Telodendria/src/include/Filter.h

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/*
* Copyright (C) 2022-2023 Jordan Bancino <@jordan:bancino.net>
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef TELODENDRIA_FILTER_H
#define TELODENDRIA_FILTER_H
/***
* @Nm Filter
* @Nd Validate JSON filters and apply them to events.
* @Dd June 17 2023
*
* The Matrix Client-Server API defines a mechanism for defining
* filters and applying them to certain endpoints. This API allows
* those filters to be validated and applied to events.
*/
/**
* Validate a JSON filter as provided by a client. This function
* takes in a filter and returns a JSON response if a validation
* error occurs. If an error occurs, the response should be returned
* to the client. If no error occurs, then NULL will be returned and
* the caller may proceed with the assumption that the filter is
* valid.
*/
extern HashMap *
FilterValidate(HashMap *);
/**
* Apply the given JSON filter to the given event, returning a
* new event JSON with the filter applied, or NULL if the event
* is excluded totally by the rules of the filter.
*/
extern HashMap *
FilterEvent(HashMap *, HashMap *);
#endif /* TELODENDRIA_FILTER_H */