tegwick
68475922bb
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tamq-ci / test (push) Failing after 6s
Assistant: codex Assistant-Model: gpt-5.6-sol Assistant-Session: 01a03397-4d51-7fd1-8ff2-946eb22ea2bc
202 lines
9.5 KiB
Python
202 lines
9.5 KiB
Python
from __future__ import annotations
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import asyncio
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import json
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import os
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import signal
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import socket
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import struct
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from pathlib import Path
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from .config import socket_path, pid_path, setting
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from .config import db_path
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from .store import Store
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from .registry import RegistryError, validate_targets
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from .control import ControlModeClient
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PROTOCOL_VERSION = "0.1"
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class Service:
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def __init__(self, path: Path | None = None, store: Store | None = None, poll_interval: float | None = None):
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self.path = path or socket_path()
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self.store = store or Store(db_path())
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self.pidfile = pid_path()
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self.server: asyncio.AbstractServer | None = None
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configured_interval = setting("delivery_poll_interval", "0.5")
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try:
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self.poll_interval = poll_interval if poll_interval is not None else max(0.05, float(configured_interval))
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except ValueError:
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self.poll_interval = poll_interval if poll_interval is not None else 0.5
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async def run(self) -> None:
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self.path.parent.mkdir(parents=True, exist_ok=True)
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self.pidfile.write_text(str(os.getpid()), encoding="utf-8")
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os.chmod(self.pidfile, 0o600)
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if self.path.exists():
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self.path.unlink()
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self.server = await asyncio.start_unix_server(self.handle, path=str(self.path))
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os.chmod(self.path, 0o600)
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stopped = asyncio.Event()
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loop = asyncio.get_running_loop()
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for sig in (signal.SIGTERM, signal.SIGINT):
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try:
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loop.add_signal_handler(sig, stopped.set)
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except (NotImplementedError, RuntimeError):
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pass
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async with self.server:
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delivery = asyncio.create_task(self._delivery_loop(stopped))
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try:
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await stopped.wait()
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finally:
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delivery.cancel()
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await asyncio.gather(delivery, return_exceptions=True)
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self.server.close()
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await self.server.wait_closed()
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self.store.disconnect_all()
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self.path.unlink(missing_ok=True)
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self.pidfile.unlink(missing_ok=True)
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self.store.close()
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async def _delivery_loop(self, stopped: asyncio.Event) -> None:
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"""Continuously inject pending messages into registered live endpoints."""
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while not stopped.is_set():
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try:
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self._deliver_once()
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except Exception:
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# A disappearing tmux session must not take down the queue.
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pass
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try:
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await asyncio.wait_for(stopped.wait(), timeout=self.poll_interval)
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except asyncio.TimeoutError:
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continue
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def _deliver_once(self) -> None:
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for endpoint in self.store.endpoints():
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repos = json.loads(endpoint["repos"])
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control = ControlModeClient(endpoint["session"])
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if not control.session_exists(expected_pid=int(endpoint["pid"])):
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self.store.disconnect_endpoint(endpoint["endpoint_id"])
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continue
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pending = [row for row in self.store.list(state="pending") if row["endpoint_id"] in (None, endpoint["endpoint_id"]) and row["target_repo"] in repos]
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if not pending:
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continue
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try:
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control.start()
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for row in pending:
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lease = self.store.claim(row["message_id"], endpoint["endpoint_id"])
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if lease is None:
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continue
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try:
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control.inject(f'{endpoint["session"]}:{row["target_repo"]}', f'#{row["sender_repo"]}: {row["body"]}')
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except Exception:
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continue
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self.store.release(row["message_id"], lease, "injected")
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finally:
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control.close()
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async def handle(self, reader: asyncio.StreamReader, writer: asyncio.StreamWriter) -> None:
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if not self._peer_allowed(writer):
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writer.write(b'{"ok":false,"error":"unauthorized peer"}\n')
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await writer.drain(); writer.close(); await writer.wait_closed(); return
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line = await reader.readline()
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try:
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request = json.loads(line or b"{}")
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op = request.get("op")
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protocol = request.get("protocol", PROTOCOL_VERSION)
