-# encoding: utf-8
+from __future__ import unicode_literals
import re
from .common import InfoExtractor
from ..utils import (
- format_bytes,
+ clean_html,
ExtractorError,
+ int_or_none,
+ parse_iso8601,
+ qualities,
+ unescapeHTML,
)
-class Channel9IE(InfoExtractor):
- '''
- Common extractor for channel9.msdn.com.
-
- The type of provided URL (video or playlist) is determined according to
- meta Search.PageType from web page HTML rather than URL itself, as it is
- not always possible to do.
- '''
- IE_DESC = u'Channel 9'
- IE_NAME = u'channel9'
- _VALID_URL = r'^https?://(?:www\.)?channel9\.msdn\.com/(?P<contentpath>.+)/?'
- _TESTS = [
- {
- u'url': u'http://channel9.msdn.com/Events/TechEd/Australia/2013/KOS002',
- u'file': u'Events_TechEd_Australia_2013_KOS002.mp4',
- u'md5': u'bbd75296ba47916b754e73c3a4bbdf10',
- u'info_dict': {
- u'title': u'Developer Kick-Off Session: Stuff We Love',
- u'description': u'md5:c08d72240b7c87fcecafe2692f80e35f',
- u'duration': 4576,
- u'thumbnail': u'http://media.ch9.ms/ch9/9d51/03902f2d-fc97-4d3c-b195-0bfe15a19d51/KOS002_220.jpg',
- u'session_code': u'KOS002',
- u'session_day': u'Day 1',
- u'session_room': u'Arena 1A',
- u'session_speakers': [ u'Ed Blankenship', u'Andrew Coates', u'Brady Gaster', u'Patrick Klug', u'Mads Kristensen' ],
- },
+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': 'count:5',
+ },
+ }, {
+ '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'],
},
- {
- u'url': u'http://channel9.msdn.com/posts/Self-service-BI-with-Power-BI-nuclear-testing',
- u'file': u'posts_Self-service-BI-with-Power-BI-nuclear-testing.mp4',
- u'md5': u'b43ee4529d111bc37ba7ee4f34813e68',
- u'info_dict': {
- u'title': u'Self-service BI with Power BI - nuclear testing',
- u'description': u'md5:a6d5cfd9ee46d1851cf6e40ea61cfc10',
- u'duration': 1540,
- u'thumbnail': u'http://media.ch9.ms/ch9/87e1/0300391f-a455-4c72-bec3-4422f19287e1/selfservicenuk_512.jpg',
- u'authors': [ u'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/Events/DEVintersection/DEVintersection-2016/RSS',
+ 'info_dict': {
+ 'id': 'Events/DEVintersection/DEVintersection-2016',
+ 'title': 'DEVintersection 2016 Orlando Sessions',
+ },
+ 'playlist_mincount': 14,
+ }, {
+ 'url': 'https://channel9.msdn.com/Niners/Splendid22/Queue/76acff796e8f411184b008028e0d492b/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'
- _EXTRACT_ENTRY_ITEMS_FROM_RSS = False
-
- # Sorted by quality
- _known_formats = ['MP3', 'MP4', 'Mid Quality WMV', 'Mid Quality MP4', 'High Quality WMV', 'High Quality MP4']
- def _restore_bytes(self, formatted_size):
- if not formatted_size:
- return 0
- m = re.match(r'^(?P<size>\d+(?:\.\d+)?)\s+(?P<units>[a-zA-Z]+)', formatted_size)
- if not m:
- return 0
- units = m.group('units')
- try:
- exponent = [u'B', u'KB', u'MB', u'GB', u'TB', u'PB', u'EB', u'ZB', u'YB'].index(units.upper())
- except ValueError:
- return 0
- size = float(m.group('size'))
- return int(size * (1024 ** exponent))
+ @staticmethod
+ def _extract_urls(webpage):
+ return re.findall(
+ r'<iframe[^>]+src=["\'](https?://channel9\.msdn\.com/(?:[^/]+/)+)player\b',
+ webpage)
+
+ 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 _formats_from_html(self, html):
- FORMAT_REGEX = r'''
- (?x)
- <a\s+href="(?P<url>[^"]+)">(?P<quality>[^<]+)</a>\s*
- <span\s+class="usage">\((?P<note>[^\)]+)\)</span>\s*
- (?:<div\s+class="popup\s+rounded">\s*
- <h3>File\s+size</h3>\s*(?P<filesize>.*?)\s*
- </div>)? # File size part may be missing
- '''
- # Extract known formats
- formats = [{'url': x.group('url'),
- 'format_id': x.group('quality'),
- 'format_note': x.group('note'),
- 'format': '%s (%s)' % (x.group('quality'), x.group('note')),
- 'filesize': self._restore_bytes(x.group('filesize')), # File size is approximate
- } for x in list(re.finditer(FORMAT_REGEX, html)) if x.group('quality') in self._known_formats]
- # Sort according to known formats list
- formats.sort(key=lambda fmt: self._known_formats.index(fmt['format_id']))
- return formats
-
- def _formats_from_rss_item(self, item):
+ 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'] + '?$select=Captions,CommentCount,MediaLengthInSeconds,PublishedDate,Rating,RatingCount,Title,VideoMP4High,VideoMP4Low,VideoMP4Medium,VideoPlayerPreviewImage,VideoWMV,VideoWMVHQ,Views,'
+ if is_session:
+ content_url += 'Code,Description,Room,Slides,Speakers,ZipFile&$expand=Speakers'
+ else:
+ content_url += 'Authors,Body&$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))
- def process_formats(elem):
formats = []
- for media_content in elem.findall('./{http://search.yahoo.com/mrss/}content'):
