forked from cardosofelipe/pragma-stack
Felipe Cardoso
98b455fdc3
- introduce custom repository exception hierarchy (DuplicateEntryError, IntegrityConstraintError, InvalidInputError) replacing raw ValueError - eliminate all direct repository imports and raw SQL from route layer - add UserService, SessionService, OrganizationService to service layer - add get_stats/get_org_distribution service methods replacing admin inline SQL - fix timing side-channel in authenticate_user via dummy bcrypt check - replace SHA-256 client secret fallback with explicit InvalidClientError - replace assert with InvalidGrantError in authorization code exchange - replace N+1 token revocation loops with bulk UPDATE statements - rename oauth account token fields (drop misleading 'encrypted' suffix) - add Alembic migration 0003 for token field column rename - add 45 new service/repository tests; 975 passing, 94% coverage
152 lines
4.2 KiB
Python
Executable File
152 lines
4.2 KiB
Python
Executable File
from fastapi import Depends, Header, HTTPException, status
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from fastapi.security import OAuth2PasswordBearer
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from fastapi.security.utils import get_authorization_scheme_param
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from sqlalchemy.ext.asyncio import AsyncSession
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from app.core.auth import TokenExpiredError, TokenInvalidError, get_token_data
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from app.core.database import get_db
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from app.models.user import User
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from app.repositories.user import user_repo
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# OAuth2 configuration
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/v1/auth/login")
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async def get_current_user(
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db: AsyncSession = Depends(get_db), token: str = Depends(oauth2_scheme)
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) -> User:
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"""
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Get the current authenticated user.
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Args:
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db: Database session
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token: JWT token from request
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Returns:
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User: The authenticated user
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Raises:
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HTTPException: If authentication fails
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"""
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try:
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# Decode token and get user ID
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token_data = get_token_data(token)
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# Get user from database via repository
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user = await user_repo.get(db, id=str(token_data.user_id))
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if not user:
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raise HTTPException(
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status_code=status.HTTP_404_NOT_FOUND, detail="User not found"
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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, detail="Inactive user"
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)
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return user
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except TokenExpiredError:
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="Token expired",
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headers={"WWW-Authenticate": "Bearer"},
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)
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except TokenInvalidError:
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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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def get_current_active_user(current_user: User = Depends(get_current_user)) -> User:
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"""
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Check if the current user is active.
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Args:
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current_user: The current authenticated user
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Returns:
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User: The authenticated and 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, detail="Inactive user"
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)
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return current_user
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def get_current_superuser(current_user: User = Depends(get_current_user)) -> User:
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"""
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Check if the current user is a superuser.
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Args:
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current_user: The current authenticated user
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Returns:
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User: The authenticated superuser
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Raises:
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HTTPException: If user is not a superuser
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"""
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if not current_user.is_superuser:
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raise HTTPException(
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status_code=status.HTTP_403_FORBIDDEN, detail="Not enough permissions"
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)
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return current_user
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async def get_optional_token(authorization: str = Header(None)) -> str | None:
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"""
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Get the token from the Authorization header without requiring it.
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This is a custom dependency that doesn't raise an exception when no token is provided,
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unlike the standard OAuth2PasswordBearer.
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Args:
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authorization: Authorization header value
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Returns:
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The token string if valid Bearer token is provided, None otherwise
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"""
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if not authorization:
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return None
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scheme, token = get_authorization_scheme_param(authorization)
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if scheme.lower() != "bearer":
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return None
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return token
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async def get_optional_current_user(
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db: AsyncSession = Depends(get_db), token: str | None = Depends(get_optional_token)
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) -> User | None:
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"""
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Get the current user if authenticated, otherwise return None.
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Useful for endpoints that work with both authenticated and unauthenticated users.
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Args:
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db: Database session
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token: JWT token from request
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Returns:
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User or None: The authenticated user or None
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"""
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if not token:
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return None
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try:
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token_data = get_token_data(token)
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user = await user_repo.get(db, id=str(token_data.user_id))
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if not user or not user.is_active:
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return None
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return user
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except (TokenExpiredError, TokenInvalidError):
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return None
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