xyzshop/helper/refill/api/gx/guangxinkc/RefillCallBack.php

<?php
namespace refill\guangxinkc;

require_once(BASE_HELPER_RAPI_PATH . '/guangxinkc/config.php');
use refill;
class RefillCallBack implements refill\IRefillCallBack
{
    public function verify($params): bool
    {
        $input = $params;
        unset($input['sign']);
        $sign = $this->sign($input);
        if ($params['sign'] == $sign) {
            return true;
        } else {
            return false;
        }
    }

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

        return false;
    }

    private function sign($params): string
    {
        ksort($params);

        $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): array
    {
        $status = $params['state'];
        $order_sn = $params['order_sn'];
        $order_info = Model('vr_order')->getOrderInfo(['order_sn' => $order_sn]);
        if (empty($order_info)) {
            return [false, false, false, false, ''];
        }
        $official_sn = strtolower($params['official_sn']) == 'null' ? '' : $params['official_sn'];

        $order_id = $order_info['order_id'];
        if ($status === 'SUCCESS') {
            $data['ch_trade_no'] = $params['trade_no'];
            $data['official_sn'] = $official_sn;
            Model('refill_order')->edit($order_id, $data);
            return [$order_id, true, false, true, $official_sn];
        }
        elseif ($status === 'CANCEL') {
            Model('refill_order')->edit($order_id, ['ch_trade_no' => $params['trade_no']]);
            return [$order_id, false, true, true, ''];
        }
        else {
            return [$order_id, false, false, false, ''];
        }
    }
}