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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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namespace EasyWeChat\MicroMerchant\Certficates; |
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use EasyWeChat\Kernel\Exceptions\InvalidArgumentException; |
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use EasyWeChat\MicroMerchant\Kernel\BaseClient; |
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use EasyWeChat\Kernel\Traits\InteractsWithCache; |
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use EasyWeChat\MicroMerchant\Kernel\Exceptions\InvalidExtensionException; |
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/** |
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* Class Client |
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* |
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* @author liuml <[email protected]> |
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* @DateTime 2019-05-30 14:19 |
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*/ |
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class Client extends BaseClient |
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{ |
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use InteractsWithCache; |
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/** |
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* get certficates |
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* |
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* @return mixed |
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* |
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* @throws \EasyWeChat\Kernel\Exceptions\InvalidArgumentException |
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* @throws \EasyWeChat\Kernel\Exceptions\InvalidConfigException |
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* @throws \EasyWeChat\MicroMerchant\Kernel\Exceptions\InvalidExtensionException |
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* @throws \EasyWeChat\MicroMerchant\Kernel\Exceptions\InvalidSignException |
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* @throws \Psr\SimpleCache\InvalidArgumentException |
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*/ |
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public function getCertficates() |
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{ |
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$certificates = $this->getCache()->get($this->microCertificates); |
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if ($certificates && strtotime($certificates['expire_time']) > time()) { |
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return $certificates; |
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} |
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return $this->refreshCertificate(); |
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} |
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/** |
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* download certficates |
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* |
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* @return mixed |
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* |
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* @throws \EasyWeChat\Kernel\Exceptions\InvalidArgumentException |
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* @throws \EasyWeChat\Kernel\Exceptions\InvalidConfigException |
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* @throws \EasyWeChat\MicroMerchant\Kernel\Exceptions\InvalidExtensionException |
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* @throws \EasyWeChat\MicroMerchant\Kernel\Exceptions\InvalidSignException |
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* @throws \Psr\SimpleCache\InvalidArgumentException |
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*/ |
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private function downloadCertficates() |
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{ |
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$params = [ |
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'sign_type' => 'HMAC-SHA256', |
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'nonce_str' => uniqid('micro'), |
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]; |
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return $this->analytical($this->request('risk/getcertficates', $params)); |
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} |
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/** |
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* analytical certificate |
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* |
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* @param $data |
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* |
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* @return mixed |
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* |
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* @throws \EasyWeChat\Kernel\Exceptions\InvalidArgumentException |
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* @throws \EasyWeChat\MicroMerchant\Kernel\Exceptions\InvalidExtensionException |
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* @throws \Psr\SimpleCache\InvalidArgumentException |
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*/ |
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protected function analytical($data) |
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{ |
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if ($data['return_code'] != 'SUCCESS') { |
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throw new InvalidArgumentException( |
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sprintf( |
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'Failed to download certificate. return_code_msg: "%s" .', |
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$data['return_code'].'('.$data['return_msg'].')' |
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) |
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); |
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} |
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if ($data['result_code'] != 'SUCCESS') { |
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throw new InvalidArgumentException( |
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sprintf( |
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'Failed to download certificate. result_err_code_des: "%s" .', |
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$data['result_code'].'('.$data['err_code'].'['.$data['err_code_des'].'])' |
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) |
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); |
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} |
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$certificates = \GuzzleHttp\json_decode($data['certificates'], JSON_UNESCAPED_UNICODE)['data'][0]; |
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$ciphertext = $this->decryptCiphertext($certificates['encrypt_certificate']); |
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unset($certificates['encrypt_certificate']); |
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$certificates['certificates'] = $ciphertext; |
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$this->getCache()->set($this->microCertificates, $certificates); |
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return $certificates; |
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} |
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/** |
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* decrypt ciphertext |
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* |
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* @param $encryptCertificate |
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* |
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* @return string |
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* |
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* @throws \EasyWeChat\MicroMerchant\Kernel\Exceptions\InvalidExtensionException |
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*/ |
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protected function decryptCiphertext($encryptCertificate) |
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{ |
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if (extension_loaded('sodium') === false) { |
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throw new InvalidExtensionException('sodium extension is not installed，Reference link https://blog.csdn.net/u010324331/article/details/82153067'); |
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} |
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if (sodium_crypto_aead_aes256gcm_is_available() === false) { |
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throw new InvalidExtensionException('aes256gcm is not currently supported'); |
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} |
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// sodium_crypto_aead_aes256gcm_decrypt function needs to open libsodium extension. |
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// https://blog.csdn.net/u010324331/article/details/82153067 |
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return sodium_crypto_aead_aes256gcm_decrypt( |
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base64_decode($encryptCertificate['ciphertext']), |
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$encryptCertificate['associated_data'], |
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$encryptCertificate['nonce'], |
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$this->app['config']->apiv3_key |
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); |
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} |
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/** |
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* refresh certificate |
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* |
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* @return mixed |
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* |
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* @throws \EasyWeChat\Kernel\Exceptions\InvalidArgumentException |
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* @throws \EasyWeChat\Kernel\Exceptions\InvalidConfigException |
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* @throws \EasyWeChat\MicroMerchant\Kernel\Exceptions\InvalidExtensionException |
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* @throws \EasyWeChat\MicroMerchant\Kernel\Exceptions\InvalidSignException |
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* @throws \Psr\SimpleCache\InvalidArgumentException |
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*/ |
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public function refreshCertificate() |
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{ |
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return $this->downloadCertficates(); |
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} |
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} |
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overtrue /
wechat
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