X-Git-Url: https://git.rapsys.eu/youtubedl/blobdiff_plain/9dc487f48b50767cf540fa36c3de2c386fd74c04..7fb7d379fb909a4268a2193ba2c84fdca6a4c820:/youtube_dl/extractor/udemy.py diff --git a/youtube_dl/extractor/udemy.py b/youtube_dl/extractor/udemy.py index 89b8695..79c45f8 100644 --- a/youtube_dl/extractor/udemy.py +++ b/youtube_dl/extractor/udemy.py @@ -5,6 +5,8 @@ import re from .common import InfoExtractor from ..compat import ( compat_HTTPError, + compat_kwargs, + compat_str, compat_urllib_request, compat_urlparse, ) @@ -14,8 +16,11 @@ from ..utils import ( ExtractorError, float_or_none, int_or_none, + js_to_json, sanitized_Request, + try_get, unescapeHTML, + url_or_none, urlencode_postdata, ) @@ -51,16 +56,24 @@ class UdemyIE(InfoExtractor): # new URL schema 'url': 'https://www.udemy.com/electric-bass-right-from-the-start/learn/v4/t/lecture/4580906', 'only_matching': True, + }, { + # no url in outputs format entry + 'url': 'https://www.udemy.com/learn-web-development-complete-step-by-step-guide-to-success/learn/v4/t/lecture/4125812', + 'only_matching': True, + }, { + # only outputs rendition + 'url': 'https://www.udemy.com/how-you-can-help-your-local-community-5-amazing-examples/learn/v4/t/lecture/3225750?start=0', + 'only_matching': True, }] def _extract_course_info(self, webpage, video_id): course = self._parse_json( unescapeHTML(self._search_regex( - r'ng-init=["\'].*\bcourse=({.+?});', webpage, 'course', default='{}')), + r'ng-init=["\'].*\bcourse=({.+?})[;"\']', + webpage, 'course', default='{}')), video_id, fatal=False) or {} course_id = course.get('id') or self._search_regex( - (r'"id"\s*:\s*(\d+)', r'data-course-id=["\'](\d+)'), - webpage, 'course id') + r'data-course-id=["\'](\d+)', webpage, 'course id') return course_id, course.get('title') def _enroll_course(self, base_url, webpage, course_id): @@ -68,7 +81,7 @@ class UdemyIE(InfoExtractor): return compat_urlparse.urljoin(base_url, url) if not url.startswith('http') else url checkout_url = unescapeHTML(self._search_regex( - r'href=(["\'])(?P(?:https?://(?:www\.)?udemy\.com)?/payment/checkout/.+?)\1', + r'href=(["\'])(?P(?:https?://(?:www\.)?udemy\.com)?/(?:payment|cart)/checkout/.+?)\1', webpage, 'checkout url', group='url', default=None)) if checkout_url: raise ExtractorError( @@ -94,7 +107,7 @@ class UdemyIE(InfoExtractor): % (course_id, lecture_id), lecture_id, 'Downloading lecture JSON', query={ 'fields[lecture]': 'title,description,view_html,asset', - 'fields[asset]': 'asset_type,stream_url,thumbnail_url,download_urls,data', + 'fields[asset]': 'asset_type,stream_url,thumbnail_url,download_urls,stream_urls,captions,data', }) def _handle_error(self, response): @@ -108,6 +121,11 @@ class UdemyIE(InfoExtractor): error_str += ' - %s' % error_data.get('formErrors') raise ExtractorError(error_str, expected=True) + def _download_webpage_handle(self, *args, **kwargs): + kwargs.setdefault('headers', {})['User-Agent'] = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_5) AppleWebKit/603.2.4 (KHTML, like Gecko) Version/10.1.1 Safari/603.2.4' + return super(UdemyIE, self)._download_webpage_handle( + *args, **compat_kwargs(kwargs)) + def _download_json(self, url_or_request, *args, **kwargs): headers = { 'X-Udemy-Snail-Case': 'true', @@ -134,7 +152,7 @@ class UdemyIE(InfoExtractor): self._login() def _login(self): - (username, password) = self._get_login_info() + username, password = self._get_login_info() if username is None: return @@ -158,7 +176,7 @@ class UdemyIE(InfoExtractor): }) response = self._download_webpage( - self._LOGIN_URL, None, 'Logging in as %s' % username, + self._LOGIN_URL, None, 'Logging in', data=urlencode_postdata(login_form), headers={ 'Referer': self._ORIGIN_URL, @@ -207,16 +225,19 @@ class UdemyIE(InfoExtractor): if youtube_url: return self.url_result(youtube_url, 'Youtube') - video_id = asset['id'] + video_id = compat_str(asset['id']) thumbnail = asset.get('thumbnail_url') or asset.get('thumbnailUrl') duration = float_or_none(asset.get('data', {}).get('duration')) + subtitles = {} + automatic_captions = {} + formats = [] - def extract_output_format(src): + def extract_output_format(src, f_id): return { - 'url': src['url'], - 'format_id': '%sp' % (src.get('height') or format_id), + 'url': src.get('url'), + 'format_id': '%sp' % (src.get('height') or f_id), 'width': int_or_none(src.get('width')), 'height': int_or_none(src.get('height')), 