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abstract facebook _extract_metadata method out from inside '_extract_from_url'
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Patrick Robertson
parent
03c3d70577
commit
2d02bdceee
1 changed files with 63 additions and 63 deletions
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@ -478,71 +478,71 @@ def _perform_login(self, username, password):
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self.report_warning(f'unable to log in: {err}')
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return
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def _extract_metadata(self, webpage, video_id):
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post_data = [self._parse_json(j, video_id, fatal=False) for j in re.findall(
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r'data-sjs>({.*?ScheduledServerJS.*?})</script>', webpage)]
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post = traverse_obj(post_data, (
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..., 'require', ..., ..., ..., '__bbox', 'require', ..., ..., ..., '__bbox', 'result', 'data'), expected_type=dict) or []
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media = traverse_obj(post, (..., 'attachments', ..., lambda k, v: (
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k == 'media' and str(v['id']) == video_id and v['__typename'] == 'Video')), expected_type=dict)
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title = get_first(media, ('title', 'text'))
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description = get_first(media, ('creation_story', 'comet_sections', 'message', 'story', 'message', 'text'))
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page_title = title or self._html_search_regex((
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r'<h2\s+[^>]*class="uiHeaderTitle"[^>]*>(?P<content>[^<]*)</h2>',
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r'(?s)<span class="fbPhotosPhotoCaption".*?id="fbPhotoPageCaption"><span class="hasCaption">(?P<content>.*?)</span>',
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self._meta_regex('og:title'), self._meta_regex('twitter:title'), r'<title>(?P<content>.+?)</title>',
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), webpage, 'title', default=None, group='content')
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description = description or self._html_search_meta(
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['description', 'og:description', 'twitter:description'],
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webpage, 'description', default=None)
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uploader_data = (
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get_first(media, ('owner', {dict}))
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or get_first(post, ('video', 'creation_story', 'attachments', ..., 'media', lambda k, v: k == 'owner' and v['name']))
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or get_first(post, (..., 'video', lambda k, v: k == 'owner' and v['name']))
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or get_first(post, ('node', 'actors', ..., {dict}))
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or get_first(post, ('event', 'event_creator', {dict}))
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or get_first(post, ('video', 'creation_story', 'short_form_video_context', 'video_owner', {dict})) or {})
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uploader = uploader_data.get('name') or (
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clean_html(get_element_by_id('fbPhotoPageAuthorName', webpage))
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or self._search_regex(
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(r'ownerName\s*:\s*"([^"]+)"', *self._og_regexes('title')), webpage, 'uploader', fatal=False))
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timestamp = int_or_none(self._search_regex(
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r'<abbr[^>]+data-utime=["\'](\d+)', webpage,
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'timestamp', default=None))
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thumbnail = self._html_search_meta(
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['og:image', 'twitter:image'], webpage, 'thumbnail', default=None)
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# some webpages contain unretrievable thumbnail urls
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# like https://lookaside.fbsbx.com/lookaside/crawler/media/?media_id=10155168902769113&get_thumbnail=1
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# in https://www.facebook.com/yaroslav.korpan/videos/1417995061575415/
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if thumbnail and not re.search(r'\.(?:jpg|png)', thumbnail):
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thumbnail = None
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info_dict = {
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'description': description,
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'uploader': uploader,
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'uploader_id': uploader_data.get('id'),
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'timestamp': timestamp,
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'thumbnail': thumbnail,
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'view_count': parse_count(self._search_regex(
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(r'\bviewCount\s*:\s*["\']([\d,.]+)', r'video_view_count["\']\s*:\s*(\d+)'),
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webpage, 'view count', default=None)),
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'concurrent_view_count': get_first(post, (
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('video', (..., ..., 'attachments', ..., 'media')), 'liveViewerCount', {int_or_none})),
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**traverse_obj(post, (lambda _, v: video_id in v['url'], 'feedback', {
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'like_count': ('likers', 'count', {int}),
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'comment_count': ('total_comment_count', {int}),
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'repost_count': ('share_count_reduced', {parse_count}),
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}), get_all=False),
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}
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info_json_ld = self._search_json_ld(webpage, video_id, default={})
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info_json_ld['title'] = (re.sub(r'\s*\|\s*Facebook$', '', title or info_json_ld.get('title') or page_title or '')
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or (description or '').replace('\n', ' ') or f'Facebook video #{video_id}')
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return merge_dicts(info_json_ld, info_dict)
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def _extract_from_url(self, url, video_id):
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webpage = self._download_webpage(
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url.replace('://m.facebook.com/', '://www.facebook.com/'), video_id)
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def extract_metadata(webpage):
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post_data = [self._parse_json(j, video_id, fatal=False) for j in re.findall(
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r'data-sjs>({.*?ScheduledServerJS.*?})</script>', webpage)]
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post = traverse_obj(post_data, (
