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
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Björn Schießle <bjoern@schiessle.org>
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
* @author davitol <dtoledo@solidgear.es>
* @author Evgeny Golyshev <eugulixes@gmail.com>
* @author Joas Schilling <coding@schilljs.com>
* @author Marius Blüm <marius@lineone.io>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Ruben Homs <ruben@homs.codes>
* @author Sergio Bertolín <sbertolin@solidgear.es>
* @author Vincent Petry <vincent@nextcloud.com>
*
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OC\Core\Command\Encryption;
use OCP\App\IAppManager;
use OCP\Encryption\IManager;
use OCP\IConfig;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Helper\QuestionHelper;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Question\ConfirmationQuestion;
class DecryptAll extends Command {
/** @var IManager */
protected $encryptionManager;
/** @var IAppManager */
protected $appManager;
/** @var IConfig */
protected $config;
/** @var QuestionHelper */
protected $questionHelper;
/** @var bool */
protected $wasTrashbinEnabled;
/** @var bool */
protected $wasMaintenanceModeEnabled;
/** @var \OC\Encryption\DecryptAll */
protected $decryptAll;
/**
* @param IManager $encryptionManager
* @param IAppManager $appManager
* @param IConfig $config
* @param \OC\Encryption\DecryptAll $decryptAll
* @param QuestionHelper $questionHelper
*/
public function __construct(
IManager $encryptionManager,
IAppManager $appManager,
IConfig $config,
\OC\Encryption\DecryptAll $decryptAll,
QuestionHelper $questionHelper
) {
parent::__construct();
$this->appManager = $appManager;
$this->encryptionManager = $encryptionManager;
$this->config = $config;
$this->decryptAll = $decryptAll;
$this->questionHelper = $questionHelper;
}
/**
* Set maintenance mode and disable the trashbin app
*/
protected function forceMaintenanceAndTrashbin() {
$this->wasTrashbinEnabled = $this->appManager->isEnabledForUser('files_trashbin');
$this->wasMaintenanceModeEnabled = $this->config->getSystemValueBool('maintenance');
$this->config->setSystemValue('maintenance', true);
$this->appManager->disableApp('files_trashbin');
}
/**
* Reset the maintenance mode and re-enable the trashbin app
*/
protected function resetMaintenanceAndTrashbin() {
$this->config->setSystemValue('maintenance', $this->wasMaintenanceModeEnabled);
if ($this->wasTrashbinEnabled) {
$this->appManager->enableApp('files_trashbin');
}
}
protected function configure() {
parent::configure();
$this->setName('encryption:decrypt-all');
$this->setDescription('Disable server-side encryption and decrypt all files');
$this->setHelp(
'This will disable server-side encryption and decrypt all files for '
. 'all users if it is supported by your encryption module. '
. 'Please make sure that no user access his files during this process!'
);
$this->addArgument(
'user',
InputArgument::OPTIONAL,
'user for which you want to decrypt all files (optional)',
''
);
}
protected function execute(InputInterface $input, OutputInterface $output): int {
if (!$input->isInteractive()) {
$output->writeln('Invalid TTY.');
$output->writeln('If you are trying to execute the command in a Docker ');
$output->writeln("container, do not forget to execute 'docker exec' with");
$output->writeln("the '-i' and '-t' options.");
$output->writeln('');
return 1;
}
$isMaintenanceModeEnabled = $this->config->getSystemValue('maintenance', false);
if ($isMaintenanceModeEnabled) {
$output->writeln("Maintenance mode must be disabled when starting decryption,");
$output->writeln("in order to load the relevant encryption modules correctly.");
$output->writeln("Your instance will automatically be put to maintenance mode");
$output->writeln("during the actual decryption of the files.");
return 1;
}
try {
if ($this->encryptionManager->isEnabled() === true) {
$output->write('Disable server side encryption... ');
$this->config->setAppValue('core', 'encryption_enabled', 'no');
$output->writeln('done.');
} else {
$output->writeln('Server side encryption not enabled. Nothing to do.');
return 0;
}
$uid = $input->getArgument('user');
if ($uid === '') {
$message = 'your Nextcloud';
} else {
$message = "$uid's account";
}
$output->writeln("\n");
$output->writeln("You are about to start to decrypt all files stored in $message.");
$output->writeln('It will depend on the encryption module and your setup if this is possible.');
$output->writeln('Depending on the number and size of your files this can take some time');
$output->writeln('Please make sure that no user access his files during this process!');
$output->writeln('');
$question = new ConfirmationQuestion('Do you really want to continue? (y/n) ', false);
if ($this->questionHelper->ask($input, $output, $question)) {
$this->forceMaintenanceAndTrashbin();
$user = $input->getArgument('user');
$result = $this->decryptAll->decryptAll($input, $output, $user);
if ($result === false) {
$output->writeln(' aborted.');
$output->writeln('Server side encryption remains enabled');
$this->config->setAppValue('core', 'encryption_enabled', 'yes');
} elseif ($uid !== '') {
$output->writeln('Server side encryption remains enabled');
$this->config->setAppValue('core', 'encryption_enabled', 'yes');
}
$this->resetMaintenanceAndTrashbin();
return 0;
} else {
$output->write('Enable server side encryption... ');
$this->config->setAppValue('core', 'encryption_enabled', 'yes');
$output->writeln('done.');
$output->writeln('aborted');
return 1;
}
} catch (\Exception $e) {
// enable server side encryption again if something went wrong
$this->config->setAppValue('core', 'encryption_enabled', 'yes');
$this->resetMaintenanceAndTrashbin();
throw $e;
}
}
}
|
