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Current File : //opt/imunify360/venv/lib64/python3.11/site-packages/im360/plugins/resident/group_ip_sync.py

import asyncio
from contextlib import suppress
from ipaddress import ip_network
from logging import getLogger

from defence360agent.contracts.messages import MessageType
from defence360agent.contracts.plugins import MessageSink, expect
from defence360agent.utils import recurring_check
from im360.api.ips import IPApi
from im360.model.firewall import IPList

logger = getLogger(__name__)


class GroupIPSyncPlugin(MessageSink):
    def __init__(self):
        self.loop = None
        self.message_queue_task = None
        self.queue = None

    async def create_sink(self, loop):
        self.loop = loop
        self.queue = asyncio.Queue()
        self.message_queue_task = self.loop.create_task(self.process())

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

    @expect(MessageType.GroupIPSyncPush)
    async def handle_group_ip_push(self, message):
        await self.queue.put(message)

    async def _do_process(self, message):
        if message["drop_ips"] is True:
            logger.info("Received drop_ips=true in GROUP_SYNC")
            current = list(
                IPList.select().where(IPList.scope == IPList.SCOPE_GROUP),
            )
            for model in current:
                await IPApi.unblock([model.ip_network], model.listname)
                logger.info(
                    "IP %s removed from %s list via GROUP_SYNC.drop_ips",
                    model.ip,
                    model.listname,
                )
        for item in message["add"]:
            _, not_affected = await self._do_block(item)
            if not_affected:
                if not_affected[0]["listname"] is not None:
                    await IPApi.unblock(
                        [not_affected[0]["rec"]], not_affected[0]["listname"]
                    )
                    logger.info(
                        "IP %s removed from %s list via GROUP_SYNC.add"
                        " to be replaced",
                        item["ip"],
                        item["list"],
                    )
                await self._do_block(item)
            logger.info(
                "IP %s added to %s list via GROUP_SYNC.add",
                item["ip"],
                item["list"],
            )
        for item in message["del"]:
            await IPApi.unblock([ip_network(item["ip"])], item["list"])
            logger.info(
                "IP %s removed from %s list via GROUP_SYNC.del",
                item["ip"],
                item["list"],
            )

    @recurring_check(0)
    async def process(self):
        while True:
            message = await self.queue.get()
            try:
                await self._do_process(message)
            finally:
                self.queue.task_done()

    @staticmethod
    def _do_block(item):
        return IPApi.block(
            [ip_network(item["ip"])],
            listname=item["list"],
            comment=item["comment"],
            expiration=item["expiration"],
            full_access=item["full_access"],
            scope=IPList.SCOPE_GROUP,
            # item will not be removed via synclist if it is manually added
            # it is actually manually added on another server
            manual=True,
        )

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