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[youtubedl] / youtube_dl / extractor / theplatform.py
1 from __future__ import unicode_literals
2
3 import re
4 import json
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_str,
14 )
15 from ..utils import (
16 determine_ext,
17 ExtractorError,
18 xpath_with_ns,
19 unsmuggle_url,
20 int_or_none,
21 )
22
23 _x = lambda p: xpath_with_ns(p, {'smil': 'http://www.w3.org/2005/SMIL21/Language'})
24
25
26 class ThePlatformIE(InfoExtractor):
27 _VALID_URL = r'''(?x)
28 (?:https?://(?:link|player)\.theplatform\.com/[sp]/(?P<provider_id>[^/]+)/
29 (?:(?P<media>(?:[^/]+/)+select/media/)|(?P<config>(?:[^/\?]+/(?:swf|config)|onsite)/select/))?
30 |theplatform:)(?P<id>[^/\?&]+)'''
31
32 _TESTS = [{
33 # from http://www.metacafe.com/watch/cb-e9I_cZgTgIPd/blackberrys_big_bold_z30/
34 'url': 'http://link.theplatform.com/s/dJ5BDC/e9I_cZgTgIPd/meta.smil?format=smil&Tracking=true&mbr=true',
35 'info_dict': {
36 'id': 'e9I_cZgTgIPd',
37 'ext': 'flv',
38 'title': 'Blackberry\'s big, bold Z30',
39 'description': 'The Z30 is Blackberry\'s biggest, baddest mobile messaging device yet.',
40 'duration': 247,
41 },
42 'params': {
43 # rtmp download
44 'skip_download': True,
45 },
46 }, {
47 # from http://www.cnet.com/videos/tesla-model-s-a-second-step-towards-a-cleaner-motoring-future/
48 'url': 'http://link.theplatform.com/s/kYEXFC/22d_qsQ6MIRT',
49 'info_dict': {
50 'id': '22d_qsQ6MIRT',
51 'ext': 'flv',
52 'description': 'md5:ac330c9258c04f9d7512cf26b9595409',
53 'title': 'Tesla Model S: A second step towards a cleaner motoring future',
54 },
55 'params': {
56 # rtmp download
57 'skip_download': True,
58 }
59 }, {
60 'url': 'https://player.theplatform.com/p/D6x-PC/pulse_preview/embed/select/media/yMBg9E8KFxZD',
61 'info_dict': {
62 'id': 'yMBg9E8KFxZD',
63 'ext': 'mp4',
64 'description': 'md5:644ad9188d655b742f942bf2e06b002d',
65 'title': 'HIGHLIGHTS: USA bag first ever series Cup win',
66 }
67 }, {
68 'url': 'http://player.theplatform.com/p/NnzsPC/widget/select/media/4Y0TlYUr_ZT7',
69 'only_matching': True,
70 }]
71
72 @staticmethod
73 def _sign_url(url, sig_key, sig_secret, life=600, include_qs=False):
74 flags = '10' if include_qs else '00'
75 expiration_date = '%x' % (int(time.time()) + life)
76
77 def str_to_hex(str):
78 return binascii.b2a_hex(str.encode('ascii')).decode('ascii')
79
80 def hex_to_str(hex):
81 return binascii.a2b_hex(hex)
82
83 relative_path = url.split('http://link.theplatform.com/s/')[1].split('?')[0]
84 clear_text = hex_to_str(flags + expiration_date + str_to_hex(relative_path))
85 checksum = hmac.new(sig_key.encode('ascii'), clear_text, hashlib.sha1).hexdigest()
86 sig = flags + expiration_date + checksum + str_to_hex(sig_secret)
87 return '%s&sig=%s' % (url, sig)
88
89 def _real_extract(self, url):
90 url, smuggled_data = unsmuggle_url(url, {})
91
92 mobj = re.match(self._VALID_URL, url)
93 provider_id = mobj.group('provider_id')
94 video_id = mobj.group('id')
95
96 if not provider_id:
97 provider_id = 'dJ5BDC'
98
99 path = provider_id
100 if mobj.group('media'):
101 path += '/media'
102 path += '/' + video_id
103
104 if smuggled_data.get('force_smil_url', False):
105 smil_url = url
106 elif mobj.group('config'):
107 config_url = url + '&form=json'
108 config_url = config_url.replace('swf/', 'config/')
109 config_url = config_url.replace('onsite/', 'onsite/config/')
