102 lines
3 KiB
Python
102 lines
3 KiB
Python
# Copyright (C) 2020 by Thomas Lindner <tom@dl6tom.de>
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# Copyright (C) 2020 by Cathy Hu <cathy.hu@fau.de>
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#
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# SPDX-License-Identifier: 0BSD
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""" REST API endpoints for managing triggers.
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Provides API endpoints for adding, removing and reading regular expressions that allow a
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message to be passed through by a censor. A published message must match one of these
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regular expressions otherwise it gets dropped by the censor. This provides a message
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filter customizable by the hood admins.
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"""
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from fastapi import APIRouter, Depends, HTTPException, Response, status
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from kibicara.model import Trigger
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from kibicara.webapi.hoods import get_hood
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from ormantic.exceptions import NoMatch
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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
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class BodyTrigger(BaseModel):
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pattern: str
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async def get_trigger(trigger_id: int, hood=Depends(get_hood)):
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try:
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return await Trigger.objects.get(id=trigger_id, hood=hood)
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except NoMatch:
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)
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router = APIRouter()
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@router.get(
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'/',
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# TODO response_model,
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operation_id='get_triggers',
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)
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async def trigger_read_all(hood=Depends(get_hood)):
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""" Get all triggers of hood with id **hood_id**. """
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return await Trigger.objects.filter(hood=hood).all()
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@router.post(
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'/',
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status_code=status.HTTP_201_CREATED,
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# TODO response_model,
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operation_id='create_trigger',
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)
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async def trigger_create(
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values: BodyTrigger, response: Response, hood=Depends(get_hood)
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):
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"""Creates a new trigger for hood with id **hood_id**.
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- **pattern**: Regular expression which is used to match a trigger.
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"""
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try:
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regex_compile(values.pattern)
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trigger = await Trigger.objects.create(hood=hood, **values.__dict__)
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response.headers['Location'] = '%d' % trigger.id
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return trigger
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except IntegrityError:
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raise HTTPException(status_code=status.HTTP_409_CONFLICT)
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except RegexError:
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raise HTTPException(status_code=status.HTTP_422_UNPROCESSABLE_ENTITY)
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@router.get(
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'/{trigger_id}',
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# TODO response_model,
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operation_id='get_trigger',
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)
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async def trigger_read(trigger=Depends(get_trigger)):
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""" Reads trigger with id **trigger_id** for hood with id **hood_id**. """
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return trigger
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@router.put(
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'/{trigger_id}',
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status_code=status.HTTP_204_NO_CONTENT,
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operation_id='update_trigger',
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)
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async def trigger_update(values: BodyTrigger, trigger=Depends(get_trigger)):
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"""Updates trigger with id **trigger_id** for hood with id **hood_id**.
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- **pattern**: Regular expression which is used to match a trigger
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"""
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await trigger.update(**values.__dict__)
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@router.delete(
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'/{trigger_id}',
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status_code=status.HTTP_204_NO_CONTENT,
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operation_id='delete_trigger',
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)
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async def trigger_delete(trigger=Depends(get_trigger)):
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""" Deletes trigger with id **trigger_id** for hood with id **hood_id**. """
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await trigger.delete()
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