WebGateway.php
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<?php
namespace Yansongda\Pay\Gateways\Wechat;
use Symfony\Component\HttpFoundation\RedirectResponse;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpFoundation\Request;
use Yansongda\Pay\Events;
use Yansongda\Pay\Exceptions\GatewayException;
use Yansongda\Pay\Exceptions\InvalidArgumentException;
use Yansongda\Pay\Exceptions\InvalidSignException;
use Yansongda\Supports\Collection;
class WebGateway extends Gateway
{
/**
* Pay an order.
*
* @param string $endpoint
* @param array $payload
*
* @author yansongda <me@yansongda.cn>
*
*/
public function pay($endpoint, array $payload): Response
{
$payload['spbill_create_ip'] = Request::createFromGlobals()->server->get('SERVER_ADDR');
$payload['trade_type'] = $this->getTradeType();
$code_url = $this->preOrder($payload)['code_url'];
$params = [
'body' => $payload['body'],
'code_url' => $code_url,
'out_trade_no' => $payload['out_trade_no'],
'return_url' => Support::getInstance()->return_url,
'total_fee' => $payload['total_fee'],
];
$params['sign'] = md5(implode('', $params) . Support::getInstance()->app_id);
$endpoint = addon_url("epay/api/wechat");
Events::dispatch(new Events\PayStarted('Wechat', 'Web/Wap', $endpoint, $payload));
return $this->buildPayHtml($endpoint, $params);
}
/**
* Build Html response.
*
* @param string $endpoint
* @param array $payload
* @param string $method
*
* @return Response
* @author yansongda <me@yansongda.cn>
*
*/
protected function buildPayHtml($endpoint, $payload, $method = 'POST'): Response
{
if (strtoupper($method) === 'GET') {
return RedirectResponse::create($endpoint . '?' . http_build_query($payload));
}
$sHtml = "<form id='wechat_submit' name='wechat_submit' action='" . $endpoint . "' method='" . $method . "'>";
foreach ($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>";
$sHtml .= "<script>document.forms['wechat_submit'].submit();</script>";
return Response::create($sHtml);
}
/**
* Get trade type config.
*
* @return string
* @author yansongda <me@yansongda.cn>
*
*/
protected function getTradeType(): string
{
return 'NATIVE';
}
}