<?php

# NS-ROOT-MIB::vsvrName."observium" = STRING: "observium"
# NS-ROOT-MIB::vsvrIpAddress."observium" = IpAddress: 195.78.84.141
# NS-ROOT-MIB::vsvrPort."observium" = INTEGER: 80
# NS-ROOT-MIB::vsvrType."observium" = INTEGER: http(0)
# NS-ROOT-MIB::vsvrState."observium" = INTEGER: up(7)
# NS-ROOT-MIB::vsvrCurClntConnections."observium" = Gauge32: 18
# NS-ROOT-MIB::vsvrCurSrvrConnections."observium" = Gauge32: 0
# NS-ROOT-MIB::vsvrSurgeCount."observium" = Counter32: 0
# NS-ROOT-MIB::vsvrTotalRequests."observium" = Counter64: 64532
# NS-ROOT-MIB::vsvrTotalRequestBytes."observium" = Counter64: 22223153
# NS-ROOT-MIB::vsvrTotalResponses."observium" = Counter64: 64496
# NS-ROOT-MIB::vsvrTotalResponseBytes."observium" = Counter64: 1048603453
# NS-ROOT-MIB::vsvrTotalPktsRecvd."observium" = Counter64: 629637
# NS-ROOT-MIB::vsvrTotalPktsSent."observium" = Counter64: 936237
# NS-ROOT-MIB::vsvrTotalSynsRecvd."observium" = Counter64: 43130
# NS-ROOT-MIB::vsvrCurServicesDown."observium" = Gauge32: 0
# NS-ROOT-MIB::vsvrCurServicesUnKnown."observium" = Gauge32: 0
# NS-ROOT-MIB::vsvrCurServicesOutOfSvc."observium" = Gauge32: 0
# NS-ROOT-MIB::vsvrCurServicesTransToOutOfSvc."observium" = Gauge32: 0
# NS-ROOT-MIB::vsvrCurServicesUp."observium" = Gauge32: 0
# NS-ROOT-MIB::vsvrTotMiss."observium" = Counter64: 0
# NS-ROOT-MIB::vsvrRequestRate."observium" = STRING: "0"
# NS-ROOT-MIB::vsvrRxBytesRate."observium" = STRING: "248"
# NS-ROOT-MIB::vsvrTxBytesRate."observium" = STRING: "188"
# NS-ROOT-MIB::vsvrSynfloodRate."observium" = STRING: "0"
# NS-ROOT-MIB::vsvrIp6Address."observium" = STRING: 0:0:0:0:0:0:0:0
# NS-ROOT-MIB::vsvrTotHits."observium" = Counter64: 64537
# NS-ROOT-MIB::vsvrTotSpillOvers."observium" = Counter32: 0
# NS-ROOT-MIB::vsvrTotalClients."observium" = Counter64: 43023
# NS-ROOT-MIB::vsvrClientConnOpenRate."observium" = STRING: "0"

if ($device['os'] == "netscaler")
{
  echo("Netscaler VServers\n");

  $oids_gauge   = array('vsvrCurClntConnections','vsvrCurSrvrConnections');

  $oids_counter = array('vsvrSurgeCount','vsvrTotalRequests','vsvrTotalRequestBytes','vsvrTotalResponses','vsvrTotalResponseBytes','vsvrTotalPktsRecvd',
                        'vsvrTotalPktsSent','vsvrTotalSynsRecvd','vsvrTotMiss','vsvrTotHits','vsvrTotSpillOvers','vsvrTotalClients');

  $oids = array_merge($oids_gauge, $oids_counter);

  unset($snmpstring, $rrdupdate, $snmpdata, $snmpdata_cmd, $rrd_create);

  $rrd_create = $config['rrd_rra'];

  foreach ($oids_gauge as $oid)
  {
    $oid_ds = truncate(str_replace("vsvr", "", $oid), 19, '');
    $rrd_create .= " DS:$oid_ds:GAUGE:600:U:100000000000";
  }

  foreach ($oids_counter as $oid)
  {
    $oid_ds = truncate(str_replace("vsvr", "", $oid), 19, '');
    $rrd_create .= " DS:$oid_ds:COUNTER:600:U:100000000000";
  }

  $vsvr_array = snmpwalk_cache_oid($device, "vserverEntry", array(), "NS-ROOT-MIB");

  $vsvr_db    = dbFetchRows("SELECT * FROM `netscaler_vservers` WHERE `device_id` = ?", array($device['device_id']));
  foreach ($vsvr_db as $vsvr) { $vsvrs[$vsvr['vsvr_name']] = $vsvr; print_r($vsvr); }
  if ($debug) { print_r($vsvrs); }

  foreach ($vsvr_array as $index => $vsvr)
  {
    if (isset($vsvr['vsvrName']))
    {
      $vsvr_exist[$vsvr['vsvrName']] = 1;
      $rrd_file = $config['rrd_dir'] . "/" . $device['hostname'] . "/netscaler-vsvr-".safename($vsvr['vsvrName']).".rrd";
      $rrdupdate = "N";

      foreach ($oids as $oid)
      {
        if (is_numeric($vsvr[$oid]))
        {
          $rrdupdate .= ":".$vsvr[$oid];
        } else {
          $rrdupdate .= ":U";
        }
      }

      echo(str_pad($vsvr['vsvrName'], 25) . " | " . str_pad($vsvr['vsvrType'],5) . " | " .  str_pad($vsvr['vsvrState'],6) ." | ". str_pad($vsvr['vsvrIpAddress'],16) ." | ". str_pad($vsvr['vsvrPort'],5));
      echo(" | " . str_pad($vsvr['vsvrRequestRate'],8) . " | " . str_pad($vsvr['vsvrRxBytesRate']."B/s", 8)." | ". str_pad($vsvr['vsvrTxBytesRate']."B/s", 8));

      $db_update = array('vsvr_ip' => $vsvr['vsvrIpAddress'], 'vsvr_port' => $vsvr['vsvrPort'], 'vsvr_state' => $vsvr['vsvrState'], 'vsvr_type' => $vsvr['vsvrType'],
                         'vsvr_req_rate' => $vsvr['RequestRate'], 'vsvr_bps_in' => $vsvr['vsvrRxBytesRate'], 'vsvr_bps_out' => $vsvr['vsvrTxBytesRate']);

     if (!is_array($vsvrs[$vsvr['vsvrName']]))
     {
       $db_insert = array_merge(array('device_id' => $device['device_id'], 'vsvr_name' => $vsvr['vsvrName']), $db_update);
       $vsvr_id = dbInsert($db_insert, 'netscaler_vservers'); echo(" +");
     } else {
       $updated  = dbUpdate($db_update, 'netscaler_vservers', '`vsvr_id` = ?', array($vsvrs[$vsvr['vsvrName']]['vsvr_id']));
       echo(" U");
     }

     if (!file_exists($rrd_file)) { rrdtool_create($rrd_file, $rrd_create); }
     rrdtool_update($rrd_file, $rrdupdate);

     echo("\n");
    }

  }

  if ($debug) { print_r($vsvr_exist); }

  foreach ($vsvrs as $db_name => $db_id)
  {
    if (!$vsvr_exist[$db_name])
    {
      echo("-".$db_name);
      dbDelete('netscaler_vservers', "`vsvr_id` =  ?", array($db_id));
    }
  }
}

?>