From cd94ef34134d8f06af83ec97119018b4e80346a0 Mon Sep 17 00:00:00 2001
From: Pim van den Berg
Date: Sun, 20 Sep 2009 13:36:25 +0200
Subject: initial import of cgp

Collectd Graph Panel is a frontend for Collectd written in PHP.

The goal of CGP is to provide an easy-to-use frontend for Collectd,
starting with page that shows an overview of all the hosts you are
managing with Collectd.

In this initial import there is support for the plugins that are default
enabled in Collectd. The supported plugins are located in the plugin
directory.
---
 .htaccess                     |   2 +
 conf/.gitignore               |   1 +
 conf/common.inc.php           |   8 ++
 conf/config.php               |  19 +++++
 detail.php                    |  52 +++++++++++++
 graph.php                     |  39 ++++++++++
 host.php                      |  43 +++++++++++
 inc/collectd.inc.php          | 176 ++++++++++++++++++++++++++++++++++++++++++
 inc/html.inc.php              |  45 +++++++++++
 inc/rrdtool.class.php         |  25 ++++++
 index.php                     |  30 +++++++
 layout/style.css              |  23 ++++++
 plugin/cpu.php                |  65 ++++++++++++++++
 plugin/df.php                 |  42 ++++++++++
 plugin/disk.php               |  63 +++++++++++++++
 plugin/entropy.php            |  37 +++++++++
 plugin/interface.php          |  54 +++++++++++++
 plugin/irq.php                |  40 ++++++++++
 plugin/load.php               |  41 ++++++++++
 plugin/memory.php             |  53 +++++++++++++
 plugin/processes.php          |  58 ++++++++++++++
 plugin/sensors.php            |  58 ++++++++++++++
 plugin/swap.php               |  50 ++++++++++++
 plugin/users.php              |  37 +++++++++
 type/Default.class.php        | 127 ++++++++++++++++++++++++++++++
 type/GenericIO.class.php      |  59 ++++++++++++++
 type/GenericStacked.class.php |  65 ++++++++++++++++
 27 files changed, 1312 insertions(+)
 create mode 100644 .htaccess
 create mode 100644 conf/.gitignore
 create mode 100644 conf/common.inc.php
 create mode 100644 conf/config.php
 create mode 100644 detail.php
 create mode 100644 graph.php
 create mode 100644 host.php
 create mode 100644 inc/collectd.inc.php
 create mode 100644 inc/html.inc.php
 create mode 100644 inc/rrdtool.class.php
 create mode 100644 index.php
 create mode 100644 layout/style.css
 create mode 100644 plugin/cpu.php
 create mode 100644 plugin/df.php
 create mode 100644 plugin/disk.php
 create mode 100644 plugin/entropy.php
 create mode 100644 plugin/interface.php
 create mode 100644 plugin/irq.php
 create mode 100644 plugin/load.php
 create mode 100644 plugin/memory.php
 create mode 100644 plugin/processes.php
 create mode 100644 plugin/sensors.php
 create mode 100644 plugin/swap.php
 create mode 100644 plugin/users.php
 create mode 100644 type/Default.class.php
 create mode 100644 type/GenericIO.class.php
 create mode 100644 type/GenericStacked.class.php

diff --git a/.htaccess b/.htaccess
new file mode 100644
index 0000000..9e0a727
--- /dev/null
+++ b/.htaccess
@@ -0,0 +1,2 @@
+RewriteEngine On
+RewriteRule     ^.git(ignore|/) - [F,L]
diff --git a/conf/.gitignore b/conf/.gitignore
new file mode 100644
index 0000000..529bf01
--- /dev/null
+++ b/conf/.gitignore
@@ -0,0 +1 @@
+config.local.php
diff --git a/conf/common.inc.php b/conf/common.inc.php
new file mode 100644
index 0000000..c4884d6
--- /dev/null
+++ b/conf/common.inc.php
@@ -0,0 +1,8 @@
+<?php
+
+require_once 'config.php';
+
+$CONFIG['webdir'] = preg_replace('/\/[a-z\.]+$/', '', $_SERVER['SCRIPT_FILENAME']);
+$CONFIG['weburl'] = preg_replace('/\/[a-z\.]+$/', '', $_SERVER['SCRIPT_NAME']);
+
+?>
diff --git a/conf/config.php b/conf/config.php
new file mode 100644
index 0000000..4fb7aec
--- /dev/null
+++ b/conf/config.php
@@ -0,0 +1,19 @@
+<?php
+
+$CONFIG['datadir'] = '/var/lib/collectd/rrd';
+
+#$CONFIG['cat']['nethuis'] = array('pepper');
+$CONFIG['overview'] = array('load', 'cpu', 'memory', 'swap');
+
+$CONFIG['groupby'] = array(
+	'cpu' => 'type',
+	'irq' => 'type',
+	'memory' => 'type',
+	'processes' => 'type',
+	'swap' => 'type',
+	'sensors' => 'type',
+);
+
+include 'config.local.php';
+
+?>
diff --git a/detail.php b/detail.php
new file mode 100644
index 0000000..e12334d
--- /dev/null
+++ b/detail.php
@@ -0,0 +1,52 @@
+<?php
+
+require_once 'inc/html.inc.php';
+require_once 'inc/collectd.inc.php';
+
+$host = $_GET['h'];
+$plugin = $_GET['p'];
+$pinstance = $_GET['pi'];
+$type = $_GET['t'];
+$tinstance = $_GET['ti'];
+$width = $_GET['x'];
+$heigth = $_GET['y'];
+$seconds = $_GET['s'];
+
+html_start();
+
+printf('<h1><a href="%s">&laquo;</a> %s</h1>'."\n",
+	$CONFIG['weburl'].'/host.php?h='.htmlentities($host), $host
+);
+
+$term = array(
+	'2hour'	=> 3600*2,
+	'6hour'	=> 3600*6,
+	'day'	=> 86400,
+	'week'	=> 86400*7,
+	'month'	=> 86400*31,
+	'quarter'=> 86400*31*3,
+	'year'	=> 86400*365,
+);
+
+$args = $_GET;
+foreach($term as $key => $s) {
