diff options
Diffstat (limited to 'config/vnstat2/vnstat_php_frontend/graph_svg.php')
| -rw-r--r-- | config/vnstat2/vnstat_php_frontend/graph_svg.php | 362 |
1 files changed, 362 insertions, 0 deletions
diff --git a/config/vnstat2/vnstat_php_frontend/graph_svg.php b/config/vnstat2/vnstat_php_frontend/graph_svg.php new file mode 100644 index 00000000..8992ed12 --- /dev/null +++ b/config/vnstat2/vnstat_php_frontend/graph_svg.php @@ -0,0 +1,362 @@ +<?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/$style/theme.php"; + + function svg_create($width, $height) + { + header('Content-type: image/svg+xml'); + print "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n"; + print "<svg width=\"$width\" height=\"$height\" version=\"1.2\" baseProfile=\"tiny\" xmlns=\"http://www.w3.org/2000/svg\">\n"; + print "<g style=\"shape-rendering: crispEdges\">\n"; + } + + function svg_end() + { + print "</g>\n"; + print "</svg>\n"; + } + + function svg_options($options) + { + foreach ($options as $key => $value) { + print "$key=\"$value\" "; + } + } + + function svg_group($options) + { + print "<g "; + svg_options($options); + print ">\n"; + } + + function svg_group_end() + { + print "</g>\n"; + } + + function svg_text($x, $y, $text, $options = array()) + { + printf("<text x=\"%F\" y=\"%F\" ", $x, $y); + svg_options($options); + print ">$text</text>\n"; + } + + function svg_line($x1, $y1, $x2, $y2, $options = array()) + { + printf("<line x1=\"%F\" y1=\"%F\" x2=\"%F\" y2=\"%F\" ", $x1, $y1, $x2, $y2); + svg_options($options); + print "/>\n"; + } + + function svg_rect($x, $y, $w, $h, $options = array()) + { + printf("<rect x=\"%F\" y=\"%F\" width=\"%F\" height=\"%F\" ", $x, $y, $w, $h); + svg_options($options); + print "/>\n"; + } + + function svg_poly($points, $options = array()) + { + print "<polygon points=\""; + for ($p = 0; $p < count($points); $p += 2) { + printf("%F,%F ", $points[$p], $points[$p+1]); + } + svg_options($options); + print "\"/>\n"; + } + + function allocate_color($colors) + { + $col['rgb'] = sprintf("#%02X%02X%02X", $colors[0], $colors[1], $colors[2]); + $col['opacity'] = sprintf("%F", (127 - $colors[3]) / 127); + return $col; + } + + function init_image() + { + global $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 + $ybm; + } + + svg_create($iw, $ih); + + // + // colors + // + $cs = $colorscheme; + $cl['image_background'] = allocate_color($cs['image_background']); + $cl['background'] = allocate_color($cs['graph_background']); + $cl['background_2'] = allocate_color($cs['graph_background_2']); + $cl['grid_stipple_1'] = allocate_color($cs['grid_stipple_1']); + $cl['grid_stipple_2'] = allocate_color($cs['grid_stipple_2']); + $cl['text'] = allocate_color($cs['text']); + $cl['border'] = allocate_color($cs['border']); + $cl['rx'] = allocate_color($cs['rx']); + $cl['rx_border'] = allocate_color($cs['rx_border']); + $cl['tx'] = allocate_color($cs['tx']); + $cl['tx_border'] = allocate_color($cs['tx_border']); + + svg_rect(0, 