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[compat] Replace deficient ChainMap class in Py3.3 and earlier
ed5c44e7b7
pull/4811/head
pukkandan 2 years ago
parent 05deb747bb
commit 1ac7f46184
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GPG Key ID: 7EEE9E1E817D0A39
4 changed files with 93 additions and 45 deletions
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2
README.md
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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
# NEW FEATURES
* Merged with **youtube-dl v2021.12.17+ [commit/b0a60ce](https://github.com/ytdl-org/youtube-dl/commit/b0a60ce2032172aeaaf27fe3866ab72768f10cb2)**<!--([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)
* Merged with **youtube-dl v2021.12.17+ [commit/ed5c44e](https://github.com/ytdl-org/youtube-dl/commit/ed5c44e7b74ac77f87ca5ed6cb5e964a0c6a0678)**<!--([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)
* **[SponsorBlock Integration](#sponsorblock-options)**: You can mark/remove sponsor sections in youtube videos by utilizing the [SponsorBlock](https://sponsor.ajay.app) API

35
test/test_jsinterp.py
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@ -71,6 +71,9 @@ class TestJSInterpreter(unittest.TestCase):
jsi = JSInterpreter('function f(){return 0 ?? 42;}')
self.assertEqual(jsi.call_function('f'), 0)
jsi = JSInterpreter('function f(){return "life, the universe and everything" < 42;}')
self.assertFalse(jsi.call_function('f'))
def test_array_access(self):
jsi = JSInterpreter('function f(){var x = [1,2,3]; x[0] = 4; x[0] = 5; x[2.0] = 7; return x;}')
self.assertEqual(jsi.call_function('f'), [5, 2, 7])
@ -193,6 +196,30 @@ class TestJSInterpreter(unittest.TestCase):
''')
self.assertEqual(jsi.call_function('x'), 10)
def test_catch(self):
jsi = JSInterpreter('''
function x() { try{throw 10} catch(e){return 5} }
''')
self.assertEqual(jsi.call_function('x'), 5)
def test_finally(self):
jsi = JSInterpreter('''
function x() { try{throw 10} finally {return 42} }
''')
self.assertEqual(jsi.call_function('x'), 42)
jsi = JSInterpreter('''
function x() { try{throw 10} catch(e){return 5} finally {return 42} }
''')
self.assertEqual(jsi.call_function('x'), 42)
def test_nested_try(self):
jsi = JSInterpreter('''
function x() {try {
try{throw 10} finally {throw 42}
} catch(e){return 5} }
''')
self.assertEqual(jsi.call_function('x'), 5)
def test_for_loop_continue(self):
jsi = JSInterpreter('''
function x() { a=0; for (i=0; i-10; i++) { continue; a++ } return a }
@ -205,6 +232,14 @@ class TestJSInterpreter(unittest.TestCase):
''')
self.assertEqual(jsi.call_function('x'), 0)
def test_for_loop_try(self):
jsi = JSInterpreter('''
function x() {
for (i=0; i-10; i++) { try { if (i == 5) throw i} catch {return 10} finally {break} };
return 42 }
''')
self.assertEqual(jsi.call_function('x'), 42)
def test_literal_list(self):
jsi = JSInterpreter('''
function x() { return [1, 2, "asdf", [5, 6, 7]][3] }

8
yt_dlp/YoutubeDL.py
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@ -2528,9 +2528,6 @@ class YoutubeDL:
'--live-from-start is passed, but there are no formats that can be downloaded from the start. '
'If you want to download from the current time, use --no-live-from-start'))
if not formats:
self.raise_no_formats(info_dict)
def is_wellformed(f):
url = f.get('url')
if not url:
@ -2543,7 +2540,10 @@ class YoutubeDL:
return True
# Filter out malformed formats for better extraction robustness
formats = list(filter(is_wellformed, formats))
