640 lines
25 KiB
Python
640 lines
25 KiB
Python
# matrix-appservice-kakaotalk - A Matrix-KakaoTalk puppeting bridge.
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# Copyright (C) 2022 Tulir Asokan, Andrew Ferrazzutti
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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 __future__ import annotations
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from typing import TYPE_CHECKING, AsyncGenerator, AsyncIterable, Awaitable, cast
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import asyncio
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import time
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from mautrix.bridge import BaseUser, async_getter_lock
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from mautrix.types import (
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EventID,
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MessageType,
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RoomID,
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TextMessageEventContent,
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UserID,
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)
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from mautrix.util.bridge_state import BridgeState, BridgeStateEvent
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from mautrix.util.opt_prometheus import Gauge, Summary, async_time
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from mautrix.util.simple_lock import SimpleLock
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from . import portal as po, puppet as pu
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from .config import Config
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from .db import User as DBUser
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from .kt.client import Client
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from .kt.client.errors import AuthenticationRequired, ResponseError
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from .kt.types.api.struct.profile import ProfileStruct
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from .kt.types.bson import Long
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from .kt.types.channel.channel_info import ChannelInfo, NormalChannelInfo, NormalChannelData
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from .kt.types.channel.channel_type import ChannelType
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from .kt.types.chat.chat import Chatlog
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from .kt.types.client.client_session import LoginDataItem, LoginResult
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from .kt.types.oauth import OAuthCredential
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from .kt.types.openlink.open_channel_info import OpenChannelData, OpenChannelInfo
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from .kt.types.packet.chat.kickout import KnownKickoutType, KickoutRes
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METRIC_CONNECT_AND_SYNC = Summary("bridge_connect_and_sync", "calls to connect_and_sync")
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METRIC_MESSAGE = Summary("bridge_on_message", "calls to on_message")
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METRIC_LOGGED_IN = Gauge("bridge_logged_in", "Users logged into the bridge")
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METRIC_CONNECTED = Gauge("bridge_connected", "Bridge users connected to KakaoTalk")
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if TYPE_CHECKING:
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from .__main__ import KakaoTalkBridge
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BridgeState.human_readable_errors.update(
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{
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"kt-reconnection-error": "Failed to reconnect to KakaoTalk",
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# TODO Use for errors in Node backend that cause session to be lost
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#"kt-connection-error": "KakaoTalk disconnected unexpectedly",
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"kt-auth-error": "Authentication error from KakaoTalk: {message}",
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"logged-out": "You're not logged into KakaoTalk",
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}
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)
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class User(DBUser, BaseUser):
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temp_disconnect_notices: bool = True
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shutdown: bool = False
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config: Config
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by_mxid: dict[UserID, User] = {}
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by_ktid: dict[int, User] = {}
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client: Client | None
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_notice_room_lock: asyncio.Lock
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_notice_send_lock: asyncio.Lock
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is_admin: bool
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permission_level: str
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_is_logged_in: bool | None
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_is_connected: bool | None
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_connection_time: float
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_db_instance: DBUser | None
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_sync_lock: SimpleLock
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_logged_in_info: ProfileStruct | None
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_logged_in_info_time: float
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def __init__(
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self,
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mxid: UserID,
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ktid: Long | None = None,
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uuid: str | None = None,
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access_token: str | None = None,
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refresh_token: str | None = None,
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notice_room: RoomID | None = None,
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) -> None:
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super().__init__(
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mxid=mxid,
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ktid=ktid,
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uuid=uuid,
