489 lines
18 KiB
PHP
489 lines
18 KiB
PHP
<?php defined('SYSPATH') OR die('No direct access allowed.');
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/*
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*
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* RRDTool Helper Class
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*/
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class rrd_Core {
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public static function color_inverse($color){
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$color = str_replace('#', '', $color);
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if (strlen($color) != 6){ return '000000'; }
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$rgb = '';
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for ($x=0;$x<3;$x++){
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$c = 255 - hexdec(substr($color,(2*$x),2));
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$c = ($c < 0) ? 0 : dechex($c);
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$rgb .= (strlen($c) < 2) ? '0'.$c : $c;
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}
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return '#'.$rgb;
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}
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/*
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* Color Function
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* Concept by Stefan Triep
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*/
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public static function color($num=0 , $alpha='FF', $scheme=''){
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$colors = array();
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$value = array('cc','ff','99','66');
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$num = intval($num);
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# check if colour scheme entry exists
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# fall back to old method if not found
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if ( isset( $scheme["$num"] ) ){
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$color = $scheme["$num"] . $alpha;
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return $color;
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}
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foreach($value as $ri){
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for ($z=1;$z<8;$z++) {
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$color = "#";
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if ( ($z & 4) >= 1 ){
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$color .= "$ri";
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} else {
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$color .= "00";
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}
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if ( ($z & 2) >= 1 ){
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$color .= "$ri";
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} else {
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$color .= "00";
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}
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if ( ($z & 1) >= 1 ){
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$color .= "$ri";
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} else {
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$color .= "00";
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}
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$icolor = rrd::color_inverse($color);
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$pos = array_search($color,$colors);
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$ipos = array_search($icolor,$colors);
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if ( $pos == false ) {
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$colors[] = $color . $alpha;
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}
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if ( $ipos == false ) {
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$colors[] = $icolor . $alpha;
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}
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}
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}
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if (array_key_exists($num, $colors)) {
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return $colors[$num];
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} else {
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return $colors[0];
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}
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}
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/*
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* Gradient Function
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* Concept by Stefan Triep
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*/
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public static function gradient($vname=FALSE, $start_color='#0000a0', $end_color='#f0f0f0', $label=FALSE, $steps=20, $lower=FALSE){
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if($vname === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() First Parameter 'vname' is missing");
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}
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if(preg_match('/^#?([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})/i',$start_color,$matches)){
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$r1=hexdec($matches[1]);
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$g1=hexdec($matches[2]);
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$b1=hexdec($matches[3]);
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}else{
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() Wrong Color Format: '".$start_color."'");
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}
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if(preg_match('/^#?([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})/i',$end_color,$matches)){
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$r2=hexdec($matches[1]);
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$g2=hexdec($matches[2]);
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$b2=hexdec($matches[3]);
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}else{
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() Wrong Color Format: '".$end_color."'");
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}
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$diff_r=$r2-$r1;
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$diff_g=$g2-$g1;
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$diff_b=$b2-$b1;
