You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
65 lines
2.3 KiB
65 lines
2.3 KiB
<?php
|
|
// +----------------------------------------------------------------------
|
|
// | 萤火商城系统 [ 致力于通过产品和服务，帮助商家高效化开拓市场 ]
|
|
// +----------------------------------------------------------------------
|
|
// | Copyright (c) 2017~2023 https://www.yiovo.com All rights reserved.
|
|
// +----------------------------------------------------------------------
|
|
// | Licensed 这不是一个自由软件，不允许对程序代码以任何形式任何目的的再发行
|
|
// +----------------------------------------------------------------------
|
|
// | Author: 萤火科技 <admin@yiovo.com>
|
|
// +----------------------------------------------------------------------
|
|
declare (strict_types=1);
|
|
|
|
namespace app\common\library\wechat;
|
|
|
|
class WXBizDataCrypt
|
|
{
|
|
private $appid;
|
|
private $sessionKey;
|
|
|
|
/**
|
|
* 构造函数
|
|
* @param string $appid string 小程序的appid
|
|
* @param string $sessionKey string 用户在小程序登录后获取的会话密钥
|
|
*/
|
|
public function __construct(string $appid, string $sessionKey)
|
|
{
|
|
$this->sessionKey = $sessionKey;
|
|
$this->appid = $appid;
|
|
}
|
|
|
|
/**
|
|
* 检验数据的真实性，并且获取解密后的明文.
|
|
* @param string $encryptedData 加密的用户数据
|
|
* @param string $iv 与用户数据一同返回的初始向量
|
|
* @param mixed $content 解密后的原文
|
|
* @return int 成功0，失败返回对应的错误码
|
|
*/
|
|
public function decryptData(string $encryptedData, string $iv, &$content): int
|
|
{
|
|
if (strlen($this->sessionKey) != 24) {
|
|
return ErrorCode::$IllegalAesKey;
|
|
}
|
|
if (strlen($iv) != 24) {
|
|
return ErrorCode::$IllegalIv;
|
|
}
|
|
$aesKey = base64_decode($this->sessionKey);
|
|
$aesIV = base64_decode($iv);
|
|
$aesCipher = base64_decode($encryptedData);
|
|
$result = openssl_decrypt($aesCipher, 'AES-128-CBC', $aesKey, 1, $aesIV);
|
|
|
|
if (empty($result)) {
|
|
return ErrorCode::$IllegalBuffer;
|
|
}
|
|
$resultArr = json_decode($result, true);
|
|
if (empty($resultArr)) {
|
|
return ErrorCode::$IllegalBuffer;
|
|
}
|
|
if ($resultArr['watermark']['appid'] != $this->appid) {
|
|
return ErrorCode::$IllegalBuffer;
|
|
}
|
|
$content = $resultArr;
|
|
return ErrorCode::$OK;
|
|
}
|
|
}
|
|
|
|
|