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# coding: utf-8
from __future__ import unicode_literals
import re
from datetime import datetime
from .common import InfoExtractor
from ..utils import determine_ext, ExtractorError
class JoveIE(InfoExtractor):
_VALID_URL = r'https?://(?:www\.)?jove\.com/video/(?P<id>[0-9]+)'
_CHAPTERS_URL = 'http://www.jove.com/video-chapters?videoid={video_id:}'
_TEST = {
'url': 'http://www.jove.com/video/2744/electrode-positioning-montage-transcranial-direct-current',
'md5': '93723888d82dbd6ba8b3d7d0cd65dd2b',
'info_dict': {
'id': '2744',
'ext': 'mp4',
'title': 'Electrode Positioning and Montage in Transcranial Direct Current Stimulation',
'description': 'Transcranial direct current stimulation (tDCS) is an established technique to modulate cortical excitability1,2. It has been ...',
'thumbnail': 're:^https?://.*\.png$',
'upload_date': '20110523',
}
}
def _real_extract(self, url):
mobj = re.match(self._VALID_URL, url)
video_id = mobj.group('id')
webpage = self._download_webpage(url, video_id)
title = self._html_search_meta('citation_title', webpage, 'title')
thumbnail = self._og_search_thumbnail(webpage)
description = self._html_search_meta(
'description', webpage, 'description', fatal=False)
publish_date = self._html_search_meta(
'citation_publication_date', webpage, 'publish date', fatal=False)
if publish_date:
publish_date = datetime.strptime(publish_date,
'%Y/%m/%d').strftime('%Y%m%d')
# Not the same as video_id.
chapters_id = self._html_search_regex(
r'/video-chapters\?videoid=([0-9]+)', webpage, 'chapters id')
chapters_xml = self._download_xml(
self._CHAPTERS_URL.format(video_id=chapters_id),
video_id, note='Downloading chapter XML',
errnote='Failed to download chapter XML'
)
video_url = chapters_xml.attrib.get('video')
if not video_url:
raise ExtractorError('Failed to get the video URL')
ext = determine_ext(video_url)
return {
'id': video_id,
'title': title,
'url': video_url,
'ext': ext,
'thumbnail': thumbnail,
'description': description,
'upload_date': publish_date,
}
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