373 lines
13 KiB
Python
373 lines
13 KiB
Python
"""
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functionality:
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- get metadata from youtube for a channel
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- index and update in es
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"""
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import json
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import os
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import re
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from datetime import datetime
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import requests
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from bs4 import BeautifulSoup
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from home.src.download import queue # partial import
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from home.src.download.thumbnails import ThumbManager
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from home.src.download.yt_dlp_base import YtWrap
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from home.src.es.connect import ElasticWrap, IndexPaginate
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from home.src.index.generic import YouTubeItem
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from home.src.index.playlist import YoutubePlaylist
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from home.src.ta.helper import clean_string, requests_headers
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from home.src.ta.ta_redis import RedisArchivist
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class ChannelScraper:
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"""custom scraper using bs4 to scrape channel about page
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will be able to be integrated into yt-dlp
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once #2237 and #2350 are merged upstream
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"""
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def __init__(self, channel_id):
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self.channel_id = channel_id
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self.soup = False
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self.yt_json = False
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self.json_data = False
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def get_json(self):
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"""main method to return channel dict"""
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self.get_soup()
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self._extract_yt_json()
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self._parse_channel_main()
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self._parse_channel_meta()
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return self.json_data
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def get_soup(self):
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"""return soup from youtube"""
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print(f"{self.channel_id}: scrape channel data from youtube")
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url = f"https://www.youtube.com/channel/{self.channel_id}/about?hl=en"
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cookies = {"CONSENT": "YES+xxxxxxxxxxxxxxxxxxxxxxxxxxx"}
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response = requests.get(
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url, cookies=cookies, headers=requests_headers()
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)
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if response.ok:
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channel_page = response.text
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else:
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print(f"{self.channel_id}: failed to extract channel info")
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raise ConnectionError
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self.soup = BeautifulSoup(channel_page, "html.parser")
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def _extract_yt_json(self):
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"""parse soup and get ytInitialData json"""
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all_scripts = self.soup.find("body").find_all("script")
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for script in all_scripts:
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if "var ytInitialData = " in str(script):
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script_content = str(script)
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break
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# extract payload
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script_content = script_content.split("var ytInitialData = ")[1]
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json_raw = script_content.rstrip(";</script>")
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self.yt_json = json.loads(json_raw)
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def _parse_channel_main(self):
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"""extract maintab values from scraped channel json data"""
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main_tab = self.yt_json["header"]["c4TabbedHeaderRenderer"]
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# build and return dict
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self.json_data = {
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"channel_active": True,
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"channel_last_refresh": int(datetime.now().strftime("%s")),
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"channel_subs": self._get_channel_subs(main_tab),
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"channel_name": main_tab["title"],
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"channel_banner_url": self._get_thumbnails(main_tab, "banner"),
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"channel_tvart_url": self._get_thumbnails(main_tab, "tvBanner"),
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"channel_id": self.channel_id,
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"channel_subscribed": False,
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}
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@staticmethod
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def _get_thumbnails(main_tab, thumb_name):
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"""extract banner url from main_tab"""
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try:
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all_banners = main_tab[thumb_name]["thumbnails"]
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banner = sorted(all_banners, key=lambda k: k["width"])[-1]["url"]
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except KeyError:
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banner = False
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return banner
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@staticmethod
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def _get_channel_subs(main_tab):
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"""process main_tab to get channel subs as int"""
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try:
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sub_text_simple = main_tab["subscriberCountText"]["simpleText"]
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sub_text = sub_text_simple.split(" ")[0]
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if sub_text[-1] == "K":
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channel_subs = int(float(sub_text.replace("K", "")) * 1000)
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elif sub_text[-1] == "M":
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channel_subs = int(float(sub_text.replace("M", "")) * 1000000)
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elif int(sub_text) >= 0:
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channel_subs = int(sub_text)
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else:
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message = f"{sub_text} not dealt with"
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print(message)
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except KeyError:
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channel_subs = 0
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return channel_subs
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def _parse_channel_meta(self):
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"""extract meta tab values from channel payload"""
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# meta tab
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meta_tab = self.yt_json["metadata"]["channelMetadataRenderer"]
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all_thumbs = meta_tab["avatar"]["thumbnails"]
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thumb_url = sorted(all_thumbs, key=lambda k: k["width"])[-1]["url"]
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# stats tab
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renderer = "twoColumnBrowseResultsRenderer"
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all_tabs = self.yt_json["contents"][renderer]["tabs"]
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for tab in all_tabs:
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if "tabRenderer" in tab.keys():
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if tab["tabRenderer"]["title"] == "About":
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about_tab = tab["tabRenderer"]["content"][
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"sectionListRenderer"