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access_token=access_token,
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refresh_token=refresh_token,
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notice_room=notice_room
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)
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BaseUser.__init__(self)
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self.notice_room = notice_room
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self._notice_room_lock = asyncio.Lock()
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self._notice_send_lock = asyncio.Lock()
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(
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self.relay_whitelisted,
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self.is_whitelisted,
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self.is_admin,
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self.permission_level,
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) = self.config.get_permissions(mxid)
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self._is_logged_in = None
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self._is_connected = None
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self._connection_time = time.monotonic()
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self._sync_lock = SimpleLock(
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"Waiting for thread sync to finish before handling %s", log=self.log
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)
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self._logged_in_info = None
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self._logged_in_info_time = 0
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self.client = None
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@classmethod
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def init_cls(cls, bridge: KakaoTalkBridge) -> AsyncIterable[Awaitable[bool]]:
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cls.bridge = bridge
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cls.config = bridge.config
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cls.az = bridge.az
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cls.temp_disconnect_notices = bridge.config["bridge.temporary_disconnect_notices"]
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return (user.reload_session(is_startup=True) async for user in cls.all_logged_in())
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@property
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def is_connected(self) -> bool | None:
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return self._is_connected
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@is_connected.setter
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def is_connected(self, val: bool | None) -> None:
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if self._is_connected != val:
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self._is_connected = val
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self._connection_time = time.monotonic()
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@property
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def connection_time(self) -> float:
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return self._connection_time
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@property
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def has_state(self) -> bool:
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# TODO If more state is needed, consider returning a saved LoginResult
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return bool(self.access_token and self.refresh_token)
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# region Database getters
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def _add_to_cache(self) -> None:
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self.by_mxid[self.mxid] = self
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if self.ktid:
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self.by_ktid[self.ktid] = self
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@classmethod
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async def all_logged_in(cls) -> AsyncGenerator["User", None]:
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users = await super().all_logged_in()
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user: cls
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for user in users:
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try:
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yield cls.by_mxid[user.mxid]
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except KeyError:
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user._add_to_cache()
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yield user
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@classmethod
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@async_getter_lock
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async def get_by_mxid(cls, mxid: UserID, *, create: bool = True) -> User | None:
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if pu.Puppet.get_id_from_mxid(mxid) or mxid == cls.az.bot_mxid:
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return None
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try:
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return cls.by_mxid[mxid]
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except KeyError:
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pass
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user = cast(cls, await super().get_by_mxid(mxid))
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if user is not None:
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user._add_to_cache()
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return user
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if create:
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cls.log.debug(f"Creating user instance for {mxid}")
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user = cls(mxid)
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await user.insert()
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user._add_to_cache()
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return user
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return None
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@classmethod
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@async_getter_lock
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async def get_by_ktid(cls, ktid: int) -> User | None:
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try:
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return cls.by_ktid[ktid]
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except KeyError:
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pass
