+
+ def _extract_cf_auth(self, webpage):
+ 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')
+ return {
+ 'Policy': policy,
+ 'Signature': signature,
+ 'Key-Pair-Id': key_pair_id,
+ }
+
+ def _extract_http_video(self, webpage):
+ http_video_url = self._search_regex(r'P\.s\s*=\s*\'([^\']+)\'', webpage, 'video URL')
+ http_video_url = update_url_query(http_video_url, self._extract_cf_auth(webpage))
+ return [{
+ 'format_id': 'http_video',
+ 'url': http_video_url,
+ }]
+
+ 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 []
+
+ return [{
+ 'format_id': 'http_audio',
+ 'url': http_audio_url,
+ 'vcodec': 'none',
+ }]
+
+ def _real_extract(self, url):
+ video_id = self._match_id(url)
+ webpage = self._download_webpage(url, video_id)
+
+ video_title = self._html_search_regex(r'<title>(.*?)</title>', webpage, 'title')
+ video_description = self._html_search_meta('description', webpage, 'description')
+
+ if '/cn/' in url:
+ # for China videos, HTTP video URL exists but always fails with 403
+ formats = self._extract_bokecc_formats(webpage, video_id)
+ else:
+ formats = (
+ self._extract_rtmp_video(webpage)
+ + self._extract_http_video(webpage)
+ + self._extract_http_audio(webpage, video_id))
+