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5 Commits

Author SHA1 Message Date
Aaron Tan
f09b09f4f5
Merge e1dc38319c into c5098961b0 2024-08-21 22:32:44 -04:00
dirkf
c5098961b0 [Youtube] Rework n function extraction pattern
Now also succeeds with player b12cc44b
2024-08-06 20:59:09 +01:00
dirkf
dbc08fba83 [jsinterp] Improve slice implementation for player b12cc44b
Partly taken from yt-dlp/yt-dlp#10664, thx seproDev
        Fixes #32896
2024-08-06 20:51:38 +01:00
Aiur Adept
71223bff39
[Youtube] Fix nsig extraction for player 20dfca59 (#32891)
* dirkf's patch for nsig extraction
* add generic search per  yt-dlp/yt-dlp/pull/10611 - thx bashonly

---------

Co-authored-by: dirkf <fieldhouse@gmx.net>
2024-08-01 19:18:34 +01:00
Aaron Tan
e1dc38319c [erocast] Update erocast
Build on code from PR #31631.
- Add playlist info extractor to download playlists
- Refactor code from suggestions by @dirkf
2023-08-16 16:24:46 +10:00
6 changed files with 188 additions and 13 deletions

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@ -425,6 +425,34 @@ class TestJSInterpreter(unittest.TestCase):
self._test(jsi, [''], args=['', '-'])
self._test(jsi, [], args=['', ''])
def test_slice(self):
self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice()}', [0, 1, 2, 3, 4, 5, 6, 7, 8])
self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice(0)}', [0, 1, 2, 3, 4, 5, 6, 7, 8])
self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice(5)}', [5, 6, 7, 8])
self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice(99)}', [])
self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice(-2)}', [7, 8])
self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice(-99)}', [0, 1, 2, 3, 4, 5, 6, 7, 8])
self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice(0, 0)}', [])
self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice(1, 0)}', [])
self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice(0, 1)}', [0])
self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice(3, 6)}', [3, 4, 5])
self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice(1, -1)}', [1, 2, 3, 4, 5, 6, 7])
self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice(-1, 1)}', [])
self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice(-3, -1)}', [6, 7])
self._test('function f(){return "012345678".slice()}', '012345678')
self._test('function f(){return "012345678".slice(0)}', '012345678')
self._test('function f(){return "012345678".slice(5)}', '5678')
self._test('function f(){return "012345678".slice(99)}', '')
self._test('function f(){return "012345678".slice(-2)}', '78')
self._test('function f(){return "012345678".slice(-99)}', '012345678')
self._test('function f(){return "012345678".slice(0, 0)}', '')
self._test('function f(){return "012345678".slice(1, 0)}', '')
self._test('function f(){return "012345678".slice(0, 1)}', '0')
self._test('function f(){return "012345678".slice(3, 6)}', '345')
self._test('function f(){return "012345678".slice(1, -1)}', '1234567')
self._test('function f(){return "012345678".slice(-1, 1)}', '')
self._test('function f(){return "012345678".slice(-3, -1)}', '67')
if __name__ == '__main__':
unittest.main()

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@ -174,6 +174,14 @@ _NSIG_TESTS = [
'https://www.youtube.com/s/player/5604538d/player_ias.vflset/en_US/base.js',
'7X-he4jjvMx7BCX', 'sViSydX8IHtdWA',
),
(
'https://www.youtube.com/s/player/20dfca59/player_ias.vflset/en_US/base.js',
'-fLCxedkAk4LUTK2', 'O8kfRq1y1eyHGw',
),
(
'https://www.youtube.com/s/player/b12cc44b/player_ias.vflset/en_US/base.js',
'keLa5R2U00sR9SQK', 'N1OGyujjEwMnLw',
),
]

