+++ /dev/null
-# coding: utf-8
-from __future__ import unicode_literals
-
-import collections
-import re
-
-from .common import InfoExtractor
-from ..compat import (
- compat_urlparse)
-from ..utils import (
- ExtractorError,
- urlencode_postdata,
- qualities, unescapeHTML)
-
-
-class FrontEndMasterBaseIE(InfoExtractor):
- _API_BASE = 'https://api.frontendmasters.com/v1/kabuki/courses'
- _VIDEO_BASE = 'http://www.frontendmasters.com/courses'
- _CAPTIONS_BASE = 'https://api.frontendmasters.com/v1/kabuki/transcripts'
- _COOKIES_BASE = 'https://api.frontendmasters.com'
- _LOGIN_URL = 'https://frontendmasters.com/login/'
-
- _QUALITIES_PREFERENCE = ('low', 'medium', 'high')
- _QUALITIES = {
- 'low': {'width': 480, 'height': 360},
- 'medium': {'width': 1280, 'height': 720},
- 'high': {'width': 1920, 'height': 1080}
- }
-
- AllowedQuality = collections.namedtuple('AllowedQuality',
- ['ext', 'qualities'])
- _ALLOWED_QUALITIES = [
- AllowedQuality('webm', ['low', 'medium', 'high']),
- AllowedQuality('mp4', ['low', 'medium', 'high'])
- ]
-
- 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({
- 'username': username,
- 'password': password
- })
-
- post_url = self._search_regex(
- r'<form[^>]+action=(["\'])(?P<url>.+?)\1', 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)
-
- response = self._download_webpage(
- post_url, None, 'Logging in',
- data=urlencode_postdata(login_form),
- headers={'Content-Type': 'application/x-www-form-urlencoded'}
- )
-
- error = self._search_regex(
- r'<div[^>]+class=["\']Message MessageAlert["\'][^>]*>'
- r'([^<]+)'
- r'</div>',
- response, 'error message', default=None)
-
- if error:
- raise ExtractorError('Unable to login: %s' % unescapeHTML(error),
- expected=True)
-
- def _download_course(self, course_id, url):
- response = self._download_json(
- '%s/%s' % (self._API_BASE, course_id), course_id,
- 'Downloading course JSON',
- headers={
- 'Content-Type': 'application/json;charset=utf-8',
- 'Referer': url,
- })
- return response
-
- @staticmethod
- def _pair_section_video_element(lesson_elements):
- sections = {}
- current_section = None
- current_section_number = 0
- for elem in lesson_elements:
- if not isinstance(elem, int):
- elem_name = elem
- if not isinstance(elem_name, str):
- # convert unicode to str
- elem_name = elem.encode('utf-8')
- (current_section, current_section_number) = \
- (elem_name, current_section_number + 1)
- else:
- if current_section:
- sections[elem] = (current_section, current_section_number)
-
- return sections
-
-
-class FrontEndMasterIE(FrontEndMasterBaseIE):
- IE_NAME = 'frontend-masters'
- _VALID_URL = r'https?://(?:www\.)?frontendmasters\.com/courses/' \
- r'(?P<courseid>[a-z\-]+)/' \
- r'(?P<id>[a-z\-]+)'
-
- _NETRC_MACHINE = 'frontendmasters'
-
- _TEST = {
- 'url': 'https://frontendmasters.com/courses/web-development/tools',
- 'md5': '7f161159710d6b7016a4f4af6fcb05e2',
- 'info_dict': {
- 'id': 'tools',
- 'title': 'Tools',
- 'display_id': 'tools',
- 'description': 'md5:82c1ea6472e88ed5acd1829fe992e4f7',
- 'ext': 'mp4'
- },
- 'skip': 'Requires FrontendMasters account credentials',
- }
-
- def _get_subtitles(self, video_hash, video_id):
- captions = self._download_webpage(
- '%s/%s.vtt' % (self._CAPTIONS_BASE, video_hash), video_id,
- fatal=False)
- if captions:
- return {
- 'en': [{
- 'ext': 'vtt',
- 'data': captions
- }]
- }
-
- def _real_extract(self, url):
- mobj = re.match(self._VALID_URL, url)
- video_id = mobj.group('id')
- course_id = mobj.group('courseid')
-
- course_json_content = self._download_course(course_id=course_id,
- url=url)
-
- # Necessary to get mandatory informations like title and video_url
