C#抓包，SnifferHttp使用网卡获取Http请求数据

【实例简介】

请右键以管理员身份运行，测试可获取http请求数据
【实例截图】

【核心代码】

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Net;
using Sniffer;

namespace snifferHttp
{
    public partial class frmMain : Form
    {
        public frmMain()
        {
            InitializeComponent();
        }

        private static SnifferSocket m_Sniffer;
        private void Form1_Load(object sender, EventArgs e)
        {
            m_Sniffer = new SnifferSocket();
            m_Sniffer.TcpPacketReceived  = new TcpPacketCallback(m_Sniffer_TcpPacketReceived);
            IPAddress[] addressList = Dns.GetHostAddresses(Dns.GetHostName());

            if (addressList.Length != 0)
            {
                foreach (IPAddress ip in addressList)
                {
                    if (ip.ToString().Split('.').Length == 4) m_Sniffer.Sniff(ip.ToString());
                }
            }
        }

        void m_Sniffer_TcpPacketReceived(TcpPacket packet)
        {
            string data = Encoding.ASCII.GetString(packet.Data);
            if (data.StartsWith("GET "))
            {
                HttpSniffer.HttpPacket sn = new HttpSniffer.HttpPacket();
                sn.ParseRequest(data);

                this.SetText("GET:"   sn.Host   ",url:"   sn.URL "cookie:" sn.Cookie);
            }
            else if (data.StartsWith("POST "))
            {
                HttpSniffer.HttpPacket sn = new HttpSniffer.HttpPacket();
                sn.ParseRequest(data);

                this.SetText("POST:"   sn.Host   ",url:"   sn.URL   "cookie:"   sn.Cookie);
            }
            else if (data.StartsWith("HTTP/"))
            {
                HttpSniffer.HttpPacket sn = new HttpSniffer.HttpPacket();
                sn.ParseRequest(data);
                this.SetText("请求:"   sn.Host   ",url:"   sn.URL   "cookie:"   sn.Cookie);
            }
            else 
            {
                //HttpSniffer.HttpPacket sn = new HttpSniffer.HttpPacket();
                //sn.ParseRequest(data);
                //this.SetText("请求:"   sn.Host   ",url:"   sn.URL );
            }
        }

        private void SetText(string text)
        {
            try
            {
                this.Invoke((EventHandler)delegate
                {
                    this.textBox1.AppendText(text   "\r\n");
                });
            }
            catch { }
        }
    }
}