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			415 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			415 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
import json
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import re
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import urllib.parse
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from .common import InfoExtractor
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from ..utils import (
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    ExtractorError,
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    float_or_none,
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    mimetype2ext,
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    smuggle_url,
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    str_or_none,
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    try_call,
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    try_get,
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    unsmuggle_url,
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    url_or_none,
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    urljoin,
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)
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from ..utils.traversal import traverse_obj
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_ID_RE = r'(?:[0-9a-f]{32,34}|[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12,14})'
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class MediasiteIE(InfoExtractor):
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    _VALID_URL = rf'(?xi)https?://[^/]+/Mediasite/(?:Play|Showcase/[^/#?]+/Presentation)/(?P<id>{_ID_RE})(?P<query>\?[^#]+|)'
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    _EMBED_REGEX = [rf'(?xi)<iframe\b[^>]+\bsrc=(["\'])(?P<url>(?:(?:https?:)?//[^/]+)?/Mediasite/Play/{_ID_RE}(?:\?.*?)?)\1']
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    _TESTS = [
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        {
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            'url': 'https://hitsmediaweb.h-its.org/mediasite/Play/2db6c271681e4f199af3c60d1f82869b1d',
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            'info_dict': {
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                'id': '2db6c271681e4f199af3c60d1f82869b1d',
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                'ext': 'mp4',
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                'title': 'Lecture: Tuesday, September 20, 2016 - Sir Andrew Wiles',
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                'description': 'Sir Andrew Wiles: “Equations in arithmetic”\\n\\nI will describe some of the interactions between modern number theory and the problem of solving equations in rational numbers or integers\\u0027.',
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                'timestamp': 1474268400.0,
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                'upload_date': '20160919',
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            },
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        },
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        {
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            'url': 'http://mediasite.uib.no/Mediasite/Play/90bb363295d945d6b548c867d01181361d?catalog=a452b7df-9ae1-46b7-a3ba-aceeb285f3eb',
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            'info_dict': {
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                'id': '90bb363295d945d6b548c867d01181361d',
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                'ext': 'mp4',
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                'upload_date': '20150429',
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                'title': '5) IT-forum 2015-Dag 1  - Dungbeetle -  How and why Rain created a tiny bug tracker for Unity',
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                'timestamp': 1430311380.0,
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            },
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        },
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        {
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            'url': 'https://collegerama.tudelft.nl/Mediasite/Play/585a43626e544bdd97aeb71a0ec907a01d',
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            'md5': '481fda1c11f67588c0d9d8fbdced4e39',
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            'info_dict': {
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                'id': '585a43626e544bdd97aeb71a0ec907a01d',
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                'ext': 'mp4',
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                'title': 'Een nieuwe wereld: waarden, bewustzijn en techniek van de mensheid 2.0.',
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                'description': '',
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                'thumbnail': r're:^https?://.*\.jpg(?:\?.*)?$',
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                'duration': 7713.088,
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                'timestamp': 1413309600,
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                'upload_date': '20141014',
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            },
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        },
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        {
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            'url': 'https://collegerama.tudelft.nl/Mediasite/Play/86a9ea9f53e149079fbdb4202b521ed21d?catalog=fd32fd35-6c99-466c-89d4-cd3c431bc8a4',
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            'md5': 'ef1fdded95bdf19b12c5999949419c92',
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            'info_dict': {
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                'id': '86a9ea9f53e149079fbdb4202b521ed21d',
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                'ext': 'wmv',
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                'title': '64ste Vakantiecursus: Afvalwater',
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                'description': 'md5:7fd774865cc69d972f542b157c328305',
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                'thumbnail': r're:^https?://.*\.jpg(?:\?.*?)?$',
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                'duration': 10853,
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                'timestamp': 1326446400,
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                'upload_date': '20120113',
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            },
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        },
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        {
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            'url': 'http://digitalops.sandia.gov/Mediasite/Play/24aace4429fc450fb5b38cdbf424a66e1d',
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            'md5': '9422edc9b9a60151727e4b6d8bef393d',
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            'info_dict': {
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                'id': '24aace4429fc450fb5b38cdbf424a66e1d',
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                'ext': 'mp4',
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                'title': 'Xyce Software Training - Section 1',
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                'description': r're:(?s)SAND Number: SAND 2013-7800.{200,}',
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                'upload_date': '20120409',
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                'timestamp': 1333983600,
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                'duration': 7794,
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            },
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        },
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        {
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            'url': 'https://collegerama.tudelft.nl/Mediasite/Showcase/livebroadcast/Presentation/ada7020854f743c49fbb45c9ec7dbb351d',
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            'only_matching': True,
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        },
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        {
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            'url': 'https://mediasite.ntnu.no/Mediasite/Showcase/default/Presentation/7d8b913259334b688986e970fae6fcb31d',
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            'only_matching': True,
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        },
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        {
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            # dashed id
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            'url': 'https://hitsmediaweb.h-its.org/mediasite/Play/2db6c271-681e-4f19-9af3-c60d1f82869b1d',
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            'only_matching': True,
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        },
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    ]
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    # look in Mediasite.Core.js (Mediasite.ContentStreamType[*])
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    _STREAM_TYPES = {
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        0: 'video1',  # the main video
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        2: 'slide',
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        3: 'presentation',
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        4: 'video2',  # screencast?
