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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 WePayV3\Contracts;
use WeChat\Contracts\Tools;
use WeChat\Exceptions\InvalidArgumentException;
use WeChat\Exceptions\InvalidResponseException;
use WePayV3\Cert;
/**
* 微信支付基础类
* Class BasicWePay
* @package WePayV3
*/
abstract class BasicWePay
{
/**
* 接口基础地址
* @var string
*/
protected $base = 'https://api.mch.weixin.qq.com';
/**
* 实例对象静态缓存
* @var array
*/
static $cache = [];
/**
* 配置参数
* @var array
*/
protected $config = [
'appid' => '', // 微信绑定APPID需配置
'mch_id' => '', // 微信商户编号,需要配置
'mch_v3_key' => '', // 微信商户密钥,需要配置
'cert_serial' => '', // 商户证书序号,无需配置
'cert_public' => '', // 商户公钥内容,需要配置
'cert_private' => '', // 商户密钥内容,需要配置
];
/**
* BasicWePayV3 constructor.
* @param array $options [mch_id, mch_v3_key, cert_public, cert_private]
*/
public function __construct(array $options = [])
{
if (empty($options['mch_id'])) {
throw new InvalidArgumentException("Missing Config -- [mch_id]");
}
if (empty($options['mch_v3_key'])) {
throw new InvalidArgumentException("Missing Config -- [mch_v3_key]");
}
if (empty($options['cert_private'])) {
throw new InvalidArgumentException("Missing Config -- [cert_private]");
}
if (empty($options['cert_public'])) {
throw new InvalidArgumentException("Missing Config -- [cert_public]");
}
if (stripos($options['cert_public'], '-----BEGIN CERTIFICATE-----') === false) {
if (file_exists($options['cert_public'])) {
$options['cert_public'] = file_get_contents($options['cert_public']);
} else {
throw new InvalidArgumentException("File Non-Existent -- [cert_public]");
}
}
if (stripos($options['cert_private'], '-----BEGIN PRIVATE KEY-----') === false) {
if (file_exists($options['cert_private'])) {
$options['cert_private'] = file_get_contents($options['cert_private']);
} else {
throw new InvalidArgumentException("File Non-Existent -- [cert_private]");
}
}
$this->config['appid'] = isset($options['appid']) ? $options['appid'] : '';
$this->config['mch_id'] = $options['mch_id'];
$this->config['mch_v3_key'] = $options['mch_v3_key'];
$this->config['cert_public'] = $options['cert_public'];
$this->config['cert_private'] = $options['cert_private'];
$this->config['cert_serial'] = openssl_x509_parse($this->config['cert_public'])['serialNumberHex'];
if (empty($this->config['cert_serial'])) {
throw new InvalidArgumentException("Failed to parse certificate public key");
}
}
/**
* 静态创建对象
* @param array $config
* @return static
*/
public static function instance($config)
{
$key = md5(get_called_class() . serialize($config));
if (isset(self::$cache[$key])) return self::$cache[$key];
return self::$cache[$key] = new static($config);
}
/**
* 模拟发起请求
* @param string $method 请求访问
* @param string $pathinfo 请求路由
* @param string $jsondata 请求数据
* @param bool $verify 是否验证
* @return array
* @throws \WeChat\Exceptions\InvalidResponseException
*/
public function doRequest($method, $pathinfo, $jsondata = '', $verify = false)
{
list($time, $nonce) = [time(), uniqid() . rand(1000, 9999)];
$signstr = join("\n", [$method, $pathinfo, $time, $nonce, $jsondata, '']);
// 生成数据签名TOKEN
$token = sprintf('mchid="%s",nonce_str="%s",timestamp="%d",serial_no="%s",signature="%s"',
$this->config['mch_id'], $nonce, $time, $this->config['cert_serial'], $this->signBuild($signstr)
);
list($header, $content) = $this->_doRequestCurl($method, $this->base . $pathinfo, [
'data' => $jsondata, 'header' => [
"Accept: application/json", "Content-Type: application/json",
'User-Agent: https://thinkadmin.top', "Authorization: WECHATPAY2-SHA256-RSA2048 {$token}",
],
]);
if ($verify) {
$headers = [];
foreach (explode("\n", $header) as $line) {
if (stripos($line, 'Wechatpay') !== false) {
list($name, $value) = explode(':', $line);
list(, $keys) = explode('wechatpay-', strtolower($name));
$headers[$keys] = trim($value);
}
}
try {
$string = join("\n", [$headers['timestamp'], $headers['nonce'], $content, '']);
if (!$this->signVerify($string, $headers['signature'], $headers['serial'])) {
throw new InvalidResponseException("验证响应签名失败");
}
} catch (\Exception $exception) {
throw new InvalidResponseException($exception->getMessage(), $exception->getCode());
}
}
return json_decode($content, true);
}
/**
* 通过CURL模拟网络请求
* @param string $method 请求方法
* @param string $location 请求方法
* @param array $options 请求参数 [data, header]
* @return array [header,content]
*/
private function _doRequestCurl($method, $location, $options = [])
{
$curl = curl_init();
// POST数据设置
if (strtolower($method) === 'post') {
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $options['data']);
}
// CURL头信息设置
if (!empty($options['header'])) {
curl_setopt($curl, CURLOPT_HTTPHEADER, $options['header']);
}
curl_setopt($curl, CURLOPT_URL, $location);
curl_setopt($curl, CURLOPT_HEADER, true);
curl_setopt($curl, CURLOPT_TIMEOUT, 60);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
$content = curl_exec($curl);
$headerSize = curl_getinfo($curl, CURLINFO_HEADER_SIZE);
curl_close($curl);
return [substr($content, 0, $headerSize), substr($content, $headerSize)];
}
/**
* 生成数据签名
* @param string $data 签名内容
* @return string
*/
protected function signBuild($data)
{
$pkeyid = openssl_pkey_get_private($this->config['cert_private']);
openssl_sign($data, $signature, $pkeyid, 'sha256WithRSAEncryption');
return base64_encode($signature);
}
/**
* 验证内容签名
* @param string $data 签名内容
* @param string $sign 原签名值
* @param string $serial 证书序号
* @return int
* @throws \WeChat\Exceptions\InvalidResponseException
* @throws \WeChat\Exceptions\LocalCacheException
*/
protected function signVerify($data, $sign, $serial = '')
{
$cert = $this->tmpFile($serial);
if (empty($cert)) {
Cert::instance($this->config)->download();
$cert = $this->tmpFile($serial);
}
return @openssl_verify($data, base64_decode($sign), openssl_x509_read($cert), 'sha256WithRSAEncryption');
}
/**
* 写入或读取临时文件
* @param string $name
* @param null|string $content
* @return string
* @throws \WeChat\Exceptions\LocalCacheException
*/
protected function tmpFile($name, $content = null)
{
if (is_null($content)) {
return base64_decode(Tools::getCache($name) ?: '');
} else {
return Tools::setCache($name, base64_encode($content), 7200);
}
}
}