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[update] Detect GitHub error page responses (#17555)

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Closes #17550
Authored by: bashonly
This commit is contained in:
bashonly
2026-08-27 23:05:38 +00:00
committed by GitHub
parent 28d35b7762
commit 8377aa9555
1 changed files with 15 additions and 4 deletions
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yt_dlp/update.py
+15 -4
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@@ -227,6 +227,10 @@ def _make_label(origin, tag, version=None):
return f'{origin}@{tag}'
class _GitHubError(Exception):
pass
@dataclass
class UpdateInfo:
"""
@@ -319,7 +323,14 @@ class Updater:
path = 'latest/download' if tag == 'latest' else f'download/{tag}'
url = f'https://github.com/{self.requested_repo}/releases/{path}/{name}'
self.ydl.write_debug(f'Downloading {name} from {url}')
return self.ydl.urlopen(url).read()
response = self.ydl.urlopen(url)
# GitHub may send an error webpage response with HTTP status 200
# See https://github.com/yt-dlp/yt-dlp/issues/17550
prefix = response.read(512)
if b'<!DOCTYPE html>' in prefix:
raise _GitHubError('got error webpage instead of release asset')
return prefix + response.read()
def _call_api(self, tag):
tag = f'tags/{tag}' if tag != 'latest' else tag
@@ -358,7 +369,7 @@ class Updater:
for tag in source_tags:
try:
return self._download_asset('_update_spec', tag=tag).decode()
except network_exceptions as error:
except (_GitHubError, *network_exceptions) as error:
if isinstance(error, HTTPError) and error.status == 404:
continue
self._report_network_error(f'fetch update spec: {error}')
@@ -462,7 +473,7 @@ class Updater:
if not is_non_updateable():
try:
hashes = self._download_asset('SHA2-256SUMS', result_tag)
except network_exceptions as error:
except (_GitHubError, *network_exceptions) as error:
if not isinstance(error, HTTPError) or error.status != 404:
self._report_network_error(f'fetch checksums: {error}')
return None
@@ -525,7 +536,7 @@ class Updater:
try:
newcontent = self._download_asset(update_info.binary_name, update_info.tag)
except network_exceptions as e:
except (_GitHubError, *network_exceptions) as e:
if isinstance(e, HTTPError) and e.status == 404:
return self._report_error(
f'The requested tag {self.requested_repo}@{update_info.tag} does not exist', True)