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							| 
						 | 
				
			
			@ -24,3 +24,4 @@ updates_key.pem
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*.flv
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*.mp4
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*.part
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test/testdata
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| 
						 | 
				
			
			
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										80
									
								
								test/test_youtube_signature.py
									
										
									
									
									
										Normal file
									
								
							
							
						
						
									
										80
									
								
								test/test_youtube_signature.py
									
										
									
									
									
										Normal file
									
								
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			@ -0,0 +1,80 @@
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#!/usr/bin/env python
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import io
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import re
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import string
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import sys
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import unittest
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# Allow direct execution
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import os
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sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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from youtube_dl.extractor import YoutubeIE
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from youtube_dl.utils import compat_str, compat_urlretrieve
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_TESTS = [
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    (
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        u'https://s.ytimg.com/yts/jsbin/html5player-vflHOr_nV.js',
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        u'js',
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        86,
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        u'>=<;:/.-[+*)(\'&%$#"!ZYX0VUTSRQPONMLKJIHGFEDCBA\\yxwvutsrqponmlkjihgfedcba987654321',
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    ),
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    (
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        u'https://s.ytimg.com/yts/jsbin/html5player-vfldJ8xgI.js',
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        u'js',
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        85,
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        u'3456789a0cdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRS[UVWXYZ!"#$%&\'()*+,-./:;<=>?@',
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    ),
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    (
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        u'https://s.ytimg.com/yts/swfbin/watch_as3-vflg5GhxU.swf',
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        u'swf',
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        82,
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        u'23456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!?#$%&\'()*+,-./:;<=>"'
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    ),
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]
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class TestSignature(unittest.TestCase):
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    def setUp(self):
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        TEST_DIR = os.path.dirname(os.path.abspath(__file__))
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        self.TESTDATA_DIR = os.path.join(TEST_DIR, 'testdata')
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        if not os.path.exists(self.TESTDATA_DIR):
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            os.mkdir(self.TESTDATA_DIR)
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def make_testfunc(url, stype, sig_length, expected_sig):
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    basename = url.rpartition('/')[2]
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    m = re.match(r'.*-([a-zA-Z0-9_-]+)\.[a-z]+$', basename)
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    assert m, '%r should follow URL format' % basename
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    test_id = m.group(1)
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    def test_func(self):
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        fn = os.path.join(self.TESTDATA_DIR, basename)
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        if not os.path.exists(fn):
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            compat_urlretrieve(url, fn)
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        ie = YoutubeIE()
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        if stype == 'js':
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            with io.open(fn, encoding='utf-8') as testf:
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                jscode = testf.read()
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            func = ie._parse_sig_js(jscode)
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        else:
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            assert stype == 'swf'
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            with open(fn, 'rb') as testf:
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                swfcode = testf.read()
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            func = ie._parse_sig_swf(swfcode)
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        src_sig = compat_str(string.printable[:sig_length])
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        got_sig = func(src_sig)
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        self.assertEqual(got_sig, expected_sig)
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    test_func.__name__ = str('test_signature_' + stype + '_' + test_id)
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    setattr(TestSignature, test_func.__name__, test_func)
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for test_spec in _TESTS:
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    make_testfunc(*test_spec)
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if __name__ == '__main__':
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    unittest.main()
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			@ -1,11 +1,16 @@
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# coding: utf-8
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import collections
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import itertools
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import io
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import json
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import netrc
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import re
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import socket
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import itertools
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import xml.etree.ElementTree
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import string
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import struct
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import traceback
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import zlib
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from .common import InfoExtractor, SearchInfoExtractor
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from .subtitles import SubtitlesInfoExtractor
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			@ -393,6 +398,10 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
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        if YoutubePlaylistIE.suitable(url): return False
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        return re.match(cls._VALID_URL, url, re.VERBOSE) is not None
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    def __init__(self, *args, **kwargs):
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        super(YoutubeIE, self).__init__(*args, **kwargs)
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        self._jsplayer_cache = {}
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    def report_video_webpage_download(self, video_id):
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        """Report attempt to download video webpage."""
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        self.to_screen(u'%s: Downloading video webpage' % video_id)
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| 
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			@ -413,15 +422,565 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
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        """Indicate the download will use the RTMP protocol."""
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        self.to_screen(u'RTMP download detected')
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    def _decrypt_signature(self, s):
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    def _extract_signature_function(self, video_id, player_url):
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        id_m = re.match(r'.*-(?P<id>[^.]+)\.(?P<ext>[^.]+)$', player_url)
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        player_type = id_m.group('ext')
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        player_id = id_m.group('id')
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        if player_type == 'js':
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            code = self._download_webpage(
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                player_url, video_id,
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                note=u'Downloading %s player %s' % (player_type, jsplayer_id),
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                errnote=u'Download of %s failed' % player_url)
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            return self._parse_sig_js(code)
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        elif player_tpye == 'swf':
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            urlh = self._request_webpage(
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                player_url, video_id,
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                note=u'Downloading %s player %s' % (player_type, jsplayer_id),
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                errnote=u'Download of %s failed' % player_url)
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            code = urlh.read()
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            return self._parse_sig_swf(code)
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        else:
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            assert False, 'Invalid player type %r' % player_type
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    def _parse_sig_js(self, jscode):
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        funcname = self._search_regex(
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            r'signature=([a-zA-Z]+)', jscode,
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            u'Initial JS player signature function name')
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        functions = {}
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        def argidx(varname):
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            return string.lowercase.index(varname)
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        def interpret_statement(stmt, local_vars, allow_recursion=20):
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            if allow_recursion < 0:
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                raise ExctractorError(u'Recursion limit reached')
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            if stmt.startswith(u'var '):
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                stmt = stmt[len(u'var '):]
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            ass_m = re.match(r'^(?P<out>[a-z]+)(?:\[(?P<index>[^\]]+)\])?' +
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                             r'=(?P<expr>.*)$', stmt)
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            if ass_m:
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                if ass_m.groupdict().get('index'):
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                    def assign(val):
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                        lvar = local_vars[ass_m.group('out')]
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                        idx = interpret_expression(ass_m.group('index'),
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                                                   local_vars, allow_recursion)
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                        assert isinstance(idx, int)
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                        lvar[idx] = val
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                        return val
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                    expr = ass_m.group('expr')
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                else:
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                    def assign(val):
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                        local_vars[ass_m.group('out')] = val
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                        return val
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                    expr = ass_m.group('expr')
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            elif stmt.startswith(u'return '):
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                assign = lambda v: v
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                expr = stmt[len(u'return '):]
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            else:
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                raise ExtractorError(
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                    u'Cannot determine left side of statement in %r' % stmt)
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            v = interpret_expression(expr, local_vars, allow_recursion)
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            return assign(v)
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        def interpret_expression(expr, local_vars, allow_recursion):
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            if expr.isdigit():
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                return int(expr)
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            if expr.isalpha():
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                return local_vars[expr]
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            m = re.match(r'^(?P<in>[a-z]+)\.(?P<member>.*)$', expr)
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            if m:
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                member = m.group('member')
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                val = local_vars[m.group('in')]
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                if member == 'split("")':
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                    return list(val)
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                if member == 'join("")':
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                    return u''.join(val)
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                if member == 'length':
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                    return len(val)
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                if member == 'reverse()':
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                    return val[::-1]
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                slice_m = re.match(r'slice\((?P<idx>.*)\)', member)
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                if slice_m:
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                    idx = interpret_expression(
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                        slice_m.group('idx'), local_vars, allow_recursion-1)
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                    return val[idx:]
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            m = re.match(
 | 
			
