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[cleanup,instagram] Refactor extractors

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Closes #1561
pull/1800/head
pukkandan 3 years ago
parent 17b4540662
commit eb56d132d2
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1 changed files with 114 additions and 171 deletions
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285
yt_dlp/extractor/instagram.py
Unescape Escape View File

@ -1,5 +1,4 @@
# coding: utf-8
from __future__ import unicode_literals
import itertools
import hashlib
@ -9,7 +8,6 @@ import time
from .common import InfoExtractor
from ..compat import (
compat_str,
compat_HTTPError,
)
from ..utils import (
@ -19,9 +17,8 @@ from ..utils import (
int_or_none,
lowercase_escape,
std_headers,
try_get,
traverse_obj,
url_or_none,
variadic,
urlencode_postdata,
)
@ -72,6 +69,58 @@ class InstagramBaseIE(InfoExtractor):
def _real_initialize(self):
self._login()
def _get_count(self, media, kind, *keys):
return traverse_obj(
media, (kind, 'count'), *((f'edge_media_{key}', 'count') for key in keys),
expected_type=int_or_none)
def _get_dimension(self, name, media, webpage=None):
return (
traverse_obj(media, ('dimensions', name), expected_type=int_or_none)
or int_or_none(self._html_search_meta(
(f'og:video:{name}', f'video:{name}'), webpage or '', default=None)))
def _extract_nodes(self, nodes, is_direct=False):
for idx, node in enumerate(nodes, start=1):
if node.get('__typename') != 'GraphVideo' and node.get('is_video') is not True:
continue
video_id = node.get('shortcode')
if is_direct:
info = {
'id': video_id or node['id'],
'url': node.get('video_url'),
'width': self._get_dimension('width', node),
'height': self._get_dimension('height', node),
'http_headers': {
'Referer': 'https://www.instagram.com/',
}
}
elif not video_id:
continue
else:
info = {
'_type': 'url',
'ie_key': 'Instagram',
'id': video_id,
'url': f'https://instagram.com/p/{video_id}',
}
yield {
**info,
'title': node.get('title') or (f'Video {idx}' if is_direct else None),
'description': traverse_obj(
node, ('edge_media_to_caption', 'edges', 0, 'node', 'text'), expected_type=str),
'thumbnail': traverse_obj(
node, 'display_url', 'thumbnail_src', 'display_src', expected_type=url_or_none),
'duration': float_or_none(node.get('video_duration')),
'timestamp': int_or_none(node.get('taken_at_timestamp')),
'view_count': int_or_none(node.get('video_view_count')),
'comment_count': self._get_count(node, 'comments', 'preview_comment', 'to_comment', 'to_parent_comment'),
'like_count': self._get_count(node, 'likes', 'preview_like'),
}
class InstagramIOSIE(InfoExtractor):
IE_DESC = 'IOS instagram:// URL'
@ -234,29 +283,22 @@ class InstagramIE(InstagramBaseIE):
return mobj.group('link')
def _real_extract(self, url):
mobj = self._match_valid_url(url)
video_id = mobj.group('id')
url = mobj.group('url')
video_id, url = self._match_valid_url(url).group('id', 'url')
webpage, urlh = self._download_webpage_handle(url, video_id)
if 'www.instagram.com/accounts/login' in urlh.geturl().rstrip('/'):
if 'www.instagram.com/accounts/login' in urlh.geturl():
self.raise_login_required('You need to log in to access this content')
(media, video_url, description, thumbnails, timestamp, uploader,
uploader_id, like_count, comment_count, comments, height,
width) = [None] * 12
shared_data = self._parse_json(
self._search_regex(
r'window\._sharedData\s*=\s*({.+?});',
webpage, 'shared data', default='{}'),
video_id, fatal=False)
if shared_data:
media = try_get(
shared_data,
(lambda x: x['entry_data']['PostPage'][0]['graphql']['shortcode_media'],
lambda x: x['entry_data']['PostPage'][0]['media']),
dict)
media = traverse_obj(
shared_data,
('entry_data', 'PostPage', 0, 'graphql', 'shortcode_media'),
('entry_data', 'PostPage', 0, 'media'),
expected_type=dict)
# _sharedData.entry_data.PostPage is empty when authenticated (see
# https://github.com/ytdl-org/youtube-dl/pull/22880)
if not media:
@ -265,125 +307,71 @@ class InstagramIE(InstagramBaseIE):
r'window\.__additionalDataLoaded\s*\(\s*[^,]+,\s*({.+?})\s*\)\s*;',
webpage, 'additional data', default='{}'),
video_id, fatal=False)
if additional_data:
media = try_get(
additional_data, lambda x: x['graphql']['shortcode_media'],
