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
|
<?php
/**
* SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
* SPDX-FileCopyrightText: 2016 ownCloud, Inc.
* SPDX-License-Identifier: AGPL-3.0-only
*/
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 {
protected bool $wasTrashbinEnabled = false;
protected bool $wasMaintenanceModeEnabled = false;
public function __construct(
protected IManager $encryptionManager,
protected IAppManager $appManager,
protected IConfig $config,
protected \OC\Encryption\DecryptAll $decryptAll,
protected QuestionHelper $questionHelper,
) {
parent::__construct();
}
/**
* Set maintenance mode and disable the trashbin app
*/
protected function forceMaintenanceAndTrashbin(): void {
$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(): void {
$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;
}
$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;
}
}
}
|
