using System;
using System.Collections.Generic;
using System.Configuration;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Web;
using System.Web.Configuration;
using System.Web.Mvc;
using System.Web.Security;
using System.Xml;
using Newtonsoft.Json;
using Travel.Business.Order;
using Travel.WeChat.ViewModel.WeiPay;
namespace Travel.WeChat.ToolClass
{
public class WeChatPayHelper
{
/// <summary>
/// 微信客户端内部提交支付申请
/// </summary>
/// <param name="orderGuid"></param>
/// <returns></returns>
[HttpGet]
public static string GoToWeCharJSPay(Guid orderGuid, string token)
{
var weCharUrl = "https://api.mch.weixin.qq.com/pay/unifiedorder";
var model = OrderInfoManager.Instance.GetById(orderGuid);
unifiedorder unOrder = new unifiedorder();
unOrder.appid = ConfigurationManager.AppSettings["wx_appid"];
unOrder.mch_id = ConfigurationManager.AppSettings["wx_mch_id"];
unOrder.nonce_str = Guid.NewGuid().ToString().Replace("-", "");
unOrder.sign = "";
unOrder.body = model.ProductName;
unOrder.out_trade_no = model.OrderCode;
//payAmountmodel.PayAmount
unOrder.total_fee = Convert.ToInt32(model.PayAmount * 100);
unOrder.spbill_create_ip = GetWebClientIp();
unOrder.notify_url = ConfigurationManager.AppSettings["wechatUrl"] + "WeChatSite/WeChatPay/ProcessingCallback";
unOrder.trade_type = "JSAPI";
unOrder.openid = token;
unOrder.device_info = "WEB";
var dc = new Dictionary<string, object>()
{
{"appid",unOrder.appid},
{"mch_id",unOrder.mch_id},
{"total_fee",unOrder.total_fee},
{"out_trade_no",unOrder.out_trade_no},
{"body",unOrder.body},
{"notify_url",unOrder.notify_url},
{"trade_type",unOrder.trade_type},
{"nonce_str",unOrder.nonce_str},
{"spbill_create_ip",unOrder.spbill_create_ip},
{"openid",unOrder.openid},
//{"scene_info","h5_info"}
};
dc.Add("sign", GetSignString(dc));//签名
//2.将参数转换为xml格式
var sb = new StringBuilder();
sb.Append("<xml>");
foreach (var d in dc)
{
sb.Append("<" + d.Key + ">" + d.Value + "</" + d.Key + ">");
}
sb.Append("</xml>");
//应用场景信息
//1.创建请求连接
var request = (HttpWebRequest)WebRequest.Create(weCharUrl);
//2.设置参数
var data = Encoding.UTF8.GetBytes(sb.ToString());
//4.设置属性
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = data.Length;
//5.将转换后的参数以文件流的形式写入到请求中
using (var stream = request.GetRequestStream())
{
stream.Write(data, 0, data.Length);
}
//6.声明变量，获取响应
var response = (HttpWebResponse)request.GetResponse();
//7.以文件流的方式读取响应结果
var responseString = new StreamReader(response.GetResponseStream()).ReadToEnd();
//
return responseString;
}
/// <summary>
/// 获取客户端ip
/// </summary>
/// <returns>返回客户端IP地址</returns>
public static string GetWebClientIp()
{
HttpRequest request = HttpContext.Current.Request;
string result = request.ServerVariables["HTTP_X_FORWARDED_FOR"];
string a = request.UserHostAddress;
if (String.IsNullOrEmpty(result))
{
result = request.ServerVariables["REMOTE_ADDR"];
}
if (String.IsNullOrEmpty(result))
{
result = request.UserHostAddress;
}
if (String.IsNullOrEmpty(result))
{
result = "0.0.0.0";
}
return result;
//string userIP = "IP";
//try
//{
// if (System.Web.HttpContext.Current == null
//|| System.Web.HttpContext.Current.Request == null
//|| System.Web.HttpContext.Current.Request.ServerVariables == null)
// return "";
// string CustomerIP = "";
// //CDN加速后取到的IP
// CustomerIP = System.Web.HttpContext.Current.Request.Headers["Cdn-Src-Ip"];
// if (!string.IsNullOrEmpty(CustomerIP))
// {
// return CustomerIP;
// }
// CustomerIP = System.Web.HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
// if (!String.IsNullOrEmpty(CustomerIP))
// return CustomerIP;
// if (System.Web.HttpContext.Current.Request.ServerVariables["HTTP_VIA"] != null)
// {
// CustomerIP = System.Web.HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
// if (CustomerIP == null)
// CustomerIP = System.Web.HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
// }
// else
// {
// CustomerIP = System.Web.HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
// }
