+class VikiBaseIE(InfoExtractor):
+ _VALID_URL_BASE = r'https?://(?:www\.)?viki\.(?:com|net|mx|jp|fr)/'
+ _API_QUERY_TEMPLATE = '/v4/%sapp=%s&t=%s&site=www.viki.com'
+ _API_URL_TEMPLATE = 'http://api.viki.io%s&sig=%s'
+
+ _APP = '65535a'
+ _APP_VERSION = '2.2.5.1428709186'
+ _APP_SECRET = '-$iJ}@p7!G@SyU/je1bEyWg}upLu-6V6-Lg9VD(]siH,r.,m-r|ulZ,U4LC/SeR)'
+
+ _NETRC_MACHINE = 'viki'
+
+ _token = None
+
+ _ERRORS = {
+ 'geo': 'Sorry, this content is not available in your region.',
+ 'upcoming': 'Sorry, this content is not yet available.',
+ # 'paywall': 'paywall',
+ }
+
+ def _prepare_call(self, path, timestamp=None, post_data=None):
+ path += '?' if '?' not in path else '&'
+ if not timestamp:
+ timestamp = int(time.time())
+ query = self._API_QUERY_TEMPLATE % (path, self._APP, timestamp)
+ if self._token:
+ query += '&token=%s' % self._token
+ sig = hmac.new(
+ self._APP_SECRET.encode('ascii'),
+ query.encode('ascii'),
+ hashlib.sha1
+ ).hexdigest()
+ url = self._API_URL_TEMPLATE % (query, sig)
+ return sanitized_Request(
+ url, json.dumps(post_data).encode('utf-8')) if post_data else url
+
+ def _call_api(self, path, video_id, note, timestamp=None, post_data=None):
+ resp = self._download_json(
+ self._prepare_call(path, timestamp, post_data), video_id, note)
+
+ error = resp.get('error')
+ if error:
+ if error == 'invalid timestamp':
+ resp = self._download_json(
+ self._prepare_call(path, int(resp['current_timestamp']), post_data),
+ video_id, '%s (retry)' % note)
+ error = resp.get('error')
+ if error:
+ self._raise_error(resp['error'])
+
+ return resp
+
+ def _raise_error(self, error):
+ raise ExtractorError(
+ '%s returned error: %s' % (self.IE_NAME, error),
+ expected=True)
+
+ def _check_errors(self, data):
+ for reason, status in data.get('blocking', {}).items():
+ if status and reason in self._ERRORS:
+ raise ExtractorError('%s said: %s' % (
+ self.IE_NAME, self._ERRORS[reason]), expected=True)
+
+ def _real_initialize(self):
+ self._login()
+
+ def _login(self):
+ (username, password) = self._get_login_info()
+ if username is None:
+ return
+
+ login_form = {
+ 'login_id': username,
+ 'password': password,
+ }
+
+ login = self._call_api(
+ 'sessions.json', None,
+ 'Logging in as %s' % username, post_data=login_form)
+
+ self._token = login.get('token')
+ if not self._token:
+ self.report_warning('Unable to get session token, login has probably failed')
+
+ @staticmethod
+ def dict_selection(dict_obj, preferred_key, allow_fallback=True):
+ if preferred_key in dict_obj:
+ return dict_obj.get(preferred_key)
+
+ if not allow_fallback:
+ return