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rrdstat.php-class
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rrdstat.php-class
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<?php
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
class rrdstat {
// rrdstat PHP class
// rrdtool statistics functions
//
// function __construct($rrdconfig, [$conf_id])
// CONSTRUCTOR
// if $conf_id is set, $rrdconfig is a total configuration set
// else it's the configuration for this one RRD
// currently only a config array is supported, XML config is planned
//
// private $rrdtool_bin
// RRDtool binary to use
//
// private $rrd_file
// RRD file name
//
// private $basename
// base name for this RRD (usually file name without .rrd)
//
// private $basedir
// base directory for this RRD (with a trailing slash)
// note that $rrd_file usually includes that path as well, but graph directory gets based on this value
//
// private $config_all
// complete, raw configuration array set
//
// private $config_raw
// configuration array set for current RRD
//
// private $config_graph
// configuration array set for default graph in this RRD
//
// private $config_page
// configuration array set for default page in this RRD
//
// private $rrd_fields
// definition of this RRD's fields
//
// private $rra_base
// definition of this RRD's base RRAs
//
// private $rrd_step
// basic stepping of this RRD in seconds (default: 300)
//
// private $rra_add_max
// should RRAs for MAX be added for every base RRA? (bool, default: true)
//
// private $status
// status of the RRD (unused/ok/readonly/graphonly)
// note that most functions require certain status values
// (e.g. update only works if status is ok, graph for ok/readonly/graphonly)
//
// private $mod_textdomain
// GNU gettext domain for this module
//
// private function set_def($rrdconfig, [$conf_id])
// set definitions based on given configuration
// [intended for internal use, called by the constructor]
//
// public function rrd_version() {
// get RRDtool version string
//
// public function create()
// create RRD file according to set config
//
// public function update([$upArray])
// feed new data into RRD (either use given array of values or use auto-update info from config)
//
// public function fetch([$cf] = 'AVERAGE', $resolution = null, $start = null, $end = null)
// fetch data from the defined RRD
// using given consolidation function [default is AVERAGE],
// resolution (seconds, default is the RRD's stepping),
// start and end times (unix epoch, defaults are the RRD's last update time)
//
// public function last_update()
// fetch time of last update in this RRD file
//
// public function graph([$timeframe], [$sub], [$extra])
// create a RRD graph (and return all meta info in a flat string)
// for given timeframe (day [default]/week/month/year),
// sub-graph ID (if given) and extra config options (if given)
//
// public function graph_plus([$timeframe], [$sub], [$extra])
// create a RRD graph (see above) and return meta info as a ready-to-use array
//
// public function page([$sub], [$page_extras], [$graph_extras])
// create a (HTML) page and return it in a string
// for given sub-page ID (if given, default is a simple HTML page)
// and extra page and graph config options (if given)
//
// public function simple_html([$sub], [$page_extras], [$graph_extras])
// create a simple (MRTG-like) HTML page and return it in a string
// XXX: this is here temporarily for compat only, it's preferred to use page()!
//
// private function page_index($pconf)
// create a bare, very simple index list HTML page and return it in a string
// using given page config options
// [intended for internal use, called by page()]
//
// private function page_overview($pconf, [$graph_extras])
// create an overview HTML page (including graphs) and return it in a string
// using given page config options and extra graph options (if given)
// [intended for internal use, called by page()]
//
// private function page_simple($pconf, [$graph_extras])
// create a simple (MRTG-like) HTML page and return it in a string
// using given page config options and extra graph options (if given)
// [intended for internal use, called by page()]
//
// private function h_page_statsArray($pconf)
// return array of stats to list on a page, using given page config options
// [intended for internal use, called by page_*()]
//
// private function h_page_footer()
// return generic page footer
