mirror of https://github.com/yt-dlp/yt-dlp.git
[jsinterp] Bring or-par with youtube-dl
Partially cherry-picked from: d231b56717
Authored by pukkandan, dirkf
This commit is contained in:
pukkandan
parent
d711839760
commit
49b4ceaedf
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@ -71,7 +71,7 @@ yt-dlp is a [youtube-dl](https://github.com/ytdl-org/youtube-dl) fork based on t
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# NEW FEATURES
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* Merged with **youtube-dl v2021.12.17+ [commit/adb5294](https://github.com/ytdl-org/youtube-dl/commit/adb5294177265ba35b45746dbb600965076ed150)**<!--([exceptions](https://github.com/yt-dlp/yt-dlp/issues/21))--> and **youtube-dlc v2020.11.11-3+ [commit/f9401f2](https://github.com/blackjack4494/yt-dlc/commit/f9401f2a91987068139c5f757b12fc711d4c0cee)**: You get all the features and patches of [youtube-dlc](https://github.com/blackjack4494/yt-dlc) in addition to the latest [youtube-dl](https://github.com/ytdl-org/youtube-dl)
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* Merged with **youtube-dl v2021.12.17+ [commit/d231b56](https://github.com/ytdl-org/youtube-dl/commit/d231b56717c73ee597d2e077d11b69ed48a1b02d)**<!--([exceptions](https://github.com/yt-dlp/yt-dlp/issues/21))--> and **youtube-dlc v2020.11.11-3+ [commit/f9401f2](https://github.com/blackjack4494/yt-dlc/commit/f9401f2a91987068139c5f757b12fc711d4c0cee)**: You get all the features and patches of [youtube-dlc](https://github.com/blackjack4494/yt-dlc) in addition to the latest [youtube-dl](https://github.com/ytdl-org/youtube-dl)
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* **[SponsorBlock Integration](#sponsorblock-options)**: You can mark/remove sponsor sections in youtube videos by utilizing the [SponsorBlock](https://sponsor.ajay.app) API
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@ -48,6 +48,9 @@ class TestJSInterpreter(unittest.TestCase):
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jsi = JSInterpreter('function f(){return 1 << 5;}')
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self.assertEqual(jsi.call_function('f'), 32)
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jsi = JSInterpreter('function f(){return 2 ** 5}')
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self.assertEqual(jsi.call_function('f'), 32)
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jsi = JSInterpreter('function f(){return 19 & 21;}')
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self.assertEqual(jsi.call_function('f'), 17)
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@ -57,6 +60,12 @@ class TestJSInterpreter(unittest.TestCase):
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jsi = JSInterpreter('function f(){return []? 2+3: 4;}')
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self.assertEqual(jsi.call_function('f'), 5)
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jsi = JSInterpreter('function f(){return 1 == 2}')
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self.assertEqual(jsi.call_function('f'), False)
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jsi = JSInterpreter('function f(){return 0 && 1 || 2;}')
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self.assertEqual(jsi.call_function('f'), 2)
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def test_array_access(self):
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jsi = JSInterpreter('function f(){var x = [1,2,3]; x[0] = 4; x[0] = 5; x[2.0] = 7; return x;}')
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self.assertEqual(jsi.call_function('f'), [5, 2, 7])
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@ -114,6 +123,16 @@ class TestJSInterpreter(unittest.TestCase):
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}''')
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self.assertEqual(jsi.call_function('x'), [20, 20, 30, 40, 50])
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def test_builtins(self):
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jsi = JSInterpreter('''
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function x() { return new Date('Wednesday 31 December 1969 18:01:26 MDT') - 0; }
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''')
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self.assertEqual(jsi.call_function('x'), 86000)
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jsi = JSInterpreter('''
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function x(dt) { return new Date(dt) - 0; }
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''')
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self.assertEqual(jsi.call_function('x', 'Wednesday 31 December 1969 18:01:26 MDT'), 86000)
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def test_call(self):
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jsi = JSInterpreter('''
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function x() { return 2; }
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@ -188,6 +207,17 @@ class TestJSInterpreter(unittest.TestCase):
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''')
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self.assertEqual(jsi.call_function('x'), 7)
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jsi = JSInterpreter('''
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function x() { a=5; return (a -= 1, a+=3, a); }
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''')
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self.assertEqual(jsi.call_function('x'), 7)
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def test_void(self):
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jsi = JSInterpreter('''
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function x() { return void 42; }
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''')
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self.assertEqual(jsi.call_function('x'), None)
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def test_return_function(self):
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jsi = JSInterpreter('''
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function x() { return [1, function(){return 1}][1] }
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@ -109,6 +109,7 @@ _NSIG_TESTS = [
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class TestPlayerInfo(unittest.TestCase):
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def test_youtube_extract_player_info(self):
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PLAYER_URLS = (
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('https://www.youtube.com/s/player/4c3f79c5/player_ias.vflset/en_US/base.js', '4c3f79c5'),
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('https://www.youtube.com/s/player/64dddad9/player_ias.vflset/en_US/base.js', '64dddad9'),
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('https://www.youtube.com/s/player/64dddad9/player_ias.vflset/fr_FR/base.js', '64dddad9'),
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('https://www.youtube.com/s/player/64dddad9/player-plasma-ias-phone-en_US.vflset/base.js', '64dddad9'),
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@ -17,6 +17,8 @@ from .utils import (
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)
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_NAME_RE = r'[a-zA-Z_$][\w$]*'
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# Ref: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Operator_Precedence
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_OPERATORS = { # None => Defined in JSInterpreter._operator
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'?': None,
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@ -26,23 +28,31 @@ _OPERATORS = { # None => Defined in JSInterpreter._operator
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'|': operator.or_,
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'^': operator.xor,
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# FIXME: This should actually be below comparision
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'>>': operator.rshift,
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'<<': operator.lshift,
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'===': operator.is_,
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'!==': operator.is_not,
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'==': operator.eq,
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'!=': operator.ne,
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'<=': operator.le,
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'>=': operator.ge,
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'<': operator.lt,
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'>': operator.gt,
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'>>': operator.rshift,
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'<<': operator.lshift,
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'+': operator.add,
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'-': operator.sub,
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'*': operator.mul,
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'/': operator.truediv,
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'%': operator.mod,
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'**': operator.pow,
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}
