--- /dev/null
+<?php // vim:fenc=utf-8:filetype=php:ts=4
+/*
+ * Copyright (C) 2009 Bruno Prémont <bonbons AT linux-vserver.org>
+ *
+ * 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; only version 2 of the License is applicable.
+ *
+ * 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 Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+define('REGEXP_HOST', '/^[a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(\\.[a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/');
+define('REGEXP_PLUGIN', '/^[a-zA-Z0-9_.-]+$/');
+
+/**
+ * Read input variable from GET, POST or COOKIE taking
+ * care of magic quotes
+ * @name Name of value to return
+ * @array User-input array ($_GET, $_POST or $_COOKIE)
+ * @default Default value
+ * @return $default if name in unknown in $array, otherwise
+ * input value with magic quotes stripped off
+ */
+function read_var($name, &$array, $default = null) {
+ if (isset($array[$name])) {
+ if (is_array($array[$name])) {
+ if (get_magic_quotes_gpc()) {
+ $ret = array();
+ while (list($k, $v) = each($array[$name]))
+ $ret[stripslashes($k)] = stripslashes($v);
+ return $ret;
+ } else
+ return $array[$name];
+ } else if (is_string($array[$name]) && get_magic_quotes_gpc()) {
+ return stripslashes($array[$name]);
+ } else
+ return $array[$name];
+ } else
+ return $default;
+}
+
+/**
+ * Alphabetically compare host names, comparing label
+ * from tld to node name
+ */
+function collectd_compare_host($a, $b) {
+ $ea = explode('.', $a);
+ $eb = explode('.', $b);
+ $i = count($ea) - 1;
+ $j = count($eb) - 1;
+ while ($i >= 0 && $j >= 0)
+ if (($r = strcmp($ea[$i--], $eb[$j--])) != 0)
+ return $r;
+ return 0;
+}
+
+/**
+ * Fetch list of hosts found in collectd's datadirs.
+ * @return Sorted list of hosts (sorted by label from rigth to left)
+ */
+function collectd_list_hosts() {
+ global $config;
+
+ $hosts = array();
+ foreach($config['datadirs'] as $datadir)
+ if ($d = @opendir($datadir)) {
+ while (($dent = readdir($d)) !== false)
+ if ($dent != '.' && $dent != '..' && is_dir($datadir.'/'.$dent) && preg_match(REGEXP_HOST, $dent))
+ $hosts[] = $dent;
+ closedir($d);
+ }
+ $hosts = array_unique($hosts);
+ usort($hosts, 'collectd_compare_host');
+ return $hosts;
+}
+
+/**
+ * Fetch list of plugins found in collectd's datadirs for given host.
+ * @arg_host Name of host for which to return plugins
+ * @return Sorted list of plugins (sorted alphabetically)
+ */
+function collectd_list_plugins($arg_host) {
+ global $config;
+
+ $plugins = array();
+ foreach ($config['datadirs'] as $datadir)
+ if (preg_match(REGEXP_HOST, $arg_host) && ($d = @opendir($datadir.'/'.$arg_host))) {
+ while (($dent = readdir($d)) !== false)
+ if ($dent != '.' && $dent != '..' && is_dir($datadir.'/'.$arg_host.'/'.$dent)) {
+ if ($i = strpos($dent, '-'))
+ $plugins[] = substr($dent, 0, $i);
+ else
+ $plugins[] = $dent;
+ }
+ closedir($d);
+ }
+ $plugins = array_unique($plugins);
+ sort($plugins);
+ return $plugins;
