Verigakis | bo = offset % request.backend.block_size |
902 | 39593b2b | Giorgos Verigakis | bl = min(len(data), request.backend.block_size - bo) |
903 | cb146cf9 | Antony Chazapis | if bi < len(hashmap): |
904 | 39593b2b | Giorgos Verigakis | hashmap[bi] = request.backend.update_block(hashmap[bi], data[:bl], bo) |
905 | cb146cf9 | Antony Chazapis | else:
|
906 | 39593b2b | Giorgos Verigakis | hashmap.append(request.backend.put_block(('\x00' * bo) + data[:bl]))
|
907 | 2715ade4 | Sofia Papagiannaki | return bl # Return ammount of data written. |
908 | 2715ade4 | Sofia Papagiannaki | |
909 | cb146cf9 | Antony Chazapis | |
910 | b3155065 | Antony Chazapis | def hashmap_md5(backend, hashmap, size): |
911 | cddcf432 | chazapis | """Produce the MD5 sum from the data in the hashmap."""
|
912 | 2715ade4 | Sofia Papagiannaki | |
913 | cddcf432 | chazapis | # TODO: Search backend for the MD5 of another object with the same hashmap and size...
|
914 | cddcf432 | chazapis | md5 = hashlib.md5() |
915 | b3155065 | Antony Chazapis | bs = backend.block_size |
916 | cddcf432 | chazapis | for bi, hash in enumerate(hashmap): |
917 | 2715ade4 | Sofia Papagiannaki | data = backend.get_block(hash) # Blocks come in padded. |
918 | cddcf432 | chazapis | if bi == len(hashmap) - 1: |
919 | c9865fe1 | Antony Chazapis | data = data[:size % bs] |
920 | c9865fe1 | Antony Chazapis | md5.update(data) |
921 | cddcf432 | chazapis | return md5.hexdigest().lower()
|
922 | 49133392 | Antony Chazapis | |
923 | 2715ade4 | Sofia Papagiannaki | |
924 | af7bb62f | Antony Chazapis | def simple_list_response(request, l): |
925 | 6b6b6c1e | Antony Chazapis | if request.serialization == 'text': |
926 | 6b6b6c1e | Antony Chazapis | return '\n'.join(l) + '\n' |
927 | 6b6b6c1e | Antony Chazapis | if request.serialization == 'xml': |
928 | af7bb62f | Antony Chazapis | return render_to_string('items.xml', {'items': l}) |
929 | 6b6b6c1e | Antony Chazapis | if request.serialization == 'json': |
930 | 6b6b6c1e | Antony Chazapis | return json.dumps(l)
|
931 | 6b6b6c1e | Antony Chazapis | |
932 | 35d42381 | Vangelis Koukis | |
933 | edb7875c | Christos Stavrakakis | from pithos.backends.util import PithosBackendPool |
934 | 61c5b615 | Sofia Papagiannaki | |
935 | 47462eda | Filippos Giannakos | if RADOS_STORAGE:
|
936 | 47462eda | Filippos Giannakos | BLOCK_PARAMS = { 'mappool': RADOS_POOL_MAPS,
|
937 | 47462eda | Filippos Giannakos | 'blockpool': RADOS_POOL_BLOCKS,
|
938 | 47462eda | Filippos Giannakos | } |
939 | 47462eda | Filippos Giannakos | else:
|
940 | 47462eda | Filippos Giannakos | BLOCK_PARAMS = { 'mappool': None, |
941 | 47462eda | Filippos Giannakos | 'blockpool': None, |
942 | 47462eda | Filippos Giannakos | } |
943 | 35d42381 | Vangelis Koukis | |
944 | 761c2b3c | root | |
945 | b336e6fa | Georgios D. Tsoukalas | _pithos_backend_pool = PithosBackendPool( |
946 | 61c5b615 | Sofia Papagiannaki | size=BACKEND_POOL_SIZE, |
947 | b336e6fa | Georgios D. Tsoukalas | db_module=BACKEND_DB_MODULE, |
948 | b336e6fa | Georgios D. Tsoukalas | db_connection=BACKEND_DB_CONNECTION, |
949 | b336e6fa | Georgios D. Tsoukalas | block_module=BACKEND_BLOCK_MODULE, |
