1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
<?php
/**
* @copyright Copyright (c) 2016 Robin Appelman <robin@icewind.nl>
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\Files_External\Command;
use OC\Core\Command\Base;
use OCA\Files_External\Lib\InsufficientDataForMeaningfulAnswerException;
use OCA\Files_External\Lib\StorageConfig;
use OCA\Files_External\Service\GlobalStoragesService;
use OCP\Files\Storage\INotifyStorage;
use OCP\Files\StorageNotAvailableException;
use OCP\IDBConnection;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
class Notify extends Base {
/** @var GlobalStoragesService */
private $globalService;
/** @var IDBConnection */
private $connection;
/** @var \OCP\DB\QueryBuilder\IQueryBuilder */
private $updateQuery;
function __construct(GlobalStoragesService $globalService, IDBConnection $connection) {
parent::__construct();
$this->globalService = $globalService;
$this->connection = $connection;
// the query builder doesn't really like subqueries with parameters
$this->updateQuery = $this->connection->prepare(
'UPDATE *PREFIX*filecache SET size = -1
WHERE `path` = ?
AND `storage` IN (SELECT storage_id FROM *PREFIX*mounts WHERE mount_id = ?)'
);
}
protected function configure() {
$this
->setName('files_external:notify')
->setDescription('Listen for active update notifications for a configured external mount')
->addArgument(
'mount_id',
InputArgument::REQUIRED,
'the mount id of the mount to listen to'
)->addOption(
'user',
'u',
InputOption::VALUE_REQUIRED,
'The username for the remote mount (required only for some mount configuration that don\'t store credentials)'
)->addOption(
'password',
'p',
InputOption::VALUE_REQUIRED,
'The password for the remote mount (required only for some mount configuration that don\'t store credentials)'
)->addOption(
'path',
null,
InputOption::VALUE_REQUIRED,
'The directory in the storage to listen for updates in',
'/'
);
parent::configure();
}
protected function execute(InputInterface $input, OutputInterface $output) {
$mount = $this->globalService->getStorage($input->getArgument('mount_id'));
if (is_null($mount)) {
$output->writeln('<error>Mount not found</error>');
return 1;
}
$noAuth = false;
try {
$authBackend = $mount->getAuthMechanism();
$authBackend->manipulateStorageConfig($mount);
} catch (InsufficientDataForMeaningfulAnswerException $e) {
$noAuth = true;
} catch (StorageNotAvailableException $e) {
$noAuth = true;
}
if ($input->getOption('user')) {
$mount->setBackendOption('user', $input->getOption('user'));
}
if ($input->getOption('password')) {
$mount->setBackendOption('password', $input->getOption('password'));
}
try {
$storage = $this->createStorage($mount);
} catch (\Exception $e) {
$output->writeln('<error>Error while trying to create storage</error>');
if ($noAuth) {
$output->writeln('<error>Username and/or password required</error>');
}
return 1;
}
if (!$storage instanceof INotifyStorage) {
$output->writeln('<error>Mount of type "' . $mount->getBackend()->getText() . '" does not support active update notifications</error>');
return 1;
}
$verbose = $input->getOption('verbose');
$path = trim($input->getOption('path'), '/');
$storage->listen($path, function ($type, $path, $renameTarget) use ($mount, $verbose, $output) {
if ($verbose) {
$this->logUpdate($type, $path, $renameTarget, $output);
}
if ($type == INotifyStorage::NOTIFY_RENAMED) {
$this->markParentAsOutdated($mount->getId(), $renameTarget);
}
$this->markParentAsOutdated($mount->getId(), $path);
});
}
private function createStorage(StorageConfig $mount) {
$class = $mount->getBackend()->getStorageClass();
return new $class($mount->getBackendOptions());
}
private function markParentAsOutdated($mountId, $path) {
$parent = dirname($path);
if ($parent === '.') {
$parent = '';
}
$this->updateQuery->execute([$parent, $mountId]);
}
private function logUpdate($type, $path, $renameTarget, OutputInterface $output) {
switch ($type) {
case INotifyStorage::NOTIFY_ADDED:
$text = 'added';
break;
case INotifyStorage::NOTIFY_MODIFIED:
$text = 'modified';
break;
case INotifyStorage::NOTIFY_REMOVED:
$text = 'removed';
break;
case INotifyStorage::NOTIFY_RENAMED:
$text = 'renamed';
break;
default:
return;
}
$text .= ' ' . $path;
if ($type === INotifyStorage::NOTIFY_RENAMED) {
$text .= ' to ' . $renameTarget;
}
$output->writeln($text);
}
}
|