+}
+
+/**
+ * Fetch list of plugin instances found in collectd's datadirs for given host+plugin
+ * @arg_host Name of host
+ * @arg_plugin Name of plugin
+ * @return Sorted list of plugin instances (sorted alphabetically)
+ */
+function collectd_list_pinsts($arg_host, $arg_plugin) {
+ global $config;
+
+ $pinsts = array();
+ foreach ($config['datadirs'] as $datadir)
+ if (preg_match(REGEXP_HOST, $arg_host) && ($d = opendir($datadir.'/'.$arg_host))) {
+ while (($dent = readdir($d)) !== false)
+ if ($dent != '.' && $dent != '..' && is_dir($datadir.'/'.$arg_host.'/'.$dent)) {
+ if ($i = strpos($dent, '-')) {
+ $plugin = substr($dent, 0, $i);
+ $pinst = substr($dent, $i+1);
+ } else {
+ $plugin = $dent;
+ $pinst = '';
+ }
+ if ($plugin == $arg_plugin)
+ $pinsts[] = $pinst;
+ }
+ closedir($d);
+ }
+ $pinsts = array_unique($pinsts);
+ sort($pinsts);
+ return $pinsts;
+}
+
+/**
+ * Fetch list of types found in collectd's datadirs for given host+plugin+instance
+ * @arg_host Name of host
+ * @arg_plugin Name of plugin
+ * @arg_pinst Plugin instance
+ * @return Sorted list of types (sorted alphabetically)
+ */
+function collectd_list_types($arg_host, $arg_plugin, $arg_pinst) {
+ global $config;
+
+ $types = array();
+ $my_plugin = $arg_plugin . (strlen($arg_pinst) ? '-'.$arg_pinst : '');
+ if (!preg_match(REGEXP_PLUGIN, $my_plugin))
+ return $types;
+ foreach ($config['datadirs'] as $datadir)
+ if (preg_match(REGEXP_HOST, $arg_host) && ($d = @opendir($datadir.'/'.$arg_host.'/'.$my_plugin))) {
+ while (($dent = readdir($d)) !== false)
+ if ($dent != '.' && $dent != '..' && is_file($datadir.'/'.$arg_host.'/'.$my_plugin.'/'.$dent) && substr($dent, strlen($dent)-4) == '.rrd') {
+ $dent = substr($dent, 0, strlen($dent)-4);
+ if ($i = strpos($dent, '-'))
+ $types[] = substr($dent, 0, $i);
+ else
+ $types[] = $dent;
+ }
+ closedir($d);
+ }
+ $types = array_unique($types);
+ sort($types);
+ return $types;
+}
+
+/**
+ * Fetch list of type instances found in collectd's datadirs for given host+plugin+instance+type
+ * @arg_host Name of host
+ * @arg_plugin Name of plugin
+ * @arg_pinst Plugin instance
+ * @arg_type Type
+ * @return Sorted list of type instances (sorted alphabetically)
+ */
+function collectd_list_tinsts($arg_host, $arg_plugin, $arg_pinst, $arg_type) {
+ global $config;
+
+ $tinsts = array();
+ $my_plugin = $arg_plugin . (strlen($arg_pinst) ? '-'.$arg_pinst : '');
+ if (!preg_match(REGEXP_PLUGIN, $my_plugin))
+ return $types;
+ foreach ($config['datadirs'] as $datadir)
+ if (preg_match(REGEXP_HOST, $arg_host) && ($d = @opendir($datadir.'/'.$arg_host.'/'.$my_plugin))) {
+ while (($dent = readdir($d)) !== false)
+ if ($dent != '.' && $dent != '..' && is_file($datadir.'/'.$arg_host.'/'.$my_plugin.'/'.$dent) && substr($dent, strlen($dent)-4) == '.rrd') {
+ $dent = substr($dent, 0, strlen($dent)-4);
+ if ($i = strpos($dent, '-')) {
+ $type = substr($dent, 0, $i);
+ $tinst = substr($dent, $i+1);
+ } else {
+ $type = $dent;
