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authorBryan Paradis <bryan.paradis@gmail.com>2014-01-22 23:09:02 -0500
committerBryan Paradis <bryan.paradis@gmail.com>2014-01-22 23:09:02 -0500
commit3f126784b31d5b5011fb10be7802cf122d953d16 (patch)
tree65bc82e56f83cbbad8951e2c28b77028d08443f4 /config/vnstat2/vnstat_php_frontend/graph.php
parent238612a72478ce9c00d25b31f9a7516a69f996c5 (diff)
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added vnstat_php_frontend moving away from tar
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diff --git a/config/vnstat2/vnstat_php_frontend/graph.php b/config/vnstat2/vnstat_php_frontend/graph.php
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+<?php
+ //
+ // vnStat PHP frontend (c)2006-2010 Bjorge Dijkstra (bjd@jooz.net)
+ //
+ // 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; either version 2 of the License, or
+ // (at your option) any later version.
+ //
+ // 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ //
+ //
+ // see file COPYING or at http://www.gnu.org/licenses/gpl.html
+ // for more information.
+ //
+ require 'config.php';
+ require 'localize.php';
+ require 'vnstat.php';
+
+ validate_input();
+
+ require "./themes/$style/theme.php";
+
+ function allocate_color($im, $colors)
+ {
+ return imagecolorallocatealpha($im, $colors[0], $colors[1], $colors[2], $colors[3]);
+ }
+
+ function init_image()
+ {
+ global $im, $xlm, $xrm, $ytm, $ybm, $iw, $ih,$graph, $cl, $iface, $colorscheme, $style;
+
+ if ($graph == 'none')
+ return;
+
+ //
+ // image object
+ //
+ $xlm = 70;
+ $xrm = 20;
+ $ytm = 35;
+ $ybm = 60;
+ if ($graph == 'small')
+ {
+ $iw = 300 + $xrm + $xlm;
+ $ih = 100 + $ytm + $ybm;
+ }
+ else
+ {
+ $iw = 600 + $xrm + $xlm;
+ $ih = 200 + $ytm + $ybm;
+ }
+
+ $im = imagecreatetruecolor($iw,$ih);
+
+ //
+ // colors
+ //
+ $cs = $colorscheme;
+ $cl['image_background'] = allocate_color($im, $cs['image_background']);
+ $cl['background'] = allocate_color($im, $cs['graph_background']);
+ $cl['background_2'] = allocate_color($im, $cs['graph_background_2']);
+ $cl['grid_stipple_1'] = allocate_color($im, $cs['grid_stipple_1']);
+ $cl['grid_stipple_2'] = allocate_color($im, $cs['grid_stipple_2']);
+ $cl['text'] = allocate_color($im, $cs['text']);
+ $cl['border'] = allocate_color($im, $cs['border']);
+ $cl['rx'] = allocate_color($im, $cs['rx']);
+ $cl['rx_border'] = allocate_color($im, $cs['rx_border']);
+ $cl['tx'] = allocate_color($im, $cs['tx']);
+ $cl['tx_border'] = allocate_color($im, $cs['tx_border']);
+
+ imagefilledrectangle($im,0,0,$iw,$ih,$cl['image_background']);
+ imagefilledrectangle($im,$xlm,$ytm,$iw-$xrm,$ih-$ybm, $cl['background']);
+
+ $x_step = ($iw - $xlm - $xrm) / 12;
+ $depth = ($x_step / 8) + 4;
+ imagefilledpolygon($im, array($xlm, $ytm, $xlm, $ih - $ybm, $xlm - $depth, $ih - $ybm + $depth, $xlm - $depth, $ytm + $depth), 4, $cl['background_2']);
+ imagefilledpolygon($im, array($xlm, $ih - $ybm, $xlm - $depth, $ih - $ybm + $depth, $iw - $xrm - $depth, $ih - $ybm + $depth, $iw - $xrm, $ih - $ybm), 4, $cl['background_2']);
+
+ // draw title
+ $text = T('Traffic data for')." $iface";
