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|
import json
import re
from .common import InfoExtractor
class TEDIE(InfoExtractor):
_VALID_URL=r'''http://www\.ted\.com/
(
((?P<type_playlist>playlists)/(?P<playlist_id>\d+)) # We have a playlist
|
((?P<type_talk>talks)) # We have a simple talk
)
(/lang/(.*?))? # The url may contain the language
/(?P<name>\w+) # Here goes the name and then ".html"
'''
_TEST = {
u'url': u'http://www.ted.com/talks/dan_dennett_on_our_consciousness.html',
u'file': u'102.mp4',
u'md5': u'2d76ee1576672e0bd8f187513267adf6',
u'info_dict': {
u"description": u"md5:c6fa72e6eedbd938c9caf6b2702f5922",
u"title": u"Dan Dennett: The illusion of consciousness"
}
}
@classmethod
def suitable(cls, url):
"""Receives a URL and returns True if suitable for this IE."""
return re.match(cls._VALID_URL, url, re.VERBOSE) is not None
def _real_extract(self, url):
m=re.match(self._VALID_URL, url, re.VERBOSE)
if m.group('type_talk'):
return [self._talk_info(url)]
else :
playlist_id=m.group('playlist_id')
name=m.group('name')
self.to_screen(u'Getting info of playlist %s: "%s"' % (playlist_id,name))
return [self._playlist_videos_info(url,name,playlist_id)]
def _playlist_videos_info(self,url,name,playlist_id=0):
'''Returns the videos of the playlist'''
video_RE=r'''
<li\ id="talk_(\d+)"([.\s]*?)data-id="(?P<video_id>\d+)"
([.\s]*?)data-playlist_item_id="(\d+)"
([.\s]*?)data-mediaslug="(?P<mediaSlug>.+?)"
'''
video_name_RE=r'<p\ class="talk-title"><a href="(?P<talk_url>/talks/(.+).html)">(?P<fullname>.+?)</a></p>'
webpage=self._download_webpage(url, playlist_id, 'Downloading playlist webpage')
m_videos=re.finditer(video_RE,webpage,re.VERBOSE)
m_names=re.finditer(video_name_RE,webpage)
playlist_title = self._html_search_regex(r'div class="headline">\s*?<h1>\s*?<span>(.*?)</span>',
webpage, 'playlist title')
playlist_entries = []
for m_video, m_name in zip(m_videos,m_names):
talk_url='http://www.ted.com%s' % m_name.group('talk_url')
playlist_entries.append(self.url_result(talk_url, 'TED'))
return self.playlist_result(playlist_entries, playlist_id = playlist_id, playlist_title = playlist_title)
def _talk_info(self, url, video_id=0):
"""Return the video for the talk in the url"""
m = re.match(self._VALID_URL, url,re.VERBOSE)
video_name = m.group('name')
webpage = self._download_webpage(url, video_id, 'Downloading \"%s\" page' % video_name)
self.report_extraction(video_name)
# If the url includes the language we get the title translated
title = self._html_search_regex(r'<span .*?id="altHeadline".+?>(?P<title>.*)</span>',
webpage, 'title')
json_data = self._search_regex(r'<script.*?>var talkDetails = ({.*?})</script>',
webpage, 'json data')
info = json.loads(json_data)
desc = self._html_search_regex(r'<div class="talk-intro">.*?<p.*?>(.*?)</p>',
webpage, 'description', flags = re.DOTALL)
thumbnail = self._search_regex(r'</span>[\s.]*</div>[\s.]*<img src="(.*?)"',
webpage, 'thumbnail')
info = {
'id': info['id'],
'url': info['htmlStreams'][-1]['file'],
'ext': 'mp4',
'title': title,
'thumbnail': thumbnail,
'description': desc,
}
return info
|
