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@ -1,15 +1,23 @@
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# coding: utf-8
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# coding: utf-8
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import collections
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import errno
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import io
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import itertools
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import json
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import json
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import netrc
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import os.path
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import re
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import re
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import socket
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import socket
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import itertools
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import string
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import struct
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import traceback
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import xml.etree.ElementTree
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import xml.etree.ElementTree
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import zlib
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from .common import InfoExtractor, SearchInfoExtractor
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from .common import InfoExtractor, SearchInfoExtractor
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from .subtitles import SubtitlesInfoExtractor
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from .subtitles import SubtitlesInfoExtractor
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from ..utils import (
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from ..utils import (
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compat_chr,
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compat_http_client,
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compat_http_client,
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compat_parse_qs,
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compat_parse_qs,
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compat_urllib_error,
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compat_urllib_error,
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@ -23,6 +31,7 @@ from ..utils import (
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unescapeHTML,
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unescapeHTML,
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unified_strdate,
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unified_strdate,
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orderedSet,
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orderedSet,
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write_json_file,
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)
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)
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class YoutubeBaseInfoExtractor(InfoExtractor):
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class YoutubeBaseInfoExtractor(InfoExtractor):
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@ -393,6 +402,10 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
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if YoutubePlaylistIE.suitable(url): return False
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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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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._player_cache = {}
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def report_video_webpage_download(self, video_id):
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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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"""Report attempt to download video webpage."""
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self.to_screen(u'%s: Downloading video webpage' % video_id)
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self.to_screen(u'%s: Downloading video webpage' % video_id)
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@ -413,9 +426,657 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
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"""Indicate the download will use the RTMP protocol."""
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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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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, slen):
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id_m = re.match(r'.*-(?P<id>[a-zA-Z0-9_-]+)\.(?P<ext>[a-z]+)$',
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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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# Read from filesystem cache
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func_id = '%s_%s_%d' % (player_type, player_id, slen)
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assert os.path.basename(func_id) == func_id
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cache_dir = self._downloader.params.get('cachedir',
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u'~/.youtube-dl/cache')
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cache_enabled = cache_dir is not None
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if cache_enabled:
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cache_fn = os.path.join(os.path.expanduser(cache_dir),
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u'youtube-sigfuncs',
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func_id + '.json')
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try:
