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