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user = cast(cls, await super().get_by_ktid(ktid))
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if user is not None:
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user._add_to_cache()
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return user
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return None
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async def get_uuid(self, force: bool = False) -> str:
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if self.uuid is None or force:
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self.uuid = await self._generate_uuid()
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# TODO Maybe don't save yet
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await self.save()
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return self.uuid
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@classmethod
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async def _generate_uuid(cls) -> str:
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return await Client.generate_uuid(await super().get_all_uuids())
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# endregion
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@property
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def oauth_credential(self) -> OAuthCredential:
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return OAuthCredential(
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self.ktid,
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self.uuid,
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self.access_token,
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self.refresh_token,
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)
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@oauth_credential.setter
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def oauth_credential(self, oauth_credential: OAuthCredential) -> None:
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self.ktid = oauth_credential.userId
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self.access_token = oauth_credential.accessToken
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self.refresh_token = oauth_credential.refreshToken
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if self.uuid != oauth_credential.deviceUUID:
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self.log.warning(f"UUID mismatch: expected {self.uuid}, got {oauth_credential.deviceUUID}")
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self.uuid = oauth_credential.deviceUUID
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async def get_own_info(self) -> ProfileStruct:
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if not self._logged_in_info or self._logged_in_info_time + 60 * 60 < time.monotonic():
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self._logged_in_info = await self.client.get_own_profile()
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self._logged_in_info_time = time.monotonic()
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return self._logged_in_info
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async def _load_session(self, is_startup: bool) -> bool:
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if self._is_logged_in and is_startup:
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return True
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elif not self.has_state:
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# If we have a user in the DB with no state, we can assume
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# KT logged us out and the bridge has restarted
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await self.push_bridge_state(
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BridgeStateEvent.BAD_CREDENTIALS,
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error="logged-out",
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)
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return False
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client = Client(self, log=self.log.getChild("ktclient"))
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user_info = await client.start()
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# NOTE On failure, client.start throws instead of returning False
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self.log.info("Loaded session successfully")
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self.client = client
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self._logged_in_info = user_info
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self._logged_in_info_time = time.monotonic()
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self._track_metric(METRIC_LOGGED_IN, True)
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self._is_logged_in = True
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self.is_connected = None
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asyncio.create_task(self.post_login(is_startup=is_startup))
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return True
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async def _send_reset_notice(self, e: AuthenticationRequired, edit: EventID | None = None) -> None:
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await self.send_bridge_notice(
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"Got authentication error from KakaoTalk:\n\n"
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f"> {e.message}\n\n"
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"If you changed your KakaoTalk password, this "
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"is normal and you just need to log in again.",
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edit=edit,
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important=True,
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state_event=BridgeStateEvent.BAD_CREDENTIALS,
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error_code="kt-auth-error",
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error_message=str(e),
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)
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await self.logout(remove_ktid=False)
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async def is_logged_in(self, _override: bool = False) -> bool:
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if not self.has_state or not self.client:
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return False
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if self._is_logged_in is None or _override:
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try:
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self._is_logged_in = bool(await self.get_own_info())
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except Exception:
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self.log.exception("Exception checking login status")
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self._is_logged_in = False
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return self._is_logged_in
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async def reload_session(
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self, event_id: EventID | None = None, retries: int = 3, is_startup: bool = False
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) -> None:
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try:
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await self._load_session(is_startup=is_startup)
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except AuthenticationRequired as e:
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await self._send_reset_notice(e, edit=event_id)
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# TODO Throw a ResponseError on network failures
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except ResponseError as e:
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will_retry = retries > 0
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retry = "Retrying in 1 minute" if will_retry else "Not retrying"
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notice = f"Failed to connect to KakaoTalk: unknown response error {e}. {retry}"
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if will_retry:
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await self.send_bridge_notice(
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notice,
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edit=event_id,
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state_event=BridgeStateEvent.TRANSIENT_DISCONNECT,
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)
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await asyncio.sleep(60)
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await self.reload_session(event_id, retries - 1, is_startup)
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else:
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await self.send_bridge_notice(
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notice,
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edit=event_id,
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important=True,
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state_event=BridgeStateEvent.UNKNOWN_ERROR,
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error_code="kt-reconnection-error",
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)
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except Exception:
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self.log.exception("Error connecting to KakaoTalk")
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await self.send_bridge_notice(
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"Failed to connect to KakaoTalk: unknown error (see logs for more details)",
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edit=event_id,
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state_event=BridgeStateEvent.UNKNOWN_ERROR,
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error_code="kt-reconnection-error",
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)
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async def logout(self, *, remove_ktid: bool = True, reset_device: bool = False) -> None:
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if self.client:
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# TODO Look for a logout API call
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await self.client.stop()
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if remove_ktid:
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await self.push_bridge_state(BridgeStateEvent.LOGGED_OUT)
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self._track_metric(METRIC_LOGGED_IN, False)
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if reset_device:
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self.uuid = await self._generate_uuid()
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self.access_token = None
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self.refresh_token = None
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self._is_logged_in = False
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self.is_connected = None
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self.client = None
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if self.ktid and remove_ktid:
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#await UserPortal.delete_all(self.ktid)
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del self.by_ktid[self.ktid]
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self.ktid = None
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await self.save()
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async def post_login(self, is_startup: bool) -> None:
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self.log.info("Running post-login actions")
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self._add_to_cache()
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try:
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puppet = await pu.Puppet.get_by_ktid(self.ktid)
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if puppet.custom_mxid != self.mxid and puppet.can_auto_login(self.mxid):
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self.log.info(f"Automatically enabling custom puppet")
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await puppet.switch_mxid(access_token="auto", mxid=self.mxid)
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except Exception:
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self.log.exception("Failed to automatically enable custom puppet")
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# TODO Check if things break when a live message comes in during syncing
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if self.config["bridge.sync_on_startup"] or not is_startup:
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sync_count = self.config["bridge.initial_chat_sync"]
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else:
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sync_count = None
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# TODO Don't auto-connect on startup if user's last state was disconnected
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await self.connect_and_sync(sync_count)
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async def get_direct_chats(self) -> dict[UserID, list[RoomID]]:
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return {
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pu.Puppet.get_mxid_from_id(portal.ktid): [portal.mxid]
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async for portal in po.Portal.get_all_by_receiver(self.ktid)
