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54 lines
1.8 KiB
Python
54 lines
1.8 KiB
Python
from typing import Annotated
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import bcrypt
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from fastapi import Depends, HTTPException, status
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from fastapi.security import OAuth2PasswordRequestForm
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from sqlmodel import select
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from auth import Token, create_access_token, router
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from database import DbSessionDependency
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from database.users import User
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def verify_password(plain_password, hashed_password):
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return bcrypt.checkpw(
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bytes(plain_password, encoding="utf-8"),
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bytes(hashed_password, encoding="utf-8"),
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)
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def get_password_hash(password: str) -> str:
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return bcrypt.hashpw(password.encode("utf-8"), bcrypt.gensalt()).decode("utf-8")
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def authenticate_user(db: DbSessionDependency, email: str, password: str) -> bool | User:
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"""
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:param email: email of the USER
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:param password: PASSWORD of the USER
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:return: if authentication succeeds, returns the USER object with added name and lastname, otherwise or if the USER doesn't exist returns False
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"""
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user: User | None = db.exec(select(User).where(User.email == email)).first()
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if not user:
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return False
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if not verify_password(password, user.hashed_password):
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return False
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return user
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@router.post("/token")
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async def login_for_access_token(
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form_data: Annotated[OAuth2PasswordRequestForm, Depends()],
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db: DbSessionDependency,
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) -> Token:
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user = authenticate_user(db,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 email or PASSWORD",
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headers={"WWW-Authenticate": "Bearer"},
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)
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# id needs to be converted because a UUID object isn't json serializable
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access_token = create_access_token(data={"sub": user.id.__str__()})
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return Token(access_token=access_token, token_type="bearer")
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