// [intended for internal use, called by page_*()]
//
// private function text_quote($text)
// return a quoted/escaped text for use in rrdtool commandline text fields
private $rrdtool_bin = '/usr/bin/rrdtool';
private $rrd_file = null;
private $basename = null;
private $basedir = null;
private $config_all = null;
private $config_raw = null;
private $config_graph = null;
private $config_page = null;
private $rrd_fields = array();
private $rra_base = array();
private $rrd_step = 300;
private $rra_add_max = true;
private $status = 'unused';
private $mod_textdomain;
function __construct($rrdconfig, $conf_id = null) {
// ***** init RRD stat module *****
$this->mod_textdomain = 'class_rrdstat';
$mod_charset = 'utf-8';
bindtextdomain($this->mod_textdomain, class_exists('baseutils')?baseutils::getDir('locale'):'locale/');
bind_textdomain_codeset($this->mod_textdomain, $mod_charset);
$this->set_def($rrdconfig, $conf_id);
if (($this->status == 'unused') && !is_null($this->rrd_file)) {
if (!is_writeable($this->rrd_file)) {
if (!file_exists($this->rrd_file)) {
if (@touch($this->rrd_file)) { $this->create(); }
else { trigger_error('RRD file can not be created', E_USER_WARNING); }
}
else {
if (is_readable($this->rrd_file)) { $this->status = 'readonly'; }
else { trigger_error('RRD file is not readable', E_USER_WARNING); }
}
}
else {
$this->status = 'ok';
}
}
}
private function set_def($rrdconfig, $conf_id = null) {
if (is_array($rrdconfig)) {
// we have an array in the format we like to have
$complete_conf =& $rrdconfig;
}
else {
// we have something else (XML data?), try to generate the iinfo aray from it
$complete_conf =& $rrdconfig;
}
if (!is_null($conf_id)) {
$iinfo = isset($complete_conf[$conf_id])?$complete_conf[$conf_id]:array();
if (isset($complete_conf['*'])) {
$iinfo = (array)$iinfo + (array)$complete_conf['*'];
if (isset($complete_conf['*']['graph'])) {
$iinfo['graph'] = (array)$iinfo['graph'] + (array)$complete_conf['*']['graph'];
}
if (isset($complete_conf['*']['page'])) {
$iinfo['page'] = (array)$iinfo['page'] + (array)$complete_conf['*']['page'];
}
}
}
else {
$iinfo = $complete_conf;
}
if (isset($iinfo['path']) && strlen($iinfo['path'])) {
$this->basedir = $iinfo['path'];
if (substr($this->basedir, -1) != '/') { $this->basedir .= '/'; }
}
if (isset($iinfo['graph-only']) && $iinfo['graph-only'] && !is_null($conf_id)) {
$this->basename = $conf_id;
$this->status = 'graphonly';
}
elseif (isset($iinfo['file'])) {
$this->rrd_file = (($iinfo['file'][0] != '/')?$this->basedir:'').$iinfo['file'];
$this->basename = basename((substr($this->rrd_file, -4) == '.rrd')?substr($this->rrd_file, 0, -4):$this->rrd_file);
}
elseif (!is_null($conf_id) && file_exists($conf_id.'.rrd')) {
$this->rrd_file = (($iinfo['file'][0] != '/')?$this->basedir:'').$conf_id.'.rrd';
$this->basename = $conf_id;
}
else {
$this->basename = !is_null($conf_id)?$conf_id:'xxx.unknown';
}
if (!is_null($this->rrd_file)) {
// fields (data sources, DS)
// name - DS name
// type - one of COUNTER, GAUGE, DERIVE, ABSOLUTE
// heartbeat - if no sample recieved for that time, store UNKNOWN
// min - U (unconstrained) or minimum value
// max - U (unconstrained) or maximum value
// update - this string will be fed into eval() for updating this field
if (isset($iinfo['fields']) && is_array($iinfo['fields'])) {
$this->rrd_fields = $iinfo['fields'];
}
else {
$this->rrd_fields[] = array('name' => 'ds0', 'type' => 'COUNTER', 'heartbeat' => 600, 'min' => 'U', 'max' => 'U');
$this->rrd_fields[] = array('name' => 'ds1', 'type' => 'COUNTER', 'heartbeat' => 600, 'min' => 'U', 'max' => 'U');
}
// MRTG-style RRD "database", see http://oss.oetiker.ch/rrdtool/tut/rrdtutorial.en.html
//
// archives (RRAs):
// 600 samples of 5 minutes (2 days and 2 hours)
// 700 samples of 30 minutes (2 days and 2 hours, plus 12.5 days)
// 775 samples of 2 hours (above + 50 days)
// 797 samples of 1 day (above + 732 days, rounded up to 797)
$this->rrd_step = isset($iinfo['rrd_step'])?$iinfo['rrd_step']:300;
if (isset($iinfo['rra_base']) && is_array($iinfo['rra_base'])) {
$this->rra_base = $iinfo['rra_base'];
}
else {
$this->rra_base[] = array('step' => 1, 'rows' => 600);
$this->rra_base[] = array('step' => 6, 'rows' => 700);
$this->rra_base[] = array('step' => 24, 'rows' => 775);
$this->rra_base[] = array('step' => 288, 'rows' => 797);
}
$this->rra_add_max = isset($iinfo['rra_add_max'])?$iinfo['rra_add_max']:true;
}
if (isset($iinfo['graph'])) { $this->config_graph = $iinfo['graph']; }