0, $iw, $ih, array( 'stroke' => 'none', 'stroke-width' => 0, 'fill' => $cl['image_background']['rgb']) ); + svg_rect($xlm, $ytm, $iw-$xrm-$xlm, $ih-$ybm-$ytm, array( 'stroke' => 'none', 'stroke-width' => 0, 'fill' => $cl['background']['rgb']) ); + + $depth = 12; + svg_group( array( 'stroke' => 'none', 'stroke-width' => 0, 'fill' => $cl['background_2']['rgb'], 'fill-opacity' => $cl['background_2']['opacity']) ); + svg_poly(array($xlm, $ytm, $xlm, $ih - $ybm, $xlm - $depth, $ih - $ybm + $depth, $xlm - $depth, $ytm + $depth)); + svg_poly(array($xlm, $ih - $ybm, $xlm - $depth, $ih - $ybm + $depth, $iw - $xrm - $depth, $ih - $ybm + $depth, $iw - $xrm, $ih - $ybm)); + svg_group_end(); + + // draw title + $text = T('Traffic data for')." $iface"; + svg_text($iw / 2, ($ytm / 2), $text, array( 'stroke' => $cl['text'], 'fill' => $cl['text']['rgb'],'stroke-width' => 0, 'font-family' => SVG_FONT, 'font-weight' => 'bold', 'text-anchor' => 'middle' )); + } + + function draw_border() + { + global $cl, $iw, $ih; + svg_rect(1, 1, $iw-2, $ih-2, array( 'stroke' => $cl['border']['rgb'], 'stroke-opacity' => $cl['border']['opacity'], 'stroke-width' => 1, 'fill' => 'none') ); + } + + function draw_grid($x_ticks, $y_ticks) + { + global $cl, $iw, $ih, $xlm, $xrm, $ytm, $ybm; + $x_step = ($iw - $xlm - $xrm) / $x_ticks; + $y_step = ($ih - $ytm - $ybm) / $y_ticks; + + $depth = 12; + + svg_group( array( 'stroke' => $cl['grid_stipple_1']['rgb'], 'stroke-opacity' => $cl['grid_stipple_1']['opacity'], 'stroke-width' => '1px', 'stroke-dasharray' => '1,1' ) ); + for ($i = $xlm; $i <= ($iw - $xrm); $i += $x_step) + { + svg_line($i, $ytm, $i, $ih-$ybm); + svg_line($i, $ih-$ybm, $i-$depth, $ih-$ybm+$depth); + } + for ($i = $ytm; $i <= ($ih - $ybm); $i += $y_step) + { + svg_line($xlm, $i, $iw - $xrm, $i); + svg_line($xlm, $i, $xlm - $depth, $i + $depth); + } + svg_group_end(); + + svg_group( array( 'stroke' => $cl['border']['rgb'], 'stroke-width' => '1px', 'stroke-opacity' => $cl['border']['opacity'] ) ); + svg_line($xlm, $ytm, $xlm, $ih - $ybm); + svg_line($xlm, $ih - $ybm, $iw - $xrm, $ih - $ybm); + svg_group_end(); + } + + + function draw_data($data) + { + global $cl,$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) + // + $sf = ($prescale * $y_scale * $y_ticks) / $gr_h; + + if ($data[0] == 'nodata') + { + $text = 'no data available'; + svg_text($iw/2, $ytm + 80, $text, array( 'stroke' => $cl['text']['rgb'], 'fill' => $cl['text']['rgb'], 'stroke-width' => 0, 'font-family' => SVG_FONT, 'font-size' => '16pt', 'text-anchor' => 'middle') ); + } + else + { + // + // draw bars + // + for ($i=0; $i<$x_ticks; $i++) + { + $x = $xlm + ($i * $x_step); + $y = $ytm + ($ih - $ytm - $ybm) - (($data[$i]['rx'] - $offset) / $sf); + + $depth = ($x_ticks < 20) ? 