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- from __future__ import unicode_literals
-
- import re
-
- from .common import InfoExtractor
- from ..utils import (
- clean_html,
- ExtractorError,
- int_or_none,
- parse_iso8601,
- qualities,
- unescapeHTML,
- )
-
-
- class Channel9IE(InfoExtractor):
- IE_DESC = 'Channel 9'
- IE_NAME = 'channel9'
- _VALID_URL = r'https?://(?:www\.)?(?:channel9\.msdn\.com|s\.ch9\.ms)/(?P<contentpath>.+?)(?P<rss>/RSS)?/?(?:[?#&]|$)'
-
- _TESTS = [{
- 'url': 'http://channel9.msdn.com/Events/TechEd/Australia/2013/KOS002',
- 'md5': '32083d4eaf1946db6d454313f44510ca',
- 'info_dict': {
- 'id': '6c413323-383a-49dc-88f9-a22800cab024',
- 'ext': 'wmv',
- 'title': 'Developer Kick-Off Session: Stuff We Love',
- 'description': 'md5:b80bf9355a503c193aff7ec6cd5a7731',
- 'duration': 4576,
- 'thumbnail': r're:https?://.*\.jpg',
- 'timestamp': 1377717420,
- 'upload_date': '20130828',
- 'session_code': 'KOS002',
- 'session_room': 'Arena 1A',
- 'session_speakers': ['Andrew Coates', 'Brady Gaster', 'Mads Kristensen', 'Ed Blankenship', 'Patrick Klug'],
- },
- }, {
- 'url': 'http://channel9.msdn.com/posts/Self-service-BI-with-Power-BI-nuclear-testing',
- 'md5': 'dcf983ee6acd2088e7188c3cf79b46bc',
- 'info_dict': {
- 'id': 'fe8e435f-bb93-4e01-8e97-a28c01887024',
- 'ext': 'wmv',
- 'title': 'Self-service BI with Power BI - nuclear testing',
- 'description': 'md5:2d17fec927fc91e9e17783b3ecc88f54',
- 'duration': 1540,
- 'thumbnail': r're:https?://.*\.jpg',
- 'timestamp': 1386381991,
- 'upload_date': '20131207',
- 'authors': ['Mike Wilmot'],
- },
- }, {
- # low quality mp4 is best
- 'url': 'https://channel9.msdn.com/Events/CPP/CppCon-2015/Ranges-for-the-Standard-Library',
- 'info_dict': {
- 'id': '33ad69d2-6a4e-4172-83a1-a523013dec76',
- 'ext': 'mp4',
- 'title': 'Ranges for the Standard Library',
- 'description': 'md5:9895e0a9fd80822d2f01c454b8f4a372',
- 'duration': 5646,
- 'thumbnail': r're:https?://.*\.jpg',
- 'upload_date': '20150930',
- 'timestamp': 1443640735,
- },
- 'params': {
- 'skip_download': True,
- },
- }, {
- 'url': 'https://channel9.msdn.com/Niners/Splendid22/Queue/76acff796e8f411184b008028e0d492b/RSS',
- 'info_dict': {
- 'id': 'Niners/Splendid22/Queue/76acff796e8f411184b008028e0d492b',
- 'title': 'Channel 9',
- },
- 'playlist_mincount': 100,
- }, {
- 'url': 'https://channel9.msdn.com/Events/DEVintersection/DEVintersection-2016/RSS',
- 'only_matching': True,
- }, {
- 'url': 'https://channel9.msdn.com/Events/Speakers/scott-hanselman/RSS?UrlSafeName=scott-hanselman',
- 'only_matching': True,
- }]
-
- _RSS_URL = 'http://channel9.msdn.com/%s/RSS'
-
- def _extract_list(self, video_id, rss_url=None):
- if not rss_url:
- rss_url = self._RSS_URL % video_id
- rss = self._download_xml(rss_url, video_id, 'Downloading RSS')
- entries = [self.url_result(session_url.text, 'Channel9')
- for session_url in rss.findall('./channel/item/link')]
- title_text = rss.find('./channel/title').text
- return self.playlist_result(entries, video_id, title_text)
-
- def _real_extract(self, url):
- content_path, rss = re.match(self._VALID_URL, url).groups()
-
- if rss:
- return self._extract_list(content_path, url)
-
- webpage = self._download_webpage(
- url, content_path, 'Downloading web page')
-
- episode_data = self._search_regex(
- r"data-episode='([^']+)'", webpage, 'episode data', default=None)
- if episode_data:
- episode_data = self._parse_json(unescapeHTML(
- episode_data), content_path)
- content_id = episode_data['contentId']
- is_session = '/Sessions(' in episode_data['api']
- content_url = 'https://channel9.msdn.com/odata' + episode_data['api']
- if is_session:
- content_url += '?$expand=Speakers'
- else:
- content_url += '?$expand=Authors'
- content_data = self._download_json(content_url, content_id)
- title = content_data['Title']
-
- QUALITIES = (
- 'mp3',
- 'wmv', 'mp4',
- 'wmv-low', 'mp4-low',
- 'wmv-mid', 'mp4-mid',
- 'wmv-high', 'mp4-high',
- )
-
- quality_key = qualities(QUALITIES)
-
- def quality(quality_id, format_url):
- return (len(QUALITIES) if '_Source.' in format_url
- else quality_key(quality_id))
-
- formats = []
- urls = set()
-
- SITE_QUALITIES = {
- 'MP3': 'mp3',
- 'MP4': 'mp4',
- 'Low Quality WMV': 'wmv-low',
- 'Low Quality MP4': 'mp4-low',
- 'Mid Quality WMV': 'wmv-mid',
- 'Mid Quality MP4': 'mp4-mid',
- 'High Quality WMV': 'wmv-high',
- 'High Quality MP4': 'mp4-high',
- }
-
- formats_select = self._search_regex(
- r'(?s)<select[^>]+name=["\']format[^>]+>(.+?)</select', webpage,
- 'formats select', default=None)
- if formats_select:
- for mobj in re.finditer(
- r'<option\b[^>]+\bvalue=(["\'])(?P<url>(?:(?!\1).)+)\1[^>]*>\s*(?P<format>[^<]+?)\s*<',
- formats_select):
- format_url = mobj.group('url')
- if format_url in urls:
- continue
- urls.add(format_url)
- format_id = mobj.group('format')
- quality_id = SITE_QUALITIES.get(format_id, format_id)
- formats.append({
- 'url': format_url,
- 'format_id': quality_id,
- 'quality': quality(quality_id, format_url),
- 'vcodec': 'none' if quality_id == 'mp3' else None,
- })
-
- API_QUALITIES = {
- 'VideoMP4Low': 'mp4-low',
- 'VideoWMV': 'wmv-mid',
- 'VideoMP4Medium': 'mp4-mid',
- 'VideoMP4High': 'mp4-high',
- 'VideoWMVHQ': 'wmv-hq',
- }
-
- for format_id, q in API_QUALITIES.items():
- q_url = content_data.get(format_id)
- if not q_url or q_url in urls:
- continue
- urls.add(q_url)
- formats.append({
- 'url': q_url,
- 'format_id': q,
- 'quality': quality(q, q_url),
- })
-
- self._sort_formats(formats)
-
- slides = content_data.get('Slides')
- zip_file = content_data.get('ZipFile')
-
- if not formats and not slides and not zip_file:
- raise ExtractorError(
- 'None of recording, slides or zip are available for %s' % content_path)
-
- subtitles = {}
- for caption in content_data.get('Captions', []):
- caption_url = caption.get('Url')
- if not caption_url:
- continue
- subtitles.setdefault(caption.get('Language', 'en'), []).append({
- 'url': caption_url,
- 'ext': 'vtt',
- })
-
- common = {
- 'id': content_id,
- 'title': title,
- 'description': clean_html(content_data.get('Description') or content_data.get('Body')),
- 'thumbnail': content_data.get('Thumbnail') or content_data.get('VideoPlayerPreviewImage'),
- 'duration': int_or_none(content_data.get('MediaLengthInSeconds')),
- 'timestamp': parse_iso8601(content_data.get('PublishedDate')),
- 'avg_rating': int_or_none(content_data.get('Rating')),
- 'rating_count': int_or_none(content_data.get('RatingCount')),
- 'view_count': int_or_none(content_data.get('Views')),
- 'comment_count': int_or_none(content_data.get('CommentCount')),
- 'subtitles': subtitles,
- }
- if is_session:
- speakers = []
- for s in content_data.get('Speakers', []):
- speaker_name = s.get('FullName')
- if not speaker_name:
- continue
- speakers.append(speaker_name)
-
- common.update({
- 'session_code': content_data.get('Code'),
- 'session_room': content_data.get('Room'),
- 'session_speakers': speakers,
- })
- else:
- authors = []
- for a in content_data.get('Authors', []):
- author_name = a.get('DisplayName')
- if not author_name:
- continue
- authors.append(author_name)
- common['authors'] = authors
-
- contents = []
-
- if slides:
- d = common.copy()
- d.update({'title': title + '-Slides', 'url': slides})
- contents.append(d)
-
- if zip_file:
- d = common.copy()
- d.update({'title': title + '-Zip', 'url': zip_file})
- contents.append(d)
-
- if formats:
- d = common.copy()
- d.update({'title': title, 'formats': formats})
- contents.append(d)
- return self.playlist_result(contents)
- else:
- return self._extract_list(content_path)
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