107 lines
3.4 KiB
Python
107 lines
3.4 KiB
Python
from datetime import timedelta
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from fastapi import APIRouter, Depends, HTTPException, status
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from fastapi.security import OAuth2PasswordBearer, OAuth2PasswordRequestForm
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from jose import JWTError, jwt
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from sqlalchemy.orm import Session
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from app.database import get_db
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from app.schemas.user import User, UserCreate, Token, TokenData
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from app.utils import (
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ACCESS_TOKEN_EXPIRE_MINUTES,
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ALGORITHM,
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SECRET_KEY,
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create_access_token,
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create_user,
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get_user,
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get_user_by_email,
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get_user_by_username,
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verify_password,
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)
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router = APIRouter(
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prefix="/users",
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tags=["users"],
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)
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl="users/token")
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async def get_current_user(
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token: str = Depends(oauth2_scheme), db: Session = Depends(get_db)
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):
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"""Get the current user from the JWT token."""
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credentials_exception = HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="Could not validate credentials",
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headers={"WWW-Authenticate": "Bearer"},
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)
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try:
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payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
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username: str = payload.get("sub")
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if username is None:
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raise credentials_exception
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token_data = TokenData(username=username)
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except JWTError:
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raise credentials_exception
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user = get_user_by_username(db, username=token_data.username)
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if user is None:
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raise credentials_exception
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return user
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@router.post("/", response_model=User, status_code=status.HTTP_201_CREATED)
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async def register_user(user: UserCreate, db: Session = Depends(get_db)):
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"""Register a new user."""
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# Check if email already exists
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db_user = get_user_by_email(db, email=user.email)
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if db_user:
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST, detail="Email already registered"
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)
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# Check if username already exists
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db_user = get_user_by_username(db, username=user.username)
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if db_user:
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST, detail="Username already taken"
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)
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# Create user
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return create_user(db, user.email, user.username, user.password)
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@router.post("/token", response_model=Token)
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async def login_for_access_token(
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form_data: OAuth2PasswordRequestForm = Depends(), db: Session = Depends(get_db)
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):
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"""Get an access token from username and password."""
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user = get_user_by_username(db, username=form_data.username)
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if not user or not verify_password(form_data.password, user.hashed_password):
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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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headers={"WWW-Authenticate": "Bearer"},
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)
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access_token_expires = timedelta(minutes=ACCESS_TOKEN_EXPIRE_MINUTES)
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access_token = create_access_token(
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data={"sub": user.username}, expires_delta=access_token_expires
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)
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return {"access_token": access_token, "token_type": "bearer"}
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@router.get("/me", response_model=User)
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async def read_users_me(current_user: User = Depends(get_current_user)):
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"""Get the current authenticated user."""
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return current_user
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@router.get("/{user_id}", response_model=User)
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async def read_user(user_id: int, db: Session = Depends(get_db)):
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"""Get a user by ID."""
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db_user = get_user(db, user_id=user_id)
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if db_user is None:
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raise HTTPException(status_code=404, detail="User not found")
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return db_user
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