NicoNico Douga is broken as of March 2022

ctrlcctrlv commented 2 years ago

Checklist

[x] I'm reporting a broken site support
[x] I've verified that I'm running youtube-dl version 2021.12.17
[x] I've checked that all provided URLs are alive and playable in a browser
[x] I've checked that all URLs and arguments with special characters are properly quoted or escaped
[x] I've searched the bugtracker for similar issues including closed ones

Verbose log

$ youtube-dl --verbose https://www.nicovideo.jp/watch/sm34706723
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['--verbose', 'https://www.nicovideo.jp/watch/sm34706723']
[debug] Encodings: locale UTF-8, fs utf-8, out utf-8, pref UTF-8
[debug] youtube-dl version 2021.12.17
[debug] Python version 3.9.7 (CPython) - Linux-5.16.11-76051611-generic-x86_64-with-glibc2.34
[debug] exe versions: ffmpeg N-106415-gfa12d808d7, ffprobe N-106415-gfa12d808d7, rtmpdump 2.4
[debug] Proxy map: {}
[niconico] sm34706723: Downloading webpage
[niconico] sm34706723: Downloading flv info
ERROR: Unable to find video URL; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type  youtube-dl -U  to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
  File "/home/fred/.local/bin/youtube-dl/youtube_dl/extractor/niconico.py", line 291, in _real_extract
    video_real_url = api_data['video']['smileInfo']['url']
KeyError: 'smileInfo'
Traceback (most recent call last):
  File "/home/fred/.local/bin/youtube-dl/youtube_dl/extractor/niconico.py", line 291, in _real_extract
    video_real_url = api_data['video']['smileInfo']['url']
KeyError: 'smileInfo'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/fred/.local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 815, in wrapper
    return func(self, *args, **kwargs)
  File "/home/fred/.local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 836, in __extract_info
    ie_result = ie.extract(url)
  File "/home/fred/.local/bin/youtube-dl/youtube_dl/extractor/common.py", line 534, in extract
    ie_result = self._real_extract(url)
  File "/home/fred/.local/bin/youtube-dl/youtube_dl/extractor/niconico.py", line 310, in _real_extract
    raise ExtractorError('Unable to find video URL')
youtube_dl.utils.ExtractorError: Unable to find video URL; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type  youtube-dl -U  to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.