formats = list(filter(is_wellformed, formats or []))
if not formats:
self.raise_no_formats(info_dict)
formats_dict = {}

93
yt_dlp/jsinterp.py
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@ -72,6 +72,8 @@ def _js_comp_op(op):
def wrapped(a, b):
if JS_Undefined in (a, b):
return False
if isinstance(a, str) or isinstance(b, str):
return op(str(a or 0), str(b or 0))
return op(a or 0, b or 0)
return wrapped
@ -268,7 +270,9 @@ class JSInterpreter:
yield expr[start:]
@classmethod
def _separate_at_paren(cls, expr, delim):
def _separate_at_paren(cls, expr, delim=None):
if delim is None:
delim = expr and _MATCHING_PARENS[expr[0]]
separated = list(cls._separate(expr, delim, 1))
if len(separated) < 2:
raise cls.Exception(f'No terminating paren {delim}', expr)
@ -347,7 +351,7 @@ class JSInterpreter:
if expr.startswith('new '):
obj = expr[4:]
if obj.startswith('Date('):
left, right = self._separate_at_paren(obj[4:], ')')
left, right = self._separate_at_paren(obj[4:])
expr = unified_timestamp(
self.interpret_expression(left, local_vars, allow_recursion), False)
if not expr:
@ -361,8 +365,8 @@ class JSInterpreter:
return None, should_return
if expr.startswith('{'):
inner, outer = self._separate_at_paren(expr, '}')
# Look for Map first
inner, outer = self._separate_at_paren(expr)
# try for object expression (Map)
sub_expressions = [list(self._separate(sub_expr.strip(), ':', 1)) for sub_expr in self._separate(inner)]
if all(len(sub_expr) == 2 for sub_expr in sub_expressions):
def dict_item(key, val):
@ -380,7 +384,7 @@ class JSInterpreter:
expr = self._dump(inner, local_vars) + outer
if expr.startswith('('):
inner, outer = self._separate_at_paren(expr, ')')
inner, outer = self._separate_at_paren(expr)
inner, should_abort = self.interpret_statement(inner, local_vars, allow_recursion)
if not outer or should_abort:
return inner, should_abort or should_return
@ -388,53 +392,62 @@ class JSInterpreter:
expr = self._dump(inner, local_vars) + outer
if expr.startswith('['):
inner, outer = self._separate_at_paren(expr, ']')
inner, outer = self._separate_at_paren(expr)
name = self._named_object(local_vars, [
self.interpret_expression(item, local_vars, allow_recursion)
for item in self._separate(inner)])
expr = name + outer
m = re.match(rf'''(?x)
(?P<try>try|finally)\s*|
(?P<catch>catch\s*(?P<err>\(\s*{_NAME_RE}\s*\)))|
(?P<switch>switch)\s*\(|
(?P<for>for)\s*\(|''', expr)
if m and m.group('try'):
if expr[m.end()] == '{':
try_expr, expr = self._separate_at_paren(expr[m.end():], '}')
else:
try_expr, expr = expr[m.end() - 1:], ''
m = re.match(r'''(?x)
(?P<try>try)\s*\{|
(?P<switch>switch)\s*\(|
(?P<for>for)\s*\(
''', expr)
md = m.groupdict() if m else {}
if md.get('try'):
try_expr, expr = self._separate_at_paren(expr[m.end() - 1:])
err = None
try:
ret, should_abort = self.interpret_statement(try_expr, local_vars, allow_recursion)
if should_abort:
return ret, True
except JS_Throw as e:
local_vars[self._EXC_NAME] = e.error
except Exception as e:
# XXX: This works for now, but makes debugging future issues very hard
local_vars[self._EXC_NAME] = e
ret, should_abort = self.interpret_statement(expr, local_vars, allow_recursion)
return ret, should_abort or should_return
elif m and m.group('catch'):
catch_expr, expr = self._separate_at_paren(expr[m.end():], '}')
if self._EXC_NAME in local_vars:
catch_vars = local_vars.new_child({m.group('err'): local_vars.pop(self._EXC_NAME)})
ret, should_abort = self.interpret_statement(catch_expr, catch_vars, allow_recursion)
err = e
pending = (None, False)
