root / snf-cyclades-app / synnefo / plankton / backend.py @ aed77afe
History | View | Annotate | Download (15.7 kB)
1 | c34de90f | Giorgos Verigakis | # Copyright 2011 GRNET S.A. All rights reserved.
|
---|---|---|---|
2 | c34de90f | Giorgos Verigakis | #
|
3 | c34de90f | Giorgos Verigakis | # Redistribution and use in source and binary forms, with or
|
4 | c34de90f | Giorgos Verigakis | # without modification, are permitted provided that the following
|
5 | c34de90f | Giorgos Verigakis | # conditions are met:
|
6 | c34de90f | Giorgos Verigakis | #
|
7 | c34de90f | Giorgos Verigakis | # 1. Redistributions of source code must retain the above
|
8 | c34de90f | Giorgos Verigakis | # copyright notice, this list of conditions and the following
|
9 | c34de90f | Giorgos Verigakis | # disclaimer.
|
10 | c34de90f | Giorgos Verigakis | #
|
11 | c34de90f | Giorgos Verigakis | # 2. Redistributions in binary form must reproduce the above
|
12 | c34de90f | Giorgos Verigakis | # copyright notice, this list of conditions and the following
|
13 | c34de90f | Giorgos Verigakis | # disclaimer in the documentation and/or other materials
|
14 | c34de90f | Giorgos Verigakis | # provided with the distribution.
|
15 | c34de90f | Giorgos Verigakis | #
|
16 | c34de90f | Giorgos Verigakis | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
|
17 | c34de90f | Giorgos Verigakis | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
18 | c34de90f | Giorgos Verigakis | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
19 | c34de90f | Giorgos Verigakis | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
|
20 | c34de90f | Giorgos Verigakis | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
21 | c34de90f | Giorgos Verigakis | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
22 | c34de90f | Giorgos Verigakis | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
23 | c34de90f | Giorgos Verigakis | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
24 | c34de90f | Giorgos Verigakis | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
25 | c34de90f | Giorgos Verigakis | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
26 | c34de90f | Giorgos Verigakis | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
27 | c34de90f | Giorgos Verigakis | # POSSIBILITY OF SUCH DAMAGE.
|
28 | c34de90f | Giorgos Verigakis | #
|
29 | c34de90f | Giorgos Verigakis | # The views and conclusions contained in the software and
|
30 | c34de90f | Giorgos Verigakis | # documentation are those of the authors and should not be
|
31 | c34de90f | Giorgos Verigakis | # interpreted as representing official policies, either expressed
|
32 | c34de90f | Giorgos Verigakis | # or implied, of GRNET S.A.
|
33 | c34de90f | Giorgos Verigakis | |
34 | f5afd99b | Giorgos Verigakis | """
|
35 | bfd9f988 | Giorgos Verigakis | The Plankton attributes are the following:
|
36 | 0a72907b | Giorgos Verigakis | - checksum: the 'hash' meta
|
37 | 7bd1d3b5 | Giorgos Verigakis | - container_format: stored as a user meta
|
38 | 0a72907b | Giorgos Verigakis | - created_at: the 'modified' meta of the first version
|
39 | 0a72907b | Giorgos Verigakis | - deleted_at: the timestamp of the last version
|
40 | 7bd1d3b5 | Giorgos Verigakis | - disk_format: stored as a user meta
|
41 | 0a72907b | Giorgos Verigakis | - id: the 'uuid' meta
|
42 | f5afd99b | Giorgos Verigakis | - is_public: True if there is a * entry for the read permission
|
43 | 0a72907b | Giorgos Verigakis | - location: generated based on the file's path
|
44 | 7bd1d3b5 | Giorgos Verigakis | - name: stored as a user meta
|
