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7 Commits

Author SHA1 Message Date
Guredora
f07ca8defd
Merge 2730e55b36 into c5098961b0 2024-08-21 22:33:22 -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
guredora
2730e55b36 [NhkRadio] fix error from flake8 2021-04-05 18:01:07 +09:00
guredora
7bb932b964 [NhkRadio] fix error from flake8 2021-04-05 17:50:39 +09:00
guredora
2bbe77d484 [NhkRadio] add new extractor 2021-04-04 23:42:45 +09:00
6 changed files with 195 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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@ -810,6 +810,10 @@ from .nhk import (
NhkVodIE,
NhkVodProgramIE,
)
from .nhkRadio import (
NhkRadioIE,
NhkRadioProgramIE
)
from .nhl import NHLIE
from .nick import (
NickIE,

View File

@ -0,0 +1,106 @@
# coding: utf-8
from __future__ import unicode_literals
from .common import InfoExtractor
from ..utils import ExtractorError, parse_iso8601
from ..compat import compat_HTTPError
import re
class NhkRadioBase(InfoExtractor):
def _get_json_meta(self, program_id, corner_id):
program_corner_id = program_id + "_" + corner_id
try:
data = self._download_json(
"https://www.nhk.or.jp/radioondemand/json/"
+ program_id
+ "/bangumi_"
+ program_corner_id
+ ".json",
program_corner_id,
)
except ExtractorError as e:
if isinstance(e.cause, compat_HTTPError) and e.cause.code == 404:
raise ExtractorError("The invalid url", expected=True)
return data
def _extract_program(self, info, program_corner_id):
id = program_corner_id + "_" + info.get("headline_id")
file = info.get("file_list")[0]
formats = self._extract_m3u8_formats(file.get("file_name", None), id, "m4a", entry_protocol="m3u8_native", m3u8_id="hls")
self._sort_formats(formats)
return {
"id": id,
"title": file.get("file_title"),
"formats": formats,
"timestamp": parse_iso8601(file.get("close_time")),
}
class NhkRadioIE(NhkRadioBase):
_VALID_URL = r"https?://www\.nhk\.or\.jp/radio/player/ondemand\.html\?p=(?P<program_id>\d+)_(?P<corner_id>\d+)_(?P<headline_id>\d+)"
_TESTS = [
{
"url": "https://www.nhk.or.jp/radio/player/ondemand.html?p=4812_01_2898188",
"info_dict": {
"id": "4812_01_2898188",
"ext": "m4a",
"title": "世界へ発信!ニュースで英語術 #209▽“首相長男から接待” 総務省11人を処分",
"upload_date": str,
"timestamp": int,
},
},
{
"url": "https://www.nhk.or.jp/radio/player/ondemand.html?p=0444_01_2890944",
"info_dict": {
"ext": "m4a",
"id": "0444_01_2890944",
"title": "歌謡スクランブル 春色コレクション(3) ▽尾崎亜美",
"upload_date": str,
"timestamp": int,
},
},
]
def _real_extract(self, url):
program_id, corner_id, headline_id = re.match(self._VALID_URL, url).groups()
program_corner_id = program_id + "_" + corner_id
data = self._download_json(
"https://www.nhk.or.jp/radioondemand/json/"
+ program_id
+ "/bangumi_"
+ program_corner_id
+ ".json",
program_corner_id,
)
for detail in data["main"]["detail_list"]:
if headline_id == detail.get("headline_id"):
return self._extract_program(detail, program_corner_id)
raise ExtractorError("The program not found", expected=True)
class NhkRadioProgramIE(NhkRadioBase):
_VALID_URL = r"https?://www\.nhk\.or\.jp/radio/ondemand/detail\.html\?p=(?P<program_id>\d+)_(?P<corner_id>\d+)"
_TESTS = [
{
"url": "https://www.nhk.or.jp/radio/ondemand/detail.html?p=0164_01",
"info_dict": {"title": "青春アドベンチャー", "id": "0164_01"},
"playlist_mincount": 5,
},
{
"url": "https://www.nhk.or.jp/radio/ondemand/detail.html?p=0455_01",
"info_dict": {"id": "0455_01", "title": "弾き語りフォーユー"},
"playlist_mincount": 5,
},
]
def _real_extract(self, url):
program_id, corner_id = re.match(self._VALID_URL, url).groups()
data = self._get_json_meta(program_id, corner_id)
entries = []
for detail in data["main"]["detail_list"]:
entries.append(self._extract_program(detail, program_id + "_" + corner_id))
return self.playlist_result(
entries, program_id + "_" + corner_id, data["main"]["program_name"]
)

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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')