vendor/codeages/omnipay-alipay/src/Requests/LegacyCloseRequest.php

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<?php

namespace Omnipay\Alipay\Requests;

class LegacyCloseRequest
{
    protected $url = 'https://mapi.alipay.com/gateway.do';

    public function __construct(array $options = null)
    {
        $this->options = $options;
    }

    public function setParams(array $params)
    {
        $this->params = $params;

        return $this;
    }

    public function send()
    {
        $result = $this->postRequest($this->url, $this->convertParams($this->params));

        return $this->parseResponse($result);
    }

    private function parseResponse($result)
    {
        $doc = new \DOMDocument('1.0', 'UTF-8');
        $doc->loadXML($result);

        if (!empty($doc->getElementsByTagName('alipay')->item(0)->nodeValue)) {
            $success = $doc->getElementsByTagName('is_success')->item(0)->nodeValue;
            if ('F' == $success) {
                return new AlipayResponse(false, $doc->getElementsByTagName('error')->item(0)->nodeValue);
            }
        }

        return new AlipayResponse(true);
    }

    private function postRequest($url, $params)
    {
        $curl = curl_init();

        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($curl, CURLOPT_USERAGENT, 'Topxia Payment Client 1.0');
        curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 10);
        curl_setopt($curl, CURLOPT_TIMEOUT, 10);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($curl, CURLOPT_HEADER, 0);

        if (!empty($params)) {
            $url = $url.(strpos($url, '?') ? '&' : '?').http_build_query($params);
        }

        curl_setopt($curl, CURLOPT_URL, $url);

        $response = curl_exec($curl);