PortHunter MCP

from __future__ import annotations import json, time from pathlib import Path from typing import Any, Optional class SimpleCache: """ Caché JSON por llave (string) con TTL en segundos. """ def __init__(self, cache_file: Path, ttl_seconds: int = 7*24*3600) -> None: self.cache_file = cache_file self.ttl = ttl_seconds self._data = {"_ts": int(time.time()), "items": {}} # key -> {"ts":int,"value":Any} if cache_file.exists(): try: self._data = json.loads(cache_file.read_text(encoding="utf-8")) except Exception: pass def get(self, key: str) -> Optional[Any]: it = self._data["items"].get(key) if not it: return None if int(time.time()) - it.get("ts", 0) > self.ttl: # expirado self._data["items"].pop(key, None) self._flush() return None return it.get("value") def set(self, key: str, value: Any) -> None: self._data["items"][key] = {"ts": int(time.time()), "value": value} self._flush() def _flush(self) -> None: try: self.cache_file.write_text(json.dumps(self._data, ensure_ascii=False), encoding="utf-8") except Exception: pass