<?php
/**
 * ECSHOP微信新版JSAPI支付插件
 */
if (!defined('IN_ECTOUCH')) {
    die('Hacking attempt');
}
$payment_lang = ROOT_PATH . 'lang/' .$GLOBALS['_CFG']['lang']. '/payment/wx_new_jspay.php';
if (file_exists($payment_lang))
{
    global $_LANG;

    include_once($payment_lang);
}

/* 模块的基本信息 */
if (isset($set_modules) && $set_modules == TRUE)
{
    $i = isset($modules) ? count($modules) : 0;

    /* 代码 */
    $modules[$i]['code']    = basename(__FILE__, '.php');

    /* 描述对应的语言项 */
    $modules[$i]['desc']    = 'wx_new_jspay_desc';

    /* 是否支持货到付款 */
    $modules[$i]['is_cod']  = '0';

    /* 是否支持在线支付 */
    $modules[$i]['is_online']  = '1';

    /* 作者 */
    $modules[$i]['author']  = 'ECSHOP教程网';

    /* 网址 */
    $modules[$i]['website'] = 'http://www.ecshopjcw.com';

    /* 版本号 */
    $modules[$i]['version'] = '1.0.0';

    /* 配置信息 */
    $modules[$i]['config']  = array(
        array('name' => 'appid',           'type' => 'text',   'value' => ''),
        array('name' => 'appsecret',           'type' => 'text',   'value' => ''),
        array('name' => 'mchid',               'type' => 'text',   'value' => ''),
        array('name' => 'key',           'type' => 'text',   'value' => ''),
        array('name' => 'logs',           'type' => 'text',   'value' => ''),
    );

    return;
}


class wx_new_jspay
{
    function __construct()
    {
        $payment = get_payment('wx_new_jspay');
    
        if(!defined('WXAPPID'))
        {
            $root_url = str_replace('mobile/', '', $GLOBALS['ecs']->url());
            define("WXAPPID", $payment['appid']);
            define("WXMCHID", $payment['mchid']);
            define("WXKEY", $payment['key']);
            define("WXAPPSECRET", $payment['appsecret']);
            define("WXCURL_TIMEOUT", 30);
            define('WXNOTIFY_URL',$GLOBALS['ecs']->url().'wx_native_callback.php');
            define('WXSSLCERT_PATH',dirname(__FILE__).'/WxPayPubHelper/cacert/apiclient_cert.pem');
            define('WXSSLKEY_PATH',dirname(__FILE__).'/WxPayPubHelper/cacert/apiclient_key.pem');
        }
        require_once(dirname(__FILE__)."/WxPayPubHelper/WxPayPubHelper.php");

    }


    function get_code($order, $payment)
    {
        
        $jsApi = new JsApi_pub();

       
        if (!isset($_GET['code']))
        {
            $redirect = urlencode($GLOBALS['ecs']->url().'flow.php?step=ok&order_id='.$order['order_sn']);
            $pay_url = $jsApi->createOauthUrlForCode($redirect);
			$files=$_SERVER['PHP_SELF'];
			if(!strstr($files, 'user.php')){
			ecs_header("Location: $pay_url\n");
			}
        }else
        {
            $code = $_GET['code'];
            $jsApi->setCode($code);
            $openid = $jsApi->getOpenId();
        }
        
        if($openid)
        {
            $unifiedOrder = new UnifiedOrder_pub();

            $unifiedOrder->setParameter("openid","$openid");//商品描述
            $unifiedOrder->setParameter("body",$order['order_sn']);//商品描述
            $out_trade_no = $order['order_sn'].mt_rand(1,20);
            $unifiedOrder->setParameter("out_trade_no","$out_trade_no");//商户订单号 
            $unifiedOrder->setParameter("attach",strval($order['log_id']));//商户支付日志
            $unifiedOrder->setParameter("total_fee",strval(intval($order['order_amount']*100)));//总金额
            $unifiedOrder->setParameter("notify_url",WXNOTIFY_URL);//通知地址 
            $unifiedOrder->setParameter("trade_type","JSAPI");//交易类型


            $prepay_id = $unifiedOrder->getPrepayId();

            $jsApi->setPrepayId($prepay_id);

            $jsApiParameters = $jsApi->getParameters();


