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[YouTube] Fix nsig challenge for player 3bb1f723 #32987

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merged 14 commits into from
Dec 16, 2024
Merged

[YouTube] Fix nsig challenge for player 3bb1f723 #32987

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af7c0ff
[InfoExtractor] Use kwarg maxsplit for re.split
dirkf Dec 12, 2024
7e93935
[jsinterp] Implement `typeof` operator
dirkf Dec 7, 2024
527c137
[jsinterp] Fix and improve loose and strict equality operations
dirkf Dec 12, 2024
7d3045c
[jsinterp] Support multiple indexing (eg a[1][2])
dirkf Dec 12, 2024
9993e8c
[jsinterp] Fix and improve arithmetic operations
dirkf Dec 12, 2024
4bf85ca
[jsinterp] Fix and improve split/join
dirkf Dec 12, 2024
7ab85d8
[jsinterp] Fix and improve "methods"
dirkf Dec 12, 2024
067ad74
[jsinterp] Strip /* comments */ when parsing
dirkf Dec 12, 2024
2968201
[jsinterp] Add return hook for player `3bb1f723`
dirkf Dec 12, 2024
a93fff3
[YouTube] Handle player `3bb1f723`
dirkf Dec 7, 2024
9bc8fcf
[YouTube] Pass nsig value as return hook, fixes player `3bb1f723`
dirkf Dec 12, 2024
3d64984
[YouTube] Simplify pattern for nsig function name extraction
dirkf Dec 13, 2024
82b5256
[YouTube] Fix signature function extraction for `2f1832d2`
dirkf Dec 13, 2024
12bc377
[YouTube] Always extract using MWEB API client
dirkf Dec 14, 2024
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143 changes: 138 additions & 5 deletions test/test_jsinterp.py
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
#!/usr/bin/env python
# coding: utf-8

from __future__ import unicode_literals

Expand All @@ -11,15 +12,15 @@
import math
import re

from youtube_dl.compat import compat_str
from youtube_dl.compat import compat_str as str
from youtube_dl.jsinterp import JS_Undefined, JSInterpreter

NaN = object()


class TestJSInterpreter(unittest.TestCase):
def _test(self, jsi_or_code, expected, func='f', args=()):
if isinstance(jsi_or_code, compat_str):
if isinstance(jsi_or_code, str):
jsi_or_code = JSInterpreter(jsi_or_code)
got = jsi_or_code.call_function(func, *args)
if expected is NaN:
Expand All @@ -40,34 +41,54 @@ def test_add(self):
self._test('function f(){return 42 + 7;}', 49)
self._test('function f(){return 42 + undefined;}', NaN)
self._test('function f(){return 42 + null;}', 42)
self._test('function f(){return 1 + "";}', '1')
self._test('function f(){return 42 + "7";}', '427')
self._test('function f(){return false + true;}', 1)
self._test('function f(){return "false" + true;}', 'falsetrue')
self._test('function f(){return '
'1 + "2" + [3,4] + {k: 56} + null + undefined + Infinity;}',
'123,4[object Object]nullundefinedInfinity')

def test_sub(self):
self._test('function f(){return 42 - 7;}', 35)
self._test('function f(){return 42 - undefined;}', NaN)
self._test('function f(){return 42 - null;}', 42)
self._test('function f(){return 42 - "7";}', 35)
self._test('function f(){return 42 - "spam";}', NaN)

def test_mul(self):
self._test('function f(){return 42 * 7;}', 294)
self._test('function f(){return 42 * undefined;}', NaN)
self._test('function f(){return 42 * null;}', 0)
self._test('function f(){return 42 * "7";}', 294)
self._test('function f(){return 42 * "eggs";}', NaN)

def test_div(self):
jsi = JSInterpreter('function f(a, b){return a / b;}')
self._test(jsi, NaN, args=(0, 0))
self._test(jsi, NaN, args=(JS_Undefined, 1))
self._test(jsi, float('inf'), args=(2, 0))
self._test(jsi, 0, args=(0, 3))
self._test(jsi, 6, args=(42, 7))
self._test(jsi, 0, args=(42, float('inf')))
self._test(jsi, 6, args=("42", 7))
self._test(jsi, NaN, args=("spam", 7))

def test_mod(self):
self._test('function f(){return 42 % 7;}', 0)
self._test('function f(){return 42 % 0;}', NaN)
self._test('function f(){return 42 % undefined;}', NaN)
self._test('function f(){return 42 % "7";}', 0)
self._test('function f(){return 42 % "beans";}', NaN)

