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LayeredParameterizedPassword | |
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crypt | |
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partialCrypt | |
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1 | <?php |
2 | /** |
3 | * Implements the LayeredParameterizedPassword class for the MediaWiki software. |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify |
6 | * it under the terms of the GNU General Public License as published by |
7 | * the Free Software Foundation; either version 2 of the License, or |
8 | * (at your option) any later version. |
9 | * |
10 | * This program is distributed in the hope that it will be useful, |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | * GNU General Public License for more details. |
14 | * |
15 | * You should have received a copy of the GNU General Public License along |
16 | * with this program; if not, write to the Free Software Foundation, Inc., |
17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
18 | * http://www.gnu.org/copyleft/gpl.html |
19 | * |
20 | * @file |
21 | */ |
22 | |
23 | declare( strict_types = 1 ); |
24 | |
25 | namespace MediaWiki\Password; |
26 | |
27 | use InvalidArgumentException; |
28 | use UnexpectedValueException; |
29 | |
30 | /** |
31 | * This password hash type layers one or more parameterized password types |
32 | * on top of each other. |
33 | * |
34 | * The underlying types must be parameterized. This wrapping type accumulates |
35 | * all the parameters and arguments from each hash and then passes the hash of |
36 | * the last layer as the password for the next layer. |
37 | * |
38 | * @since 1.24 |
39 | */ |
40 | class LayeredParameterizedPassword extends ParameterizedPassword { |
41 | protected function getDelimiter(): string { |
42 | return '!'; |
43 | } |
44 | |
45 | protected function getDefaultParams(): array { |
46 | $params = []; |
47 | |
48 | foreach ( $this->config['types'] as $type ) { |
49 | $passObj = $this->factory->newFromType( $type ); |
50 | |
51 | if ( !$passObj instanceof ParameterizedPassword ) { |
52 | throw new UnexpectedValueException( 'Underlying type must be a parameterized password.' ); |
53 | } elseif ( $passObj->getDelimiter() === $this->getDelimiter() ) { |
54 | throw new UnexpectedValueException( |
55 | 'Underlying type cannot use same delimiter as encapsulating type.' |
56 | ); |
57 | } |
58 | |
59 | $params[] = implode( $passObj->getDelimiter(), $passObj->getDefaultParams() ); |
60 | } |
61 | |
62 | return $params; |
63 | } |
64 | |
65 | public function crypt( string $password ): void { |
66 | $lastHash = $password; |
67 | foreach ( $this->config['types'] as $i => $type ) { |
68 | // Construct pseudo-hash based on params and arguments |
69 | /** @var ParameterizedPassword $passObj */ |
70 | $passObj = $this->factory->newFromType( $type ); |
71 | '@phan-var ParameterizedPassword $passObj'; |
72 | |
73 | $params = ''; |
74 | $args = ''; |
75 | if ( $this->params[$i] !== '' ) { |
76 | $params = $this->params[$i] . $passObj->getDelimiter(); |
77 | } |
78 | if ( isset( $this->args[$i] ) && $this->args[$i] !== '' ) { |
79 | $args = $this->args[$i] . $passObj->getDelimiter(); |
80 | } |
81 | $existingHash = ":$type:" . $params . $args . $this->hash; |
82 | |
83 | // Hash the last hash with the next type in the layer |
84 | $passObj = $this->factory->newFromCiphertext( $existingHash ); |
85 | '@phan-var ParameterizedPassword $passObj'; |
86 | $passObj->crypt( $lastHash ); |
87 | |
88 | // Move over the params and args |
89 | $this->params[$i] = implode( $passObj->getDelimiter(), $passObj->params ); |
90 | $this->args[$i] = implode( $passObj->getDelimiter(), $passObj->args ); |
91 | $lastHash = $passObj->hash; |
92 | } |
93 | |
94 | $this->hash = $lastHash; |
95 | } |
96 | |
97 | /** |
98 | * Finish the hashing of a partially hashed layered hash |
99 | * |
100 | * Given a password hash that is hashed using the first layer of this object's |
101 | * configuration, perform the remaining layers of password hashing in order to |
102 | * get an updated hash with all the layers. |
103 | * |
104 | * @param ParameterizedPassword $passObj Password hash of the first layer |
105 | */ |
106 | public function partialCrypt( ParameterizedPassword $passObj ) { |
107 | $type = $passObj->config['type']; |
108 | if ( $type !== $this->config['types'][0] ) { |
109 | throw new InvalidArgumentException( 'Only a hash in the first layer can be finished.' ); |
110 | } |
111 | |
112 | // Gather info from the existing hash |
113 | $this->params[0] = implode( $passObj->getDelimiter(), $passObj->params ); |
114 | $this->args[0] = implode( $passObj->getDelimiter(), $passObj->args ); |
115 | $lastHash = $passObj->hash; |
116 | |
117 | // Layer the remaining types |
118 | foreach ( $this->config['types'] as $i => $type ) { |
119 | if ( $i == 0 ) { |
120 | continue; |
121 | } |
122 | |
123 | // Construct pseudo-hash based on params and arguments |
124 | /** @var ParameterizedPassword $passObj */ |
125 | $passObj = $this->factory->newFromType( $type ); |
126 | '@phan-var ParameterizedPassword $passObj'; |
127 | |
128 | $params = ''; |
129 | $args = ''; |
130 | if ( $this->params[$i] !== '' ) { |
131 | $params = $this->params[$i] . $passObj->getDelimiter(); |
132 | } |
133 | if ( isset( $this->args[$i] ) && $this->args[$i] !== '' ) { |
134 | $args = $this->args[$i] . $passObj->getDelimiter(); |
135 | } |
136 | $existingHash = ":$type:" . $params . $args . $this->hash; |
137 | |
138 | // Hash the last hash with the next type in the layer |
139 | $passObj = $this->factory->newFromCiphertext( $existingHash ); |
140 | '@phan-var ParameterizedPassword $passObj'; |
141 | $passObj->crypt( $lastHash ); |
142 | |
143 | // Move over the params and args |
144 | $this->params[$i] = implode( $passObj->getDelimiter(), $passObj->params ); |
145 | $this->args[$i] = implode( $passObj->getDelimiter(), $passObj->args ); |
146 | $lastHash = $passObj->hash; |
147 | } |
148 | |
149 | $this->hash = $lastHash; |
150 | } |
151 | } |
152 | |
153 | /** @deprecated since 1.43 use MediaWiki\\Password\\LayeredParameterizedPassword */ |
154 | class_alias( LayeredParameterizedPassword::class, 'LayeredParameterizedPassword' ); |