X-Git-Url: https://git.rapsys.eu/youtubedl/blobdiff_plain/9815bb0a551468e4939cacfffbc2d5cb8dd12431..9865587cf7b579793ba274067c3e44065d5ff77d:/youtube_dl/extractor/infoq.py diff --git a/youtube_dl/extractor/infoq.py b/youtube_dl/extractor/infoq.py index 9056742..18249cf 100644 --- a/youtube_dl/extractor/infoq.py +++ b/youtube_dl/extractor/infoq.py @@ -1,50 +1,136 @@ -import base64 -import re +# coding: utf-8 -from .common import InfoExtractor -from ..utils import ( - compat_urllib_parse, +from __future__ import unicode_literals - ExtractorError, +from ..compat import ( + compat_b64decode, + compat_urllib_parse_unquote, + compat_urlparse, +) +from ..utils import ( + determine_ext, + update_url_query, ) +from .bokecc import BokeCCBaseIE -class InfoQIE(InfoExtractor): - _VALID_URL = r'^(?:https?://)?(?:www\.)?infoq\.com/[^/]+/[^/]+$' +class InfoQIE(BokeCCBaseIE): + _VALID_URL = r'https?://(?:www\.)?infoq\.com/(?:[^/]+/)+(?P[^/]+)' - def _real_extract(self, url): - mobj = re.match(self._VALID_URL, url) + _TESTS = [{ + 'url': 'http://www.infoq.com/presentations/A-Few-of-My-Favorite-Python-Things', + 'md5': 'b5ca0e0a8c1fed93b0e65e48e462f9a2', + 'info_dict': { + 'id': 'A-Few-of-My-Favorite-Python-Things', + 'ext': 'mp4', + 'description': 'Mike Pirnat presents some tips and tricks, standard libraries and third party packages that make programming in Python a richer experience.', + 'title': 'A Few of My Favorite [Python] Things', + }, + }, { + 'url': 'http://www.infoq.com/fr/presentations/changez-avis-sur-javascript', + 'only_matching': True, + }, { + 'url': 'http://www.infoq.com/cn/presentations/openstack-continued-delivery', + 'md5': '4918d0cca1497f2244572caf626687ef', + 'info_dict': { + 'id': 'openstack-continued-delivery', + 'title': 'OpenStack持续交付之路', + 'ext': 'flv', + 'description': 'md5:308d981fb28fa42f49f9568322c683ff', + }, + }, { + 'url': 'https://www.infoq.com/presentations/Simple-Made-Easy', + 'md5': '0e34642d4d9ef44bf86f66f6399672db', + 'info_dict': { + 'id': 'Simple-Made-Easy', + 'title': 'Simple Made Easy', + 'ext': 'mp3', + 'description': 'md5:3e0e213a8bbd074796ef89ea35ada25b', + }, + 'params': { + 'format': 'bestaudio', + }, + }] - webpage = self._download_webpage(url, video_id=url) - self.report_extraction(url) + def _extract_rtmp_video(self, webpage): + # The server URL is hardcoded + video_url = 'rtmpe://video.infoq.com/cfx/st/' # Extract video URL - mobj = re.search(r"jsclassref ?= ?'([^']*)'", webpage) - if mobj is None: - raise ExtractorError(u'Unable to extract video url') - real_id = compat_urllib_parse.unquote(base64.b64decode(mobj.group(1).encode('ascii')).decode('utf-8')) - video_url = 'rtmpe://video.infoq.com/cfx/st/' + real_id + encoded_id = self._search_regex( + r"jsclassref\s*=\s*'([^']*)'", webpage, 'encoded id', default=None) + + real_id = compat_urllib_parse_unquote(compat_b64decode(encoded_id).decode('utf-8')) + playpath = 'mp4:' + real_id + + return [{ + 'format_id': 'rtmp_video', + 'url': video_url, + 'ext': determine_ext(playpath), + 'play_path': playpath, + }] + + 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, + } - # Extract title - video_title = self._search_regex(r'contentTitle = "(.*?)";', - webpage, u'title') + 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, + }] - # Extract description - video_description = self._html_search_regex(r'', - webpage, u'description', fatal=False) + 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 [] - video_filename = video_url.split('/')[-1] - video_id, extension = video_filename.split('.') + # 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)) - info = { + # 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'(.*?)', 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)) + + self._sort_formats(formats) + + return { 'id': video_id, - 'url': video_url, - 'uploader': None, - 'upload_date': None, 'title': video_title, - 'ext': extension, # Extension is always(?) mp4, but seems to be flv - 'thumbnail': None, 'description': video_description, + 'formats': formats, } - - return [info] \ No newline at end of file