pingan_unionpay/packages/unionpay/src/Action/Init.php

<?php

namespace XuanChen\UnionPay\Action;

use App\Exceptions\ApiException;
use App\Exceptions\ApiUnionpayException;
use App\Models\Log as LogModel;
use Illuminate\Http\Request;

class Init
{

    //传入的参数
    public $params;

    //传入的签名
    public $sign;

    public $msg_type     = '00';

    public $msg_txn_code;

    public $msg_sender;

    public $msg_rsp_code = '0000';

    public $msg_rsp_desc = '成功';

    //入库的模型
    public $model;

    //返回的数据
    public $outdata;

    //网点id
    public $outlet_id;

    //渠道id
    public $agent_id;

    //日志
    public $log;

    //幂等数据
    public $info;

    //内存
    public $mem;

    //开始内存
    public $startMemory;

    /**
     * Notes: 验签
     * @Author: 玄尘
     * @Date  : 2020/9/30 8:39
     * @param false $self 是否是自己的证书
     * @return bool|string
     */
    public function checkSign($out = true, $self = false)
    {
        $sign = $this->hexXbin($this->sign);
        if (!$sign) {
            throw new \Exception('签名错误');
        }
        $public_key = $this->getPublic($self);

        $pub_key_id = openssl_get_publickey($public_key);

        $signStr = $this->getSignString($out);

        if ($pub_key_id) {
            $result = (bool)openssl_verify($signStr, $sign, $pub_key_id);
            openssl_free_key($pub_key_id);
        } else {
            throw new \Exception('私钥格式有误');

        }

        return $result;
    }

    /**
     * Notes: 校验sign
     * @Author: 玄尘
     * @Date  : 2020/10/13 15:21
     * @param       $data
     * @param false $types
     * @return int|string
     */
    public function hexXbin($sign, $types = false)
    {
        // 过滤非16进制字符
        $checkStr = strspn($sign, '0123456789abcdefABCDEF');
        //字符串长度不是偶数时pack来处理
        if (strlen($checkStr) % 2) {
            return pack("H*", $sign);
        } else {
            return hex2bin($sign);
        }
    }

    /**
     * Notes: 签名
     * @Author: 玄尘
     * @Date  : 2020/10/9 15:52
     * @param bool $self
     * @return string
     * @throws \Exception
     */
    public function getSign($out = true)
    {
        $signStr     = $this->getSignString($out);
        $private_key = $this->getPrivate();

        $privKeyId = openssl_pkey_get_private($private_key);
        if (!$privKeyId) {
            throw new \Exception('私钥格式有误');
        }

        if (openssl_sign($signStr, $signature, $privKeyId)) {
            $signature = bin2hex($signature);
        } else {
            throw new \Exception('签名错误');
        }

        openssl_free_key($privKeyId);

        return $signature;
    }

    /**
     * Notes: 获取待签名字符串
     * @Author: 玄尘
     * @Date  : 2020/9/30 9:38
     * @param $out 是否是获取返回值的数据
     * @return string
     */
    public function getSignString($out = false)
    {
        if ($out) {
            $params = array_filter($this->outdata);
        } else {
            $params = array_filter($this->params);
        }

        if (empty($params)) {
            throw new \Exception('缺少数据');
        }

        ksort($params);

        //http_build_query 会自动urlencode 需要转换
        return $this->str2utf8(urldecode(http_build_query($params)));

    }

    //获取私钥
    public function getPrivate()
    {
        $private = config('unionpay.check.self.private');

        if (!file_exists($private)) {
            throw new \Exception('缺少私钥文件');
        }

        return file_get_contents($private);
    }

    //获取公钥
    public function getPublic($self = false)
    {
        $public = config('unionpay.check.unionpay.public');

        if ($self) {
            $public = config('unionpay.check.self.public');
        }

        return file_get_contents($public);
    }

    /**
     * Notes: 插入日志
     * @Author: 玄尘
     * @Date  : 2020/10/9 14:38
     * @return mixed
     */
    public function addLog()
    {
        $log_type = config('unionpay.log_type');
        $data     = [
            'path'      => request()->url(),
            'method'    => request()->method(),
            'type'      => $log_type[$this->msg_txn_code] ?? $this->msg_txn_code,
            'in_source' => $this->params,
        ];

        return $this->log = LogModel::create($data);
    }

    /**
     * Notes: 更新日志
     * @Author: 玄尘
     * @Date  : 2020/10/9 14:46
     */
    public function updateLog()
    {
        $this->log->out_source = $this->outdata;
        $this->log->save();
    }

    /**
     * 将字符串编码转为 utf8
     * @param $str
     * @return string
     */
    public function str2utf8($str)
    {
        $encode = mb_detect_encoding($str, ['ASCII', 'UTF-8', 'GB2312', 'GBK', 'BIG5']);
        if ($encode != 'UTF-8') {
            $str = $str ? $str : mb_convert_encoding($str, 'UTF-8', $encode);
        }
        $str = is_string($str) ? $str : '';

        return $str;
    }

    //输出数据
    public function respond()
    {
        $rt = microtime(true) - LARAVEL_START;

        $header = [
            'rt'          => round($rt * 1000, 2) . 'ms',
            'qps'         => round(1 / $rt, 1), 'company' => 'YSD',
            'startMemory' => $this->startMemory,
            'endMemory'   => round(memory_get_usage() / 1024 / 1024, 2),
        ];

        return \Response::json($this->outdata, 200, $header);
    }

}