m = re.match(r'catch\s*(?P<err>\(\s*{_NAME_RE}\s*\))?\{{'.format(**globals()), expr)
if m:
sub_expr, expr = self._separate_at_paren(expr[m.end() - 1:])
if err:
catch_vars = {}
if m.group('err'):
catch_vars[m.group('err')] = err.error if isinstance(err, JS_Throw) else err
catch_vars = local_vars.new_child(catch_vars)
err, pending = None, self.interpret_statement(sub_expr, catch_vars, allow_recursion)
m = re.match(r'finally\s*\{', expr)
if m:
sub_expr, expr = self._separate_at_paren(expr[m.end() - 1:])
ret, should_abort = self.interpret_statement(sub_expr, local_vars, allow_recursion)
if should_abort:
return ret, True
ret, should_abort = self.interpret_statement(expr, local_vars, allow_recursion)
return ret, should_abort or should_return
ret, should_abort = pending
if should_abort:
return ret, True
if err:
raise err
elif m and m.group('for'):
constructor, remaining = self._separate_at_paren(expr[m.end() - 1:], ')')
elif md.get('for'):
constructor, remaining = self._separate_at_paren(expr[m.end() - 1:])
if remaining.startswith('{'):
body, expr = self._separate_at_paren(remaining, '}')
body, expr = self._separate_at_paren(remaining)
else:
switch_m = re.match(r'switch\s*\(', remaining) # FIXME
if switch_m:
switch_val, remaining = self._separate_at_paren(remaining[switch_m.end() - 1:], ')')
switch_val, remaining = self._separate_at_paren(remaining[switch_m.end() - 1:])
body, expr = self._separate_at_paren(remaining, '}')
body = 'switch(%s){%s}' % (switch_val, body)
else:
@ -453,11 +466,9 @@ class JSInterpreter:
except JS_Continue:
pass
self.interpret_expression(increment, local_vars, allow_recursion)
ret, should_abort = self.interpret_statement(expr, local_vars, allow_recursion)
return ret, should_abort or should_return
elif m and m.group('switch'):
switch_val, remaining = self._separate_at_paren(expr[m.end() - 1:], ')')
elif md.get('switch'):
switch_val, remaining = self._separate_at_paren(expr[m.end() - 1:])
switch_val = self.interpret_expression(switch_val, local_vars, allow_recursion)
body, expr = self._separate_at_paren(remaining, '}')
items = body.replace('default:', 'case default:').split('case ')[1:]
@ -480,6 +491,8 @@ class JSInterpreter:
break
if matched:
break
if md:
ret, should_abort = self.interpret_statement(expr, local_vars, allow_recursion)
return ret, should_abort or should_return
@ -584,7 +597,7 @@ class JSInterpreter:
member = self.interpret_expression(m.group('member2'), local_vars, allow_recursion)
arg_str = expr[m.end():]
if arg_str.startswith('('):
arg_str, remaining = self._separate_at_paren(arg_str, ')')
arg_str, remaining = self._separate_at_paren(arg_str)
else:
arg_str, remaining = None, arg_str
@ -769,7 +782,7 @@ class JSInterpreter:
\((?P<args>[^)]*)\)\s*
(?P<code>{.+})''' % {'name': re.escape(funcname)},
self.code)
code, _ = self._separate_at_paren(func_m.group('code'), '}')
code, _ = self._separate_at_paren(func_m.group('code'))
if func_m is None:
raise self.Exception(f'Could not find JS function "{funcname}"')
return [x.strip() for x in func_m.group('args').split(',')], code
@ -784,7 +797,7 @@ class JSInterpreter:
if mobj is None:
break
start, body_start = mobj.span()
body, remaining = self._separate_at_paren(code[body_start - 1:], '}')
body, remaining = self._separate_at_paren(code[body_start - 1:])
name = self._named_object(local_vars, self.extract_function_from_code(
[x.strip() for x in mobj.group('args').split(',')],
body, local_vars, *global_stack))

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