*/
class WxPay {
/**
* 初始化参数
*
* @param array $options
* @param $options ['app_id'] APPID：绑定支付的APPID（必须配置，开户邮件中可查看）
* @param $options ['mch_id'] MCHID：商户号（必须配置，开户邮件中可查看）
* @param $options ['key'] KEY：商户支付密钥，参考开户邮件设置（必须配置，登录商户平台自行设置）
* @param $options ['appsecret'] 公众帐号secert（仅JSAPI支付的时候需要配置)，
* @param $options ['notify_url'] 支付宝回调地址
*/
public function __construct($options = array()) {
$this->config = !empty($options) ? $options : config('wxchatpay');
}
/**
* 微信支付App
* @param string $data 业务参数 body out_trade_no total_fee
* @param string $data ['out_trade_no'] 订单号 必填
* @param string $data ['total_fee'] 订单金额 必填
* @param string $data ['body'] 订单详情 必填
* @return $response 返回app所需字符串
*/
public function WxPayApp($d) {
$wxConfig = $this->config;
$out_trade_no = $d['out_trade_no'];
$total_fee = abs(floatval($d['total_fee'])) * 100;// 微信支付 单位为分
$nonce_str = $this->getRandChar(32);
$ip = $this->get_client_ip();
if ($ip == '::1')
$ip = '1.1.1.1';
$data ["appid"] = $wxConfig["app_id"];
$data ["body"] = $d['body'];
$data ["mch_id"] = $wxConfig['mch_id'];
$data ["nonce_str"] = $nonce_str;
$data ["notify_url"] = $wxConfig["notify_url"];
$data ["out_trade_no"] = $out_trade_no;
$data ["spbill_create_ip"] = $ip;
$data ["total_fee"] = $total_fee;
$data ["trade_type"] = "APP";
$data['time_expire'] = date('YmdHis', time() + 120);
$s = $this->getSign($data);
$data ["sign"] = $s;
$xml = $this->arrayToXml($data);
$url = 'https://api.mch.weixin.qq.com/pay/unifiedorder';
$response = $this->postXmlCurl($xml, $url);
$re = $this->xmlstr_to_array($response);
if ($re ['return_code'] == 'FAIL') {
return $re['return_msg'];
}
// 二次签名
$reapp = $this->getOrder($re['prepay_id']);
return $reapp;
}
public function WxPayJs($d) {
$wxConfig = $this->config;
$out_trade_no = $d['out_trade_no'];
$total_fee = abs(floatval($d['total_fee'])) * 100;// 微信支付 单位为分
// $total_fee = 1;// 微信支付 单位为分
$nonce_str = $this->getRandChar(32);
$ip = $this->get_client_ip();
if ($ip == '::1')
$ip = '1.1.1.1';
$trade_type = 'JSAPI';
$post = [
'appid' =>$wxConfig["app_id"] ,
'body' =>$d['body'],
'mch_id' =>$wxConfig['mch_id'],
'nonce_str' =>$nonce_str,
'notify_url' =>$wxConfig["notify_url"],
'openid' =>$d['openid'],
'out_trade_no' =>$out_trade_no,
'spbill_create_ip' =>$ip,
'time_expire' => date('YmdHis', time() + 120),
'total_fee' => $total_fee,
'trade_type' =>$trade_type,
];
$sign = $this->sign($post);
$post_xml = '
'.$wxConfig["app_id"].'
'.$d['body'].'
'.$wxConfig['mch_id'].'
'.$nonce_str.'
'.$wxConfig["notify_url"].'
'.$d['openid'].'
'.$out_trade_no.'
'.$ip.'
'.$post["time_expire"].'
'.$post["total_fee"].'
'.$trade_type.'
'.$sign.'
