|
最近研究微信公眾平臺(tái)，這里整理了一下向特定用戶推送消息的思路 一、首先需要將微信的openid與系統(tǒng)用戶綁定。 在用戶關(guān)注公眾平臺(tái)的時(shí)候，回復(fù)一個(gè)鏈接，要求用戶綁定，可以設(shè)計(jì)如下消息進(jìn)行回復(fù)，（openid最好進(jìn)行加密處理，后者還需要用這個(gè)字段綁定fakeid）。 歡迎關(guān)注有問必答平臺(tái),<a href='http://myweixin123./bind.html?openid=@openid'>點(diǎn)擊此處進(jìn)行用戶綁定</a>! 在bind.html頁(yè)面將openid與系統(tǒng)的usercode進(jìn)行綁定，這個(gè)綁定過程非常簡(jiǎn)單，這里不詳敘述。 二、將openid與fakeid進(jìn)行綁定 微信公眾平臺(tái)是一回一答的模式；但是在微信公眾平臺(tái)后臺(tái)，可以向特定用戶進(jìn)行消息發(fā)送。我們利用這個(gè)機(jī)制使用代碼去模擬這個(gè)過程來實(shí)現(xiàn)消息推送。 首先需要模擬登錄： using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Security.Cryptography;
using System.Text;
using System.Net;
using System.IO;
using System.Security.Authentication;
using System.Security.Cryptography.X509Certificates;
/// <summary>
///WeiXinLogin 的摘要說明
/// </summary>
public class WeiXinLogin
{
/// <summary>
/// MD5 32位加密
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
static string GetMd5Str32(string str)
{
MD5CryptoServiceProvider md5Hasher = new MD5CryptoServiceProvider();
// Convert the input string to a byte array and compute the hash.
char[] temp = str.ToCharArray();
byte[] buf = new byte[temp.Length];
for (int i = 0; i < temp.Length; i++)
{
buf[i] = (byte)temp[i];
}
byte[] data = md5Hasher.ComputeHash(buf);
// Create a new Stringbuilder to collect the bytes
// and create a string.
StringBuilder sBuilder = new StringBuilder();
// Loop through each byte of the hashed data
// and format each one as a hexadecimal string.
for (int i = 0; i < data.Length; i++)
{
sBuilder.Append(data[i].ToString("x2"));
}
// Return the hexadecimal string.
return sBuilder.ToString();
}
public static bool ExecLogin(string name,string pass)
{
bool result = false;
string password = GetMd5Str32(pass).ToUpper();
string padata = "username=" + name + "&pwd=" + password + "&imgcode=&f=json";
string url = "https://mp.weixin.qq.com/cgi-bin/login?lang=zh_CN ";//請(qǐng)求登錄的URL
try
{
CookieContainer cc = new CookieContainer();//接收緩存
byte[] byteArray = Encoding.UTF8.GetBytes(padata); // 轉(zhuǎn)化
HttpWebRequest webRequest2 = (HttpWebRequest)WebRequest.Create(url); //新建一個(gè)WebRequest對(duì)象用來請(qǐng)求或者響應(yīng)url
ServicePointManager.CertificatePolicy = new AcceptAllCertificatePolicy();
webRequest2.CookieContainer = cc; //保存cookie
webRequest2.Method = "POST"; //請(qǐng)求方式是POST
webRequest2.UserAgent = "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1599.69 Safari/537.36";
webRequest2.Referer = "https://mp.weixin.qq.com/";
webRequest2.ContentType = "application/x-www-form-urlencoded"; //請(qǐng)求的內(nèi)容格式為application/x-www-form-urlencoded
webRequest2.ContentLength = byteArray.Length;
Stream newStream = webRequest2.GetRequestStream(); //返回用于將數(shù)據(jù)寫入 Internet 資源的 Stream。
// Send the data.