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                r'^(?P<in>[a-z]+)\[(?P<idx>.+)\]$', expr)
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		||||
            if m:
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                val = local_vars[m.group('in')]
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                idx = interpret_expression(m.group('idx'), local_vars,
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                                           allow_recursion-1)
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                return val[idx]
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		||||
            m = re.match(r'^(?P<a>.+?)(?P<op>[%])(?P<b>.+?)$', expr)
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		||||
            if m:
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                a = interpret_expression(m.group('a'),
 | 
			
		||||
                                         local_vars, allow_recursion)
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		||||
                b = interpret_expression(m.group('b'),
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		||||
                                         local_vars, allow_recursion)
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                return a % b
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		||||
 | 
			
		||||
            m = re.match(
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		||||
                r'^(?P<func>[a-zA-Z]+)\((?P<args>[a-z0-9,]+)\)$', expr)
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		||||
            if m:
 | 
			
		||||
                fname = m.group('func')
 | 
			
		||||
                if fname not in functions:
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		||||
                    functions[fname] = extract_function(fname)
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		||||
                argvals = [int(v) if v.isdigit() else local_vars[v]
 | 
			
		||||
                           for v in m.group('args').split(',')]
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                return functions[fname](argvals)
 | 
			
		||||
            raise ExtractorError(u'Unsupported JS expression %r' % expr)
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		||||
 | 
			
		||||
        def extract_function(funcname):
 | 
			
		||||
            func_m = re.search(
 | 
			
		||||
                r'function ' + re.escape(funcname) +
 | 
			
		||||
                r'\((?P<args>[a-z,]+)\){(?P<code>[^}]+)}',
 | 
			
		||||
                jscode)
 | 
			
		||||
            argnames = func_m.group('args').split(',')
 | 
			
		||||
 | 
			
		||||
            def resf(args):
 | 
			
		||||
                local_vars = dict(zip(argnames, args))
 | 
			
		||||
                for stmt in func_m.group('code').split(';'):
 | 
			
		||||
                    res = interpret_statement(stmt, local_vars)
 | 
			
		||||
                return res
 | 
			
		||||
            return resf
 | 
			
		||||
 | 
			
		||||
        initial_function = extract_function(funcname)
 | 
			
		||||
        return lambda s: initial_function([s])
 | 
			
		||||
 | 
			
		||||
    def _parse_sig_swf(self, file_contents):
 | 
			
		||||
        if file_contents[1:3] != b'WS':
 | 
			
		||||
            raise ExtractorError(
 | 
			
		||||
                u'Not an SWF file; header is %r' % file_contents[:3])
 | 
			
		||||
        if file_contents[:1] == b'C':
 | 
			
		||||
            content = zlib.decompress(file_contents[8:])
 | 
			
		||||
        else:
 | 
			
		||||
            raise NotImplementedError(u'Unsupported compression format %r' %
 | 
			
