<?php


use think\Env;

class TongLian
{
    /**
     * 通联支付
     */
    public function TongLianPay($date,  $type) {
        $data['appid'] = Env::get('AllinPay.appId');//平台分配的APPID
        $data['body'] = $date['remarke'];//订单标题(不能有空格）
        $data['cusid'] = Env::get('AllinPay.cusid');//平台分配的商户号
        $data['notify_url'] = get_system_config_value("web_site")."/api/Payment/allinpayNotify";//服务器异步通知页面路径
        if($type == 4){//4通联支付宝 5通联微信
            $data['paytype'] = 'A02';//支付方式  支付宝A02
        }elseif($type == 5){
            $data['paytype'] = 'W06';//支付方式 微信小程序固定W06
        }
        $data['randomstr'] = uniqid();//商户自行生成的随机字符串
        $data['remark'] = $type;//订单备注信息
        $data['reqsn'] = $date['order_sn'];//商户订单号
        $data['version'] = '12';//版本号 默认为12
        $data['trxamt'] = strval($date['money']*100);//付款金额 单位为分
        $data['signtype'] = 'RSA';//签名类型 RSA/RSA2/SM2
        $data['sign'] = $this->Sign($data);//签名

        ksort($data);
//        var_dump($data);die;
        return $data;
    }


    //RSA签名
    public function Sign(array $array){
        ksort($array);
        $bufSignSrc = $this->ToUrlParams($array);
        //用商户的RSA私钥进行签名
        $private_key = Env::get('AllinPay.cusRsaPrivateKey');
        $private_key = chunk_split($private_key , 64, "\n");
        $key = "-----BEGIN RSA PRIVATE KEY-----\n".$private_key."-----END RSA PRIVATE KEY-----";

        if(!openssl_sign($bufSignSrc, $signature, $key)) {
            echo 'sign fail';
        }
        //加密后的内容通常含有特殊字符，需要编码转换下，在网络间通过url传输时要注意base64编码是否是url安全的
        return base64_encode($signature);
    }

    //生成键值对字符串
    public function ToUrlParams(array $array)
    {
        $buff = "";
        foreach ($array as $k => $v)
        {
            if($v != "" && !is_array($v)){
                $buff .= $k . "=" . $v . "&";
            }
        }

        $buff = trim($buff, "&");
        return $buff;
    }

    /**
     * 校验签名
     * @param array 参数
     * @param unknown_type appkey
     */
    public function ValidSign(array $array){
        $sign =$array['sign'];
        unset($array['sign']);
        ksort($array);

        $bufSignSrc = $this->ToUrlParams($array);
        //通联的公钥进行验签
        $public_key = Env::get('AllinPay.allpayrsaPublicKey');
        $public_key = chunk_split($public_key , 64, "\n");
        $key = "-----BEGIN PUBLIC KEY-----\n".$public_key."-----END PUBLIC KEY-----\n";
        $result= openssl_verify($bufSignSrc,base64_decode($sign),$key);
        return $result;
    }

}