C-4: MCP endpoint requires verified bearer token. Unauthenticated
requests rejected. _extract_principal() replaced by verified
AuthResult from middleware.
C-8: All delegation endpoints require verified bearer token.
X-Delegator-DID header removed — identity from token only.
delegator_ac_id validated to belong to authenticated principal.
Only delegators can revoke. Only delegator/delegate can view.
H-6: SQLite file permissions restricted to 0o600 (owner-only).
Umask set before creation. WAL/SHM files also restricted.
H-7: Delegation depth tracked and enforced against max_delegation_depth.
Sub-delegations increment depth. Exceeded depth → 403.
Shared TokenAuthenticator auto-detects identity driver from JWT
issuer claim (Keycloak or Entra). verify_bearer FastAPI dependency
for all protected endpoints. Health endpoint remains public.
ALL 10 critical findings CLOSED. ALL 10 high findings CLOSED.
Signed-off-by: Tyler King <tking@guildhouse.dev>
59 lines
2.7 KiB
Python
59 lines
2.7 KiB
Python
"""fastapi-gsap: Lightweight GSAP broker — GCAP-SPEC-SHELLBOUND-BROKER-0001.
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Also hosts the delegation lifecycle module
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(GCAP-SPEC-LLM-PRINCIPAL-BROKER-0001) absorbed from the standalone
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llm-principal-broker service. The delegation router is mounted at
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``/delegations`` and the storage layer reuses GSAP's existing async DB
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engine — no separate process, no HTTP self-call.
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"""
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import asyncio
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import structlog
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from contextlib import asynccontextmanager
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from fastapi import FastAPI
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from fastapi.middleware.cors import CORSMiddleware
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from gsap_broker.settings import settings
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from gsap_broker.db import init_db
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from gsap_broker.routers import authorize, complete, session, elevate, health, drivers, connectors, functions
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from gsap_broker import mcp
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from gsap_broker.delegations.router import router as delegations_router, manager as delegation_manager
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from gsap_broker.delegations.cleanup import cleanup_loop as delegation_cleanup_loop
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# Import storage so SQLModel.metadata picks up the delegations table at init_db().
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from gsap_broker.delegations import storage as _delegations_storage # noqa: F401
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logger = structlog.get_logger()
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@asynccontextmanager
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async def lifespan(app: FastAPI):
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await init_db()
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# Fix C-4/C-8: initialize shared bearer auth middleware
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from gsap_broker.auth.middleware import init_authenticator
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init_authenticator()
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cleanup_task = asyncio.create_task(delegation_cleanup_loop(delegation_manager))
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logger.info(
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"fastapi-gsap started",
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broker_did=settings.broker_did,
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delegations_router="/delegations",
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)
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try:
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yield
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finally:
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cleanup_task.cancel()
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try:
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await cleanup_task
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except asyncio.CancelledError:
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pass
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app = FastAPI(title="fastapi-gsap", description="GSAP broker PoC — GCAP-SPEC-SHELLBOUND-BROKER-0001",
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version="0.1.0", lifespan=lifespan)
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app.add_middleware(CORSMiddleware, allow_origins=settings.cors_origins, allow_credentials=True,
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allow_methods=["*"], allow_headers=["*"])
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app.include_router(authorize.router, prefix="/governance", tags=["AC"])
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app.include_router(complete.router, prefix="/governance", tags=["CR"])
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app.include_router(session.router, prefix="/governance", tags=["Session"])
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app.include_router(elevate.router, prefix="/governance", tags=["Elevation"])
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app.include_router(drivers.router, prefix="/governance", tags=["Drivers"])
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app.include_router(connectors.router, prefix="/connectors", tags=["Connectors"])
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app.include_router(functions.router, prefix="/functions", tags=["Functions"])
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app.include_router(health.router, tags=["Health"])
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app.include_router(mcp.router, tags=["MCP"])
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app.include_router(delegations_router)
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