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from passlib.context import CryptContext |
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from fastapi.security import OAuth2PasswordBearer |
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from fastapi import Depends, HTTPException, status |
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from datetime import timedelta, datetime |
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from jose import JWTError, jwt |
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from core.config import get_settings |
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from sqlalchemy.orm import Session |
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from core.database import get_db |
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settings = get_settings() |
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pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto") |
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl="auth/token/") |
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def get_password_hash(password: str) -> str: |
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return pwd_context.hash(password) |
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def verify_password(plain_password: str, hashed_password: str) -> bool: |
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return pwd_context.verify(plain_password, hashed_password) |
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async def create_access_token(data: dict, expiry: timedelta) -> str: |
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payload = data.copy() |
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expire = datetime.utcnow() + expiry |
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payload.update({"exp": expire}) |
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return jwt.encode(payload, settings.JWT_SECRET_KEY, algorithm=settings.JWT_ALGORITHM) |
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async def create_refresh_token(data: dict) -> str: |
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payload = data.copy() |
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return jwt.encode(payload, settings.JWT_SECRET_KEY, algorithm=settings.JWT_ALGORITHM) |
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def get_token_payload(token: str) -> dict: |
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try: |
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return jwt.decode(token, settings.JWT_SECRET_KEY, algorithms=[settings.JWT_ALGORITHM]) |
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except JWTError: |
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return None |
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async def get_current_user(token: str = Depends(oauth2_scheme), db: Session = Depends(get_db)): |
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from users.services import get_user_by_email |
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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 = get_token_payload(token) |
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if payload is None: |
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raise credentials_exception |
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email: str = payload.get("sub") |
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if email is None: |
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raise credentials_exception |
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except JWTError: |
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raise credentials_exception |
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user = get_user_by_email(email, db=db) |
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if user is None: |
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raise credentials_exception |
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return user |