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with io.open(cache_fn, 'r', encoding='utf-8') as cachef:
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cache_spec = json.load(cachef)
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return lambda s: u''.join(s[i] for i in cache_spec)
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except IOError:
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pass # No cache available
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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, player_id),
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errnote=u'Download of %s failed' % player_url)
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res = self._parse_sig_js(code)
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elif player_type == '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, player_id),
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errnote=u'Download of %s failed' % player_url)
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code = urlh.read()
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res = 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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if cache_enabled:
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try:
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test_string = u''.join(map(compat_chr, range(slen)))
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cache_res = res(test_string)
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cache_spec = [ord(c) for c in cache_res]
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try:
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os.makedirs(os.path.dirname(cache_fn))
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except OSError as ose:
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if ose.errno != errno.EEXIST:
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raise
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write_json_file(cache_spec, cache_fn)
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except Exception:
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tb = traceback.format_exc()
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self._downloader.report_warning(
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u'Writing cache to %r failed: %s' % (cache_fn, tb))
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return res
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def _print_sig_code(self, func, slen):
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def gen_sig_code(idxs):
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def _genslice(start, end, step):
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starts = u'' if start == 0 else str(start)
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ends = (u':%d' % (end+step)) if end + step >= 0 else u':'
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steps = u'' if step == 1 else (u':%d' % step)
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return u's[%s%s%s]' % (starts, ends, steps)
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step = None
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start = '(Never used)' # Quelch pyflakes warnings - start will be
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# set as soon as step is set
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for i, prev in zip(idxs[1:], idxs[:-1]):
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if step is not None:
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if i - prev == step:
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continue
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yield _genslice(start, prev, step)
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step = None
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continue
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if i - prev in [-1, 1]:
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step = i - prev
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start = prev
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continue
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else:
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yield u's[%d]' % prev
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if step is None:
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yield u's[%d]' % i
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else:
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yield _genslice(start, i, step)
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test_string = u''.join(map(compat_chr, range(slen)))
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cache_res = func(test_string)
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cache_spec = [ord(c) for c in cache_res]
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expr_code = u' + '.join(gen_sig_code(cache_spec))
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code = u'if len(s) == %d:\n return %s\n' % (slen, expr_code)
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self.to_screen(u'Extracted signature function:\n' + code)
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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 ExtractorError(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'),
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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:
|
|
|
|
|
|
|
|
functions[fname] = extract_function(fname)
|
|
|
|
|
|
|
|
argvals = [int(v) if v.isdigit() else local_vars[v]
|
|
|
|
|
|
|
|
for v in m.group('args').split(',')]
|
|
|
|
|
|
|
|
return functions[fname](argvals)
|
|
|
|
|
|
|
|
raise ExtractorError(u'Unsupported JS expression %r' % expr)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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
|
|
|
|
|
|
|
|
code_reader = io.BytesIO(code_tag[p:])
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
# Parse ABC (AVM2 ByteCode)
|
|
|
|
|
|
|
|
def read_int(reader=None):
|
|
|
|
|
|
|
|
if reader is None:
|
|
|
|
|
|
|
|
