downloader.py 文件源码

def __get_download_filename__(self):
        #Obtenemos nombre de archivo y extension
        if "filename" in self.response_headers.get("content-disposition","") and "attachment" in self.response_headers.get("content-disposition",""):
              cd_filename, cd_ext = os.path.splitext(urllib.unquote_plus(re.compile("attachment; filename ?= ?[\"|']?([^\"']+)[\"|']?").match(self.response_headers.get("content-disposition")).group(1)))
        if "filename" in self.response_headers.get("content-disposition","") and "inline" in self.response_headers.get("content-disposition",""):
              cd_filename, cd_ext = os.path.splitext(urllib.unquote_plus(re.compile("inline; filename ?= ?[\"|']?([^\"']+)[\"|']?").match(self.response_headers.get("content-disposition")).group(1)))
        else:
              cd_filename, cd_ext = "",""

        url_filename, url_ext = os.path.splitext(urllib.unquote_plus(filetools.basename(urlparse.urlparse(self.url)[2])))
        if self.response_headers.get("content-type","application/octet-stream") <> "application/octet-stream":
            mime_ext = mimetypes.guess_extension(self.response_headers.get("content-type"))
        else:
            mime_ext = ""

        #Seleccionamos el nombre mas adecuado
        if cd_filename:
            self.remote_filename = cd_filename
            if not self._filename:
                self._filename = cd_filename

        elif url_filename:
            self.remote_filename = url_filename
            if not self._filename:
                self._filename = url_filename

        #Seleccionamos la extension mas adecuada
        if cd_ext: 
            if not cd_ext in self._filename: self._filename += cd_ext
            if self.remote_filename: self.remote_filename += cd_ext
        elif mime_ext:
            if not mime_ext in self._filename: self._filename += mime_ext
            if self.remote_filename: self.remote_filename += mime_ext
        elif url_ext:
            if not url_ext in self._filename: self._filename += url_ext
            if self.remote_filename: self.remote_filename += url_ext