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@ -0,0 +1,99 @@
# coding: utf-8
from __future__ import unicode_literals
from .common import InfoExtractor
from ..utils import traverse_obj
import re
class ErocastIE(InfoExtractor):
IE_NAME = 'erocast'
_VALID_URL = r'https?://(?:www\.)?erocast\.me/track/(?P<id>[0-9]+)/(?P<display_id>[0-9a-zA-Z_-]+)'
_TESTS = [{
'url': 'https://erocast.me/track/6508/piano-sample-by-ytdl',
'md5': '6764726b2d19161e93c9cf3a9a69800a',
'info_dict': {
'id': '6508',
'ext': 'mp4',
'title': 'Piano sample by ytdl',
'uploader': 'ytdl',
}
}, {
'url': 'https://erocast.me/track/4254/intimate-morning-with-your-wife',
'md5': '45b06c21cf93612dd72a3d764c0bb362',
'info_dict': {
'id': '4254',
'ext': 'mp4',
'title': 'Intimate morning with your wife',
'uploader': 'ZLOY_ASMR',
}
}, {
'url': 'https://erocast.me/playlist/2278/rough-hot-and-dirty',
'only_matching': True
}]
def _real_extract(self, url):
video_id = self._match_id(url)
webpage = self._download_webpage(url, video_id)
# The Song data is in a script tag with the following format:
# (see https://github.com/ytdl-org/youtube-dl/issues/31203#issuecomment-1259867716)
searchPattern = r'<script\b[^>]*>var\s+song_data_%s\s*=\s*(.+?)</script>' % re.escape(video_id)
jsonString = self._html_search_regex(searchPattern, webpage, 'song_data')
# The data is in JSON format, so we convert the JSON String to a python object
# and read the data from this json object
jsonObject = self._parse_json(jsonString, None, fatal=False)
audio_url = jsonObject['stream_url']
title = jsonObject['title']
user_name = traverse_obj(jsonObject, ('user', 'name'), expected_type=lambda x: x.strip() or None)
# The audio url is a m3u8 playlist, so we extract the audio url from this playlist
formats = self._extract_m3u8_formats(
audio_url, video_id, 'mp4', 'm3u8_native',
m3u8_id='hls', fatal=False)
self._sort_formats(formats)
return {
'id': video_id,
'formats': formats,
'title': title,
'uploader': user_name,
}
class ErocastPlaylistIE(InfoExtractor):
_VALID_URL = r'https?://(?:www\.)?erocast\.me/playlist/(?P<playlist_id>[0-9]+)/(?P<playlist_title>[0-9a-zA-Z_-]+)'
_TESTS = [{
'url': 'https://erocast.me/playlist/2278/rough-hot-and-dirty',
'info_dict': {
'id': '2278',
'title': 'rough-hot-and-dirty',
},
'playlist_mincount': 3,
}, {
'url': 'https://erocast.me/playlist/1841/dilf',
'info_dict': {
'id': '1841',
'title': 'dilf',
},
'playlist_mincount': 7,
}]
def _real_extract(self, url):
mobj = re.match(self._VALID_URL, url)
playlist_id = mobj.group('playlist_id')
title = mobj.group('playlist_title')
webpage = self._download_webpage(url, playlist_id)
# Get URL for each track in the playlist
entries = [self.url_result(
'https://erocast.me/track/' + mobj.group('song_id') + '/' + mobj.group('track_url'),
ie=ErocastIE.ie_key(), video_id=mobj.group('song_id'))
for mobj in re.finditer(
r'<script\b[^>]*>var\s+song_data_(?P<song_id>[0-9]+)\s*=\s*.+?\\/track\\/[0-9]+\\/(?P<track_url>.+)\"\,\"stream_url.+?</script>', webpage)]
return self.playlist_result(entries, playlist_id, title)

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@ -360,6 +360,10 @@ from .embedly import EmbedlyIE
from .engadget import EngadgetIE
from .epidemicsound import EpidemicSoundIE
from .eporner import EpornerIE
from .erocast import (
ErocastIE,
ErocastPlaylistIE,
)
from .eroprofile import EroProfileIE
from .escapist import EscapistIE
from .espn import (

