- policy = self._search_regex(r'InfoQConstants.scp\s*=\s*\'([^\']+)\'', webpage, 'policy')
- signature = self._search_regex(r'InfoQConstants.scs\s*=\s*\'([^\']+)\'', webpage, 'signature')
- key_pair_id = self._search_regex(r'InfoQConstants.sck\s*=\s*\'([^\']+)\'', webpage, 'key-pair-id')
+ def _extract_http_audio(self, webpage, video_id):
+ fields = self._hidden_inputs(webpage)
+ http_audio_url = fields.get('filename')
+ if not http_audio_url:
+ return []
+
+ # base URL is found in the Location header in the response returned by
+ # GET https://www.infoq.com/mp3download.action?filename=... when logged in.
+ http_audio_url = compat_urlparse.urljoin('http://res.infoq.com/downloads/mp3downloads/', http_audio_url)
+ http_audio_url = update_url_query(http_audio_url, self._extract_cf_auth(webpage))
+
+ # audio file seem to be missing some times even if there is a download link
+ # so probe URL to make sure
+ if not self._is_valid_url(http_audio_url, video_id):
+ return []