diff options
Diffstat (limited to 'youtube/yt_data_extract/everything_else.py')
| -rw-r--r-- | youtube/yt_data_extract/everything_else.py | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/youtube/yt_data_extract/everything_else.py b/youtube/yt_data_extract/everything_else.py new file mode 100644 index 0000000..6277c8d --- /dev/null +++ b/youtube/yt_data_extract/everything_else.py @@ -0,0 +1,273 @@ +from .common import (get, multi_get, deep_get, multi_deep_get, + liberal_update, conservative_update, remove_redirect, normalize_url, + extract_str, extract_formatted_text, extract_int, extract_approx_int, + extract_date, check_missing_keys, extract_item_info, extract_items, + extract_response) +from youtube import proto + +import re +import urllib +from math import ceil + +def extract_channel_info(polymer_json, tab): + response, err = extract_response(polymer_json) + if err: + return {'error': err} + + try: + microformat = response['microformat']['microformatDataRenderer'] + + # channel doesn't exist or was terminated + # example terminated channel: https://www.youtube.com/channel/UCnKJeK_r90jDdIuzHXC0Org + except KeyError: + if 'alerts' in response and len(response['alerts']) > 0: + return {'error': ' '.join(alert['alertRenderer']['text']['simpleText'] for alert in response['alerts']) } + elif 'errors' in response['responseContext']: + for error in response['responseContext']['errors']['error']: + if error['code'] == 'INVALID_VALUE' and error['location'] == 'browse_id': + return {'error': 'This channel does not exist'} + return {'error': 'Failure getting microformat'} + + info = {'error': None} + info['current_tab'] = tab + + + # stuff from microformat (info given by youtube for every page on channel) + info['short_description'] = microformat['description'] + info['channel_name'] = microformat['title'] + info['avatar'] = microformat['thumbnail']['thumbnails'][0]['url'] + channel_url = microformat['urlCanonical'].rstrip('/') + channel_id = channel_url[channel_url.rfind('/')+1:] + info['channel_id'] = channel_id + info['channel_url'] = 'https://www.youtube.com/channel/' + channel_id + + info['items'] = [] + + # empty channel + if 'contents' not in response and 'continuationContents' not in response: + return info + + + items, _ = extract_items(response) + if tab in ('videos', 'playlists', 'search'): + additional_info = {'author': info['channel_name'], 'author_url': 'https://www.youtube.com/channel/' + channel_id} + info['items'] = [extract_item_info(renderer, additional_info) for renderer in items] + + elif tab == 'about': + for item in items: + try: + channel_metadata = item['channelAboutFullMetadataRenderer'] + break + except KeyError: + pass + else: + info['error'] = 'Could not find channelAboutFullMetadataRenderer' + return info + + info['links'] = [] + for link_json in channel_metadata.get('primaryLinks', ()): + url = remove_redirect(link_json['navigationEndpoint']['urlEndpoint']['url']) + + text = extract_str(link_json['title']) + + info['links'].append( (text, url) ) + + + info['stats'] = [] + for stat_name in ('subscriberCountText', 'joinedDateText', 'viewCountText', 'country'): + try: + stat = channel_metadata[stat_name] + except KeyError: + continue + info['stats'].append(extract_str(stat)) + + if 'description' in channel_metadata: + info['description'] = extract_str(channel_metadata['description']) + else: + info['description'] = '' + + else: + raise NotImplementedError('Unknown or unsupported channel tab: ' + tab) + + return info + +def extract_search_info(polymer_json): + response, err = extract_response(polymer_json) + if err: + return {'error': err} + info = {'error': None} + info['estimated_results'] = int(response['estimatedResults']) + info['estimated_pages'] = ceil(info['estimated_results']/20) + + + results, _ = extract_items(response) + + + info['items'] = [] + info['corrections'] = {'type': None} + for renderer in results: + type = list(renderer.keys())[0] + if type == 'shelfRenderer': + continue + if type == 'didYouMeanRenderer': + renderer = renderer[type] + + info['corrections'] = { + 'type': 'did_you_mean', + 'corrected_query': renderer['correctedQueryEndpoint']['searchEndpoint']['query'], + 'corrected_query_text': renderer['correctedQuery']['runs'], + } + continue + if type == 'showingResultsForRenderer': + renderer = renderer[type] + + info['corrections'] = { + 'type': 'showing_results_for', + 'corrected_query_text': renderer['correctedQuery']['runs'], + 'original_query_text': renderer['originalQuery']['simpleText'], + } + continue + + i_info = extract_item_info(renderer) + if i_info.get('type') != 'unsupported': + info['items'].append(i_info) + + + return info + +def extract_playlist_metadata(polymer_json): + response, err = extract_response(polymer_json) + if err: + return {'error': err} + + metadata = {'error': None} + header = deep_get(response, 'header', 'playlistHeaderRenderer', default={}) + metadata['title'] = extract_str(header.get('title')) + + metadata['first_video_id'] = deep_get(header, 