using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.IO;
using System.Net;
using System.Text;
using System.Xml;
using System.Web.Security;
using System.Text.RegularExpressions;
namespace WhoLove.weixin
{
public partial class weixin : System.Web.UI.Page
{
const string Token = "nidaye1234";//你的token
#region 以下代码只用于第一次验证 验证完后请注释
//protected void Page_Load(object sender, EventArgs e)
//{
// string postStr = "";
// if (Request.HttpMethod.ToLower() == "post")
// {
// System.IO.Stream s = System.Web.HttpContext.Current.Request.InputStream;
// byte[] b = new byte[s.Length];
// s.Read(b, 0, (int)s.Length);
// postStr = System.Text.Encoding.UTF8.GetString(b);
// if (!string.IsNullOrEmpty(postStr))
// {
// Response.End();
// }
// //WriteLog("postStr:" + postStr);
// }
// else
// {
// Valid();
// }
//}
#endregion
#region 以下是正常使用时的pageload 请在验证时将其注释 并保证在正常使用时可用
/// <summary>
/// 以下是正常使用时的pageload 请在验证时将其注释 并保证在正常使用时可用
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void Page_Load(object sender, EventArgs e)
{
if (Request.HttpMethod == "POST")
{
string weixin = "";
weixin = PostInput();//获取xml数据
if (!string.IsNullOrEmpty(weixin))
{
ResponseMsg(weixin);//调用消息适配器
}
}
}
#endregion
#region 获取post请求数据
/// <summary>
/// 获取post请求数据
/// </summary>
/// <returns></returns>
private string PostInput()
{
Stream s = System.Web.HttpContext.Current.Request.InputStream;
byte[] b = new byte[s.Length];
s.Read(b, 0, (int)s.Length);
return Encoding.UTF8.GetString(b);
}
#endregion
#region 消息类型适配器
private void ResponseMsg(string weixin)// 服务器响应微信请求
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(weixin);//读取xml字符串
XmlElement root = doc.DocumentElement;
ExmlMsg xmlMsg = GetExmlMsg(root);
//XmlNode MsgType = root.SelectSingleNode("MsgType");
//string messageType = MsgType.InnerText;
string messageType = xmlMsg.MsgType;//获取收到的消息类型。文本(text)，图片(image)，语音等。
try
{
switch (messageType)
{
//当消息为文本时
case "text":
textCase(xmlMsg);
break;
case "event":
if (!string.IsNullOrEmpty(xmlMsg.EventName) && xmlMsg.EventName.Trim() == "subscribe")
{
//刚关注时的时间，用于欢迎词
int nowtime = ConvertDateTimeInt(DateTime.Now);
string msg = "你要关注我，我有什么办法。随便发点什么试试吧~~~";
string resxml = "<xml><ToUserName><![CDATA[" + xmlMsg.FromUserName + "]]></ToUserName><FromUserName><![CDATA[" + xmlMsg.ToUserName + "]]></FromUserName><CreateTime>" + nowtime + "</CreateTime><MsgType><![CDATA[text]]></MsgType><Content><![CDATA[" + msg + "]]></Content><FuncFlag>0</FuncFlag></xml>";
Response.Write(resxml);
}
break;
case "image":
break;
case "voice":
break;
case "vedio":
break;
case "location":
break;
case "link":
break;
default:
break;
}
Response.End();
}
catch (Exception)
{
}
}
#endregion
private string getText(ExmlMsg xmlMsg)
{
string con = xmlMsg.Content.Trim();
System.Text.StringBuilder retsb = new StringBuilder(200);
retsb.Append("这里放你的业务逻辑");
retsb.Append("接收到的消息："+ xmlMsg.Content);
retsb.Append("用户的OPEANID："+ xmlMsg.FromUserName);
return retsb.ToString();
}
#region 操作文本消息 + void textCase(XmlElement root)
private void textCase(ExmlMsg xmlMsg)
{
int nowtime = ConvertDateTimeInt(DateTime.Now);
string msg = "";
msg = getText(xmlMsg);
string resxml = "<xml><ToUserName><![CDATA[" + xmlMsg.FromUserName + "]]></ToUserName><FromUserName><![CDATA[" + xmlMsg.ToUserName + "]]></FromUserName><CreateTime>" + nowtime + "</CreateTime><MsgType><![CDATA[text]]></MsgType><Content><![CDATA[" + msg + "]]></Content><FuncFlag>0</FuncFlag></xml>";
