67 lines
1.6 KiB
Python
67 lines
1.6 KiB
Python
from sqlalchemy.ext.asyncio import AsyncSession
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from fastapi import Depends
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from fastapi.security import OAuth2PasswordBearer
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from typing import Callable
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from datetime import datetime
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from fooder.db import get_db_session
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from fooder.domain import User
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from fooder.repository import Repository
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from fooder.utils.datetime import utc_now
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from fooder.exc import Unauthorized, NotFound
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from fooder.utils.jwt import AccessToken
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class Context:
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"""
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Main API context, aggregating dependencies
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"""
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def __init__(
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self,
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repo: Repository,
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clock: Callable[[], datetime] = utc_now,
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) -> None:
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self.repo = repo
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self.clock = clock
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self._user: User | None = None
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def set_user(self, user: User) -> None:
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self._user = user
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@property
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def user(self) -> User:
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if self._user is None:
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raise Unauthorized()
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return self._user
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class ContextDependency:
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"""
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Context dependency
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"""
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def __call__(
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self,
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session: AsyncSession = Depends(get_db_session),
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):
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return Context(repo=Repository(session))
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class AuthContextDependency:
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"""
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Context dependency for authorized endpoints
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"""
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async def __call__(
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self,
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token: str = Depends(OAuth2PasswordBearer(tokenUrl="/token")),
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session: AsyncSession = Depends(get_db_session),
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) -> Context:
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ctx = Context(repo=Repository(session))
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user_id = AccessToken.decode(token).sub
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try:
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user = await ctx.repo.user.get_by_id(user_id)
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except NotFound:
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raise Unauthorized()
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ctx.set_user(user)
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return ctx
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