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import base64
import youtube.common as common
from youtube.common import default_multi_get, URL_ORIGIN, get_thumbnail_url, video_id
import urllib
import json
from string import Template
import youtube.proto as proto
import html
import math
import gevent
import re
import functools
with open("yt_channel_items_template.html", "r") as file:
yt_channel_items_template = Template(file.read())
with open("yt_channel_about_template.html", "r") as file:
yt_channel_about_template = Template(file.read())
'''continuation = Proto(
Field('optional', 'continuation', 80226972, Proto(
Field('optional', 'browse_id', 2, String),
Field('optional', 'params', 3, Base64(Proto(
Field('optional', 'channel_tab', 2, String),
Field('optional', 'sort', 3, ENUM
Field('optional', 'page', 15, String),
)))
))
)'''
'''channel_continuation = Proto(
Field('optional', 'pointless_nest', 80226972, Proto(
Field('optional', 'channel_id', 2, String),
Field('optional', 'continuation_info', 3, Base64(Proto(
Field('optional', 'channel_tab', 2, String),
Field('optional', 'sort', 3, ENUM
Field('optional', 'page', 15, String),
)))
))
)'''
headers_1 = (
('Accept', '*/*'),
('Accept-Language', 'en-US,en;q=0.5'),
('X-YouTube-Client-Name', '1'),
('X-YouTube-Client-Version', '2.20180614'),
)
# https://www.youtube.com/browse_ajax?action_continuation=1&direct_render=1&continuation=4qmFsgJAEhhVQzdVY3M0MkZaeTN1WXpqcnF6T0lIc3caJEVnWjJhV1JsYjNNZ0FEZ0JZQUZxQUhvQk1yZ0JBQSUzRCUzRA%3D%3D
# https://www.youtube.com/browse_ajax?ctoken=4qmFsgJAEhhVQzdVY3M0MkZaeTN1WXpqcnF6T0lIc3caJEVnWjJhV1JsYjNNZ0FEZ0JZQUZxQUhvQk1yZ0JBQSUzRCUzRA%3D%3D&continuation=4qmFsgJAEhhVQzdVY3M0MkZaeTN1WXpqcnF6T0lIc3caJEVnWjJhV1JsYjNNZ0FEZ0JZQUZxQUhvQk1yZ0JBQSUzRCUzRA%3D%3D&itct=CDsQybcCIhMIhZi1krTc2wIVjMicCh2HXQnhKJsc
# grid view: 4qmFsgJAEhhVQzdVY3M0MkZaeTN1WXpqcnF6T0lIc3caJEVnWjJhV1JsYjNNZ0FEZ0JZQUZxQUhvQk1yZ0JBQSUzRCUzRA
# list view: 4qmFsgJCEhhVQzdVY3M0MkZaeTN1WXpqcnF6T0lIc3caJkVnWjJhV1JsYjNNWUF5QUFNQUk0QVdBQmFnQjZBVEs0QVFBJTNE
# SORT:
# Popular - 1
# Oldest - 2
# Newest - 3
# view:
# grid: 0 or 1
# list: 2
def channel_ctoken(channel_id, page, sort, tab, view=1):
tab = proto.string(2, tab )
sort = proto.uint(3, int(sort))
page = proto.string(15, str(page) )
view = proto.uint(6, int(view))
continuation_info = proto.string( 3, proto.percent_b64encode(tab + view + sort + page) )
channel_id = proto.string(2, channel_id )
pointless_nest = proto.string(80226972, channel_id + continuation_info)
return base64.urlsafe_b64encode(pointless_nest).decode('ascii')
def get_channel_tab(channel_id, page="1", sort=3, tab='videos', view=1):
ctoken = channel_ctoken(channel_id, page, sort, tab, view).replace('=', '%3D')
url = "https://www.youtube.com/browse_ajax?ctoken=" + ctoken
print("Sending channel tab ajax request")
content = common.fetch_url(url, headers_1)
print("Finished recieving channel tab response")
'''with open('debug/channel_debug', 'wb') as f:
f.write(content)'''
info = json.loads(content)
return info
grid_video_item_template = Template('''
<div class="small-item-box">
<div class="small-item">
<a class="video-thumbnail-box" href="$url" title="$title">
<img class="video-thumbnail-img" src="$thumbnail">
<span class="video-duration">$duration</span>
</a>
<a class="title" href="$url" title="$title">$title</a>
<span class="views">$views</span>
<time datetime="$datetime">Uploaded $published</time>
</div>
<input class="item-checkbox" type="checkbox" name="video_info_list" value="$video_info" form="playlist-add">
</div>
''')
def grid_video_item_info(grid_video_renderer, author):
renderer = grid_video_renderer
return {
