|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace Arrilot\DataAnonymization; |
|
4
|
|
|
|
|
5
|
|
|
use Arrilot\DataAnonymization\Database\DatabaseInterface; |
|
6
|
|
|
use Exception; |
|
7
|
|
|
|
|
8
|
|
|
class Anonymizer |
|
9
|
|
|
{ |
|
10
|
|
|
/** |
|
11
|
|
|
* Database interactions object. |
|
12
|
|
|
* |
|
13
|
|
|
* @var DatabaseInterface |
|
14
|
|
|
*/ |
|
15
|
|
|
protected $database; |
|
16
|
|
|
|
|
17
|
|
|
/** |
|
18
|
|
|
* Generator object (e.g \Faker\Factory). |
|
19
|
|
|
* |
|
20
|
|
|
* @var mixed |
|
21
|
|
|
*/ |
|
22
|
|
|
protected $generator; |
|
23
|
|
|
|
|
24
|
|
|
/** |
|
25
|
|
|
* Blueprints for tables. |
|
26
|
|
|
* |
|
27
|
|
|
* @var array |
|
28
|
|
|
*/ |
|
29
|
|
|
protected $blueprints = []; |
|
30
|
|
|
|
|
31
|
|
|
/** |
|
32
|
|
|
* Constructor. |
|
33
|
|
|
* |
|
34
|
|
|
* @param DatabaseInterface $database |
|
35
|
|
|
* @param mixed $generator |
|
36
|
|
|
*/ |
|
37
|
|
|
public function __construct(DatabaseInterface $database, $generator = null) |
|
38
|
|
|
{ |
|
39
|
|
|
$this->database = $database; |
|
40
|
|
|
|
|
41
|
|
|
if (is_null($generator) && class_exists('\Faker\Factory')) { |
|
42
|
|
|
$generator = \Faker\Factory::create(); |
|
43
|
|
|
} |
|
44
|
|
|
|
|
45
|
|
|
if (!is_null($generator)) { |
|
46
|
|
|
$this->setGenerator($generator); |
|
47
|
|
|
} |
|
48
|
|
|
} |
|
49
|
|
|
|
|
50
|
|
|
/** |
|
51
|
|
|
* Setter for generator. |
|
52
|
|
|
* |
|
53
|
|
|
* @param mixed $generator |
|
54
|
|
|
* |
|
55
|
|
|
* @return $this |
|
56
|
|
|
*/ |
|
57
|
|
|
public function setGenerator($generator) |
|
58
|
|
|
{ |
|
59
|
|
|
$this->generator = $generator; |
|
60
|
|
|
|
|
61
|
|
|
return $this; |
|
62
|
|
|
} |
|
63
|
|
|
|
|
64
|
|
|
/** |
|
65
|
|
|
* Getter for generator. |
|
66
|
|
|
* |
|
67
|
|
|
* @return mixed |
|
68
|
|
|
*/ |
|
69
|
|
|
public function getGenerator() |
|
70
|
|
|
{ |
|
71
|
|
|
return $this->generator; |
|
72
|
|
|
} |
|
73
|
|
|
|
|
74
|
|
|
/** |
|
75
|
|
|
* Perform data anonymization. |
|
76
|
|
|
* |
|
77
|
|
|
* @return void |
|
78
|
|
|
*/ |
|
79
|
|
|
public function run() |
|
80
|
|
|
{ |
|
81
|
|
|
foreach ($this->blueprints as $table => $blueprint) { |
|
82
|
|
|
$this->applyBlueprint($blueprint); |
|
83
|
|
|
} |
|
84
|
|
|
} |
|
85
|
|
|
|
|
86
|
|
|
/** |
|
87
|
|
|
* Describe a table with a given callback. |
|
88
|
|
|
* |
|
89
|
|
|
* @param string $name |
|
90
|
|
|
* @param callable $callback |
|
91
|
|
|
* |
|
92
|
|
|
* @return void |
|
93
|
|
|
*/ |
|
94
|
|
|
public function table($name, callable $callback) |
|
95
|
|
|
{ |
|
96
|
|
|
$blueprint = new Blueprint($name, $callback); |
|
97
|
|
|
|
|
98
|
|
|
$this->blueprints[$name] = $blueprint->build(); |
|
99
|
|
|
} |
|
100
|
|
|
|
|
101
|
|
|
/** |
|
102
|
|
|
* Apply blueprint to the database. |
|
103
|
|
|
* |
|
104
|
|
|
* @param Blueprint $blueprint |
|
105
|
|
|
* |
|
106
|
|
|
* @return void |
|
107
|
|
|
*/ |
|
108
|
|
|
protected function applyBlueprint(Blueprint $blueprint) |