- lesson_index = course_json_content.get('lessonSlugs').index(video_id)
- lesson_hash = course_json_content.get('lessonHashes')[lesson_index]
- lesson_data = course_json_content.get('lessonData')[lesson_hash]
- # This is necessary to get the link for the video
- lesson_source_base = lesson_data['sourceBase']
-
- lesson_title = lesson_data['title']
-
- # Some optional fields
- lesson_description = lesson_data.get('description')
- lesson_index = lesson_data.get('index')
- lesson_slug = lesson_data.get('slug')
- lesson_thumbnail_url = lesson_data.get('thumbnail')
- lesson_section_elements = course_json_content.get('lessonElements')
-
- try:
- course_sections_pairing = self._pair_section_video_element(
- lesson_section_elements)
-
- lesson_section = \
- course_sections_pairing.get(lesson_index)[0]
-
- lesson_section_number = \
- course_sections_pairing.get(lesson_index)[1]
- except Exception:
- lesson_section = None
- lesson_section_number = None
-
- video_request_url = '%s/source'
- video_request_headers = {
- 'origin': 'https://frontendmasters.com',
- 'referer': lesson_source_base,
- }
-
- quality_key = qualities(self._QUALITIES_PREFERENCE)
-
- formats = []
- for ext, qualities_ in self._ALLOWED_QUALITIES:
- for quality in qualities_:
- f = self._QUALITIES[quality].copy()
- video_request_params = {
- 'r': f['height'],
- 'f': ext
- }
- video_response = self._download_json(
- video_request_url % lesson_source_base, video_id,
- query=video_request_params, headers=video_request_headers)
-
- video_url = video_response.get('url')
- clip_f = f.copy()
- clip_f.update({
- 'url': video_url,
- 'ext': ext,
- 'format_id': '%s-%s' % (ext, quality),
- 'quality': quality_key(quality),
- 'height': f['height']
- })
- formats.append(clip_f)
-
- self._sort_formats(formats)
-
- subtitles = self.extract_subtitles(lesson_hash, video_id)
-
- return {
- 'id': video_id,
- 'display_id': lesson_slug,
- 'title': lesson_title,
- 'description': lesson_description,
- 'chapter': lesson_section,
- 'chapter_number': lesson_section_number,
- 'thumbnail': lesson_thumbnail_url,
- 'formats': formats,
- 'subtitles': subtitles
- }
-
-
-class FrontEndMasterCourseIE(FrontEndMasterBaseIE):
- IE_NAME = 'frontend-masters:course'
- _VALID_URL = r'https?://(?:www\.)?frontendmasters\.com/courses/(?P<courseid>[a-z\-]+)/?$'
-
- _NETRC_MACHINE = 'frontendmasters'
-
- _TEST = {
- 'url': 'https://frontendmasters.com/courses/javascript-basics/',
- 'info_dict': {
- 'id': 'javascript-basics',
- 'title': 'Introduction to JavaScript Programming',
- 'description': 'md5:269412fbb76d86954761599ad8e4cbc9'
- },
- 'playlist_count': 19,
- 'skip': 'Requires FrontendMasters account credentials'
- }
-
- @classmethod
- def suitable(cls, url):
- return False if FrontEndMasterIE.suitable(url) else super(FrontEndMasterBaseIE, cls).suitable(url)
-
- def _real_extract(self, url):
- mobj = re.match(self._VALID_URL, url)
- course_id = mobj.group('courseid')
- course_json_content = self._download_course(course_id=course_id,
- url=url)
-
- title = course_json_content.get('title')
- description = course_json_content.get('description')
- course_display_id = course_json_content.get('slug')
-
- videos_data = course_json_content.get('lessonData').values()
- videos_data = sorted(videos_data, key=lambda video: video.get('index'))
-
- entries = []
- for video in videos_data:
- video_slug = video.get('slug')
- clip_url = '%s/%s/%s' % (
- self._VIDEO_BASE, course_display_id, video_slug)
- entries.append({
- '_type': 'url_transparent',
- 'url': clip_url,
- 'ie_key': FrontEndMasterIE.ie_key()
- })
-
- return self.playlist_result(entries, course_id, title, description)
projects / youtube-dl / blobdiff