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Fixed cf new challenge solution #373

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Fixed cf new challenge solution #373

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7ee8825
Fixed kissanime-cf new challenge
Sraq-Zit Jun 20, 2020
3b924a7
Version change
Sraq-Zit Jun 24, 2020
9546707
Changed regexp for js to match that of cloudflare
Sraq-Zit Jul 5, 2020
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25 changes: 14 additions & 11 deletions cfscrape/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,7 @@

from .user_agents import USER_AGENTS

__version__ = "2.1.1"
__version__ = "2.1.1-alpha"

DEFAULT_USER_AGENT = random.choice(USER_AGENTS)

Expand Down Expand Up @@ -173,7 +173,7 @@ def solve_cf_challenge(self, resp, **original_kwargs):
for param in re.search(r'action=\"(.*?)\"', challenge_form, flags=re.S).group(1).split('?')[1].split('&'):
cloudflare_kwargs["params"].update({param.split('=')[0]:param.split('=')[1]})

for input_ in re.findall(r'\<input.*?(?:\/>|\<\/input\>)', challenge_form, flags=re.S):
for input_ in re.findall(r'[^-] \<input.*?(?:\/>|\<\/input\>)', challenge_form, flags=re.S):
if re.search(r'name=\"(.*?)\"',input_, flags=re.S).group(1) != 'jschl_answer':
if method == 'POST':
cloudflare_kwargs["data"].update({re.search(r'name=\"(.*?)\"',input_, flags=re.S).group(1):
Expand Down Expand Up @@ -246,22 +246,23 @@ def solve_cf_challenge(self, resp, **original_kwargs):

def solve_challenge(self, body, domain):
try:
all_scripts = re.findall(r'\<script type\=\"text\/javascript\"\>\n(.*?)\<\/script\>',body, flags=re.S)
javascript = next(filter(lambda w: "jschl-answer" in w,all_scripts)) #find the script tag which would have obfuscated js
javascript = re.search(r'\<script type\=\"text\/javascript\"\>\n(.*?)\<\/script\>',body, flags=re.S).group(1) # find javascript

challenge, ms = re.search(
r"setTimeout\(function\(\){\s*(var "
r"s,t,o,p,b,r,e,a,k,i,n,g,f.+?\r?\n[\s\S]+?a\.value\s*=.+?)\r?\n"
r"(?:[^{<>]*},\s*(\d{4,}))?",
r"s,t,o,p, b,r,e,a,k,i,n,g,cpo,f.+?\r?\n[\s\S]+?a\.value\s*=.+?)\r?\n"
r"(?:[^{<>]*},\s*(\d{4,}))",
javascript, flags=re.S
).groups()

# The challenge requires `document.getElementById` to get this content.
# Future proofing would require escaping newlines and double quotes
innerHTML = ''
innerHTML = {}
for i in javascript.split(';'):
if i.strip().split('=')[0].strip() == 'k': # from what i found out from pld example K var in
k = i.strip().split('=')[1].strip(' \'') # javafunction is for innerHTML this code to find it
innerHTML = re.search(r'\<div.*?id\=\"'+k+r'\".*?\>(.*?)\<\/div\>',body).group(1) #find innerHTML
k = re.finditer(r'\<div.*?id\=\"('+k+r'\d+)\".*?\>(.*?)\<\/div\>',body) #find innerHTML
innerHTML = {x.group(1): x.group(2) for x in k}

# Prefix the challenge with a fake document object.
# Interpolate the domain, div contents, and JS challenge.
Expand All @@ -271,8 +272,9 @@ def solve_challenge(self, body, domain):
createElement: function () {
return { firstChild: { href: "http://%s/" } }
},
getElementById: function () {
return {"innerHTML": "%s"};
getElementById: function (id) {
var data = %s;
return {"innerHTML": data[id]};
}
};

Expand All @@ -282,6 +284,7 @@ def solve_challenge(self, body, domain):
innerHTML,
challenge,
)
challenge = re.sub(r'setInterval\(.+?\d\),', '', challenge)
# Encode the challenge for security while preserving quotes and spacing.
challenge = b64encode(challenge.encode("utf-8")).decode("ascii")
# Use the provided delay, parsed delay, or default to 8 secs
Expand Down Expand Up @@ -336,7 +339,7 @@ def solve_challenge(self, body, domain):
except Exception:
logging.error("Error executing Cloudflare IUAM Javascript. %s" % BUG_REPORT)
raise

try:
float(result)
except Exception:
Expand Down