관리-도구
편집 파일: oracle.cpython-39.pyc
a f�Wc# � @ s� d Z ddlmZmZ ddlmZ ddlZddlZe�e �Z ddl m Z m Z ddlmZmZmZmZmZ ddlmZ ddlm mZ dd gZdd d �ZdZ G dd� dej ej �Z G dd� dej ej!�Z"dS )z3passlib.handlers.oracle - Oracle DB Password Hashes� )�hexlify� unhexlify)�sha1N)� to_unicode� xor_bytes)�irange�u� uascii_to_str�unicode� str_to_uascii)�des_encrypt_blockZ oracle10gZ oracle11g� � c C sT ||t |� d 7 }|}tdt |�d�D ]$}t||||d � �}t| |�}q*|S )a� performs des-cbc encryption, returns only last block. this performs a specific DES-CBC encryption implementation as needed by the Oracle10 hash. it probably won't be useful for other purposes as-is. input value is null-padded to multiple of 8 bytes. :arg key: des key as bytes :arg value: value to encrypt, as bytes. :param iv: optional IV :param pad: optional pad byte :returns: last block of DES-CBC encryption of all ``value``'s byte blocks. � r )�lenr r r )�key�valueZivZpad�hash�offset�chunk� r �;/usr/lib/python3.9/site-packages/passlib/handlers/oracle.py�des_cbc_encrypt s r s #Eg����c @ s2 e Zd ZdZd ZejZdZe dd� �Z dd� Z dS )�oracle10a� This class implements the password hash used by Oracle up to version 10g, and follows the :ref:`password-hash-api`. It does a single round of hashing, and relies on the username as the salt. The :meth:`~passlib.ifc.PasswordHash.hash`, :meth:`~passlib.ifc.PasswordHash.genhash`, and :meth:`~passlib.ifc.PasswordHash.verify` methods all require the following additional contextual keywords: :type user: str :param user: name of oracle user account this password is associated with. � c C s |� � S )N)�upper)�clsr r r r � _norm_hashI s zoracle10._norm_hashc C s\ t |t�r|�d�}t| jddd�}|| �� �d�}tt|�}t||�}t |��d��� S )N�utf-8�user)Zparamz utf-16-be�ascii) � isinstance�bytes�decoder r r �encoder �ORACLE10_MAGICr )�self�secretr �inputr r r r �_calc_checksumM s zoracle10._calc_checksumN) �__name__� __module__� __qualname__�__doc__�name�uhZ HEX_CHARS�checksum_chars� checksum_size� classmethodr r) r r r r r 4 s r c @ s^ e Zd ZdZd ZdZdZejZ d Z Z ejZ e �ed�e j�Zedd� �Zdd � Zd d � Zd S ) �oracle11aE This class implements the Oracle11g password hash, and follows the :ref:`password-hash-api`. It supports a fixed-length salt. The :meth:`~passlib.ifc.PasswordHash.using` method accepts the following optional keywords: :type salt: str :param salt: Optional salt string. If not specified, one will be autogenerated (this is recommended). If specified, it must be 20 hexadecimal characters. :type relaxed: bool :param relaxed: By default, providing an invalid value for one of the other keywords will result in a :exc:`ValueError`. If ``relaxed=True``, and the error can be corrected, a :exc:`~passlib.exc.PasslibHashWarning` will be issued instead. Correctable errors include ``salt`` strings that are too long. .. versionadded:: 1.6 )�salt�( � z/^S:(?P<chk>[0-9a-f]{40})(?P<salt>[0-9a-f]{20})$c C sH t |dd�}| j�|�}|s(tj�| ��|�dd�\}}| ||�� d�S )Nr r r4 �chk)r4 �checksum)r � _hash_regex�matchr/ �excZInvalidHashError�groupr )r r �mr4 r7 r r r � from_string� s zoracle11.from_stringc C s( | j }td�|�� | j�� f }t|�S )NzS:%s%s)r8 r r r4 r )r& r7 r r r r � to_string� s zoracle11.to_stringc C s< t |t�r|�d�}t|t| j�d�� ��� }t|��� S )Nr r ) r! r r$ r r r4 � hexdigestr r )r& r' r7 r r r r) � s zoracle11._calc_checksumN)r* r+ r, r- r. Z setting_kwdsr1 r/ ZUPPER_HEX_CHARSr0 Z min_salt_sizeZ max_salt_sizeZ salt_chars�re�compiler �Ir9 r2 r> r? r) r r r r r3 h s r3 )r r )#r- Zbinasciir r Zhashlibr rA ZloggingZ getLoggerr* �logZ passlib.utilsr r Zpasslib.utils.compatr r r r r Zpasslib.crypto.desr Zpasslib.utils.handlersZutils�handlersr/ �__all__r r% ZHasUserContextZ StaticHandlerr ZHasSaltZGenericHandlerr3 r r r r �<module> s � 4