+	$args['s'] = $s;
+	printf('<a href="%s/%s">%s</a>'."\n",
+		$CONFIG['weburl'], build_url('detail.php', $args), $key);
+}
+
+print "<br>\n";
+
+$plugins = collectd_plugins($host);
+
+if(!$plugins) {
+	echo "Unknown host\n";
+	return false;
+}
+
+# show graph
+printf('<img src="%s/%s">'."\n", $CONFIG['weburl'], build_url('graph.php', $_GET));
+
+html_end();
+
+?>
diff --git a/graph.php b/graph.php
new file mode 100644
index 0000000..4747552
--- /dev/null
+++ b/graph.php
@@ -0,0 +1,39 @@
+<?php
+
+require_once 'conf/common.inc.php';
+
+$host = $_GET['h'];
+$plugin = $_GET['p'];
+$pinstance = $_GET['pi'];
+$type = $_GET['t'];
+$tinstance = $_GET['ti'];
+$width = $_GET['x'];
+$heigth = $_GET['y'];
+$seconds = $_GET['s'];
+
+if (!preg_match('/^[a-z]+$/', $plugin)) {
+	die_img('Error: plugin contains unknown characters.');
+	exit;
+}
+
+if (!file_exists($CONFIG['webdir']."/plugin/$plugin.php")) {
+	die_img(sprintf('Error: plugin not available (%s).', $plugin));
+	exit;
+}
+
+include $CONFIG['webdir']."/plugin/$plugin.php";
+
+
+function die_img($msg) {
+	header("Content-Type: image/png");
+	$image = ImageCreatetruecolor(300, 30);
+	$black = ImageColorAllocate($image, 0, 0, 0);
+	$white = ImageColorAllocate($image, 255, 255, 255);
+	imagefill($image, 0, 0, $white);
+	imagerectangle($image, 0, 0, 299, 29, $black);
+	imagestring($image, 2, 10, 9, $msg, $black);
+	imagepng($image);
+	imagedestroy($image);
+}
+
+?>
diff --git a/host.php b/host.php
new file mode 100644
index 0000000..22112e6
--- /dev/null
+++ b/host.php
@@ -0,0 +1,43 @@
+<?php
+
+require_once 'inc/html.inc.php';
+require_once 'inc/collectd.inc.php';
+
+$host = $_GET['h'];
+$splugin = $_GET['p'];
+
+html_start();
+
+printf('<h1><a href="%s">&laquo;</a> %s</h1>'."\n", $CONFIG['weburl'], $host);
+
+$plugins = collectd_plugins($host);
+
+if(!$plugins) {
+	echo "Unknown host\n";
+	return false;
+}
+
+# first the ones defined in overview
+foreach($CONFIG['overview'] as $plugin) {
+	if (in_array($plugin, $plugins)) {
+		printf("<h2>[-] %s</h2>\n", $plugin);
+		graphs_from_plugin($host, $plugin);
+	}
+}
+
+# other plugins
+foreach($plugins as $plugin) {
+	if (!in_array($plugin, $CONFIG['overview'])) {
+		$url = sprintf('<a href="%s/host.php?h=%s&p=%s">%s</a>'."\n", $CONFIG['weburl'], $host, $plugin, $plugin);
+		if ($splugin == $plugin) {
+			printf("<h2>[-] %s</h2>\n", $url);
+			graphs_from_plugin($host, $plugin);
+		} else {
+			printf("<h2>[+] %s</h2>\n", $url);
+		}
+	}
+}
+
+html_end();
+
+?>
diff --git a/inc/collectd.inc.php b/inc/collectd.inc.php
new file mode 100644
index 0000000..2724c05
--- /dev/null
+++ b/inc/collectd.inc.php
@@ -0,0 +1,176 @@
+<?php
+
+require_once 'conf/common.inc.php';
+
+# returns an array of all collectd hosts
+function collectd_hosts() {
+	global $CONFIG;
+
+	if (!is_dir($CONFIG['datadir']))
+		return false;
+
+	$dir = scandir($CONFIG['datadir']);
+	foreach($dir as $k => $v) {
+		if(!is_dir($CONFIG['datadir'].'/'.$v) || $v == '.' || $v == '..')
+			unset($dir[$k]);
+	}
+	return($dir);
+}
+
+# returns an array of plugins/pinstances/types/tinstances
+function collectd_plugindata($host) {
+	global $CONFIG;
+
+	if (!is_dir($CONFIG['datadir'].'/'.$host))
+		return false;
+
+	chdir($CONFIG['datadir'].'/'.$host);
+	$files = glob("*/*.rrd");
+	if (!$files)
+		return false;
+	
+	$data;
+	$i = 0;
+	foreach($files as $item) {
+		unset($part);
+
+		# split item by plugin/type
+		$part = explode('/', $item);
+		$part[1] = preg_replace('/\.rrd/', '', $part[1]);
+
+		# plugin
+		$data[$i]['p'] = preg_replace('/-.+/', '', $part[0]);
+
+		# plugin instance
+		if(preg_match('/-/', $part[0]))
+			$data[$i]['pi'] = preg_replace('/^[a-z_]+\-/', '', $part[0]);
+		
+		# type
+		$data[$i]['t'] = preg_replace('/-.+/', '', $part[1]);
+
+		# type instance
+		if(preg_match('/-/', $part[1]))
+			$data[$i]['ti'] = preg_replace('/^[a-z_]+\-/', '', $part[1]);
+
+		$i++;
+	}
+	return($data);
+}
+
+# returns an array of all plugins of a host
+function collectd_plugins($host) {
+	$plugindata = collectd_plugindata($host);
+
+	$plugins = array();
+	foreach ($plugindata as $item) {
+		if (!in_array($item['p'], $plugins))
+			$plugins[] = $item['p'];
+	}
+	
+	return $plugins;
+}
+
+# returns an array of all pi/t/ti of an plugin
+function collectd_plugindetail($host, $plugin, $detail, $where=NULL) {
+	$details = array('pi', 't', 'ti');
+	if (!in_array($detail, $details))
+		return false;
+
+	$plugindata = collectd_plugindata($host);
+
+	$return = array();
+	foreach ($plugindata as $item) {
+		if ($item['p'] == $plugin && !in_array($item[$detail], $return) && isset($item[$detail])) {
+			if ($where) {
+				$add = true;
+				# add detail to returnvalue if all where is true
+				foreach($where as $key => $value) {
+					if ($item[$key] != $value)
+						$add = false;
+				}
+				if ($add)
+					$return[] = $item[$detail];
+			} else {
+				$return[] = $item[$detail];
