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<?php
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//
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// vnStat PHP frontend (c)2006-2010 Bjorge Dijkstra (bjd@jooz.net)
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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//
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// see file COPYING or at http://www.gnu.org/licenses/gpl.html
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// for more information.
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//
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require 'config.php';
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require 'localize.php';
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require 'vnstat.php';
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validate_input();
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require "./themes/$style/theme.php";
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function svg_create($width, $height)
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{
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header('Content-type: image/svg+xml');
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print "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n";
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print "<svg width=\"$width\" height=\"$height\" version=\"1.2\" baseProfile=\"tiny\" xmlns=\"http://www.w3.org/2000/svg\">\n";
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print "<g style=\"shape-rendering: crispEdges\">\n";
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}
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function svg_end()
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{
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print "</g>\n";
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print "</svg>\n";
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}
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function svg_options($options)
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{
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foreach ($options as $key => $value) {
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print "$key=\"$value\" ";
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}
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}
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function svg_group($options)
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{
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print "<g ";
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svg_options($options);
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print ">\n";
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}
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function svg_group_end()
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{
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print "</g>\n";
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}
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function svg_text($x, $y, $text, $options = array())
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{
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printf("<text x=\"%F\" y=\"%F\" ", $x, $y);
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svg_options($options);
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print ">$text</text>\n";
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}
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function svg_line($x1, $y1, $x2, $y2, $options = array())
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{
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printf("<line x1=\"%F\" y1=\"%F\" x2=\"%F\" y2=\"%F\" ", $x1, $y1, $x2, $y2);
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svg_options($options);
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print "/>\n";
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}
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function svg_rect($x, $y, $w, $h, $options = array())
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{
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printf("<rect x=\"%F\" y=\"%F\" width=\"%F\" height=\"%F\" ", $x, $y, $w, $h);
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svg_options($options);
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print "/>\n";
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}
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function svg_poly($points, $options = array())
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{
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print "<polygon points=\"";
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for ($p = 0; $p < count($points); $p += 2) {
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printf("%F,%F ", $points[$p], $points[$p+1]);
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}
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svg_options($options);
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print "\"/>\n";
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}
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function allocate_color($colors)
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{
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$col['rgb'] = sprintf("#%02X%02X%02X", $colors[0], $colors[1], $colors[2]);
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$col['opacity'] = sprintf("%F", (127 - $colors[3]) / 127);
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return $col;
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}
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function init_image()
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{
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global $xlm, $xrm, $ytm, $ybm, $iw, $ih,$graph, $cl, $iface, $colorscheme, $style;
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if ($graph == 'none')
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return;
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//
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// image object
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//
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$xlm = 70;
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$xrm = 20;
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$ytm = 35;
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$ybm = 60;
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if ($graph == 'small')
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{
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$iw = 300 + $xrm + $xlm;
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$ih = 100 + $ytm + $ybm;
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}
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else
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{
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$iw = 600 + $xrm + $xlm;
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$ih = 200 + $ytm + $ybm;
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}
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svg_create($iw, $ih);
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//
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// colors
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//
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$cs = $colorscheme;
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$cl['image_background'] = allocate_color($cs['image_background']);
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$cl['background'] = allocate_color($cs['graph_background']);
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$cl['background_2'] = allocate_color($cs['graph_background_2']);