		||||
                                      file_contents[:1])
 | 
			
		||||
 | 
			
		||||
        def extract_tags(content):
 | 
			
		||||
            pos = 0
 | 
			
		||||
            while pos < len(content):
 | 
			
		||||
                header16 = struct.unpack('<H', content[pos:pos+2])[0]
 | 
			
		||||
                pos += 2
 | 
			
		||||
                tag_code = header16 >> 6
 | 
			
		||||
                tag_len = header16 & 0x3f
 | 
			
		||||
                if tag_len == 0x3f:
 | 
			
		||||
                    tag_len = struct.unpack('<I', content[pos:pos+4])[0]
 | 
			
		||||
                    pos += 4
 | 
			
		||||
                assert pos+tag_len <= len(content)
 | 
			
		||||
                yield (tag_code, content[pos:pos+tag_len])
 | 
			
		||||
                pos += tag_len
 | 
			
		||||
 | 
			
		||||
        code_tag = next(tag
 | 
			
		||||
                        for tag_code, tag in extract_tags(content)
 | 
			
		||||
                        if tag_code == 82)
 | 
			
		||||
        p = code_tag.index(b'\0', 4) + 1
 | 
			
		||||
 | 
			
		||||
        # Parse ABC (AVM2 ByteCode)
 | 
			
		||||
        def read_int(data=None, pos=None):
 | 
			
		||||
            if hasattr(data, 'read'):
 | 
			
		||||
                assert pos is None
 | 
			
		||||
 | 
			
		||||
                res = 0
 | 
			
		||||
                shift = 0
 | 
			
		||||
                for _ in range(5):
 | 
			
		||||
                    buf = data.read(1)
 | 
			
		||||
                    assert len(buf) == 1
 | 
			
		||||
                    b = struct.unpack('<B', buf)[0]
 | 
			
		||||
                    res = res | ((b & 0x7f) << shift)
 | 
			
		||||
                    if b & 0x80 == 0:
 | 
			
		||||
                        break
 | 
			
		||||
                    shift += 7
 | 
			
		||||
                return res
 | 
			
		||||
 | 
			
		||||
            if data is None:
 | 
			
		||||
                data = code_tag
 | 
			
		||||
            if pos is None:
 | 
			
		||||
                pos = p
 | 
			
		||||
            res = 0
 | 
			
		||||
            shift = 0
 | 
			
		||||
            for _ in range(5):
 | 
			
		||||
                b = struct.unpack('<B', data[pos:pos+1])[0]
 | 
			
		||||
                pos += 1
 | 
			
		||||
                res = res | ((b & 0x7f) << shift)
 | 
			
		||||
                if b & 0x80 == 0:
 | 
			
		||||
                    break
 | 
			
		||||
                shift += 7
 | 
			
		||||
            return (res, pos)
 | 
			
		||||
        assert read_int(b'\x00', 0) == (0, 1)
 | 
			
		||||
        assert read_int(b'\x10', 0) == (16, 1)
 | 
			
		||||
        assert read_int(b'\x34', 0) == (0x34, 1)
 | 
			
		||||
        assert read_int(b'\xb4\x12', 0) == (0x12 * 0x80 + 0x34, 2)
 | 
			
		||||
        assert read_int(b'\xff\xff\xff\x00', 0) == (0x1fffff, 4)
 | 
			
		||||
 | 
			
		||||
        def u30(*args, **kwargs):
 | 
			
		||||
            res = read_int(*args, **kwargs)
 | 
			
		||||
            if isinstance(res, tuple):
 | 
			
		||||
                assert res[0] & 0xf0000000 == 0
 | 
			
		||||
            else:
 | 
			
		||||
                assert res & 0xf0000000 == 0
 | 
			
		||||
            return res
 | 
			
		||||
        u32 = read_int
 | 
			
		||||
 | 
			
		||||
        def s32(data=None, pos=None):
 | 
			
		||||
            v, pos = read_int(data, pos)
 | 
			
		||||
            if v & 0x80000000 != 0:
 | 
			
		||||
                v = - ((v ^ 0xffffffff) + 1)
 | 
			
		||||
            return (v, pos)
 | 
			
		||||
        assert s32(b'\xff\xff\xff\xff\x0f', 0) == (-1, 5)
 | 
			
		||||
 | 
			
		||||
        def string():
 | 
			
		||||
            slen, p = u30()
 | 
			
		||||
            return (code_tag[p:p+slen].decode('utf-8'), p + slen)
 | 
			
		||||
 | 
			
		||||
        def read_byte(data=None, pos=None):
 | 
			
		||||
            if data is None:
 | 
			
		||||
                data = code_tag
 | 
			
		||||
            if pos is None:
 | 
			
		||||
                pos = p
 | 
			
		||||
            res = struct.unpack('<B', data[pos:pos+1])[0]
 | 
			
		||||
            return (res, pos + 1)
 | 
			
		||||
 | 
			
		||||
        # minor_version + major_version
 | 
			
		||||
        p += 2 + 2
 | 
			
		||||
 | 
			
		||||
        # Constant pool
 | 
			
		||||
        int_count, p = u30()
 | 
			
		||||
        for _c in range(1, int_count):
 | 
			
		||||
            _, p = s32()
 | 
			
		||||
        uint_count, p = u30()
 | 
			
		||||
        for _c in range(1, uint_count):
 | 
			
		||||
            _, p = u32()
 | 
			
		||||
        double_count, p = u30()
 | 
			
		||||
        p += (double_count-1) * 8
 | 
			
		||||
        string_count, p = u30()
 | 
			
		||||
        constant_strings = [u'']
 | 
			
		||||
        for _c in range(1, string_count):
 | 
			
		||||
            s, p = string()
 | 
			
		||||
            constant_strings.append(s)
 | 
			
		||||
        namespace_count, p = u30()
 | 
			
		||||
        for _c in range(1, namespace_count):
 | 
			
		||||
            p += 1        # kind
 | 
			
		||||
            _, p = u30()  # name
 | 
			
		||||
        ns_set_count, p = u30()
 | 
			
		||||
        for _c in range(1, ns_set_count):
 | 
			
		||||
            count, p = u30()
 | 
			
		||||
            for _c2 in range(count):
 | 
			
		||||
                _, p = u30()
 | 
			
		||||
        multiname_count, p = u30()
 | 
			
		||||
        MULTINAME_SIZES = {
 | 
			
		||||
            0x07: 2,  # QName
 | 
			
		||||
            0x0d: 2,  # QNameA
 | 
			
		||||
            0x0f: 1,  # RTQName
 | 
			
		||||
            0x10: 1,  # RTQNameA
 | 
			
		||||
            0x11: 0,  # RTQNameL
 | 
			
		||||
            0x12: 0,  # RTQNameLA
 | 
			
		||||
            0x09: 2,  # Multiname
 | 
			
		||||
            0x0e: 2,  # MultinameA
 | 
			
		||||
            0x1b: 1,  # MultinameL
 | 
			
		||||
            0x1c: 1,  # MultinameLA
 | 
			
		||||
        }
 | 
			
		||||
        multinames = [u'']
 | 
			
		||||
        for _c in range(1, multiname_count):
 | 
			
		||||
            kind, p = u30()
 | 
			
		||||
            assert kind in MULTINAME_SIZES, u'Invalid multiname kind %r' % kind
 | 
			