45 | 0a72907b | Giorgos Verigakis | - owner: the file's account
|
46 | 7bd1d3b5 | Giorgos Verigakis | - properties: stored as user meta prefixed with PROPERTY_PREFIX
|
47 | 0a72907b | Giorgos Verigakis | - size: the 'bytes' meta
|
48 | 7bd1d3b5 | Giorgos Verigakis | - status: stored as a system meta
|
49 | 7bd1d3b5 | Giorgos Verigakis | - store: is always 'pithos'
|
50 | 0a72907b | Giorgos Verigakis | - updated_at: the 'modified' meta
|
51 | f5afd99b | Giorgos Verigakis | """
|
52 | f5afd99b | Giorgos Verigakis | |
53 | c34de90f | Giorgos Verigakis | import json |
54 | c23d211a | Giorgos Verigakis | import warnings |
55 | c34de90f | Giorgos Verigakis | |
56 | c34de90f | Giorgos Verigakis | from operator import itemgetter |
57 | c34de90f | Giorgos Verigakis | from time import gmtime, strftime, time |
58 | c34de90f | Giorgos Verigakis | |
59 | c34de90f | Giorgos Verigakis | from django.conf import settings |
60 | c34de90f | Giorgos Verigakis | |
61 | c34de90f | Giorgos Verigakis | from pithos.backends.base import NotAllowedError |
62 | c34de90f | Giorgos Verigakis | |
63 | c34de90f | Giorgos Verigakis | |
64 | 0a72907b | Giorgos Verigakis | PLANKTON_DOMAIN = 'plankton'
|
65 | bfd9f988 | Giorgos Verigakis | PLANKTON_PREFIX = 'plankton:'
|
66 | 7bd1d3b5 | Giorgos Verigakis | PROPERTY_PREFIX = 'property:'
|
67 | 7bd1d3b5 | Giorgos Verigakis | |
68 | bfd9f988 | Giorgos Verigakis | PLANKTON_META = ('container_format', 'disk_format', 'name', 'properties', |
69 | bfd9f988 | Giorgos Verigakis | 'status')
|
70 | c34de90f | Giorgos Verigakis | |
71 | c34de90f | Giorgos Verigakis | |
72 | 7bd1d3b5 | Giorgos Verigakis | def get_location(account, container, object): |
73 | 7bd1d3b5 | Giorgos Verigakis | assert '/' not in account, "Invalid account" |
74 | 7bd1d3b5 | Giorgos Verigakis | assert '/' not in container, "Invalid container" |
75 | 7bd1d3b5 | Giorgos Verigakis | return 'pithos://%s/%s/%s' % (account, container, object) |
76 | 7bd1d3b5 | Giorgos Verigakis | |
77 | 7784ab88 | Christos Stavrakakis | |
78 | 7bd1d3b5 | Giorgos Verigakis | def split_location(location): |
79 | 7bd1d3b5 | Giorgos Verigakis | """Returns (accout, container, object) from a location string"""
|
80 | 7bd1d3b5 | Giorgos Verigakis | t = location.split('/', 4) |
81 | 7bd1d3b5 | Giorgos Verigakis | assert len(t) == 5, "Invalid location" |
82 | 7bd1d3b5 | Giorgos Verigakis | return t[2:5] |
83 | 7bd1d3b5 | Giorgos Verigakis | |
84 | 7bd1d3b5 | Giorgos Verigakis | |
85 | 0a72907b | Giorgos Verigakis | class BackendException(Exception): |
86 | 0a72907b | Giorgos Verigakis | pass
|
87 | c34de90f | Giorgos Verigakis | |
88 | c34de90f | Giorgos Verigakis | |
89 | 7784ab88 | Christos Stavrakakis | from pithos.backends.util import PithosBackendPool |
90 | 7784ab88 | Christos Stavrakakis | POOL_SIZE = 8
|
91 | 7784ab88 | Christos Stavrakakis | _pithos_backend_pool = \ |
92 | 7784ab88 | Christos Stavrakakis | PithosBackendPool(POOL_SIZE, |
93 | 7784ab88 | Christos Stavrakakis | db_connection=settings.BACKEND_DB_CONNECTION, |
94 | 7784ab88 | Christos Stavrakakis | block_path=settings.BACKEND_BLOCK_PATH) |
95 | 7784ab88 | Christos Stavrakakis | |
96 | 7784ab88 | Christos Stavrakakis | |
97 | 7784ab88 | Christos Stavrakakis | def get_pithos_backend(): |
98 | 7784ab88 | Christos Stavrakakis | return _pithos_backend_pool.pool_get()
|
99 | 7784ab88 | Christos Stavrakakis | |
100 | 7784ab88 | Christos Stavrakakis | |
101 | ffab341c | Christos Stavrakakis | class ImageBackend(object): |
102 | f5afd99b | Giorgos Verigakis | """A wrapper arround the pithos backend to simplify image handling."""
