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<?php |
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declare(strict_types=1); |
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namespace Yansongda\Pay\Plugin\Wechat; |
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use Closure; |
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use GuzzleHttp\Psr7\Utils; |
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use Yansongda\Pay\Contract\PluginInterface; |
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use Yansongda\Pay\Exception\Exception; |
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use Yansongda\Pay\Exception\InvalidConfigException; |
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use Yansongda\Pay\Exception\InvalidParamsException; |
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use Yansongda\Pay\Logger; |
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use Yansongda\Pay\Rocket; |
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use Yansongda\Supports\Collection; |
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use Yansongda\Supports\Str; |
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class SignPlugin implements PluginInterface |
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{ |
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/** |
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* @throws \Yansongda\Pay\Exception\ContainerException |
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* @throws \Yansongda\Pay\Exception\InvalidConfigException |
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* @throws \Yansongda\Pay\Exception\InvalidParamsException |
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* @throws \Yansongda\Pay\Exception\ServiceNotFoundException |
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* @throws \Exception |
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*/ |
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public function assembly(Rocket $rocket, Closure $next): Rocket |
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{ |
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Logger::info('[wechat][SignPlugin] 插件开始装载', ['rocket' => $rocket]); |
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$timestamp = time(); |
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$random = Str::random(32); |
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$body = $this->payloadToString($rocket->getPayload()); |
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$contents = $this->getContents($rocket, $timestamp, $random); |
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$authorization = $this->getWechatAuthorization($rocket->getParams(), $timestamp, $random, $contents); |
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$radar = $rocket->getRadar()->withHeader('Authorization', $authorization); |
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if (!empty($rocket->getParams()['_serial_no'])) { |
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$radar = $radar->withHeader('Wechatpay-Serial', $rocket->getParams()['_serial_no']); |
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} |
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if (!empty($body)) { |
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$radar = $radar->withBody(Utils::streamFor($body)); |
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} |
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$rocket->setRadar($radar); |
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Logger::info('[wechat][SignPlugin] 插件装载完毕', ['rocket' => $rocket]); |
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return $next($rocket); |
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} |
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/** |
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* @throws \Yansongda\Pay\Exception\ContainerException |
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* @throws \Yansongda\Pay\Exception\InvalidConfigException |
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* @throws \Yansongda\Pay\Exception\ServiceNotFoundException |
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*/ |
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protected function getWechatAuthorization(array $params, int $timestamp, string $random, string $contents): string |
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{ |
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$config = get_wechat_config($params); |
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$mchPublicCertPath = $config->get('mch_public_cert_path'); |
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if (empty($mchPublicCertPath)) { |
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throw new InvalidConfigException(Exception::WECHAT_CONFIG_ERROR, 'Missing Wechat Config -- [mch_public_cert_path]'); |
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} |
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$ssl = openssl_x509_parse(get_public_cert($mchPublicCertPath)); |
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if (empty($ssl['serialNumberHex'])) { |
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throw new InvalidConfigException(Exception::WECHAT_CONFIG_ERROR, 'Parse [mch_public_cert_path] Serial Number Error'); |
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} |
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$auth = sprintf( |
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'mchid="%s",nonce_str="%s",timestamp="%d",serial_no="%s",signature="%s"', |
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$config->get('mch_id', ''), |
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$random, |
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$timestamp, |
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$ssl['serialNumberHex'], |
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get_wechat_sign($params, $contents), |
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); |
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return 'WECHATPAY2-SHA256-RSA2048 '.$auth; |
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} |
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/** |
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* @throws \Yansongda\Pay\Exception\InvalidParamsException |
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*/ |
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protected function getContents(Rocket $rocket, int $timestamp, string $random): string |
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{ |
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$request = $rocket->getRadar(); |
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if (is_null($request)) { |
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throw new InvalidParamsException(Exception::REQUEST_NULL_ERROR); |
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} |
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$uri = $request->getUri(); |
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return $request->getMethod()."\n". |
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$uri->getPath().(empty($uri->getQuery()) ? '' : '?'.$uri->getQuery())."\n". |
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$timestamp."\n". |
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$random."\n". |
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$this->payloadToString($rocket->getPayload())."\n"; |
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} |
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protected function payloadToString(?Collection $payload): string |
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{ |
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return (is_null($payload) || 0 === $payload->count()) ? '' : $payload->toJson(); |
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} |
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} |
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yansongda /
pay