';
$url = 'https://api.mch.weixin.qq.com/pay/unifiedorder';
$xml = httpRequest($url,'POST',$post_xml);
$array = $this->xml($xml);//全要大写1
if($array['RETURN_CODE'] == 'SUCCESS' && $array['RESULT_CODE'] == 'SUCCESS')
{
$time = (string)time();
$tmp = [];
$tmp['appId'] = $wxConfig["app_id"];
$tmp['nonceStr'] = $nonce_str;
$tmp['package'] = 'prepay_id='.$array['PREPAY_ID'];
$tmp['signType'] = 'MD5';
$tmp['timeStamp'] = $time;
//return ajaxReturn(callback(1,'签名成功',$tmp));
$data['state'] = 200;
$data['appid'] = $wxConfig["app_id"];
$data['timeStamp'] = $time;
$data['nonceStr'] = $nonce_str;
$data['signType'] = 'MD5';
$data['package'] = 'prepay_id='.$array['PREPAY_ID']; //同意下单接口返回的值 prepay_id
$data['paySign'] = $this->sign($tmp);
$data['out_trade_no'] = $out_trade_no;
}
else
{
$data['state'] = 0;
$data['text'] = 'error';
$data['RETURN_CODE'] = $array['RETURN_CODE'];
$data['RESULT_CODE'] = $array['RESULT_CODE'];
}
return $data;
}
/**
* 微信App支付退款申请
* @param array $d 业务参数 body out_trade_no total_fee
* @param string $data ['out_trade_no'] 订单号 必填
* @param string $data ['total_fee'] 订单金额 必填
* @return $response 返回app所需字符串
*/
public function WxPayRefund($d) {
$wxConfig = $this->config;
// $out_trade_no = $d['out_trade_no'];
// $transaction_id = $d['trade_no'];
// $total_fee = $d['total_amount'];// 微信支付 单位为分
// $refund_reason = $d['refund_reason'];
$nonce_str = $this->getRandChar(32);
$data ["appid"] = $wxConfig["app_id"];
$data ["mch_id"] = $wxConfig['mch_id'];
$data ["nonce_str"] = $nonce_str;
if ($wxConfig["refund_notify"]) {
$data ["notify_url"] = $wxConfig["refund_notify"];
}
// $data ["out_trade_no"] = $out_trade_no;
$data ["transaction_id"] = $d['transaction_id'];
$data ["out_refund_no"] = $d['out_refund_no'];
$data ["total_fee"] = $d['total_fee']; //1 微信总金额 单位为分
$data ["refund_fee"] = $d['refund_fee']; //1 微信退款金额 单位为分
$data ['refund_desc'] = $d['refund_desc'];
$s = $this->getSign($data);
$data ["sign"] = $s;
$xml = $this->arrayToXml($data);
$url = 'https://api.mch.weixin.qq.com/secapi/pay/refund';
$response = $this->postXmlCurl($xml, $url);
$re = $this->xmlstr_to_array($response);
if ($re ['return_code'] == 'FAIL') {
return $re['return_msg'];
}
return $re;
}
/**
* 微信退款通知
* @return array 验证正确返回状态及订单数据
*/
public function WxPayRefundNotifyCheck() {
$postStr = $GLOBALS['HTTP_RAW_POST_DATA'];
if (!$postStr) {
$postStr = file_get_contents("php://input");
}
$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
if ($postObj === false) {
error_log('parse xml error', 3, './wechat_errorlog.txt');
}
if ($postObj->return_code != 'SUCCESS') {
error_log($postObj->return_msg, 3, './wechat_errorlog.txt');
}
$arr = (array)$postObj;
file_put_contents('wx_refund_error_logs.txt', date('Y-m-d H:i:s').'退款数据1！'.json_encode($arr), FILE_APPEND);
if($arr['return_code'] == 'SUCCESS') {
$wxConfig = $this->config;
//解密信息
require_once("Plugins/WxPay/OpenSSLAES.php");
$aes = new \OpenSSLAES(md5($wxConfig['key']));
$decrypted = $aes->decrypt($arr['req_info']);
$reqObj = simplexml_load_string($decrypted, 'SimpleXMLElement', LIBXML_NOCDATA);
$arr['req_info'] = (array)$reqObj;
file_put_contents('wx_refund_error_logs.txt', date('Y-m-d H:i:s').'退款数据2！'.json_encode($arr), FILE_APPEND);
return array('status' => true, 'data' => $arr);
}
return array('status' => false);
}
/**
* 微信签名验证
* @param string $data 业务参数
* @return array
*/
public function WxPayNotifyCheck() {
// $postStr = $GLOBALS['HTTP_RAW_POST_DATA'];
// if(!$postStr){
$postStr = file_get_contents("php://input");
// }
$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
if ($postObj === false) {
error_log('parse xml error', 3, './wechat_errorlog.txt');
}
if ($postObj->return_code != 'SUCCESS') {
error_log($postObj->return_msg, 3, './wechat_errorlog.txt');
}
$arr = (array)$postObj;
unset($arr['sign']);
if ($this->getSign($arr) == $postObj->sign) {
return array('status' => true, 'data' => $arr);
} else
return array('status' => false);
}
/**
* 以下为微信所需相关方法，请勿修改
*/
// 执行第二次签名，才能返回给客户端使用
public function getOrder($prepayId) {
$data ["appid"] = $this->config ["app_id"];
$data ["noncestr"] = $this->getRandChar(32);;
$data ["package"] = "Sign=WXPay";
$data ["partnerid"] = $this->config ['mch_id'];