+			}
+		}
+	}
+
+	if (empty($return))
+		return false;
+	
+	return $return;
+}
+
+# generate graph url's for a plugin of a host
+function graphs_from_plugin($host, $plugin) {
+	global $CONFIG;
+
+	$pis = collectd_plugindetail($host, $plugin, 'pi');
+	$ts = collectd_plugindetail($host, $plugin, 't');
+	$tis = collectd_plugindetail($host, $plugin, 'ti');
+	if (!$pis) $pis = array('NULL');
+	if (!$tis) $tis = array('NULL');
+
+	foreach($pis as $pi) {
+		if ($CONFIG['groupby'][$plugin] == 'type') {
+			foreach ($ts as $t) {
+				$items = array(
+					'h' => $host,
+					'p' => $plugin,
+					'pi' => $pi,
+					't' => $t
+				);
+				printf('<a href="%s/%s"><img src="%s/%s"></a>'."\n",
+					$CONFIG['weburl'],
+					build_url('detail.php', $items).'&x=800&y=350',
+					$CONFIG['weburl'],
+					build_url('graph.php', $items)
+				);
+			}
+		} else {
+			foreach ($tis as $ti) {
+				foreach ($ts as $t) {
+					$items = array(
+						'h' => $host,
+						'p' => $plugin,
+						'pi' => $pi,
+						't' => $t,
+						'ti' => $ti
+					);
+					printf('<a href="%s/%s"><img src="%s/%s"></a>'."\n",
+						$CONFIG['weburl'],
+						build_url('detail.php', $items).'&x=800&y=350',
+						$CONFIG['weburl'],
+						build_url('graph.php', $items)
+					);
+				}
+			}
+		}
+	}
+}
+
+# generate an url with GET values from $items
+function build_url($base, $items, $s=86400) {
+	if (!is_array($items))
+		return false;
+	
+	if (!is_numeric($s))
+		return false;
+
+	$i=0;
+	foreach ($items as $key => $value) {
+		# don't include empty values
+		if ($value == 'NULL')
+			continue;
+
+		$base .= sprintf('%s%s=%s', $i==0 ? '?' : '&', $key, $value);
+		$i++;
+	}
+	if (!isset($items['s']))
+		$base .= '&s='.$s;
+
+	return $base;
+}
+
+?>
diff --git a/inc/html.inc.php b/inc/html.inc.php
new file mode 100644
index 0000000..d1d2a65
--- /dev/null
+++ b/inc/html.inc.php
@@ -0,0 +1,45 @@
+<?php
+
+function html_start() {
+	echo <<<EOT
+<!DOCTYPE HTML>
+<html>
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+	<title>Collectd Graph Panel</title>
+	<link rel="stylesheet" href="layout/style.css" type="text/css">
+</head>
+<body>
+
+EOT;
+}
+
+function html_end() {
+	echo <<<EOT
+</body>
+</html>
+EOT;
+}
+
+require_once 'conf/common.inc.php';
+require_once 'inc/rrdtool.class.php';
+function host_summary($hosts) {
+	global $CONFIG;
+
+	$rrd = new RRDTool;
+
+	echo "<table class=\"summary\">\n";
+
+	foreach($hosts as $host) {
+		$rrd_info = $rrd->rrd_info($CONFIG['datadir'].'/'.$host.'/load/load.rrd');
+		if (!$rrd_info)
+			continue;
+		printf('<tr><th><a href="%s/host.php?h=%s">%s</a></th><td>%.2f</td><td>%.2f</td><td>%.2f</td></tr>'."\n",
+		$CONFIG['weburl'],$host, $host,
+		$rrd_info["ds[shortterm].last_ds"], $rrd_info["ds[midterm].last_ds"], $rrd_info["ds[longterm].last_ds"]);
+	}
+
+	echo "</table>\n";
+}
+
+?>
diff --git a/inc/rrdtool.class.php b/inc/rrdtool.class.php
new file mode 100644
index 0000000..e1a7b4b
--- /dev/null
+++ b/inc/rrdtool.class.php
@@ -0,0 +1,25 @@
+<?php
+
+class RRDTool {
+	var $width = 175;
+	var $height = 125;
+
+	function rrd_info($rrdfile) {
+		if (file_exists($rrdfile)) {
+			$raw_info = shell_exec('/usr/bin/rrdtool info '.$rrdfile);
+			$raw_array = explode("\n", $raw_info);
+			foreach ($raw_array as $key => $info) {
+				if ($info != "") {
+					$item_info = explode(" = ", $info);
+					$item_info[1] = preg_replace('/"/', '', $item_info[1]);
+					$info_array[$item_info[0]] = $item_info[1];
+				}
+			}
+			return($info_array);
+		} else {
+			return false;
+		}
+	}
+}
+
+?>
diff --git a/index.php b/index.php
new file mode 100644
index 0000000..f937bcc
--- /dev/null
+++ b/index.php
@@ -0,0 +1,30 @@
+<?php
+
+include_once 'conf/common.inc.php';
+include_once 'inc/collectd.inc.php';
+require_once 'inc/html.inc.php';
+
+html_start();
+
+$h = array();
+
+# show all categorized hosts
+foreach($CONFIG['cat'] as $cat => $hosts) {
+	printf("<h1>%s</h1>\n", $cat);
+	host_summary($hosts);
+	$h = array_merge($h, $hosts);
+}
+
+# search for uncategorized hosts
+$chosts = collectd_hosts();
+$uhosts = array_diff($chosts, $h);
+
+# show all uncategorized hosts
+if ($uhosts) {
+	echo "<h1>uncategorized</h1>\n";
+	host_summary($uhosts);
+}
+
+html_end();
+
+?>
diff --git a/layout/style.css b/layout/style.css
new file mode 100644
index 0000000..813f98d
--- /dev/null
+++ b/layout/style.css
@@ -0,0 +1,23 @@
+h1 {
+	font-size: 1.5em;
+	margin: 0.5em 0;
+}
+
+h2 {
+	font-size: 1em;
+}
+
+table.summary th {
+	width: 150px;
+	font-weight: normal;
+	text-align: left;
+}
+
+table.summary td {
+	width: 50px;
+	text-align: right;
+}
+
+img {
+	border: 0;
+}
diff --git a/plugin/cpu.php b/plugin/cpu.php
new file mode 100644
index 0000000..10fbf56
--- /dev/null
+++ b/plugin/cpu.php
@@ -0,0 +1,65 @@
+<?php
+
+# Collectd CPU plugin
+
+require_once $CONFIG['webdir'].'/conf/config.php';
+require_once $CONFIG['webdir'].'/type/GenericStacked.class.php';
