149 lines
4.2 KiB
PHP
149 lines
4.2 KiB
PHP
<?php
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/**
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* https://fundwx.fuiou.com/doc/#/
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*/
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class PayService
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{
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private $version = '1.0';
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private $ins_cd;
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private $mchnt_cd;
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private $platform_public_key;
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private $merchant_private_key;
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private $xml;
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private $gateway_url = 'https://spay-mc.fuioupay.com';
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public function __construct($ins_cd, $mchnt_cd, $platform_public_key, $merchant_private_key, $is_test = false)
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{
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$this->ins_cd = $ins_cd;
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$this->mchnt_cd = $mchnt_cd;
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$this->platform_public_key = $platform_public_key;
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$this->merchant_private_key = $merchant_private_key;
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if($is_test){
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$this->gateway_url = 'https://fundwx.fuiou.com';
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}
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$this->xml = new XmlWriter();
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}
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//发起API请求
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public function submit($path, $params){
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$requrl = $this->gateway_url.$path;
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$public_params = [
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'version' => $this->version,
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'ins_cd' => $this->ins_cd,
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'mchnt_cd' => $this->mchnt_cd,
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'term_id' => '88888888',
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'random_str' => getSid(),
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];
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foreach($params as $key=>$value){
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if($value) $params[$key] = mb_convert_encoding($params[$key], 'GBK', 'UTF-8');
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}
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$params = array_merge($public_params, $params);
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$params['sign'] = $this->generateSign($params);
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$xml = "<?xml version=\"1.0\" encoding=\"GBK\" standalone=\"yes\"?><xml>".$this->toXml($params)."</xml>";
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$response = get_curl($requrl, 'req='.urlencode(urlencode($xml)));
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$response = urldecode($response);
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LIBXML_VERSION < 20900 && libxml_disable_entity_loader(true);
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$result = json_decode(json_encode(simplexml_load_string($response)), true);
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if(isset($result['result_code']) && $result['result_code']=='000000'){
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if(!$this->verifyResponse($result)){
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throw new Exception('返回数据验签失败');
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}
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return $result;
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}elseif(isset($result['result_msg'])){
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throw new Exception($result['result_msg']);
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}else{
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throw new Exception('返回数据解析失败');
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}
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}
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//获取待签名字符串
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private function getSignContent($param){
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ksort($param);
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$signstr = '';
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foreach($param as $k => $v){
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if($k != "sign" && substr($k,0,8)!='reserved'){
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if(is_array($v))$v = '';
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$signstr .= $k.'='.$v.'&';
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}
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}
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$signstr = substr($signstr,0,-1);
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return $signstr;
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}
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//请求参数签名
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private function generateSign($param){
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return $this->rsaPrivateSign($this->getSignContent($param));
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}
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//返回数据验签
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private function verifyResponse($param){
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if(empty($param['sign'])) return false;
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foreach($param as $key=>$value){
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if(is_array($value)) $param[$key] = '';
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else $param[$key] = mb_convert_encoding($param[$key], 'GBK', 'UTF-8');
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}
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return $this->verifySign($param);
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}
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//验签方法
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public function verifySign($param){
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if(empty($param['sign'])) return false;
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return $this->rsaPubilcSign($this->getSignContent($param), $param['sign']);
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}
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//商户私钥签名
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private function rsaPrivateSign($data){
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$priKey = str_replace(array("\r\n", "\r", "\n"), "", $this->merchant_private_key);
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$res = "-----BEGIN RSA PRIVATE KEY-----\n" .
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wordwrap($priKey, 64, "\n", true) .
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"\n-----END RSA PRIVATE KEY-----";
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$pkeyid = openssl_pkey_get_private($res);
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if(!$pkeyid){
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throw new Exception('签名失败，商户私钥不正确');
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}
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openssl_sign($data, $signature, $pkeyid, OPENSSL_ALGO_MD5);
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$signature = base64_encode($signature);
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return $signature;
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}
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//平台公钥验签
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private function rsaPubilcSign($data, $signature){
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$pubKey = str_replace(array("\r\n", "\r", "\n"), "", $this->platform_public_key);
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$res = "-----BEGIN PUBLIC KEY-----\n" .
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wordwrap($pubKey, 64, "\n", true) .
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"\n-----END PUBLIC KEY-----";
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$pubkeyid = openssl_pkey_get_public($res);
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if(!$pubkeyid){
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throw new Exception('验签失败，富友公钥不正确');
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}
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$result = openssl_verify($data, base64_decode($signature), $pubkeyid, OPENSSL_ALGO_MD5);
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return $result;
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}
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private function toXml($data, $eIsArray=FALSE) {
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if(!$eIsArray) {
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$this->xml->openMemory();
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}
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foreach($data as $key => $value){
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if(is_array($value)){
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$this->xml->startElement($key);
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$this->toXml($value, TRUE);
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$this->xml->endElement();
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continue;
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}
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$this->xml->writeElement($key, $value);
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}
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if(!$eIsArray) {
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$this->xml->endElement();
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return $this->xml->outputMemory(true);
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}
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}
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} |