+ $tinst = '';
+ }
+ if ($type == $arg_type)
+ $tinsts[] = $tinst;
+ }
+ closedir($d);
+ }
+ $tinsts = array_unique($tinsts);
+ sort($tinsts);
+ return $tinsts;
+}
+
+/**
+ * Parse symlinks in order to get an identifier that collectd understands
+ * (e.g. virtualisation is collected on host for individual VMs and can be
+ * symlinked to the VM's hostname, support FLUSH for these by flushing
+ * on the host-identifier instead of VM-identifier)
+ * @host Host name
+ * @plugin Plugin name
+ * @pinst Plugin instance
+ * @type Type name
+ * @tinst Type instance
+ * @return Identifier that collectd's FLUSH command understands
+ */
+function collectd_identifier($host, $plugin, $pinst, $type, $tinst) {
+ global $config;
+ $rrd_realpath = null;
+ $orig_identifier = sprintf('%s/%s%s%s/%s%s%s', $host, $plugin, strlen($pinst) ? '-' : '', $pinst, $type, strlen($tinst) ? '-' : '', $tinst);
+ $identifier = null;
+ foreach ($config['datadirs'] as $datadir)
+ if (is_file($datadir.'/'.$orig_identifier.'.rrd')) {
+ $rrd_realpath = realpath($datadir.'/'.$orig_identifier.'.rrd');
+ break;
+ }
+ if ($rrd_realpath) {
+ $identifier = basename($rrd_realpath);
+ $identifier = substr($identifier, 0, strlen($identifier)-4);
+ $rrd_realpath = dirname($rrd_realpath);
+ $identifier = basename($rrd_realpath).'/'.$identifier;
+ $rrd_realpath = dirname($rrd_realpath);
+ $identifier = basename($rrd_realpath).'/'.$identifier;
+ }
+
+ if (is_null($identifier))
+ return $orig_identifier;
+ else
+ return $identifier;
+}
+
+/**
+ * Tell collectd that it should FLUSH all data it has regarding the
+ * graph we are about to generate.
+ * @host Host name
+ * @plugin Plugin name
+ * @pinst Plugin instance
+ * @type Type name
+ * @tinst Type instance
+ */
+function collectd_flush($identifier) {
+ global $config;
+
+ if (!$config['collectd_sock'])
+ return false;
+ if (is_null($identifier) || (is_array($identifier) && count($identifier) == 0) || !(is_string($identifier) || is_array($identifier)))
+ return false;
+
+ if (is_null($host) || !is_string($host) || strlen($host) == 0)
+ return false;
+ if (is_null($plugin) || !is_string($plugin) || strlen($plugin) == 0)
+ return false;
+ if (is_null($pinst) || !is_string($pinst))
+ return false;
+ if (is_null($type) || !is_string($type) || strlen($type) == 0)
+ return false;
+ if (is_null($tinst) || (is_array($tinst) && count($tinst) == 0) || !(is_string($tinst) || is_array($tinst)))
+ return false;
+
+ $u_errno = 0;
+ $u_errmsg = '';
+ if ($socket = @fsockopen($config['collectd_sock'], 0, $u_errno, $u_errmsg)) {
+ $cmd = 'FLUSH plugin=rrdtool';
+ if (is_array($identifier)) {
+ foreach ($identifier as $val)
+ $cmd .= sprintf(' identifier="%s"', $val);
+ } else
+ $cmd .= sprintf(' identifier="%s"', $identifier);
+ $cmd .= "\n";
+
+ $r = fwrite($socket, $cmd, strlen($cmd));
+ if ($r === false || $r != strlen($cmd))
+ error_log(sprintf("graph.php: Failed to write whole command to unix-socket: %d out of %d written", $r === false ? -1 : $r, strlen($cmd)));
