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[facebook] add support for Relay post pages(closes #26935)

This commit is contained in:
Remita Amine 2020-12-11 17:49:22 +01:00
parent 432c6b0f48
commit 00f5068908
1 changed files with 73 additions and 52 deletions
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117
youtube_dl/extractor/facebook.py
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@ -26,6 +26,7 @@ from ..utils import (
sanitized_Request,
try_get,
urlencode_postdata,
urljoin,
)
@ -244,7 +245,28 @@ class FacebookIE(InfoExtractor):
# data.video.story.attachments[].media
'url': 'https://www.facebook.com/watch/?v=647537299265662',
'only_matching': True,
}, {
# data.node.comet_sections.content.story.attachments[].style_type_renderer.attachment.all_subattachments.nodes[].media
'url': 'https://www.facebook.com/PankajShahLondon/posts/10157667649866271',
'info_dict': {
'id': '10157667649866271',
},
'playlist_count': 3,
}, {
# data.nodes[].comet_sections.content.story.attachments[].style_type_renderer.attachment.media
'url': 'https://m.facebook.com/Alliance.Police.Department/posts/4048563708499330',
'info_dict': {
'id': '117576630041613',
'ext': 'mp4',
# TODO: title can be extracted from video page
'title': 'Facebook video #117576630041613',
'uploader_id': '189393014416438',
'upload_date': '20201123',
'timestamp': 1606162592,
},
'skip': 'Requires logging in',
}]
_SUPPORTED_PAGLETS_REGEX = r'(?:pagelet_group_mall|permalink_video_pagelet|hyperfeed_story_id_[0-9a-f]+)'
@staticmethod
def _extract_urls(webpage):
@ -327,18 +349,20 @@ class FacebookIE(InfoExtractor):
def _real_initialize(self):
self._login()
def _extract_from_url(self, url, video_id, fatal_if_no_video=True):
def _extract_from_url(self, url, video_id):
webpage = self._download_webpage(
url.replace('://m.facebook.com/', '://www.facebook.com/'), video_id)
video_data = None
def extract_video_data(instances):
video_data = []
for item in instances:
if item[1][0] == 'VideoConfig':
video_item = item[2][0]
if video_item.get('video_id'):
return video_item['videoData']
video_data.append(video_item['videoData'])
return video_data
server_js_data = self._parse_json(self._search_regex(
r'handleServerJS\(({.+})(?:\);|,")', webpage,
@ -358,10 +382,18 @@ class FacebookIE(InfoExtractor):
formats.extend(self._parse_mpd_formats(
compat_etree_fromstring(compat_urllib_parse_unquote_plus(dash_manifest))))
def process_formats(formats):
# Downloads with browser's User-Agent are rate limited. Working around
# with non-browser User-Agent.
for f in formats:
f.setdefault('http_headers', {})['User-Agent'] = 'facebookexternalhit/1.1'
self._sort_formats(formats)
if not video_data:
server_js_data = self._parse_json(self._search_regex([
r'bigPipe\.onPageletArrive\(({.+?})\)\s*;\s*}\s*\)\s*,\s*["\']onPageletArrive\s+(?:pagelet_group_mall|permalink_video_pagelet|hyperfeed_story_id_\d+)',
r'bigPipe\.onPageletArrive\(({.*?id\s*:\s*"permalink_video_pagelet".*?})\);'
r'bigPipe\.onPageletArrive\(({.+?})\)\s*;\s*}\s*\)\s*,\s*["\']onPageletArrive\s+' + self._SUPPORTED_PAGLETS_REGEX,
r'bigPipe\.onPageletArrive\(({.*?id\s*:\s*"%s".*?})\);' % self._SUPPORTED_PAGLETS_REGEX
], webpage, 'js data', default='{}'), video_id, js_to_json, False)
video_data = extract_from_jsmods_instances(server_js_data)
@ -386,7 +418,7 @@ class FacebookIE(InfoExtractor):
'url': playable_url,
})
extract_dash_manifest(video, formats)
self._sort_formats(formats)
process_formats(formats)
v_id = video.get('videoId') or video.get('id') or video_id
info = {
'id': v_id,
@ -414,32 +446,37 @@ class FacebookIE(InfoExtractor):
data = try_get(require, lambda x: x[3][1]['__bbox']['result']['data'], dict) or {}
attachments = try_get(data, [
