pay/plugins/shengpay/inc/ShengPayClient.php
2025-11-28 10:08:12 +08:00

111 lines
3.0 KiB
PHP

<?php
/**
* https://docs.shengpay.com/
*/
class ShengPayClient
{
//接口地址
private $gatewayUrl = 'https://mchapi.shengpay.com';
//商户号
private $mchId;
//商户私钥
private $mchPrivateKey;
//盛付通公钥
private $sdpPublicKey;
private $signType = 'RSA';
public function __construct($mchId, $mchPrivateKey, $sdpPublicKey)
{
$this->mchId = $mchId;
$this->mchPrivateKey = $mchPrivateKey;
$this->sdpPublicKey = $sdpPublicKey;
}
//请求API接口并解析返回数据
public function execute($path, $params)
{
$requrl = $this->gatewayUrl . $path;
$params['mchId'] = $this->mchId;
$params['nonceStr'] = md5(uniqid(mt_rand(), true) . microtime());
$params['signType'] = $this->signType;
$params['sign'] = $this->generateSign($params);
$response = get_curl($requrl, json_encode($params), 0, 0, 0, 0, 0, ['Content-Type: application/json; charset=utf-8']);
$result = json_decode($response, true);
if(isset($result['returnCode']) && $result['returnCode']=='SUCCESS'){
if($result['resultCode'] == 'SUCCESS'){
if(isset($result['sign'])){
if(!$this->verifySign($result)){
throw new Exception('返回数据验签失败');
}
}
return $result;
}else{
throw new Exception('['.$result['errorCode'].']'.$result['errorCodeDes']);
}
}elseif(isset($result['returnMsg'])){
throw new Exception($result['returnMsg']);
}else{
throw new Exception('返回数据解析失败');
}
}
//获取待签名字符串
private function getSignContent($param){
ksort($param);
$signstr = '';
foreach($param as $k => $v){
if($k != "sign" && $v!=='' && $v!==null){
$signstr .= $k.'='.$v.'&';
}
}
$signstr = substr($signstr,0,-1);
return $signstr;
}
//请求参数签名
private function generateSign($param){
return $this->rsaPrivateSign($this->getSignContent($param));
}
//验签方法
public function verifySign($param){
if(empty($param['sign'])) return false;
return $this->rsaPubilcSign($this->getSignContent($param), $param['sign']);
}
//应用私钥签名
private function rsaPrivateSign($data){
$priKey = $this->mchPrivateKey;
$res = "-----BEGIN RSA PRIVATE KEY-----\n" .
wordwrap($priKey, 64, "\n", true) .
"\n-----END RSA PRIVATE KEY-----";
$pkeyid = openssl_pkey_get_private($res);
if(!$pkeyid){
throw new Exception('签名失败,应用私钥不正确');
}
openssl_sign($data, $signature, $pkeyid);
$signature = base64_encode($signature);
return $signature;
}
//平台公钥验签
private function rsaPubilcSign($data, $signature){
$pubKey = $this->sdpPublicKey;
$res = "-----BEGIN PUBLIC KEY-----\n" .
wordwrap($pubKey, 64, "\n", true) .
"\n-----END PUBLIC KEY-----";
$pubkeyid = openssl_pkey_get_public($res);
if(!$pubkeyid){
throw new Exception('验签失败,平台公钥不正确');
}
$result = openssl_verify($data, base64_decode($signature), $pubkeyid);
return $result === 1;
}
}