yt-dlc/youtube_dl/extractor/alura.py

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2020-08-26 01:39:20 +00:00
# coding: utf-8
from __future__ import unicode_literals
import re
from .common import InfoExtractor
from ..compat import (
compat_str,
compat_urlparse,
)
from ..utils import (
dict_get,
ExtractorError,
float_or_none,
int_or_none,
parse_duration,
qualities,
srt_subtitles_timecode,
try_get,
update_url_query,
urlencode_postdata,
)
class AluraIE(InfoExtractor):
_VALID_URL = r'https?://(?:cursos\.)?alura\.com\.br/course/(?P<course_name>[^/]+)/task/(?P<id>\d+)'
_LOGIN_URL = 'https://cursos.alura.com.br/loginForm?urlAfterLogin=/loginForm'
_VIDEO_URL = 'https://cursos.alura.com.br/course/%s/task/%s/video'
_TEST = {
'url': 'https://cursos.alura.com.br/course/design-patterns-python/task/9651',
'md5': 'TODO: md5 sum of the first 10241 bytes of the video file (use --test)',
'info_dict': {
'id': '9651',
'ext': 'mp4',
'title': 'Video title goes here',
'thumbnail': r're:^https?://.*\.jpg$',
# TODO more properties, either as:
}
}
def _real_extract(self, url):
video_id = self._match_id(url)
course = self._search_regex(self._VALID_URL, url, 'post url', group='course_name')
video_url = self._VIDEO_URL % (course,video_id)
video_dict = self._download_json(video_url, None, 'Searching for videos', expected_status=[404,500])
if video_dict:
webpage = self._download_webpage(url, video_id)
video_title = self._search_regex(
r'<span[^>]+class=(["\'])task-body-header-title-text\1[^>]*>(?P<title>[^<]+)',
webpage, 'title', group='title')
formats = []
for video_obj in video_dict:
video_url_m3u8 = video_obj.get('link')
video_format = self._extract_m3u8_formats(
video_url_m3u8, None, 'mp4', entry_protocol='m3u8_native',
m3u8_id='hls', fatal=False)
formats.extend(video_format)
return {
'id': video_id,
'title': video_title,
"formats": formats
}
def extract_output_format(src):
return {
'url': src.get('link'),
'manifest_url': src.get('linkWebm'),
'format': src.get('quality')
}
def _real_initialize(self):
self._login()
def _login(self):
username, password = self._get_login_info()
if username is None:
return
pass
login_page = self._download_webpage(
self._LOGIN_URL, None, 'Downloading login popup')
def is_logged(webpage):
return any(re.search(p, webpage) for p in (
r'href=[\"|\']?/signout[\"|\']',
r'>Logout<'))
# already logged in
if is_logged(login_page):
return
login_form = self._hidden_inputs(login_page)
login_form.update({
'username': username,
'password': password,
})
post_url = self._search_regex(
r'<form[^>]+class=["|\']signin-form["|\'] action=["|\'](?P<url>.+?)["|\']', login_page,
'post url', default=self._LOGIN_URL, group='url')
if not post_url.startswith('http'):
post_url = compat_urlparse.urljoin(self._LOGIN_URL, post_url)
self._download_webpage(
post_url, None, 'Logging in',
data=urlencode_postdata(login_form),
headers={'Content-Type': 'application/x-www-form-urlencoded'})