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[youtube-dl] / youtube_dl / extractor / theplatform.py
1 # -*- coding: utf-8 -*-
2 from __future__ import unicode_literals
3
4 import re
5 import time
6 import hmac
7 import binascii
8 import hashlib
9
10
11 from .common import InfoExtractor
12 from ..compat import (
13     compat_parse_qs,
14     compat_urllib_parse_urlparse,
15 )
16 from ..utils import (
17     determine_ext,
18     ExtractorError,
19     xpath_with_ns,
20     unsmuggle_url,
21     int_or_none,
22     url_basename,
23     float_or_none,
24 )
25
26 default_ns = 'http://www.w3.org/2005/SMIL21/Language'
27 _x = lambda p: xpath_with_ns(p, {'smil': default_ns})
28
29
30 class ThePlatformBaseIE(InfoExtractor):
31     def _extract_theplatform_smil(self, smil_url, video_id, note='Downloading SMIL data'):
32         meta = self._download_xml(smil_url, video_id, note=note)
33         try:
34             error_msg = next(
35                 n.attrib['abstract']
36                 for n in meta.findall(_x('.//smil:ref'))
37                 if n.attrib.get('title') == 'Geographic Restriction' or n.attrib.get('title') == 'Expired')
38         except StopIteration:
39             pass
40         else:
41             raise ExtractorError(error_msg, expected=True)
42
43         formats = self._parse_smil_formats(
44             meta, smil_url, video_id, namespace=default_ns,
45             # the parameters are from syfy.com, other sites may use others,
46             # they also work for nbc.com
47             f4m_params={'g': 'UXWGVKRWHFSP', 'hdcore': '3.0.3'},
48             transform_rtmp_url=lambda streamer, src: (streamer, 'mp4:' + src))
49
50         for _format in formats:
51             ext = determine_ext(_format['url'])
52             if ext == 'once':
53                 _format['ext'] = 'mp4'
54
55         self._sort_formats(formats)
56
57         subtitles = self._parse_smil_subtitles(meta, default_ns)
58
59         return formats, subtitles
60
61     def get_metadata(self, path, video_id):
62         info_url = 'http://link.theplatform.com/s/%s?format=preview' % path
63         info = self._download_json(info_url, video_id)
64
65         subtitles = {}
66         captions = info.get('captions')
67         if isinstance(captions, list):
68             for caption in captions:
69                 lang, src, mime = caption.get('lang', 'en'), caption.get('src'), caption.get('type')
70                 subtitles[lang] = [{
71                     'ext': 'srt' if mime == 'text/srt' else 'ttml',
72                     'url': src,
73                 }]
74
75         return {
76             'title': info['title'],
77             'subtitles': subtitles,
78             'description': info['description'],
79             'thumbnail': info['defaultThumbnailUrl'],
80             'duration': int_or_none(info.get('duration'), 1000),
81         }
82
83
84 class ThePlatformIE(ThePlatformBaseIE):
85     _VALID_URL = r'''(?x)
86         (?:https?://(?:link|player)\.theplatform\.com/[sp]/(?P<provider_id>[^/]+)/
87            (?:(?P<media>(?:[^/]+/)+select/media/)|(?P<config>(?:[^/\?]+/(?:swf|config)|onsite)/select/))?
