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path: root/youtube_dl/extractor/livestream.py
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import re
import json
import xml.etree.ElementTree

from .common import InfoExtractor
from ..utils import (
    compat_urllib_parse_urlparse,
    compat_urlparse,
    xpath_with_ns,
)


class LivestreamIE(InfoExtractor):
    IE_NAME = u'livestream'
    _VALID_URL = r'http://new.livestream.com/.*?/(?P<event_name>.*?)(/videos/(?P<id>\d+))?/?$'
    _TEST = {
        u'url': u'http://new.livestream.com/CoheedandCambria/WebsterHall/videos/4719370',
        u'file': u'4719370.mp4',
        u'md5': u'0d2186e3187d185a04b3cdd02b828836',
        u'info_dict': {
            u'title': u'Live from Webster Hall NYC',
            u'upload_date': u'20121012',
        }
    }

    def _extract_video_info(self, video_data):
        video_url = video_data.get('progressive_url_hd') or video_data.get('progressive_url')
        return {'id': video_data['id'],
                'url': video_url,
                'ext': 'mp4',
                'title': video_data['caption'],
                'thumbnail': video_data['thumbnail_url'],
                'upload_date': video_data['updated_at'].replace('-','')[:8],
                }

    def _real_extract(self, url):
        mobj = re.match(self._VALID_URL, url)
        video_id = mobj.group('id')
        event_name = mobj.group('event_name')
        webpage = self._download_webpage(url, video_id or event_name)

        if video_id is None:
            # This is an event page:
            config_json = self._search_regex(r'window.config = ({.*?});',
                webpage, u'window config')
            info = json.loads(config_json)['event']
            videos = [self._extract_video_info(video_data['data'])
                for video_data in info['feed']['data'] if video_data['type'] == u'video']
            return self.playlist_result(videos, info['id'], info['full_name'])
        else:
            og_video = self._og_search_video_url(webpage, name=u'player url')
            query_str = compat_urllib_parse_urlparse(og_video).query
            query = compat_urlparse.parse_qs(query_str)
            api_url = query['play_url'][0].replace('.smil', '')
            info = json.loads(self._download_webpage(api_url, video_id,
                                                     u'Downloading video info'))
            return self._extract_video_info(info)


# The original version of Livestream uses a different system
class LivestreamOriginalIE(InfoExtractor):
    IE_NAME = u'livestream:original'
    _VALID_URL = r'https?://www\.livestream\.com/(?P<user>[^/]+)/video\?.*?clipId=(?P<id>.*?)(&|$)'
    _TEST = {
        u'url': u'http://www.livestream.com/dealbook/video?clipId=pla_8aa4a3f1-ba15-46a4-893b-902210e138fb',
        u'info_dict': {
            u'id': u'pla_8aa4a3f1-ba15-46a4-893b-902210e138fb',
            u'ext': u'flv',
            u'title': u'Spark 1 (BitCoin) with Cameron Winklevoss & Tyler Winklevoss of Winklevoss Capital',
        },
        u'params': {
            # rtmp
            u'skip_download': True,
        },
    }

    def _real_extract(self, url):
        mobj = re.match(self._VALID_URL, url)
        video_id = mobj.group('id')
        user = mobj.group('user')
        api_url = 'http://x{0}x.api.channel.livestream.com/2.0/clipdetails?extendedInfo=true&id={1}'.format(user, video_id)

        api_response = self._download_webpage(api_url, video_id)
        info = xml.etree.ElementTree.fromstring(api_response.encode('utf-8'))
        item = info.find('channel').find('item')
        ns = {'media': 'http://search.yahoo.com/mrss'}
        thumbnail_url = item.find(xpath_with_ns('media:thumbnail', ns)).attrib['url']
        # Remove the extension and number from the path (like 1.jpg)
        path = self._search_regex(r'(user-files/.+)_.*?\.jpg$', thumbnail_url, u'path')

        return {
            'id': video_id,
            'title': item.find('title').text,
            'url': 'rtmp://extondemand.livestream.com/ondemand',
            'play_path': 'mp4:trans/dv15/mogulus-{0}.mp4'.format(path),
            'ext': 'flv',
            'thumbnail': thumbnail_url,
        }