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118 lines
3.6 KiB
Python
118 lines
3.6 KiB
Python
"""Uvicorn transport for the FastAPI orchestrator control plane."""
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from __future__ import annotations
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import os
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import socket
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import threading
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import uvicorn
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from ..orchestrator_auth import ROLE_CLI, mint
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from ..trust_domain import CONTROL_PLANE
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from .api import MAX_BODY_BYTES, ORCHESTRATOR_AUTH_HEADER, create_app
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from .service import OrchestratorCore
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MAX_REQUESTS = 32
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KEEP_ALIVE_TIMEOUT_SECONDS = 10
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def dispatch(
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orchestrator: OrchestratorCore,
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method: str,
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path: str,
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body: bytes,
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*,
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role: str | None = ROLE_CLI,
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) -> tuple[int, dict[str, object]]:
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"""Socket-free compatibility adapter for route unit tests.
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Production requests always enter through the FastAPI ASGI application.
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"""
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from fastapi.testclient import TestClient
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key = "in-process-dispatch-key"
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headers: dict[str, str] = {"content-type": "application/json"}
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if role is not None:
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headers[ORCHESTRATOR_AUTH_HEADER] = mint(role, key)
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response = TestClient(create_app(orchestrator, signing_key=key)).request(
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method, path, content=body, headers=headers,
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)
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payload = response.json()
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if response.status_code == 422:
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detail = payload.get("detail", []) if isinstance(payload, dict) else []
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field = ""
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if isinstance(detail, list) and detail and isinstance(detail[0], dict):
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location = detail[0].get("loc", ())
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if isinstance(location, (list, tuple)) and len(location) > 1:
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field = str(location[1])
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suffix = f": {field}" if field else ""
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return 400, {"error": f"invalid request body{suffix}"}
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if isinstance(payload, dict) and "detail" in payload and "error" not in payload:
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payload = {"error": payload["detail"]}
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return response.status_code, payload
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class OrchestratorServer:
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"""Small lifecycle wrapper around Uvicorn with an eagerly bound socket."""
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def __init__(self, config: uvicorn.Config) -> None:
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self._server = uvicorn.Server(config)
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self._stopped = threading.Event()
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self._socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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self._socket.bind((config.host, config.port))
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self._socket.listen(config.backlog)
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self.server_address = self._socket.getsockname()
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def run(self) -> None:
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try:
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self._server.run(sockets=[self._socket])
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finally:
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self._stopped.set()
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def serve_forever(self) -> None:
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self.run()
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def shutdown(self) -> None:
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self._server.should_exit = True
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self._stopped.wait(timeout=5)
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def server_close(self) -> None:
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self._socket.close()
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def make_server(
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orchestrator: OrchestratorCore,
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host: str = "127.0.0.1",
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port: int = 0,
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*,
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signing_key: str | None = None,
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) -> OrchestratorServer:
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"""Build a bounded Uvicorn server around the orchestrator application."""
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key = CONTROL_PLANE.key_from_env() if signing_key is None else signing_key
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app = create_app(orchestrator, signing_key=key)
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config = uvicorn.Config(
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app,
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host=host,
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port=port,
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access_log=bool(os.environ.get("BOT_BOTTLE_ORCHESTRATOR_DEBUG")),
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log_level="info",
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limit_concurrency=MAX_REQUESTS,
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timeout_keep_alive=KEEP_ALIVE_TIMEOUT_SECONDS,
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server_header=False,
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)
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return OrchestratorServer(config)
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__all__ = [
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"KEEP_ALIVE_TIMEOUT_SECONDS",
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"MAX_BODY_BYTES",
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"MAX_REQUESTS",
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"ORCHESTRATOR_AUTH_HEADER",
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"OrchestratorServer",
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"create_app",
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"dispatch",
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"make_server",
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]
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