            $user_agent = $_SERVER['HTTP_USER_AGENT'];
            $allow_use_wxPay = true;

            if(strpos($user_agent, 'MicroMessenger') === false)
            {
                $allow_use_wxPay = false;
            }
            else
            {
                preg_match('/.*?(MicroMessenger\/([0-9.]+))\s*/', $user_agent, $matches);
                if($matches[2] < 5.0)
                {
                    $allow_use_wxPay = false;
                }
            }
            $html .= '<script language="javascript">';
            if($allow_use_wxPay)
            {
                $html .= "function jsApiCall(){";
                $html .= "WeixinJSBridge.invoke(";
                $html .= "'getBrandWCPayRequest',";
                $html .= $jsApiParameters.",";
                $html .= "function(res){";
                $html .= "if(res.err_msg == 'get_brand_wcpay_request:ok'){window.location.href='".$GLOBALS['ecs']->url()."respond.php'}";
                //$html .= "WeixinJSBridge.log(res.err_msg);";
                $html .= "}";
                $html .= ");";
                $html .= "}";
                $html .= "function callpay(){";
                $html .= 'if (typeof WeixinJSBridge == "undefined"){';
                $html .= "if( document.addEventListener ){";
                $html .= "document.addEventListener('WeixinJSBridgeReady', jsApiCall, false);";
                $html .= "}else if (document.attachEvent){";
                $html .= "document.attachEvent('WeixinJSBridgeReady', jsApiCall); ";
                $html .= "document.attachEvent('onWeixinJSBridgeReady', jsApiCall);";
                $html .= "}";
                $html .= "}else{";
                $html .= "jsApiCall();";
                $html .= "}}";
            }
            else
            {
                $html .= 'function callpay(){';
                $html .= 'alert("您的微信不支持支付功能,请更新您的微信版本")';
                $html .= "}";

            }

            $html .= '</script>';
			$html .= '<div style="text-align:center"><input type="button" onclick="callpay()" value="微信支付" class="c-btn6" /></div>';

            return $html;

        }
        else
        {
            $html .= '<script language="javascript">';
            $html .= 'function callpay(){';
            $html .= 'alert("请在微信中使用微信支付");';
            $html .= 'exit();';
            $html .= "}";
            $html .= '</script>';
			$is_wechat=is_wechat_browser();
			if($is_wechat==false){
			$html .= '<div style="text-align:center"><input type="button" onclick="callpay();"  value="微信支付" class="c-btn4" /></div>';
			}else{
			$html .= '<div style="text-align:center"><input type="button" onclick="window.location.href=\''.$pay_url.'\'"  value="微信支付" class="c-btn4" /></div>';
			}

            return $html;
        }

        
    }

    function respond()
    {
        $payment  = get_payment('wx_new_jspay');

        $notify = new Notify_pub();
        $xml = $GLOBALS['HTTP_RAW_POST_DATA'];
        $notify->saveData($xml);
        if($payment['logs'])
        {
            $this->log(ROOT_PATH.'/data/wx_new_log.txt',"传递过来的XML\r\n".var_export($xml,true));
        }
        if($notify->checkSign() == TRUE)
        {
            if ($notify->data["return_code"] == "FAIL") {
                //此处应该更新一下订单状态，商户自行增删操作
                if($payment['logs']){
                    $this->log(ROOT_PATH.'/data/wx_new_log.txt',"return_code失败\r\n");
                }
            }
            elseif($notify->data["result_code"] == "FAIL"){
                //此处应该更新一下订单状态，商户自行增删操作
                if($payment['logs']){
                    $this->log(ROOT_PATH.'/data/wx_new_log.txt',"result_code失败\r\n");
                }
            }
            else{
                //此处应该更新一下订单状态，商户自行增删操作
                if($payment['logs']){
                    $this->log(ROOT_PATH.'/data/wx_new_log.txt',"支付成功\r\n");
                }
                $total_fee = $notify->data["total_fee"];
                $log_id = $notify->data["attach"];
                $sql = 'SELECT order_amount FROM ' . $GLOBALS['ecs']->table('pay_log') ." WHERE log_id = '$log_id'";
                $amount = $GLOBALS['db']->getOne($sql);
                
                if($payment['logs'])
                {
                    $this->log(ROOT_PATH.'/data/wx_new_log.txt','订单金额'.$amount."\r\n");
                }
                
                if(intval($amount*100) != $total_fee)
                {
                    
                    if($payment['logs'])
                    {   
                        $this->log(ROOT_PATH.'/data/wx_new_log.txt','订单金额不符'."\r\n");
                    }
                    
                    echo 'fail';
                    return;
                }
                order_paid($log_id, 2);
                return true;
            }

        }
        else
        {
            $this->log(ROOT_PATH.'/data/wx_new_log.txt',"签名失败\r\n");
        }
        return false;
       
    }
    
    function log($file,$txt)
    {
       $fp =  fopen($file,'ab+');
       fwrite($fp,'-----------'.local_date('Y-m-d H:i:s').'-----------------');
       fwrite($fp,$txt);
       fwrite($fp,"\r\n\r\n\r\n");
       fclose($fp);
    }
    
}
?>