c#实现QQ群成员列表导出及邮件群发之模拟QQ登陆

前言

本文的重要部分：

1、抓包获取QQ空间或者邮箱登陆地址，分析参数，用户名，密码，验证码，gtk，随即数。

2、获取每次登陆需要的验证码

3、用户名，密码，验证码加密得到登陆密码

4、Http模拟登陆拿cookie

本文实验的思路也可换另一种方式，抓包获取登陆的js,用代码操作js来计算密码，gtk等实现登陆。

抓包

1、我们来访问qq空间的地址http://i.qq.com/，打开网站，我们可以看到登陆的对话框，首先我们输入一个错误的账号和密码，抓起提交的地址。

2、输入用户名和密码之后我们用抓包工具看到有2个后台请求的地址，如下图

我们可以根据返回的代码可以看出第二个图的地址是QQ登陆后台get请求的地址，所以我们实现登陆就是像这个地址提交数据。第一张图则是空间登陆每次返回的验证码产生的地址，通过多次输入正确用户名密码，第一张图地址返回类似ptui_checkVC('0','!JWE','\x00\x00\x00\x00\x46\x86\xd2\x36');代码，其中括号内参数与登陆请求地址中verifycode=!JWE每次相同，这个便是登陆的验证码，登陆地址则返回类似ptuiCB('0','0','http://qzs.qq.com/qzone/v5/loginsucc.html?para=izone','0','登录成功！', 'xxx');返回此代码则说明登陆成功。

通过抓包我们提取出来的2个地址：

1、验证码获取地址（输入用户名时返回）：

http://check.ptlogin2.qq.com/check?regmaster=&uin={0}&appid=549000912&js_ver=10038&js_type=1&login_sig=46Flu6g0o2A1hcewVAPUpItgSNJncoqujR4vudgX8ZRnruuCSOzMGcbd3CnQhw0y&u1=http%3A%2F%2Fqzs.qq.com%2Fqzone%2Fv5%2Floginsucc.html%3Fpara%3Dizone&r={1}

参数0：QQ账号，参数1：随即数

说明：一般情况下是不会产生手动输入验证码的情况下，若是QQ号码不存在或者错误，此时会出现图片验证码，我们可以用一个处理一下显示在imge中手动输入。

2、登陆提交地址：

http://ptlogin2.qq.com/login?u={0}&p={1}&verifycode={2}&aid=549000912&u1=http%3A%2F%2Fqzs.qq.com%2Fqzone%2Fv5%2Floginsucc.html%3Fpara%3Dizone&h=1&ptredirect=0&ptlang=2052&from_ui=1&dumy=&low_login_enable=0&regmaster=&fp=loginerroralert&action=11-52-1375668422981&mibao_css=&t=1&g=1&js_ver=10038&js_type=1&login_sig=46Flu6g0o2A1hcewVAPUpItgSNJncoqujR4vudgX8ZRnruuCSOzMGcbd3CnQhw0y

参数0：QQ号码，参数1：加密以后的密码，参数2：返回的验证码

本人文字功底实在太差，说不太清楚，抓包需要我多次试验，多次分析，才可取得正确的地址。登陆的最重要目的是获取请求页面的cookie。

代码部分

1、http请求帮助代码

 1     public class HttpHelper
 2     {
 3         /// <summary>
 4         /// 获取字符流
 5         /// </summary>
 6         /// <param name="url"></param>
 7         /// <param name="cookieContainer"></param>
 8         /// <returns></returns>
 9         public static Stream GetStream(string url, CookieContainer cookieContainer)
10         {
11             HttpWebRequest httpWebRequest = null;
12             HttpWebResponse httpWebResponse = null;
13 
14             try
15             {
16                 httpWebRequest = (HttpWebRequest)HttpWebRequest.Create(url);
17                 httpWebRequest.CookieContainer = cookieContainer;
18                 httpWebRequest.ContentType = contentType;
19                 httpWebRequest.Referer = referer;
20                 httpWebRequest.Accept = accept;
21                 httpWebRequest.UserAgent = userAgent;
22                 httpWebRequest.Method = "GET";
23                 httpWebRequest.ServicePoint.ConnectionLimit = int.MaxValue;
24 
25                 httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();
26                 Stream responseStream = httpWebResponse.GetResponseStream();
27 
28                 return responseStream;
29             }
30             catch (Exception)
31             {
32                 return null;
33             }
34 
35         }
36 
37         /// <summary>
38         /// 获取HTML
39         /// </summary>
40         /// <param name="url"></param>
41         /// <param name="cookieContainer"></param>
42         /// <returns></returns>
43         public static string GetHtml(string url, CookieContainer cookieContainer)
44         {
45             Thread.Sleep(1000);
46             HttpWebRequest httpWebRequest = null;
47             HttpWebResponse httpWebResponse = null;
48             try
49             {
50                 httpWebRequest = (HttpWebRequest)HttpWebRequest.Create(url);
51                 httpWebRequest.CookieContainer = cookieContainer;
52                 httpWebRequest.ContentType = contentType;
53                 httpWebRequest.Referer = referer;
54                 httpWebRequest.Accept = accept;
55                 httpWebRequest.UserAgent = userAgent;
56                 httpWebRequest.Method = "GET";
57                 httpWebRequest.ServicePoint.ConnectionLimit = int.MaxValue;
58 
59                 httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();
60                 Stream responseStream = httpWebResponse.GetResponseStream();
61                 StreamReader streamReader = new StreamReader(responseStream, Encoding.UTF8);
62                 string html = streamReader.ReadToEnd();
63 
64                 streamReader.Close();
65                 responseStream.Close();
66 
67                 httpWebRequest.Abort();
68                 httpWebResponse.Close();
69 
70                 return html;
71             }
72             catch (Exception)
73             {
74                 return string.Empty;
75             }
76 
77         }
78     }