88          |theplatform:)(?P<id>[^/\?&]+)'''
89
90     _TESTS = [{
91         # from http://www.metacafe.com/watch/cb-e9I_cZgTgIPd/blackberrys_big_bold_z30/
92         'url': 'http://link.theplatform.com/s/dJ5BDC/e9I_cZgTgIPd/meta.smil?format=smil&Tracking=true&mbr=true',
93         'info_dict': {
94             'id': 'e9I_cZgTgIPd',
95             'ext': 'flv',
96             'title': 'Blackberry\'s big, bold Z30',
97             'description': 'The Z30 is Blackberry\'s biggest, baddest mobile messaging device yet.',
98             'duration': 247,
99         },
100         'params': {
101             # rtmp download
102             'skip_download': True,
103         },
104     }, {
105         # from http://www.cnet.com/videos/tesla-model-s-a-second-step-towards-a-cleaner-motoring-future/
106         'url': 'http://link.theplatform.com/s/kYEXFC/22d_qsQ6MIRT',
107         'info_dict': {
108             'id': '22d_qsQ6MIRT',
109             'ext': 'flv',
110             'description': 'md5:ac330c9258c04f9d7512cf26b9595409',
111             'title': 'Tesla Model S: A second step towards a cleaner motoring future',
112         },
113         'params': {
114             # rtmp download
115             'skip_download': True,
116         }
117     }, {
118         'url': 'https://player.theplatform.com/p/D6x-PC/pulse_preview/embed/select/media/yMBg9E8KFxZD',
119         'info_dict': {
120             'id': 'yMBg9E8KFxZD',
121             'ext': 'mp4',
122             'description': 'md5:644ad9188d655b742f942bf2e06b002d',
123             'title': 'HIGHLIGHTS: USA bag first ever series Cup win',
124         }
125     }, {
126         'url': 'http://player.theplatform.com/p/NnzsPC/widget/select/media/4Y0TlYUr_ZT7',
127         'only_matching': True,
128     }, {
129         'url': 'http://player.theplatform.com/p/2E2eJC/nbcNewsOffsite?guid=tdy_or_siri_150701',
130         'md5': '734f3790fb5fc4903da391beeebc4836',
131         'info_dict': {
132             'id': 'tdy_or_siri_150701',
133             'ext': 'mp4',
134             'title': 'iPhone Siri’s sassy response to a math question has people talking',
135             'description': 'md5:a565d1deadd5086f3331d57298ec6333',
136             'duration': 83.0,
137             'thumbnail': 're:^https?://.*\.jpg$',
138             'timestamp': 1435752600,
139             'upload_date': '20150701',
140             'categories': ['Today/Shows/Orange Room', 'Today/Sections/Money', 'Today/Topics/Tech', "Today/Topics/Editor's picks"],
141         },
142     }]
143
144     @staticmethod
145     def _sign_url(url, sig_key, sig_secret, life=600, include_qs=False):
146         flags = '10' if include_qs else '00'
147         expiration_date = '%x' % (int(time.time()) + life)
148
149         def str_to_hex(str):
150             return binascii.b2a_hex(str.encode('ascii')).decode('ascii')
151
152         def hex_to_str(hex):
153             return binascii.a2b_hex(hex)
154
155         relative_path = url.split('http://link.theplatform.com/s/')[1].split('?')[0]
156         clear_text = hex_to_str(flags + expiration_date + str_to_hex(relative_path))
157         checksum = hmac.new(sig_key.encode('ascii'), clear_text, hashlib.sha1).hexdigest()
158         sig = flags + expiration_date + checksum + str_to_hex(sig_secret)
159         return '%s&sig=%s' % (url, sig)
160
161     def _real_extract(self, url):
162         url, smuggled_data = unsmuggle_url(url, {})
163
164         mobj = re.match(self._VALID_URL, url)
165         provider_id = mobj.group('provider_id')
166         video_id = mobj.group('id')
167
168         if not provider_id:
169             provider_id = 'dJ5BDC'
170
171         path = provider_id
172         if mobj.group('media'):
173             path += '/media'
174         path += '/' + video_id
175
176         qs_dict = compat_parse_qs(compat_urllib_parse_urlparse(url).query)
177         if 'guid' in qs_dict:
178             webpage = self._download_webpage(url, video_id)
179             scripts = re.findall(r'<script[^>]+src="([^"]+)"', webpage)
180             feed_id = None
181             # feed id usually locates in the last script.