"title": renderer['title']['simpleText'],
"id": renderer['videoId'],
"views": renderer['viewCountText'].get('simpleText', None) or renderer['viewCountText']['runs'][0]['text'],
"author": author,
"duration": default_multi_get(renderer, 'lengthText', 'simpleText', default=''), # livestreams dont have a length
"published": default_multi_get(renderer, 'publishedTimeText', 'simpleText', default=''),
}
def grid_video_item_html(item):
video_info = json.dumps({key: item[key] for key in ('id', 'title', 'author', 'duration')})
return grid_video_item_template.substitute(
title = html.escape(item["title"]),
views = item["views"],
duration = item["duration"],
url = URL_ORIGIN + "/watch?v=" + item["id"],
thumbnail = get_thumbnail_url(item['id']),
video_info = html.escape(json.dumps(video_info)),
published = item["published"],
datetime = '', # TODO
)
def get_number_of_videos(channel_id):
# Uploads playlist
playlist_id = 'UU' + channel_id[2:]
url = 'https://m.youtube.com/playlist?list=' + playlist_id + '&ajax=1&disable_polymer=true'
print("Getting number of videos")
response = common.fetch_url(url, common.mobile_ua + headers_1)
'''with open('debug/playlist_debug_metadata', 'wb') as f:
f.write(response)'''
response = response.decode('utf-8')
print("Got response for number of videos")
match = re.search(r'"num_videos_text":\s*{(?:"item_type":\s*"formatted_string",)?\s*"runs":\s*\[{"text":\s*"([\d,]*) videos"', response)
if match:
return int(match.group(1).replace(',',''))
else:
return 0
@functools.lru_cache(maxsize=128)
def get_channel_id(username):
# method that gives the smallest possible response at ~10 kb
# needs to be as fast as possible
url = 'https://m.youtube.com/user/' + username + '/about?ajax=1&disable_polymer=true'
response = common.fetch_url(url, common.mobile_ua + headers_1).decode('utf-8')
return re.search(r'"channel_id":\s*"([a-zA-Z0-9_-]*)"', response).group(1)
def grid_items_html(items, additional_info={}):
result = ''' <nav class="item-grid">\n'''
for item in items:
result += common.renderer_html(item, additional_info)
result += '''\n</nav>'''
return result
def channel_videos_html(polymer_json, current_page=1, number_of_videos = 1000, current_query_string=''):
microformat = polymer_json[1]['response']['microformat']['microformatDataRenderer']
channel_url = microformat['urlCanonical'].rstrip('/')
channel_id = channel_url[channel_url.rfind('/')+1:]
try:
items = polymer_json[1]['response']['continuationContents']['gridContinuation']['items']
except KeyError:
response = polymer_json[1]['response']
try:
contents = response['contents']
except KeyError:
items = []
else:
items = contents['twoColumnBrowseResultsRenderer']['tabs'][1]['tabRenderer']['content']['sectionListRenderer']['contents'][0]['itemSectionRenderer']['contents'][0]['gridRenderer']['items']
items_html = grid_items_html(items, {'author': microformat['title']})
return yt_channel_items_template.substitute(
channel_title = microformat['title'],
channel_about_url = URL_ORIGIN + "/channel/" + channel_id + "/about",
avatar = '/' + microformat['thumbnail']['thumbnails'][0]['url'],
page_title = microformat['title'] + ' - Channel',
items = items_html,
page_buttons = common.page_buttons_html(current_page, math.ceil(number_of_videos/30), URL_ORIGIN + "/channel/" + channel_id + "/videos", current_query_string),
number_of_results = '{:,}'.format(number_of_videos) + " videos",
)
channel_link_template = Template('''
<a href="$url">$text</a>''')
stat_template = Template('''
<li>$stat_value</li>''')
def channel_about_page(polymer_json):
avatar = '/' + polymer_json[1]['response']['microformat']['microformatDataRenderer']['thumbnail']['thumbnails'][0]['url']
