mirror of
https://gitee.com/zoujingli/WeChatDeveloper.git
synced 2025-04-05 19:41:44 +08:00
237 lines
8.3 KiB
PHP
237 lines
8.3 KiB
PHP
<?php
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// +----------------------------------------------------------------------
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// | WeChatDeveloper
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// +----------------------------------------------------------------------
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// | 版权所有 2014~2020 广州楚才信息科技有限公司 [ http://www.cuci.cc ]
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// +----------------------------------------------------------------------
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// | 官方网站: http://think.ctolog.com
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// +----------------------------------------------------------------------
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// | 开源协议 ( https://mit-license.org )
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// +----------------------------------------------------------------------
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// | github开源项目：https://github.com/zoujingli/WeChatDeveloper
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// +----------------------------------------------------------------------
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namespace WePayV3\Contracts;
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use WeChat\Contracts\Tools;
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use WeChat\Exceptions\InvalidArgumentException;
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use WeChat\Exceptions\InvalidDecryptException;
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use WeChat\Exceptions\InvalidResponseException;
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use WeChat\Exceptions\LocalCacheException;
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use WePayV3\Cert;
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/**
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* 微信支付基础类
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* Class BasicWePay
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* @package WePayV3
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*/
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abstract class BasicWePay
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{
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/**
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* 接口基础地址
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* @var string
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*/
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protected $base = 'https://api.mch.weixin.qq.com';
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/**
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* 实例对象静态缓存
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* @var array
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*/
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static $cache = [];
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/**
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* 配置参数
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* @var array
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*/
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protected $config = [
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'mch_id' => '', // 微信商户编号，需要配置
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'mch_v3_key' => '', // 微信商户密钥，需要配置
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'cert_serial' => '', // 商户证书序号，无需配置
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'cert_public' => '', // 商户公钥内容，需要配置
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'cert_private' => '', // 商户密钥内容，需要配置
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];
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/**
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* BasicWePayV3 constructor.
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* @param array $options [mch_id, mch_v3_key, cert_public, cert_private]
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*/
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public function __construct(array $options = [])
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{
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if (empty($options['mch_id'])) {
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throw new InvalidArgumentException("Missing Config -- [mch_id]");
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}
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if (empty($options['mch_v3_key'])) {
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throw new InvalidArgumentException("Missing Config -- [mch_v3_key]");
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}
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if (empty($options['cert_private'])) {
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throw new InvalidArgumentException("Missing Config -- [cert_private]");
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}
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if (empty($options['cert_public'])) {
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throw new InvalidArgumentException("Missing Config -- [cert_public]");
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}
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$this->config['mch_id'] = $options['mch_id'];
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$this->config['mch_v3_key'] = $options['mch_v3_key'];
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$this->config['cert_public'] = $options['cert_public'];
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$this->config['cert_private'] = $options['cert_private'];
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$this->config['cert_serial'] = openssl_x509_parse($this->config['cert_public'])['serialNumberHex'];
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if (empty($this->config['cert_serial'])) {
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throw new InvalidArgumentException("Failed to parse certificate public key");
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}
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}
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/**
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* 静态创建对象
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* @param array $config
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* @return static
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*/
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public static function instance(array $config)
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{
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$key = md5(get_called_class() . serialize($config));
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if (isset(self::$cache[$key])) return self::$cache[$key];
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return self::$cache[$key] = new static($config);
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}
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/**
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* 模拟发起请求
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* @param string $method 请求访问
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* @param string $pathinfo 请求路由
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* @param string $jsondata 请求数据
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* @param bool $verify 是否验证
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* @return array
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* @throws InvalidResponseException
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* @throws LocalCacheException
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*/
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public function doRequest($method, $pathinfo, $jsondata = '', $verify = false)
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{
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list($time, $nonce) = [time(), uniqid() . rand(1000, 9999)];
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$signstr = join("\n", [
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$method, $pathinfo, $time, $nonce, $jsondata, '',
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]);
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// 生成数据签名TOKEN
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$token = sprintf('mchid="%s",nonce_str="%s",timestamp="%d",serial_no="%s",signature="%s"',
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$this->config['mch_id'], $nonce, $time, $this->config['cert_serial'], $this->signBuild($signstr)
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);
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list($header, $content) = $this->_doRequestCurl($method, $this->base . $pathinfo, [
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'data' => $jsondata, 'header' => [
