www/plugins-dist/medias/lib/getid3/module.graphic.svg.php

   1 <?php
   2
   3 /////////////////////////////////////////////////////////////////
   4 /// getID3() by James Heinrich <info@getid3.org>               //
   5 //  available at https://github.com/JamesHeinrich/getID3       //
   6 //            or https://www.getid3.org                        //
   7 //            or http://getid3.sourceforge.net                 //
   8 //  see readme.txt for more details                            //
   9 /////////////////////////////////////////////////////////////////
  10 //                                                             //
  11 // module.graphic.svg.php                                      //
  12 // module for analyzing SVG Image files                        //
  13 // dependencies: NONE                                          //
  14 //                                                            ///
  15 /////////////////////////////////////////////////////////////////
  16
  17 if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers
  18         exit;
  19 }
  20
  21 class getid3_svg extends getid3_handler
  22 {
  23         /**
  24          * @return bool
  25          */
  26         public function Analyze() {
  27                 $info = &$this->getid3->info;
  28
  29                 $this->fseek($info['avdataoffset']);
  30
  31                 $SVGheader = $this->fread(4096);
  32                 if (preg_match('#\<\?xml([^\>]+)\?\>#i', $SVGheader, $matches)) {
  33                         $info['svg']['xml']['raw'] = $matches;
  34                 }
  35                 if (preg_match('#\<\!DOCTYPE([^\>]+)\>#i', $SVGheader, $matches)) {
  36                         $info['svg']['doctype']['raw'] = $matches;
  37                 }
  38                 if (preg_match('#\<svg([^\>]+)\>#i', $SVGheader, $matches)) {
  39                         $info['svg']['svg']['raw'] = $matches;
  40                 }
  41                 if (isset($info['svg']['svg']['raw'])) {
  42
  43                         $sections_to_fix = array('xml', 'doctype', 'svg');
  44                         foreach ($sections_to_fix as $section_to_fix) {
  45                                 if (!isset($info['svg'][$section_to_fix])) {
  46                                         continue;
  47                                 }
  48                                 $section_data = array();
  49                                 while (preg_match('/ "([^"]+)"/', $info['svg'][$section_to_fix]['raw'][1], $matches)) {
  50                                         $section_data[] = $matches[1];
  51                                         $info['svg'][$section_to_fix]['raw'][1] = str_replace($matches[0], '', $info['svg'][$section_to_fix]['raw'][1]);
  52                                 }
  53                                 while (preg_match('/([^\s]+)="([^"]+)"/', $info['svg'][$section_to_fix]['raw'][1], $matches)) {
  54                                         $section_data[] = $matches[0];
  55                                         $info['svg'][$section_to_fix]['raw'][1] = str_replace($matches[0], '', $info['svg'][$section_to_fix]['raw'][1]);
  56                                 }
  57                                 $section_data = array_merge($section_data, preg_split('/[\s,]+/', $info['svg'][$section_to_fix]['raw'][1]));
  58                                 foreach ($section_data as $keyvaluepair) {
  59                                         $keyvaluepair = trim($keyvaluepair);
  60                                         if ($keyvaluepair) {
  61                                                 $keyvalueexploded = explode('=', $keyvaluepair);
  62                                                 $key   = (isset($keyvalueexploded[0]) ? $keyvalueexploded[0] : '');
  63                                                 $value = (isset($keyvalueexploded[1]) ? $keyvalueexploded[1] : '');
  64                                                 $info['svg'][$section_to_fix]['sections'][$key] = trim($value, '"');
  65                                         }
  66                                 }
  67                         }
  68
  69                         $info['fileformat']                  = 'svg';
  70                         $info['video']['dataformat']         = 'svg';
  71                         $info['video']['lossless']           = true;
  72                         //$info['video']['bits_per_sample']    = 24;
  73                         $info['video']['pixel_aspect_ratio'] = (float) 1;
  74
  75                         if (!empty($info['svg']['svg']['sections']['width'])) {
  76                                 $info['svg']['width']  = intval($info['svg']['svg']['sections']['width']);
  77                         }
  78                         if (!empty($info['svg']['svg']['sections']['height'])) {
  79                                 $info['svg']['height'] = intval($info['svg']['svg']['sections']['height']);
  80                         }
  81                         if (!empty($info['svg']['svg']['sections']['version'])) {
  82                                 $info['svg']['version'] = $info['svg']['svg']['sections']['version'];
  83                         }
  84                         if (!isset($info['svg']['version']) && isset($info['svg']['doctype']['sections'])) {
  85                                 foreach ($info['svg']['doctype']['sections'] as $key => $value) {
  86                                         if (preg_match('#//W3C//DTD SVG ([0-9\.]+)//#i', $key, $matches)) {
  87                                                 $info['svg']['version'] = $matches[1];
  88                                                 break;
  89                                         }
  90                                 }
  91                         }
  92
  93                         if (!empty($info['svg']['width'])) {
  94                                 $info['video']['resolution_x'] = $info['svg']['width'];
  95                         }
  96                         if (!empty($info['svg']['height'])) {
  97                                 $info['video']['resolution_y'] = $info['svg']['height'];
  98                         }
  99
 100                         return true;
 101                 }
 102                 $this->error('Did not find expected <svg> tag');
 103                 return false;
 104         }
 105
 106 }