Crypt.php
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<?php
// +----------------------------------------------------------------------
// | WeChatDeveloper
// +----------------------------------------------------------------------
// | 版权所有 2014~2024 ThinkAdmin [ thinkadmin.top ]
// +----------------------------------------------------------------------
// | 官方网站: https://thinkadmin.top
// +----------------------------------------------------------------------
// | 开源协议 ( https://mit-license.org )
// | 免责声明 ( https://thinkadmin.top/disclaimer )
// +----------------------------------------------------------------------
// | gitee 代码仓库：https://gitee.com/zoujingli/WeChatDeveloper
// | github 代码仓库：https://github.com/zoujingli/WeChatDeveloper
// +----------------------------------------------------------------------
namespace WeMini;
use WeChat\Contracts\BasicWeChat;
use WeChat\Contracts\Tools;
use WeChat\Exceptions\InvalidDecryptException;
use WeChat\Exceptions\InvalidResponseException;
use WXBizDataCrypt;
/**
* 数据加密处理
* Class Crypt
* @package WeMini
*/
class Crypt extends BasicWeChat
{
/**
* 数据签名校验
* @param string $iv
* @param string $sessionKey
* @param string $encryptedData
* @return bool|array
*/
public function decode($iv, $sessionKey, $encryptedData)
{
require_once __DIR__ . DIRECTORY_SEPARATOR . 'crypt' . DIRECTORY_SEPARATOR . 'wxBizDataCrypt.php';
$pc = new WXBizDataCrypt($this->config->get('appid'), $sessionKey);
$errCode = $pc->decryptData($encryptedData, $iv, $data);
if ($errCode == 0) {
return json_decode($data, true);
}
return false;
}
/**
* 登录凭证校验
* @param string $code 登录时获取的 code
* @return array
* @throws \WeChat\Exceptions\LocalCacheException
*/
public function session($code)
{
$appid = $this->config->get('appid');
$secret = $this->config->get('appsecret');
$url = "https://api.weixin.qq.com/sns/jscode2session?appid={$appid}&secret={$secret}&js_code={$code}&grant_type=authorization_code";
return json_decode(Tools::get($url), true);
}
/**
* 换取用户信息
* @param string $code 用户登录凭证（有效期五分钟）
* @param string $iv 加密算法的初始向量
* @param string $encryptedData 加密数据( encryptedData )
* @return array
* @throws \WeChat\Exceptions\InvalidDecryptException
* @throws \WeChat\Exceptions\InvalidResponseException
* @throws \WeChat\Exceptions\LocalCacheException
*/
public function userInfo($code, $iv, $encryptedData)
{
$result = $this->session($code);
if (empty($result['session_key'])) {
throw new InvalidResponseException('Code 换取 SessionKey 失败', 403);
}
$userinfo = $this->decode($iv, $result['session_key'], $encryptedData);
if (empty($userinfo)) {
throw new InvalidDecryptException('用户信息解析失败', 403);
}
return array_merge($result, $userinfo);
}
/**
* 通过授权码换取手机号
* @param string $code
* @return array
* @throws \WeChat\Exceptions\InvalidResponseException
* @throws \WeChat\Exceptions\LocalCacheException
*/
public function getPhoneNumber($code)
{
$url = 'https://api.weixin.qq.com/wxa/business/getuserphonenumber?access_token=ACCESS_TOKEN';
$this->registerApi($url, __FUNCTION__, func_get_args());
return $this->httpPostForJson($url, ['code' => $code], true);
}
/**
* 用户支付完成后，获取该用户的 UnionId
* @param string $openid 支付用户唯一标识
* @param null|string $transaction_id 微信支付订单号
* @param null|string $mch_id 微信支付分配的商户号，和商户订单号配合使用
* @param null|string $out_trade_no 微信支付商户订单号，和商户号配合使用
* @return array
* @throws \WeChat\Exceptions\InvalidResponseException
* @throws \WeChat\Exceptions\LocalCacheException
*/
public function getPaidUnionId($openid, $transaction_id = null, $mch_id = null, $out_trade_no = null)
{
$url = "https://api.weixin.qq.com/wxa/getpaidunionid?access_token=ACCESS_TOKEN&openid={$openid}";
if (is_null($mch_id)) $url .= "&mch_id={$mch_id}";
if (is_null($out_trade_no)) $url .= "&out_trade_no={$out_trade_no}";
if (is_null($transaction_id)) $url .= "&transaction_id={$transaction_id}";
$this->registerApi($url, __FUNCTION__, func_get_args());
return $this->callGetApi($url);
}
}