		||||
            if kind == 0x07:
 | 
			
		||||
                namespace_idx, p = u30()
 | 
			
		||||
                name_idx, p = u30()
 | 
			
		||||
                multinames.append(constant_strings[name_idx])
 | 
			
		||||
            else:
 | 
			
		||||
                multinames.append('[MULTINAME kind: %d]' % kind)
 | 
			
		||||
                for _c2 in range(MULTINAME_SIZES[kind]):
 | 
			
		||||
                    _, p = u30()
 | 
			
		||||
 | 
			
		||||
        # Methods
 | 
			
		||||
        method_count, p = u30()
 | 
			
		||||
        MethodInfo = collections.namedtuple(
 | 
			
		||||
            'MethodInfo',
 | 
			
		||||
            ['NEED_ARGUMENTS', 'NEED_REST'])
 | 
			
		||||
        method_infos = []
 | 
			
		||||
        for method_id in range(method_count):
 | 
			
		||||
            param_count, p = u30()
 | 
			
		||||
            _, p = u30()  # return type
 | 
			
		||||
            for _ in range(param_count):
 | 
			
		||||
                _, p = u30()  # param type
 | 
			
		||||
            _, p = u30()  # name index (always 0 for youtube)
 | 
			
		||||
            flags, p = read_byte()
 | 
			
		||||
            if flags & 0x08 != 0:
 | 
			
		||||
                # Options present
 | 
			
		||||
                option_count, p = u30()
 | 
			
		||||
                for c in range(option_count):
 | 
			
		||||
                    _, p = u30()  # val
 | 
			
		||||
                    p += 1        # kind
 | 
			
		||||
            if flags & 0x80 != 0:
 | 
			
		||||
                # Param names present
 | 
			
		||||
                for _ in range(param_count):
 | 
			
		||||
                    _, p = u30()  # param name
 | 
			
		||||
            mi = MethodInfo(flags & 0x01 != 0, flags & 0x04 != 0)
 | 
			
		||||
            method_infos.append(mi)
 | 
			
		||||
 | 
			
		||||
        # Metadata
 | 
			
		||||
        metadata_count, p = u30()
 | 
			
		||||
        for _c in range(metadata_count):
 | 
			
		||||
            _, p = u30()  # name
 | 
			
		||||
            item_count, p = u30()
 | 
			
		||||
            for _c2 in range(item_count):
 | 
			
		||||
                _, p = u30()  # key
 | 
			
		||||
                _, p = u30()  # value
 | 
			
		||||
 | 
			
		||||
        def parse_traits_info(pos=None):
 | 
			
		||||
            if pos is None:
 | 
			
		||||
                pos = p
 | 
			
		||||
            trait_name_idx, pos = u30(pos=pos)
 | 
			
		||||
            kind_full, pos = read_byte(pos=pos)
 | 
			
		||||
            kind = kind_full & 0x0f
 | 
			
		||||
            attrs = kind_full >> 4
 | 
			
		||||
            methods = {}
 | 
			
		||||
            if kind in [0x00, 0x06]:  # Slot or Const
 | 
			
		||||
                _, pos = u30(pos=pos)  # Slot id
 | 
			
		||||
                type_name_idx, pos = u30(pos=pos)
 | 
			
		||||
                vindex, pos = u30(pos=pos)
 | 
			
		||||
                if vindex != 0:
 | 
			
		||||
                    _, pos = read_byte(pos=pos)  # vkind
 | 
			
		||||
            elif kind in [0x01, 0x02, 0x03]:  # Method / Getter / Setter
 | 
			
		||||
                _, pos = u30(pos=pos)  # disp_id
 | 
			
		||||
                method_idx, pos = u30(pos=pos)
 | 
			
		||||
                methods[multinames[trait_name_idx]] = method_idx
 | 
			
		||||
            elif kind == 0x04:  # Class
 | 
			
		||||
                _, pos = u30(pos=pos)  # slot_id
 | 
			
