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79 lines
2.5 KiB
Python
79 lines
2.5 KiB
Python
from typing import Any, Optional
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import jwt
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from fastapi import HTTPException, status, Request
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from fastapi.security import OAuth2PasswordBearer
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from decnet.web.auth import ALGORITHM, SECRET_KEY
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from decnet.web.db.repository import BaseRepository
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from decnet.web.db.factory import get_repository
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# Shared repository singleton
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_repo: Optional[BaseRepository] = None
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def get_repo() -> BaseRepository:
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"""FastAPI dependency to inject the configured repository."""
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global _repo
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if _repo is None:
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_repo = get_repository()
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return _repo
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repo = get_repo()
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/v1/auth/login")
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async def get_stream_user(request: Request, token: Optional[str] = None) -> str:
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"""Auth dependency for SSE endpoints — accepts Bearer header OR ?token= query param.
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EventSource does not support custom headers, so the query-string fallback is intentional here only.
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"""
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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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auth_header = request.headers.get("Authorization")
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resolved: str | None = (
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auth_header.split(" ", 1)[1]
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if auth_header and auth_header.startswith("Bearer ")
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else token
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)
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if not resolved:
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raise _credentials_exception
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try:
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_payload: dict[str, Any] = jwt.decode(resolved, SECRET_KEY, algorithms=[ALGORITHM])
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_user_uuid: Optional[str] = _payload.get("uuid")
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if _user_uuid is None:
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raise _credentials_exception
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return _user_uuid
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except jwt.PyJWTError:
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raise _credentials_exception
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async def get_current_user(request: Request) -> str:
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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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auth_header = request.headers.get("Authorization")
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token: str | None = (
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auth_header.split(" ", 1)[1]
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if auth_header and auth_header.startswith("Bearer ")
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else None
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)
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if not token:
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raise _credentials_exception
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try:
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_payload: dict[str, Any] = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
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_user_uuid: Optional[str] = _payload.get("uuid")
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if _user_uuid is None:
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raise _credentials_exception
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return _user_uuid
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except jwt.PyJWTError:
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raise _credentials_exception
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