if (isset($iinfo['page'])) { $this->config_page = $iinfo['page']; }
$this->config_raw = $iinfo;
$this->config_all = $complete_conf;
}
public function rrd_version() {
// return RRDtool version
static $version;
if (!isset($version)) {
$create_cmd = $this->rrdtool_bin.' --version';
$return = `$create_cmd 2>&1`;
if (strpos($return, 'ERROR') !== false) {
trigger_error($this->rrd_file.' - rrd version error: '.$return, E_USER_WARNING);
}
if (preg_match('/^\s*RRDtool ([\d\.]+)\s+/', $return, $regs)) {
$version = $regs[1];
}
else {
$version = '0.0';
}
}
return $version;
}
public function create() {
// create RRD file
// compose create command
$create_cmd = $this->rrdtool_bin.' create '.$this->rrd_file.' --step '.$this->rrd_step;
foreach ($this->rrd_fields as $ds) {
if (!isset($ds['type'])) { $ds['type'] = 'COUNTER'; }
if (!isset($ds['heartbeat'])) { $ds['heartbeat'] = 2*$this->rrd_step; }
if (!isset($ds['min'])) { $ds['min'] = 'U'; }
if (!isset($ds['max'])) { $ds['max'] = 'U'; }
$create_cmd .= ' DS:'.$ds['name'].':'.$ds['type'].':'.$ds['heartbeat'].':'.$ds['min'].':'.$ds['max'];
}
foreach ($this->rra_base as $rra) {
if (!isset($rra['cf'])) { $rra['cf'] = 'AVERAGE'; }
if (!isset($rra['xff'])) { $rra['xff'] = 0.5; }
if (!isset($rra['step'])) { $rra['step'] = 1; }
if (!isset($rra['rows'])) { $rra['rows'] = 600; }
$create_cmd .= ' RRA:'.$rra['cf'].':'.$rra['xff'].':'.$rra['step'].':'.$rra['rows'];
}
if ($this->rra_add_max) {
foreach ($this->rra_base as $rra) {
if (!isset($rra['cf'])) {
// only rows that have no CF set will be looked at here
$rra['cf'] = 'MAX';
if (!isset($rra['xff'])) { $rra['xff'] = 0.5; }
if (!isset($rra['step'])) { $rra['step'] = 1; }
if (!isset($rra['rows'])) { $rra['rows'] = 600; }
$create_cmd .= ' RRA:'.$rra['cf'].':'.$rra['xff'].':'.$rra['step'].':'.$rra['rows'];
}
}
}
$return = `$create_cmd 2>&1`;
if (strpos($return, 'ERROR') !== false) {
trigger_error($this->rrd_file.' - rrd create error: '.$return, E_USER_WARNING);
}
else { $this->status = 'ok'; }
}
public function update($upArray = null) {
// feed new data into RRD
if ($this->status != 'ok') { trigger_error('Cannot update non-writeable file', E_USER_WARNING); return false; }
$upvals = array();
if (isset($this->config_raw['update'])) {
if (is_object($this->config_raw['update'])) {
// We assume it's an anonymous function
$upvals = $this->config_raw['update']();
}
else {
if (preg_match('/^\s*function\s+{(.*)}\s*$/is', $this->config_raw['update'], $regs)) {
$evalcode = '$upfunc = function() {'."\n".$regs[1]."\n".'};'."\n".'print(implode("\n", $upfunc()));';
}
else {
$evalcode = $this->config_raw['update'];
}
if (!is_null($evalcode)) {
ob_start();
eval($evalcode);
$ret = ob_get_contents();
if (strlen($ret)) { $upvals = explode("\n", $ret); }
ob_end_clean();
}
}
}
else {
foreach ($this->rrd_fields as $ds) {
if (is_array($upArray) && isset($upArray[$ds['name']])) { $val = $upArray[$ds['name']]; }
elseif (isset($ds['update'])) {
$val = null;
if (is_object($ds['update'])) {
// We assume it's an anonymous function
$val = $ds['update']();
}
elseif (substr($ds['update'], 0, 4) == 'val:') {
$val = trim(substr($ds['update'], 4));
}
elseif (substr($ds['update'], 0, 8) == 'snmp-if:') {
if (substr_count($ds['update'], ':') >= 4) {
list($nix, $snmphost, $snmpcomm, $ifname, $valtype) = explode(':', $ds['update'], 5);
}
else {
$snmphost = 'localhost'; $snmpcomm = 'public';
list($nix, $ifname, $valtype) = explode(':', $ds['update'], 3);
}
$iflist = explode("\n", `snmpwalk -v2c -c $snmpcomm $snmphost interfaces.ifTable.ifEntry.ifDescr`);
$ifnr = null;
foreach ($iflist as $ifdesc) {
if (preg_match('/ifDescr\.(\d+) = STRING: '.$ifname.'/', $ifdesc, $regs)) { $ifnr = $regs[1]; }
}
$oid = null;
if ($valtype == 'in') { $oid = '1.3.6.1.2.1.2.2.1.10.'.$ifnr; }
elseif ($valtype == 'out') { $oid = '1.3.6.1.2.1.2.2.1.16.'.$ifnr; }
if (!is_null($ifnr) && !is_null($oid)) {
$val = trim(substr(strrchr(`snmpget -v2c -c $snmpcomm $snmphost $oid`,":"),1));
}
}
else {
if (preg_match('/^\s*function\s+{(.*)}\s*$/is', $ds['update'], $regs)) {
$evalcode = '$upfunc = function() {'."\n".$regs[1]."\n".'};'."\n".'print($upfunc());';
}
else {
$evalcode = $ds['update'];
}
if (!is_null($evalcode)) {
ob_start();
eval($evalcode);
$val = ob_get_contents();
ob_end_clean();
}
}
}
else { $val = null; }
$upvals[$ds['name']] = $val;
}
}
$upval_keys = array_keys($upvals);
$keys_have_names = !is_numeric(array_shift($upval_keys));
