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spakky-policy

spakky-policy는 YAML, TOML, JSON policy document를 typed canonical model로 로드합니다. spakky-auth의 RBAC, PBAC, ABAC-style 인가 규칙을 provider contribution으로 평가합니다.

설치

pip install spakky-auth spakky-policy spakky-fastapi

사용법

SPAKKY_POLICY_DOCUMENT_PATH가 YAML, TOML, JSON 문서를 가리키면 플러그인이 해당 문서를 DI-managed PolicyDocument로 로드합니다. 경로를 설정하지 않으면 비어 있는 policy document를 등록해 인가 요청을 안전하게 거부합니다.

from fastapi import FastAPI
from spakky.auth import protected, require_policy
from spakky.core.application.application import SpakkyApplication
from spakky.core.application.application_context import ApplicationContext
from spakky.plugins.fastapi.routes import get
from spakky.plugins.fastapi.stereotypes.api_controller import ApiController
import spakky.auth
import spakky.plugins.fastapi
import spakky.plugins.policy


@ApiController("/articles")
class ArticleController:
    @get("/{article_id}")
    @require_policy(resource="article:1", action="article:read")
    @protected
    def read(self, article_id: str) -> dict[str, str]:
        return {"id": article_id}


app = (
    SpakkyApplication(ApplicationContext())
    .load_plugins(
        include={
            spakky.auth.PLUGIN_NAME,
            spakky.plugins.fastapi.PLUGIN_NAME,
            spakky.plugins.policy.PLUGIN_NAME,
        }
    )
    .add(ArticleController)
    .start()
)
api = app.container.get(FastAPI)

Policy 의미

  • 명시적 deny statement는 matching allow statement보다 우선합니다.
  • matching allow statement가 없으면 default deny evidence를 반환합니다.
  • condition은 all, any, not composition과 equals, not_equals, in, contains, exists atomic operator를 지원합니다.
  • resource, action, tenant ref는 decorator metadata, AuthContext, resolver output, 또는 provider-neutral AuthorizationRequest에서 온 canonical string입니다.
  • named policy가 OR/ANY 사용자 표면입니다. MCP/tool authorization, generic policy API, policy UI, authorized data filtering은 이 패키지 범위 밖입니다.

Policy 문서 구조

정책 문서는 YAML, TOML, JSON을 지원하며 다음 top-level collection을 typed canonical model로 변환합니다.

필드 의미
version policy document schema version 문자열
metadata name, optional description, labels
subjects subject ref와 역할, scope, permission, claim, tenant binding
resources resource ref와 optional tenant
actions action ref
permissions resource/action 묶음을 가진 named permission
roles permission 묶음을 가진 named role
scopes permission 묶음을 가진 named scope
policies statement 목록을 가진 named policy
conditions 재사용 가능한 atomic/composite condition

최소 YAML 예:

version: "1"
metadata:
  name: article-policy
subjects:
  - ref: user:alice
    roles: [role:editor]
resources:
  - ref: article:1
actions:
  - ref: article:read
permissions:
  - ref: permission:article-read
    resources: [article:1]
    actions: [article:read]
roles:
  - ref: role:editor
    permissions: [permission:article-read]
policies:
  - ref: policy:read-article
    statements:
      - ref: allow-editor
        effect: allow
        roles: [role:editor]
        resources: [article:1]
        actions: [article:read]

플러그인 등록

Base plugin entry point는 SpakkyPolicyConfig, spakky_policy_document, SpakkyPolicyAuthProvider를 등록하고 IAuthorizationPolicyEvaluator, IPermissionChecker, IRoleChecker, IScopeChecker를 provider에 binding합니다. Auth feature contribution entry point는 spakky.contributions.spakky.auth group에 policy/permission/role/scope capability metadata를 등록합니다.

개발 검증

패키지 단위 검증은 해당 패키지 디렉토리에서 실행합니다.

uv run ruff format .
uv run ruff check .
uv run pyrefly check
uv run pytest

pytest는 각 패키지 pyproject.toml의 coverage 설정을 사용합니다.

라이선스

MIT

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