mirror of
https://github.com/l1ving/youtube-dl
synced 2024-12-29 09:32:50 +08:00
252 lines
10 KiB
Python
252 lines
10 KiB
Python
# encoding: utf-8
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from __future__ import unicode_literals
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import re
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import json
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import xml.etree.ElementTree
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from .common import InfoExtractor
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from ..utils import (
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compat_urllib_parse,
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find_xpath_attr,
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fix_xml_ampersands,
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compat_urlparse,
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compat_str,
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compat_urllib_request,
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compat_parse_qs,
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ExtractorError,
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unsmuggle_url,
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unescapeHTML,
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)
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class BrightcoveIE(InfoExtractor):
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_VALID_URL = r'https?://.*brightcove\.com/(services|viewer).*\?(?P<query>.*)'
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_FEDERATED_URL_TEMPLATE = 'http://c.brightcove.com/services/viewer/htmlFederated?%s'
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_TESTS = [
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{
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# From http://www.8tv.cat/8aldia/videos/xavier-sala-i-martin-aquesta-tarda-a-8-al-dia/
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'url': 'http://c.brightcove.com/services/viewer/htmlFederated?playerID=1654948606001&flashID=myExperience&%40videoPlayer=2371591881001',
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'file': '2371591881001.mp4',
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'md5': '5423e113865d26e40624dce2e4b45d95',
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'note': 'Test Brightcove downloads and detection in GenericIE',
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'info_dict': {
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'title': 'Xavier Sala i Martín: “Un banc que no presta és un banc zombi que no serveix per a res”',
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'uploader': '8TV',
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'description': 'md5:a950cc4285c43e44d763d036710cd9cd',
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}
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},
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{
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# From http://medianetwork.oracle.com/video/player/1785452137001
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'url': 'http://c.brightcove.com/services/viewer/htmlFederated?playerID=1217746023001&flashID=myPlayer&%40videoPlayer=1785452137001',
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'file': '1785452137001.flv',
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'info_dict': {
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'title': 'JVMLS 2012: Arrays 2.0 - Opportunities and Challenges',
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'description': 'John Rose speaks at the JVM Language Summit, August 1, 2012.',
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'uploader': 'Oracle',
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},
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},
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{
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# From http://mashable.com/2013/10/26/thermoelectric-bracelet-lets-you-control-your-body-temperature/
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'url': 'http://c.brightcove.com/services/viewer/federated_f9?&playerID=1265504713001&publisherID=AQ%7E%7E%2CAAABBzUwv1E%7E%2CxP-xFHVUstiMFlNYfvF4G9yFnNaqCw_9&videoID=2750934548001',
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'info_dict': {
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'id': '2750934548001',
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'ext': 'mp4',
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'title': 'This Bracelet Acts as a Personal Thermostat',
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'description': 'md5:547b78c64f4112766ccf4e151c20b6a0',
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'uploader': 'Mashable',
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},
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},
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{
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# test that the default referer works
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# from http://national.ballet.ca/interact/video/Lost_in_Motion_II/
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'url': 'http://link.brightcove.com/services/player/bcpid756015033001?bckey=AQ~~,AAAApYJi_Ck~,GxhXCegT1Dp39ilhXuxMJxasUhVNZiil&bctid=2878862109001',
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'info_dict': {
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'id': '2878862109001',
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'ext': 'mp4',
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'title': 'Lost in Motion II',
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'description': 'md5:363109c02998fee92ec02211bd8000df',
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'uploader': 'National Ballet of Canada',
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},
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}
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]
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@classmethod
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def _build_brighcove_url(cls, object_str):
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"""
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Build a Brightcove url from a xml string containing
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<object class="BrightcoveExperience">{params}</object>
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"""
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# Fix up some stupid HTML, see https://github.com/rg3/youtube-dl/issues/1553
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object_str = re.sub(r'(<param name="[^"]+" value="[^"]+")>',
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lambda m: m.group(1) + '/>', object_str)
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# Fix up some stupid XML, see https://github.com/rg3/youtube-dl/issues/1608
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object_str = object_str.replace('<--', '<!--')
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object_str = fix_xml_ampersands(object_str)
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object_doc = xml.etree.ElementTree.fromstring(object_str.encode('utf-8'))
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fv_el = find_xpath_attr(object_doc, './param', 'name', 'flashVars')
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if fv_el is not None:
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flashvars = dict(
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(k, v[0])
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for k, v in compat_parse_qs(fv_el.attrib['value']).items())
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else:
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flashvars = {}
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def find_param(name):
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if name in flashvars:
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return flashvars[name]
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node = find_xpath_attr(object_doc, './param', 'name', name)
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if node is not None:
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return node.attrib['value']
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return None
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params = {}
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playerID = find_param('playerID')
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if playerID is None:
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raise ExtractorError('Cannot find player ID')
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params['playerID'] = playerID
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playerKey = find_param('playerKey')
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# Not all pages define this value
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if playerKey is not None:
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params['playerKey'] = playerKey
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# The three fields hold the id of the video
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videoPlayer = find_param('@videoPlayer') or find_param('videoId') or find_param('videoID')
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if videoPlayer is not None:
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params['@videoPlayer'] = videoPlayer
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linkBase = find_param('linkBaseURL')
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if linkBase is not None:
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params['linkBaseURL'] = linkBase
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data = compat_urllib_parse.urlencode(params)
