Mawoka
262 lines
9.6 KiB
Python
262 lines
9.6 KiB
Python
import os
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from email_validator import validate_email, EmailNotValidError
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from fastapi import APIRouter, Response, HTTPException, Request, Depends, status
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from datetime import timedelta, datetime
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from fastapi.background import BackgroundTasks
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from fastapi.responses import JSONResponse, RedirectResponse
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from fastapi.security import OAuth2PasswordRequestForm
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from classquiz.auth import (
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get_password_hash,
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verify_password,
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authenticate_user,
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create_access_token,
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get_current_user,
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)
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from classquiz.cache import clear_cache_for_account
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from classquiz.config import redis, settings
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import uuid
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import bleach
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from pydantic import BaseModel
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from classquiz.db.models import User, UserSession, UpdatePassword, Token
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from classquiz.emails import send_register_email, send_forgotten_password_email
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settings = settings()
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router = APIRouter()
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route_user = User.get_pydantic(
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exclude={
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"id": ...,
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"verified": ...,
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"verify_key": ...,
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"created_at": ...,
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"usersessions": ...,
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}
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)
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async def _sign_out_everywhere(user: User) -> None:
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await UserSession.objects.filter(user=user).delete()
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await clear_cache_for_account(user)
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@router.post(
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"/create",
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response_model=User,
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response_model_include={"id": ..., "verified": ..., "email": ...},
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)
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async def create_user(user: route_user, background_task: BackgroundTasks) -> User | JSONResponse:
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user = User(**user.dict(), id=uuid.uuid4())
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try:
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validate_email(user.email)
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except EmailNotValidError as e:
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raise HTTPException(status_code=400, detail=str(e))
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user.verify_key = str(os.urandom(16).hex())
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res = await User.objects.filter((User.email == user.email) | (User.username == user.username)).all()
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if len(res) != 0:
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raise HTTPException(status_code=409, detail="User already exists")
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user.password = get_password_hash(user.password)
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user.username = bleach.clean(user.username, tags=[], strip=True)
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if len(user.username) == 32:
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return JSONResponse({"details": "Username mustn't be 32 characters long"}, 400)
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await user.save()
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background_task.add_task(send_register_email, email=user.email)
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await redis.delete("global_user_count")
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return user
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@router.post("/token/cookie", response_model=Token)
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async def login_for_cookie_access_token(
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request: Request,
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response: Response,
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form_data: OAuth2PasswordRequestForm = Depends(),
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):
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user = await authenticate_user(form_data.username, form_data.password)
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if not user:
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="Incorrect username or password",
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)
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remote_ip = None
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if request.headers.get("X-Forwarded-For") is None:
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if ", " in request.client.host:
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remote_ip = request.client.host.split(", ")[0]
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else:
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remote_ip = request.headers.get("X-Forwarded-For")
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session_key = os.urandom(32).hex()
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user_session = UserSession(
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user=user,
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session_key=session_key,
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ip_address=remote_ip,
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user_agent=request.headers.get("User-Agent"),
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id=uuid.uuid4(),
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)
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await user_session.save()
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# await user_session.save()
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access_token_expires = timedelta(minutes=settings.access_token_expire_minutes)
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access_token = create_access_token(data={"sub": user.email}, expires_delta=access_token_expires)
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await redis.set(access_token, user.email, ex=settings.access_token_expire_minutes * 60)
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response.set_cookie(
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key="access_token",
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value=f"Bearer {access_token}",
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httponly=True,
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samesite="strict",
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max_age=settings.access_token_expire_minutes * 60,
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)
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response.set_cookie(key="expiry", value="", max_age=settings.access_token_expire_minutes * 60)
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response.set_cookie(key="rememberme", value="")
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response.set_cookie(key="rememberme_token", value=session_key, httponly=True, samesite="strict")
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return {"access_token": access_token, "token_type": "bearer"}
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@router.get("/token/rememberme")
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async def rememberme_token(request: Request, response: Response):
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rememberme_cookie = request.cookies.get("rememberme_token")
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if rememberme_cookie is None:
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raise HTTPException(status_code=400, detail="No rememberme cookie")
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user_session: UserSession | None = (
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await UserSession.objects.filter(session_key=rememberme_cookie).select_related(UserSession.user).get_or_none()
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)
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if (user_session is None) or (user_session.user is None):
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raise HTTPException(status_code=401, detail="No user session")
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access_token_expires = timedelta(minutes=settings.access_token_expire_minutes * 60)
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access_token = create_access_token(data={"sub": user_session.user.email}, expires_delta=access_token_expires)
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response.set_cookie(