newStream.Write(byteArray, 0, byteArray.Length); //寫入?yún)?shù)
newStream.Close();
HttpWebResponse response2 = (HttpWebResponse)webRequest2.GetResponse();
StreamReader sr2 = new StreamReader(response2.GetResponseStream(), Encoding.Default);
string text2 = sr2.ReadToEnd();
//此處用到了newtonsoft來序列化
WeiXinRetInfo retinfo = Newtonsoft.Json.JsonConvert.DeserializeObject<WeiXinRetInfo>(text2);
string token = string.Empty;
if (retinfo.ErrMsg.Length > 0)
{
token = retinfo.ErrMsg.Split(new char[] { '&' })[2].Split(new char[] { '=' })[1].ToString();//取得令牌
LoginInfo.LoginCookie = cc;
LoginInfo.CreateDate = DateTime.Now;
LoginInfo.Token = token;
result = true;
}
}
catch (Exception ex)
{
throw new Exception(ex.StackTrace);
}
return result;
}
public static class LoginInfo
{
/// <summary>
/// 登錄后得到的令牌
/// </summary>
public static string Token { get; set; }
/// <summary>
/// 登錄后得到的cookie
/// </summary>
public static CookieContainer LoginCookie { get; set; }
/// <summary>
/// 創(chuàng)建時(shí)間
/// </summary>
public static DateTime CreateDate { get; set; }
}
internal class AcceptAllCertificatePolicy : ICertificatePolicy
{
public AcceptAllCertificatePolicy()
{
}
public bool CheckValidationResult(ServicePoint sPoint,
X509Certificate cert, WebRequest wRequest, int certProb)
{
// Always accept
return true;
}
}
}
獲取fakeid public static ArrayList SubscribeMP()
{
try
{
CookieContainer cookie = null;
string token = null;
cookie = WeiXinLogin.LoginInfo.LoginCookie;//取得cookie
token = WeiXinLogin.LoginInfo.Token;//取得token
/*獲取用戶信息的url，這里有幾個(gè)參數(shù)給大家講一下，1.token此參數(shù)為上面的token 2.pagesize此參數(shù)為每一頁(yè)顯示的記錄條數(shù)
3.pageid為當(dāng)前的頁(yè)數(shù)，4.groupid為微信公眾平臺(tái)的用戶分組的組id，當(dāng)然這也是我的猜想不一定正確*/
string Url = "https://mp.weixin.qq.com/cgi-bin/contactmanage?t=user/index&pagesize=10&pageidx=0&type=0&groupid=0&token=" + token + "&lang=zh_CN";
HttpWebRequest webRequest2 = (HttpWebRequest)WebRequest.Create(Url);
webRequest2.CookieContainer = cookie;
webRequest2.ContentType = "text/html; charset=UTF-8";
webRequest2.Method = "GET";
webRequest2.UserAgent = "Mozilla/5.0 (Windows NT 5.1; rv:2.0.1) Gecko/20100101 Firefox/4.0.1";
webRequest2.ContentType = "application/x-www-form-urlencoded";
HttpWebResponse response2 = (HttpWebResponse)webRequest2.GetResponse();
StreamReader sr2 = new StreamReader(response2.GetResponseStream(), Encoding.Default);
string text2 = sr2.ReadToEnd();
MatchCollection mc;
//由于此方法獲取過來的信息是一個(gè)html網(wǎng)頁(yè)所以此處使用了正則表達(dá)式，注意：（此正則表達(dá)式只是獲取了fakeid的信息如果想獲得一些其他的信息修改此處的正則表達(dá)式就可以了。）
Regex r = new Regex("\"id\"\\:\\d+,\"nick_name\""); //定義一個(gè)Regex對(duì)象實(shí)例
mc = r.Matches(text2);
Int32 friendSum = mc.Count; //好友總數(shù)
string fackID = "";
ArrayList fackID1 = new ArrayList();
for (int i = 0; i < friendSum; i++)
{
//"id":208989515,"nick_name"
fackID = mc[i].Value.Replace(",\"nick_name\"", "").Split(new char[] { ':' })[1];
fackID = fackID.Replace("\"", "").Trim();
fackID1.Add(fackID);
}
return fackID1;
}
catch (Exception ex)
{
throw new Exception(ex.StackTrace);
}
}