View Code

2、获取验证码

　　　　//取验证码public static string GetVerfiyCode(string qqnum,CookieContainer cookie){Random rand = new Random();double r = rand.NextDouble();string checkcodeurl = string.Format(@"http://check.ptlogin2.qq.com/check?uin={0}&appid=1006102&r={1}", qqnum, r);Stream stream = HttpHelper.GetStream(checkcodeurl, cookie);StreamReader streamReader = new StreamReader(stream, Encoding.UTF8);return streamReader.ReadToEnd();}//取图片验证码,可将验证码直接输出在image中public static Stream GetVerfycodeImage(CookieContainer cookie, string qqnum){Random rand = new Random();double r = rand.NextDouble();string codeimageurl = string.Format("http://captcha.qq.com/getimage?aid=1006102&r={0}&uin={1}", r, qqnum);return HttpHelper.GetStream(codeimageurl, cookie);}

通过GetVerfiyCode()的返回值判断，是否需要手动输入验证码

//得验证吗if (retString.Contains("ptui_checkVC('0','")){
　　　　　　　　　//不需要手动输入this.txtverfiycode.Text = retString.Replace("ptui_checkVC('0','", "").Replace("'", "").Replace(")", "").Replace(";", "").Substring(0, 4);}else if (retString.Contains("ptui_checkVC('1',")){
　　　　　　　　//需要手动输入，将验证码输出在image中this.vefycodpicbox.Image = Image.FromStream(GetVerfycodeImage(retString, this.txtUseraccount.Text));}

3、计算密码，密码的计算方法可以通过js计算，或者直接使用如下c#版的，总的来说腾讯的密码加密比较麻烦，需要QQ号码，密码，验证码三个参数，有兴趣的可自己研究下。

代码如下：

 1 public static class PasswordHelper
 2     {
 3         /// <summary>
 4         /// 根据QQ号码和验证码加密密码
 5         /// </summary>
 6         /// <param name="qqNum">QQ号码</param>
 7         /// <param name="password">QQ密码</param>
 8         /// <param name="verifycode">验证码</param>
 9         /// <returns>密码密文</returns>
10         public static string GetPassword(string qqNum, string password, string verifycode)
11         {
12             //uin为QQ号码转换为16位的16进制
13             int qq;
14             int.TryParse(qqNum, out qq);
15 
16             qqNum = qq.ToString("x");
17             qqNum = qqNum.PadLeft(16, '0');
18 
19             String P = hexchar2bin(md5(password));
20             String U = md5(P + hexchar2bin(qqNum)).ToUpper();
21             String V = md5(U + verifycode.ToUpper()).ToUpper();
22             return V;
23         }
24 
25         public static string md5(string input)
26         {
27             byte[] buffer = MD5.Create().ComputeHash(Encoding.GetEncoding("ISO-8859-1").GetBytes(input));
28             return binl2hex(buffer);
29         }
30 
31         public static string binl2hex(byte[] buffer)
32         {
33             StringBuilder builder = new StringBuilder();
34             for (int i = 0; i < buffer.Length; i++)
35             {
36                 builder.Append(buffer[i].ToString("x2"));
37             }
38             return builder.ToString();
39         }
40 
41         public static string hexchar2bin(string passWord)
42         {
43             StringBuilder builder = new StringBuilder();
44             for (int i = 0; i < passWord.Length; i = i + 2)
45             {
46                 builder.Append(Convert.ToChar(Convert.ToInt32(passWord.Substring(i, 2), 16)));
47             }
48             return builder.ToString();
49         }
50     }

View Code

到此为止，登陆需要的参数已经全了，下面就是实现登陆拿cookie。

4、登陆的方法与获取验证码一样

//登录方法public static bool IsLogin(string qqnum,string code,string passwords,CookieContainer cookie){string password = PasswordHelper.GetPassword(qqnum, passwords, code);string loginUrlstring = @"http://ptlogin2.qq.com/login?u=" + qqnum + "&p=" + password + "&verifycode=" + code + "&aid=1006102&u1=http%3A%2F%2Fid.qq.com%2Findex.html&h=1&ptredirect=1&ptlang=2052&from_ui=1&dumy=&fp=loginerroralert&action=8-29-82478035&mibao_css=&t=1&g=1";Stream stream = HttpHelper.GetStream(loginUrlstring, cookie);StreamReader streamReader = new StreamReader(stream, Encoding.UTF8);string retString = streamReader.ReadToEnd();//        retString    "ptuiCB('0','0','http://id.qq.com/index.html','1','登录成功！', 'xxx');\r\n"    stringreturn retString.Contains("ptuiCB('0',") ? true : false;}