950 | b336e6fa | Georgios D. Tsoukalas | block_path=BACKEND_BLOCK_PATH, |
951 | b336e6fa | Georgios D. Tsoukalas | block_umask=BACKEND_BLOCK_UMASK, |
952 | b336e6fa | Georgios D. Tsoukalas | queue_module=BACKEND_QUEUE_MODULE, |
953 | b336e6fa | Georgios D. Tsoukalas | queue_hosts=BACKEND_QUEUE_HOSTS, |
954 | b336e6fa | Georgios D. Tsoukalas | queue_exchange=BACKEND_QUEUE_EXCHANGE, |
955 | b336e6fa | Georgios D. Tsoukalas | quotaholder_enabled=USE_QUOTAHOLDER, |
956 | b336e6fa | Georgios D. Tsoukalas | quotaholder_url=QUOTAHOLDER_URL, |
957 | b336e6fa | Georgios D. Tsoukalas | quotaholder_token=QUOTAHOLDER_TOKEN, |
958 | b336e6fa | Georgios D. Tsoukalas | quotaholder_client_poolsize=QUOTAHOLDER_POOLSIZE, |
959 | b336e6fa | Georgios D. Tsoukalas | free_versioning=BACKEND_FREE_VERSIONING, |
960 | 56f3c759 | Sofia Papagiannaki | block_params=BLOCK_PARAMS, |
961 | 4a105ce2 | Sofia Papagiannaki | public_url_security=PUBLIC_URL_SECURITY, |
962 | 56f3c759 | Sofia Papagiannaki | public_url_alphabet=PUBLIC_URL_ALPHABET) |
963 | 35d42381 | Vangelis Koukis | |
964 | 65bbcd43 | Christos Stavrakakis | |
965 | 35d42381 | Vangelis Koukis | def get_backend(): |
966 | edb7875c | Christos Stavrakakis | backend = _pithos_backend_pool.pool_get() |
967 | edb7875c | Christos Stavrakakis | backend.default_policy['quota'] = BACKEND_QUOTA
|
968 | edb7875c | Christos Stavrakakis | backend.default_policy['versioning'] = BACKEND_VERSIONING
|
969 | f77b1da9 | Stratos Psomadakis | backend.messages = [] |
970 | edb7875c | Christos Stavrakakis | return backend
|
971 | 35d42381 | Vangelis Koukis | |
972 | 35d42381 | Vangelis Koukis | |
973 | 9fefc052 | Antony Chazapis | def update_request_headers(request): |
974 | 9fefc052 | Antony Chazapis | # Handle URL-encoded keys and values.
|
975 | 2715ade4 | Sofia Papagiannaki | meta = dict([(
|
976 | 2715ade4 | Sofia Papagiannaki | k, v) for k, v in request.META.iteritems() if k.startswith('HTTP_')]) |
977 | 88283e9e | Antony Chazapis | for k, v in meta.iteritems(): |
978 | 88283e9e | Antony Chazapis | try:
|
979 | 88283e9e | Antony Chazapis | k.decode('ascii')
|
980 | 88283e9e | Antony Chazapis | v.decode('ascii')
|
981 | 88283e9e | Antony Chazapis | except UnicodeDecodeError: |
982 | bd40abfa | Christos Stavrakakis | raise faults.BadRequest('Bad character in headers.') |
983 | 88283e9e | Antony Chazapis | if '%' in k or '%' in v: |
984 | 88283e9e | Antony Chazapis | del(request.META[k])
|
985 | 2715ade4 | Sofia Papagiannaki | request.META[unquote(k)] = smart_unicode(unquote( |
986 | 2715ade4 | Sofia Papagiannaki | v), strings_only=True)
|
987 | 2715ade4 | Sofia Papagiannaki | |
988 | 9fefc052 | Antony Chazapis | |
989 | b956618e | Antony Chazapis | def update_response_headers(request, response): |
990 | 9fefc052 | Antony Chazapis | if (not response.has_header('Content-Length') and |
991 | 9fefc052 | Antony Chazapis | not (response.has_header('Content-Type') and |
992 | 9fefc052 | Antony Chazapis | response['Content-Type'].startswith('multipart/byteranges'))): |
993 | b980169d | Antony Chazapis | response['Content-Length'] = len(response.content) |
994 | 2715ade4 | Sofia Papagiannaki | |
995 | 9fefc052 | Antony Chazapis | # URL-encode unicode in headers.
