WebGateway.php
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<?php
namespace Yansongda\Pay\Gateways\Alipay;
use Symfony\Component\HttpFoundation\Response;
use Yansongda\Pay\Contracts\GatewayInterface;
use Yansongda\Pay\Events;
class WebGateway implements GatewayInterface
{
/**
* Pay an order.
*
* @author yansongda <me@yansongda.cn>
*
* @param string $endpoint
* @param array $payload
*
* @throws \Yansongda\Pay\Exceptions\InvalidConfigException
*
* @return Response
*/
public function pay($endpoint, array $payload): Response
{
$payload['method'] = $this->getMethod();
$payload['biz_content'] = json_encode(array_merge(
json_decode($payload['biz_content'], true),
['product_code' => $this->getProductCode()]
));
$payload['sign'] = Support::generateSign($payload);
Events::dispatch(Events::PAY_STARTED, new Events\PayStarted('Alipay', 'Web/Wap', $endpoint, $payload));
return $this->buildPayHtml($endpoint, $payload);
}
/**
* Build Html response.
*
* @author yansongda <me@yansongda.cn>
*
* @param string $endpoint
* @param array $payload
*
* @return Response
*/
protected function buildPayHtml($endpoint, $payload): Response
{
$sHtml = "<form id='alipaysubmit' name='alipaysubmit' action='".$endpoint."' method='POST'>";
foreach ($payload as $key => $val) {
$val = str_replace("'", ''', $val);
$sHtml .= "<input type='hidden' name='".$key."' value='".$val."'/>";
}
$sHtml .= "<input type='submit' value='ok' style='display:none;'></form>";
$sHtml .= "<script>document.forms['alipaysubmit'].submit();</script>";
return Response::create($sHtml);
}
/**
* Get method config.
*
* @author yansongda <me@yansongda.cn>
*
* @return string
*/
protected function getMethod(): string
{
return 'alipay.trade.page.pay';
}
/**
* Get productCode config.
*
* @author yansongda <me@yansongda.cn>
*
* @return string
*/
protected function getProductCode(): string
{
return 'FAST_INSTANT_TRADE_PAY';
}
}