mirror of https://github.com/yt-dlp/yt-dlp.git
[openload] Fix extraction (closes #9706)
This commit is contained in:
Yen Chi Hsuan
parent
d3f8e038fe
commit
c1decda58c
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@ -1,15 +1,14 @@
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# coding: utf-8
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from __future__ import unicode_literals
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from __future__ import unicode_literals, division
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import re
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import math
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from .common import InfoExtractor
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from ..compat import compat_chr
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from ..utils import (
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decode_png,
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determine_ext,
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encode_base_n,
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ExtractorError,
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mimetype2ext,
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)
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@ -41,60 +40,6 @@ class OpenloadIE(InfoExtractor):
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'only_matching': True,
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}]
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@staticmethod
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def openload_level2_debase(m):
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radix, num = int(m.group(1)) + 27, int(m.group(2))
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return '"' + encode_base_n(num, radix) + '"'
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@classmethod
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def openload_level2(cls, txt):
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# The function name is ǃ \u01c3
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# Using escaped unicode literals does not work in Python 3.2
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return re.sub(r'ǃ\((\d+),(\d+)\)', cls.openload_level2_debase, txt, re.UNICODE).replace('"+"', '')
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# Openload uses a variant of aadecode
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# openload_decode and related functions are originally written by
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# vitas@matfyz.cz and released with public domain
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# See https://github.com/rg3/youtube-dl/issues/8489
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@classmethod
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def openload_decode(cls, txt):
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symbol_table = [
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('_', '(ﾟДﾟ) [ﾟΘﾟ]'),
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('a', '(ﾟДﾟ) [ﾟωﾟﾉ]'),
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('b', '(ﾟДﾟ) [ﾟΘﾟﾉ]'),
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('c', '(ﾟДﾟ) [\'c\']'),
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('d', '(ﾟДﾟ) [ﾟｰﾟﾉ]'),
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('e', '(ﾟДﾟ) [ﾟДﾟﾉ]'),
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('f', '(ﾟДﾟ) [1]'),
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('o', '(ﾟДﾟ) [\'o\']'),
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('u', '(oﾟｰﾟo)'),
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('c', '(ﾟДﾟ) [\'c\']'),
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('7', '((ﾟｰﾟ) + (o^_^o))'),
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('6', '((o^_^o) +(o^_^o) +(c^_^o))'),
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('5', '((ﾟｰﾟ) + (ﾟΘﾟ))'),
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('4', '(-~3)'),
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('3', '(-~-~1)'),
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('2', '(-~1)'),
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('1', '(-~0)'),
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('0', '((c^_^o)-(c^_^o))'),
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]
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delim = '(ﾟДﾟ)[ﾟεﾟ]+'
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ret = ''
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for aachar in txt.split(delim):
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for val, pat in symbol_table:
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aachar = aachar.replace(pat, val)
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aachar = aachar.replace('+ ', '')
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m = re.match(r'^\d+', aachar)
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if m:
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ret += compat_chr(int(m.group(0), 8))
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else:
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m = re.match(r'^u([\da-f]+)', aachar)
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if m:
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ret += compat_chr(int(m.group(1), 16))
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return cls.openload_level2(ret)
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def _real_extract(self, url):
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video_id = self._match_id(url)
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webpage = self._download_webpage(url, video_id)
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@ -102,29 +47,77 @@ class OpenloadIE(InfoExtractor):
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if 'File not found' in webpage:
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raise ExtractorError('File not found', expected=True)
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code = self._search_regex(
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r'</video>\s*</div>\s*<script[^>]+>[^>]+</script>\s*<script[^>]+>([^<]+)</script>',
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webpage, 'JS code')
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# The following extraction logic is proposed by @Belderak and @gdkchan
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# and declared to be used freely in youtube-dl
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# See https://github.com/rg3/youtube-dl/issues/9706
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decoded = self.openload_decode(code)
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numbers_js = self._download_webpage(
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'https://openload.co/assets/js/obfuscator/n.js', video_id,
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note='Downloading signature numbers')
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signums = self._search_regex(
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r'window\.signatureNumbers\s*=\s*[\'"](?P<data>[a-z]+)[\'"]',
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numbers_js, 'signature numbers', group='data')
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video_url = self._search_regex(
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r'return\s+"(https?://[^"]+)"', decoded, 'video URL')
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linkimg_uri = self._search_regex(
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r'<img[^>]+id="linkimg"[^>]+src="([^"]+)"', webpage, 'link image')
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linkimg = self._request_webpage(
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linkimg_uri, video_id, note=False).read()
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width, height, pixels = decode_png(linkimg)
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output = ''
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for y in range(height):
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for x in range(width):
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r, g, b = pixels[y][3 * x:3 * x + 3]
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if r == 0 and g == 0 and b == 0:
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break
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else:
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output += compat_chr(r)
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output += compat_chr(g)
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output += compat_chr(b)
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img_str_length = len(output) // 200
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img_str = [[0 for x in range(img_str_length)] for y in range(10)]
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sig_str_length = len(signums) // 260
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sig_str = [[0 for x in range(sig_str_length)] for y in range(10)]
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for i in range(10):
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for j in range(img_str_length):
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begin = i * img_str_length * 20 + j * 20
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img_str[i][j] = output[begin:begin + 20]
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for j in range(sig_str_length):
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begin = i * sig_str_length * 26 + j * 26
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sig_str[i][j] = signums[begin:begin + 26]
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parts = []
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# TODO: find better names for str_, chr_ and sum_
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str_ = ''
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for i in [2, 3, 5, 7]:
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str_ = ''
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sum_ = float(99)
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for j in range(len(sig_str[i])):
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for chr_idx in range(len(img_str[i][j])):
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if sum_ > float(122):
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sum_ = float(98)
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chr_ = compat_chr(int(math.floor(sum_)))
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if sig_str[i][j][chr_idx] == chr_ and j >= len(str_):
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sum_ += float(2.5)
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str_ += img_str[i][j][chr_idx]
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parts.append(str_.replace(',', ''))
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video_url = 'https://openload.co/stream/%s~%s~%s~%s' % (parts[3], parts[1], parts[2], parts[0])
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title = self._og_search_title(webpage, default=None) or self._search_regex(
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r'<span[^>]+class=["\']title["\'][^>]*>([^<]+)', webpage,
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'title', default=None) or self._html_search_meta(
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'description', webpage, 'title', fatal=True)
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ext = mimetype2ext(self._search_regex(
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r'window\.vt\s*=\s*(["\'])(?P<mimetype>.+?)\1', decoded,
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'mimetype', default=None, group='mimetype')) or determine_ext(
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video_url, 'mp4')
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return {
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'id': video_id,
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'title': title,
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'ext': ext,
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'thumbnail': self._og_search_thumbnail(webpage, default=None),
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'url': video_url,
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# Seems all videos have extensions in their titles
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'ext': determine_ext(title),
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}
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