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mirror of https://github.com/l1ving/youtube-dl synced 2024-12-23 15:43:00 +08:00
youtube-dl/youtube_dl/extractor/gdcvault.py
2014-07-25 10:45:07 +02:00

167 lines
6.2 KiB
Python

from __future__ import unicode_literals
import re
from .common import InfoExtractor
from ..utils import (
compat_urllib_parse,
compat_urllib_request,
)
class GDCVaultIE(InfoExtractor):
_VALID_URL = r'https?://(?:www\.)?gdcvault\.com/play/(?P<id>\d+)/(?P<name>(\w|-)+)'
_TESTS = [
{
'url': 'http://www.gdcvault.com/play/1019721/Doki-Doki-Universe-Sweet-Simple',
'md5': '7ce8388f544c88b7ac11c7ab1b593704',
'info_dict': {
'id': '1019721',
'ext': 'mp4',
'title': 'Doki-Doki Universe: Sweet, Simple and Genuine (GDC Next 10)'
}
},
{
'url': 'http://www.gdcvault.com/play/1015683/Embracing-the-Dark-Art-of',
'info_dict': {
'id': '1015683',
'ext': 'flv',
'title': 'Embracing the Dark Art of Mathematical Modeling in AI'
},
'params': {
'skip_download': True, # Requires rtmpdump
}
},
{
'url': 'http://www.gdcvault.com/play/1015301/Thexder-Meets-Windows-95-or',
'md5': 'a5eb77996ef82118afbbe8e48731b98e',
'info_dict': {
'id': '1015301',
'ext': 'flv',
'title': 'Thexder Meets Windows 95, or Writing Great Games in the Windows 95 Environment',
}
}
]
def _parse_mp4(self, xml_description):
video_formats = []
mp4_video = xml_description.find('./metadata/mp4video')
if mp4_video is None:
return None
mobj = re.match(r'(?P<root>https?://.*?/).*', mp4_video.text)
video_root = mobj.group('root')
formats = xml_description.findall('./metadata/MBRVideos/MBRVideo')
for format in formats:
mobj = re.match(r'mp4\:(?P<path>.*)', format.find('streamName').text)
url = video_root + mobj.group('path')
vbr = format.find('bitrate').text
video_formats.append({
'url': url,
'vbr': int(vbr),
})
return video_formats
def _parse_flv(self, xml_description):
video_formats = []
akami_url = xml_description.find('./metadata/akamaiHost').text
slide_video_path = xml_description.find('./metadata/slideVideo').text
video_formats.append({
'url': 'rtmp://' + akami_url + '/' + slide_video_path,
'format_note': 'slide deck video',
'quality': -2,
'preference': -2,
'format_id': 'slides',
})
speaker_video_path = xml_description.find('./metadata/speakerVideo').text
video_formats.append({
'url': 'rtmp://' + akami_url + '/' + speaker_video_path,
'format_note': 'speaker video',
'quality': -1,
'preference': -1,
'format_id': 'speaker',
})
return video_formats
def _login(self, webpage_url, video_id):
(username, password) = self._get_login_info()
if username is None or password is None:
self.report_warning('It looks like ' + webpage_url + ' requires a login. Try specifying a username and password and try again.')
return None
mobj = re.match(r'(?P<root_url>https?://.*?/).*', webpage_url)
login_url = mobj.group('root_url') + 'api/login.php'
logout_url = mobj.group('root_url') + 'logout'
login_form = {
'email': username,
'password': password,
}
request = compat_urllib_request.Request(login_url, compat_urllib_parse.urlencode(login_form))
request.add_header('Content-Type', 'application/x-www-form-urlencoded')
self._download_webpage(request, video_id, 'Logging in')
start_page = self._download_webpage(webpage_url, video_id, 'Getting authenticated video page')
self._download_webpage(logout_url, video_id, 'Logging out')
return start_page
def _real_extract(self, url):
mobj = re.match(self._VALID_URL, url)
video_id = mobj.group('id')
webpage_url = 'http://www.gdcvault.com/play/' + video_id
start_page = self._download_webpage(webpage_url, video_id)
direct_url = self._search_regex(
r's1\.addVariable\("file",\s*encodeURIComponent\("(/[^"]+)"\)\);',
start_page, 'url', default=None)
if direct_url:
video_url = 'http://www.gdcvault.com/' + direct_url
title = self._html_search_regex(
r'<td><strong>Session Name</strong></td>\s*<td>(.*?)</td>',
start_page, 'title')
return {
'id': video_id,
'url': video_url,
'ext': 'flv',
'title': title,
}
xml_root = self._html_search_regex(
r'<iframe src="(?P<xml_root>.*?)player.html.*?".*?</iframe>',
start_page, 'xml root', default=None)
if xml_root is None:
# Probably need to authenticate
login_res = self._login(webpage_url, video_id)
if login_res is None:
self.report_warning('Could not login.')
else:
start_page = login_res
# Grab the url from the authenticated page
xml_root = self._html_search_regex(
r'<iframe src="(.*?)player.html.*?".*?</iframe>',
start_page, 'xml root')
xml_name = self._html_search_regex(
r'<iframe src=".*?\?xml=(.+?\.xml).*?".*?</iframe>',
start_page, 'xml filename', default=None)
if xml_name is None:
# Fallback to the older format
xml_name = self._html_search_regex(r'<iframe src=".*?\?xmlURL=xml/(?P<xml_file>.+?\.xml).*?".*?</iframe>', start_page, 'xml filename')
xml_decription_url = xml_root + 'xml/' + xml_name
xml_description = self._download_xml(xml_decription_url, video_id)
video_title = xml_description.find('./metadata/title').text
video_formats = self._parse_mp4(xml_description)
if video_formats is None:
video_formats = self._parse_flv(xml_description)
return {
'id': video_id,
'title': video_title,
'formats': video_formats,
}