[howstuffworks] Add extractor (#3500)
Content-length is invalid for final download links.
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Sergey M․
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2 changed files with 135 additions and 0 deletions
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@ -126,6 +126,7 @@ from .helsinki import HelsinkiIE
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from .hentaistigma import HentaiStigmaIE
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from .hotnewhiphop import HotNewHipHopIE
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from .howcast import HowcastIE
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from .howstuffworks import HowStuffWorksIE
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from .huffpost import HuffPostIE
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from .hypem import HypemIE
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from .iconosquare import IconosquareIE
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134
youtube_dl/extractor/howstuffworks.py
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134
youtube_dl/extractor/howstuffworks.py
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@ -0,0 +1,134 @@
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from __future__ import unicode_literals
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import re
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import json
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import random
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import string
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from .common import InfoExtractor
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from ..utils import find_xpath_attr
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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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'display_id': 'cool-jobs-iditarod-musher',
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'ext': 'flv',
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'title': 'Cool Jobs - Iditarod Musher',
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'description': 'md5:82bb58438a88027b8186a1fccb365f90',
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'thumbnail': 're:^https?://.*\.jpg$',
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},
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'params': {
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# md5 is not consistent
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'skip_download': True
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}
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},
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{
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'url': 'http://adventure.howstuffworks.com/39516-deadliest-catch-jakes-farewell-pots-video.htm',
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'info_dict': {
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'id': '553470',
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'display_id': 'deadliest-catch-jakes-farewell-pots',
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'ext': 'mp4',
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'title': 'Deadliest Catch: Jake\'s Farewell Pots',
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'description': 'md5:9632c346d5e43ee238028c9cefd8dbbc',
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'thumbnail': 're:^https?://.*\.jpg$',
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},
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'params': {
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# md5 is not consistent
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'skip_download': True
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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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'display_id': 'sword-swallowing-1-by-dan-meyer',
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'ext': 'flv',
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'title': 'Sword Swallowing #1 by Dan Meyer',
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'description': 'md5:b2409e88172913e2e7d3d1159b0ef735',
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'thumbnail': 're:^https?://.*\.jpg$',
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},
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'params': {
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# md5 is not consistent
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'skip_download': True
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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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mobj = re.match(self._VALID_URL, url)
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display_id = mobj.group('id')
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webpage = self._download_webpage(url, display_id)
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content_id = self._search_regex(r'var siteSectionId="(\d+)";', webpage, 'content id')
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mp4 = self._search_regex(
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r'''(?xs)var\s+clip\s*=\s*{\s*
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.+?\s*
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content_id\s*:\s*%s\s*,\s*
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.+?\s*
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mp4\s*:\s*\[(.*?),?\]\s*
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};\s*
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videoData\.push\(clip\);''' % content_id,
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webpage, 'mp4', fatal=False, default=None)
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smil = self._download_xml(
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'http://services.media.howstuffworks.com/videos/%s/smil-service.smil' % content_id,
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content_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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def random_string(str_len=0):
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return ''.join([random.choice(string.ascii_uppercase) for _ in range(str_len)])
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URL_SUFFIX = '?v=2.11.3&fp=LNX 11,2,202,356&r=%s&g=%s' % (random_string(5), random_string(12))
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formats = []
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if mp4:
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for video in json.loads('[%s]' % mp4):
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bitrate = video['bitrate']
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fmt = {
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'url': video['src'].replace('http://pmd.video.howstuffworks.com', http_base) + URL_SUFFIX,
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'format_id': bitrate,
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}
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m = re.search(r'(?P<vbr>\d+)[Kk]', bitrate)
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if m:
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fmt['vbr'] = int(m.group('vbr'))
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formats.append(fmt)
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else:
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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(video.attrib['system-bitrate']) / 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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title = self._og_search_title(webpage)
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TITLE_SUFFIX = ' : HowStuffWorks'
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if title.endswith(TITLE_SUFFIX):
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title = title[:-len(TITLE_SUFFIX)]
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description = self._og_search_description(webpage)
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thumbnail = self._og_search_thumbnail(webpage)
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return {
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'id': content_id,
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'display_id': display_id,
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'title': title,
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'description': description,
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'thumbnail': thumbnail,
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'formats': formats,
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}
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