dict)
if media:
video_url = media.get('video_url')
height = int_or_none(self._html_search_meta(('og:video:height', 'video:height'), webpage)) or try_get(media, lambda x: x['dimensions']['height'])
width = int_or_none(self._html_search_meta(('og:video:width', 'video:width'), webpage)) or try_get(media, lambda x: x['dimensions']['width'])
description = try_get(
media, lambda x: x['edge_media_to_caption']['edges'][0]['node']['text'],
compat_str) or media.get('caption')
title = media.get('title')
display_resources = media.get('display_resources')
if not display_resources:
display_resources = [{'src': media.get('display_src')}, {'src': media.get('display_url')}]
duration = float_or_none(media.get('video_duration'))
timestamp = int_or_none(media.get('taken_at_timestamp') or media.get('date'))
uploader = try_get(media, lambda x: x['owner']['full_name'])
uploader_id = try_get(media, lambda x: x['owner']['username'])
def get_count(keys, kind):
for key in variadic(keys):
count = int_or_none(try_get(
media, (lambda x: x['edge_media_%s' % key]['count'],
lambda x: x['%ss' % kind]['count'])))
if count is not None:
return count
like_count = get_count('preview_like', 'like')
comment_count = get_count(
('preview_comment', 'to_comment', 'to_parent_comment'), 'comment')
thumbnails = [{
'url': thumbnail['src'],
'width': thumbnail.get('config_width'),
'height': thumbnail.get('config_height'),
} for thumbnail in display_resources if thumbnail.get('src')]
comments = []
for comment in try_get(media, lambda x: x['edge_media_to_parent_comment']['edges']):
comment_dict = comment.get('node', {})
comment_text = comment_dict.get('text')
if comment_text:
comments.append({
'author': try_get(comment_dict, lambda x: x['owner']['username']),
'author_id': try_get(comment_dict, lambda x: x['owner']['id']),
'id': comment_dict.get('id'),
'text': comment_text,
'timestamp': int_or_none(comment_dict.get('created_at')),
})
if not video_url:
edges = try_get(
media, lambda x: x['edge_sidecar_to_children']['edges'],
list) or []
if edges:
entries = []
for edge_num, edge in enumerate(edges, start=1):
node = try_get(edge, lambda x: x['node'], dict)
if not node:
continue
node_video_url = url_or_none(node.get('video_url'))
if not node_video_url:
continue
entries.append({
'id': node.get('shortcode') or node['id'],
'title': node.get('title') or 'Video %d' % edge_num,
'url': node_video_url,
'thumbnail': node.get('display_url'),
'duration': float_or_none(node.get('video_duration')),
'width': int_or_none(try_get(node, lambda x: x['dimensions']['width'])),
'height': int_or_none(try_get(node, lambda x: x['dimensions']['height'])),
'view_count': int_or_none(node.get('video_view_count')),
})
return self.playlist_result(
entries, video_id,
'Post by %s' % uploader_id if uploader_id else None,
description)
media = traverse_obj(additional_data, ('graphql', 'shortcode_media'), expected_type=dict) or {}
uploader_id = traverse_obj(media, ('owner', 'username')) or self._search_regex(
r'"owner"\s*:\s*{\s*"username"\s*:\s*"(.+?)"', webpage, 'uploader id', fatal=False)
description = (
traverse_obj(media, ('edge_media_to_caption', 'edges', 0, 'node', 'text'), expected_type=str)
or media.get('caption'))
if not description:
description = self._search_regex(
r'"caption"\s*:\s*"(.+?)"', webpage, 'description', default=None)
if description is not None:
description = lowercase_escape(description)
video_url = media.get('video_url')
if not video_url:
nodes = traverse_obj(media, ('edge_sidecar_to_children', 'edges', ..., 'node'), expected_type=dict) or []
if nodes:
return self.playlist_result(
self._extract_nodes(nodes, True), video_id,
'Post by %s' % uploader_id if uploader_id else None, description)
video_url = self._og_search_video_url(webpage, secure=False)
formats = [{
'url': video_url,
'width': width,
'height': height,
'width': self._get_dimension('width', media, webpage),
'height': self._get_dimension('height', media, webpage),
}]
dash = try_get(media, lambda x: x['dash_info']['video_dash_manifest'])
dash = traverse_obj(media, ('dash_info', 'video_dash_manifest'))
if dash:
formats.extend(self._parse_mpd_formats(self._parse_xml(dash, video_id), mpd_id='dash'))
self._sort_formats(formats)
