Viewing file:  lib-acl.inc.php (6.55 KB) -rwxr-xr-x
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
<?php // $Revision: 1.8 $
/************************************************************************/
/* phpAdsNew 2 */
/* =========== */
/* */
/* Copyright (c) 2001 by the phpAdsNew developers */
/* http://sourceforge.net/projects/phpadsnew */
/* */
/* 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. */
/************************************************************************/
/*********************************************************/
/* Check if the ACL is valid */
/*********************************************************/
function phpAds_aclCheck($row, $source)
{
global $phpAds_config;
$bannerid = $row['bannerid'];
// Execute Query
$res = phpAds_dbQuery("SELECT * FROM ".$phpAds_config['tbl_acls']."
WHERE bannerid = $bannerid ORDER by acl_order");
if (phpAds_dbNumRows($res) == 0)
{
// No ACLs, show banner
return(true);
}
// Check all ACLs
$expression = '';
$i = 0;
while ($aclrow = phpAds_dbFetchArray($res))
{
switch ($aclrow['acl_type'])
{
case 'clientip':
$result = phpAds_aclCheckClientIP($aclrow);
break;
case 'useragent':
$result = phpAds_aclCheckUseragent($aclrow);
break;
case 'language':
$result = phpAds_aclCheckLanguage($aclrow);
break;
case 'weekday':
$result = phpAds_aclCheckWeekday($aclrow);
break;
case 'domain':
$result = phpAds_aclCheckDomain($aclrow);
break;
case 'source':
$result = phpAds_aclCheckSource($aclrow, $source);
break;
case 'time':
$result = phpAds_aclCheckTime($aclrow);
break;
default:
return(0);
}
if ($i == 0)
$expression .= ($result == true ? 'tr'.'ue' : 'fa'.'lse').' ';
else
$expression .= $aclrow['acl_con'].' '.($result == true ? 'tr'.'ue' : 'fa'.'lse').' ';
$i++;
}
// Evaluate expression and return
eval('$result = ('.$expression.');');
return($result);
}
/*********************************************************/
/* Check if the Weekday ACL is valid */
/*********************************************************/
function phpAds_aclCheckWeekday($aclrow)
{
$data = $aclrow['acl_data'];
$day = date('w');
if ($data == '')
return (true);
$expression = ($data == "*" || $data == $day || in_array ($day, explode(',', $data)));
$operator = $aclrow['acl_ad'] == 'allow';
return ($expression == $operator);
}
/*********************************************************/
/* Check if the Useragent ACL is valid */
/*********************************************************/
function phpAds_aclCheckUseragent($aclrow)
{
$data = $aclrow['acl_data'];
$agent = $GLOBALS['HTTP_USER_AGENT'];
if ($data == '')
return (true);
$expression = ($data == "*" || eregi($data, $agent));
$operator = $aclrow['acl_ad'] == 'allow';
return ($expression == $operator);
}
/*********************************************************/
/* Check if the Client IP ACL is valid */
/*********************************************************/
function phpAds_aclCheckClientip($aclrow)
{
$data = $aclrow['acl_data'];
$host = $GLOBALS['REMOTE_ADDR'];
if ($data == '')
return (true);
if (!strpos($data, '/'))
{
$net = explode('.', $data);
for ($i=0;$i<sizeof($net);$i++)
{
if ($net[$i] == '*')
{
$net[$i] = 0;
$mask[$i] = 0;
}
else
$mask[$i] = 255;
}
$pnet = pack('C4', $net[0], $net[1], $net[2], $net[3]);
$pmask = pack('C4', $mask[0], $mask[1], $mask[2], $mask[3]);
}
else
{
list ($net, $mask) = explode('/', $data);
$net = explode('.', $net);
$pnet = pack('C4', $net[0], $net[1], $net[2], $net[3]);
$mask = explode('.', $mask);
$pmask = pack('C4', $mask[0], $mask[1], $mask[2], $mask[3]);
}
$host = explode('.', $host);
$phost = pack('C4', $host[0], $host[1], $host[2], $host[3]);
$expression = ($data == "*" || ($phost & $pmask) == $pnet);
$operator = ($aclrow['acl_ad'] == 'allow');
return ($expression == $operator);
}
/*********************************************************/
/* Check if the Domain ACL is valid */
/*********************************************************/
function phpAds_aclCheckDomain($aclrow)
{
$data = $aclrow['acl_data'];
$host = $GLOBALS['REMOTE_HOST'];
if ($data == '')
return (true);
$domain = substr($host,-(strlen($data)+1));
$expression = ($data == "*" || strtolower($domain) == strtolower(".$data")) ;
$operator = $aclrow['acl_ad'] == 'allow';
return ($expression == $operator);
}
/*********************************************************/
/* Check if the Language ACL is valid */
/*********************************************************/
function phpAds_aclCheckLanguage($aclrow)
{
$data = $aclrow['acl_data'];
$source = $GLOBALS['HTTP_ACCEPT_LANGUAGE'];
if ($data == '')
return (true);
$expression = ($data == "*" || eregi("^".$data, $source));
$operator = $aclrow['acl_ad'] == 'allow';
return ($expression == $operator);
}
/*********************************************************/
/* Check if the Source ACL is valid */
/*********************************************************/
function phpAds_aclCheckSource($aclrow, $source)
{
$data = $aclrow['acl_data'];
if ($data == '')
return (true);
$expression = ($data == "*" || strtolower($source) == strtolower($data));
$operator = $aclrow['acl_ad'] == 'allow';
return ($expression == $operator);
}
/*********************************************************/
/* Check if the Time ACL is valid */
/*********************************************************/
function phpAds_aclCheckTime($aclrow)
{
$data = $aclrow['acl_data'];
$time = date('G');
if ($data == '')
return (true);
$expression = ($data == "*" || $data == $time || in_array ($time, explode(',', $data)));
$operator = $aclrow['acl_ad'] == 'allow';
return ($expression == $operator);
}
?>
|