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<?php
/**
* $Id$
*
* Author: Andreas Korthaus, akorthaus@web.de
* Enhancements: David Danier, david.danier@team23.de
* Project: Serverstats, http://serverstats.berlios.de/
* License: GPL v2 or later (http://www.gnu.org/licenses/gpl.html)
*
* Copyright (C) 2005 Andreas Korthaus
*
* 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, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*
* Requirements:
*
* In order to use this source you have to configure Apache/mod_status
* like that:
*
* <Location /server-status>
* SetHandler server-status
* Order deny,allow
* Deny from all
* Allow from 127.0.0.1
* </Location>
* ExtendedStatus On
*/
class apache extends source implements source_rrd
{
private $url_serverstatus;
private $show;
private $data;
public function __construct($url_serverstatus = 'http://localhost/server-status?auto', $show = null, $psshow = null)
{
// What lines should be saved
// (and how to call them)
if (!isset($show))
{
$this->show = array(
'Total Accesses' => 'requests',
'Total kBytes' => 'kilobytes',
'BytesPerReq' => 'bytesperreq',
'CPULoad' => 'cpuload',
'BusyWorkers' => 'busyprocs',
'IdleWorkers' => 'idleprocs'
);
}
// What values should be saved as per second fields
// (and the changed name)
if (!isset($psshow))
{
$this->psshow = array(
'requests' => 'requestsps',
'kilobytes' => 'kilobytesps'
);
}
$this->url_serverstatus = $url_serverstatus;
}
public function refreshData()
{
if (($lines = @file($this->url_serverstatus)) === false)
{
throw new Exception('Error while reading Apache-status (perhaps file-access is forbidden?)');
return;
}
foreach ($lines as $line)
{
foreach ($this->show as $apachename => $dsname)
{
$apachename = preg_quote($apachename, '/');
if (preg_match('/^' . $apachename . '\s*:\s*(.*)$/', $line, $parts))
{
$this->data[$dsname] = $parts[1];
break;
}
}
}
}
public function initRRD(rrd $rrd)
{
foreach ($this->show as $dsname)
{
$rrd->addDatasource($dsname, 'GAUGE');
if (isset($this->psshow[$dsname]))
{
$rrd->addDatasource($this->psshow[$dsname], 'DERIVE', null, 0);
}
}
}
public function fetchValues()
{
$values = array();
foreach ($this->data as $dsname => $value)
{
$values[$dsname] = $value;
if (isset($this->psshow[$dsname]))
{
$values[$this->psshow[$dsname]] = $value;
}
}
return $values;
}
}
?>
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