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[cloudflare] fix bypass procedure

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Cloudflare challenges, at least for kissmanga and readcomiconline,
now use slightly different Javascript expressions.

Instead of a single value per expression, they now have a numerator
and a denominator of a fractional value, which in the end gets
truncated to 10 decimal places.
This commit is contained in:
Mike Fährmann 2018-04-05 18:24:58 +02:00
parent 759ba26fb0
commit f6c95dccf9
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1 changed files with 8 additions and 1 deletions
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gallery_dl/cloudflare.py
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@ -61,11 +61,18 @@ def solve_jschl(url, page):
value = evaluate_expression(expr[vlength+2:])
solution = func(solution, value)
elif expr.startswith("a.value"):
return solution + len(urllib.parse.urlsplit(url).netloc)
solution += len(urllib.parse.urlsplit(url).netloc)
if ".toFixed(" in expr:
solution = "{:.10f}".format(solution)
return solution
def evaluate_expression(expr):
"""Evaluate a Javascript expression for the challenge"""
if "/" in expr:
num, _, denom = expr.partition("/")
return evaluate_expression(num) / evaluate_expression(denom)
stack = []
ranges = []
value = ""