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d� Zy)z5Implementing support for MySQL Authentication Plugins� )�sha1N� )�errors)�PY2�isstrc �0 � e Zd ZdZdZdZ dd�Zd� Zd� Zy) �BaseAuthPlugina� Base class for authentication plugins
Classes inheriting from BaseAuthPlugin should implement the method
prepare_password(). When instantiating, auth_data argument is
required. The username, password and database are optional. The
ssl_enabled argument can be used to tell the plugin whether SSL is
active or not.
The method auth_response() method is used to retrieve the password
which was prepared by prepare_password().
F� Nc �J � || _ || _ || _ || _ || _ y)�InitializationN)�
_auth_data� _username� _password� _database� _ssl_enabled)�self� auth_data�username�password�database� ssl_enableds �@C:\Python312\Lib\site-packages\mysql/connector/authentication.py�__init__zBaseAuthPlugin.__init__2 s( � � $���!���!���!��� '��� c � � t �)z�Prepares and returns password to be send to MySQL
This method needs to be implemented by classes inheriting from
this class. It is used by the auth_response() method.
Raises NotImplementedError.
)�NotImplementedError�r s r �prepare_passwordz BaseAuthPlugin.prepare_password; s
� � "�!r c � � | j r;| j s/t j dj | j
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� S )z�Returns the prepared password to send to MySQL
Raises InterfaceError on errors. For example, when SSL is required
by not enabled.
Returns str
z{name} requires SSL)�name)� requires_sslr r �InterfaceError�format� plugin_namer r s r �
auth_responsez BaseAuthPlugin.auth_responseE sT � � � � �T�%6�%6��'�'�(=�(D�(D��%�%� )E� )'� (�
(��$�$�&�&r )NNNF) �__name__�
__module__� __qualname__�__doc__r! r$ r r r% � r r r r ! s( � � � �L��K�IM� "�(�"� 'r r c � � e Zd ZdZdZdZd� Zy)� MySQLNativePasswordAuthPluginzBClass implementing the MySQL Native Password authentication pluginF�mysql_native_passwordc � � | j st j d� �| j sy| j }t | j � r | j j d� }n | j }t r"t |� } t | j � }n|}| j }d} t |� j � }t |� j � }t ||z � j � }t r4t ||� D ��cg c] \ }}t |� t |� z �� } }}n!t ||� D ��cg c]
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ww xY w)z;Prepares and returns password as native MySQL 4.1+ passwordz"Missing authentication data (seed)r zutf-8z Authentication data incorrectN�20Bz Failed scrambling password; {0})r
r r" r r �encoder �buffer� TypeErrorr �digest�zip�ord�struct�pack� Exceptionr# ) r r r �hash4�hash1�hash2�hash3�h1�h3�xored�excs r r z.MySQLNativePasswordAuthPlugin.prepare_passwordY s� � �����'�'�(L�M� M��~�~���>�>�� �� � � ��~�~�,�,�W�5�H��~�~�H� � �h�'�H�
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GN�r& r' r( r) r! r$ r r* r r r, r, S s � �L��L�)�K�&r r, c � � e Zd ZdZdZdZd� Zy)� MySQLClearPasswordAuthPluginzAClass implementing the MySQL Clear Password authentication pluginT�mysql_clear_passwordc �� � | j sy| j }t r&t |t � r|j d� }|dz S t |t
� r|j d� }|dz S �z!Returns password as as clear text� �utf8�r r �
isinstance�unicoder0 �str�r r s r r z-MySQLClearPasswordAuthPlugin.prepare_password� �b � ��~�~���>�>�� ��(�G�,�#�?�?�6�2�� �'�!�!� ��#�
&� ���v�.�H��'�!�!r NrA r* r r rC rC � s � �K��L�(�K� "r rC c � � e Zd ZdZdZdZd� Zy)� MySQLSHA256PasswordAuthPluginz�Class implementing the MySQL SHA256 authentication plugin
Note that encrypting using RSA is not supported since the Python
Standard Library does not provide this OpenSSL functionality.
T�sha256_passwordc �� � | j sy| j }t r&t |t � r|j d� }|dz S t |t
� r|j d� }|dz S rF rI rM s r r z.MySQLSHA256PasswordAuthPlugin.prepare_password� rN r NrA r* r r rP rP � s � �� �L�#�K� "r rP c � � t j � D ] }|j | k( s�|c S t j dj | � � �)a. Return authentication class based on plugin name
This function returns the class for the authentication plugin plugin_name.
The returned class is a subclass of BaseAuthPlugin.
Raises errors.NotSupportedError when plugin_name is not supported.
Returns subclass of BaseAuthPlugin.
z,Authentication plugin '{0}' is not supported)r �__subclasses__r$ r �NotSupportedErrorr# )r$ � authclasss r �get_auth_pluginrW � sU � � $�2�2�4� � � � � �K� /� � � � �
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