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[instagram] Add base extractor for playlists and tag extractor

This commit is contained in:
jhwgh1968 2019-01-20 09:10:46 +00:00 committed by Sergey M
parent 15870747f0
commit 31fbedc06a
2 changed files with 105 additions and 37 deletions
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6
youtube_dl/extractor/extractors.py
View File

@ -494,7 +494,11 @@ from .ina import InaIE
from .inc import IncIE
from .indavideo import IndavideoEmbedIE
from .infoq import InfoQIE
from .instagram import InstagramIE, InstagramUserIE
from .instagram import (
InstagramIE,
InstagramUserIE,
InstagramTagIE,
)
from .internazionale import InternazionaleIE
from .internetvideoarchive import InternetVideoArchiveIE
from .iprima import IPrimaIE

136
youtube_dl/extractor/instagram.py
View File

@ -227,44 +227,37 @@ class InstagramIE(InfoExtractor):
}
class InstagramUserIE(InfoExtractor):
_VALID_URL = r'https?://(?:www\.)?instagram\.com/(?P<id>[^/]{2,})/?(?:$|[?#])'
IE_DESC = 'Instagram user profile'
IE_NAME = 'instagram:user'
_TEST = {
'url': 'https://instagram.com/porsche',
'info_dict': {
'id': 'porsche',
'title': 'porsche',
},
'playlist_count': 5,
'params': {
'extract_flat': True,
'skip_download': True,
'playlistend': 5,
}
}
class InstagramPlaylistIE(InfoExtractor):
# A superclass for handling any kind of query based on GraphQL which
# results in a playlist.
_gis_tmpl = None
_gis_tmpl = None # used to cache GIS request type
def _entries(self, data):
def _parse_graphql(self, webpage, item_id):
# Reads a webpage and returns its GraphQL data.
return self._parse_json(
self._search_regex(
r'sharedData\s*=\s*({.+?})\s*;\s*[<\n]', webpage, 'data'),
item_id)
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 = data['entry_data']['ProfilePage'][0]['graphql']['user']['id']
uploader_id = self._match_id(url)
csrf_token = data['config']['csrf_token']
rhx_gis = data.get('rhx_gis') or '3c7ca9dcefcf966d11dacf1f151335e8'
self._set_cookie('instagram.com', 'ig_pr', '1')
cursor = ''
for page_num in itertools.count(1):
variables = json.dumps({
'id': uploader_id,
variables = {
'first': 12,
'after': cursor,
})
}
variables.update(self._query_vars_for(data))
variables = json.dumps(variables)
if self._gis_tmpl:
gis_tmpls = [self._gis_tmpl]
@ -276,21 +269,26 @@ class InstagramUserIE(InfoExtractor):
'%s:%s:%s' % (rhx_gis, csrf_token, std_headers['User-Agent']),
]
# try all of the ways to generate a GIS query, and not only use the
# first one that works, but cache it for future requests
for gis_tmpl in gis_tmpls:
try:
media = self._download_json(
json_data = self._download_json(
'https://www.instagram.com/graphql/query/', uploader_id,
'Downloading JSON page %d' % page_num, headers={
'X-Requested-With': 'XMLHttpRequest',
'X-Instagram-GIS': hashlib.md5(
('%s:%s' % (gis_tmpl, variables)).encode('utf-8')).hexdigest(),
}, query={
'query_hash': '42323d64886122307be10013ad2dcc44',
'query_hash': self._QUERY_HASH,
'variables': variables,
})['data']['user']['edge_owner_to_timeline_media']
})
media = self._parse_timeline_from(json_data)
self._gis_tmpl = gis_tmpl
break
except ExtractorError as e:
# if it's an error caused by a bad query, and there are
# more GIS templates to try, ignore it and keep trying
if isinstance(e.cause, compat_HTTPError) and e.cause.code == 403:
if gis_tmpl != gis_tmpls[-1]:
continue
@ -348,14 +346,80 @@ class InstagramUserIE(InfoExtractor):
break
def _real_extract(self, url):
username = self._match_id(url)
user_or_tag = self._match_id(url)
webpage = self._download_webpage(url, user_or_tag)
data = self._parse_graphql(webpage, user_or_tag)
webpage = self._download_webpage(url, username)
data = self._parse_json(
self._search_regex(
r'sharedData\s*=\s*({.+?})\s*;\s*[<\n]', webpage, 'data'),
username)
self._set_cookie('instagram.com', 'ig_pr', '1')
return self.playlist_result(
self._entries(data), username, username)
self._extract_graphql(data, url), user_or_tag, user_or_tag)
class InstagramUserIE(InstagramPlaylistIE):
_VALID_URL = r'https?://(?:www\.)?instagram\.com/(?P<id>[^/]{2,})/?(?:$|[?#])'
IE_DESC = 'Instagram user profile'
IE_NAME = 'instagram:user'
_TEST = {
'url': 'https://instagram.com/porsche',
'info_dict': {
'id': 'porsche',
'title': 'porsche',
},
'playlist_count': 5,
'params': {
'extract_flat': True,
'skip_download': True,
'playlistend': 5,
}
}
_QUERY_HASH = '42323d64886122307be10013ad2dcc44',
@staticmethod
def _parse_timeline_from(data):
# extracts the media timeline data from a GraphQL result
return data['data']['user']['edge_owner_to_timeline_media']
@staticmethod
def _query_vars_for(data):
# returns a dictionary of variables to add to the timeline query based
# on the GraphQL of the original page
return {
'id': data['entry_data']['ProfilePage'][0]['graphql']['user']['id']
}
class InstagramTagIE(InstagramPlaylistIE):
_VALID_URL = r'https?://(?:www\.)?instagram\.com/explore/tags/(?P<id>[^/]+)'
IE_DESC = 'Instagram hashtag search'
IE_NAME = 'instagram:tag'
_TEST = {
'url': 'https://instagram.com/explore/tags/lolcats',
'info_dict': {
'id': 'lolcats',
'title': 'lolcats',
},
'playlist_count': 50,
'params': {
'extract_flat': True,
'skip_download': True,
'playlistend': 50,
}
}
_QUERY_HASH = 'f92f56d47dc7a55b606908374b43a314',
@staticmethod
def _parse_timeline_from(data):
# extracts the media timeline data from a GraphQL result
return data['data']['hashtag']['edge_hashtag_to_media']
@staticmethod
def _query_vars_for(data):
# returns a dictionary of variables to add to the timeline query based
# on the GraphQL of the original page
return {
'tag_name':
data['entry_data']['TagPage'][0]['graphql']['hashtag']['name']
}