# coding: utf-8
from __future__ import unicode_literals
from .common import InfoExtractor
from ..compat import (
compat_kwargs,
compat_str,
compat_urllib_parse_urlparse,
)
from ..utils import (
clean_html,
dict_get,
ExtractorError,
get_element_by_class,
int_or_none,
parse_iso8601,
str_or_none,
strip_or_none,
try_get,
url_or_none,
urlencode_postdata,
urljoin,
)
class PlatziBaseIE(InfoExtractor):
_LOGIN_URL = 'https://platzi.com/login/'
_NETRC_MACHINE = 'platzi'
def _real_initialize(self):
self._login()
def _login(self):
username, password = self._get_login_info()
if username is None:
return
login_page = self._download_webpage(
self._LOGIN_URL, None, 'Downloading login page')
login_form = self._hidden_inputs(login_page)
login_form.update({
'email': username,
'password': password,
})
urlh = self._request_webpage(
self._LOGIN_URL, None, 'Logging in',
data=urlencode_postdata(login_form),
headers={'Referer': self._LOGIN_URL})
# login succeeded
if 'platzi.com/login' not in urlh.geturl():
return
login_error = self._webpage_read_content(
urlh, self._LOGIN_URL, None, 'Downloading login error page')
login = self._parse_json(
self._search_regex(
r'login\s*=\s*({.+?})(?:\s*;|\s*</script)', login_error, 'login'),
None)
for kind in ('error', 'password', 'nonFields'):
error = str_or_none(login.get('%sError' % kind))
if error:
raise ExtractorError(
'Unable to login: %s' % error, expected=True)
raise ExtractorError('Unable to log in')
class PlatziIE(PlatziBaseIE):
_VALID_URL = r'''(?x)
https?://
(?:
platzi\.com/clases| # es version
courses\.platzi\.com/classes # en version
)/[^/]+/(?P<id>\d+)-[^/?\#&]+
'''
_TESTS = [{
'url': 'https://platzi.com/clases/1927-intro-selenium/29383-bienvenida-al-curso',
'md5': '0af120f1ffd18a2246f19099d52b83e2',
'info_dict': {
'id': '29383',
'ext': 'mp4',
'title': 'Por qué aprender Selenium y qué verás',
'description': 'md5:bbe91d2760052ca4054a3149a6580436',
'timestamp': 1627400390,
'upload_date': '20210727',
'creator': 'Héctor Vega',
'series': 'Curso de Introducción a Selenium con Python',
'duration': 11700,
'categories': list,
},
'params': {
'format': 'bestvideo',
# 'skip_download': True,
},
'expected_warnings': ['HTTP Error 401']
}, {
'url': 'https://platzi.com/clases/1311-next-js/12074-creando-nuestra-primera-pagina/',
'md5': '8f56448241005b561c10f11a595b37e3',
'info_dict': {
'id': '12074',
'ext': 'mp4',
'title': 'Creando nuestra primera página',
'description': 'md5:4c866e45034fc76412fbf6e60ae008bc',
'duration': 420,
},
'skip': 'Content expired',
}, {
'url': 'https://courses.platzi.com/classes/1367-communication-codestream/13430-background/',
'info_dict': {
'id': '13430',
'ext': 'mp4',
'title': 'Background',
'description': 'md5:49c83c09404b15e6e71defaf87f6b305',
'duration': 360,
},
'skip': 'Content expired',
}]
def _download_webpage_handle(self, url_or_request, video_id, *args, **kwargs):
# CF likes Connection: keep-alive and so disfavours Py2
# retry on 403 may get in
kwargs['expected_status'] = 403
x = super(PlatziIE, self)._download_webpage_handle(url_or_request, video_id, *args, **kwargs)
if x is not False and x[1].getcode() == 403:
kwargs.pop('expected_status', None)
note = kwargs.pop('note', '')
kwargs['note'] = (note or 'Downloading webpage') + ' - retrying'
x = super(PlatziIE, self)._download_webpage_handle(url_or_request, video_id, *args, **kwargs)
return x
def _real_extract(self, url):
lecture_id = self._match_id(url)
# header parameters required fpor Py3 to breach site's CF fence w/o 403
headers = {
'User-Agent': 'Mozilla/5.0', # (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.0.0 Safari/537.36',
}
webpage, urlh = self._download_webpage_handle(url, lecture_id, headers=headers)
if compat_urllib_parse_urlparse(urlh.geturl()).path == '/':
raise ExtractorError(
'Redirected to home page: content expired?', expected=True)
data_preloaded_state = self._parse_json(
self._search_regex(
(r'window\s*.\s*__PRELOADED_STATE__\s*=\s*({.*?});?\s*</script'), webpage, 'client data'),
lecture_id)
video_player = try_get(data_preloaded_state, lambda x: x['videoPlayer'], dict) or {}
