一刷网络投票的小程序

最近看到网上一投票。

下载了个抓包工具
简单的抓了下数据包。。。内容如下
POST /Vote_doIP.asp HTTP/1.1
Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/x-ms-application, application/x-ms-xbap,


application/vnd.ms-xpsdocument, application/xaml+xml, */*
Referer: http://show.qingdaobaby.com/Vote.asp?id=1247
Accept-Language: zh-cn
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022)
Host: show.qingdaobaby.com
Content-Length: 59
Connection: Keep-Alive
Cache-Control: no-cache
Cookie: ASPSESSIONIDQQBBTADB=GNKABLHAIHABJFEGDJBHLFAK; cnzz_a634504=4; sin634504=none; rtime=0; ltime=1322322790279; cnzz_eid=99430049-1322321123-;


oesun=vitistime=2011%2D11%2D26+23%3A52%3A15


ValidCode=G%26KG&pid=1247&Submitok=%C8%B7%C8%CF%CD%B6%C6%B1
上面是抓包工具抓到的内容。。

从上面的内容可以看出

数据接收页面是这个

http://show.qingdaobaby.com/Vote_doIP.asp
数据发送页面是
http://show.qingdaobaby.com/Vote.asp?id=1247
post的数据是 ValidCode=G%26KG&pid=1247&Submitok=%C8%B7%C8%CF%CD%B6%C6%B1 就是验证码。跟投票的编号 跟按钮的value
就这些东西
因为这个系统需要验证码 又找了下验证码的地址
http://show.qingdaobaby.com/getcode.asp


要解决的问题有
1.验证码问题
只要不第二次访问getcode.asp页面，服务器session中存的验证码不变。（有些网站比较完验证码后，不把session里的验证码清空）
2.ip地址限制问题
adsl网络换ip很容易
用web代理也可以

开发工具vs2008



主要代码


1.得到cookie的代码
public void GetSession(string url)
{
cc = new CookieContainer();
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.CookieContainer = cc;
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
cc.Add(response.Cookies);
}
2.取出当前cookie的验证码内容把它显示到 pictureBox中


string url = "http://show.qingdaobaby.com/getcode.asp";
HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
request.CookieContainer = cc;
HttpWebResponse response = request.GetResponse() as HttpWebResponse;
System.IO.Stream responseStream = response.GetResponseStream();
this.pictureBox1.Image = Image.FromStream(responseStream);


3.可以输入验证码发送post请求了 session不过期，验证码是同一个 ，post代码
ASCIIEncoding encoding = new ASCIIEncoding();

string postData = "ValidCode=" + this.textBox2.Text + "&pid=1247";
byte[] data = encoding.GetBytes(postData);
HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create("http://show.qingdaobaby.com/Vote_doIP.asp");
myRequest.Method = "POST";
myRequest.ContentType = "application/x-www-form-urlencoded";//这个必须要加
myRequest.ContentLength = data.Length;
myRequest.Referer = "http://show.qingdaobaby.com";
myRequest.CookieContainer = cc;
Stream newStream = myRequest.GetRequestStream();
newStream.Write(data, 0, data.Length);
newStream.Close();
HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();
StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.Default);
string content = reader.ReadToEnd();
4.adsl网络下可以用dos命令rasdial 来换ip
private void com(string command)
{
System.Diagnostics.Process p = new System.Diagnostics.Process();
p.StartInfo.FileName = "cmd.exe";
p.StartInfo.Arguments = "/c " + command;
p.StartInfo.CreateNoWindow =true;
//MessageBox.Show(arg);
//下面两句必须加
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardOutput = true;
p.Start();
string output = p.StandardOutput.ReadToEnd();
//MessageBox.Show(output);
//Console.WriteLine(output);
}


Thread.Sleep(1000);
com("rasdial \"test\" /DISCONNECT"); //断开adsl连接
Thread.Sleep(1000);
com("rasdial \"test\" XXXXXX XXXXXX"); //adsl连接名称，用户名，密码。
Thread.Sleep(10000);


5.通过代理可以用下面的代码
WebProxy proxy = new WebProxy("xxxxxxxx", 80);
request.Proxy = proxy;

使用方法 ：先点“得到cookie按钮”，再点“取验证码”，在文本框里输入输入验证码后，最后点“自动投票”。

如果你发现有什么不合理的，需要改进的地方，或者你有什么更好的实现方法邮件联系[email protected]（qq常年不在线，邮件联系） 朱晓 。相互交流 谢谢

源码下载地址 http://download.csdn.net/detail/xiaoxiao108/3864961根据需要自己修改源码