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https://github.com/yt-dlp/yt-dlp.git
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[extractor] Add default
parameter to _search_json
(#4057)
Authored by: pukkandan, coletdjnz
This commit is contained in:
parent
9fde8a6b12
commit
f0bc6e2019
@ -486,9 +486,9 @@ def _extract_metadata(self, video_id, webpage):
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search_meta = ((lambda x: self._html_search_meta(x, webpage, default=None)) if webpage else (lambda x: None))
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player_response = self._search_json(
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self._YT_INITIAL_PLAYER_RESPONSE_RE, webpage, 'initial player response',
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video_id, fatal=False)
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video_id, default={})
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initial_data = self._search_json(
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self._YT_INITIAL_DATA_RE, webpage, 'initial data', video_id, fatal=False)
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self._YT_INITIAL_DATA_RE, webpage, 'initial data', video_id, default={})
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initial_data_video = traverse_obj(
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initial_data, ('contents', 'twoColumnWatchNextResults', 'results', 'results', 'contents', ..., 'videoPrimaryInfoRenderer'),
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@ -1188,13 +1188,32 @@ def _search_regex(self, pattern, string, name, default=NO_DEFAULT, fatal=True, f
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self.report_warning('unable to extract %s' % _name + bug_reports_message())
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return None
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def _search_json(self, start_pattern, string, name, video_id, *, end_pattern='', contains_pattern='(?s:.+)', fatal=True, **kwargs):
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def _search_json(self, start_pattern, string, name, video_id, *, end_pattern='',
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contains_pattern='(?s:.+)', fatal=True, default=NO_DEFAULT, **kwargs):
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"""Searches string for the JSON object specified by start_pattern"""
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# NB: end_pattern is only used to reduce the size of the initial match
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return self._parse_json(
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self._search_regex(rf'{start_pattern}\s*(?P<json>{{{contains_pattern}}})\s*{end_pattern}',
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string, name, group='json', fatal=fatal) or '{}',
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video_id, fatal=fatal, ignore_extra=True, **kwargs) or {}
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if default is NO_DEFAULT:
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default, has_default = {}, False
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else:
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fatal, has_default = False, True
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json_string = self._search_regex(
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rf'{start_pattern}\s*(?P<json>{{\s*{contains_pattern}\s*}})\s*{end_pattern}',
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string, name, group='json', fatal=fatal, default=None if has_default else NO_DEFAULT)
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if not json_string:
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return default
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_name = self._downloader._format_err(name, self._downloader.Styles.EMPHASIS)
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try:
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return self._parse_json(json_string, video_id, ignore_extra=True, **kwargs)
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except ExtractorError as e:
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if fatal:
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raise ExtractorError(
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f'Unable to extract {_name} - Failed to parse JSON', cause=e.cause, video_id=video_id)
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elif not has_default:
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self.report_warning(
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f'Unable to extract {_name} - Failed to parse JSON: {e}', video_id=video_id)
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return default
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def _html_search_regex(self, pattern, string, name, default=NO_DEFAULT, fatal=True, flags=0, group=None):
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"""
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