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fix: detect channels addressed without a tab (closes #1024)

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__is_channel_extraction keyed on id == channel_id. That holds for a channel
tab - /channel/UC..., and the videos, streams, shorts and playlists tabs of a
/@handle URL - but not for a channel addressed on its own: yt-dlp reports the
id in the form the channel was asked for, so a bare handle URL yields '@handle'
and a legacy /c/ URL yields the vanity name.

Neither matched, so both fell through to OUTPUT_TEMPLATE_PLAYLIST and the
folder came out as the feed's title. That is why e2c7778 fixed the reporter's
tab URLs while a bare channel URL - what you get copying the address bar - went
on ignoring OUTPUT_TEMPLATE.

Both forms match uploader_id, which is the handle either way, so compare
against that as well, without case: a legacy vanity name and the handle it
became need not agree on it. A real playlist carries its owner's channel_id and
uploader_id but keeps an id of its own, so it still reads as a playlist; no
playlist id can collide with a handle, since those are 'PL...', 'OLAK...' and
the like.

Verified against the live extractor for all six channel URL forms and a real
playlist.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
Alex Shnitman
2026-08-17 09:31:56 +02:00
parent aac9c63a36
commit e15aff3339
2 changed files with 100 additions and 4 deletions
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app/ytdl.py
+24 -4
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@@ -1063,13 +1063,33 @@ class DownloadQueue:
@staticmethod
def __is_channel_extraction(entry):
"""Return True when yt-dlp reported a channel tab as a playlist.
"""Return True when yt-dlp reported a channel as a playlist.
YouTube channel tabs are extracted with ``_type: 'playlist'`` but set
``id`` equal to ``channel_id``; real playlists keep a distinct id.
A channel *tab* -- ``/channel/UC...``, ``/@handle/videos``, and the
streams, shorts and playlists tabs -- is extracted with ``id`` equal to
``channel_id``. A channel addressed without a tab keeps the form it was
asked for instead: ``@handle`` for a handle URL and the vanity name for
a legacy ``/c/`` URL. Both of those match ``uploader_id``, which is the
handle either way, so compare against it as well.
A real playlist has an id of its own and matches neither, even though
it also carries its owner's ``channel_id``.
"""
channel_id = entry.get('channel_id')
return bool(channel_id) and entry.get('id') == channel_id
entry_id = entry.get('id')
if not channel_id or not entry_id:
return False
if entry_id == channel_id:
return True
uploader_id = entry.get('uploader_id')
if not uploader_id:
return False
# Compared without case because a legacy vanity name and the handle it
# became need not agree on it. No playlist id can collide here: those
# are 'PL...', 'OLAK...' and the like, never a handle.
handle = uploader_id.casefold()
entry_id = entry_id.casefold()
return handle in (entry_id, f'@{entry_id}')
async def __import_queue(self):
for k, v in self.queue.saved_items():