channel9.py (10284B)
1 from __future__ import unicode_literals 2 3 import re 4 5 from .common import InfoExtractor 6 from ..utils import ( 7 clean_html, 8 ExtractorError, 9 int_or_none, 10 parse_iso8601, 11 qualities, 12 unescapeHTML, 13 ) 14 15 16 class Channel9IE(InfoExtractor): 17 IE_DESC = 'Channel 9' 18 IE_NAME = 'channel9' 19 _VALID_URL = r'https?://(?:www\.)?(?:channel9\.msdn\.com|s\.ch9\.ms)/(?P<contentpath>.+?)(?P<rss>/RSS)?/?(?:[?#&]|$)' 20 21 _TESTS = [{ 22 'url': 'http://channel9.msdn.com/Events/TechEd/Australia/2013/KOS002', 23 'md5': '32083d4eaf1946db6d454313f44510ca', 24 'info_dict': { 25 'id': '6c413323-383a-49dc-88f9-a22800cab024', 26 'ext': 'wmv', 27 'title': 'Developer Kick-Off Session: Stuff We Love', 28 'description': 'md5:b80bf9355a503c193aff7ec6cd5a7731', 29 'duration': 4576, 30 'thumbnail': r're:https?://.*\.jpg', 31 'timestamp': 1377717420, 32 'upload_date': '20130828', 33 'session_code': 'KOS002', 34 'session_room': 'Arena 1A', 35 'session_speakers': 'count:5', 36 }, 37 }, { 38 'url': 'http://channel9.msdn.com/posts/Self-service-BI-with-Power-BI-nuclear-testing', 39 'md5': 'dcf983ee6acd2088e7188c3cf79b46bc', 40 'info_dict': { 41 'id': 'fe8e435f-bb93-4e01-8e97-a28c01887024', 42 'ext': 'wmv', 43 'title': 'Self-service BI with Power BI - nuclear testing', 44 'description': 'md5:2d17fec927fc91e9e17783b3ecc88f54', 45 'duration': 1540, 46 'thumbnail': r're:https?://.*\.jpg', 47 'timestamp': 1386381991, 48 'upload_date': '20131207', 49 'authors': ['Mike Wilmot'], 50 }, 51 }, { 52 # low quality mp4 is best 53 'url': 'https://channel9.msdn.com/Events/CPP/CppCon-2015/Ranges-for-the-Standard-Library', 54 'info_dict': { 55 'id': '33ad69d2-6a4e-4172-83a1-a523013dec76', 56 'ext': 'mp4', 57 'title': 'Ranges for the Standard Library', 58 'description': 'md5:9895e0a9fd80822d2f01c454b8f4a372', 59 'duration': 5646, 60 'thumbnail': r're:https?://.*\.jpg', 61 'upload_date': '20150930', 62 'timestamp': 1443640735, 63 }, 64 'params': { 65 'skip_download': True, 66 }, 67 }, { 68 'url': 'https://channel9.msdn.com/Events/DEVintersection/DEVintersection-2016/RSS', 69 'info_dict': { 70 'id': 'Events/DEVintersection/DEVintersection-2016', 71 'title': 'DEVintersection 2016 Orlando Sessions', 72 }, 73 'playlist_mincount': 14, 74 }, { 75 'url': 'https://channel9.msdn.com/Niners/Splendid22/Queue/76acff796e8f411184b008028e0d492b/RSS', 76 'only_matching': True, 77 }, { 78 'url': 'https://channel9.msdn.com/Events/Speakers/scott-hanselman/RSS?UrlSafeName=scott-hanselman', 79 'only_matching': True, 80 }] 81 82 _RSS_URL = 'http://channel9.msdn.com/%s/RSS' 83 84 @staticmethod 85 def _extract_urls(webpage): 86 return re.findall( 87 r'<iframe[^>]+src=["\'](https?://channel9\.msdn\.com/(?:[^/]+/)+)player\b', 88 webpage) 89 90 def _extract_list(self, video_id, rss_url=None): 91 if not rss_url: 92 rss_url = self._RSS_URL % video_id 93 rss = self._download_xml(rss_url, video_id, 'Downloading RSS') 94 entries = [self.url_result(session_url.text, 'Channel9') 95 for session_url in rss.findall('./channel/item/link')] 96 title_text = rss.find('./channel/title').text 97 return self.playlist_result(entries, video_id, title_text) 98 99 def _real_extract(self, url): 100 content_path, rss = re.match(self._VALID_URL, url).groups() 101 102 if rss: 103 return self._extract_list(content_path, url) 104 105 webpage = self._download_webpage( 106 url, content_path, 'Downloading web page') 107 108 episode_data = self._search_regex( 109 r"data-episode='([^']+)'", webpage, 'episode data', default=None) 110 if episode_data: 111 episode_data = self._parse_json(unescapeHTML( 112 episode_data), content_path) 113 content_id = episode_data['contentId'] 114 is_session = '/Sessions(' in episode_data['api'] 115 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,' 116 if is_session: 117 content_url += 'Code,Description,Room,Slides,Speakers,ZipFile&$expand=Speakers' 118 else: 119 content_url += 'Authors,Body&$expand=Authors' 120 content_data = self._download_json(content_url, content_id) 121 