[openload] Fix extraction.

aadecode code was restored from commit c1decda58c
with some optimizations (2x faster).

Fixes #10408
This commit is contained in:
Kacper Michajłow 2016-11-05 05:00:09 +01:00
parent 189935f159
commit 95ad9ce573

View File

@ -1,6 +1,8 @@
# coding: utf-8
from __future__ import unicode_literals, division
import re
from .common import InfoExtractor
from ..compat import (
compat_chr,
@ -10,6 +12,10 @@
determine_ext,
ExtractorError,
)
from ..jsinterp import (
JSInterpreter,
_NAME_RE
)
class OpenloadIE(InfoExtractor):
@ -56,6 +62,44 @@ class OpenloadIE(InfoExtractor):
'only_matching': True,
}]
def openload_decode(self, txt):
symbol_dict = {
'(゚Д゚) [゚Θ゚]': '_',
'(゚Д゚) [゚ω゚ノ]': 'a',
'(゚Д゚) [゚Θ゚ノ]': 'b',
'(゚Д゚) [\'c\']': 'c',
'(゚Д゚) [゚ー゚ノ]': 'd',
'(゚Д゚) [゚Д゚ノ]': 'e',
'(゚Д゚) [1]': 'f',
'(゚Д゚) [\'o\']': 'o',
'(o゚ー゚o)': 'u',
'(゚Д゚) [\'c\']': 'c',
'((゚ー゚) + (o^_^o))': '7',
'((o^_^o) +(o^_^o) +(c^_^o))': '6',
'((゚ー゚) + (゚Θ゚))': '5',
'(-~3)': '4',
'(-~-~1)': '3',
'(-~1)': '2',
'(-~0)': '1',
'((c^_^o)-(c^_^o))': '0',
}
delim = '(゚Д゚)[゚ε゚]+'
end_token = '(゚Д゚)[゚o゚]'
symbols = '|'.join(map(re.escape, symbol_dict.keys()))
txt = re.sub('(%s)\+\s?' % symbols, lambda m: symbol_dict[m.group(1)], txt)
ret = ''
for aacode in re.findall(r'{0}\+\s?{1}(.*?){0}'.format(re.escape(end_token), re.escape(delim)), txt):
for aachar in aacode.split(delim):
if aachar.isdigit():
ret += compat_chr(int(aachar, 8))
else:
m = re.match(r'^u([\da-f]{4})$', aachar)
if m:
ret += compat_chr(int(m.group(1), 16))
else:
self.report_warning("Cannot decode: %s" % aachar)
return ret
def _real_extract(self, url):
video_id = self._match_id(url)
webpage = self._download_webpage('https://openload.co/embed/%s/' % video_id, video_id)
@ -70,19 +114,26 @@ def _real_extract(self, url):
r'<span[^>]*>([^<]+)</span>\s*<span[^>]*>[^<]+</span>\s*<span[^>]+id="streamurl"',
webpage, 'encrypted data')
magic = compat_ord(enc_data[-1])
enc_code = self._html_search_regex(r'<script[^>]+>(゚ω゚[^<]+)</script>',
webpage, 'encrypted code')
js_code = self.openload_decode(enc_code)
jsi = JSInterpreter(js_code)
m_offset_fun = self._search_regex(r'slice\(0\s*-\s*(%s)\(\)' % _NAME_RE, js_code, 'javascript offset function')
m_diff_fun = self._search_regex(r'charCodeAt\(0\)\s*\+\s*(%s)\(\)' % _NAME_RE, js_code, 'javascript diff function')
offset = jsi.call_function(m_offset_fun)
diff = jsi.call_function(m_diff_fun)
video_url_chars = []
for idx, c in enumerate(enc_data):
j = compat_ord(c)
if j == magic:
j -= 1
elif j == magic - 1:
j += 1
if j >= 33 and j <= 126:
j = ((j + 14) % 94) + 33
if idx == len(enc_data) - 1:
j += 3
if idx == len(enc_data) - offset:
j += diff
video_url_chars += compat_chr(j)
video_url = 'https://openload.co/stream/%s?mime=true' % ''.join(video_url_chars)