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$spline = "";
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$spline_vname = "var".substr(sha1(rand()),1,4);
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if(preg_match('/^([0-9]{1,3})%$/', $lower, $matches)){
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if($matches[1] > 100)
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() Lower gradient start > 100% is not allowed: '".$lower."'");
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$lower = $matches[1];
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$spline .= sprintf("CDEF:%sminimum=%s,100,/,%d,* ", $vname, $vname, $lower);
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}elseif(preg_match('/^([0-9]+)$/', $lower, $matches)){
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$lower = $matches[1];
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$spline .= sprintf("CDEF:%sminimum=%s,%d,- ", $vname, $vname, $lower);
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}else{
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$lower = 0;
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$spline .= sprintf("CDEF:%sminimum=%s,%s,- ", $vname, $vname, $vname);
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}
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# debug
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# $spline .= sprintf("GPRINT:%sminimum:MAX:\"minumum %%lf\\n\" ",$vname);
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for ($i=$steps; $i>0; $i--){
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$spline .= sprintf("CDEF:%s%d=%s,%sminimum,-,%d,/,%d,*,%sminimum,+ ",$spline_vname,$i,$vname,$vname,$steps,$i,$vname );
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# debug
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# $spline .= sprintf("GPRINT:%s%d:MAX:\"%22d %%lf\\n\" ",$spline_vname,$i,$i);
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}
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for ($i=$steps; $i>0; $i--){
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$factor=$i / $steps;
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$r=round($r1 + $diff_r * $factor);
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$g=round($g1 + $diff_g * $factor);
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$b=round($b1 + $diff_b * $factor);
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if (($i==$steps) and ($label!=FALSE)){
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$spline .= sprintf("AREA:%s%d#%02X%02X%02X:\"%s\" ", $spline_vname,$i,$r,$g,$b,$label);
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}else{
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$spline .= sprintf("AREA:%s%d#%02X%02X%02X ", $spline_vname,$i,$r,$g,$b);
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}
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}
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return $spline;
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}
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public static function cut($string, $length=18, $align='left'){
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if(strlen($string) > $length){
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$string = substr($string,0,($length-3))."...";
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}
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if($align == 'left'){
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$format = "%-".$length."s";
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}else{
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$format = "%".$length."s";
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}
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$s = sprintf($format,$string);
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return $s;
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}
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public static function area($vname=FALSE, $color=FALSE, $text=FALSE, $stack=FALSE){
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$line = "";
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if($vname === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() First Parameter 'vname' is missing");
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}else{
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$line .= "AREA:".$vname;
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}
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if($color === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() Second Parameter 'color' is missing");
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}else{
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$line .= $color;
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}
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$line .= ":\"$text\"";
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if($stack != FALSE){
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$line .= ":STACK";
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}
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$line .= " ";
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return $line;
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}
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public static function line($type=1,$vname=FALSE, $color=FALSE, $text=FALSE, $stack=FALSE){
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$line = "";
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if($vname === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() First Parameter 'vname' is missing");
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}else{
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$line .= "LINE".$type.":".$vname;
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}
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if($color === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() Second Parameter 'color' is missing");
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}else{
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$line .= $color;
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}
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$line .= ":\"$text\"";
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if($stack != FALSE){
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$line .= ":STACK";
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}
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$line .= " ";
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return $line;
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}
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public static function line1($vname=FALSE, $color=FALSE, $text=FALSE, $stack=FALSE){
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return rrd::line(1,$vname, $color,$text, $stack);