$data ["prepayid"] = $prepayId;
$data ["timestamp"] = time();
$s = $this->getSign($data);
$data ["sign"] = $s;
return $data;
}
//生成签名
function getSign($Obj) {
foreach ($Obj as $k => $v) {
$Parameters [strtolower($k)] = $v;
}
// 签名步骤一：按字典序排序参数
ksort($Parameters);
$String = $this->formatBizQueryParaMap($Parameters, false);
// echo "【string】 =".$String."";
// 签名步骤二：在string后加入KEY
$String = $String . "&key=" . $this->config ['key'];
// echo "
";
// 签名步骤三：MD5加密
$result_ = strtoupper(md5($String));
return $result_;
}
// 获取指定长度的随机字符串
function getRandChar($length) {
$str = null;
$strPol = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz";
$max = strlen($strPol) - 1;
for ($i = 0; $i < $length; $i++) {
$str .= $strPol [rand(0, $max)]; // rand($min,$max)生成介于min和max两个数之间的一个随机整数
}
return $str;
}
// 数组转xml
function arrayToXml($arr) {
$xml = "";
foreach ($arr as $key => $val) {
if (is_numeric($val)) {
$xml .= "<" . $key . ">" . $val . "";
} else
$xml .= "<" . $key . ">";
}
$xml .= "";
return $xml;
}
// post https请求，CURLOPT_POSTFIELDS xml格式
function postXmlCurl($xml, $url, $second = 30) {
// 初始化curl
$ch = curl_init();
// 超时时间
curl_setopt($ch, CURLOPT_TIMEOUT, $second);
// 这里设置代理，如果有的话
// curl_setopt($ch,CURLOPT_PROXY, '8.8.8.8');
// curl_setopt($ch,CURLOPT_PROXYPORT, 8080);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
// 设置header
curl_setopt($ch, CURLOPT_HEADER, FALSE);
// 要求结果为字符串且输出到屏幕上
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
// post提交方式
curl_setopt($ch, CURLOPT_POST, TRUE);
curl_setopt($ch, CURLOPT_POSTFIELDS, $xml);
// 证书
curl_setopt($ch, CURLOPT_SSLKEY, dirname(__FILE__) . '/cert/apiclient_key.pem');
curl_setopt($ch, CURLOPT_SSLCERT, dirname(__FILE__) . '/cert/apiclient_cert.pem');
// 运行curl
$data = curl_exec($ch);
// 返回结果
if ($data) {
curl_close($ch);
return $data;
} else {
$error = curl_errno($ch);
echo "curl出错，错误码:$error" . "
";
echo "错误原因查询";
curl_close($ch);
return false;
}
}
//获取当前服务器的IP
function get_client_ip() {
if ($_SERVER ['REMOTE_ADDR']) {
$cip = $_SERVER ['REMOTE_ADDR'];
} elseif (getenv("REMOTE_ADDR")) {
$cip = getenv("REMOTE_ADDR");
} elseif (getenv("HTTP_CLIENT_IP")) {
$cip = getenv("HTTP_CLIENT_IP");
} else {
$cip = "unknown";
}
return $cip;
}
// 将数组转成uri字符串
function formatBizQueryParaMap($paraMap, $urlencode) {
$buff = "";
ksort($paraMap);
foreach ($paraMap as $k => $v) {
if ($urlencode) {
$v = urlencode($v);
}
$buff .= strtolower($k) . "=" . $v . "&";
}
if (strlen($buff) > 0) {
$reqPar = substr($buff, 0, strlen($buff) - 1);
}
return $reqPar;
}
//xml转成数组
function xmlstr_to_array($xmlstr) {
$doc = new \DOMDocument ();
$doc->loadXML($xmlstr);
return $this->domnode_to_array($doc->documentElement);
}
//dom转成数组
function domnode_to_array($node) {
$output = array();
switch ($node->nodeType) {
case XML_CDATA_SECTION_NODE :
case XML_TEXT_NODE :
$output = trim($node->textContent);
break;
case XML_ELEMENT_NODE :
for ($i = 0, $m = $node->childNodes->length; $i < $m; $i++) {
$child = $node->childNodes->item($i);
$v = $this->domnode_to_array($child);
if (isset ($child->tagName)) {
$t = $child->tagName;
if (!isset ($output [$t])) {
$output [$t] = array();
}
$output [$t] [] = $v;
} elseif ($v) {
$output = ( string )$v;
}
}
if (is_array($output)) {
if ($node->attributes->length) {
$a = array();
foreach ($node->attributes as $attrName => $attrNode) {
$a [$attrName] = ( string )$attrNode->value;
}
$output ['@attributes'] = $a;
}
foreach ($output as $t => $v) {
if (is_array($v) && count($v) == 1 && $t != '@attributes') {
$output [$t] = $v [0];
}
}
}
break;
}
return $output;
}
//签名排序
private function sign($data)
{
$stringA = '';
foreach ($data as $key => $value) {
if(!$value) continue;
if($stringA) $stringA .= '&'.$key."=".$value;
else $stringA = $key."=".$value;
}
$wx_key = $this->config['key'];
$stringSignTemp = $stringA.'&key='.$wx_key;
return strtoupper(md5($stringSignTemp));
}
//xml转换
private function xml($xml)
{
$p = xml_parser_create();
xml_parse_into_struct($p ,$xml ,$vals , $index);
xml_parser_free($p);
$data = [];
foreach ($index as $key => $value) {
if($key =='xml' || $key=='XML') continue;
$tag = $vals[$value[0]]['tag'];
$value = $vals[$value[0]]['value'];
$data[$tag] = $value;
}
return $data;
}
}