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。 .
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Current File : //opt/imunify360/venv/lib64/python3.11/site-packages/defence360agent/contracts/hooks.py
import grp
import os

from defence360agent.contracts.config import Config, Core
from defence360agent.contracts.config_provider import CachedConfigReader
from defence360agent.utils import antivirus_mode


class Schema:
    @staticmethod
    def dict(data):
        return {
            "type": "dict",
            "schema": data,
            "default": {},
        }

    @staticmethod
    def list_of_strings(regex=None):
        return {
            "type": "list",
            "schema": {
                "type": "string",
                **({"regex": regex} if regex else {}),
            },
            "nullable": False,
            "default": [],
        }

    @staticmethod
    def list_of_emails(default_enabled=True):
        regex = (
            r"^.+@(.+\.)+.+|default$" if default_enabled else r"^.+@(.+\.)+.+$"
        )
        return Schema.list_of_strings(regex)

    @staticmethod
    def period():
        return {
            "period": {
                "type": "integer",
                "coerce": int,
                "min": 1,
                "default": 1,
            }
        }

    @staticmethod
    def string(nullable):
        return {
            "type": "string",
            "nullable": nullable,
        }

    @staticmethod
    def enabled():
        return {
            "enabled": {
                "type": "boolean",
                "default": False,
            }
        }

    @staticmethod
    def admin(period):
        return {
            "ADMIN": Schema.dict(
                {
                    **Schema.enabled(),
                    "admin_emails": Schema.list_of_emails(),
                    **(Schema.period() if period else {}),
                }
            )
        }

    @staticmethod
    def script(period):
        return {
            "SCRIPT": Schema.dict(
                {
                    **Schema.enabled(),
                    "scripts": Schema.list_of_strings(r"^\/.+$"),
                    **(Schema.period() if period else {}),
                }
            )
        }

    @staticmethod
    def user(period):
        return {
            "USER": Schema.dict(
                {
                    **Schema.enabled(),
                    **(Schema.period() if period else {}),
                }
            )
        }

    @staticmethod
    def target_script(period=False):
        return Schema.dict(
            {
                **Schema.script(period=period),
            }
        )

    @staticmethod
    def target_admin_and_script(period=False):
        return Schema.dict(
            {
                **Schema.admin(period=period),
                **Schema.script(period=period),
            }
        )

    @staticmethod
    def target_all(period=False):
        return Schema.dict(
            {
                **Schema.admin(period=period),
                # **Schema.user(period=period), # stage 2
                **Schema.script(period=period),
            }
        )


class HooksConfigReader(CachedConfigReader):
    GROUP_NAME = "_imunify"

    def _post_write(self):
        os.chmod(self.path, 0o640)
        os.chown(self.path, 0, grp.getgrnam(self.GROUP_NAME).gr_gid)


class HooksConfig(Config):
    def __init__(
        self, path=os.path.join(Core.GLOBAL_CONFDIR, Core.HOOKS_CONFIGFILENAME)
    ):
        validation_schema = (
            {
                "admin": Schema.dict(
                    {
                        "default_emails": Schema.list_of_emails(
                            default_enabled=False
                        ),
                        "notify_from_email": {
                            "type": "string",
                            "default": None,
                            "nullable": True,
                        },
                        "locale": Schema.string(nullable=True),
                    }
                ),
                "users": {
                    "type": "list",
                    "schema": Schema.dict(
                        {
                            "username": Schema.string(nullable=False),
                            "emails": Schema.list_of_emails(),
                            "locale": Schema.string(nullable=True),
                        }
                    ),
                    "nullable": True,
                    "default": [],
                },
                "rules": Schema.dict(
                    {
                        "REALTIME_MALWARE_FOUND": (
                            Schema.target_admin_and_script(period=True)
                        ),
                        "USER_SCAN_MALWARE_FOUND": Schema.target_all(),
                        "SCRIPT_BLOCKED": Schema.target_admin_and_script(
                            period=True
                        ),
                        "USER_SCAN_STARTED": Schema.target_script(),
                        "CUSTOM_SCAN_STARTED": Schema.target_script(),
                        "USER_SCAN_FINISHED": Schema.target_script(),
                        "CUSTOM_SCAN_FINISHED": Schema.target_script(),
                        "CUSTOM_SCAN_MALWARE_FOUND": (
                            Schema.target_admin_and_script()
                        ),
                    }
                ),
                "default": {},
            }
            if antivirus_mode.disabled
            else {
                "rules": Schema.dict(
                    {
                        "USER_SCAN_MALWARE_FOUND": Schema.target_script(),
                        "USER_SCAN_STARTED": Schema.target_script(),
                        "CUSTOM_SCAN_STARTED": Schema.target_script(),
                        "USER_SCAN_FINISHED": Schema.target_script(),
                        "CUSTOM_SCAN_FINISHED": Schema.target_script(),
                        "CUSTOM_SCAN_MALWARE_FOUND": Schema.target_script(),
                    }
                ),
                "default": {},
            }
        )
        super().__init__(
            path=path,
            validation_schema=validation_schema,
            config_reader=HooksConfigReader(path),
        )

    def get(self):
        data = self.config_to_dict()
        data.pop("users", None)
        return data

    def update(self, data):
        data.pop("users", None)
        self.dict_to_config(data)

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