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}
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public static function line2($vname=FALSE, $color=FALSE, $text=FALSE, $stack=FALSE){
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return rrd::line(2,$vname, $color,$text, $stack);
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}
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public static function line3($vname=FALSE, $color=FALSE, $text=FALSE, $stack=FALSE){
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return rrd::line(3,$vname, $color,$text, $stack);
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}
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public static function gprint($vname=FALSE, $cf="AVERAGE", $text="%6.2lf %s"){
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$line = "";
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if($vname === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() First Parameter 'vname' is missing");
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}
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if(is_array($cf)){
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foreach($cf as $key => $val){
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$line .= sprintf("GPRINT:%s:%s:",$vname,$val);
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if($key == sizeof($cf)-1){
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$line .= '"'.$text.' '.ucfirst(strtolower($val)).'\\l" ';
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}else{
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$line .= '"'.$text.' '.ucfirst(strtolower($val)).'" ';
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}
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}
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}else{
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$line .= sprintf("GPRINT:%s:%s:",$vname,$cf);
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$line .= '"'.$text.'" ';
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}
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return $line;
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}
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/*
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* Function to modify alignment of gprint
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*/
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public static function gprinta($vname=FALSE, $cf="AVERAGE", $text="%6.2lf %s", $align=""){
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$line = "";
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if($vname === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() First Parameter 'vname' is missing");
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}
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if($align != ""){
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$align = '\\' . $align;
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}
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if(is_array($cf)){
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foreach($cf as $key => $val){
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$line .= sprintf("GPRINT:%s:%s:",$vname,$val);
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if(($key == sizeof($cf)-1)and($align != "")){
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$line .= '"'.$text.' '.ucfirst(strtolower($val)).$align.'" ';
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}else{
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$line .= '"'.$text.' '.ucfirst(strtolower($val)).'" ';
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}
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}
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}else{
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$line .= sprintf("GPRINT:%s:%s:",$vname,$cf);
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$line .= '"'.$text.'" ';
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}
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return $line;
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}
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public static function def($vname=FALSE, $rrdfile=FALSE, $ds=FALSE, $cf="AVERAGE"){
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$line = "";
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if($vname === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() First Parameter 'vname' is missing");
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}
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if($rrdfile === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() Second Parameter 'rrdfile' is missing");
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}
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if($rrdfile === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() Third Parameter 'ds' is missing");
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}
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$line = sprintf("DEF:%s=%s:%s:%s ",$vname,$rrdfile,$ds,$cf);
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return $line;
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}
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public static function cdef($vname=FALSE, $rpn=FALSE){
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$line = "";
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if($vname === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() First Parameter 'vname' is missing");
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}
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if($rpn === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() Second Parameter 'rpn' is missing");
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}
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$line = sprintf("CDEF:%s=%s ",$vname,$rpn);
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return $line;
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}
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public static function vdef($vname=FALSE, $rpn=FALSE){
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$line = "";
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if($vname === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() First Parameter 'vname' is missing");
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}
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if($rpn === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() Second Parameter 'rpn' is missing");
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}
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$line = sprintf("VDEF:%s=%s ",$vname,$rpn);
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return $line;
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}
