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youtube-dl/youtube_dl/downloader/niconico.py

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# coding: utf-8
from __future__ import unicode_literals
try:
import threading
except ImportError:
threading = None
from .common import FileDownloader
from ..downloader import get_suitable_downloader
from ..extractor.niconico import NiconicoIE
from ..utils import sanitized_Request
class NiconicoDmcFD(FileDownloader):
""" Downloading niconico douga from DMC with heartbeat """
FD_NAME = 'niconico_dmc'
def real_download(self, filename, info_dict):
self.to_screen('[%s] Downloading from DMC' % self.FD_NAME)
ie = NiconicoIE(self.ydl)
info_dict, heartbeat_info_dict = ie._get_heartbeat_info(info_dict)
fd = get_suitable_downloader(info_dict, params=self.params)(self.ydl, self.params)
for ph in self._progress_hooks:
fd.add_progress_hook(ph)
if not threading:
self.to_screen('[%s] Threading for Heartbeat not available' % self.FD_NAME)
return fd.real_download(filename, info_dict)
success = download_complete = False
timer = [None]
heartbeat_lock = threading.Lock()
heartbeat_url = heartbeat_info_dict['url']
heartbeat_data = heartbeat_info_dict['data'].encode()
heartbeat_interval = heartbeat_info_dict.get('interval', 30)
request = sanitized_Request(heartbeat_url, heartbeat_data)
def heartbeat():
try:
self.ydl.urlopen(request).read()
except Exception:
self.to_screen('[%s] Heartbeat failed' % self.FD_NAME)
with heartbeat_lock:
if not download_complete:
timer[0] = threading.Timer(heartbeat_interval, heartbeat)
timer[0].start()
heartbeat_info_dict['ping']()
self.to_screen('[%s] Heartbeat with %d second interval ...' % (self.FD_NAME, heartbeat_interval))
try:
heartbeat()
if type(fd).__name__ == 'HlsFD':
info_dict.update(ie._extract_m3u8_formats(info_dict['url'], info_dict['id'])[0])
success = fd.real_download(filename, info_dict)
finally:
if heartbeat_lock:
with heartbeat_lock:
timer[0].cancel()
download_complete = True
return success