root / kamaki / clients / storage.py @ 2bcb595a
History | View | Annotate | Download (3.9 kB)
1 | a1c50326 | Giorgos Verigakis | # Copyright 2011 GRNET S.A. All rights reserved.
|
---|---|---|---|
2 | a1c50326 | Giorgos Verigakis | #
|
3 | a1c50326 | Giorgos Verigakis | # Redistribution and use in source and binary forms, with or
|
4 | a1c50326 | Giorgos Verigakis | # without modification, are permitted provided that the following
|
5 | a1c50326 | Giorgos Verigakis | # conditions are met:
|
6 | a1c50326 | Giorgos Verigakis | #
|
7 | a1c50326 | Giorgos Verigakis | # 1. Redistributions of source code must retain the above
|
8 | a1c50326 | Giorgos Verigakis | # copyright notice, this list of conditions and the following
|
9 | a1c50326 | Giorgos Verigakis | # disclaimer.
|
10 | a1c50326 | Giorgos Verigakis | #
|
11 | a1c50326 | Giorgos Verigakis | # 2. Redistributions in binary form must reproduce the above
|
12 | a1c50326 | Giorgos Verigakis | # copyright notice, this list of conditions and the following
|
13 | a1c50326 | Giorgos Verigakis | # disclaimer in the documentation and/or other materials
|
14 | a1c50326 | Giorgos Verigakis | # provided with the distribution.
|
15 | a1c50326 | Giorgos Verigakis | #
|
16 | a1c50326 | Giorgos Verigakis | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
|
17 | a1c50326 | Giorgos Verigakis | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
18 | a1c50326 | Giorgos Verigakis | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
19 | a1c50326 | Giorgos Verigakis | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
|
20 | a1c50326 | Giorgos Verigakis | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
21 | a1c50326 | Giorgos Verigakis | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
22 | a1c50326 | Giorgos Verigakis | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
23 | a1c50326 | Giorgos Verigakis | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
24 | a1c50326 | Giorgos Verigakis | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
25 | a1c50326 | Giorgos Verigakis | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
26 | a1c50326 | Giorgos Verigakis | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
27 | a1c50326 | Giorgos Verigakis | # POSSIBILITY OF SUCH DAMAGE.
|
28 | a1c50326 | Giorgos Verigakis | #
|
29 | a1c50326 | Giorgos Verigakis | # The views and conclusions contained in the software and
|
30 | a1c50326 | Giorgos Verigakis | # documentation are those of the authors and should not be
|
31 | a1c50326 | Giorgos Verigakis | # interpreted as representing official policies, either expressed
|
32 | a1c50326 | Giorgos Verigakis | # or implied, of GRNET S.A.
|
33 | a1c50326 | Giorgos Verigakis | |
34 | 6a0b1658 | Giorgos Verigakis | from . import Client, ClientError
|
35 | a1c50326 | Giorgos Verigakis | |
36 | a1c50326 | Giorgos Verigakis | |
37 | 6a0b1658 | Giorgos Verigakis | class StorageClient(Client): |
38 | d2cea1e2 | Giorgos Verigakis | """OpenStack Object Storage API 1.0 client"""
|
39 | d2cea1e2 | Giorgos Verigakis | |
40 | 6a0b1658 | Giorgos Verigakis | def __init__(self, base_url, token, account=None, container=None): |
41 | 6a0b1658 | Giorgos Verigakis | super(StorageClient, self).__init__(base_url, token) |
42 | 6a0b1658 | Giorgos Verigakis | self.account = account
|
43 | 6a0b1658 | Giorgos Verigakis | self.container = container
|
44 | d2cea1e2 | Giorgos Verigakis | |
45 | 6a0b1658 | Giorgos Verigakis | def assert_account(self): |
46 | 6a0b1658 | Giorgos Verigakis | if not self.account: |
47 | 6a0b1658 | Giorgos Verigakis | raise ClientError("Please provide an account") |
