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[utils] Move codes for handling eval() from iqiyi.py

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This commit is contained in:
Yen Chi Hsuan 2016-02-26 14:58:29 +08:00
parent 59f898b7a7
commit f52354a889
2 changed files with 22 additions and 22 deletions
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20
youtube_dl/utils.py
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@ -2635,3 +2635,23 @@ def base_n(num, n, table=None):
ret = table[num % n] + ret
num = num // n
return ret
def decode_packed_codes(code):
mobj = re.search(
r"'([^']+)',(\d+),(\d+),'([^']+)'\.split\('\|'\),[^,]+,{}",
code)
obfucasted_code, base, count, symbols = mobj.groups()
base = int(base)
count = int(count)
symbols = symbols.split('|')
symbol_table = {}
while count:
count -= 1
base_n_count = base_n(count, base)
symbol_table[base_n_count] = symbols[count] or base_n_count
return re.sub(
r'\b(\w+)\b', lambda mobj: symbol_table[mobj.group(0)],
obfucasted_code)