|
103 | 1e28ba40 | Christos Stavrakakis | |
104 | c34de90f | Giorgos Verigakis | def __init__(self, user): |
105 | c34de90f | Giorgos Verigakis | self.user = user
|
106 | 7784ab88 | Christos Stavrakakis | |
107 | c23d211a | Giorgos Verigakis | original_filters = warnings.filters |
108 | c23d211a | Giorgos Verigakis | warnings.simplefilter('ignore') # Suppress SQLAlchemy warnings |
109 | 7784ab88 | Christos Stavrakakis | self.backend = get_pithos_backend()
|
110 | c23d211a | Giorgos Verigakis | warnings.filters = original_filters # Restore warnings
|
111 | 7784ab88 | Christos Stavrakakis | |
112 | 7bd1d3b5 | Giorgos Verigakis | def _get_image(self, location): |
113 | f5afd99b | Giorgos Verigakis | def format_timestamp(t): |
114 | f5afd99b | Giorgos Verigakis | return strftime('%Y-%m-%d %H:%M:%S', gmtime(t)) |
115 | 1e28ba40 | Christos Stavrakakis | |
116 | 7bd1d3b5 | Giorgos Verigakis | account, container, object = split_location(location) |
117 | 1e28ba40 | Christos Stavrakakis | |
118 | 7bd1d3b5 | Giorgos Verigakis | try:
|
119 | 7bd1d3b5 | Giorgos Verigakis | versions = self.backend.list_versions(self.user, account, |
120 | 7bd1d3b5 | Giorgos Verigakis | container, object)
|
121 | 7bd1d3b5 | Giorgos Verigakis | except NameError: |
122 | 7bd1d3b5 | Giorgos Verigakis | return None |
123 | 1e28ba40 | Christos Stavrakakis | |
124 | 7bd1d3b5 | Giorgos Verigakis | image = {} |
125 | 1e28ba40 | Christos Stavrakakis | |
126 | 7bd1d3b5 | Giorgos Verigakis | meta = self._get_meta(location)
|
127 | 7bd1d3b5 | Giorgos Verigakis | if meta:
|
128 | 7bd1d3b5 | Giorgos Verigakis | image['deleted_at'] = '' |
129 | 7bd1d3b5 | Giorgos Verigakis | else:
|
130 | 7bd1d3b5 | Giorgos Verigakis | # Object was deleted, use the latest version
|
131 | 7bd1d3b5 | Giorgos Verigakis | version, timestamp = versions[-1]
|
132 | 7bd1d3b5 | Giorgos Verigakis | meta = self._get_meta(location, version)
|
133 | 7bd1d3b5 | Giorgos Verigakis | image['deleted_at'] = format_timestamp(timestamp)
|
134 | 1e28ba40 | Christos Stavrakakis | |
135 | 0a72907b | Giorgos Verigakis | if PLANKTON_PREFIX + 'name' not in meta: |
136 | 0a72907b | Giorgos Verigakis | return None # Not a Plankton image |
137 | 1e28ba40 | Christos Stavrakakis | |
138 | 7bd1d3b5 | Giorgos Verigakis | permissions = self._get_permissions(location)
|
139 | 1e28ba40 | Christos Stavrakakis | |
140 | 0a72907b | Giorgos Verigakis | image['checksum'] = meta['hash'] |
141 | 7bd1d3b5 | Giorgos Verigakis | image['created_at'] = format_timestamp(versions[0][1]) |
142 | 0a72907b | Giorgos Verigakis | image['id'] = meta['uuid'] |
143 | f5afd99b | Giorgos Verigakis | image['is_public'] = '*' in permissions.get('read', []) |
144 | 7bd1d3b5 | Giorgos Verigakis | image['location'] = location
|
145 | 7bd1d3b5 | Giorgos Verigakis | image['owner'] = account
|
146 | 0a72907b | Giorgos Verigakis | image['size'] = meta['bytes'] |
147 | 7bd1d3b5 | Giorgos Verigakis | image['store'] = 'pithos' |
148 | 0a72907b | Giorgos Verigakis | image['updated_at'] = format_timestamp(meta['modified']) |
149 | 7bd1d3b5 | Giorgos Verigakis | image['properties'] = {}
|
150 | 1e28ba40 | Christos Stavrakakis | |
151 | 7bd1d3b5 | Giorgos Verigakis | for key, val in meta.items(): |
152 | bfd9f988 | Giorgos Verigakis | if not key.startswith(PLANKTON_PREFIX): |
153 | bfd9f988 | Giorgos Verigakis | continue
|
154 | bfd9f988 | Giorgos Verigakis | key = key[len(PLANKTON_PREFIX):]
|
155 | bfd9f988 | Giorgos Verigakis | if key == 'properties': |
156 | bfd9f988 | Giorgos Verigakis | val = json.loads(val) |
157 | bfd9f988 | Giorgos Verigakis | if key in PLANKTON_META: |
158 | 7bd1d3b5 | Giorgos Verigakis | image[key] = val |
159 | 1e28ba40 | Christos Stavrakakis | |
160 | 0a72907b | Giorgos Verigakis | return image
|
161 | 1e28ba40 | Christos Stavrakakis | |
162 | bfd9f988 | Giorgos Verigakis | def _get_meta(self, location, version=None): |
