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　晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 . Prv8 Shell

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Directory : /opt/imunify360/venv/lib/python3.11/site-packages/defence360agent/plugins/

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Current File : //opt/imunify360/venv/lib/python3.11/site-packages/defence360agent/plugins/event_monitor.py

import asyncio
import contextlib
import json
from abc import ABC
from logging import getLogger
from pathlib import Path
from typing import Dict, List, Optional

from defence360agent.contracts.config import Core
from defence360agent.contracts.messages import MessageType
from defence360agent.contracts.plugins import MessageSource
from defence360agent.feature_management.plugins.native import (
    NativeFeatureManagementSettingsChange,
)
from defence360agent.plugins.event_monitor_message_processor import (
    EventProcessorBase,
    UserConfigProcessor,
)
from defence360agent.utils import recurring_check

logger = getLogger(__name__)


class EventMonitor(MessageSource, ABC):
    EVENT_DIR = Core.INBOX_HOOKS_DIR
    PATTERN = "*.*.*.*.json"

    def __init__(self):
        self._loop = None
        self._sink = None
        self._processors: List[EventProcessorBase] = []
        self._processing_task = None

    async def create_source(self, loop, sink):
        self._loop = loop
        self._sink = sink
        self._processors.append(NativeFeatureManagementSettingsChange(loop))
        self._processors.append(UserConfigProcessor(loop))
        self._processing_task = self._loop.create_task(
            self._check_inbox_folder_generate_events()
        )

    async def shutdown(self):
        self._processing_task.cancel()
        with contextlib.suppress(asyncio.CancelledError):
            await self._processing_task

    @staticmethod
    def _rmfile(file: Path):  # pragma: no cover
        try:
            file.unlink()
        except FileNotFoundError:
            pass  # do nothing if we cannot remove it, just skip it
        except Exception as e:
            logger.warning("Couldn't remove file %s %s", file, e)

    @staticmethod
    def _from_json(file: Path) -> Dict:
        return json.loads(file.read_text())

    def _event_to_message(self, file) -> Optional[MessageType.cPanelEvent]:
        try:
            username, hook, ts1, ts2, *_ = file.name.split(".")
            ts = float(ts1 + "." + ts2)
        except ValueError:
            logger.warning("hook-event-file detected with wrong name %s", file)
            return None
        try:
            return MessageType.cPanelEvent.from_hook_event(
                username=username,
                hook=hook,
                ts=ts,
                fields=self._from_json(file),
            )
        except FileNotFoundError:  # pragma: no cover
            # already deleted
            logger.warning("hook file disappeared %s", file)
        except json.JSONDecodeError:
            # wrong format or broken json
            logger.warning("hook file have broken json %s", file)
        return None

    @recurring_check(30)
    async def _check_inbox_folder_generate_events(self):
        for file in Path(self.EVENT_DIR).glob("*.*.*.json"):
            try:
                message = self._event_to_message(file)
                if message is not None:
                    for processor in self._processors:
                        if await processor.is_enabled():
                            processor.add_message(message)
            except Exception as exc:  # pragma: no cover
                logger.error("Failed to process %s hook event", exc)
            finally:
                self._rmfile(file)
        for processor in self._processors:
            await processor.process_messages()

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