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Rollback server.py

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Namhyeon Go 2024-02-22 11:40:25 +09:00 committed by GitHub
parent e65e9cba14
commit 3165a4441f
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1 changed files with 10 additions and 13 deletions
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server.py
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@ -156,7 +156,6 @@ def proxy_connect(webserver, conn):
def proxy_check_filtered(data, webserver, port, scheme, method, url):
filtered = False
decisions = []
# prevent cache confusing
if data.find(b'<title>Welcome to nginx!</title>') > -1:
@ -174,14 +173,12 @@ def proxy_check_filtered(data, webserver, port, scheme, method, url):
data_length = len(data)
text = data.decode(client_encoding, errors='ignore')
error_rate = (data_length - len(text)) / data_length
if error_rate > 0.1: # it is a binary data
if error_rate > 0.2: # it is a binary data
return False
# extract suspicious ID
# check ID with K-Anonymity strategy
pattern = r'\b(?:(?<=\/@)|(?<=acct:))([a-zA-Z0-9]{10})\b'
matches = list(set(re.findall(pattern, text)))
# check ID with K-Anonymity strategy
if len(matches) > 0:
print ("[*] Found ID: %s" % (', '.join(matches)))
try:
@ -190,16 +187,18 @@ def proxy_check_filtered(data, webserver, port, scheme, method, url):
print ("[*] K-Anonymity strategy not working! %s" % (str(e)))
filtered = True
'''
# check ID with VowelRatio10 strategy
if filtered and len(matches) > 0:
def vowel_ratio_test(s):
ratio = calculate_vowel_ratio(s)
return ratio > 0.2 and ratio < 0.7
decisions.append(not all(map(vowel_ratio_test, matches)))
filtered = not all(map(vowel_ratio_test, matches))
'''
# check ID with Palindrome5 strategy
if filtered and len(matches) > 0:
decisions.append(not all(map(has_palindrome, matches)))
filtered = not all(map(has_palindrome, matches))
# check an attached images (check images with Not-CAPTCHA strategy)
if not filtered and len(matches) > 0 and truecaptcha_userid != '':
@ -218,6 +217,9 @@ def proxy_check_filtered(data, webserver, port, scheme, method, url):
urls = re.findall(r'https://[^\s"]+\.webp', text)
if len(urls) > 0:
for url in urls:
if filtered:
break
print ("[*] downloading... %s" % (url))
encoded_image = webp_to_png_base64(url)
print ("[*] downloaded.")
@ -227,17 +229,12 @@ def proxy_check_filtered(data, webserver, port, scheme, method, url):
solved = truecaptcha_solve(encoded_image)
if solved:
print ("[*] solved: %s" % (solved))
decisions.append(solved.lower() in ['ctkpaarr', 'spam'])
filtered = solved.lower() in ['ctkpaarr', 'spam']
else:
print ("[*] not solved")
except Exception as e:
print ("[*] Not CAPTCHA strategy not working! %s" % (str(e)))
# make decision
decided = any(decisions)
if decided:
filtered = filtered or decided
# take action
if filtered:
print ("[*] Filtered from %s:%s" % (webserver.decode(client_encoding), str(port)))