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[ie/youtube] Detect experiment binding GVS PO Token to video id (#14471)

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Fixes https://github.com/yt-dlp/yt-dlp/issues/14421

Authored by: coletdjnz
This commit is contained in:
coletdjnz
2025-09-29 16:25:09 +13:00
committed by GitHub
parent 88e2a2de8e
commit bd5ed90419
4 changed files with 28 additions and 2 deletions
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20
yt_dlp/extractor/youtube/_video.py
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@@ -2955,9 +2955,20 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
# TODO(future): This validation should be moved into pot framework.
# Some sort of middleware or validation provider perhaps?
gvs_bind_to_video_id = False
experiments = traverse_obj(ytcfg, (
'WEB_PLAYER_CONTEXT_CONFIGS', ..., 'serializedExperimentFlags', {urllib.parse.parse_qs}))
if 'true' in traverse_obj(experiments, (..., 'html5_generate_content_po_token', -1)):
self.write_debug(
f'{video_id}: Detected experiment to bind GVS PO Token to video id.', only_once=True)
gvs_bind_to_video_id = True
# GVS WebPO Token is bound to visitor_data / Visitor ID when logged out.
# Must have visitor_data for it to function.
if player_url and context == _PoTokenContext.GVS and not visitor_data and not self.is_authenticated:
if (
player_url and context == _PoTokenContext.GVS
and not visitor_data and not self.is_authenticated and not gvs_bind_to_video_id
):
self.report_warning(
f'Unable to fetch GVS PO Token for {client} client: Missing required Visitor Data. '
f'You may need to pass Visitor Data with --extractor-args "youtube:visitor_data=XXX"', only_once=True)
@@ -2971,7 +2982,10 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
config_po_token = self._get_config_po_token(client, context)
if config_po_token:
# GVS WebPO token is bound to data_sync_id / account Session ID when logged in.
if player_url and context == _PoTokenContext.GVS and not data_sync_id and self.is_authenticated:
if (
player_url and context == _PoTokenContext.GVS
and not data_sync_id and self.is_authenticated and not gvs_bind_to_video_id
):
self.report_warning(
f'Got a GVS PO Token for {client} client, but missing Data Sync ID for account. Formats may not work.'
f'You may need to pass a Data Sync ID with --extractor-args "youtube:data_sync_id=XXX"')
@@ -2997,6 +3011,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
video_id=video_id,
video_webpage=webpage,
required=required,
_gvs_bind_to_video_id=gvs_bind_to_video_id,
**kwargs,
)
@@ -3040,6 +3055,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
data_sync_id=kwargs.get('data_sync_id'),
video_id=kwargs.get('video_id'),
request_cookiejar=self._downloader.cookiejar,
_gvs_bind_to_video_id=kwargs.get('_gvs_bind_to_video_id', False),
# All requests that would need to be proxied should be in the
# context of www.youtube.com or the innertube host