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if portal.mxid
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}
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@async_time(METRIC_CONNECT_AND_SYNC)
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async def connect_and_sync(self, sync_count: int | None) -> bool:
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# TODO Look for a way to sync all channels without (re-)logging in
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try:
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login_result = await self.client.connect()
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await self.on_connect()
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await self._sync_channels(login_result, sync_count)
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return True
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except AuthenticationRequired as e:
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await self.send_bridge_notice(
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f"Got authentication error from KakaoTalk:\n\n> {e.message}\n\n",
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important=True,
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state_event=BridgeStateEvent.BAD_CREDENTIALS,
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error_code="kt-auth-error",
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error_message=str(e),
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)
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await self.logout(remove_ktid=False)
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except Exception as e:
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self.log.exception("Failed to connect and sync")
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await self.push_bridge_state(BridgeStateEvent.UNKNOWN_ERROR, message=str(e))
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return False
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async def _sync_channels(self, login_result: LoginResult, sync_count: int | None) -> None:
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if sync_count is None:
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sync_count = self.config["bridge.initial_chat_sync"]
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if not sync_count:
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self.log.debug("Skipping channel syncing")
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return
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if not login_result.channelList:
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self.log.debug("No channels to sync")
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return
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# TODO What about removed channels? Don't early-return then
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num_channels = len(login_result.channelList)
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sync_count = num_channels if sync_count < 0 else min(sync_count, num_channels)
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await self.push_bridge_state(BridgeStateEvent.BACKFILLING)
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self.log.debug(f"Syncing {sync_count} of {num_channels} channels...")
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for login_data in login_result.channelList[:sync_count]:
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try:
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await self._sync_channel(login_data)
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except AuthenticationRequired:
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raise
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except Exception:
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self.log.exception(f"Failed to sync channel {login_data.channel.channelId}")
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await self.update_direct_chats()
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async def _sync_channel(self, login_data: LoginDataItem) -> None:
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channel_data = login_data.channel
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self.log.debug(f"Syncing channel {channel_data.channelId} (last updated at {login_data.lastUpdate})")
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channel_info = channel_data.info
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if isinstance(channel_data, NormalChannelData):
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channel_data: NormalChannelData
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channel_info: NormalChannelInfo
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self.log.debug(f"Join time: {channel_info.joinTime}")
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elif isinstance(channel_data, OpenChannelData):
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channel_data: OpenChannelData
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self.log.debug(f"channel_data link ID: {channel_data.linkId}")
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channel_info: OpenChannelInfo
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self.log.debug(f"channel_info link ID: {channel_info.linkId}")
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self.log.debug(f"openToken: {channel_info.openToken}")
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self.log.debug(f"Is direct channel: {channel_info.directChannel}")
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self.log.debug(f"Has OpenLink: {channel_info.openLink is not None}")
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else:
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self.log.error(f"Unexpected channel type: {type(channel_data)}")
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channel_info: ChannelInfo
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self.log.debug(f"channel_info channel ID: {channel_info.channelId}")
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self.log.debug(f"Channel data/info IDs match: {channel_data.channelId == channel_info.channelId}")
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self.log.debug(f"Channel type: {channel_info.type}")
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self.log.debug(f"Active user count: {channel_info.activeUserCount}")
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self.log.debug(f"New chat count: {channel_info.newChatCount}")
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self.log.debug(f"New chat count invalid: {channel_info.newChatCountInvalid}")
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self.log.debug(f"Last chat log ID: {channel_info.lastChatLogId}")
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self.log.debug(f"Last seen log ID: {channel_info.lastSeenLogId}")
