<?php
/**
* This file implements the IPRangeCache class.
*
* This file is part of the evoCore framework - {@link http://evocore.net/}
* See also {@link https://github.com/b2evolution/b2evolution}.
*
* @license GNU GPL v2 - {@link http://b2evolution.net/about/gnu-gpl-license}
*
* @copyright (c)2003-2020 by Francois Planque - {@link http://fplanque.com/}
* Parts of this file are copyright (c)2004-2006 by Daniel HAHLER - {@link http://thequod.de/contact}.
*
* @package evocore
*/
if( !defined('EVO_MAIN_INIT') ) die( 'Please, do not access this page directly.' );
load_class( '_core/model/dataobjects/_dataobjectcache.class.php', 'DataObjectCache' );
load_class( 'antispam/model/_iprange.class.php', 'IPRange' );
/**
* IP Range Cache Class
*
* @package evocore
*/
class IPRangeCache extends DataObjectCache
{
/**
* Lazy filled index of IP addresses
*/
var $ip_index = array();
/**
* Constructor
*
* @param string object type of elements in Cache
* @param string Name of the DB table
* @param string Prefix of fields in the table
* @param string Name of the ID field (including prefix)
*/
function __construct( $objType = 'IPRange', $dbtablename = 'T_antispam__iprange', $dbprefix = 'aipr_', $dbIDname = 'aipr_ID' )
{
parent::__construct( $objType, false, $dbtablename, $dbprefix, $dbIDname );
}
/**
* Get an object from cache by IP address
*
* Load into cache if necessary
*
* @param string IP address
* @param boolean false if you want to return false on error
* @param boolean true if function should die on empty/null
*/
function & get_by_ip( $req_ip, $halt_on_error = false, $halt_on_empty = false )
{
global $DB, $Debuglog;
if( !isset( $this->ip_index[ $req_ip ] ) )
{ // not yet in cache:
$IP = ip2int( $req_ip );
$SQL = new SQL( 'Get ID of IP range by IP address' );
$SQL->SELECT( 'aipr_ID' );
$SQL->FROM( 'T_antispam__iprange' );
$SQL->WHERE( 'aipr_IPv4start <= '.$DB->quote( $IP ) );
$SQL->WHERE_and( 'aipr_IPv4end >= '.$DB->quote( $IP ) );
$IPRange_ID = $DB->get_var( $SQL );
// Get object from IPRangeCache bi ID
$IPRange = $this->get_by_ID( $IPRange_ID, $halt_on_error, $halt_on_empty );
if( $IPRange )
{ // It is in IPRangeCache
$this->ip_index[ $req_ip ] = $IPRange;
}
else
{ // not in the IPRangeCache
if( $halt_on_error ) debug_die( "Requested $this->objtype does not exist!" );
$this->ip_index[ $req_ip ] = false;
}
}
else
{
$Debuglog->add( "Retrieving <strong>$this->objtype($req_ip)</strong> from cache" );
}
return $this->ip_index[ $req_ip ];
}
}
?>