U gJ @slddlmZddlmZddlmZddlmZmZdddgZGd ddZ Gd ddZ Gd ddZ d S) ) annotations)Sequence)Frame) ExtensionNameExtensionParameter ExtensionClientExtensionFactoryServerExtensionFactoryc@sBeZdZUdZded<ddddddd d Zddd d d ZdS)rz% Base class for extensions. rnameN)max_sizerz int | None)framer returncCstdS)a Decode an incoming frame. Args: frame: Incoming frame. max_size: Maximum payload size in bytes. Returns: Decoded frame. Raises: PayloadTooBig: If decoding the payload exceeds ``max_size``. NNotImplementedError)selfr r r>/tmp/pip-unpacked-wheel-dx_q7dq3/websockets/extensions/base.pydecodeszExtension.decode)r rcCstdS)z Encode an outgoing frame. Args: frame: Outgoing frame. Returns: Encoded frame. Nr)rr rrrencode&s zExtension.encode)__name__ __module__ __qualname____doc____annotations__rrrrrrr s c@s:eZdZUdZded<ddddZdd d d d d ZdS)r z: Base class for client-side extension factories. rr zlist[ExtensionParameter])rcCstdS)z Build parameters to send to the server for this extension. Returns: Parameters to send to the server. Nr)rrrrget_request_params=sz)ClientExtensionFactory.get_request_paramsSequence[ExtensionParameter]Sequence[Extension]rparamsaccepted_extensionsrcCstdS)ah Process parameters received from the server. Args: params: Parameters received from the server for this extension. accepted_extensions: List of previously accepted extensions. Returns: An extension instance. Raises: NegotiationError: If parameters aren't acceptable. Nrrrr rrrprocess_response_paramsGsz.ClientExtensionFactory.process_response_paramsN)rrrrrrr"rrrrr 4s  c@s,eZdZUdZded<dddddd Zd S) r z: Base class for server-side extension factories. rr rrz*tuple[list[ExtensionParameter], Extension]rcCstdS)a Process parameters received from the client. Args: params: Parameters received from the client for this extension. accepted_extensions: List of previously accepted extensions. Returns: 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. Nrr!rrrprocess_request_paramsfsz-ServerExtensionFactory.process_request_paramsN)rrrrrr#rrrrr ]s N) __future__rtypingrframesrrr__all__rr r rrrrs    ()