+
+## LAYOUT
+# cpu-X/
+# cpu-X/cpu-idle.rrd
+# cpu-X/cpu-interrupt.rrd
+# cpu-X/cpu-nice.rrd
+# cpu-X/cpu-softirq.rrd
+# cpu-X/cpu-steal.rrd
+# cpu-X/cpu-system.rrd
+# cpu-X/cpu-user.rrd
+# cpu-X/cpu-wait.rrd
+
+# grouped
+require_once $CONFIG['webdir'].'/inc/collectd.inc.php';
+$tinstance = collectd_plugindetail($host, $plugin, 'ti');
+
+$obj = new Type_GenericStacked;
+$obj->datadir = $CONFIG['datadir'];
+$obj->path_format = '{host}/{plugin}-{pinstance}/{type}-{tinstance}.rrd';
+$obj->args = array(
+	'host' => $host,
+	'plugin' => $plugin,
+	'pinstance' => $pinstance,
+	'type' => $type,
+	'tinstance' => $tinstance,
+);
+$obj->data_sources = array('value');
+$obj->order = array('idle', 'nice', 'user', 'wait', 'system', 'softirq', 'interrupt', 'steal');
+$obj->ds_names = array(
+	'idle' => 'Idle   ',
+	'nice' => 'Nice   ',
+	'user' => 'User   ',
+	'wait' => 'Wait-IO',
+	'system' => 'System ',
+	'softirq' => 'SoftIRQ',
+	'interrupt' => 'IRQ    ',
+	'steal' => 'Steal  ',
+);
+$obj->colors = array(
+	'idle' => 'e8e8e8',
+	'nice' => '00e000',
+	'user' => '0000ff',
+	'wait' => 'ffb000',
+	'system' => 'ff0000',
+	'softirq' => 'ff00ff',
+	'interrupt' => 'a000a0',
+	'steal' => '000000',
+);
+$obj->width = $width;
+$obj->heigth = $heigth;
+$obj->seconds = $seconds;
+
+$obj->rrd_title = "CPU-$pinstance usage on $host";
+$obj->rrd_vertical = 'Jiffies';
+$obj->rrd_format = '%5.2lf';
+
+$obj->rrd_graph();
+
+?>
diff --git a/plugin/df.php b/plugin/df.php
new file mode 100644
index 0000000..6398249
--- /dev/null
+++ b/plugin/df.php
@@ -0,0 +1,42 @@
+<?php
+
+# Collectd Df plugin
+
+require_once $CONFIG['webdir'].'/conf/config.php';
+require_once $CONFIG['webdir'].'/type/GenericStacked.class.php';
+
+# LAYOUT
+#
+# df/
+# df/df-XXXX.rrd
+
+$obj = new Type_GenericStacked;
+$obj->datadir = $CONFIG['datadir'];
+$obj->path_format = '{host}/{plugin}/{type}-{tinstance}.rrd';
+$obj->args = array(
+	'host' => $host,
+	'plugin' => $plugin,
+	'pinstance' => $pinstance,
+	'type' => $type,
+	'tinstance' => $tinstance,
+);
+$obj->data_sources = array('free', 'used');
+$obj->ds_names = array(
+	'free' => 'Free',
+	'used' => 'Used',
+);
+$obj->colors = array(
+	'free' => '00ff00',
+	'used' => 'ff0000',
+);
+$obj->width = $width;
+$obj->heigth = $heigth;
+$obj->seconds = $seconds;
+
+$obj->rrd_title = "Free space ($tinstance) on $host";
+$obj->rrd_vertical = 'Bytes';
+$obj->rrd_format = '%5.1lf%sB';
+
+$obj->rrd_graph();
+
+?>
diff --git a/plugin/disk.php b/plugin/disk.php
new file mode 100644
index 0000000..298c179
--- /dev/null
+++ b/plugin/disk.php
@@ -0,0 +1,63 @@
+<?php
+
+# Collectd Disk plugin
+
+require_once $CONFIG['webdir'].'/conf/config.php';
+require_once $CONFIG['webdir'].'/type/GenericIO.class.php';
+
+## LAYOUT
+# disk-XXXX/
+# disk-XXXX/disk_merged.rrd
+# disk-XXXX/disk_octets.rrd
+# disk-XXXX/disk_ops.rrd
+# disk-XXXX/disk_time.rrd
+
+$obj = new Type_GenericIO;
+$obj->datadir = $CONFIG['datadir'];
+$obj->path_format = '{host}/{plugin}-{pinstance}/{type}.rrd';
+$obj->args = array(
+	'host' => $host,
+	'plugin' => $plugin,
+	'pinstance' => $pinstance,
+	'type' => $type,
+	'tinstance' => $tinstance,
+);
+$obj->data_sources = array('read', 'write');
+$obj->ds_names = array(
+	'read' => 'Read   ',
+	'write' => 'Written',
+);
+$obj->colors = array(
+	'read' => '0000ff',
+	'write' => '00b000',
+);
+$obj->width = $width;
+$obj->heigth = $heigth;
+$obj->seconds = $seconds;
+switch($type) {
+	case 'disk_merged':
+		$obj->rrd_title = "Disk Merged Operations ($pinstance) on $host";
+		$obj->rrd_vertical = 'Merged operations/s';
+		$obj->rrd_format = '%5.1lf';
+	break;
+	case 'disk_octets':
+		$obj->rrd_title = "Disk Traffic ($pinstance) on $host";
+		$obj->rrd_vertical = 'Bytes per second';
+		$obj->rrd_format = '%5.1lf%s';
+	break;
+	case 'disk_ops':
+		$obj->rrd_title = "Disk Operations ($pinstance) on $host";
+		$obj->rrd_vertical = 'Ops per second';
+		$obj->rrd_format = '%5.1lf';
+	break;
+	case 'disk_time':
+		$obj->rrd_title = "Disk time per operation ($pinstance) on $host";
+		$obj->rrd_vertical = 'Avg. Time/Op';
+		$obj->rrd_format = '%5.1lf%ss';
+		$obj->scale = '0.001';
+	break;
+}
+
+$obj->rrd_graph();
+
+?>
diff --git a/plugin/entropy.php b/plugin/entropy.php
new file mode 100644
index 0000000..55159dc
--- /dev/null
+++ b/plugin/entropy.php
@@ -0,0 +1,37 @@
+<?php
+
+# Collectd Entropy plugin
+
+require_once $CONFIG['webdir'].'/conf/config.php';
+require_once $CONFIG['webdir'].'/type/Default.class.php';
+
+## LAYOUT
+# entropy/entropy.rrd
+
+$obj = new Type_Default;
+$obj->datadir = $CONFIG['datadir'];
+$obj->path_format = '{host}/{plugin}/{type}.rrd';
+$obj->args = array(
+	'host' => $host,
+	'plugin' => $plugin,
+	'pinstance' => $pinstance,
+	'type' => $type,
+	'tinstance' => $tinstance,
+);
+$obj->data_sources = array('entropy');
+$obj->ds_names = array(
+	'entropy' => 'Entropy bits',
+);
+$obj->colors = array(