def test_exp(self):
self._test('function f(){return 42 ** 2;}', 1764)
self._test('function f(){return 42 ** undefined;}', NaN)
self._test('function f(){return 42 ** null;}', 1)
self._test('function f(){return undefined ** 0;}', 1)
self._test('function f(){return undefined ** 42;}', NaN)
self._test('function f(){return 42 ** "2";}', 1764)
self._test('function f(){return 42 ** "spam";}', NaN)

def test_calc(self):
self._test('function f(a){return 2*a+1;}', 7, args=[3])
Expand All @@ -89,7 +110,35 @@ def test_operators(self):
self._test('function f(){return 19 & 21;}', 17)
self._test('function f(){return 11 >> 2;}', 2)
self._test('function f(){return []? 2+3: 4;}', 5)
# equality
self._test('function f(){return 1 == 1}', True)
self._test('function f(){return 1 == 1.0}', True)
self._test('function f(){return 1 == "1"}', True)
self._test('function f(){return 1 == 2}', False)
self._test('function f(){return 1 != "1"}', False)
self._test('function f(){return 1 != 2}', True)
self._test('function f(){var x = {a: 1}; var y = x; return x == y}', True)
self._test('function f(){var x = {a: 1}; return x == {a: 1}}', False)
self._test('function f(){return NaN == NaN}', False)
self._test('function f(){return null == undefined}', True)
self._test('function f(){return "spam, eggs" == "spam, eggs"}', True)
# strict equality
self._test('function f(){return 1 === 1}', True)
self._test('function f(){return 1 === 1.0}', True)
self._test('function f(){return 1 === "1"}', False)
self._test('function f(){return 1 === 2}', False)
self._test('function f(){var x = {a: 1}; var y = x; return x === y}', True)
self._test('function f(){var x = {a: 1}; return x === {a: 1}}', False)
self._test('function f(){return NaN === NaN}', False)
self._test('function f(){return null === undefined}', False)
self._test('function f(){return null === null}', True)
self._test('function f(){return undefined === undefined}', True)
self._test('function f(){return "uninterned" === "uninterned"}', True)
self._test('function f(){return 1 === 1}', True)
self._test('function f(){return 1 === "1"}', False)
self._test('function f(){return 1 !== 1}', False)
self._test('function f(){return 1 !== "1"}', True)
# expressions
self._test('function f(){return 0 && 1 || 2;}', 2)
self._test('function f(){return 0 ?? 42;}', 0)
self._test('function f(){return "life, the universe and everything" < 42;}', False)
Expand All @@ -111,7 +160,6 @@ def test_assignments(self):
self._test('function f(){var x = 20; x += 30 + 1; return x;}', 51)
self._test('function f(){var x = 20; x -= 30 + 1; return x;}', -11)

@unittest.skip('Not yet fully implemented')
def test_comments(self):
self._test('''
function f() {
Expand All @@ -130,6 +178,15 @@ def test_comments(self):
}
''', 3)

self._test('''
function f() {
var x = ( /* 1 + */ 2 +
/* 30 * 40 */
50);
return x;
}
''', 52)

def test_precedence(self):
self._test('''
function f() {
Expand Down Expand Up @@ -266,7 +323,20 @@ def test_comma(self):
self._test('function f() { return (l=[0,1,2,3], function(a, b){return a+b})((l[1], l[2]), l[3]) }', 5)

def test_void(self):
self._test('function f() { return void 42; }', None)
self._test('function f() { return void 42; }', JS_Undefined)

def test_typeof(self):
self._test('function f() { return typeof undefined; }', 'undefined')
self._test('function f() { return typeof NaN; }', 'number')
self._test('function f() { return typeof Infinity; }', 'number')
self._test('function f() { return typeof true; }', 'boolean')
self._test('function f() { return typeof null; }', 'object')
self._test('function f() { return typeof "a string"; }', 'string')
self._test('function f() { return typeof 42; }', 'number')
self._test('function f() { return typeof 42.42; }', 'number')
self._test('function f() { var g = function(){}; return typeof g; }', 'function')
self._test('function f() { return typeof {key: "value"}; }', 'object')
# not yet implemented: Symbol, BigInt

