344 lines
10 KiB
PHP
344 lines
10 KiB
PHP
<?php
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namespace app\api\wxapi;
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use app\api\wxapi\pay\WxPayConfig;
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class AppPayWx {
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public $appid = ''; /*微信开放平台上的应用id*/
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public $mch_id = ''; /*微信申请成功之后邮件中的商户id*/
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public $api_key = ''; /*在微信商户平台上自己设定的api密钥 32位*/
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public $notify_url = ''; // 服务器异步通知页面路径(必填)
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public $out_trade_no = ''; // 商户订单号(必填，商户网站订单系统中唯一订单号)
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public $body = ''; // 商品描述(必填，不填则为商品名称)
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public $total_fee = 0; // 付款金额(必填)
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public $time_expire = ''; // 自定义超时(选填，支持dhmc)
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private $WxPayHelper;
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public function __construct(){
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$WxPayConfig = new WxPayConfig();
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$this->appid=$WxPayConfig->GetAppId();
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$this->mch_id=$WxPayConfig->GetMerchantId();
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$this->api_key=$WxPayConfig->GetKey();
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}
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public function Weixinpayandroid($total_fee, $tade_no) {
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$this->total_fee = intval ( $total_fee * 100 ); // 订单的金额 1元
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$this->out_trade_no = $tade_no; // date('YmdHis') . substr(time(), - 5) . substr(microtime(), 2, 5) . sprintf('%02d', rand(0, 99));//订单号
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$this->body = 'wx_pay_app'; // 支付描述信息
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$this->time_expire = date ( 'YmdHis', time () + 86400 ); // 订单支付的过期时间(eg:一天过期)
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$app_response = $this->doPay(); // 数据以JSON的形式返回给APP
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if (isset ( $app_response ['return_code'] ) && $app_response ['return_code'] == 'FAIL') {
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$errorCode = 100;
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$errorMsg = $app_response ['return_msg'];
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$this->echoResult ( $errorCode, $errorMsg );
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} else {
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$errorCode = 0;
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$errorMsg = 'success';
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$responseData = array (
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'notify_url' => $this->notify_url,
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'app_response' => $app_response
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);
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$this->echoResult ( $errorCode, $errorMsg, $responseData );
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}
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}
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// 接口输出
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function echoResult($errorCode = 0, $errorMsg = 'success', $responseData = array()) {
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$arr = array (
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'errorCode' => $errorCode,
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'errorMsg' => $errorMsg,
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'responseData' => $responseData
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);
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exit ( json_encode ( $arr ) ); // exit可以正常发送给APP json数据
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// return json_encode($arr); //在TP5中return这个json数据，APP接收到的是null,无法正常吊起微信支付
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}
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function getVerifySign($data, $key) {
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$String = $this->formatParameters ( $data, false );
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// 签名步骤二：在string后加入KEY
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$String = $String . "&key=" . $key;
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// 签名步骤三：MD5加密
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$String = md5 ( $String );
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// 签名步骤四：所有字符转为大写
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$result = strtoupper ( $String );
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return $result;
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}
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function formatParameters($paraMap, $urlencode) {
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$buff = "";
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ksort ( $paraMap );
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foreach ( $paraMap as $k => $v ) {
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if ($k == "sign") {
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continue;
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}
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if ($urlencode) {
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$v = urlencode ( $v );
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}
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$buff .= $k . "=" . $v . "&";
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}
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$reqPar;
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if (strlen ( $buff ) > 0) {
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$reqPar = substr ( $buff, 0, strlen ( $buff ) - 1 );
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}
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return $reqPar;
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}
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/**
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* 得到签名
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*
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* @param object $obj
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* @param string $api_key
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* @return string
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*/
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function getSign($obj, $api_key) {
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foreach ( $obj as $k => $v ) {
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$Parameters [strtolower ( $k )] = $v;
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}
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// 签名步骤一：按字典序排序参数
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ksort ( $Parameters );
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$String = $this->formatBizQueryParaMap ( $Parameters, false );
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// 签名步骤二：在string后加入KEY
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$String = $String . "&key=" . $api_key;
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// 签名步骤三：MD5加密
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$result = strtoupper ( md5 ( $String ) );
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return $result;
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}
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/**
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* 获取指定长度的随机字符串
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*
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* @param int $length
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* @return Ambigous <NULL, string>
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*/
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function getRandChar($length) {
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$str = null;
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$strPol = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz";
