xyzshop/helper/refill/api/xyz/xuyou_hf/RefillCallBack.php

<?php
namespace refill\xuyou_hf;

require_once(BASE_HELPER_RAPI_PATH . '/xuyou_hf/config.php');
use refill;
class RefillCallBack implements refill\IRefillCallBack
{

    private function req_params(array $input) : array
    {
        $params['mchid'] = $input['mchid'];
        $params['orderid'] = $input['orderid'];
        $params['oid'] = $input['oid'];
        $params['number'] = $input['number'];
        $params['status'] = $input['status'];
        return $params;
    }

    public function verify($params): bool
    {
        $input = $params;
        unset($input['sign']);
        $input = $this->req_params($input);
        $sign = $this->sign($input);
        if ($params['sign'] == $sign) {
            return true;
        } else {
            return false;
        }
    }

    protected function check_empty($value)
    {
        if (!isset($value))
            return true;
        if ($value === null)
            return true;
        if (trim($value) === "")
            return true;

        return false;
    }

    private function sign($params) : string
    {
        $body = "";
        $i = 0;
        foreach ($params as $k => $v) {
            if (false === $this->check_empty($v) && "@" != substr($v, 0, 1)) {
                if ($i == 0) {
                    $body .= "{$k}" . "=" . urlencode($v);
                } else {
                    $body .= "&" . "{$k}" . "=" . urlencode($v);
                }
                $i++;
            }
        }

        $body .= "&key=".config::KEY;
        return md5($body);
    }

    public function notify($params)
    {
        $status = $params['status'];
        $order_sn = $params['orderid'];
        $order_info = Model('vr_order')->getOrderInfoForNotify(['order_sn' => $order_sn]);
        if (empty($order_info)) {
            return [false, false, false,false];
        }
        $order_id = $order_info['order_id'];
        if ($status === 2) {
            $data['ch_trade_no'] = $params['oid'];
            $data['official_sn'] = strtolower($params['voucher']) == 'null' ? '' : $params['voucher'];
            Model('refill_order')->edit($order_id, $data);
            return [$order_id, true, false,true];
        }
        elseif ($status === 3) {
            Model('refill_order')->edit($order_id, ['ch_trade_no' => $params['oid']]);
            return [$order_id, false, true,true];
        }
        else {
            return [$order_id, false, false,false];
        }
    }
}