neiyou_user_web/app/Http/Controllers/Gateway/PayBeaver.php

<?php

/**
 * Created by PayBeaver <merchant.paybeaver.com>
 * Version: 2020-12-06.
 */

namespace App\Http\Controllers\Gateway;

use Auth;
use Http;
use Illuminate\Http\JsonResponse;
use Log;
use Response;

class PayBeaver extends AbstractPayment
{
    private $appId;
    private $appSecret;
    private $url = 'https://api.citipay.net/api/v1/developer';

    public function __construct()
    {
        $this->appId = sysConfig('paybeaver_app_id');
        $this->appSecret = sysConfig('paybeaver_app_secret');
    }

    public function purchase($request): JsonResponse
    {
        $payment = $this->creatNewPayment(Auth::id(), $request->input('id'), $request->input('amount'));

        $result = $this->createOrder($payment);

        //Log::alert('$this->createOrder【海狸支付】创建订单错误：'.var_export($result, true));
        if (isset($result['message'])) {
           // Log::alert('【海狸支付】创建订单错误：'.$result['message']);

            return Response::json(['status' => 'fail', 'message' => '创建订单失败：'.$result['message']]);
        }

        if (! isset($result['data']['pay_url'])) {
           // Log::alert('【海狸支付】创建订单错误：未获取到支付链接'.var_export($result, true));

            return Response::json(['status' => 'fail', 'message' => '创建订单失败：未知错误']);
        }

        $payment->update(['url' => $result['data']['pay_url']]);

        return Response::json(['status' => 'success', 'url' => $result['data']['pay_url'], 'message' => '创建订单成功!']);
    }
    private function post($data)
    {
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_URL, $this->url . '/v1/gateway/fetch');
        curl_setopt($curl, CURLOPT_HEADER, 0);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
        curl_setopt($curl, CURLOPT_POST, 1);
        curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
        $data = curl_exec($curl);
        curl_close($curl);
        return $data;
    }
    private function createOrder($payment)
    {
        $params = [
            'out_trade_no'      => $payment->trade_no,
            'total_amount'      => $payment->amount * 100,
            'notify_url'        => route('payment.notify', ['method' => 'paybeaver']),
            'return_url'        => route('invoice'),
        ];
        $params['app_id'] = $this->appId;

        ksort($params);
        $str = http_build_query($params) . $this->appSecret;
        $params['sign'] = md5($str);
        $response = $this->post(http_build_query($params));
        Log::info('【海狸支付】订单放回结果：'.var_export($response, true));
        $response = json_decode($response,true);
        if (!isset($response['data'])) {
            Log::info('【海狸支付】创建订单失败：'.var_export(['code' => -1, 'msg' => '支付网关处理失败'], true));
            return ['status' => 'fail', 'message' => '获取失败！请检查配置信息'];
        }
        return $response;
    }

    private function sign($params)
    {
//        if (isset($params['sign'])) {
//            unset($params['sign']);
//        }
        ksort($params);

        return md5(http_build_query($params).$this->appSecret);
    }

    public function notify($request): void
    {
        Log::info('【海狸支付】回调接口：'.var_export($request->all(), true));
        if (! $this->paybeaverVerify($request->post())) {
            exit(json_encode(['status' => 400]));
        }

        if ($request->has(['out_trade_no']) && $this->paymentReceived($request->input(['out_trade_no']))  ) {
            $this->addPamentCallback($request->input('out_trade_no'),$request->input('trade_no'),$request->input('money'));
            Log::info('【海狸支付】paymentReceived：'.var_export($request->all(), true));
            exit(json_encode(['status' => 200]));
        }



        exit(json_encode(['status' => 500]));
    }

    private function paybeaverVerify($params)
    {
        $sign = $params['sign'];
        unset($params['sign']);
        ksort($params);
        reset($params);
        $str = http_build_query($params) . $this->appSecret;
        return $sign === md5($str);
        //return hash_equals($params['sign'], $this->sign($params));
    }
}