Response.Write(resxml);
}
#endregion
#region 将datetime.now 转换为 int类型的秒
/// <summary>
/// datetime转换为unixtime
/// </summary>
/// <param name="time"></param>
/// <returns></returns>
private int ConvertDateTimeInt(System.DateTime time)
{
System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1));
return (int)(time - startTime).TotalSeconds;
}
private int converDateTimeInt(System.DateTime time)
{
System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1));
return (int)(time - startTime).TotalSeconds;
}
/// <summary>
/// unix时间转换为datetime
/// </summary>
/// <param name="timeStamp"></param>
/// <returns></returns>
private DateTime UnixTimeToTime(string timeStamp)
{
DateTime dtStart = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));
long lTime = long.Parse(timeStamp + "0000000");
TimeSpan toNow = new TimeSpan(lTime);
return dtStart.Add(toNow);
}
#endregion
#region 验证微信签名 保持默认即可
/// <summary>
/// 验证微信签名
/// </summary>
/// * 将token、timestamp、nonce三个参数进行字典序排序
/// * 将三个参数字符串拼接成一个字符串进行sha1加密
/// * 开发者获得加密后的字符串可与signature对比，标识该请求来源于微信。
/// <returns></returns>
private bool CheckSignature()
{
string signature = Request.QueryString["signature"].ToString();
string timestamp = Request.QueryString["timestamp"].ToString();
string nonce = Request.QueryString["nonce"].ToString();
string[] ArrTmp = { Token, timestamp, nonce };
Array.Sort(ArrTmp); //字典排序
string tmpStr = string.Join("", ArrTmp);
tmpStr = FormsAuthentication.HashPasswordForStoringInConfigFile(tmpStr, "SHA1");
tmpStr = tmpStr.ToLower();
if (tmpStr == signature)
{
return true;
}
else
{
return false;
}
}
private void Valid()
{
string echoStr = Request.QueryString["echoStr"].ToString();
if (CheckSignature())
{
if (!string.IsNullOrEmpty(echoStr))
{
Response.Write(echoStr);
Response.End();
}
}
}
#endregion
#region 写日志(用于跟踪) ＋ WriteLog(string strMemo, string path = "*****")
/// <summary>
/// 写日志(用于跟踪)
/// 如果log的路径修改,更改path的默认值
/// </summary>
private void WriteLog(string strMemo, string path = "wx.txt")
{
string filename = Server.MapPath(path);
StreamWriter sr = null;
try
{
if (!File.Exists(filename))
{
sr = File.CreateText(filename);
}
else
{
sr = File.AppendText(filename);
}
sr.WriteLine(strMemo);
}
catch
{
}
finally
{
if (sr != null)
sr.Close();
}
}
//#endregion
#endregion
#region 接收的消息实体类 以及 填充方法
private class ExmlMsg
{
/// <summary>
/// 本公众账号
/// </summary>
public string ToUserName { get; set; }
/// <summary>
/// 用户账号
/// </summary>
public string FromUserName { get; set; }
/// <summary>
/// 发送时间戳
/// </summary>
public string CreateTime { get; set; }
/// <summary>
/// 发送的文本内容
/// </summary>
public string Content { get; set; }
/// <summary>
/// 消息的类型
/// </summary>
public string MsgType { get; set; }
/// <summary>
/// 事件名称
/// </summary>
public string EventName { get; set; }
}
private ExmlMsg GetExmlMsg(XmlElement root)
{
ExmlMsg xmlMsg = new ExmlMsg() {
FromUserName = root.SelectSingleNode("FromUserName").InnerText,
ToUserName = root.SelectSingleNode("ToUserName").InnerText,
CreateTime = root.SelectSingleNode("CreateTime").InnerText,
MsgType = root.SelectSingleNode("MsgType").InnerText,
};
if (xmlMsg.MsgType.Trim().ToLower() == "text")
{
xmlMsg.Content = root.SelectSingleNode("Content").InnerText;
}
else if (xmlMsg.MsgType.Trim().ToLower() == "event")
{
xmlMsg.EventName = root.SelectSingleNode("Event").InnerText;
}
return xmlMsg;
}
#endregion
}
}