if (in_array('L', $upvals, true)) {
// for at least one value, we need to set the same as the last recorded value
$fvals = $this->fetch();
$rowids = array_shift($fvals);
$lastvals = array_shift($fvals);
foreach (array_keys($upvals, 'L') as $akey) {
$upvals[$akey] = $keys_have_names?$lastvals[$akey]:$lastvals[$rowids[$akey]];
}
}
array_walk($upvals, function(&$val, $key) { $val = is_numeric(trim($val)) ? trim($val) : "U"; });
$return = null;
if (count($upvals)) {
$update_cmd = $this->rrdtool_bin.' update '.$this->rrd_file
.($keys_have_names?' --template '.implode(':', array_keys($upvals)):'').' N:'.implode(':', $upvals);
$return = `$update_cmd 2>&1`;
}
if (strpos($return, 'ERROR') !== false) {
trigger_error($this->rrd_file.' - rrd update error: '.$return, E_USER_WARNING);
$success = false;
}
else { $success = true; }
return $success;
}
public function fetch($cf = 'AVERAGE', $resolution = null, $start = null, $end = null) {
// fetch data from a RRD
if (!in_array($this->status, array('ok','readonly'))) {
trigger_error('Error: rrd status is '.$this->status, E_USER_WARNING); return false;
}
if (!in_array($cf, array('AVERAGE','MIN','MAX','LAST'))) { $cf = 'AVERAGE'; }
if (!is_numeric($resolution)) { $resolution = $this->rrd_step; }
if (!is_numeric($end)) { $end = $this->last_update(); }
elseif ($end < 0) { $end += $this->last_update(); }
$end = intval($end/$resolution)*$resolution;
if (!is_numeric($start)) { $start = $end-$resolution; }
elseif ($start < 0) { $start += $end; }
$start = intval($start/$resolution)*$resolution;
$fetch_cmd = 'LANG=C '.$this->rrdtool_bin.' fetch '.$this->rrd_file.' '.$cf.' --resolution '.$resolution
.' --start '.$start.' --end '.$end;
$return = `$fetch_cmd 2>&1`;
if (strpos($return, 'ERROR') !== false) {
trigger_error($this->rrd_file.' - rrd fetch error: '.$return, E_USER_WARNING);
$fresult = false;
}
else {
$fresult = array();
$rows = explode("\n", $return);
$fields = preg_split('/\s+/', array_shift($rows));
if (in_array(array_shift($fields), array('timestamp', ''))) {
//$fresult[0] = $fields;
foreach ($rows as $row) {
if (strlen(trim($row))) {
$rvals = preg_split('/\s+/', $row);
$rtime = str_replace(':', '', array_shift($rvals));
$rv_array = array();
foreach ($rvals as $key=>$rval) {
$rv_array[$fields[$key]] = ($rval=='nan')?null:floatval($rval);
}
$fresult[$rtime] = $rv_array;
}
}
}
}
return $fresult;
}
public function last_update() {
// fetch time of last update in this RRD file
static $last_update, $last_saved;
if (isset($last_update) && isset($last_saved) && ($last_saved <= (time() - 10))) { unset($last_update); }
if (!isset($last_update) && in_array($this->status, array('ok','readonly'))) {
$last_cmd = $this->rrdtool_bin.' last '.$this->rrd_file;
$return = trim(`$last_cmd 2>&1`);
$last_update = is_numeric($return)?$return:null;
$last_saved = time();
}
return isset($last_update)?$last_update:null;
}
public function graph($timeframe = 'day', $sub = null, $extra = null) {
// create a RRD graph
static $gColors;
if (!isset($gColors)) {
$gColors = array('#00CC00','#0000FF','#000000','#FF0000','#00FF00','#FFFF00','#FF00FF','#00FFFF',
'#808080','#800000','#008000','#000080','#808000','#800080','#008080','#C0C0C0');
}
if (!in_array($this->status, array('ok','readonly','graphonly'))) {
trigger_error('Error: rrd status is '.$this->status, E_USER_WARNING); return false;
}
// assemble configuration
$gconf = (array)$extra;
if (!is_null($sub) && array_key_exists('graph.'.$sub, $this->config_raw) && is_array($this->config_raw['graph.'.$sub])) {
$gconf = $gconf + $this->config_raw['graph.'.$sub];
}
$gconf = $gconf + (array)$this->config_graph;
if (isset($gconf['format']) && ($gconf['format'] == 'SVG')) {
$format = $gconf['format']; $fmt_ext = '.svg';
}
elseif (isset($gconf['format']) && ($gconf['format'] == 'EPS')) {
$format = $gconf['format']; $fmt_ext = '.eps';
}
elseif (isset($gconf['format']) && ($gconf['format'] == 'PDF')) {
$format = $gconf['format']; $fmt_ext = '.pdf';
}
else {
$format = 'PNG'; $fmt_ext = '.png';
}
if (isset($gconf['filename'])) { $fname = $gconf['filename']; }
else { $fname = $this->basename.(is_null($sub)?'':'-%s').'-%t%f'; }
$fname = str_replace('%s', strval($sub), $fname);
$fname = str_replace('%t', $timeframe, $fname);
$fname = str_replace('%f', $fmt_ext, $fname);
if (substr($fname, -strlen($fmt_ext)) != $fmt_ext) { $fname .= $fmt_ext; }
if (isset($gconf['path']) && ($fname[0] != '/')) { $fname = $gconf['path'].'/'.$fname; }