|
109
|
|
|
{ |
|
110
|
|
|
foreach ($blueprint->columns as $column) { |
|
111
|
|
|
$this->updateColumn($blueprint->table, $blueprint->primary, $column); |
|
112
|
|
|
} |
|
113
|
|
|
} |
|
114
|
|
|
|
|
115
|
|
|
/** |
|
116
|
|
|
* Update all needed values of a give column. |
|
117
|
|
|
* |
|
118
|
|
|
* @param string $table |
|
119
|
|
|
* @param array $primary |
|
120
|
|
|
* @param array $column |
|
121
|
|
|
*/ |
|
122
|
|
|
protected function updateColumn($table, $primary, $column) |
|
123
|
|
|
{ |
|
124
|
|
|
$columns = $this->mergeColumns($primary, $column['name']); |
|
125
|
|
|
$where = $column['where']; |
|
126
|
|
|
|
|
127
|
|
|
foreach ($this->database->getRows($table, $columns, $where) as $rowNum => $row) { |
|
128
|
|
|
$this->database->updateByPrimary( |
|
129
|
|
|
$table, |
|
130
|
|
|
Helpers::arrayOnly($row, $primary), |
|
131
|
|
|
$column['name'], |
|
132
|
|
|
$this->calculateNewValue($column['replace'], $rowNum) |
|
133
|
|
|
); |
|
134
|
|
|
} |
|
135
|
|
|
} |
|
136
|
|
|
|
|
137
|
|
|
/** |
|
138
|
|
|
* Calculate new value for each row. |
|
139
|
|
|
* |
|
140
|
|
|
* @param string|callable $replace |
|
141
|
|
|
* @param int $rowNum |
|
142
|
|
|
* |
|
143
|
|
|
* @return string |
|
144
|
|
|
*/ |
|
145
|
|
|
protected function calculateNewValue($replace, $rowNum) |
|
146
|
|
|
{ |
|
147
|
|
|
$value = $this->handlePossibleClosure($replace); |
|
148
|
|
|
|
|
149
|
|
|
return $this->replacePlaceholders($value, $rowNum); |
|
150
|
|
|
} |
|
151
|
|
|
|
|
152
|
|
|
/** |
|
153
|
|
|
* Replace placeholders. |
|
154
|
|
|
* |
|
155
|
|
|
* @param mixed $value |
|
156
|
|
|
* @param int $rowNum |
|
157
|
|
|
* |
|
158
|
|
|
* @return mixed |
|
159
|
|
|
*/ |
|
160
|
|
|
protected function replacePlaceholders($value, $rowNum) |
|
161
|
|
|
{ |
|
162
|
|
|
if (!is_string($value)) { |
|
163
|
|
|
return $value; |
|
164
|
|
|
} |
|
165
|
|
|
|
|
166
|
|
|
return str_replace('#row#', $rowNum, $value); |
|
167
|
|
|
} |
|
168
|
|
|
|
|
169
|
|
|
/** |
|
170
|
|
|
* @param $replace |
|
171
|
|
|
* |
|
172
|
|
|
* @return mixed |
|
173
|
|
|
*/ |
|
174
|
|
|
protected function handlePossibleClosure($replace) |
|
175
|
|
|
{ |
|
176
|
|
|
if (!is_callable($replace)) { |
|
177
|
|
|
return $replace; |
|
178
|
|
|
} |
|
179
|
|
|
|
|
180
|
|
|
if ($this->generator === null) { |
|
181
|
|
|
throw new Exception('You forgot to set a generator'); |
|
182
|
|
|
} |
|
183
|
|
|
|
|
184
|
|
|
return call_user_func($replace, $this->generator); |
|
185
|
|
|
} |
|
186
|
|
|
|
|
187
|
|
|
/** |
|
188
|
|
|
* Merge columns for select. |
|
189
|
|
|
* |
|
190
|
|
|
* @param array $primary |
|
191
|
|
|
* @param string $columnName |
|
192
|
|
|
* |
|
193
|
|
|
* @return array |
|
194
|
|
|
*/ |
|
195
|
|
|
protected function mergeColumns($primary, $columnName) |
|
196
|
|
|
{ |
|
197
|
|
|
return array_merge($primary, [ |
|
198
|
|
|
$columnName, |
|
199
|
|
|
]); |
|
200
|
|
|
} |
|
201
|
|
|
} |
|
202
|
|
|
|
arrilot /
data-anonymization
