| 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(); |
| ?> |