diff options
Diffstat (limited to 'phpBB')
| -rw-r--r-- | phpBB/phpbb/avatar/driver/remote.php | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/phpBB/phpbb/avatar/driver/remote.php b/phpBB/phpbb/avatar/driver/remote.php index 12cbd883f4..22d50c703e 100644 --- a/phpBB/phpbb/avatar/driver/remote.php +++ b/phpBB/phpbb/avatar/driver/remote.php @@ -117,6 +117,37 @@ class remote extends \phpbb\avatar\driver\driver $types = \fileupload::image_types(); $extension = strtolower(\filespec::get_extension($url)); + // Check if this is actually an image + if ($file_stream = @fopen($url, 'r')) + { + // Timeout after 1 second + stream_set_timeout($file_stream, 1); + $meta = stream_get_meta_data($file_stream); + foreach ($meta['wrapper_data'] as $header) + { + $header = preg_split('/ /', $header, 2); + if (strtr(strtolower(trim($header[0], ':')), '_', '-') === 'content-type') + { + if (strpos($header[1], 'image/') !== 0) + { + $error[] = 'AVATAR_URL_INVALID'; + fclose($file_stream); + return false; + } + else + { + fclose($file_stream); + break; + } + } + } + } + else + { + $error[] = 'AVATAR_URL_INVALID'; + return false; + } + if (!empty($image_data) && (!isset($types[$image_data[2]]) || !in_array($extension, $types[$image_data[2]]))) { if (!isset($types[$image_data[2]])) |