import logging
import os
import uuid
from typing import Optional
from fastapi import Depends, Request
from fastapi_users import BaseUserManager, FastAPIUsers, UUIDIDMixin, models
from fastapi_users.authentication import (
AuthenticationBackend,
BearerTransport,
CookieTransport,
JWTStrategy,
)
from fastapi_users.db import SQLAlchemyUserDatabase
from httpx_oauth.clients.openid import OpenID
from fastapi.responses import RedirectResponse, Response
from starlette import status
import media_manager.notification.utils
from media_manager.auth.config import AuthConfig, OpenIdConfig
from media_manager.auth.db import User, get_user_db
from media_manager.auth.schemas import UserUpdate
from media_manager.config import BasicConfig
log = logging.getLogger(__name__)
config = AuthConfig()
SECRET = config.token_secret
LIFETIME = config.session_lifetime
if (
os.getenv("OPENID_ENABLED") is not None
and os.getenv("OPENID_ENABLED").upper() == "TRUE"
):
openid_config = OpenIdConfig()
openid_client = OpenID(
base_scopes=["openid", "email", "profile"],
client_id=openid_config.client_id,
client_secret=openid_config.client_secret,
name=openid_config.name,
openid_configuration_endpoint=openid_config.configuration_endpoint,
)
openid_client.base_scopes = ["openid", "email", "profile"]
else:
openid_client = None
class UserManager(UUIDIDMixin, BaseUserManager[User, uuid.UUID]):
reset_password_token_secret = SECRET
verification_token_secret = SECRET
async def on_after_register(self, user: User, request: Optional[Request] = None):
log.info(f"User {user.id} has registered.")
if user.email in config.admin_email:
updated_user = UserUpdate(is_superuser=True, is_verified=True)
await self.update(user=user, user_update=updated_user)
async def on_after_forgot_password(
self, user: User, token: str, request: Optional[Request] = None
):
link = f"{BasicConfig().FRONTEND_URL}login/reset-password?token={token}"
log.info(f"User {user.id} has forgot their password. Reset Link: {link}")
if not config.email_password_resets:
log.info("Email password resets are disabled, not sending email.")
return
subject = "MediaManager - Password Reset Request"
html = f"""\
Hi {user.email},
if you forgot your password, reset you password here.
If you did not request a password reset, you can ignore this email.
If the link does not work, copy the following link into your browser: {link}
"""
media_manager.notification.utils.send_email(
subject=subject, html=html, addressee=user.email
)
log.info(f"Sent password reset email to {user.email}")
async def on_after_reset_password(
self, user: User, request: Optional[Request] = None
):
log.info(f"User {user.id} has reset their password.")
async def on_after_request_verify(
self, user: User, token: str, request: Optional[Request] = None
):
log.info(
f"Verification requested for user {user.id}. Verification token: {token}"
)
async def on_after_verify(self, user: User, request: Optional[Request] = None):
log.info(f"User {user.id} has been verified")
async def get_user_manager(user_db: SQLAlchemyUserDatabase = Depends(get_user_db)):
yield UserManager(user_db)
def get_jwt_strategy() -> JWTStrategy[models.UP, models.ID]:
return JWTStrategy(secret=SECRET, lifetime_seconds=LIFETIME)
# needed because the default CookieTransport does not redirect after login,
# thus the user would be stuck on the OAuth Providers "redirecting" page
class RedirectingCookieTransport(CookieTransport):
async def get_login_response(self, token: str) -> Response:
response = RedirectResponse(
str(BasicConfig().FRONTEND_URL) + "dashboard",
status_code=status.HTTP_302_FOUND,
)
return self._set_login_cookie(response, token)
bearer_transport = BearerTransport(tokenUrl="auth/jwt/login")
cookie_transport = CookieTransport(cookie_max_age=LIFETIME)
openid_cookie_transport = RedirectingCookieTransport(cookie_max_age=LIFETIME)
bearer_auth_backend = AuthenticationBackend(
name="jwt",
transport=bearer_transport,
get_strategy=get_jwt_strategy,
)
cookie_auth_backend = AuthenticationBackend(
name="cookie",
transport=cookie_transport,
get_strategy=get_jwt_strategy,
)
openid_cookie_auth_backend = AuthenticationBackend(
name="cookie",
transport=openid_cookie_transport,
get_strategy=get_jwt_strategy,
)
fastapi_users = FastAPIUsers[User, uuid.UUID](
get_user_manager, [bearer_auth_backend, cookie_auth_backend]
)
current_active_user = fastapi_users.current_user(active=True, verified=True)
current_superuser = fastapi_users.current_user(
active=True, verified=True, superuser=True
)