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"""Various checkers for OAuth2"""
from functools import wraps
from urllib.parse import urljoin
from authlib.integrations.requests_client import OAuth2Session
from flask import (
flash, request, url_for, redirect, current_app, session as flask_session)
from . import session
from .client import (
authserver_uri, user_logged_in, oauth2_clientid, oauth2_clientsecret)
def require_oauth2(func):
"""Decorator for ensuring user is logged in."""
@wraps(func)
def __token_valid__(*args, **kwargs):
"""Check that the user is logged in and their token is valid."""
config = current_app.config
def __clear_session__(_no_token):
session.clear_session_info()
flask_session.pop("oauth2_token", None)
flask_session.pop("user_details", None)
flash("You need to be logged in.", "alert-warning")
return redirect("/")
def __with_token__(token):
client = OAuth2Session(
oauth2_clientid(), oauth2_clientsecret(), token=token)
resp = client.get(
urljoin(authserver_uri(), "auth/user/"))
user_details = resp.json()
if not user_details.get("error", False):
return func(*args, **kwargs)
return clear_session_info(token)
return session.user_token().either(__clear_session__, __with_token__)
return __token_valid__
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