163 | 7bd1d3b5 | Giorgos Verigakis | account, container, object = split_location(location) |
164 | 7bd1d3b5 | Giorgos Verigakis | try:
|
165 | bfd9f988 | Giorgos Verigakis | return self.backend.get_object_meta(self.user, account, container, |
166 | bfd9f988 | Giorgos Verigakis | object, PLANKTON_DOMAIN, version)
|
167 | 7bd1d3b5 | Giorgos Verigakis | except NameError: |
168 | 7bd1d3b5 | Giorgos Verigakis | return None |
169 | 1e28ba40 | Christos Stavrakakis | |
170 | 7bd1d3b5 | Giorgos Verigakis | def _get_permissions(self, location): |
171 | 7bd1d3b5 | Giorgos Verigakis | account, container, object = split_location(location) |
172 | 15137c54 | Giorgos Verigakis | action, path, permissions = self.backend.get_object_permissions(
|
173 | 7bd1d3b5 | Giorgos Verigakis | self.user, account, container, object) |
174 | f5afd99b | Giorgos Verigakis | return permissions
|
175 | 1e28ba40 | Christos Stavrakakis | |
176 | c23d211a | Giorgos Verigakis | def _store(self, f, size=None): |
177 | 7bd1d3b5 | Giorgos Verigakis | """Breaks data into blocks and stores them in the backend"""
|
178 | 1e28ba40 | Christos Stavrakakis | |
179 | c23d211a | Giorgos Verigakis | bytes = 0
|
180 | f5afd99b | Giorgos Verigakis | hashmap = [] |
181 | 7bd1d3b5 | Giorgos Verigakis | backend = self.backend
|
182 | c23d211a | Giorgos Verigakis | blocksize = backend.block_size |
183 | 1e28ba40 | Christos Stavrakakis | |
184 | c23d211a | Giorgos Verigakis | data = f.read(blocksize) |
185 | 7bd1d3b5 | Giorgos Verigakis | while data:
|
186 | c23d211a | Giorgos Verigakis | hash = backend.put_block(data) |
187 | f5afd99b | Giorgos Verigakis | hashmap.append(hash)
|
188 | c23d211a | Giorgos Verigakis | bytes += len(data) |
189 | c23d211a | Giorgos Verigakis | data = f.read(blocksize) |
190 | 1e28ba40 | Christos Stavrakakis | |
191 | c23d211a | Giorgos Verigakis | if size and size != bytes: |
192 | c23d211a | Giorgos Verigakis | raise BackendException("Invalid size") |
193 | 1e28ba40 | Christos Stavrakakis | |
194 | c23d211a | Giorgos Verigakis | return hashmap, bytes |
195 | 1e28ba40 | Christos Stavrakakis | |
196 | 7bd1d3b5 | Giorgos Verigakis | def _update(self, location, size, hashmap, meta, permissions): |
197 | 7bd1d3b5 | Giorgos Verigakis | account, container, object = split_location(location) |
198 | 7bd1d3b5 | Giorgos Verigakis | self.backend.update_object_hashmap(self.user, account, container, |
199 | 0d316750 | Giorgos Verigakis | object, size, hashmap, '', PLANKTON_DOMAIN, |
200 | 0a72907b | Giorgos Verigakis | permissions=permissions) |
201 | 0a72907b | Giorgos Verigakis | self._update_meta(location, meta, replace=True) |
202 | 1e28ba40 | Christos Stavrakakis | |
203 | 0a72907b | Giorgos Verigakis | def _update_meta(self, location, meta, replace=False): |
204 | 7bd1d3b5 | Giorgos Verigakis | account, container, object = split_location(location) |
205 | 1e28ba40 | Christos Stavrakakis | |
206 | bfd9f988 | Giorgos Verigakis | prefixed = {} |
207 | 0a72907b | Giorgos Verigakis | for key, val in meta.items(): |
208 | bfd9f988 | Giorgos Verigakis | if key == 'properties': |
209 | bfd9f988 | Giorgos Verigakis | val = json.dumps(val) |
210 | bfd9f988 | Giorgos Verigakis | if key in PLANKTON_META: |
211 | bfd9f988 | Giorgos Verigakis | prefixed[PLANKTON_PREFIX + key] = val |
212 | 1e28ba40 | Christos Stavrakakis | |
213 | bfd9f988 | Giorgos Verigakis | self.backend.update_object_meta(self.user, account, container, object, |
214 | bfd9f988 | Giorgos Verigakis | PLANKTON_DOMAIN, prefixed, replace) |
215 | 1e28ba40 | Christos Stavrakakis | |
216 | 7bd1d3b5 | Giorgos Verigakis | def _update_permissions(self, location, permissions): |
217 | 7bd1d3b5 | Giorgos Verigakis | account, container, object = split_location(location) |
218 | 7bd1d3b5 | Giorgos Verigakis | self.backend.update_object_permissions(self.user, account, container, |