'playEndpoint', 'watchEndpoint', 'videoId') + first_id = re.search(r'([a-z_\-]{11})', deep_get(header, + 'thumbnail', 'thumbnails', 0, 'url', default='')) + if first_id: + conservative_update(metadata, 'first_video_id', first_id.group(1)) + if metadata['first_video_id'] is None: + metadata['thumbnail'] = None + else: + metadata['thumbnail'] = 'https://i.ytimg.com/vi/' + metadata['first_video_id'] + '/mqdefault.jpg' + + metadata['video_count'] = extract_int(header.get('numVideosText')) + metadata['description'] = extract_str(header.get('descriptionText'), default='') + metadata['author'] = extract_str(header.get('ownerText')) + metadata['author_id'] = multi_deep_get(header, + ['ownerText', 'runs', 0, 'navigationEndpoint', 'browseEndpoint', 'browseId'], + ['ownerEndpoint', 'browseEndpoint', 'browseId']) + if metadata['author_id']: + metadata['author_url'] = 'https://www.youtube.com/channel/' + metadata['author_id'] + else: + metadata['author_url'] = None + metadata['view_count'] = extract_int(header.get('viewCountText')) + metadata['like_count'] = extract_int(header.get('likesCountWithoutLikeText')) + for stat in header.get('stats', ()): + text = extract_str(stat) + if 'videos' in text: + conservative_update(metadata, 'video_count', extract_int(text)) + elif 'views' in text: + conservative_update(metadata, 'view_count', extract_int(text)) + elif 'updated' in text: + metadata['time_published'] = extract_date(text) + + return metadata + +def extract_playlist_info(polymer_json): + response, err = extract_response(polymer_json) + if err: + return {'error': err} + info = {'error': None} + first_page = 'continuationContents' not in response + video_list, _ = extract_items(response) + + info['items'] = [extract_item_info(renderer) for renderer in video_list] + + if first_page: + info['metadata'] = extract_playlist_metadata(polymer_json) + + return info + +def ctoken_metadata(ctoken): + result = dict() + params = proto.parse(proto.b64_to_bytes(ctoken)) + result['video_id'] = proto.parse(params[2])[2].decode('ascii') + + offset_information = proto.parse(params[6]) + result['offset'] = offset_information.get(5, 0) + + result['is_replies'] = False + if (3 in offset_information) and (2 in proto.parse(offset_information[3])): + result['is_replies'] = True + result['sort'] = None + else: + try: + result['sort'] = proto.parse(offset_information[4])[6] + except KeyError: + result['sort'] = 0 + return result + +def extract_comments_info(polymer_json): + response, err = extract_response(polymer_json) + if err: + return {'error': err} + info = {'error': None} + + url = multi_deep_get(polymer_json, [1, 'url'], ['url']) + if url: + ctoken = urllib.parse.parse_qs(url[url.find('?')+1:])['ctoken'][0] + metadata = ctoken_metadata(ctoken) + else: + metadata = {} + info['video_id'] = metadata.get('video_id') + info['offset'] = metadata.get('offset') + info['is_replies'] = metadata.get('is_replies') + info['sort'] = metadata.get('sort') + info['video_title'] = None + + comments, ctoken = extract_items(response) + info['comments'] = [] + info['ctoken'] = ctoken + for comment in comments: + comment_info = {} + + if 'commentThreadRenderer' in comment: # top level comments + conservative_update(info, 'is_replies', False) + comment_thread = comment['commentThreadRenderer'] + info['video_title'] = extract_str(comment_thread.get('commentTargetTitle')) + if 'replies' not in comment_thread: + comment_info['reply_count'] = 0 + else: + comment_info['reply_count'] = extract_int(deep_get(comment_thread, + 'replies', 'commentRepliesRenderer', 'moreText' + ), default=1) # With 1 reply, the text reads "View reply" + comment_renderer = deep_get(comment_thread, 'comment', 'commentRenderer', default={}) + elif 'commentRenderer' in comment: # replies + comment_info['reply_count'] = 0 # replyCount, below, not present for replies even if the reply has further replies to it + conservative_update(info, 'is_replies', True) + comment_renderer = comment['commentRenderer'] + else: + comment_renderer = {} + + # These 3 are sometimes absent, likely because the channel was deleted + comment_info['author'] = extract_str(comment_renderer.get('authorText')) + comment_info['author_url'] = deep_get(comment_renderer, + 'authorEndpoint', 'commandMetadata', 'webCommandMetadata', 'url') + comment_info['author_id'] = deep_get(comment_renderer, + 'authorEndpoint', 'browseEndpoint', 'browseId') + + comment_info['author_avatar'] = deep_get(comment_renderer, + 'authorThumbnail', 'thumbnails', 0, 'url') + comment_info['id'] = comment_renderer.get('commentId') + comment_info['text'] = extract_formatted_text(comment_renderer.get('contentText')) + comment_info['time_published'] = extract_str(comment_renderer.get('publishedTimeText')) + comment_info['like_count'] = comment_renderer.get('likeCount') + liberal_update(comment_info, 'reply_count', comment_renderer.get('replyCount')) + + info['comments'].append(comment_info) + + return info |