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$max = strlen ( $strPol ) - 1;
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for($i = 0; $i < $length; $i ++) {
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$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
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}
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return $str;
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}
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/**
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* 数组转xml
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*
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* @param array $arr
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* @return string
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*/
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function arrayToXml($arr) {
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$xml = "<xml>";
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foreach ( $arr as $key => $val ) {
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if (is_numeric ( $val )) {
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$xml .= "<" . $key . ">" . $val . "</" . $key . ">";
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} else
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$xml .= "<" . $key . "><![CDATA[" . $val . "]]></" . $key . ">";
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}
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$xml .= "</xml>";
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return $xml;
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}
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/**
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* 以post方式提交xml到对应的接口url
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*
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* @param string $xml
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* 需要post的xml数据
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* @param string $url
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* url
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* @param bool $useCert
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* 是否需要证书，默认不需要
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* @param int $second
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* url执行超时时间，默认30s
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* @throws WxPayException
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*/
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function postXmlCurl($xml, $url, $second = 30, $useCert = false, $sslcert_path = '', $sslkey_path = '') {
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$ch = curl_init ();
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// 设置超时
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curl_setopt ( $ch, CURLOPT_TIMEOUT, $second );
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curl_setopt ( $ch, CURLOPT_URL, $url );
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// 设置header
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curl_setopt ( $ch, CURLOPT_HEADER, FALSE );
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// 要求结果为字符串且输出到屏幕上
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curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, TRUE );
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curl_setopt ( $ch, CURLOPT_SSL_VERIFYPEER, FALSE );
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curl_setopt ( $ch, CURLOPT_SSL_VERIFYHOST, FALSE );
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if ($useCert == true) {
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curl_setopt ( $ch, CURLOPT_SSL_VERIFYPEER, TRUE );
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curl_setopt ( $ch, CURLOPT_SSL_VERIFYHOST, 2 ); // 严格校验
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// 设置证书
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// 使用证书：cert 与 key 分别属于两个.pem文件
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curl_setopt ( $ch, CURLOPT_SSLCERTTYPE, 'PEM' );
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curl_setopt ( $ch, CURLOPT_SSLCERT, $sslcert_path );
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curl_setopt ( $ch, CURLOPT_SSLKEYTYPE, 'PEM' );
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curl_setopt ( $ch, CURLOPT_SSLKEY, $sslkey_path );
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}
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// post提交方式
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curl_setopt ( $ch, CURLOPT_POST, TRUE );
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curl_setopt ( $ch, CURLOPT_POSTFIELDS, $xml );
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// 运行curl
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$data = curl_exec ( $ch );
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// 返回结果
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if ($data) {
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curl_close ( $ch );
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return $data;
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} else {
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$error = curl_errno ( $ch );
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curl_close ( $ch );
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return false;
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}
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}
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/**
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* 获取当前服务器的IP
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*
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* @return Ambigous <string, unknown>
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*/
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function get_client_ip() {
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if (isset ( $_SERVER ['REMOTE_ADDR'] )) {
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$cip = $_SERVER ['REMOTE_ADDR'];
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} elseif (getenv ( "REMOTE_ADDR" )) {
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$cip = getenv ( "REMOTE_ADDR" );
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} elseif (getenv ( "HTTP_CLIENT_IP" )) {
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$cip = getenv ( "HTTP_CLIENT_IP" );
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} else {
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$cip = "127.0.0.1";
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}
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return $cip;
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}
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/**
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* 将数组转成uri字符串
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*
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* @param array $paraMap
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* @param bool $urlencode
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* @return string
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*/
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function formatBizQueryParaMap($paraMap, $urlencode) {
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$buff = "";
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ksort ( $paraMap );
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foreach ( $paraMap as $k => $v ) {
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if ($urlencode) {
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$v = urlencode ( $v );
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}
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$buff .= strtolower ( $k ) . "=" . $v . "&";
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}
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$reqPar;
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if (strlen ( $buff ) > 0) {
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$reqPar = substr ( $buff, 0, strlen ( $buff ) - 1 );
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}
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return $reqPar;
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}
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/**
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* XML转数组
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*