|
996 | 9fefc052 | Antony Chazapis | meta = response.items() |
997 | 9fefc052 | Antony Chazapis | for k, v in meta: |
998 | 88283e9e | Antony Chazapis | if (k.startswith('X-Account-') or k.startswith('X-Container-') or |
999 | 2715ade4 | Sofia Papagiannaki | k.startswith('X-Object-') or k.startswith('Content-')): |
1000 | 9fefc052 | Antony Chazapis | del(response[k])
|
1001 | 88283e9e | Antony Chazapis | response[quote(k)] = quote(v, safe='/=,:@; ')
|
1002 | b956618e | Antony Chazapis | |
1003 | 2715ade4 | Sofia Papagiannaki | |
1004 | 65bbcd43 | Christos Stavrakakis | def get_pithos_usage(token): |
1005 | 65bbcd43 | Christos Stavrakakis | """Get Pithos Usage from astakos."""
|
1006 | 6dd0fc7c | Christos Stavrakakis | astakos_url = ASTAKOS_URL + "im/authenticate"
|
1007 | 4ab620b6 | Christos Stavrakakis | user_info = user_for_token(token, astakos_url, usage=True)
|
1008 | 65bbcd43 | Christos Stavrakakis | usage = user_info.get("usage", [])
|
1009 | c846fad1 | Sofia Papagiannaki | for u in usage: |
1010 | c846fad1 | Sofia Papagiannaki | if u.get('name') == 'pithos+.diskspace': |
1011 | c846fad1 | Sofia Papagiannaki | return u
|
1012 | c846fad1 | Sofia Papagiannaki | |
1013 | 2715ade4 | Sofia Papagiannaki | |
1014 | 65bbcd43 | Christos Stavrakakis | def api_method(http_method=None, user_required=True, logger=None, |
1015 | 65bbcd43 | Christos Stavrakakis | format_allowed=False):
|
1016 | b956618e | Antony Chazapis | def decorator(func): |
1017 | 65bbcd43 | Christos Stavrakakis | @api.api_method(http_method=http_method, user_required=user_required,
|
1018 | 65bbcd43 | Christos Stavrakakis | logger=logger, format_allowed=format_allowed) |
1019 | b956618e | Antony Chazapis | @wraps(func)
|
1020 | b956618e | Antony Chazapis | def wrapper(request, *args, **kwargs): |
1021 | 65bbcd43 | Christos Stavrakakis | # The args variable may contain up to (account, container, object).
|
1022 | 65bbcd43 | Christos Stavrakakis | if len(args) > 1 and len(args[1]) > 256: |
1023 | 65bbcd43 | Christos Stavrakakis | raise faults.BadRequest("Container name too large") |
1024 | 65bbcd43 | Christos Stavrakakis | if len(args) > 2 and len(args[2]) > 1024: |
1025 | 65bbcd43 | Christos Stavrakakis | raise faults.BadRequest('Object name too large.') |
1026 | 2715ade4 | Sofia Papagiannaki | |
1027 | 65bbcd43 | Christos Stavrakakis | try:
|
1028 | 65bbcd43 | Christos Stavrakakis | # Add a PithosBackend as attribute of the request object
|
1029 | 228de81b | Antony Chazapis | request.backend = get_backend() |
1030 | 65bbcd43 | Christos Stavrakakis | # Many API method expect thet X-Auth-Token in request,token
|
1031 | 65bbcd43 | Christos Stavrakakis | request.token = request.x_auth_token |
1032 | 65bbcd43 | Christos Stavrakakis | update_request_headers(request) |
1033 | b956618e | Antony Chazapis | response = func(request, *args, **kwargs) |
1034 | b956618e | Antony Chazapis | update_response_headers(request, response) |
1035 | b956618e | Antony Chazapis | return response
|
1036 | 7b25e082 | Antony Chazapis | finally:
|
1037 | 65bbcd43 | Christos Stavrakakis | # Always close PithosBackend connection
|
1038 | 65bbcd43 | Christos Stavrakakis | if getattr(request, "backend", None) is not None: |
1039 | d14fe290 | Antony Chazapis | request.backend.close() |
1040 | b956618e | Antony Chazapis | return wrapper
|
1041 | b956618e | Antony Chazapis | return decorator |