backend

backend/dependencies.py

@@ -0,0 +1,35 @@
+from fastapi import Depends, HTTPException, status
+from fastapi.security import OAuth2PasswordBearer
+from jose import JWTError, jwt
+from sqlalchemy.orm import Session
+
+from core.config import settings
+from core.database import get_db
+from crud import user as crud_user
+from schemas import user as schemas_user # Pour la validation du modèle de l'utilisateur
+
+oauth2_scheme = OAuth2PasswordBearer(tokenUrl="auth/login") # URL où le client peut obtenir un token
+
+async def get_current_user(
+    token: str = Depends(oauth2_scheme), 
+    db: Session = Depends(get_db)
+):
+    credentials_exception = HTTPException(
+        status_code=status.HTTP_401_UNAUTHORIZED,
+        detail="Impossible de valider les identifiants",
+        headers={"WWW-Authenticate": "Bearer"},
+    )
+    try:
+        payload = jwt.decode(token, settings.SECRET_KEY, algorithms=[settings.ALGORITHM])
+        username: str = payload.get("sub")
+        if username is None:
+            raise credentials_exception
+    except JWTError:
+        raise credentials_exception
+    
+    user = crud_user.get_user_by_email(db, email=username)
+    if user is None:
+        raise credentials_exception
+    
+    # Retourne l'utilisateur sous forme de Pydantic model pour la réponse
+    return schemas_user.UserResponse.model_validate(user)