asp.NetはコンピュータMACアドレスによって1台あたり1回のアカウントしか受け取れないことを制限します

           ！


 ：              




 

using System;

using System.Data;

using System.Configuration;

using System.Collections;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.Text.RegularExpressions;

using System.Diagnostics;

public partial class _Default : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

labName.Text = labPass.Text = "";

}

protected void getNamePass_Click(object sender, EventArgs e)

{

//      IP  

string IP = Request.UserHostAddress;

//       

string dirResults = "";

//  ProcessStartInfo               

ProcessStartInfo psi = new ProcessStartInfo();

//  Process                 

Process proc = new Process();

//             

psi.FileName = "nbtstat";

//    Process.StandardInput      

psi.RedirectStandardInput = false;

//        Process.StandardOutput 

psi.RedirectStandardOutput = true;

//                 

psi.Arguments = "-A " + IP;

//            

psi.UseShellExecute = false;

//      

proc = Process.Start(psi);

//  StandardOutput   

dirResults = proc.StandardOutput.ReadToEnd();

//  Process               

proc.WaitForExit();

//   StandardOutput     "/r,/n,/t"

dirResults = dirResults.Replace("\r", "").Replace("
", "").Replace("\t", "");

//       

Regex reg = new Regex("MAC[ ]{0,}Address[ ]{0,}=[ ]{0,}(?((.)*?))MAC", RegexOptions.IgnoreCase | RegexOptions.Compiled);

//    StandardOutput     "MAC"   

dirResults = dirResults + "MAC";

//  Cookie

HttpCookie oldCookie = Request.Cookies["netCard"];

//            

Match mc = reg.Match(dirResults);

//        “-”  

string networkCard = mc.Groups["key"].Value.Replace("-", "");

//  Cookie    

if (oldCookie == null)

{

//              

if (mc.Success)

{

//    

labName.Text = "     ：" + networkCard;

//    

labPass.Text = "     ：1234";

//  Cookie  

HttpCookie newCookie = new HttpCookie("netCard");

//  Cookie     

newCookie.Expires = DateTime.MaxValue;

//  Cookie   

newCookie.Values.Add("numberCard", networkCard);

// Cookie   Cookie   

Response.Cookies.Add(newCookie);

}

else

{

RegisterStartupScript("", "alert('     ！');");

}

}

else

{

//  Cookie     

string numberCard = oldCookie.Values["numberCard"];

//  Cookie                 

if (numberCard.Trim() == networkCard.Trim())

{

RegisterStartupScript("", "alert('   ！           。')");

}

else

{

//              

if (mc.Success)

{

//    

labName.Text = "     ：" + networkCard;

//    

labPass.Text = "     ：1234";

//  Cookie   

oldCookie.Values.Set("numberCard", networkCard);

// Cookie   Cookie   

Response.Cookies.Add(oldCookie);

}

else

{

RegisterStartupScript("", "alert('     ！');");

}

}

}

}

}