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public static function hrule($value=FALSE, $color=FALSE, $text=FALSE){
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$line = "";
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if($value === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ ."() First Parameter 'value' is missing");
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}
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if($color === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() Second Parameter 'color' is missing");
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}
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if($value == "~" ) {
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return "";
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}
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$line = sprintf("HRULE:%s%s:\"%s\" ",$value,$color,$text);
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return $line;
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}
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public static function comment($text=FALSE){
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$line = sprintf("COMMENT:\"%s\" ", $text);
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return $line;
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}
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public static function tick($vname=FALSE, $color=FALSE, $fraction=FALSE, $label=FALSE){
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if($vname === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() First Parameter 'value' is missing");
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}
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if($color === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() Second Parameter 'color' is missing");
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}
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$line = sprintf("TICK:%s%s",$vname,$color);
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if($fraction != FALSE)
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$line .= ":$fraction";
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if($label != FALSE)
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$line .= ":$label";
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$line .= " ";
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return $line;
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}
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public static function alerter($vname=FALSE, $label=FALSE, $warning=FALSE, $critical=FALSE, $opacity = 'ff', $unit, $color_green = '#00ff00', $color_btw = '#ffff00', $color_red = '#ff0000', $line_col = '#0000ff') {
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if($vname === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() First Parameter 'vname' is missing");
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}
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if($label === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() Second Parameter 'label' is missing");
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}
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if($warning === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() Third Parameter 'warning' is missing");
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}
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if($critical === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() Fourth Parameter 'critical' is missing");
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}
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$line = "";
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$green_vname = "var".substr(sha1(rand()),1,4);
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$btw_vname = "var".substr(sha1(rand()),1,4);
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$blue_vname = "var".substr(sha1(rand()),1,4);
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$red_vname = "var".substr(sha1(rand()),1,4);
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if($warning < $critical){
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$line .= "CDEF:".$green_vname."=".$vname.",".$warning.",LT,".$vname.",UNKN,IF ";
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$line .= "CDEF:".$btw_vname."=".$vname.",".$critical.",LT,".$vname.",UNKN,IF ";
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$line .= "CDEF:".$blue_vname."=".$btw_vname.",".$warning.",GE,".$btw_vname.",UNKN,IF ";
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$line .= "CDEF:".$red_vname."=".$vname.",".$critical.",GE,".$vname.",UNKN,IF ";
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} else {
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$line .= "CDEF:".$green_vname."=".$vname.",".$warning.",GT,".$vname.",UNKN,IF ";
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$line .= "CDEF:".$btw_vname."=".$vname.",".$critical.",GE,".$vname.",UNKN,IF ";
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$line .= "CDEF:".$blue_vname."=".$btw_vname.",".$warning.",LE,".$btw_vname.",UNKN,IF ";
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$line .= "CDEF:".$red_vname."=".$vname.",".$critical.",LT,".$vname.",UNKN,IF ";
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}
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$line .= rrd::area($green_vname, $color_green.$opacity);
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$line .= rrd::area($blue_vname, $color_btw.$opacity);
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$line .= rrd::area($red_vname, $color_red.$opacity);
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$line .= rrd::line1($vname,$line_col,$label);
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return $line;
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}
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public static function alerter_gr($vname=FALSE,$label=FALSE,$warning=FALSE,$critical=FALSE,$opacity='ff',$unit,$color_green='#00ff00',$color_btw='#ffff00',$color_red='#ff0000',$line_col='#0000ff',$start_color="#ffffff") {
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if($vname === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() First Parameter 'vname' is missing");
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}
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if($label === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() Second Parameter 'label' is missing");
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}
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if($warning === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() Third Parameter 'warning' is missing");
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}
