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<?php |
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/** |
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* integer_net Magento Module |
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* |
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* @category IntegerNet |
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* @package IntegerNet_Anonymizer |
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* @copyright Copyright (c) 2015 integer_net GmbH (http://www.integer-net.de/) |
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* @author Fabian Schmengler <[email protected]> |
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*/ |
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namespace IntegerNet\Anonymizer; |
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use Faker\Factory; |
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class Provider |
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{ |
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const __CLASS = __CLASS__; |
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/** |
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* @var \Faker\Generator |
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*/ |
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private $faker; |
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private $salt; |
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/** |
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* Initializes Faker, generates new salt for RNG seeds |
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* |
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* @param string|null $locale |
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* @return void |
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*/ |
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public function initialize($locale = null) |
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{ |
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if ($locale === null) { |
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$locale = Factory::DEFAULT_LOCALE; |
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} |
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$this->faker = Factory::create($locale); |
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$this->salt = sha1(uniqid('', true)); |
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} |
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/** |
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* Resets the UniqueGenerator of Faker, this should be used after anonymizing a database table with |
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* unique values to free memory and allow the same values in other tables |
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* |
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* @return void |
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*/ |
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public function resetUniqueGenerator() |
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{ |
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$this->faker->unique(true); |
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} |
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/** |
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* Return fake data from given Faker provider, always return the same data for each ($formatter, $identifier) |
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* combination after initialized. |
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* |
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* @param $formatter |
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* @param $identifier |
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* @return mixed |
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*/ |
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public function getFakerData($formatter, $identifier, $unique = false) |
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{ |
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$faker = $this->faker; |
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if ($formatter === 'null') { |
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return $faker->optional(0)->randomDigit; |
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} |
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if ($unique) { |
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$faker = $faker->unique(); |
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} |
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$this->seedRng($formatter.$identifier); |
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$result = $faker->format($formatter); |
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$this->resetRng(); |
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return $result; |
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} |
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/** |
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* @param $identifier |
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*/ |
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private function seedRng($identifier) |
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{ |
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$this->faker->seed(hexdec(hash("crc32b", $identifier . $this->salt))); |
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} |
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private function resetRng() |
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{ |
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//$this->faker->seed(); |
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//TODO use above as soon as pr 543 has been merged |
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mt_srand(); |
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} |
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} |