219 | 7bd1d3b5 | Giorgos Verigakis | object, permissions)
|
220 | 1e28ba40 | Christos Stavrakakis | |
221 | f5afd99b | Giorgos Verigakis | def add_user(self, image_id, user): |
222 | bfd9f988 | Giorgos Verigakis | image = self.get_image(image_id)
|
223 | f5afd99b | Giorgos Verigakis | assert image, "Image not found" |
224 | 1e28ba40 | Christos Stavrakakis | |
225 | 7bd1d3b5 | Giorgos Verigakis | location = image['location']
|
226 | 7bd1d3b5 | Giorgos Verigakis | permissions = self._get_permissions(location)
|
227 | f5afd99b | Giorgos Verigakis | read = set(permissions.get('read', [])) |
228 | f5afd99b | Giorgos Verigakis | read.add(user) |
229 | f5afd99b | Giorgos Verigakis | permissions['read'] = list(read) |
230 | 7bd1d3b5 | Giorgos Verigakis | self._update_permissions(location, permissions)
|
231 | 1e28ba40 | Christos Stavrakakis | |
232 | f5afd99b | Giorgos Verigakis | def close(self): |
233 | f5afd99b | Giorgos Verigakis | self.backend.close()
|
234 | 1e28ba40 | Christos Stavrakakis | |
235 | 6ef51e9f | Giorgos Verigakis | def delete(self, image_id): |
236 | 6ef51e9f | Giorgos Verigakis | image = self.get_image(image_id)
|
237 | 6ef51e9f | Giorgos Verigakis | account, container, object = split_location(image['location'])
|
238 | 6ef51e9f | Giorgos Verigakis | self.backend.delete_object(self.user, account, container, object) |
239 | 1e28ba40 | Christos Stavrakakis | |
240 | 7bd1d3b5 | Giorgos Verigakis | def get_data(self, location): |
241 | 7bd1d3b5 | Giorgos Verigakis | account, container, object = split_location(location) |
242 | 7bd1d3b5 | Giorgos Verigakis | size, hashmap = self.backend.get_object_hashmap(self.user, account, |
243 | 7bd1d3b5 | Giorgos Verigakis | container, object)
|
244 | f5afd99b | Giorgos Verigakis | data = ''.join(self.backend.get_block(hash) for hash in hashmap) |
245 | f5afd99b | Giorgos Verigakis | assert len(data) == size |
246 | f5afd99b | Giorgos Verigakis | return data
|
247 | 1e28ba40 | Christos Stavrakakis | |
248 | bfd9f988 | Giorgos Verigakis | def get_image(self, image_id): |
249 | 0a72907b | Giorgos Verigakis | try:
|
250 | 0a72907b | Giorgos Verigakis | account, container, object = self.backend.get_uuid(self.user, |
251 | 0a72907b | Giorgos Verigakis | image_id) |
252 | 0a72907b | Giorgos Verigakis | except NameError: |
253 | 0a72907b | Giorgos Verigakis | return None |
254 | 1e28ba40 | Christos Stavrakakis | |
255 | 0a72907b | Giorgos Verigakis | location = get_location(account, container, object)
|
256 | 0a72907b | Giorgos Verigakis | return self._get_image(location) |
257 | 1e28ba40 | Christos Stavrakakis | |
258 | aed77afe | Christos Stavrakakis | def _iter(self, public=False, filters=None, shared_from=None): |
259 | d19e8f77 | Giorgos Verigakis | filters = filters or {}
|
260 | 1e28ba40 | Christos Stavrakakis | |
261 | aed77afe | Christos Stavrakakis | # Fix keys
|
262 | bfd9f988 | Giorgos Verigakis | keys = [PLANKTON_PREFIX + 'name']
|
263 | 434d1e68 | Giorgos Verigakis | size_range = (None, None) |
264 | f5afd99b | Giorgos Verigakis | for key, val in filters.items(): |
265 | 0a72907b | Giorgos Verigakis | if key == 'size_min': |
266 | 434d1e68 | Giorgos Verigakis | size_range = (int(val), size_range[1]) |
267 | 0a72907b | Giorgos Verigakis | elif key == 'size_max': |
268 | 434d1e68 | Giorgos Verigakis | size_range = (size_range[0], int(val)) |
269 | f5afd99b | Giorgos Verigakis | else:
|
270 | 434d1e68 | Giorgos Verigakis | keys.append('%s = %s' % (PLANKTON_PREFIX + key, val))
|
271 | 1e28ba40 | Christos Stavrakakis | |
272 | aed77afe | Christos Stavrakakis | backend = self.backend
|
273 | aed77afe | Christos Stavrakakis | if shared_from:
|
274 | aed77afe | Christos Stavrakakis | # To get shared images, we connect as shared_from member and
|
275 | aed77afe | Christos Stavrakakis | # get the list shared by us
|
276 | aed77afe | Christos Stavrakakis | user = shared_from |
