public function save($file, $replace = true)
{
$header['Content-Type'] = $file['type'];
$header['Content-MD5'] = $file['md5'];
$header['Mkdir'] = 'true';
$resource = fopen($file['tmp_name'], 'r');
$save = $this->rootPath . $file['savepath'] . $file['savename'];
$data = $this->request($save, 'PUT', $header, $resource);
return false === $data ? false : true;
}