C# whois domain--ASP.NET, WindowsForm

FROM: http://www.geekpedia.com/tutorial231_Getting-the-Who-Is-Information-of-a-Hostname.html

http://www.aspdev.org/articles/build-whois-lookup-asp.net/

 

Windows Forms代码

 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.IO;
 9  using  System.Net.Sockets;
10 
11  namespace  WhoIs
12  {
13       public   partial   class  Form1 : Form
14      {
15           //  Networking and IO objects we'll be using throughout the application
16          TcpClient tcpWhois;
17          NetworkStream nsWhois;
18          BufferedStream bfWhois;
19          StreamWriter swSend;
20          StreamReader srReceive;
21 
22           public  Form1()
23          {
24              InitializeComponent();
25          }
26 
27           private   void  Form1_Load( object  sender, EventArgs e)
28          {
29               //  Has the first value selected
30              cmbServer.SelectedIndex  =   0 ;
31          }
32 
33           private   void  btnLookup_Click( object  sender, EventArgs e)
34          {
35               try  
36              {
37                   //  The TcpClient should connect to the who-is server, on port 43 (default who-is)
38                  tcpWhois  =   new  TcpClient(cmbServer.SelectedItem.ToString(),  43 );
39                   //  Set up the network stream
40                  nsWhois  =  tcpWhois.GetStream();
41                   //  Hook up the buffered stream to the network stream
42                  bfWhois  =   new  BufferedStream(nsWhois);
43              }
44               catch
45              {
46                  MessageBox.Show( " Could not open a connection to the Who-Is server. " );
47              }
48               //  Send to the server the host-name that we want to get information on
49              swSend  =   new  StreamWriter(bfWhois);
50              swSend.WriteLine(txtHostName.Text);
51              swSend.Flush();
52               //  Clear the textbox of anything existing content
53              txtResponse.Clear();
54               try  
55              {
56                  srReceive  =   new  StreamReader(bfWhois);
57                   string  strResponse;
58                   //  Read the response line by line and put it in the textbox
59                   while  ((strResponse  =  srReceive.ReadLine())  !=   null ) 
60                  {
61                      txtResponse.Text  +=  strResponse  +   " \r\n " ;
62                  }
63              }
64               catch
65              {
66                  MessageBox.Show( " Could not read data from the Who-Is server. " );
67              }
68               //  We're done with the connection
69              tcpWhois.Close();
70          }
71      }
72  }

 

 

 

Web Form代码

 1  <% @ Page Language = " C# "  AutoEventWireup = " true "  CodeBehind = " WebForm3.aspx.cs "  Inherits = " WebStat.WebForm3 "   %>
 2  <%  @Import Namespace = " System.Net.Sockets "   %>
 3  <%  @Import Namespace = " System.Text "   %>
 4  <%  @Import Namespace = " System.IO "   %>
 5  <%  @Import Namespace = " System.Text.RegularExpressions "   %>  
 6  < script language = " C# "  runat = " server " >
 7 
 8  public   void  btn_Click( object  sender, EventArgs eArgs)
 9  {
10  try
11  {
12  TcpClient objTCPC  =   new  TcpClient(Request.Form[ " WhoisServer " ],  43 );
13  string  strDomain  =  Request.Form[ " DomainName " ]  +   " \r\n " ;
14  byte [] arrDomain  =  Encoding.ASCII.GetBytes(strDomain);
15 
16  Stream objStream  =  objTCPC.GetStream();
17  objStream.Write(arrDomain,  0 , strDomain.Length);
18  StreamReader objSR  =   new  StreamReader(objTCPC.GetStream(),
19  Encoding.ASCII);
20  lblResponse.Text  =   " <b> "   +  Request.Form[ " DomainName " ]  +
21  " </b><br><br> "   +  Regex.Replace(objSR.ReadToEnd(), " \n " , " <br> " );
22 
23  objTCPC.Close();
24  }
25  catch (Exception ex)
26  {
27  lblResponse.Text  =  ex.ToString();
28  }
29  }
30 
31  </ script >
32 
33  <! DOCTYPE html PUBLIC  " -//W3C//DTD XHTML 1.0 Transitional//EN "   " http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd " >
34 
35  < html xmlns = " http://www.w3.org/1999/xhtml "   >
36  < head runat = " server " >
37       < title > 无标题页 </ title >
38       < style type = " text/css " >
39  .main {font - family:Verdana; font - size:12px;}
40  .title {font - family:Verdana; font - size:18px; font - weight:bold;}
41  </ style >  
42  </ head >
43  < body >
44  < form id = " Form2 "  method = " POST "  name = " MainForm "  runat = " server " >
45 
46       < div >
47       < span  class = " title "  align = " center " > WHOIS ASP.NET page </ span >
48 
49 
50  < table >
51  < tr >
52  < td  class = " main "  align = " right " > Whois Server </ td >
53  < td  class = " main " >
54  < asp:DropDownList  class = " main "  id = " WhoisServer "  runat = " server " >
55  < asp:ListItem value = " whois.networksolutions.com " >
56  whois.networksolutions.com (.COM, .NET, .EDU) </ asp:ListItem >
57  < asp:ListItem value = " whois.ripe.net " > whois.ripe.net
58  (Europe) </ asp:ListItem >
59  < asp:ListItem value = " whois.cira.ca " > whois.cira.ca (.CA)
60  </ asp:ListItem >
61  < asp:ListItem value = " whois.nic.uk " > whois.nic.uk
62  (.CO.UK) </ asp:ListItem >
63  < asp:ListItem value = " whois.domain-registry.nl " >
64  whois.domain - registry.nl (.NL) </ asp:ListItem >
65  </ asp:DropDownList >
66  </ td >
67  </ tr >
68  < tr >
69  < td  class = " main "  align = " right " > Domain Name: </ td >
70  < td  class = " main " >< input type = " text "   class = " main "  name = " DomainName "  value = "" /></ td >
71  </ tr >
72  < tr >
73  < td  class = " main " >   </ td >
74  < td  class = " main " >< input type = " Submit "  id = " btnSubmit "  onserverclick = " btn_Click "  value = " Send "  runat = " server "   /></ td >
75  </ tr >
76  </ table >
77  < br />< br />
78  < asp:Label  class = " main "  id = " lblResponse "  runat = " server " />  
79       </ div >
80       </ form >
81  </ body >
82  </ html >
83