124 lines
4.3 KiB
Python
124 lines
4.3 KiB
Python
from youtube import util, yt_data_extract, proto, local_playlist
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from youtube import yt_app
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import base64
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import urllib
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import json
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import string
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import gevent
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import math
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from flask import request
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import flask
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def playlist_ctoken(playlist_id, offset):
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offset = proto.uint(1, offset)
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# this is just obfuscation as far as I can tell. It doesn't even follow protobuf
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offset = b'PT:' + proto.unpadded_b64encode(offset)
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offset = proto.string(15, offset)
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continuation_info = proto.string( 3, proto.percent_b64encode(offset) )
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playlist_id = proto.string(2, 'VL' + playlist_id )
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pointless_nest = proto.string(80226972, playlist_id + continuation_info)
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return base64.urlsafe_b64encode(pointless_nest).decode('ascii')
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# initial request types:
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# polymer_json: https://m.youtube.com/playlist?list=PLv3TTBr1W_9tppikBxAE_G6qjWdBljBHJ&pbj=1&lact=0
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# ajax json: https://m.youtube.com/playlist?list=PLv3TTBr1W_9tppikBxAE_G6qjWdBljBHJ&pbj=1&lact=0 with header X-YouTube-Client-Version: 1.20180418
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# continuation request types:
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# polymer_json: https://m.youtube.com/playlist?&ctoken=[...]&pbj=1
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# ajax json: https://m.youtube.com/playlist?action_continuation=1&ajax=1&ctoken=[...]
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headers_1 = (
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('Accept', '*/*'),
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('Accept-Language', 'en-US,en;q=0.5'),
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('X-YouTube-Client-Name', '2'),
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('X-YouTube-Client-Version', '2.20180614'),
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)
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def playlist_first_page(playlist_id, report_text = "Retrieved playlist"):
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url = 'https://m.youtube.com/playlist?list=' + playlist_id + '&pbj=1'
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content = util.fetch_url(url, util.mobile_ua + headers_1, report_text=report_text, debug_name='playlist_first_page')
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content = json.loads(util.uppercase_escape(content.decode('utf-8')))
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return content
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#https://m.youtube.com/playlist?itct=CBMQybcCIhMIptj9xJaJ2wIV2JKcCh3Idwu-&ctoken=4qmFsgI2EiRWTFBMT3kwajlBdmxWWlB0bzZJa2pLZnB1MFNjeC0tN1BHVEMaDmVnWlFWRHBEUWxFJTNE&pbj=1
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def get_videos(playlist_id, page):
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url = "https://m.youtube.com/playlist?ctoken=" + playlist_ctoken(playlist_id, (int(page)-1)*20) + "&pbj=1"
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headers = {
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'User-Agent': ' Mozilla/5.0 (iPhone; CPU iPhone OS 10_3_1 like Mac OS X) AppleWebKit/603.1.30 (KHTML, like Gecko) Version/10.0 Mobile/14E304 Safari/602.1',
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'Accept': '*/*',
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'Accept-Language': 'en-US,en;q=0.5',
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'X-YouTube-Client-Name': '2',
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'X-YouTube-Client-Version': '2.20180508',
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}
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content = util.fetch_url(url, headers, report_text="Retrieved playlist", debug_name='playlist_videos')
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info = json.loads(util.uppercase_escape(content.decode('utf-8')))
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return info
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@yt_app.route('/playlist')
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def get_playlist_page():
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if 'list' not in request.args:
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abort(400)
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playlist_id = request.args.get('list')
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page = request.args.get('page', '1')
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if page == '1':
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first_page_json = playlist_first_page(playlist_id)
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this_page_json = first_page_json
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else:
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tasks = (
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gevent.spawn(playlist_first_page, playlist_id, report_text="Retrieved playlist info" ),
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gevent.spawn(get_videos, playlist_id, page)
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)
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gevent.joinall(tasks)
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util.check_gevent_exceptions(*tasks)
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first_page_json, this_page_json = tasks[0].value, tasks[1].value
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info = yt_data_extract.extract_playlist_info(this_page_json)
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if info['error']:
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return flask.render_template('error.html', error_message = info['error'])
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if page != '1':
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info['metadata'] = yt_data_extract.extract_playlist_metadata(first_page_json)
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util.prefix_urls(info['metadata'])
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for item in info.get('items', ()):
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util.prefix_urls(item)
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util.add_extra_html_info(item)
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if 'id' in item:
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item['thumbnail'] = '/https://i.ytimg.com/vi/' + item['id'] + '/default.jpg'
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item['url'] += '&list=' + playlist_id
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if item['index']:
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item['url'] += '&index=' + str(item['index'])
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video_count = yt_data_extract.deep_get(info, 'metadata', 'video_count')
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if video_count is None:
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video_count = 40
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return flask.render_template('playlist.html',
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header_playlist_names = local_playlist.get_playlist_names(),
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video_list = info.get('items', []),
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num_pages = math.ceil(video_count/20),
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parameters_dictionary = request.args,
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**info['metadata']
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).encode('utf-8')
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