reader = code_reader
|
|
|
|
|
|
|
|
res = 0
|
|
|
|
|
|
|
|
shift = 0
|
|
|
|
|
|
|
|
for _ in range(5):
|
|
|
|
|
|
|
|
buf = reader.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
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def u30(reader=None):
|
|
|
|
|
|
|
|
res = read_int(reader)
|
|
|
|
|
|
|
|
assert res & 0xf0000000 == 0
|
|
|
|
|
|
|
|
return res
|
|
|
|
|
|
|
|
u32 = read_int
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def s32(reader=None):
|
|
|
|
|
|
|
|
v = read_int(reader)
|
|
|
|
|
|
|
|
if v & 0x80000000 != 0:
|
|
|
|
|
|
|
|
v = - ((v ^ 0xffffffff) + 1)
|
|
|
|
|
|
|
|
return v
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def read_string(reader=None):
|
|
|
|
|
|
|
|
if reader is None:
|
|
|
|
|
|
|
|
reader = code_reader
|
|
|
|
|
|
|
|
slen = u30(reader)
|
|
|
|
|
|
|
|
resb = reader.read(slen)
|
|
|
|
|
|
|
|
assert len(resb) == slen
|
|
|
|
|
|
|
|
return resb.decode('utf-8')
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def read_bytes(count, reader=None):
|
|
|
|
|
|
|
|
if reader is None:
|
|
|
|
|
|
|
|
reader = code_reader
|
|
|
|
|
|
|
|
resb = reader.read(count)
|
|
|
|
|
|
|
|
assert len(resb) == count
|
|
|
|
|
|
|
|
return resb
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def read_byte(reader=None):
|
|
|
|
|
|
|
|
resb = read_bytes(1, reader=reader)
|
|
|
|
|
|
|
|
res = struct.unpack('<B', resb)[0]
|
|
|
|
|
|
|
|
return res
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
# minor_version + major_version
|
|
|
|
|
|
|
|
read_bytes(2 + 2)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
# Constant pool
|
|
|
|
|
|
|
|
int_count = u30()
|
|
|
|
|
|
|
|
for _c in range(1, int_count):
|
|
|
|
|
|
|
|
s32()
|
|
|
|
|
|
|
|
uint_count = u30()
|
|
|
|
|
|
|
|
for _c in range(1, uint_count):
|
|
|
|
|
|
|
|
u32()
|
|
|
|
|
|
|
|
double_count = u30()
|
|
|
|
|
|
|
|
read_bytes((double_count-1) * 8)
|
|
|
|
|
|
|
|
string_count = u30()
|
|
|
|
|
|
|
|
constant_strings = [u'']
|
|
|
|
|
|
|
|
for _c in range(1, string_count):
|
|
|
|
|
|
|
|
s = read_string()
|
|
|
|
|
|
|
|
constant_strings.append(s)
|
|
|
|
|
|
|
|
namespace_count = u30()
|
|
|
|
|
|
|
|
for _c in range(1, namespace_count):
|
|
|
|
|
|
|
|
read_bytes(1) # kind
|
|
|
|
|
|
|
|
u30() # name
|
|
|
|
|
|
|
|
ns_set_count = u30()
|
|
|
|
|
|
|
|
for _c in range(1, ns_set_count):
|
|
|
|
|
|
|
|
count = u30()
|
|
|
|
|
|
|
|
for _c2 in range(count):
|
|
|
|
|
|
|
|
u30()
|
|
|
|
|
|
|
|
multiname_count = 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 = u30()
|
|
|
|
|
|
|
|
assert kind in MULTINAME_SIZES, u'Invalid multiname kind %r' % kind
|
|
|
|
|
|
|
|
if kind == 0x07:
|
|
|
|
|
|
|
|
u30() # namespace_idx
|
|
|
|
|
|
|
|
name_idx = u30()
|
|
|
|
|
|
|
|
multinames.append(constant_strings[name_idx])
|
|
|
|
|
|
|
|
else:
|
|
|
|
|
|
|
|
multinames.append('[MULTINAME kind: %d]' % kind)
|
|
|
|
|
|
|
|
for _c2 in range(MULTINAME_SIZES[kind]):
|
|
|
|
|
|
|
|
u30()
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
# Methods
|
|
|
|
|
|
|
|
method_count = u30()
|
|
|
|
|
|
|
|
MethodInfo = collections.namedtuple(
|
|
|
|
|
|
|
|
'MethodInfo',
|
|
|
|
|
|
|
|
['NEED_ARGUMENTS', 'NEED_REST'])
|
|
|
|
|
|
|
|
method_infos = []
|
|
|
|
|
|
|
|
for method_id in range(method_count):
|
|
|
|
|
|
|
|
param_count = u30()
|
|
|
|
|
|
|
|
u30() # return type
|
|
|
|
|
|
|
|
for _ in range(param_count):
|
|
|
|
|
|
|
|
u30() # param type
|
|
|
|
|
|
|
|
u30() # name index (always 0 for youtube)
|
|
|
|
|
|
|
|
flags = read_byte()
|
|
|
|
|
|
|
|
if flags & 0x08 != 0:
|
|
|
|
|
|
|
|
# Options present
|
|
|
|
|
|
|
|
option_count = u30()
|
|
|
|
|
|
|
|
for c in range(option_count):
|
|
|
|
|
|
|
|
u30() # val
|
|
|
|
|
|
|
|
read_bytes(1) # kind
|
|
|
|
|
|
|
|
if flags & 0x80 != 0:
|
|
|
|
|
|
|
|
# Param names present
|
|
|
|
|
|
|
|
for _ in range(param_count):
|
|
|
|
|
|
|
|
u30() # param name
|
|
|
|
|
|
|
|
mi = MethodInfo(flags & 0x01 != 0, flags & 0x04 != 0)
|
|
|
|
|
|
|
|
method_infos.append(mi)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
# Metadata
|
|
|
|
|
|
|
|
metadata_count = u30()
|
|
|
|
|
|
|
|
for _c in range(metadata_count):
|
|
|
|
|
|
|
|
u30() # name
|
|
|
|
|
|
|
|
item_count = u30()
|
|
|
|
|
|
|
|
for _c2 in range(item_count):
|
|
|
|
|
|
|
|
u30() # key
|
|
|
|
|
|
|
|
u30() # value
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def parse_traits_info():
|
|
|
|
|
|
|
|
trait_name_idx = u30()
|
|
|
|
|
|
|
|
kind_full = read_byte()
|
|
|
|
|
|
|
|
kind = kind_full & 0x0f
|
|
|
|
|
|
|
|
attrs = kind_full >> 4
|
|
|
|
|
|
|
|
methods = {}
|
|
|
|
|
|
|
|
if kind in [0x00, 0x06]: # Slot or Const
|
|
|
|
|
|
|
|
u30() # Slot id
|
|
|
|
|
|
|
|
u30() # type_name_idx
|
|
|
|
|
|
|
|
vindex = u30()
|
|
|
|
|
|
|
|
if vindex != 0:
|
|
|
|
|
|
|
|
read_byte() # vkind
|
|
|
|
|
|
|
|
elif kind in [0x01, 0x02, 0x03]: # Method / Getter / Setter
|
|
|
|
|
|
|
|
u30() # disp_id
|
|
|
|
|
|
|
|
method_idx = u30()
|
|
|
|
|
|
|
|
methods[multinames[trait_name_idx]] = method_idx
|
|
|
|
|
|
|
|
elif kind == 0x04: # Class
|
|
|
|
|
|
|
|
u30() # slot_id
|
|
|
|
|
|
|
|
u30() # classi
|
|
|
|
|
|
|
|
elif kind == 0x05: # Function
|
|
|
|
|
|
|
|
u30() # slot_id
|
|
|
|
|
|
|
|
function_idx = u30()
|
|
|
|
|
|
|
|
methods[function_idx] = multinames[trait_name_idx]
|
|
|
|
|
|
|
|
else:
|
|
|
|
|
|
|
|
raise ExtractorError(u'Unsupported trait kind %d' % kind)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
if attrs & 0x4 != 0: # Metadata present
|
|
|
|
|
|
|
|
metadata_count = u30()
|
|
|
|
|
|
|
|
for _c3 in range(metadata_count):
|
|
|
|
|
|
|
|
u30() # metadata index
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
return methods
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
# Classes
|
|
|
|
|
|
|
|
TARGET_CLASSNAME = u'SignatureDecipher'
|
|
|
|
|
|
|
|
searched_idx = multinames.index(TARGET_CLASSNAME)
|
|
|
|
|
|
|
|
searched_class_id = None
|
|
|
|
|
|
|
|
class_count = u30()
|
|
|
|
|
|
|
|
for class_id in range(class_count):
|
|
|
|
|
|
|
|
name_idx = u30()
|
|
|
|
|
|
|
|
if name_idx == searched_idx:
