diff options
Diffstat (limited to 'config/vnstat2/vnstat_php_frontend/graph.php')
| -rw-r--r-- | config/vnstat2/vnstat_php_frontend/graph.php | 303 |
1 files changed, 303 insertions, 0 deletions
diff --git a/config/vnstat2/vnstat_php_frontend/graph.php b/config/vnstat2/vnstat_php_frontend/graph.php new file mode 100644 index 00000000..fb00be67 --- /dev/null +++ b/config/vnstat2/vnstat_php_frontend/graph.php @@ -0,0 +1,303 @@ +<?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(); +?> |