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_COMP_OPERATORS = {'===', '!==', '==', '!=', '<=', '>=', '<', '>'}
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_MATCHING_PARENS = dict(zip('({[', ')}]'))
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_QUOTES = '\'"'
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@ -81,7 +91,7 @@ class LocalNameSpace(collections.ChainMap):
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class Debugger:
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import sys
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ENABLED = 'pytest' in sys.modules
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ENABLED = False and 'pytest' in sys.modules
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@staticmethod
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def write(*args, level=100):
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@ -200,7 +210,7 @@ class JSInterpreter:
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if should_return:
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return ret, should_return
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m = re.match(r'(?P<var>var\s)|return(?:\s+|$)', stmt)
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m = re.match(r'(?P<var>(?:var|const|let)\s)|return(?:\s+|$)', stmt)
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if m:
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expr = stmt[len(m.group(0)):].strip()
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should_return = not m.group('var')
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@ -218,13 +228,18 @@ class JSInterpreter:
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obj = expr[4:]
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if obj.startswith('Date('):
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left, right = self._separate_at_paren(obj[4:], ')')
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expr = unified_timestamp(left[1:-1], False)
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expr = unified_timestamp(
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self.interpret_expression(left, local_vars, allow_recursion), False)
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if not expr:
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raise self.Exception(f'Failed to parse date {left!r}', expr)
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expr = self._dump(int(expr * 1000), local_vars) + right
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else:
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raise self.Exception(f'Unsupported object {obj}', expr)
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if expr.startswith('void '):
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left = self.interpret_expression(expr[5:], local_vars, allow_recursion)
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return None, should_return
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if expr.startswith('{'):
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inner, outer = self._separate_at_paren(expr, '}')
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inner, should_abort = self.interpret_statement(inner, local_vars, allow_recursion)
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@ -307,7 +322,8 @@ class JSInterpreter:
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if default:
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matched = matched or case == 'default'
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elif not matched:
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matched = case != 'default' and switch_val == self.interpret_expression(case, local_vars, allow_recursion)
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matched = (case != 'default'
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and switch_val == self.interpret_expression(case, local_vars, allow_recursion))
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if not matched:
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continue
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try:
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@ -347,7 +363,7 @@ class JSInterpreter:
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m = re.match(fr'''(?x)
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(?P<assign>
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(?P<out>{_NAME_RE})(?:\[(?P<index>[^\]]+?)\])?\s*
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(?P<op>{"|".join(map(re.escape, _OPERATORS))})?
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(?P<op>{"|".join(map(re.escape, set(_OPERATORS) - _COMP_OPERATORS))})?
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=(?P<expr>.*)$
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)|(?P<return>
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(?!if|return|true|false|null|undefined)(?P<name>{_NAME_RE})$
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@ -397,12 +413,14 @@ class JSInterpreter:
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for op in _OPERATORS:
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separated = list(self._separate(expr, op))
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if len(separated) < 2:
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continue
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right_expr = separated.pop()
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while op == '-' and len(separated) > 1 and not separated[-1].strip():
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right_expr = f'-{right_expr}'
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while op in '<>*-' and len(separated) > 1 and not separated[-1].strip():
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separated.pop()
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right_expr = f'{op}{right_expr}'
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if op != '-':
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right_expr = f'{separated.pop()}{op}{right_expr}'
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if not separated:
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continue
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left_val = self.interpret_expression(op.join(separated), local_vars, allow_recursion)
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return self._operator(op, 0 if left_val is None else left_val,
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right_expr, expr, local_vars, allow_recursion), should_return
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@ -564,8 +582,8 @@ class JSInterpreter:
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# Currently, it only supports function definitions
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fields_m = re.finditer(
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r'''(?x)
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(?P<key>%s)\s*:\s*function\s*\((?P<args>[a-z,]+)\){(?P<code>[^}]+)}
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''' % _FUNC_NAME_RE,
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(?P<key>%s)\s*:\s*function\s*\((?P<args>(?:%s|,)*)\){(?P<code>[^}]+)}
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''' % (_FUNC_NAME_RE, _NAME_RE),
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fields)
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for f in fields_m:
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argnames = f.group('args').split(',')
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@ -580,7 +598,7 @@ class JSInterpreter:
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(?:
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function\s+%(name)s|
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[{;,]\s*%(name)s\s*=\s*function|
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var\s+%(name)s\s*=\s*function
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(?:var|const|let)\s+%(name)s\s*=\s*function
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)\s*
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\((?P<args>[^)]*)\)\s*
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(?P<code>{.+})''' % {'name': re.escape(funcname)},
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@ -615,10 +633,8 @@ class JSInterpreter:
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argnames = tuple(argnames)
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def resf(args, kwargs={}, allow_recursion=100):
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global_stack[0].update({
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**dict(itertools.zip_longest(argnames, args, fillvalue=None)),
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**kwargs
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})
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global_stack[0].update(itertools.zip_longest(argnames, args, fillvalue=None))
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global_stack[0].update(kwargs)
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var_stack = LocalNameSpace(*global_stack)
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ret, should_abort = self.interpret_statement(code.replace('\n', ''), var_stack, allow_recursion - 1)
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if should_abort:
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