|
|
|
|
|
|
|
|
# We found the class we're looking for!
|
|
|
|
|
|
|
|
searched_class_id = class_id
|
|
|
|
|
|
|
|
u30() # super_name idx
|
|
|
|
|
|
|
|
flags = read_byte()
|
|
|
|
|
|
|
|
if flags & 0x08 != 0: # Protected namespace is present
|
|
|
|
|
|
|
|
u30() # protected_ns_idx
|
|
|
|
|
|
|
|
intrf_count = u30()
|
|
|
|
|
|
|
|
for _c2 in range(intrf_count):
|
|
|
|
|
|
|
|
u30()
|
|
|
|
|
|
|
|
u30() # iinit
|
|
|
|
|
|
|
|
trait_count = u30()
|
|
|
|
|
|
|
|
for _c2 in range(trait_count):
|
|
|
|
|
|
|
|
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):
|
|
|
|
|
|
|
|
u30() # cinit
|
|
|
|
|
|
|
|
trait_count = u30()
|
|
|
|
|
|
|
|
for _c2 in range(trait_count):
|
|
|
|
|
|
|
|
trait_methods = 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 = u30()
|
|
|
|
|
|
|
|
for _c in range(script_count):
|
|
|
|
|
|
|
|
u30() # init
|
|
|
|
|
|
|
|
trait_count = u30()
|
|
|
|
|
|
|
|
for _c2 in range(trait_count):
|
|
|
|
|
|
|
|
parse_traits_info()
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
# Method bodies
|
|
|
|
|
|
|
|
method_body_count = u30()
|
|
|
|
|
|
|
|
Method = collections.namedtuple('Method', ['code', 'local_count'])
|
|
|
|
|
|
|
|
methods = {}
|
|
|
|
|
|
|
|
for _c in range(method_body_count):
|
|
|
|
|
|
|
|
method_idx = u30()
|
|
|
|
|
|
|
|
u30() # max_stack
|
|
|
|
|
|
|
|
local_count = u30()
|
|
|
|
|
|
|
|
u30() # init_scope_depth
|
|
|
|
|
|
|
|
u30() # max_scope_depth
|
|
|
|
|
|
|
|
code_length = u30()
|
|
|
|
|
|
|
|
code = read_bytes(code_length)
|
|
|
|
|
|
|
|
if method_idx in method_idxs:
|
|
|
|
|
|
|
|
m = Method(code, local_count)
|
|
|
|
|
|
|
|
methods[method_idxs[method_idx]] = m
|
|
|
|
|
|
|
|
exception_count = u30()
|
|
|
|
|
|
|
|
for _c2 in range(exception_count):
|
|
|
|
|
|
|
|
u30() # from
|
|
|
|
|
|
|
|
u30() # to
|
|
|
|
|
|
|
|
u30() # target
|
|
|
|
|
|
|
|
u30() # exc_type
|
|
|
|
|
|
|
|
u30() # var_name
|
|
|
|
|
|
|
|
trait_count = u30()
|
|
|
|
|
|
|
|
for _c2 in range(trait_count):
|
|
|
|
|
|
|
|
parse_traits_info()
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
assert p + code_reader.tell() == 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):
|
|
|
|
|
|
|
|
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 == 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 == u'slice':
|
|
|
|
|
|
|
|
assert len(args) == 1
|
|
|
|
|
|
|
|
assert isinstance(args[0], int)
|
|
|
|
|
|
|
|
assert isinstance(obj, list)
|
|
|
|
|
|
|
|
res = obj[args[0]:]
|
|
|
|
|
|
|
|
stack.append(res)
|
|
|
|
|
|
|
|
elif mname == u'join':
|
|
|
|
|
|
|
|
assert len(args) == 1
|
|
|
|
|
|
|
|
assert isinstance(args[0], compat_str)
|
|
|
|
|
|
|
|
assert isinstance(obj, list)
|
|
|
|
|
|
|
|
res = args[0].join(obj)
|
|
|
|
|
|
|
|
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 == 72: # returnvalue
|
|
|
|
|
|
|
|
res = stack.pop()
|
|
|
|
|
|
|
|
return res
|
|
|
|
|
|
|
|
elif opcode == 79: # callpropvoid
|
|
|
|
|
|
|
|
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'reverse':
|
|
|
|
|
|
|
|
assert isinstance(obj, list)
|
|
|
|
|
|
|
|
obj.reverse()
|
|
|
|
|
|
|
|
else:
|
|
|
|
|
|
|
|
raise NotImplementedError(
|
|
|
|
|
|
|
|
u'Unsupported (void) 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 == 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 == 211: # getlocal_3
|
|
|
|
|
|
|
|
stack.append(registers[3])
|
|
|
|
|
|
|
|