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        5: 'video3',
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    }
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    @classmethod
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    def _extract_embed_urls(cls, url, webpage):
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        for embed_url in super()._extract_embed_urls(url, webpage):
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            yield smuggle_url(embed_url, {'UrlReferrer': url})
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    def __extract_slides(self, *, stream_id, snum, stream, duration, images):
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        slide_base_url = stream['SlideBaseUrl']
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        fname_template = stream['SlideImageFileNameTemplate']
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        if fname_template != 'slide_{0:D4}.jpg':
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            self.report_warning('Unusual slide file name template; report a bug if slide downloading fails')
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        fname_template = re.sub(r'\{0:D([0-9]+)\}', r'{0:0\1}', fname_template)
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        fragments = []
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        for i, slide in enumerate(stream['Slides']):
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            if i == 0:
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                if slide['Time'] > 0:
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                    default_slide = images.get('DefaultSlide')
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                    if default_slide is None:
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                        default_slide = images.get('DefaultStreamImage')
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                    if default_slide is not None:
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                        default_slide = default_slide['ImageFilename']
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                    if default_slide is not None:
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                        fragments.append({
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                            'path': default_slide,
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                            'duration': slide['Time'] / 1000,
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                        })
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            next_time = try_call(
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                lambda: stream['Slides'][i + 1]['Time'],
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                lambda: duration,
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                lambda: slide['Time'],
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                expected_type=(int, float))
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            fragments.append({
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                'path': fname_template.format(slide.get('Number', i + 1)),
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                'duration': (next_time - slide['Time']) / 1000,
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            })
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        return {
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            'format_id': f'{stream_id}-{snum}.slides',
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            'ext': 'mhtml',
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            'url': slide_base_url,
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            'protocol': 'mhtml',
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            'acodec': 'none',
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            'vcodec': 'none',
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            'format_note': 'Slides',
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            'fragments': fragments,
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            'fragment_base_url': slide_base_url,
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        }
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    def _real_extract(self, url):
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        url, data = unsmuggle_url(url, {})
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        mobj = self._match_valid_url(url)
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        resource_id = mobj.group('id')
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        query = mobj.group('query')
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        webpage, urlh = self._download_webpage_handle(url, resource_id)  # XXX: add UrlReferrer?
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        redirect_url = urlh.url
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        # XXX: might have also extracted UrlReferrer and QueryString from the html
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        service_path = urllib.parse.urljoin(redirect_url, self._html_search_regex(
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            r'<div[^>]+\bid=["\']ServicePath[^>]+>(.+?)</div>', webpage, resource_id,
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            default='/Mediasite/PlayerService/PlayerService.svc/json'))
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        player_options = self._download_json(
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            f'{service_path}/GetPlayerOptions', resource_id,
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            headers={
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                'Content-type': 'application/json; charset=utf-8',
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                'X-Requested-With': 'XMLHttpRequest',
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            },
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            data=json.dumps({
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                'getPlayerOptionsRequest': {
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                    'ResourceId': resource_id,
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                    'QueryString': query,
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                    'UrlReferrer': data.get('UrlReferrer', ''),
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                    'UseScreenReader': False,
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                },
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            }).encode())['d']
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        presentation = player_options['Presentation']
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        title = presentation['Title']
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        if presentation is None:
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            raise ExtractorError(
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                'Mediasite says: {}'.format(player_options['PlayerPresentationStatusMessage']),
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                expected=True)
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        thumbnails = []
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        formats = []
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        for snum, stream in enumerate(presentation['Streams']):
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            stream_type = stream.get('StreamType')
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            if stream_type is None:
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                continue
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            video_urls = stream.get('VideoUrls')