if not uploader_id:
uploader_id = self._search_regex(
r'"owner"\s*:\s*{\s*"username"\s*:\s*"(.+?)"',
webpage, 'uploader id', fatal=False)
if not description:
description = self._search_regex(
r'"caption"\s*:\s*"(.+?)"', webpage, 'description', default=None)
if description is not None:
description = lowercase_escape(description)
if not thumbnails:
thumbnails = self._og_search_thumbnail(webpage)
comments = [{
'author': traverse_obj(comment_dict, ('node', 'owner', 'username')),
'author_id': traverse_obj(comment_dict, ('node', 'owner', 'id')),
'id': traverse_obj(comment_dict, ('node', 'id')),
'text': traverse_obj(comment_dict, ('node', 'text')),
'timestamp': traverse_obj(comment_dict, ('node', 'created_at'), expected_type=int_or_none),
} for comment_dict in traverse_obj(media, ('edge_media_to_parent_comment', 'edges'))]
display_resources = (
media.get('display_resources')
or [{'src': media.get(key)} for key in ('display_src', 'display_url')]
or [{'src': self._og_search_thumbnail(webpage)}])
thumbnails = [{
'url': thumbnail['src'],
'width': thumbnail.get('config_width'),
'height': thumbnail.get('config_height'),
} for thumbnail in display_resources if thumbnail.get('src')]
return {
'id': video_id,
'formats': formats,
'ext': 'mp4',
'title': title or 'Video by %s' % uploader_id,
'title': media.get('title') or 'Video by %s' % uploader_id,
'description': description,
'duration': duration,
'thumbnails': thumbnails,
'timestamp': timestamp,
'duration': float_or_none(media.get('video_duration')),
'timestamp': traverse_obj(media, 'taken_at_timestamp', 'date', expected_type=int_or_none),
'uploader_id': uploader_id,
'uploader': uploader,
'like_count': like_count,
'comment_count': comment_count,
'uploader': traverse_obj(media, ('owner', 'full_name')),
'like_count': self._get_count(media, 'likes', 'preview_like'),
'comment_count': self._get_count(media, 'comments', 'preview_comment', 'to_comment', 'to_parent_comment'),
'comments': comments,
'thumbnails': thumbnails,
'http_headers': {
'Referer': 'https://www.instagram.com/',
}
@ -402,10 +390,6 @@ class InstagramPlaylistBaseIE(InstagramBaseIE):
def _extract_graphql(self, data, url):
# Parses GraphQL queries containing videos and generates a playlist.
def get_count(suffix):
return int_or_none(try_get(
node, lambda x: x['edge_media_' + suffix]['count']))
uploader_id = self._match_id(url)
csrf_token = data['config']['csrf_token']
rhx_gis = data.get('rhx_gis') or '3c7ca9dcefcf966d11dacf1f151335e8'
@ -454,55 +438,14 @@ class InstagramPlaylistBaseIE(InstagramBaseIE):
continue
raise
edges = media.get('edges')
if not edges or not isinstance(edges, list):
break
for edge in edges:
node = edge.get('node')
if not node or not isinstance(node, dict):
continue
if node.get('__typename') != 'GraphVideo' and node.get('is_video') is not True:
continue
video_id = node.get('shortcode')
if not video_id:
continue
info = self.url_result(
'https://instagram.com/p/%s/' % video_id,
ie=InstagramIE.ie_key(), video_id=video_id)
description = try_get(
node, lambda x: x['edge_media_to_caption']['edges'][0]['node']['text'],
compat_str)
thumbnail = node.get('thumbnail_src') or node.get('display_src')
timestamp = int_or_none(node.get('taken_at_timestamp'))
comment_count = get_count('to_comment')
like_count = get_count('preview_like')
view_count = int_or_none(node.get('video_view_count'))
info.update({
'description': description,
'thumbnail': thumbnail,
'timestamp': timestamp,
'comment_count': comment_count,
'like_count': like_count,
'view_count': view_count,
})
yield info
page_info = media.get('page_info')
if not page_info or not isinstance(page_info, dict):
break
has_next_page = page_info.get('has_next_page')
if not has_next_page:
nodes = traverse_obj(media, ('edges', ..., 'node'), expected_type=dict) or []
if not nodes:
break
yield from self._extract_nodes(nodes)
cursor = page_info.get('end_cursor')
if not cursor or not isinstance(cursor, compat_str):
has_next_page = traverse_obj(media, ('page_info', 'has_next_page'))
cursor = traverse_obj(media, ('page_info', 'end_cursor'), expected_type=str)
if not has_next_page or not cursor:
break
def _real_extract(self, url):

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