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return cls._FEDERATED_URL_TEMPLATE % data
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@classmethod
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def _extract_brightcove_url(cls, webpage):
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"""Try to extract the brightcove url from the webpage, returns None
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if it can't be found
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"""
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urls = cls._extract_brightcove_urls(webpage)
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return urls[0] if urls else None
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@classmethod
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def _extract_brightcove_urls(cls, webpage):
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"""Return a list of all Brightcove URLs from the webpage """
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url_m = re.search(r'<meta\s+property="og:video"\s+content="(http://c.brightcove.com/[^"]+)"', webpage)
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if url_m:
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url = unescapeHTML(url_m.group(1))
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# Some sites don't add it, we can't download with this url, for example:
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# http://www.ktvu.com/videos/news/raw-video-caltrain-releases-video-of-man-almost/vCTZdY/
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if 'playerKey' in url:
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return [url]
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matches = re.findall(
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r'''(?sx)<object
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(?:
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[^>]+?class=[\'"][^>]*?BrightcoveExperience.*?[\'"] |
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[^>]*?>\s*<param\s+name="movie"\s+value="https?://[^/]*brightcove\.com/
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).+?</object>''',
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webpage)
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return [cls._build_brighcove_url(m) for m in matches]
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def _real_extract(self, url):
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url, smuggled_data = unsmuggle_url(url, {})
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# Change the 'videoId' and others field to '@videoPlayer'
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url = re.sub(r'(?<=[?&])(videoI(d|D)|bctid)', '%40videoPlayer', url)
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# Change bckey (used by bcove.me urls) to playerKey
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url = re.sub(r'(?<=[?&])bckey', 'playerKey', url)
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mobj = re.match(self._VALID_URL, url)
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query_str = mobj.group('query')
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query = compat_urlparse.parse_qs(query_str)
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videoPlayer = query.get('@videoPlayer')
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if videoPlayer:
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# We set the original url as the default 'Referer' header
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referer = smuggled_data.get('Referer', url)
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return self._get_video_info(
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videoPlayer[0], query_str, query, referer=referer)
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else:
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player_key = query['playerKey']
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return self._get_playlist_info(player_key[0])
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def _get_video_info(self, video_id, query_str, query, referer=None):
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request_url = self._FEDERATED_URL_TEMPLATE % query_str
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req = compat_urllib_request.Request(request_url)
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linkBase = query.get('linkBaseURL')
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if linkBase is not None:
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referer = linkBase[0]
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if referer is not None:
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req.add_header('Referer', referer)
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webpage = self._download_webpage(req, video_id)
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self.report_extraction(video_id)
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info = self._search_regex(r'var experienceJSON = ({.*?});', webpage, 'json')
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info = json.loads(info)['data']
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video_info = info['programmedContent']['videoPlayer']['mediaDTO']
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video_info['_youtubedl_adServerURL'] = info.get('adServerURL')
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return self._extract_video_info(video_info)
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def _get_playlist_info(self, player_key):
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info_url = 'http://c.brightcove.com/services/json/experience/runtime/?command=get_programming_for_experience&playerKey=%s' % player_key
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playlist_info = self._download_webpage(
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info_url, player_key, 'Downloading playlist information')
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json_data = json.loads(playlist_info)
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if 'videoList' not in json_data:
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raise ExtractorError('Empty playlist')
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playlist_info = json_data['videoList']
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videos = [self._extract_video_info(video_info) for video_info in playlist_info['mediaCollectionDTO']['videoDTOs']]
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return self.playlist_result(videos, playlist_id=playlist_info['id'],
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playlist_title=playlist_info['mediaCollectionDTO']['displayName'])
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def _extract_video_info(self, video_info):
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info = {
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'id': compat_str(video_info['id']),
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'title': video_info['displayName'].strip(),
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'description': video_info.get('shortDescription'),
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'thumbnail': video_info.get('videoStillURL') or video_info.get('thumbnailURL'),
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'uploader': video_info.get('publisherName'),
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}
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renditions = video_info.get('renditions')
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if renditions:
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renditions = sorted(renditions, key=lambda r: r['size'])
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info['formats'] = [{
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'url': rend['defaultURL'],
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'height': rend.get('frameHeight'),
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'width': rend.get('frameWidth'),
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} for rend in renditions]
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elif video_info.get('FLVFullLengthURL') is not None:
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info.update({
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'url': video_info['FLVFullLengthURL'],
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})
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if self._downloader.params.get('include_ads', False):
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adServerURL = video_info.get('_youtubedl_adServerURL')
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if adServerURL:
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ad_info = {
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'_type': 'url',
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'url': adServerURL,
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}
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if 'url' in info:
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return {
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'_type': 'playlist',
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'title': info['title'],
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'entries': [ad_info, info],
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}
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else:
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return ad_info
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if 'url' not in info and not info.get('formats'):
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raise ExtractorError('Unable to extract video url for %s' % info['id'])
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return info
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