def test_return_function(self):
jsi = JSInterpreter('''
Expand All @@ -283,7 +353,7 @@ def test_null(self):
def test_undefined(self):
self._test('function f() { return undefined === undefined; }', True)
self._test('function f() { return undefined; }', JS_Undefined)
self._test('function f() {return undefined ?? 42; }', 42)
self._test('function f() { return undefined ?? 42; }', 42)
self._test('function f() { let v; return v; }', JS_Undefined)
self._test('function f() { let v; return v**0; }', 1)
self._test('function f() { let v; return [v>42, v<=42, v&&42, 42&&v]; }',
Expand Down Expand Up @@ -324,6 +394,16 @@ def test_object(self):
self._test('function f() { let a; return a?.qq; }', JS_Undefined)
self._test('function f() { let a = {m1: 42, m2: 0 }; return a?.qq; }', JS_Undefined)

def test_indexing(self):
self._test('function f() { return [1, 2, 3, 4][3]}', 4)
self._test('function f() { return [1, [2, [3, [4]]]][1][1][1][0]}', 4)
self._test('function f() { var o = {1: 2, 3: 4}; return o[3]}', 4)
self._test('function f() { var o = {1: 2, 3: 4}; return o["3"]}', 4)
self._test('function f() { return [1, [2, {3: [4]}]][1][1]["3"][0]}', 4)
self._test('function f() { return [1, 2, 3, 4].length}', 4)
self._test('function f() { var o = {1: 2, 3: 4}; return o.length}', JS_Undefined)
self._test('function f() { var o = {1: 2, 3: 4}; o["length"] = 42; return o.length}', 42)

def test_regex(self):
self._test('function f() { let a=/,,[/,913,/](,)}/; }', None)

Expand Down Expand Up @@ -411,6 +491,13 @@ def test_join(self):
self._test(jsi, 't-e-s-t', args=[test_input, '-'])
self._test(jsi, '', args=[[], '-'])

self._test('function f(){return '
'[1, 1.0, "abc", {a: 1}, null, undefined, Infinity, NaN].join()}',
'1,1,abc,[object Object],,,Infinity,NaN')
self._test('function f(){return '
'[1, 1.0, "abc", {a: 1}, null, undefined, Infinity, NaN].join("~")}',
'1~1~abc~[object Object]~~~Infinity~NaN')

def test_split(self):
test_result = list('test')
tests = [
Expand All @@ -424,6 +511,18 @@ def test_split(self):
self._test(jsi, test_result, args=['t-e-s-t', '-'])
self._test(jsi, [''], args=['', '-'])
self._test(jsi, [], args=['', ''])
# RegExp split
self._test('function f(){return "test".split(/(?:)/)}',
['t', 'e', 's', 't'])
self._test('function f(){return "t-e-s-t".split(/[es-]+/)}',
['t', 't'])
# from MDN: surrogate pairs aren't handled: case 1 fails
# self._test('function f(){return "😄😄".split(/(?:)/)}',
# ['\ud83d', '\ude04', '\ud83d', '\ude04'])
# case 2 beats Py3.2: it gets the case 1 result
if sys.version_info >= (2, 6) and not ((3, 0) <= sys.version_info < (3, 3)):
self._test('function f(){return "😄😄".split(/(?:)/u)}',
['😄', '😄'])

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])
Expand Down Expand Up @@ -453,6 +552,40 @@ def test_slice(self):
self._test('function f(){return "012345678".slice(-1, 1)}', '')
self._test('function f(){return "012345678".slice(-3, -1)}', '67')

def test_pop(self):
# pop
self._test('function f(){var a = [0, 1, 2, 3, 4, 5, 6, 7, 8]; return [a.pop(), a]}',
[8, [0, 1, 2, 3, 4, 5, 6, 7]])
self._test('function f(){return [].pop()}', JS_Undefined)
# push
self._test('function f(){var a = [0, 1, 2]; return [a.push(3, 4), a]}',
[5, [0, 1, 2, 3, 4]])
self._test('function f(){var a = [0, 1, 2]; return [a.push(), a]}',
[3, [0, 1, 2]])

def test_shift(self):
# shift
self._test('function f(){var a = [0, 1, 2, 3, 4, 5, 6, 7, 8]; return [a.shift(), a]}',
[0, [1, 2, 3, 4, 5, 6, 7, 8]])
self._test('function f(){return [].shift()}', JS_Undefined)
# unshift
self._test('function f(){var a = [0, 1, 2]; return [a.unshift(3, 4), a]}',
[5, [3, 4, 0, 1, 2]])
self._test('function f(){var a = [0, 1, 2]; return [a.unshift(), a]}',
[3, [0, 1, 2]])

