Reference implementation of GCAP-SPEC-SHELLBOUND-BROKER-0001
in FastAPI. Designed for ISVs and enterprises implementing
the governed shell authorization protocol.
Architecture:
FastAPI + SQLModel + Pydantic + async SQLite
Single container deployment: Dockerfile included
OpenAPI schema at /docs is the machine-readable GSAP contract
Broker Interface (§5):
POST /governance/authorize/ — Issue AC
GET /governance/authorize/{p}/ — Poll elevation
POST /governance/complete/ — Receive CR
GET /governance/session/{id}/ — View chain of custody
POST /governance/elevate/ — JIT elevation
GET /governance/drivers/ — List drivers
Identity Driver Interface (§2.2):
IdentityDriver — abstract base (ISV extension point)
KeycloakDriver — Keycloak implementation
DriverRegistry — driver lookup and registration
Chronicle integration (§1.4):
Optional CloudEvents emission via CHRONICLE_WEBHOOK_URL
Forgejo push event format for receiver compatibility
Models:
Pydantic schemas for AC, CR, Principal, Accord, Operation
SQLModel DB models for persistence
Tests: 6 async tests including full AC→CR cycle
695 lines across 27 files.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
31 lines
1.6 KiB
Python
31 lines
1.6 KiB
Python
"""GET /governance/session/{id}/ — GSAP §5.5"""
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import uuid
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from fastapi import APIRouter, Depends, HTTPException
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from sqlmodel.ext.asyncio.session import AsyncSession
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from sqlmodel import select
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from gsap_broker.db import get_session
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from gsap_broker.db_models import AuthorizationContextDB, CompletionReceiptDB
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from gsap_broker.models import SessionResponse, ACStatus
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router = APIRouter()
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@router.get("/session/{context_id}/", response_model=SessionResponse, summary="View session (GSAP §5.5)")
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async def session_detail(context_id: uuid.UUID, db: AsyncSession = Depends(get_session)):
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result = await db.exec(select(AuthorizationContextDB).where(AuthorizationContextDB.context_id == context_id))
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ac_db = result.first()
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if not ac_db: raise HTTPException(status_code=404, detail="Not found.")
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cr_result = await db.exec(select(CompletionReceiptDB).where(CompletionReceiptDB.context_id == context_id))
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cr_db = cr_result.first()
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cr_data = None
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if cr_db:
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cr_data = {"outcome": cr_db.outcome, "behavioral_attestation": cr_db.behavioral_attestation_status,
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"chronicle_session_id": cr_db.chronicle_session_id, "received_at": cr_db.received_at.isoformat(),
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"signature_verified": cr_db.signature_verified}
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return SessionResponse(
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context_id=ac_db.context_id, principal_did=ac_db.principal_did,
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accord_template=ac_db.accord_template, playbook=ac_db.playbook,
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status=ACStatus(ac_db.status), issued_at=ac_db.issued_at,
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expires_at=ac_db.expires_at, consumed_at=ac_db.consumed_at,
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chronicle_event_cid=ac_db.chronicle_event_cid or None, completion_receipt=cr_data)
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