diff options
| -rw-r--r-- | test/test_jsinterp.py | 32 | ||||
| -rw-r--r-- | test/test_youtube_signature.py | 4 | ||||
| -rw-r--r-- | youtube_dl/jsinterp.py | 21 |
3 files changed, 54 insertions, 3 deletions
diff --git a/test/test_jsinterp.py b/test/test_jsinterp.py index 5121c8cf8..c47def737 100644 --- a/test/test_jsinterp.py +++ b/test/test_jsinterp.py @@ -158,6 +158,38 @@ class TestJSInterpreter(unittest.TestCase): self.assertEqual(jsi.call_function('z'), 5) self.assertEqual(jsi.call_function('y'), 2) + def test_if(self): + jsi = JSInterpreter(''' + function x() { + let a = 9; + if (0==0) {a++} + return a + }''') + self.assertEqual(jsi.call_function('x'), 10) + + jsi = JSInterpreter(''' + function x() { + if (0==0) {return 10} + }''') + self.assertEqual(jsi.call_function('x'), 10) + + jsi = JSInterpreter(''' + function x() { + if (0!=0) {return 1} + else {return 10} + }''') + self.assertEqual(jsi.call_function('x'), 10) + + """ # Unsupported + jsi = JSInterpreter(''' + function x() { + if (0!=0) {return 1} + else if (1==0) {return 2} + else {return 10} + }''') + self.assertEqual(jsi.call_function('x'), 10) + """ + def test_for_loop(self): # function x() { a=0; for (i=0; i-10; i++) {a++} a } jsi = JSInterpreter(''' diff --git a/test/test_youtube_signature.py b/test/test_youtube_signature.py index 4e678cae0..ac37ffa45 100644 --- a/test/test_youtube_signature.py +++ b/test/test_youtube_signature.py @@ -135,6 +135,10 @@ _NSIG_TESTS = [ 'https://www.youtube.com/s/player/5a3b6271/player_ias.vflset/en_US/base.js', 'B2j7f_UPT4rfje85Lu_e', 'm5DmNymaGQ5RdQ', ), + ( + 'https://www.youtube.com/s/player/dac945fd/player_ias.vflset/en_US/base.js', + 'o8BkRxXhuYsBCWi6RplPdP', '3Lx32v_hmzTm6A', + ), ] diff --git a/youtube_dl/jsinterp.py b/youtube_dl/jsinterp.py index 530a705b4..9a3b8d7f2 100644 --- a/youtube_dl/jsinterp.py +++ b/youtube_dl/jsinterp.py @@ -214,7 +214,7 @@ class JSInterpreter(object): def __init__(self, msg, *args, **kwargs): expr = kwargs.pop('expr', None) if expr is not None: - msg = '{0} in: {1!r:.100}'.format(msg.rstrip(), expr) + msg = '{0} in: {1!r}'.format(msg.rstrip(), expr[:100]) super(JSInterpreter.Exception, self).__init__(msg, *args, **kwargs) @classmethod @@ -268,7 +268,7 @@ class JSInterpreter(object): elif in_quote == '/' and char in '[]': in_regex_char_group = char == '[' escaping = not escaping and in_quote and char == '\\' - after_op = not in_quote and (char in cls.OP_CHARS or char == '[' or (char.isspace() and after_op)) + after_op = not in_quote and (char in cls.OP_CHARS or (char.isspace() and after_op)) if char != delim[pos] or any(counters.values()) or in_quote: pos = skipping = 0 @@ -301,7 +301,7 @@ class JSInterpreter(object): separated = list(cls._separate(expr, delim, 1)) if len(separated) < 2: - raise cls.Exception('No terminating paren {delim} in {expr:.100}'.format(**locals())) + raise cls.Exception('No terminating paren {delim} in {expr}'.format(**locals())) return separated[0][1:].strip(), separated[1].strip() @staticmethod @@ -428,10 +428,25 @@ class JSInterpreter(object): m = re.match(r'''(?x) (?P<try>try)\s*\{| + (?P<if>if)\s*\(| (?P<switch>switch)\s*\(| (?P<for>for)\s*\( ''', expr) md = m.groupdict() if m else {} + if md.get('if'): + cndn, expr = self._separate_at_paren(expr[m.end() - 1:]) + if_expr, expr = self._separate_at_paren(expr.lstrip()) + # TODO: "else if" is not handled + else_expr = None + m = re.match(r'else\s*{', expr) + if m: + else_expr, expr = self._separate_at_paren(expr[m.end() - 1:]) + cndn = _js_ternary(self.interpret_expression(cndn, local_vars, allow_recursion)) + ret, should_abort = self.interpret_statement( + if_expr if cndn else else_expr, local_vars, allow_recursion) + if should_abort: + return ret, True + if md.get('try'): try_expr, expr = self._separate_at_paren(expr[m.end() - 1:]) err = None |