- url = media_content.attrib['url']
- # Ignore unrelated media
- if url.endswith('.ism/manifest'):
+ 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
- format_note = media_content.attrib['type']
- filesize = int(media_content.attrib['fileSize'])
- formats.append({'url': url,
- 'format_note': format_note,
- 'format': '%s %s' % (format_note, format_bytes(filesize)),
- 'filesize': filesize,
- })
- return formats
-
- formats = []
-
- for media_group in item.findall('./{http://search.yahoo.com/mrss/}group'):
- formats.extend(process_formats(media_group))
-
- # Sometimes there are no media:groups in item, but there is media:content
- # right in item (usually when there is the only media source)
- formats.extend(process_formats(item))
-
- # Sort by file size
- formats.sort(key=lambda fmt: fmt['filesize'])
- return formats
-
- def _extract_title(self, html):
- title = self._html_search_meta(u'title', html, u'title')
- if title is None:
- title = self._og_search_title(html)
- TITLE_SUFFIX = u' (Channel 9)'
- if title is not None and title.endswith(TITLE_SUFFIX):
- title = title[:-len(TITLE_SUFFIX)]
- return title
-
- def _extract_description(self, html):
- DESCRIPTION_REGEX = r'''(?sx)
- <div\s+class="entry-content">\s*
- <div\s+id="entry-body">\s*
- (?P<description>.+?)\s*
- </div>\s*
- </div>
- '''
- m = re.search(DESCRIPTION_REGEX, html)
- if m is not None:
- return m.group('description')
- return self._html_search_meta(u'description', html, u'description')
-
- def _extract_duration(self, html):
- m = re.search(r'data-video_duration="(?P<hours>\d{2}):(?P<minutes>\d{2}):(?P<seconds>\d{2})"', html)
- return ((int(m.group('hours')) * 60 * 60) + (int(m.group('minutes')) * 60) + int(m.group('seconds'))) if m else None
-
- def _extract_slides(self, html):
- m = re.search(r'<a href="(?P<slidesurl>[^"]+)" class="slides">Slides</a>', html)
- return m.group('slidesurl') if m is not None else None
-
- def _extract_zip(self, html):
- m = re.search(r'<a href="(?P<zipurl>[^"]+)" class="zip">Zip</a>', html)
- return m.group('zipurl') if m is not None else None
-
- def _extract_avg_rating(self, html):
- m = re.search(r'<p class="avg-rating">Avg Rating: <span>(?P<avgrating>[^<]+)</span></p>', html)
- return float(m.group('avgrating')) if m is not None else 0
-
- def _extract_rating_count(self, html):
- m = re.search(r'<div class="rating-count">\((?P<ratingcount>[^<]+)\)</div>', html)
- return int(self._fix_count(m.group('ratingcount'))) if m is not None else 0
-
- def _extract_view_count(self, html):
- m = re.search(r'<li class="views">\s*<span class="count">(?P<viewcount>[^<]+)</span> Views\s*</li>', html)
- return int(self._fix_count(m.group('viewcount'))) if m is not None else 0
-
- def _extract_comment_count(self, html):
- m = re.search(r'<li class="comments">\s*<a href="#comments">\s*<span class="count">(?P<commentcount>[^<]+)</span> Comments\s*</a>\s*</li>', html)
- return int(self._fix_count(m.group('commentcount'))) if m is not None else 0
-
- def _fix_count(self, count):
- return int(str(count).replace(',', '')) if count is not None else None
-
- def _extract_authors(self, html):
- m = re.search(r'(?s)<li class="author">(.*?)</li>', html)
- if m is None:
- return None
- return re.findall(r'<a href="/Niners/[^"]+">([^<]+)</a>', m.group(1))
-
- def _extract_session_code(self, html):
- m = re.search(r'<li class="code">\s*(?P<code>.+?)\s*</li>', html)
- return m.group('code') if m is not None else None
-
- def _extract_session_day(self, html):
- m = re.search(r'<li class="day">\s*<a href="/Events/[^"]+">(?P<day>[^<]+)</a>\s*</li>', html)
- return m.group('day') if m is not None else None
-
- def _extract_session_room(self, html):
- m = re.search(r'<li class="room">\s*(?P<room>.+?)\s*</li>', html)
- return m.group('room') if m is not None else None
-
- def _extract_session_speakers(self, html):
- return re.findall(r'<a href="/Events/Speakers/[^"]+">([^<]+)</a>', html)
-
- def _extract_content(self, html, content_path):
- # Look for downloadable content
- formats = self._formats_from_html(html)
- slides = self._extract_slides(html)
- zip_ = self._extract_zip(html)
-
- # Nothing to download
- if len(formats) == 0 and slides is None and zip_ is None:
- self._downloader.report_warning(u'None of recording, slides or zip are available for %s' % content_path)
- return
-
- # Extract meta
- title = self._extract_title(html)
- description = self._extract_description(html)
- thumbnail = self._og_search_thumbnail(html)
- duration = self._extract_duration(html)