title = content_data['Title'] 122 123 QUALITIES = ( 124 'mp3', 125 'wmv', 'mp4', 126 'wmv-low', 'mp4-low', 127 'wmv-mid', 'mp4-mid', 128 'wmv-high', 'mp4-high', 129 ) 130 131 quality_key = qualities(QUALITIES) 132 133 def quality(quality_id, format_url): 134 return (len(QUALITIES) if '_Source.' in format_url 135 else quality_key(quality_id)) 136 137 formats = [] 138 urls = set() 139 140 SITE_QUALITIES = { 141 'MP3': 'mp3', 142 'MP4': 'mp4', 143 'Low Quality WMV': 'wmv-low', 144 'Low Quality MP4': 'mp4-low', 145 'Mid Quality WMV': 'wmv-mid', 146 'Mid Quality MP4': 'mp4-mid', 147 'High Quality WMV': 'wmv-high', 148 'High Quality MP4': 'mp4-high', 149 } 150 151 formats_select = self._search_regex( 152 r'(?s)<select[^>]+name=["\']format[^>]+>(.+?)</select', webpage, 153 'formats select', default=None) 154 if formats_select: 155 for mobj in re.finditer( 156 r'<option\b[^>]+\bvalue=(["\'])(?P<url>(?:(?!\1).)+)\1[^>]*>\s*(?P<format>[^<]+?)\s*<', 157 formats_select): 158 format_url = mobj.group('url') 159 if format_url in urls: 160 continue 161 urls.add(format_url) 162 format_id = mobj.group('format') 163 quality_id = SITE_QUALITIES.get(format_id, format_id) 164 formats.append({ 165 'url': format_url, 166 'format_id': quality_id, 167 'quality': quality(quality_id, format_url), 168 'vcodec': 'none' if quality_id == 'mp3' else None, 169 }) 170 171 API_QUALITIES = { 172 'VideoMP4Low': 'mp4-low', 173 'VideoWMV': 'wmv-mid', 174 'VideoMP4Medium': 'mp4-mid', 175 'VideoMP4High': 'mp4-high', 176 'VideoWMVHQ': 'wmv-hq', 177 } 178 179 for format_id, q in API_QUALITIES.items(): 180 q_url = content_data.get(format_id) 181 if not q_url or q_url in urls: 182 continue 183 urls.add(q_url) 184 formats.append({ 185 'url': q_url, 186 'format_id': q, 187 'quality': quality(q, q_url), 188 }) 189 190 self._sort_formats(formats) 191 192 slides = content_data.get('Slides') 193 zip_file = content_data.get('ZipFile') 194 195 if not formats and not slides and not zip_file: 196 raise ExtractorError( 197 'None of recording, slides or zip are available for %s' % content_path) 198 199 subtitles = {} 200 for caption in content_data.get('Captions', []): 201 caption_url = caption.get('Url') 202 if not caption_url: 203 continue 204 subtitles.setdefault(caption.get('Language', 'en'), []).append({ 205 'url': caption_url, 206 'ext': 'vtt', 207 }) 208 209 common = { 210 'id': content_id, 211 'title': title, 212 'description': clean_html(content_data.get('Description') or content_data.get('Body')), 213 'thumbnail': content_data.get('VideoPlayerPreviewImage'), 214 'duration': int_or_none(content_data.get('MediaLengthInSeconds')), 215 'timestamp': parse_iso8601(content_data.get('PublishedDate')), 216 'avg_rating': int_or_none(content_data.get('Rating')), 217 'rating_count': int_or_none(content_data.get('RatingCount')), 218 'view_count': int_or_none(content_data.get('Views')), 219 'comment_count': int_or_none(content_data.get('CommentCount')), 220 'subtitles': subtitles, 221 } 222 if is_session: 223 speakers = [] 224 for s in content_data.get('Speakers', []): 225 speaker_name = s.get('FullName') 226 if not speaker_name: 227 continue 228 speakers.append(speaker_name) 229 230 common.update({ 231 'session_code': content_data.get('Code'), 232 'session_room': content_data.get('Room'), 233 'session_speakers': speakers, 234 }) 235 else: 236 authors = [] 237 for a in content_data.get('Authors', []): 238 author_name = a.get('DisplayName') 239 if not author_name: 240 continue 241 authors.append(author_name) 242 common['authors'] = authors 243 244 contents = [] 245 246 if slides: 247 d = common.copy() 248 d.update({'title': title + '-Slides', 'url': slides}) 249 contents.append(d) 250 251 if zip_file: 252 d = common.copy() 253 d.update({'title': title + '-Zip', 'url': zip_file}) 254 contents.append(d) 255 256 if formats: 257 d = common.copy() 258 d.update({'title': title, 'formats': formats}) 259 contents.append(d) 260 return self.playlist_result(contents) 261 else: 262 return self._extract_list(content_path)