public bool AlreadyExists(string url, string path) { if (!_diskProvider.FileExists(path)) { return(false); } var headers = _httpProvider.GetHeader(url); string sizeString; if (headers.TryGetValue(HttpProvider.CONTENT_LENGTH_HEADER, out sizeString)) { int size; int.TryParse(sizeString, out size); var fileSize = _diskProvider.GetFileSize(path); return(fileSize == size); } _logger.Warn("Couldn't find content-length header {0}", headers.ToJson()); return(false); }