Создание чата

backend/app/core/auth.py

@@ -0,0 +1,57 @@
+from fastapi import Depends, HTTPException, status, WebSocket
+from fastapi.security import OAuth2PasswordBearer
+from jose import JWTError, jwt
+from sqlalchemy.orm import Session
+from typing import Optional
+
+from app.core.config import settings
+from app.database import get_db
+from app.models.user import User
+
+oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token")
+
+def get_current_user(token: str = Depends(oauth2_scheme), db: Session = Depends(get_db)) -> User:
+    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=[settings.algorithm])
+        email: str = payload.get("sub")
+        if email is None:
+            raise credentials_exception
+    except JWTError:
+        raise credentials_exception
+    
+    user = db.query(User).filter(User.email == email).first()
+    if user is None:
+        raise credentials_exception
+    return user
+
+async def get_current_user_ws(websocket: WebSocket, db: Session = Depends(get_db)) -> Optional[User]:
+    try:
+        # Получаем токен из параметров запроса
+        token = websocket.query_params.get("token")
+        if not token:
+            await websocket.close(code=status.WS_1008_POLICY_VIOLATION)
+            return None
+
+        # Проверяем токен
+        payload = jwt.decode(token, settings.secret_key, algorithms=[settings.algorithm])
+        email: str = payload.get("sub")
+        if email is None:
+            await websocket.close(code=status.WS_1008_POLICY_VIOLATION)
+            return None
+
+        # Получаем пользователя
+        user = db.query(User).filter(User.email == email).first()
+        if user is None:
+            await websocket.close(code=status.WS_1008_POLICY_VIOLATION)
+            return None
+
+        return user
+
+    except JWTError:
+        await websocket.close(code=status.WS_1008_POLICY_VIOLATION)
+        return None