inc/poche/pochePictures.php

   1 <?php
   2 /**
   3  * poche, a read it later open source system
   4  *
   5  * @category   poche
   6  * @author     Nicolas Lœuillet <support@inthepoche.com>
   7  * @copyright  2013
   8  * @license    http://www.wtfpl.net/ see COPYING file
   9  */
  10
  11 /**
  12  * On modifie les URLS des images dans le corps de l'article
  13  */
  14 function filtre_picture($content, $url, $id)
  15 {
  16     $matches = array();
  17     preg_match_all('#<\s*(img)[^>]+src="([^"]*)"[^>]*>#Si', $content, $matches, PREG_SET_ORDER);
  18     foreach($matches as $i => $link) {
  19         $link[1] = trim($link[1]);
  20         if (!preg_match('#^(([a-z]+://)|(\#))#', $link[1])) {
  21             $absolute_path = get_absolute_link($link[2],$url);
  22             $filename = basename(parse_url($absolute_path, PHP_URL_PATH));
  23             $directory = create_assets_directory($id);
  24             $fullpath = $directory . '/' . $filename;
  25             download_pictures($absolute_path, $fullpath);
  26             $content = str_replace($matches[$i][2], $fullpath, $content);
  27         }
  28
  29     }
  30
  31     return $content;
  32 }
  33
  34 /**
  35  * Retourne le lien absolu
  36  */
  37 function get_absolute_link($relative_link, $url) {
  38     /* return if already absolute URL */
  39     if (parse_url($relative_link, PHP_URL_SCHEME) != '') return $relative_link;
  40
  41     /* queries and anchors */
  42     if ($relative_link[0]=='#' || $relative_link[0]=='?') return $url . $relative_link;
  43
  44     /* parse base URL and convert to local variables:
  45        $scheme, $host, $path */
  46     extract(parse_url($url));
  47
  48     /* remove non-directory element from path */
  49     $path = preg_replace('#/[^/]*$#', '', $path);
  50
  51     /* destroy path if relative url points to root */
  52     if ($relative_link[0] == '/') $path = '';
  53
  54     /* dirty absolute URL */
  55     $abs = $host . $path . '/' . $relative_link;
  56
  57     /* replace '//' or '/./' or '/foo/../' with '/' */
  58     $re = array('#(/\.?/)#', '#/(?!\.\.)[^/]+/\.\./#');
  59     for($n=1; $n>0; $abs=preg_replace($re, '/', $abs, -1, $n)) {}
  60
  61     /* absolute URL is ready! */
  62     return $scheme.'://'.$abs;
  63 }
  64
  65 /**
  66  * Téléchargement des images
  67  */
  68 function download_pictures($absolute_path, $fullpath)
  69 {
  70     $rawdata = Tools::getFile($absolute_path);
  71
  72     if(file_exists($fullpath)) {
  73         unlink($fullpath);
  74     }
  75     $fp = fopen($fullpath, 'x');
  76     fwrite($fp, $rawdata);
  77     fclose($fp);
  78 }
  79
  80 /**
  81  * Crée un répertoire de médias pour l'article
  82  */
  83 function create_assets_directory($id)
  84 {
  85     $assets_path = ABS_PATH;
  86     if(!is_dir($assets_path)) {
  87         mkdir($assets_path, 0705);
  88     }
  89
  90     $article_directory = $assets_path . $id;
  91     if(!is_dir($article_directory)) {
  92         mkdir($article_directory, 0705);
  93     }
  94
  95     return $article_directory;
  96 }
  97
  98 /**
  99  * Suppression du répertoire d'images
 100  */
 101 function remove_directory($directory)
 102 {
 103     if(is_dir($directory)) {
 104         $files = array_diff(scandir($directory), array('.','..'));
 105         foreach ($files as $file) {
 106             (is_dir("$directory/$file")) ? remove_directory("$directory/$file") : unlink("$directory/$file");
 107         }
 108         return rmdir($directory);
 109     }
 110 }