+	'entropy' => '0000f0',
+);
+$obj->width = $width;
+$obj->heigth = $heigth;
+$obj->seconds = $seconds;
+$obj->rrd_title = "Available entropy on $host";
+$obj->rrd_vertical = 'Bits';
+$obj->rrd_format = '%4.0lf';
+
+$obj->rrd_graph();
+
+?>
diff --git a/plugin/interface.php b/plugin/interface.php
new file mode 100644
index 0000000..2f345f9
--- /dev/null
+++ b/plugin/interface.php
@@ -0,0 +1,54 @@
+<?php
+
+# Collectd Interface plugin
+
+require_once $CONFIG['webdir'].'/conf/config.php';
+require_once $CONFIG['webdir'].'/type/GenericIO.class.php';
+
+# LAYOUT
+# interface/
+# interface/if_errors-XXXX.rrd
+# interface/if_octets-XXXX.rrd
+# interface/if_packets-XXXX.rrd
+
+$obj = new Type_GenericIO;
+$obj->datadir = $CONFIG['datadir'];
+$obj->path_format = '{host}/{plugin}/{type}-{tinstance}.rrd';
+$obj->args = array(
+	'host' => $host,
+	'plugin' => $plugin,
+	'pinstance' => $pinstance,
+	'type' => $type,
+	'tinstance' => $tinstance,
+);
+$obj->data_sources = array('rx', 'tx');
+$obj->ds_names = array(
+	'rx' => 'Receive ',
+	'tx' => 'Transmit',
+);
+$obj->colors = array(
+	'rx' => '0000ff',
+	'tx' => '00b000',
+);
+$obj->width = $width;
+$obj->heigth = $heigth;
+$obj->seconds = $seconds;
+$obj->rrd_format = '%5.1lf%s';
+switch($type) {
+	case 'if_errors':
+		$obj->rrd_title = "Interface Errors ($tinstance) on $host";
+		$obj->rrd_vertical = 'Errors per second';
+	break;
+	case 'if_octets':
+		$obj->rrd_title = "Interface Traffic ($tinstance) on $host";
+		$obj->rrd_vertical = 'Bits per second';
+	break;
+	case 'if_packets':
+		$obj->rrd_title = "Interface Packets ($tinstance) on $host";
+		$obj->rrd_vertical = 'Packets per second';
+	break;
+}
+
+$obj->rrd_graph();
+
+?>
diff --git a/plugin/irq.php b/plugin/irq.php
new file mode 100644
index 0000000..2759c0e
--- /dev/null
+++ b/plugin/irq.php
@@ -0,0 +1,40 @@
+<?php
+
+# Collectd IRQ plugin
+
+require_once $CONFIG['webdir'].'/conf/config.php';
+require_once $CONFIG['webdir'].'/type/GenericStacked.class.php';
+
+## LAYOUT
+# irq/
+# irq/irq-XX.rrd
+
+# grouped
+require_once $CONFIG['webdir'].'/inc/collectd.inc.php';
+$tinstance = collectd_plugindetail($host, $plugin, 'ti');
+sort($tinstance);
+
+$obj = new Type_GenericStacked;
+$obj->datadir = $CONFIG['datadir'];
+$obj->path_format = '{host}/{plugin}/{type}-{tinstance}.rrd';
+$obj->args = array(
+	'host' => $host,
+	'plugin' => $plugin,
+	'pinstance' => $pinstance,
+	'type' => $type,
+	'tinstance' => $tinstance,
+);
+$obj->data_sources = array('value');
+$obj->ds_names = NULL;
+$obj->colors = NULL;
+$obj->width = $width;
+$obj->heigth = $heigth;
+$obj->seconds = $seconds;
+
+$obj->rrd_title = "Interrupts on $host";
+$obj->rrd_vertical = 'IRQs/s';
+$obj->rrd_format = '%6.1lf';
+
+$obj->rrd_graph();
+
+?>
diff --git a/plugin/load.php b/plugin/load.php
new file mode 100644
index 0000000..d7db740
--- /dev/null
+++ b/plugin/load.php
@@ -0,0 +1,41 @@
+<?php
+
+# Collectd Load plugin
+
+require_once $CONFIG['webdir'].'/conf/config.php';
+require_once $CONFIG['webdir'].'/type/Default.class.php';
+
+## LAYOUT
+# load/load.rrd
+
+$obj = new Type_Default;
+$obj->datadir = $CONFIG['datadir'];
+$obj->path_format = '{host}/{plugin}/{type}.rrd';
+$obj->args = array(
+	'host' => $host,
+	'plugin' => $plugin,
+	'pinstance' => $pinstance,
+	'type' => $type,
+	'tinstance' => $tinstance,
+);
+$obj->data_sources = array('shortterm', 'midterm', 'longterm');
+$obj->ds_names = array(
+	'shortterm' => ' 1 min',
+	'midterm' => ' 5 min',
+	'longterm' => '15 min',
+);
+$obj->colors = array(
+	'shortterm' => '00ff00',
+	'midterm' => '0000ff',
+	'longterm' => 'ff0000',
+);
+$obj->width = $width;
+$obj->heigth = $heigth;
+$obj->seconds = $seconds;
+$obj->rrd_title = "System load on $host";
+$obj->rrd_vertical = 'System load';
+$obj->rrd_format = '%.2lf';
+
+$obj->rrd_graph();
+
+?>
diff --git a/plugin/memory.php b/plugin/memory.php
new file mode 100644
index 0000000..7944238
--- /dev/null
+++ b/plugin/memory.php
@@ -0,0 +1,53 @@
+<?php
+
+# Collectd Memory plugin
+
+require_once $CONFIG['webdir'].'/conf/config.php';
+require_once $CONFIG['webdir'].'/type/GenericStacked.class.php';
+
+## LAYOUT
+# memory/
+# memory/memory-buffered.rrd
+# memory/memory-cached.rrd
+# memory/memory-free.rrd
+# memory/memory-used.rrd
+
+# grouped
+require_once $CONFIG['webdir'].'/inc/collectd.inc.php';
+$tinstance = collectd_plugindetail($host, $plugin, 'ti');
+
+$obj = new Type_GenericStacked;
+$obj->datadir = $CONFIG['datadir'];
+$obj->path_format = '{host}/{plugin}/{type}-{tinstance}.rrd';
+$obj->args = array(
+	'host' => $host,
+	'plugin' => $plugin,
+	'pinstance' => $pinstance,
+	'type' => $type,
+	'tinstance' => $tinstance,
+);
+$obj->data_sources = array('value');
+$obj->order = array('free', 'buffered', 'cached', 'used');
+$obj->ds_names = array(
+	'free' => 'Free    ',
+	'cached' => 'Cached  ',
+	'buffered' => 'Buffered',
+	'used' => 'Used    ',
+);
