<?php
class filterSystemByIp  extends filterLDAP{

  static function query($base, $scope, $filter, $attributes, $category, $objectStorage= "")
  {
    
    // IP Range selection 
    $filterByIP = preg_match("/__FilterByIP__/", $filter);
    $filter = preg_replace("/__FilterByIP__/","",$filter);
    $ipstart = "";
    $ipstop = "";
    if(preg_match("/__IPSTART__=/", $filter)){
      $ipstart = trim(preg_replace("/^.*__IPSTART__=([^_]*)__.*$/","\\1",$filter),"*");
    }
    if(preg_match("/__IPSTOP__=/", $filter)){
      $ipstop = trim(preg_replace("/^.*__IPSTOP__=([^_]*)__.*$/","\\1",$filter),"*");
    }
    

    // Get entries 
    $filter= preg_replace("/__IPSTART.*$/","",$filter);
    $entries = filterLDAP::query($base, $scope, $filter, $attributes, $category, $objectStorage);
    

    // Filter entries by IP-Address
    if($filterByIP){
      foreach($entries as $key => $entry){ 
        if(!isset($entry['ipHostNumber'])){
          unset($entries[$key]);
          continue;
        }
        if(!tests::is_in_ip_range($ipstart,$ipstop, $entry['ipHostNumber'][0])){
          unset($entries[$key]);
          continue;
        }
      }
    }
    return(array_values($entries));
  }

}
?>