CRMEB开源版增加分帐功能（服务商模式下）
  • 分类：建站问题
  • 发表：2025-01-19
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1、增加微信支付分帐功能

官方文档：https://pay.weixin.qq.com/doc/v3/partner/4012690944

分帐商户的来源为供应商，另外的问题，不赘述，在供应商信息修改的页面引用支付操作。

//引用服务
use crmeb\services\pay\Pay;
//相关代码段
//添加分账接收方
                $pay = new Pay('v3_wechat_pay');
                $res = $pay->receiversAdd($data['transfer_type'], $account, $name, 'SUPPLIER');
                if (!array_key_exists('message', $res)){
                    $data['is_sign'] = 1;
                }else{
                    throw new AdminException($res['message']);
                }

相应的服务文件增加入口，开启V3支付时，文件为：\crmeb\services\pay\storage\V3WechatPay.php，添加函数：

/**
     *  添加分帐用户
     * @author yi716
     */
    public function receiversAdd($type, string $account, string $name, string $relation_type)
    {
        return $this->instance->v3pay->receiversAdd($type, $account, $name, $relation_type);
    }

在上面的文件中，因为新增了部分的字段，所以需要把常量增加上去，在initialize函数中增加以下：

$config['v3_payment']['mer_type'] = $merType = sys_config('mer_type');
        if ($merType) {  // by yi716
            $config['v3_payment']['sub_mch_id'] = trim(sys_config('pay_sub_merchant_id'));
            $config['v3_payment']['sp_appid'] = trim(sys_config('sp_appid'));
            $config['v3_payment']['sub_cert_path'] = public_path() . $this->getPemPath(sys_config('pay_sub_weixin_client_cert'));
            $config['v3_payment']['sub_key_path'] = public_path() . $this->getPemPath(sys_config('pay_sub_weixin_client_key'));
            $config['v3_payment']['sub_serial_no'] = trim(sys_config('pay_pub_weixin_serial_no'));
            $config['v3_payment']['sub_key'] = trim(sys_config('pay_sub_weixin_key_v3'));
        }

在具体操作文件中添加处理函数，如\crmeb\services\easywechat\v3pay\PayClient.php中，添加函数：

//增加接口常量
//添加分帐接收方-服务商模式 by yi716
    const API_PROFITSHAREING_RECEIVERS_ADD_URL = 'v3/profitsharing/receivers/add';
    //删除分帐接收方-服务商模式 by yi716
    const API_PROFITSHAREING_RECEIVERS_DEL_URL = 'v3/profitsharing/receivers/delete';
    //请求分帐-服务商模式  by yi716
    const API_PROFITSHAREING_ORDERS_URL = 'v3/profitsharing/orders';
    //查询分帐结果-服务商 by yi716
    const API_PROFITSHAREING_ORDERS_SHOW_URL = 'v3/profitsharing/orders/{out_order_no}';
    //请求分帐退回-服务商模式  by yi716
    const API_PROFITSHAREING_RETURN_URL = 'v3/profitsharing/return-orders';

/*
    *   添加分帐接收方-服务商模式   by yi716
    *   type 1:用户，子商户OPENID 2:商户号
    */
    public function receiversAdd($type = 1, $account = '', $name='', $relation_type = 'SUPPLIER'){
        
        $type == 1 ? 'PERSONAL_SUB_OPENID' : 'MERCHANT_ID';
        
        //$this->app['config']['v3_payment']['mer_type'];
        
        $data = [
            'appid' => $this->app['config']['v3_payment']['sp_appid'],
            'sub_appid' => $this->app['config']['miniprog']['appid'],
            'sub_mchid' => $this->app['config']['v3_payment']['sub_mch_id'],
            'type' => ($type == 1) ? 'PERSONAL_SUB_OPENID' : 'MERCHANT_ID',
            'account' => $account,
            'relation_type' => $relation_type,
        ];
        if ($type == 2){
            $data['name'] = self::getEncrypt($name);
        }
        
        $datas = ['json' => $data];
        $res = $this->request(self::API_PROFITSHAREING_RECEIVERS_ADD_URL, 'POST', $datas);
        
        if (array_key_exists('message', $res)) {
            throw new PayException($res['message']);
        }
        return $res;
    }
    
    private function getEncrypt($str) {
      //$str是待加密字符串 
      $public_key_path = $this->app['config']['v3_payment']['sub_key_path'];
      $public_key = file_get_contents($public_key_path);
      //$public_key = file_get_contents($this->app['config']['v3_payment']['cert_path']);
      $encrypted = '';
      if (openssl_public_encrypt($str, $encrypted, $public_key, OPENSSL_PKCS1_OAEP_PADDING)) {
        $sign = base64_encode($encrypted);
      } else {
        throw new PayException('encrypt failed');
      } 
      return $sign;
    }

相关的坑：

1、当用户角色为商户时，需要上报name字段。

2、name字段需要加密，官方文档是可采用【微信支付公钥ID】或【微信支付平台证书序列号】进行加密，但是微信支付公钥ID功能在V3环境下已不存在，所以需要采用微信支付平台证书序列号，服务商模式下，是需要以服务端的证书和密钥来产生的。

证书下载文档地址：平台证书简介及使用说明_平台证书|微信支付商户文档中心

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