<?php
/**
- * poche, a read it later open source system
+ * wallabag, self hostable application allowing you to not miss any content anymore
*
- * @category poche
- * @author Nicolas Lœuillet <support@inthepoche.com>
+ * @category wallabag
+ * @author Nicolas Lœuillet <nicolas@loeuillet.org>
* @copyright 2013
* @license http://www.wtfpl.net/ see COPYING file
*/
function filtre_picture($content, $url, $id)
{
$matches = array();
+ $processing_pictures = array(); // list of processing image to avoid processing the same pictures twice
preg_match_all('#<\s*(img)[^>]+src="([^"]*)"[^>]*>#Si', $content, $matches, PREG_SET_ORDER);
foreach($matches as $i => $link) {
$link[1] = trim($link[1]);
$filename = basename(parse_url($absolute_path, PHP_URL_PATH));
$directory = create_assets_directory($id);
$fullpath = $directory . '/' . $filename;
- download_pictures($absolute_path, $fullpath);
- $content = str_replace($matches[$i][2], $fullpath, $content);
+
+ if (in_array($absolute_path, $processing_pictures) === true) {
+ // replace picture's URL only if processing is OK : already processing -> go to next picture
+ continue;
+ }
+
+ if (download_pictures($absolute_path, $fullpath) === true) {
+ $content = str_replace($matches[$i][2], $fullpath, $content);
+ }
+
+ $processing_pictures[] = $absolute_path;
}
}
/**
* Téléchargement des images
+ *
+ * @return bool true if the download and processing is OK, false else
*/
function download_pictures($absolute_path, $fullpath)
{
$rawdata = Tools::getFile($absolute_path);
+ $fullpath = urldecode($fullpath);
if(file_exists($fullpath)) {
unlink($fullpath);
}
- $fp = fopen($fullpath, 'x');
- fwrite($fp, $rawdata);
- fclose($fp);
+
+ // check extension
+ $file_ext = strrchr($fullpath, '.');
+ $whitelist = array(".jpg",".jpeg",".gif",".png");
+ if (!(in_array($file_ext, $whitelist))) {
+ Tools::logm('processed image with not allowed extension. Skipping ' . $fullpath);
+ return false;
+ }
+
+ // check headers
+ $imageinfo = getimagesize($absolute_path);
+ if ($imageinfo['mime'] != 'image/gif' && $imageinfo['mime'] != 'image/jpeg'&& $imageinfo['mime'] != 'image/jpg'&& $imageinfo['mime'] != 'image/png') {
+ Tools::logm('processed image with bad header. Skipping ' . $fullpath);
+ return false;
+ }
+
+ // regenerate image
+ $im = imagecreatefromstring($rawdata);
+ if ($im === false) {
+ Tools::logm('error while regenerating image ' . $fullpath);
+ return false;
+ }
+
+ switch ($imageinfo['mime']) {
+ case 'image/gif':
+ $result = imagegif($im, $fullpath);
+ break;
+ case 'image/jpeg':
+ case 'image/jpg':
+ $result = imagejpeg($im, $fullpath, REGENERATE_PICTURES_QUALITY);
+ break;
+ case 'image/png':
+ $result = imagepng($im, $fullpath, ceil(REGENERATE_PICTURES_QUALITY / 100 * 9));
+ break;
+ }
+ imagedestroy($im);
+
+ return $result;
}
/**