You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
215 lines
7.7 KiB
215 lines
7.7 KiB
from __future__ import unicode_literals |
|
|
|
import re |
|
import json |
|
|
|
from .common import InfoExtractor |
|
from ..compat import ( |
|
compat_str, |
|
compat_urllib_parse, |
|
compat_urllib_request, |
|
) |
|
from ..utils import ( |
|
ExtractorError, |
|
int_or_none, |
|
) |
|
|
|
|
|
class LyndaIE(InfoExtractor): |
|
IE_NAME = 'lynda' |
|
IE_DESC = 'lynda.com videos' |
|
_VALID_URL = r'https?://www\.lynda\.com/[^/]+/[^/]+/\d+/(\d+)-\d\.html' |
|
_LOGIN_URL = 'https://www.lynda.com/login/login.aspx' |
|
_NETRC_MACHINE = 'lynda' |
|
|
|
_SUCCESSFUL_LOGIN_REGEX = r'isLoggedIn: true' |
|
_TIMECODE_REGEX = r'\[(?P<timecode>\d+:\d+:\d+[\.,]\d+)\]' |
|
|
|
ACCOUNT_CREDENTIALS_HINT = 'Use --username and --password options to provide lynda.com account credentials.' |
|
|
|
_TEST = { |
|
'url': 'http://www.lynda.com/Bootstrap-tutorials/Using-exercise-files/110885/114408-4.html', |
|
'md5': 'ecfc6862da89489161fb9cd5f5a6fac1', |
|
'info_dict': { |
|
'id': '114408', |
|
'ext': 'mp4', |
|
'title': 'Using the exercise files', |
|
'duration': 68 |
|
} |
|
} |
|
|
|
def _real_initialize(self): |
|
self._login() |
|
|
|
def _real_extract(self, url): |
|
mobj = re.match(self._VALID_URL, url) |
|
video_id = mobj.group(1) |
|
|
|
page = self._download_webpage('http://www.lynda.com/ajax/player?videoId=%s&type=video' % video_id, video_id, |
|
'Downloading video JSON') |
|
video_json = json.loads(page) |
|
|
|
if 'Status' in video_json: |
|
raise ExtractorError('lynda returned error: %s' % video_json['Message'], expected=True) |
|
|
|
if video_json['HasAccess'] is False: |
|
raise ExtractorError( |
|
'Video %s is only available for members. ' % video_id + self.ACCOUNT_CREDENTIALS_HINT, expected=True) |
|
|
|
video_id = compat_str(video_json['ID']) |
|
duration = video_json['DurationInSeconds'] |
|
title = video_json['Title'] |
|
|
|
formats = [] |
|
|
|
fmts = video_json.get('Formats') |
|
if fmts: |
|
formats.extend([ |
|
{ |
|
'url': fmt['Url'], |
|
'ext': fmt['Extension'], |
|
'width': fmt['Width'], |
|
'height': fmt['Height'], |
|
'filesize': fmt['FileSize'], |
|
'format_id': str(fmt['Resolution']) |
|
} for fmt in fmts]) |
|
|
|
prioritized_streams = video_json.get('PrioritizedStreams') |
|
if prioritized_streams: |
|
formats.extend([ |
|
{ |
|
'url': video_url, |
|
'width': int_or_none(format_id), |
|
'format_id': format_id, |
|
} for format_id, video_url in prioritized_streams['0'].items() |
|
]) |
|
|
|
self._check_formats(formats, video_id) |
|
self._sort_formats(formats) |
|
|
|
subtitles = self.extract_subtitles(video_id, page) |
|
|
|
return { |
|
'id': video_id, |
|
'title': title, |
|
'duration': duration, |
|
'subtitles': subtitles, |
|
'formats': formats |
|
} |
|
|
|
def _login(self): |
|
(username, password) = self._get_login_info() |
|
if username is None: |
|
return |
|
|
|
login_form = { |
|
'username': username, |
|
'password': password, |
|
'remember': 'false', |
|
'stayPut': 'false' |
|
} |
|
request = compat_urllib_request.Request(self._LOGIN_URL, compat_urllib_parse.urlencode(login_form)) |
|
login_page = self._download_webpage(request, None, 'Logging in as %s' % username) |
|
|
|
# Not (yet) logged in |
|
m = re.search(r'loginResultJson = \'(?P<json>[^\']+)\';', login_page) |
|
if m is not None: |
|
response = m.group('json') |
|
response_json = json.loads(response) |
|
state = response_json['state'] |
|
|
|