		||||
                _, pos = u30(pos=pos)  # classi
 | 
			
		||||
            elif kind == 0x05:  # Function
 | 
			
		||||
                _, pos = u30(pos=pos)  # slot_id
 | 
			
		||||
                function_idx, pos = u30(pos=pos)
 | 
			
		||||
                methods[function_idx] = multinames[trait_name_idx]
 | 
			
		||||
            else:
 | 
			
		||||
                raise ExtractorError(u'Unsupported trait kind %d' % kind)
 | 
			
		||||
 | 
			
		||||
            if attrs & 0x4 != 0:  # Metadata present
 | 
			
		||||
                metadata_count, pos = u30(pos=pos)
 | 
			
		||||
                for _c3 in range(metadata_count):
 | 
			
		||||
                    _, pos = u30(pos=pos)
 | 
			
		||||
 | 
			
		||||
            return (methods, pos)
 | 
			
		||||
 | 
			
		||||
        # Classes
 | 
			
		||||
        TARGET_CLASSNAME = u'SignatureDecipher'
 | 
			
		||||
        searched_idx = multinames.index(TARGET_CLASSNAME)
 | 
			
		||||
        searched_class_id = None
 | 
			
		||||
        class_count, p = u30()
 | 
			
		||||
        for class_id in range(class_count):
 | 
			
		||||
            name_idx, p = u30()
 | 
			
		||||
            if name_idx == searched_idx:
 | 
			
		||||
                # We found the class we're looking for!
 | 
			
		||||
                searched_class_id = class_id
 | 
			
		||||
            _, p = u30()  # super_name idx
 | 
			
		||||
            flags, p = read_byte()
 | 
			
		||||
            if flags & 0x08 != 0:  # Protected namespace is present
 | 
			
		||||
                protected_ns_idx, p = u30()
 | 
			
		||||
            intrf_count, p = u30()
 | 
			
		||||
            for _c2 in range(intrf_count):
 | 
			
		||||
                _, p = u30()
 | 
			
		||||
            _, p = u30()  # iinit
 | 
			
		||||
            trait_count, p = u30()
 | 
			
		||||
            for _c2 in range(trait_count):
 | 
			
		||||
                _, p = parse_traits_info()
 | 
			
		||||
 | 
			
		||||
        if searched_class_id is None:
 | 
			
		||||
            raise ExtractorError(u'Target class %r not found' %
 | 
			
		||||
                                 TARGET_CLASSNAME)
 | 
			
		||||
 | 
			
		||||
        method_names = {}
 | 
			
		||||
        method_idxs = {}
 | 
			
		||||
        for class_id in range(class_count):
 | 
			
		||||
            _, p = u30()  # cinit
 | 
			
		||||
            trait_count, p = u30()
 | 
			
		||||
            for _c2 in range(trait_count):
 | 
			
		||||
                trait_methods, p = parse_traits_info()
 | 
			
		||||
                if class_id == searched_class_id:
 | 
			
		||||
                    method_names.update(trait_methods.items())
 | 
			
		||||
                    method_idxs.update(dict(
 | 
			
		||||
                        (idx, name)
 | 
			
		||||
                        for name, idx in trait_methods.items()))
 | 
			
		||||
 | 
			
		||||
        # Scripts
 | 
			
		||||
        script_count, p = u30()
 | 
			
		||||
        for _c in range(script_count):
 | 
			
		||||
            _, p = u30()  # init
 | 
			
		||||
            trait_count, p = u30()
 | 
			
		||||
            for _c2 in range(trait_count):
 | 
			
		||||
                _, p = parse_traits_info()
 | 
			
		||||
 | 
			
		||||
        # Method bodies
 | 
			
		||||
        method_body_count, p = u30()
 | 
			
		||||
        Method = collections.namedtuple('Method', ['code', 'local_count'])
 | 
			