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]["contents"][0]["itemSectionRenderer"]["contents"][0][
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"channelAboutFullMetadataRenderer"
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]
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break
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try:
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channel_views_text = about_tab["viewCountText"]["simpleText"]
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channel_views = int(re.sub(r"\D", "", channel_views_text))
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except KeyError:
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channel_views = 0
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self.json_data.update(
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{
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"channel_description": meta_tab["description"],
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"channel_thumb_url": thumb_url,
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"channel_views": channel_views,
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}
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)
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class YoutubeChannel(YouTubeItem):
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"""represents a single youtube channel"""
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es_path = False
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index_name = "ta_channel"
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yt_base = "https://www.youtube.com/channel/"
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msg = "message:playlistscan"
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def __init__(self, youtube_id):
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super().__init__(youtube_id)
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self.es_path = f"{self.index_name}/_doc/{youtube_id}"
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self.all_playlists = False
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def build_json(self, upload=False):
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"""get from es or from youtube"""
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self.get_from_es()
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if self.json_data:
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return
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self.get_from_youtube()
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if upload:
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self.upload_to_es()
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return
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def get_from_youtube(self):
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"""use bs4 to scrape channel about page"""
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self.json_data = ChannelScraper(self.youtube_id).get_json()
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self.get_channel_art()
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def get_channel_art(self):
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"""download channel art for new channels"""
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channel_id = self.youtube_id
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channel_thumb = self.json_data["channel_thumb_url"]
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channel_banner = self.json_data["channel_banner_url"]
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ThumbManager().download_chan(
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[(channel_id, channel_thumb, channel_banner)]
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)
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def sync_to_videos(self):
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"""sync new channel_dict to all videos of channel"""
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# add ingest pipeline
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processors = []
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for field, value in self.json_data.items():
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line = {"set": {"field": "channel." + field, "value": value}}
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processors.append(line)
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data = {"description": self.youtube_id, "processors": processors}
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ingest_path = f"_ingest/pipeline/{self.youtube_id}"
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_, _ = ElasticWrap(ingest_path).put(data)
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# apply pipeline
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data = {"query": {"match": {"channel.channel_id": self.youtube_id}}}
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update_path = f"ta_video/_update_by_query?pipeline={self.youtube_id}"
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_, _ = ElasticWrap(update_path).post(data)
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def get_folder_path(self):
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"""get folder where media files get stored"""
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channel_name = self.json_data["channel_name"]
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folder_name = clean_string(channel_name)
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if len(folder_name) <= 3:
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# fall back to channel id
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folder_name = self.json_data["channel_id"]
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folder_path = os.path.join(self.app_conf["videos"], folder_name)
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return folder_path
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def delete_es_videos(self):
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"""delete all channel documents from elasticsearch"""
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data = {
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"query": {
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"term": {"channel.channel_id": {"value": self.youtube_id}}
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}
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}
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_, _ = ElasticWrap("ta_video/_delete_by_query").post(data)
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def delete_playlists(self):
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"""delete all indexed playlist from es"""
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all_playlists = self.get_indexed_playlists()
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for playlist in all_playlists:
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playlist_id = playlist["playlist_id"]
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YoutubePlaylist(playlist_id).delete_metadata()
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def delete_channel(self):
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"""delete channel and all videos"""
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print(f"{self.youtube_id}: delete channel")
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self.get_from_es()
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folder_path = self.get_folder_path()
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print(f"{self.youtube_id}: delete all media files")
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try:
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all_videos = os.listdir(folder_path)
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for video in all_videos:
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video_path = os.path.join(folder_path, video)
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os.remove(video_path)
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os.rmdir(folder_path)
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except FileNotFoundError:
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print(f"no videos found for {folder_path}")
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print(f"{self.youtube_id}: delete indexed playlists")
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self.delete_playlists()
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print(f"{self.youtube_id}: delete indexed videos")
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self.delete_es_videos()
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self.del_in_es()
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def index_channel_playlists(self):
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"""add all playlists of channel to index"""
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print(f"{self.youtube_id}: index all playlists")
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self.get_from_es()
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channel_name = self.json_data["channel_name"]
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mess_dict = {
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"status": self.msg,
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"level": "info",
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"title": "Looking for playlists",
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"message": f"{channel_name}: Scanning channel in progress",
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}
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RedisArchivist().set_message(self.msg, mess_dict, expire=True)
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self.get_all_playlists()
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if not self.all_playlists:
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print(f"{self.youtube_id}: no playlists found.")