+ $bbox = imagettfbbox(10, 0, GRAPH_FONT, $text);
+ $textwidth = $bbox[2] - $bbox[0];
+ imagettftext($im, 10, 0, ($iw-$textwidth)/2, ($ytm/2), $cl['text'], GRAPH_FONT, $text);
+
+ }
+
+ function draw_border()
+ {
+ global $im,$cl,$iw,$ih;
+
+ imageline($im, 0, 0,$iw-1, 0, $cl['border']);
+ imageline($im, 0,$ih-1,$iw-1,$ih-1, $cl['border']);
+ imageline($im, 0, 0, 0,$ih-1, $cl['border']);
+ imageline($im, $iw-1, 0,$iw-1,$ih-1, $cl['border']);
+ }
+
+ function draw_grid($x_ticks, $y_ticks)
+ {
+ global $im, $cl, $iw, $ih, $xlm, $xrm, $ytm, $ybm;
+ $x_step = ($iw - $xlm - $xrm) / $x_ticks;
+ $y_step = ($ih - $ytm - $ybm) / $y_ticks;
+
+ $depth = 10;//($x_step / 8) + 4;
+
+ $ls = array($cl['grid_stipple_1'],$cl['grid_stipple_2']);
+ imagesetstyle($im, $ls);
+ for ($i=$xlm;$i<=($iw-$xrm); $i += $x_step)
+ {
+ imageline($im, $i, $ytm, $i, $ih - $ybm, IMG_COLOR_STYLED);
+ imageline($im, $i, $ih - $ybm, $i - $depth, $ih - $ybm + $depth, IMG_COLOR_STYLED);
+ }
+ for ($i=$ytm;$i<=($ih-$ybm); $i += $y_step)
+ {
+ imageline($im, $xlm, $i, $iw - $xrm, $i, IMG_COLOR_STYLED);
+ imageline($im, $xlm, $i, $xlm - $depth, $i + $depth, IMG_COLOR_STYLED);
+ }
+ imageline($im, $xlm, $ytm, $xlm, $ih - $ybm, $cl['border']);
+ imageline($im, $xlm, $ih - $ybm, $iw - $xrm, $ih - $ybm, $cl['border']);
+ }
+
+
+ function draw_data($data)
+ {
+ global $im,$cl,$iw,$ih,$xlm,$xrm,$ytm,$ybm;
+
+ sort($data);
+
+ $x_ticks = count($data);
+ $y_ticks = 10;
+ $y_scale = 1;
+ $prescale = 1;
+ $unit = 'K';
+ $offset = 0;
+ $gr_h = $ih - $ytm - $ybm;
+ $x_step = ($iw - $xlm - $xrm) / $x_ticks;
+ $y_step = ($ih - $ytm - $ybm) / $y_ticks;
+ $bar_w = ($x_step / 2) ;
+
+ //
+ // determine scale
+ //
+ $low = 99999999999;
+ $high = 0;
+ for ($i=0; $i<$x_ticks; $i++)
+ {
+ if ($data[$i]['rx'] < $low)
+ $low = $data[$i]['rx'];
+ if ($data[$i]['tx'] < $low)
+ $low = $data[$i]['tx'];
+ if ($data[$i]['rx'] > $high)
+ $high = $data[$i]['rx'];
+ if ($data[$i]['tx'] > $high)
+ $high = $data[$i]['tx'];
+ }
+
+ while ($high > ($prescale * $y_scale * $y_ticks))
+ {
+ $y_scale = $y_scale * 2;
+ if ($y_scale >= 1024)
+ {
+ $prescale = $prescale * 1024;
+ $y_scale = $y_scale / 1024;
+ if ($unit == 'K')
+ $unit = 'M';
+ else if ($unit == 'M')
+ $unit = 'G';
+ else if ($unit == 'G')
+ $unit = 'T';
+ }
+ }
+
+ draw_grid($x_ticks, $y_ticks);
+
+ //
+ // graph scale factor (per pixel)
+ //
+ imagesetthickness($im, 1);
+ $sf = ($prescale * $y_scale * $y_ticks) / $gr_h;
+
+ if ($data[0] == 'nodata')
+ {
+ $text = 'no data available';
+ $bbox = imagettfbbox(10, 0, GRAPH_FONT, $text);
+ $textwidth = $bbox[2] - $bbox[0];
+ imagettftext($im, 10, 0, ($iw-$textwidth)/2, $ytm + 80, $cl['text'], GRAPH_FONT, $text);
+ }
+ else
+ {
+ //
+ // draw bars
+ //
+ for ($i=0; $i<$x_ticks; $i++)
+ {
+ $x = $xlm + ($i * $x_step);
+ $y = $ytm + ($ih - $ytm - $ybm) - (($data[$i]['rx'] - $offset) / $sf);
+
+ $depth = $x_step / 8;
+ $space = 0;
+
+ $x1 = $x;
+ $y1 = $y;
+ $x2 = $x + $bar_w - $space;
+ $y2 = $ih - $ybm;
+
+ imagefilledrectangle($im, $x1, $y1, $x2, $y2, $cl['rx']);
+ imagerectangle($im, $x1, $y1, $x2, $y2, $cl['rx_border']);
+
+ imagefilledrectangle($im, $x1 - $depth, $y1 + $depth, $x2 -$depth, $y2 + $depth, $cl['rx']);
