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115 lines
4.8 KiB
Python
115 lines
4.8 KiB
Python
from __future__ import unicode_literals
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from .common import InfoExtractor
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from ..utils import (
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find_xpath_attr,
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int_or_none,
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js_to_json,
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unescapeHTML,
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)
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class HowStuffWorksIE(InfoExtractor):
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_VALID_URL = r'https?://[\da-z-]+\.howstuffworks\.com/(?:[^/]+/)*(?:\d+-)?(?P<id>.+?)-video\.htm'
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_TESTS = [
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{
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'url': 'http://adventure.howstuffworks.com/5266-cool-jobs-iditarod-musher-video.htm',
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'info_dict': {
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'id': '450221',
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'ext': 'flv',
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'title': 'Cool Jobs - Iditarod Musher',
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'description': 'Cold sleds, freezing temps and warm dog breath... an Iditarod musher\'s dream. Kasey-Dee Gardner jumps on a sled to find out what the big deal is.',
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'display_id': 'cool-jobs-iditarod-musher',
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'thumbnail': 're:^https?://.*\.jpg$',
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'duration': 161,
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},
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},
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{
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'url': 'http://adventure.howstuffworks.com/7199-survival-zone-food-and-water-in-the-savanna-video.htm',
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'info_dict': {
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'id': '453464',
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'ext': 'mp4',
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'title': 'Survival Zone: Food and Water In the Savanna',
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'description': 'Learn how to find both food and water while trekking in the African savannah. In this video from the Discovery Channel.',
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'display_id': 'survival-zone-food-and-water-in-the-savanna',
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'thumbnail': 're:^https?://.*\.jpg$',
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},
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},
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{
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'url': 'http://entertainment.howstuffworks.com/arts/2706-sword-swallowing-1-by-dan-meyer-video.htm',
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'info_dict': {
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'id': '440011',
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'ext': 'flv',
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'title': 'Sword Swallowing #1 by Dan Meyer',
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'description': 'Video footage (1 of 3) used by permission of the owner Dan Meyer through Sword Swallowers Association International <www.swordswallow.org>',
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'display_id': 'sword-swallowing-1-by-dan-meyer',
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'thumbnail': 're:^https?://.*\.jpg$',
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},
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},
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{
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'url': 'http://shows.howstuffworks.com/stuff-to-blow-your-mind/optical-illusions-video.htm',
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'info_dict': {
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'id': '855410',
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'ext': 'mp4',
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'title': 'Stuff to Blow Your Mind',
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'description': 'When it comes to optical illusions it’s pretty easy to jailbreak the operating system of your mind and load a new program onto it. Find out why your visual system willingly makes errors in interpretation.',
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'display_id': 'optical-illusions',
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'thumbnail': 're:^https?://.*\.jpg$',
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},
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}
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]
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def _real_extract(self, url):
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display_id = self._match_id(url)
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webpage = self._download_webpage(url, display_id)
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clip_js = self._search_regex(
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r'(?s)var clip = ({.*?});', webpage, 'clip info')
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clip_info = self._parse_json(
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clip_js, display_id, transform_source=js_to_json)
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video_id = clip_info['content_id']
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formats = []
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m3u8_url = clip_info.get('m3u8')
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if m3u8_url:
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formats += self._extract_m3u8_formats(m3u8_url, video_id, 'mp4')
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for video in clip_info.get('mp4', []):
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formats.append({
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'url': video['src'],
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'format_id': video['bitrate'],
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'vbr': int(video['bitrate'].rstrip('k')),
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})
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if not formats:
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smil = self._download_xml(
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'http://services.media.howstuffworks.com/videos/%s/smil-service.smil' % video_id,
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video_id, 'Downloading video SMIL')
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http_base = find_xpath_attr(
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smil,
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'./{0}head/{0}meta'.format('{http://www.w3.org/2001/SMIL20/Language}'),
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'name',
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'httpBase').get('content')
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URL_SUFFIX = '?v=2.11.3&fp=LNX 11,2,202,356&r=A&g=A'
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for video in smil.findall(
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'./{0}body/{0}switch/{0}video'.format('{http://www.w3.org/2001/SMIL20/Language}')):
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vbr = int_or_none(video.attrib['system-bitrate'], scale=1000)
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formats.append({
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'url': '%s/%s%s' % (http_base, video.attrib['src'], URL_SUFFIX),
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'format_id': '%dk' % vbr,
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'vbr': vbr,
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})
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self._sort_formats(formats)
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return {
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'id': '%s' % video_id,
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'display_id': display_id,
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'title': unescapeHTML(clip_info['clip_title']),
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'description': unescapeHTML(clip_info.get('caption')),
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'thumbnail': clip_info.get('video_still_url'),
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'duration': clip_info.get('duration'),
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'formats': formats,
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}
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