		||||
        methods = {}
 | 
			
		||||
        for _c in range(method_body_count):
 | 
			
		||||
            method_idx, p = u30()
 | 
			
		||||
            max_stack, p = u30()
 | 
			
		||||
            local_count, p = u30()
 | 
			
		||||
            init_scope_depth, p = u30()
 | 
			
		||||
            max_scope_depth, p = u30()
 | 
			
		||||
            code_length, p = u30()
 | 
			
		||||
            if method_idx in method_idxs:
 | 
			
		||||
                m = Method(code_tag[p:p+code_length], local_count)
 | 
			
		||||
                methods[method_idxs[method_idx]] = m
 | 
			
		||||
            p += code_length
 | 
			
		||||
            exception_count, p = u30()
 | 
			
		||||
            for _c2 in range(exception_count):
 | 
			
		||||
                _, p = u30()  # from
 | 
			
		||||
                _, p = u30()  # to
 | 
			
		||||
                _, p = u30()  # target
 | 
			
		||||
                _, p = u30()  # exc_type
 | 
			
		||||
                _, p = u30()  # var_name
 | 
			
		||||
            trait_count, p = u30()
 | 
			
		||||
            for _c2 in range(trait_count):
 | 
			
		||||
                _, p = parse_traits_info()
 | 
			
		||||
 | 
			
		||||
        assert p == len(code_tag)
 | 
			
		||||
        assert len(methods) == len(method_idxs)
 | 
			
		||||
 | 
			
		||||
        method_pyfunctions = {}
 | 
			
		||||
 | 
			
		||||
        def extract_function(func_name):
 | 
			
		||||
            if func_name in method_pyfunctions:
 | 
			
		||||
                return method_pyfunctions[func_name]
 | 
			
		||||
            if func_name not in methods:
 | 
			
		||||
                raise ExtractorError(u'Cannot find function %r' % func_name)
 | 
			
		||||
            m = methods[func_name]
 | 
			
		||||
 | 
			
		||||
            def resfunc(args):
 | 
			
		||||
                print('Entering function %s(%r)' % (func_name, args))
 | 
			
		||||
                registers = ['(this)'] + list(args) + [None] * m.local_count
 | 
			
		||||
                stack = []
 | 
			
		||||
                coder = io.BytesIO(m.code)
 | 
			
		||||
                while True:
 | 
			
		||||
                    opcode = struct.unpack('!B', coder.read(1))[0]
 | 
			
		||||
                    if opcode == 208:  # getlocal_0
 | 
			
		||||
                        stack.append(registers[0])
 | 
			
		||||
                    elif opcode == 209:  # getlocal_1
 | 
			
		||||
                        stack.append(registers[1])
 | 
			
		||||
                    elif opcode == 210:  # getlocal_2
 | 
			
		||||
                        stack.append(registers[2])
 | 
			
		||||
                    elif opcode == 36:  # pushbyte
 | 
			
		||||
                        v = struct.unpack('!B', coder.read(1))[0]
 | 
			
		||||
                        stack.append(v)
 | 
			
		||||
                    elif opcode == 44:  # pushstring
 | 
			
		||||
                        idx = u30(coder)
 | 
			
		||||
                        stack.append(constant_strings[idx])
 | 
			
		||||
                    elif opcode == 48:  # pushscope
 | 
			
		||||
                        # We don't implement the scope register, so we'll just
 | 
			
		||||
                        # ignore the popped value
 | 
			
		||||
                        stack.pop()
 | 
			
		||||
                    elif opcode == 70:  # callproperty
 | 
			
		||||
                        index = u30(coder)
 | 
			
		||||
                        mname = multinames[index]
 | 
			
		||||
                        arg_count = u30(coder)
 | 
			
		||||
                        args = list(reversed(
 | 
			
		||||
                            [stack.pop() for _ in range(arg_count)]))
 | 
			
		||||
                        obj = stack.pop()
 | 
			
		||||
                        if mname == u'split':
 | 
			
		||||
                            assert len(args) == 1
 | 
			
		||||
                            assert isinstance(args[0], compat_str)
 | 
			
		||||
                            assert isinstance(obj, compat_str)
 | 
			
		||||
                            if args[0] == u'':
 | 
			
		||||
                                res = list(obj)
 | 
			
		||||
                            else:
 | 
			
		||||
                                res = obj.split(args[0])
 | 
			
		||||
                            stack.append(res)
 | 
			
		||||
                        elif mname in method_pyfunctions:
 | 
			
		||||
                            stack.append(method_pyfunctions[mname](args))
 | 
			
