vendor/codeages/biz-order-pay/src/Pay/Payment/AlipayGateway.php

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<?php

namespace Codeages\Biz\Pay\Payment;

use Codeages\Biz\Framework\Service\Exception\AccessDeniedException;
use Codeages\Biz\Framework\Util\ArrayToolkit;
use Codeages\Biz\Framework\Service\Exception\InvalidArgumentException;
use Omnipay\Omnipay;

class AlipayGateway extends AbstractGateway
{
    public function createTrade($data)
    {
        if (!ArrayToolkit::requireds($data, array(
            'goods_title',
            'goods_detail',
            'attach',
            'trade_sn',
            'amount',
            'notify_url',
            'return_url',
            'create_ip',
        ))) {
            throw new InvalidArgumentException('trade args is invalid.');
        }

        $platformType = empty($data['platform_type']) ? 'Web' : $data['platform_type'];

        if (!in_array($platformType, array('Web', 'Wap'))) {
            throw new InvalidArgumentException("platform_type is invalid, it must be 'web' or 'wap'.");
        }

        $gateway = $this->createGateway($platformType);
        $gateway->setReturnUrl($data['return_url']);
        $gateway->setNotifyUrl($data['notify_url']);

        $method = "make{$platformType}Order";
        $order = $this->$method($data);

        $response = $gateway->purchase($order)->send();

        return array(
            'url' => $response->getRedirectUrl(),
            'data' => $response->getRedirectData(),
        );
    }

    public function closeTrade($trade)
    {
        $platformType = empty($trade['platform_type']) ? 'Web' : $trade['platform_type'];
        $gateway = $this->createGateway($platformType);

        $response = $gateway->close(array(
            'out_trade_no' => $trade['trade_sn'],
        ))->send();

        return $response;
    }

    protected function makeWebOrder($data)