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<?php
/*
Whois.php PHP classes to conduct whois queries
Copyright (C)1999,2005 easyDNS Technologies Inc. & Mark Jeftovic
Maintained by David Saez (david@ols.es)
For the most recent version of this package visit:
http://www.phpwhois.org
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
require_once('whois.client.php');
class Whois extends WhoisClient
{
// Windows based ?
var $windows = false;
// Recursion allowed ?
var $gtld_recurse = true;
// Full code and data version string (e.g. 'Whois2.php v3.01:16')
var $VERSION;
// This release of the package
var $CODE_VERSION = "4.0.0";
// Network Solutions registry server
var $NSI_REGISTRY = "whois.nsiregistry.net";
/*
* Constructor function
*/
function Whois()
{
// Load DATA array
@require('whois.servers.php');
$pos = strpos(strtolower(getenv("OS")), "win");
if ($pos == false)
$this->windows = false;
else
$this->windows = true;
// Set version
$this->VERSION = sprintf("Whois.php v%s:%s", $this->CODE_VERSION, $this->DATA_VERSION);
}
function Lookup($query = '')
{
// start clean
$this->Query['status'] = 0;
$query = trim($query);
// If domain to query was not set
if (!isSet($query) || $query == '')
{
// Configure to use default whois server
$this->Query['server'] = $this->NSI_REGISTRY;
return ;
}
// Set domain to query in query array
$this->Query['string'] = $domain = strtolower($query);
// If query is an ip address do ip lookup
if ($query == long2ip(ip2long($query)) || !strpos($query, '.'))
{
// Prepare to do lookup via the 'ip' handler
$ip = @gethostbyname($query);
$this->Query['server'] = 'whois.arin.net';
$this->Query['host_ip'] = $ip;
$this->Query['file'] = 'whois.ip.php';
$this->Query['handler'] = 'ip';
$this->Query['string'] = $ip;
$this->Query['tld'] = 'ip';
$this->Query['host_name'] = @gethostbyaddr($ip);
return $this->GetData();
}
// Build array of all possible tld's for that domain
$tld = '';
$server = '';
$dp = explode('.', $domain);
$np = count($dp) - 1;
$tldtests = array();
for ($i = 0; $i < $np; $i++)
{
array_shift($dp);
$tldtests[] = implode('.', $dp);
}
// Search the correct whois server
foreach($tldtests as $tld)
{
// Test if we know in advance that no whois server is
// available for this domain and that we can get the
// data via http or whois request
/*
reset($this->WHOIS_SPECIAL);
while (list($key, $val) = each($this->WHOIS_SPECIAL))
if ($tld == $key)
{
$domain = substr($query, 0, - strlen($key) - 1);
$val = str_replace('{domain}', $domain, $val);
$server = str_replace('{tld}', $key, $val);
break;
}
if ($server != '')
break;
*/
if (isset($this->WHOIS_SPECIAL[$tld]))
{
$val = $this->WHOIS_SPECIAL[$tld];
$domain = substr($query, 0, - strlen($tld) - 1);
$val = str_replace('{domain}', $domain, $val);
$server = str_replace('{tld}', $tld, $val);
break;
}
// Determine the top level domain, and it's whois server using
// DNS lookups on 'whois-servers.net'.
// Assumes a valid DNS response indicates a recognised tld (!?)
if ($this->windows)
$cname = $this->checkdnsrr_win($tld.'.whois-servers.net', 'CNAME');
else
$cname = checkdnsrr($tld.'.whois-servers.net', 'CNAME');
if (!$cname)
continue;
//This also works
//$server = gethostbyname($tld.".whois-servers.net");
$server = $tld.'.whois-servers.net';
break;
}
if ($tld && $server)
{
// If found, set tld and whois server in query array
$this->Query['server'] = $server;
$this->Query['tld'] = $tld;
$handler = '';
foreach($tldtests as $htld)
{
// special handler exists for the tld ?
if (isSet($this->DATA[$htld]))
{
$handler = $this->DATA[$htld];
break;
}
}
// If there is a handler process the data
if ($handler != '')
{
$this->Query['file'] = "whois.$handler.php";
$this->Query['handler'] = $handler;
}
return $this->GetData();
}
// If tld not known, and domain not in DNS, return error
unset($this->Query['server']);
$this->Query['status'] = - 1;
$this->Query['errstr'][] = $this->Query['string'].' domain is not supported';
return ;
}
/*
* Checks dns reverse records on win platform
*/
function checkdnsrr_win($hostName, $recType = '')
{
if (!empty($hostName))
{
if ($recType == '')
$recType = "MX";
exec("nslookup -type=$recType $hostName", $result);
// check each line to find the one that starts with the host
// name. If it exists thenthe function succeeded.
foreach($result as $line)
{
if (eregi("^$hostName", $line))
return true;
}
// otherwise there was no mail handler for the domain
return false;
}
return false;
}
/*
* Fix and/or add name server information
*/
function FixResult(&$result, $domain)
{
// Add usual fields
$result['regrinfo']['domain']['name'] = $domain;
// Check if nameservers exist
if (!isset($result['regrinfo']['registered']))
{
if ($this->windows)
$has_ns = $this->checkdnsrr_win($domain, "NS");
else
$has_ns = checkdnsrr($domain, "NS");
if ($has_ns)
$result['regrinfo']['registered'] = 'yes';
else
$result['regrinfo']['registered'] = 'unknown';
}
if (!isset($result['regrinfo']['domain']['nserver']))
return ;
// Normalize nameserver fields
$nserver = $result['regrinfo']['domain']['nserver'];
if (!is_array($result['regrinfo']['domain']['nserver']))
{
unset($result['regrinfo']['domain']['nserver']);
return ;
}
$dns = array();
while (list($key, $val) = each($nserver))
{
$val = str_replace('[', '', trim($val));
$val = str_replace(']', '', $val);
$val = str_replace("\t", ' ', $val);
$parts = explode(' ', $val);
$host = '';
$ip = '';
while (list($k, $p) = each($parts))
{
if ($p == '')
continue;
if (ip2long($p) == - 1)
{
if ($host == '')
$host = $p;
}
else
$ip = $p;
}
if ($ip == '')
{
$ip = gethostbyname($host);
if ($ip == $host)
$ip = '(DOES NOT EXIST)';
}
if (substr($host,-1,1) == '.')
$host = substr($host,0,-1);
$dns[strtolower($host)] = $ip;
}
$result['regrinfo']['domain']['nserver'] = $dns;
}
}
?>
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