根據(jù)fakeid獲取openid  public static string GetOpenidByFakeid(string fakeid) { try { CookieContainer cookie = null; string token = null; cookie = WeiXinLogin.LoginInfo.LoginCookie;//取得cookie token = WeiXinLogin.LoginInfo.Token;//取得token string Url = "https://mp.weixin.qq.com/cgi-bin/singlemsgpage?msgid=&source=&count=20&t=wxm-singlechat&fromfakeid=" + fakeid + "&token=" + token + "&lang=zh_CN"; HttpWebRequest webRequest2 = (HttpWebRequest)WebRequest.Create(Url); webRequest2.CookieContainer = cookie; webRequest2.ContentType = "text/html; charset=UTF-8"; webRequest2.Method = "GET"; webRequest2.UserAgent = "Mozilla/5.0 (Windows NT 5.1; rv:2.0.1) Gecko/20100101 Firefox/4.0.1"; webRequest2.ContentType = "application/x-www-form-urlencoded"; HttpWebResponse response2 = (HttpWebResponse)webRequest2.GetResponse(); StreamReader sr2 = new StreamReader(response2.GetResponseStream(), Encoding.UTF8); string text2 = sr2.ReadToEnd(); HtmlDocument doc = new HtmlDocument(); doc.LoadHtml(text2); var str = doc.GetElementbyId("json-msgList").InnerHtml; JArray messages = JArray.Parse(str); foreach (var message in messages) { string strContent = HttpUtility.HtmlDecode(message["content"].ToString()); Regex reg = new Regex(@"(?is)<a[^>]*?href=(['""\s]?)(?<href>[^'""\s]*)\1[^>]*?>"); MatchCollection match = reg.Matches(strContent); var href = ""; foreach (Match m in match) { href = m.Groups["href"].Value; } var openid = GetUrlParamValue(href, "openid"); if (!string.IsNullOrEmpty(openid)) return openid; } return ""; } catch (Exception ex) { return ""; } }
由于之前有建立openid與usercode的關(guān)系，所以可以根據(jù)usercode找到openid，又可以根據(jù)openid找到fakeid。使用下面代碼進(jìn)行推送： public static bool SendMessage(string Message, string fakeid)
{
bool result = false;
CookieContainer cookie = null;
string token = null;
cookie = WeiXinLogin.LoginInfo.LoginCookie;//取得cookie
token = WeiXinLogin.LoginInfo.Token;//取得token
string strMsg = System.Web.HttpUtility.UrlEncode(Message); //對(duì)傳遞過來的信息進(jìn)行url編碼
string padate = "type=1&content=" + strMsg + "&error=false&tofakeid=" + fakeid + "&token=" + token + "&ajax=1";
string url = "https://mp.weixin.qq.com/cgi-bin/singlesend?t=ajax-response&lang=zh_CN";
byte[] byteArray = Encoding.UTF8.GetBytes(padate); // 轉(zhuǎn)化
HttpWebRequest webRequest2 = (HttpWebRequest)WebRequest.Create(url);
webRequest2.CookieContainer = cookie; //登錄時(shí)得到的緩存
webRequest2.Referer = "https://mp.weixin.qq.com/cgi-bin/singlemsgpage?token=" + token + "&fromfakeid=" + fakeid + "&msgid=&source=&count=20&t=wxm-singlechat&lang=zh_CN";
webRequest2.Method = "POST";
webRequest2.UserAgent = "Mozilla/5.0 (Windows NT 5.1; rv:2.0.1) Gecko/20100101 Firefox/4.0.1";
webRequest2.ContentType = "application/x-www-form-urlencoded";
webRequest2.ContentLength = byteArray.Length;
Stream newStream = webRequest2.GetRequestStream();
// Send the data.
newStream.Write(byteArray, 0, byteArray.Length); //寫入?yún)?shù)
newStream.Close();
HttpWebResponse response2 = (HttpWebResponse)webRequest2.GetResponse();
StreamReader sr2 = new StreamReader(response2.GetResponseStream(), Encoding.Default);
string text2 = sr2.ReadToEnd();
if (text2.Contains("ok"))
{
result = true;
}
return result;
}
可以寫一個(gè)長(zhǎng)期運(yùn)行的windows服務(wù)用于建立fakeid和openid的關(guān)系，這里不再詳訴。
|
|
|