+
+ $resp = fgets($socket);
+ if ($resp === false)
+ error_log(sprintf("graph.php: Failed to read response from collectd for command: %s", trim($cmd)));
+
+ $n = (int)$resp;
+ while ($n-- > 0)
+ fgets($socket);
+
+ fclose($socket);
+ } else
+ error_log(sprintf("graph.php: Failed to open unix-socket to collectd: %d: %s", $u_errno, $u_errmsg));
+}
+
+class CollectdColor {
+ private $r = 0;
+ private $g = 0;
+ private $b = 0;
+
+ function __construct($value = null) {
+ if (is_null($value)) {
+ } else if (is_array($value)) {
+ if (isset($value['r']))
+ $this->r = $value['r'] > 0 ? ($value['r'] > 1 ? 1 : $value['r']) : 0;
+ if (isset($value['g']))
+ $this->g = $value['g'] > 0 ? ($value['g'] > 1 ? 1 : $value['g']) : 0;
+ if (isset($value['b']))
+ $this->b = $value['b'] > 0 ? ($value['b'] > 1 ? 1 : $value['b']) : 0;
+ } else if (is_string($value)) {
+ $matches = array();
+ if ($value == 'random') {
+ $this->randomize();
+ } else if (preg_match('/([0-9A-Fa-f][0-9A-Fa-f])([0-9A-Fa-f][0-9A-Fa-f])([0-9A-Fa-f][0-9A-Fa-f])/', $value, $matches)) {
+ $this->r = ('0x'.$matches[1]) / 255.0;
+ $this->g = ('0x'.$matches[2]) / 255.0;
+ $this->b = ('0x'.$matches[3]) / 255.0;
+ }
+ } else if (is_a($value, 'CollectdColor')) {
+ $this->r = $value->r;
+ $this->g = $value->g;
+ $this->b = $value->b;
+ }
+ }
+
+ function randomize() {
+ $this->r = rand(0, 255) / 255.0;
+ $this->g = rand(0, 255) / 255.0;
+ $this->b = 0.0;
+ $min = 0.0;
+ $max = 1.0;
+
+ if (($this->r + $this->g) < 1.0) {
+ $min = 1.0 - ($this->r + $this->g);
+ } else {
+ $max = 2.0 - ($this->r + $this->g);
+ }
+ $this->b = $min + ((rand(0, 255)/255.0) * ($max - $min));
+ }
+
+ function fade($bkgnd = null, $alpha = 0.25) {
+ if (is_null($bkgnd) || !is_a($bkgnd, 'CollectdColor')) {
+ $bg_r = 1.0;
+ $bg_g = 1.0;
+ $bg_b = 1.0;
+ } else {
+ $bg_r = $bkgnd->r;
+ $bg_g = $bkgnd->g;
+ $bg_b = $bkgnd->b;
+ }
+
+ $this->r = $alpha * $this->r + ((1.0 - $alpha) * $bg_r);
+ $this->g = $alpha * $this->g + ((1.0 - $alpha) * $bg_g);
+ $this->b = $alpha * $this->b + ((1.0 - $alpha) * $bg_b);
+ }
+
+ function as_array() {
+ return array('r'=>$this->r, 'g'=>$this->g, 'b'=>$this->b);
+ }
+
+ function as_string() {
+ $r = (int)($this->r*255);
+ $g = (int)($this->g*255);
+ $b = (int)($this->b*255);
+ return sprintf('%02x%02x%02x', $r > 255 ? 255 : $r, $g > 255 ? 255 : $g, $b > 255 ? 255 : $b);
+ }
+}
+
+
+/**
+ * Helper function to strip quotes from RRD output
+ * @str RRD-Info generated string
+ * @return String with one surrounding pair of quotes stripped
+ */
+function rrd_strip_quotes($str) {
+ if ($str[0] == '"' && $str[strlen($str)-1] == '"')
+ return substr($str, 1, strlen($str)-2);
+ else
+ return $str;
+}
+
+/**
+ * Determine useful information about RRD file
+ * @file Name of RRD file to analyse
+ * @return Array describing the RRD file
+ */
+function rrd_info($file) {
+ $info = array('filename'=>$file);
+
+ $rrd = popen(RRDTOOL.' info '.escapeshellarg($file), 'r');