110 config = self._download_json(config_url, video_id, 'Downloading config')
111 smil_url = config['releaseUrl'] + '&format=SMIL&formats=MPEG4&manifest=f4m'
112 else:
113 smil_url = 'http://link.theplatform.com/s/%s/meta.smil?format=smil&mbr=true' % path
114
115 sig = smuggled_data.get('sig')
116 if sig:
117 smil_url = self._sign_url(smil_url, sig['key'], sig['secret'])
118
119 meta = self._download_xml(smil_url, video_id)
120 try:
121 error_msg = next(
122 n.attrib['abstract']
123 for n in meta.findall(_x('.//smil:ref'))
124 if n.attrib.get('title') == 'Geographic Restriction' or n.attrib.get('title') == 'Expired')
125 except StopIteration:
126 pass
127 else:
128 raise ExtractorError(error_msg, expected=True)
129
130 info_url = 'http://link.theplatform.com/s/%s?format=preview' % path
131 info_json = self._download_webpage(info_url, video_id)
132 info = json.loads(info_json)
133
134 subtitles = {}
135 captions = info.get('captions')
136 if isinstance(captions, list):
137 for caption in captions:
138 lang, src, mime = caption.get('lang', 'en'), caption.get('src'), caption.get('type')
139 subtitles[lang] = [{
140 'ext': 'srt' if mime == 'text/srt' else 'ttml',
141 'url': src,
142 }]
143
144 head = meta.find(_x('smil:head'))
145 body = meta.find(_x('smil:body'))
146
147 f4m_node = body.find(_x('smil:seq//smil:video'))
148 if f4m_node is None:
149 f4m_node = body.find(_x('smil:seq/smil:video'))
150 if f4m_node is not None and '.f4m' in f4m_node.attrib['src']:
151 f4m_url = f4m_node.attrib['src']
152 if 'manifest.f4m?' not in f4m_url:
153 f4m_url += '?'
154 # the parameters are from syfy.com, other sites may use others,
155 # they also work for nbc.com
156 f4m_url += '&g=UXWGVKRWHFSP&hdcore=3.0.3'
157 formats = self._extract_f4m_formats(f4m_url, video_id)
158 else:
159 formats = []
160 switch = body.find(_x('smil:switch'))
161 if switch is None:
162 switch = body.find(_x('smil:par//smil:switch'))
163 if switch is None:
164 switch = body.find(_x('smil:par/smil:switch'))
165 if switch is None:
166 switch = body.find(_x('smil:par'))
167 if switch is not None:
168 base_url = head.find(_x('smil:meta')).attrib['base']
169 for f in switch.findall(_x('smil:video')):
170 attr = f.attrib
171 width = int_or_none(attr.get('width'))
172 height = int_or_none(attr.get('height'))
173 vbr = int_or_none(attr.get('system-bitrate'), 1000)
174 format_id = '%dx%d_%dk' % (width, height, vbr)
175 formats.append({
176 'format_id': format_id,
177 'url': base_url,
178 'play_path': 'mp4:' + attr['src'],
179 'ext': 'flv',
180 'width': width,
181 'height': height,
182 'vbr': vbr,
183 })
184 else:
185 switch = body.find(_x('smil:seq//smil:switch'))
186 if switch is None:
187 switch = body.find(_x('smil:seq/smil:switch'))
188 for f in switch.findall(_x('smil:video')):
189 attr = f.attrib
190 vbr = int_or_none(attr.get('system-bitrate'), 1000)
191 ext = determine_ext(attr['src'])
192 if ext == 'once':
193 ext = 'mp4'
194 formats.append({
195 'format_id': compat_str(vbr),
196 'url': attr['src'],
197 'vbr': vbr,
198 'ext': ext,
199 })
200 self._sort_formats(formats)
201
202 return {
203 'id': video_id,
204 'title': info['title'],
205 'subtitles': subtitles,
206 'formats': formats,
207 'description': info['description'],
208 'thumbnail': info['defaultThumbnailUrl'],
209 'duration': int_or_none(info.get('duration'), 1000),
210 }