Fix "invalid escape sequences" error on Python 3.6
[youtube-dl] / youtube_dl / extractor / channel9.py
index ae70ea22967a8d880ba15fa1bb64f32904139094..865dbcaba5016eb957c41bac43966e2a75044f0b 100644 (file)
@@ -1,9 +1,14 @@
-# encoding: utf-8
+from __future__ import unicode_literals
 
 import re
 
 from .common import InfoExtractor
-from ..utils import ExtractorError
+from ..utils import (
+    ExtractorError,
+    parse_filesize,
+    qualities,
+)
+
 
 class Channel9IE(InfoExtractor):
     '''
@@ -11,61 +16,71 @@ class Channel9IE(InfoExtractor):
 
     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.    
+    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' ],
-            },
+    IE_DESC = 'Channel 9'
+    IE_NAME = 'channel9'
+    _VALID_URL = r'https?://(?:www\.)?channel9\.msdn\.com/(?P<contentpath>.+?)(?P<rss>/RSS)?/?(?:[?#&]|$)'
+
+    _TESTS = [{
+        'url': 'http://channel9.msdn.com/Events/TechEd/Australia/2013/KOS002',
+        'md5': 'bbd75296ba47916b754e73c3a4bbdf10',
+        'info_dict': {
+            'id': 'Events/TechEd/Australia/2013/KOS002',
+            'ext': 'mp4',
+            'title': 'Developer Kick-Off Session: Stuff We Love',
+            'description': 'md5:c08d72240b7c87fcecafe2692f80e35f',
+            'duration': 4576,
+            'thumbnail': r're:http://.*\.jpg',
+            'session_code': 'KOS002',
+            'session_day': 'Day 1',
+            'session_room': 'Arena 1A',
+            'session_speakers': ['Ed Blankenship', 'Andrew Coates', 'Brady Gaster', 'Patrick Klug',
+                                 'Mads Kristensen'],
         },
-        {
-            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:d1e6ecaafa7fb52a2cacdf9599829f5b',
-                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' ],
-            },
-        }
-    ]
+    }, {
+        'url': 'http://channel9.msdn.com/posts/Self-service-BI-with-Power-BI-nuclear-testing',
+        'md5': 'b43ee4529d111bc37ba7ee4f34813e68',
+        'info_dict': {
+            'id': 'posts/Self-service-BI-with-Power-BI-nuclear-testing',
+            'ext': 'mp4',
+            'title': 'Self-service BI with Power BI - nuclear testing',
+            'description': 'md5:d1e6ecaafa7fb52a2cacdf9599829f5b',
+            'duration': 1540,
+            'thumbnail': r're:http://.*\.jpg',
+            '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': 'Events/CPP/CppCon-2015/Ranges-for-the-Standard-Library',
+            'ext': 'mp4',
+            'title': 'Ranges for the Standard Library',
+            'description': 'md5:2e6b4917677af3728c5f6d63784c4c5d',
+            'duration': 5646,
+            'thumbnail': r're:http://.*\.jpg',
+        },
+        '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_count': 2,
+    }, {
+        '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'
 
-    # 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))
-
     def _formats_from_html(self, html):
         FORMAT_REGEX = r'''
             (?x)
@@ -75,22 +90,30 @@ class Channel9IE(InfoExtractor):
             <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']))
+        quality = qualities((
+            'MP3', 'MP4',
+            'Low Quality WMV', 'Low Quality MP4',
+            'Mid Quality WMV', 'Mid Quality MP4',
+            'High Quality WMV', 'High Quality MP4'))
+        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_approx': parse_filesize(x.group('filesize')),
+            'quality': quality(x.group('quality')),
+            'vcodec': 'none' if x.group('note') == 'Audio only' else None,
+        } for x in list(re.finditer(FORMAT_REGEX, html))]
+
+        self._sort_formats(formats)
+
         return formats
 
     def _extract_title(self, html):
-        title = self._html_search_meta(u'title', html, u'title')
-        if title is None:           
+        title = self._html_search_meta('title', html, 'title')
+        if title is None:
             title = self._og_search_title(html)
-            TITLE_SUFFIX = u' (Channel 9)'
+            TITLE_SUFFIX = ' (Channel 9)'
             if title is not None and title.endswith(TITLE_SUFFIX):
                 title = title[:-len(TITLE_SUFFIX)]
         return title
@@ -106,10 +129,10 @@ class Channel9IE(InfoExtractor):
         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')
+        return self._html_search_meta('description', html, '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)
+        m = re.search(r'"length": *"(?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):
@@ -151,7 +174,7 @@ class Channel9IE(InfoExtractor):
 
     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
+        return m.group('day').strip() 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)
@@ -161,14 +184,14 @@ class Channel9IE(InfoExtractor):
         return re.findall(r'<a href="/Events/Speakers/[^"]+">([^<]+)</a>', html)
 
     def _extract_content(self, html, content_path):
-        # Look for downloadable content        
+        # 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)
+            self._downloader.report_warning('None of recording, slides or zip are available for %s' % content_path)
             return
 
         # Extract meta
@@ -181,32 +204,33 @@ class Channel9IE(InfoExtractor):
         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,
-                }
+        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 })
+            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_ })
+            d.update({'title': title + '-Zip', 'url': zip_})
             result.append(d)
 
         if len(formats) > 0:
             d = common.copy()
-            d.update({ 'title': title, 'formats': formats })
+            d.update({'title': title, 'formats': formats})
             result.append(d)
 
         return result
@@ -216,52 +240,61 @@ class Channel9IE(InfoExtractor):
         if contents is None:
             return contents
 
-        authors = self._extract_authors(html)
-
-        for content in contents:
-            content['authors'] = authors
+        if len(contents) > 1:
+            raise ExtractorError('Got more than one entry')
+        result = contents[0]
+        result['authors'] = self._extract_authors(html)
 
-        return contents
+        return result
 
     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),
-                        }
+        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
+        return self.playlist_result(contents)
 
-    def _extract_list(self, content_path):
-        rss = self._download_xml(self._RSS_URL % content_path, content_path, u'Downloading 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, content_path, title_text)
+        return self.playlist_result(entries, video_id, 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
+        rss = mobj.group('rss')
+
+        if rss:
+            return self._extract_list(content_path, url)
+
+        webpage = self._download_webpage(
+            url, content_path, 'Downloading web page')
+
+        page_type = self._search_regex(
+            r'<meta[^>]+name=(["\'])WT\.entryid\1[^>]+content=(["\'])(?P<pagetype>[^:]+).+?\2',
+            webpage, 'page type', default=None, group='pagetype')
+        if page_type:
+            if page_type == 'Entry':      # 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)
+            elif page_type == 'Event':
+                return self._extract_list(content_path)
+            else:
+                raise ExtractorError('Unexpected WT.entryid %s' % page_type, expected=True)
+        else:  # Assuming list
             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)
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