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self.log.debug(f"Has last chat log: {channel_info.lastChatLog is not None}")
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self.log.debug(f"metaMap: {channel_info.metaMap}")
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self.log.debug(f"User count: {len(channel_info.displayUserList)}")
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self.log.debug(f"Has push alert: {channel_info.pushAlert}")
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for display_user_info in channel_info.displayUserList:
|
|
self.log.debug(f"Member: {display_user_info.nickname} - {display_user_info.profileURL} - {display_user_info.userId}")
|
|
|
|
portal = await po.Portal.get_by_ktid(
|
|
channel_info.channelId,
|
|
kt_receiver=self.ktid,
|
|
kt_type=channel_info.type
|
|
)
|
|
portal_info = await self.client.get_portal_channel_info(portal.channel_props)
|
|
portal_info.channel_info = channel_info
|
|
if not portal.mxid:
|
|
await portal.create_matrix_room(self, portal_info)
|
|
else:
|
|
await portal.update_matrix_room(self, portal_info)
|
|
await portal.backfill(self, is_initial=False, channel_info=channel_info)
|
|
|
|
async def get_notice_room(self) -> RoomID:
|
|
if not self.notice_room:
|
|
async with self._notice_room_lock:
|
|
# If someone already created the room while this call was waiting,
|
|
# don't make a new room
|
|
if self.notice_room:
|
|
return self.notice_room
|
|
creation_content = {}
|
|
if not self.config["bridge.federate_rooms"]:
|
|
creation_content["m.federate"] = False
|
|
self.notice_room = await self.az.intent.create_room(
|
|
is_direct=True,
|
|
invitees=[self.mxid],
|
|
topic="KakaoTalk bridge notices",
|
|
creation_content=creation_content,
|
|
)
|
|
await self.save()
|
|
return self.notice_room
|
|
|
|
async def send_bridge_notice(
|
|
self,
|
|
text: str,
|
|
edit: EventID | None = None,
|
|
state_event: BridgeStateEvent | None = None,
|
|
important: bool = False,
|
|
error_code: str | None = None,
|
|
error_message: str | None = None,
|
|
) -> EventID | None:
|
|
if state_event:
|
|
await self.push_bridge_state(
|
|
state_event,
|
|
error=error_code,
|
|
message=error_message if error_code else text,
|
|
)
|
|
if self.config["bridge.disable_bridge_notices"]:
|
|
return None
|
|
event_id = None
|
|
try:
|
|
self.log.debug("Sending bridge notice: %s", text)
|
|
content = TextMessageEventContent(
|
|
body=text,
|
|
msgtype=(MessageType.TEXT if important else MessageType.NOTICE),
|
|
)
|
|
if edit:
|
|
content.set_edit(edit)
|
|
# This is locked to prevent notices going out in the wrong order
|
|
async with self._notice_send_lock:
|
|
event_id = await self.az.intent.send_message(await self.get_notice_room(), content)
|
|
except Exception:
|
|
self.log.warning("Failed to send bridge notice", exc_info=True)
|
|
return edit or event_id
|
|
|
|
async def fill_bridge_state(self, state: BridgeState) -> None:
|
|
await super().fill_bridge_state(state)
|
|
if self.ktid:
|
|
state.remote_id = str(self.ktid)
|
|
puppet = await pu.Puppet.get_by_ktid(self.ktid)
|
|
state.remote_name = puppet.name
|
|
|
|
async def get_bridge_states(self) -> list[BridgeState]:
|
|
if not self.state:
|
|
return []
|
|
state = BridgeState(state_event=BridgeStateEvent.UNKNOWN_ERROR)
|
|
if self.is_connected:
|
|
state.state_event = BridgeStateEvent.CONNECTED
|
|
# TODO
|
|
#elif self._is_logged_in and self._is_reconnecting:
|
|
# state.state_event = BridgeStateEvent.TRANSIENT_DISCONNECT
|
|
return [state]
|
|
|
|
async def get_puppet(self) -> pu.Puppet | None:
|
|
if not self.ktid:
|
|
return None
|
|
return await pu.Puppet.get_by_ktid(self.ktid)
|
|
|
|
async def get_portal_with(self, puppet: pu.Puppet, create: bool = True) -> po.Portal | None:
|
|
# TODO
|
|
return None
|
|
"""
|
|
if not self.ktid or not self.client:
|
|
return None
|
|
return await po.Portal.get_by_ktid(
|
|
await self.client.get_dm_channel_id_for(puppet.ktid),
|
|
kt_receiver=self.ktid,
|
|
create=create,
|
|
kt_type=KnownChannelType.DirectChat if puppet.ktid != self.ktid else KnownChannelType.MemoChat
|
|
)
|
|
"""
|
|
|
|
# region KakaoTalk event handling
|
|
|
|
async def on_connect(self) -> None:
|
|
now = time.monotonic()
|
|
disconnected_at = self._connection_time
|
|
max_delay = self.config["bridge.resync_max_disconnected_time"]
|
|
first_connect = self.is_connected is None
|
|
self.is_connected = True
|
|
self._track_metric(METRIC_CONNECTED, True)
|
|
if not first_connect and disconnected_at + max_delay < now:
|
|
duration = int(now - disconnected_at)
|
|
self.log.debug(f"Disconnection lasted {duration} seconds")
|
|
elif self.temp_disconnect_notices:
|
|
await self.send_bridge_notice("Connected to KakaoTalk chats")
|
|
await self.push_bridge_state(BridgeStateEvent.CONNECTED)
|
|
|
|
async def on_disconnect(self, res: KickoutRes | None) -> None:
|
|
self.is_connected = False
|
|
self._track_metric(METRIC_CONNECTED, False)
|
|
if res:
|
|
logout = False
|
|
if res.reason == KnownKickoutType.LOGIN_ANOTHER:
|
|
reason_str = "Logged in from another desktop client."
|
|
elif res.reason == KnownKickoutType.CHANGE_SERVER:
|
|
# TODO Reconnect automatically instead
|
|
reason_str = "KakaoTalk backend server changed."
|
|
elif res.reason == KnownKickoutType.ACCOUNT_DELETED:
|
|
reason_str = "Your KakaoTalk account was deleted!"
|
|
logout = True
|
|
else:
|
|
reason_str = f"Unknown reason ({res.reason})."
|
|
if not logout:
|
|
reason_suffix = " To reconnect, use the `sync` command."
|
|
# TODO What bridge state to push?
|
|
else:
|
|
reason_suffix = " You are now logged out."
|
|
await self.logout()
|
|
await self.send_bridge_notice(f"Disconnected from KakaoTalk: {reason_str} {reason_suffix}")
|
|
|
|
async def on_logged_in(self, oauth_credential: OAuthCredential) -> None:
|
|
self.log.debug(f"Successfully logged in as {oauth_credential.userId}")
|
|
self.oauth_credential = oauth_credential
|
|
await self.push_bridge_state(BridgeStateEvent.CONNECTING)
|
|
self.client = Client(self, log=self.log.getChild("ktclient"))
|
|
await self.save()
|
|
self._is_logged_in = True
|
|
# TODO Retry network connection failures here, or in the client (like token refreshes are)?
|
|
# Should also catch unlikely authentication errors
|
|
self._logged_in_info = await self.client.start()
|
|
self._logged_in_info_time = time.monotonic()
|
|
asyncio.create_task(self.post_login(is_startup=True))
|
|
|
|
@async_time(METRIC_MESSAGE)
|
|
async def on_message(self, evt: Chatlog, channel_id: Long, channel_type: ChannelType) -> None:
|
|
portal = await po.Portal.get_by_ktid(
|
|
channel_id,
|
|
kt_receiver=self.ktid,
|
|
kt_type=channel_type
|
|
)
|
|
puppet = await pu.Puppet.get_by_ktid(evt.sender.userId)
|
|
await portal.backfill_lock.wait(evt.logId)
|
|
if not puppet.name:
|
|
portal.schedule_resync(self, puppet)
|
|
await portal.handle_remote_message(self, puppet, evt)
|
|
|
|
# TODO Many more handlers
|
|
|
|
# endregion
|