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"Accept: application/json", "Content-Type: application/json",
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'User-Agent: https://thinkadmin.top', "Authorization: WECHATPAY2-SHA256-RSA2048 {$token}",
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],
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]);
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if ($verify) {
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$headers = [];
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foreach (explode("\n", $header) as $line) {
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if (stripos($line, 'Wechatpay') !== false) {
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list($name, $value) = explode(':', $line);
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list(, $keys) = explode('wechatpay-', strtolower($name));
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$headers[$keys] = trim($value);
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}
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}
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$string = join("\n", [$headers['timestamp'], $headers['nonce'], $content, '']);
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if (!$this->signVerify($string, $headers['signature'], $headers['serial'])) {
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throw new InvalidResponseException("验证响应签名失败");
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}
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}
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return json_decode($content, true);
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}
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/**
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* 通过CURL模拟网络请求
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* @param string $method 请求方法
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* @param string $location 请求方法
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* @param array $options 请求参数 [data, header]
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* @return array [header,content]
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*/
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private function _doRequestCurl($method, $location, $options = [])
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{
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$curl = curl_init();
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// POST数据设置
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if (strtolower($method) === 'post') {
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curl_setopt($curl, CURLOPT_POST, true);
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curl_setopt($curl, CURLOPT_POSTFIELDS, $options['data']);
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}
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// CURL头信息设置
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if (!empty($options['header'])) {
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curl_setopt($curl, CURLOPT_HTTPHEADER, $options['header']);
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}
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curl_setopt($curl, CURLOPT_URL, $location);
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curl_setopt($curl, CURLOPT_HEADER, true);
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curl_setopt($curl, CURLOPT_TIMEOUT, 60);
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curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
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curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
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curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
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$content = curl_exec($curl);
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$headerSize = curl_getinfo($curl, CURLINFO_HEADER_SIZE);
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curl_close($curl);
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return [substr($content, 0, $headerSize), substr($content, $headerSize)];
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}
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/**
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* 生成数据签名
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* @param string $data 签名内容
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* @return string
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*/
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protected function signBuild($data)
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{
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$pkeyid = openssl_pkey_get_private($this->config['cert_private']);
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openssl_sign($data, $signature, $pkeyid, 'sha256WithRSAEncryption');
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return base64_encode($signature);
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}
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/**
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* 验证内容签名
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* @param string $data 签名内容
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* @param string $sign 原签名值
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* @param string $serial 证书序号
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* @return int
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* @throws InvalidResponseException
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* @throws LocalCacheException
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*/
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protected function signVerify($data, $sign, $serial = '')
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{
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$cert = $this->tmpFile($serial);
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if (empty($cert)) {
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Cert::instance($this->config)->download();
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$cert = $this->tmpFile($serial);
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}
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return openssl_verify($data, base64_decode($sign), openssl_x509_read($cert), 'sha256WithRSAEncryption');
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}
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/**
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* 写入或读取临时文件
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* @param string $name
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* @param null|string $content
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* @return string
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* @throws LocalCacheException
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*/
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protected function tmpFile($name, $content = null)
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{
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if (is_null($content)) {
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return base64_decode(Tools::getCache($name) ?: '');
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} else {
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return Tools::setCache($name, base64_encode($content), 7200);
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}
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}
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/**
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* 支付通知
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* @return array
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* @throws InvalidDecryptException
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*/
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public function notify()
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{
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$body = file_get_contents('php://input');
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$data = json_decode($body, true);
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if (isset($data['resource'])) {
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$aes = new DecryptAes($this->config['mch_v3_key']);
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$data['result'] = $aes->decryptToString(
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$data['resource']['associated_data'],
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$data['resource']['nonce'],
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$data['resource']['algorithm']
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);
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}
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return $data;
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}
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} |