277 | aed77afe | Christos Stavrakakis | accounts = [self.user]
|
278 | aed77afe | Christos Stavrakakis | else:
|
279 | aed77afe | Christos Stavrakakis | user = None if public else self.user |
280 | aed77afe | Christos Stavrakakis | accounts = backend.list_accounts(user) |
281 | aed77afe | Christos Stavrakakis | |
282 | aed77afe | Christos Stavrakakis | for account in accounts: |
283 | aed77afe | Christos Stavrakakis | for container in backend.list_containers(user, account, |
284 | 0a72907b | Giorgos Verigakis | shared=True):
|
285 | aed77afe | Christos Stavrakakis | for path, _ in backend.list_objects(user, account, container, |
286 | aed77afe | Christos Stavrakakis | domain=PLANKTON_DOMAIN, |
287 | aed77afe | Christos Stavrakakis | keys=keys, shared=True,
|
288 | aed77afe | Christos Stavrakakis | size_range=size_range): |
289 | 0a72907b | Giorgos Verigakis | location = get_location(account, container, path) |
290 | 0a72907b | Giorgos Verigakis | image = self._get_image(location)
|
291 | 0a72907b | Giorgos Verigakis | if image:
|
292 | 0a72907b | Giorgos Verigakis | yield image
|
293 | 1e28ba40 | Christos Stavrakakis | |
294 | aed77afe | Christos Stavrakakis | def iter(self, filters=None): |
295 | aed77afe | Christos Stavrakakis | """Iter over all images available to the user"""
|
296 | aed77afe | Christos Stavrakakis | return self._iter(filters=filters) |
297 | 1e28ba40 | Christos Stavrakakis | |
298 | aed77afe | Christos Stavrakakis | def iter_public(self, filters=None): |
299 | aed77afe | Christos Stavrakakis | """Iter over public images"""
|
300 | aed77afe | Christos Stavrakakis | return self._iter(public=True, filters=filters) |
301 | 1e28ba40 | Christos Stavrakakis | |
302 | aed77afe | Christos Stavrakakis | def iter_shared(self, filters=None, member=None): |
303 | aed77afe | Christos Stavrakakis | """Iter over images shared to member"""
|
304 | aed77afe | Christos Stavrakakis | return self._iter(filters=filters) |
305 | 1e28ba40 | Christos Stavrakakis | |
306 | aed77afe | Christos Stavrakakis | def list(self, filters=None, params={}): |
307 | aed77afe | Christos Stavrakakis | """Return all images available to the user"""
|
308 | aed77afe | Christos Stavrakakis | images = list(self.iter(filters)) |
309 | aed77afe | Christos Stavrakakis | key = itemgetter(params.get('sort_key', 'created_at')) |
310 | aed77afe | Christos Stavrakakis | reverse = params.get('sort_dir', 'desc') == 'desc' |
311 | aed77afe | Christos Stavrakakis | images.sort(key=key, reverse=reverse) |
312 | aed77afe | Christos Stavrakakis | return images
|
313 | 1e28ba40 | Christos Stavrakakis | |
314 | aed77afe | Christos Stavrakakis | def list_public(self, filters, params={}): |
315 | aed77afe | Christos Stavrakakis | """Return public images"""
|
316 | f5afd99b | Giorgos Verigakis | images = list(self.iter_public(filters)) |
317 | 7bd1d3b5 | Giorgos Verigakis | key = itemgetter(params.get('sort_key', 'created_at')) |
318 | 7bd1d3b5 | Giorgos Verigakis | reverse = params.get('sort_dir', 'desc') == 'desc' |
319 | f5afd99b | Giorgos Verigakis | images.sort(key=key, reverse=reverse) |
320 | f5afd99b | Giorgos Verigakis | return images
|
321 | 1e28ba40 | Christos Stavrakakis | |
322 | f5afd99b | Giorgos Verigakis | def list_users(self, image_id): |
323 | bfd9f988 | Giorgos Verigakis | image = self.get_image(image_id)
|
324 | f5afd99b | Giorgos Verigakis | assert image, "Image not found" |
325 | 1e28ba40 | Christos Stavrakakis | |
326 | 7bd1d3b5 | Giorgos Verigakis | permissions = self._get_permissions(image['location']) |
327 | f5afd99b | Giorgos Verigakis | return [user for user in permissions.get('read', []) if user != '*'] |
328 | 1e28ba40 | Christos Stavrakakis | |
329 | c23d211a | Giorgos Verigakis | def put(self, name, f, params): |
330 | 7bd1d3b5 | Giorgos Verigakis | assert 'checksum' not in params, "Passing a checksum is not supported" |
