0
点赞
收藏
分享

微信扫一扫

获取小程序的手机号


<?php
namespace App\Service\Encrypted;
/**
* error code 说明.
* <ul>

* <li>-41001: encodingAesKey 非法</li>
* <li>-41003: aes 解密失败</li>
* <li>-41004: 解密后得到的buffer非法</li>
* <li>-41005: base64加密失败</li>
* <li>-41016: base64解密失败</li>
* </ul>
*/
class ErrorCode
{
public static $OK = 0;
public static $IllegalAesKey = -41001;
public static $IllegalIv = -41002;
public static $IllegalBuffer = -41003;
public static $DecodeBase64Error = -41004;
}


<?php
namespace App\Service\Encrypted;

use App\Service\Encrypted\ErrorCode;

class WxBizDataCrypt{
private $appid;
private $sessionKey;

/**
* 构造函数
* @param $sessionKey string 用户在小程序登录后获取的会话密钥
* @param $appid string 小程序的appid
*/
public function __construct( $appid, $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 $encryptedData string 加密的用户数据
* @param $iv string 与用户数据一同返回的初始向量
* @param $data string 解密后的原文
*
* @return int 成功0,失败返回对应的错误码
*/
public function decryptData( $encryptedData, $iv, &$data )
{
if (strlen($this->sessionKey) != 24) {
return ErrorCode::$IllegalAesKey;
}
$aesKey=base64_decode($this->sessionKey);


if (strlen($iv) != 24) {
return ErrorCode::$IllegalIv;
}
$aesIV=base64_decode($iv);

$aesCipher=base64_decode($encryptedData);

$result=openssl_decrypt( $aesCipher, "AES-128-CBC", $aesKey, 1, $aesIV);

$dataObj=json_decode( $result );
if( $dataObj == NULL )
{
return ErrorCode::$IllegalBuffer;
}
if( $dataObj->watermark->appid != $this->appid )
{
return ErrorCode::$IllegalBuffer;
}
$data = $result;
return ErrorCode::$OK;
}
}



public function getwxUserInfo(Request $request){
$appid = env("XCX_APPID",'');
$sessionKey = $request->get("sessionKey",'');
$encryptedData = $request->get("encryptedData",'');
$iv = $request->get("iv",'');
$pc = new WxBizDataCrypt($appid, $sessionKey);
$errCode = $pc->decryptData($encryptedData, $iv,$data);
if ($errCode == 0) {
dump($data . "\n");
} else {
dump($errCode . "\n");
}
}


举报

相关推荐

0 条评论