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..., 'require', ..., ..., ..., '__bbox', 'require', ..., ..., ..., '__bbox', 'result', 'data'), expected_type=dict) or []
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media = traverse_obj(post, (..., 'attachments', ..., lambda k, v: (
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k == 'media' and str(v['id']) == video_id and v['__typename'] == 'Video')), expected_type=dict)
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title = get_first(media, ('title', 'text'))
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description = get_first(media, ('creation_story', 'comet_sections', 'message', 'story', 'message', 'text'))
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page_title = title or self._html_search_regex((
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r'<h2\s+[^>]*class="uiHeaderTitle"[^>]*>(?P<content>[^<]*)</h2>',
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r'(?s)<span class="fbPhotosPhotoCaption".*?id="fbPhotoPageCaption"><span class="hasCaption">(?P<content>.*?)</span>',
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self._meta_regex('og:title'), self._meta_regex('twitter:title'), r'<title>(?P<content>.+?)</title>',
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), webpage, 'title', default=None, group='content')
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description = description or self._html_search_meta(
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['description', 'og:description', 'twitter:description'],
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webpage, 'description', default=None)
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uploader_data = (
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get_first(media, ('owner', {dict}))
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or get_first(post, ('video', 'creation_story', 'attachments', ..., 'media', lambda k, v: k == 'owner' and v['name']))
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or get_first(post, (..., 'video', lambda k, v: k == 'owner' and v['name']))
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or get_first(post, ('node', 'actors', ..., {dict}))
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or get_first(post, ('event', 'event_creator', {dict}))
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or get_first(post, ('video', 'creation_story', 'short_form_video_context', 'video_owner', {dict})) or {})
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uploader = uploader_data.get('name') or (
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clean_html(get_element_by_id('fbPhotoPageAuthorName', webpage))
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or self._search_regex(
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(r'ownerName\s*:\s*"([^"]+)"', *self._og_regexes('title')), webpage, 'uploader', fatal=False))
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timestamp = int_or_none(self._search_regex(
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r'<abbr[^>]+data-utime=["\'](\d+)', webpage,
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'timestamp', default=None))
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thumbnail = self._html_search_meta(
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['og:image', 'twitter:image'], webpage, 'thumbnail', default=None)
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# some webpages contain unretrievable thumbnail urls
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# like https://lookaside.fbsbx.com/lookaside/crawler/media/?media_id=10155168902769113&get_thumbnail=1
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# in https://www.facebook.com/yaroslav.korpan/videos/1417995061575415/
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if thumbnail and not re.search(r'\.(?:jpg|png)', thumbnail):
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thumbnail = None
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info_dict = {
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'description': description,
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'uploader': uploader,
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'uploader_id': uploader_data.get('id'),
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'timestamp': timestamp,
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'thumbnail': thumbnail,
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'view_count': parse_count(self._search_regex(
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(r'\bviewCount\s*:\s*["\']([\d,.]+)', r'video_view_count["\']\s*:\s*(\d+)'),
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webpage, 'view count', default=None)),
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'concurrent_view_count': get_first(post, (
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('video', (..., ..., 'attachments', ..., 'media')), 'liveViewerCount', {int_or_none})),
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**traverse_obj(post, (lambda _, v: video_id in v['url'], 'feedback', {
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'like_count': ('likers', 'count', {int}),
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'comment_count': ('total_comment_count', {int}),
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'repost_count': ('share_count_reduced', {parse_count}),
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}), get_all=False),
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}
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info_json_ld = self._search_json_ld(webpage, video_id, default={})
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info_json_ld['title'] = (re.sub(r'\s*\|\s*Facebook$', '', title or info_json_ld.get('title') or page_title or '')
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or (description or '').replace('\n', ' ') or f'Facebook video #{video_id}')
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return merge_dicts(info_json_ld, info_dict)
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video_data = None
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def extract_video_data(instances):
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@ -753,7 +753,7 @@ def parse_attachment(attachment, key='media'):
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return self.playlist_result(entries, video_id)
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video_info = entries[0] if entries else {'id': video_id}
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webpage_info = extract_metadata(webpage)
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webpage_info = self._extract_metadata(webpage, video_id)
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# honor precise duration in video info
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if video_info.get('duration'):
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webpage_info['duration'] = video_info['duration']
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@ -885,7 +885,7 @@ def parse_attachment(attachment, key='media'):
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'subtitles': subtitles,
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}
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process_formats(info_dict)
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info_dict.update(extract_metadata(webpage))
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info_dict.update(self._extract_metadata(webpage, video_id))
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return info_dict
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