C # domain name whois Query

Last Update:2018-12-05 Source: Internet

Author: User

Tags getstream

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<% @ Page Language = "C #" %>
<% @ Import namespace = "system. net. Sockets" %>
<% @ Import namespace = "system. Text" %>
<% @ Import namespace = "system. Io" %>
<HTML>
<Head>
<Title>. com/. Net/. org/. CN Domain Name whois information query </title>
<Meta name = "keywords" content = ". com,. net,. org,. CN Domain Name whois information query">
<Meta name = "generator" content = ". com/. Net/. org,. CN Domain Name whois information query">
<Meta name = "Description" content = ". com/. Net/. org,. CN Domain Name whois information query">
<Style>
<! --
Body, input {
Font-family: tahoma, verdana; color: #004080; font-size: 12px
}
A: Link, A: visited {
Text-Decoration: none; color: #004080.
}
-->
</Style>
</Head>
<Body>
<Form ID = "fmquery" runat = "server">
& Nbsp; domain name to be queried:
Www. <asp: textbox id = "txtdomain" width = "100" value = "aspxboy. com" runat = "server"/>
& Nbsp; <asp: button id = "btnquery" onclick = "btn_click"
TEXT = "query! "Runat =" server "/> (query only. COM /. net /. org /. CN Domain Name whois information) & nbsp; <a href = "whoiscode.htm" Title = "view the source code here! "> Source code is here </a>
<Br> <HR width = "550" Height = "1" align = "Left"> <br>
<Asp: Label id = "lblresult" runat = "server"/>
</Form>
</Body>
</Html>
<Script language = "C #" runat = "server">
Void btn_click (Object sender, eventargs E)
{
String strserver;
String strdomain = txtdomain. text;
String strservercom = "whois.networksolutions.com ";
String strservercn = "whois.cnnic.net.cn ";
String strresponse;
String [] arrdomain = strdomain. Split ('.');
If (arrdomain [1]. toupper () = "cn ")
{

Strserver = strservercn;
}
Else
{
Strserver = strservercom;
}

Bool blsuccess = iswhosissuccess (strdomain, strserver, out strresponse );
If (blsuccess)
{
Lblresult. Text = strresponse;
}
Else
{
Lblresult. Text = "An error occurred while searching ....";
}
}
Bool iswhosissuccess (string strdomain, string strserver,
Out string strresponse)
{
Strresponse = "NONE ";
Bool blsuccess = false;
Tcpclient TCPC = new tcpclient ();
Try
{
TCPC. Connect (strserver, 43 );
}
Catch (socketexception ex)
{
Strresponse = "the WHOIS server cannot be connected. Please try again later. ";
Return false;
}

Strdomain + = "/R/N ";
Byte [] arrdomain = encoding. utf8.getbytes (strdomain. tochararray ());
Try
{
Stream S = TCPC. getstream ();
S. Write (arrdomain, 0, strdomain. Length );

Streamreader sr = new streamreader (TCPC. getstream (), encoding. utf8 );
Stringbuilder strbuilder = new stringbuilder ();
String strline = NULL;

While (null! = (Strline = Sr. Readline ()))
{
Strbuilder. append (strline + "<br> ");
}
TCPC. Close ();

Blsuccess = true;
String my = "go to huobazi's website: <a href =/" http://www.aspxboy.com/"Title = /". net boys/"> www. aspxboy. com </a> <br> ";
Strresponse = strbuilder. tostring () + my ;}
Catch (exception E)
{
Strresponse = E. tostring ();
}

Return blsuccess;
}
</SCRIPT>

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

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