- avg_rating = self._extract_avg_rating(html)
- rating_count = self._extract_rating_count(html)
- view_count = self._extract_view_count(html)
- comment_count = self._extract_comment_count(html)
-
- common = {'_type': 'video',
- 'id': content_path,
- 'description': description,
- 'thumbnail': thumbnail,
- 'duration': duration,
- 'avg_rating': avg_rating,
- 'rating_count': rating_count,
- 'view_count': view_count,
- 'comment_count': comment_count,
- }
-
- result = []
-
- if slides is not None:
- d = common.copy()
- d.update({ 'title': title + '-Slides', 'url': slides })
- result.append(d)
-
- if zip_ is not None:
- d = common.copy()
- d.update({ 'title': title + '-Zip', 'url': zip_ })
- result.append(d)
-
- if len(formats) > 0:
- d = common.copy()
- d.update({ 'title': title, 'formats': formats })
- result.append(d)
-
- return result
-
- def _extract_entry_item(self, html, content_path):
- contents = self._extract_content(html, content_path)
- if contents is None:
- return contents
-
- authors = self._extract_authors(html)
-
- for content in contents:
- content['authors'] = authors
-
- return contents
-
- def _extract_session(self, html, content_path):
- contents = self._extract_content(html, content_path)
- if contents is None:
- return contents
-
- session_meta = {'session_code': self._extract_session_code(html),
- 'session_day': self._extract_session_day(html),
- 'session_room': self._extract_session_room(html),
- 'session_speakers': self._extract_session_speakers(html),
- }
-
- for content in contents:
- content.update(session_meta)
-
- return contents
-
- def _extract_content_rss(self, rss):
- '''
- Extracts links to entry items right out of RSS feed.
- This approach is faster than extracting from web pages
- one by one, but suffers from some problems.
- Pros:
- - no need to download additional pages
- - provides more media links
- - accurate file size
- Cons:
- - fewer meta data provided
- - links to media files have no appropriate data that may be used as format_id
- - RSS does not contain links to presentation materials (slides, zip)
- '''
- entries = []
- for item in rss.findall('./channel/item'):
- url = item.find('./link').text
- video_id = url.split('/')[-1]
- formats = self._formats_from_rss_item(item)
-
- if len(formats) == 0:
- self._downloader.report_warning(u'The recording for session %s is not yet available' % video_id)
- continue
-
- title = item.find('./title').text
- description = item.find('./description').text
-
- thumbnail = item.find('./{http://search.yahoo.com/mrss/}thumbnail').text
-
- duration_e = item.find('./{http://www.itunes.com/dtds/podcast-1.0.dtd}duration')
- duration = duration_e.text if duration_e is not None else 0
-
- speakers_e = item.find('./{http://purl.org/dc/elements/1.1/}creator')
- speakers = speakers_e.text.split(', ') if speakers_e is not None and speakers_e.text else []
-
- entries.append({'_type': 'video',
- 'id': video_id,
- 'formats': formats,
- 'title': title,
- 'description': description,
- 'thumbnail': thumbnail,
- 'duration': duration,
- 'session_speakers': speakers,
- })
- return entries
-
- def _extract_list(self, content_path):
- rss = self._download_xml(self._RSS_URL % content_path, content_path, u'Downloading RSS')
- if self._EXTRACT_ENTRY_ITEMS_FROM_RSS:
- return self._extract_content_rss(rss)
+ 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('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:
- 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, content_path, title_text)
-
- def _real_extract(self, url):
- mobj = re.match(self._VALID_URL, url)
- content_path = mobj.group('contentpath')
-
- webpage = self._download_webpage(url, content_path, u'Downloading web page')
-
- page_type_m = re.search(r'<meta name="Search.PageType" content="(?P<pagetype>[^"]+)"/>', webpage)
- if page_type_m is None:
- raise ExtractorError(u'Search.PageType not found, don\'t know how to process this page', expected=True)
-
- page_type = page_type_m.group('pagetype')
- if page_type == 'List': # List page, may contain list of 'item'-like objects
return self._extract_list(content_path)
- elif page_type == 'Entry.Item': # Any 'item'-like page, may contain downloadable content
- return self._extract_entry_item(webpage, content_path)
- elif page_type == 'Session': # Event session page, may contain downloadable content
- return self._extract_session(webpage, content_path)
- else:
- raise ExtractorError(u'Unexpected Search.PageType %s' % page_type, expected=True)
\ No newline at end of file
projects / youtube-dl / blobdiff