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from HTMLParser import HTMLParser
import json
import re
from urlparse import urljoin
from .common import InfoExtractor
class UstreamIE(InfoExtractor):
_VALID_URL = r'https?://www\.ustream\.tv/recorded/(?P<videoID>\d+)'
IE_NAME = u'ustream'
_TEST = {
u'url': u'http://www.ustream.tv/recorded/20274954',
u'file': u'20274954.flv',
u'md5': u'088f151799e8f572f84eb62f17d73e5c',
u'info_dict': {
u"uploader": u"Young Americans for Liberty",
u"title": u"Young Americans for Liberty February 7, 2012 2:28 AM"
}
}
def _real_extract(self, url):
m = re.match(self._VALID_URL, url)
video_id = m.group('videoID')
video_url = u'http://tcdn.ustream.tv/video/%s' % video_id
webpage = self._download_webpage(url, video_id)
self.report_extraction(video_id)
video_title = self._html_search_regex(r'data-title="(?P<title>.+)"',
webpage, u'title')
uploader = self._html_search_regex(r'data-content-type="channel".*?>(?P<uploader>.*?)</a>',
webpage, u'uploader', fatal=False, flags=re.DOTALL)
thumbnail = self._html_search_regex(r'<link rel="image_src" href="(?P<thumb>.*?)"',
webpage, u'thumbnail', fatal=False)
info = {
'id': video_id,
'url': video_url,
'ext': 'flv',
'title': video_title,
'uploader': uploader,
'thumbnail': thumbnail,
}
return info
# More robust than regular expressions
class ChannelParser(HTMLParser):
"""
<meta name="ustream:channel_id" content="1234">
"""
channel_id = None
def handle_starttag(self, tag, attrs):
if tag != 'meta':
return
values = dict(attrs)
if values.get('name') != 'ustream:channel_id':
return
value = values.get('content', '')
if value.isdigit():
self.channel_id = value
class SocialstreamParser(HTMLParser):
"""
<li class="content123 video" data-content-id="123" data-length="1452"
data-href="/recorded/123" data-og-url="/recorded/123">
"""
def __init__(self):
HTMLParser.__init__(self)
self.content_ids = []
def handle_starttag(self, tag, attrs):
if tag != 'li':
return
for (attr, value) in attrs:
if attr == 'data-content-id' and value.isdigit():
self.content_ids.append(value)
class UstreamChannelIE(InfoExtractor):
_VALID_URL = r'https?://www\.ustream\.tv/channel/(?P<slug>.+)'
IE_NAME = u'ustream:channel'
def _real_extract(self, url):
m = re.match(self._VALID_URL, url)
slug = m.group('slug')
# Slugs can be non-ascii, but youtube-dl can't handle non-ascii command lines,
# so if we got this far it's probably percent encoded and we needn't worry.
p = ChannelParser()
p.feed(self._download_webpage(url, slug))
p.close()
channel_id = p.channel_id
p = SocialstreamParser()
BASE = 'http://www.ustream.tv'
next_url = '/ajax/socialstream/videos/%s/1.json' % channel_id
while next_url:
reply = json.loads(self._download_webpage(urljoin(BASE, next_url), channel_id))
p.feed(reply['data'])
next_url = reply['nextUrl']
p.close()
video_ids = p.content_ids
# From YoutubeChannelIE
self._downloader.to_screen(u'[ustream] Channel %s: Found %i videos' % (channel_id, len(video_ids)))
urls = ['http://www.ustream.tv/recorded/' + vid for vid in video_ids]
url_entries = [self.url_result(eurl, 'Ustream') for eurl in urls]
return [self.playlist_result(url_entries, channel_id)]
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