105 lines
3.7 KiB
Python
105 lines
3.7 KiB
Python
# reminder - A maubot plugin that reacts to messages that match predefined rules.
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# Copyright (C) 2019 Tulir Asokan
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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from typing import Type, Tuple, Dict
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import time
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from attr import dataclass
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from mautrix.types import EventType, MessageType, UserID, RoomID
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from mautrix.util.config import BaseProxyConfig
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from maubot import Plugin, MessageEvent
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from maubot.handlers import event
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from .config import Config, ConfigError
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@dataclass
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class FloodInfo:
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max: int
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delay: int
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count: int
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last_message: int
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def bump(self) -> bool:
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now = int(time.time())
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if self.last_message + self.delay < now:
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self.count = 0
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self.count += 1
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if self.count > self.max:
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return True
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self.last_message = now
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return False
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class ReactBot(Plugin):
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allowed_msgtypes: Tuple[MessageType, ...] = (MessageType.TEXT, MessageType.EMOTE)
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user_flood: Dict[UserID, FloodInfo]
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room_flood: Dict[RoomID, FloodInfo]
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@classmethod
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def get_config_class(cls) -> Type[BaseProxyConfig]:
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return Config
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async def start(self) -> None:
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await super().start()
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self.user_flood = {}
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self.room_flood = {}
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self.on_external_config_update()
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def on_external_config_update(self) -> None:
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self.config.load_and_update()
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try:
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self.config.parse_data()
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except ConfigError:
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self.log.exception("Failed to load config")
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for fi in self.user_flood.values():
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fi.max = self.config["antispam.user.max"]
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fi.delay = self.config["antispam.user.delay"]
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for fi in self.room_flood.values():
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fi.max = self.config["antispam.room.max"]
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fi.delay = self.config["antispam.room.delay"]
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def _make_flood_info(self, for_type: str) -> 'FloodInfo':
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return FloodInfo(max=self.config[f"antispam.{for_type}.max"],
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delay=self.config[f"antispam.{for_type}.delay"],
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count=0, last_message=0)
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def _get_flood_info(self, flood_map: dict, key: str, for_type: str) -> 'FloodInfo':
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try:
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return flood_map[key]
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except KeyError:
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fi = flood_map[key] = self._make_flood_info(for_type)
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return fi
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def is_flood(self, evt: MessageEvent) -> bool:
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return (self._get_flood_info(self.user_flood, evt.sender, "user").bump()
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or self._get_flood_info(self.room_flood, evt.room_id, "room").bump())
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@event.on(EventType.ROOM_MESSAGE)
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async def event_handler(self, evt: MessageEvent) -> None:
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if evt.sender == self.client.mxid or evt.content.msgtype not in self.allowed_msgtypes:
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return
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for name, rule in self.config.rules.items():
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match = rule.match(evt)
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if match is not None:
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if self.is_flood(evt):
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return
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try:
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await rule.execute(evt, match)
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except Exception:
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self.log.exception(f"Failed to execute {name}")
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return
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