2023-09-21 07:47:29 -06:00
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# Copyright 2022 The Matrix.org Foundation C.I.C.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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2023-09-25 09:19:08 -06:00
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from typing import TYPE_CHECKING
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from synapse._pydantic_compat import HAS_PYDANTIC_V2
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if TYPE_CHECKING or HAS_PYDANTIC_V2:
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from pydantic.v1 import BaseModel, Extra
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else:
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from pydantic import BaseModel, Extra
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2022-08-15 13:05:57 -06:00
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class RequestBodyModel(BaseModel):
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"""A custom version of Pydantic's BaseModel which
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- ignores unknown fields and
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- does not allow fields to be overwritten after construction,
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but otherwise uses Pydantic's default behaviour.
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Ignoring unknown fields is a useful default. It means that clients can provide
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unstable field not known to the server without the request being refused outright.
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Subclassing in this way is recommended by
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https://pydantic-docs.helpmanual.io/usage/model_config/#change-behaviour-globally
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"""
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class Config:
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# By default, ignore fields that we don't recognise.
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extra = Extra.ignore
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# By default, don't allow fields to be reassigned after parsing.
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allow_mutation = False
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