yt_dlp/downloader/niconico.py

   1 import threading
   2
   3 from .common import FileDownloader
   4 from ..downloader import get_suitable_downloader
   5 from ..extractor.niconico import NiconicoIE
   6 from ..utils import sanitized_Request
   7
   8
   9 class NiconicoDmcFD(FileDownloader):
  10     """ Downloading niconico douga from DMC with heartbeat """
  11
  12     def real_download(self, filename, info_dict):
  13         self.to_screen('[%s] Downloading from DMC' % self.FD_NAME)
  14
  15         ie = NiconicoIE(self.ydl)
  16         info_dict, heartbeat_info_dict = ie._get_heartbeat_info(info_dict)
  17
  18         fd = get_suitable_downloader(info_dict, params=self.params)(self.ydl, self.params)
  19
  20         success = download_complete = False
  21         timer = [None]
  22         heartbeat_lock = threading.Lock()
  23         heartbeat_url = heartbeat_info_dict['url']
  24         heartbeat_data = heartbeat_info_dict['data'].encode()
  25         heartbeat_interval = heartbeat_info_dict.get('interval', 30)
  26
  27         request = sanitized_Request(heartbeat_url, heartbeat_data)
  28
  29         def heartbeat():
  30             try:
  31                 self.ydl.urlopen(request).read()
  32             except Exception:
  33                 self.to_screen('[%s] Heartbeat failed' % self.FD_NAME)
  34
  35             with heartbeat_lock:
  36                 if not download_complete:
  37                     timer[0] = threading.Timer(heartbeat_interval, heartbeat)
  38                     timer[0].start()
  39
  40         heartbeat_info_dict['ping']()
  41         self.to_screen('[%s] Heartbeat with %d second interval ...' % (self.FD_NAME, heartbeat_interval))
  42         try:
  43             heartbeat()
  44             if type(fd).__name__ == 'HlsFD':
  45                 info_dict.update(ie._extract_m3u8_formats(info_dict['url'], info_dict['id'])[0])
  46             success = fd.real_download(filename, info_dict)
  47         finally:
  48             if heartbeat_lock:
  49                 with heartbeat_lock:
  50                     timer[0].cancel()
  51                     download_complete = True
  52         return success