331 | 7bd1d3b5 | Giorgos Verigakis | assert 'id' not in params, "Passing an ID is not supported" |
332 | 7bd1d3b5 | Giorgos Verigakis | assert params.pop('store', 'pithos') == 'pithos', "Invalid store" |
333 | 7bd1d3b5 | Giorgos Verigakis | assert params.setdefault('disk_format', |
334 | 7bd1d3b5 | Giorgos Verigakis | settings.DEFAULT_DISK_FORMAT) in \
|
335 | 7bd1d3b5 | Giorgos Verigakis | settings.ALLOWED_DISK_FORMATS, "Invalid disk_format"
|
336 | 7bd1d3b5 | Giorgos Verigakis | assert params.setdefault('container_format', |
337 | 7bd1d3b5 | Giorgos Verigakis | settings.DEFAULT_CONTAINER_FORMAT) in \
|
338 | 7bd1d3b5 | Giorgos Verigakis | settings.ALLOWED_CONTAINER_FORMATS, "Invalid container_format"
|
339 | 1e28ba40 | Christos Stavrakakis | |
340 | bfd9f988 | Giorgos Verigakis | container = settings.DEFAULT_PLANKTON_CONTAINER |
341 | c23d211a | Giorgos Verigakis | filename = params.pop('filename', name)
|
342 | bfd9f988 | Giorgos Verigakis | location = 'pithos://%s/%s/%s' % (self.user, container, filename) |
343 | f5afd99b | Giorgos Verigakis | is_public = params.pop('is_public', False) |
344 | 921355f8 | Giorgos Verigakis | permissions = {'read': ['*']} if is_public else {} |
345 | c23d211a | Giorgos Verigakis | size = params.pop('size', None) |
346 | 1e28ba40 | Christos Stavrakakis | |
347 | c23d211a | Giorgos Verigakis | hashmap, size = self._store(f, size)
|
348 | 1e28ba40 | Christos Stavrakakis | |
349 | 7bd1d3b5 | Giorgos Verigakis | meta = {} |
350 | 7bd1d3b5 | Giorgos Verigakis | meta['properties'] = params.pop('properties', {}) |
351 | 0a72907b | Giorgos Verigakis | meta.update(name=name, status='available', **params)
|
352 | 1e28ba40 | Christos Stavrakakis | |
353 | 7bd1d3b5 | Giorgos Verigakis | self._update(location, size, hashmap, meta, permissions)
|
354 | 0a72907b | Giorgos Verigakis | return self._get_image(location) |
355 | 1e28ba40 | Christos Stavrakakis | |
356 | f5afd99b | Giorgos Verigakis | def register(self, name, location, params): |
357 | 7bd1d3b5 | Giorgos Verigakis | assert 'id' not in params, "Passing an ID is not supported" |
358 | 7bd1d3b5 | Giorgos Verigakis | assert location.startswith('pithos://'), "Invalid location" |
359 | 7bd1d3b5 | Giorgos Verigakis | assert params.pop('store', 'pithos') == 'pithos', "Invalid store" |
360 | 7bd1d3b5 | Giorgos Verigakis | assert params.setdefault('disk_format', |
361 | 7bd1d3b5 | Giorgos Verigakis | settings.DEFAULT_DISK_FORMAT) in \
|
362 | 7bd1d3b5 | Giorgos Verigakis | settings.ALLOWED_DISK_FORMATS, "Invalid disk_format"
|
363 | 7bd1d3b5 | Giorgos Verigakis | assert params.setdefault('container_format', |
364 | 7bd1d3b5 | Giorgos Verigakis | settings.DEFAULT_CONTAINER_FORMAT) in \
|
365 | 7bd1d3b5 | Giorgos Verigakis | settings.ALLOWED_CONTAINER_FORMATS, "Invalid container_format"
|
366 | 1e28ba40 | Christos Stavrakakis | |
367 | 1e28ba40 | Christos Stavrakakis | # user = self.user
|
368 | 7bd1d3b5 | Giorgos Verigakis | account, container, object = split_location(location) |
369 | 1e28ba40 | Christos Stavrakakis | |
370 | 7bd1d3b5 | Giorgos Verigakis | meta = self._get_meta(location)
|
371 | 06c8fb11 | Giorgos Verigakis | assert meta, "File not found" |
372 | 1e28ba40 | Christos Stavrakakis | |
373 | bfd9f988 | Giorgos Verigakis | size = int(params.pop('size', meta['bytes'])) |
374 | 0a72907b | Giorgos Verigakis | if size != meta['bytes']: |
375 | c34de90f | Giorgos Verigakis | raise BackendException("Invalid size") |
376 | 1e28ba40 | Christos Stavrakakis | |
377 | 0a72907b | Giorgos Verigakis | checksum = params.pop('checksum', meta['hash']) |
378 | 0a72907b | Giorgos Verigakis | if checksum != meta['hash']: |
379 | c34de90f | Giorgos Verigakis | raise BackendException("Invalid checksum") |
380 | 1e28ba40 | Christos Stavrakakis | |
381 | f5afd99b | Giorgos Verigakis | is_public = params.pop('is_public', False) |