def test_forEach(self):
self._test('function f(){var ret = []; var l = [4, 2]; '
'var log = function(e,i,a){ret.push([e,i,a]);}; '
'l.forEach(log); '
'return [ret.length, ret[0][0], ret[1][1], ret[0][2]]}',
[2, 4, 1, [4, 2]])
self._test('function f(){var ret = []; var l = [4, 2]; '
'var log = function(e,i,a){this.push([e,i,a]);}; '
'l.forEach(log, ret); '
'return [ret.length, ret[0][0], ret[1][1], ret[0][2]]}',
[2, 4, 1, [4, 2]])


if __name__ == '__main__':
unittest.main()
54 changes: 45 additions & 9 deletions test/test_youtube_signature.py
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
#!/usr/bin/env python
# coding: utf-8

from __future__ import unicode_literals

Expand All @@ -12,6 +13,7 @@
import string

from youtube_dl.compat import (
compat_contextlib_suppress,
compat_open as open,
compat_str,
compat_urlretrieve,
Expand Down Expand Up @@ -50,23 +52,38 @@
(
'https://s.ytimg.com/yts/jsbin/html5player-en_US-vflBb0OQx.js',
84,
'123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQ0STUVWXYZ!"#$%&\'()*+,@./:;<=>'
'123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQ0STUVWXYZ!"#$%&\'()*+,@./:;<=>',
),
(
'https://s.ytimg.com/yts/jsbin/html5player-en_US-vfl9FYC6l.js',
83,
'123456789abcdefghijklmnopqr0tuvwxyzABCDETGHIJKLMNOPQRS>UVWXYZ!"#$%&\'()*+,-./:;<=F'
'123456789abcdefghijklmnopqr0tuvwxyzABCDETGHIJKLMNOPQRS>UVWXYZ!"#$%&\'()*+,-./:;<=F',
),
(
'https://s.ytimg.com/yts/jsbin/html5player-en_US-vflCGk6yw/html5player.js',
'4646B5181C6C3020DF1D9C7FCFEA.AD80ABF70C39BD369CCCAE780AFBB98FA6B6CB42766249D9488C288',
'82C8849D94266724DC6B6AF89BBFA087EACCD963.B93C07FBA084ACAEFCF7C9D1FD0203C6C1815B6B'
'82C8849D94266724DC6B6AF89BBFA087EACCD963.B93C07FBA084ACAEFCF7C9D1FD0203C6C1815B6B',
),
(
'https://s.ytimg.com/yts/jsbin/html5player-en_US-vflKjOTVq/html5player.js',
'312AA52209E3623129A412D56A40F11CB0AF14AE.3EE09501CB14E3BCDC3B2AE808BF3F1D14E7FBF12',
'112AA5220913623229A412D56A40F11CB0AF14AE.3EE0950FCB14EEBCDC3B2AE808BF331D14E7FBF3',
)
),
(
'https://www.youtube.com/s/player/6ed0d907/player_ias.vflset/en_US/base.js',
'2aq0aqSyOoJXtK73m-uME_jv7-pT15gOFC02RFkGMqWpzEICs69VdbwQ0LDp1v7j8xx92efCJlYFYb1sUkkBSPOlPmXgIARw8JQ0qOAOAA',
'AOq0QJ8wRAIgXmPlOPSBkkUs1bYFYlJCfe29xx8j7v1pDL2QwbdV96sCIEzpWqMGkFR20CFOg51Tp-7vj_EMu-m37KtXJoOySqa0',
),
(
'https://www.youtube.com/s/player/3bb1f723/player_ias.vflset/en_US/base.js',
'2aq0aqSyOoJXtK73m-uME_jv7-pT15gOFC02RFkGMqWpzEICs69VdbwQ0LDp1v7j8xx92efCJlYFYb1sUkkBSPOlPmXgIARw8JQ0qOAOAA',
'MyOSJXtKI3m-uME_jv7-pT12gOFC02RFkGoqWpzE0Cs69VdbwQ0LDp1v7j8xx92efCJlYFYb1sUkkBSPOlPmXgIARw8JQ0qOAOAA',
),
(
'https://www.youtube.com/s/player/2f1832d2/player_ias.vflset/en_US/base.js',
'2aq0aqSyOoJXtK73m-uME_jv7-pT15gOFC02RFkGMqWpzEICs69VdbwQ0LDp1v7j8xx92efCJlYFYb1sUkkBSPOlPmXgIARw8JQ0qOAOAA',
'0QJ8wRAIgXmPlOPSBkkUs1bYFYlJCfe29xxAj7v1pDL0QwbdV96sCIEzpWqMGkFR20CFOg51Tp-7vj_EMu-m37KtXJ2OySqa0q',
),
]

