113 lines
3.8 KiB
Python
113 lines
3.8 KiB
Python
# Copyright (C) 2020 by Maike <maike@systemli.org>
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#
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# SPDX-License-Identifier: 0BSD
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from fastapi import APIRouter, Depends, HTTPException, status
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from kibicara.platforms.email.bot import spawner
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from kibicara.platforms.email.model import Email, EmailRecipients
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from kibicara.platformapi import Message
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from kibicara.config import config
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from kibicara.email import send_email
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from kibicara.model import Hood
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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 sqlite3 import IntegrityError
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from nacl.encoding import URLSafeBase64Encoder
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from nacl.secret import SecretBox
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from os import urandom
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class BodyMessage(BaseModel):
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text: str
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to: str
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author: str
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secret: str
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class Recipient(BaseModel):
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email: str
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async def get_email_bot(to):
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hood_name = to.split('@')[0]
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hood = await Hood.objects.get(name=hood_name)
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try:
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return await Email.objects.get(hood=hood.id)
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except NoMatch:
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)
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hood_router = APIRouter()
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mailbox_router = APIRouter()
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@hood_router.post('/', status_code=status.HTTP_201_CREATED)
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async def email_create(hood=Depends(get_hood)):
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try:
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emailbot = await Email.objects.create(hood=hood, secret=urandom(32))
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spawner.start(emailbot)
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return emailbot
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except IntegrityError:
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raise HTTPException(status_code=status.HTTP_409_CONFLICT)
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@hood_router.delete('/', status_code=status.HTTP_200_OK)
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async def email_delete(hood=Depends(get_hood)):
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# who calls this function usually?
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email_bot = await Email.objects.get(hood=hood)
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spawner.stop(email_bot)
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await EmailRecipients.objects.delete_many(hood=hood)
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await email_bot.delete()
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@hood_router.post('/recipient/')
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async def email_recipient_create(recipient: Recipient, hood=Depends(get_hood)):
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secretbox = SecretBox(Email.secret)
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token = secretbox.encrypt({'email': recipient.email,}, encoder=URLSafeBase64Encoder)
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asciitoken = token.decode('ascii')
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confirm_link = (
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config['root_url'] + "api/" + hood.id + "/email/recipient/confirm/" + asciitoken
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)
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send_email(
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recipient.email,
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"Subscribe to Kibicara " + hood.name,
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sender=hood.name,
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body="To confirm your subscription, follow this link: " + confirm_link,
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)
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return status.HTTP_200_OK
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@hood_router.post('/recipient/confirm/{token}')
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async def email_recipient_confirm(token, hood=Depends(get_hood)):
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secretbox = SecretBox(Email.secret)
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json = secretbox.decrypt(token.encode('ascii'), encoder=URLSafeBase64Encoder)
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try:
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await EmailRecipients.objects.create(hood=hood.id, email=json['email'])
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return status.HTTP_201_CREATED
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except IntegrityError:
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raise HTTPException(status_code=status.HTTP_409_CONFLICT)
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@hood_router.get('/unsubscribe/{token}', status_code=status.HTTP_200_OK)
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async def email_recipient_unsubscribe(token, hood=Depends(get_hood)):
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secretbox = SecretBox(Email.secret)
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json = secretbox.decrypt(token.encode('ascii'), encoder=URLSafeBase64Encoder)
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if hood.id is not json['hood']:
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raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST)
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await EmailRecipients.objects.delete_many(hood=json['hood'], email=json['email'])
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@mailbox_router.post('/messages/')
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async def email_message_create(message: BodyMessage):
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# get bot via "To:" header
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email_bot = await get_email_bot(message.to)
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# check API secret
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if message.secret is not email_bot.secret:
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raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED)
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# pass message.text to bot.py
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if await spawner.get(email_bot).publish(Message(message.text)):
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return status.HTTP_201_CREATED
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else:
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raise HTTPException(status_code=status.HTTP_451_UNAVAILABLE_FOR_LEGAL_REASONS)
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