1
|
|
|
<?php |
2
|
|
|
/** |
3
|
|
|
* @copyright Copyright (c) 2016, ownCloud, Inc. |
4
|
|
|
* |
5
|
|
|
* @author Jörn Friedrich Dreyer <[email protected]> |
6
|
|
|
* @author Morris Jobke <[email protected]> |
7
|
|
|
* @author Robin Appelman <[email protected]> |
8
|
|
|
* @author William Pain <[email protected]> |
9
|
|
|
* |
10
|
|
|
* @license AGPL-3.0 |
11
|
|
|
* |
12
|
|
|
* This code is free software: you can redistribute it and/or modify |
13
|
|
|
* it under the terms of the GNU Affero General Public License, version 3, |
14
|
|
|
* as published by the Free Software Foundation. |
15
|
|
|
* |
16
|
|
|
* This program is distributed in the hope that it will be useful, |
17
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
18
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
19
|
|
|
* GNU Affero General Public License for more details. |
20
|
|
|
* |
21
|
|
|
* You should have received a copy of the GNU Affero General Public License, version 3, |
22
|
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/> |
23
|
|
|
* |
24
|
|
|
*/ |
25
|
|
|
|
26
|
|
|
namespace OC\Files\ObjectStore; |
27
|
|
|
|
28
|
|
|
use function GuzzleHttp\Psr7\stream_for; |
29
|
|
|
use Icewind\Streams\RetryWrapper; |
30
|
|
|
use OCP\Files\NotFoundException; |
31
|
|
|
use OCP\Files\ObjectStore\IObjectStore; |
32
|
|
|
use OCP\Files\StorageAuthException; |
33
|
|
|
use OpenStack\Common\Error\BadResponseError; |
34
|
|
|
|
35
|
|
|
class Swift implements IObjectStore { |
36
|
|
|
/** |
37
|
|
|
* @var array |
38
|
|
|
*/ |
39
|
|
|
private $params; |
40
|
|
|
|
41
|
|
|
/** @var SwiftFactory */ |
42
|
|
|
private $swiftFactory; |
43
|
|
|
|
44
|
|
|
public function __construct($params, SwiftFactory $connectionFactory = null) { |
45
|
|
|
$this->swiftFactory = $connectionFactory ?: new SwiftFactory( |
46
|
|
|
\OC::$server->getMemCacheFactory()->createDistributed('swift::'), |
47
|
|
|
$params, |
48
|
|
|
\OC::$server->getLogger() |
49
|
|
|
); |
50
|
|
|
$this->params = $params; |
51
|
|
|
} |
52
|
|
|
|
53
|
|
|
/** |
54
|
|
|
* @return \OpenStack\ObjectStore\v1\Models\Container |
55
|
|
|
* @throws StorageAuthException |
56
|
|
|
* @throws \OCP\Files\StorageNotAvailableException |
57
|
|
|
*/ |
58
|
|
|
private function getContainer() { |
59
|
|
|
return $this->swiftFactory->getContainer(); |
60
|
|
|
} |
61
|
|
|
|
62
|
|
|
/** |
63
|
|
|
* @return string the container name where objects are stored |
64
|
|
|
*/ |
65
|
|
|
public function getStorageId() { |
66
|
|
|
if (isset($this->params['bucket'])) { |
67
|
|
|
return $this->params['bucket']; |
68
|
|
|
} |
69
|
|
|
|
70
|
|
|
return $this->params['container']; |
71
|
|
|
} |
72
|
|
|
|
73
|
|
|
/** |
74
|
|
|
* @param string $urn the unified resource name used to identify the object |
75
|
|
|
* @param resource $stream stream with the data to write |
76
|
|
|
* @throws \Exception from openstack lib when something goes wrong |
77
|
|
|
*/ |
78
|
|
|
public function writeObject($urn, $stream) { |
79
|
|
|
$this->getContainer()->createObject([ |
80
|
|
|
'name' => $urn, |
81
|
|
|
'stream' => stream_for($stream) |
82
|
|
|
]); |
83
|
|
|
} |
84
|
|
|
|
85
|
|
|
/** |
86
|
|
|
* @param string $urn the unified resource name used to identify the object |
87
|
|
|
* @return resource stream with the read data |
88
|
|
|
* @throws \Exception from openstack lib when something goes wrong |
89
|
|
|
* @throws NotFoundException if file does not exist |
90
|
|
|
*/ |
91
|
|
|
public function readObject($urn) { |
92
|
|
|
try { |
93
|
|
|
$object = $this->getContainer()->getObject($urn); |
94
|
|
|
|
95
|
|
|
// we need to keep a reference to objectContent or |
96
|
|
|
// the stream will be closed before we can do anything with it |
97
|
|
|
$objectContent = $object->download(); |
98
|
|
|
} catch (BadResponseError $e) { |
99
|
|
|
if ($e->getResponse()->getStatusCode() === 404) { |
100
|
|
|
throw new NotFoundException("object $urn not found in object store"); |
101
|
|
|
} else { |
102
|
|
|
throw $e; |
103
|
|
|
} |
104
|
|
|
} |
105
|
|
|
$objectContent->rewind(); |
106
|
|
|
|
107
|
|
|
$stream = $objectContent->detach(); |
108
|
|
|
// save the object content in the context of the stream to prevent it being gc'd until the stream is closed |
109
|
|
|
stream_context_set_option($stream, 'swift', 'content', $objectContent); |
110
|
|
|
|
111
|
|
|
return RetryWrapper::wrap($stream); |
112
|
|
|
} |
113
|
|
|
|
114
|
|
|
/** |
115
|
|
|
* @param string $urn Unified Resource Name |
116
|
|
|
* @return void |
117
|
|
|
* @throws \Exception from openstack lib when something goes wrong |
118
|
|
|
*/ |
119
|
|
|
public function deleteObject($urn) { |
120
|
|
|
$this->getContainer()->getObject($urn)->delete(); |
121
|
|
|
} |
122
|
|
|
|
123
|
|
|
/** |
124
|
|
|
* @return void |
125
|
|
|
* @throws \Exception from openstack lib when something goes wrong |
126
|
|
|
*/ |
127
|
|
|
public function deleteContainer() { |
128
|
|
|
$this->getContainer()->delete(); |
129
|
|
|
} |
130
|
|
|
|
131
|
|
|
public function objectExists($urn) { |
132
|
|
|
return $this->getContainer()->objectExists($urn); |
133
|
|
|
} |
134
|
|
|
} |
135
|
|
|
|