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<?php |
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/* |
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* This file is part of the overtrue/wechat. |
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* |
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* (c) overtrue <[email protected]> |
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* |
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* This source file is subject to the MIT license that is bundled |
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* with this source code in the file LICENSE. |
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*/ |
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/** |
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* Encryptor.php. |
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* |
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* Part of Overtrue\WeChat. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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* |
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* @author mingyoung <[email protected]> |
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* @copyright 2016 |
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* |
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* @see https://github.com/overtrue |
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* @see http://overtrue.me |
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*/ |
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namespace EasyWeChat\MiniProgram\Encryption; |
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use EasyWeChat\Encryption\EncryptionException; |
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use EasyWeChat\Encryption\Encryptor as BaseEncryptor; |
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use Exception; |
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class Encryptor extends BaseEncryptor |
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{ |
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/** |
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* Decrypt data. |
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* |
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* @param string $sessionKey |
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* @param string $iv |
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* @param string $encrypted |
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* |
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* @return array |
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*/ |
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public function decryptData($sessionKey, $iv, $encrypted) |
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{ |
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try { |
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$decrypted = openssl_decrypt( |
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base64_decode($encrypted, true), 'aes-128-cbc', base64_decode($sessionKey, true), |
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OPENSSL_RAW_DATA | OPENSSL_NO_PADDING, base64_decode($iv, true) |
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); |
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} catch (Exception $e) { |
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throw new EncryptionException($e->getMessage(), EncryptionException::ERROR_DECRYPT_AES); |
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} |
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if (is_null($result = json_decode($this->decode($decrypted), true))) { |
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throw new EncryptionException('ILLEGAL_BUFFER', EncryptionException::ILLEGAL_BUFFER); |
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} |
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return $result; |
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} |
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} |
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overtrue /
wechat