+$obj->colors = array(
+	'free' => '00e000',
+	'cached' => '0000ff',
+	'buffered' => 'ffb000',
+	'used' => 'ff0000',
+);
+$obj->width = $width;
+$obj->heigth = $heigth;
+$obj->seconds = $seconds;
+
+$obj->rrd_title = "Physical memory utilization on $host";
+$obj->rrd_vertical = 'Bytes';
+$obj->rrd_format = '%5.1lf%s';
+
+$obj->rrd_graph();
+
+?>
diff --git a/plugin/processes.php b/plugin/processes.php
new file mode 100644
index 0000000..445e1e4
--- /dev/null
+++ b/plugin/processes.php
@@ -0,0 +1,58 @@
+<?php
+
+# Collectd CPU plugin
+
+require_once $CONFIG['webdir'].'/conf/config.php';
+require_once $CONFIG['webdir'].'/type/GenericStacked.class.php';
+
+## LAYOUT
+# processes/
+# processes/ps_state-paging.rrd
+# processes/ps_state-blocked.rrd
+# processes/ps_state-zombies.rrd
+# processes/ps_state-stopped.rrd
+# processes/ps_state-running.rrd
+# processes/ps_state-sleeping.rrd
+
+# grouped
+require_once $CONFIG['webdir'].'/inc/collectd.inc.php';
+$tinstance = collectd_plugindetail($host, $plugin, 'ti');
+
+$obj = new Type_GenericStacked;
+$obj->datadir = $CONFIG['datadir'];
+$obj->path_format = '{host}/{plugin}/{type}-{tinstance}.rrd';
+$obj->args = array(
+	'host' => $host,
+	'plugin' => $plugin,
+	'pinstance' => $pinstance,
+	'type' => $type,
+	'tinstance' => $tinstance,
+);
+$obj->data_sources = array('value');
+$obj->ds_names = array(
+	'paging' => 'Paging  ',
+	'blocked' => 'Blocked ',
+	'zombies' => 'Zombies ',
+	'stopped' => 'Stopped ',
+	'running' => 'Running ',
+	'sleeping' => 'Sleeping',
+);
+$obj->colors = array(
+	'paging' => 'ffb000',
+	'blocked' => 'ff00ff',
+	'zombies' => 'ff0000',
+	'stopped' => 'a000a0',
+	'running' => '00e000',
+	'sleeping' => '0000ff',
+);
+$obj->width = $width;
+$obj->heigth = $heigth;
+$obj->seconds = $seconds;
+
+$obj->rrd_title = "Processes on $host";
+$obj->rrd_vertical = 'Processes';
+$obj->rrd_format = '%5.1lf%s';
+
+$obj->rrd_graph();
+
+?>
diff --git a/plugin/sensors.php b/plugin/sensors.php
new file mode 100644
index 0000000..ad43378
--- /dev/null
+++ b/plugin/sensors.php
@@ -0,0 +1,58 @@
+<?php
+
+# Collectd Sensors plugin
+
+require_once $CONFIG['webdir'].'/conf/config.php';
+require_once $CONFIG['webdir'].'/type/Default.class.php';
+
+## LAYOUT
+# disk-XXXX/
+# disk-XXXX/fanspeed-XXXX.rrd
+# disk-XXXX/temerature-XXXX.rrd
+# disk-XXXX/voltage-XXXX.rrd
+
+# grouped
+require_once $CONFIG['webdir'].'/inc/collectd.inc.php';
+$tinstance = collectd_plugindetail($host, $plugin, 'ti', array('t' => $type));
+
+$obj = new Type_Default;
+$obj->datadir = $CONFIG['datadir'];
+$obj->path_format = '{host}/{plugin}-{pinstance}/{type}-{tinstance}.rrd';
+$obj->args = array(
+	'host' => $host,
+	'plugin' => $plugin,
+	'pinstance' => $pinstance,
+	'type' => $type,
+	'tinstance' => $tinstance,
+);
+$obj->data_sources = array('value');
+$obj->ds_names = array(
+	'value' => 'Value  ',
+);
+$obj->width = $width;
+$obj->heigth = $heigth;
+$obj->seconds = $seconds;
+switch($type) {
+	case 'fanspeed':
+		$obj->colors = '00ff00';
+		$obj->rrd_title = "Fanspeed ($pinstance) on $host";
+		$obj->rrd_vertical = 'RPM';
+		$obj->rrd_format = '%5.1lf';
+	break;
+	case 'temperature':
+		$obj->colors = '0000ff';
+		$obj->rrd_title = "Temperature ($pinstance) on $host";
+		$obj->rrd_vertical = 'Celius';
+		$obj->rrd_format = '%5.1lf%s';
+	break;
+	case 'voltage':
+		$obj->colors = 'ff0000';
+		$obj->rrd_title = "Voltage ($pinstance) on $host";
+		$obj->rrd_vertical = 'Volt';
+		$obj->rrd_format = '%5.1lf';
+	break;
+}
+
+$obj->rrd_graph();
+
+?>
diff --git a/plugin/swap.php b/plugin/swap.php
new file mode 100644
index 0000000..dfd9ba1
--- /dev/null
+++ b/plugin/swap.php
@@ -0,0 +1,50 @@
+<?php
+
+# Collectd Swap plugin
+
+require_once $CONFIG['webdir'].'/conf/config.php';
+require_once $CONFIG['webdir'].'/type/GenericStacked.class.php';
+
+## LAYOUT
+# swap/
+# swap/swap-cached.rrd
+# swap/swap-free.rrd
+# swap/swap-used.rrd
+
+# grouped
+require_once $CONFIG['webdir'].'/inc/collectd.inc.php';
+$tinstance = collectd_plugindetail($host, $plugin, 'ti');
+
+$obj = new Type_GenericStacked;
+$obj->datadir = $CONFIG['datadir'];
+$obj->path_format = '{host}/{plugin}/{type}-{tinstance}.rrd';
+$obj->args = array(
+	'host' => $host,
+	'plugin' => $plugin,
+	'pinstance' => $pinstance,
+	'type' => $type,
+	'tinstance' => $tinstance,
+);
+$obj->data_sources = array('value');
+$obj->order = array('free', 'cached', 'used');
+$obj->ds_names = array(
+	'free' => 'Free    ',
+	'cached' => 'Cached  ',
+	'used' => 'Used    ',
+);
+$obj->colors = array(
+	'free' => '00e000',
+	'cached' => '0000ff',
+	'used' => 'ff0000',
+);
+$obj->width = $width;
+$obj->heigth = $heigth;
+$obj->seconds = $seconds;
+
+$obj->rrd_title = "Swap utilization on $host";
+$obj->rrd_vertical = 'Bytes';
+$obj->rrd_format = '%5.1lf%s';
+
+$obj->rrd_graph();
+
+?>
diff --git a/plugin/users.php b/plugin/users.php
new file mode 100644
index 0000000..dfcaee3