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$cl['grid_stipple_1'] = allocate_color($cs['grid_stipple_1']);
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$cl['grid_stipple_2'] = allocate_color($cs['grid_stipple_2']);
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$cl['text'] = allocate_color($cs['text']);
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$cl['border'] = allocate_color($cs['border']);
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$cl['rx'] = allocate_color($cs['rx']);
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$cl['rx_border'] = allocate_color($cs['rx_border']);
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$cl['tx'] = allocate_color($cs['tx']);
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$cl['tx_border'] = allocate_color($cs['tx_border']);
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svg_rect(0, 0, $iw, $ih, array( 'stroke' => 'none', 'stroke-width' => 0, 'fill' => $cl['image_background']['rgb']) );
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svg_rect($xlm, $ytm, $iw-$xrm-$xlm, $ih-$ybm-$ytm, array( 'stroke' => 'none', 'stroke-width' => 0, 'fill' => $cl['background']['rgb']) );
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$depth = 12;
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svg_group( array( 'stroke' => 'none', 'stroke-width' => 0, 'fill' => $cl['background_2']['rgb'], 'fill-opacity' => $cl['background_2']['opacity']) );
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svg_poly(array($xlm, $ytm, $xlm, $ih - $ybm, $xlm - $depth, $ih - $ybm + $depth, $xlm - $depth, $ytm + $depth));
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svg_poly(array($xlm, $ih - $ybm, $xlm - $depth, $ih - $ybm + $depth, $iw - $xrm - $depth, $ih - $ybm + $depth, $iw - $xrm, $ih - $ybm));
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svg_group_end();
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// draw title
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$text = T('Traffic data for')." $iface";
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svg_text($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' ));
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}
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function draw_border()
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{
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global $cl, $iw, $ih;
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svg_rect(1, 1, $iw-2, $ih-2, array( 'stroke' => $cl['border']['rgb'], 'stroke-opacity' => $cl['border']['opacity'], 'stroke-width' => 1, 'fill' => 'none') );
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}
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function draw_grid($x_ticks, $y_ticks)
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{
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global $cl, $iw, $ih, $xlm, $xrm, $ytm, $ybm;
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$x_step = ($iw - $xlm - $xrm) / $x_ticks;
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$y_step = ($ih - $ytm - $ybm) / $y_ticks;
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$depth = 12;
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svg_group( array( 'stroke' => $cl['grid_stipple_1']['rgb'], 'stroke-opacity' => $cl['grid_stipple_1']['opacity'], 'stroke-width' => '1px', 'stroke-dasharray' => '1,1' ) );
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for ($i = $xlm; $i <= ($iw - $xrm); $i += $x_step)
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{
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svg_line($i, $ytm, $i, $ih-$ybm);
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svg_line($i, $ih-$ybm, $i-$depth, $ih-$ybm+$depth);
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}
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for ($i = $ytm; $i <= ($ih - $ybm); $i += $y_step)
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{
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svg_line($xlm, $i, $iw - $xrm, $i);
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svg_line($xlm, $i, $xlm - $depth, $i + $depth);
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}
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svg_group_end();
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svg_group( array( 'stroke' => $cl['border']['rgb'], 'stroke-width' => '1px', 'stroke-opacity' => $cl['border']['opacity'] ) );
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svg_line($xlm, $ytm, $xlm, $ih - $ybm);
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svg_line($xlm, $ih - $ybm, $iw - $xrm, $ih - $ybm);
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svg_group_end();
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}
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function draw_data($data)
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{
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global $cl,$iw,$ih,$xlm,$xrm,$ytm,$ybm;
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sort($data);
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$x_ticks = count($data);
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$y_ticks = 10;
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$y_scale = 1;
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$prescale = 1;
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$unit = 'K';
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$offset = 0;
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$gr_h = $ih - $ytm - $ybm;
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$x_step = ($iw - $xlm - $xrm) / $x_ticks;
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$y_step = ($ih - $ytm - $ybm) / $y_ticks;
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$bar_w = ($x_step / 2) ;
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//
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// determine scale
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//
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$low = 99999999999;
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$high = 0;
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for ($i=0; $i<$x_ticks; $i++)
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{
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if ($data[$i]['rx'] < $low)
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$low = $data[$i]['rx'];
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if ($data[$i]['tx'] < $low)
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$low = $data[$i]['tx'];
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if ($data[$i]['rx'] > $high)
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$high = $data[$i]['rx'];
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if ($data[$i]['tx'] > $high)
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$high = $data[$i]['tx'];
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}
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while ($high > ($prescale * $y_scale * $y_ticks))
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{
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$y_scale = $y_scale * 2;
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if ($y_scale >= 1024)
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{
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$prescale = $prescale * 1024;
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$y_scale = $y_scale / 1024;
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if ($unit == 'K')
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$unit = 'M';
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else if ($unit == 'M')
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$unit = 'G';