		||||
                        else:
 | 
			
		||||
                            raise NotImplementedError(
 | 
			
		||||
                                u'Unsupported property %r on %r'
 | 
			
		||||
                                % (mname, obj))
 | 
			
		||||
                    elif opcode == 93:  # findpropstrict
 | 
			
		||||
                        index = u30(coder)
 | 
			
		||||
                        mname = multinames[index]
 | 
			
		||||
                        res = extract_function(mname)
 | 
			
		||||
                        stack.append(res)
 | 
			
		||||
                    elif opcode == 97:  # setproperty
 | 
			
		||||
                        index = u30(coder)
 | 
			
		||||
                        value = stack.pop()
 | 
			
		||||
                        idx = stack.pop()
 | 
			
		||||
                        obj = stack.pop()
 | 
			
		||||
                        assert isinstance(obj, list)
 | 
			
		||||
                        assert isinstance(idx, int)
 | 
			
		||||
                        obj[idx] = value
 | 
			
		||||
                    elif opcode == 98:  # getlocal
 | 
			
		||||
                        index = u30(coder)
 | 
			
		||||
                        stack.append(registers[index])
 | 
			
		||||
                    elif opcode == 99:  # setlocal
 | 
			
		||||
                        index = u30(coder)
 | 
			
		||||
                        value = stack.pop()
 | 
			
		||||
                        registers[index] = value
 | 
			
		||||
                    elif opcode == 102:  # getproperty
 | 
			
		||||
                        index = u30(coder)
 | 
			
		||||
                        pname = multinames[index]
 | 
			
		||||
                        if pname == u'length':
 | 
			
		||||
                            obj = stack.pop()
 | 
			
		||||
                            assert isinstance(obj, list)
 | 
			
		||||
                            stack.append(len(obj))
 | 
			
		||||
                        else:  # Assume attribute access
 | 
			
		||||
                            idx = stack.pop()
 | 
			
		||||
                            assert isinstance(idx, int)
 | 
			
		||||
                            obj = stack.pop()
 | 
			
		||||
                            assert isinstance(obj, list)
 | 
			
		||||
                            stack.append(obj[idx])
 | 
			
		||||
                    elif opcode == 128:  # coerce
 | 
			
		||||
                        _ = u30(coder)
 | 
			
		||||
                    elif opcode == 133:  # coerce_s
 | 
			
		||||
                        assert isinstance(stack[-1], (type(None), compat_str))
 | 
			
		||||
                    elif opcode == 164:  # modulo
 | 
			
		||||
                        value2 = stack.pop()
 | 
			
		||||
                        value1 = stack.pop()
 | 
			
		||||
                        res = value1 % value2
 | 
			
		||||
                        stack.append(res)
 | 
			
		||||
                    elif opcode == 214:  # setlocal_2
 | 
			
		||||
                        registers[2] = stack.pop()
 | 
			
		||||
                    elif opcode == 215:  # setlocal_3
 | 
			
		||||
                        registers[3] = stack.pop()
 | 
			
		||||
                    else:
 | 
			
		||||
                        raise NotImplementedError(
 | 
			
		||||
                            u'Unsupported opcode %d' % opcode)
 | 
			
		||||
 | 
			
		||||
            method_pyfunctions[func_name] = resfunc
 | 
			
		||||
            return resfunc
 | 
			
		||||
 | 
			
		||||
        initial_function = extract_function(u'decipher')
 | 
			
		||||
        return lambda s: initial_function([s])
 | 
			
		||||
 | 
			
		||||
    def _decrypt_signature(self, s, video_id, jsplayer_url, age_gate=False):
 | 
			
		||||
        """Turn the encrypted s field into a working signature"""
 | 
			
		||||
 | 
			
		||||
        if len(s) == 93:
 | 
			
		||||
            return s[86:29:-1] + s[88] + s[28:5:-1]
 | 
			
		||||
        elif len(s) == 92:
 | 
			
		||||
        if jsplayer_url is not None:
 | 
			
		||||
            try:
 | 
			
		||||
                if jsplayer_url not in self._jsplayer_cache:
 | 
			
		||||
                    self._jsplayer_cache[jsplayer_url] = self._extract_signature_function(
 | 
			
		||||
                        video_id, jsplayer_url
 | 
			
		||||
                    )
 | 
			
		||||
                return self._jsplayer_cache[jsplayer_url]([s])
 | 
			
		||||
            except Exception as e:
 | 
			
		||||
                tb = traceback.format_exc()
 | 
			
		||||
                self._downloader.report_warning(u'Automatic signature extraction failed: ' + tb)
 | 
			
		||||
 | 
			
		||||
        self._downloader.report_warning(u'Warning: Falling back to static signature algorithm')
 | 
			
		||||
 | 
			
		||||
        if age_gate:
 | 
			
		||||
            # The videos with age protection use another player, so the
 | 
			
		||||
            # algorithms can be different.
 | 
			
		||||
            if len(s) == 86:
 | 
			
		||||
                return s[2:63] + s[82] + s[64:82] + s[63]
 | 
			
		||||
 | 
			
		||||
        if len(s) == 92:
 | 
			
		||||
            return s[25] + s[3:25] + s[0] + s[26:42] + s[79] + s[43:79] + s[91] + s[80:83]
 | 
			