--- /dev/null
+++ b/plugin/users.php
@@ -0,0 +1,37 @@
+<?php
+
+# Collectd Users plugin
+
+require_once $CONFIG['webdir'].'/conf/config.php';
+require_once $CONFIG['webdir'].'/type/Default.class.php';
+
+## LAYOUT
+# users/users.rrd
+
+$obj = new Type_Default;
+$obj->datadir = $CONFIG['datadir'];
+$obj->path_format = '{host}/{plugin}/{type}.rrd';
+$obj->args = array(
+	'host' => $host,
+	'plugin' => $plugin,
+	'pinstance' => $pinstance,
+	'type' => $type,
+	'tinstance' => $tinstance,
+);
+$obj->data_sources = array('users');
+$obj->ds_names = array(
+	'users' => 'Users',
+);
+$obj->colors = array(
+	'users' => '0000f0',
+);
+$obj->width = $width;
+$obj->heigth = $heigth;
+$obj->seconds = $seconds;
+$obj->rrd_title = "Users on $host";
+$obj->rrd_vertical = 'Users';
+$obj->rrd_format = '%.1lf';
+
+$obj->rrd_graph();
+
+?>
diff --git a/type/Default.class.php b/type/Default.class.php
new file mode 100644
index 0000000..8a5dd72
--- /dev/null
+++ b/type/Default.class.php
@@ -0,0 +1,127 @@
+<?php
+
+# Collectd Default type
+
+class Type_Default {
+	var $datadir;
+	var $args;
+	var $data_sources;
+	var $order;
+	var $ds_names;
+	var $colors;
+	var $rrd_title;
+	var $rrd_vertical;
+	var $rrd_format;
+	var $scale;
+	var $width;
+	var $heigth;
+
+	function validate_color($color) {
+		if (!preg_match('/^[0-9a-f]{6}$/', $color))
+			return '000000';
+		else
+			return $color;
+	}
+
+	function get_faded_color($fgc, $bgc='ffffff', $percent=0.25) {
+		$fgc = $this->validate_color($fgc);
+		if (!is_numeric($percent))
+			$percent=0.25;
+
+		$rgb = array('r', 'g', 'b');
+
+		$fg[r] = hexdec(substr($fgc,0,2));
+		$fg[g] = hexdec(substr($fgc,2,2));
+		$fg[b] = hexdec(substr($fgc,4,2));
+		$bg[r] = hexdec(substr($bgc,0,2));
+		$bg[g] = hexdec(substr($bgc,2,2));
+		$bg[b] = hexdec(substr($bgc,4,2));
+
+		foreach ($rgb as $pri) {
+			$c[$pri] = dechex(round($percent * $fg[$pri]) + ((1.0 - $percent) * $bg[$pri]));
+			if ($c[$pri] == '0')
+				$c[$pri] = '00';
+		}
+
+		return $c[r].$c[g].$c[b];
+	}
+
+	function get_filename($tinstance=NULL) {
+		if (!is_array($this->args['tinstance']) && $tinstance == NULL)
+			$tinstance = $this->args['tinstance'];
+			
+		$search = array('{host}', '{plugin}', '{pinstance}', '{type}', '{tinstance}');
+		$replace = array($this->args['host'], $this->args['plugin'], $this->args['pinstance'], $this->args['type'], $tinstance);
+		$f = $this->datadir . '/' . str_replace($search, $replace, $this->path_format);
+		return $f;
+	}
+
+	function rrd_graph($debug=false) {
+		$graphdata = $this->rrd_gen_graph();
+		
+		if(!$debug) {
+			# caching
+			header("Expires: " . date(DATE_RFC822,strtotime("90 seconds")));
+			header("content-type: image/png");
+			$graphdata = implode(' ', $graphdata);
+			echo `$graphdata`;
+		} else {
+			print '<pre>';
+			print_r($graphdata);
+			print '</pre>';
+		}
+	}
+
+	function rrd_gen_graph() {
+		$filename = $this->get_filename();
+
+		$rrdgraph[] = '/usr/bin/rrdtool graph - -a PNG';
+		$rrdgraph[] = sprintf('-w %d', is_numeric($this->width) ? $this->width : 400);
+		$rrdgraph[] = sprintf('-h %d', is_numeric($this->heigth) ? $this->heigth : 175);
+		$rrdgraph[] = '-l 0';
+		$rrdgraph[] = sprintf('-t "%s"', $this->rrd_title);
+		$rrdgraph[] = sprintf('-v "%s"', $this->rrd_vertical);
+		$rrdgraph[] = sprintf('-s -%d', is_numeric($this->seconds) ? $this->seconds : 86400);
+
+		if (is_array($this->args['tinstance']))
+			$array = is_array($this->order) ? $this->order : $this->args['tinstance'];
+		else
+			$array = $this->data_sources;
+
+		$i=0;
+		foreach ($array as $value) {
+			if (is_array($this->args['tinstance'])) {
+				$filename = $this->get_filename($value);
+				$ds = $this->data_sources[0];
+			} else {
+				$filename = $this->get_filename();
+				$ds = $value;
+			}
+			$rrdgraph[] = sprintf('DEF:min%s=%s:%s:MIN', $i, $filename, $ds);
+			$rrdgraph[] = sprintf('DEF:avg%s=%s:%s:AVERAGE', $i, $filename, $ds);
+			$rrdgraph[] = sprintf('DEF:max%s=%s:%s:MAX', $i, $filename, $ds);
+			$i++;
+		}
+
+		if (!is_array($this->args['tinstance'])) {
+			$rrdgraph[] = sprintf('AREA:max0#%s', $this->get_faded_color($this->colors[$this->data_sources[0]]));
+			$rrdgraph[] = sprintf('AREA:min0#%s', 'ffffff');
+		}
+
+		$i=0;
+		foreach ($array as $value) {
+			$dsname = $this->ds_names[$value] != '' ? $this->ds_names[$value] : $value;
+			$color = is_array($this->colors) ? $this->colors[$value]: $this->colors;
+			$rrdgraph[] = sprintf('LINE1:avg%d#%s:\'%s\'', $i, $this->validate_color($color), $dsname);
+			$rrdgraph[] = sprintf('GPRINT:min%d:MIN:\'%s Min,\'', $i, $this->rrd_format);
+			$rrdgraph[] = sprintf('GPRINT:avg%d:AVERAGE:\'%s Avg,\'', $i, $this->rrd_format);
+			$rrdgraph[] = sprintf('GPRINT:max%d:MAX:\'%s Max,\'', $i, $this->rrd_format);
+			$rrdgraph[] = sprintf('GPRINT:avg%d:LAST:\'%s Last\\l\'', $i, $this->rrd_format);
+			$i++;
+		}
+	
+		return $rrdgraph;
+	}
+}
+
