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.

3 files changed, 251 insertions, 0 deletions

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;
+        }
+}
+
+?>