substack.py (5802B)
- import re
- import urllib.parse
- from .common import InfoExtractor
- from ..networking import HEADRequest
- from ..utils import (
- determine_ext,
- js_to_json,
- str_or_none,
- )
- from ..utils.traversal import traverse_obj
- class SubstackIE(InfoExtractor):
- _VALID_URL = r'https?://(?P<username>[\w-]+)\.substack\.com/p/(?P<id>[\w-]+)'
- _TESTS = [{
- 'url': 'https://haleynahman.substack.com/p/i-made-a-vlog?s=r',
- 'md5': 'f27e4fc6252001d48d479f45e65cdfd5',
- 'info_dict': {
- 'id': '47660949',
- 'ext': 'mp4',
- 'title': 'I MADE A VLOG',
- 'description': 'md5:9248af9a759321e1027226f988f54d96',
- 'thumbnail': 'md5:bec758a34d8ee9142d43bcebdf33af18',
- 'uploader': 'Maybe Baby',
- 'uploader_id': '33628',
- },
- }, {
- 'url': 'https://haleynahman.substack.com/p/-dear-danny-i-found-my-boyfriends?s=r',
- 'md5': '0a63eacec877a1171a62cfa69710fcea',
- 'info_dict': {
- 'id': '51045592',
- 'ext': 'mpga',
- 'title': "🎧 Dear Danny: I found my boyfriend's secret Twitter account",
- 'description': 'md5:a57f2439319e56e0af92dd0c95d75797',
- 'thumbnail': 'md5:daa40b6b79249417c14ff8103db29639',
- 'uploader': 'Maybe Baby',
- 'uploader_id': '33628',
- },
- }, {
- 'url': 'https://andrewzimmern.substack.com/p/mussels-with-black-bean-sauce-recipe',
- 'md5': 'fd3c07077b02444ff0130715b5f632bb',
- 'info_dict': {
- 'id': '47368578',
- 'ext': 'mp4',
- 'title': 'Mussels with Black Bean Sauce: Recipe of the Week #7',
- 'description': 'md5:b96234a2906c7d854d5229818d889515',
- 'thumbnail': 'md5:e30bfaa9da40e82aa62354263a9dd232',
- 'uploader': "Andrew Zimmern's Spilled Milk ",
- 'uploader_id': '577659',
- },
- }, {
- # Podcast that needs its file extension resolved to mp3
- 'url': 'https://persuasion1.substack.com/p/summers',
- 'md5': '1456a755d46084744facdfac9edf900f',
- 'info_dict': {
- 'id': '141970405',
- 'ext': 'mp3',
- 'title': 'Larry Summers on What Went Wrong on Campus',
- 'description': 'Yascha Mounk and Larry Summers also discuss the promise and perils of artificial intelligence.',
- 'thumbnail': r're:https://substackcdn\.com/image/.+\.jpeg',
- 'uploader': 'Persuasion',
- 'uploader_id': '61579',
- },
- }]
- @classmethod
- def _extract_embed_urls(cls, url, webpage):
- if not re.search(r'<script[^>]+src=["\']https://substackcdn.com/[^"\']+\.js', webpage):
- return
- mobj = re.search(r'{[^}]*\\?["\']subdomain\\?["\']\s*:\s*\\?["\'](?P<subdomain>[^\\"\']+)', webpage)
- if mobj:
- parsed = urllib.parse.urlparse(url)
- yield parsed._replace(netloc=f'{mobj.group("subdomain")}.substack.com').geturl()
- raise cls.StopExtraction
- def _extract_video_formats(self, video_id, url):
- formats, subtitles = [], {}
- for video_format in ('hls', 'mp4'):
- video_url = urllib.parse.urljoin(url, f'/api/v1/video/upload/{video_id}/src?type={video_format}')
- if video_format == 'hls':
- fmts, subs = self._extract_m3u8_formats_and_subtitles(video_url, video_id, 'mp4', fatal=False)
- formats.extend(fmts)
- self._merge_subtitles(subs, target=subtitles)
- else:
- formats.append({
- 'url': video_url,
- 'ext': video_format,
- })
- return formats, subtitles
- def _real_extract(self, url):
- display_id, username = self._match_valid_url(url).group('id', 'username')
- webpage = self._download_webpage(url, display_id)
- webpage_info = self._parse_json(self._search_json(
- r'window\._preloads\s*=\s*JSON\.parse\(', webpage, 'json string',
- display_id, transform_source=js_to_json, contains_pattern=r'"{(?s:.+)}"'), display_id)
- canonical_url = url
- domain = traverse_obj(webpage_info, ('domainInfo', 'customDomain', {str}))
- if domain:
- canonical_url = urllib.parse.urlparse(url)._replace(netloc=domain).geturl()
- post_type = webpage_info['post']['type']
- formats, subtitles = [], {}
- if post_type == 'podcast':
- fmt = {'url': webpage_info['post']['podcast_url']}
- if not determine_ext(fmt['url'], default_ext=None):
- # The redirected format URL expires but the original URL doesn't,
- # so we only want to extract the extension from this request
- fmt['ext'] = determine_ext(self._request_webpage(
- HEADRequest(fmt['url']), display_id,
- 'Resolving podcast file extension',
- 'Podcast URL is invalid').url)
- formats.append(fmt)
- elif post_type == 'video':
- formats, subtitles = self._extract_video_formats(webpage_info['post']['videoUpload']['id'], canonical_url)
- else:
- self.raise_no_formats(f'Page type "{post_type}" is not supported')
- return {
- 'id': str(webpage_info['post']['id']),
- 'formats': formats,
- 'subtitles': subtitles,
- 'title': traverse_obj(webpage_info, ('post', 'title')),
- 'description': traverse_obj(webpage_info, ('post', 'description')),
- 'thumbnail': traverse_obj(webpage_info, ('post', 'cover_image')),
- 'uploader': traverse_obj(webpage_info, ('pub', 'name')),
- 'uploader_id': str_or_none(traverse_obj(webpage_info, ('post', 'publication_id'))),
- 'webpage_url': canonical_url,
- }