score_id = $score_id; } public function show($dir, $ext, $content_type) { $dirname = sprintf("%s/%d", $dir, floor($this->score_id / 1000) * 1000); $filename = sprintf("%s/%d.%s.gz", $dirname, $this->score_id, $ext); if (!file_exists($filename)) { http_response_code(404); return; } $content_encoding = self::get_content_encoding(); header("Content-Type: ".$content_type); if ($content_encoding !== FALSE) { header("Content-Encoding: ".$content_encoding); readfile($filename); } else { readgzfile($filename); } } private static function browser_accept_encodings() { if (!isset($_SERVER["HTTP_ACCEPT_ENCODING"])) return []; return array_map('trim', explode(",", $_SERVER["HTTP_ACCEPT_ENCODING"])); } private static function get_content_encoding() { $supported_gzip_encodings = array_intersect( self::browser_accept_encodings(), ['gzip', 'x-gzip']); return count($supported_gzip_encodings) > 0 ? $supported_gzip_encodings[0] : FALSE; } }