import json
from logging import getLogger
from pathlib import Path
from typing import Literal
from defence360agent.contracts.config import ANTIVIRUS_MODE
from defence360agent.contracts.plugins import Scope
logger = getLogger(__name__)
BASE_DIR = Path("/var/imunify360")
PERSISTENT_STATE_DIR = BASE_DIR / ".persistent_state"
LOCK_FILES = set()
def register_lock_file(
lock_file: str, scope: Literal[Scope.AV, Scope.IM360, Scope.AV_IM360]
) -> Path:
"""Register lock file for further usage."""
_lock_file = PERSISTENT_STATE_DIR / f".{lock_file}.lock"
if scope == Scope.AV_IM360:
LOCK_FILES.add(_lock_file)
elif scope == Scope.AV and ANTIVIRUS_MODE:
LOCK_FILES.add(_lock_file)
elif scope == Scope.IM360 and not ANTIVIRUS_MODE:
LOCK_FILES.add(_lock_file)
return _lock_file
def save_state(class_name: str, values: dict):
"""Save state to a file in .persistent_state folder."""
folder_path = PERSISTENT_STATE_DIR
try:
folder_path.mkdir(parents=True, exist_ok=True)
file_path = folder_path / f"{class_name}.state"
json.dump(values, file_path.open("w"))
except (AttributeError, OSError) as e:
logger.error("Failed to save state: %s %s", class_name, e)
def load_state(class_name) -> dict:
"""Load state from a file in .persistent_state folder."""
folder_path = PERSISTENT_STATE_DIR
file_path = folder_path / f"{class_name}.state"
if file_path.exists():
try:
return json.load(file_path.open("r"))
except (json.JSONDecodeError, OSError, UnicodeDecodeError) as e:
logger.error("Failed to load state: %s %s", class_name, e)
return dict()
def remove_unused_locks():
"""Remove all unused lock files from .persistent_state folder."""
for lock_file in PERSISTENT_STATE_DIR.glob("*.lock"):
if lock_file not in LOCK_FILES:
lock_file.unlink()
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