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            if not isinstance(video_urls, list):
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                video_urls = []
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            stream_id = self._STREAM_TYPES.get(
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                stream_type, 'type%u' % stream_type)
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            stream_formats = []
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            for unum, video in enumerate(video_urls):
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                video_url = url_or_none(video.get('Location'))
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                if not video_url:
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                    continue
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                # XXX: if Stream.get('CanChangeScheme', False), switch scheme to HTTP/HTTPS
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                media_type = video.get('MediaType')
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                ext = mimetype2ext(video.get('MimeType'))
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                if media_type == 'SS':
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                    stream_formats.extend(self._extract_ism_formats(
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                        video_url, resource_id,
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                        ism_id=f'{stream_id}-{snum}.{unum}',
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                        fatal=False))
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                elif media_type == 'Dash':
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                    stream_formats.extend(self._extract_mpd_formats(
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                        video_url, resource_id,
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                        mpd_id=f'{stream_id}-{snum}.{unum}',
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                        fatal=False))
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                elif ext in ('m3u', 'm3u8'):
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                    stream_formats.extend(self._extract_m3u8_formats(
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                        video_url, resource_id,
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                        m3u8_id=f'{stream_id}-{snum}.{unum}',
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                        fatal=False))
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                else:
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                    stream_formats.append({
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                        'format_id': f'{stream_id}-{snum}.{unum}',
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                        'url': video_url,
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                        'ext': ext,
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                    })
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            images = traverse_obj(player_options, ('PlayerLayoutOptions', 'Images', {dict}))
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            if stream.get('HasSlideContent') and images:
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                stream_formats.append(self.__extract_slides(
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                    stream_id=stream_id,
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                    snum=snum,
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                    stream=stream,
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                    duration=presentation.get('Duration'),
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                    images=images,
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                ))
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            # disprefer 'secondary' streams
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            if stream_type != 0:
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                for fmt in stream_formats:
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                    fmt['quality'] = -10
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            thumbnail_url = stream.get('ThumbnailUrl')
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            if thumbnail_url:
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                thumbnails.append({
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                    'id': f'{stream_id}-{snum}',
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                    'url': urljoin(redirect_url, thumbnail_url),
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                    'preference': -1 if stream_type != 0 else 0,
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                })
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            formats.extend(stream_formats)
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        # XXX: Presentation['Presenters']
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        # XXX: Presentation['Transcript']
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        return {
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            'id': resource_id,
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            'title': title,
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            'description': presentation.get('Description'),
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            'duration': float_or_none(presentation.get('Duration'), 1000),
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            'timestamp': float_or_none(presentation.get('UnixTime'), 1000),
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            'formats': formats,
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            'thumbnails': thumbnails,
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        }
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class MediasiteCatalogIE(InfoExtractor):
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    _VALID_URL = rf'''(?xi)
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                        (?P<url>https?://[^/]+/Mediasite)
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                        /Catalog/Full/
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                        (?P<catalog_id>{_ID_RE})
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                        (?:
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                            /(?P<current_folder_id>{_ID_RE})
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                            /(?P<root_dynamic_folder_id>{_ID_RE})
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                        )?
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                    '''
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    _TESTS = [{
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        'url': 'http://events7.mediasite.com/Mediasite/Catalog/Full/631f9e48530d454381549f955d08c75e21',
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        'info_dict': {
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            'id': '631f9e48530d454381549f955d08c75e21',
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            'title': 'WCET Summit: Adaptive Learning in Higher Ed: Improving Outcomes Dynamically',
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        },
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        'playlist_count': 6,
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        'expected_warnings': ['is not a supported codec'],
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    }, {
