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[youtubedl] / youtube_dl / extractor / brightcove.py
1 # encoding: utf-8
2
3 import re
4 import json
5 import xml.etree.ElementTree
6
7 from .common import InfoExtractor
8 from ..utils import (
9 compat_urllib_parse,
10 find_xpath_attr,
11 compat_urlparse,
12
13 ExtractorError,
14 )
15
16 class BrightcoveIE(InfoExtractor):
17 _VALID_URL = r'https?://.*brightcove\.com/(services|viewer).*\?(?P<query>.*)'
18 _FEDERATED_URL_TEMPLATE = 'http://c.brightcove.com/services/viewer/htmlFederated?%s'
19 _PLAYLIST_URL_TEMPLATE = 'http://c.brightcove.com/services/json/experience/runtime/?command=get_programming_for_experience&playerKey=%s'
20
21 _TESTS = [
22 {
23 # From http://www.8tv.cat/8aldia/videos/xavier-sala-i-martin-aquesta-tarda-a-8-al-dia/
24 u'url': u'http://c.brightcove.com/services/viewer/htmlFederated?playerID=1654948606001&flashID=myExperience&%40videoPlayer=2371591881001',
25 u'file': u'2371591881001.mp4',
26 u'md5': u'9e80619e0a94663f0bdc849b4566af19',
27 u'note': u'Test Brightcove downloads and detection in GenericIE',
28 u'info_dict': {
29 u'title': u'Xavier Sala i Martín: “Un banc que no presta és un banc zombi que no serveix per a res”',
30 u'uploader': u'8TV',
31 u'description': u'md5:a950cc4285c43e44d763d036710cd9cd',
32 }
33 },
34 {
35 # From http://medianetwork.oracle.com/video/player/1785452137001
36 u'url': u'http://c.brightcove.com/services/viewer/htmlFederated?playerID=1217746023001&flashID=myPlayer&%40videoPlayer=1785452137001',
37 u'file': u'1785452137001.flv',
38 u'info_dict': {
39 u'title': u'JVMLS 2012: Arrays 2.0 - Opportunities and Challenges',
40 u'description': u'John Rose speaks at the JVM Language Summit, August 1, 2012.',
41 u'uploader': u'Oracle',
42 },
43 },
44 ]
45
46 @classmethod
47 def _build_brighcove_url(cls, object_str):
48 """
49 Build a Brightcove url from a xml string containing
50 <object class="BrightcoveExperience">{params}</object>
51 """
52 object_doc = xml.etree.ElementTree.fromstring(object_str)
53 assert u'BrightcoveExperience' in object_doc.attrib['class']
54 params = {'flashID': object_doc.attrib['id'],
55 'playerID': find_xpath_attr(object_doc, './param', 'name', 'playerID').attrib['value'],
56 }
57 playerKey = find_xpath_attr(object_doc, './param', 'name', 'playerKey')
58 # Not all pages define this value
59 if playerKey is not None:
60 params['playerKey'] = playerKey.attrib['value']
61 videoPlayer = find_xpath_attr(object_doc, './param', 'name', '@videoPlayer')
62 if videoPlayer is not None:
63 params['@videoPlayer'] = videoPlayer.attrib['value']
64 data = compat_urllib_parse.urlencode(params)
65 return cls._FEDERATED_URL_TEMPLATE % data
66
67 def _real_extract(self, url):
68 mobj = re.match(self._VALID_URL, url)
69 query_str = mobj.group('query')
70 query = compat_urlparse.parse_qs(query_str)
71
72 videoPlayer = query.get('@videoPlayer')
73 if videoPlayer:
74 return self._get_video_info(videoPlayer[0], query_str)
75 else:
76 player_key = query['playerKey']
77 return self._get_playlist_info(player_key[0])
78
79 def _get_video_info(self, video_id, query):
80 request_url = self._FEDERATED_URL_TEMPLATE % query
81 webpage = self._download_webpage(request_url, video_id)
82
83 self.report_extraction(video_id)
84 info = self._search_regex(r'var experienceJSON = ({.*?});', webpage, 'json')
85 info = json.loads(info)['data']
86 video_info = info['programmedContent']['videoPlayer']['mediaDTO']
87
88 return self._extract_video_info(video_info)
89
90 def _get_playlist_info(self, player_key):
91 playlist_info = self._download_webpage(self._PLAYLIST_URL_TEMPLATE % player_key,
92 player_key, u'Downloading playlist information')
93
94 playlist_info = json.loads(playlist_info)['videoList']
95 videos = [self._extract_video_info(video_info) for video_info in playlist_info['mediaCollectionDTO']['videoDTOs']]
96
97 return self.playlist_result(videos, playlist_id=playlist_info['id'],
98 playlist_title=playlist_info['mediaCollectionDTO']['displayName'])
99
100 def _extract_video_info(self, video_info):
101 info = {
102 'id': video_info['id'],
103 'title': video_info['displayName'],
104 'description': video_info.get('shortDescription'),
105 'thumbnail': video_info.get('videoStillURL') or video_info.get('thumbnailURL'),
106 'uploader': video_info.get('publisherName'),
107 }
108
109 renditions = video_info.get('renditions')
110 if renditions:
111 renditions = sorted(renditions, key=lambda r: r['size'])
112 best_format = renditions[-1]
113 info.update({
114 'url': best_format['defaultURL'],
115 'ext': 'mp4',
116 })
117 elif video_info.get('FLVFullLengthURL') is not None:
118 info.update({
119 'url': video_info['FLVFullLengthURL'],
120 'ext': 'flv',
121 })
122 else:
123 raise ExtractorError(u'Unable to extract video url for %s' % info['id'])
124 return info