+ imagerectangle($im, $x1 - $depth, $y1 + $depth, $x2 - $depth, $y2 + $depth, $cl['rx_border']);
+
+ imagefilledpolygon($im, array($x1, $y1, $x2, $y1, $x2 - $depth, $y1 + $depth, $x1 - $depth, $y1 + $depth), 4, $cl['rx']);
+ imagepolygon($im, array($x1, $y1, $x2, $y1, $x2 - $depth, $y1 + $depth, $x1 - $depth, $y1 + $depth), 4, $cl['rx_border']);
+ imagefilledpolygon($im, array($x2, $y1, $x2, $y2, $x2 - $depth, $y2 + $depth, $x2 - $depth, $y1 + $depth), 4, $cl['rx']);
+ imagepolygon($im, array($x2, $y1, $x2, $y2, $x2 - $depth, $y2 + $depth, $x2 - $depth, $y1 + $depth), 4, $cl['rx_border']);
+
+ $y1 = $ytm + ($ih - $ytm - $ybm) - (($data[$i]['tx'] - $offset) / $sf);
+ $x1 = $x1 + $bar_w;
+ $x2 = $x2 + $bar_w;
+
+ imagefilledrectangle($im, $x1, $y1, $x2, $y2, $cl['tx']);
+ imagerectangle($im, $x1, $y1, $x2, $y2, $cl['tx_border']);
+
+ imagefilledrectangle($im, $x1 - $depth, $y1 + $depth, $x2 - $depth, $y2 + $depth, $cl['tx']);
+ imagerectangle($im, $x1 - $depth, $y1 + $depth, $x2 - $depth, $y2 + $depth, $cl['tx_border']);
+
+ imagefilledpolygon($im, array($x1, $y1, $x2, $y1, $x2 - $depth, $y1 + $depth, $x1 - $depth, $y1 + $depth), 4, $cl['tx']);
+ imagepolygon($im, array($x1, $y1, $x2, $y1, $x2 - $depth, $y1 + $depth, $x1 - $depth, $y1 + $depth), 4, $cl['tx_border']);
+ imagefilledpolygon($im, array($x2, $y1, $x2, $y2, $x2 - $depth, $y2 + $depth, $x2 - $depth, $y1 + $depth), 4, $cl['tx']);
+ imagepolygon($im, array($x2, $y1, $x2, $y2, $x2 - $depth, $y2 + $depth, $x2 - $depth, $y1 + $depth), 4, $cl['tx_border']);
+ }
+
+ //
+ // axis labels
+ //
+ for ($i=0; $i<=$y_ticks; $i++)
+ {
+ $label = ($i * $y_scale).$unit;
+ $bbox = imagettfbbox(8, 0, GRAPH_FONT, $label);
+ $textwidth = $bbox[2] - $bbox[0];
+ imagettftext($im, 8, 0, $xlm - $textwidth - 16, ($ih - $ybm) - ($i * $y_step) + 8 + $depth, $cl['text'], GRAPH_FONT, $label);
+ }
+
+ for ($i=0; $i<$x_ticks; $i++)
+ {
+ $label = $data[$i]['img_label'];
+ $bbox = imagettfbbox(9, 0, GRAPH_FONT, $label);
+ $textwidth = $bbox[2] - $bbox[0];
+ imagettftext($im, 9, 0, $xlm + ($i * $x_step) + ($x_step / 2) - ($textwidth / 2) - $depth - 4, $ih - $ybm + 20 + $depth, $cl['text'], GRAPH_FONT, $label);
+ }
+ }
+
+ draw_border();
+
+
+ //
+ // legend
+ //
+ imagefilledrectangle($im, $xlm, $ih-$ybm+39, $xlm+8,$ih-$ybm+47,$cl['rx']);
+ imagerectangle($im, $xlm, $ih-$ybm+39, $xlm+8,$ih-$ybm+47,$cl['text']);
+ imagettftext($im, 8,0, $xlm+14, $ih-$ybm+48,$cl['text'], GRAPH_FONT,'bytes in');
+
+ imagefilledrectangle($im, $xlm+120 , $ih-$ybm+39, $xlm+128,$ih-$ybm+47,$cl['tx']);
+ imagerectangle($im, $xlm+120, $ih-$ybm+39, $xlm+128,$ih-$ybm+47,$cl['text']);
+ imagettftext($im, 8,0, $xlm+134, $ih-$ybm+48,$cl['text'], GRAPH_FONT,'bytes out');
+ }
+
+ function output_image()
+ {
+ global $page,$hour,$day,$month,$im,$iface;
+
+ if ($page == 'summary')
+ return;
+
+ init_image();
+
+ if ($page == 'h')
+ {
+ draw_data($hour);
+ }
+ else if ($page == 'd')
+ {
+ draw_data($day);
+ }
+ else if ($page == 'm')
+ {
+ draw_data($month);
+ }
+
+ header('Content-type: image/png');
+ imagepng($im);
+ }
+
+ get_vnstat_data();
+ output_image();
+?>