382 | aed77afe | Christos Stavrakakis | if is_public:
|
383 | aed77afe | Christos Stavrakakis | permissions = {'read': ['*']} |
384 | aed77afe | Christos Stavrakakis | else:
|
385 | aed77afe | Christos Stavrakakis | permissions = {'read': [self.user]} |
386 | 1e28ba40 | Christos Stavrakakis | |
387 | f5afd99b | Giorgos Verigakis | meta = {} |
388 | 7bd1d3b5 | Giorgos Verigakis | meta['properties'] = params.pop('properties', {}) |
389 | 0a72907b | Giorgos Verigakis | meta.update(name=name, status='available', **params)
|
390 | 1e28ba40 | Christos Stavrakakis | |
391 | 7bd1d3b5 | Giorgos Verigakis | self._update_meta(location, meta)
|
392 | 7bd1d3b5 | Giorgos Verigakis | self._update_permissions(location, permissions)
|
393 | 0a72907b | Giorgos Verigakis | return self._get_image(location) |
394 | 1e28ba40 | Christos Stavrakakis | |
395 | f5afd99b | Giorgos Verigakis | def remove_user(self, image_id, user): |
396 | bfd9f988 | Giorgos Verigakis | image = self.get_image(image_id)
|
397 | f5afd99b | Giorgos Verigakis | assert image, "Image not found" |
398 | 1e28ba40 | Christos Stavrakakis | |
399 | 7bd1d3b5 | Giorgos Verigakis | location = image['location']
|
400 | 7bd1d3b5 | Giorgos Verigakis | permissions = self._get_permissions(location)
|
401 | f5afd99b | Giorgos Verigakis | try:
|
402 | f5afd99b | Giorgos Verigakis | permissions.get('read', []).remove(user)
|
403 | f5afd99b | Giorgos Verigakis | except ValueError: |
404 | f5afd99b | Giorgos Verigakis | return # User did not have access anyway |
405 | 7bd1d3b5 | Giorgos Verigakis | self._update_permissions(location, permissions)
|
406 | 1e28ba40 | Christos Stavrakakis | |
407 | f5afd99b | Giorgos Verigakis | def replace_users(self, image_id, users): |
408 | bfd9f988 | Giorgos Verigakis | image = self.get_image(image_id)
|
409 | f5afd99b | Giorgos Verigakis | assert image, "Image not found" |
410 | 1e28ba40 | Christos Stavrakakis | |
411 | 7bd1d3b5 | Giorgos Verigakis | location = image['location']
|
412 | 7bd1d3b5 | Giorgos Verigakis | permissions = self._get_permissions(location)
|
413 | f5afd99b | Giorgos Verigakis | permissions['read'] = users
|
414 | f5afd99b | Giorgos Verigakis | if image.get('is_public', False): |
415 | f5afd99b | Giorgos Verigakis | permissions['read'].append('*') |
416 | 7bd1d3b5 | Giorgos Verigakis | self._update_permissions(location, permissions)
|
417 | 1e28ba40 | Christos Stavrakakis | |
418 | 7bd1d3b5 | Giorgos Verigakis | def update(self, image_id, params): |
419 | bfd9f988 | Giorgos Verigakis | image = self.get_image(image_id)
|
420 | 15137c54 | Giorgos Verigakis | assert image, "Image not found" |
421 | 1e28ba40 | Christos Stavrakakis | |
422 | 7bd1d3b5 | Giorgos Verigakis | location = image['location']
|
423 | 7bd1d3b5 | Giorgos Verigakis | is_public = params.pop('is_public', None) |
424 | 7e00b33e | Giorgos Verigakis | if is_public is not None: |
425 | 7bd1d3b5 | Giorgos Verigakis | permissions = self._get_permissions(location)
|
426 | f5afd99b | Giorgos Verigakis | read = set(permissions.get('read', [])) |
427 | 7e00b33e | Giorgos Verigakis | if is_public:
|
428 | f5afd99b | Giorgos Verigakis | read.add('*')
|
429 | 7e00b33e | Giorgos Verigakis | else:
|
430 | f5afd99b | Giorgos Verigakis | read.discard('*')
|
431 | f5afd99b | Giorgos Verigakis | permissions['read'] = list(read) |
432 | 7bd1d3b5 | Giorgos Verigakis | self.backend._update_permissions(location, permissions)
|
433 | 1e28ba40 | Christos Stavrakakis | |
434 | 7bd1d3b5 | Giorgos Verigakis | meta = {} |
435 | 7bd1d3b5 | Giorgos Verigakis | meta['properties'] = params.pop('properties', {}) |
436 | 7bd1d3b5 | Giorgos Verigakis | meta.update(**params) |
437 | 1e28ba40 | Christos Stavrakakis | |
438 | 7bd1d3b5 | Giorgos Verigakis | self._update_meta(location, meta)
|
439 | bfd9f988 | Giorgos Verigakis | return self.get_image(image_id) |