103 lines
2.7 KiB
Python
103 lines
2.7 KiB
Python
"""Dependencies for FastAPI routes."""
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from typing import Optional
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from fastapi import Depends, HTTPException, status
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from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
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from sqlalchemy import select
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from sqlalchemy.ext.asyncio import AsyncSession
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from tradingagents.api.database import get_db
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from tradingagents.api.models import User
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from tradingagents.api.services.auth_service import decode_access_token
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# HTTP Bearer token authentication
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security = HTTPBearer()
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async def get_current_user(
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credentials: HTTPAuthorizationCredentials = Depends(security),
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db: AsyncSession = Depends(get_db)
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) -> User:
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"""
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Get current authenticated user from JWT token.
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Args:
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credentials: HTTP Bearer token credentials
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db: Database session
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Returns:
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User: Current authenticated user
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Raises:
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HTTPException: If token is invalid or user not found
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Example:
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@app.get("/protected")
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async def protected_route(user: User = Depends(get_current_user)):
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return {"username": user.username}
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"""
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token = credentials.credentials
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# Decode JWT token
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payload = decode_access_token(token)
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if payload is None:
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raise 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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# Extract username from token
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username: Optional[str] = payload.get("sub")
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if username is None:
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raise 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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# Get user from database
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result = await db.execute(
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select(User).where(User.username == username)
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)
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user = result.scalar_one_or_none()
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if user is None:
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="User not found",
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headers={"WWW-Authenticate": "Bearer"},
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)
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if not user.is_active:
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raise HTTPException(
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status_code=status.HTTP_403_FORBIDDEN,
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detail="Inactive user"
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)
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return user
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async def get_current_active_user(
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current_user: User = Depends(get_current_user)
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) -> User:
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"""
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Get current active user.
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Args:
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current_user: Current user from get_current_user
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Returns:
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User: Current active user
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Raises:
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HTTPException: If user is inactive
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"""
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if not current_user.is_active:
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raise HTTPException(
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status_code=status.HTTP_403_FORBIDDEN,
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detail="Inactive user"
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)
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return current_user
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