		||||
        elif len(s) == 91:
 | 
			
		||||
            return s[84:27:-1] + s[86] + s[26:5:-1]
 | 
			
		||||
        elif len(s) == 90:
 | 
			
		||||
            return s[25] + s[3:25] + s[2] + s[26:40] + s[77] + s[41:77] + s[89] + s[78:81]
 | 
			
		||||
        elif len(s) == 89:
 | 
			
		||||
| 
						 | 
				
			
			@ -631,7 +1190,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
 | 
			
		|||
        video_webpage = video_webpage_bytes.decode('utf-8', 'ignore')
 | 
			
		||||
 | 
			
		||||
        # Attempt to extract SWF player URL
 | 
			
		||||
        mobj = re.search(r'swfConfig.*?"(http:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage)
 | 
			
		||||
        mobj = re.search(r'swfConfig.*?"(https?:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage)
 | 
			
		||||
        if mobj is not None:
 | 
			
		||||
            player_url = re.sub(r'\\(.)', r'\1', mobj.group(1))
 | 
			
		||||
        else:
 | 
			
		||||
| 
						 | 
				
			
			@ -784,21 +1343,31 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
 | 
			
		|||
                    if 'sig' in url_data:
 | 
			
		||||
                        url += '&signature=' + url_data['sig'][0]
 | 
			
		||||
                    elif 's' in url_data:
 | 
			
		||||
                        if self._downloader.params.get('verbose'):
 | 
			
		||||
                            s = url_data['s'][0]
 | 
			
		||||
                            if age_gate:
 | 
			
		||||
                                player = 'flash player'
 | 
			
		||||
                            else:
 | 
			
		||||
                                player = u'html5 player %s' % self._search_regex(r'html5player-(.+?)\.js', video_webpage,
 | 
			
		||||
                                    'html5 player', fatal=False)
 | 
			
		||||
                            parts_sizes = u'.'.join(compat_str(len(part)) for part in s.split('.'))
 | 
			
		||||
                            self.to_screen(u'encrypted signature length %d (%s), itag %s, %s' %
 | 
			
		||||
                                (len(s), parts_sizes, url_data['itag'][0], player))
 | 
			
		||||
                        encrypted_sig = url_data['s'][0]
 | 
			
		||||
                        if self._downloader.params.get('verbose'):
 | 
			
		||||
                            if age_gate:
 | 
			
		||||
                                player_version = self._search_regex(r'-(.+)\.swf$',
 | 
			
		||||
                                    player_url if player_url else 'NOT FOUND',
 | 
			
		||||
                                    'flash player', fatal=False)
 | 
			
		||||
                                player_desc = 'flash player %s' % player_version
 | 
			
		||||
                            else:
 | 
			
		||||
                                player_version = self._search_regex(r'html5player-(.+?)\.js', video_webpage,
 | 
			
		||||
                                    'html5 player', fatal=False)
 | 
			
		||||
                                player_desc = u'html5 player %s' % player_version
 | 
			
		||||
 | 
			
		||||
                            parts_sizes = u'.'.join(compat_str(len(part)) for part in encrypted_sig.split('.'))
 | 
			
		||||
                            self.to_screen(u'encrypted signature length %d (%s), itag %s, %s' %
 | 
			
		||||
                                (len(encrypted_sig), parts_sizes, url_data['itag'][0], player_desc))
 | 
			
		||||
 | 
			
		||||
                        if age_gate:
 | 
			
		||||
                            signature = self._decrypt_signature_age_gate(encrypted_sig)
 | 
			
		||||
                            jsplayer_url = None
 | 
			
		||||
                        else:
 | 
			
		||||
                            signature = self._decrypt_signature(encrypted_sig)
 | 
			
		||||
                            jsplayer_url_json = self._search_regex(
 | 
			
		||||
                                r'"assets":.+?"js":\s*("[^"]+")',
 | 
			
		||||
                                video_webpage, u'JS player URL')
 | 
			
		||||
                            jsplayer_url = json.loads(jsplayer_url_json)
 | 
			
		||||
 | 
			
		||||
                        signature = self._decrypt_signature(encrypted_sig, video_id, jsplayer_url, age_gate)
 | 
			
		||||
                        url += '&signature=' + signature
 | 
			
		||||
                    if 'ratebypass' not in url:
 | 
			
		||||
                        url += '&ratebypass=yes'
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
| 
						 | 
				
			
			@ -66,6 +66,12 @@ try:
 | 
			
		|||
except ImportError:  # Python 2
 | 
			
		||||
    from urllib2 import HTTPError as compat_HTTPError
 | 
			
		||||
 | 
			
		||||
try:
 | 
			
		||||
    from urllib.request import urlretrieve as compat_urlretrieve
 | 
			
		||||
except ImportError:  # Python 2
 | 
			
		||||
    from urllib import urlretrieve as compat_urlretrieve
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
try:
 | 
			
		||||
    from subprocess import DEVNULL
 | 
			
		||||
    compat_subprocess_get_DEVNULL = lambda: DEVNULL
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
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