Файл: inc/tools/whois_checker/lib/whois.ip.lib.php
Строк: 87
<?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.
*/
//-----------------------------------------------------------------
// Check if ip adddress is valid
function validip($ip)
{
if (empty($ip))
return false;
if ((ip2long($p) == -1) or (ip2long($p) === false))
return false;
$reserved_ips = array (
array('0.0.0.0','2.255.255.255'),
array('10.0.0.0','10.255.255.255'),
array('127.0.0.0','127.255.255.255'),
array('169.254.0.0','169.254.255.255'),
array('172.16.0.0','172.31.255.255'),
array('192.0.2.0','192.0.2.255'),
array('192.168.0.0','192.168.255.255'),
array('255.255.255.0','255.255.255.255')
);
foreach ($reserved_ips as $r) {
$min = ip2long($r[0]);
$max = ip2long($r[1]);
if ((ip2long($ip) >= $min) && (ip2long($ip) <= $max)) return false;
}
return true;
}
//-----------------------------------------------------------------
// Get real client ip address
function getclientip()
{
if (!empty($_SERVER['HTTP_CLIENT_IP']) && validip($_SERVER['HTTP_CLIENT_IP']))
return $_SERVER['HTTP_CLIENT_IP'];
if (!empty($_SERVER['HTTP_X_FORWARDED_FOR']))
foreach (explode(',',$_SERVER['HTTP_X_FORWARDED_FOR']) as $ip)
if (validip(trim($ip)))
return $ip;
if (!empty($_SERVER['HTTP_X_FORWARDED']) && validip($_SERVER['HTTP_X_FORWARDED']))
return $_SERVER['HTTP_X_FORWARDED'];
if (!empty($_SERVER['HTTP_FORWARDED_FOR']) && validip($_SERVER['HTTP_FORWARDED_FOR']))
return $_SERVER['HTTP_FORWARDED_FOR'];
if (!empty($_SERVER['HTTP_FORWARDED']) && validip($_SERVER['HTTP_FORWARDED']))
return $_SERVER['HTTP_FORWARDED'];
if (!empty($_SERVER['HTTP_X_FORWARDED']) && validip($_SERVER['HTTP_X_FORWARDED']))
return $_SERVER['HTTP_X_FORWARDED'];
return $_SERVER['REMOTE_ADDR'];
}
//-----------------------------------------------------------------
// Convert from CIDR to net range
function cidr_conv($net)
{
$start = strtok($net, '/');
$n = 3-substr_count($net, '.');
if ($n > 0)
{
for ($i = $n; $i > 0; $i--)
$start.= '.0';
}
$bits1 = str_pad(decbin(ip2long($start)), 32, '0', 'STR_PAD_LEFT');
$net = pow(2, (32-substr(strstr($net, '/'), 1))) - 1;
$bits2 = str_pad(decbin($net), 32, '0', 'STR_PAD_LEFT');
$final = '';
for ($i = 0; $i < 32; $i++)
{
if ($bits1[$i] == $bits2[$i])
$final.= $bits1[$i];
if ($bits1[$i] == 1 and $bits2[$i] == 0)
$final.= $bits1[$i];
if ($bits1[$i] == 0 and $bits2[$i] == 1)
$final.= $bits2[$i];
}
return $start." - ".long2ip(bindec($final));
}
?>