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, player_url, age_gate=False):
|
|
|
|
"""Turn the encrypted s field into a working signature"""
|
|
|
|
"""Turn the encrypted s field into a working signature"""
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
if player_url is not None:
|
|
|
|
|
|
|
|
try:
|
|
|
|
|
|
|
|
if player_url not in self._player_cache:
|
|
|
|
|
|
|
|
func = self._extract_signature_function(
|
|
|
|
|
|
|
|
video_id, player_url, len(s)
|
|
|
|
|
|
|
|
)
|
|
|
|
|
|
|
|
self._player_cache[player_url] = func
|
|
|
|
|
|
|
|
func = self._player_cache[player_url]
|
|
|
|
|
|
|
|
if self._downloader.params.get('youtube_print_sig_code'):
|
|
|
|
|
|
|
|
self._print_sig_code(func, len(s))
|
|
|
|
|
|
|
|
return func(s)
|
|
|
|
|
|
|
|
except Exception:
|
|
|
|
|
|
|
|
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')
|
|
|
|
|
|
|
|
return self._static_decrypt_signature(
|
|
|
|
|
|
|
|
s, video_id, player_url, age_gate)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def _static_decrypt_signature(self, s, video_id, player_url, age_gate):
|
|
|
|
|
|
|
|
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) == 93:
|
|
|
|
if len(s) == 93:
|
|
|
|
return s[86:29:-1] + s[88] + s[28:5:-1]
|
|
|
|
return s[86:29:-1] + s[88] + s[28:5:-1]
|
|
|
|
elif len(s) == 92:
|
|
|
|
elif len(s) == 92:
|
|
|
@ -431,7 +1092,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
|
|
|
|
elif len(s) == 87:
|
|
|
|
elif len(s) == 87:
|
|
|
|
return s[6:27] + s[4] + s[28:39] + s[27] + s[40:59] + s[2] + s[60:]
|
|
|
|
return s[6:27] + s[4] + s[28:39] + s[27] + s[40:59] + s[2] + s[60:]
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elif len(s) == 86:
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elif len(s) == 86:
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return s[80:72:-1] + s[16] + s[71:39:-1] + s[72] + s[38:16:-1] + s[82] + s[:16][::-1]
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return s[80:72:-1] + s[16] + s[71:39:-1] + s[72] + s[38:16:-1] + s[82] + s[15::-1]
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elif len(s) == 85:
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elif len(s) == 85:
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return s[3:11] + s[0] + s[12:55] + s[84] + s[56:84]
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return s[3:11] + s[0] + s[12:55] + s[84] + s[56:84]
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elif len(s) == 84:
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elif len(s) == 84:
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@ -450,15 +1111,6 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
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else:
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else:
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raise ExtractorError(u'Unable to decrypt signature, key length %d not supported; retrying might work' % (len(s)))
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raise ExtractorError(u'Unable to decrypt signature, key length %d not supported; retrying might work' % (len(s)))
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def _decrypt_signature_age_gate(self, s):
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# The videos with age protection use another player, so the algorithms
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# can be different.
