o
    ˆì_c  ã                   @  sv   d dl mZ d dlmZmZmZmZ ddlmZ ddlm	Z	m
Z
 g d¢ZG dd„ dƒZG d	d
„ d
ƒZG dd„ dƒZdS )é    )Úannotations)ÚListÚOptionalÚSequenceÚTupleé   )Úframes)ÚExtensionNameÚExtensionParameter)Ú	ExtensionÚClientExtensionFactoryÚServerExtensionFactoryc                   @  s6   e Zd ZU dZded< 	 ddœddd„Zddd„ZdS )r   z%
    Base class for extensions.

    r	   ÚnameN)Úmax_sizeÚframeúframes.Framer   úOptional[int]Úreturnc                C  ó   dS )a)  
        Decode an incoming frame.

        Args:
            frame (Frame): incoming frame.
            max_size: maximum payload size in bytes.

        Returns:
            Frame: Decoded frame.

        Raises:
            PayloadTooBig: if decoding the payload exceeds ``max_size``.

        N© )Úselfr   r   r   r   úE/usr/local/lib/python3.10/dist-packages/websockets/extensions/base.pyÚdecode   ó    zExtension.decodec                 C  r   )zš
        Encode an outgoing frame.

        Args:
            frame (Frame): outgoing frame.

        Returns:
            Frame: Encoded frame.

        Nr   )r   r   r   r   r   Úencode*   r   zExtension.encode)r   r   r   r   r   r   )r   r   r   r   )Ú__name__Ú
__module__Ú__qualname__Ú__doc__Ú__annotations__r   r   r   r   r   r   r      s   
 ür   c                   @  s0   e Zd ZU dZded< 	 ddd„Zddd„ZdS )r   z:
    Base class for client-side extension factories.

    r	   r   r   úList[ExtensionParameter]c                 C  r   )z§
        Build parameters to send to the server for this extension.

        Returns:
            List[ExtensionParameter]: Parameters to send to the server.

        Nr   )r   r   r   r   Úget_request_params@   r   z)ClientExtensionFactory.get_request_paramsÚparamsúSequence[ExtensionParameter]Úaccepted_extensionsúSequence[Extension]r   c                 C  r   )aÈ  
        Process parameters received from the server.

        Args:
            params (Sequence[ExtensionParameter]): parameters received from
                the server for this extension.
            accepted_extensions (Sequence[Extension]): list of previously
                accepted extensions.

        Returns:
            Extension: An extension instance.

        Raises:
            NegotiationError: if parameters aren't acceptable.

        Nr   ©r   r"   r$   r   r   r   Úprocess_response_paramsI   r   z.ClientExtensionFactory.process_response_paramsN)r   r    )r"   r#   r$   r%   r   r   )r   r   r   r   r   r!   r'   r   r   r   r   r   7   s   
 
	r   c                   @  s&   e Zd ZU dZded< 	 dd
d„ZdS )r   z:
    Base class for server-side extension factories.

    r	   r   r"   r#   r$   r%   r   ú*Tuple[List[ExtensionParameter], Extension]c                 C  r   )aŒ  
        Process parameters received from the client.

        Args:
            params (Sequence[ExtensionParameter]): parameters received from
                the client for this extension.
            accepted_extensions (Sequence[Extension]): list of previously
                accepted extensions.

        Returns:
            Tuple[List[ExtensionParameter], Extension]: To accept the offer,
            parameters to send to the client for this extension and an
            extension instance.

        Raises:
            NegotiationError: to reject the offer, if parameters received from
                the client aren't acceptable.

        Nr   r&   r   r   r   Úprocess_request_paramsi   r   z-ServerExtensionFactory.process_request_paramsN)r"   r#   r$   r%   r   r(   )r   r   r   r   r   r)   r   r   r   r   r   `   s
   
 r   N)Ú
__future__r   Útypingr   r   r   r   Ú r   r	   r
   Ú__all__r   r   r   r   r   r   r   Ú<module>   s    +)