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a ��Jh � @ sx d Z ddlZddlmZ ddlmZmZmZ ddlm Z ddl m Z ddl m Z er`d d lmZ d ZG d d � d e �ZdS ) z,Caching SHA2 Password Authentication Plugin.� N)�sha256)� TYPE_CHECKING�Any�Optional)�InterfaceError)�logger� )�MySQLAuthPlugin� )� MySQLSocket�"MySQLCachingSHA2PasswordAuthPluginc @ s� e Zd ZU dZdZeed< eed�dd�Ze e d�dd ��Z e e d�d d ��Z eeee d �d d�Zdeeed�dd�Zdeeed�dd�ZdS )r z�Class implementing the MySQL caching_sha2_password authentication plugin Note that encrypting using RSA is not supported since the Python Standard Library does not provide this OpenSSL functionality. � �perform_full_authentication)� auth_data�returnc C s| |s t d��| jsdS t| j�� ��� }t� }|�t|��� � |�|� |�� }dd� t||�D �}tjdg|�R � }|S )z�Return a scramble of the password using a Nonce sent by the server. The scramble is of the form: XOR(SHA2(password), SHA2(SHA2(SHA2(password)), Nonce)) z"Missing authentication data (seed)� c S s g | ]\}}||A �qS � r )�.0�h1�h2r r �f/home/agenciai/.local/lib/python3.9/site-packages/mysql/connector/aio/plugins/caching_sha2_password.py� <listcomp>J r z@MySQLCachingSHA2PasswordAuthPlugin._scramble.<locals>.<listcomp>Z32B) r � _passwordr �encode�digest�update�zip�struct�pack)�selfr Zhash1Zhash2Z hash2_digestZxoredZhash3r r r � _scramble8 s z,MySQLCachingSHA2PasswordAuthPlugin._scramble)r c C s dS )zPlugin official name.Zcaching_sha2_passwordr �r r r r �nameN s z'MySQLCachingSHA2PasswordAuthPlugin.namec C s dS )z'Signals whether or not SSL is required.Fr r! r r r � requires_sslS s z/MySQLCachingSHA2PasswordAuthPlugin.requires_ssl)r �kwargsr c K s> |sdS t |�dkr | �|�S |d | jkr:| j�� d S dS )a� Make the client's authorization response. Args: auth_data: Authorization data. kwargs: Custom configuration to be passed to the auth plugin when invoked. The parameters defined here will override the ones defined in the auth plugin itself. Returns: packet: Client's authorization response. Nr r � )�lenr r r r )r r r$ r r r � auth_responseX s z0MySQLCachingSHA2PasswordAuthPlugin.auth_responser )�sockr r$ r c � s8 | j |fi |��}|r&|�|�I dH t|�� I dH �S )aE Handles server's `auth more data` response. Args: sock: Pointer to the socket connection. auth_data: Authentication method data (from a packet representing an `auth more data` response). kwargs: Custom configuration to be passed to the auth plugin when invoked. The parameters defined here will override the ones defined in the auth plugin itself. Returns: packet: Last server's response after back-and-forth communication. N)r' �write�bytes�read)r r( r r$ �responser r r �auth_more_responsen s z5MySQLCachingSHA2PasswordAuthPlugin.auth_more_responsec � sf | j |fi |��}|du r"td��t�d|t|�� |�|�I dH t|�� I dH �}t�d|� |S )aS Handles server's `auth switch request` response. Args: sock: Pointer to the socket connection. auth_data: Plugin provided data (extracted from a packet representing an `auth switch request` response). kwargs: Custom configuration to be passed to the auth plugin when invoked. The parameters defined here will override the ones defined in the auth plugin itself. Returns: packet: Last server's response after back-and-forth communication. NzGot a NULL auth responsez# request: %s size: %sz # server response packet: %s)r' r r �debugr& r) r* r+ )r r( r r$ r, Zpktr r r �auth_switch_response� s z7MySQLCachingSHA2PasswordAuthPlugin.auth_switch_responseN)�__name__� __module__� __qualname__�__doc__r �int�__annotations__r* r �property�strr" �boolr# r r r' r- r/ r r r r r / s � �)r3 r �hashlibr �typingr r r Zmysql.connector.errorsr Zmysql.connector.loggerr � r �networkr ZAUTHENTICATION_PLUGIN_CLASSr r r r r �<module> s
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