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<?php
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class UmfService
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{
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private $pay_req_url = 'http://pay.soopay.net/spay/pay/payservice.do';
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private $charset = 'UTF-8';
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private $sign_type = 'RSA';
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private $res_format = 'HTML';
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private $version = '4.0';
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private $mer_id;
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private $platform_public_key;
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private $merchant_private_key;
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public function __construct($mer_id)
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{
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$this->mer_id = $mer_id;
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if (!file_exists(PAY_ROOT . 'cert/cert.pem')) {
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throw new Exception('请将平台公钥cert.pem放到/plugins/umfpay/cert/文件夹下');
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}
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if (!file_exists(PAY_ROOT . 'cert/key.pem')) {
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throw new Exception('请将商户私钥key.pem放到/plugins/umfpay/cert/文件夹下');
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}
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$this->platform_public_key = file_get_contents(PAY_ROOT . 'cert/cert.pem');
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$this->merchant_private_key = file_get_contents(PAY_ROOT . 'cert/key.pem');
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}
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//发起API请求
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public function submit($params){
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$public_params = [
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'charset' => $this->charset,
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'sign_type' => $this->sign_type,
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'res_format' => $this->res_format,
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'version' => $this->version,
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'amt_type' => 'RMB',
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'mer_id' => $this->mer_id,
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];
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$params = array_merge($public_params, $params);
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$params = $this->doEncrypt($params);
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$params['sign'] = $this->generateSign($params);
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$response = get_curl($this->pay_req_url, http_build_query($params));
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if(!$response){
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throw new Exception('请求接口失败');
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}
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//对账直接返回
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if($params["service"] == "download_settle_file"){
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return $response;
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}
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return $this->parseHTMLStr($response);
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}
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//获取支付跳转链接
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public function getpayurl($params){
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$public_params = [
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'charset' => $this->charset,
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'sign_type' => $this->sign_type,
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'res_format' => $this->res_format,
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'version' => $this->version,
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'amt_type' => 'RMB',
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'mer_id' => $this->mer_id,
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];
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$params = array_merge($public_params, $params);
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$params = $this->doEncrypt($params);
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$params['sign'] = $this->generateSign($params);
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$url = $this->pay_req_url . '?' . http_build_query($params);
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return $url;
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}
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private function parseHTMLStr($htmlStr){
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preg_match('/<META\s+name="MobilePayPlatform"\s+content="([\w\W]*?)"/si', $htmlStr, $matches);
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$content = $matches[1];
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if(!$content){
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throw new Exception('平台返回html解析失败');
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}
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$params = [];
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$strs = explode('&',$content);
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foreach($strs as $str){
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$arr = explode('=',$str);
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$params[$arr[0]] = $arr[1];
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}
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//if(!$this->verifySign($params)){
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// throw new Exception('平台响应数据验证签名失败');
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//}
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return $params;
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}
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public function responseUMFstr($params){
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$public_params = [
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'sign_type' => $this->sign_type,
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'version' => $this->version,
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'mer_id' => $this->mer_id,
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'ret_code' => '0000',
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'ret_msg' => 'success'
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];
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$params = array_merge($public_params, $params);
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$params['sign'] = $this->generateSign($params);
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$str = '';
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foreach($params as $key=>$value){
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$str .= $key.'='.$value.'&';
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}
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$str = substr($str,0,-1);
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return $str;
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}
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//获取待签名字符串
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private function getSignContent($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" && $k != "sign_type" && $v!=''){
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$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($param));
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}
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//验签方法
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public function verifySign($param){
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if(empty($param['sign'])) return false;
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return $this->rsaPubilcVerify($this->getSignContent($param), $param['sign']);
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}
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//敏感字段加密
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private function doEncrypt($param) {
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$chkKeys = array(
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"card_id",
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"valid_date",
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"cvv2",
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"pass_wd",
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"identity_code",
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"card_holder",
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"recv_account",
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"recv_user_name",
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"identity_holder",
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"identityCode",
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"cardHolder",
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"mer_cust_name",
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"account_name",
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"bank_account",
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"endDate",
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);
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foreach($chkKeys as $key){
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if(isset($param[$key])){
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$param[$key] = $this->rsaPubilcEncrypt($param[$key]);
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}
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}
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return $param;
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}
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//商户私钥签名
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private function rsaPrivateSign($data){
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$pkeyid = openssl_get_privatekey($this->merchant_private_key);
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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, $pkeyid);
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$signature = base64_encode($signature);
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return $signature;
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}
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//平台公钥验签
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private function rsaPubilcVerify($data, $signature){
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$pubkeyid = openssl_get_publickey($this->platform_public_key);
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if(!$pubkeyid){
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throw new Exception('验签失败，平台公钥不正确');
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}
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$result = openssl_verify($data, base64_decode($signature), $pubkeyid);
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return $result;
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}
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//平台公钥加密
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private function rsaPubilcEncrypt($data){
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$pubkeyid = openssl_get_publickey($this->platform_public_key);
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if(!$pubkeyid){
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throw new Exception('加密失败，平台公钥不正确');
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}
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openssl_public_encrypt($data, $encrypted, $pubkeyid);
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$encrypted = base64_encode($encrypted);
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return $encrypted;
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}
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//商户私钥解密
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private function rsaPrivateDecrypt($data){
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$pkeyid = openssl_get_privatekey($this->merchant_private_key);
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if(!$pkeyid){
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throw new Exception('解密失败，商户私钥不正确');
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}
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openssl_private_decrypt(base64_decode($data), $decrypted, $pkeyid);
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return $decrypted;
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}
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}
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