lambda x: x['video']['story']['attachments'],
lambda x: x['video']['creation_story']['attachments'],
lambda x: x['node']['comet_sections']['content']['story']['attachments']
], list) or []
for attachment in attachments:
attachment = try_get(attachment, lambda x: x['style_type_renderer']['attachment'], dict) or attachment
nodes = try_get(attachment, lambda x: x['all_subattachments']['nodes'], list) or []
nodes = data.get('nodes') or []
node = data.get('node') or {}
if not nodes and node:
nodes.append(node)
for node in nodes:
parse_attachment(node)
attachments = try_get(node, lambda x: x['comet_sections']['content']['story']['attachments'], list) or []
for attachment in attachments:
attachment = try_get(attachment, lambda x: x['style_type_renderer']['attachment'], dict)
ns = try_get(attachment, lambda x: x['all_subattachments']['nodes'], list) or []
for n in ns:
parse_attachment(n)
parse_attachment(attachment)
edges = try_get(data, lambda x: x['mediaset']['currMedia']['edges'], list) or []
for edge in edges:
parse_attachment(edge, key='node')
if not entries:
video = data.get('video') or {}
if video:
attachments = try_get(video, [
lambda x: x['story']['attachments'],
lambda x: x['creation_story']['attachments']
], list) or []
for attachment in attachments:
parse_attachment(attachment)
if not entries:
parse_graphql_video(video)
return webpage, self.playlist_result(entries, video_id)
return self.playlist_result(entries, video_id)
if not video_data:
if not fatal_if_no_video:
return webpage, False
m_msg = re.search(r'class="[^"]*uiInterstitialContent[^"]*"><div>(.*?)</div>', webpage)
if m_msg is not None:
raise ExtractorError(
@ -477,6 +514,17 @@ class FacebookIE(InfoExtractor):
if not video_data:
raise ExtractorError('Cannot parse data')
if len(video_data) > 1:
entries = []
for v in video_data:
video_url = v[0].get('video_url')
if not video_url:
continue
entries.append(self.url_result(urljoin(
url, video_url), self.ie_key(), v[0].get('video_id')))
return self.playlist_result(entries, video_id)
video_data = video_data[0]
formats = []
subtitles = {}
for f in video_data:
@ -504,12 +552,7 @@ class FacebookIE(InfoExtractor):
if not formats:
raise ExtractorError('Cannot find video formats')
# Downloads with browser's User-Agent are rate limited. Working around
# with non-browser User-Agent.
for f in formats:
f.setdefault('http_headers', {})['User-Agent'] = 'facebookexternalhit/1.1'
self._sort_formats(formats)
process_formats(formats)
video_title = self._html_search_regex(
r'<h2\s+[^>]*class="uiHeaderTitle"[^>]*>([^<]*)</h2>', webpage,
@ -549,35 +592,13 @@ class FacebookIE(InfoExtractor):
'subtitles': subtitles,
}
return webpage, info_dict
return info_dict
def _real_extract(self, url):
video_id = self._match_id(url)
real_url = self._VIDEO_PAGE_TEMPLATE % video_id if url.startswith('facebook:') else url
webpage, info_dict = self._extract_from_url(real_url, video_id, fatal_if_no_video=False)
if info_dict:
return info_dict
if '/posts/' in url:
video_id_json = self._search_regex(
r'(["\'])video_ids\1\s*:\s*(?P<ids>\[.+?\])', webpage, 'video ids', group='ids',
default='')
if video_id_json:
entries = [
self.url_result('facebook:%s' % vid, FacebookIE.ie_key())
for vid in self._parse_json(video_id_json, video_id)]
return self.playlist_result(entries, video_id)
# Single Video?
video_id = self._search_regex(r'video_id:\s*"([0-9]+)"', webpage, 'single video id')
return self.url_result('facebook:%s' % video_id, FacebookIE.ie_key())
else:
_, info_dict = self._extract_from_url(
self._VIDEO_PAGE_TEMPLATE % video_id,
video_id, fatal_if_no_video=True)
return info_dict
return self._extract_from_url(real_url, video_id)
class FacebookPluginsVideoIE(InfoExtractor):