+ 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'
+
+ path = provider_id
+ if mobj.group('media'):
+ path += '/media'
+ path += '/' + video_id
+
+ qs_dict = compat_parse_qs(compat_urllib_parse_urlparse(url).query)
+ if 'guid' in qs_dict:
+ webpage = self._download_webpage(url, video_id)
+ scripts = re.findall(r'<script[^>]+src="([^"]+)"', webpage)
+ feed_id = None
+ # feed id usually locates in the last script.
+ # Seems there's no pattern for the interested script filename, so
+ # I try one by one
+ for script in reversed(scripts):
+ feed_script = self._download_webpage(script, video_id, 'Downloading feed script')
+ feed_id = self._search_regex(r'defaultFeedId\s*:\s*"([^"]+)"', feed_script, 'default feed id', default=None)
+ if feed_id is not None:
+ break
+ if feed_id is None:
+ raise ExtractorError('Unable to find feed id')
+ return self.url_result('http://feed.theplatform.com/f/%s/%s?byGuid=%s' % (
+ provider_id, feed_id, qs_dict['guid'][0]))
+
+ 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')
+ if 'releaseUrl' in config:
+ release_url = config['releaseUrl']
+ else:
+ release_url = 'http://link.theplatform.com/s/%s?mbr=true' % path
+ smil_url = release_url + '&format=SMIL&formats=MPEG4&manifest=f4m'
+ else:
+ smil_url = 'http://link.theplatform.com/s/%s/meta.smil?format=smil&mbr=true' % path
+
+ sig = smuggled_data.get('sig')
+ if sig:
+ smil_url = self._sign_url(smil_url, sig['key'], sig['secret'])
+
+ formats, subtitles = self._extract_theplatform_smil(smil_url, video_id)
+
+ ret = self.get_metadata(path, video_id)
+ combined_subtitles = self._merge_subtitles(ret.get('subtitles', {}), subtitles)
+ ret.update({