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<?php |
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/* |
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* 2017 Romain CANON <[email protected]> |
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* |
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* This file is part of the TYPO3 FormZ project. |
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* It is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License, either |
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* version 3 of the License, or any later version. |
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* |
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* For the full copyright and license information, see: |
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* http://www.gnu.org/licenses/gpl-3.0.html |
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*/ |
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namespace Romm\Formz\Service; |
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use Romm\Formz\Core\Core; |
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use Romm\Formz\Domain\Repository\FormMetadataRepository; |
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use Romm\Formz\Service\Traits\SelfInstantiateTrait; |
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use TYPO3\CMS\Core\SingletonInterface; |
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class HashService implements SingletonInterface |
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{ |
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use SelfInstantiateTrait; |
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/** |
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* @param string $value |
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* @return string |
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*/ |
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public function getHash($value) |
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{ |
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return hash('sha256', $value); |
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} |
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/** |
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* @param int $length the number of bytes to generate |
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* @return string the generated random bytes |
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* @throws \Exception |
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*/ |
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public function getUniqueHash($length = 32) |
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{ |
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if (!is_int($length) || $length < 1) { |
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throw new \Exception('Invalid $length parameter'); |
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} |
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/** @var FormMetadataRepository $formMetadataRepository */ |
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$formMetadataRepository = Core::instantiate(FormMetadataRepository::class); |
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do { |
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// Generated random bytes |
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$hash = bin2hex(random_bytes($length)); |
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// Check if the hash has already been generated |
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$object = $formMetadataRepository->findOneByHash($hash); |
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} while ($object !== null); |
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return $hash; |
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} |
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} |
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romm /
formz