+ if ($rrd) {
+ while (($s = fgets($rrd)) !== false) {
+ $p = strpos($s, '=');
+ if ($p === false)
+ continue;
+ $key = trim(substr($s, 0, $p));
+ $value = trim(substr($s, $p+1));
+ if (strncmp($key,'ds[', 3) == 0) {
+ /* DS definition */
+ $p = strpos($key, ']');
+ $ds = substr($key, 3, $p-3);
+ if (!isset($info['DS']))
+ $info['DS'] = array();
+ $ds_key = substr($key, $p+2);
+
+ if (strpos($ds_key, '[') === false) {
+ if (!isset($info['DS']["$ds"]))
+ $info['DS']["$ds"] = array();
+ $info['DS']["$ds"]["$ds_key"] = rrd_strip_quotes($value);
+ }
+ } else if (strncmp($key, 'rra[', 4) == 0) {
+ /* RRD definition */
+ $p = strpos($key, ']');
+ $rra = substr($key, 4, $p-4);
+ if (!isset($info['RRA']))
+ $info['RRA'] = array();
+ $rra_key = substr($key, $p+2);
+
+ if (strpos($rra_key, '[') === false) {
+ if (!isset($info['RRA']["$rra"]))
+ $info['RRA']["$rra"] = array();
+ $info['RRA']["$rra"]["$rra_key"] = rrd_strip_quotes($value);
+ }
+ } else if (strpos($key, '[') === false) {
+ $info[$key] = rrd_strip_quotes($value);
+ }
+ }
+ pclose($rrd);
+ }
+ return $info;
+}
+
+function rrd_get_color($code, $line = true) {
+ global $config;
+ $name = ($line ? 'f_' : 'h_').$code;
+ if (!isset($config['rrd_colors'][$name])) {
+ $c_f = new CollectdColor('random');
+ $c_h = new CollectdColor($c_f);
+ $c_h->fade();
+ $config['rrd_colors']['f_'.$code] = $c_f->as_string();
+ $config['rrd_colors']['h_'.$code] = $c_h->as_string();
+ }
+ return $config['rrd_colors'][$name];
+}
+
+/**
+ * Draw RRD file based on it's structure
+ * @host
+ * @plugin
+ * @pinst
+ * @type
+ * @tinst
+ * @opts
+ * @return Commandline to call RRDGraph in order to generate the final graph
+ */
+function collectd_draw_rrd($host, $plugin, $pinst = null, $type, $tinst = null, $opts = array()) {
+ global $config;
+ $timespan_def = null;
+ if (!isset($opts['timespan']))
+ $timespan_def = reset($config['timespan']);
+ else foreach ($config['timespan'] as &$ts)
+ if ($ts['name'] == $opts['timespan'])
+ $timespan_def = $ts;
+
+ if (!isset($opts['rrd_opts']))
+ $opts['rrd_opts'] = array();
+ if (isset($opts['logarithmic']) && $opts['logarithmic'])
+ array_unshift($opts['rrd_opts'], '-o');
+
+ $rrdinfo = null;
+ $rrdfile = sprintf('%s/%s%s%s/%s%s%s', $host, $plugin, is_null($pinst) ? '' : '-', $pinst, $type, is_null($tinst) ? '' : '-', $tinst);
+ foreach ($config['datadirs'] as $datadir)
+ if (is_file($datadir.'/'.$rrdfile.'.rrd')) {
+ $rrdinfo = rrd_info($datadir.'/'.$rrdfile.'.rrd');
+ if (isset($rrdinfo['RRA']) && is_array($rrdinfo['RRA']))
+ break;
+ else
+ $rrdinfo = null;
+ }
+
+ if (is_null($rrdinfo))
+ return false;
+
+ $graph = array();
+ $has_avg = false;
+ $has_max = false;
+ $has_min = false;
+ reset($rrdinfo['RRA']);
+ $l_max = 0;
+ while (list($k, $v) = each($rrdinfo['RRA'])) {
+ if ($v['cf'] == 'MAX')
+ $has_max = true;
+ else if ($v['cf'] == 'AVERAGE')
+ $has_avg = true;
+ else if ($v['cf'] == 'MIN')
+ $has_min = true;
+ }
+ reset($rrdinfo['DS']);