+?>
diff --git a/type/GenericIO.class.php b/type/GenericIO.class.php
new file mode 100644
index 0000000..573abde
--- /dev/null
+++ b/type/GenericIO.class.php
@@ -0,0 +1,59 @@
+<?php
+
+require_once 'Default.class.php';
+
+class Type_GenericIO extends Type_Default {
+	
+	function rrd_gen_graph() {
+		$filename = $this->get_filename();
+
+		$rrdgraph[] = '/usr/bin/rrdtool graph - -a PNG';
+		$rrdgraph[] = sprintf('-w %d', is_numeric($this->width) ? $this->width : 400);
+		$rrdgraph[] = sprintf('-h %d', is_numeric($this->heigth) ? $this->heigth : 175);
+		$rrdgraph[] = '-l 0';
+		$rrdgraph[] = sprintf('-t "%s"', $this->rrd_title);
+		$rrdgraph[] = sprintf('-v "%s"', $this->rrd_vertical);
+		$rrdgraph[] = sprintf('-s -%d', is_numeric($this->seconds) ? $this->seconds : 86400);
+
+		if ($this->scale)
+			$raw = '_raw';
+		foreach($this->data_sources as $ds) {
+			$rrdgraph[] = sprintf('DEF:min_%s%s=%s:%s:MIN', $ds, $raw, $filename, $ds);
+			$rrdgraph[] = sprintf('DEF:avg_%s%s=%s:%s:AVERAGE', $ds, $raw, $filename, $ds);
+			$rrdgraph[] = sprintf('DEF:max_%s%s=%s:%s:MAX', $ds, $raw, $filename, $ds);
+		}
+		if ($this->scale) {
+			foreach($this->data_sources as $ds) {
+				$rrdgraph[] = sprintf('CDEF:min_%s=min_%s_raw,%s,*', $ds, $ds, $this->scale);
+				$rrdgraph[] = sprintf('CDEF:avg_%s=avg_%s_raw,%s,*', $ds, $ds, $this->scale);
+				$rrdgraph[] = sprintf('CDEF:max_%s=max_%s_raw,%s,*', $ds, $ds, $this->scale);
+			}
+		}
+
+		$rrdgraph[] = sprintf('CDEF:overlap=avg_%s,avg_%s,LT,avg_%1$s,avg_%2$s,IF',
+						$this->data_sources[0], $this->data_sources[1]);
+
+		foreach($this->data_sources as $ds) {
+			$rrdgraph[] = sprintf('AREA:avg_%s#%s', $ds, $this->get_faded_color($this->colors[$ds]));
+		}
+
+		$rrdgraph[] = sprintf('AREA:overlap#%s',
+			$this->get_faded_color(
+				$this->get_faded_color($this->colors[$this->data_sources[0]]),
+				$this->get_faded_color($this->colors[$this->data_sources[1]])
+			)
+		);
+
+		foreach($this->data_sources as $ds) {
+			$rrdgraph[] = sprintf('LINE1:avg_%s#%s:\'%s\'', $ds, $this->colors[$ds], $this->ds_names[$ds]);
+			$rrdgraph[] = sprintf('GPRINT:min_%s:MIN:\'%s Min,\'', $ds, $this->rrd_format);
+			$rrdgraph[] = sprintf('GPRINT:avg_%s:AVERAGE:\'%s Avg,\'', $ds, $this->rrd_format);
+			$rrdgraph[] = sprintf('GPRINT:max_%s:MAX:\'%s Max,\'', $ds, $this->rrd_format);
+			$rrdgraph[] = sprintf('GPRINT:avg_%s:LAST:\'%s Last\l\'', $ds, $this->rrd_format);
+		}
+		
+		return $rrdgraph;
+	}
+}
+
+?>
diff --git a/type/GenericStacked.class.php b/type/GenericStacked.class.php
new file mode 100644
index 0000000..99f05eb
--- /dev/null
+++ b/type/GenericStacked.class.php
@@ -0,0 +1,65 @@
+<?php
+
+require_once 'Default.class.php';
+
+class Type_GenericStacked extends Type_Default {
+	
+	function rrd_gen_graph() {
+		$rrdgraph[] = '/usr/bin/rrdtool graph - -a PNG';
+		$rrdgraph[] = sprintf('-w %d', is_numeric($this->width) ? $this->width : 400);
+		$rrdgraph[] = sprintf('-h %d', is_numeric($this->heigth) ? $this->heigth : 175);
+		$rrdgraph[] = '-l 0';
+		$rrdgraph[] = sprintf('-t "%s"', $this->rrd_title);
+		$rrdgraph[] = sprintf('-v "%s"', $this->rrd_vertical);
+		$rrdgraph[] = sprintf('-s -%d', is_numeric($this->seconds) ? $this->seconds : 86400);
+
+		if (is_array($this->args['tinstance']))
+			$array = is_array($this->order) ? $this->order : $this->args['tinstance'];
+		else
+			$array = $this->data_sources;
+
+		$i=0;
+		foreach ($array as $value) {
+			if (is_array($this->args['tinstance'])) {
+				$filename = $this->get_filename($value);
+				$ds = $this->data_sources[0];
+			} else {
+				$filename = $this->get_filename();
+				$ds = $value;
+			}
+			$rrdgraph[] = sprintf('DEF:min%s=%s:%s:MIN', $i, $filename, $ds);
+			$rrdgraph[] = sprintf('DEF:avg%s=%s:%s:AVERAGE', $i, $filename, $ds);
+			$rrdgraph[] = sprintf('DEF:max%s=%s:%s:MAX', $i, $filename, $ds);
+			$i++;
+		}
+
+		for ($i=count($array)-1 ; $i>=0 ; $i--) {
+			if ($i == (count($array)-1))
+				$rrdgraph[] = sprintf('CDEF:cdef%d=avg%d', $i, $i);
+			else
+				$rrdgraph[] = sprintf('CDEF:cdef%d=cdef%d,avg%d,+', $i, $i+1, $i);
+		}
+
+		$i=0;
+		foreach ($array as $value) {
+			$color = $this->get_faded_color($this->colors[$value]);
+			$rrdgraph[] = sprintf('AREA:cdef%d#%s', $i, $color);
+			$i++;
+		}
+
+		$i=0;
+		foreach ($array as $value) {
+			$dsname = $this->ds_names[$value] != '' ? $this->ds_names[$value] : $value;
+			$rrdgraph[] = sprintf('LINE1:cdef%d#%s:\'%s\'', $i, $this->validate_color($this->colors[$value]), $dsname);
+			$rrdgraph[] = sprintf('GPRINT:min%d:MIN:\'%s Min,\'', $i, $this->rrd_format);
+			$rrdgraph[] = sprintf('GPRINT:avg%d:AVERAGE:\'%s Avg,\'', $i, $this->rrd_format);
+			$rrdgraph[] = sprintf('GPRINT:max%d:MAX:\'%s Max,\'', $i, $this->rrd_format);
+			$rrdgraph[] = sprintf('GPRINT:avg%d:LAST:\'%s Last\\l\'', $i, $this->rrd_format);
+			$i++;
+		}
+
+		return $rrdgraph;
+	}
+}
+
+?>
-- 
cgit v1.1