:jdZddlmZddlmZddlmZddlZddlZGddZ e dZ dd e d e d e fd Z dd e d e d e fdZ dde d e d efdZy)z Encryption utility module for BookBeach application Provides encryption and decryption functionality using Fernet symmetric encryption )Fernet)hashes) PBKDF2HMACNcXeZdZdZdefdZdefdZdedefdZdedefd Z d ede fd Z y ) PasswordEncryptionz5Handle password encryption and decryption using a key key_phrasec<||_|j|_y)z Initialize the encryption handler with a key phrase Args: key_phrase (str): The key phrase to use for encryption/decryption N)r_create_fernet_key_fernet)selfrs 6/var/www/bookbeach.app/backend/app/utils/encryption.py__init__zPasswordEncryption.__init__s%..0 returncd}ttjd|d}tj|j |j j}t|S)z'Create a Fernet key from the key phrasesbookbeach_salt_123456789012345 i) algorithmlengthsalt iterations) rrSHA256base64urlsafe_b64encodederiverencoder)r rkdfkeys r r z%PasswordEncryption._create_fernet_keysW1mmo   &&szz$//2H2H2J'KLc{r plaintextc|sy|jj|j}tj|j S)z Encrypt a plaintext string Args: plaintext (str): The string to encrypt Returns: str: The encrypted string (base64 encoded) )r encryptrrrdecode)r rencrypted_bytess r r!zPasswordEncryption.encrypt(sA,,..y/?/?/AB''8??AArencrypted_textc|sy tj|j}|jj |}|j S#t $r}tdt|d}~wwxYw)z Decrypt an encrypted string Args: encrypted_text (str): The encrypted string (base64 encoded) Returns: str: The decrypted plaintext string r zFailed to decrypt text: N) rurlsafe_b64decoderr decryptr" Exception ValueErrorstr)r r$r#decrypted_byteses r r'zPasswordEncryption.decrypt8su B$66~7L7L7NOO"ll22?CO"))+ + B7Ax@A A BsA A A8A33A8textc<|sy |j|y#YyxYw)z Check if a string appears to be encrypted Args: text (str): The string to check Returns: bool: True if the string appears to be encrypted FT)r')r r-s r is_encryptedzPasswordEncryption.is_encryptedLs(  LL  sN) __name__ __module__ __qualname____doc__r*rrr r!r'boolr/rr rr s\?131 F BBB BcBcB(rr babagammapasswordrrc:t|}|j|S)z Encrypt a password using the specified key phrase Args: password (str): The password to encrypt key_phrase (str): The key phrase to use for encryption Returns: str: The encrypted password )rr!)r7r encryptions r encrypt_passwordr:es$J/J   h ''rencrypted_passwordc:t|}|j|S)z Decrypt a password using the specified key phrase Args: encrypted_password (str): The encrypted password key_phrase (str): The key phrase to use for decryption Returns: str: The decrypted password )rr')r;rr9s r decrypt_passwordr=ts $J/J   0 11rr-c:t|}|j|S)z Check if a string is encrypted Args: text (str): The string to check key_phrase (str): The key phrase to use for testing decryption Returns: bool: True if the string appears to be encrypted )rr/)r-rr9s r r/r/s$J/J  " "4 ((r)r6)r3cryptography.fernetrcryptography.hazmat.primitivesr)cryptography.hazmat.primitives.kdf.pbkdf2rrosrDEFAULT_ENCRYPTIONr*r:r=r4r/r5rr rDs '1@ QQj( 4 (s ( (c ( 2 2# 2PS 2 )s ) )d )r