+ while (list($k, $v) = each($rrdinfo['DS'])) {
+ if (strlen($k) > $l_max)
+ $l_max = strlen($k);
+ if ($has_min)
+ $graph[] = sprintf('DEF:%s_min=%s:%s:MIN', $k, $rrdinfo['filename'], $k);
+ if ($has_avg)
+ $graph[] = sprintf('DEF:%s_avg=%s:%s:AVERAGE', $k, $rrdinfo['filename'], $k);
+ if ($has_max)
+ $graph[] = sprintf('DEF:%s_max=%s:%s:MAX', $k, $rrdinfo['filename'], $k);
+ }
+ if ($has_min && $has_max || $has_min && $has_avg || $has_avg && $has_max) {
+ $n = 1;
+ reset($rrdinfo['DS']);
+ while (list($k, $v) = each($rrdinfo['DS'])) {
+ $graph[] = sprintf('LINE:%s_%s', $k, $has_min ? 'min' : 'avg');
+ $graph[] = sprintf('CDEF:%s_var=%s_%s,%s_%s,-', $k, $k, $has_max ? 'max' : 'avg', $k, $has_min ? 'min' : 'avg');
+ $graph[] = sprintf('AREA:%s_var#%s::STACK', $k, rrd_get_color($n++, false));
+ }
+ }
+
+ reset($rrdinfo['DS']);
+ $n = 1;
+ while (list($k, $v) = each($rrdinfo['DS'])) {
+ $graph[] = sprintf('LINE1:%s_avg#%s:%s ', $k, rrd_get_color($n++, true), $k.substr(' ', 0, $l_max-strlen($k)));
+ if (isset($opts['tinylegend']) && $opts['tinylegend'])
+ continue;
+ if ($has_avg)
+ $graph[] = sprintf('GPRINT:%s_avg:AVERAGE:%%5.1lf%%s Avg%s', $k, $has_max || $has_min || $has_avg ? ',' : "\\l");
+ if ($has_min)
+ $graph[] = sprintf('GPRINT:%s_min:MIN:%%5.1lf%%s Max%s', $k, $has_max || $has_avg ? ',' : "\\l");
+ if ($has_max)
+ $graph[] = sprintf('GPRINT:%s_max:MAX:%%5.1lf%%s Max%s', $k, $has_avg ? ',' : "\\l");
+ if ($has_avg)
+ $graph[] = sprintf('GPRINT:%s_avg:LAST:%%5.1lf%%s Last\\l', $k);
+ }
+
+ $rrd_cmd = array(RRDTOOL, 'graph', '-', '-a', 'PNG', '-w', $config['rrd_width'], '-h', $config['rrd_height'], '-s', -1*$timespan_def['seconds'], '-t', $rrdfile);
+ $rrd_cmd = array_merge($rrd_cmd, $config['rrd_opts'], $opts['rrd_opts'], $graph);
+
+ $cmd = RRDTOOL;
+ for ($i = 1; $i < count($rrd_cmd); $i++)
+ $cmd .= ' '.escapeshellarg($rrd_cmd[$i]);
+
+ return $cmd;
+}
+
+/**
+ * Draw RRD file based on it's structure
+ * @timespan
+ * @host
+ * @plugin
+ * @pinst
+ * @type
+ * @tinst
+ * @opts
+ * @return Commandline to call RRDGraph in order to generate the final graph
+ */
+function collectd_draw_generic($timespan, $host, $plugin, $pinst = null, $type, $tinst = null) {
+ global $config, $GraphDefs;
+ $timespan_def = null;
+ foreach ($config['timespan'] as &$ts)
+ if ($ts['name'] == $timespan)
+ $timespan_def = $ts;
+ if (is_null($timespan_def))
+ $timespan_def = reset($config['timespan']);
+
+ if (!isset($GraphDefs[$type]))
+ return false;
+
+ $rrd_file = sprintf('%s/%s%s%s/%s%s%s', $host, $plugin, is_null($pinst) ? '' : '-', $pinst, $type, is_null($tinst) ? '' : '-', $tinst);
+ $rrd_cmd = array(RRDTOOL, 'graph', '-', '-a', 'PNG', '-w', $config['rrd_width'], '-h', $config['rrd_height'], '-s', -1*$timespan_def['seconds'], '-t', $rrd_file);
+ $rrd_cmd = array_merge($rrd_cmd, $config['rrd_opts']);
+ $rrd_args = $GraphDefs[$type];
+
+ foreach ($config['datadirs'] as $datadir) {
+ $file = $datadir.'/'.$rrd_file.'.rrd';
+ if (!is_file($file))
+ continue;
