Files

144 lines
4.2 KiB
Python

from datetime import datetime, timedelta
from fastapi import APIRouter, Depends, HTTPException, status
from fastapi.security import OAuth2PasswordBearer, OAuth2PasswordRequestForm
from starlette.status import HTTP_401_UNAUTHORIZED
from jose import JWTError, jwt
from app.settings import settings
from pydantic import BaseModel
from typing import List
from users.models import User
ALGORITHM = "HS256"
ACCESS_TOKEN_EXPIRE_MINUTES = 30
oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/users/token")
def create_access_token(data: dict, expires_delta: timedelta | None = None) -> str:
to_encode = data.copy()
if expires_delta:
expire = datetime.utcnow() + expires_delta
else:
expire = datetime.utcnow() + timedelta(minutes=15)
to_encode.update({"exp": expire})
encoded_jwt = jwt.encode(to_encode, settings.SECRET_KEY, algorithm=ALGORITHM)
return encoded_jwt
def verify_access_token(token: str) -> bool:
try:
payload = jwt.decode(token, settings.SECRET_KEY, algorithms=[ALGORITHM])
user_id: str = payload.get("sub", None)
if user_id is None:
return False
except JWTError:
return False
return True
async def get_current_user(token: str = Depends(oauth2_scheme)):
credentials_exception = HTTPException(
status_code=status.HTTP_401_UNAUTHORIZED,
detail="Could not validate credentials",
headers={"WWW-Authenticate": "Bearer"},
)
try:
payload = jwt.decode(token, settings.SECRET_KEY, algorithms=[ALGORITHM])
user_id: str = payload.get("sub", None)
if user_id is None:
raise credentials_exception
except JWTError:
raise credentials_exception
user = await User.get(user_id)
if user is None:
raise credentials_exception
return user
class UserSchema(BaseModel):
username: str
full_name: str
plain_password: str
email: str
class UserSerializer(BaseModel):
id: str
username: str
class Config:
orm_mode = True
class UserPassVerifySchema(BaseModel):
id: str
plain_password: str
class PasswordSerializer(BaseModel):
correct_password: bool
class TokenSchema(BaseModel):
token: str
router = APIRouter(
prefix="/users",
tags=["users"],
)
@router.post("/", response_model=UserSerializer)
async def create_user(user: UserSchema):
print(user)
print(type(user))
user = await User.create(**user.dict())
return user
@router.get("/me", response_model=UserSerializer)
async def read_users_me(current_user: User = Depends(get_current_user)):
return current_user
@router.post("/verify", response_model=PasswordSerializer)
async def verify_user_password(user: UserPassVerifySchema):
us = await User.get(id=user.id)
return PasswordSerializer(correct_password=us.verify_password(user.plain_password))
@router.get("/{id}", response_model=UserSerializer)
async def get_user(id: str):
user = await User.get(id)
return user
@router.get("/", response_model=List[UserSerializer])
async def get_all_users():
users = await User.get_all()
return users
@router.put("/{id}", response_model=UserSerializer)
async def update(id: str, user: UserSchema):
user = await User.update(id, **user.dict())
return user
@router.delete("/{id}", response_model=bool)
async def delete_user(id: str):
return await User.delete(id)
@router.post("/check-login", response_model=bool)
async def check_if_token_still_active(token: TokenSchema):
return verify_access_token(token.token)
@router.post("/token")
async def login_for_access_token(form_data: OAuth2PasswordRequestForm = Depends()):
user = await User.authenticate_user(form_data.username, form_data.password)
if not user:
raise HTTPException(
status_code=HTTP_401_UNAUTHORIZED,
detail="Incorrect username or password",
headers={"WWW-Authenticate": "Bearer"},
)
access_token_expires = timedelta(minutes=ACCESS_TOKEN_EXPIRE_MINUTES)
access_token = create_access_token(
data = {"sub": user.id}, expires_delta=access_token_expires
)
return {"access_token": access_token, "token_type": "bearer"}