title = strip_or_none(video_player.get('name')) or self._og_search_title(webpage)
servers = try_get(video_player, lambda x: x['video']['servers'], dict) or {}
if not servers and try_get(video_player, lambda x: x['blockedInfo']['blocked']):
why = video_player['blockedInfo'].get('type') or 'unspecified'
if why == 'unlogged':
self.raise_login_required()
raise ExtractorError(
'All video formats blocked because ' + why, expected=True)
formats = []
headers['Referer'] = url
extractions = {
'hls': lambda x: formats.extend(self._extract_m3u8_formats(
server_json[x], lecture_id, 'mp4',
entry_protocol='m3u8_native', m3u8_id='hls',
note='Downloading %s m3u8 information' % (server_json.get('id', x), ),
headers=headers, fatal=False)),
'dash': lambda x: formats.extend(self._extract_mpd_formats(
server_json[x], lecture_id, mpd_id='dash',
note='Downloading %s MPD manifest' % (server_json.get('id', x), ),
headers=headers, fatal=False)),
}
for server, server_json in servers.items():
if not isinstance(server_json, dict):
continue
for fmt in server_json.keys():
extraction = extractions.get(fmt)
if callable(extraction):
extraction(fmt)
self._sort_formats(formats)
for f in formats:
f.setdefault('http_headers', {})['Referer'] = headers['Referer']
def categories():
cat = strip_or_none(video_player.get('courseCategory'))
if cat:
return [cat]
return {
'id': lecture_id,
'title': title,
'description': clean_html(video_player.get('courseDescription')) or self._og_search_description(webpage),
'duration': int_or_none(video_player.get('duration'), invscale=60),
'thumbnail': url_or_none(video_player.get('thumbnail')) or self._og_search_thumbnail(webpage),
'timestamp': parse_iso8601(dict_get(video_player, ('dateModified', 'datePublished'))),
'creator': strip_or_none(video_player.get('teacherName')) or clean_html(get_element_by_class('TeacherDetails-name', webpage)),
'comment_count': int_or_none(video_player.get('commentsNumber')),
'categories': categories(),
'series': strip_or_none(video_player.get('courseTitle')) or None,
'formats': formats,
}
class PlatziCourseIE(PlatziBaseIE):
_VALID_URL = r'''(?x)
https?://
(?:
platzi\.com/clases| # es version
courses\.platzi\.com/classes # en version
)/(?P<id>[^/?\#&]+)
'''
_TESTS = [{
'url': 'https://platzi.com/clases/next-js/',
'info_dict': {
'id': '1311',
'title': 'Curso de Next.js',
},
'playlist_count': 22,
}, {
'url': 'https://courses.platzi.com/classes/communication-codestream/',
'info_dict': {
'id': '1367',
'title': 'Codestream Course',
},
'playlist_count': 14,
}]
@classmethod
def suitable(cls, url):
return False if PlatziIE.suitable(url) else super(PlatziCourseIE, cls).suitable(url)
def _real_extract(self, url):
course_name = self._match_id(url)
webpage = self._download_webpage(url, course_name)
initialData = self._search_regex(
(r'window.initialData\s*=\s*({.+?})\s*;\s*\n', r'window.initialData\s*=\s*({.+?})\s*;'),
webpage, 'initialData')
props = self._parse_json(initialData, course_name, default={})
props = try_get(props, lambda x: x['initialProps'], dict) or {}
entries = []
for chapter_num, chapter in enumerate(props.get('concepts') or [], 1):
if not isinstance(chapter, dict):
continue
materials = chapter.get('materials')
if not materials or not isinstance(materials, list):
continue
chapter_title = chapter.get('title')
chapter_id = str_or_none(chapter.get('id'))
for material in materials:
if not isinstance(material, dict):
continue
if material.get('material_type') != 'video':
continue
video_url = urljoin(url, material.get('url'))
if not video_url:
continue
entries.append({
'_type': 'url_transparent',
'url': video_url,
'title': str_or_none(material.get('name')),
'id': str_or_none(material.get('id')),
'ie_key': PlatziIE.ie_key(),
'chapter': chapter_title,
'chapter_number': chapter_num,
'chapter_id': chapter_id,
})
course_id = compat_str(try_get(props, lambda x: x['course']['id']))
course_title = try_get(props, lambda x: x['course']['name'], compat_str)
result = self.playlist_result(entries, course_id, course_title)
desc = clean_html(get_element_by_class('RouteDescription-content', webpage))
if desc:
result['description'] = desc
return result