if state == 'notlogged': |
|
raise ExtractorError('Unable to login, incorrect username and/or password', expected=True) |
|
|
|
# This is when we get popup: |
|
# > You're already logged in to lynda.com on two devices. |
|
# > If you log in here, we'll log you out of another device. |
|
# So, we need to confirm this. |
|
if state == 'conflicted': |
|
confirm_form = { |
|
'username': '', |
|
'password': '', |
|
'resolve': 'true', |
|
'remember': 'false', |
|
'stayPut': 'false', |
|
} |
|
request = compat_urllib_request.Request(self._LOGIN_URL, compat_urllib_parse.urlencode(confirm_form)) |
|
login_page = self._download_webpage(request, None, 'Confirming log in and log out from another device') |
|
|
|
if re.search(self._SUCCESSFUL_LOGIN_REGEX, login_page) is None: |
|
raise ExtractorError('Unable to log in') |
|
|
|
def _fix_subtitles(self, subs): |
|
srt = '' |
|
for pos in range(0, len(subs) - 1): |
|
seq_current = subs[pos] |
|
m_current = re.match(self._TIMECODE_REGEX, seq_current['Timecode']) |
|
if m_current is None: |
|
continue |
|
seq_next = subs[pos + 1] |
|
m_next = re.match(self._TIMECODE_REGEX, seq_next['Timecode']) |
|
if m_next is None: |
|
continue |
|
appear_time = m_current.group('timecode') |
|
disappear_time = m_next.group('timecode') |
|
text = seq_current['Caption'] |
|
srt += '%s\r\n%s --> %s\r\n%s' % (str(pos), appear_time, disappear_time, text) |
|
if srt: |
|
return srt |
|
|
|
def _get_subtitles(self, video_id, webpage): |
|
url = 'http://www.lynda.com/ajax/player?videoId=%s&type=transcript' % video_id |
|
subs = self._download_json(url, None, False) |
|
if subs: |
|
return {'en': [{'ext': 'srt', 'data': self._fix_subtitles(subs)}]} |
|
else: |
|
return {} |
|
|
|
|
|
class LyndaCourseIE(InfoExtractor): |
|
IE_NAME = 'lynda:course' |
|
IE_DESC = 'lynda.com online courses' |
|
|
|
# Course link equals to welcome/introduction video link of same course |
|
# We will recognize it as course link |
|
_VALID_URL = r'https?://(?:www|m)\.lynda\.com/(?P<coursepath>[^/]+/[^/]+/(?P<courseid>\d+))-\d\.html' |
|
|
|
def _real_extract(self, url): |
|
mobj = re.match(self._VALID_URL, url) |
|
course_path = mobj.group('coursepath') |
|
course_id = mobj.group('courseid') |
|
|
|
page = self._download_webpage('http://www.lynda.com/ajax/player?courseId=%s&type=course' % course_id, |
|
course_id, 'Downloading course JSON') |
|
course_json = json.loads(page) |
|
|
|
if 'Status' in course_json and course_json['Status'] == 'NotFound': |
|
raise ExtractorError('Course %s does not exist' % course_id, expected=True) |
|
|
|
unaccessible_videos = 0 |
|
videos = [] |
|
(username, _) = self._get_login_info() |
|
|
|
# Might want to extract videos right here from video['Formats'] as it seems 'Formats' is not provided |
|
# by single video API anymore |
|
|
|
for chapter in course_json['Chapters']: |
|
for video in chapter['Videos']: |
|
if username is None and video['HasAccess'] is False: |
|
unaccessible_videos += 1 |
|
continue |
|
videos.append(video['ID']) |
|
|
|
if unaccessible_videos > 0: |
|
self._downloader.report_warning('%s videos are only available for members and will not be downloaded. ' |
|
% unaccessible_videos + LyndaIE.ACCOUNT_CREDENTIALS_HINT) |
|
|
|
entries = [ |
|
self.url_result('http://www.lynda.com/%s/%s-4.html' % |
|
(course_path, video_id), |
|
'Lynda') |
|
for video_id in videos] |
|
|
|
course_title = course_json['Title'] |
|
|
|
return self.playlist_result(entries, course_id, course_title)
|
|
|