转：通过网卡获取http请求数据

通过网卡获取http请求数据 

原文地址：http://www.cnblogs.com/rq204/archive/2012/01/03/2310905.html

2012-01-03 12:33 by rq204, 6 visits, 收藏, 编辑

这个代码的原始地址是：http://www.codeproject.com/KB/cpp/sniffer80.aspx

这个是朋友反编译了一下，同时对http的解包再做了一些修改后的代码，我拿来用了。

代码调用也很简单

 1 using System;
 2 using System.Collections.Generic;
 3 using System.ComponentModel;
 4 using System.Data;
 5 using System.Drawing;
 6 using System.Text;
 7 using System.Windows.Forms;
 8 using System.Net;
 9 using Sniffer;
10 
11 namespace snifferHttp
12 {
13     public partial class Form1 : Form
14     {
15         public Form1()
16         {
17             InitializeComponent();
18         }
19 
20         private static SnifferSocket m_Sniffer;
21         private void Form1_Load(object sender, EventArgs e)
22         {
23             m_Sniffer = new SnifferSocket();
24             m_Sniffer.TcpPacketReceived += new TcpPacketCallback(m_Sniffer_TcpPacketReceived);
25             IPAddress[] addressList = Dns.GetHostAddresses(Dns.GetHostName());
26 
27             if (addressList.Length != 0)
28             {
29                 foreach (IPAddress ip in addressList)
30                 {
31                     if (ip.ToString().Split('.').Length == 4) m_Sniffer.Sniff(ip.ToString());
32                 }
33             }
34         }
35 
36         void m_Sniffer_TcpPacketReceived(TcpPacket packet)
37         {
38             string data = Encoding.ASCII.GetString(packet.Data);
39             if (data.StartsWith("GET "))
40             {
41                 HttpSniffer.HttpPacket sn = new HttpSniffer.HttpPacket();
42                 sn.ParseRequest(data);
43 
44                 this.SetText("Get Request host:" + sn.Host + ",url:" + sn.URL+"cookie:"+sn.Cookie);
45             }
46             else if (data.StartsWith("HTTP/"))
47             {
48                 HttpSniffer.HttpPacket sn = new HttpSniffer.HttpPacket();
49                 sn.ParseRequest(data);
50                 this.SetText("Get Response host:" + sn.Host + ",url:" + sn.URL + "cookie:" + sn.Cookie);
51             }
52         }
53 
54         private void SetText(string text)
55         {
56             try
57             {
58                 this.Invoke((EventHandler)delegate
59                 {
60                     this.textBox1.AppendText(text + "\r\n");
61                 });
62             }
63             catch { }
64         }
65     }
66 }

源代码下载：https://files.cnblogs.com/rq204/SnifferHttp.7z