if ($fname[0] != '/') { $fname = $this->basedir.$fname; }
$fname = str_replace('//', '/', $fname);
$graphrows = array(); $specialrows = array(); $gC = 0;
$gDefs = ''; $gGraphs = ''; $addSpecial = '';
// the default size for the graph area has a width of 400px, so use 400 slices by default
if ($timeframe == 'day') {
$slice = isset($gconf['slice'])?$gconf['slice']:300; // 5 minutes
$duration = isset($gconf['duration'])?$gconf['duration']:400*$slice; // 33.33 hours
// vertical lines at day borders
$addSpecial .= ' VRULE:'.strtotime(date('Y-m-d')).'#FF0000';
$addSpecial .= ' VRULE:'.strtotime(date('Y-m-d').' -1 day').'#FF0000';
if (!isset($gconf['grid_x'])) { $gconf['grid_x'] = 'HOUR:1:HOUR:6:HOUR:2:0:%-H'; }
}
elseif ($timeframe == 'week') {
$slice = isset($gconf['slice'])?$gconf['slice']:1800; // 30 minutes
$duration = isset($gconf['duration'])?$gconf['duration']:400*$slice; // 8.33 days
// vertical lines at week borders
$addSpecial .= ' VRULE:'.strtotime(date('Y-m-d').' '.(-date('w')+1).' day').'#FF0000';
$addSpecial .= ' VRULE:'.strtotime(date('Y-m-d').' '.(-date('w')-6).' day').'#FF0000';
}
elseif ($timeframe == 'month') {
$slice = isset($gconf['slice'])?$gconf['slice']:7200; // 2 hours
$duration = isset($gconf['duration'])?$gconf['duration']:400*$slice; // 33.33 days
// vertical lines at month borders
$addSpecial .= ' VRULE:'.strtotime(date('Y-m-01')).'#FF0000';
$addSpecial .= ' VRULE:'.strtotime(date('Y-m-01').' -1 month').'#FF0000';
}
elseif ($timeframe == 'year') {
$slice = isset($gconf['slice'])?$gconf['slice']:86400; // 1 day
$duration = isset($gconf['duration'])?$gconf['duration']:400*$slice; // 400 days
// vertical lines at month borders
$addSpecial .= ' VRULE:'.strtotime(date('Y-01-01 12:00:00')).'#FF0000';
$addSpecial .= ' VRULE:'.strtotime(date('Y-01-01 12:00:00').' -1 year').'#FF0000';
}
else {
$duration = isset($gconf['duration'])?$gconf['duration']:$this->rrd_step*500; // 500 steps
$slice = isset($gconf['slice'])?$gconf['slice']:$this->rrd_step; // whatever our step is
}
$use_gcrows = (isset($gconf['rows']) && count($gconf['rows']));
if ($use_gcrows) { $grow_def =& $gconf['rows']; }
else { $grow_def =& $this->rrd_fields; }
foreach ($grow_def as $key=>$erow) {
if (isset($erow['name']) && strlen($erow['name'])) {
if (!isset($erow['scale']) && isset($gconf['scale'])) { $erow['scale'] = $gconf['scale']; }
if (!isset($erow['scale_time_src']) && isset($gconf['scale_time_src'])) {
$erow['scale_time_src'] = $gconf['scale_time_src'];
}
if (!isset($erow['scale_time_tgt']) && isset($gconf['scale_time_tgt'])) {
$erow['scale_time_tgt'] = $gconf['scale_time_tgt'];
}
foreach (array('scale_time_src','scale_time_tgt') as $st) {
if (!isset($erow[$st]) || !is_numeric($erow[$st])) {
switch ($erow[$st] ?? null) {
case 'dyn':
case 'auto':
$erow[$st] = $slice;
break;
case 'day':
$erow[$st] = 24*3600;
break;
case '2hr':
case '2hours':
$erow[$st] = 7200;
break;
case 'hr':
case 'hour':
$erow[$st] = 3600;
break;
case '30min':
$erow[$st] = 1800;
break;
case '5min':
$erow[$st] = 300;
break;
case 'min':
$erow[$st] = 60;
break;
case 's':
case 'sec':
default:
$erow[$st] = 1;
break;
}
}
}
$scale_time_factor = $erow['scale_time_tgt']/$erow['scale_time_src'];
if ($scale_time_factor != 1) { $erow['scale'] = (isset($erow['scale'])?$erow['scale']:1)*$scale_time_factor; }
$grow = array();
$grow['dType'] = ($use_gcrows && isset($erow['dType']))?$erow['dType']:'DEF';
$grow['name'] = $erow['name'].(isset($erow['scale'])?'_tmp':'');
if ($grow['dType'] == 'DEF') {
$grow['dsname'] = ($use_gcrows && isset($erow['dsname']))?$erow['dsname']:$erow['name'];
if ($use_gcrows && isset($erow['dsfile'])) { $grow['dsfile'] = $erow['dsfile']; }
$grow['cf'] = ($use_gcrows && isset($erow['cf']))?$erow['cf']:'AVERAGE';
}
else {
$grow['rpn_expr'] = isset($erow['rpn_expr'])?$erow['rpn_expr']:'0';
}
if (isset($erow['scale'])) {
$graphrows[] = $grow;
$grow = array();
$grow['dType'] = 'CDEF';
$grow['name'] = $erow['name'];
$grow['rpn_expr'] = $erow['name'].'_tmp,'.sprintf('%F', $erow['scale']).',*';
}
if ($use_gcrows) { $grow['gType'] = isset($erow['gType'])?$erow['gType']:'LINE1'; }
else { $grow['gType'] = ((count($grow_def)==2) && ($key==0))?'AREA':'LINE1'; }
$grow['color'] = isset($erow['color'])?$erow['color']:$gColors[$gC++];
$grow['color_bg'] = isset($erow['color_bg'])?$erow['color_bg']:'';
if ($gC >= count($gColors)) { $gC = 0; }
if (isset($erow['legend'])) {
$grow['legend'] = $erow['legend'];
if (!isset($gconf['show_legend'])) { $gconf['show_legend'] = true; }
