PK ! ]m m cred_encryption/__init__.py__version__ = '0.1.0'
from cred_encryption.encryption import application
def run():
application.run()
PK ! Y T~ cred_encryption/encryption.pyimport os
import base64
from cryptography.fernet import Fernet
from cleo import Application, Command as BaseCommand
from typing import Optional
class Command(BaseCommand):
@property
def secret_key(self) -> Optional[str]:
try:
return os.environ['OLAS_SECURITYCONFIG_HASH'][:32]
except KeyError:
self.line('Unable to perform encrypt/decrypt operations because the environmental variable '
'`OLAS_SECURITYCONFIG_HASH` is not set')
return None
class EncryptCommand(Command):
"""
Encrypts a given key
encrypt
{value : The value to encrypt}
"""
def handle(self) -> None:
value = self.argument('value')
SECRET_KEY = self.secret_key
if SECRET_KEY:
key = base64.urlsafe_b64encode(bytes(SECRET_KEY.encode()))
cipher_suite = Fernet(key)
plain_text = cipher_suite.encrypt(value.encode())
self.line('ENCRYPTED VALUE:')
self.line(f'{plain_text.decode()}')
class DecryptCommand(Command):
"""
Decrypts a given key
decrypt
{cipher-text : The value to decrypt}
"""
def handle(self) -> None:
cipher_text = self.argument('cipher-text')
SECRET_KEY = self.secret_key
if SECRET_KEY:
key = base64.urlsafe_b64encode(bytes(SECRET_KEY.encode()))
cipher_suite = Fernet(key)
plain_text = cipher_suite.decrypt(cipher_text.encode())
self.line('DECRYPTED VALUE:')
self.line(f'{plain_text.decode()}')
application = Application()
application.add(DecryptCommand())
application.add(EncryptCommand())
application.run()
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