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else if ($unit == 'G')
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$unit = 'T';
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}
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}
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draw_grid($x_ticks, $y_ticks);
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//
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// graph scale factor (per pixel)
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//
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$sf = ($prescale * $y_scale * $y_ticks) / $gr_h;
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if ($data[0] == 'nodata')
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{
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$text = 'no data available';
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svg_text($iw/2, $ytm + 80, $text, array( 'stroke' => $cl['text']['rgb'], 'fill' => $cl['text']['rgb'], 'stroke-width' => 0, 'font-family' => SVG_FONT, 'font-size' => '16pt', 'text-anchor' => 'middle') );
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}
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else
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{
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//
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// draw bars
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//
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for ($i=0; $i<$x_ticks; $i++)
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{
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$x = $xlm + ($i * $x_step);
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$y = $ytm + ($ih - $ytm - $ybm) - (($data[$i]['rx'] - $offset) / $sf);
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$depth = ($x_ticks < 20) ? 8 : 6;
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$space = 0;
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$x1 = (int)$x;
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$y1 = (int)$y;
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$w = (int)($bar_w - $space);
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$h = (int)($ih - $ybm - $y);
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$x2 = (int)($x + $bar_w - $space);
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$y2 = (int)($ih - $ybm);
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svg_group( array( 'stroke' => $cl['rx_border']['rgb'], 'stroke-opacity' => $cl['rx_border']['opacity'],
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'stroke-width' => 1, 'stroke-linejoin' => 'round',
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'fill' => $cl['rx']['rgb'], 'fill-opacity' => $cl['rx']['opacity'] ) );
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svg_rect($x1, $y1, $w, $h);
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svg_rect($x1 - $depth, $y1 + $depth, $w, $h);
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svg_poly(array($x1, $y1, $x2, $y1, $x2 - $depth, $y1 + $depth, $x1 - $depth, $y1 + $depth));
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svg_poly(array($x2, $y1, $x2, $y2, $x2 - $depth, $y2 + $depth, $x2 - $depth, $y1 + $depth));
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svg_group_end();
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$y1 = (int)($ytm + ($ih - $ytm - $ybm) - (($data[$i]['tx'] - $offset) / $sf));
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$x1 = (int)($x1 + $bar_w);
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$x2 = (int)($x2 + $bar_w);
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$w = (int)($bar_w - $space);
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$h = (int)($ih - $ybm - $y1 - 1);
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svg_group( array( 'stroke' => $cl['tx_border']['rgb'], 'stroke-opacity' => $cl['tx_border']['opacity'],
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'stroke-width' => 1, 'stroke-linejoin' => 'round',
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'fill' => $cl['tx']['rgb'], 'fill-opacity' => $cl['tx']['opacity'] ) );
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svg_rect($x1, $y1, $w, $h);
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svg_rect($x1 - $depth, $y1 + $depth, $w, $h);
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svg_poly(array($x1, $y1, $x2, $y1, $x2 - $depth, $y1 + $depth, $x1 - $depth, $y1 + $depth));
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svg_poly(array($x2, $y1, $x2, $y2, $x2 - $depth, $y2 + $depth, $x2 - $depth, $y1 + $depth));
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svg_group_end();
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}
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//
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// axis labels
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//
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svg_group( array( 'fill' => $cl['text']['rgb'], 'fill-opacity' => $cl['text']['opacity'], 'stroke-width' => '0', 'font-family' => SVG_FONT, 'font-size' => '10pt', 'text-anchor' => 'end' ) );
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for ($i=0; $i<=$y_ticks; $i++)
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{
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$label = ($i * $y_scale).$unit;
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$tx = $xlm - 16;
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$ty = (int)(($ih - $ybm) - ($i * $y_step) + 8 + $depth);
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svg_text($tx, $ty, $label);
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}
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svg_group_end();
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svg_group( array( 'fill' => $cl['text']['rgb'], 'fill-opacity' => $cl['text']['opacity'], 'stroke-width' => '0', 'font-family' => SVG_FONT, 'font-size' => '10pt', 'text-anchor' => 'middle' ) );
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for ($i=0; $i<$x_ticks; $i++)
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{
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|
316 |
$label = $data[$i]['img_label'];
|
|
|
317 |
svg_text($xlm + ($i * $x_step) + ($x_step / 2) - $depth - 4, $ih - $ybm + 20 + $depth, $label);
|
|
|
318 |
}
|
|
|
319 |
svg_group_end();
|
|
|
320 |
}
|
|
|
321 |
|
|
|
322 |
draw_border();
|
|
|
323 |
|
|
|
324 |
|
|
|
325 |
//
|
|
|
326 |
// legend
|
|
|
327 |
//
|
|
|
328 |
svg_rect($xlm, $ih-$ybm+39, 8, 8, array( 'stroke' => $cl['text']['rgb'], 'stroke-width' => 1, 'fill' => $cl['rx']['rgb']) );
|
|
|
329 |
svg_text($xlm+14, $ih-$ybm+48, T('bytes in'), array( 'fill' => $cl['text']['rgb'], 'stroke-width' => 0, 'font-family' => SVG_FONT, 'font-size' => '8pt') );
|
|
|
330 |
|
|
|
331 |
svg_rect($xlm+120 , $ih-$ybm+39, 8, 8, array( 'stroke' => $cl['text']['rgb'], 'stroke-width' => 1, 'fill' => $cl['tx']['rgb']) );
|
|
|
332 |
svg_text($xlm+134, $ih-$ybm+48, T('bytes out'), array( 'fill' => $cl['text']['rgb'], 'stroke-width' => 0, 'font-family' => SVG_FONT, 'font-size' => '8pt') );
|
|
|
333 |
}
|
|
|
334 |
|
|
|
335 |
function output_image()
|
|
|
336 |
{
|
|
|
337 |
global $page,$hour,$day,$month,$iface;
|
|
|
338 |
|
|
|
339 |
if ($page == 'summary')
|
|
|
340 |
return;
|
|
|
341 |
|
|
|
342 |
init_image();
|
|
|
343 |
|
|
|
344 |
if ($page == 'h')
|
|
|
345 |
{
|
|
|
346 |
draw_data($hour);
|
|
|
347 |
}
|
|
|
348 |
else if ($page == 'd')
|
|
|
349 |
{
|
|
|
350 |
draw_data($day);
|
|
|
351 |
}
|
|
|
352 |
else if ($page == 'm')
|
|
|
353 |
{
|
|
|
354 |
draw_data($month);
|
|
|
355 |
}
|
|
|
356 |
|
|
|
357 |
svg_end();
|
|
|
358 |
}
|
|
|
359 |
|
|
|
360 |
get_vnstat_data();
|
|
|
361 |
output_image();
|
|
|
362 |
?>
|