}
if (isset($erow['stack'])) { $grow['stack'] = ($erow['stack'] == true); }
if (isset($erow['desc'])) { $grow['desc'] = $erow['desc']; }
if (isset($erow['legend_long'])) { $grow['legend_long'] = $erow['legend_long']; }
$graphrows[] = $grow;
}
}
if (isset($gconf['special']) && count($gconf['special'])) {
foreach ($gconf['special'] as $crow) {
$srow = array();
$srow['sType'] = isset($crow['sType'])?$crow['sType']:'COMMENT';
if ($grow['sType'] != 'COMMENT') {
// XXX: use line below and remove cf var once we have rrdtol 1.2
if ($this->rrd_version() >= '1.2') {
$srow['name'] = $crow['name'].(isset($crow['cf'])?'_'.$crow['cf']:'');
}
else {
$srow['name'] = $crow['name'];
$srow['cf'] = isset($crow['cf'])?$crow['cf']:'AVERAGE';
}
if (isset($crow['cf'])) {
if ($this->rrd_version() >= '1.2') {
$graphrows[] = array('dType'=>'VDEF', 'name'=>$srow['name'].'_'.$crow['cf'],
'rpn_expr'=>$srow['name'].','.$crow['cf']);
}
}
elseif (isset($crow['rpn_expr'])) {
if ($this->rrd_version() >= '1.2') {
$graphrows[] = array('dType'=>'VDEF', 'name'=>$srow['name'], 'rpn_expr'=>$crow['rpn_expr']);
}
}
}
$srow['text'] = isset($crow['text'])?$crow['text']:'';
$specialrows[] = $srow;
}
}
else {
$td = $this->mod_textdomain;
foreach ($graphrows as $grow) {
if (isset($grow['gType']) && strlen($grow['gType'])) {
$textprefix = isset($grow['desc'])?$grow['desc']:(isset($grow['legend'])?$grow['legend']:$grow['name']);
if ($this->rrd_version() >= '1.2') {
$graphrows[] = array('dType'=>'VDEF', 'name'=>'_'.$grow['name'].'__max', 'rpn_expr'=>$grow['name'].',MAXIMUM');
$specialrows[] = array('sType'=>'PRINT', 'name'=>'_'.$grow['name'].'__max',
'text'=>$textprefix.'|'.dgettext($td, 'Maximum').'|%.2lf%s');
$graphrows[] = array('dType'=>'VDEF', 'name'=>'_'.$grow['name'].'__avg', 'rpn_expr'=>$grow['name'].',AVERAGE');
$specialrows[] = array('sType'=>'PRINT', 'name'=>'_'.$grow['name'].'__avg',
'text'=>$textprefix.'|'.dgettext($td, 'Average').'|%.2lf%s');
$graphrows[] = array('dType'=>'VDEF', 'name'=>'_'.$grow['name'].'__last', 'rpn_expr'=>$grow['name'].',LAST');
$specialrows[] = array('sType'=>'PRINT', 'name'=>'_'.$grow['name'].'__last',
'text'=>$textprefix.'|'.dgettext($td, 'Current').'|%.2lf%s');
}
else {
$specialrows[] = array('sType'=>'PRINT', 'name'=>$grow['name'], 'cf'=>'MAX',
'text'=>$textprefix.'|'.dgettext($td, 'Maximum').'|%.2lf%s');
$specialrows[] = array('sType'=>'PRINT', 'name'=>$grow['name'], 'cf'=>'AVERAGE',
'text'=>$textprefix.'|'.dgettext($td, 'Average').'|%.2lf%s');
$specialrows[] = array('sType'=>'PRINT', 'name'=>$grow['name'], 'cf'=>'LAST',
'text'=>$textprefix.'|'.dgettext($td, 'Current').'|%.2lf%s');
}
}
}
}
$endtime = isset($gconf['time_end'])?$gconf['time_end']:(is_numeric($this->last_update())?$this->last_update():time());
$gOpts = ' --start '.($endtime-$duration).' --end '.$endtime.' --step '.$slice;
if (isset($gconf['label_top'])) { $gOpts .= ' --title '.$this->text_quote($gconf['label_top']); }
if (isset($gconf['label_y'])) { $gOpts .= ' --vertical-label '.$this->text_quote($gconf['label_y']); }
if (isset($gconf['width'])) { $gOpts .= ' --width '.$gconf['width']; }
if (isset($gconf['height'])) { $gOpts .= ' --height '.$gconf['height'];
if (($gconf['height'] <= 32) && isset($gconf['thumb']) && ($gconf['thumb'])) { $gOpts .= ' --only-graph'; }
}
if (!isset($gconf['show_legend']) || (!$gconf['show_legend'])) { $gOpts .= ' --no-legend'; }
if (isset($gconf['logarithmic']) && $gconf['logarithmic']) { $gOpts .= ' --logarithmic'; }
if (isset($gconf['min_y'])) { $gOpts .= ' --lower-limit '.$gconf['min_y']; }
if (isset($gconf['max_y'])) { $gOpts .= ' --upper-limit '.$gconf['max_y']; }
if (isset($gconf['fix_scale_y']) && $gconf['fix_scale_y']) { $gOpts .= ' --rigid'; }
if (isset($gconf['grid_x'])) { $gOpts .= ' --x-grid '.$gconf['grid_x']; }
if (isset($gconf['grid_y'])) { $gOpts .= ' --y-grid '.$gconf['grid_y']; }
if (isset($gconf['gridfit']) && (!$gconf['gridfit'])) { $gOpts .= ' --no-gridfit'; }
if (isset($gconf['calc_scale_y']) && $gconf['calc_scale_y']) { $gOpts .= ' --alt-autoscale'; }
if (isset($gconf['calc_max_y']) && $gconf['calc_max_y']) { $gOpts .= ' --alt-autoscale-max'; }
if (isset($gconf['units_exponent'])) { $gOpts .= ' --units-exponent '.$gconf['units_exponent']; }
if (isset($gconf['units_length'])) { $gOpts .= ' --units-length '.$gconf['units_length']; }
if (($this->rrd_version() < '1.2') || !count($specialrows)) {
// lazy graphics omit all print reporting in RRDtool 1.2!