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key="access_token",
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value=f"Bearer {access_token}",
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httponly=True,
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samesite="strict",
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max_age=settings.access_token_expire_minutes * 60,
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)
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response.set_cookie(key="expiry", value="", max_age=settings.access_token_expire_minutes * 60)
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response.status_code = 200
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await user_session.update(last_seen=datetime.now())
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return response
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@router.get("/logout")
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async def logout(request: Request, response: Response):
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remember_token = request.cookies.get("rememberme_token")
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if remember_token is not None:
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await UserSession.objects.filter(session_key=remember_token).delete()
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response.delete_cookie("access_token")
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response.delete_cookie("expiry")
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response.delete_cookie("rememberme")
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response.delete_cookie("rememberme_token")
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response.status_code = 302
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response.headers["Location"] = "/"
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return response
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@router.get("/check")
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async def check_token(user: User = Depends(get_current_user)):
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return {"email": user.email}
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@router.get("/verify/{verify_key}")
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async def verify_user(verify_key: str):
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user = await User.objects.filter(verify_key=verify_key).get_or_none()
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if user is None:
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raise HTTPException(status_code=404, detail="User not found")
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user.verified = True
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user.verify_key = None
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await user.update()
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return RedirectResponse(url="/account/login?verified=true")
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@router.put("/password/update")
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async def change_password(
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password_data: UpdatePassword,
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response: Response,
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user: User = Depends(get_current_user),
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):
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if not verify_password(password_data.old_password, user.password):
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raise HTTPException(status_code=400, detail="Incorrect password")
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user.password = get_password_hash(password_data.new_password)
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await user.update()
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await clear_cache_for_account(user)
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await UserSession.objects.filter(user=user).delete()
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response.delete_cookie("access_token")
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response.delete_cookie("expiry")
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response.delete_cookie("rememberme")
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response.delete_cookie("rememberme_token")
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return {"message": "Password updated successfully"}
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@router.delete("/signout-everywhere")
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async def signout_everywhere(response: Response, user: User = Depends(get_current_user)):
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await _sign_out_everywhere(user)
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response.delete_cookie("access_token")
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response.delete_cookie("expiry")
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response.delete_cookie("rememberme")
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response.delete_cookie("rememberme_token")
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return {"message": "Signout everywhere"}
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@router.get("/me", response_model_exclude={"password", "verify_key", "usersessions"})
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async def get_me(user: User = Depends(get_current_user)):
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return user.dict(exclude={"password", "verify_key", "usersessions"})
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class ForgotPassword(BaseModel):
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email: str
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@router.post("/forgot-password")
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async def forgotten_password(forgot_password: ForgotPassword):
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user = await User.objects.filter(email=forgot_password.email, verified=True).get_or_none()
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if user is None:
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raise HTTPException(status_code=404, detail="User not found")
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await send_forgotten_password_email(user.email)
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return {"message": "Password reset email sent"}
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class ResetPassword(BaseModel):
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password: str
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token: str
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@router.post("/reset-password")
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async def reset_password_with_token(reset_password: ResetPassword, response: Response):
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redis_res = await redis.get(f"reset_passwd:{reset_password.token}")
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if redis_res is None:
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raise HTTPException(status_code=400, detail="Invalid token")
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user = await User.objects.filter(id=uuid.UUID(redis_res)).get_or_none()
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if user is None:
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raise HTTPException(status_code=400, detail="Invalid token")
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user.password = get_password_hash(reset_password.password)
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await user.update()
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await _sign_out_everywhere(user)
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response.delete_cookie("access_token")
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response.delete_cookie("expiry")
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response.delete_cookie("rememberme")
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response.delete_cookie("rememberme_token")
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return {"message": "Password updated successfully"}
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@router.get("/sessions/list", response_model=list[UserSession], response_model_exclude={"user", "session_key"})
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async def list_sessions(user: User = Depends(get_current_user)):
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sessions = await UserSession.objects.filter(user=user).all()
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return [session.dict() for session in sessions]
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@router.delete("/sessions/{session_id}")
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async def delete_session(session_id: str, user: User = Depends(get_current_user)):
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try:
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session_id = uuid.UUID(session_id)
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except ValueError:
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raise HTTPException(status_code=400, detail="Invalid session id")
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await UserSession.objects.filter(user=user, id=session_id).delete()
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return {"message": "Session deleted"}
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@router.get("/session", response_model=UserSession, response_model_exclude={"user", "session_key"})
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async def get_session(user: User = Depends(get_current_user)):
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session = await UserSession.objects.filter(user=user).first()
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return session
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