+
+ $file = str_replace(":", "\\:", $file);
+ $rrd_args = str_replace('{file}', $file, $rrd_args);
+
+ $rrdgraph = array_merge($rrd_cmd, $rrd_args);
+ $cmd = RRDTOOL;
+ for ($i = 1; $i < count($rrdgraph); $i++)
+ $cmd .= ' '.escapeshellarg($rrdgraph[$i]);
+
+ return $cmd;
+ }
+ return false;
+}
+
+/**
+ * Draw stack-graph for set of RRD files
+ * @opts Graph options like colors
+ * @sources List of array(name, file, ds)
+ * @return Commandline to call RRDGraph in order to generate the final graph
+ */
+function collectd_draw_meta_stack(&$opts, &$sources) {
+ global $config;
+ $timespan_def = null;
+ if (!isset($opts['timespan']))
+ $timespan_def = reset($config['timespan']);
+ else foreach ($config['timespan'] as &$ts)
+ if ($ts['name'] == $opts['timespan'])
+ $timespan_def = $ts;
+
+ if (!isset($opts['title']))
+ $opts['title'] = 'Unknown title';
+ if (!isset($opts['rrd_opts']))
+ $opts['rrd_opts'] = array();
+ if (!isset($opts['colors']))
+ $opts['colors'] = array();
+ if (isset($opts['logarithmic']) && $opts['logarithmic'])
+ array_unshift($opts['rrd_opts'], '-o');
+
+ $cmd = array(RRDTOOL, 'graph', '-', '-a', 'PNG', '-w', $config['rrd_width'], '-h', $config['rrd_height'], '-s', -1*$timespan_def['seconds'], '-t', $opts['title']);
+ $cmd = array_merge($cmd, $config['rrd_opts'], $opts['rrd_opts']);
+ $max_inst_name = 0;
+
+ foreach($sources as &$inst_data) {
+ $inst_name = $inst_data['name'];
+ $file = $inst_data['file'];
+ $ds = isset($inst_data['ds']) ? $inst_data['ds'] : 'value';
+
+ if (strlen($inst_name) > $max_inst_name)
+ $max_inst_name = strlen($inst_name);
+
+ if (!is_file($file))
+ continue;
+
+ $cmd[] = 'DEF:'.$inst_name.'_min='.$file.':'.$ds.':MIN';
+ $cmd[] = 'DEF:'.$inst_name.'_avg='.$file.':'.$ds.':AVERAGE';
+ $cmd[] = 'DEF:'.$inst_name.'_max='.$file.':'.$ds.':MAX';
+ $cmd[] = 'CDEF:'.$inst_name.'_nnl='.$inst_name.'_avg,UN,0,'.$inst_name.'_avg,IF';
+ }
+ $inst_data = end($sources);
+ $inst_name = $inst_data['name'];
+ $cmd[] = 'CDEF:'.$inst_name.'_stk='.$inst_name.'_nnl';
+
+ $inst_data1 = end($sources);
+ while (($inst_data0 = prev($sources)) !== false) {
+ $inst_name0 = $inst_data0['name'];
+ $inst_name1 = $inst_data1['name'];
+
+ $cmd[] = 'CDEF:'.$inst_name0.'_stk='.$inst_name0.'_nnl,'.$inst_name1.'_stk,+';
+ $inst_data1 = $inst_data0;
+ }
+
+ foreach($sources as &$inst_data) {
+ $inst_name = $inst_data['name'];
+ $legend = sprintf('%s', $inst_name);
+ while (strlen($legend) < $max_inst_name)
+ $legend .= ' ';
+ $number_format = isset($opts['number_format']) ? $opts['number_format'] : '%6.1lf';
+
+ if (isset($opts['colors'][$inst_name]))
+ $line_color = new CollectdColor($opts['colors'][$inst_name]);
+ else
+ $line_color = new CollectdColor('random');
+ $area_color = new CollectdColor($line_color);
+ $area_color->fade();
+
+ $cmd[] = 'AREA:'.$inst_name.'_stk#'.$area_color->as_string();
+ $cmd[] = 'LINE1:'.$inst_name.'_stk#'.$line_color->as_string().':'.$legend;
+ if (!(isset($opts['tinylegend']) && $opts['tinylegend'])) {