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@ -1659,17 +1659,46 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
def _extract_n_function_name(self, jscode):
func_name, idx = self._search_regex(
# new: (b=String.fromCharCode(110),c=a.get(b))&&c=nfunc[idx](c)
# or: (b="nn"[+a.D],c=a.get(b))&&(c=nfunc[idx](c)s
# old: .get("n"))&&(b=nfunc[idx](b)
# older: .get("n"))&&(b=nfunc(b)
# or: (b="nn"[+a.D],c=a.get(b))&&(c=nfunc[idx](c)
# or: (PL(a),b=a.j.n||null)&&(b=nfunc[idx](b)
# or: (b="nn"[+a.D],vL(a),c=a.j[b]||null)&&(c=narray[idx](c),a.set(b,c),narray.length||nfunc("")
# old: (b=a.get("n"))&&(b=nfunc[idx](b)(?P<c>[a-z])\s*=\s*[a-z]\s*
# older: (b=a.get("n"))&&(b=nfunc(b)
r'''(?x)
(?:\(\s*(?P<b>[a-z])\s*=\s*(?:
String\s*\.\s*fromCharCode\s*\(\s*110\s*\)|
"n+"\[\s*\+?s*[\w$.]+\s*]
)\s*,(?P<c>[a-z])\s*=\s*[a-z]\s*)?
\.\s*get\s*\(\s*(?(b)(?P=b)|"n{1,2}")(?:\s*\)){2}\s*&&\s*\(\s*(?(c)(?P=c)|b)\s*=\s*
(?P<nfunc>[a-zA-Z_$][\w$]*)(?:\s*\[(?P<idx>\d+)\])?\s*\(\s*[\w$]+\s*\)
''', jscode, 'Initial JS player n function name', group=('nfunc', 'idx'))
\((?:[\w$()\s]+,)*?\s* # (
(?P<b>[a-z])\s*=\s* # b=
(?:
(?: # expect ,c=a.get(b) (etc)
String\s*\.\s*fromCharCode\s*\(\s*110\s*\)|
"n+"\[\s*\+?s*[\w$.]+\s*]
)\s*(?:,[\w$()\s]+(?=,))*|
(?P<old>[\w$]+) # a (old[er])
)\s*
(?(old)
# b.get("n")
(?:\.\s*[\w$]+\s*|\[\s*[\w$]+\s*]\s*)*?
(?:\.\s*n|\[\s*"n"\s*]|\.\s*get\s*\(\s*"n"\s*\))
| # ,c=a.get(b)
,\s*(?P<c>[a-z])\s*=\s*[a-z]\s*
(?:\.\s*[\w$]+\s*|\[\s*[\w$]+\s*]\s*)*?
(?:\[\s*(?P=b)\s*]|\.\s*get\s*\(\s*(?P=b)\s*\))
)
# interstitial junk
\s*(?:\|\|\s*null\s*)?(?:\)\s*)?&&\s*(?:\(\s*)?
(?(c)(?P=c)|(?P=b))\s*=\s* # [c|b]=
# nfunc|nfunc[idx]
(?P<nfunc>[a-zA-Z_$][\w$]*)(?:\s*\[(?P<idx>\d+)\])?\s*\(\s*[\w$]+\s*\)
''', jscode, 'Initial JS player n function name', group=('nfunc', 'idx'),
default=(None, None))
# thx bashonly: yt-dlp/yt-dlp/pull/10611
if not func_name:
self.report_warning('Falling back to generic n function search')
return self._search_regex(
r'''(?xs)
(?:(?<=[^\w$])|^) # instead of \b, which ignores $
(?P<name>(?!\d)[a-zA-Z\d_$]+)\s*=\s*function\((?!\d)[a-zA-Z\d_$]+\)
\s*\{(?:(?!};).)+?["']enhanced_except_
''', jscode, 'Initial JS player n function name', group='name')
if not idx:
return func_name

View File

@ -925,9 +925,16 @@ class JSInterpreter(object):
obj.reverse()
return obj
elif member == 'slice':
assertion(isinstance(obj, list), 'must be applied on a list')
assertion(len(argvals) == 1, 'takes exactly one argument')
return obj[argvals[0]:]
assertion(isinstance(obj, (list, compat_str)), 'must be applied on a list or string')
# From [1]:
# .slice() - like [:]
# .slice(n) - like [n:] (not [slice(n)]
# .slice(m, n) - like [m:n] or [slice(m, n)]
# [1] https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/slice
assertion(len(argvals) <= 2, 'takes between 0 and 2 arguments')
if len(argvals) < 2:
argvals += (None,)
return obj[slice(*argvals)]
elif member == 'splice':
assertion(isinstance(obj, list), 'must be applied on a list')
assertion(argvals, 'takes one or more arguments')