Whois functionality

[thoff]

Hi all

I'm trying to create some whois functionality using this code:

$fp = fsockopen(NET_SERVER, 43, $errno, $errstr, 30);
if(!$fp)
{
echo "Couldn't connect to whois server. Try again later.";
exit;
}
fputs($fp, $domname);
while(!feof($fp))
{
$net_result=fgets($fp, 255);
echo $net_result;
} fclose($fp);

This is giving me all the information I need from the relative registrar-server.

What I really need is actually not all the information, but simply a flag/variable indicating if the domain name is available or not.

Anyone have a clue? Need some sleep soon...

🙂 Tore

[Roger_Ramjet]

What you want you already have. A part of the whois data includes the 'Status'. Read this for an explanation of the various status codes that can be returned. You see, 'available' is a relative term, as you will understand from reading the link.

[Skull]

Here's how I done it

$domain would be like "linksuk", and $tld would be like "com"

$domain = $_REQUEST['domain'];
$tld = $_REQUEST['tld'];
$replacements = array("http://","www",".","com","net","org");
eregi_replace($replacements,"",$domain);
if( !empty($domain) && !empty($tld) ) {
	$data = array();
	$lines = file("http://www.whois.net/checkDomain.cgi2?domain=".$domain."&tld=".$tld,"rb");
	foreach($lines as $lineNum => $line) {
		if($lineNum == 28) {
		  if(strip_tags($line) == "Domain Name ".$domain.".".$tld." is available!\n") {
			  $registered = 0;
		  }else {
			  $registered = 1;
			  $continue = 0;
			  $info = "";
			$Wlines = file("http://www.whois.net/whois.cgi2?d=".$domain.".".$tld,"rb");
			foreach($Wlines as $WlineNum => $Wline) {
				if(htmlspecialchars(strip_tags($Wline,"<pre>")) == "WHOIS information for ".$domain.".".$tld.":&lt;pre&gt;\n") {
					$continue = 1;
				}
				if($continue == 1) { $info .= strip_tags($Wline); }
				if(htmlspecialchars(strip_tags($Wline,"<pre>")) == "&lt;/pre&gt;\n") {
					$continue = 0;
				}
			}
		  }
		}
	}
	if($registered == 0) { echo "Domain Name ".$domain.".".$tld." is available!"; }else { echo 'Sorry, the domain name "'.$domain.'.'.$tld.'" has already been registered<br /><br />'; }

Then to show the user the details on the domain name entered (if its already taken) you'd simply add in something like

echo nl2br($info);

Hope that helps you

[thoff]

Hi again ...

I got some very useful tips here 🙂 I'm using explode() to keep track of the result like this:

while(!feof($fp))
{
$length=$length+1; $net_result=fgets($fp, 255);
$result = explode("\r\n",$net_result);

						 echo nl2br($result[0]);
}

Still I'm troubeling my mind with something. When echoing $result[0] like I did over the complete result has ended here. I guess this is because the term \r\n is not correct. If so, what then is indicating the end of each line?

Any help would be helpful. 🙂

Tore

[Roger_Ramjet]

\r\n is winders for newline, on a *NIX box it's just \n

[thoff]

I have changed \r\n with \n and tried both single and double quotes. The result is still the same. Everything ends up in $result[0]. 😕

And another thing I also wonder about. Why can I not echo the variables I use inside the while loop on the outside of it?

---- :bemused:

Still I think this is just a silly little bagatelle I forgot ....

[Roger_Ramjet]

If you fgets without a length parameter then it will return 1 line at a time, so you can bypass this problem.

from the manual

Reading ends when length - 1 bytes have been read, on a newline (which is included in the return value), or on EOF (whichever comes first). If no length is specified, the length defaults to 1k, or 1024 bytes.

Just make sure that each line is less than the default in length, or specify a greater length so that it hits the newline anyway.

[thoff]

Thanks for you good advice Roger.

the function so far is looking like this:

$fp = fsockopen(NET_SERVER, 43, $errno, $errstr, 30);
if(!$fp)
{
echo "Couldn't connect to whois server. Try again later.";
exit;
}
fputs($fp, $domname);
while(!feof($fp))
{
$net_result=fgets($fp);
$result = explode("\n",$net_result);

echo nl2br($result[0]);				

}
fclose($fp);

I echo out $result[0] just to check if it works. Maybe it's better to try this on net? It is available at http://www.thg.no/whois.php (works only for .com domains so far)

Though I'm learning a lot from this I don't understand why it isn't working.... :glare: