librenms-librenms/includes/discovery/toner.inc.php

<?php

if ($config['enable_printers'])
{
  $valid_toner = array();

  echo("Toner : ");

  if ($device['os_group'] == 'printer')
  {
    $oids = trim(snmp_walk($device, "SNMPv2-SMI::mib-2.43.12.1.1.2.1 ", "-OsqnU"));
    if (!$oids)
    {
      $oids = trim(snmp_walk($device, "SNMPv2-SMI::mib-2.43.11.1.1.2.1 ", "-OsqnU"));
    }
    if ($debug) { echo($oids."\n"); }
    if ($oids) echo("Jetdirect ");
    foreach (explode("\n", $oids) as $data)
    {
      $data = trim($data);
      if ($data)
      {
        list($oid,$role) = explode(" ", $data);
        $split_oid = explode('.',$oid);
        $index = $split_oid[count($split_oid)-1];
        if (is_numeric($role))
        {
          $toner_oid     = ".1.3.6.1.2.1.43.11.1.1.9.1.$index";
          $descr_oid     = ".1.3.6.1.2.1.43.11.1.1.6.1.$index";
          $capacity_oid  = ".1.3.6.1.2.1.43.11.1.1.8.1.$index";
          $descr         = trim(str_replace("\n","",str_replace('"','',snmp_get($device, $descr_oid, "-Oqv"))));
          if ($descr != "")
          {
            $current       = snmp_get($device, $toner_oid, "-Oqv");
            $capacity      = snmp_get($device, $capacity_oid, "-Oqv");
            $current       = $current / $capacity * 100;
            $type          = "jetdirect";
            if (isHexString($descr)) { $descr = snmp_hexstring($descr); }
            discover_toner($valid_toner,$device, $toner_oid, $index, $type, $descr, $capacity, $current);
          }
        }
      }
    }
  }

  ## Delete removed toners
  if ($debug) { echo("\n Checking ... \n"); print_r($valid_toner); }

  $sql = "SELECT * FROM toner WHERE device_id = '".$device['device_id']."'";
  if ($query = mysql_query($sql))
  {
    while ($test_toner = mysql_fetch_array($query))
    {
      $toner_index = $test_toner['toner_index'];
      $toner_type = $test_toner['toner_type'];
      if (!$valid_toner[$toner_type][$toner_index])
      {
        echo("-");
        mysql_query("DELETE FROM `toner` WHERE toner_id = '" . $test_toner['toner_id'] . "'");
      }
    }
  }

  unset($valid_toner); echo("\n");
} # if ($config['enable_printers'])

?>