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2025-08-01 11:39:06 +08:00
<?php
// +----------------------------------------------------------------------
// | WeChatDeveloper
// +----------------------------------------------------------------------
// | 版权所有 2014~2022 广州楚才信息科技有限公司 [ http://www.cuci.cc ]
// +----------------------------------------------------------------------
// | 官方网站: https://thinkadmin.top
// +----------------------------------------------------------------------
// | 开源协议 ( https://mit-license.org )
// +----------------------------------------------------------------------
// | github开源项目https://github.com/zoujingli/WeChatDeveloper
// +----------------------------------------------------------------------
namespace WeChat\Contracts;
use WeChat\Exceptions\InvalidArgumentException;
use WeChat\Exceptions\InvalidResponseException;
/**
* 微信支付基础类
* Class BasicPay
* @package WeChat\Contracts
*/
class BasicWePay
{
/**
* 商户配置
* @var DataArray
*/
protected $config;
/**
* 当前请求数据
* @var DataArray
*/
protected $params;
/**
* 静态缓存
* @var static
*/
protected static $cache;
/**
* WeChat constructor.
* @param array $options
*/
public function __construct(array $options)
{
if (empty($options['appid'])) {
throw new InvalidArgumentException("Missing Config -- [appid]");
}
if (empty($options['mch_id'])) {
throw new InvalidArgumentException("Missing Config -- [mch_id]");
}
if (empty($options['mch_key'])) {
throw new InvalidArgumentException("Missing Config -- [mch_key]");
}
if (!empty($options['cache_path'])) {
Tools::$cache_path = $options['cache_path'];
}
$this->config = new DataArray($options);
// 商户基础参数
$this->params = new DataArray([
'appid' => $this->config->get('appid'),
'mch_id' => $this->config->get('mch_id'),
'nonce_str' => Tools::createNoncestr(),
]);
// 商户参数支持
if ($this->config->get('sub_appid')) {
$this->params->set('sub_appid', $this->config->get('sub_appid'));
}
if ($this->config->get('sub_mch_id')) {
$this->params->set('sub_mch_id', $this->config->get('sub_mch_id'));
}
}
/**
* 静态创建对象
* @param array $config
* @return static
*/
public static function instance(array $config)
{
$key = md5(get_called_class() . serialize($config));
if (isset(self::$cache[$key])) return self::$cache[$key];
return self::$cache[$key] = new static($config);
}
/**
* 获取微信支付通知
* @return array
* @throws \WeChat\Exceptions\InvalidResponseException
*/
public function getNotify()
{
$data = Tools::xml2arr(file_get_contents('php://input'));
if (isset($data['sign']) && $this->getPaySign($data) === $data['sign']) {
return $data;
}
throw new InvalidResponseException('Invalid Notify.', '0');
}
/**
* 获取微信支付通知回复内容
* @return string
*/
public function getNotifySuccessReply()
{
return Tools::arr2xml(['return_code' => 'SUCCESS', 'return_msg' => 'OK']);
}
/**
* 生成支付签名
* @param array $data 参与签名的数据
* @param string $signType 参与签名的类型
* @param string $buff 参与签名字符串前缀
* @return string
*/
public function getPaySign(array $data, $signType = 'MD5', $buff = '')
{
ksort($data);
if (isset($data['sign'])) unset($data['sign']);
foreach ($data as $k => $v) {
if ('' === $v || null === $v) continue;
$buff .= "{$k}={$v}&";
}
$buff .= ("key=" . $this->config->get('mch_key'));
if (strtoupper($signType) === 'MD5') {
return strtoupper(md5($buff));
}
return strtoupper(hash_hmac('SHA256', $buff, $this->config->get('mch_key')));
}
/**
* 转换短链接
* @param string $longUrl 需要转换的URL签名用原串传输需URLencode
* @return array
* @throws \WeChat\Exceptions\InvalidResponseException
* @throws \WeChat\Exceptions\LocalCacheException
*/
public function shortUrl($longUrl)
{
$url = 'https://api.mch.weixin.qq.com/tools/shorturl';
return $this->callPostApi($url, ['long_url' => $longUrl]);
}
/**
* 数组直接转xml数据输出
* @param array $data
* @param bool $isReturn
* @return string
*/
public function toXml(array $data, $isReturn = false)
{
$xml = Tools::arr2xml($data);
if ($isReturn) {
return $xml;
}
echo $xml;
}
/**
* Post 请求接口
* @param string $url 请求
* @param array $data 接口参数
* @param bool $isCert 是否需要使用双向证书
* @param string $signType 数据签名类型 MD5|SHA256
* @param bool $needSignType 是否需要传签名类型参数
* @param bool $needNonceStr
* @return array
* @throws \WeChat\Exceptions\InvalidResponseException
* @throws \WeChat\Exceptions\LocalCacheException
*/
protected function callPostApi($url, array $data, $isCert = false, $signType = 'HMAC-SHA256', $needSignType = true, $needNonceStr = true)
{
$option = [];
if ($isCert) {
$option['ssl_p12'] = $this->config->get('ssl_p12');
$option['ssl_cer'] = $this->config->get('ssl_cer');
$option['ssl_key'] = $this->config->get('ssl_key');
if (is_string($option['ssl_p12']) && file_exists($option['ssl_p12'])) {
$content = file_get_contents($option['ssl_p12']);
if (openssl_pkcs12_read($content, $certs, $this->config->get('mch_id'))) {
$option['ssl_key'] = Tools::pushFile(md5($certs['pkey']) . '.pem', $certs['pkey']);
$option['ssl_cer'] = Tools::pushFile(md5($certs['cert']) . '.pem', $certs['cert']);
} else throw new InvalidArgumentException("P12 certificate does not match MCH_ID --- ssl_p12");
}
if (empty($option['ssl_cer']) || !file_exists($option['ssl_cer'])) {
throw new InvalidArgumentException("Missing Config -- ssl_cer", '0');
}
if (empty($option['ssl_key']) || !file_exists($option['ssl_key'])) {
throw new InvalidArgumentException("Missing Config -- ssl_key", '0');
}
}
$params = $this->params->merge($data);
if (!$needNonceStr) unset($params['nonce_str']);
if ($needSignType) $params['sign_type'] = strtoupper($signType);
$params['sign'] = $this->getPaySign($params, $signType);
$result = Tools::xml2arr(Tools::post($url, Tools::arr2xml($params), $option));
if ($result['return_code'] !== 'SUCCESS') {
throw new InvalidResponseException($result['return_msg'], '0');
}
return $result;
}
}