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145 lines
5.3 KiB
145 lines
5.3 KiB
from __future__ import unicode_literals |
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import re |
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import json |
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from .subtitles import SubtitlesInfoExtractor |
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from .common import InfoExtractor |
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from ..utils import ExtractorError |
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class LyndaIE(SubtitlesInfoExtractor): |
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IE_NAME = 'lynda' |
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IE_DESC = 'lynda.com videos' |
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_VALID_URL = r'https?://www\.lynda\.com/[^/]+/[^/]+/\d+/(\d+)-\d\.html' |
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_TEST = { |
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'url': 'http://www.lynda.com/Bootstrap-tutorials/Using-exercise-files/110885/114408-4.html', |
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'file': '114408.mp4', |
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'md5': 'ecfc6862da89489161fb9cd5f5a6fac1', |
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'info_dict': { |
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'title': 'Using the exercise files', |
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'duration': 68 |
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} |
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} |
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def _real_extract(self, url): |
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mobj = re.match(self._VALID_URL, url) |
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video_id = mobj.group(1) |
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page = self._download_webpage('http://www.lynda.com/ajax/player?videoId=%s&type=video' % video_id, |
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video_id, 'Downloading video JSON') |
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video_json = json.loads(page) |
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if 'Status' in video_json and video_json['Status'] == 'NotFound': |
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raise ExtractorError('Video %s does not exist' % video_id, expected=True) |
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if video_json['HasAccess'] is False: |
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raise ExtractorError('Video %s is only available for members' % video_id, expected=True) |
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video_id = video_json['ID'] |
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duration = video_json['DurationInSeconds'] |
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title = video_json['Title'] |
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formats = [{'url': fmt['Url'], |
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'ext': fmt['Extension'], |
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'width': fmt['Width'], |
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'height': fmt['Height'], |
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'filesize': fmt['FileSize'], |
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'format_id': str(fmt['Resolution']) |
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} for fmt in video_json['Formats']] |
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self._sort_formats(formats) |
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if self._downloader.params.get('listsubtitles', False): |
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self._list_available_subtitles(video_id, page) |
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return |
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subtitles = self._fix_subtitles(self.extract_subtitles(video_id, page)) |
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return { |
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'id': video_id, |
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'title': title, |
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'duration': duration, |
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'subtitles': subtitles, |
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'formats': formats |
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} |
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_TIMECODE_REGEX = r'\[(?P<timecode>\d+:\d+:\d+[\.,]\d+)\]' |
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def _fix_subtitles(self, subtitles): |
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if subtitles is None: |
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return subtitles # subtitles not requested |
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fixed_subtitles = {} |
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for k, v in subtitles.items(): |
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subs = json.loads(v) |
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if len(subs) == 0: |
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continue |
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srt = '' |
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for pos in range(0, len(subs) - 1): |
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seq_current = subs[pos] |
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m_current = re.match(self._TIMECODE_REGEX, seq_current['Timecode']) |
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if m_current is None: |
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continue |
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seq_next = subs[pos + 1] |
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m_next = re.match(self._TIMECODE_REGEX, seq_next['Timecode']) |
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if m_next is None: |
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continue |
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appear_time = m_current.group('timecode') |
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disappear_time = m_next.group('timecode') |
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text = seq_current['Caption'] |
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srt += '%s\r\n%s --> %s\r\n%s' % (str(pos), appear_time, disappear_time, text) |
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if srt: |
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fixed_subtitles[k] = srt |
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return fixed_subtitles |
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def _get_available_subtitles(self, video_id, webpage): |
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url = 'http://www.lynda.com/ajax/player?videoId=%s&type=transcript' % video_id |
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sub = self._download_webpage(url, None, note=False) |
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sub_json = json.loads(sub) |
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return {'en': url} if len(sub_json) > 0 else {} |
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class LyndaCourseIE(InfoExtractor): |
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IE_NAME = 'lynda:course' |
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IE_DESC = 'lynda.com online courses' |
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# Course link equals to welcome/introduction video link of same course |
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# We will recognize it as course link |
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_VALID_URL = r'https?://(?:www|m)\.lynda\.com/(?P<coursepath>[^/]+/[^/]+/(?P<courseid>\d+))-\d\.html' |
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def _real_extract(self, url): |
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mobj = re.match(self._VALID_URL, url) |
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course_path = mobj.group('coursepath') |
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course_id = mobj.group('courseid') |
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page = self._download_webpage('http://www.lynda.com/ajax/player?courseId=%s&type=course' % course_id, |
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course_id, 'Downloading course JSON') |
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course_json = json.loads(page) |
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if 'Status' in course_json and course_json['Status'] == 'NotFound': |
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raise ExtractorError('Course %s does not exist' % course_id, expected=True) |
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unaccessible_videos = 0 |
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videos = [] |
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for chapter in course_json['Chapters']: |
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for video in chapter['Videos']: |
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if video['HasAccess'] is not True: |
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unaccessible_videos += 1 |
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continue |
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videos.append(video['ID']) |
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if unaccessible_videos > 0: |
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self._downloader.report_warning('%s videos are only available for members and will not be downloaded' % unaccessible_videos) |
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entries = [ |
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self.url_result('http://www.lynda.com/%s/%s-4.html' % |
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(course_path, video_id), |
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'Lynda') |
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for video_id in videos] |
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course_title = course_json['Title'] |
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return self.playlist_result(entries, course_id, course_title)
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