182             # Seems there's no pattern for the interested script filename, so
183             # I try one by one
184             for script in reversed(scripts):
185                 feed_script = self._download_webpage(script, video_id, 'Downloading feed script')
186                 feed_id = self._search_regex(r'defaultFeedId\s*:\s*"([^"]+)"', feed_script, 'default feed id', default=None)
187                 if feed_id is not None:
188                     break
189             if feed_id is None:
190                 raise ExtractorError('Unable to find feed id')
191             return self.url_result('http://feed.theplatform.com/f/%s/%s?byGuid=%s' % (
192                 provider_id, feed_id, qs_dict['guid'][0]))
193
194         if smuggled_data.get('force_smil_url', False):
195             smil_url = url
196         elif mobj.group('config'):
197             config_url = url + '&form=json'
198             config_url = config_url.replace('swf/', 'config/')
199             config_url = config_url.replace('onsite/', 'onsite/config/')
200             config = self._download_json(config_url, video_id, 'Downloading config')
201             if 'releaseUrl' in config:
202                 release_url = config['releaseUrl']
203             else:
204                 release_url = 'http://link.theplatform.com/s/%s?mbr=true' % path
205             smil_url = release_url + '&format=SMIL&formats=MPEG4&manifest=f4m'
206         else:
207             smil_url = 'http://link.theplatform.com/s/%s/meta.smil?format=smil&mbr=true' % path
208
209         sig = smuggled_data.get('sig')
210         if sig:
211             smil_url = self._sign_url(smil_url, sig['key'], sig['secret'])
212
213         formats, subtitles = self._extract_theplatform_smil(smil_url, video_id)
214
215         ret = self.get_metadata(path, video_id)
216         combined_subtitles = self._merge_subtitles(ret.get('subtitles', {}), subtitles)
217         ret.update({
218             'id': video_id,
219             'formats': formats,
220             'subtitles': combined_subtitles,
221         })
222
223         return ret
224
225
226 class ThePlatformFeedIE(ThePlatformBaseIE):
227     _URL_TEMPLATE = '%s//feed.theplatform.com/f/%s/%s?form=json&byGuid=%s'
228     _VALID_URL = r'https?://feed\.theplatform\.com/f/(?P<provider_id>[^/]+)/(?P<feed_id>[^?/]+)\?(?:[^&]+&)*byGuid=(?P<id>[a-zA-Z0-9_]+)'
229     _TEST = {
230         # From http://player.theplatform.com/p/7wvmTC/MSNBCEmbeddedOffSite?guid=n_hardball_5biden_140207
231         'url': 'http://feed.theplatform.com/f/7wvmTC/msnbc_video-p-test?form=json&pretty=true&range=-40&byGuid=n_hardball_5biden_140207',
232         'md5': '22d2b84f058d3586efcd99e57d59d314',
233         'info_dict': {
234             'id': 'n_hardball_5biden_140207',
235             'ext': 'mp4',
236             'title': 'The Biden factor: will Joe run in 2016?',
237             'description': 'Could Vice President Joe Biden be preparing a 2016 campaign? Mark Halperin and Sam Stein weigh in.',
238             'thumbnail': 're:^https?://.*\.jpg$',
239             'upload_date': '20140208',
240             'timestamp': 1391824260,
241             'duration': 467.0,
242             'categories': ['MSNBC/Issues/Democrats', 'MSNBC/Issues/Elections/Election 2016'],
243         },
244     }
245
246     def _real_extract(self, url):
247         mobj = re.match(self._VALID_URL, url)
248
249         video_id = mobj.group('id')
250         provider_id = mobj.group('provider_id')
251         feed_id = mobj.group('feed_id')
252
253         real_url = self._URL_TEMPLATE % (self.http_scheme(), provider_id, feed_id, video_id)
254         feed = self._download_json(real_url, video_id)
255         entry = feed['entries'][0]
256
257         formats = []
258         subtitles = {}
259         first_video_id = None
260         duration = None
261         for item in entry['media$content']:
262             smil_url = item['plfile$url'] + '&format=SMIL&Tracking=true&Embedded=true&formats=MPEG4,F4M'
263             cur_video_id = url_basename(smil_url)
264             if first_video_id is None:
265                 first_video_id = cur_video_id
266                 duration = float_or_none(item.get('plfile$duration'))
267             cur_formats, cur_subtitles = self._extract_theplatform_smil(smil_url, video_id, 'Downloading SMIL data for %s' % cur_video_id)
268             formats.extend(cur_formats)
269             subtitles = self._merge_subtitles(subtitles, cur_subtitles)
270
271         self._sort_formats(formats)
272
273         thumbnails = [{
274             'url': thumbnail['plfile$url'],
275             'width': int_or_none(thumbnail.get('plfile$width')),
276             'height': int_or_none(thumbnail.get('plfile$height')),
277         } for thumbnail in entry.get('media$thumbnails', [])]
278
279         timestamp = int_or_none(entry.get('media$availableDate'), scale=1000)
280         categories = [item['media$name'] for item in entry.get('media$categories', [])]
281
282         ret = self.get_metadata('%s/%s' % (provider_id, first_video_id), video_id)
283         subtitles = self._merge_subtitles(subtitles, ret['subtitles'])
284         ret.update({
285             'id': video_id,
286             'formats': formats,
287             'subtitles': subtitles,
288             'thumbnails': thumbnails,
289             'duration': duration,
290             'timestamp': timestamp,
291             'categories': categories,
292         })
293
294         return ret