youtube_dl/extractor/infoq.py

   1 from __future__ import unicode_literals
   2
   3 import base64
   4
   5 from .common import InfoExtractor
   6 from ..compat import (
   7     compat_urllib_parse,
   8 )
   9
  10
  11 class InfoQIE(InfoExtractor):
  12     _VALID_URL = r'https?://(?:www\.)?infoq\.com/[^/]+/(?P<id>[^/]+)$'
  13
  14     _TEST = {
  15         'url': 'http://www.infoq.com/presentations/A-Few-of-My-Favorite-Python-Things',
  16         'md5': 'b5ca0e0a8c1fed93b0e65e48e462f9a2',
  17         'info_dict': {
  18             'id': '12-jan-pythonthings',
  19             'ext': 'mp4',
  20             'description': 'Mike Pirnat presents some tips and tricks, standard libraries and third party packages that make programming in Python a richer experience.',
  21             'title': 'A Few of My Favorite [Python] Things',
  22         },
  23     }
  24
  25     def _real_extract(self, url):
  26         video_id = self._match_id(url)
  27         webpage = self._download_webpage(url, video_id)
  28
  29         video_title = self._html_search_regex(r'<title>(.*?)</title>', webpage, 'title')
  30         video_description = self._html_search_meta('description', webpage, 'description')
  31
  32         # The server URL is hardcoded
  33         video_url = 'rtmpe://video.infoq.com/cfx/st/'
  34
  35         # Extract video URL
  36         encoded_id = self._search_regex(
  37             r"jsclassref\s*=\s*'([^']*)'", webpage, 'encoded id')
  38         real_id = compat_urllib_parse.unquote(base64.b64decode(encoded_id.encode('ascii')).decode('utf-8'))
  39         playpath = 'mp4:' + real_id
  40
  41         video_filename = playpath.split('/')[-1]
  42         video_id, extension = video_filename.split('.')
  43
  44         http_base = self._search_regex(
  45             r'EXPRESSINSTALL_SWF\s*=\s*"(https?://[^/"]+/)', webpage,
  46             'HTTP base URL')
  47
  48         formats = [{
  49             'format_id': 'rtmp',
  50             'url': video_url,
  51             'ext': extension,
  52             'play_path': playpath,
  53         }, {
  54             'format_id': 'http',
  55             'url': http_base + real_id,
  56         }]
  57         self._sort_formats(formats)
  58
  59         return {
  60             'id': video_id,
  61             'title': video_title,
  62             'description': video_description,
  63             'formats': formats,
  64         }