// --> so don't use them there when we want to print stuff
if (!isset($gconf['force_recreate']) || (!$gconf['force_recreate'])) { $gOpts .= ' --lazy'; }
}
if (isset($gconf['force_color']) && is_array($gconf['force_color'])) {
foreach ($gconf['force_color'] as $ctag=>$cval) { $gOpts .= ' --color '.$ctag.$cval; }
}
if (isset($gconf['force_font']) && is_array($gconf['force_font'])) {
foreach ($gconf['force_font'] as $ctag=>$cval) { $gOpts .= ' --font '.$ctag.$cval; }
}
if (isset($gconf['units_binary']) && $gconf['units_binary']) { $gOpts .= ' --base 1024'; }
foreach ($graphrows as $grow) {
if (isset($grow['dType']) && strlen($grow['dType'])) {
$gDefs .= ' '.$grow['dType'].':'.$grow['name'].'=';
if ($grow['dType'] == 'DEF') {
$gDefs .= isset($grow['dsfile'])?$grow['dsfile']:$this->rrd_file;
$gDefs .= ':'.$grow['dsname'].':'.$grow['cf'];
}
else { $gDefs .= $grow['rpn_expr']; }
}
if (isset($grow['gType']) && strlen($grow['gType'])) {
// XXX: change from STACK type to STACK flag once we have rrdtool 1.2
if ($this->rrd_version() < '1.2') {
// rrdtool 1.0 only know STACK type
if (isset($grow['stack']) && $grow['stack']) { $grow['gType'] = 'STACK'; }
}
$gGraphs .= ' '.$grow['gType'].':'.$grow['name'].$grow['color'];
if (isset($grow['legend'])) { $gGraphs .= ':'.$this->text_quote($grow['legend']); }
if ($this->rrd_version() >= '1.2') {
// rrdtool 1.2 and above have STACK flag
if (isset($grow['stack']) && $grow['stack']) { $gGraphs .= ':STACK'; }
}
}
}
foreach ($specialrows as $srow) {
$addSpecial .= ' '.$srow['sType'];
if ($this->rrd_version() >= '1.2') {
$addSpecial .= (($srow['sType']!='COMMENT')?':'.$srow['name']:'');
}
else {
$addSpecial .= (($srow['sType']!='COMMENT')?':'.$srow['name'].':'.$srow['cf']:'');
}
$addSpecial .= ':'.$this->text_quote($srow['text']);
}
$graph_cmd = $this->rrdtool_bin.' graph '.str_replace('*', '\*', $fname.$gOpts.$gDefs.$gGraphs.$addSpecial);
if ((file_exists($fname) && !is_writable($fname)) ||
(!file_exists($fname) && !is_writable(dirname($fname)))) {
trigger_error($this->rrd_file.' - graph file not writable: '.$fname, E_USER_WARNING);
return 'command:'.$graph_cmd."\n\n".'unwritable file: '.$fname;
}
$graph_out = `$graph_cmd 2>&1`;
if (strpos($graph_out, 'ERROR') !== false) {
trigger_error($this->rrd_file.' - rrd graph error: '.$graph_out, E_USER_WARNING);
return 'command:'.$graph_cmd."\n\n".$graph_out;
}
$legendlines = '';
foreach ($graphrows as $grow) {
$legendline = isset($grow['desc'])?$grow['desc']:(isset($grow['legend'])?$grow['legend']:$grow['name']);
$legendline .= '|'.($grow['color'] ?? '');
$legendline .= '|'.(isset($grow['color_bg'])?$grow['color_bg']:'');
$legendline .= '|'.(isset($grow['legend_long'])?$grow['legend_long']:'');
$legendlines .= 'legend:'.$legendline."\n";
}
$return = 'file:'.$fname."\n".$legendlines.$graph_out;
return $return;
}
public function graph_plus($timeframe = 'day', $sub = null, $extra = null) {
// create a RRD graph and return meta info as a ready-to-use array
$gmeta = array('filename'=>null,'legends_long'=>false,'default_colorize'=>false);
$ret = $this->graph($timeframe, $sub, $extra);
if (0) {
// debug output
$gmeta['ret'] = $ret;
}
$grout = explode("\n", $ret);
foreach ($grout as $gline) {
if (preg_match('/^command:(.+)$/', $gline, $regs)) {
$gmeta['graph_cmd'] = $regs[1];
}
elseif (preg_match('/^file:(.+)$/', $gline, $regs)) {
$gmeta['filename'] = $regs[1];
}
elseif (preg_match('/^legend:([^\|]+)\|([^|]*)\|([^\|]*)\|(.*)$/', $gline, $regs)) {
$gmeta['legend'][$regs[1]] = array('color'=>$regs[2], 'color_bg'=>$regs[3], 'desc_long'=>$regs[4]);
if (strlen($regs[4])) { $gmeta['legends_long'] = true; }
if (strlen($regs[3]) || strlen($regs[4])) { $gmeta['default_colorize'] = true; }
}
elseif (preg_match('/^(\d+)x(\d+)$/', $gline, $regs)) {
$gmeta['width'] = $regs[1]; $gmeta['height'] = $regs[2];
}
elseif (preg_match('/^([^\|]+)\|([^|]+)\|([^\|]*)$/', $gline, $regs)) {
$gmeta['data'][$regs[1]][$regs[2]] = $regs[3];
}
elseif (preg_match('/^([^\|]+)\|([^\|]*)$/', $gline, $regs)) {
$gmeta['var'][$regs[1]] = $regs[2];
}
elseif (strlen(trim($gline))) {
$gmeta['info'][] = $gline;
}
}
if (is_null($gmeta['filename'])) {
$gmeta['filename'] = $this->basename.(!is_null($sub)?'-'.$sub:'').'-'.$timeframe.'.png';
}
return $gmeta;
}
public function page($sub = null, $page_extras = null, $graph_extras = null) {
// create a (HTML) page and return it in a string
// assemble configuration
$pconf = (array)$page_extras;
if (!is_null($sub) && is_array($this->config_raw['page.'.$sub])) {
$pconf = $pconf + $this->config_raw['page.'.$sub];
}
$pconf = $pconf + (array)$this->config_page;
$return = null;
switch ($pconf['type'] ?? null) {
case 'index':
$return = $this->page_index($pconf);
break;
case 'overview':
$return = $this->page_overview($pconf, $graph_extras);
break;
case 'simple':
default:
$return = $this->page_simple($pconf, $graph_extras);
break;
}
return $return;
}
public function simple_html($sub = null, $page_extras = null, $graph_extras = null) {
// create a simple (MRTG-like) HTML page and return it in a string
// XXX: this is here temporarily for compat only, it's preferred to use page()!
