Divent/bot.py
2022-05-30 17:33:23 +02:00

139 lines
4.1 KiB
Python

from asyncio import new_event_loop
from datetime import timedelta
from os import environ
from typing import List, Optional, Union
from disnake import Client, Guild
from dotenv import load_dotenv
from ics import Calendar, Event # type: ignore
from ics.alarm.display import DisplayAlarm # type: ignore
from quart import Quart, redirect, request, session, url_for
from requests_oauthlib import OAuth2Session # type: ignore
load_dotenv()
DISCORD_TOKEN = environ.get("DISCORD_TOKEN")
OAUTH2_CLIENT_ID = environ.get("OAUTH2_CLIENT_ID")
OAUTH2_CLIENT_SECRET = environ.get("OAUTH2_CLIENT_SECRET")
OAUTH2_REDIRECT_URI = environ.get("OAUTH2_REDIRECT_URI", "callback")
if not DISCORD_TOKEN or not OAUTH2_CLIENT_ID or not OAUTH2_CLIENT_SECRET:
raise Exception(
"Missing some env variables "
"(could be DISCORD_TOKEN, OAUTH2_CLIENT_ID or OAUTH2_CLIENT_SECRET)"
)
API_BASE_URL = environ.get("API_BASE_URL", "https://discordapp.com/api")
AUTHORIZATION_BASE_URL = API_BASE_URL + "/oauth2/authorize"
TOKEN_URL = API_BASE_URL + "/oauth2/token"
class Discord(Client):
async def on_ready(self):
print(f"Logged on as {self.user}!")
client = Discord()
app = Quart(__name__)
app.config["SECRET_KEY"] = OAUTH2_CLIENT_SECRET
def get_guild_by_id(guild_id: Union[int, str]) -> Optional[Guild]:
for guild in client.guilds:
if guild.id == int(guild_id) or guild.vanity_url_code == str(guild_id):
return guild
return None
def token_updater(token: str) -> None:
session["oauth2_token"] = token
def make_oauth_session(
host_url: str,
token: Optional[str] = None,
state: Optional[str] = None,
scope: Optional[List[str]] = None,
) -> OAuth2Session:
print(host_url + OAUTH2_REDIRECT_URI)
return OAuth2Session(
client_id=OAUTH2_CLIENT_ID,
token=token,
state=state,
scope=scope,
redirect_uri=host_url + OAUTH2_REDIRECT_URI,
auto_refresh_kwargs={
"client_id": OAUTH2_CLIENT_ID,
"client_secret": OAUTH2_CLIENT_SECRET,
},
auto_refresh_url=TOKEN_URL,
token_updater=token_updater,
)
@app.route("/login")
async def login():
discord = make_oauth_session(host_url=request.host_url, scope=["guilds"])
authorization_url, state = discord.authorization_url(AUTHORIZATION_BASE_URL)
session["oauth2_state"] = state
return redirect(authorization_url)
@app.route("/callback")
async def callback():
request_values = await request.values
if request_values.get("error"):
return request_values["error"]
discord = make_oauth_session(
host_url=request.host_url, state=session.get("oauth2_state")
)
token = discord.fetch_token(
TOKEN_URL,
client_secret=OAUTH2_CLIENT_SECRET,
authorization_response=request.url,
)
session["oauth2_token"] = token
print(token)
return ""
@app.route("/<guild_id>.ics")
async def index(guild_id):
guild = get_guild_by_id(guild_id)
if guild is None:
return redirect(url_for(".login"))
calendar = Calendar()
for scheduled_event in guild.scheduled_events:
event = Event()
event.name = scheduled_event.name
event.begin = scheduled_event.scheduled_start_time
event.end = (
scheduled_event.scheduled_end_time
or scheduled_event.scheduled_start_time + timedelta(hours=2)
)
event.uid = str(scheduled_event.id)
event.description = scheduled_event.description
event.url = f"https://discord.com/events/{guild_id}/{scheduled_event.id}"
event.location = (
scheduled_event.entity_metadata.location
if scheduled_event.entity_metadata
else None
)
alarm = DisplayAlarm()
alarm.trigger = timedelta(hours=1)
event.alarms.append(alarm)
calendar.events.add(event)
return str(calendar)
loop = new_event_loop()
discord_task = loop.create_task(client.start(DISCORD_TOKEN))
discord_task.add_done_callback(lambda f: loop.stop())
quart_task = loop.create_task(app.run_task())
quart_task.add_done_callback(lambda f: loop.stop())
loop.run_forever()