'vbr': int_or_none(src.get('video_bitrate_in_kbps')), @@ -236,30 +257,73 @@ class UdemyIE(InfoExtractor): def add_output_format_meta(f, key): output = outputs.get(key) if isinstance(output, dict): - output_format = extract_output_format(output) + output_format = extract_output_format(output, key) output_format.update(f) return output_format return f - download_urls = asset.get('download_urls') - if isinstance(download_urls, dict): - video = download_urls.get('Video') - if isinstance(video, list): - for format_ in video: - video_url = format_.get('file') - if not video_url: - continue - format_id = format_.get('label') - f = { - 'url': format_['file'], - 'format_id': '%sp' % format_id, - 'height': int_or_none(format_id), - } - if format_id: - # Some videos contain additional metadata (e.g. - # https://www.udemy.com/ios9-swift/learn/#/lecture/3383208) - f = add_output_format_meta(f, format_id) - formats.append(f) + def extract_formats(source_list): + if not isinstance(source_list, list): + return + for source in source_list: + video_url = url_or_none(source.get('file') or source.get('src')) + if not video_url: + continue + if source.get('type') == 'application/x-mpegURL' or determine_ext(video_url) == 'm3u8': + formats.extend(self._extract_m3u8_formats( + video_url, video_id, 'mp4', entry_protocol='m3u8_native', + m3u8_id='hls', fatal=False)) + continue + format_id = source.get('label') + f = { + 'url': video_url, + 'format_id': '%sp' % format_id, + 'height': int_or_none(format_id), + } + if format_id: + # Some videos contain additional metadata (e.g. + # https://www.udemy.com/ios9-swift/learn/#/lecture/3383208) + f = add_output_format_meta(f, format_id) + formats.append(f) + + def extract_subtitles(track_list): + if not isinstance(track_list, list): + return + for track in track_list: + if not isinstance(track, dict): + continue + if track.get('kind') != 'captions': + continue + src = url_or_none(track.get('src')) + if not src: + continue + lang = track.get('language') or track.get( + 'srclang') or track.get('label') + sub_dict = automatic_captions if track.get( + 'autogenerated') is True else subtitles + sub_dict.setdefault(lang, []).append({ + 'url': src, + }) + + for url_kind in ('download', 'stream'): + urls = asset.get('%s_urls' % url_kind) + if isinstance(urls, dict): + extract_formats(urls.get('Video')) + + captions = asset.get('captions') + if isinstance(captions, list): + for cc in captions: + if not isinstance(cc, dict): + continue + cc_url = url_or_none(cc.get('url')) + if not cc_url: + continue + lang = try_get(cc, lambda x: x['locale']['locale'], compat_str) + sub_dict = (automatic_captions if cc.get('source') == 'auto' + else subtitles) + sub_dict.setdefault(lang or 'en', []).append({ + 'url': cc_url, + }) view_html = lecture.get('view_html') if view_html: @@ -293,6 +357,34 @@ class UdemyIE(InfoExtractor): 'height': height, }, res)) + # react rendition since 2017.04.15 (see + # https://github.com/rg3/youtube-dl/issues/12744) + data = self._parse_json( + self._search_regex( + r'videojs-setup-data=(["\'])(?P{.+?})\1', view_html, + 'setup data', default='{}', group='data'), video_id, + transform_source=unescapeHTML, fatal=False) + if data and isinstance(data, dict): + extract_formats(data.get('sources')) + if not duration: + duration = int_or_none(data.get('duration')) + extract_subtitles(data.get('tracks')) + + if not subtitles and not automatic_captions: + text_tracks = self._parse_json( + self._search_regex( + r'text-tracks=(["\'])(?P\[.+?\])\1', view_html, + 'text tracks', default='{}', group='data'), video_id, + transform_source=lambda s: js_to_json(unescapeHTML(s)), + fatal=False) + extract_subtitles(text_tracks) + + if not formats and outputs: + for format_id, output in outputs.items(): + f = extract_output_format(output, format_id) + if f.get('url'): + formats.append(f) + self._sort_formats(formats, field_preference=('height', 'width', 'tbr', 'format_id')) return { @@ -301,13 +393,15 @@ class UdemyIE(InfoExtractor): 'description': description, 'thumbnail': thumbnail, 'duration': duration, - 'formats': formats + 'formats': formats, + 'subtitles': subtitles, + 'automatic_captions': automatic_captions, } class UdemyCourseIE(UdemyIE): IE_NAME = 'udemy:course' - _VALID_URL = r'https?://www\.udemy\.com/(?P[^/?#&]+)' + _VALID_URL = r'https?://(?:www\.)?udemy\.com/(?P[^/?#&]+)' _TESTS = [] @classmethod