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* @param unknown $xml
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* @return mixed
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*/
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function xmlToArray($xml) {
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// 将XML转为array
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$array_data = json_decode ( json_encode ( simplexml_load_string ( $xml, 'SimpleXMLElement', LIBXML_NOCDATA ) ), true );
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return $array_data;
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}
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public function chkParam() {
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// 用户网站订单号
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if (empty ( $this->out_trade_no )) {
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die ( 'out_trade_no error' );
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}
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// 商品描述
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if (empty ( $this->body )) {
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die ( 'body error' );
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}
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if (empty ( $this->time_expire )) {
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die ( 'time_expire error' );
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}
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// 检测支付金额
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if (empty ( $this->total_fee ) || ! is_numeric ( $this->total_fee )) {
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die ( 'total_fee error' );
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}
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// 异步通知URL
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if (empty ( $this->notify_url )) {
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die ( 'notify_url error' );
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}
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if (! preg_match ( "#^http:\/\/#i", $this->notify_url )) {
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$this->notify_url = "http://" . $_SERVER ['HTTP_HOST'] . $this->notify_url;
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}
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return true;
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}
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/**
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* 生成支付(返回给APP)
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*
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* @return boolean|mixed
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*/
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public function doPay() {
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// 检测构造参数
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$this->chkParam ();
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return $this->createAppPara ();
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}
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/**
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* APP统一下单
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*/
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private function createAppPara() {
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$url = "https://api.mch.weixin.qq.com/pay/unifiedorder";
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$data ["appid"] = $this->appid; // 微信开放平台审核通过的应用APPID
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$data ["body"] = $this->body; // 商品或支付单简要描述
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$data ["mch_id"] = $this->mch_id; // 商户号
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$data ["nonce_str"] = $this->getRandChar ( 32 ); // 随机字符串
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$data ["notify_url"] = $this->notify_url; // 通知地址
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$data ["out_trade_no"] = $this->out_trade_no; // 商户订单号
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$data ["spbill_create_ip"] = $this->get_client_ip (); // 终端IP
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$data ["total_fee"] = $this->total_fee; // 总金额
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$data ["time_expire"] = $this->time_expire; // 交易结束时间
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$data ["trade_type"] = "APP"; // 交易类型
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$data ["sign"] = $this->getSign ( $data, $this->api_key); // 签名
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$xml = $this->arrayToXml ( $data );
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$response = $this->postXmlCurl ( $xml, $url );
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// 将微信返回的结果xml转成数组
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$responseArr = $this->xmlToArray ( $response );
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if (isset ( $responseArr ["return_code"] ) && $responseArr ["return_code"] == 'SUCCESS') {
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return $this->getOrder ( $responseArr ['prepay_id'] );
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}
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return $responseArr;
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}
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/**
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* 执行第二次签名，才能返回给客户端使用
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*
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* @param int $prepayId:预支付交易会话标识
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* @return array
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*/
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public function getOrder($prepayId) {
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$data ["appid"] = $this->appid;
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$data ["noncestr"] = $this->getRandChar ( 32 );
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$data ["package"] = "Sign=WXPay";
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$data ["partnerid"] = $this->mch_id;
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$data ["prepayid"] = $prepayId;
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$data ["timestamp"] = time ();
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$data ["sign"] = $this->getSign ( $data, $this->api_key);
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$data ["packagestr"] = "Sign=WXPay";
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return $data;
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}
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/**
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* 异步通知信息验证
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*
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* @return boolean|mixed
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*/
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public function verifyNotify() {
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$xml = isset ( $GLOBALS ['HTTP_RAW_POST_DATA'] ) ? $GLOBALS ['HTTP_RAW_POST_DATA'] : '';
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if (! $xml) {
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return false;
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}
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$wx_back = $this->xmlToArray ( $xml );
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if (empty ( $wx_back )) {
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return false;
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}
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$checkSign = $this->getVerifySign ( $wx_back, $this->api_key);
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if ($checkSign = $wx_back ['sign']) {
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return $wx_back;
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} else {
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return false;
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}
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}
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}
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?>
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