+ $cmd[] = 'GPRINT:'.$inst_name.'_min:MIN:'.$number_format.' Min,';
+ $cmd[] = 'GPRINT:'.$inst_name.'_avg:AVERAGE:'.$number_format.' Avg,';
+ $cmd[] = 'GPRINT:'.$inst_name.'_max:MAX:'.$number_format.' Max,';
+ $cmd[] = 'GPRINT:'.$inst_name.'_avg:LAST:'.$number_format.' Last\\l';
+ }
+ }
+
+ $rrdcmd = RRDTOOL;
+ for ($i = 1; $i < count($cmd); $i++)
+ $rrdcmd .= ' '.escapeshellarg($cmd[$i]);
+ return $rrdcmd;
+}
+
+/**
+ * Draw stack-graph for set of RRD files
+ * @opts Graph options like colors
+ * @sources List of array(name, file, ds)
+ * @return Commandline to call RRDGraph in order to generate the final graph
+ */
+function collectd_draw_meta_line(&$opts, &$sources) {
+ global $config;
+ $timespan_def = null;
+ if (!isset($opts['timespan']))
+ $timespan_def = reset($config['timespan']);
+ else foreach ($config['timespan'] as &$ts)
+ if ($ts['name'] == $opts['timespan'])
+ $timespan_def = $ts;
+
+ if (!isset($opts['title']))
+ $opts['title'] = 'Unknown title';
+ if (!isset($opts['rrd_opts']))
+ $opts['rrd_opts'] = array();
+ if (!isset($opts['colors']))
+ $opts['colors'] = array();
+ if (isset($opts['logarithmic']) && $opts['logarithmic'])
+ array_unshift($opts['rrd_opts'], '-o');
+
+ $cmd = array(RRDTOOL, 'graph', '-', '-a', 'PNG', '-w', $config['rrd_width'], '-h', $config['rrd_height'], '-s', -1*$timespan_def['seconds'], '-t', $opts['title']);
+ $cmd = array_merge($cmd, $config['rrd_opts'], $opts['rrd_opts']);
+ $max_inst_name = 0;
+
+ foreach ($sources as &$inst_data) {
+ $inst_name = $inst_data['name'];
+ $file = $inst_data['file'];
+ $ds = isset($inst_data['ds']) ? $inst_data['ds'] : 'value';
+
+ if (strlen($inst_name) > $max_inst_name)
+ $max_inst_name = strlen($inst_name);
+
+ if (!is_file($file))
+ continue;
+
+ $cmd[] = 'DEF:'.$inst_name.'_min='.$file.':'.$ds.':MIN';
+ $cmd[] = 'DEF:'.$inst_name.'_avg='.$file.':'.$ds.':AVERAGE';
+ $cmd[] = 'DEF:'.$inst_name.'_max='.$file.':'.$ds.':MAX';
+ }
+
+ foreach ($sources as &$inst_data) {
+ $inst_name = $inst_data['name'];
+ $legend = sprintf('%s', $inst_name);
+ while (strlen($legend) < $max_inst_name)
+ $legend .= ' ';
+ $number_format = isset($opts['number_format']) ? $opts['number_format'] : '%6.1lf';
+
+ if (isset($opts['colors'][$inst_name]))
+ $line_color = new CollectdColor($opts['colors'][$inst_name]);
+ else
+ $line_color = new CollectdColor('random');
+
+ $cmd[] = 'LINE1:'.$inst_name.'_avg#'.$line_color->as_string().':'.$legend;
+ if (!(isset($opts['tinylegend']) && $opts['tinylegend'])) {
+ $cmd[] = 'GPRINT:'.$inst_name.'_min:MIN:'.$number_format.' Min,';
+ $cmd[] = 'GPRINT:'.$inst_name.'_avg:AVERAGE:'.$number_format.' Avg,';
+ $cmd[] = 'GPRINT:'.$inst_name.'_max:MAX:'.$number_format.' Max,';
+ $cmd[] = 'GPRINT:'.$inst_name.'_avg:LAST:'.$number_format.' Last\\l';
+ }
+ }
+
+ $rrdcmd = RRDTOOL;
+ for ($i = 1; $i < count($cmd); $i++)
+ $rrdcmd .= ' '.escapeshellarg($cmd[$i]);
+ return $rrdcmd;
+}
+
+?>
projects / collectd.git / blobdiff