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if($critical === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() Fourth Parameter 'critical' is missing");
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}
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$line = "";
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$green_vname = "var".substr(sha1(rand()),1,4);
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$btw_vname = "var".substr(sha1(rand()),1,4);
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$blue_vname = "var".substr(sha1(rand()),1,4);
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$red_vname = "var".substr(sha1(rand()),1,4);
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$line = "";
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if($warning < $critical){
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$line .= "CDEF:".$green_vname."=".$vname.",".$warning.",LT,".$vname.",UNKN,IF ";
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$line .= "CDEF:".$btw_vname."=".$vname.",".$critical.",LT,".$vname.",UNKN,IF ";
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$line .= "CDEF:".$blue_vname."=".$btw_vname.",".$warning.",GE,".$btw_vname.",UNKN,IF ";
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$line .= "CDEF:".$red_vname."=".$vname.",".$critical.",GE,".$vname.",UNKN,IF ";
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} else {
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$line .= "CDEF:".$green_vname."=".$vname.",".$warning.",GT,".$vname.",UNKN,IF ";
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$line .= "CDEF:".$btw_vname."=".$vname.",".$critical.",GE,".$vname.",UNKN,IF ";
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$line .= "CDEF:".$blue_vname."=".$btw_vname.",".$warning.",LE,".$btw_vname.",UNKN,IF ";
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$line .= "CDEF:".$red_vname."=".$vname.",".$critical.",LT,".$vname.",UNKN,IF ";
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}
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$line .= rrd::gradient($green_vname, $start_color, $color_green.$opacity);
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$line .= rrd::gradient($blue_vname, $start_color, $color_btw.$opacity);
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$line .= rrd::gradient($red_vname, $start_color, $color_red.$opacity);
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$line .= rrd::line1($vname,$line_col,$label);
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return $line;
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}
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public static function ticker($vname=FALSE, $warning=FALSE, $critical=FALSE, $fraction = -0.05, $opacity = 'ff', $color_green = '#00ff00', $color_btw = '#ffff00', $color_red = '#ff0000') {
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if($vname === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() First Parameter 'vname' is missing");
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}
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if($warning === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() Second Parameter 'warning' is missing");
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}
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if($critical === FALSE){
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throw new Kohana_exception("rrd::". __FUNCTION__ . "() Third Parameter 'critical' is missing");
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}
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$line = "";
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$green_vname = "var".substr(sha1(rand()),1,4);
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$btw_vname = "var".substr(sha1(rand()),1,4);
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$blue_vname = "var".substr(sha1(rand()),1,4);
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$red_vname = "var".substr(sha1(rand()),1,4);
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$green2_vname = "var".substr(sha1(rand()),1,4);
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$line .= "CDEF:".$green_vname."=".$vname.",".$warning.",LT,".$vname.",UNKN,IF ";
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$line .= "CDEF:".$btw_vname."=".$vname.",".$critical.",LT,".$vname.",UNKN,IF ";
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$line .= "CDEF:".$blue_vname."=".$btw_vname.",".$warning.",GE,".$btw_vname.",UNKN,IF ";
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$line .= "CDEF:".$red_vname."=".$vname.",".$critical.",GE,".$vname.",UNKN,IF ";
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$line .= "CDEF:".$green2_vname."=".$green_vname.",0,EQ,0.000001,".$green_vname.",IF ";
|
|
$line .= rrd::tick($green2_vname, $color_green.$opacity, $fraction);
|
|
$line .= rrd::tick($blue_vname, $color_btw.$opacity, $fraction);
|
|
$line .= rrd::tick($red_vname, $color_red.$opacity, $fraction);
|
|
|
|
return $line;
|
|
}
|
|
|
|
public static function darkteint(){
|
|
$line = '';
|
|
$line .= '--color=BACK#000000 ';
|
|
$line .= '--color=FONT#F7F7F7 ';
|
|
$line .= '--color=SHADEA#ffffff ';
|
|
$line .= '--color=SHADEB#ffffff ';
|
|
$line .= '--color=CANVAS#000000 ';
|
|
$line .= '--color=GRID#00991A ';
|
|
$line .= '--color=MGRID#00991A ';
|
|
$line .= '--color=ARROW#00FF00 ';
|
|
|
|
return $line;
|
|
}
|
|
|
|
# http://stackoverflow.com/questions/3512311/how-to-generate-lighter-darker-color-with-php
|
|
public static function colbright($hex, $steps) {
|
|
if($hex === FALSE){
|
|
throw new Kohana_exception("rrd::". __FUNCTION__ . "() First Parameter 'hex' is missing");
|
|
}
|
|
if($steps === FALSE){
|
|
throw new Kohana_exception("rrd::". __FUNCTION__ . "() Second Parameter 'steps' is missing");
|
|
}
|
|
// Steps should be between -255 and 255. Negative = darker, positive = lighter
|
|
$steps = max(-255, min(255, $steps));
|
|
|
|
// Normalize into a six character long hex string
|
|
$hex = str_replace('#', '', $hex);
|
|
if (strlen($hex) == 3) {
|
|
$hex = str_repeat(substr($hex,0,1), 2).str_repeat(substr($hex,1,1), 2).str_repeat(substr($hex,2,1), 2);
|
|
}
|
|
|
|
// Split into three parts: R, G and B
|
|
$color_parts = str_split($hex, 2);
|
|
$return = '#';
|
|
|
|
foreach ($color_parts as $color) {
|
|
$color = hexdec($color); // Convert to decimal
|
|
$color = max(0,min(255,$color + $steps)); // Adjust color
|
|
$return .= str_pad(dechex($color), 2, '0', STR_PAD_LEFT); // Make two char hex code
|
|
}
|
|
return $return;
|
|
}
|
|
|
|
public static function debug($data=FALSE){
|
|
if($data != FALSE){
|
|
ob_start();
|
|
|
|
var_dump($data);
|
|
$var_dump = ob_get_contents();
|
|
$var_dump = preg_replace('/(HRULE|VDEF|DEF|CDEF|GPRINT|LINE|AREA|COMMENT)/',"\n\${1}", $var_dump);
|
|
ob_end_clean();
|
|
throw new Kohana_exception("<pre>".$var_dump."</pre>");
|
|
}
|
|
}
|
|
|
|
}
|