48 | d2cea1e2 | Giorgos Verigakis | |
49 | 6a0b1658 | Giorgos Verigakis | def assert_container(self): |
50 | 6a0b1658 | Giorgos Verigakis | self.assert_account()
|
51 | 6a0b1658 | Giorgos Verigakis | if not self.container: |
52 | 6a0b1658 | Giorgos Verigakis | raise ClientError("Please provide a container") |
53 | d2cea1e2 | Giorgos Verigakis | |
54 | 60560d7c | Giorgos Verigakis | def create_container(self, container): |
55 | 6a0b1658 | Giorgos Verigakis | self.assert_account()
|
56 | 60560d7c | Giorgos Verigakis | path = '/%s/%s' % (self.account, container) |
57 | 6a0b1658 | Giorgos Verigakis | r = self.put(path, success=(201, 202)) |
58 | 6a0b1658 | Giorgos Verigakis | if r.status_code == 202: |
59 | 6a0b1658 | Giorgos Verigakis | raise ClientError("Container already exists") |
60 | 60560d7c | Giorgos Verigakis | |
61 | 6a0b1658 | Giorgos Verigakis | def get_container_meta(self, container): |
62 | 6a0b1658 | Giorgos Verigakis | self.assert_account()
|
63 | 6a0b1658 | Giorgos Verigakis | path = '/%s/%s' % (self.account, container) |
64 | 6a0b1658 | Giorgos Verigakis | r = self.head(path, success=(204, 404)) |
65 | 6a0b1658 | Giorgos Verigakis | if r.status_code == 404: |
66 | 6a0b1658 | Giorgos Verigakis | raise ClientError("Container does not exist", r.status_code) |
67 | 6a0b1658 | Giorgos Verigakis | |
68 | d2cea1e2 | Giorgos Verigakis | reply = {} |
69 | d2cea1e2 | Giorgos Verigakis | prefix = 'x-container-'
|
70 | 6a0b1658 | Giorgos Verigakis | for key, val in r.headers.items(): |
71 | d2cea1e2 | Giorgos Verigakis | key = key.lower() |
72 | d2cea1e2 | Giorgos Verigakis | if key.startswith(prefix):
|
73 | d2cea1e2 | Giorgos Verigakis | reply[key[len(prefix):]] = val
|
74 | 6a0b1658 | Giorgos Verigakis | |
75 | d2cea1e2 | Giorgos Verigakis | return reply
|
76 | a1c50326 | Giorgos Verigakis | |
77 | 6a0b1658 | Giorgos Verigakis | def create_object(self, object, f, hash_cb=None, upload_cb=None): |
78 | 6a0b1658 | Giorgos Verigakis | # This is a naive implementation, it loads the whole file in memory
|
79 | 6a0b1658 | Giorgos Verigakis | self.assert_container()
|
80 | a1c50326 | Giorgos Verigakis | path = '/%s/%s/%s' % (self.account, self.container, object) |
81 | a1c50326 | Giorgos Verigakis | data = f.read() |
82 | 6a0b1658 | Giorgos Verigakis | self.put(path, data=data, success=201) |
83 | 6a0b1658 | Giorgos Verigakis | |
84 | 176894c1 | Giorgos Verigakis | def get_object(self, object): |
85 | 6a0b1658 | Giorgos Verigakis | self.assert_container()
|
86 | 176894c1 | Giorgos Verigakis | path = '/%s/%s/%s' % (self.account, self.container, object) |
87 | 2bcb595a | Giorgos Verigakis | r = self.get(path, raw=True, success=200) |
88 | 6a0b1658 | Giorgos Verigakis | size = int(r.headers['content-length']) |
89 | 6a0b1658 | Giorgos Verigakis | return r.raw, size
|
90 | 6a0b1658 | Giorgos Verigakis | |
91 | a1c50326 | Giorgos Verigakis | def delete_object(self, object): |
92 | 6a0b1658 | Giorgos Verigakis | self.assert_container()
|
93 | a1c50326 | Giorgos Verigakis | path = '/%s/%s/%s' % (self.account, self.container, object) |
94 | 6a0b1658 | Giorgos Verigakis | self.delete(path, success=204) |
95 | 2bcb595a | Giorgos Verigakis | |
96 | 2bcb595a | Giorgos Verigakis | def list_objects(self, path=''): |
97 | 2bcb595a | Giorgos Verigakis | self.assert_container()
|
98 | 2bcb595a | Giorgos Verigakis | path = '/%s/%s' % (self.account, self.container) |
99 | 2bcb595a | Giorgos Verigakis | params = dict(format='json') |
100 | 2bcb595a | Giorgos Verigakis | r = self.get(path, params=params, success=(200, 204)) |
101 | 2bcb595a | Giorgos Verigakis | return r.json |