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[ie/generic] Improve detection of blockage due to TLS fingerprint (#15426)

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Authored by: bashonly
This commit is contained in:
bashonly
2025-12-28 19:02:09 -06:00
committed by GitHub
parent c0a7c594a9
commit cea825e7e0
1 changed files with 9 additions and 5 deletions
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14
yt_dlp/extractor/generic.py
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@@ -821,13 +821,17 @@ class GenericIE(InfoExtractor):
'Referer': smuggled_data.get('referer'),
}), impersonate=impersonate)
except ExtractorError as e:
if not (isinstance(e.cause, HTTPError) and e.cause.status == 403
and e.cause.response.get_header('cf-mitigated') == 'challenge'
and e.cause.response.extensions.get('impersonate') is None):
if not isinstance(e.cause, HTTPError) or e.cause.status != 403:
raise
res = e.cause.response
already_impersonating = res.extensions.get('impersonate') is not None
if already_impersonating or (
res.get_header('cf-mitigated') != 'challenge'
and b'<title>Attention Required! | Cloudflare</title>' not in res.read()
):
raise
cf_cookie_domain = traverse_obj(
LenientSimpleCookie(e.cause.response.get_header('set-cookie')),
('__cf_bm', 'domain'))
LenientSimpleCookie(res.get_header('set-cookie')), ('__cf_bm', 'domain'))
if cf_cookie_domain:
self.write_debug(f'Clearing __cf_bm cookie for {cf_cookie_domain}')
self.cookiejar.clear(domain=cf_cookie_domain, path='/', name='__cf_bm')