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https://github.com/ytdl-org/youtube-dl
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[streamango] Fix formats extraction, improve and simplify (closes #14256)
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@ -4,6 +4,7 @@ from __future__ import unicode_literals
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import re
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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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determine_ext,
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int_or_none,
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@ -38,26 +39,26 @@ class StreamangoIE(InfoExtractor):
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}]
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def _real_extract(self, url):
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def decrypt_src(str_, val):
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k = '=/+9876543210zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA'
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str_ = re.sub(r'[^A-Za-z0-9+/=]', '', str_)
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src = ''
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def decrypt_src(encoded, val):
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ALPHABET = '=/+9876543210zyxwvutsrqponmlkjihgfedcbaZYXWVUTSRQPONMLKJIHGFEDCBA'
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encoded = re.sub(r'[^A-Za-z0-9+/=]', '', encoded)
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decoded = ''
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sm = [None] * 4
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i = 0
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str_len = len(str_)
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str_len = len(encoded)
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while i < str_len:
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for j in range(4):
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sm[j % 4] = k.index(str_[i])
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sm[j % 4] = ALPHABET.index(encoded[i])
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i += 1
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charCode = ((sm[0] << 0x2) | (sm[1] >> 0x4)) ^ val
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src += chr(charCode)
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if (sm[2] != 0x40):
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charCode = ((sm[1] & 0xf) << 0x4) | (sm[2] >> 0x2)
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src += chr(charCode)
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if (sm[3] != 0x40):
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charCode = ((sm[2] & 0x3) << 0x6) | sm[3]
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src += chr(charCode)
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return src
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char_code = ((sm[0] << 0x2) | (sm[1] >> 0x4)) ^ val
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decoded += compat_chr(char_code)
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if sm[2] != 0x40:
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char_code = ((sm[1] & 0xf) << 0x4) | (sm[2] >> 0x2)
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decoded += compat_chr(char_code)
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if sm[3] != 0x40:
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char_code = ((sm[2] & 0x3) << 0x6) | sm[3]
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decoded += compat_chr(char_code)
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return decoded
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video_id = self._match_id(url)
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@ -66,22 +67,27 @@ class StreamangoIE(InfoExtractor):
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title = self._og_search_title(webpage, default=video_id)
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formats = []
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for format_ in re.findall(r'\(\s*({[^}]*\bsrc\s*:\s*[^}]*})', webpage):
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mobj = re.search(r'(src\s*:\s*[^(]\(([^)]*)\)[\s,]*)', format_)
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for format_ in re.findall(r'({[^}]*\bsrc\s*:\s*[^}]*})', webpage):
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mobj = re.search(r'(src\s*:\s*[^(]+\(([^)]*)\)[\s,]*)', format_)
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if mobj is None:
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continue
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format_ = format_.replace(mobj.group(0), '')
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video = self._parse_json(
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format_, video_id, transform_source=js_to_json, fatal=False)
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if not video:
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continue
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format_, video_id, transform_source=js_to_json,
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fatal=False) or {}
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mobj = re.search(r'[\'"](?P<src>[^\'"]+)[\'"]\s*,\s*(?P<val>\d+)', mobj.group(1))
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mobj = re.search(
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r'([\'"])(?P<src>(?:(?!\1).)+)\1\s*,\s*(?P<val>\d+)',
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mobj.group(1))
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if mobj is None:
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continue
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src = decrypt_src(mobj.group('src'), int_or_none(mobj.group('val')))
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if not src:
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continue
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ext = determine_ext(src, default_ext=None)
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if video.get('type') == 'application/dash+xml' or ext == 'mpd':
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formats.extend(self._extract_mpd_formats(
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