_NSIG_TESTS = [
Expand Down Expand Up @@ -142,6 +159,10 @@
'https://www.youtube.com/s/player/5a3b6271/player_ias.vflset/en_US/base.js',
'B2j7f_UPT4rfje85Lu_e', 'm5DmNymaGQ5RdQ',
),
(
'https://www.youtube.com/s/player/7a062b77/player_ias.vflset/en_US/base.js',
'NRcE3y3mVtm_cV-W', 'VbsCYUATvqlt5w',
),
(
'https://www.youtube.com/s/player/dac945fd/player_ias.vflset/en_US/base.js',
'o8BkRxXhuYsBCWi6RplPdP', '3Lx32v_hmzTm6A',
Expand All @@ -154,6 +175,10 @@
'https://www.youtube.com/s/player/cfa9e7cb/player_ias.vflset/en_US/base.js',
'qO0NiMtYQ7TeJnfFG2', 'k9cuJDHNS5O7kQ',
),
(
'https://www.youtube.com/s/player/8c7583ff/player_ias.vflset/en_US/base.js',
'1wWCVpRR96eAmMI87L', 'KSkWAVv1ZQxC3A',
),
(
'https://www.youtube.com/s/player/b7910ca8/player_ias.vflset/en_US/base.js',
'_hXMCwMt9qE310D', 'LoZMgkkofRMCZQ',
Expand Down Expand Up @@ -182,6 +207,18 @@
'https://www.youtube.com/s/player/b12cc44b/player_ias.vflset/en_US/base.js',
'keLa5R2U00sR9SQK', 'N1OGyujjEwMnLw',
),
(
'https://www.youtube.com/s/player/3bb1f723/player_ias.vflset/en_US/base.js',
'gK15nzVyaXE9RsMP3z', 'ZFFWFLPWx9DEgQ',
),
(
'https://www.youtube.com/s/player/f8f53e1a/player_ias.vflset/en_US/base.js',
'VTQOUOv0mCIeJ7i8kZB', 'kcfD8wy0sNLyNQ',
),
(
'https://www.youtube.com/s/player/2f1832d2/player_ias.vflset/en_US/base.js',
'YWt1qdbe8SAfkoPHW5d', 'RrRjWQOJmBiP',
),
]


Expand Down Expand Up @@ -216,11 +253,9 @@ def setUp(self):
os.mkdir(self.TESTDATA_DIR)

def tearDown(self):
try:
with compat_contextlib_suppress(OSError):
for f in os.listdir(self.TESTDATA_DIR):
os.remove(f)
except OSError:
pass


def t_factory(name, sig_func, url_pattern):
Expand Down Expand Up @@ -254,11 +289,12 @@ def signature(jscode, sig_input):

def n_sig(jscode, sig_input):
funcname = YoutubeIE(FakeYDL())._extract_n_function_name(jscode)
return JSInterpreter(jscode).call_function(funcname, sig_input)
return JSInterpreter(jscode).call_function(
funcname, sig_input, _ytdl_do_not_return=sig_input)


make_sig_test = t_factory(
'signature', signature, re.compile(r'.*-(?P<id>[a-zA-Z0-9_-]+)(?:/watch_as3|/html5player)?\.[a-z]+$'))
'signature', signature, re.compile(r'.*(?:-|/player/)(?P<id>[a-zA-Z0-9_-]+)(?:/.+\.js|(?:/watch_as3|/html5player)?\.[a-z]+)$'))
for test_spec in _SIG_TESTS:
make_sig_test(*test_spec)

Expand Down
2 changes: 1 addition & 1 deletion youtube_dl/extractor/common.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -3170,7 +3170,7 @@ def _parse_jwplayer_formats(self, jwplayer_sources_data, video_id=None,
# See com/longtailvideo/jwplayer/media/RTMPMediaProvider.as
# of jwplayer.flash.swf
rtmp_url_parts = re.split(
r'((?:mp4|mp3|flv):)', source_url, 1)
r'((?:mp4|mp3|flv):)', source_url, maxsplit=1)
if len(rtmp_url_parts) == 3:
rtmp_url, prefix, play_path = rtmp_url_parts
a_format.update({
Expand Down
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