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if len(s) == 86:
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return s[2:63] + s[82] + s[64:82] + s[63]
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else:
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# Fallback to the other algortihms
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return self._decrypt_signature(s)
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def _get_available_subtitles(self, video_id):
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def _get_available_subtitles(self, video_id):
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try:
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try:
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sub_list = self._download_webpage(
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sub_list = self._download_webpage(
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@ -631,7 +1283,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
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video_webpage = video_webpage_bytes.decode('utf-8', 'ignore')
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video_webpage = video_webpage_bytes.decode('utf-8', 'ignore')
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# Attempt to extract SWF player URL
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|
# Attempt to extract SWF player URL
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|
mobj = re.search(r'swfConfig.*?"(http:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage)
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mobj = re.search(r'swfConfig.*?"(https?:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage)
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|
if mobj is not None:
|
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if mobj is not None:
|
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player_url = re.sub(r'\\(.)', r'\1', mobj.group(1))
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|
player_url = re.sub(r'\\(.)', r'\1', mobj.group(1))
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else:
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else:
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@ -784,21 +1436,34 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
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|
if 'sig' in url_data:
|
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|
|
if 'sig' in url_data:
|
|
|
|
url += '&signature=' + url_data['sig'][0]
|
|
|
|
url += '&signature=' + url_data['sig'][0]
|
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|
|
elif 's' in url_data:
|
|
|
|
elif 's' in url_data:
|
|
|
|
|
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|
|
encrypted_sig = url_data['s'][0]
|
|
|
|
if self._downloader.params.get('verbose'):
|
|
|
|
if self._downloader.params.get('verbose'):
|
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|
|
s = url_data['s'][0]
|
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|
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|
|
if age_gate:
|
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|
|
if age_gate:
|
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|
|
player = 'flash player'
|
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|
|
if player_url is None:
|
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|
|
player_version = 'unknown'
|
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|
else:
|
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|
|
player_version = self._search_regex(
|
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|
|
|
|
|
|
r'-(.+)\.swf$', player_url,
|
|
|
|
|
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|
|
u'flash player', fatal=False)
|
|
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|
|
|
|
|
player_desc = 'flash player %s' % player_version
|
|
|
|
else:
|
|
|
|
else:
|
|
|
|
player = u'html5 player %s' % self._search_regex(r'html5player-(.+?)\.js', video_webpage,
|
|
|
|
player_version = self._search_regex(
|
|
|
|
|
|
|
|
r'html5player-(.+?)\.js', video_webpage,
|
|
|
|
'html5 player', fatal=False)
|
|
|
|
'html5 player', fatal=False)
|
|
|
|
parts_sizes = u'.'.join(compat_str(len(part)) for part in s.split('.'))
|
|
|
|
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' %
|
|
|
|
self.to_screen(u'encrypted signature length %d (%s), itag %s, %s' %
|
|
|
|
(len(s), parts_sizes, url_data['itag'][0], player))
|
|
|
|
(len(encrypted_sig), parts_sizes, url_data['itag'][0], player_desc))
|
|
|
|
encrypted_sig = url_data['s'][0]
|
|
|
|
|
|
|
|
if age_gate:
|
|
|
|
if not age_gate:
|
|
|
|
signature = self._decrypt_signature_age_gate(encrypted_sig)
|
|
|
|
jsplayer_url_json = self._search_regex(
|
|
|
|
else:
|
|
|
|
r'"assets":.+?"js":\s*("[^"]+")',
|
|
|
|
signature = self._decrypt_signature(encrypted_sig)
|
|
|
|
video_webpage, u'JS player URL')
|
|
|
|
|
|
|
|
player_url = json.loads(jsplayer_url_json)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
signature = self._decrypt_signature(
|
|
|
|
|
|
|
|
encrypted_sig, video_id, player_url, age_gate)
|
|
|
|
url += '&signature=' + signature
|
|
|
|
url += '&signature=' + signature
|
|
|
|
if 'ratebypass' not in url:
|
|
|
|
if 'ratebypass' not in url:
|
|
|
|
url += '&ratebypass=yes'
|
|
|
|
url += '&ratebypass=yes'
|
|
|
|