haldis/app/zeus.py
Jan-Pieter Baert 5e29f2a5f7
Fix formatting
2022-04-19 22:04:49 +02:00

83 lines
2.6 KiB
Python

"Script containing everything specific to ZeusWPI"
import typing
from flask import (Blueprint, current_app, flash, redirect, request, session,
url_for)
from flask_login import login_user
from flask_oauthlib.client import OAuth, OAuthException
from models import User, db
from werkzeug.wrappers import Response
oauth_bp = Blueprint("oauth_bp", __name__)
def zeus_login():
"Log in using ZeusWPI"
return current_app.zeus.authorize(
callback=url_for("oauth_bp.authorized", _external=True))
@oauth_bp.route("/login/zeus/authorized")
def authorized() -> typing.Any:
# type is 'typing.Union[str, Response]', but this errors due to
# https://github.com/python/mypy/issues/7187
"Check authorized status"
resp = current_app.zeus.authorized_response()
if resp is None:
# pylint: disable=C0301
return f"Access denied: reason={request.args['error']} error={request.args['error_description']}"
if isinstance(resp, OAuthException):
return f"Access denied: {resp.message}<br>{resp.data}"
session["zeus_token"] = (resp["access_token"], "")
me = current_app.zeus.get("current_user/")
username = me.data.get("username", "").lower()
user = User.query.filter_by(username=username).first()
# pylint: disable=R1705
if username and user:
return login_and_redirect_user(user)
elif username:
user = create_user(username)
return login_and_redirect_user(user)
flash("You're not allowed to enter, please contact a system administrator")
return redirect(url_for("general_bp.home"))
def init_oauth(app):
"Initialize the OAuth for ZeusWPI"
oauth = OAuth(app)
zeus = oauth.remote_app(
"zeus",
consumer_key=app.config["ZEUS_KEY"],
consumer_secret=app.config["ZEUS_SECRET"],
request_token_params={},
base_url="https://adams.ugent.be/oauth/api/",
access_token_method="POST",
access_token_url="https://adams.ugent.be/oauth/oauth2/token/",
authorize_url="https://adams.ugent.be/oauth/oauth2/authorize/",
)
# pylint: disable=W0612
@zeus.tokengetter
def get_zeus_oauth_token():
return session.get("zeus_token")
return zeus
def login_and_redirect_user(user) -> Response:
"Log in the user and then redirect them"
login_user(user)
return redirect(url_for("general_bp.home"))
def create_user(username) -> User:
"Create a temporary user if it is needed"
user = User()
user.configure(username, False, 1)
db.session.add(user)
db.session.commit()
return user