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<?php |
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declare(strict_types=1); |
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namespace Yansongda\Pay\Plugin\Epay; |
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use Closure; |
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use Yansongda\Artful\Contract\PluginInterface; |
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use Yansongda\Artful\Exception\ContainerException; |
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use Yansongda\Artful\Exception\InvalidConfigException; |
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use Yansongda\Artful\Exception\InvalidResponseException; |
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use Yansongda\Artful\Exception\ServiceNotFoundException; |
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use Yansongda\Artful\Logger; |
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use Yansongda\Artful\Rocket; |
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use Yansongda\Pay\Exception\Exception; |
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use Yansongda\Supports\Arr; |
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use Yansongda\Supports\Collection; |
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use Yansongda\Supports\Str; |
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use function Yansongda\Artful\should_do_http_request; |
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use function Yansongda\Pay\get_provider_config; |
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class VerifySignaturePlugin implements PluginInterface |
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{ |
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/** |
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* @throws ServiceNotFoundException |
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* @throws InvalidConfigException |
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* @throws InvalidResponseException |
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* @throws ContainerException |
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*/ |
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public function assembly(Rocket $rocket, Closure $next): Rocket |
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{ |
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/* @var Rocket $rocket */ |
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$rocket = $next($rocket); |
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Logger::info('[Epay][VerifySignaturePlugin] 插件开始装载', ['rocket' => $rocket]); |
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if (should_do_http_request($rocket->getDirection())) { |
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$params = $rocket->getParams(); |
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$config = get_provider_config('epay', $params); |
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$body = (string) $rocket->getDestinationOrigin()->getBody(); |
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$this->verifySign($config, $body); |
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} |
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Logger::info('[Epay][VerifySignaturePlugin] 插件装载完毕', ['rocket' => $rocket]); |
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return $rocket; |
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} |
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/** |
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* @throws InvalidResponseException |
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* @throws InvalidConfigException |
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*/ |
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protected function verifySign(array $config, string $body): void |
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{ |
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// 解析签名 |
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$signatureData = $this->getSignatureData($body); |
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if (!$signatureData['sign']) { |
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throw new InvalidResponseException(Exception::PARAMS_NECESSARY_PARAMS_MISSING, 'Verify Epay Response Sign Failed: sign is empty', $body); |
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} |
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$publicCert = $config['epay_public_cert_path'] ?? null; |
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if (empty($publicCert)) { |
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throw new InvalidConfigException(Exception::PARAMS_NECESSARY_PARAMS_MISSING, 'Missing Epay Config -- [epay_public_cert_path]'); |
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} |
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$result = 1 === openssl_verify( |
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$signatureData['data'], |
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base64_decode($signatureData['sign']), |
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file_get_contents($publicCert) |
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); |
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if (!$result) { |
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throw new InvalidResponseException(Exception::PARAMS_NECESSARY_PARAMS_MISSING, 'Verify Epay Response Sign Failed', func_get_args()); |
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} |
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} |
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protected function query(string $body): array |
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{ |
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$result = []; |
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foreach (explode('&', $body) as $item) { |
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$pos = strpos($item, '='); |
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if (!$pos) { |
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continue; |
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} |
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$result[substr($item, 0, $pos)] = substr($item, $pos + 1); |
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} |
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return $result; |
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} |
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private function getSignatureData(string $body): array |
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{ |
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if (Str::contains($body, '&-&')) { |
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$beginIndex = strpos($body, '&signType='); |
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$endIndex = strpos($body, '&-&'); |
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$data = substr($body, 0, $beginIndex).substr($body, $endIndex); |
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$signIndex = strpos($body, '&sign='); |
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$signature = substr($body, $signIndex + strlen('&sign='), $endIndex - ($signIndex + strlen('&sign='))); |
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} else { |
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$result = Arr::wrapQuery($body, true); |
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$result = Collection::wrap($result); |
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$signature = $result->get('sign'); |
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$result->forget('sign'); |
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$result->forget('signType'); |
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$data = $result->sortKeys()->toString(); |
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} |
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return [ |
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'sign' => $signature, |
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'data' => $data, |
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]; |
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} |
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} |
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yansongda /
pay