trigger_error(__CLASS__.'::'.__METHOD__.' is deprecated, use page() instead.', E_USER_NOTICE);
// assemble configuration
$pconf = (array)$page_extras;
if (!is_null($sub) && is_array($this->config_raw['page.'.$sub])) {
$pconf = $pconf + $this->config_raw['page.'.$sub];
}
$pconf = $pconf + (array)$this->config_page;
return $this->page_simple($pconf, $graph_extras);
}
private function page_index($pconf) {
// create a bare, very simple index list HTML page and return it in a string
$td = $this->mod_textdomain;
$ptitle = isset($pconf['title_page'])?$pconf['title_page']:dgettext($td, 'RRD statistics index');
$out = '<!DOCTYPE html>'."\n";
$out .= '<html><head>'."\n";
$out .= '<title>'.$ptitle.'</title>'."\n";
$out .= '<style type="text/css">'."\n";
if (isset($pconf['style_base'])) { $out .= $pconf['style_base']; }
else {
$out .= 'h1 { font-weight: bold; font-size: 1.5em; }'."\n";
$out .= '.footer { font-size: 0.75em; margin: 0.5em 0; }'."\n";
$out .= 'li.scanfile { font-style: italic; }'."\n";
}
if (isset($pconf['style'])) { $out .= $pconf['style']; }
$out .= '</style>'."\n";
$out .= '</head>'."\n";
$out .= '<body>'."\n";
$out .= '<h1>'.$ptitle.'</h1>'."\n";
if (isset($pconf['text_intro']) && strlen($pconf['text_intro'])) {
$out .= '<p class="intro">'.$pconf['text_intro'].'</p>'."\n";
}
elseif (!isset($pconf['text_intro'])) {
$out .= '<p class="intro">'.dgettext($td, 'The following RRD stats are available:').'</p>'."\n";
}
$stats = $this->h_page_statsArray($pconf);
if (isset($pconf['stats_url'])) { $sURL_base = $pconf['stats_url']; }
else { $sURL_base = '?stat=%i%a'; }
if (isset($pconf['stats_url_add'])) { $sURL_add = $pconf['stats_url_add']; }
else { $sURL_add = '&sub=%s'; }
$out .= '<ul class="indexlist">'."\n";
foreach ($stats as $stat) {
$out .= '<li'.(isset($stat['class'])?' class="'.$stat['class'].'"':'').'>';
$sURL = str_replace('%i', $stat['name'], $sURL_base);
$sURL = str_replace('%a', '', $sURL);
$sURL = str_replace('%s', '', $sURL);
$out .= '<a href="'.$sURL.'">'.$stat['name'].'</a>';
if (isset($stat['sub']) && count($stat['sub'])) {
$sprt = array();
foreach ($stat['sub'] as $ssub) {
$sURL = str_replace('%i', $stat['name'], $sURL_base);
$sURL = str_replace('%a', $sURL_add, $sURL);
$sURL = str_replace('%s', $ssub, $sURL);
$sprt[] = '<a href="'.$sURL.'">'.$ssub.'</a>';
}
$out .= ' <span class="subs">('.implode(', ', $sprt).')</span>';
}
$out .= '</li>'."\n";
}
$out .= '</ul>'."\n";
$out .= $this->h_page_footer();
$out .= '</body></html>'."\n";
return $out;
}
private function page_overview($pconf, $graph_extras = null) {
// create an overview HTML page (including graphs) and return it in a string
$td = $this->mod_textdomain;
$ptitle = isset($pconf['title_page'])?$pconf['title_page']:dgettext($td, 'RRD statistics overview');
$out = '<!DOCTYPE html>'."\n";
$out .= '<html><head>'."\n";
$out .= '<title>'.$ptitle.'</title>'."\n";
$out .= '<style type="text/css">'."\n";
if (isset($pconf['style_base'])) { $out .= $pconf['style_base']; }
else {
$out .= 'h1 { font-weight: bold; font-size: 1.5em; }'."\n";
$out .= 'h2 { font-weight: bold; font-size: 1em; margin: 0.5em 0; }'."\n";
$out .= '.footer { font-size: 0.75em; margin: 0.5em 0; }'."\n";
$out .= 'img.rrdgraph { border: none; }'."\n";
}
if (isset($pconf['style'])) { $out .= $pconf['style']; }
$out .= '</style>'."\n";
$out .= '</head>'."\n";
$out .= '<body>'."\n";
$out .= '<h1>'.$ptitle.'</h1>'."\n";
if (isset($pconf['text_intro']) && strlen($pconf['text_intro'])) {
$out .= '<p class="intro">'.$pconf['text_intro'].'</p>';
}
$stats = $this->h_page_statsArray($pconf);
if (isset($pconf['stats_url'])) { $sURL_base = $pconf['stats_url']; }
else { $sURL_base = '?stat=%i%a'; }
if (isset($pconf['stats_url_add'])) { $sURL_add = $pconf['stats_url_add']; }
else { $sURL_add = '&sub=%s'; }
$default_num_cols = $GLOBALS['ua']->isMobile() ? 1 : 2;
$num_cols = is_numeric($pconf['num_rows'] ?? null) ? $pconf['num_rows'] : $default_num_cols;
$num_rows = ceil(count($stats) / $num_cols);
$out .= '<table class="overview">'."\n";
for ($row = 0; $row < $num_rows; $row++) {
$out .= '<tr>'."\n";
for ($col = 0; $col < $num_cols; $col++) {
$idx = $row * $num_cols + $col;
$out .= '<td>'."\n";
if ($idx < count($stats)) {
@list($sname, $s_psub) = explode('|', $stats[$idx]['name'], 2);
$s_psname = 'page'.(isset($s_psub)?'.'.$s_psub:'');
$g_sub = $this->config_all[$sname][$s_psname]['graph_sub'] ?? '';
if (isset($this->config_all[$sname][$s_psname]['title_page'])) {
$s_ptitle = $this->config_all[$sname][$s_psname]['title_page'];
}
elseif (isset($this->config_all[$sname]['page']['title_page'])) {
$s_ptitle = $this->config_all[$sname]['page']['title_page'];
}
else {
$s_ptitle = isset($s_psub)
?sprintf(dgettext($td, '%s (%s) statistics'), $sname, $s_psub)
:sprintf(dgettext($td, '%s statistics'), $sname);
}
if (!isset($pconf['hide_titles']) || !$pconf['hide_titles']) {