Files
2021-01-12 11:18:34 +01:00

88 lines
3.1 KiB
Python

from typing import Callable, Optional
import jwt
from fastapi import APIRouter, Body, HTTPException, Request, status
from pydantic import UUID4, EmailStr
from fastapi_users import models
from fastapi_users.db import BaseUserDatabase
from fastapi_users.password import get_password_hash
from fastapi_users.router.common import ErrorCode, run_handler
from fastapi_users.utils import JWT_ALGORITHM, generate_jwt
RESET_PASSWORD_TOKEN_AUDIENCE = "fastapi-users:reset"
def get_reset_password_router(
user_db: BaseUserDatabase[models.BaseUserDB],
reset_password_token_secret: str,
reset_password_token_lifetime_seconds: int = 3600,
after_forgot_password: Optional[Callable[[models.UD, str, Request], None]] = None,
after_reset_password: Optional[Callable[[models.UD, Request], None]] = None,
) -> APIRouter:
"""Generate a router with the reset password routes."""
router = APIRouter()
@router.post("/forgot-password", status_code=status.HTTP_202_ACCEPTED)
async def forgot_password(
request: Request, email: EmailStr = Body(..., embed=True)
):
user = await user_db.get_by_email(email)
if user is not None and user.is_active:
token_data = {"user_id": str(user.id), "aud": RESET_PASSWORD_TOKEN_AUDIENCE}
token = generate_jwt(
token_data,
reset_password_token_lifetime_seconds,
reset_password_token_secret,
)
if after_forgot_password:
await run_handler(after_forgot_password, user, token, request)
return None
@router.post("/reset-password")
async def reset_password(
request: Request, token: str = Body(...), password: str = Body(...)
):
try:
data = jwt.decode(
token,
reset_password_token_secret,
audience=RESET_PASSWORD_TOKEN_AUDIENCE,
algorithms=[JWT_ALGORITHM],
)
user_id = data.get("user_id")
if user_id is None:
raise HTTPException(
status_code=status.HTTP_400_BAD_REQUEST,
detail=ErrorCode.RESET_PASSWORD_BAD_TOKEN,
)
try:
user_uiid = UUID4(user_id)
except ValueError:
raise HTTPException(
status_code=status.HTTP_400_BAD_REQUEST,
detail=ErrorCode.RESET_PASSWORD_BAD_TOKEN,
)
user = await user_db.get(user_uiid)
if user is None or not user.is_active:
raise HTTPException(
status_code=status.HTTP_400_BAD_REQUEST,
detail=ErrorCode.RESET_PASSWORD_BAD_TOKEN,
)
user.hashed_password = get_password_hash(password)
await user_db.update(user)
if after_reset_password:
await run_handler(after_reset_password, user, request)
except jwt.PyJWTError:
raise HTTPException(
status_code=status.HTTP_400_BAD_REQUEST,
detail=ErrorCode.RESET_PASSWORD_BAD_TOKEN,
)
return router