From dd2c66bf35a470248bb28942378599057c5adb41 Mon Sep 17 00:00:00 2001
From: Cathy Hu <cathy.hu@fau.de>
Date: Mon, 6 Jul 2020 11:13:59 +0200
Subject: [PATCH] [twitter] Add twitter oauth REST endpoint

---
 kibicara/platforms/twitter/webapi.py | 61 +++++++++++++++++++++++++++-
 1 file changed, 60 insertions(+), 1 deletion(-)

diff --git a/kibicara/platforms/twitter/webapi.py b/kibicara/platforms/twitter/webapi.py
index 40f6c13..b56b640 100644
--- a/kibicara/platforms/twitter/webapi.py
+++ b/kibicara/platforms/twitter/webapi.py
@@ -2,9 +2,68 @@
 #
 # SPDX-License-Identifier: 0BSD
 
-from fastapi import APIRouter
+from fastapi import APIRouter, Depends, HTTPException, Response, status
+from kibicara.config import config
 from kibicara.platforms.twitter.bot import spawner
 from kibicara.platforms.twitter.model import Twitter
+from kibicara.webapi.hoods import get_hood
+from logging import getLogger
+from sqlite3 import IntegrityError
+from peony.oauth_dance import get_oauth_token, get_access_token
+
+
+logger = getLogger(__name__)
+
+
+async def get_twitter(twitter_id: int, hood=Depends(get_hood)):
+    try:
+        return await Twitter.objects.get(id=twitter_id, hood=hood)
+    except NoMatch:
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND)
 
 
 router = APIRouter()
+twitter_callback_router = APIRouter()
+
+
+@router.post('/', status_code=status.HTTP_201_CREATED)
+async def twitter_create(response: Response, hood=Depends(get_hood)):
+    try:
+        twitter = await Twitter.objects.create(hood=hood)
+        oauth_token = await get_oauth_token(
+            config['twitter_consumer_key'],
+            config['twitter_consumer_secret'],
+            callback_uri='http://127.0.0.1:8000/api/twitter/callback',
+        )
+        if oauth_token['oauth_callback_confirmed'] != 'true':
+            raise HTTPException(status_code=status.HTTP_503_SERVICE_UNAVAILABLE)
+        await twitter.update(
+            access_token=oauth_token['oauth_token'],
+            access_token_secret=oauth_token['oauth_token_secret'],
+        )
+        response.headers['Location'] = '%d' % twitter.id
+        return twitter
+    except IntegrityError:
+        raise HTTPException(status_code=status.HTTP_409_CONFLICT)
+
+
+@twitter_callback_router.get('/callback')
+async def twitter_read_callback(oauth_token: str, oauth_verifier: str):
+    try:
+        twitter = await Twitter.objects.filter(access_token=oauth_token).get()
+        access_token = await get_access_token(
+            config['twitter_consumer_key'],
+            config['twitter_consumer_secret'],
+            twitter.access_token,
+            twitter.access_token_secret,
+            oauth_verifier,
+        )
+        await twitter.update(
+            access_token=access_token['oauth_token'],
+            access_token_secret=access_token['oauth_token_secret'],
+        )
+        spawner.start(twitter)
+        response.headers['Location'] = '%d' % twitter.id
+        return []
+    except IntegrityError:
+        raise HTTPException(status_code=status.HTTP_409_CONFLICT)