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        # with CurrentFolderId and RootDynamicFolderId
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        'url': 'https://medaudio.medicine.iu.edu/Mediasite/Catalog/Full/9518c4a6c5cf4993b21cbd53e828a92521/97a9db45f7ab47428c77cd2ed74bb98f14/9518c4a6c5cf4993b21cbd53e828a92521',
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        'info_dict': {
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            'id': '9518c4a6c5cf4993b21cbd53e828a92521',
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            'title': 'IUSM Family and Friends Sessions',
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        },
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        'playlist_count': 2,
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    }, {
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        'url': 'http://uipsyc.mediasite.com/mediasite/Catalog/Full/d5d79287c75243c58c50fef50174ec1b21',
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        'only_matching': True,
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    }, {
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        # no AntiForgeryToken
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        'url': 'https://live.libraries.psu.edu/Mediasite/Catalog/Full/8376d4b24dd1457ea3bfe4cf9163feda21',
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        'only_matching': True,
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    }, {
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        'url': 'https://medaudio.medicine.iu.edu/Mediasite/Catalog/Full/9518c4a6c5cf4993b21cbd53e828a92521/97a9db45f7ab47428c77cd2ed74bb98f14/9518c4a6c5cf4993b21cbd53e828a92521',
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        'only_matching': True,
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    }, {
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        # dashed id
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        'url': 'http://events7.mediasite.com/Mediasite/Catalog/Full/631f9e48-530d-4543-8154-9f955d08c75e',
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        'only_matching': True,
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    }]
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    def _real_extract(self, url):
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        mobj = self._match_valid_url(url)
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        mediasite_url = mobj.group('url')
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        catalog_id = mobj.group('catalog_id')
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        current_folder_id = mobj.group('current_folder_id') or catalog_id
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        root_dynamic_folder_id = mobj.group('root_dynamic_folder_id')
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        webpage = self._download_webpage(url, catalog_id)
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        # AntiForgeryToken is optional (e.g. [1])
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        # 1. https://live.libraries.psu.edu/Mediasite/Catalog/Full/8376d4b24dd1457ea3bfe4cf9163feda21
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        anti_forgery_token = self._search_regex(
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            r'AntiForgeryToken\s*:\s*(["\'])(?P<value>(?:(?!\1).)+)\1',
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            webpage, 'anti forgery token', default=None, group='value')
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        if anti_forgery_token:
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            anti_forgery_header = self._search_regex(
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                r'AntiForgeryHeaderName\s*:\s*(["\'])(?P<value>(?:(?!\1).)+)\1',
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                webpage, 'anti forgery header name',
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                default='X-SOFO-AntiForgeryHeader', group='value')
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        data = {
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            'IsViewPage': True,
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            'IsNewFolder': True,
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            'AuthTicket': None,
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            'CatalogId': catalog_id,
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            'CurrentFolderId': current_folder_id,
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            'RootDynamicFolderId': root_dynamic_folder_id,
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            'ItemsPerPage': 1000,
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            'PageIndex': 0,
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            'PermissionMask': 'Execute',
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            'CatalogSearchType': 'SearchInFolder',
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            'SortBy': 'Date',
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            'SortDirection': 'Descending',
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            'StartDate': None,
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            'EndDate': None,
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            'StatusFilterList': None,
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            'PreviewKey': None,
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            'Tags': [],
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        }
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        headers = {
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            'Content-Type': 'application/json; charset=UTF-8',
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            'Referer': url,
 | 
						|
            'X-Requested-With': 'XMLHttpRequest',
 | 
						|
        }
 | 
						|
        if anti_forgery_token:
 | 
						|
            headers[anti_forgery_header] = anti_forgery_token
 | 
						|
 | 
						|
        catalog = self._download_json(
 | 
						|
            f'{mediasite_url}/Catalog/Data/GetPresentationsForFolder',
 | 
						|
            catalog_id, data=json.dumps(data).encode(), headers=headers)
 | 
						|
 | 
						|
        entries = []
 | 
						|
        for video in catalog['PresentationDetailsList']:
 | 
						|
            if not isinstance(video, dict):
 | 
						|
                continue
 | 
						|
            video_id = str_or_none(video.get('Id'))
 | 
						|
            if not video_id:
 | 
						|
                continue
 | 
						|
            entries.append(self.url_result(
 | 
						|
                f'{mediasite_url}/Play/{video_id}',
 | 
						|
                ie=MediasiteIE.ie_key(), video_id=video_id))
 | 
						|
 | 
						|
        title = try_get(
 | 
						|
            catalog, lambda x: x['CurrentFolder']['Name'], str)
 | 
						|
 | 
						|
        return self.playlist_result(entries, catalog_id, title)
 | 
						|
 | 
						|
 | 
						|
class MediasiteNamedCatalogIE(InfoExtractor):
 | 
						|
    _VALID_URL = r'(?xi)(?P<url>https?://[^/]+/Mediasite)/Catalog/catalogs/(?P<catalog_name>[^/?#&]+)'
 | 
						|
    _TESTS = [{
 | 
						|
        'url': 'https://msite.misis.ru/Mediasite/Catalog/catalogs/2016-industrial-management-skriabin-o-o',
 | 
						|
        'only_matching': True,
 | 
						|
    }]
 | 
						|
 | 
						|
    def _real_extract(self, url):
 | 
						|
        mobj = self._match_valid_url(url)
 | 
						|
        mediasite_url = mobj.group('url')
 | 
						|
        catalog_name = mobj.group('catalog_name')
 | 
						|
 | 
						|
        webpage = self._download_webpage(url, catalog_name)
 | 
						|
 | 
						|
        catalog_id = self._search_regex(
 | 
						|
            rf'CatalogId\s*:\s*["\']({_ID_RE})', webpage, 'catalog id')
 | 
						|
 | 
						|
        return self.url_result(
 | 
						|
            f'{mediasite_url}/Catalog/Full/{catalog_id}',
 | 
						|
            ie=MediasiteCatalogIE.ie_key(), video_id=catalog_id)
 |