// if (string.Compare(CustomerIP, "unknown", true) == 0)
// return System.Web.HttpContext.Current.Request.UserHostAddress;
// return CustomerIP;
//}
//catch { }
//return userIP;
string user_IP;
if (HttpContext.Current.Request.ServerVariables["HTTP_VIA"] != null)
{
user_IP = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString();
}
else
{
user_IP = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"].ToString();
}
return user_IP;
}
/// <summary>
/// 获取Sign签名
/// </summary>
/// <param name="dic">键值对集合</param>
/// <returns>字符串类型的签名</returns>
public static string GetSignString(Dictionary<string, object> dic)
{
string key = WebConfigurationManager.AppSettings["wx_key"].ToString(); ;//商户平台 API安全里面设置的KEY 32位长度
//排序
dic = dic.OrderBy(d => d.Key).ToDictionary(d => d.Key, d => d.Value);
//连接字段
var sign = dic.Aggregate("", (current, d) => current + (d.Key + "=" + d.Value + "&"));
sign += "key=" + key;
//MD5
sign = FormsAuthentication.HashPasswordForStoringInConfigFile(sign, "MD5").ToUpper();
return sign;
}
/// <summary>
/// 时间格式化
/// </summary>
/// <param name="date"></param>
/// <returns></returns>
public static string Format(DateTime date)
{
var dates = "";
dates += date.Year;
dates += date.Month;
dates += date.Date;
dates += date.Hour;
dates += date.Minute;
dates += date.Second;
return dates;
}
/// <summary>
/// 获取时间戳
/// </summary>
/// <returns></returns>
public static string GetTimeStamp()
{
TimeSpan ts = DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0);
return Convert.ToInt64(ts.TotalSeconds).ToString();
}
#region 微信H5支付，外部浏览器调起支付
/// <summary>
/// 根据订单编号,提交订单到微信,获取跳转的地址
/// </summary>
/// <param name="OrderGuid">订单编号</param>
/// <returns>要跳转的地址</returns>
[HttpPost]
public static string PostToWeChar(Guid OrderGuid)
{
var model = OrderInfoManager.Instance.GetById(OrderGuid);
var weCharUrl = "https://api.mch.weixin.qq.com/pay/unifiedorder";
var si = new h5_info();
si.type = "Wap";
si.wap_url = ConfigurationManager.AppSettings["wechatUrl"];
si.wap_name = "驿马旅行";
var uo = new unifiedorder();
uo.appid = ConfigurationManager.AppSettings["wx_appid"];
uo.mch_id = ConfigurationManager.AppSettings["wx_mch_id"];
uo.total_fee = Convert.ToInt32(model.PayAmount) * 100;//单位元转换为分
uo.out_trade_no = model.OrderCode;
uo.body = model.ProductName;
uo.notify_url = ConfigurationManager.AppSettings["wechatUrl"] + "WeChatSite/Share/Pay";
uo.trade_type = "MWEB";//h5的支付类型
uo.nonce_str = Guid.NewGuid().ToString().Replace("-", ""); ;//随机字符串
uo.spbill_create_ip = GetWebClientIp();
var siJson = JsonConvert.SerializeObject(si);
var dc = new Dictionary<string, object>()
{
{"appid",uo.appid},
{"mch_id",uo.mch_id},
{"total_fee",uo.total_fee},
{"out_trade_no",uo.out_trade_no},
{"body",uo.body},
{"notify_url",uo.notify_url},
{"trade_type",uo.trade_type},
{"nonce_str",uo.nonce_str},
{"spbill_create_ip",uo.spbill_create_ip},
//{"scene_info","h5_info"}
};
dc.Add("sign", GetSignString(dc));//签名
var sb = new StringBuilder();
sb.Append("<xml>");
foreach (var d in dc)
{
if (d.Key == "scene_info")
{
sb.Append("<" + d.Key + ">{\"h5_info\":");
sb.Append(siJson);
sb.Append("}</" + d.Key + ">");
}
else
{
sb.Append("<" + d.Key + ">" + d.Value + "</" + d.Key + ">");
}
}
sb.Append("</xml>");
//1.创建请求连接
var request = (HttpWebRequest)WebRequest.Create(weCharUrl);
//2.设置参数
//var postData = "thing1=hello";
//postData += "&thing2=world";
//3.将参数转换编码格式
var data = Encoding.UTF8.GetBytes(sb.ToString());
//4.设置属性
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = data.Length;
//5.将转换后的参数以文件流的形式写入到请求中
using (var stream = request.GetRequestStream())
{
stream.Write(data, 0, data.Length);
}
//6.声明变量，获取响应
var response = (HttpWebResponse)request.GetResponse();
//7.以文件流的方式读取响应结果
var responseString = new StreamReader(response.GetResponseStream()).ReadToEnd();
var codeId = new XmlDocument();
codeId.LoadXml(responseString);
//8.读取xml节点的值
XmlNode xn = codeId.SelectSingleNode("xml/mweb_url");
var mweb_url = xn.InnerText;
//9.返回要跳转的url
return mweb_url;
}
#endregion
}
}
