ticketfrei3/kibicara/webapi/hoods/badwords.py

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# Copyright (C) 2020 by Thomas Lindner <tom@dl6tom.de>
# Copyright (C) 2020 by Cathy Hu <cathy.hu@fau.de>
#
# SPDX-License-Identifier: 0BSD
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""" REST API endpoints for managing badwords.
Provides API endpoints for adding, removing and reading regular expressions that block a
received message to be dropped by a censor. This provides a message filter customizable
by the hood admins.
"""
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from fastapi import APIRouter, Depends, HTTPException, Response, status
from kibicara.model import BadWord
from kibicara.webapi.hoods import get_hood
from ormantic.exceptions import NoMatch
from pydantic import BaseModel
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from re import compile as regex_compile, error as RegexError
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from sqlite3 import IntegrityError
class BodyBadWord(BaseModel):
pattern: str
async def get_badword(badword_id: int, hood=Depends(get_hood)):
try:
return await BadWord.objects.get(id=badword_id, hood=hood)
except NoMatch:
raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)
router = APIRouter()
@router.get(
'/',
# TODO response_model,
operation_id='get_badwords',
)
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async def badword_read_all(hood=Depends(get_hood)):
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""" Get all badwords of hood with id **hood_id**. """
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return await BadWord.objects.filter(hood=hood).all()
@router.post(
'/',
status_code=status.HTTP_201_CREATED,
# TODO response_model,
operation_id='create_badword',
)
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async def badword_create(
values: BodyBadWord, response: Response, hood=Depends(get_hood)
):
"""Creates a new badword for hood with id **hood_id**.
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- **pattern**: Regular expression which is used to match a badword.
"""
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try:
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regex_compile(values.pattern)
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badword = await BadWord.objects.create(hood=hood, **values.__dict__)
response.headers['Location'] = '%d' % badword.id
return badword
except IntegrityError:
raise HTTPException(status_code=status.HTTP_409_CONFLICT)
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except RegexError:
raise HTTPException(status_code=status.HTTP_422_UNPROCESSABLE_ENTITY)
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@router.get(
'/{badword_id}',
# TODO response_model,
operation_id='get_badword',
)
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async def badword_read(badword=Depends(get_badword)):
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""" Reads badword with id **badword_id** for hood with id **hood_id**. """
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return badword
@router.put(
'/{badword_id}',
status_code=status.HTTP_204_NO_CONTENT,
operation_id='update_badword',
)
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async def badword_update(values: BodyBadWord, badword=Depends(get_badword)):
"""Updates badword with id **badword_id** for hood with id **hood_id**.
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- **pattern**: Regular expression which is used to match a badword
"""
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await badword.update(**values.__dict__)
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return Response(status_code=status.HTTP_204_NO_CONTENT)
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@router.delete(
'/{badword_id}',
status_code=status.HTTP_204_NO_CONTENT,
operation_id='delete_badword',
)
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async def badword_delete(badword=Depends(get_badword)):
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""" Deletes badword with id **badword_id** for hood with id **hood_id**. """
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await badword.delete()
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return Response(status_code=status.HTTP_204_NO_CONTENT)