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from __future__ import unicode_literals
import re
import json
import time
import hmac
import binascii
import hashlib
from .common import InfoExtractor
from ..compat import (
compat_str,
)
from ..utils import (
determine_ext,
ExtractorError,
xpath_with_ns,
unsmuggle_url,
int_or_none,
)
_x = lambda p: xpath_with_ns(p, {'smil': 'http://www.w3.org/2005/SMIL21/Language'})
class ThePlatformIE(InfoExtractor):
_VALID_URL = r'''(?x)
(?:https?://(?:link|player)\.theplatform\.com/[sp]/(?P<provider_id>[^/]+)/
(?P<config>(?:[^/\?]+/(?:swf|config)|onsite)/select/)?
|theplatform:)(?P<id>[^/\?&]+)'''
_TESTS = [{
# from http://www.metacafe.com/watch/cb-e9I_cZgTgIPd/blackberrys_big_bold_z30/
'url': 'http://link.theplatform.com/s/dJ5BDC/e9I_cZgTgIPd/meta.smil?format=smil&Tracking=true&mbr=true',
'info_dict': {
'id': 'e9I_cZgTgIPd',
'ext': 'flv',
'title': 'Blackberry\'s big, bold Z30',
'description': 'The Z30 is Blackberry\'s biggest, baddest mobile messaging device yet.',
'duration': 247,
},
'params': {
# rtmp download
'skip_download': True,
},
}, {
# from http://www.cnet.com/videos/tesla-model-s-a-second-step-towards-a-cleaner-motoring-future/
'url': 'http://link.theplatform.com/s/kYEXFC/22d_qsQ6MIRT',
'info_dict': {
'id': '22d_qsQ6MIRT',
'ext': 'flv',
'description': 'md5:ac330c9258c04f9d7512cf26b9595409',
'title': 'Tesla Model S: A second step towards a cleaner motoring future',
},
'params': {
# rtmp download
'skip_download': True,
}
}]
@staticmethod
def _sign_url(url, sig_key, sig_secret, life=600, include_qs=False):
flags = '10' if include_qs else '00'
expiration_date = '%x' % (int(time.time()) + life)
def str_to_hex(str):
return binascii.b2a_hex(str.encode('ascii')).decode('ascii')
def hex_to_str(hex):
return binascii.a2b_hex(hex)
relative_path = url.split('http://link.theplatform.com/s/')[1].split('?')[0]
clear_text = hex_to_str(flags + expiration_date + str_to_hex(relative_path))
checksum = hmac.new(sig_key.encode('ascii'), clear_text, hashlib.sha1).hexdigest()
sig = flags + expiration_date + checksum + str_to_hex(sig_secret)
return '%s&sig=%s' % (url, sig)
def _real_extract(self, url):
url, smuggled_data = unsmuggle_url(url, {})
mobj = re.match(self._VALID_URL, url)
provider_id = mobj.group('provider_id')
video_id = mobj.group('id')
if not provider_id:
provider_id = 'dJ5BDC'
if smuggled_data.get('force_smil_url', False):
smil_url = url
elif mobj.group('config'):
config_url = url + '&form=json'
config_url = config_url.replace('swf/', 'config/')
config_url = config_url.replace('onsite/', 'onsite/config/')
config = self._download_json(config_url, video_id, 'Downloading config')
smil_url = config['releaseUrl'] + '&format=SMIL&formats=MPEG4&manifest=f4m'
else:
smil_url = ('http://link.theplatform.com/s/{0}/{1}/meta.smil?'
'format=smil&mbr=true'.format(provider_id, video_id))
sig = smuggled_data.get('sig')
if sig:
smil_url = self._sign_url(smil_url, sig['key'], sig['secret'])
meta = self._download_xml(smil_url, video_id)
try:
error_msg = next(
n.attrib['abstract']
for n in meta.findall(_x('.//smil:ref'))
if n.attrib.get('title') == 'Geographic Restriction' or n.attrib.get('title') == 'Expired')
except StopIteration:
pass
else:
raise ExtractorError(error_msg, expected=True)
info_url = 'http://link.theplatform.com/s/{0}/{1}?format=preview'.format(provider_id, video_id)
info_json = self._download_webpage(info_url, video_id)
info = json.loads(info_json)
subtitles = {}
captions = info.get('captions')
if isinstance(captions, list):
for caption in captions:
lang, src, mime = caption.get('lang', 'en'), caption.get('src'), caption.get('type')
subtitles[lang] = [{
'ext': 'srt' if mime == 'text/srt' else 'ttml',
'url': src,
}]
head = meta.find(_x('smil:head'))
body = meta.find(_x('smil:body'))
f4m_node = body.find(_x('smil:seq//smil:video')) or body.find(_x('smil:seq/smil:video'))
if f4m_node is not None and '.f4m' in f4m_node.attrib['src']:
f4m_url = f4m_node.attrib['src']
if 'manifest.f4m?' not in f4m_url:
f4m_url += '?'
# the parameters are from syfy.com, other sites may use others,
# they also work for nbc.com
f4m_url += '&g=UXWGVKRWHFSP&hdcore=3.0.3'
formats = self._extract_f4m_formats(f4m_url, video_id)
else:
formats = []
switch = body.find(_x('smil:switch'))
if switch is None:
switch = body.find(_x('smil:par//smil:switch')) or body.find(_x('smil:par/smil:switch'))
if switch is None:
switch = body.find(_x('smil:par'))
if switch is not None:
base_url = head.find(_x('smil:meta')).attrib['base']
for f in switch.findall(_x('smil:video')):
attr = f.attrib
width = int_or_none(attr.get('width'))
height = int_or_none(attr.get('height'))
vbr = int_or_none(attr.get('system-bitrate'), 1000)
format_id = '%dx%d_%dk' % (width, height, vbr)
formats.append({
'format_id': format_id,
'url': base_url,
'play_path': 'mp4:' + attr['src'],
'ext': 'flv',
'width': width,
'height': height,
'vbr': vbr,
})
else:
switch = body.find(_x('smil:seq//smil:switch')) or body.find(_x('smil:seq/smil:switch'))
for f in switch.findall(_x('smil:video')):
attr = f.attrib
vbr = int_or_none(attr.get('system-bitrate'), 1000)
ext = determine_ext(attr['src'])
if ext == 'once':
ext = 'mp4'
formats.append({
'format_id': compat_str(vbr),
'url': attr['src'],
'vbr': vbr,
'ext': ext,
})
self._sort_formats(formats)
return {
'id': video_id,
'title': info['title'],
'subtitles': subtitles,
'formats': formats,
'description': info['description'],
'thumbnail': info['defaultThumbnailUrl'],
'duration': int_or_none(info.get('duration'), 1000),
}
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