# my goodness...
channel_metadata = polymer_json[1]['response']['contents']['twoColumnBrowseResultsRenderer']['tabs'][5]['tabRenderer']['content']['sectionListRenderer']['contents'][0]['itemSectionRenderer']['contents'][0]['channelAboutFullMetadataRenderer']
channel_links = ''
for link_json in channel_metadata['primaryLinks']:
channel_links += channel_link_template.substitute(
url = html.escape(link_json['navigationEndpoint']['urlEndpoint']['url']),
text = common.get_plain_text(link_json['title']),
)
stats = ''
for stat_name in ('subscriberCountText', 'joinedDateText', 'viewCountText', 'country'):
try:
stat_value = common.get_plain_text(channel_metadata[stat_name])
except KeyError:
continue
else:
stats += stat_template.substitute(stat_value=stat_value)
try:
description = common.format_text_runs(common.get_formatted_text(channel_metadata['description']))
except KeyError:
description = ''
return yt_channel_about_template.substitute(
page_title = common.get_plain_text(channel_metadata['title']) + ' - About',
channel_title = common.get_plain_text(channel_metadata['title']),
avatar = html.escape(avatar),
description = description,
links = channel_links,
stats = stats,
channel_videos_url = common.URL_ORIGIN + '/channel/' + channel_metadata['channelId'] + '/videos',
)
def get_channel_page(url, query_string=''):
path_components = url.rstrip('/').lstrip('/').split('/')
channel_id = path_components[0]
try:
tab = path_components[1]
except IndexError:
tab = 'videos'
parameters = urllib.parse.parse_qs(query_string)
page_number = int(common.default_multi_get(parameters, 'page', 0, default='1'))
sort = common.default_multi_get(parameters, 'sort', 0, default='3')
view = common.default_multi_get(parameters, 'view', 0, default='1')
if tab == 'videos':
tasks = (
gevent.spawn(get_number_of_videos, channel_id ),
gevent.spawn(get_channel_tab, channel_id, page_number, sort, 'videos', view)
)
gevent.joinall(tasks)
number_of_videos, polymer_json = tasks[0].value, tasks[1].value
return channel_videos_html(polymer_json, page_number, number_of_videos, query_string)
elif tab == 'about':
polymer_json = common.fetch_url('https://www.youtube.com/channel/' + channel_id + '/about?pbj=1', headers_1)
polymer_json = json.loads(polymer_json)
return channel_about_page(polymer_json)
else:
raise ValueError('Unknown channel tab: ' + tab)
def get_user_page(url, query_string=''):
path_components = url.rstrip('/').lstrip('/').split('/')
username = path_components[0]
try:
page = path_components[1]
except IndexError:
page = 'videos'
if page == 'videos':
polymer_json = common.fetch_url('https://www.youtube.com/user/' + username + '/videos?pbj=1', headers_1)
polymer_json = json.loads(polymer_json)
return channel_videos_html(polymer_json)
elif page == 'about':
polymer_json = common.fetch_url('https://www.youtube.com/user/' + username + '/about?pbj=1', headers_1)
polymer_json = json.loads(polymer_json)
return channel_about_page(polymer_json)
else:
raise ValueError('Unknown channel page: ' + page)
|