8 : 6; + $space = 0; + + $x1 = (int)$x; + $y1 = (int)$y; + $w = (int)($bar_w - $space); + $h = (int)($ih - $ybm - $y); + $x2 = (int)($x + $bar_w - $space); + $y2 = (int)($ih - $ybm); + + svg_group( array( 'stroke' => $cl['rx_border']['rgb'], 'stroke-opacity' => $cl['rx_border']['opacity'], + 'stroke-width' => 1, 'stroke-linejoin' => 'round', + 'fill' => $cl['rx']['rgb'], 'fill-opacity' => $cl['rx']['opacity'] ) ); + svg_rect($x1, $y1, $w, $h); + svg_rect($x1 - $depth, $y1 + $depth, $w, $h); + svg_poly(array($x1, $y1, $x2, $y1, $x2 - $depth, $y1 + $depth, $x1 - $depth, $y1 + $depth)); + svg_poly(array($x2, $y1, $x2, $y2, $x2 - $depth, $y2 + $depth, $x2 - $depth, $y1 + $depth)); + svg_group_end(); + + $y1 = (int)($ytm + ($ih - $ytm - $ybm) - (($data[$i]['tx'] - $offset) / $sf)); + $x1 = (int)($x1 + $bar_w); + $x2 = (int)($x2 + $bar_w); + $w = (int)($bar_w - $space); + $h = (int)($ih - $ybm - $y1 - 1); + + svg_group( array( 'stroke' => $cl['tx_border']['rgb'], 'stroke-opacity' => $cl['tx_border']['opacity'], + 'stroke-width' => 1, 'stroke-linejoin' => 'round', + 'fill' => $cl['tx']['rgb'], 'fill-opacity' => $cl['tx']['opacity'] ) ); + svg_rect($x1, $y1, $w, $h); + svg_rect($x1 - $depth, $y1 + $depth, $w, $h); + svg_poly(array($x1, $y1, $x2, $y1, $x2 - $depth, $y1 + $depth, $x1 - $depth, $y1 + $depth)); + svg_poly(array($x2, $y1, $x2, $y2, $x2 - $depth, $y2 + $depth, $x2 - $depth, $y1 + $depth)); + svg_group_end(); + } + + // + // axis labels + // + svg_group( array( 'fill' => $cl['text']['rgb'], 'fill-opacity' => $cl['text']['opacity'], 'stroke-width' => '0', 'font-family' => SVG_FONT, 'font-size' => '10pt', 'text-anchor' => 'end' ) ); + for ($i=0; $i<=$y_ticks; $i++) + { + $label = ($i * $y_scale).$unit; + $tx = $xlm - 16; + $ty = (int)(($ih - $ybm) - ($i * $y_step) + 8 + $depth); + svg_text($tx, $ty, $label); + } + svg_group_end(); + + svg_group( array( 'fill' => $cl['text']['rgb'], 'fill-opacity' => $cl['text']['opacity'], 'stroke-width' => '0', 'font-family' => SVG_FONT, 'font-size' => '10pt', 'text-anchor' => 'middle' ) ); + for ($i=0; $i<$x_ticks; $i++) + { + $label = $data[$i]['img_label']; + svg_text($xlm + ($i * $x_step) + ($x_step / 2) - $depth - 4, $ih - $ybm + 20 + $depth, $label); + } + svg_group_end(); + } + + draw_border(); + + + // + // legend + // + svg_rect($xlm, $ih-$ybm+39, 8, 8, array( 'stroke' => $cl['text']['rgb'], 'stroke-width' => 1, 'fill' => $cl['rx']['rgb']) ); + svg_text($xlm+14, $ih-$ybm+48, T('bytes in'), array( 'fill' => $cl['text']['rgb'], 'stroke-width' => 0, 'font-family' => SVG_FONT, 'font-size' => '8pt') ); + + svg_rect($xlm+120 , $ih-$ybm+39, 8, 8, array( 'stroke' => $cl['text']['rgb'], 'stroke-width' => 1, 'fill' => $cl['tx']['rgb']) ); + svg_text($xlm+134, $ih-$ybm+48, T('bytes out'), array( 'fill' => $cl['text']['rgb'], 'stroke-width' => 0, 'font-family' => SVG_FONT, 'font-size' => '8pt') ); + } + + function output_image() + { + global $page,$hour,$day,$month,$iface; + + if ($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); + } + + svg_end(); + } + + get_vnstat_data(); + output_image(); +?> |