[lynda] Add support for new authentication (Closes #9740)
This commit is contained in:
Sergey M․
parent
836ab0c554
commit
bdf16f8140
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@ -1,84 +1,89 @@
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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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from .common import InfoExtractor
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from ..compat import compat_str
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from ..compat import (
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compat_HTTPError,
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compat_str,
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compat_urlparse,
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)
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from ..utils import (
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ExtractorError,
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clean_html,
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int_or_none,
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sanitized_Request,
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urlencode_postdata,
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)
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class LyndaBaseIE(InfoExtractor):
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_LOGIN_URL = 'https://www.lynda.com/login/login.aspx'
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_SIGNIN_URL = 'https://www.lynda.com/signin'
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_PASSWORD_URL = 'https://www.lynda.com/signin/password'
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_USER_URL = 'https://www.lynda.com/signin/user'
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_ACCOUNT_CREDENTIALS_HINT = 'Use --username and --password options to provide lynda.com account credentials.'
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_NETRC_MACHINE = 'lynda'
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def _real_initialize(self):
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self._login()
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@staticmethod
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def _check_error(json_string, key_or_keys):
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keys = [key_or_keys] if isinstance(key_or_keys, compat_str) else key_or_keys
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for key in keys:
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error = json_string.get(key)
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if error:
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raise ExtractorError('Unable to login: %s' % error, expected=True)
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def _login_step(self, form_html, fallback_action_url, extra_form_data, note, referrer_url):
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action_url = self._search_regex(
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r'<form[^>]+action=(["\'])(?P<url>.+?)\1', form_html,
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'post url', default=fallback_action_url, group='url')
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if not action_url.startswith('http'):
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action_url = compat_urlparse.urljoin(self._SIGNIN_URL, action_url)
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form_data = self._hidden_inputs(form_html)
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form_data.update(extra_form_data)
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try:
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response = self._download_json(
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action_url, None, note,
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data=urlencode_postdata(form_data),
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headers={
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'Referer': referrer_url,
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'X-Requested-With': 'XMLHttpRequest',
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})
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except ExtractorError as e:
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if isinstance(e.cause, compat_HTTPError) and e.cause.code == 500:
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response = self._parse_json(e.cause.read().decode('utf-8'), None)
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self._check_error(response, ('email', 'password'))
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raise
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self._check_error(response, 'ErrorMessage')
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return response, action_url
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def _login(self):
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username, password = self._get_login_info()
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if username is None:
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return
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login_form = {
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'username': username,
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'password': password,
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'remember': 'false',
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'stayPut': 'false'
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}
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request = sanitized_Request(
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self._LOGIN_URL, urlencode_postdata(login_form))
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login_page = self._download_webpage(
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request, None, 'Logging in as %s' % username)
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# Step 1: download signin page
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signin_page = self._download_webpage(
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self._SIGNIN_URL, None, 'Downloading signin page')
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# Not (yet) logged in
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m = re.search(r'loginResultJson\s*=\s*\'(?P<json>[^\']+)\';', login_page)
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if m is not None:
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response = m.group('json')
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response_json = json.loads(response)
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state = response_json['state']
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# Step 2: submit email
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signin_form = self._search_regex(
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r'(?s)(<form[^>]+data-form-name=["\']signin["\'][^>]*>.+?</form>)',
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signin_page, 'signin form')
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signin_page, signin_url = self._login_step(
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signin_form, self._PASSWORD_URL, {'email': username},
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'Submitting email', self._SIGNIN_URL)
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if state == 'notlogged':
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raise ExtractorError(
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'Unable to login, incorrect username and/or password',
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expected=True)
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# This is when we get popup:
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# > You're already logged in to lynda.com on two devices.
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# > If you log in here, we'll log you out of another device.
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# So, we need to confirm this.
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if state == 'conflicted':
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confirm_form = {
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'username': '',
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'password': '',
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'resolve': 'true',
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'remember': 'false',
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'stayPut': 'false',
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}
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request = sanitized_Request(
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self._LOGIN_URL, urlencode_postdata(confirm_form))
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login_page = self._download_webpage(
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request, None,
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'Confirming log in and log out from another device')
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if all(not re.search(p, login_page) for p in ('isLoggedIn\s*:\s*true', r'logout\.aspx', r'>Log out<')):
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if 'login error' in login_page:
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mobj = re.search(
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r'(?s)<h1[^>]+class="topmost">(?P<title>[^<]+)</h1>\s*<div>(?P<description>.+?)</div>',
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login_page)
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if mobj:
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raise ExtractorError(
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'lynda returned error: %s - %s'
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% (mobj.group('title'), clean_html(mobj.group('description'))),
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expected=True)
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raise ExtractorError('Unable to log in')
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# Step 3: submit password
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password_form = signin_page['body']
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self._login_step(
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password_form, self._USER_URL, {'email': username, 'password': password},
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'Submitting password', signin_url)
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def _logout(self):
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username, _ = self._get_login_info()
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