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
|
<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Bjoern Schiessle <bjoern@schiessle.org>
* @author Björn Schießle <bjoern@schiessle.org>
* @author Lukas Reschke <lukas@statuscode.ch>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Thomas Müller <thomas.mueller@tmit.eu>
*
* @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 OCP\Encryption;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
/**
* Interface IEncryptionModule
*
* @package OCP\Encryption
* @since 8.1.0
*/
interface IEncryptionModule {
/**
* @return string defining the technical unique id
* @since 8.1.0
*/
public function getId();
/**
* In comparison to getKey() this function returns a human readable (maybe translated) name
*
* @return string
* @since 8.1.0
*/
public function getDisplayName();
/**
* start receiving chunks from a file. This is the place where you can
* perform some initial step before starting encrypting/decrypting the
* chunks
*
* @param string $path to the file
* @param string $user who read/write the file (null for public access)
* @param string $mode php stream open mode
* @param array $header contains the header data read from the file
* @param array $accessList who has access to the file contains the key 'users' and 'public'
*
* $return array $header contain data as key-value pairs which should be
* written to the header, in case of a write operation
* or if no additional data is needed return a empty array
* @since 8.1.0
*/
public function begin($path, $user, $mode, array $header, array $accessList);
/**
* last chunk received. This is the place where you can perform some final
* operation and return some remaining data if something is left in your
* buffer.
*
* @param string $path to the file
* @param string $position id of the last block (looks like "<Number>end")
*
* @return string remained data which should be written to the file in case
* of a write operation
*
* @since 8.1.0
* @since 9.0.0 parameter $position added
*/
public function end($path, $position);
/**
* encrypt data
*
* @param string $data you want to encrypt
* @param string $position position of the block we want to encrypt (starts with '0')
*
* @return mixed encrypted data
*
* @since 8.1.0
* @since 9.0.0 parameter $position added
*/
public function encrypt($data, $position);
/**
* decrypt data
*
* @param string $data you want to decrypt
* @param string $position position of the block we want to decrypt
*
* @return mixed decrypted data
*
* @since 8.1.0
* @since 9.0.0 parameter $position added
*/
public function decrypt($data, $position);
/**
* update encrypted file, e.g. give additional users access to the file
*
* @param string $path path to the file which should be updated
* @param string $uid of the user who performs the operation
* @param array $accessList who has access to the file contains the key 'users' and 'public'
* @return boolean
* @since 8.1.0
*/
public function update($path, $uid, array $accessList);
/**
* should the file be encrypted or not
*
* @param string $path
* @return boolean
* @since 8.1.0
*/
public function shouldEncrypt($path);
/**
* get size of the unencrypted payload per block.
* ownCloud read/write files with a block size of 8192 byte
*
* @param bool $signed
* @return int
* @since 8.1.0 optional parameter $signed was added in 9.0.0
*/
public function getUnencryptedBlockSize($signed = false);
/**
* check if the encryption module is able to read the file,
* e.g. if all encryption keys exists
*
* @param string $path
* @param string $uid user for whom we want to check if he can read the file
* @return boolean
* @since 8.1.0
*/
public function isReadable($path, $uid);
/**
* Initial encryption of all files
*
* @param InputInterface $input
* @param OutputInterface $output write some status information to the terminal during encryption
* @since 8.2.0
*/
public function encryptAll(InputInterface $input, OutputInterface $output);
/**
* prepare encryption module to decrypt all files
*
* @param InputInterface $input
* @param OutputInterface $output write some status information to the terminal during encryption
* @param $user (optional) for which the files should be decrypted, default = all users
* @return bool return false on failure or if it isn't supported by the module
* @since 8.2.0
*/
public function prepareDecryptAll(InputInterface $input, OutputInterface $output, $user = '');
/**
* Check if the module is ready to be used by that specific user.
* In case a module is not ready - because e.g. key pairs have not been generated
* upon login this method can return false before any operation starts and might
* cause issues during operations.
*
* @param string $user
* @return boolean
* @since 9.1.0
*/
public function isReadyForUser($user);
/**
* Does the encryption module needs a detailed list of users with access to the file?
* For example if the encryption module uses per-user encryption keys and needs to know
* the users with access to the file to encrypt/decrypt it.
*
* @since 13.0.0
* @return bool
*/
public function needDetailedAccessList();
}
|