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if protocol.split(".")[0] != PROTOCOL_VERSION.split(".")[0]:
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response = {"ok": False, "error": f"incompatible protocol: {protocol}", "protocol": PROTOCOL_VERSION}
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elif op == "ping":
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response = {"ok": True, "protocol": PROTOCOL_VERSION, "capabilities": ["register", "send", "history"]}
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elif op == "register":
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required = ("endpoint_id", "pid", "session", "repos")
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if any(key not in request for key in required):
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response = {"ok": False, "error": "register requires endpoint_id, pid, session, repos"}
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else:
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try:
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validate_targets(list(request["repos"]))
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endpoint_id = request.get("instance_id", request["endpoint_id"])
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self.store.register_endpoint(endpoint_id, int(request["pid"]), request["session"], list(request["repos"]))
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response = {"ok": True, "endpoint_id": request["endpoint_id"], "instance_id": endpoint_id, "protocol": PROTOCOL_VERSION}
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except (RegistryError, ValueError) as exc:
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response = {"ok": False, "error": str(exc)}
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elif op == "send":
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required = ("sender_repo", "target_repo", "body")
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if any(key not in request for key in required):
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response = {"ok": False, "error": "send requires sender_repo, target_repo, body"}
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else:
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try:
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validate_targets([request["target_repo"]])
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endpoint_id = request.get("endpoint_id")
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if endpoint_id:
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endpoint = self.store.endpoint(endpoint_id)
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if endpoint is None:
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raise RegistryError("endpoint is not registered")
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import json as _json
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if request["target_repo"] not in _json.loads(endpoint["repos"]):
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raise RegistryError("target is not attached to endpoint")
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endpoint_id = endpoint["endpoint_id"]
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message_id = self.store.add(request["sender_repo"], request["target_repo"], request["body"], endpoint=endpoint_id)
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response = {"ok": True, "message_id": message_id, "state": "pending"}
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except (RegistryError, ValueError) as exc:
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response = {"ok": False, "error": str(exc)}
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elif op == "history":
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response = {"ok": True, "messages": [dict(row) for row in self.store.list(request.get("target_repo"), request.get("state"))]}
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elif op == "ack":
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if not request.get("message_id"):
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response = {"ok": False, "error": "ack requires message_id"}
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else:
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ok = self.store.acknowledge(request["message_id"])
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response = {"ok": ok, "message_id": request["message_id"], "state": "acknowledged" if ok else "missing"}
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elif op == "endpoints":
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response = {"ok": True, "endpoints": [dict(row) for row in self.store.endpoints()]}
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elif op == "disconnect":
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endpoint_id = request.get("endpoint_id")
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if not endpoint_id:
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response = {"ok": False, "error": "disconnect requires endpoint_id"}
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else:
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self.store.disconnect_endpoint(endpoint_id)
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response = {"ok": True, "endpoint_id": endpoint_id, "state": "disconnected"}
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else:
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response = {"ok": False, "error": "unsupported operation"}
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except (json.JSONDecodeError, UnicodeDecodeError):
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response = {"ok": False, "error": "invalid JSON"}
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writer.write((json.dumps(response) + "\n").encode())
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await writer.drain()
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writer.close()
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await writer.wait_closed()
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@staticmethod
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def _peer_allowed(writer: asyncio.StreamWriter) -> bool:
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sock = writer.get_extra_info("socket")
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if sock is None or not hasattr(socket, "SO_PEERCRED"):
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return True
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try:
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_, uid, _ = struct.unpack("3i", sock.getsockopt(socket.SOL_SOCKET, socket.SO_PEERCRED, struct.calcsize("3i")))
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return uid == os.getuid()
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except OSError:
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return False
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def close(self) -> None:
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self.store.close()
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async def ping(path: Path | None = None) -> bool:
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try:
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reader, writer = await asyncio.open_unix_connection(str(path or socket_path()))
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writer.write(b'{"op":"ping"}\n'); await writer.drain()
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result = json.loads(await reader.readline())
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writer.close(); await writer.wait_closed()
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return bool(result.get("ok"))
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except (OSError, json.JSONDecodeError):
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return False
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async def request(payload: dict, path: Path | None = None) -> dict:
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reader, writer = await asyncio.open_unix_connection(str(path or socket_path()))
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writer.write((json.dumps(payload) + "\n").encode())
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await writer.drain()
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response = json.loads(await reader.readline())
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writer.close()
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await writer.wait_closed()
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return response
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