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return
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all_youtube_ids = self.get_all_video_ids()
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for idx, playlist in enumerate(self.all_playlists):
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self._notify_single_playlist(idx, playlist)
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self._index_single_playlist(playlist, all_youtube_ids)
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def _notify_single_playlist(self, idx, playlist):
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"""send notification"""
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channel_name = self.json_data["channel_name"]
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mess_dict = {
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"status": self.msg,
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"level": "info",
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"title": f"{channel_name}: Scanning channel for playlists",
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"message": f"Progress: {idx + 1}/{len(self.all_playlists)}",
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}
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RedisArchivist().set_message(self.msg, mess_dict, expire=True)
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print("add playlist: " + playlist[1])
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@staticmethod
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def _index_single_playlist(playlist, all_youtube_ids):
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"""add single playlist if needed"""
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playlist = YoutubePlaylist(playlist[0])
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playlist.all_youtube_ids = all_youtube_ids
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playlist.build_json()
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if not playlist.json_data:
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return
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entries = playlist.json_data["playlist_entries"]
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downloaded = [i for i in entries if i["downloaded"]]
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if not downloaded:
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return
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playlist.upload_to_es()
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playlist.add_vids_to_playlist()
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playlist.get_playlist_art()
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@staticmethod
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def get_all_video_ids():
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"""match all playlists with videos"""
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handler = queue.PendingList()
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handler.get_download()
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handler.get_indexed()
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all_youtube_ids = [i["youtube_id"] for i in handler.all_videos]
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return all_youtube_ids
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def get_all_playlists(self):
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"""get all playlists owned by this channel"""
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url = (
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f"https://www.youtube.com/channel/{self.youtube_id}"
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+ "/playlists?view=1&sort=dd&shelf_id=0"
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)
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obs = {"skip_download": True, "extract_flat": True}
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playlists = YtWrap(obs, self.config).extract(url)
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all_entries = [(i["id"], i["title"]) for i in playlists["entries"]]
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self.all_playlists = all_entries
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def get_indexed_playlists(self):
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"""get all indexed playlists from channel"""
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data = {
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"query": {
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"term": {"playlist_channel_id": {"value": self.youtube_id}}
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},
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"sort": [{"playlist_channel.keyword": {"order": "desc"}}],
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}
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all_playlists = IndexPaginate("ta_playlist", data).get_results()
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return all_playlists
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def get_overwrites(self):
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"""get all per channel overwrites"""
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return self.json_data.get("channel_overwrites", False)
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def set_overwrites(self, overwrites):
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"""set per channel overwrites"""
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valid_keys = [
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"download_format",
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"autodelete_days",
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"index_playlists",
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"integrate_sponsorblock",
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]
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to_write = self.json_data.get("channel_overwrites", {})
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for key, value in overwrites.items():
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if key not in valid_keys:
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raise ValueError(f"invalid overwrite key: {key}")
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if value == "disable":
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to_write[key] = False
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continue
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if value in [0, "0"]:
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del to_write[key]
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continue
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if value == "1":
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to_write[key] = True
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continue
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if value:
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to_write.update({key: value})
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self.json_data["channel_overwrites"] = to_write
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def channel_overwrites(channel_id, overwrites):
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"""collection to overwrite settings per channel"""
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channel = YoutubeChannel(channel_id)
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channel.build_json()
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channel.set_overwrites(overwrites)
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channel.upload_to_es()
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channel.sync_to_videos()
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