LibreTranslate/libretranslate/secret.py

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import base64
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import random
import string
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from functools import lru_cache
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from libretranslate.storage import get_storage
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def to_base(n, b):
if n == 0:
return 0
if n < 0:
sign = -1
else:
sign = 1
n *= sign
digits = []
while n:
digits.append(str(n % b))
n //= b
return int(''.join(digits[::-1])) * sign
@lru_cache(maxsize=4)
def obfuscate(input_str):
encoded = [ord(ch) for ch in input_str]
ops = ['+', '-', '*', '']
parts = []
for c in encoded:
num = random.randint(1, 100)
op = random.choice(ops)
if op == '+':
v = c + num
op = '-'
elif op == '-':
v = c - num
op = '+'
if random.randint(0, 1) == 0:
op = '+false+'
elif op == '*':
v = c * num
op = '/'
if random.randint(0, 1) == 0:
op = '/**\\/*//'
use_dec = random.randint(0, 1) == 0
base = random.randint(4, 7)
if op == '':
if use_dec:
parts.append(f'_({c})')
else:
parts.append(f'_(p({to_base(c, base)},{base}))')
else:
if use_dec:
parts.append(f'_({v}{op}{num})')
else:
parts.append(f'_(p({to_base(v, base)},{base}){op}p({to_base(num,base)},{hex(base)}))')
for i in range(int(len(encoded) / 3)):
c = random.randint(1, 100)
parts.insert(random.randint(0, len(parts)), f"_(/*_({c})*/)")
for i in range(int(len(encoded) / 3)):
parts.insert(random.randint(0, len(parts)), f"\n[]\n")
code = '(_=String.fromCharCode,p=parseInt,' + '+'.join(parts) + ')'
return code
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def generate_secret():
return ''.join(random.choices(string.ascii_uppercase + string.digits, k=7))
def rotate_secrets():
s = get_storage()
secret_1 = s.get_str("secret_1")
s.set_str("secret_0", secret_1)
s.set_str("secret_1", generate_secret())
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def secret_match(secret):
s = get_storage()
return secret == s.get_str("secret_0") or secret == s.get_str("secret_1")
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def secret_bogus_match(secret):
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if random.randint(0, 1) == 0:
return secret == get_bogus_secret()
return False
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def get_current_secret():
return get_storage().get_str("secret_1")
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def get_current_secret_b64():
return base64.b64encode(get_current_secret().encode("utf-8")).decode("utf-8")
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def get_current_secret_js():
return obfuscate(get_current_secret_b64())
def get_bogus_secret():
return get_storage().get_str("secret_bogus")
def get_bogus_secret_b64():
return base64.b64encode(get_bogus_secret().encode("utf-8")).decode("utf-8")
def get_bogus_secret_js():
return obfuscate(get_bogus_secret_b64())
@lru_cache(maxsize=1)
def get_emoji():
return random.choice(["😂", "🤪", "😜", "🤣", "😹", "🐒", "🙈", "🤡", "🥸", "😆", "🥴", "🐸", "🐤", "🐒🙊", "👀", "💩", "🤯", "😛", "🤥", "👻"])
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def setup(args):
if args.api_keys and args.require_api_key_secret:
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s = get_storage()
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if not s.exists("secret_0"):
s.set_str("secret_0", generate_secret())
if not s.exists("secret_1"):
s.set_str("secret_1", generate_secret())
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if not s.exists("secret_bogus"):
s.set_str("secret_bogus", generate_secret())